A metal can punch forming apparatus

Abstract

The application is suitable for the technical field of metal can forming, and provides a metal can punch forming equipment, which comprises a table top, a male die and a female die arranged above the table top, and a punch assembly arranged at the upper end of the table top and used for driving the male die to move up and down. The female die comprises a female die bottom plate and three female die side walls which are evenly distributed in a ring shape around the periphery of the female die bottom plate. Two first guide shafts are fixedly connected to each of the three female die side walls. Three fixed blocks and a pushing shaft are fixedly connected in a ring shape to the upper end of the table top. The two first guide shafts on the female die side walls are slidingly connected to the fixed blocks. The three female die bottom plates are designed to be opened and closed, which facilitates demolding and taking of the punch part. The design of the track groove plays a self-locking role when the three female die bottom plates are closed, and can limit the opening and closing separation of the three female die bottom plates.

Description

Technical Field

[0001] This invention belongs to the field of metal can forming technology, and in particular relates to a metal can stamping and forming equipment. Background Technology

[0002] Metal can stamping is completed by the cooperation of a punch and a die. The metal sheet is placed between the punch and the die, and the die and punch close to complete the metal can forming.

[0003] A Chinese utility model patent (CN216729248U) discloses an automatic can stamping and forming device. In use, a cylinder is activated, extending its cylinder rod. The cylinder rod moves a support plate, which in turn moves a connecting rod. The connecting rod moves a slider, which in turn moves a mold. The mold movement brings the two molds into contact, allowing the blank to be placed inside. The cylinder drives the support plate to move, facilitating the mold's movement on the frame and thus allowing the product to easily separate from the mold. Then, a motor is activated, causing a rotating shaft to rotate. This shaft rotates a square block, which in turn rotates an eccentric wheel. The eccentric wheel's rotation moves a pressure plate, causing it to move downwards and allowing the die head to enter the mold, forming the product. The motor drives the eccentric wheel to rotate, bringing it into contact with the pressure plate and facilitating the die head's cooperation with the mold to form the product.

[0004] The above method facilitates demolding by using a combined die. When demolding is required, the two dies separate. Although this facilitates demolding, the above method still has drawbacks. During the stamping process, the two dies are subjected to a large thrust. When the thrust is greater than the thrust of the cylinder, the two dies will separate during the stamping process, making it impossible to stamp the metal can. Summary of the Invention

[0005] The purpose of this invention is to provide a metal can stamping equipment, which aims to solve the problem that during the stamping process, the two dies are subjected to a large thrust, and when the thrust is greater than the thrust of the cylinder, the two dies will separate during the stamping process.

[0006] This invention is implemented as follows: a metal can stamping forming equipment includes a table, a punch and a die disposed above the table, and a stamping assembly disposed on the upper part of the table, the stamping assembly being used to drive the punch to move up and down; the die includes a die base plate and three die sidewalls, the three die sidewalls being evenly distributed in a ring around the die base plate; two first guide shafts are fixedly connected to each of the three die sidewalls; three fixed blocks and a push shaft are evenly fixedly connected in a ring around the upper part of the table; the two first guide shafts on the die sidewalls are slidably connected to the fixed blocks; a rotating ring is rotatably connected to the three fixed blocks; the rotating ring is evenly provided with three track grooves in a ring; the push shafts on the three die sidewalls are slidably connected to the three track grooves respectively; the track grooves include interconnected arc segments and moving segments; a rotating mechanism is disposed on the table, the rotating mechanism being used to drive the rotating ring to rotate; a limiting mechanism is disposed on one of the fixed blocks; a transmission assembly is disposed on the rotating mechanism; when the rotating mechanism drives the rotating ring to rotate, the transmission assembly drives the limiting mechanism to limit the rotating ring to reverse.

[0007] In a further technical solution, the stamping assembly includes a fixed frame fixedly connected to the upper end of the table, two second guide shafts slidably connected to the fixed frame, a hydraulic cylinder fixedly connected to the upper end of the fixed frame, the telescopic end of the hydraulic cylinder penetrating downward through the fixed frame and fixedly connected to a mounting plate, the lower ends of the two second guide shafts being fixedly connected to the mounting plate, and the punch being fixedly mounted on the lower end of the mounting plate by bolts.

[0008] In a further technical solution, the limiting mechanism includes a ratchet embedded in the side wall of the rotating ring, a second sliding groove provided on one of the fixed blocks, a second sliding rod slidably connected in the second sliding groove, one end of the second sliding rod extending out of the fixed block, a second spring fixedly connected to the other end of the second sliding rod, and the other end of the second sliding rod being connected to a meshing tooth that meshes with the ratchet through an elastic component.

[0009] In a further technical solution, the elastic component includes a third sliding groove provided on the second sliding rod, a slider slidably connected in the third sliding groove, a third spring fixedly connected to one end of the slider, the third spring being disposed in the third sliding groove, and the other end of the slider being fixedly connected to a meshing tooth.

[0010] In a further technical solution, the rotating mechanism includes an external toothed ring embedded in the side wall of the rotating ring, a guide block fixedly connected to the upper end of the platform, a sliding block slidably connected to the guide block, a rack fixedly connected to the sliding block and meshing with the external toothed ring, and a driving component for moving the sliding block is provided at the upper end of the platform.

[0011] In a further technical solution, the driving component is a telescopic cylinder fixedly connected to the upper end of the platform, and the telescopic end of the telescopic cylinder is connected to the sliding block through a transmission assembly.

[0012] In a further technical solution, the transmission assembly includes a first sliding groove disposed within a sliding block, a first sliding rod slidably connected within the first sliding groove, a push rod fixedly connected to one end of the first sliding rod, a first spring fixedly connected to the other end of the first sliding rod, the first spring being disposed within the first sliding groove, and the other end of the first sliding rod being fixedly connected to the telescopic end of a telescopic cylinder.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention provides a metal can stamping forming equipment. The rotating mechanism drives the rotating ring to reverse. The rotating ring moves in the opposite direction through the moving section of the track groove, which can drive the three die sidewalls to move in the opposite direction, thereby separating the metal can from the die and making it easier to pick up the stamped metal can. The invention facilitates demolding and picking up the stamped parts through the opening and closing design of the three die base plates. In addition, the track groove design plays a self-locking role when the three die base plates are closed, which can restrict the opening and closing separation of the three die base plates. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a metal can stamping and forming equipment provided by the present invention; Figure 2 Provided by the present invention Figure 1 A structural diagram excluding the stamping components and the worktable; Figure 3 Provided by the present invention Figure 2 Schematic diagram of the internal structure of the sliding block and the fixed block; Figure 4 Provided by the present invention Figure 3 A magnified structural diagram of A in the middle; Figure 5 Provided by the present invention Figure 4 A schematic diagram of the internal structure of the second sliding rod in region B.

[0015] In the attached diagram: Tabletop-101, Punch-102, Die sidewall-103, Die base plate-104, Fixing block-105, First guide shaft-106, Rotating ring-107, Track groove-108, Arc segment-109, Moving segment-110, Push shaft-111, Punching assembly-2, Fixing frame-201, Mounting plate-202, Second guide shaft-203, Hydraulic cylinder-204, Rotating mechanism-3, External gear ring-301, Guide block- 302, Sliding block - 303, Rack - 304, Telescopic cylinder - 305, Transmission assembly - 4, First sliding groove - 401, First sliding rod - 402, First spring - 403, Push rod - 404, Limiting mechanism - 5, Ratchet - 501, Second sliding groove - 502, Second sliding rod - 503, Second spring - 504, Meshing teeth - 505, Elastic assembly - 6, Third sliding groove - 601, Slider - 602, Third spring - 603. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0017] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0018] like Figures 1-4As shown, a metal can stamping and forming equipment according to an embodiment of the present invention includes a table 101, a punch 102 and a die 103 disposed above the table 101, and a stamping assembly 2 disposed on the upper end of the table 101. The stamping assembly 2 is used to drive the punch 102 to move up and down. The die 103 includes a die base plate 104 and three die sidewalls 103, which are evenly distributed in a ring around the die base plate 104. Two first guide shafts 106 are fixedly connected to each of the three die sidewalls 103. Three fixing blocks 105 and a push shaft 111 are evenly fixedly connected in a ring around the upper end of the table 101. The two first guide shafts on the die sidewalls 103 are... 106 is slidably connected to the fixed block 105; a rotating ring 107 is rotatably connected to the three fixed blocks 105, and three track grooves 108 are evenly arranged in a ring on the rotating ring 107. The push shafts 111 on the three sidewalls 103 of the die are slidably connected to the three track grooves 108 respectively. The track grooves 108 include interconnected arc segments 109 and moving segments 110; a rotating mechanism 3 is provided on the table 101, and the rotating mechanism 3 is used to drive the rotating ring 107 to rotate. A limiting mechanism 5 is provided on one of the fixed blocks 105, and a transmission component 4 is provided on the rotating mechanism 3. When the rotating mechanism 3 drives the rotating ring 107 to rotate, the transmission component 4 drives the limiting mechanism 5 to limit the rotating ring 107 to reverse.

[0019] In this embodiment of the invention, during use, the rotating mechanism 3 drives the rotating ring 107 to rotate, so that the push shaft 111 is within the arc-shaped segment 109 of the track groove 108. At this time, the three die sidewalls 103 are in a closed state, and the three die sidewalls 103 and the die base plate 104 constitute a complete die. The arc-shaped segment 109 can restrict the push shaft 111 and the die sidewalls 103 from moving away from the die base plate 104, thereby ensuring the integrity of the die. When the rotating mechanism 3 drives the rotating ring 107 to rotate, the transmission component 4 drives the limiting mechanism 5 to restrict the rotating ring 107 from reversing, thereby avoiding die separation due to accidental contact with the rotating ring 107. Therefore, when the three die sidewalls 103 are in a closed state, it is impossible to manually separate the three die sidewalls 103. The metal plate is placed on the upper end of the die sidewall 103. The stamping assembly 2 drives the punch 102 to move downward. The punch 102 cooperates with the die to complete the stamping of the metal can. The stamping assembly 2 then drives the punch 102 to move upward. The metal can is located inside the die. The rotating mechanism 3 drives the rotating ring 107 to reverse. The rotating ring 107 can drive the three die sidewalls 103 to move in the opposite direction through the moving section 110 of the track groove 108, thereby causing the metal can to separate from the die and making it easier to pick up the stamped metal can. The invention facilitates demolding and picking up the stamped parts through the design of the opening and closing of the three die base plates 104. In addition, the design of the track groove 108 plays a self-locking role when the three die base plates 104 are closed, which can restrict the opening and closing separation of the three die base plates 104.

[0020] like Figure 1 As shown, in a preferred embodiment of the present invention, the stamping assembly 2 includes a fixed frame 201 fixedly connected to the upper end of the table 101. Two second guide shafts 203 are slidably connected to the fixed frame 201. A hydraulic cylinder 204 is fixedly connected to the upper end of the fixed frame 201. The telescopic end of the hydraulic cylinder 204 passes downward through the fixed frame 201 and is fixedly connected to a mounting plate 202. The lower ends of the two second guide shafts 203 are fixedly connected to the mounting plate 202. The punch 102 is fixedly installed on the lower end of the mounting plate 202 by bolts.

[0021] In this embodiment of the invention, when the hydraulic cylinder 204 extends, under the guidance of the second guide shaft 203, the hydraulic cylinder 204 drives the mounting plate 202 to move downward, and the mounting plate 202 drives the punch 102 to move downward; when the hydraulic cylinder 204 retracts, under the guidance of the second guide shaft 203, the hydraulic cylinder 204 drives the mounting plate 202 to move upward, and the mounting plate 202 drives the punch 102 to move upward.

[0022] like Figures 1-5 As shown, in a preferred embodiment of the present invention, the limiting mechanism 5 includes a ratchet 501 embedded in the side wall of the rotating ring 107. A second sliding groove 502 is provided on one of the fixed blocks 105. A second sliding rod 503 is slidably connected in the second sliding groove 502. One end of the second sliding rod 503 extends out of the fixed block 105, and the other end of the second sliding rod 503 is fixedly connected to a second spring 504. The other end of the second sliding rod 503 is connected to a meshing tooth 505 that meshes with the ratchet 501 through an elastic component 6. The elastic component 6 includes a third sliding groove 601 provided on the second sliding rod 503. A slider 602 is slidably connected in the third sliding groove 601. One end of the slider 602 is fixedly connected to a third spring 603. The third spring 603 is disposed in the third sliding groove 601, and the other end of the slider 602 is fixedly connected to the meshing tooth 505.

[0023] In this embodiment of the invention, when the three die sidewalls 103 are not closed, the second spring 504 is in an extended state, and the meshing teeth 505 do not mesh with the ratchet 501. When the three die sidewalls 103 are closed, the transmission assembly 4 pushes the second sliding rod 503. The second sliding rod 503 overcomes the elastic force of the second spring 504 and drives the meshing teeth 505, the slider 602 and the third spring 603 to move. Then, the elastic force of the third spring 603 makes the meshing teeth 505 mesh with the ratchet 501.

[0024] like Figures 1-4As shown, in a preferred embodiment of the present invention, the rotating mechanism 3 includes an external toothed ring 301 embedded in the side wall of the rotating ring 107, a guide block 302 fixedly connected to the upper end of the platform 101, a sliding block 303 slidably connected to the guide block 302, a rack 304 fixedly connected to the sliding block 303 and meshing with the external toothed ring 301, and a driving member for driving the sliding block 303 to move is provided at the upper end of the platform 101. The driving member is a telescopic cylinder 305 fixedly connected to the upper end of the platform 101, and the telescopic end of the telescopic cylinder 305 is connected to the sliding block 303 through a transmission assembly 4. The transmission assembly 4 includes a first sliding groove 401 provided in the sliding block 303, a first sliding rod 402 slidably connected in the first sliding groove 401, a push rod 404 fixedly connected to one end of the first sliding rod 402, a first spring 403 fixedly connected to the other end of the first sliding rod 402, the first spring 403 being provided in the first sliding groove 401, and the other end of the first sliding rod 402 being fixedly connected to the telescopic end of the telescopic cylinder 305.

[0025] In this embodiment of the invention, the telescopic cylinder 305 extends. Under the guidance of the guide block 302, the telescopic cylinder 305 drives the first sliding rod 402 to move. The first sliding rod 402 drives the sliding block 303 to move. The sliding block 303 drives the rack 304 to move. The rack 304 drives the outer gear ring 301 to rotate. The outer gear ring 301 drives the rotating ring 107 to rotate. Furthermore, when the first sliding rod 402 moves, it also drives the push rod 404 to move. The push rod 404 pushes the second sliding rod 503. When the cylinder 305 retracts, the telescopic cylinder 305 pulls the first sliding rod 402. The first sliding rod 402 first overcomes the elastic force of the first spring 403 and drives the push rod 404 to move in the opposite direction, thereby preventing the push rod 404 from pushing the second sliding rod 503, thus releasing the reverse rotation restriction of the rotating ring 107. The first sliding rod 402 then drives the sliding block 303 to move in the opposite direction, the sliding block 303 drives the rack 304 to move in the opposite direction, the rack 304 drives the outer toothed ring 301 to reverse, and the outer toothed ring 301 drives the rotating ring 107 to reverse.

[0026] The above embodiments of the present invention provide a metal can stamping and forming equipment. In use, the telescopic cylinder 305 extends. Under the guidance of the guide block 302, the telescopic cylinder 305 drives the first sliding rod 402 to move. The first sliding rod 402 drives the sliding block 303 to move. The sliding block 303 drives the rack 304 to move. The rack 304 drives the outer gear ring 301 to rotate. The outer gear ring 301 drives the rotating ring 107 to rotate, causing the push shaft 111 to be positioned within the arc-shaped segment 109 of the trajectory groove 108. At this time, the three die sidewalls 103 are in a closed state. The three die sidewalls 103 and the die base plate 104 constitute a complete die. Furthermore, the arc-shaped segment 109 can restrict the push shaft 111 and the die sidewalls 103 from moving away from the die base plate. The movement of 104 ensures the integrity of the die cavity. The movement of the first sliding rod 402 also drives the push rod 404 to move. The push rod 404 pushes the second sliding rod 503. The second sliding rod 503 overcomes the elasticity of the second spring 504 and drives the meshing teeth 505, the slider 602, and the third spring 603 to move. The elasticity of the third spring 603 causes the meshing teeth 505 to engage with the ratchet 501, thus limiting the reverse rotation of the rotating ring 107. This prevents the die cavity from separating due to accidental contact with the rotating ring 107 when the telescopic cylinder 305 is damaged. Therefore, when the three die cavity sidewalls 103 are closed, they cannot be manually separated. A metal plate is placed on the upper end of the die cavity sidewall 103, and the hydraulic cylinder 204 extends. Guided by the guide shaft 203, the hydraulic cylinder 204 drives the mounting plate 202 to move downwards. The mounting plate 202 drives the punch 102 to move downwards. The punch 102 cooperates with the die to complete the stamping of the metal can. The hydraulic cylinder 204 then retracts. Guided by the second guide shaft 203, the hydraulic cylinder 204 drives the mounting plate 202 to move upwards. The mounting plate 202 drives the punch 102 to move upwards. The metal can is located inside the die. The telescopic cylinder 305 retracts. The telescopic cylinder 305 pulls the first sliding rod 402. The first sliding rod 402 first overcomes the elastic force of the first spring 403 and drives the push rod 404 to move in the opposite direction. This prevents the push rod 404 from pushing the second sliding rod 503. The second spring 504 extends, and the meshing teeth 505 do not engage with the ratchet. The engagement of wheel 501 releases the reverse rotation restriction of rotating ring 107. The first sliding rod 402 then drives sliding block 303 to move in the opposite direction. Sliding block 303 drives rack 304 to move in the opposite direction. Rack 304 drives external gear ring 301 to reverse. External gear ring 301 drives rotating ring 107 to reverse. Rotating ring 107 can drive the three die sidewalls 103 to move in the opposite direction through the moving section 110 of track groove 108, thereby disengaging the metal can from the die and facilitating the removal of the stamped metal can. The invention facilitates demolding and removal of stamped parts through the opening and closing design of the three die base plates 104. Furthermore, the design of track groove 108 plays a self-locking role when the three die base plates 104 are closed, which can restrict the opening and closing separation of the three die base plates 104.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A metal can stamping and forming equipment, comprising a table, and a punch and a die disposed above the table, characterized in that, Also includes: A stamping assembly is disposed on the upper end of the table and is used to drive the punch to move up and down; The die includes a die base plate and three die side walls, which are evenly distributed in a ring around the die base plate. Two first guide shafts are fixedly connected to each of the three die sidewalls. Three fixed blocks and one push shaft are evenly fixedly connected in a ring at the upper end of the table. The two first guide shafts on the die sidewalls are slidably connected to the fixed blocks. Rotating rings are rotatably connected to the three fixed blocks. Three track grooves are evenly arranged in a ring on the rotating rings. Push shafts on the three sidewalls of the die are slidably connected in the three track grooves. The track grooves include interconnected arc segments and moving segments. A rotating mechanism is provided on the platform to drive the rotating ring to rotate. A limiting mechanism is provided on one of the fixed blocks. A transmission component is provided on the rotating mechanism. When the rotating mechanism drives the rotating ring to rotate, the transmission component drives the limiting mechanism to restrict the rotating ring from reversing.

2. The metal can stamping and forming equipment according to claim 1, characterized in that, The stamping assembly includes a fixed frame fixedly connected to the upper end of the table, two second guide shafts slidably connected to the fixed frame, a hydraulic cylinder fixedly connected to the upper end of the fixed frame, the telescopic end of the hydraulic cylinder penetrating downward through the fixed frame and fixedly connected to a mounting plate, the lower ends of the two second guide shafts being fixedly connected to the mounting plate, and the punch being fixedly mounted on the lower end of the mounting plate by bolts.

3. The metal can stamping and forming equipment according to claim 1, characterized in that, The limiting mechanism includes a ratchet embedded in the side wall of the rotating ring, a second sliding groove provided on one of the fixed blocks, a second sliding rod slidably connected in the second sliding groove, one end of the second sliding rod extending out of the fixed block, a second spring fixedly connected to the other end of the second sliding rod, and the other end of the second sliding rod being connected to a meshing tooth that meshes with the ratchet through an elastic component.

4. The metal can stamping and forming equipment according to claim 3, characterized in that, The elastic component includes a third sliding groove provided on the second sliding rod, a slider slidably connected in the third sliding groove, a third spring fixedly connected to one end of the slider, the third spring being disposed in the third sliding groove, and the other end of the slider being fixedly connected to a meshing tooth.

5. The metal can stamping and forming equipment according to claim 3, characterized in that, The rotating mechanism includes an external toothed ring embedded in the side wall of the rotating ring, a guide block fixedly connected to the upper end of the platform, a sliding block slidably connected to the guide block, a rack fixedly connected to the sliding block that meshes with the external toothed ring, and a driving component for moving the sliding block provided at the upper end of the platform.

6. The metal can stamping and forming equipment according to claim 5, characterized in that, The driving component is a telescopic cylinder fixedly connected to the upper part of the platform, and the telescopic end of the telescopic cylinder is connected to the sliding block through a transmission assembly.

7. The metal can stamping and forming equipment according to claim 6, characterized in that, The transmission assembly includes a first sliding groove provided in the sliding block, a first sliding rod slidably connected in the first sliding groove, a push rod fixedly connected to one end of the first sliding rod, a first spring fixedly connected to the other end of the first sliding rod, the first spring being disposed in the first sliding groove, and the other end of the first sliding rod being fixedly connected to the telescopic end of the telescopic cylinder.

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