Cup punching and stretching device for alloy two-piece can

Abstract

The invention discloses an alloy two-piece can cup punching and stretching device, and particularly relates to the technical field of stretching devices.The alloy two-piece can cup punching and stretching device comprises a shell, stretching assemblies are jointly slidably mounted at the ends, close to each other, of two baffles, and oiling assemblies are jointly fixedly mounted at the upper portion of the front side wall of the inner surface of the shell and the upper portion of the rear side wall of the inner surface of the shell; a scraping assembly is fixedly installed in the middle of the front side wall and the middle of the rear side wall of the inner surface of the shell jointly, and a storage assembly is slidably installed on the bottom wall of the shell. According to the cup punching and stretching device for the alloy two-piece can, through the arranged stretching assembly, in the stretching process of an aluminum alloy material, downward pressure is applied to the surface of a plate, so that the aluminum alloy material is more stable in the stretching process, secondary stretching can be achieved in the stretching process, and meanwhile through the arranged oil adding assembly, the oil adding efficiency is improved. In the stretching process, cooling oil can be sprayed to the contact face of the machining device and the aluminum alloy material, and the situation that the material adheres to the surface of the machining device due to overheating of the surface of the device is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of stretching devices, and particularly relates to a stretching device for alloy two-piece cans for cup drawing. Background Art

[0002] The stretching device for alloy two-piece cans for cup drawing is a special equipment for producing metal packaging cans, mainly used for processing alloy plates such as aluminum alloy or tinplate into seamless can bodies. Its core processes include cup drawing and stretching.

[0003] First, the metal plate is formed by stamping to form a cup-shaped blank. Subsequently, through a multi-stage stretching process, the can body is gradually thinned and elongated until the required can body shape is finally formed. This device uses high-precision molds and an automated control system to ensure uniform can body dimensions and a smooth surface, and is suitable for lightweight packaging production in industries such as beverages and food. The device has characteristics such as high efficiency, stability, and energy conservation, and is one of the key technologies in modern metal packaging manufacturing.

[0004] Chinese Patent Publication No. CN221133725U discloses a stretching device for alloy two-piece cans for cup drawing, including a frame. At the center of the inner bottom of the frame, two mutually contacting outer molds are slidably connected. A motor is fixedly installed at the upper end of the frame. A blanking mechanism is arranged inside the frame. A hanging plate is arranged on the blanking mechanism. The hanging plate contacts the outer molds. A core mold is welded to the lower end of the hanging plate. The core mold and the outer molds are slidably connected. A mold closing mechanism is arranged on the hanging plate. Through the motor driving the hanging plate to move up and down, the connecting rod drives the guide block to slide in the guide groove and the limiting groove, so that the clutch control between the two outer molds is facilitated, and it is convenient for the can body to be separated from the outer mold after forming, avoiding inconvenient separation between the can body and the outer mold due to vacuum adsorption.

[0005] Although the equipment in the above patent document can perform stretching and forming processing on aluminum alloy during use, in actual use, it is impossible to add cooling oil to the surface of the device and the material during the stretching process, resulting in the material cracking during continuous stretching, and there is a lack of a device for uniformly collecting and stacking the finished materials subsequently, thereby reducing the overall working efficiency. Summary of the Invention

[0006] The main purpose of the present invention is to provide a stretching device for alloy two-piece cans for cup drawing, which can effectively solve the problem that during actual use, it is impossible to add cooling oil to the surface of the device and the material during the stretching process, resulting in the material cracking during continuous stretching, and there is a lack of a device for uniformly collecting and stacking the finished materials subsequently, thereby reducing the overall working efficiency.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0008] An alloy two-piece can cup drawing device, comprising a housing, with baffles fixedly connected to the front and rear upper ends of the housing respectively. A concave plate is fixedly connected to the middle of the mutually remote ends of the two baffles. A hydraulic cylinder is fixedly connected to the top wall of the concave plate. A drawing assembly is slidably installed at the mutually close ends of the two baffles. An oil adding assembly is fixedly installed at the upper middle part of the front side wall and the upper middle part of the rear side wall of the inner surface of the housing. A scraping assembly is fixedly installed at the middle part of the front side wall and the middle part of the rear side wall of the inner surface of the housing. A discharge port is opened at the lower part of the front end of the housing. A material storage assembly is slidably installed on the bottom wall of the housing.

[0009] Preferably, the drawing assembly includes a blanking table slidably connected to the mutually close ends of the two baffles. The output end of the hydraulic cylinder is fixedly connected to a trapezoidal platform through a piston rod. The lower end of the trapezoidal platform is fixedly connected to the upper end of the blanking table. A number of limiting holes are linearly arranged on the upper end of the blanking table. A number of fixing assemblies are fixedly installed at the lower end of the blanking table. A rectangular plate is fixedly connected to the upper edge of the front side wall and the upper edge of the rear side wall of the inner surface of the housing. A number of guiding holes penetrating the lower end of the rectangular plate are linearly arranged on the upper end of the rectangular plate. A number of drawing rings are fixedly connected to the lower end of the rectangular plate. Fixing blocks are fixedly connected to the mutually close sides of the number of drawing rings. The fixing blocks on the left and right sides are respectively fixedly connected to the left side wall and the right side wall of the inner surface of the housing.

[0010] Preferably, the number of fixing assemblies includes a number of drawing rods linearly arranged and fixedly connected to the lower end of the blanking table. Fixing rings are slidably connected to the outer surfaces of the number of drawing rods. Guide columns are fixedly connected to the middle parts of the upper left sides and the upper right sides of the number of fixing rings. The outer surfaces of the number of guide columns are slidably connected to the inner surfaces of the limiting holes on the same side. Spring ones are fixedly connected to the middle parts of the upper left sides and the upper right sides of the number of fixing rings. The upper ends of the number of spring ones are fixedly connected to the lower end of the blanking table. The number of spring ones are respectively located outside the guide columns on the same side.

[0011] Preferably, the oil adding assembly includes a number of hollow rings. Connecting blocks are fixedly connected to the middle parts of the left and right sides of the front side wall and the middle parts of the left and right sides of the rear side wall of the inner surface of the housing. The four connecting blocks are respectively fixedly connected to the outer surfaces of the hollow rings on the same side. Four oil outlet grooves are annularly arranged on the inner surfaces of the number of hollow rings. Extrusion blocks are slidably connected to the inner surfaces of the four oil outlet grooves on the same side. Spring twos are fixedly connected to the mutually close ends of the inner surfaces of the number of hollow rings and the four extrusion blocks on the same side. An L-shaped oil adding pipe is fixedly connected to the middle part of the outer surface of the hollow ring at the frontmost middle part. The mutually close sides of the number of hollow rings are fixedly connected to each other through communicating pipes. The number of communicating pipes are respectively communicated with the inner cavities of the hollow rings on the same side. The L-shaped oil adding pipe is communicated with the inner cavity of the hollow ring on the same side. The outer surface of the L-shaped oil adding pipe penetrates the rear side wall of the inner surface of the housing and extends to the outside.

[0012] Preferably, the scraping component includes a fixing plate fixedly connected to the middle of the front side wall and the rear side wall of the inner surface of the outer shell. A plurality of scraping holes are arranged in a linear array at the upper end of the fixing plate. Two guiding grooves symmetrically distributed in the front and rear directions are arranged on the inner surfaces of the plurality of scraping holes. Arc-shaped plates are slidably connected to the inner surfaces of the guiding grooves on the same side. Springs III are fixedly connected to the mutually approaching ends of the arc-shaped plates on the same side and the guiding grooves on the same side.

[0013] Preferably, the upper parts of the outer surfaces of the plurality of arc-shaped plates are all arranged in an arc shape.

[0014] Preferably, the stock storage component includes a stock storage box slidably connected to the bottom wall of the outer shell. A plurality of stacking columns are fixedly connected to the bottom wall of the stock storage box. Stacking grooves are arranged at the upper ends of the plurality of stacking columns. A plurality of sliding grooves penetrating the inner cavity of the stock storage box are linearly arrayed and arranged at the front end of the stock storage box. Push rods are slidably connected to the inner surfaces of the plurality of sliding grooves. The plurality of push rods are respectively located inside the plurality of stacking grooves on the same side. A handle is fixedly connected to the front ends of the plurality of push rods.

[0015] Preferably, the number of the plurality of stacking columns is equal to the number of the plurality of scraping holes, the plurality of hollow rings, the plurality of stretching rings, the plurality of guiding holes, and the plurality of stretching rods.

[0016] Preferably, the length of the plurality of stretching rods is greater than the distance from the upper end of the rectangular plate to the lower end of the fixing plate.

[0017] Preferably, the plurality of extrusion blocks are all trapezoidally arranged.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Through the stretching component provided in the present invention, during the stretching process of the aluminum alloy material, a downward pressure is applied to the surface of the plate, making the aluminum alloy material more stable during the stretching process, and secondary stretching can be achieved during the stretching process, thereby improving the subsequent forming efficiency of the aluminum alloy material. At the same time, through the oil adding component provided, cooling oil can be sprayed on the contact surface between the processing device and the aluminum alloy material during the stretching process, avoiding the aluminum alloy material adhering to the surface of the processing device due to overheating of the surface during long-term use of the processing device.

[0020] 2. Through the scraping component provided in the present invention, after the stretching processing of the aluminum alloy material is completed, the stretched and formed finished product can be separated from the surface of the processing device, and the subsequent normal stretching processing will not be affected. At the same time, through the stock storage component provided, when the scraping component peels off the finished product, the finished product can directly fall onto the stock storage component for neat stacking. After batch production, the stock storage component can be directly pulled out, and the finished products in the stock storage component can be uniformly taken out, with convenient and fast operation, thereby improving the material taking efficiency. Description of the Drawings

[0021] Figure 1Schematic diagram of the overall structure of the present invention;

[0022] Figure 2 Schematic semi-sectional view of the overall structure of the present invention;

[0023] Figure 3 Schematic diagram of the structure of the stretching component of the present invention;

[0024] Figure 4 Schematic diagram of the structure of the fixing component of the present invention;

[0025] Figure 5 Schematic diagram of the installation position of the partial structure of the stretching component of the present invention;

[0026] Figure 6 Schematic diagram of the structure of the stretching ring and the fixing block of the present invention;

[0027] Figure 7 Schematic diagram of the overall structure of the fuel filling component of the present invention;

[0028] Figure 8 Schematic diagram of the overall structure of the scraping component of the present invention;

[0029] Figure 9 Schematic diagram of the overall structure of the stock storage component of the present invention;

[0030] Figure 10 For the present invention Figure 7 Enlarged schematic diagram of the structure at position A;

[0031] Figure 11 For the present invention Figure 8 Enlarged schematic diagram of the structure at position B.

[0032] In the figure: 1. Outer shell; 2. Baffle; 3. Concave plate; 4. Hydraulic cylinder; 5. Stretching component; 51. Trapezoidal platform; 52. Material discharging table; 53. Limiting hole; 54. Fixing component; 541. Stretching rod; 542. Fixing ring; 543. Guide post; 544. First spring; 55. Rectangular plate; 56. Guide hole; 57. Stretching ring; 58. Fixing block; 6. Fuel filling component; 61. Connecting block; 62. Hollow ring; 63. Oil outlet groove; 64. Extrusion block; 65. Second spring; 66. Through oil pipe; 67. L-shaped fuel filling pipe; 7. Scraping component; 71. Fixing plate; 72. Scraping hole; 73. Guide groove; 74. Arc plate; 75. Third spring; 8. Stock storage component; 81. Stock storage box; 82. Palletizing column; 83. Palletizing groove; 84. Push rod; 85. Handle; 86. Slide groove. Detailed implementation manners

[0033] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0034] Example 1, as Figure 1 and Figure 2 shown, an alloy two-piece can cup drawing device includes a housing 1. At the front and rear upper parts of the housing 1, baffles 2 are fixedly connected. At the middle parts of the mutually remote ends of the two baffles 2, a concave plate 3 is fixedly connected. A hydraulic cylinder 4 is fixedly connected to the top wall of the concave plate 3. At the mutually close ends of the two baffles 2, a stretching assembly 5 is slidably installed. By setting the stretching assembly 5, during the process of stretching the aluminum alloy material, a downward pressure is applied to the surface of the sheet material, making the aluminum alloy material more stable during the stretching process, and secondary stretching can be achieved during the stretching process, thereby improving the subsequent forming efficiency of the aluminum alloy material;

[0035] At the upper parts of the front side wall and the rear side wall of the inner surface of the housing 1, an oil adding assembly 6 is fixedly installed. By setting the oil adding assembly 6, during the stretching process, cooling oil can be sprayed on the contact surface between the processing device and the aluminum alloy material, avoiding the aluminum alloy material from adhering to the surface of the processing device due to overheating of the surface during long-term use;

[0036] At the middle parts of the front side wall and the rear side wall of the inner surface of the housing 1, a scraping assembly 7 is fixedly installed. By setting the scraping assembly 7, after the stretching process of the aluminum alloy material is completed, the stretched and formed finished product can be separated from the surface of the processing device, and the subsequent normal stretching process will not be affected;

[0037] At the lower part of the front end of the housing 1, a discharge port is provided. A stockpiling assembly 8 is slidably installed on the bottom wall of the housing 1. By setting the stockpiling assembly 8, when the scraping assembly 7 peels off the finished product, the finished product can directly fall into the stockpiling assembly 8 for neat stacking. After batch production, the stockpiling assembly 8 can be directly pulled out, and the finished products in the stockpiling assembly 8 can be taken out uniformly, which is convenient and fast to operate, thereby improving the material taking efficiency.

[0038] Example 2, on the basis of Example 1, for the purpose of realizing secondary stretching of the aluminum alloy material during stretching and fixing the aluminum alloy material during stretching.

[0039] Specifically, refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6, the stretching assembly 5 includes a material placing table 52 which is slidably connected to the mutually approaching ends of two baffles 2. The output end of the hydraulic cylinder 4 is fixedly connected with a trapezoidal platform 51 through a piston rod. The lower end of the trapezoidal platform 51 is fixedly connected to the upper end of the material placing table 52. A number of limiting holes 53 are linearly arranged on the upper end of the material placing table 52. A number of fixing assemblies 54 are fixedly installed at the lower end of the material placing table 52. The upper edge of the front side wall and the upper edge of the rear side wall of the inner surface of the housing 1 are fixedly connected together with a rectangular plate 55. A number of guiding holes 56 penetrating through the lower end of the rectangular plate 55 are linearly arranged on the upper end of the rectangular plate 55. The lower end of the rectangular plate 55 is fixedly connected with a number of stretching rings 57. A fixing block 58 is fixedly connected to the mutually approaching sides of the number of stretching rings 57. The fixing blocks 58 on the left side and the right side are respectively fixedly connected to the left side wall and the right side wall of the inner surface of the housing 1.

[0040] Furthermore, a number of fixing assemblies 54 include a number of stretching rods 541 fixedly connected to the lower end of the material placing table 52 in a linear array. A fixing ring 542 is slidably connected to the outer surface of each of the number of stretching rods 541. A guiding column 543 is fixedly connected to the middle of the upper left side and the middle of the upper right side of the upper end of each of the number of fixing rings 542. The outer surface of each of the number of guiding columns 543 is slidably connected to the inner surface of the limiting hole 53 on the same side. A spring 544 is fixedly connected to the middle of the upper left side and the middle of the upper right side of the upper end of each of the number of fixing rings 542. The upper ends of the number of springs 544 are fixedly connected to the lower end of the material placing table 52. The number of springs 544 are respectively located outside the guiding columns 543 on the same side.

[0041] By placing the aluminum alloy plate to be stretched on the upper end of the rectangular plate 55, then starting the hydraulic cylinder 4, the output end of the hydraulic cylinder 4 drives the trapezoidal platform 51 to move downward through the piston rod. When the trapezoidal platform 51 moves downward, since the upper end of the material placing table 52 is fixedly connected to the lower end of the trapezoidal platform 51, and the front end and the rear end of the material placing table 52 are slidably connected to the front side wall and the rear side wall of the inner surface of the baffle 2, the material placing table 52 moves downward simultaneously. When the material placing table 52 moves downward, it can drive a number of stretching rods 541 fixedly connected to its lower end to move downward simultaneously. The stretching rods 541 drive the fixing rings 542 on their outer surfaces to move downward simultaneously. When the fixing rings 542 contact the surface of the aluminum alloy plate, the stretching rods 541 can stretch the aluminum alloy plate corresponding to their lower ends;

[0042] At the same time, the stretching rods 541 on the same side move downward on the inner surface of the fixing rings 542, and the springs 544 on the same side are compressed and contracted by the lower end of the material placing table 52. The guiding columns 543 on the same side pass through the limiting holes 53 on the same side, so that the springs 544 on the same side always apply a downward pressure to the upper end of the fixing rings 542, thereby achieving the effect of pressing and fixing the aluminum alloy plate.

[0043] During the continuous downward movement of the stretching rod 541, the aluminum alloy sheet is stretched. Subsequently, the stretched aluminum alloy sheet will move downward following the stretching rod 541 and pass through a number of stretching rings 57. Under the action of the number of stretching rings 57, secondary stretching of the aluminum alloy sheet is achieved, avoiding the situation where incomplete stretching and forming occur during the first stretching process.

[0044] Embodiment 3. On the basis of Embodiment 2, this embodiment aims to spray cooling oil on the contact surface between the outer surface of the stretching rod 541 and the aluminum alloy sheet.

[0045] Specifically, referring to Figure 2 、 Figure 5 、 Figure 7 and Figure 10 , the oil filling assembly 6 includes a number of hollow rings 62. The left and right middle parts of the front side wall and the left and right middle parts of the rear side wall of the inner surface of the housing 1 are fixedly connected with connecting blocks 61 respectively. The four connecting blocks 61 are fixedly connected with the outer surfaces of the hollow rings 62 on the same side respectively. Four oil outlet grooves 63 are annularly arranged on the inner surfaces of the number of hollow rings 62. The inner surfaces of the four oil outlet grooves 63 on the same side are slidably connected with extrusion blocks 64. The inner surfaces of the number of hollow rings 62 and the ends of the four extrusion blocks 64 on the same side close to each other are jointly fixedly connected with a second spring 65. The middle part of the outer surface of the hollow ring 62 at the frontmost middle part is fixedly connected with an L-shaped oil filling pipe 67. The sides of the number of hollow rings 62 close to each other are fixedly connected with each other through an oil delivery pipe 66. The number of oil delivery pipes 66 is communicated with the inner cavities of the hollow rings 62 on the same side respectively. The L-shaped oil filling pipe 67 is communicated with the inner cavity of the hollow ring 62 on the same side. The outer surface of the L-shaped oil filling pipe 67 penetrates through the rear side wall of the inner surface of the housing 1 and extends to the outside.

[0046] Furthermore, the number of extrusion blocks 64 are all trapezoid-shaped.

[0047] As can be seen from the above, after the stretching rod 541 on the same side drives the formed aluminum alloy sheet to pass through the stretching ring 57 on the same side, when the contact surface between the outer surface of the stretching rod 541 and the aluminum alloy sheet passes through the four extrusion blocks 64 on the same side, since the number of extrusion blocks 64 are all trapezoid-shaped, the four extrusion blocks 64 on the same side will be squeezed into the oil outlet grooves 63 on the same side, and at the same time, the second spring 65 on the same side is squeezed. When the extrusion blocks 64 on the same side enter the inner part of the oil outlet grooves 63 on the same side, the cooling oil in the inner cavity of the connecting block 61 will flow out from the gap generated between the extrusion blocks 64 and the oil outlet grooves 63, and then flow to the contact surface between the outer surface of the stretching rod 541 and the aluminum alloy sheet. By adding cooling oil to the contact surface between the outer surface of the stretching rod 541 and the aluminum alloy sheet, it can be avoided that due to long-term continuous stretching processing, the outer surface of the stretching rod 541 overheats, resulting in cracking during the process of stretching the aluminum alloy sheet and the situation where the aluminum alloy sheet adheres to the outer surface of the stretching rod 541;

[0048] When it is necessary to add cooling oil subsequently, only need to pour the cooling oil from the opening of the L-shaped oil filling pipe 67. Since a number of hollow rings 62 are all connected to each other through the oil conducting pipes 66, and the oil conducting pipes 66 on the same side communicate with the inner cavities of the hollow rings 62 on the same side, therefore, by adding the cooling oil through the L-shaped oil filling pipe 67, the inner cavities of all the hollow rings 62 can be filled with the cooling oil.

[0049] Embodiment 4, on the basis of Embodiment 3, for the purpose of realizing the unified demolding and stacking of the finished products after stretching.

[0050] Specifically, refer to Figure 1 、 Figure 2 、 Figure 5 、 Figure 8 、 Figure 9 and Figure 11 , the scraping component 7 includes a fixing plate 71 fixedly connected to the middle of the front side wall and the rear side wall of the inner surface of the outer shell 1. A number of scraping holes 72 distributed in a linear array are opened at the upper end of the fixing plate 71. Two guiding grooves 73 distributed symmetrically in the front and rear are opened on the inner surfaces of a number of scraping holes 72. Arc-shaped plates 74 are slidably connected to the inner surfaces of the two guiding grooves 73 on the same side. One end of the arc-shaped plates 74 on the same side close to the guiding grooves 73 on the same side is fixedly connected with a third spring 75 together. The scraping component 7 includes a fixing plate 71 fixedly connected to the middle of the front side wall and the rear side wall of the inner surface of the outer shell 1. A number of scraping holes 72 distributed in a linear array are opened at the upper end of the fixing plate 71. Two guiding grooves 73 distributed symmetrically in the front and rear are opened on the inner surfaces of a number of scraping holes 72. Arc-shaped plates 74 are slidably connected to the inner surfaces of the two guiding grooves 73 on the same side. One end of the arc-shaped plates 74 on the same side close to the guiding grooves 73 on the same side is fixedly connected with a third spring 75 together.

[0051] Furthermore, the upper parts of the outer surfaces of a number of arc-shaped plates 74 are all arranged in an arc shape.

[0052] Furthermore, the storage component 8 includes a storage box 81 slidably connected to the bottom wall of the outer shell 1. A number of stacking columns 82 are fixedly connected to the bottom wall of the storage box 81. Stacking grooves 83 are opened at the upper ends of a number of stacking columns 82. A number of sliding grooves 86 penetrating the inner cavity of the storage box 81 are linearly arrayed and opened at the front end of the storage box 81. Push rods 84 are slidably connected to the inner surfaces of a number of sliding grooves 86. A number of push rods 84 are respectively located inside a number of stacking grooves 83 on the same side. A grip 85 is fixedly connected to the front ends of a number of push rods 84 together.

[0053] Furthermore, the number of a number of stacking columns 82 is equal to the number of a number of scraping holes 72, a number of hollow rings 62, a number of stretching rings 57, a number of guiding holes 56, and a number of stretching rods 541.

[0054] Furthermore, the length of a number of stretching rods 541 is greater than the distance from the upper end of the rectangular plate 55 to the lower end of the fixing plate 71.

[0055] As can be seen from the above, the stretching rod 541 can drive the aluminum alloy plate stretched and formed by it to pass through the oil adding assembly 6 to add cooling oil. When the cooling oil is added, the stretching rod 541 continues to move downward. When the stretching rod 541 passes through the scraping holes 72 on the same side, since the upper parts of the outer surfaces of several arc-shaped plates 74 are all arranged in an arc shape, when the stretching rod 541 drives the aluminum alloy plate stretched on its outer surface to pass through the arc-shaped plates 74, the two arc-shaped plates 74 on the same side can be squeezed into the corresponding guide grooves 73. When the upper end of the stretched aluminum alloy plate completely passes through the two arc-shaped plates 74 on the same side, under the action of the third spring 75, the two arc-shaped plates 74 on the same side fit on the outer surface of the stretching rod 541 on the same side. And as can be seen from the above, the lengths of several stretching rods 541 are greater than the distance from the upper end of the rectangular plate 55 to the lower end of the fixed plate 71. Therefore, the maximum stroke of the stretching rod 541 is that the lower end of the stretching rod 541 moves a small distance to the lower end of the fixed plate 71. This process is the stretching process. When demolding is required, only need to control the hydraulic cylinder 4 to drive the stretching assembly 5 to move upward as a whole;

[0056] And the number of several stacking columns 82 is equal to the number of several scraping holes 72, several hollow rings 62, several stretching rings 57, several guide holes 56, and several stretching rods 541. Therefore, when several stretching rods 541 move upward, the lower ends of the arc-shaped plates 74 will scrape the aluminum alloy plate stretched on the outer surface of the stretching rod 541 downward, and the scraped finished products will directly fall into the corresponding stacking columns 82 for primary stacking;

[0057] When the finished products need to be taken out subsequently, only need to pull the storage box 81, and then pull the storage box 81 out from the discharge port opened at the lower part of the front end of the outer shell 1;

[0058] Then hold the handle 85 and then pull upward, several push rods 84 can move upward in the corresponding sliding grooves 86, and several push rods 84 are respectively located inside several stacking grooves 83 on the same side, so that the finished products stacked in the stacking columns 82 can be uniformly pushed upward, facilitating subsequent material taking work.

[0059] The discharge port mentioned above is opened at the lower part of the front end of the outer shell 1 in this solution, and only needs to be in mutual fit with the outer surface of the storage box 81 to ensure the normal pulling out and pushing in process of the storage box 81.

[0060] It should be particularly noted that the specific installation method, circuit connection method, and control method of the hydraulic cylinder 4 adopted in the present invention are all conventional designs, and the present invention will not elaborate in detail.

[0061] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An alloy two-piece can cup punching and stretching device, comprising a housing (1), characterized in that: The front and rear upper ends of the shell (1) are both fixedly connected with baffles (2); the middle parts of the ends of the two baffles (2) that are away from each other are commonly fixedly connected with a concave plate (3); the top wall of the concave plate (3) is fixedly connected with a hydraulic cylinder (4); the ends of the two baffles (2) that are close to each other are commonly slidably mounted with a stretching assembly (5); the upper part of the front side wall of the inner surface of the shell (1) and the upper part of the rear side wall of the inner surface are commonly fixedly mounted with a refueling assembly (6); the middle part of the front side wall of the inner surface of the shell (1) and the middle part of the rear side wall of the inner surface are commonly fixedly mounted with a scraping assembly (7); the lower part of the front end of the shell (1) is provided with a discharge port; and the bottom wall of the shell (1) is slidably mounted with a storage assembly (8).

2. The alloy two-piece can cup punching and stretching device according to claim 1, characterized in that: The stretching assembly (5) comprises a discharge platform (52) on which two ends of the baffles (2) are slidably connected together, the output end of the hydraulic cylinder (4) is fixedly connected to a trapezoidal platform (51) via a piston rod, the lower end of the trapezoidal platform (51) is fixedly connected to the upper end of the discharge platform (52), a plurality of limiting holes (53) are linearly arranged in an array at the upper end of the discharge platform (52), a plurality of fixing assemblies (54) are fixedly installed at the lower end of the discharge platform (52), and the upper edge of the front side wall of the inner surface of the housing (1) is fixedly connected to the upper end of the front side wall. A rectangular plate (55) is fixedly connected to the upper edge of the rear side wall of the inner surface; a plurality of guide holes (56) penetrating the lower end of the rectangular plate (55) are provided in a linear array at the upper end of the rectangular plate (55); a plurality of stretching rings (57) are fixedly connected to the lower end of the rectangular plate (55); a fixing block (58) is fixedly connected to the side where the plurality of stretching rings (57) are close to each other; the fixing blocks (58) located on the left and right sides are fixedly connected to the left side wall and the right side wall of the inner surface of the outer shell (1) respectively.

3. The alloy two-piece can cup punching and stretching device according to claim 2, characterized in that: The plurality of fixed assemblies (54) include a plurality of stretching rods (541) fixedly connected in a linear array to the lower end of the discharge platform (52); the outer surfaces of the plurality of stretching rods (541) are slidably connected to a fixing ring (542); the middle left and right upper ends of the plurality of fixing rings (542) are fixedly connected to a guide column (543); the outer surfaces of the plurality of guide columns (543) are slidably connected to the inner surfaces of the limiting holes (53) on the same side; the middle left and right upper ends of the plurality of fixing rings (542) are fixedly connected to a spring 1 (544); the upper ends of the plurality of spring 1s (544) are fixedly connected to the lower end of the discharge platform (52); and the plurality of spring 1s (544) are respectively located on the outer sides of the guide columns (543) on the same side.

4. The alloy two-piece can cup punching and stretching device according to claim 3, characterized in that: The refueling assembly (6) comprises a plurality of hollow rings (62). The middle portions of the left and right sides of the front side wall of the inner surface of the housing (1) and the middle portions of the left and right sides of the rear side wall of the inner surface are fixedly connected with connection blocks (61). The four connection blocks (61) are respectively fixedly connected with the outer surfaces of the hollow rings (62) on the same side. The inner surfaces of the plurality of hollow rings (62) are provided with four oil outlet grooves (63) in a circular array. The inner surfaces of the four oil outlet grooves (63) on the same side are slidably connected with extrusion blocks (64). The inner surfaces of the plurality of hollow rings (62) are respectively fixedly connected with the outer surfaces of the four extrusion blocks on the same side. (64) are fixedly connected to one end close to each other with a spring 2 (65), and an L-shaped refueling pipe (67) is fixedly connected to the middle of the outer surface of the hollow ring (62) located in the middle of the front side. The sides of several hollow rings (62) close to each other are fixedly connected to each other through oil pipes (66), and several oil pipes (66) are respectively communicated with the inner cavity of the hollow ring (62) on the same side. The L-shaped refueling pipe (67) is communicated with the inner cavity of the hollow ring (62) on the same side, and the outer surface of the L-shaped refueling pipe (67) passes through the rear side wall of the inner surface of the shell (1) and extends to the outside.

5. The alloy two-piece can cup punching and stretching device according to claim 4, characterized in that: The scraper assembly (7) comprises a fixed plate (71) fixedly connected to the middle of the front side wall of the inner surface of the housing (1) and the rear side wall of the inner surface; a plurality of scraper holes (72) distributed in a linear array are provided at the upper end of the fixed plate (71); two guide grooves (73) symmetrically distributed in the front and rear directions are provided on the inner surfaces of the plurality of scraper holes (72); an arc plate (74) is slidably connected to the inner surfaces of the two guide grooves (73) on the same side; and a spring three (75) is fixedly connected to the ends of the arc plate (74) and the guide groove (73) on the same side that are close to each other.

6. The alloy two-piece can cup punching and stretching device according to claim 5, characterized in that: The upper parts of the outer surfaces of the plurality of arc-shaped plates (74) are all arranged in an arc shape.

7. The alloy two-piece can cup punching and stretching device according to claim 5, characterized in that: The material storage assembly (8) comprises a material storage box (81) slidably connected to the bottom wall of the housing (1); a plurality of stacking columns (82) are fixedly connected to the bottom wall of the material storage box (81); a plurality of stacking columns (82) are provided at their upper ends with stacking grooves (83); a plurality of slide grooves (86) penetrating the inner cavity of the material storage box (81) are provided in a linear array at the front end of the material storage box (81); a plurality of push rods (84) are slidably connected to the inner surfaces of the plurality of slide grooves (86); the plurality of push rods (84) are respectively located on the inner sides of the plurality of stacking grooves (83) on the same side; and a handle (85) is fixedly connected to the front ends of the plurality of push rods (84).

8. The alloy two-piece can cup punching and stretching device according to claim 7, characterized in that: The number of the stacking columns (82) is equal to the number of the scraping holes (72), the number of the hollow rings (62), the number of the stretching rings (57), the number of the guide holes (56), and the number of the stretching rods (541).

9. The alloy two-piece can cup punching and stretching device according to claim 8, characterized in that: The lengths of the plurality of stretching rods (541) are greater than the distance from the upper end of the rectangular plate (55) to the lower end of the fixed plate (71).

10. The alloy two-piece can cup punching and stretching device according to claim 4, characterized in that: The plurality of extrusion blocks (64) are arranged in a trapezoidal shape.

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