Sheet metal forming stamping device for refrigerator

Abstract

The utility model relates to the technical field of refrigerator manufacturing, in particular to a refrigerator sheet metal forming stamping device which comprises an operation table, an upper supporting frame is fixedly connected to the upper portion of the operation table, and four sets of electric telescopic rods are fixedly connected to the lower portion of the upper supporting frame. The lower sliding plate and the second sliding table are synchronously driven by the transmission chain to horizontally move, and alternate stamping operation of the first lower die and the second lower die is achieved by combining path control of the lower curve sliding groove and the upper smooth sliding groove. When one die is used for punching, the other die can be used for feeding or resetting preparation, so that the downtime is greatly shortened, the continuous circulating production takt is formed, and the machining efficiency is remarkably improved.

Description

Technical Field

[0001] This application relates to the technical field of refrigerator manufacturing, and in particular to a sheet metal forming and stamping device for refrigerators. Background Technology

[0002] Sheet metal for refrigerators is a thin-walled structural component made from metal sheets such as cold-rolled steel, stainless steel, or aluminum alloy through processes such as stamping, bending, and welding. It is mainly used for refrigerator shells, doors, inner liner supports, and functional components. It features high strength, corrosion resistance, and lightweight. The surface can be treated with spraying or film to achieve rust prevention and decorative effects. It is a key basic material for refrigerator structural support, heat dissipation, and appearance shaping.

[0003] Traditional stamping equipment generally adopts a single fixed lower die design. After stamping is completed, the equipment must be completely stopped. Manual unloading, waste cleaning and reloading are required, which forces the production cycle to be interrupted. Frequent shutdowns not only disrupt the continuity of production, but also significantly reduce the actual effective working time of the equipment.

[0004] Therefore, in order to solve the above problems, this application provides a sheet metal forming stamping device for refrigerators. Utility Model Content

[0005] To address the problem of frequent shutdowns for unloading and loading in traditional stamping devices, this application provides a sheet metal forming stamping device for refrigerators.

[0006] This application provides a sheet metal forming and stamping device for refrigerators, including an operating table. An upper support frame is fixedly connected above the operating table, and four sets of electric telescopic rods are fixedly connected below the upper support frame. An upper stamping die is fixedly connected to the movable ends of the four sets of electric telescopic rods. A die moving groove is provided inside the operating table, and upper smooth grooves and lower curved sliding grooves are symmetrically provided on both sides of the die moving groove. Sprocket drive grooves are symmetrically provided inside the operating table on both sides of the die moving groove. Four sets of support sprockets are rotatably connected inside each set of sprocket drive grooves, and a set of drive sprockets is rotatably connected inside each set of sprocket drive grooves. A transmission mechanism is provided outside the four sets of support sprockets and the set of drive sprockets. The system includes a moving chain, drive motors symmetrically fixedly connected to both sides of the operating platform, a lower slide plate inside the mold moving groove, four sets of limiting slide pins fixedly connected above the lower slide plate, a first sliding platform above the lower slide plate, four sets of limiting slide holes adapted to the limiting slide pins below the first sliding platform, first pulleys symmetrically rotatably connected to both sides of the first sliding platform, a first lower mold above the first sliding platform, a second sliding platform inside the mold moving groove, a second lower mold above the second sliding platform, second pulleys symmetrically rotatably connected to both sides of the second sliding platform, and a support top plate fixedly connected to the inner side of the operating platform below the upper stamping mold.

[0007] Preferably, the rotating shafts of both sets of drive motors pass through the operating table to the sprocket transmission groove and are fixedly connected to the central rotating shaft of the corresponding drive sprocket.

[0008] Preferably, the two sets of first pulleys rotate inside the two sets of lower curved slides respectively.

[0009] Preferably, both sides of the lower slide plate and the second sliding platform are fixedly connected to two sets of transmission chains, respectively.

[0010] Preferably, the two sets of second pulleys rotate inside the two sets of upper smooth grooves respectively.

[0011] In summary, this application includes the following beneficial technical effects:

[0012] This invention uses a transmission chain to synchronously drive the lower slide plate and the second sliding table to move horizontally. Combined with the path control of the lower curved slide and the upper smooth slide, it realizes the alternating stamping operation of the first lower die and the second lower die. While one die is stamping, the other die can be loaded or reset, which greatly reduces downtime, forms a continuous cyclic production cycle, and significantly improves processing efficiency. Attached Figure Description

[0013] Figure 1 This is an external structural diagram of a sheet metal forming and stamping device for a refrigerator according to an embodiment of this application;

[0014] Figure 2 This is an internal structural diagram of the sprocket drive groove of a sheet metal forming and stamping device for a refrigerator according to an embodiment of this application;

[0015] Figure 3 This is an internal structural diagram of the supporting top plate in a sheet metal forming and stamping device for a refrigerator according to an embodiment of this application;

[0016] Figure 4 This is an internal structural diagram of the upper smooth groove and the lower curved groove in a sheet metal forming stamping device for refrigerators according to an embodiment of this application;

[0017] Figure 5 This is a schematic diagram of the structure of the first sliding table in a sheet metal forming and stamping device for refrigerators according to an embodiment of this application;

[0018] Figure 6 This is a schematic diagram of the structure of the second sliding table in a sheet metal forming and stamping device for refrigerators according to an embodiment of this application.

[0019] Explanation of reference numerals in the attached drawings: 1. Operating platform; 2. Upper support frame; 3. Electric telescopic rod; 4. Upper stamping die; 5. Die moving groove; 6. Upper smooth groove; 7. Lower curved groove; 8. Sprocket drive groove; 9. Support sprocket; 10. Drive sprocket; 11. Drive chain; 12. Drive motor; 13. Lower sliding plate; 14. Limiting slide post; 15. First sliding table; 16. Limiting slide hole; 17. First pulley; 18. First lower die; 19. Second sliding table; 20. Second lower die; 21. Second pulley; 22. Support top plate. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1 - Figure 6 This application will be described in further detail.

[0021] A sheet metal forming and stamping device for refrigerators, as shown in the reference. Figure 1 - Figure 6The system includes an operating platform 1, an upper support frame 2 fixedly connected above the operating platform 1, four sets of electric telescopic rods 3 fixedly connected below the upper support frame 2, and upper stamping dies 4 fixedly connected to the movable ends of the four sets of electric telescopic rods 3. A die moving groove 5 is provided inside the operating platform 1, and upper smooth grooves 6 and lower curved grooves 7 are symmetrically provided on both sides of the die moving groove 5. Sprocket drive grooves 8 are symmetrically provided on both sides of the die moving groove 5 inside the operating platform 1. Four sets of support sprockets 9 are rotatably connected inside each set of sprocket drive grooves 8, and a set of drive sprockets 10 are rotatably connected inside each set of sprocket drive grooves 8. A set of transmission chains 11 is provided outside the four sets of support sprockets 9 and the set of drive sprockets 10. Drive motors 12 are symmetrically fixedly connected to both sides of the operating platform 1. A lower sliding plate 13 is provided inside the die moving groove 5, and four sets of upper stamping dies 4 are fixedly connected above the lower sliding plate 13. A first sliding platform 15 is provided above the limiting slide column 14 and the lower slide plate 13. Four sets of limiting slide holes 16 adapted to the limiting slide column 14 are provided below the first sliding platform 15. The first pulley 17 is symmetrically rotatably connected to both sides of the first sliding platform 15. A first lower mold 18 is provided above the first sliding platform 15. A second sliding platform 19 is provided inside the mold moving groove 5. A second lower mold 20 is provided above the second sliding platform 19. The second pulley 21 is symmetrically rotatably connected to both sides of the second sliding platform 1. A support top plate 22 is fixedly connected to the inner side of the operating table 1 below the upper stamping mold 4. When the first lower mold 18 or the second lower mold 20 moves to the lower part of the upper stamping mold 4, the support top plate 22 can hold the position of the first lower mold 18 or the second lower mold 20 and provide a certain upward support, making the stamping more stable.

[0022] Specifically, the drive motor 12 drives the transmission chain 11 to circulate through the drive sprocket 10. The straight section of the transmission chain 11 drives the lower slide plate 13 and the second sliding table 19 to move along the mold moving groove 5. The first sliding table 15 achieves lifting and lowering movement by rolling the first pulley 17 in the lower curved slide groove 7. When the first lower mold 18 moves to the stamping station, the contour of the lower curved slide groove 7 forces the first sliding table 15 to rise, so that the first lower mold 18 contacts the support top plate 22 to form rigid support. The second sliding table 19 maintains horizontal movement in the upper smooth groove 6 through the second pulley 21. When the electric telescopic rod 3 drives the upper stamping mold 4 to press down, the contact surface between the support top plate 22 and the lower mold provides reverse support force to ensure the stability of the stamping process. The first lower mold 18 and the second lower mold 20 achieve continuous operation by alternating movement.

[0023] Reference Figure 1 and Figure 5The rotating shafts of both sets of drive motors 12 pass through the operating table 1 to the sprocket transmission groove 8 and are fixedly connected to the central rotating shaft of the corresponding drive sprocket 10. The rotating shaft of the drive motor 12 is directly coaxially connected to the drive sprocket 10. The rotation direction of the drive sprocket 10 is controlled by the forward and reverse rotation of the motor, thereby driving the transmission chain 11 to drive forward or reverse. The four sets of support sprockets 9 in the sprocket transmission groove 8 constitute the support points of the chain transmission path, ensuring that the transmission chain 11 remains taut during movement and avoiding slippage or deviation.

[0024] Specifically, the two sets of first pulleys 17 rotate inside the two sets of lower curved slide grooves 7 respectively. The specific contour design of the lower curved slide groove 7 makes the pulleys roll along the rising section of the slide groove when the first sliding table 15 moves to the stamping station, pushing the first lower mold 18 to rise and fit tightly against the supporting top plate 22; when moving out of the station, the pulleys roll along the falling section to drive the mold to reset. The cooperation between the limiting slide column 14 and the limiting slide hole 16 ensures that no deviation occurs during the lifting process.

[0025] Reference Figure 3 and Figure 6 The lower slide plate 13 and the second sliding table 19 are fixedly connected to two sets of transmission chains 11 on both sides. The lower slide plate 13 and the second sliding table 19 are fixed to the straight section of the transmission chain 11 through rigid connecting parts. When the drive sprocket 10 drives the transmission chain 11 to move, the lower slide plate 13 and the second sliding table 19 move horizontally synchronously. The lower slide plate 13 is responsible for supporting the lifting mechanism of the first sliding table 15, while the second sliding table 19 directly drives the second lower mold 20 to move horizontally. The two alternately enter the stamping station through chain transmission to form a continuous stamping cycle.

[0026] Specifically, the two sets of second pulleys 21 rotate inside the two sets of upper smooth grooves 6 respectively. The second pulleys 21 only roll horizontally in the upper smooth grooves 6 to ensure that the second sliding table 19 and the second lower mold 20 remain horizontal during the movement. They are also supported by the support plate 22 to prevent the mold from shifting laterally during stamping.

[0027] The implementation principle of the sheet metal forming and stamping device for refrigerators according to this application embodiment is as follows: When forming and stamping sheet metal for refrigerators, the drive motor 12 is preferably of type HBS57, and the electric telescopic rod 3 is preferably of type LX600. Both the drive motor 12 and the electric telescopic rod 3 are electrically connected to an external power source through a switch. The drive motor 12 is started by the switch, and the drive motor 12 rotates back and forth. Its rotating shaft drives the drive sprockets 10 on both sides to rotate. The drive sprockets 10 pull the four sets of support sprockets 9 in the sprocket transmission groove 8 to rotate synchronously through the transmission chain 11. The straight section of the transmission chain 11 is in the sprocket transmission groove 8. The sliding plate 13 and the second sliding table 19, which are fixedly connected to it, form a stable horizontal movement trajectory, driving the lower sliding plate 13 and the second sliding table 19 to move back and forth horizontally along the mold moving groove 5. When the lower sliding plate 13 moves, the four sets of limiting sliding pins 14 at its top cooperate with the limiting sliding holes 16 of the first sliding table 15 to limit the horizontal displacement of the first sliding table 15. At the same time, the first pulleys 17 on both sides of the first sliding table 15 roll along the lower curved slide groove 7. When the lower sliding plate 13 drives the first sliding table 15 to move directly below the upper stamping mold 4, the rising section contour of the lower curved slide groove 7 forces the first pulleys 17 to rise, pushing the first sliding table 15 and the first lower mold. The first lower die 18 moves upward, making it fit tightly against the supporting top plate 22 to form a rigid support. At this time, after the first lower die 18 and the supporting top plate 22 are positioned, the four sets of electric telescopic rods 3 are controlled by a switch to synchronously drive the upper stamping die 4 downward to stamp the sheet metal part placed on the first lower die 18. The supporting top plate 22 counteracts the stamping pressure through reverse support force, preventing the die from deformation or displacement due to force, and ensuring the stability of the stamping process. During the stamping process, the second sliding table 19 moves horizontally along the upper smooth groove 6 through the second pulley 21, and the second lower die 20 always remains in a horizontal state. When the lower die 18 completes the stamping and moves out of the station with the lower slide plate 13, the second sliding table 19 enters the stamping station under the drive of the transmission chain 11. The second lower die 20 is also positioned by the support plate 22 to achieve continuous stamping operation. When the first sliding table 15 moves out of the station, its first pulley 17 rolls along the descending section of the lower curved slide groove 7, driving the first lower die 18 to reset to the initial height, ready for the next feeding. At the same time, after the second lower die 20 completes the stamping, it moves out of the station with the second sliding table 19, and the first lower die 18 enters the station again. The two dies achieve continuous cyclic production by moving alternately.

[0028] The foregoing description of an exemplary embodiment of a sheet metal forming and stamping apparatus for refrigerators provided by this disclosure refers to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A sheet metal forming and stamping device for refrigerators, comprising an operating table (1), characterized in that: An upper support frame (2) is fixedly connected above the operating platform (1). Four sets of electric telescopic rods (3) are fixedly connected below the upper support frame (2). The movable ends of the four sets of electric telescopic rods (3) are fixedly connected to an upper stamping die (4). A die moving groove (5) is opened on the inner side of the operating platform (1). An upper smooth groove (6) and a lower curved groove (7) are symmetrically opened on both sides of the die moving groove (5). A sprocket drive groove (8) is symmetrically opened on both sides of the die moving groove (5) inside the operating platform (1). Four sets of support sprockets (9) are rotatably connected inside each set of sprocket drive grooves (8). A set of drive sprockets (10) is rotatably connected inside each set of sprocket drive grooves (8). A set of transmission chains (11) is set on the outer side of the four sets of support sprockets (9) and the set of drive sprockets (10). A drive electric motor is symmetrically fixedly connected on both sides of the operating platform (1). The machine (12) has a lower slide plate (13) inside the mold moving groove (5), four sets of limiting slide columns (14) are fixedly connected above the lower slide plate (13), a first sliding table (15) is provided above the lower slide plate (13), four sets of limiting slide holes (16) adapted to the limiting slide columns (14) are opened below the first sliding table (15), a first pulley (17) is symmetrically rotatably connected on both sides of the first sliding table (15), a first lower mold (18) is provided above the first sliding table (15), a second sliding table (19) is provided inside the mold moving groove (5), a second lower mold (20) is provided above the second sliding table (19), a second pulley (21) is symmetrically rotatably connected on both sides of the second sliding table (19), and a support top plate (22) is fixedly connected inside the operating table (1) below the upper stamping mold (4).

2. The sheet metal forming and stamping device for refrigerators according to claim 1, characterized in that: The rotating shafts of both sets of drive motors (12) pass through the operating table (1) to the sprocket transmission groove (8) and are fixedly connected to the central rotating shaft of the corresponding drive sprocket (10).

3. The sheet metal forming and stamping device for refrigerators according to claim 1, characterized in that: The two sets of first pulleys (17) rotate inside the two sets of lower curved slides (7).

4. The sheet metal forming and stamping device for refrigerators according to claim 1, characterized in that: Both sides of the lower slide plate (13) and the second sliding platform (19) are fixedly connected to two sets of transmission chains (11).

5. The sheet metal forming and stamping device for refrigerators according to claim 1, characterized in that: The two sets of second pulleys (21) rotate inside the two sets of upper smooth grooves (6).

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