Alloy two-piece can ender

Abstract

The application discloses alloy two-piece can punch cup stretching device, specifically relates to the technical field of stretching device, including the shell, two the baffle mutually close one end common sliding installation has the stretching assembly, the shell inner surface front side wall upper portion and inner surface rear side wall upper portion common fixed installation has the oiling assembly, the shell inner surface front side wall middle part and inner surface rear side wall middle part common fixed installation has the material scraping assembly, the shell bottom wall sliding installation has the material storage assembly.The alloy two-piece can punch cup stretching device, through the stretching assembly, in the process of stretching of aluminum alloy material, the surface of the plate is pressed, so that the aluminum alloy material is more stable in the stretching process, and secondary stretching can be realized in the stretching process, and the oiling assembly is arranged, the contact surface of the processing device and the aluminum alloy material can be sprayed with cooling oil in the stretching process, so that the material is prevented from adhering to the surface of the processing device due to overheating of the device surface.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of stretching devices, in particular to an alloy two-piece can cup stretching device. BACKGROUND

[0002] The alloy two-piece can cup stretching device is a special equipment for producing metal packaging cans, and is mainly used for processing aluminum alloy or tinplate alloy sheet into seamless can bodies, and the core process comprises two stages of cupping and stretching;

[0003] Firstly, the metal sheet is formed into a cup-shaped blank through stamping; then, the can body is gradually thinned and lengthened through a multi-stage stretching process, and finally a can body with a required shape is formed. The device adopts a high-precision die and an automatic control system to ensure that the can body is uniform in size and smooth in surface, and is suitable for lightweight packaging production in the beverage, food and other industries. The equipment has the characteristics of high efficiency, stability and energy saving, and is one of the key technologies for modern metal packaging manufacturing.

[0004] Chinese Patent No. CN221133725U discloses an alloy two-piece can cup stretching device, which comprises a frame, two outer molds in contact with each other are slidably connected at the center of the inner bottom of the frame, a motor is fixedly installed at the upper end of the frame, a material returning mechanism is arranged in the frame, a hanging plate is arranged on the material returning mechanism, the hanging plate is in contact with the outer mold, a core mold is welded to the lower end of the hanging plate, the core mold is slidably connected with the outer mold, and a mold closing mechanism is arranged on the hanging plate. The above-mentioned patent document drives the hanging plate to move up and down by the motor, so that the connecting rod drives the guide block to slide in the guide groove and the limiting groove, thereby facilitating the clutching control between the two outer molds, making it convenient to separate the formed can body from the outer mold, and avoiding the inconvenience of separating the can body from the outer mold caused by vacuum adsorption.

[0005] The equipment in the above-mentioned patent document can perform stretching forming processing on aluminum alloy during use, but in actual use, it cannot add cooling oil to the device and the surface of the material during stretching, which leads to the cracking of the material during continuous stretching, and lacks a device for uniformly collecting and stacking the finished product, thereby reducing the overall work efficiency. SUMMARY

[0006] The main purpose of the present application is to provide an alloy two-piece can cup stretching device, which can effectively solve the problem that it is difficult to add cooling oil to the device and the surface of the material during stretching in actual use, which leads to the cracking of the material during continuous stretching, and lacks a device for uniformly collecting and stacking the finished product, thereby reducing the overall work efficiency.

[0007] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0008] An alloy two-piece can cup stretching device, comprising a shell, the upper end of the front and the upper end of the rear of the shell are fixedly connected with baffles, the middle of the ends of the two baffles away from each other are fixedly connected with a concave plate, the top wall of the concave plate is fixedly connected with a hydraulic cylinder, the ends of the two baffles close to each other are slidably installed with a stretching assembly, the upper part of the front inner side wall and the upper part of the rear inner side wall of the shell are fixedly installed with a oiling assembly, the middle part of the front inner side wall and the middle part of the rear inner side wall of the shell are fixedly installed with a scraping assembly, the lower part of the front end of the shell is provided with a discharge port, and the bottom wall of the shell is slidably installed with a storage assembly.

[0009] Preferably, the stretching assembly comprises a discharging table slidably connected to the ends of the two baffles close to each other, the output end of the hydraulic cylinder is fixedly connected with a trapezoidal table through a piston rod, the lower end of the trapezoidal table is fixedly connected with the upper end of the discharging table, a plurality of limiting holes are linearly arranged on the upper end of the discharging table, a plurality of fixing assemblies are fixedly installed on the lower end of the discharging table, a rectangular plate is fixedly connected to the edge of the upper part of the front inner side wall and the edge of the upper part of the rear inner side wall of the shell, a plurality of guide holes penetrating through the lower end of the rectangular plate are linearly arranged on the upper end of the rectangular plate, a plurality of stretching rings are fixedly connected to the lower end of the rectangular plate, the side close to each other of the plurality of stretching rings are fixedly connected with fixing blocks, and the fixing blocks on the left side and the right side are fixedly connected with the left inner side wall and the right inner side wall of the shell respectively.

[0010] Preferably, the plurality of fixing assemblies comprise a plurality of stretching rods fixedly connected to the lower end of the discharging table in a linear array, a fixing ring is slidably connected to the outer surface of each of the plurality of stretching rods, a guide column is fixedly connected to the left middle part and the right middle part of the upper end of each of the plurality of fixing rings, the outer surface of each of the plurality of guide columns is slidably connected with the inner surface of the limiting hole on the same side, a spring one is fixedly connected to the left middle part and the right middle part of the upper end of each of the plurality of fixing rings, the upper end of each of the plurality of spring ones is fixedly connected with the lower end of the discharging table, and the plurality of spring ones are respectively located outside the guide column on the same side.

[0011] Preferably, the oiling assembly comprises a plurality of hollow rings, a connecting block is fixedly connected to the left and right middle parts of the front inner side wall and the left and right middle parts of the rear inner side wall of the shell, the outer surface of each of the four connecting blocks is fixedly connected with a hollow ring on the same side, four oil outlet grooves are annularly arranged on the inner surface of each of the plurality of hollow rings, a pressing block is slidably connected to the inner surface of each of the four oil outlet grooves on the same side, a spring two is fixedly connected to the end close to each other of the four pressing blocks on the same side, a L-shaped oiling pipe is fixedly connected to the middle part of the outer surface of the frontmost hollow ring, the side close to each other of the plurality of hollow rings are fixedly connected with each other through an oil pipe, the plurality of oil pipes are respectively communicated with the inner cavities of the hollow rings on the same side, the L-shaped oiling pipe is communicated with the inner cavities of the hollow rings on the same side, and the outer surface of the L-shaped oiling pipe penetrates through the rear inner side wall of the inner surface of the shell and extends to the outside.

[0012] Preferably, the scraping assembly comprises a fixed plate fixedly connected to the middle of the front inner side wall and the rear inner side wall of the shell, a plurality of linearly arranged scraping holes are formed in the upper end of the fixed plate, two front and rear symmetrically arranged guide grooves are formed in the inner surface of each scraping hole, and an arc-shaped plate is slidably connected to the inner surface of each guide groove.

[0013] Preferably, the outer surface of each arc-shaped plate is circularly arranged.

[0014] Preferably, the storage assembly comprises a storage box slidably connected to the bottom wall of the shell, a plurality of stacking columns are fixedly connected to the bottom wall of the storage box, a stacking groove is formed in the upper end of each stacking column, a plurality of linearly arranged sliding grooves are formed in the front end of the storage box and penetrate the inner cavity of the storage box, a push rod is slidably connected to the inner surface of each sliding groove, and a plurality of push rods are arranged on the inner side of each stacking groove, and a handle is fixedly connected to the front end of each push rod.

[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 guide holes and the plurality of stretching rods.

[0016] Preferably, the length of each stretching rod is greater than the distance from the upper end of the rectangular plate to the lower end of the fixed plate.

[0017] Preferably, each extrusion block is in the shape of a trapezoid.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] 1. The stretching assembly is arranged to apply downward pressure to the surface of the aluminum alloy material during stretching, so that the aluminum alloy material is more stable during stretching, and secondary stretching can be achieved during stretching, thereby improving the subsequent forming efficiency of the aluminum alloy material. Meanwhile, the oiling assembly is arranged to spray cooling oil on the contact surface between the processing device and the aluminum alloy material during stretching, thereby preventing the aluminum alloy material from adhering to the surface of the processing device due to overheating of the surface of the processing device after long-term use.

[0020] 2. The scraping assembly is arranged to separate the stretched product from the surface of the processing device after the stretching of the aluminum alloy material is completed, without affecting the subsequent normal stretching process. Meanwhile, the storage assembly is arranged to allow the product to directly fall into the storage assembly for neat stacking when the scraping assembly separates the product, so that the storage assembly can be pulled out after batch production, and the product in the storage assembly can be taken out uniformly, thereby improving the efficiency of taking out the product. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1The overall structure of the present application is shown in the figure.

[0022] Figure 2 The overall structure of the present application is shown in the figure.

[0023] Figure 3 The overall structure of the present application is shown in the figure.

[0024] Figure 4 The overall structure of the present application is shown in the figure.

[0025] Figure 5 The overall structure of the present application is shown in the figure.

[0026] Figure 6 The overall structure of the present application is shown in the figure.

[0027] Figure 7 The overall structure of the present application is shown in the figure.

[0028] Figure 8 The overall structure of the present application is shown in the figure.

[0029] Figure 9 The overall structure of the present application is shown in the figure.

[0030] Figure 10 The overall structure of the present application is shown in the figure. Figure 7 The structure at A in the figure is shown in the figure.

[0031] Figure 11 The structure at B in the figure is shown in the figure. Figure 8 The structure at B in the figure is shown in the figure.

[0032] In the figure: 1, outer shell; 2, baffle; 3, concave plate; 4, hydraulic cylinder; 5, stretching assembly; 51, trapezoidal table; 52, feeding table; 53, limiting hole; 54, fixing assembly; 541, stretching rod; 542, fixing ring; 543, guide column; 544, spring one; 55, rectangular plate; 56, guide hole; 57, stretching ring; 58, fixing block; 6, oiling assembly; 61, connecting block; 62, hollow ring; 63, oil outlet groove; 64, extrusion block; 65, spring two; 66, oil pipe; 67, L-shaped oiling pipe; 7, scraping assembly; 71, fixing plate; 72, scraping hole; 73, guide groove; 74, arc plate; 75, spring three; 8, storage assembly; 81, storage box; 82, stacking column; 83, stacking groove; 84, push rod; 85, handle; 86, sliding groove. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0034] Embodiment One, as shown in Figure 1 and Figure 2 A kind of alloy two-piece can cup stretching device, including shell 1, the upper end front and the upper end rear of shell 1 are fixedly connected with baffle 2, the middle part of the end of the two baffle 2 away from each other is fixedly connected with concave plate 3, the top wall of concave plate 3 is fixedly connected with hydraulic cylinder 4, the end of the two baffle 2 is slidably installed with stretching assembly 5, by being set up stretching assembly 5, in the process of stretching to aluminum alloy material, downward pressure is applied to the surface of plate, so that aluminum alloy material is more stable in the process of stretching, and secondary stretching can be realized in the process of stretching, so as to improve the subsequent forming efficiency of aluminum alloy material;

[0035] The upper part of the inner surface front side wall and the upper part of the inner surface rear side wall of shell 1 are fixedly installed with oiling assembly 6, by being set up oiling assembly 6, the contact surface of processing device and aluminum alloy material can be sprayed with cooling oil in the process of stretching, to avoid the surface of processing device from being overheated and causing aluminum alloy material to adhere to the surface of processing device in long-term use;

[0036] The middle part of the inner surface front side wall and the middle part of the inner surface rear side wall of shell 1 are fixedly installed with material scraping assembly 7, by being set up material scraping assembly 7, after completing stretching processing to aluminum alloy material, the finished product of stretching forming can be separated from the surface of processing device, and subsequent normal stretching processing is not affected;

[0037] The lower part of the front end of shell 1 is provided with discharge port, the bottom wall of shell 1 is slidably installed with material storage assembly 8, by being set up material storage assembly 8, when material scraping assembly 7 peels the finished product, the finished product can directly fall into material storage assembly 8 for neat stacking, after subsequent batch production, material storage assembly 8 can be directly pulled out, and the finished product in material storage assembly 8 is uniformly taken out, convenient and fast operation, and then the efficiency of taking material is improved.

[0038] Embodiment Two, based on embodiment one, to realize secondary stretching to aluminum alloy material during stretching, and the purpose of fixing aluminum alloy material during stretching.

[0039] Specifically, refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6The stretching assembly 5 comprises a discharging table 52 slidably connected to the two baffle plates 2 at one end, a trapezoidal table 51 fixedly connected to the output end of the hydraulic cylinder 4 through a piston rod, the lower end of the trapezoidal table 51 being fixedly connected to the upper end of the discharging table 52, a plurality of limiting holes 53 being linearly arranged on the upper end of the discharging table 52, a plurality of fixed assemblies 54 being fixedly installed on the lower end of the discharging table 52, a rectangular plate 55 being fixedly connected to the upper edge of the front inner side wall and the upper edge of the rear inner side wall of the shell 1, a plurality of guide holes 56 being linearly arranged on the upper end of the rectangular plate 55 and penetrating through the lower end of the rectangular plate 55, a plurality of stretching rings 57 being fixedly connected to the lower end of the rectangular plate 55, and a plurality of fixed blocks 58 being fixedly connected to one side of the stretching rings 57.

[0040] Further, the plurality of fixed assemblies 54 comprises a plurality of stretching rods 541 fixedly connected to the lower end of the discharging table 52, a fixed ring 542 slidably connected to the outer surface of each stretching rod 541, a guide column 543 fixedly connected to the left middle part and the right middle part of the upper end of each fixed ring 542, the outer surface of each guide column 543 being slidably connected to the inner surface of the limiting hole 53 on the same side, a spring 544 fixedly connected to the left middle part and the right middle part of the upper end of each fixed ring 542, the upper end of each spring 544 being fixedly connected to the lower end of the discharging table 52, and each spring 544 being located on the outer side of the guide column 543 on the same side.

[0041] By placing the aluminum alloy plate to be stretched on the upper end of the rectangular plate 55, and then starting the hydraulic cylinder 4, the output end of the hydraulic cylinder 4 drives the trapezoidal table 51 to move downward through the piston rod, and when the trapezoidal table 51 moves downward, the discharging table 52 also moves downward because the upper end of the discharging table 52 is fixedly connected to the lower end of the trapezoidal table 51, and the front end and the rear end of the discharging table 52 are slidably connected to the inner surface of the front side wall and the rear side wall of the baffle plate 2, when the discharging table 52 moves downward, the plurality of stretching rods 541 fixedly connected to the lower end of the discharging table 52 also move downward, and the fixed ring 542 on the outer surface of the stretching rod 541 also moves downward, when the fixed ring 542 contacts the surface of the aluminum alloy plate, the stretching rod 541 can stretch the corresponding aluminum alloy plate at its lower end;

[0042] At the same time, the stretching rod 541 on the same side moves downward in the inner surface of the fixed ring 542, the spring 544 on the same side is squeezed and contracted by the lower end of the discharging table 52, and the guide column 543 on the same side passes through the limiting hole 53 on the same side, so that the spring 544 on the same side always applies downward pressure to the upper end of the fixed ring 542, thereby achieving the effect of pressing and fixing the aluminum alloy plate;

[0043] And in the process of the stretching rod 541 continuously moving downwards, the aluminum alloy plate is stretched, and then the stretched aluminum alloy plate will move downwards along with the stretching rod 541 and pass through a plurality of stretching rings 57, and under the action of the plurality of stretching rings 57, the secondary stretching of the aluminum alloy plate is realized, avoiding the situation that the aluminum alloy plate is not completely stretched during the first stretching process.

[0044] In example three, on the basis of example two, the purpose of spraying cooling oil on the contact surface between the outer surface of the stretching rod 541 and the aluminum alloy plate is achieved.

[0045] Specifically, referring to Figure 2 , Figure 5 , Figure 7 and Figure 10 , the oiling assembly 6 comprises a plurality of hollow rings 62, a connecting block 61 is fixedly connected to the middle part of the left and right sides of the front side wall and the left and right sides of the rear side wall of the inner surface of the shell 1, and the four connecting blocks 61 are fixedly connected to the outer surfaces of the hollow rings 62 on the same side. Four oil outlet grooves 63 are annularly arranged on the inner surfaces of the hollow rings 62, and the same side four oil outlet grooves 63 are slidingly connected with the extrusion blocks 64. The inner surfaces of the plurality of hollow rings 62 are fixedly connected with the same side four extrusion blocks 64 at the end close to each other by the springs 65. The outer surface of the hollow ring 62 at the frontmost side is fixedly connected with the L-shaped oiling pipe 67, and the same side four hollow rings 62 are fixedly connected with each other by the oil pipes 66. The oil pipes 66 are in communication with the inner cavities of the same side hollow rings 62, and the L-shaped oiling pipe 67 is in communication with the inner cavities of the same side hollow rings 62. The outer surface of the L-shaped oiling pipe 67 penetrates the rear side wall of the inner surface of the shell 1 and extends to the outer side.

[0046] Further, the plurality of extrusion blocks 64 are arranged in a trapezoidal shape.

[0047] As can be seen from the above, the stretching rod 541 on the same side drives the aluminum alloy plate to be stretched and formed to pass through the same side stretching ring 57, and when the contact surface between the outer surface of the stretching rod 541 and the aluminum alloy plate passes through the same side four extrusion blocks 64, because the plurality of extrusion blocks 64 are arranged in a trapezoidal shape, the same side four extrusion blocks 64 will be extruded into the same side oil outlet groove 63, and at the same time extrude the same side spring 65. When the same side extrusion block 64 enters the inside of the same side oil outlet groove 63, the cooling oil in the inner cavity of the connecting block 61 will flow out from the gap between the extrusion block 64 and the oil outlet groove 63, and then flow to the contact surface between the outer surface of the stretching rod 541 and the aluminum alloy plate. By adding cooling oil to the contact surface between the outer surface of the stretching rod 541 and the aluminum alloy plate, the situation that the stretching rod 541 is overheated due to long-time continuous stretching processing, which causes the stretching aluminum alloy plate to be stretched and formed, and the aluminum alloy plate to be adhered to the outer surface of the stretching rod 541 can be avoided.

[0048] When the cooling oil needs to be added subsequently, the cooling oil is poured from the opening of the L-shaped oil filling pipe 67. Since the hollow rings 62 are connected to each other through the oil pipes 66, and the oil pipes 66 on the same side are communicated with the inner cavities of the hollow rings 62 on the same side, the cooling oil can be added through the L-shaped oil filling pipe 67, so that the inner cavities of all the hollow rings 62 are filled with the cooling oil.

[0049] In the fourth embodiment, the unified demolding and stacking of the finished product after stretching is achieved based on the third embodiment.

[0050] Specifically, referring to Figure 1 , Figure 2 , Figure 5 , Figure 8 , Figure 9 and Figure 11 , the scraping assembly 7 includes a fixed plate 71 fixedly connected to the middle part of the front inner side wall and the rear inner side wall of the shell 1. A plurality of scraping holes 72 are linearly arranged on the upper end of the fixed plate 71. Two guide grooves 73 are symmetrically arranged on the inner surface of each scraping hole 72. An arc-shaped plate 74 is slidably connected to the inner surface of each guide groove 73 on the same side. A spring 75 is fixedly connected to the end of each arc-shaped plate 74 on the same side and the end of each guide groove 73 on the same side.

[0051] Further, the outer surface of each arc-shaped plate 74 is circularly arranged on the upper end.

[0052] Further, the storage assembly 8 includes a storage box 81 slidably connected to the bottom wall of the shell 1. A plurality of stacking columns 82 are fixedly connected to the bottom wall of the storage box 81. A stacking groove 83 is arranged on the upper end of each stacking column 82. A plurality of sliding grooves 86 are linearly arranged on the front end of the storage box 81 and penetrate the inner cavity of the storage box 81. A push rod 84 is slidably connected to the inner surface of each sliding groove 86. The front end of each push rod 84 is fixedly connected to a handle 85.

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

[0054] Further, the length of each stretching rod 541 is greater than the distance from the upper end of the rectangular plate 55 to the lower end of the fixed plate 71.

[0055] As known from the above, the stretching rod 541 can drive the aluminum alloy plate material stretched and formed thereby to pass through the oil adding assembly 6 to add cooling oil. When the adding of the cooling oil is completed, the stretching rod 541 continues to move downward. When the stretching rod 541 passes through the same side scraping hole 72, since the upper outer surfaces of the several arc-shaped plates 74 are all arranged in a circular arc shape, when the aluminum alloy plate material stretched and formed by the stretching rod 541 passes through the arc-shaped plate 74, the two arc-shaped plates 74 on the same side can be squeezed into the corresponding guide groove 73. When the upper end of the aluminum alloy plate material stretched and formed passes through the two arc-shaped plates 74 on the same side, under the action of the spring 75, the two arc-shaped plates 74 on the same side are attached to the outer surface of the stretching rod 541 on the same side. As known from the above, the lengths of the 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 to the lower end of the fixed plate 71 by a small distance. This process is the stretching process. When demolding is needed, the stretching assembly 5 as a whole is only needed to be controlled to move upward by the hydraulic cylinder 4.

[0056] Furthermore, the number of the several stacking columns 82 is equal to the number of the several scraping holes 72, the several hollow rings 62, the several stretching rings 57, the several guide holes 56 and the several stretching rods 541. Therefore, when the several stretching rods 541 move upward, the lower end of the arc-shaped plate 74 can scrape the aluminum alloy plate material stretched and formed on the outer surface of the stretching rod 541 downward, and the finished product material scraped off can directly fall into the corresponding stacking column 82 to be stacked once.

[0057] When the finished product material needs to be taken out subsequently, the storage box 81 is only needed to be pulled out, and then the storage box 81 is pulled out from the discharge port opened at the lower end of the front end of the shell 1.

[0058] Then, the handle 85 is held and pulled upward, so that the several push rods 84 can move upward in the corresponding sliding groove 86, and the several push rods 84 are located inside the several stacking grooves 83 on the same side, so that the finished product material stacked in the stacking column 82 can be pushed out upward, which is convenient for the subsequent taking work.

[0059] The discharge port in the above is opened at the lower end of the front end of the shell 1 in the present scheme, and only needs to meet the mutual attachment with the outer surface of the storage box 81, so as to ensure the normal pulling-out and pushing-in process of the storage box 81.

[0060] It needs to be particularly pointed out that the specific installation mode of the hydraulic cylinder 4, the connection mode of the circuit and the control method all belong to the conventional design, and the present application will not be described in detail.

[0061] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A two-piece alloy cup-stamping and stretching device, comprising a housing (1), characterized in that: The upper front and upper rear of the outer shell (1) are fixedly connected to baffles (2), and the middle of the two baffles (2) at their far ends are fixedly connected to a concave plate (3). The top wall of the concave plate (3) is fixedly connected to a hydraulic cylinder (4). The two baffles (2) at their close ends are slidably installed with a tensioning component (5). The upper part of the front side wall and the upper part of the rear side wall of the inner surface of the outer shell (1) are fixedly installed with an oiling component (6). The middle part of the front side wall and the middle part of the rear side wall of the inner surface of the outer shell (1) are fixedly installed with a scraping component (7). The lower part of the front end of the outer shell (1) is provided with a discharge port. The bottom wall of the outer shell (1) is slidably installed with a material storage component (8). The stretching assembly (5) includes a feeding platform (52) where the two baffles (2) are slidably connected at their close ends. 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 feeding platform (52). The upper end of the feeding platform (52) is provided with a plurality of limiting holes (53) arranged in a linear array. The lower end of the feeding platform (52) is fixedly installed with a plurality of fixing components (54). The upper edge of the front sidewall of the inner surface of the outer shell (1) is located at... A rectangular plate (55) is fixedly connected to the upper edge of the rear side wall of the inner surface. The upper end of the rectangular plate (55) has a number of guide holes (56) that penetrate the lower end of the rectangular plate (55) in a linear array. The lower end of the rectangular plate (55) is fixedly connected to a number of tension rings (57). The sides of the tension rings (57) that are close to each other are fixedly connected to a fixing block (58). 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. The fixing components (54) include a plurality of tension rods (541) linearly arrayed and fixedly connected to the lower end of the feeding platform (52). The outer surfaces of the plurality of tension rods (541) are slidably connected to fixing rings (542). The middle left and middle right sides of the upper ends of the plurality of fixing rings (542) are fixedly connected to guide posts (543). The outer surfaces of the plurality of guide posts (543) are slidably connected to the inner surfaces of the limiting holes (53) on the same side. The middle left and middle right sides of the upper ends of the plurality of fixing rings (542) are fixedly connected to springs (544). The upper ends of the plurality of springs (544) are fixedly connected to the lower end of the feeding platform (52). The plurality of springs (544) are located on the outer side of the guide posts (543) on the same side. The refueling component (6) includes several hollow rings (62). Connecting blocks (61) are fixedly connected to the middle of the left and right sides of the front sidewall of the inner surface of the outer shell (1) and the middle of the left and right sides of the rear sidewall of the inner surface. The four connecting blocks (61) are fixedly connected to the outer surface of the hollow rings (62) on the same side. The inner surface of the several hollow rings (62) is provided with four oil outlet grooves (63) in a circular array. The inner surface of the four oil outlet grooves (63) on the same side is slidably connected to the squeezing blocks (64). The inner surface of the several hollow rings (62) is connected to the four squeezing blocks on the same side. (64) A spring (65) is fixedly connected to one end of each other. An L-shaped refueling pipe (67) is fixedly connected to the middle of the outer surface of the hollow ring (62) located at the front middle. Several hollow rings (62) are fixedly connected to each other on the side of each other through oil pipes (66). Several oil pipes (66) are respectively connected to the inner cavity of the hollow ring (62) on the same side. The L-shaped refueling pipe (67) is connected to the inner cavity of the hollow ring (62) on the same side. The outer surface of the L-shaped refueling pipe (67) penetrates the rear side wall of the inner surface of the outer shell (1) and extends to the outside.

2. The alloy two-piece can-stamping cup stretching device according to claim 1, characterized in that: The scraping assembly (7) includes a fixing plate (71) that is fixedly connected to the middle of the front side wall of the inner surface of the outer shell (1) and the rear side wall of the inner surface. The upper end of the fixing plate (71) is provided with a plurality of scraping holes (72) arranged in a linear array. The inner surface of each of the scraping holes (72) is provided with two guide grooves (73) that are symmetrically distributed front and back. The inner surfaces of the two guide grooves (73) on the same side are slidably connected with arc plates (74). The ends of the arc plates (74) and the guide grooves (73) on the same side that are close to each other are fixedly connected with springs (75).

3. The alloy two-piece can-stamping cup stretching device according to claim 2, characterized in that: The upper part of the outer surface of several of the arc-shaped plates (74) is arranged in an arc shape.

4. The alloy two-piece can-stamping cup stretching device according to claim 2, characterized in that: The storage assembly (8) includes a storage box (81) slidably connected to the bottom wall of the outer shell (1). A plurality of stacking columns (82) are fixedly connected to the bottom wall of the storage box (81). A stacking groove (83) is opened at the upper end of each of the stacking columns (82). A plurality of sliding grooves (86) penetrating the inner cavity of the storage box (81) are linearly arrayed at the front end of the storage box (81). A push rod (84) is slidably connected to the inner surface of each of the sliding grooves (86). The push rods (84) are located inside the stacking grooves (83) on the same side. A handle (85) is fixedly connected to the front end of each push rod (84).

5. The alloy two-piece can-stamping cup stretching device according to claim 4, characterized in that: The number of the stacking posts (82) is equal to the number of the scraper holes (72), the number of hollow rings (62), the number of tension rings (57), the number of guide holes (56), and the number of tension rods (541).

6. The alloy two-piece can-stamping cup stretching device according to claim 5, characterized in that: The length of some of the tension rods (541) is greater than the distance from the upper end of the rectangular plate (55) to the lower end of the fixed plate (71).

7. The alloy two-piece can-stamping cup stretching device according to claim 1, characterized in that: Several of the extrusion blocks (64) are arranged in a trapezoidal shape.

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