An automatic press forming die for a heat sink panel

Abstract

The utility model relates to radiator manufacturing technical field, concretely relates to a kind of automatic stamping forming die of radiator panel.The die includes upper die unit, lower die unit, positioning assembly, stripping assembly, buffer assembly and cutting integrated assembly;Upper die unit includes first upper forming block and secondary upper forming block, and lower die unit includes first lower forming block and secondary lower forming block;Along the direction of material tape, first upper and lower forming block cooperate to form preformed bending profile, and secondary upper and lower forming block cooperate to form final calibration profile and cutting structure.Positioning assembly realizes accurate guidance and limit;Stripping assembly realizes material tape automatic ejection;Buffer assembly absorbs closing impact;Cutting integrated assembly is moved by push rod mechanism to realize fixed-length cutting with secondary upper forming block.The utility model integrates preforming, final calibration and fixed-length cutting in the same die, realizes continuous automation production, and has the advantages of high forming precision, high production efficiency, low cost and strong adaptability.

Description

Technical Field

[0001] This utility model relates to the field of radiator manufacturing technology, specifically to an automatic stamping mold for radiator panels. Background Technology

[0002] As the core heat exchange element of heat dissipation equipment, the molding quality of the panel of a plate radiator directly affects the assembly accuracy and heat dissipation performance. The panel usually has a complex toothed structure, which places high demands on the dimensional accuracy, bending angle consistency and surface quality.

[0003] Currently, the conventional processing method for panel radiator panels mainly involves multiple decentralized molding processes. Specifically, the material strip needs to pass through several independent stations, including pre-forming, final shaping, and fixed-length cutting, with material transfer between each process relying heavily on manual labor or simple conveyor devices. This decentralized processing mode has the following prominent problems: First, the process is cumbersome and production continuity is poor. Multiple processes are completed on different equipment, and there is a lack of effective coordination between processes, making it difficult to form a stable continuous production line. The overall production process is long, which restricts the improvement of production efficiency.

[0004] Secondly, it is difficult to control the machining accuracy consistently. Distributed machining means that the workpiece needs to be clamped and positioned multiple times. Each positioning introduces positioning errors. These errors accumulate between processes, leading to problems such as increased overall panel size deviation, uneven bending angles, and tooth position offsets, ultimately affecting the assembly effect and heat dissipation performance of the heat sink.

[0005] Secondly, production costs are high. Multiple decentralized processes require the investment of multiple molding machines and related auxiliary equipment, resulting in large equipment investments. Manual transfer between processes not only increases labor costs but also easily causes scratches, bumps, and local deformation on the panel surface, increasing the scrap rate and further driving up the overall cost of a single product.

[0006] In addition, traditional molds are generally designed for single-specification products. When it is necessary to change to different models of panels, the entire mold often needs to be replaced, which results in a long adjustment cycle and high costs, making it difficult to quickly respond to the market's demand for multi-specification products. Utility Model Content

[0007] The purpose of this utility model is to provide an automatic stamping and forming mold for radiator panels, which realizes continuous production of radiator panels from raw material feeding, dual-station step-by-step pressing to finished product output, greatly shortens the processing cycle, significantly improves production efficiency, and meets the needs of large-scale continuous production.

[0008] To achieve the above objectives, this application proposes an automatic stamping die for a radiator panel, comprising: The upper mold unit is used to connect to an external hydraulic press and perform up-and-down reciprocating motion; The lower mold unit is fixedly installed on the equipment workbench and cooperates with the upper mold unit. Positioning components, distributed on the upper mold unit and the lower mold unit, are used to guide and limit the material strip and ensure mold closing accuracy; A demolding assembly, mounted on the lower mold unit, is used to eject the strip from the cavity; A buffer assembly, located between the upper mold unit and the lower mold unit, is used to provide buffering and shock absorption during the mold closing process; A cutting integration component is installed on the upper mold unit to achieve fixed-length cutting while the product is being formed; The upper mold unit includes a primary upper forming block and a secondary upper forming block, and the lower mold unit includes a primary lower forming block and a secondary lower forming block. Along the material strip's travel direction, the primary upper forming block and the primary lower forming block cooperate to form a pre-formed bending profile to achieve material strip pre-forming. The secondary upper forming block and the secondary lower forming block cooperate to form a final shaping profile and a cutting structure to achieve final shaping and fixed-length cutting of the material strip. The demolding assembly includes a demolding template and a lower spring; the demolding template is located above the lower mold base in the lower mold unit and on the discharge side of the one-time forming area; the lower spring is accommodated in the receiving cavity of the lower mold base in the lower mold unit and is used to automatically push out the demolding template after forming, thereby driving the material strip to leave the cavity.

[0009] In one embodiment, the upper mold unit further includes an upper support plate, an upper mold base, an upper template, a primary forming upper fixing block, and a secondary forming upper fixing block; the top of the upper mold base is fixedly connected to the upper support plate, and the bottom of the upper mold base is respectively connected to the upper template and the secondary forming upper fixing block; the secondary forming block is fixed on the secondary forming upper fixing block; the bottom of the upper template is connected to the primary forming upper fixing block, and the primary forming block is fixed on the primary forming upper fixing block.

[0010] In one embodiment, the lower mold unit further includes a lower support plate, a lower mold base, a lower material tray, and an upper material tray; the lower mold base is connected to the lower support plate; the primary lower forming block and the secondary lower forming block are both fixed on the lower mold base and are located on both sides of the demolding assembly; at the feeding end of the lower mold base, the lower material tray and the upper material tray are arranged sequentially from bottom to top to support the material strip.

[0011] In one embodiment, the positioning component includes a material limiting block, a pressing block, and a product limiting block; the material limiting block is disposed on both sides of the upper material tray to limit the left and right deviation of the material strip; the product limiting block is disposed on both sides of the discharge end of the lower mold base to limit the left and right deviation of the final product; the pressing block is fixed to the side of the upper mold plate to press the material strip and prevent the material strip from moving around.

[0012] In one embodiment, the positioning component further includes guide pillars and guide sleeves. The guide pillars are disposed around the lower mold base, and the guide sleeves are disposed around the upper mold base. The guide pillars and guide sleeves cooperate to achieve precise mold closing.

[0013] In one embodiment, the buffer assembly includes an upper mold buffer fixed on an upper mold base and a lower mold buffer fixed on a lower mold base, wherein the upper mold buffer and the lower mold buffer are vertically corresponding; a spring is sleeved on the outer periphery of the lower mold buffer, and when the mold is closed, the lower mold buffer and the spring extend into the interior of the upper mold buffer.

[0014] In one embodiment, the cutting integrated assembly includes a push rod mechanism, the secondary upper forming block, and the secondary lower forming block; the push rod mechanism retracts during the mold parting gap at a set time, driving the secondary upper forming block to move to the cutting position, and then cooperates with the top of the secondary lower forming block during the next mold closing to achieve fixed-length cutting.

[0015] In one embodiment, the push rod mechanism includes a support rod and a hydraulic push rod. The hydraulic push rod is fixed to the upper mold base by the support rod and moves synchronously with the upper mold. The push block at the end of the hydraulic push rod is fixed to the secondary forming upper fixing block.

[0016] In one embodiment, the secondary forming upper fixing block is provided with a sliding hole, and a sliding rod is fixed in the sliding hole. The upper part of the sliding rod moves in the sliding groove of the upper mold base.

[0017] The advantages of the above technical solution adopted in this utility model compared with the prior art are: 1. This utility model sequentially forms a pre-formed bending surface and a final-formed surface along the material conveyor belt's travel direction, and integrates a fixed-length cutting function within the same mold, consolidating the traditionally multiple and dispersed pressing and cutting processes into a single machine for continuous completion. This integrated design significantly reduces process changeover time and manual intervention, achieving integrated continuous production of pre-forming, final-formation, and fixed-length cutting, resulting in a significant improvement in production efficiency and meeting the needs of large-scale mass production.

[0018] 2. The positioning component of this utility model provides precise constraints on the material strip and product throughout the entire process from feeding and forming to discharging, effectively reducing the cumulative effect of positioning errors between processes, and ensuring that the overall dimensional accuracy of the panel, the consistency of bending angles, and the accuracy of tooth position are all within a high standard control range.

[0019] 3. The demolding component of this utility model can automatically eject the material strip after molding, eliminating the need for manual assistance in removing the parts and preventing damage to the workpiece. Simultaneously, the buffer component effectively absorbs the impact of mold closing, protecting the mold structure and workpiece from damage, extending the mold's service life, and ensuring long-term continuous and stable operation.

[0020] 4. The cutting integrated component of this utility model works in sync with the forming action, eliminating the need for additional cutting equipment, saving the subsequent separate cutting process, further simplifying the production process and improving production continuity. Attached Figure Description

[0021] Figure 1 A cross-sectional view of the automatic stamping die for the radiator panel; Figure 2 This is a schematic diagram of the automatic stamping and forming mold for the radiator panel. Wherein: 1-Upper support plate; 2-Push block; 3-Support rod; 4-Hydraulic push rod; 5-Final product; 6-Product limiting block; 7-Lower support plate; 8-Upper mold base; 9-Upper template; 10-First-stage forming upper fixing block; 11-Material strip; 12-Material limiting block; 13-Upper material tray; 14-Lower material tray; 15-Upper mold buffer; 16-Lower mold buffer; 17-Secondary upper forming block; 18-Secondary lower forming block; 19-Lower mold base; 20-First-stage lower forming block; 21-Guide sleeve; 22-Guide post; 23-Removal template; 24-First-stage upper forming block; 25-Pressure block; 26-Secondary forming upper fixing block; 27-Sliding hole. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects to be solved by 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 are not intended to limit the scope of this application.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0024] In the description of this application, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" 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; 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.

[0026] Example 1: like Figure 1-2 As shown, this embodiment provides an automatic stamping forming mold for a radiator panel. The main body of the mold is made of high-strength wear-resistant alloy steel 40CrNiMoA, and can be adaptively adjusted according to different panel specifications, allowing the metal strip to complete multiple continuous forming and cutting processes under pressure. Specifically, the mold includes an upper mold unit, a lower mold unit, a positioning component, a demolding component, a buffer component, and a cutting integrated component.

[0027] The upper mold unit is used to connect to an external hydraulic press and perform reciprocating up-and-down motion. The upper mold unit includes an upper support plate 1, an upper mold base 8, an upper template 9, a primary forming block 24, a primary forming upper fixing block 10, a secondary forming block 17, and a secondary forming upper fixing block 26. The top of the upper mold base 8 is fixedly connected to the upper support plate 1, and the bottom of the upper mold base 8 is connected to both the upper template 9 and the secondary forming upper fixing block 26. The secondary forming block 17 is fixed to the secondary forming upper fixing block 26. The bottom of the upper template 9 is connected to the primary forming upper fixing block 10, and the primary forming block 24 is fixed to the primary forming upper fixing block 10.

[0028] The lower mold unit is fixedly installed on the equipment workbench and cooperates with the upper mold unit. The lower mold unit includes a lower support plate 7, a lower mold base 19, a lower material tray 14, an upper material tray 13, a primary lower forming block 20, and a secondary lower forming block 18. The lower mold base 19 is connected to the lower support plate 7. The primary lower forming block 20 and the secondary lower forming block 18 are both fixed on the lower mold base 19 and are located on both sides of the demolding assembly. At the feeding end of the lower mold base 19, the lower material tray 14 and the upper material tray 13 are arranged sequentially from bottom to top to support the material strip 11.

[0029] Positioning components are distributed on the upper and lower mold units to guide and limit the material strip, ensuring mold closing accuracy. The positioning components include a material limiting block 12, a pressure block 25, a product limiting block 6, guide pillars 22, and guide sleeves 21. The material limiting block 12 is located on both sides of the upper material tray 13 to limit the lateral displacement of the material strip 11. The product limiting block 6 is located on both sides of the discharge end of the lower mold base 19 to limit the lateral displacement of the final product. The pressure block 25 is fixed to the bottom of the upper mold plate 9 to press the material strip 11, preventing it from moving around. The guide pillars 22 are located around the lower mold base 19, and the guide sleeves 21 are located around the upper mold base 8. The guide pillars 22 and guide sleeves 21 cooperate to achieve precise mold closing. Through the combination of multiple positioning and limiting structures, the positional deviation of the material strip within the cavity can be controlled within 0.3mm, and it remains pressed during the molding process to prevent movement.

[0030] The demolding assembly is mounted on the lower mold unit and is used to eject the material strip from the cavity. The demolding assembly includes a demolding plate 23 and a lower spring. The demolding plate 23 is located above the lower mold base 19 and on the discharge side of the one-time molding area. The lower spring is housed in the receiving cavity of the lower mold base 19 and is used to automatically eject the demolding plate 23 after molding, thereby driving the material strip out of the cavity, and cooperating with the conveyor belt to achieve continuous material discharge.

[0031] The buffer assembly is located between the upper mold unit and the lower mold unit, and is used to provide cushioning and shock absorption during mold closing. The buffer assembly includes an upper mold buffer 15 fixed on the upper mold base 8 and a lower mold buffer 16 fixed on the lower mold base 19. The upper mold buffer 15 and the lower mold buffer 16 are vertically aligned. A spring is sleeved on the outer periphery of the lower mold buffer 16, and during mold closing, the lower mold buffer 16 and the spring extend into the interior of the upper mold buffer 15.

[0032] The cutting integrated assembly is mounted on the upper mold unit and is used to achieve fixed-length cutting while the product is being formed. The cutting integrated assembly includes a push rod mechanism, a secondary upper forming block 17, and a secondary lower forming block 18. The push rod mechanism includes a support rod 3 and a hydraulic push rod 4. The hydraulic push rod 4 is fixed to the upper mold base 8 by the support rod 3 and moves synchronously with the upper mold. The push block 2 at the end of the hydraulic push rod 4 is fixed to the secondary forming upper fixing block 26. The secondary forming upper fixing block 26 has a sliding hole 27, and a sliding rod is fixed in the sliding hole 27. The upper part of the sliding rod moves in the sliding groove of the upper mold base 8. The push rod mechanism retracts in the mold parting gap at a set time, driving the secondary upper forming block 17 to the cutting position, and then cooperates with the top of the secondary lower forming block 18 during the next mold closing to achieve fixed-length cutting.

[0033] Along the direction of material strip travel, the primary upper forming block 24 and the primary lower forming block 20 cooperate to form a pre-formed bending profile to achieve material strip pre-forming; the secondary upper forming block 17 and the secondary lower forming block 18 cooperate to form a final shaping profile and cutting structure to achieve final shaping and fixed-length cutting of the material strip.

[0034] Example 2: This embodiment provides a working method based on the mold described in Embodiment 1, specifically including the following steps: The feed end conveyor belt drives the material belt 11 to be fed into the mold cavity through the upper material tray 13 in a stepping manner, and the material limiting block 12 completes the lateral limiting; The conveyor belt stops feeding material, and the external hydraulic press drives the upper mold unit to move downward. When the upper mold unit moves downward, the pressure block 25 moves downward synchronously with the upper template 9. During the mold closing process, it first contacts the material belt 11 to perform preliminary pressing and leveling of the material belt, eliminating the internal stress and warping deformation of the plate. The upper mold unit continues to descend and closes with the lower mold unit. The upper forming block 24 and the lower forming block 20 work together to extrude and complete the pre-forming of the toothed structure of the material strip. As the upper mold unit rises, the lower spring is no longer under pressure, and the spring resets, pushing out the ejector plate 23. The ejector plate 23 then drives the material strip away from the primary forming cavity. Subsequently, the conveyor belt starts again, conveying the pre-formed material strip forward one step distance into the secondary forming area. The conveyor belt stops feeding material, the upper mold unit moves down again to close the mold, the secondary upper forming block 17 and the secondary lower forming block 18 cooperate to extrude, complete the final shaping of the toothed structure of the material belt and control the springback. The upper mold unit rises, the lower spring resets again, and the strip that has completed the final shaping is ejected from the secondary forming cavity through the ejector plate 23; When the strip is processed to the set length, the push rod mechanism retracts in the mold parting gap, driving the secondary upper forming block 17 to move to the top position of the left end face of the secondary lower forming block 18; during the next mold closing, the secondary upper forming block 17 and the secondary lower forming block 18 cooperate to achieve fixed-length cutting of the product. After the fixed-length cutting is completed, the push rod mechanism extends in the gap between the upper and lower molds, driving the secondary forming upper fixed block 26 and the secondary upper forming block 17 to reset to the forming mating position with the secondary lower forming block 18, in preparation for the next forming. After being cut to a fixed length, the final product 5 is separated from the material belt and is pushed forward by the discharge end conveyor belt. After being limited and guided by the product limit block 6, it is discharged and enters the next processing cycle.

[0035] In the above working method, the upper mold unit and the lower mold unit ensure mold closing accuracy through the precise cooperation of the guide post 22 and the guide sleeve 21; the buffer component absorbs the impact during each mold closing, protecting the mold and the workpiece; the demolding component automatically ejects the workpiece after each mold opening, without manual intervention. The entire process is carried out continuously in a cycle, realizing efficient, stable, and high-precision automated production of radiator panels.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An automatic stamping mold for a radiator panel, characterized in that, include: The upper mold unit is used to connect to an external hydraulic press and perform up-and-down reciprocating motion; The lower mold unit is fixedly installed on the equipment workbench and cooperates with the upper mold unit. Positioning components, distributed on the upper mold unit and the lower mold unit, are used to guide and limit the material strip and ensure mold closing accuracy; A demolding assembly, mounted on the lower mold unit, is used to eject the strip from the cavity; A buffer assembly, located between the upper mold unit and the lower mold unit, is used to provide buffering and shock absorption during the mold closing process; A cutting integration component is installed on the upper mold unit to achieve fixed-length cutting while the product is being formed; The upper mold unit includes a primary upper forming block (24) and a secondary upper forming block (17), and the lower mold unit includes a primary lower forming block (20) and a secondary lower forming block (18). Along the material strip's travel direction, the primary upper forming block (24) and the primary lower forming block (20) cooperate to form a pre-formed bending profile to achieve material strip pre-forming; the secondary upper forming block (17) and the secondary lower forming block (18) cooperate to form a final shaping profile and a cutting structure to achieve final shaping and fixed-length cutting of the material strip. The demolding assembly includes a demolding template (23) and a lower spring; the demolding template (23) is located above the lower mold base (19) in the lower mold unit and on the discharge side of the one-time molding area; the lower spring is accommodated in the receiving cavity of the lower mold base (19) in the lower mold unit and is used to automatically push out the demolding template (23) after molding, thereby driving the material strip to leave the cavity.

2. The automatic stamping mold for a radiator panel according to claim 1, characterized in that, The upper mold unit also includes an upper support plate (1), an upper mold base (8), an upper template (9), a primary molding upper fixing block (10), and a secondary molding upper fixing block (26); the top of the upper mold base (8) is fixedly connected to the upper support plate (1), and the bottom of the upper mold base (8) is connected to the upper template (9) and the secondary molding upper fixing block (26) respectively; the secondary molding block (17) is fixed on the secondary molding upper fixing block (26); the bottom of the upper template (9) is connected to the primary molding upper fixing block (10), and the primary molding block (24) is fixed on the primary molding upper fixing block (10).

3. The automatic stamping mold for a radiator panel according to claim 2, characterized in that, The lower mold unit also includes a lower support plate (7), a lower mold base (19), a lower material tray (14), and an upper material tray (13); the lower mold base (19) is connected to the lower support plate (7); the primary lower forming block (20) and the secondary lower forming block (18) are both fixed on the lower mold base (19) and are located on both sides of the demolding assembly; at the feeding end of the lower mold base (19), the lower material tray (14) and the upper material tray (13) are arranged sequentially from bottom to top to support the material strip.

4. The automatic stamping mold for a radiator panel according to claim 3, characterized in that, The positioning components include a material limiting block (12), a pressing block (25), and a product limiting block (6); the material limiting block (12) is disposed on both sides of the upper material tray (13) to limit the left and right offset of the material strip (11); the product limiting block (6) is disposed on both sides of the discharge end of the lower mold base (19) to limit the left and right offset of the final product; the pressing block (25) is fixed to the side of the upper template (9) to press the material strip (11) to prevent the material strip (11) from moving.

5. The automatic stamping die for a radiator panel according to claim 4, characterized in that, The positioning assembly also includes guide posts (22) and guide sleeves (21). The guide posts (22) are arranged around the lower mold base (19), and the guide sleeves (21) are arranged around the upper mold base (8). The guide posts (22) and the guide sleeves (21) cooperate to achieve precise mold closing.

6. The automatic stamping mold for a radiator panel according to claim 3, characterized in that, The buffer assembly includes an upper mold buffer (15) fixed on the upper mold base (8) and a lower mold buffer (16) fixed on the lower mold base (19). The upper mold buffer (15) and the lower mold buffer (16) are vertically aligned. A spring is sleeved on the outer periphery of the lower mold buffer (16). When the mold is closed, the lower mold buffer (16) and the spring extend into the interior of the upper mold buffer (15).

7. The automatic stamping die for a radiator panel according to claim 2, characterized in that, The cutting integrated assembly includes a push rod mechanism, the secondary upper forming block (17), and the secondary lower forming block (18). The push rod mechanism contracts in the mold-parting gap at a set time, driving the secondary upper forming block (17) to move to the cutting position, and then cooperates with the top of the secondary lower forming block (18) during the next mold closing to achieve fixed-length cutting.

8. The automatic stamping die for a radiator panel according to claim 7, characterized in that, The push rod mechanism includes a support rod (3) and a hydraulic push rod (4). The hydraulic push rod (4) is fixed on the upper mold base (8) through the support rod (3) and moves synchronously with the upper mold. The push block (2) at the end of the hydraulic push rod (4) is fixed on the secondary forming upper fixing block (26).

9. The automatic stamping mold for a radiator panel according to claim 2, characterized in that, The secondary molding upper fixing block (26) has a sliding hole (27) and a sliding rod is fixed in the sliding hole. The upper part of the sliding rod moves in the groove of the upper mold base (8).

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