Metal can punching and hinge part die and metal can hinge part processing device

Abstract

This utility model belongs to the field of metal can processing technology, and particularly relates to a metal can hinge-cutting mold and a metal can hinge-cutting device. The metal can hinge-cutting mold includes a lower mold, an upper mold, an upper mold fixing block, and a hinge-cutting shearing mechanism. The lower mold has a lower can body limiting groove at its top. The upper mold is located above the lower mold. The upper mold has a horizontally penetrating shearing mounting cavity and a vertically penetrating and parallelly arranged first and second punching holes at its top. The lower mold has a can body limiting groove located around the first punching hole at its bottom. The can body limiting groove and the lower can body limiting groove together limit the can body. The hinge-cutting shearing mechanism is installed in the shearing mounting cavity and extends through the first and second punching holes to perform hinge-cutting on the can body. The upper mold fixing block covers the top of the upper mold to prevent the hinge-cutting mechanism from disengaging. The entire hinge-cutting process has fewer steps, higher production efficiency, and consistent punching quality for each operation.

Description

Technical Field

[0001] This utility model belongs to the field of metal can processing technology, and in particular relates to a metal can punching hinge mold and a metal can hinge processing device. Background Technology

[0002] Metal cans are a common type of food container, usually made of metal materials such as iron, aluminum, and stainless steel. They are widely used because of their sturdy structure, corrosion resistance, and airtightness, which can protect food from the influence of the external environment. Examples include common chewing gum jars and mint jars.

[0003] These metal cans for packaging candy typically have an openable lid, which is usually hinged to the can body on one side by a pin, facilitating opening and closing. Based on this design, a hinge point needs to be formed on the side of the can body for the pin to pass through and for hinged to the lid. This hinge point is a strip-shaped structure, with an inward convex section in the middle and outward convex sections at both ends. The inward and outward convex sections are staggered to form an opening for the pin to pass through and hinge with the lid.

[0004] Because of the irregularity of this structure, multiple tools are needed to carry out multiple steps in the current production and processing, making it difficult to achieve high-efficiency and high-quality automated production. Utility Model Content

[0005] The purpose of this utility model is to provide a metal can punching hinge mold and a metal can hinge processing device, which aims to solve the technical problems of low production efficiency and the need to optimize production quality caused by the need for multiple tools and multiple steps in the processing of hinge parts of the can body in the prior art.

[0006] To achieve the above objectives, this utility model provides a metal can punching hinge position mold, including a lower mold, an upper mold, an upper mold fixing block, and a hinge shearing mechanism. The lower mold has a can body lower limiting groove at its top. The upper mold is positioned above the lower mold. The upper mold has a horizontally penetrating shearing mounting cavity and a vertically penetrating and parallelly arranged first and second punching holes at its top. The lower mold has a can body limiting groove located around the first punching hole at its bottom. The can body limiting groove and the can body lower limiting groove together limit the upper and lower ends of the can body. The hinge shearing mechanism is installed in the shearing mounting cavity and extends through the first and second punching holes to punch the can body at the hinge position. The upper mold fixing block covers the top of the upper mold to prevent the hinge shearing mechanism from exiting the shearing mounting cavity.

[0007] This utility model embodiment also provides a metal can hinge processing device, which includes a lower template, an upper template, a polygonal guide post, a polygonal guide sleeve, and the aforementioned metal can hinge punching mold. The lower mold is installed on the top of the lower template and moves up and down driven by the lower template. The upper mold is installed on the bottom of the upper template and moves up and down driven by the lower template. The polygonal guide sleeve is installed in the upper template. The polygonal guide post passes through the polygonal guide sleeve and is slidably connected to it. The upper mold fixing block is connected to the bottom of the polygonal guide post and moves up and down driven by the polygonal guide post. As the lower template moves down, it can press against the hinge shearing mechanism to punch the hinge part of the can body.

[0008] The metal can hinge die and metal can hinge processing device provided in this utility model embodiment have at least one of the following technical effects: The technical solution of this utility model limits the upper and lower ends of the can body by providing a lower limiting groove on the top of the lower die and a upper limiting groove on the bottom of the upper die. Furthermore, a hinge shearing mechanism is installed in the shearing cavity of the upper die, and this hinge shearing mechanism achieves sealing and limiting through an upper die fixing block fixed to the upper die. Since the hinge shearing mechanism can pass through the first punching hole and enter the can body, when subjected to external force, it can perform hinge punching on the can body, that is, punching the side of the can body at the position where it passes through the first and second punching holes, forming a hinge position on the side of the can body. The entire hinge punching process has fewer steps, higher production efficiency, and consistent punching quality, resulting in good production quality. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a structural diagram of the tank body that requires machining of the hinged joint.

[0011] Figure 2 Another structural diagram of the tank body that requires machining of the hinged joint.

[0012] Figure 3 A first-view structural schematic diagram of the metal can hinge position processing device provided for the embodiments of this utility model.

[0013] Figure 4A second-view structural schematic diagram of the metal can hinge position processing device provided for an embodiment of this utility model.

[0014] Figure 5 A third-view structural schematic diagram of the metal can hinge processing device provided for an embodiment of this utility model.

[0015] Figure 6 A fourth-view structural schematic diagram of the metal can hinge position processing device provided for the embodiments of this utility model.

[0016] Figure 7 A first-view structural schematic diagram of the metal can punching hinge die provided for an embodiment of this utility model.

[0017] Figure 8 A second-view structural schematic diagram of the metal can punching hinge die provided for an embodiment of this utility model.

[0018] Figure 9 A third-view structural schematic diagram of the metal can punching hinge die provided for an embodiment of this utility model.

[0019] Figure 10 This is a first-view exploded view of the metal can punching hinge die provided for an embodiment of the present utility model.

[0020] Figure 11 This is a second-view exploded view of the metal can punching hinge die provided for an embodiment of the present utility model.

[0021] Figure 12 A first-view structural schematic diagram of the arrangement of multiple can body clamping mechanisms in the metal can hinge position processing device provided for the embodiments of this utility model.

[0022] Figure 13 for Figure 12 A magnified schematic diagram of the structure at point A in the middle.

[0023] Figure 14 A second-view structural schematic diagram of the arrangement of multiple can body clamping mechanisms in the metal can hinge position processing device provided for the embodiments of this utility model.

[0024] Figure 15 A schematic diagram of the rotating disk of the metal can hinge position processing device provided for the embodiments of this utility model.

[0025] Figure 16 A schematic diagram of the can body clamping mechanism of the metal can hinge position processing device provided for the embodiments of this utility model.

[0026] Figure 17A schematic diagram of the structure of the fixed cam in the metal can hinge position processing device provided for the embodiments of this utility model.

[0027] Figure 18 A schematic diagram showing the connection between the rotary disk, fixed cam, and cam divider of the metal can hinge processing device provided in this embodiment of the utility model.

[0028] Figure 19 An exploded view of the rotary disk, fixed cam, and cam divider of the metal can hinge processing device provided in this embodiment of the utility model.

[0029] The following are the labeling elements in the figure:

[0030] 10-Lower formwork; 20-Upper formwork; 21-Rigid stainless steel sheet

[0031] 30-Polygonal guide post; 40-Polygonal guide sleeve; 50-Metal can punching hinge die

[0032] 51-Lower mold 52-Upper mold 53-Upper mold fixing block

[0033] 54-Hinge shearing mechanism; 60-Tank body clamping mechanism; 61-Front end block

[0034] 62-Left trapezoidal block; 63-Right trapezoidal block; 64-Rear end block

[0035] 65-Clamping cavity 70-Rotating disk 71-Modible hole

[0036] 72-Radial guide seat; 73-Lateral guide seat; 74-Tension spring

[0037] 80-Fixed cam; 81-Annular curved groove; 90-Drive mechanism

[0038] 91-Motor 92-Lower crankshaft 93-Lower crank connecting rod

[0039] 94--Upper crankshaft; 95--Upper crank connecting rod; 96--Crankshaft cam

[0040] 97-Cam bearing cage; 98-First belt drive assembly; 99-Second belt drive assembly

[0041] 100-Cam divider; 101-Rotating flange; 102-Fixed flange

[0042] 200 - Tank body 201 - Hinge joint 511 - Lower limit groove of tank body

[0043] 521 - Limiting groove on the tank body; 522 - Shear mounting cavity; 523 - First punching hole

[0044] 524 - Second punching hole; 541 - First shearing rod; 542 - Second shearing rod

[0045] 543 - First spring; 544 - Second spring; 545 - Concave punch.

[0046] 546 - Convex punch; 621 - Left guide block; 631 - Right guide block

[0047] 641 - Radial guide block; 642 - Guide bearing; 971 - Cage bearing

[0048] 981 - First transmission belt; 982 - First lower pulley; 983 - First upper pulley

[0049] 991 - Second transmission belt; 5411 - First swing arm; 5412 - First force-bearing arm

[0050] 5413 - First shear arm; 5414 - First convex arc portion; 5415 - First concave arc portion

[0051] 5421 - Second swing arm; 5422 - Second force-bearing arm; 5423 - Second shear arm

[0052] 5424 - Second convex arc portion; 5425 - Second concave arc portion. Detailed Implementation

[0053] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0054] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0056] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0057] In one embodiment of this utility model, such as Figures 7-9 As shown, a metal can punching and shearing die 50 is provided, including a lower die 51, an upper die 52, an upper die fixing block 53, and a shearing mechanism 54. The lower die 51 has a lower can body limiting groove 511 at its top. The upper die 52 is disposed above the lower die 51. The upper die 52 has a horizontally penetrating shearing mounting cavity 522 and a vertically penetrating and side-by-side first punching hole 523 and a second punching hole 524 at its top. The lower die 52 has a can body limiting groove 521 located around the first punching hole 523 at its bottom. The can body limiting groove 521 and the lower can body limiting groove 511 are used together to limit the can body 200 (see Figures 1-2 At the upper and lower ends of the can body 200, the hinge shearing mechanism 54 is installed in the shearing mounting cavity 522, and passes through the first punching hole 523 and the second punching hole 524 respectively for punching the hinge position 201 of the can body 200 (see Figure 1 ~~2), the upper mold fixing block 53 covers the top of the upper mold 52 to restrict the hinge shearing mechanism 54 from disengaging from the shearing mounting cavity 522. The hinge shearing mechanism 54 is a pliers or scissors type structure, with two parts passing through the first punching hole 523 and the second punching hole 524 respectively. Since the first punching hole 523 corresponds to the can body 200 located between the upper limiting groove 521 and the lower limiting groove 511, this part of the structure can extend into the can body 200, while the other part is outside the can body 200. When the pliers or scissors type hinge shearing mechanism 54 is closed by force, it can punch out a hinge position 201 on the side of the can body 200.

[0058] In the metal can punching hinge die 50 of this utility model embodiment, the lower and upper ends of the can body 200 are limited by the can body lower limiting groove 511 provided at the top of the lower die 51 and the can body upper limiting groove 521 provided at the bottom of the upper die 52. Furthermore, a hinge shearing mechanism 54 is installed in the shearing mounting cavity 522 in the upper die 52, and this hinge shearing mechanism 54 is sealed and limited by the upper die fixing block 53 connected and fixed to the upper die 52. Since the hinge shearing mechanism 54 can enter the can body 200 through the first punching hole 523, when it is subjected to external force, it can punch the hinge position 201 of the can body 200, that is, punch the side of the can body 200 at the position where it exits the first punching hole 523 and the second punching hole 524, forming the hinge position 201 on the side of the can body 200. The entire hinge position 201 punching process has few steps, high production efficiency, and consistent punching quality, resulting in good production quality.

[0059] In one embodiment of this utility model, such as Figures 10-11 As shown, the hinged shearing mechanism 54 includes a first shearing rod 541, a second shearing rod 542, a first spring 543, a second spring 544, and a cooperating concave punch 545 and a convex punch 546.

[0060] Furthermore, such as Figures 10-11 As shown, the first shearing rod 541 includes a first swing arm 5411, a first force-bearing arm 5412, and a first shear arm 5413. The first force-bearing arm 5412 and the first shear arm 5413 are respectively connected to the two ends of the first swing arm 5411 and extend in opposite directions. The second shearing rod 542 includes a second swing arm 5421, a second force-bearing arm 5422, and a second shear arm 5423. The second force-bearing arm 5422 and the second shear arm 5423 are respectively connected to the two ends of the second swing arm 5421 and extend in opposite directions. That is, both the first shearing rod 541 and the second shearing rod 542 are approximately Z-shaped.

[0061] Furthermore, such as Figures 10-11As shown, the connection between the first shear arm 5413 and the first swing arm 5411 is provided with a first convex arc portion 5414 and a first concave arc portion 5415 arranged side by side, and the connection between the second shear arm 5423 and the second swing arm 5421 is provided with a second convex arc portion 5424 and a second concave arc portion 5425 arranged side by side; the second convex arc portion 5424 cooperates with the first concave arc portion 5415, the second concave arc portion 5425 cooperates with the first convex arc portion 5414, and after passing through the first convex arc portion 5414 and the second convex arc portion 5424 via a pivot, it is hinged in the shear mounting cavity 522. The first shearing rod 541 and the second shearing rod 542 formed by such a combination are similar to pliers or scissors. When the pivot is taken as the axis, because of the cooperation between the second convex arc portion 5424 and the first concave arc portion 5415, and the cooperation between the second concave arc portion 5425 and the first convex arc portion 5414, the two can rotate at the cooperation position without interference.

[0062] Furthermore, such as Figures 10-11As shown, the first shear arm 5413 extends through the first punching hole 523, the concave punch 545 is installed on the side of the first shear arm 5413, the second shear arm 5423 extends through the second punching hole 524, the convex punch 546 is installed on the side of the second shear arm 5423 and is arranged facing the concave punch 545, the first spring 543 is connected between the first swing arm 5411 and the bottom surface of the shear mounting cavity 522, and the second spring 544 is connected between the second swing arm 5421 and the bottom surface of the shear mounting cavity 522. Under the elastic support force of the first spring 543 and the second spring 544, the first shear arm 5413 and the second shear arm 5423 are in the normally open state. When the top of the first force arm 5412 and the second force arm 5422 are subjected to pressure, the first swing arm 5411 and the second swing arm 5421 are forced to swing around the pivot, so that the first swing arm 5411 and the second swing arm 5421 compress the first spring 543 and the second spring 544 respectively until the first shear arm 5413 and the second shear arm 5423 are closed. At this time, the concave punch 545 and the convex punch 546 cooperate to punch out the hinge position 201 on the tank body 200. When the pressure applied to the top of the first force arm 5412 and the second force arm 5422 is removed, the first spring 543 and the second spring 544 will support the first swing arm 5411 and the second swing arm 5421 respectively, so that they continue to rotate around the pivot, thereby opening the first shear arm 5413 and the second shear arm 5423, waiting to punch the hinge position 201 of the next can body 200. The structural design is very ingenious. After the can body 200 is positioned, the punching of the hinge position 201 of the can body 200 can be completed in one step, which is highly efficient and of high quality.

[0063] Combination Figures 3-6As shown in the figure, this utility model embodiment also provides a metal can hinge processing device, which includes a lower template 10, an upper template 20, a polygonal guide post 30, a polygonal guide sleeve 40, and the aforementioned metal can hinge punching mold 50. The lower mold 51 is installed on the top of the lower template 10 and moves up and down by the drive of the lower template 10. The upper mold 52 is installed on the bottom of the upper template 20 and moves up and down by the drive of the lower template 10. The polygonal guide sleeve 40 is installed in the upper template 20. The polygonal guide post 30 passes through the polygonal guide sleeve 40 and is slidably connected to it. The upper mold fixing block 53 is connected to the bottom of the polygonal guide post 30 and moves up and down by the drive of the polygonal guide post 30. As the lower template 10 moves down, it can press against the hinge shearing mechanism 54 to punch the hinge position 201 of the can body 200. Specifically, the lower template 10 is used to install the lower mold 51, and the upper template 20 is used to install the upper mold 52, as well as the polygonal guide post 30 and polygonal guide sleeve 40 that slide together. Thus, driving the lower template 10 moves the lower mold 51, and driving the upper template 20 moves the upper mold 52, the polygonal guide post 30, and the polygonal guide sleeve 40. This allows the lower mold 51 to be moved to position the tank body 200, and the upper mold 52 to be moved simultaneously, causing the polygonal guide post 30 to move with it. After the polygonal guide post 30, through the upper mold 52 fixing plate, positions the tank body 200, the upper template 20 can continue to move until it applies a pressure force to the hinge shearing mechanism 54, thereby punching the hinge position 201 of the tank body 200. The polygonal guide post 30 can be a hexagonal guide post, and the hexagonal guide sleeve can also be a hexagonal guide post.

[0064] In one embodiment of this utility model, such as Figure 5 As shown, a rigid stainless steel plate 21 is provided at the bottom of the upper template 20. When the lower template 10 moves downwards, the rigid stainless steel plate 21 is used to press against the hinge shearing mechanism 54. Specifically, the rigid stainless steel plate 21 has high hardness. After the upper template 52 moves downwards, the rigid stainless steel plate 21 contacts the hinge shearing mechanism 54, and as it continues to move downwards, pressure is applied to the hinge shearing mechanism 54. This prevents the hinge shearing mechanism 54 from cutting the hinge position 201 of the tank body 200, thus minimizing damage to the upper template 20, increasing its service life, and allowing the rigid stainless steel plate 21 to be replaced.

[0065] In one embodiment of this utility model, such as Figures 12-13As shown in Figure 16, the metal can hinge processing device further includes a can body clamping mechanism 60, which is used to clamp and position the outer periphery of the can body 200, which is limited between the upper mold 52 and the lower mold 51. The can body clamping mechanism 60 includes a front end block 61, a left trapezoidal block 62, a right trapezoidal block 63, and a rear end block 64. The front end block 61, the left trapezoidal block 62, the rear end block 64, and the right trapezoidal block 63 are sequentially arranged to form a clamping cavity 65 for clamping the can body 200. The front end block 61 and the rear end block 64 respectively engage with the inclined surfaces at both ends of the left trapezoidal block 62 and the right trapezoidal block 63. When the rear end block 64 is forced to move towards the front end block 61, the inclined surfaces allow the left trapezoidal block 62 and the right trapezoidal block 63 to move towards each other to clamp the can body 200 located in the clamping cavity 65. Specifically, when a force is applied to the rear end block 64, because the inner side of the rear end block 64 is engaged with the left trapezoidal block 62 and the right trapezoidal block 63 on an inclined plane, the left trapezoidal block 62 and the right trapezoidal block 63 are forced to move inward. Thus, the left trapezoidal block 62 and the right trapezoidal block 63 clamp the tank body 200 on the left and right sides respectively, and clamp the tank body 200 through the front end block 61 and the rear end block 64 on the front and rear sides, thus completing the clamping and positioning of the outer four sides of the tank body 200.

[0066] In one embodiment of this utility model, such as Figure 12 , 14 As shown in Figures 15, 17, and 19, the metal can hinge processing device further includes a rotary disk 70 and a fixed cam 80. The rotary disk 70 is located between the lower mold 51 and the upper mold 52. The rotary disk 70 is provided with a movable hole 71 through which the can body clamping mechanism 60 passes. The design of the movable hole 71 provides space for the movement of the left trapezoidal block 62, the right trapezoidal block 63, and the rear end block 64, and also provides space for accommodating the can body 200. The front end block 61 is fixed on the rotating disk 70. A radial guide seat 72 is also provided on the rotating disk 70 near the rear end block 64. A radial guide block 641 extends from the rear end block 64, passes through and slides with the radial guide seat 72. The function of the radial guide block 641 passing through the radial guide seat 72 is to ensure that the radial guide block 641 can move back and forth in a single direction (radial) under the limitation of the radial guide seat 72, so as to realize the change control of the size of the clamping cavity 65 jointly enclosed by the front end block 61, the left trapezoidal block 62, the rear end block 64 and the right trapezoidal block 63.

[0067] Further, see Figure 14 and 16The radial guide block 641 has a guide bearing 642 at its end. The fixed cam 80 is fixed above the rotating disk 70, and the bottom of the fixed cam 80 has an annular curved groove 81. The guide bearing 642 is accommodated in the annular curved groove 81. The rotation of the rotating disk 70 drives the guide bearing 642 to rotate along the annular curved groove 81. The pressure applied to the guide bearing 642 by the annular curved groove 81 forces the radial guide block 641 to slide along the radial guide seat 72, thereby driving the rear end block 64 towards the front end block 61. That is, when the rotating disk 70 rotates, it drives all components mounted on it to rotate, including the can body clamping mechanism 60, which rotates with the rotating disk 70. While the rotating disk 70 rotates, the fixed cam 80 remains stationary. This is because the annular curved groove 81 at the bottom of the fixed cam 80 houses the guide bearing 642 located at the end of the radial guide block 641. As the circumference rotates, the guide bearing 642 contacts the annular curved groove 81, causing its diameter to change. During this change, the radial guide block 641 slides back and forth in the radial guide seat 72. This process causes the size of the clamping cavity 65 to change, thereby clamping or releasing the can body 200.

[0068] In one embodiment of this utility model, such as Figures 12-14As shown, multiple can-body clamping mechanisms 60 are provided, and each can-body clamping mechanism 60 is arranged radially around the center of the rotating disk 70. A lateral guide seat 73 located on the rotating disk 70 is provided between the left trapezoidal block 62 and the right trapezoidal block 63 of two adjacent can-body clamping mechanisms 60. A left guide block 621 and a right guide block 631 extend from the left trapezoidal block 62 and the right trapezoidal block 63, respectively, and slide in cooperation with the lateral guide seat 73. Adjacent left guide blocks 621 and right guide blocks 631 are connected by a tension spring 74. Specifically, the purpose of arranging multiple radially arranged can-body clamping mechanisms 60 in a ring on a rotating disk 70 is to enable the clamping of multiple can bodies 200 during continuous operation and to clamp the can bodies 200 to different workstations for processing. The left guide block 621 and right guide block 631 are inserted into the lateral guide seat 73 to restrict their movement to the lateral direction only. This allows the left trapezoidal block 62 and right trapezoidal block 63 to either clamp or release the left and right sides of the can body 200. When the radial guide block 641 causes the rear end block 64 to release its clamping of the can body 200, the inclined surface and the tension spring 74 quickly cause the left trapezoidal block 62 and right trapezoidal block 63 to release their clamping of the left and right sides of the can body 200. The structural design is extremely ingenious.

[0069] In one embodiment of this utility model, such as Figures 4-5 As shown in Figures 18 and 19, the metal can hinge processing device further includes a cam divider 100. The cam divider 100 is provided with a rotating flange 101 on the outer ring and a fixed flange 102 on the inner ring. The rotating disk 70 is fixedly connected to the rotating flange 101, and the fixed cam 80 is fixedly connected to the fixed flange 102. Specifically, when the cam divider 100 is powered, the rotating flange 101 on its outer ring can rotate, thereby driving the rotating disk 70 fixed to it to rotate. The fixed cam 80 on the fixed flange 102 on the inner ring remains fixed, thus allowing the rotating disk 70 to rotate relative to the fixed cam 80.

[0070] In one embodiment of this utility model, such as Figures 3-6 As shown, the metal can hinge processing device further includes a drive mechanism 90, which includes a motor 91, a lower crankshaft 92, a lower crank connecting rod 93, an upper crankshaft 94, an upper crank connecting rod 95, a crankshaft cam 96, a cam bearing cage 97, a first belt drive assembly 98, and a second belt drive assembly 99.

[0071] Furthermore, such as Figures 3-6As shown, the lower crankshaft 92 is located below the lower template 10, and the upper crankshaft 94 is located above the upper template 20. One end of the lower crankshaft 92 and one end of the upper crankshaft 94 are connected by the first belt drive assembly 98. The lower crankshaft 92 is also connected to the input shaft of the cam divider 100 through the second belt drive assembly 99. The main shaft of the motor 91 is connected to the other end of the lower crankshaft 92.

[0072] Furthermore, such as Figures 3-6 As shown, the lower crank connecting rod 93 is connected between the lower crankshaft 92 and the lower template 10, the upper crank connecting rod 95 is connected between the upper crankshaft 94 and the upper template 20, the crankshaft cam 96 is connected to the upper crankshaft 94, the cam bearing cage 97 is mounted and fixed on the upper part of the polygonal guide post 30, and the cam bearing cage 97 is provided with a cage bearing 971, which abuts against the surface of the crankshaft cam 96.

[0073] Furthermore, such as Figures 3-6 As shown, the motor 91 drives the lower crankshaft 92 to rotate, drives the upper crankshaft 94 to rotate via the first belt drive assembly 98, drives the cam divider 100 to rotate via the second belt drive assembly 99, drives the lower template 10 to move up and down via the lower crank connecting rod 93, drives the upper template 20 to move up and down via the upper crank connecting rod 95, drives the crankshaft cam 96 to rotate via the upper crankshaft 94, and simultaneously, as the crankshaft cam 96 rotates, it presses against the cage bearing 971 to drive the cam bearing cage 97 and the polygonal guide post 30 to move up and down.

[0074] In this embodiment, the drive mechanism 90 uses a single motor 91 to drive each moving component. Specifically, the motor 91 drives the lower crankshaft 92 to rotate via its main shaft. The lower crankshaft 92 drives the upper crankshaft 94 to rotate via the first belt drive assembly 98 and the second belt drive assembly 99, and outputs power to the cam divider 100. The rotating flange 101 on the cam divider 100 rotates and drives the rotating disk 70 to rotate. Thus, under the action of the fixed cam 80, the can body clamping mechanism 60 can clamp the can body 200. At the same time, because the upper crankshaft 94 and the lower crankshaft 92 are respectively connected to the upper crank connecting rod 95 and the lower crank connecting rod 93, the upper crank connecting rod 95 and the lower crank connecting rod 93 drive the upper template 20 and the lower template 10 to move, thereby driving the lower mold 51 to move and the upper template 20 to move. Simultaneously, under the action of the crankshaft cam 96 set on the upper crankshaft 94, it can drive the cam bearing retainer 97 and the polygonal guide post 30 to move up and down by pressing against the retainer bearing 971 on the cam bearing retainer 97. Ultimately, the lower die 51 and the upper die 52 move to position the can body 200 clamped in the can body clamping mechanism 60. Then, the upper die plate 20 continues to move until the hard stainless steel plate 21 set on it presses against the first force arm 5412 and the second force arm 5422 of the hinge shearing mechanism 54, driving the first shear arm 5413 and the second shear arm 5423 to close. Thus, the hinge position 201 is punched out on the side of the can body 200 through the cooperation of the concave punch 545 and the convex punch 546. The linkage control effect of the entire drive mechanism 90 is excellent, and it can be achieved using a single motor 91.

[0075] Furthermore, such as Figures 3-4 As shown, the first belt drive assembly 98 includes a first drive belt 981, a first lower pulley 982, and a first upper pulley 983. The second belt drive assembly 99 includes a second drive belt 991, a second lower pulley (not shown), and a second upper pulley (not shown). The first lower pulley 982 and the second lower pulley are both mounted on the lower crankshaft 92. The first upper pulley 983 is mounted on the upper crankshaft 94. The second upper pulley is mounted on the input shaft of the cam divider 100. The first drive belt 981 connects the first lower pulley 982 and the first upper pulley 983, and the second drive belt 991 connects the second lower pulley and the second upper pulley. Thus, as the lower crankshaft 982 rotates, the first lower pulley 982 drives the first upper pulley 983 to rotate via the first drive belt 981, thereby driving the upper crankshaft 94 to rotate. At the same time, when the second lower pulley rotates with the lower crankshaft 92, it drives the input shaft of the cam divider 100 to rotate and input power through the second transmission belt 991.

[0076] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A metal can flanging die characterized by comprising: The device includes a lower die, an upper die, an upper die fixing block, and a hinge shearing mechanism. The lower die has a lower limiting groove for the can body at its top. The upper die is positioned above the lower die. The upper die has a horizontally penetrating shearing mounting cavity and a first punching hole and a second punching hole arranged vertically and side by side at its top. The lower die has a can body limiting groove located around the first punching hole at its bottom. The can body limiting groove and the lower limiting groove together limit the upper and lower ends of the can body. The hinge shearing mechanism is installed in the shearing mounting cavity and extends through the first punching hole and the second punching hole to perform hinge shearing on the can body. The upper die fixing block covers the top of the upper die to prevent the hinge shearing mechanism from exiting the shearing mounting cavity.

2. The metal can body seaming die according to claim 1, wherein, The hinge shearing mechanism includes a first shearing rod, a second shearing rod, a first spring, a second spring, and a concave punch and a convex punch that cooperate with each other. The first shearing rod includes a first swing arm, a first force-bearing arm, and a first shearing arm. The first force-bearing arm and the first shearing arm are respectively connected to the two ends of the first swing arm and extend in opposite directions. The second shearing rod includes a second swing arm, a second force-bearing arm, and a second shearing arm. The second force-bearing arm and the second shearing arm are respectively connected to the two ends of the second swing arm and extend in opposite directions. The connection between the first shear arm and the first swing arm is provided with a first convex arc portion and a first concave arc portion arranged side by side, and the connection between the second shear arm and the second swing arm is provided with a second convex arc portion and a second concave arc portion arranged side by side; the second convex arc portion cooperates with the first concave arc portion, the second concave arc portion cooperates with the first convex arc portion, and after passing through the first convex arc portion and the second convex arc portion via a pivot, it is hinged in the shear mounting cavity; The first shear arm extends through the first punching hole, and the concave punch is installed on the side of the first shear arm. The second shear arm extends through the second punching hole, and the convex punch is installed on the side of the second shear arm and is arranged facing the concave punch. The first spring is connected between the first swing arm and the bottom surface of the shear mounting cavity, and the second spring is connected between the second swing arm and the bottom surface of the shear mounting cavity. Under the elastic support force of the first spring and the second spring, the first shear arm and the second shear arm are in the normally open state. When the top of the first force arm and the second force arm are subjected to pressure, the first swing arm and the second swing arm can be forced to swing around the pivot until the first shear arm and the second shear arm are closed. At this time, the concave punch and the convex punch cooperate to punch out the hinge position on the can body.

3. A metal can body hinging position processing apparatus characterized by comprising: The device includes a lower template, an upper template, a polygonal guide post, a polygonal guide sleeve, and a metal can punching hinge position die as described in claim 1 or 2. The lower die is installed on the top of the lower template and moves up and down as driven by the lower template. The upper die is installed on the bottom of the upper template and moves up and down as driven by the lower template. The polygonal guide sleeve is installed in the upper template. The polygonal guide post passes through the polygonal guide sleeve and slides up and down in cooperation with it. The upper die fixing block is connected to the bottom of the polygonal guide post and moves up and down as driven by the polygonal guide post. As the lower template moves down, it can press against the hinge position shearing mechanism to punch the hinge position of the can body.

4. The metal can hinge site processing apparatus according to claim 3, wherein The bottom of the upper template is provided with a rigid stainless steel plate, which is used to press against the hinge shearing mechanism when the lower template moves down.

5. The metal can hinge joint processing device according to claim 3, characterized in that, It also includes a can body clamping mechanism, which includes a front end block, a left trapezoidal block, a right trapezoidal block, and a rear end block. The front end block, the left trapezoidal block, the rear end block, and the right trapezoidal block are sequentially arranged to form a clamping cavity for clamping the can body. The front end block and the rear end block respectively engage with the inclined surfaces at both ends of the left trapezoidal block and the right trapezoidal block. When the rear end block is forced to move toward the front end block, the inclined surfaces allow the left trapezoidal block and the right trapezoidal block to move towards each other to clamp the can body located in the clamping cavity.

6. The metal can hinge joint processing device according to claim 5, characterized in that, It also includes a rotating disk and a fixed cam. The rotating disk is located between the lower mold and the upper mold. The rotating disk has a movable hole through which the can body clamping mechanism passes. The front end block is fixed to the rotating disk. A radial guide seat is also provided on the rotating disk near the rear end block. A radial guide block extends from the rear end block, passes through and slides with the radial guide seat. A guide bearing is provided at the end of the radial guide block. The fixed cam is fixed above the rotating disk, and an annular curved groove is provided at the bottom of the fixed cam. The guide bearing is accommodated in the annular curved groove. By rotating the rotating disk, the guide bearing is driven to rotate along the annular curved groove. The pressure applied to the guide bearing by the annular curved groove forces the radial guide block to slide along the radial guide seat, thereby driving the rear end block to move towards the front end block.

7. The metal can hinge joint processing device according to claim 6, characterized in that, Multiple can-body clamping mechanisms are provided, and each can-body clamping mechanism is arranged radially around the center of the rotating disk. A lateral guide seat is provided on the rotating disk between the left trapezoidal block and the right trapezoidal block in two adjacent can-body clamping mechanisms. A left guide block and a right guide block are respectively extended from the left trapezoidal block and the right trapezoidal block, which are inserted into the lateral guide seat and slide with it. The adjacent left guide block and the right guide block are connected by a tension spring.

8. The metal can hinge joint processing device according to claim 7, characterized in that, It also includes a cam divider, which has a rotating flange on the outer ring and a fixed flange on the inner ring. The rotating disk is fixedly connected to the rotating flange, and the fixed cam is fixedly connected to the fixed flange.

9. The metal can hinge joint processing device according to claim 8, characterized in that, It also includes a drive mechanism, which includes a motor, a lower crankshaft, a lower crank connecting rod, an upper crankshaft, an upper crank connecting rod, a crankshaft cam, a cam bearing cage, a first belt drive assembly, and a second belt drive assembly. The lower crankshaft is located below the lower template, and the upper crankshaft is located above the upper template. One end of the lower crankshaft and one end of the upper crankshaft are connected by the first belt drive assembly. The lower crankshaft is also connected to the input shaft of the cam divider by the second belt drive assembly. The main shaft of the motor is connected to the other end of the lower crankshaft. The lower crank connecting rod is connected between the lower crankshaft and the lower template, the upper crank connecting rod is connected between the upper crankshaft and the upper template, the crankshaft cam is connected to the upper crankshaft, the cam bearing cage is mounted and fixed on the upper part of the polygonal guide post, the cam bearing cage is provided with a cage bearing, and the cage bearing abuts against the surface of the crankshaft cam. The motor drives the lower crankshaft to rotate, which in turn drives the upper crankshaft to rotate via the first belt drive assembly. The second belt drive assembly drives the cam divider to rotate, which in turn drives the lower template to move up and down via the lower crank connecting rod. The upper template also moves up and down via the upper crank connecting rod. The upper crankshaft drives the crankshaft cam to rotate, and as the crankshaft cam rotates, it presses against the cage bearing to drive the cam bearing cage and the polygonal guide post to move up and down.

10. The metal can hinge joint processing device according to claim 9, characterized in that, The first belt drive assembly includes a first drive belt, a first lower pulley, and a first upper pulley. The second belt drive assembly includes a second drive belt, a second lower pulley, and a second upper pulley. The first lower pulley and the second lower pulley are both mounted on the lower crankshaft. The first upper pulley is mounted on the upper crankshaft. The second upper pulley is mounted on the input shaft of the cam divider. The first drive belt connects the first lower pulley and the first upper pulley. The second drive belt connects the second lower pulley and the second upper pulley.

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