Forming process and device for ultra-thin tinplate cans

Abstract

The application discloses a forming process and device of an ultrathin tinplate can and belongs to the technical field of ultrathin tinplate can production, and comprises the following components: a rack assembly, a turnover die seat assembly, a clamping assembly, a clamping follow-up driving assembly, an upper and lower workpiece assembly, an upper and lower workpiece clamping active driving assembly, a stamping die seat assembly, a stamping workpiece clamping active driving assembly and a control assembly. The application can realize accurate workpiece feeding, accurate stamping forming and accurate workpiece discharging by controlling the loosening or clamping of the clamping assembly without affecting the stamping forming of the ultrathin tinplate can, thereby improving the stamping precision of the ultrathin tinplate can and the production rate of the ultrathin tinplate can.

Description

Technical Field

[0001] This invention belongs to the field of ultra-thin tin can production technology, specifically relating to a forming process and apparatus for ultra-thin tin cans. Background Technology

[0002] Ultra-thin tin cans are lightweight tin cans formed by stamping ultra-thin tinplate.

[0003] Chinese patent application number 202322957604.2 discloses a tin can forming machine, including a feeding component, an automatic demolding lower die holder component, a stamping upper die holder component, and a discharging component. The feeding component conveys tinplate to the automatic demolding lower die holder component, where the stamping upper die holder component and the automatic demolding lower die holder component cooperate to stamp and form a tin can. When the stamping upper die holder component resets, the automatic demolding lower die holder component automatically demolds the formed tin can. The demolded tin can is then conveyed out by the discharging component.

[0004] The aforementioned existing technology has the following problems: the feeding of the tin can forming machine cannot accurately position the tinplate at the stamping position, nor can it accurately position the stamped tin can at the unloading position, which not only reduces the stamping accuracy of the tin can, but also reduces the production rate of the stamped tin can.

[0005] In view of this, a forming process and apparatus for ultra-thin tin cans are designed to solve the above problems. Summary of the Invention

[0006] To address the problems mentioned in the background section, this invention provides a forming process and apparatus for ultra-thin tin cans. This apparatus achieves precise workpiece loading, precise stamping, and precise workpiece unloading by controlling the opening or closing of clamping components without affecting the stamping process of the ultra-thin tin can. This not only improves the stamping accuracy of ultra-thin tin cans but also increases their production rate.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a forming apparatus for ultra-thin tin cans, comprising: Rack components; A flip-type die holder assembly is mounted on the frame assembly. The position of the die holder is switched by flipping to switch between upper and lower workpieces or for stamping. A clamping assembly, assembled on the flip-type mold base assembly, clamps the workpiece on the flip-type mold base assembly; A clamping follow-up drive component is assembled on the flip-type mold base assembly, and drives the clamping component to clamp or release the workpiece according to the actual needs of the workpiece. The upper and lower workpiece assembly is assembled on the frame assembly for loading and unloading workpieces. An active drive assembly for clamping and releasing workpieces is mounted on the workpiece assembly and works in conjunction with the clamping follow-up drive assembly. It drives the clamping assembly to clamp or release the workpieces according to the actual needs of the workpieces so that the workpieces can be moved up and down. A stamping die base assembly is assembled on the frame assembly and cooperates with the flipping die base assembly to form ultra-thin tin cans by stamping. A stamping workpiece clamping active drive assembly is assembled on the upper and lower workpiece assemblies and cooperates with the clamping follow-up drive assembly. According to the actual needs of the workpiece, the clamping assembly is driven to clamp or release the workpiece so as to stamp the workpiece. The control component, a controller mounted on the frame assembly, controls the actions of each component to complete the upper workpiece, workpiece stamping, and lower workpiece of the ultra-thin tin can.

[0008] Furthermore, the frame assembly includes a base frame, with support columns fixedly connected to the four corners of the top of the base frame, an intermediate frame fixedly connected to the top of the four support columns, a top frame fixedly connected to one side of the top of the intermediate frame, and the controller fixedly connected to the top frame.

[0009] Furthermore, the flip-type mold base assembly includes two inverted U-shaped support frames disposed on the top of the intermediate frame away from the top frame. The two support frames are parallel to the vertical section of the top frame. A motor is fixedly connected to the support frame away from the top frame side wall. Rotating shafts are respectively disposed on the side of the two support frames close to each other. The two rotating shafts are respectively connected to the motor output end through a coupling and to the adjacent support frame through a bearing. Rotating frames are fixedly connected to the two rotating shafts close to each other end walls. A support base is fixedly connected between the two rotating frames. A lower mold base is fixedly connected to the top of the support base.

[0010] Furthermore, the clamping assembly includes two follower shafts symmetrically connected between two rotating frames via bearings. The two follower shafts are located on both sides of the support base, and two clamping claws are symmetrically fixed on the follower shafts, with the clamping ends of the clamping claws facing the lower mold base.

[0011] Furthermore, the clamping follow-up drive assembly includes two gears symmetrically fixedly sleeved on the follow-up shaft and two movable through slots symmetrically opened on the rotating frame. The two gears are respectively located outside the two clamping claws. A movable rod is movably arranged inside the movable through slot. A connecting frame is fixedly connected to the bottom end of the movable rod. An upper connecting spring is sleeved on the movable rod, with its two ends fixedly connected to the bottom end of the rotating frame and the top end of the connecting frame, respectively. A rack is fixedly connected to the top end of the connecting frame away from the movable rod, and the rack meshes with the adjacent gear.

[0012] Furthermore, the upper and lower workpiece assembly includes an installation through slot opened inside the middle frame on the side away from the two support frames, and a moving through slot opened between the two support frames on the middle frame. A transverse moving hydraulic cylinder is fixedly connected inside the installation through slot, and two guide rods are symmetrically fixedly connected inside the moving through slot. A moving seat is movably sleeved on the two guide rods through openings. The output end of the transverse moving hydraulic cylinder is fixedly connected to the moving seat. A vertical moving hydraulic cylinder is fixedly connected to the bottom end of the moving seat, and a workpiece placement table is fixedly connected to the output end of the vertical moving hydraulic cylinder above the moving seat.

[0013] Furthermore, the active drive assembly for clamping the upper and lower workpieces includes four lower support arms fixedly connected to the four corner side walls of the workpiece placement table. A lower pressing rod is movably arranged on each lower support arm corresponding to the position of the movable rod. A movable seat is fixedly connected to the bottom end of the lower pressing rod. A lower connecting spring is sleeved on the lower pressing rod, with its two ends fixedly connected to the bottom end of the lower support arm and the top end of the movable seat, respectively. An electromagnet and an iron block for driving the lower pressing rod to rise and fall are fixedly connected to the lower support arm and the movable seat at corresponding positions close to each other on the side walls.

[0014] Furthermore, the stamping die base assembly includes a stamping hydraulic cylinder fixed to the top of the top frame and two guide columns symmetrically fixed to the bottom of the top frame and the top of the support frame. The output end of the stamping hydraulic cylinder extends into the top frame and is fixed to an upper die base. A guide sleeve is movably sleeved on the guide column and is fixed to the upper die base.

[0015] Furthermore, the active drive assembly for clamping the stamped workpiece includes four upper support arms fixed to the outer wall of the upper die base, and upper extrusion rods are fixed to the upper support arms at the positions corresponding to the movable rods.

[0016] A forming process for ultra-thin tin cans includes the following steps: The motor drives the output end to rotate, which in turn drives the connected rotating shaft to rotate. The connected rotating shaft drives the support base to rotate, and the support base drives the lower mold base to rotate, thus completing the lower mold base to flip down into place. The robotic arm places the ultra-thin tinplate workpiece onto the workpiece placement table. A lateral hydraulic cylinder extends its output end, causing the movable seats to move downwards towards the mold base. Once in position, four electromagnets are energized, attracting four iron blocks and causing four movable seats to move upwards. These movable seats then move four lower extrusion rods upwards to their positions. A vertical hydraulic cylinder extends its output end, causing the workpiece placement table to move downwards towards the mold base. During this movement, the four lower extrusion rods contact the ultra-thin tinplate workpiece on the workpiece placement table, extruding and pressing the four movable rods. Under the extrusion force, the four movable rods move upwards, causing four connecting frames to move upwards. These connecting frames then move four racks upwards, which in turn drive four gears to rotate outwards. These gears then... Two follower shafts rotate outward, driving four clamping jaws to rotate outward. After moving into position, the four clamping jaws are released, and the ultra-thin tinplate workpiece is pressed tightly against the lower mold base. The four electromagnets are de-energized, and the four movable seats are reset under the action of the four lower connecting springs, driving the four lower extrusion rods to reset. The four movable rods lose their extrusion force and are reset under the action of the four upper connecting springs. The four movable rods drive the four connecting frames to reset, and the four connecting frames drive the four racks to reset. During the reset process of the four racks, the two follower shafts rotate inward, driving the four clamping jaws to rotate inward. After resetting to the correct position, the four clamping jaws are in the state of clamping the ultra-thin tinplate workpiece. The vertical and horizontal hydraulic cylinders are reset, completing the workpiece placement. The motor drives the output end to rotate, which in turn drives the connected rotating shaft to rotate. The connected rotating shaft drives the support base to rotate, which in turn drives the lower mold base to rotate. The lower mold base drives the ultra-thin tinplate workpiece to rotate, thus completing the upward flipping of the ultra-thin tinplate workpiece into place. The stamping hydraulic cylinder drives the output end to extend, causing the upper die base to move downwards. During the movement, the four upper extrusion rods first contact the upper die base to extrude the four movable rods. Under the extrusion force, the four movable rods move downwards, causing the four connecting frames to move downwards. The four connecting frames then cause the four racks to move downwards. During the downward movement of the four racks, the four gears rotate outwards. The four gears then cause the two follower shafts to rotate outwards. The two follower shafts then cause the four clamping jaws to rotate outwards. After moving into position, the four clamping jaws are in a released state. The upper die base is pressed tightly against the lower die base to stamp the ultra-thin tinplate workpiece into an ultra-thin tinplate can workpiece. The stamping hydraulic cylinder resets, causing the four upper extrusion rods to reset. The four movable rods lose the extrusion force and reset under the action of the four upper connecting springs. The four movable rods then cause the four connecting frames to reset. The four connecting frames then cause the four racks to reset. During the reset process, the four racks cause the two follower shafts to rotate inwards. The two follower shafts then cause the four clamping jaws to rotate inwards. After resetting to position, the four clamping jaws are in a clamping state for the ultra-thin tinplate can workpiece, completing the stamping process. The motor drives the output end to rotate, which in turn drives the connected rotating shaft to rotate. The connected rotating shaft drives the support base to rotate, which in turn drives the lower mold base to rotate. The lower mold base drives the ultra-thin tin can workpiece to rotate, thus completing the downward flipping of the ultra-thin tin can workpiece into place. The horizontal moving hydraulic cylinder drives the output end to extend, causing the moving seat to move towards the lower mold base. After moving into position, four electromagnets are energized to attract four iron blocks, causing four movable seats to move upward. The four movable seats then cause four lower extrusion rods to move upward and extend into position. The vertical moving hydraulic cylinder drives the output end to extend, causing the workpiece placement platform to move towards the lower mold base. During the movement, the four lower extrusion rods first contact the workpiece placement platform and extrude the four movable rods. Under the extrusion force, the four movable rods move upward, causing four connecting frames to move upward. The four connecting frames then cause four racks to move upward. During the upward movement of the four racks, four gears rotate outward. The four gears then cause two follower shafts to rotate outward. The two follower shafts then cause four clamping jaws to rotate outward. After moving into position, the four clamping jaws are in a released state, and the ultra-thin tin can workpiece falls onto the workpiece placement platform. The vertical and horizontal moving hydraulic cylinders reset, and the lower workpiece robotic arm removes the ultra-thin tin can workpiece from the workpiece placement platform, completing the lower workpiece placement. Repeat the above steps until all ultra-thin tin cans are produced.

[0017] Compared with the prior art, the beneficial effects of the present invention are: This invention comprises a frame assembly, a tilting die base assembly, a clamping assembly, a clamping follow-up drive assembly, a workpiece loading and unloading assembly, a workpiece clamping active drive assembly, a stamping die base assembly, and a stamping workpiece clamping active drive assembly. Before the ultra-thin tin can is stamped, the tilting die base assembly tilts down, and the workpiece loading and unloading assembly, the workpiece clamping active drive assembly, the clamping follow-up drive assembly, and the clamping assembly engage and clamp the workpiece. The tilting die base assembly then resets to complete the overall workpiece loading operation. During the ultra-thin tin can stamping, the stamping die base assembly, the stamping workpiece clamping active drive assembly, and the clamping assembly... The system uses a follow-up drive assembly and a clamping assembly to form the stamped workpiece and clamp the formed ultra-thin tin can. After the ultra-thin tin can is stamped, it is flipped down by a flip-type mold base assembly. The upper and lower workpiece assembly, the upper and lower workpiece clamping active drive assembly, the clamping follow-up drive assembly, and the clamping assembly work together to release and unload the workpiece. Compared with the prior art, this system achieves precise workpiece loading, precise stamping, and precise workpiece unloading by controlling the release or clamping of the clamping assembly without affecting the stamping of the ultra-thin tin can. This not only improves the stamping accuracy of the ultra-thin tin can but also increases its production rate. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the present invention. Figure 3 This is a perspective view of the present invention. Figure 4 This is a vertical sectional view of the present invention; In the diagram: 101, base frame; 102, support column; 103, intermediate frame; 104, top frame; 201. Support frame; 202. Motor; 203. Rotating shaft; 204. Rotating frame; 205. Support base; 206. Lower mold base; 301. Follower shaft; 302. Clamping jaw; 401. Gear; 402. Movable through slot; 403. Movable rod; 404. Connecting bracket; 405. Upper connecting spring; 406. Rack; 501. Installation through slot; 502. Lateral movement hydraulic cylinder; 503. Moving through slot; 504. Guide rod; 505. Moving seat; 506. Vertical movement hydraulic cylinder; 507. Workpiece placement table; 601. Lower support arm; 602. Lower compression rod; 603. Movable seat; 604. Lower connecting spring; 605. Electromagnet; 606. Iron block; 701. Stamping hydraulic cylinder; 702. Upper die holder; 703. Guide post; 704. Guide sleeve; 801. Upper support arm; 802. Upper compression rod; 901. Controller. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] A forming apparatus for ultra-thin tin cans, comprising: Rack components; A flip-type die base assembly is mounted on the frame assembly. The position of the die base is switched by flipping to switch between upper and lower workpieces or for stamping. The clamping assembly is mounted on the flip-type mold base assembly and clamps the workpiece on the flip-type mold base assembly; The clamping follow-up drive component is assembled on the flip-type mold base component, and drives the clamping component to clamp or release the workpiece according to the actual needs of the workpiece. The upper and lower workpiece assembly is assembled on the frame assembly for loading and unloading workpieces; The upper and lower workpiece clamping active drive component is assembled on the upper and lower workpiece assembly and works in conjunction with the clamping follow-up drive component. It drives the clamping assembly to clamp or release the workpiece according to the actual needs of the workpiece so as to move the workpiece up and down. The stamping die base assembly is mounted on the frame assembly and works in conjunction with the flip-type die base assembly to form ultra-thin tin cans through stamping. The stamping workpiece clamping active drive assembly is assembled on the upper and lower workpiece assemblies and works in conjunction with the clamping follow-up drive assembly to drive the clamping assembly to clamp or release the workpiece according to the actual needs of the workpiece so as to stamp the workpiece. The control component, the controller 901 mounted on the frame assembly, controls the actions of each component to complete the upper workpiece, workpiece stamping and lower workpiece of the ultra-thin tin can.

[0021] Specifically, the rack assembly includes a base frame 101, with support columns 102 fixedly connected to the four corners of the top of the base frame 101, an intermediate frame 103 fixedly connected to the top of the four support columns 102, a top frame 104 fixedly connected to one side of the top of the intermediate frame 103, and a controller 901 fixedly connected to the top frame 104.

[0022] Specifically, the flip-type mold base assembly includes two inverted U-shaped support frames 201 disposed on the top of the intermediate frame 103 away from the top frame 104. The two support frames 201 are parallel to the vertical section of the top frame 104. A motor 202 is fixedly connected to the side wall of the support frame 201 away from the top frame 104. Rotating shafts 203 are respectively disposed on the side of the two support frames 201 close to each other. The two rotating shafts 203 are respectively connected to the output end of the motor 202 through a coupling and to the adjacent support frame 201 through a bearing. Rotating frames 204 are fixedly connected to the side walls of the two rotating shafts 203 close to each other. A support base 205 is fixedly connected between the two rotating frames 204. A lower mold base 206 is fixedly connected to the top of the support base 205.

[0023] See appendix Figure 1-3 The flip-type mold base assembly is driven by the output end of the motor 202 to rotate, which in turn drives the connected rotating shaft 203 to rotate. The connected rotating shaft 203 drives the support base 205 to rotate, and the support base 205 drives the lower mold base 206 to rotate, thus completing the flipping of the lower mold base 206.

[0024] Specifically, the clamping assembly includes two follower shafts 301 symmetrically connected between two rotating frames 204 via bearings. The two follower shafts 301 are located on both sides of the support base 205. Two clamping claws 302 are symmetrically fixed on the follower shafts 301, with the clamping ends of the clamping claws 302 facing the lower mold base 206.

[0025] See appendix Figure 1-2 The clamping assembly is driven by the inward or outward rotation of two follower shafts 301 to rotate the four clamping claws 302 inward or outward, thereby completing the clamping or releasing of the four clamping claws 302.

[0026] Specifically, the clamping follower drive assembly includes two gears 401 symmetrically fixedly sleeved on the follower shaft 301 and two movable through slots 402 symmetrically opened on the rotating frame 204. The two gears 401 are located on the outside of the two clamping claws 302 respectively. A movable rod 403 is movably arranged inside the movable through slot 402. A connecting frame 404 is fixedly connected to the bottom end of the movable rod 403. An upper connecting spring 405 is sleeved on the movable rod 403, with its two ends fixedly connected to the bottom end of the rotating frame 204 and the top end of the connecting frame 404 respectively. A rack 406 is fixedly connected to the top end of the connecting frame 404 away from the movable rod 403. The rack 406 meshes with the adjacent gear 401.

[0027] See appendix Figure 2 The clamping follow-up drive assembly is formed by pressing four movable rods 403. The four movable rods 403 move under the pressing force, which drives four connecting frames 404 to move. The four connecting frames 404 drive four racks 406 to move. During the movement of the four racks 406, they drive four gears 401 to rotate inward or outward. The four gears 401 drive two follow-up shafts 301 to rotate inward or outward. The two follow-up shafts 301 drive four clamping claws 302 to rotate inward or outward, thus completing the follow-up drive for clamping or releasing.

[0028] Specifically, the upper and lower workpiece assembly includes an installation through slot 501 located inside the intermediate frame 103 on the side away from the two support frames 201, and a movable through slot 503 located between the two support frames 201 in the intermediate frame 103. A transverse moving hydraulic cylinder 502 is fixedly connected inside the installation through slot 501. Two guide rods 504 are symmetrically fixedly connected inside the movable through slot 503. Movable seats 505 are movably sleeved on the two guide rods 504 through openings. The output end of the transverse moving hydraulic cylinder 502 is fixedly connected to the movable seat 505. A vertical moving hydraulic cylinder 506 is fixedly connected to the bottom end of the movable seat 505. The output end of the vertical moving hydraulic cylinder 506 extends to the top of the movable seat 505 and is fixedly connected to a workpiece placement table 507.

[0029] See appendix Figure 1 and 4 The upper and lower workpiece assemblies are driven by the horizontal moving hydraulic cylinder 502 to extend the output end, which drives the moving seat 505 to move into place. Then, the vertical moving hydraulic cylinder 506 drives the output end to extend, which drives the workpiece placement table 507 to move into place, thus completing the upper workpiece. The vertical moving hydraulic cylinder 506 drives the output end to reset, causing the workpiece placement table 507 to move into position. The horizontal moving hydraulic cylinder 502 drives the output end to reset, causing the moving seat 505 to move into position, thus completing the unloading of the workpiece.

[0030] Specifically, the active drive assembly for clamping the upper and lower workpieces includes four lower support arms 601 fixed to the four corner side walls of the workpiece placement table 507. A lower pressing rod 602 is movably arranged on the lower support arm 601 corresponding to the position of the movable rod 403. A movable seat 603 is fixed to the bottom end of the lower pressing rod 602. A lower connecting spring 604 is sleeved on the lower pressing rod 602, with its two ends fixed to the bottom end of the lower support arm 601 and the top end of the movable seat 603, respectively. An electromagnet 605 and an iron block 606 for driving the lower pressing rod 602 to rise and fall are fixed to the lower support arm 601 and the movable seat 603 at corresponding positions close to each other on the side walls.

[0031] See appendix Figure 2 The upper and lower workpiece clamping active drive assembly consists of four electromagnets 605 energized to attract four iron blocks 606, which in turn move four movable seats 603 upwards. These movable seats 603 then move four lower pressing rods 602 upwards to their positions, moving with the workpiece placement table 507. During this movement, the four lower pressing rods 602 contact and press the four movable rods 403 before the workpiece placement table 507 is reached, causing the four clamping jaws 302 to rotate outwards and release. At this point, the ultra-thin tinplate workpiece on the workpiece placement table 507 is tightly pressed against the lower die base 20. 6. When the ultra-thin tin can workpiece falls onto the workpiece placement platform 507, after the ultra-thin tin workpiece on the workpiece placement platform 507 is in close contact with the lower mold base 206, the four electromagnets 605 are de-energized, the four movable seats 603 are reset under the reset action of the four lower connecting springs 604, which drives the four lower extrusion rods 602 to reset, and the four movable rods 403 reset after losing the extrusion force, which drives the four clamping claws 302 to rotate inward, in a state of clamping the ultra-thin tin workpiece, thus completing the active drive of releasing or clamping the upper and lower workpieces.

[0032] Specifically, the stamping die base assembly includes a stamping hydraulic cylinder 701 fixed to the top of the top frame 104 and two guide columns 703 symmetrically fixed to the bottom of the top frame 104 and the top of the support frame 201. The output end of the stamping hydraulic cylinder 701 extends into the top frame 104 and is fixed to an upper die base 702. A guide sleeve 704 is movably sleeved on the guide column 703 and is fixed to the upper die base 702.

[0033] See appendix Figure 3 The stamping die base assembly is driven by the stamping hydraulic cylinder 701 to extend the output end, which drives the upper die base 702 to move downward. The upper die base 702 is in close contact with the lower die base 206 to stamp the ultra-thin tinplate workpiece into an ultra-thin tinplate can workpiece, thus completing the stamping of the upper die base 702. During the movement, the synchronous movement of the two guide sleeves 704 on the two guide posts 703 completes the guidance, realizing precision stamping.

[0034] Specifically, the active drive assembly for clamping stamped workpieces includes four upper support arms 801 fixed to the outer wall of the upper die base 702, and upper extrusion rods 802 are fixed to the upper support arms 801 at the positions corresponding to the movable rods 403.

[0035] See appendix Figure 3 The stamping workpiece clamping active drive assembly consists of four upper extrusion rods 802 that move with the upper die base 702 and first contact the upper die base 702 to extrude the four movable rods 403, which drives the four clamping claws 302 to rotate outward and into a released state to avoid affecting the stamping process. The four upper extrusion rods 802 reset with the upper mold base 702, the four movable rods 403 lose the extrusion force, and drive the four clamping claws 302 to rotate inward, so as to clamp the ultra-thin tin can workpiece, which facilitates the removal of the ultra-thin tin can workpiece.

[0036] A forming process for ultra-thin tin cans includes the following steps: The motor 202 drives the output end to rotate, which in turn drives the connected rotating shaft 203 to rotate. The connected rotating shaft 203 drives the support base 205 to rotate, and the support base 205 drives the lower mold base 206 to rotate, thus completing the lower mold base 206 to flip down into place. The robotic arm places the ultra-thin tinplate workpiece onto the workpiece placement platform 507. The horizontally moving hydraulic cylinder 502 extends its output end, causing the movable seat 505 to move towards the lower mold base 206. Once in position, four electromagnets 605 are energized to attract four iron blocks 606, causing four movable seats 603 to move upwards. These movable seats 603 then move four lower extrusion rods 602 upwards to their positions. The vertically moving hydraulic cylinder 506 extends its output end, causing the workpiece placement platform 507 to move towards the lower mold base 206. During this movement, the four lower extrusion rods 602 first contact and extrude the ultra-thin tinplate workpiece on the workpiece placement platform 507, pressing against the four movable rods 403. Under the extrusion force, the four movable rods 403 move upwards, causing four connecting frames 404 to move upwards. The four connecting frames 404 then move four racks 406 upwards. During this upward movement, the four racks 406 drive four gears 401 to rotate outwards. Two follower shafts 301 rotate outward, driving four clamping jaws 302 to rotate outward. After moving into position, the four clamping jaws 302 are in a released state, and the ultra-thin tinplate workpiece is tightly attached to the lower mold base 206. The four electromagnets 605 are de-energized, and the four movable seats 603 are reset under the reset action of the four lower connecting springs 604, driving the four lower pressing rods 602 to reset. The four movable rods 403 lose their pressing force and are reset under the reset action of the four upper connecting springs 405. The four movable rods 403 drive the four connecting frames 404 to reset, and the four connecting frames 404 drive the four racks 406 to reset. During the reset process, the four racks 406 drive the two follower shafts 301 to rotate inward, driving the four clamping jaws 302 to rotate inward. After resetting to the correct position, the four clamping jaws 302 are in a clamping state for the ultra-thin tinplate workpiece. The vertical moving hydraulic cylinder 506 and the horizontal moving hydraulic cylinder 502 are reset, completing the upper workpiece positioning. The motor 202 drives the output end to rotate, which in turn drives the connected rotating shaft 203 to rotate. The connected rotating shaft 203 drives the support base 205 to rotate, the support base 205 drives the lower mold base 206 to rotate, and the lower mold base 206 drives the ultra-thin tinplate workpiece to rotate, thus completing the upward flipping of the ultra-thin tinplate workpiece into place. The stamping hydraulic cylinder 701 extends its output end, causing the upper die holder 702 to move downwards. During this movement, the four upper extrusion rods 802 first contact the upper die holder 702 with the four movable rods 403. Under the extrusion force, the four movable rods 403 move downwards, causing the four connecting frames 404 to move downwards. The four connecting frames 404 then cause the four racks 406 to move downwards. As the racks 406 move downwards, they cause the four gears 401 to rotate outwards. The four gears 401 then cause the two follower shafts 301 to rotate outwards. The two follower shafts 301 then cause the four clamping jaws 302 to rotate outwards. After moving into position, the four clamping jaws 302 are in the released state, and the upper die holder 702... 02. The ultra-thin tinplate workpiece is stamped into an ultra-thin tinplate can workpiece by pressing it against the lower die base 206. The stamping hydraulic cylinder 701 is reset, which drives the four upper extrusion rods 802 to reset. The four movable rods 403 lose the extrusion force and are reset under the action of the four upper connecting springs 405. The four movable rods 403 drive the four connecting frames 404 to reset. The four connecting frames 404 drive the four racks 406 to reset. During the reset process, the four racks 406 drive the two follower shafts 301 to rotate inward. The two follower shafts 301 drive the four clamping claws 302 to rotate inward. After resetting to the position, the four clamping claws 302 are in the state of clamping the ultra-thin tinplate can workpiece, and the stamping is completed. The motor 202 drives the output end to rotate, which in turn drives the connected rotating shaft 203 to rotate. The connected rotating shaft 203 drives the support base 205 to rotate, the support base 205 drives the lower mold base 206 to rotate, and the lower mold base 206 drives the ultra-thin tin can workpiece to rotate, thus completing the ultra-thin tin can workpiece to be flipped into place. The horizontal moving hydraulic cylinder 502 extends its output end, causing the moving seat 505 to move towards the lower mold base 206. Once in position, the four electromagnets 605 are energized, attracting the four iron blocks 606, which in turn move the four movable seats 603 upwards. These movable seats 603 then move the four lower extrusion rods 602 upwards to their positions. The vertical moving hydraulic cylinder 506 extends its output end, causing the workpiece placement table 507 to move towards the lower mold base 206. During this movement, the four lower extrusion rods 602 first contact and extrude the four movable rods 403 with the workpiece placement table 507. Under the extrusion force, the four movable rods 403 move upwards, driving the four connecting rods... The frame 404 moves upward, and the four connecting frames 404 drive the four racks 406 to move upward. During the upward movement of the four racks 406, the four gears 401 drive the four gears 401 to rotate outward. The four gears 401 drive the two follower shafts 301 to rotate outward. The two follower shafts 301 drive the four gripping claws 302 to rotate outward. After moving into position, the four gripping claws 302 are in the released state, and the ultra-thin tin can workpiece falls onto the workpiece placement platform 507. The vertical moving hydraulic cylinder 506 and the horizontal moving hydraulic cylinder 502 are reset, and the workpiece lowering robot arm removes the ultra-thin tin can workpiece from the workpiece placement platform 507, completing the workpiece lowering process. Repeat the above steps until all ultra-thin tin cans are produced.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A forming apparatus for ultra-thin tin cans, characterized in that, include: Rack components; A flip-type die holder assembly is mounted on the frame assembly. The position of the die holder is switched by flipping to switch between upper and lower workpieces or for stamping. A clamping assembly, assembled on the flip-type mold base assembly, clamps the workpiece on the flip-type mold base assembly; A clamping follow-up drive component is assembled on the flip-type mold base assembly, and drives the clamping component to clamp or release the workpiece according to the actual needs of the workpiece. The upper and lower workpiece assembly is assembled on the frame assembly for loading and unloading workpieces. An active drive assembly for clamping and releasing workpieces is mounted on the workpiece assembly and works in conjunction with the clamping follow-up drive assembly. It drives the clamping assembly to clamp or release the workpieces according to the actual needs of the workpieces so that the workpieces can be moved up and down. A stamping die base assembly is assembled on the frame assembly and cooperates with the flipping die base assembly to form ultra-thin tin cans by stamping. A stamping workpiece clamping active drive assembly is assembled on the upper and lower workpiece assemblies and cooperates with the clamping follow-up drive assembly. According to the actual needs of the workpiece, the clamping assembly is driven to clamp or release the workpiece so as to stamp the workpiece. The control component, a controller (901) mounted on the frame assembly, controls the actions of each component to complete the upper workpiece, workpiece stamping and lower workpiece of the ultra-thin tin can.

2. The forming apparatus for an ultra-thin tin can according to claim 1, characterized in that: The frame assembly includes a base frame (101), with support columns (102) fixedly connected to the four corners of the top of the base frame (101), an intermediate frame (103) fixedly connected to the top of the four support columns (102), a top frame (104) fixedly connected to one side of the top of the intermediate frame (103), and a controller (901) fixedly connected to the top frame (104).

3. The forming apparatus for an ultra-thin tin can according to claim 2, characterized in that: The flip-type mold base assembly includes two inverted U-shaped support frames (201) disposed on the top of the intermediate frame (103) away from the top frame (104). The two support frames (201) are parallel to the vertical section of the top frame (104). A motor (202) is fixedly connected to the side wall of the support frame (201) away from the top frame (104). Rotating shafts (203) are respectively disposed on the side of the two support frames (201) close to each other. The two rotating shafts (203) are respectively connected to the output end of the motor (202) through couplings and connected to the adjacent support frame (201) through bearings. Rotating frames (204) are respectively fixedly connected to the side wall of the two rotating shafts (203) close to each other. A support base (205) is fixedly connected between the two rotating frames (204). A lower mold base (206) is fixedly connected to the top of the support base (205).

4. The forming apparatus for an ultra-thin tin can according to claim 3, characterized in that: The clamping assembly includes two follower shafts (301) symmetrically connected between two rotating frames (204) via bearings. The two follower shafts (301) are located on both sides of the support base (205). Two clamping claws (302) are symmetrically fixed on the follower shafts (301), and the clamping ends of the clamping claws (302) face the lower mold base (206).

5. The forming apparatus for an ultra-thin tin can according to claim 4, characterized in that: The clamping follow-up drive assembly includes two gears (401) symmetrically fixedly sleeved on the follow-up shaft (301) and two movable through slots (402) symmetrically opened on the rotating frame (204). The two gears (401) are located on the outside of the two clamping claws (302). A movable rod (403) is movably arranged inside the movable through slot (402). A connecting frame (404) is fixedly connected to the bottom end of the movable rod (403). An upper connecting spring (405) is sleeved on the movable rod (403), with its two ends fixedly connected to the bottom end of the rotating frame (204) and the top end of the connecting frame (404) respectively. A rack (406) is fixedly connected to the top end of the connecting frame (404) away from the movable rod (403). The rack (406) meshes with the adjacent gear (401).

6. The forming apparatus for an ultra-thin tin can according to claim 5, characterized in that: The upper and lower workpiece assembly includes an installation through slot (501) opened inside the middle frame (103) on the side away from the two support frames (201) and a moving through slot (503) opened between the two support frames (201) on the middle frame (103). A transverse moving hydraulic cylinder (502) is fixedly connected inside the installation through slot (501). Two guide rods (504) are symmetrically fixed inside the moving through slot (503). A moving seat (505) is movably sleeved on the two guide rods (504) through openings. The output end of the transverse moving hydraulic cylinder (502) is fixedly connected to the moving seat (505). A vertical moving hydraulic cylinder (506) is fixedly connected to the bottom end of the moving seat (505). The output end of the vertical moving hydraulic cylinder (506) extends to the top of the moving seat (505) and is fixedly connected to a workpiece placement table (507).

7. The forming apparatus for an ultra-thin tin can according to claim 6, characterized in that: The upper and lower workpiece clamping active drive assembly includes four lower support arms (601) fixed to the four corner side walls of the workpiece placement table (507). The lower support arms (601) are movably provided with lower pressing rods (602) corresponding to the positions of the movable rods (403). The bottom end of the lower pressing rods (602) is fixed to a movable seat (603). The lower pressing rods (602) are sleeved with lower connecting springs (604) whose two ends are fixed to the bottom end of the lower support arms (601) and the top end of the movable seat (603) respectively. The lower support arms (601) and the movable seat (603) are respectively fixed to the corresponding positions of the side walls close to each other, with electromagnets (605) and iron blocks (606) fixed to drive the lower pressing rods (602) to rise and fall.

8. The forming apparatus for an ultra-thin tin can according to claim 7, characterized in that: The stamping die base assembly includes a stamping hydraulic cylinder (701) fixed to the top of the top frame (104) and two guide columns (703) symmetrically fixed to the bottom of the top frame (104) and the top of the support frame (201). The output end of the stamping hydraulic cylinder (701) extends into the top frame (104) and is fixed to an upper die base (702). A guide sleeve (704) is movably sleeved on the guide column (703) and is fixed to the upper die base (702).

9. The forming apparatus for an ultra-thin tin can according to claim 8, characterized in that: The active drive assembly for clamping the stamped workpiece includes four upper support arms (801) fixed to the outer wall of the upper die base (702), and upper extrusion rods (802) are fixed to the upper support arms (801) at the positions corresponding to the movable rods (403).

10. The forming process of an ultra-thin tin can according to claim 9, characterized in that, Includes the following steps: The motor (202) drives the output end to rotate, which in turn drives the connected rotating shaft (203) to rotate. The connected rotating shaft (203) drives the support base (205) to rotate, and the support base (205) drives the lower mold base (206) to rotate, thus completing the lower mold base (206) to flip down into place. The upper workpiece robotic arm places the ultra-thin tinplate workpiece on the workpiece placement table (507). The horizontal moving hydraulic cylinder (502) drives the output end to extend, causing the moving seat (505) to move towards the lower mold base (206). After moving into position, four electromagnets (605) are energized to attract four iron blocks (606), causing four movable seats (603) to move upward. The four movable seats (603) drive four lower extrusion rods (602) to move upward and extend into position. The vertical moving hydraulic cylinder (506) drives the output end to extend, causing the workpiece placement table (507) to move upward and extend into position. 507) Move towards the lower die base (206). During the movement, the four lower extrusion rods (602) first contact the ultra-thin tinplate workpiece on the workpiece placement table (507) with the four movable rods (403). Under the extrusion force, the four movable rods (403) move upward, driving the four connecting frames (404) to move upward. The four connecting frames (404) drive the four racks (406) to move upward. During the upward movement of the four racks (406), they drive the four gears (401) to rotate outward. The four gears (401) drive... Two follower shafts (301) rotate outward, driving four clamping jaws (302) to rotate outward. After moving into position, the four clamping jaws (302) are in a released state, and the ultra-thin tinplate workpiece is tightly attached to the lower mold base (206). The four electromagnets (605) are de-energized, and the four movable seats (603) are reset under the reset action of the four lower connecting springs (604), driving the four lower extrusion rods (602) to reset. The four movable rods (403) lose their extrusion force and are reset under the reset action of the four upper connecting springs (405). When the bottom is reset, the four movable rods (403) drive the four connecting brackets (404) to reset, the four connecting brackets (404) drive the four racks (406) to reset, and the four racks (406) drive the two follower shafts (301) to rotate inward during the reset process. The two follower shafts (301) drive the four clamping claws (302) to rotate inward. After the reset is in place, the four clamping claws (302) are in the state of clamping the ultra-thin tinplate workpiece. The vertical moving hydraulic cylinder (506) and the horizontal moving hydraulic cylinder (502) are reset, and the upper workpiece is in place. The motor (202) drives the output end to rotate, which in turn drives the connected rotating shaft (203) to rotate. The connected rotating shaft (203) drives the support base (205) to rotate. The support base (205) drives the lower mold base (206) to rotate. The lower mold base (206) drives the ultra-thin tinplate workpiece to rotate, thus completing the ultra-thin tinplate workpiece flipping into place. The stamping hydraulic cylinder (701) drives the output end to extend, causing the upper die base (702) to move downward. During the movement, the four upper extrusion rods (802) first contact the upper die base (702) to extrude the four movable rods (403). Under the extrusion force, the four movable rods (403) move downward, causing the four connecting frames (404) to move downward. The four connecting frames (404) drive the four racks (406) to move downward. During the downward movement of the four racks (406), the four gears (401) drive the four gears (401) to rotate outward. The four gears (401) drive the two follower shafts (301) to rotate outward. The two follower shafts (301) drive the four clamping claws (302) to rotate outward. After moving into position, the four clamping claws (302) are in the released state, and the upper die base... (702) The ultra-thin tinplate workpiece is stamped into an ultra-thin tinplate can workpiece by closely adhering to the lower die base (206). The stamping hydraulic cylinder (701) is reset, which drives the four upper extrusion rods (802) to reset. The four movable rods (403) lose the extrusion force and are reset under the reset action of the four upper connecting springs (405). The four movable rods (403) drive the four connecting frames (404) to reset. The four connecting frames (404) drive the four racks (406) to reset. During the reset process of the four racks (406), the two follower shafts (301) are driven to rotate inward. The two follower shafts (301) drive the four clamping claws (302) to rotate inward. After the reset is in place, the four clamping claws (302) are in the state of clamping the ultra-thin tinplate can workpiece, and the stamping is completed. The motor (202) drives the output end to rotate, which in turn drives the connected rotating shaft (203) to rotate. The connected rotating shaft (203) drives the support base (205) to rotate. The support base (205) drives the lower mold base (206) to rotate. The lower mold base (206) drives the ultra-thin tin can workpiece to rotate, thus completing the ultra-thin tin can workpiece to be flipped into place. The horizontal moving hydraulic cylinder (502) extends its output end, causing the moving seat (505) to move towards the lower mold base (206). After moving into position, the four electromagnets (605) are energized to attract the four iron blocks (606), causing the four movable seats (603) to move upward. The four movable seats (603) then cause the four lower extrusion rods (602) to move upward and extend into position. The vertical moving hydraulic cylinder (506) extends its output end, causing the workpiece placement table (507) to move towards the lower mold base (206). During the movement, the four lower extrusion rods (602) contact and extrude the four movable rods (403) before the workpiece placement table (507). Under the extrusion force, the four movable rods (403) move upward, causing the four connecting rods to move upward. The connecting frame (404) moves upward, and the four connecting frames (404) drive the four racks (406) to move upward. During the upward movement of the four racks (406), the four gears (401) drive the four gears (401) to rotate outward. The four gears (401) drive the two follower shafts (301) to rotate outward. The two follower shafts (301) drive the four clamping claws (302) to rotate outward. After moving to the position, the four clamping claws (302) are in the released state, and the ultra-thin tin can workpiece falls onto the workpiece placement platform (507). The vertical moving hydraulic cylinder (506) and the horizontal moving hydraulic cylinder (502) are reset. The workpiece lowering robot arm removes the ultra-thin tin can workpiece from the workpiece placement platform (507) and completes the workpiece lowering process. Repeat the above steps until all ultra-thin tin cans are produced.

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