Blanking machine for manufacturing household appliance parts

Abstract

The utility model discloses a blanking machine for manufacturing parts of household appliances. The blanking machine comprises a rack; the upper die assembly is in sliding fit with the rack and comprises a first movable plate, a hydraulic device and an upper die, the first movable plate is in sliding fit with the rack, the hydraulic device is fixedly installed on the rack, the hydraulic rod end of the hydraulic device is fixedly connected with the first movable plate, and the upper die is fixed to the bottom of the first movable plate; and the lower die assembly is fixedly mounted on the rack, and the lower die assembly is arranged below the upper die assembly. When the first movable plate ascends and resets, the second movable plate and the ejector rod are driven by the connecting rod to ascend synchronously, the ejector rod penetrates through the guide hole to eject a formed product out of the die cavity, blanking of a stamped product is facilitated, in the whole stamping process, the lower die and the die cavity are fixed relative to the rack, motion errors cannot be generated, and in the long-term stamping work, the stamping quality is improved. And the problem that the product accuracy is reduced due to motion errors generated by the moving lower die is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, and particularly relates to a blanking machine for manufacturing household appliance parts. Background Technique

[0002] During the processing of household appliances, some of the component parts have relatively special shapes and structures. The flat structure is placed on the stamping die for processing, and the flat plate is processed into a special-shaped structure through the pressing of the stamping structure. The processing speed is relatively fast, and the forming effect is good, which is widely used in the processing of household appliance parts.

[0003] The existing Chinese utility model patent with the application number 201922456940.2, "A stamping die for household appliances that facilitates rapid blanking", discloses that "it includes a working frame, a bottom motor, and a round rod. The upper surface of the working frame is penetrated and connected with a hydraulic structure, and the lower surface of the hydraulic structure is fixedly installed with an upper die. Both sides inside the working frame are connected to the side dies through internal rotating shafts. The bottom motor is fixedly installed inside the lower end of the working frame, and a disc is rotatably connected to the side of the bottom motor. The round rods are symmetrically welded on both sides inside the working frame, and the round rods are connected to the positioning rods through round grooves, and the round grooves are opened inside the positioning rods. The upper surface of the positioning rod is welded with an intermediate die, and the lower end of the positioning rod is connected to the working frame through a limiting spring. The outer sides of both sides of the working frame are symmetrically fixedly installed with side motors, and a lead screw is rotatably connected to the side of the side motors, and the lead screw penetrates through the working frame. The outer side of the lead screw is movably connected with a clamping plate, and the inner side of the clamping plate is connected to a roller through a side rotating shaft."

[0004] In Patent 201922456940.2, the lower die assembly consists of two groups of side dies and one group of intermediate dies. The intermediate die is connected to the positioning rod. The side dies and the intermediate die will move during the stamping process, and the error caused by movement wear will gradually increase with the extension of the use time, thus affecting the accuracy of the processed products. Utility Model Content

[0005] The purpose of the present utility model is to provide a blanking machine for manufacturing household appliance parts to solve the technical problems mentioned in the above background technique.

[0006] In order to achieve the above purpose, the present utility model adopts the following technical solutions:

[0007] A blanking machine for manufacturing household appliance parts, comprising:

[0008] A frame;

[0009] The upper die assembly is slidably engaged with the frame. The upper die assembly includes a first movable plate, a hydraulic device, and an upper die. The first movable plate is slidably engaged with the frame. The hydraulic device is fixedly installed on the frame. The hydraulic rod end of the hydraulic device is fixedly connected to the first movable plate. The upper die is fixedly installed at the bottom of the first movable plate.

[0010] The lower die assembly is fixedly installed on the frame. The lower die assembly is disposed below the upper die assembly. The lower die assembly includes a lower die. A cavity that mates with the upper die is formed in the lower die. Guide holes penetrating the lower die are disposed in the cavity.

[0011] The ejector assembly is slidably engaged with the frame. The ejector assembly is disposed below the lower die assembly. The ejector assembly includes a second movable plate and ejector rods. The second movable plate is slidably engaged with the frame. The ejector rods are fixedly connected to the top of the second movable plate. The ejector rods are arranged corresponding to the guide holes, and the guide holes accommodate the ejector rods to pass through.

[0012] The positioning assembly is installed on both sides of the lower die.

[0013] The connecting rod is in a C-shaped structure. The two ends of the connecting rod are respectively fixedly connected to the first movable plate and the second movable plate.

[0014] As a further description of the above technical solution:

[0015] The first movable plate includes an upper cross plate, vertical plates, and a lower cross plate. Vertical plates are fixedly provided on both sides of the lower cross plate. The top sides of the two groups of vertical plates are fixedly provided with the upper cross plate. The upper cross plate is slidably engaged with the frame. The upper die is fixedly arranged on the lower cross plate. The hydraulic rod end of the hydraulic structure is fixedly connected to the upper template.

[0016] As a further description of the above technical solution:

[0017] Relieving grooves for accommodating the activities of the positioning assembly are formed on both sides of the lower die. A mounting plate located in the middle and guide plates located on both sides of the mounting plate are fixedly connected to the bottom side of the relieving groove.

[0018] As a further description of the above technical solution:

[0019] The ejector assembly further includes elastic cushion blocks, and the elastic cushion blocks are adhesively bonded to the tops of the ejector rods.

[0020] As a further description of the above technical solution:

[0021] The positioning assembly includes a first electric push rod, a lifting plate, a roller, a bracket, and a second electric push rod. The first electric push rod is fixedly installed on the mounting plate. The push rod end of the first electric push rod is fixedly connected to the bottom of the lifting plate. The second electric push rod is fixedly installed on the lifting plate. The bracket is fixedly connected to the push rod end of the second electric push rod. The roller is rotatably installed on the bracket through a rotating shaft. The lifting plate moves within the relieving groove.

[0022] As a further description of the above technical solution:

[0023] The positioning component further includes a first guide post and a second guide post. On both sides of the bottom of the horizontal end of the lifting plate, there are fixedly connected first guide posts passing through the corresponding side guide plates, and on both sides of the bracket, there are fixedly connected parts passing through the vertical end of the lifting plate.

[0024] As a further description of the above technical solution:

[0025] The frame includes a top plate, columns and support feet. The top plate is fixedly connected with columns arranged around. The bottom of the columns is fixedly connected with support feet. The upper cross plate and the second movable plate are slidably matched with the four groups of columns, and the lower die is fixedly connected to the four groups of columns.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:

[0027] 1. In the present utility model, when the first movable plate descends, under the connection action of the connecting rod, it drives the second movable plate and the ejector rod to descend synchronously. The ejector rod moves away from the guide hole, and the mold cavity cooperates with the upper die to stamp the flat plate into shape. When the first movable plate rises and resets, it drives the second movable plate and the ejector rod to rise synchronously through the connecting rod. The ejector rod passes through the guide hole to eject the formed product from the mold cavity, which is convenient for the blanking of the stamped product. And during the whole stamping process, the lower die and the mold cavity are fixed relative to the frame and will not generate motion errors. During long-term stamping work, it will not cause the problem of product precision decline due to the motion errors generated by the moving lower die.

[0028] 2. In the present utility model, the roller is used to limit the flat plate placed on the lower die. The lifting plate is lifted and lowered by the push rod end of the first electric push rod to adjust the height of the roller, and the bracket is translated by the push rod end of the second electric push rod to adjust the horizontal position of the roller, so as to adapt to flat plates of different widths and thicknesses for limiting, improving its versatility and practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Shows a three-dimensional structural schematic diagram of a blanking press for manufacturing home appliance parts according to an embodiment of the present utility model;

[0030] Figure 2 Shows a state schematic diagram when the upper die is separated from the lower die according to an embodiment of the present utility model;

[0031] Figure 3 Shows a state schematic diagram when the upper die and the lower die are pressed together according to an embodiment of the present utility model;

[0032] Figure 4 Shows a connection structural schematic diagram of the upper die assembly, the connecting rod and the ejecting component according to an embodiment of the present utility model;

[0033] Figure 5The structural schematic diagram of the lower die assembly and the ejector assembly provided according to an embodiment of the present utility model is shown.

[0034] Legend:

[0035] 1. Frame; 11. Top plate; 12. Column; 13. Support foot; 2. Upper die assembly; 21. First movable plate; 22. Hydraulic device; 23. Upper die; 3. Lower die assembly; 31. Lower die; 3101. Mold cavity; 3102. Guide hole; 3103. Relief groove; 32. Mounting plate; 33. Guide plate; 4. Ejector assembly; 41. Second movable plate; 42. Ejector rod; 43. Elastic cushion block; 5. Positioning assembly; 51. First electric push rod; 52. Lifting plate; 53. Roller; 54. Bracket; 55. Second guide post; 56. Second electric push rod; 57. First guide post; 6. Connecting rod. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0037] Please refer to Figures 1 - 5 , the present utility model provides a technical solution: a blanking machine for manufacturing household appliance parts, including:

[0038] As Figure 1 shown, the frame 1 includes a top plate 11, columns 12 and support feet 13. Columns 12 are fixedly connected to the top plate 11 and are arranged around. The bottom of the columns 12 is fixedly connected to the support feet 13.

[0039] As Figure 2 , Figure 4 and Figure 5As shown, the upper die assembly 2 includes a movable plate 21, a hydraulic device 22 and an upper die 23. The movable plate 21 includes an upper horizontal plate, a vertical plate and a lower horizontal plate. Vertical plates are fixedly arranged on both sides of the lower horizontal plate. Upper horizontal plates are fixedly arranged on the top sides of the two groups of vertical plates. Space for accommodating the positioning assembly 5 is reserved on both sides of the movable plate 21 to ensure that the punching die operation is not interfered with. The upper horizontal plate is slidably matched with the frame 1. The upper die 23 is fixedly arranged on the lower horizontal plate. The hydraulic rod end of the hydraulic structure is fixedly connected to the upper template. The upper horizontal plate is slidably matched with the four groups of columns 12. The lower die The tool 31 is fixedly connected to the four groups of columns 12, and the lower mold assembly 3 is arranged below the upper mold assembly 2. The lower mold assembly 3 includes a lower mold 31. The lower mold 31 is provided with a mold cavity 3101 that cooperates with the upper mold 23. The mold cavity 3101 is provided with a guide hole 3102 that penetrates the lower mold 31. The lower mold 31 is provided with a clearance groove 3103 on both sides to accommodate the movement of the positioning assembly 5. The bottom side of the clearance groove 3103 is fixedly connected with a mounting plate 32 located in the middle, and guide plates 33 located on both sides of the mounting plate 32. Start the hydraulic device 22, and the hydraulic rod end of the hydraulic device 22 pushes the movable plate 1 21 to move downward, driving the upper mold 23 to quickly press the flat plate into the lower mold 31. The shape of the mold cavity 3101 corresponds to the upper mold 23, so that the upper mold 23 stamps the flat plate into a certain shape. When the hydraulic device 22 is reset, its hydraulic rod end pushes the movable plate 1 21 and the upper mold 23 out of the mold cavity 3101 and returns to the initial position.

[0040] like Figures 2 - 4 As shown, the ejector assembly 4 is arranged below the lower mold assembly 3, and the ejector assembly 4 includes a movable plate 2 41, a ejector rod 42 and an elastic pad 43. The movable plate 2 41 is slidably matched with the four groups of columns 12, and the ejector rod 42 is fixedly connected to the top of the movable plate 2 41. The ejector rod 42 is correspondingly arranged with the guide hole 3102, and the guide hole 3102 accommodates the ejector rod 42 to pass through. The elastic pad 43 is bonded to the top of the ejector rod 42, and the two ends of the connecting rod 6 are respectively fixedly connected to the movable plate 1 21 and the movable plate 2 41. When the movable plate 1 21 descends, under the connecting action of the connecting rod 6, the movable plate 2 41 and the push rod 42 are driven to descend synchronously, the push rod 42 is away from the guide hole 3102, and the cavity 3101 cooperates with the upper mold 23 to stamp the flat plate. When the movable plate 1 21 rises and resets, the movable plate 2 41 and the push rod 42 are driven to rise synchronously through the connecting rod 6, and the push rod 42 passes through the guide hole 3102 to eject the molded product from the cavity 3101, which is convenient for the unloading of the stamped product. In the whole stamping process, the lower mold 31 and the cavity 3102 are fixed relative to the frame 1, and no motion error will be generated. In the long-term stamping work, the motion error generated by the moving lower mold will not cause the problem of reduced product accuracy.

[0041] like Figure 5As shown, the positioning assembly 5 includes an electric push rod 1 51, a lifting plate 52, a roller 53, a bracket 54, a guide column 2 55, an electric push rod 2 56 and a guide column 1 57. The electric push rod 1 51 is fixedly mounted on the mounting plate 32, the push rod end of the electric push rod 1 51 is fixedly connected to the bottom of the lifting plate 52, the electric push rod 2 56 is fixedly mounted on the lifting plate 52, the bracket 54 is fixedly connected to the push rod end of the electric push rod 2 56, the roller 53 is rotatably mounted on the bracket 54 through a rotating shaft, the lifting plate 52 moves in the give way groove 3103, the bottom sides of the horizontal end of the lifting plate 52 are fixedly connected with guide columns 1 57 passing through the corresponding side guide plates 33, and the vertical ends of the lifting plate 52 are fixedly connected on both sides of the bracket 54. The roller 53 is used to limit the flat plate placed on the lower mold 31. The flat plate is in contact with the roller 53. The rotatable roller 53 does not affect the stamping of the flat plate, and the lifting plate 52 can be pushed up and down by the push rod end of the electric push rod 1 51 to adjust the height of the roller 53. The bracket 54 is pushed to move horizontally by the push rod end of the electric push rod 2 56 to adjust the horizontal position of the roller 53. It is suitable for limiting flat plates of different widths and thicknesses, thereby improving its versatility and practicality.

[0042] Working principle: When in use, first, place the flat plate on the upper mold 31, then, push the lifting plate 52 up and down through the push rod end of the electric push rod 1 51 to adjust the height of the roller 53, and push the bracket 54 to move horizontally through the push rod end of the electric push rod 2 56 to adjust the horizontal position of the roller 53, so that the roller 53 rolls in contact with the middle of both sides of the flat plate;

[0043] Secondly, the hydraulic device 22 is started, and the hydraulic rod end of the hydraulic device 22 pushes the movable plate 1 21 downward, driving the upper mold 23 to quickly press the flat plate into the lower mold 31. The shape of the mold cavity 3101 corresponds to that of the upper mold 23, and the rotatable roller 53 does not affect the flat plate from entering the mold cavity 3101. Therefore, the upper mold 23 stamps the flat plate into a certain shape. At the same time, the movable plate 1 21 descends, and under the connecting action of the connecting rod 6, the movable plate 2 41 and the push rod 42 are driven to descend synchronously, and the push rod 42 is away from the guide hole 3102. After that, the hydraulic device 2 When the upper die 2 is reset, the hydraulic rod end pushes the movable plate 1 21 and the upper die 23 out of the die cavity 3101 and returns to the initial position. At the same time, the movable plate 2 41 and the ejector rod 42 are driven to rise synchronously through the connecting rod 6. The ejector rod 42 passes through the guide hole 3102 to eject the molded product from the die cavity 3101, which is convenient for the unloading of the stamped product. In the whole stamping process, the lower die 31 and the die cavity 3102 are fixed relative to the frame 1, and no motion error will be generated. In the long-term stamping work, the motion error generated by the moving lower die will not cause the problem of reduced product accuracy.

[0044] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A blanking machine for manufacturing home appliance parts, characterized in that, Comprising: A frame (1); An upper die assembly (2), which is slidably engaged with the frame (1). The upper die assembly (2) includes a first movable plate (21), a hydraulic device (22), and an upper die (23). The first movable plate (21) is slidably engaged with the frame (1). The hydraulic device (22) is fixedly installed on the frame (1), and the hydraulic rod end of the hydraulic device (22) is fixedly connected to the first movable plate (21). The upper die (23) is fixed to the bottom of the first movable plate (21); A lower die assembly (3), which is fixedly installed on the frame (1). The lower die assembly (3) is disposed below the upper die assembly (2). The lower die assembly (3) includes a lower die (31). A cavity (3101) that cooperates with the upper die (23) is provided on the lower die (31). A guiding hole (3102) that penetrates the lower die (31) is disposed in the cavity (3101); A blank ejecting assembly (4), which is slidably engaged with the frame (1). The blank ejecting assembly (4) is disposed below the lower die assembly (3). The blank ejecting assembly (4) includes a second movable plate (41) and a ejecting rod (42). The second movable plate (41) is slidably engaged with the frame (1). The ejecting rod (42) is fixedly connected to the top of the second movable plate (41). The ejecting rod (42) is correspondingly arranged with the guiding hole (3102), and the guiding hole (3102) allows the ejecting rod (42) to pass through; A positioning assembly (5), which is installed on both sides of the lower die (31); A connecting rod (6), which has a C-shaped structure. The two ends of the connecting rod (6) are respectively fixedly connected to the first movable plate (21) and the second movable plate (41).

2. The blanking machine for manufacturing household appliance parts according to claim 1, wherein The first movable plate (21) includes an upper cross plate, vertical plates, and a lower cross plate. Vertical plates are fixedly provided on both sides of the lower cross plate, and upper cross plates are fixedly provided on the top sides of the two groups of vertical plates. The upper cross plates are slidably engaged with the frame (1). The upper die (23) is fixedly arranged on the lower cross plate. The hydraulic rod end of the hydraulic structure is fixedly connected to the upper template.

3. The blanking machine for manufacturing home appliance parts according to claim 2, characterized in that, Relieving grooves (3103) for accommodating the movement of the positioning assembly (5) are provided on both sides of the lower die (31). A mounting plate (32) located in the middle and guiding plates (33) located on both sides of the mounting plate (32) are fixedly connected to the bottom side of the relieving grooves (3103).

4. The blanking machine for manufacturing household appliance parts according to claim 3, characterized in that, The blank ejecting assembly (4) further includes an elastic cushion block (43), and the elastic cushion block (43) is adhesively bonded to the top of the ejecting rod (42).

5. The blanking machine for manufacturing home appliance parts according to claim 4, characterized in that, The positioning assembly (5) includes a first electric push rod (51), a lifting plate (52), a roller (53), a bracket (54), and a second electric push rod (56). The first electric push rod (51) is fixedly installed on the mounting plate (32). The push rod end of the first electric push rod (51) is fixedly connected to the bottom of the lifting plate (52). The second electric push rod (56) is fixedly installed on the lifting plate (52). The bracket (54) is fixedly connected to the push rod end of the second electric push rod (56). The roller (53) is rotatably installed on the bracket (54) through a rotating shaft. The lifting plate (52) moves within the relieving groove (3103).

6. The blanking machine for manufacturing home appliance parts according to claim 5, characterized in that, The positioning component (5) further includes a first guide post (57) and a second guide post (55). Both sides of the bottom of the horizontal end of the lifting plate (52) are fixedly connected with a first guide post (57) passing through the corresponding side guide plate (33). Both sides of the bracket (54) are fixedly connected with a part passing through the vertical end of the lifting plate (52).

7. The blanking machine for manufacturing home appliance parts according to claim 6, characterized in that, The machine frame (1) includes a top plate (11), columns (12) and support feet (13). The top plate (11) is fixedly connected with columns (12) arranged around. The bottom of the columns (12) is fixedly connected with support feet (13). The upper cross plate and the second movable plate (41) are slidably matched with the four groups of columns (12). The lower mold (31) is fixedly connected to the four groups of columns (12).

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