A sheet presser for processing radiator fins

Abstract

The utility model discloses a tablet press for heat dissipation fin of radiator processing relates to tablet press technical field, the tablet press for heat dissipation fin of radiator processing, including work table, the spacing component includes two guide frames, and the surface of four movable blocks all has the connecting plate fixedly connected through bolt, and the surface of four connecting plates all is provided with a plurality of thread grooves, and the upper end of work table is provided with two first limit blocks, and the upper end of work table is provided with two second limit blocks, the surface of two first limit blocks and two second limit blocks also is provided with thread groove, and the inside of four connecting plates all has the fixed bolt of screwing, through the setting of " connecting plate, first limit block, second limit block", can adjust the positioning range according to the flexible heat dissipation fin raw material width, simultaneously, and the connecting plate is detachably connected with the limit block through fixed bolt and thread groove, can replace the first limit block or second limit block of different specifications, guarantee the size consistency and processing accuracy of heat dissipation fin.

Description

Technical Field

[0001] This utility model relates to the field of tablet press technology, and in particular to a tablet press for processing heat sink fins. Background Technology

[0002] Finned radiators are one of the most widely used heat exchange devices in gas-liquid heat exchangers. They enhance heat transfer by adding fins to ordinary base tubes. In terms of thermal performance, a higher heat transfer coefficient (K value) indicates better heat dissipation. Methods to increase the heat dissipation of radiators and increase the heat transfer coefficient of finned radiators include increasing the outer wall heat dissipation area, increasing the airflow velocity around the finned radiator, and increasing the outward radiation intensity of the radiator. Chinese utility model patent, authorized announcement number "CN221454003U", discloses a finning press for heat sink processing, including a base box with casters installed at the four corners of the bottom. A processing chamber is fixed to the upper side of the base box, with openings on both the front and rear sides of the processing chamber. Transmission components are installed within each opening, and a processing table is fixed to the middle of the bottom wall of the processing chamber.

[0003] In the aforementioned patent, the cylinder pushes the upper roller to press against the aluminum plate, and the drive motor drives the lower roller to rotate. The lower roller can intermittently transport the aluminum plate forward by friction. During the transmission gap of the aluminum plate, the second hydraulic rod pushes the upper template to insert into the upper groove, which can punch part of the aluminum plate to form heat sinks. Afterwards, the first hydraulic rod pushes the lower template to lift the heat sink, so that the heat sink is once again in the same plane as the aluminum plate. When the aluminum plate is transported forward again, the heat sink will fall from the waste trough into the guide frame and slide out. However, the above technical solution still has certain defects. It is not convenient to limit the heat sinks of different widths, which causes the heat sink to shift, resulting in changes in the processing area, affecting the progress of the pressing operation, and reducing the processing efficiency. Therefore, this utility model proposes a new solution. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a pressing machine for processing heat sink fins, which can solve the problem that it is inconvenient to limit the heat sink fins of different widths, which leads to the heat sink fins shifting, causing changes in the processing area, affecting the progress of pressing operations, and reducing processing efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressing machine for processing radiator fins, including a worktable;

[0006] The limiting component is set at the upper end of the worktable. The limiting component includes two guide frames, both of which are fixedly connected to the upper end of the worktable. The front end of each of the two guide frames is fixedly connected to a first drive motor. The output end of each of the two first drive motors is fixedly connected to a threaded rod. Two movable blocks are threadedly sleeved on the surface of each of the two threaded rods.

[0007] Each of the four movable blocks has a connecting plate fixedly connected to its surface by bolts, and each of the four connecting plates has multiple threaded grooves on its surface.

[0008] The upper end of the worktable is equipped with two first limit blocks and two second limit blocks.

[0009] The surfaces of the two first limit blocks and the two second limit blocks are also provided with threaded grooves. The interiors of the four connecting plates are all threaded with fixing bolts. The two first limit blocks and the two second limit blocks are fixed to the corresponding connecting plates by fixing bolts.

[0010] Preferably, both first limiting blocks are C-shaped and both second limiting blocks are T-shaped.

[0011] Preferably, a fixed bracket is fixedly connected to the upper end of the workbench, a groove is provided on the surface of the fixed bracket, a pressure roller connecting block is slidably connected inside the groove, a guide rod is fixedly connected to the upper end of the pressure roller connecting block, and a return spring is sleeved on the surface of the guide rod.

[0012] Preferably, there are two sets of each of the fixed bracket, slide, guide frame, guide rod and return spring;

[0013] The two fixed supports are rotatably connected to the opposite surfaces of a first pressure roller, and the two pressure roller connecting blocks are rotatably connected to the opposite surfaces of a second pressure roller.

[0014] Preferably, there are two sets of each of the fixed bracket, slide, guide frame, guide rod and return spring;

[0015] The two fixed supports are rotatably connected to the opposite surfaces of a first pressure roller, and the two pressure roller connecting blocks are rotatably connected to the opposite surfaces of a second pressure roller.

[0016] Preferably, a lower mold is fixedly connected to the upper end of the workbench, and multiple pressure grooves are opened on the upper end of the lower mold.

[0017] Preferably, a protective plate is hinged to the left side of the first fixing frame, and a connecting rod is hinged to the left side of the upper mold, with the side of the connecting rod away from the upper mold hinged to the protective plate.

[0018] Preferably, the number of connecting rods and protective plates are both arranged in two sets, symmetrically on the left and right sides of the first fixed frame;

[0019] Both protective panels are curved.

[0020] Preferably, both protective plates are divided into two interlocking arc-shaped segments.

[0021] Preferably, rollers are rotatably connected to the edges of the multiple pressure grooves on the surface of the lower mold.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. This finning press for heat sinks features a "connecting plate, first limiting block, and second limiting block" configuration. This allows for flexible adjustment of the positioning range based on the width of the heat sink fin material. The "C"-shaped first limiting block and the "T"-shaped second limiting block adjust synchronously to enclose and limit the material. Simultaneously, the connecting plate and limiting blocks are detachably connected via fixing bolts and threaded grooves, allowing for the replacement of different specifications of the first or second limiting blocks. This design overcomes the shortcomings of existing equipment, such as difficulty in adapting to materials of different widths and susceptibility to limiting deviations. It ensures that the material remains within the preset processing area during processing, guaranteeing dimensional consistency and processing accuracy of the heat sink fins. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0025] Figure 1 This is a schematic diagram of a pressing machine for processing heat sink fins according to the present invention.

[0026] Figure 2 This is a schematic diagram of the guide frame of this utility model.

[0027] Figure 3 This is a schematic diagram of the first limiting block of this utility model.

[0028] Figure 4 This is a schematic diagram of the second limiting block of this utility model.

[0029] Figure 5 This is a schematic diagram of the first fixing frame of this utility model.

[0030] Figure 6 This is a schematic diagram of the upper mold of this utility model.

[0031] Figure 7 This is a schematic diagram of the lower mold of this utility model;

[0032] Figure 8 This utility model Figure 7 Enlarged diagram of point A in the middle.

[0033] Figure 9 This is a schematic diagram of the protective plate of this utility model.

[0034] Figure 10This is a schematic diagram of the roller of this utility model.

[0035] Reference numerals: 1. Workbench; 2. First fixed frame; 3. Fixed bracket; 4. Guide frame; 5. Slide groove; 6. Pressure roller connecting block; 7. Guide rod; 8. Return spring; 9. First pressure roller; 10. Second pressure roller; 11. First drive motor; 12. Threaded rod; 13. Movable block; 14. Connecting plate; 15. First limit block; 16. Threaded groove; 17. Fixing bolt; 18. Second limit block; 19. Hydraulic rod; 20. Upper mold; 21. Lower mold; 22. Pressure block; 23. Pressure groove; 24. Connecting rod; 25. Protective plate; 26. Roller. Detailed Implementation

[0036] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0037] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0038] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0039] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0040] Please see Figure 1-10This utility model provides a technical solution: a pressing machine for processing heat sink fins, wherein the upper end of the worktable 1 is fixedly connected to two guide frames 4, and the guide frames 4 provide stable support for the first drive motor 11 and the threaded rod 12; the first drive motor 11 is fixed at the front end of the guide frame 4, and its output end is fixedly connected to the threaded rod 12 to ensure that the motor power can be stably transmitted to the threaded rod 12; four movable blocks 13 are respectively threaded onto the surface of the two threaded rods 12, and when the threaded rods 12 rotate, they can drive the movable blocks 13 to move precisely along the axial direction, providing a power basis for adjusting the position of the limit block.

[0041] The surface of the movable block 13 is fixedly connected to the connecting plate 14 by bolts. The bolt connection method facilitates subsequent disassembly and maintenance while ensuring connection strength. The connecting plate 14 is connected to the first limiting block 15 and the second limiting block 18 by fixing bolts 17. All three have matching threaded grooves 16 on their surfaces, and the limiting blocks of different specifications can be replaced according to the width of the heat dissipation fin material. The "C"-shaped first limiting block 15 is adapted to the longitudinal limiting of the material, and the "T"-shaped second limiting block 18 is adapted to the lateral limiting of the material, so as to realize the encirclement and positioning of materials of different sizes.

[0042] The upper end of the workbench 1 is fixedly connected to two sets of fixed supports 3. The surface of the fixed supports 3 is provided with a sliding groove 5. The pressure roller connecting block 6 is slidably connected inside the sliding groove 5 to ensure that the pressure roller connecting block 6 slides stably in the vertical direction. The upper end of the pressure roller connecting block 6 is fixedly connected to the guide rod 7. The surface of the guide rod 7 is sleeved with a return spring 8. One end of the return spring 8 abuts against the fixed support 3 and the other end abuts against the pressure roller connecting block 6, providing downward elastic pressure for the second pressure roller 10. The first pressure roller 9 is rotatably connected to the opposite surfaces of the two fixed supports 3, and the second pressure roller 10 is rotatably connected to the opposite surfaces of the two pressure roller connecting blocks 6. The two pressure rollers cooperate to realize the roller pressing pretreatment of the raw materials.

[0043] The upper end of the workbench 1 is fixedly connected to the first fixed frame 2. The inside of the first fixed frame 2 is fixedly connected to two hydraulic rods 19. The output end of the hydraulic rods 19 is fixedly connected to the upper mold 20, providing stable power for the up and down movement of the upper mold 20. The lower end of the upper mold 20 is fixedly connected to multiple pressure blocks 22. The upper end of the workbench 1 is fixedly connected to the lower mold 21. The upper end of the lower mold 21 has multiple pressure grooves 23 that are adapted to the pressure blocks 22. The pressure blocks 22 and the pressure grooves 23 are embedded one-to-one. The structure of the two can be customized according to the design shape of the heat dissipation fins (such as toothed or corrugated) to ensure that the raw materials can be accurately pressed into shape.

[0044] The first fixed frame 2 is hinged to the protective plate 25 on both sides. The protective plate 25 has an arc structure, which can reduce safety hazards during processing. The upper mold 20 is hinged to the protective plate 25 on both sides through the connecting rod 24. The connecting rod 24 plays a transmission role. When the upper mold 20 is pressed down, the connecting rod 24 pulls the protective plate 25 to rotate around the hinge point, so that the protective plate 25 unfolds and closes the gap between the first fixed frame 2 and the lower mold 21. When the upper mold 20 is reset, the connecting rod 24 pushes the protective plate 25 to rotate in the opposite direction and open, which facilitates the loading and unloading of raw materials or fins.

[0045] The edge of the pressure groove 23 on the surface of the lower mold 21 is rotatably connected to the roller 26. The axis of the roller 26 is parallel to the length direction of the pressure groove 23, and the outer circumferential surface of the roller 26 is slightly higher than the upper end surface of the lower mold 21 (2-3mm higher). When the raw material is conveyed, the roller 26 converts the sliding friction between the raw material and the lower mold 21 into rolling friction, reducing the conveying resistance. During pressing, it can help limit the deviation of the raw material and prevent the edge of the raw material from being scratched and damaged by the edge of the pressure groove 23 when it is taken out.

[0046] Working principle: Before processing, the positioning range needs to be adjusted according to the width of the heat dissipation fin material (such as metal sheet) through the limiting component to ensure that the material does not deviate during processing; start the first drive motor 11 on the two guide frames 4, and the output end of the first drive motor 11 drives the threaded rod 12 to rotate; since the four movable blocks 13 are respectively threaded onto the surface of the two threaded rods 12, when the threaded rod 12 rotates, it will drive the movable blocks 13 to move along the axial direction of the threaded rod 12, and then drive the first limiting block 15 and the second limiting block 18 to move synchronously through the connecting plate 14.

[0047] Based on the width of the raw material, the two "C"-shaped first limiting blocks 15 are adjusted to the longitudinal positioning positions on both sides of the raw material, and the two "T"-shaped second limiting blocks 18 are adjusted to the lateral positioning positions at the front and rear ends of the raw material, forming a closed-loop limiting of the raw material.

[0048] If it is necessary to replace the first limit block 15 or the second limit block 18 of different specifications, the fixing bolts 17 between the connecting plate 14 and the limit block can be unscrewed, and the corresponding threaded grooves 16 can be used for re-fitting and installation to ensure the universality of the limit components.

[0049] After the raw material enters the processing area through the limiting component, it first undergoes a roll pressing pretreatment through the cooperation of the first pressure roller 9 and the second pressure roller 10 to eliminate wrinkles or deformations on the surface of the raw material, laying the foundation for subsequent pressing and forming.

[0050] The two sets of fixed brackets 3 provide support for the first pressure roller 9 and the second pressure roller 10 respectively. The first pressure roller 9 is rotatably connected to the opposite surfaces of the two fixed brackets 3 to keep its position fixed. The second pressure roller 10 is rotatably connected to the opposite surfaces of the two pressure roller connecting blocks 6, while the pressure roller connecting blocks 6 are slidably connected in the groove 5 on the surface of the fixed bracket 3.

[0051] When the raw material enters between the first pressure roller 9 and the second pressure roller 10, the guide rod 7 at the upper end of the pressure roller connecting block 6 slides along the vertical direction of the fixed bracket 3. The return spring 8 on the surface of the guide rod 7 is squeezed and generates a downward elastic force, which drives the second pressure roller 10 to apply pressure to the first pressure roller 9.

[0052] The first pressure roller 9 and the second pressure roller 10 rotate synchronously during the raw material conveying process. The roller pressure is adjusted by the elastic force of the reset spring 8 to flatten the raw material and avoid errors in subsequent fin forming caused by uneven raw material.

[0053] The flattened raw material is conveyed above the lower mold 21, and the fins are pressed and formed by the cooperation of the upper mold 20 and the lower mold 21.

[0054] The two hydraulic rods 19 inside the first fixed frame 2 are activated, and the output end of the hydraulic rods 19 pushes the upper mold 20 to move downward. The multiple pressure blocks 22 at the lower end of the upper mold 20 correspond one-to-one with the multiple pressure grooves 23 at the upper end of the lower mold 21. When the hydraulic rods 19 drive the upper mold 20 to press down to the limit position, the pressure blocks 22 are embedded in the pressure grooves 23.

[0055] The mating structure of the pressing block 22 and the pressing groove 23 is customized according to the design shape of the heat dissipation fins (such as toothed or corrugated). The raw material is pressed into heat dissipation fins that match the shape of the pressing groove 23 by the stable pressure provided by the hydraulic rod 19.

[0056] After pressing is completed, the hydraulic rod 19 drives the upper mold 20 to return to its original position, waiting for the next pressing cycle. At the same time, the formed fins can be removed from the lower mold 21 or transferred through the subsequent conveying structure.

[0057] During the up-and-down movement of the upper mold 20, the linkage structure of the protective plate 25 and the connecting rod 24 will automatically provide protection to prevent the operator from accidentally touching the processing area. The two sets of connecting rods 24 and the protective plate 25 are symmetrically arranged on the left and right sides of the first fixed frame 2. The protective plate 25 is hinged to the first fixed frame 2 and is hinged to the upper mold 20 through the connecting rod 24.

[0058] When the hydraulic rod 19 pushes the upper mold 20 downward, the upper mold 20 pulls the protective plate 25 around the hinge point through the connecting rod 24, so that the arc-shaped protective plate 25 unfolds to both sides of the processing area, closing the gap between the first fixed frame 2 and the lower mold 21.

[0059] When the pressing is completed and the upper mold 20 is reset upward, the connecting rod 24 pushes the protective plate 25 to rotate in the opposite direction, gradually opening the protective area, making it convenient for operators to pick up and put down the fins or replenish raw materials, thus achieving the linkage effect of "automatic protection during processing and automatic opening when picking up materials".

[0060] Furthermore, through the configuration of "connecting plate 14, first limiting block 15, and second limiting block 18", the positioning range can be flexibly adjusted according to the width of the heat dissipation fin material: the "C"-shaped first limiting block 15 and the "T"-shaped second limiting block 18 are adjusted synchronously to form a closed limiting of the material; at the same time, the connecting plate 14 and the limiting block are detachably connected by fixing bolts 17 and threaded grooves 16, and different specifications of the first limiting block 15 or the second limiting block 18 can be replaced; this design solves the defects of existing equipment that "is difficult to adapt to materials of different widths and is prone to limiting deviation", ensuring that the material is always in the preset processing area during the processing, and ensuring the dimensional consistency and processing accuracy of the heat dissipation fins.

[0061] Example 1: Install rollers at the edge of the lower mold groove opening (to address the problem of material conveying jams).

[0062] On the surface of the lower mold 21 at the upper end of the workbench 1, a roller 26 that can rotate freely is installed at the opening edge of each pressure groove 23 by means of a pivot. The axis of the roller 26 is parallel to the length direction of the pressure groove 23, and the outer circumferential surface of the roller 26 is slightly higher than the upper end surface of the lower mold 21 (2-3mm higher).

[0063] This reduces the resistance to raw material transport, minimizes wear on the raw material edges, and further improves the positioning accuracy of the raw material during the pressing process, ensuring the consistency of the processing dimensions of the heat dissipation fins.

[0064] Example 2: Segmented curved protective plate (for adapting to the protection needs of materials with different widths)

[0065] The original symmetrical arc-shaped protective plate 25 on the left and right sides of the first fixed frame 2 is split into two arc-shaped sub-protective plates (still labeled as 25). The joint ends of the two sub-protective plates are respectively provided with protrusion and groove structures to achieve mutual interlocking. An adjustable positioning pin is added at the hinge of the first fixed frame 2, so that the two sub-protective plates can rotate independently around the hinge point, and the overall curvature after interlocking is consistent with the original symmetrical arc-shaped protective plate 25.

[0066] The versatility of the protective components is improved, ensuring both closed protection during the processing of narrow materials and interference-free operation during the processing of wide materials. At the same time, the segmented structure facilitates the individual replacement of damaged sub-protective plates, reducing maintenance costs.

[0067] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A pressing machine for processing radiator fins, characterized in that: Including the workbench (1). The limiting component is set at the upper end of the worktable (1). The limiting component includes two guide frames (4). Both guide frames (4) are fixedly connected to the upper end of the worktable (1). The front end of both guide frames (4) is fixedly connected to a first drive motor (11). The output end of both first drive motors (11) is fixedly connected to a threaded rod (12). The surface of both threaded rods (12) is threaded with two movable blocks (13). The surfaces of the four movable blocks (13) are all fixedly connected to the connecting plates (14) by bolts, and the surfaces of the four connecting plates (14) are provided with multiple threaded grooves (16). Two first limit blocks (15) are provided at the upper end of the workbench (1), and two second limit blocks (18) are provided at the upper end of the workbench (1). The surfaces of the two first limiting blocks (15) and the two second limiting blocks (18) are also provided with threaded grooves (16), and the interiors of the four connecting plates (14) are all threaded with fixing bolts (17). The two first limiting blocks (15) and the two second limiting blocks (18) are fixed to the corresponding connecting plates (14) by fixing bolts (17).

2. The pressing machine for processing radiator fins according to claim 1, characterized in that: Both first limiting blocks (15) are C-shaped, and both second limiting blocks (18) are T-shaped.

3. A pressing machine for processing radiator fins according to claim 1, characterized in that: The upper end of the workbench (1) is fixedly connected to a fixed bracket (3), and a sliding groove (5) is opened on the surface of the fixed bracket (3). A pressure roller connecting block (6) is slidably connected inside the sliding groove (5). A guide rod (7) is fixedly connected to the upper end of the pressure roller connecting block (6), and a return spring (8) is sleeved on the surface of the guide rod (7).

4. A pressing machine for processing radiator fins according to claim 3, characterized in that: The number of the fixed bracket (3), slide (5), guide frame (4), guide rod (7) and reset spring (8) are all two sets; The two fixed supports (3) are rotatably connected to the opposite surfaces of the first pressure roller (9), and the two pressure roller connecting blocks (6) are rotatably connected to the opposite surfaces of the second pressure roller (10).

5. A pressing machine for processing radiator fins according to claim 1, characterized in that: The upper end of the workbench (1) is fixedly connected to a first fixed frame (2), and two hydraulic rods (19) are fixedly connected inside the first fixed frame (2). An upper mold (20) is provided at the upper end of the workbench (1), and the upper mold (20) is fixedly connected to the output ends of the two hydraulic rods (19). Multiple pressure blocks (22) are fixedly connected to the lower end of the upper mold (20).

6. A pressing machine for processing radiator fins according to claim 1, characterized in that: The upper end of the workbench (1) is fixedly connected to a lower mold (21), and the upper end of the lower mold (21) is provided with multiple pressure grooves (23).

7. A pressing machine for processing radiator fins according to claim 5, characterized in that: The first fixing frame (2) has a protective plate (25) hinged to its left side, and the upper mold (20) has a connecting rod (24) hinged to its left side. The side of the connecting rod (24) away from the upper mold (20) is hinged to the protective plate (25).

8. A pressing machine for processing radiator fins according to claim 7, characterized in that: The number of connecting rods (24) and protective plates (25) are both arranged in two sets, symmetrically on the left and right sides of the first fixed frame (2); Both protective plates (25) are arc-shaped.

9. A pressing machine for processing radiator fins according to claim 8, characterized in that: Both of the protective plates (25) are divided into two interlocking arc-shaped segments.

10. A pressing machine for processing radiator fins according to claim 6, characterized in that: Rollers (26) are rotatably connected to the edges of the multiple pressure grooves (23) on the surface of the lower mold (21).

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