Refrigerator door shell stamping die with exhaust holes

Abstract

The refrigerator door shell stamping die with the exhaust holes comprises an installation frame, sliding grooves are formed in the front portion and the rear portion of the inner side of the installation frame, an installation plate is connected to the interior of the installation frame in a sliding mode, lower dies are symmetrically and fixedly connected to the top of the installation plate, upper dies are arranged at the tops of the lower dies, and the exhaust holes are formed in the upper dies. According to the refrigerator door shell stamping die with the exhaust holes, by means of the arrangement of the punching mechanism, after stamping is completed, a driving motor is started, a cam is driven to rotate, the cam extrudes a connecting plate, the connecting plate slides on the outer side of a sliding rod, a punching rod is driven to move, and a workpiece is punched; and a punching rod is located in a shrinkage cavity to extrude a push plate, so that a second spring is shrunk, the situation that punching is conducted after the door shell is punched and disassembled is avoided, punching and one-time punching forming of the refrigerator door shell are achieved, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically a refrigerator door shell stamping die with vent holes. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products). They are called cold stamping dies (commonly known as cold stamping dies). Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or plastically deform, thereby obtaining the desired parts. In the production of refrigerator door shells, stamping dies are required for processing and production.

[0003] Chinese patent CN202943167U discloses a refrigerator door shell stamping die, including a lower die base and an upper die base. The lower die base is provided with a forming die, and the upper die base is connected to a pressure plate a on both sides by stripper pins. The forming die on the lower die base is provided with a guide sleeve, and the lower die base is provided with a guide post that cooperates with the guide sleeve on the forming die. The upper die base is also provided with a guide sleeve, and the pressure plate a is provided with a guide post that cooperates with the guide sleeve on the upper die base. This patent has a simple structure, can simultaneously press the shell from three sides, and the pressing is uniform. However, since some refrigerator door shells are provided with vent holes, it is necessary to open the vent holes after the refrigerator door shell is produced, which reduces the production speed of the refrigerator door shell. Therefore, we propose a refrigerator door shell stamping die with vent holes. Utility Model Content

[0004] The purpose of this utility model is to provide a refrigerator door shell stamping die with a vent hole, so as to solve the problem mentioned in the background art that some refrigerator door shells are provided with vent holes, which requires opening the vent holes after the refrigerator door shell is produced, thus reducing the production speed of the refrigerator door shell.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a refrigerator door shell stamping die with an exhaust hole, including a mounting frame, with sliding grooves provided on the front and rear sides of the inner side of the mounting frame, a mounting plate slidably connected inside the mounting frame, a lower die symmetrically fixedly connected to the top of the mounting plate, an upper die provided on the top of the lower die, and a punching mechanism provided on the front side of the lower die;

[0006] The slide groove is slidably connected to a slide bar, and the slide bar is fixedly connected to the middle of the front and rear sides of the mounting plate. A positioning mechanism is provided at the middle of the rear side of the top of the mounting frame.

[0007] As a further description of the above technical solution:

[0008] The punching mechanism includes a drive motor, a cam, a slide rod, a connecting plate, a first spring, a punching rod, a shrinkage cavity, a second spring, and a push plate. The drive motor is fixedly connected to the middle of the top front side of the mounting frame. The output shaft end of the drive motor is fixedly connected to a cam. The front side of the lower die is symmetrically fixedly connected to a slide rod. The outer side wall of the slide rod is slidably connected to a connecting plate. The rear middle of the connecting plate is fixedly connected to a punching rod. The front side of the upper die has a shrinkage cavity. The rear middle of the shrinkage cavity is fixedly connected to a second spring. The front end of the second spring is fixedly connected to a push plate.

[0009] As a further description of the above technical solution:

[0010] The length of the slide bar is two-thirds of the length of the slide groove, and the length of the slide bar is equal to the length of the mounting plate.

[0011] As a further description of the above technical solution:

[0012] A baffle is fixedly connected to the front end of the slide rod. The front and rear ends of the first spring are fixedly connected to the opposite sides of the connecting plate and the lower mold, respectively. The diameter of the punch rod is equal to the diameter of the shrinkage cavity. The outer side wall of the push plate fits against the inner side wall of the shrinkage cavity. The punch rod penetrates the front side of the inner cavity of the lower mold.

[0013] As a further description of the above technical solution:

[0014] The positioning mechanism includes a mounting box, a third spring, a movable plate, a locking block, and a locking groove. The mounting box is fixedly connected to the middle of the rear side of the top of the mounting frame. The third spring is evenly fixedly connected to the top of the inner cavity of the mounting box. The movable plate is fixedly connected to the bottom end of the third spring. The locking block is fixedly connected to the middle of the bottom of the movable plate. The locking groove is symmetrically opened on the top of the rear slide bar.

[0015] As a further description of the above technical solution:

[0016] The movable plate is slidably connected to the inside of the mounting box. A through groove is provided through the top center of the rear sliding groove, and the locking block is located inside the through groove. The left and right sides of the locking block and the left and right sides of the locking groove are all provided with inclined surfaces.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This refrigerator door shell stamping die with vent holes utilizes a punching mechanism. After stamping, the drive motor is activated to rotate the cam, causing it to press against the connecting plate. This causes the connecting plate to slide outside the slide rod, moving the punching rod to punch the workpiece. The punching rod is positioned in the shrinkage cavity, pressing against the push plate and causing the second spring to contract. This avoids the need to disassemble the door shell after stamping and then punch it, achieving one-time forming of the refrigerator door shell stamping and punching, thus improving production efficiency.

[0019] 2. This refrigerator door shell stamping die with vent holes utilizes a positioning mechanism. After stamping, the mounting plate is pushed, causing the slide bar to move. This causes the slot to press against the block, retracting the moving plate and pressing the third spring. When another slot aligns with the block, the third spring resets, causing the block to embed in the other slot, positioning the slide bar, and placing the other lower die at the bottom of the upper die. This facilitates continuous production and processing, further improving processing efficiency, and avoids directly loading and unloading workpieces at the bottom of the upper die, thus enhancing safety. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a refrigerator door shell stamping die with vent holes proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the punching rod installation structure of a refrigerator door shell stamping die with an exhaust hole proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the second spring mounting structure of a refrigerator door shell stamping die with an exhaust hole proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the third spring mounting structure of a refrigerator door shell stamping die with an exhaust hole proposed in this utility model.

[0024] Figure 5 This is a schematic diagram of the slot opening structure of a refrigerator door shell stamping die with an exhaust hole proposed in this utility model.

[0025] In the diagram: 100, mounting frame; 200, slide rail; 210, slide bar; 220, mounting box; 230, third spring; 240, moving plate; 250, locking block; 260, locking slot; 300, mounting plate; 400, lower mold; 500, upper mold; 600, drive motor; 610, cam; 620, slide rod; 630, connecting plate; 640, first spring; 650, punching rod; 660, contraction chamber; 670, second spring; 680, push plate. Detailed Implementation

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

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] This utility model provides a refrigerator door shell stamping die with vent holes, avoiding the need to disassemble the door shell after stamping and then punch holes, thus achieving one-time forming of the refrigerator door shell stamping and punching, improving production efficiency. Please refer to [link / reference]. Figure 1-5 Including mounting frame 100;

[0030] Please refer to it again. Figure 1 The mounting frame 100 has a sliding groove 200 on the front and rear sides of its inner side. The mounting plate 300 is slidably connected inside the mounting frame 100. The lower mold 400 is symmetrically fixedly connected to the top of the mounting plate 300. The upper mold 500 is provided on the top of the lower mold 400. The punching mechanism is provided on the front side of the lower mold 400.

[0031] Please refer to it again. Figure 1The slide groove 200 is internally slidably connected with a slide bar 210, and the slide bar 210 is fixedly connected to the middle of the front and rear sides of the mounting plate 300. A positioning mechanism is provided at the middle of the rear side of the top of the mounting frame 100.

[0032] Please refer to it again. Figure 2-3 The punching mechanism includes a drive motor 600, a cam 610, a slide rod 620, a connecting plate 630, a first spring 640, a punching rod 650, a shrinkage chamber 660, a second spring 670, and a push plate 680.

[0033] Please refer to it again. Figure 2 A drive motor 600 is fixedly connected to the middle of the front top of the mounting frame 100. A cam 610 is fixedly connected to the end of the output shaft of the drive motor 600. A slide rod 620 is symmetrically fixedly connected to the front side of the lower mold 400. A connecting plate 630 is slidably connected to the outer side wall of the slide rod 620. A punching rod 650 is fixedly connected to the middle of the rear side of the connecting plate 630.

[0034] Please refer to it again. Figure 3 The upper mold 500 has a shrinkage cavity 660 on the front side, and a second spring 670 is fixedly connected to the middle of the rear side of the shrinkage cavity 660. A push plate 680 is fixedly connected to the front end of the second spring 670.

[0035] In summary, by utilizing the punching mechanism, after the punching is completed, the drive motor 600 is started, driving the cam 610 to rotate. The cam 610 then presses against the connecting plate 630, causing the connecting plate 630 to slide outside the slide rod 620. This moves the punching rod 650 to punch the workpiece, positioning the punching rod 650 in the shrinkage cavity 660. The punching rod then presses against the push plate 680, causing the second spring 670 to contract. This avoids the need to disassemble the door shell after punching and then punch it, achieving one-time forming of the refrigerator door shell's punching and punching, thus improving production efficiency.

[0036] Please refer to it again. Figure 4 The length of the slide bar 210 is two-thirds of the length of the slide groove 200, and the length of the slide bar 210 is equal to the length of the mounting plate 300.

[0037] Please refer to it again. Figure 2-3 A baffle is fixedly connected to the front end of the slide rod 620. The front and rear ends of the first spring 640 are fixedly connected to the opposite sides of the connecting plate 630 and the lower mold 400, respectively. The diameter of the punch rod 650 is equal to the diameter of the shrinkage cavity 660. The outer wall of the push plate 680 fits against the inner wall of the shrinkage cavity 660. The punch rod 650 penetrates the front side of the inner cavity of the lower mold 400.

[0038] Please refer to it again. Figure 4The positioning mechanism includes a mounting box 220, a third spring 230, a moving plate 240, a locking block 250, and a locking groove 260. The mounting box 220 is fixedly connected to the middle of the rear side of the top of the mounting frame 100. The third spring 230 is evenly fixedly connected to the top of the inner cavity of the mounting box 220. The moving plate 240 is fixedly connected to the bottom end of the third spring 230. The locking block 250 is fixedly connected to the middle of the bottom of the moving plate 240. The locking groove 260 is symmetrically opened on the top of the rear slide bar 210.

[0039] Please refer to it again. Figure 4 The movable plate 240 is slidably connected to the inside of the mounting box 220. A through groove is provided in the top center of the rear slide groove 200, and the locking block 250 is located inside the through groove. The left and right sides of the locking block 250 and the left and right sides of the locking groove 260 are all provided with inclined surfaces.

[0040] In summary, by utilizing the positioning mechanism, after stamping, the mounting plate 300 is pushed, causing the slide bar 210 to move, which in turn causes the slot 260 to press against the block 250, causing the moving plate 240 to retract and press against the third spring 230. When the other slot 260 aligns with the block 250, the third spring 230 resets, causing the block 250 to be embedded in the other slot 260, positioning the slide bar 210, and positioning the other lower die 400 at the bottom of the upper die 500. This facilitates continuous production and processing, further improving processing efficiency, and avoids directly loading and unloading workpieces at the bottom of the upper die 500, thus improving safety.

[0041] In practical use, when performing punching, the upper die 500 is installed on the stamping device, the workpiece is placed on the lower die 400, and the stamping device is started, causing the upper die 500 to punch the workpiece, closing the upper die 500 and the lower die 400. Then, the drive motor 600 is started, driving the cam 610 to rotate, causing the cam 610 to press against the connecting plate 630, making the connecting plate 630 slide outside the slide rod 620, driving the punching rod 650 to move, punching the workpiece, so that the punching rod 650 is located in the shrinkage cavity 660, pressing against the push plate 680, causing the second spring 670 to contract. When the cam 610 stops pressing the connecting plate 630, the first spring 640 resets, driving the connecting plate 630... 0. Reset, causing the punch rod 650 to move out of the shrinkage cavity 660. The second spring 670 resets, driving the push plate 680 to reset, pushing the waste material out of the shrinkage cavity 660. Then, the upper die 500 resets, pushing the mounting plate 300, causing the slide bar 210 to move, causing the slot 260 to press the block 250, causing the moving plate 240 to retract, pressing the third spring 230. When the other slot 260 is aligned with the block 250, the third spring 230 resets, causing the block 250 to be embedded in the other slot 260, positioning the slide bar 210, and placing the other lower die 400 at the bottom of the upper die 500. Repeat the stamping steps. At this time, the idle lower die 400 is loaded and unloaded to facilitate the next stamping.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A refrigerator door shell stamping die with a vent, characterized in that: The system includes a mounting frame (100), with sliding grooves (200) provided on the front and rear sides of the inner side of the mounting frame (100). A mounting plate (300) is slidably connected inside the mounting frame (100). A lower mold (400) is symmetrically fixedly connected to the top of the mounting plate (300). An upper mold (500) is provided on the top of the lower mold (400). A punching mechanism is provided on the front side of the lower mold (400). The slide groove (200) is slidably connected to a slide bar (210), and the slide bar (210) is fixedly connected to the middle of the front and rear sides of the mounting plate (300). A positioning mechanism is provided at the middle of the rear side of the top of the mounting frame (100).

2. The refrigerator door shell stamping die with vent holes according to claim 1, characterized in that: The punching mechanism includes a drive motor (600), a cam (610), a slide rod (620), a connecting plate (630), a first spring (640), a punching rod (650), a shrinkage cavity (660), a second spring (670), and a push plate (680). The drive motor (600) is fixedly connected to the middle of the top front side of the mounting frame (100). The cam (610) is fixedly connected to the end of the output shaft of the drive motor (600). The lower die (4... A sliding rod (620) is symmetrically fixedly connected to the front side of the upper die (500). A connecting plate (630) is slidably connected to the outer side wall of the sliding rod (620). A punching rod (650) is fixedly connected to the middle rear side of the connecting plate (630). A shrinkage cavity (660) is opened on the front side of the upper die (500). A second spring (670) is fixedly connected to the middle rear side of the shrinkage cavity (660). A push plate (680) is fixedly connected to the front end of the second spring (670).

3. The refrigerator door shell stamping die with vent holes according to claim 1, characterized in that: The length of the slide bar (210) is two-thirds of the length of the slide groove (200), and the length of the slide bar (210) is equal to the length of the mounting plate (300).

4. A refrigerator door shell stamping die with vent holes according to claim 2, characterized in that: A baffle is fixedly connected to the front end of the slide rod (620). The front and rear ends of the first spring (640) are fixedly connected to the opposite sides of the connecting plate (630) and the lower mold (400), respectively. The diameter of the punch rod (650) is equal to the diameter of the shrinkage cavity (660). The outer side wall of the push plate (680) is in contact with the inner side wall of the shrinkage cavity (660). The punch rod (650) penetrates the front side of the inner cavity of the lower mold (400).

5. A refrigerator door shell stamping die with vent holes according to claim 1, characterized in that: The positioning mechanism includes a mounting box (220), a third spring (230), a moving plate (240), a locking block (250), and a locking groove (260). The mounting box (220) is fixedly connected to the middle of the rear side of the top of the mounting frame (100). The third spring (230) is evenly fixedly connected to the top of the inner cavity of the mounting box (220). The moving plate (240) is fixedly connected to the bottom end of the third spring (230). The locking block (250) is fixedly connected to the middle of the bottom of the moving plate (240). The locking groove (260) is symmetrically opened on the top of the rear slide bar (210).

6. A refrigerator door shell stamping die with vent holes according to claim 5, characterized in that: The movable plate (240) is slidably connected to the interior of the mounting box (220). A through groove is provided in the top center of the rear slide groove (200), and the locking block (250) is located inside the through groove. The left and right sides of the locking block (250) and the left and right sides of the locking groove (260) are provided with inclined surfaces.

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