A raw material feeding device for forging a radiator fin

Abstract

The application discloses a raw material feeding device for forging and pressing radiator sheets, which comprises a rack, a feeding unit and a straightening feeding unit arranged in sequence along a raw material conveying direction on the rack; the feeding unit comprises a coiled material rack rotatably installed at one end of the rack and used for supporting and placing a raw material coil; and the straightening feeding unit comprises at least one group of compression roller groups; the raw material feeding device is high-integrated with the feeding unit, the straightening feeding unit and a driving system on the rack, a single driving motor is matched with a chain wheel and chain system, rigid mechanical synchronization of feeding (coil rack rotation) and feeding (driven compression roller traction) is realized, and the problem of raw material tension fluctuation caused by speed mismatch of multiple independent driving units is eliminated. The raw material is always in a constant optimal tension state during the conveying process, the phenomena of elongation, deformation of aluminum material due to over-pulling, and stacking and wrinkling of the raw material due to relaxation are effectively avoided, and high-quality flat raw material is provided for subsequent forging and pressing forming.

Description

Technical Field

[0001] This application relates to the field of heat dissipation technology, specifically to a raw material feeding device for forged heat sink fins. Background Technology

[0002] As a key thermal management component, radiators are widely used in automobiles, electronic devices, power systems, and other fields. Among them, metal radiator fins (usually made of aluminum or copper) are often formed by forging due to their excellent thermal conductivity, in order to obtain products with complex fin structures, high density, and good mechanical strength.

[0003] In the forging process, raw materials are typically supplied in coil form to improve material utilization and production efficiency. This necessitates a stable and reliable unloading, straightening, and feeding device to continuously, smoothly, and precisely feed the coil into the forging die. However, existing production lines often arrange the unloading machine, straightening machine, and feeding machine in series as independent equipment units. This not only occupies a large area but also requires independent drives and controls for each unit. Even with electronic synchronization, it is difficult to completely eliminate minute speed differences. These speed differences cause the raw material to experience unstable tension between units: excessive tension can cause stretching deformation or even breakage of soft aluminum or copper coils; insufficient tension can lead to material accumulation and wrinkling, severely affecting feeding accuracy and product forming quality.

[0004] Secondly, the existing roller gap adjustment mechanism is rather rudimentary, either lacking a secure lock that is prone to loosening during vibration, or lacking a buffer mechanism. When the raw material has uneven thickness or joints, it is easy to cause jamming or indentation, which not only damages the roller surface but also scratches the surface of the raw material. Poor straightening effect can cause raw material with internal stress or slight bending to enter the die, resulting in poor flatness of the forged heat sink and affecting its contact efficiency with the heat source. Summary of the Invention

[0005] The technical problem to be solved by this application is to overcome the existing defects and provide a raw material feeding device for forged heat sink fins, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a raw material feeding device for forging radiator fins, comprising a frame, wherein a feeding unit and a straightening feeding unit are sequentially arranged on the frame along the raw material conveying direction;

[0007] The feeding unit includes a roll frame rotatably mounted at one end of the frame for holding raw material rolls;

[0008] The straightening and feeding unit includes at least one set of pressure rollers. The pressure rollers include an upper pressure roller and a lower pressure roller arranged opposite to each other. The upper pressure roller is mounted on an upper clamp that can be adjusted up and down, and the lower pressure roller is mounted on a rotating roller support frame fixed on the machine frame. A locking shaft is provided between the upper clamp and the rotating roller support frame for adjusting and locking the distance between the upper and lower pressure rollers.

[0009] It also includes a drive system, which includes a drive motor mounted on the frame, the output end of which is connected to a drive sprocket; a first sprocket is mounted on the shaft of the roll frame, and a second sprocket is mounted on the shaft end of the lower pressure roller in the pressure roller group, which serves as the drive roller; the drive sprocket, the first sprocket, and the second sprocket are connected by a chain to form a synchronous transmission.

[0010] As a preferred technical solution of this application, the feeding unit further includes two symmetrically arranged reel supports on the frame, the top of the reel support is provided with an installation groove, and the two ends of the rotating shaft of the reel are supported in the installation groove.

[0011] As a preferred technical solution of this application, the locking shaft includes a long threaded shaft and a spring. The long threaded shaft passes through the upper clamp from top to bottom and is threadedly connected to the roller support frame. The spring is sleeved on the long threaded shaft and pressed between the upper clamp and the shaft end component of the long threaded shaft.

[0012] As a preferred technical solution of this application, the pressure roller group is configured as two groups, arranged along the material conveying direction, wherein the group closer to the feeding unit is the driven pressure roller group, and the other group is the active pressure roller group, and only the lower pressure roller shaft end of the active pressure roller group is provided with the second sprocket.

[0013] As a preferred technical solution of this application, a pad is provided on the frame below the roller support frame, and the roller support frame is fixedly installed on the pad by fasteners.

[0014] As a preferred technical solution of this application, the bottom of the frame is provided with a mounting base, and the mounting base is provided with a tensioning mechanism for tensioning the transmission material.

[0015] As a preferred technical solution of this application, the tensioning mechanism includes an adjusting shaft, a tensioning shaft, and a guide plate disposed on the mounting base. The tensioning shaft is disposed in the guide groove on the guide plate. The adjusting shaft is threadedly connected to a positioning plate on one side of the mounting base. The end of the adjusting shaft is provided with a movable rotating seat, which is connected to the end of the tensioning shaft that passes through the guide plate.

[0016] As a preferred technical solution of this application, the surfaces of the upper and lower pressure rollers are covered with a coating or covering layer to increase friction.

[0017] Compared with existing technologies, the advantages of this application are as follows: By highly integrating the feeding unit, straightening and feeding unit, and drive system onto a single frame, and employing a single drive motor in conjunction with a sprocket and chain system, rigid mechanical synchronization of feeding (rotation of the coil frame) and delivery (traction by the active pressure roller) is achieved. This eliminates the problem of raw material tension fluctuations caused by speed mismatches among multiple independent drive units. The raw material remains in a constant optimal tension state throughout the conveying process, effectively preventing the aluminum material from elongating or deforming due to overstretching, or from piling up or wrinkling due to slack, thus providing high-quality, flat raw material for subsequent forging and forming.

[0018] The straightening and feeding unit uses a spring-loaded locking shaft to adjust the gap between the pressure rollers. This achieves precise and reliable locking of the gap, with the built-in spring playing a crucial buffering role. When the raw material has slight thickness variations or joints, the spring allows the upper pressure roller to adaptively lift slightly, preventing hard jamming or damage to the material surface. Combined with a two-stage straightening strategy (the driven group provides initial guidance, while the active group performs fine straightening and feeding), the internal stress and bending deformation of the coil material are effectively and gradually eliminated, ensuring that the raw material entering the die has extremely high flatness, thereby directly improving the forming quality and product qualification rate of the forged radiator fins. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this application;

[0020] Figure 2 This is the main view of this application;

[0021] Figure 3 This is the right view of this application;

[0022] Figure 4 This is a schematic diagram of the roller frame support structure.

[0023] In the diagram: 1. Roller support; 2. Roller frame; 3. Locking shaft; 4. Upper clamping frame; 5. Drive motor; 6. Drive sprocket; 7. Support plate; 8. Frame; 9. First sprocket; 10. Mounting base; 11. Upper pressure roller; 12. Lower pressure roller; 13. Rotary roller support frame; 14. Second sprocket. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application (for ease of description and understanding, hereinafter referred to as...), Figure 2 (The above is described above). All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0025] Please see Figure 1-4 This application provides a technical solution: a raw material feeding device for the production of forged radiator fins, which realizes continuous and stable conveying of coil raw materials through integrated feeding, straightening and conveying functions, effectively improving production efficiency and forming quality.

[0026] The feeding device includes a frame 8, on which a feeding unit and a straightening and feeding unit are sequentially arranged along the raw material conveying direction. The raw material coil is first unfurled by the feeding unit, then flattened and straightened by the straightening and feeding unit, and finally fed at a uniform speed into the subsequent forging die. The entire process is synchronously controlled by a drive system to ensure that the feeding speed matches the feeding speed, thus avoiding material accumulation or tensile deformation.

[0027] The feeding unit includes a roll material frame 2 rotatably mounted at one end of the frame 8 for holding raw material rolls. The two ends of the rotating shaft of the roll material frame 2 are supported by two symmetrically arranged roll frame supports 1 on the frame 8. The top of the roll frame support 1 is provided with a mounting groove, and the two ends of the rotating shaft of the roll material frame 2 are embedded in the mounting groove to achieve quick installation and disassembly.

[0028] The mounting slot facilitates easy loading and unloading of the roll material and provides stable support, making it suitable for roll materials of different widths. The roll material frame 2 is rotatable and, in conjunction with tension control, reduces the shaking or deviation of the raw material during the unloading process.

[0029] The straightening and feeding unit includes at least one set of pressure rollers, each set consisting of an upper pressure roller 11 and a lower pressure roller 12 arranged opposite to each other. The upper pressure roller 11 is mounted on an adjustable upper clamping frame 4, while the lower pressure roller 12 is fixed to a rotating roller support frame 13. The rotating roller support frame 13 is mounted on a pad of the frame 8 with fasteners to enhance overall rigidity. A locking shaft 3 is provided between the upper clamping frame 4 and the rotating roller support frame 13. The locking shaft 3 includes a long threaded shaft and a spring. The long threaded shaft passes through the upper clamping frame 4 from top to bottom and is threadedly connected to the rotating roller support frame 13. The spring is sleeved on the long threaded shaft and pressed between the upper clamping frame 4 and the shaft end component. The distance between the upper and lower pressure rollers can be adjusted by rotating the long threaded shaft, and the spring provides buffering pressure to accommodate raw materials of different thicknesses.

[0030] The above structure allows for flexible adjustment and reliable locking, effectively eliminating bending stress in the raw materials and improving the straightening effect.

[0031] The drive system includes a drive motor 5 mounted on a frame 8. Specifically, a support plate 7 is mounted on the frame 8, and threaded holes are provided on the support plate 7 for mounting the drive motor 5. The drive motor 5 is fixedly mounted on the support plate 7 using fasteners. The output end of the drive motor 5 is connected to a drive sprocket 6. A first sprocket 9 is mounted on the shaft of the coil frame 2, and a second sprocket 14 is mounted on the shaft end of the lower pressure roller 12, which serves as the drive roller in the pressure roller group. The drive sprocket 6, the first sprocket 9, and the second sprocket 14 are connected by a chain to achieve synchronous transmission among the three. This ensures strict synchronization between the unloading and feeding speeds, preventing excessive tension or slack in the material due to speed mismatch. It is particularly suitable for heat sink coils made of easily deformable materials such as aluminum and copper.

[0032] To further improve straightening accuracy, in this embodiment, the pressure roller group is configured as two groups, arranged along the material conveying direction. The group closer to the feeding unit is the driven pressure roller group, which mainly plays a preliminary guiding and pre-straightening role; the other group is the active pressure roller group, with a second sprocket 14 installed at the shaft end of the lower pressure roller 12, which is directly driven by the drive system and undertakes the feeding function. Staged straightening reduces the load on a single group of pressure rollers, resulting in smoother feeding and higher flatness of the finished sheet.

[0033] A mounting base 10 is provided at the bottom of the frame 8, and a tensioning mechanism is configured on the mounting base 10 for tensioning the material during conveying. The tensioning mechanism includes an adjusting shaft, a tensioning shaft component, and a guide groove plate. The tensioning shaft component is embedded in the guide groove of the guide groove plate, and the adjusting shaft is threaded to a positioning plate on the side of the mounting base 10. By rotating the adjusting shaft, the tensioning shaft component can be pushed to move along the guide groove, thereby adjusting the tension of the roll material.

[0034] The tension can be precisely adjusted to prevent material slippage or wrinkling, making it especially suitable for long-distance feeding operations.

[0035] The surfaces of the upper pressure roller 11 and the lower pressure roller 12 are coated or covered with a layer of polyurethane or hard alloy to increase friction. This improves the gripping force of the rollers on the raw material, prevents slippage during feeding, and reduces scratches on the material surface caused by the pressure rollers, thus ensuring the surface quality of the heat sink.

[0036] In use: Use an overhead crane or forklift to lift the raw material roll to the side of the device. Pass the swivel of the roll holder 2 through the center hole of the roll, and then securely place both ends of the swivel into the mounting slots at the top of the roll holder support 1. Ensure that the roll rotates freely and without jamming on the roll holder 2.

[0037] Manually pull out the head of the roll material and let it pass through the two sets of pressure rollers in sequence. Pass the head of the roll material from below between the lower pressure roller 12 and the upper pressure roller 11 of the first driven set, and then guide it into the gap between the pressure rollers of the second active set.

[0038] Adjust the gap between the two sets of pressure rollers according to the actual thickness of the raw material. Rotate the long threaded shaft of the locking shaft 3 to lower the upper pressure roller 11, driven by the upper clamp 4, until the gap between it and the lower pressure roller 12 is slightly less than the thickness of the raw material. During adjustment, manually rotate the pressure rollers until the raw material can be compressed and pulled smoothly without significant resistance. After adjustment, be sure to tighten the locking nut on the long threaded shaft. Perform initial straightening first, then precise feeding. That is, the gap of the first set of pressure rollers can be slightly loose, mainly for guidance; the gap of the second set of pressure rollers needs to be precisely adjusted to ensure sufficient straightening force and feeding friction.

[0039] The drive motor 5 is started to operate the active pressure roller group to pull the raw material, and the roll frame 2 feeds the material synchronously. At this time, the active sprocket 6, the first sprocket 9 and the second sprocket 14 are synchronously driven, thereby realizing the feeding of the roll material.

[0040] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A raw material feeding device for forged radiator fins, comprising a frame (8), characterized in that: The frame (8) is provided with a feeding unit and a straightening feeding unit in sequence along the raw material conveying direction; The feeding unit includes a roll frame (2) rotatably mounted on one end of the frame (8) for holding raw material rolls; The straightening and feeding unit includes at least one set of pressure rollers. The pressure rollers include an upper pressure roller (11) and a lower pressure roller (12) arranged opposite to each other. The upper pressure roller (11) is mounted on an upper clamping frame (4) that can be adjusted up and down. The lower pressure roller (12) is mounted on a rotating roller support frame (13) fixed on the frame (8). A locking shaft (3) for adjusting and locking the distance between the upper clamping frame (4) and the rotating roller support frame (13) is provided between the upper clamping frame (4) and the rotating roller support frame (13). It also includes a drive system, which includes a drive motor (5) mounted on the frame (8), and the output end of the drive motor (5) is connected to a drive sprocket (6); a first sprocket (9) is mounted on the shaft of the roll frame (2), and a second sprocket (14) is mounted on the shaft end of the lower pressure roller (12) in the pressure roller group, which serves as the drive roller; the drive sprocket (6), the first sprocket (9) and the second sprocket (14) are connected by a chain to form a synchronous transmission.

2. The raw material feeding device for forged radiator fins according to claim 1, characterized in that: The feeding unit also includes two symmetrically arranged reel support (1) on the frame (8). The top of the reel support (1) is provided with an installation groove, and the two ends of the rotating shaft of the reel frame (2) are supported in the installation groove.

3. The raw material feeding device for a forged radiator fin as described in claim 1, characterized in that: The locking shaft (3) includes a long threaded shaft and a spring. The long threaded shaft passes through the upper clamp (4) from top to bottom and is threadedly connected to the roller support frame (13). The spring is sleeved on the long threaded shaft and pressed between the upper clamp (4) and the shaft end component of the long threaded shaft.

4. The raw material feeding device for forged radiator fins according to claim 1, characterized in that: The pressure roller group is configured as two groups, arranged along the material conveying direction. The group closer to the feeding unit is the driven pressure roller group, and the other group is the active pressure roller group. Only the lower pressure roller (12) shaft end of the active pressure roller group is provided with the second sprocket (14).

5. The raw material feeding device for forged radiator fins according to claim 1, characterized in that: A pad is provided on the frame (8) below the roller support frame (13), and the roller support frame (13) is fixedly installed on the pad by fasteners.

6. The raw material feeding device for forged radiator fins according to claim 1, characterized in that: The bottom of the frame (8) is provided with a mounting base (10), and the mounting base (10) is provided with a tensioning mechanism for tensioning the transmission material.

7. The raw material feeding device for forged radiator fins according to claim 6, characterized in that: The tensioning mechanism includes an adjusting shaft, a tensioning shaft, and a guide plate disposed on the mounting base (10). The tensioning shaft is disposed in the guide groove on the guide plate. The adjusting shaft is threadedly connected to a positioning plate on one side of the mounting base (10). The end of the adjusting shaft is provided with a movable rotating seat, which is connected to the end of the tensioning shaft that passes through the guide plate.

8. The raw material feeding device for a forged radiator fin according to claim 1, characterized in that: The surfaces of the upper pressure roller (11) and the lower pressure roller (12) are covered with a coating or covering layer to increase friction.

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