Refrigerator door body bending equipment

Abstract

The utility model relates to the technical field of refrigerator processing, and particularly discloses refrigerator door body bending equipment which comprises a bending box, a stamping chamber is arranged in the bending box, a floating table is fixedly arranged at the bottom of the stamping chamber, a stamping part is arranged at the upper end of the floating table, a lifting table is arranged on one side of the stamping part and arranged on the inner side of the stamping chamber in a sliding mode, and a lifting frame is arranged above the lifting table. A second conveying belt is laid in the lifting frame, a plurality of point-shaped protrusions are arranged on the outer side of the second conveying belt, the lifting frame is slidably arranged on the inner side of the stamping chamber, a second lifting device used for adjusting the height of the lifting frame is arranged on the inner side of the stamping chamber, and a first conveying belt is arranged at the bottom of the stamping chamber. In the stamping process, the lifting table ascends, the lifting frame descends, the outer plate is fixed to the center of the stamping part, it is guaranteed that the outer plate cannot shake during stamping, and the stamping stability of the door plate is improved. Before and after stamping, the second conveying belt on the lifting frame can be matched with the first conveying belt to achieve automatic feeding and discharging of the plates, and the bending efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator processing technology, and in particular to a refrigerator door bending device. Background Technology

[0002] The forming process of refrigerator door shells involves multiple bending processes. However, since the required dimensions for each bend are different, different bending dies need to be designed for each bend. The cross-section of refrigerator door shells is usually U-shaped, and they are usually produced by stamping.

[0003] For example, Chinese patent application number CN202322229288.7 discloses a stamping device for processing refrigerator door panels, including a base plate, a lower die fixedly installed on the upper end of the base plate, a mold cavity inside the lower die, a central horizontal groove in the middle of the lower die, and two side plates embedded on both sides of the lower die, with a central horizontal bar fixedly connected between the two side plates. This stamping device uses two hydraulic rods to push the upper die at the bottom downwards, and the upper die, in conjunction with the lower die, forms an integral mold cavity to stamp the door panel material. However, when bending the edge of the refrigerator door panel, due to the stamping position, the other side of the door panel will warp during the stamping process, requiring special fixing by operators, affecting bending efficiency and posing a safety hazard. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a refrigerator door bending device to solve the drawback of existing refrigerator door bending devices where the other side of the door panel warps up during the stamping process, requiring operators to fix it, which affects bending efficiency.

[0005] To achieve the purpose of this utility model, the utility model is achieved through the following technical solution: a refrigerator door bending device, including a bending box, a punching chamber inside the bending box, a floating platform fixedly installed at the bottom of the punching chamber, and a punching part installed at the upper end of the floating platform;

[0006] A lifting platform is provided on one side of the stamping part. The lifting platform is slidably disposed inside the stamping chamber. A first lifting device for adjusting the height of the lifting platform is provided inside the stamping chamber.

[0007] A lifting frame is provided above the lifting platform, and a second conveyor belt is laid inside the lifting frame. Several dot-shaped protrusions are provided on the outside of the second conveyor belt. The lifting frame is slidably installed inside the stamping chamber, and a second lifting device for adjusting the height of the lifting frame is provided inside the stamping chamber.

[0008] The bottom of the stamping chamber is equipped with a first conveyor belt, which is located on the side of the lifting platform away from the floating platform, and one end of the first conveyor belt extends to the bottom of the lifting frame.

[0009] Further improvement lies in that the puncher comprises a punch and a bottom die, the lower end of the punch is matched with the upper end of the bottom die, the punch is fixedly connected with a hydraulic cylinder arranged at the top of the punch chamber, and the bottom die is floatingly arranged at the upper end of the floating table.

[0010] Further improvement lies in that the front and rear sides of the lifting frame are provided with a plurality of second sliding blocks, the second sliding blocks are fixedly connected with the lifting frame, a plurality of second sliding grooves are arranged in the inner side of the punch chamber, and the second sliding blocks are slidingly arranged in the second sliding grooves.

[0011] Further improvement lies in that the front and rear sides of the lifting frame are provided with a plurality of first sliding blocks, the first sliding blocks are fixedly connected with the lifting frame, a plurality of first sliding grooves are arranged in the inner side of the punch chamber, and the first sliding blocks are slidingly arranged in the first sliding grooves.

[0012] Further improvement lies in that the first lifting device comprises a second screw rod arranged in one of the second sliding grooves, the second screw rod is rotationally connected with the second sliding groove, a second motor is arranged at the top of the second sliding groove, the output end of the second motor is fixedly connected with the second screw rod, a second nut seat is arranged on the outer side of the second screw rod and is threadedly connected with the second screw rod, and the second sliding block is arranged on the outer side of the second nut seat and is fixedly connected with the second nut seat.

[0013] Further improvement lies in that the second lifting device comprises a first screw rod arranged in one of the first sliding grooves, the first screw rod is rotationally connected with the first sliding groove, a first motor is arranged at the top of the first sliding groove, the output end of the first motor is fixedly connected with the first screw rod, a first nut seat is arranged on the outer side of the first screw rod and is threadedly connected with the first screw rod, and the first sliding block is arranged on the outer side of the first nut seat and is fixedly connected with the first nut seat.

[0014] Compared with the prior art, the utility model has the advantages of the following:

[0015] In the process of stamping, the lifting table rises, the lifting frame falls, the outer plate is fixed in the middle of the puncher, the outer plate is prevented from shaking during stamping, and the stability of the door plate during stamping is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0017] Figure 1 It is the structure diagram of the bending box outside in the utility model.

[0018] Figure 2It is the structure diagram of the bending box in the utility model.

[0019] Figure 3 It is the structure diagram of the lifting frame in the utility model.

[0020] Figure 4 It is the structure diagram of the lifting platform in the utility model.

[0021] 1, bending box;2, stamping chamber;3, punch;4, floating platform;5, bottom die;6, first conveying belt;7, lifting platform;8, lifting frame;9, first chute;10, second chute;11, first screw;12, second screw;13, first motor;14, second motor;15, first nut seat;16, first sliding block;17, second nut seat;18, second sliding block;19, second conveying belt. DETAILED DESCRIPTION

[0022] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] According to Figure 1 , 2 , 3, 4, the present embodiment proposes a refrigerator door body bending equipment, which comprises a bending box 1, a stamping chamber 2 is arranged in the bending box 1, a floating platform 4 is fixedly arranged at the bottom of the stamping chamber 2, and a stamping part is arranged at the upper end of the floating platform 4.

[0024] The refrigerator outer plate to be bent is placed above the floating platform 4, and the edge of the outer plate is bent by the stamping part.

[0025] One side of the stamping part is provided with a lifting platform 7, the lifting platform 7 is slidingly arranged in the inner side of the stamping chamber 2, and a first lifting device for adjusting the height of the lifting platform 7 is arranged in the inner side of the stamping chamber 2.

[0026] The lifting platform 7 is provided with a lifting frame 8 above, the lifting frame 8 is provided with a second conveying belt 19, a plurality of dot protrusions are arranged on the outer side of the second conveying belt 19, the lifting frame 8 is slidingly arranged in the inner side of the stamping chamber 2, and a second lifting device for adjusting the height of the lifting frame 8 is arranged in the inner side of the stamping chamber 2.

[0027] In the process of stamping, the first lifting device pushes the lifting platform 7 to rise, and the second lifting device pushes the lifting frame 8 to fall, so that the lifting platform 7 cooperates with the lifting frame 8 to fix the outer plate in the middle of the stamping part, so that the outer plate does not shake during stamping, and the stability of the door plate stamping is improved.

[0028] The first conveying belt 6 is arranged on the bottom of the stamping chamber 2, and is arranged on the side of the lifting platform 7 away from the floating platform 4. One end of the first conveying belt 6 extends below the lifting frame 8. The second conveying belt 19 on the lifting frame 8 can cooperate with the first conveying belt 6 to realize automatic feeding and discharging of the plate before and after stamping.

[0029] Regarding the stamping part:

[0030] The stamping part includes a punch 3 and a bottom die 5. The lower end of the punch 3 cooperates with the upper end of the bottom die 5. The punch 3 is fixedly connected with a hydraulic cylinder arranged on the top of the stamping chamber 2. The bottom die 5 is arranged on the upper end of the floating platform 4 in a floating manner. After the outer plate to be bent is placed between the punch 3 and the bottom die 5, the hydraulic cylinder pushes the punch 3 to fall down, so as to stamp and form the edge of the plate. The stamping part bends the plate in a conventional stamping manner, which will not be described in detail here.

[0031] The lifting platform 7 is slidingly arranged on the inner side of the stamping chamber 2. Specifically, the lifting platform 7 is provided with a plurality of second sliding blocks 18 on the front and rear sides thereof. The second sliding blocks 18 are fixedly connected with the lifting platform 7. A plurality of second sliding grooves 10 are arranged on the inner side of the stamping chamber 2. The second sliding blocks 18 are slidingly arranged in the second sliding grooves 10. The second sliding grooves 10 are arranged vertically. When the lifting platform 7 is lifted, the second sliding blocks 18 fixedly connected with the lifting platform 7 slide along the second sliding grooves 10. The second sliding grooves 10 limit the lifting platform 7 through cooperation with the second sliding blocks 18.

[0032] The lifting frame 8 is slidingly arranged on the inner side of the stamping chamber 2. Specifically, the lifting frame 8 is provided with a plurality of first sliding blocks 16 on the front and rear sides thereof. The first sliding blocks 16 are fixedly connected with the lifting frame 8. A plurality of first sliding grooves 9 are arranged on the inner side of the stamping chamber 2. The first sliding blocks 16 are slidingly arranged in the first sliding grooves 9. The first sliding grooves 9 are also arranged vertically. When the lifting frame 8 is lifted, the first sliding blocks 16 fixedly connected with the lifting frame 8 slide along the first sliding grooves 9. The first sliding grooves 9 limit the lifting frame 8 through cooperation with the first sliding blocks 16.

[0033] The height of the lifting platform 7 is controlled by the first lifting device, which comprises a second screw 12 arranged in one of the second sliding grooves 10, the second screw 12 being rotatably connected to the second sliding groove 10, the top of the second sliding groove 10 being provided with a second motor 14, the output end of the second motor 14 being fixedly connected to the second screw 12, the second screw 12 being sleeved with a second nut seat 17 on the outside, the second nut seat 17 being threadedly connected to the second screw 12, and a second sliding block 18 being sleeved on the outside of the second nut seat 17 and fixedly connected to the second nut seat 17. The lifting platform 7 is lifted and controlled in a screw transmission mode, specifically, the second motor 14 drives the second screw 12 to rotate, the second screw 12 cooperates with the second nut seat 17 during rotation, and drives the second nut seat 17 to move along the shaft of the second screw 12, since the lifting platform 7 is fixed to the second nut seat 17 through the second sliding block 18, the lifting platform 7 will also move.

[0034] The height of the lifting frame 8 is controlled by the second lifting device, which comprises a first screw 11 arranged in one of the first sliding grooves 9, the first screw 11 being rotatably connected to the first sliding groove 9, the top of the first sliding groove 9 being provided with a first motor 13, the output end of the first motor 13 being fixedly connected to the first screw 11, the first screw 11 being sleeved with a first nut seat 15 on the outside, the first nut seat 15 being threadedly connected to the first screw 11, and a first sliding block 16 being sleeved on the outside of the first nut seat 15 and fixedly connected to the first nut seat 15. The lifting frame 8 is also lifted and controlled in a screw transmission mode, specifically, the first motor 13 drives the first screw 11 to rotate, the first screw 11 cooperates with the first nut seat 15 during rotation, and drives the first nut seat 15 to move along the shaft of the first screw 11, since the lifting frame 8 is fixed to the first nut seat 15 through the first sliding block 16, the lifting frame 8 will also move.

[0035] Working principle of the present application:

[0036] The refrigerator outer plate that needs to be bent is placed above the floating table 4, and the edge of the outer plate is stamped and bent by the stamping part. During stamping, the first lifting device pushes the lifting platform 7 to rise, and the second lifting device pushes the lifting frame 8 to fall, the lifting platform 7 cooperates with the lifting frame 8 to fix the outer plate in the middle of the stamping part, ensuring that the outer plate does not shake during stamping, improving the stability of the door plate stamping. Before and after stamping, the second conveying belt 19 on the lifting frame 8 can cooperate with the first conveying belt 6 to realize automatic feeding and discharging of the plate part, improving the bending efficiency.

[0037] In the description of the application, it should be noted that the terms "upper", "lower", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. Unless otherwise expressly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0038] The above is only a specific embodiment of the application, which enables those skilled in the art to understand or implement the application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A refrigerator door bending device, comprising a bending box (1), wherein a pressing chamber (2) is provided inside the bending box (1), a floating platform (4) is fixedly provided at the bottom of the pressing chamber (2), and a pressing part is provided at the upper end of the floating platform (4), characterized in that: A lifting platform (7) is provided on one side of the stamping part. The lifting platform (7) is slidably disposed inside the stamping chamber (2). A first lifting device for adjusting the height of the lifting platform (7) is provided inside the stamping chamber (2). A lifting frame (8) is provided above the lifting platform (7). A second conveyor belt (19) is laid inside the lifting frame (8). Several dot-shaped protrusions are provided on the outside of the second conveyor belt (19). The lifting frame (8) is slidably disposed inside the stamping chamber (2). A second lifting device for adjusting the height of the lifting frame (8) is provided inside the stamping chamber (2). The bottom of the stamping chamber (2) is provided with a first conveyor belt (6), which is located on the side of the lifting platform (7) away from the floating platform (4), and one end of the first conveyor belt (6) extends to the bottom of the lifting frame (8).

2. The refrigerator door bending device according to claim 1, characterized in that: The stamping part includes a punch (3) and a bottom die (5). The lower end of the punch (3) is engaged with the upper end of the bottom die (5). The punch (3) is fixedly connected to a hydraulic cylinder located at the top of the stamping chamber (2). The bottom die (5) is floatingly mounted on the upper end of the floating platform (4).

3. The refrigerator door bending device according to claim 1, characterized in that: The lifting platform (7) has multiple second sliders (18) on its front and rear sides. The second sliders (18) are fixedly connected to the lifting platform (7). The stamping chamber (2) has multiple second slide grooves (10) on its inner side. The second sliders (18) are slidably disposed in the second slide grooves (10).

4. A refrigerator door bending device according to claim 1, characterized in that: The lifting frame (8) has multiple first sliders (16) on its front and rear sides. The first sliders (16) are fixedly connected to the lifting frame (8). The stamping chamber (2) has multiple first grooves (9) on its inner side. The first sliders (16) are slidably disposed in the first grooves (9).

5. A refrigerator door bending device according to claim 3, characterized in that: The first lifting device includes a second screw (12) disposed in one of the second slide grooves (10), the second screw (12) being rotatably connected to the second slide groove (10), a second motor (14) being provided at the top of the second slide groove (10), the output end of the second motor (14) being fixedly connected to the second screw (12), a second nut seat (17) being sleeved on the outside of the second screw (12), the second nut seat (17) being threadedly connected to the second screw (12), and the second slider (18) being sleeved on the outside of the second nut seat (17) and fixedly connected to the second nut seat (17).

6. A refrigerator door bending device according to claim 4, characterized in that: The second lifting device includes a first screw (11) disposed in one of the first slide grooves (9), the first screw (11) being rotatably connected to the first slide groove (9), a first motor (13) being provided at the top of the first slide groove (9), the output end of the first motor (13) being fixedly connected to the first screw (11), a first nut seat (15) being sleeved on the outside of the first screw (11), the first nut seat (15) being threadedly connected to the first screw (11), and the first slider (16) being sleeved on the outside of the first nut seat (15) and fixedly connected to the first nut seat (15).

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