Refrigerator middle beam roll pressing and punching integrated processing device

Abstract

The present application relates to sheet metal part processing equipment technical field, and disclose a refrigerator beam roll cutting integrated machining device, including bottom plate, protection cover, in the present application, adopt integrated linear continuous processing structure, only need once clamping, single datum positioning, effectively solve the uneven stress of thin sheet metal plate due to multiple clamping, the positioning deviation and micro deformation problem produced by transfer knock, greatly eliminate the beam cavity size deviation, hole deviation, end face cutting edge skew and other processing defects, improve the refrigerator whole machine assembly quality and use stability. Configuration quick adjustable type guide limiting structure, replace traditional fixed type guide assembly structure, can realize quick alignment and stepless adjustment guide limiting distance according to different width, thickness, model of refrigerator beam sheet metal workpiece, adjustable guide structure can correct the moving direction of the plate during high speed feeding, avoid the quality problems such as forming misplacement, punching position deviation caused by plate lateral deviation.

Description

Technical Field

[0001] This invention relates to the field of sheet metal parts processing equipment, specifically to a refrigerator beam roll forming and punching integrated processing device. Background Technology

[0002] The refrigerator center beam is a core load-bearing and sealing component of built-in, side-by-side, and multi-door refrigerators. Primarily located between the refrigerator and freezer compartments, it serves multiple functions, including structural support, compartment partitioning, door sealing and limiting, and anti-condensation protection. Its processing precision, structural strength, and forming quality directly determine the refrigerator's assembly precision, door sealing performance, and overall stability. Refrigerator center beams are typically made from thin sheet metal, often featuring a bent cavity structure. They require pre-reserved spaces for foaming chambers, anti-condensation tube installation positions, hinge fixing holes, and assembly slots. Extremely high requirements are placed on dimensional accuracy, end-face flatness, and hole consistency, making it one of the key processes in refrigerator sheet metal component processing. Currently, the industry commonly employs a split-step processing technology for refrigerator center beams. The core process involves, in sequence, sheet metal leveling, roll bending for rough forming, manual transfer, punching with independent punching equipment, edge trimming, edge finishing, secondary calibration and shaping, and final transfer and unloading. This entire process relies on multiple independent machines operating in series.

[0003] Traditional processing methods require multiple clamping and positioning operations in actual production. The thin sheet metal of the center beam has low rigidity, and after repeated transfers and clamping, it is prone to positioning misalignment and slight deformation of the sheet metal. This leads to defects such as dimensional deviations in the center beam cavity, hole misalignment, and skewed end faces after roll forming. These defects cause uneven assembly gaps in the center beam, gaps in door closure, and poor sealing, ultimately resulting in refrigerator cold loss, frost condensation in the compartments, and other malfunctions, severely impacting product quality. Furthermore, traditional processing equipment often uses fixed assembly structures for sheet metal guidance and positioning, only suitable for guiding and positioning single-specification center beam sheets. When processing refrigerator center beam sheet metal workpieces of different widths, thicknesses, and models, manual disassembly and replacement of guidance and positioning components are required, along with repeated calibration and adjustment. This cumbersome and time-consuming process makes rapid alignment and adaptive guidance correction impossible. Meanwhile, the fixed guide structure cannot correct the deviation of the sheet material in real time during the feeding process. Thin sheet materials are prone to lateral deviation during high-speed feeding and rolling, which further aggravates the forming deviation and punching position deviation, seriously affecting the workpiece processing accuracy and production continuity. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a refrigerator beam roll forming and punching integrated processing device, which solves the problems of deformation and deviation after multiple clamping operations and the inability to quickly adjust fixed guides in existing roll forming and punching integrated processing devices.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a refrigerator beam roll forming and punching integrated processing device, including a base plate and a protective cover, wherein an adjustment component is provided on the base plate, and the adjustment component is used to control the moving direction of the sheet material;

[0006] The adjustment assembly includes an adjustment plate, a first adjustment slide rail, and a second adjustment slide rail. Two adjustment slots are symmetrically formed on the adjustment plate, and a slide block is slidably connected within each adjustment slot. A drive motor is fixedly connected to the center of the adjustment plate, and a rotating plate is fixedly connected to the output end of the drive motor. Pull plates are rotatably connected to both ends of the rotating plate, and the pull plates are rotatably connected to the slide block. An angle plate is fixedly connected to the end of the slide block away from the base plate, and a guide roller is rotatably connected within the angle plate. Two first threaded seats are symmetrically installed within the first adjustment slide rail. Both the first and second adjustment slide rails are rotatably connected to bidirectional screws, and the first threaded seats are threadedly connected to the bidirectional screws.

[0007] Preferably, a processing plate is fixedly connected to the upper surface of the base plate, the adjusting plate is fixedly connected to the processing plate, and upright plates and support plates are symmetrically installed on the upper surface of the processing plate. A horizontal plate is fixedly connected to the top of the two upright plates.

[0008] Preferably, the support plate has a lifting groove at one end near the upright plate, a lifting seat is slidably connected in the lifting groove, and a lifting frame is fixedly connected between the two lifting seats.

[0009] Preferably, a hydraulic rod is fixedly connected to the horizontal plate, the output end of the hydraulic rod is fixedly connected to the lifting frame, and multiple leveling rollers are uniformly rotatably connected inside the lifting frame.

[0010] Preferably, two side plates are symmetrically installed on the upper surface of the base plate, and multiple rotating shafts are uniformly rotatably connected between the two side plates, and the second adjusting slide rail is fixedly connected to the side plates.

[0011] Preferably, two second threaded seats are symmetrically installed inside the second adjusting slide rail. A wheel seat is fixedly connected to the end of the second threaded seat away from the base plate, and a roller is rotatably connected inside the wheel seat.

[0012] Preferably, a connecting frame is fixedly connected to one end of the first threaded seat near the base plate, and a pressing wheel is rotatably connected to the connecting frame.

[0013] Preferably, the side plate is provided with a plurality of movable slots, a movable seat is slidably connected in the movable slot, a threaded rod is rotatably connected in the movable slot, the threaded rod is threadedly connected to the movable seat, and the first adjusting slide rail is fixedly connected to the movable seat.

[0014] Preferably, an upper straightening mold is fixedly connected between the two movable seats, and a lower straightening mold, a fixed plate, and a guide frame are fixedly connected between the two side plates. A hydraulic cylinder is fixedly connected to the fixed plate, and a cutter is fixedly connected to the output end of the hydraulic cylinder.

[0015] Preferably, a synchronous pulley is fixedly connected to one end of the rotating shaft near the protective cover, and a toothed belt is fitted on the outer wall of multiple synchronous pulleys.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This invention employs an integrated linear continuous processing structure, requiring only one clamping and single-reference positioning throughout the entire process. This effectively solves the problems of positioning offset and minor deformation caused by uneven force during multiple clamping and transportation of thin sheet metal. It significantly eliminates processing defects such as dimensional deviations in the center beam cavity, hole offsets, and skewed end faces, thus significantly improving the overall assembly quality and operational stability of the refrigerator. Furthermore, the high integration of leveling and feeding, roll forming, and fixed-length cutting processes eliminates intermediate transfer and waiting stations, resulting in strong production continuity, stable production cycle, significantly improved overall center beam processing efficiency, and reduced production line footprint and equipment investment costs.

[0018] 2. This invention features a rapidly adjustable guide and limiting structure, replacing the traditional fixed guide assembly structure. This allows for rapid alignment and stepless adjustment of the guide and limiting distance for sheet metal workpieces of different widths, thicknesses, and models, eliminating the need for manual disassembly, replacement of guide components, and repeated calibration. This significantly simplifies the machine model changeover and debugging process, shortens changeover and debugging time, reduces manual debugging costs and operational difficulty, and effectively improves the equipment's flexible production adaptability. The adjustable guide structure can correct the sheet metal's movement direction during high-speed feeding, avoiding quality problems such as forming misalignment and punching position deviation caused by lateral sheet metal offset. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a refrigerator beam roll forming and punching integrated processing device according to the present invention;

[0020] Figure 2 This is a cross-sectional view of the support plate of the refrigerator beam roll forming and punching integrated processing device of the present invention;

[0021] Figure 3 This is a cross-sectional view of the adjusting plate of the refrigerator beam roll forming and punching integrated processing device of the present invention;

[0022] Figure 4 This is a schematic diagram of the side plate structure of the refrigerator beam roll forming and punching integrated processing device of the present invention;

[0023] Figure 5 This is a cross-sectional view of the first adjusting slide rail of the refrigerator beam roll forming and punching integrated processing device of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the rotating shaft of the refrigerator beam roll forming and punching integrated processing device of the present invention.

[0025] In the diagram: 1. Base plate; 2. Protective cover; 3. Side plate; 4. Upper straightening mold; 5. Support plate; 6. Horizontal plate; 7. Lifting frame; 8. Adjusting plate; 9. Angle plate; 10. Guide roller; 11. Processing plate; 12. Hydraulic rod; 13. Lifting groove; 14. Lifting seat; 15. Toothed belt; 16. Vertical plate; 17. Leveling roller; 18. Adjusting groove; 19. Slide seat; 20. Drive motor; 21. Rotating plate; 22. Pulling plate; 23. Rotating shaft; 24. Moving groove; 25. Threaded rod; 26. Moving seat; 27. First adjusting slide rail; 28. Lower straightening mold; 29. ​​Fixing plate; 30. Guide frame; 31. Second adjusting slide rail; 32. Hydraulic cylinder; 33. Bidirectional screw; 34. First threaded seat; 35. Connecting frame; 36. Extrusion wheel; 37. Wheel seat; 38. Roller; 39. Cutting knife; 40. Synchronous belt pulley; 41. Second threaded seat. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] refer to Figures 1-6 The refrigerator beam roll forming and punching integrated processing device shown includes a base plate 1 and a protective cover 2. An adjustment component is provided on the base plate 1 to control the movement direction of the sheet metal. A specific embodiment is shown below:

[0028] Example 1

[0029] A processing plate 11 is fixedly connected to the upper surface of the base plate 1. An adjusting plate 8 is fixedly connected to the processing plate 11. A vertical plate 16 and a support plate 5 are symmetrically installed on the upper surface of the processing plate 11. A horizontal plate 6 is fixedly connected to the top of the two vertical plates 16. A lifting groove 13 is opened at one end of the support plate 5 near the vertical plate 16. A lifting seat 14 is slidably connected in the lifting groove 13. A lifting frame 7 is fixedly connected between the two lifting seats 14. A hydraulic rod 12 is fixedly connected to the horizontal plate 6. The output end of the hydraulic rod 12 is fixedly connected to the lifting frame 7. Multiple leveling rollers 17 are evenly rotated inside the lifting frame 7.

[0030] Multiple leveling rollers 17 are evenly rotatably connected within the internal cavity of the lifting frame 7. These rollers are horizontally parallel and equidistant, with bearings at both ends allowing for free and flexible rotation. During actual processing, operators can adjust the vertical height of the lifting frame 7 by activating the hydraulic rod 12 according to the thickness specifications of the refrigerator's beam sheet, precisely controlling the distance between the leveling rollers 17 and the processing plate 11 to match the sheet thickness. When the sheet is conveyed below the leveling rollers 17, the multiple rotating rollers 17 roll and flatten the upper surface of the sheet. Combined with the planar support of the processing plate 11, this effectively eliminates warping, wrinkles, unevenness, and other defects generated during sheet production and conveying, ensuring a flat sheet surface. This provides a flat processing substrate for subsequent roll forming and punching processes, guaranteeing processing accuracy.

[0031] Example 2

[0032] Two side plates 3 are symmetrically installed on the upper surface of the base plate 1. Multiple rotating shafts 23 are evenly rotatably connected between the two side plates 3. The second adjusting slide rail 31 is fixedly connected to the side plate 3. Multiple moving grooves 24 are evenly opened on the side plate 3. A moving seat 26 is slidably connected in the moving groove 24. A threaded rod 25 is rotatably connected in the moving groove 24. The threaded rod 25 is threadedly connected to the moving seat 26. The first adjusting slide rail 27 is fixedly connected to the moving seat 26. A synchronous pulley 40 is fixedly connected to one end of the rotating shaft 23 near the protective cover 2. A toothed belt 15 is sleeved on the outer wall of the multiple synchronous pulleys 40.

[0033] Using the side plates 3 as fixed support bases, the threaded rod 25 and the movable seat 26 are driven by the threaded engagement of the threaded rod 25 and the movable seat 26 to move the movable seat 26 up and down along the movable groove 24, thereby realizing the height adjustment of the first adjusting slide rail 27 to adapt to the conveying limit requirements of different specifications of plates. At the same time, relying on the meshing synchronous transmission mechanism of the synchronous pulley 40 and the toothed belt 15, multiple sets of rotating shafts 23 are rotated synchronously and uniformly, providing stable and uniform conveying power for the entire conveying of plates. Combined with the integrated continuous processing architecture of the whole machine, it ensures stable plate conveying rhythm and accurate feeding.

[0034] Example 3

[0035] The adjustment assembly includes an adjustment plate 8, a first adjustment slide rail 27, and a second adjustment slide rail 31. Two adjustment slots 18 are symmetrically opened on the adjustment plate 8. A slide seat 19 is slidably connected in the adjustment slot 18. A drive motor 20 is fixedly connected in the middle of the adjustment plate 8. A rotating plate 21 is fixedly connected to the output end of the drive motor 20. Pull plates 22 are rotatably connected to both ends of the rotating plate 21, and the pull plates 22 are rotatably connected to the slide seat 19. An angle plate 9 is fixedly connected to the end of the slide seat 19 away from the base plate 1. A guide roller 10 is rotatably connected in the angle plate 9.

[0036] The equipment relies on the drive motor 20, rotating plate 21, and pull plate 22 on the adjustment plate 8 to form a crank-connecting rod adjustment mechanism. The rotation of the drive motor 20 can drive the slide seats 19 on both sides and the guide rollers 10 to slide along the adjustment groove 18, realizing the stepless lateral spacing adjustment of the guide rollers 10, replacing the traditional fixed guide structure. It can quickly adapt to different specifications of plates and dynamically correct lateral offset during the high-speed feeding of the plates, ensuring the straight and accurate conveying of the plates, and realizing rapid model changeover and high-precision guide limit.

[0037] Example 4

[0038] Two first threaded seats 34 are symmetrically installed inside the first adjusting slide rail 27. Both the first adjusting slide rail 27 and the second adjusting slide rail 31 are rotatably connected to a bidirectional screw 33. The first threaded seats 34 are threadedly connected to the bidirectional screw 33. Two second threaded seats 41 are symmetrically installed inside the second adjusting slide rail 31. A wheel seat 37 is fixedly connected to the end of the second threaded seat 41 away from the base plate 1. A roller 38 is rotatably connected inside the wheel seat 37. A connecting frame 35 is fixedly connected to the end of the first threaded seat 34 near the base plate 1. An extrusion wheel 36 is rotatably connected to the connecting frame 35. An upper straightening mold 4 is fixedly connected between the two moving seats 26. A lower straightening mold 28, a fixed plate 29, and a guide frame 30 are fixedly connected between the two side plates 3. A hydraulic cylinder 32 is fixedly connected to the fixed plate 29. A cutter 39 is fixedly connected to the output end of the hydraulic cylinder 32.

[0039] Multiple sets of first adjusting slide rails 27 and second adjusting slide rails 31 are installed between the two side plates 3. These multiple sets of first adjusting slide rails 27 and second adjusting slide rails 31 are arranged sequentially along the sheet material conveying direction, and a sheet material extrusion roller is provided between every two adjacent first adjusting slide rails 27. The sheet material is progressively formed through the step-by-step cooperation of multiple sets of roller structures. The internal center positions of the first adjusting slide rails 27 and second adjusting slide rails 31 are connected to a bidirectional screw 33 via a bearing for lateral rotation. The threads at both ends of the bidirectional screw 33 rotate in opposite directions. In this device, the bidirectional screw 33 in the first adjusting slide rail 27 is threadedly engaged with the two first threaded seats 34, and the bidirectional screw 33 in the second adjusting slide rail 31 is threadedly engaged with the two second threaded seats 41. The bidirectional screw 33 is driven to rotate by the rotating motor of the device, thereby driving the two first threaded seats 34 and the two second threaded seats 41 to slide synchronously relative to each other or in opposite directions. The bidirectional screw 33 can operate independently. The movement of the first threaded seats 34 drives the extrusion rollers 36 to move, thereby adjusting the distance between the extrusion rollers 36. The movement of the second threaded seats 41 drives the rollers 38 to move, thereby adjusting the distance between the rollers 38. During operation, the equipment uses multiple sets of sheet metal extrusion rollers and extrusion wheels 36 and rollers 38 to work together and roll the sheet metal in stages. This allows for step-by-step and progressive shaping of the sheet metal during transport, gradually rolling the flat sheet metal into the pre-designed irregular cavity structure of the refrigerator's central beam. This effectively avoids problems such as sheet metal springback, wrinkles, and uneven deformation caused by single-stage high-pressure molding. The progressive rolling molding method significantly improves the forming accuracy and structural regularity of the refrigerator's central beam, ensuring the quality of the sheet metal forming.

[0040] The upper straightening mold 4 and the lower straightening mold 28 are set up facing each other to form a precise straightening cavity for the sheet material. During the conveying process, the sheet material passes through the upper straightening mold 4 and the lower straightening mold 28 to complete the precise shaping and straightening of the sheet material. After the sheet material has undergone leveling, guiding and roller straightening processes, it is conveyed to the designated cutting position. The hydraulic cylinder 32 is activated. The hydraulic cylinder 32 quickly extends and retracts, driving the cutter 39 to move downward at high speed. With the support of the lower fixed plate 29, the shaped refrigerator beam sheet material is precisely punched and cut to complete the fixed length cutting of the sheet material.

[0041] The working principle of this invention is as follows: Based on the width and thickness specifications of the refrigerator beam plate to be processed, the equipment is quickly debugged in sequence: the distance between the first threaded seat 34 and the second threaded seat 41 is adjusted by the bidirectional screw 33 to match the width of the plate; the vertical height of the leveling roller 17 is precisely adjusted by the hydraulic rod 12 to match the thickness of the plate; the stepless spacing adjustment and precise alignment are completed by the drive motor 20 in conjunction with the guide roller 10 to match the current workpiece model, and the machine model changeover debugging is quickly completed. After debugging, the refrigerator beam sheet to be processed is clamped and positioned in one go and fed into the feed end of the equipment. The sheet is first dynamically limited and corrected by the adjustable guide roller 10 above the adjustment plate 8 to prevent the sheet from deviating during high-speed feeding. Then the sheet enters under the leveling roller 17 to complete the flattening operation and eliminate the original warping and wrinkle defects of the sheet. The flattened sheet falls into the conveying surface of the rotating shaft 23 and is conveyed at a uniform and stable speed under the synchronous transmission of the synchronous pulley 40 and the toothed belt 15. It is then subjected to double-sided precise roll forming by the extrusion roller 36 and roller 38, and the upper straightening die 4 and lower straightening die 28 are used to complete the shaping and correction to ensure the forming dimensional accuracy of the beam cavity. Finally, the shaped sheet is precisely conveyed to the cutter 39, and the hydraulic cylinder 32 drives the cutter 39 to complete the precise punching to the specified length.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A refrigerator beam roll forming and punching integrated processing device, comprising a base plate (1) and a protective cover (2), characterized in that: An adjustment component is provided on the base plate (1), which is used to control the direction of movement of the plate. The adjustment assembly includes an adjustment plate (8), a first adjustment slide rail (27), and a second adjustment slide rail (31). Two adjustment slots (18) are symmetrically opened on the adjustment plate (8). A slide seat (19) is slidably connected in the adjustment slot (18). A drive motor (20) is fixedly connected in the middle of the adjustment plate (8). A rotating plate (21) is fixedly connected to the output end of the drive motor (20). Pull plates (22) are rotatably connected to both ends of the rotating plate (21), and the pull plates (22) are rotatably connected to the slide seat (19). An angle plate (9) is fixedly connected to the end of the slide seat (19) away from the bottom plate (1). A guide roller (10) is rotatably connected in the angle plate (9). Two first threaded seats (34) are symmetrically installed in the first adjustment slide rail (27). A bidirectional screw (33) is rotatably connected in both the first adjustment slide rail (27) and the second adjustment slide rail (31). The first threaded seats (34) are threadedly connected to the bidirectional screw (33).

2. The refrigerator beam roll forming and punching integrated processing device according to claim 1, characterized in that: The base plate (1) is fixedly connected to the upper surface of the processing plate (1), the adjustment plate (8) is fixedly connected to the processing plate (11), and the processing plate (16) and support plate (5) are symmetrically installed on the upper surface of the processing plate (11). The top of the two upright plates (16) are fixedly connected to the horizontal plate (6).

3. The refrigerator beam roll forming and punching integrated processing device according to claim 2, characterized in that: The support plate (5) has a lifting groove (13) at one end near the upright plate (16), and a lifting seat (14) is slidably connected in the lifting groove (13). A lifting frame (7) is fixedly connected between the two lifting seats (14).

4. The refrigerator beam roll forming and punching integrated processing device according to claim 3, characterized in that: A hydraulic rod (12) is fixedly connected to the horizontal plate (6). The output end of the hydraulic rod (12) is fixedly connected to the lifting frame (7). Multiple leveling rollers (17) are uniformly rotated inside the lifting frame (7).

5. The refrigerator beam roll forming and punching integrated processing device according to claim 1, characterized in that: Two side plates (3) are symmetrically installed on the upper surface of the base plate (1). Multiple rotating shafts (23) are uniformly connected between the two side plates (3). The second adjusting slide rail (31) is fixedly connected to the side plate (3).

6. The refrigerator beam roll forming and punching integrated processing device according to claim 1, characterized in that: Two second threaded seats (41) are symmetrically installed inside the second adjusting slide rail (31). A wheel seat (37) is fixedly connected to one end of the second threaded seat (41) away from the base plate (1). A roller (38) is rotatably connected inside the wheel seat (37).

7. The refrigerator beam roll forming and punching integrated processing device according to claim 1, characterized in that: The first threaded seat (34) is fixedly connected to a connecting frame (35) at one end near the base plate (1), and a pressing wheel (36) is rotatably connected to the connecting frame (35).

8. The refrigerator beam roll forming and punching integrated processing device according to claim 5, characterized in that: Multiple movable slots (24) are evenly provided on the side plate (3). A movable seat (26) is slidably connected in the movable slot (24). A threaded rod (25) is rotatably connected in the movable slot (24). The threaded rod (25) is threadedly connected to the movable seat (26). The first adjusting slide rail (27) is fixedly connected to the movable seat (26).

9. The refrigerator beam roll forming and punching integrated processing device according to claim 8, characterized in that: An upper straightening mold (4) is fixedly connected between the two movable seats (26), and a lower straightening mold (28), a fixed plate (29), and a guide frame (30) are fixedly connected between the two side plates (3). A hydraulic cylinder (32) is fixedly connected on the fixed plate (29), and a cutter (39) is fixedly connected to the output end of the hydraulic cylinder (32).

10. The refrigerator beam roll forming and punching integrated processing device according to claim 5, characterized in that: The rotating shaft (23) is fixedly connected to a synchronous pulley (40) at one end near the protective cover (2), and a toothed belt (15) is fitted on the outer wall of multiple synchronous pulleys (40).

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