Stamping device for can cover production

Abstract

The invention relates to the technical field of stamping devices, and discloses a stamping device for tank cover production, which comprises a bearing base, a movable die mechanism and a fixed die mechanism for stamping a tank cover are arranged on the bearing base, a driving mechanism for driving a movable die to reciprocate is arranged on the bearing base, a stamping box is arranged on the bearing base, a raw material inlet is formed in the upper end of the stamping box, and a raw material outlet is formed in the lower end of the stamping box. A waste outlet and a finished product outlet are formed in the lower end of the stamping box, an unwinding mechanism which moves along with the driving mechanism to intermittently drive the raw material winding drum to rotate is arranged on the stamping box, and a leveling mechanism which moves along with the driving mechanism to intermittently level the raw material winding drum is arranged in the stamping box; the driving mechanism drives the movable die mechanism and the fixed die mechanism to cooperate to complete stamping operation and drives the unwinding mechanism and the leveling mechanism to complete feeding and leveling of raw material rolls at the same time, the structural integrity is high, the production efficiency is improved, the maintenance and repair cost is reduced, the energy utilization rate is improved, and the production cost of tank covers is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping devices, and specifically refers to a stamping device for can lid production. Background Art

[0002] In recent years, with the rapid development of industries such as food and beverage, pharmaceutical and chemical industries, metal packaging containers have become the mainstream choice due to their excellent sealing performance, durability and recyclability. As the core component of packaging containers, the manufacturing quality of can lids directly affects product safety and user experience. Currently, aluminum alloy has become the preferred material for can lid manufacturing due to its unique material advantages (such as light weight, high strength, corrosion resistance, easy processing and infinite recyclability). However, the high ductility and low yield strength characteristics of aluminum alloy are prone to cause problems such as springback deformation, edge cracking and surface scratching during stamping processing. Traditional stamping equipment is mostly designed for steel, and its rigid stamping mode is difficult to adapt to the dynamic deformation characteristics of aluminum alloy, resulting in insufficient matching between the die and the material during the stamping process, and defects such as dimensional deviation and uneven sealing surface are likely to occur in the finished product. In addition, aluminum alloy coils are prone to wrinkles or local deformation due to uneven tension during continuous feeding. If there is no efficient leveling before stamping, it will further exacerbate the yield fluctuation of stamping products and increase production costs.

[0003] Currently, the common stamping devices for can lids generally have the defects of single function and insufficient process coordination. Most devices use independently driven feeding, leveling and stamping modules, resulting in difficult to accurately match the rhythms of each link. For example, the feeding mechanism mostly moves continuously at a constant speed, while the stamping process requires intermittent pauses. The rhythm difference between the two is likely to cause the accumulation or excessive stretching of aluminum alloy coils, exacerbating material stress concentration. At the same time, due to the lack of linkage with the stamping action, the leveling mechanism cannot eliminate the microscopic deformation of the coil caused by temperature changes or mechanical vibrations in real time, affecting stamping consistency. In addition, the traditional die fixing method is too rigid to adapt to the elastic recovery after aluminum alloy stamping, and it is necessary to frequently stop the machine to adjust the die gap, which seriously restricts production efficiency. The industry urgently needs a highly integrated and intelligent collaborative stamping device. Through multi-mechanism dynamic linkage, adaptive die compensation and precise tension control, it breaks through the bottleneck of high-precision and high-efficiency production of aluminum alloy can lids and meets the requirements of green manufacturing and large-scale cost reduction. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a stamping device for can lid production.

[0005] To solve the above technical problems, the technical solution provided by the present invention is: a stamping device for can lid production, including a supporting base. A moving die mechanism and a fixed die mechanism for stamping can lids are provided on the supporting base. A driving mechanism for driving the reciprocating movement of the moving die mechanism is provided on the supporting base. A stamping box is provided on the supporting base. A raw material inlet is provided at the upper end of the stamping box, and a waste outlet and a finished product outlet are provided at the lower end of the stamping box. The driving mechanism includes a driving chute provided on the stamping box. A driving slider is slidably provided in the driving chute. One end of the driving slider is provided with a driving column connected to the moving die mechanism, and the other end of the driving slider is rotatably provided with a driving connecting plate. A driving disc is rotatably provided on the stamping box. An eccentric column rotatably connected to the driving connecting plate is eccentrically provided on one side of the driving disc. A mating sheave is provided on the other side of the driving disc. A driving motor is provided on the stamping box. A driving sheave is provided at the output end of the driving motor. A driving belt is provided between the driving sheave and the mating sheave. A unwinding mechanism for intermittently driving the rotation of the raw material reel as the driving slider moves is provided on the stamping box. A leveling mechanism for intermittently leveling the raw material roll as the driving slider moves is provided inside the stamping box.

[0006] As an improvement, a driving plug plate and a mating plug plate are provided on the driving slider. Both the driving plug plate and the mating plug plate are wedge-shaped structures. A linkage column for driving the movement of the unwinding mechanism and the leveling mechanism is rotatably provided on the stamping box. One end of the linkage column is provided with a linkage disc. A plurality of linkage keys are equidistantly provided along the circumferential direction on the linkage disc. The linkage keys are respectively in sliding fit with the driving plug plate and the mating plug plate.

[0007] As an improvement, the unwinding mechanism includes an unwinding rotating column rotatably provided on the stamping box. One end of the unwinding rotating column is provided with an unwinding sliding column, and the other end of the unwinding rotating column is provided with a connecting sheave. A clamping mechanism for clamping the raw material reel is provided on the stamping box. The clamping mechanism is in sliding fit with the unwinding sliding column. One end of the linkage column is provided with an unwinding sheave. An unwinding belt is provided between the unwinding sheave and the connecting sheave.

[0008] As an improvement, the clamping mechanism includes unwinding sliders symmetrically and slidably provided on the stamping box. An unwinding connecting rod is rotatably provided on the unwinding slider. One end of the unwinding connecting rod is provided with an unwinding insertion block for cooperating with the raw material reel, and the other end of the unwinding connecting rod is provided with an unwinding insertion slot in sliding fit with the unwinding sliding column. An unwinding column is provided on one side of the unwinding slider. A positioning frame is slidably provided on the stamping box. Symmetric positioning chutes in sliding fit with the unwinding column are provided on the positioning frame. The positioning chutes are inclined. A positioning screw rod in threaded fit with the positioning frame is rotatably provided on the stamping box. The positioning screw rod is driven by a motor.

[0009] As an improvement, the moving die mechanism includes a moving die holder and a moving die module group. The moving die holder is connected to the driving column. A plurality of groups of the moving die module groups are slidably arranged on the moving die holder. The fixed die mechanism includes a fixed die holder and a fixed die module group. A plurality of groups of the fixed die module groups are slidably arranged on the fixed die holder. Limiting holes are provided on both the moving die holder and the fixed die holder. Limiting mechanisms for cooperation and limitation with the limiting holes are provided on both the moving die module group and the fixed die module group.

[0010] As an improvement, the limiting mechanism includes a limiting sleeve fixedly arranged on the moving die module or the fixed die module. A limiting cavity is arranged inside the limiting sleeve. A limiting sliding plate is slidably arranged inside the limiting cavity. The limiting sliding plate includes a wedge-shaped sliding plate and a connecting inclined plate. The wedge-shaped sliding plates are symmetrically arranged at both ends of the connecting inclined plate. A limiting pull rod is slidably inserted into the limiting sleeve. A limiting inclined groove for sliding cooperation with the connecting inclined plate is arranged on the limiting pull rod. A limiting cover is slidably arranged inside the limiting hole. A wedge-shaped inclined plate for sliding cooperation with the wedge-shaped sliding block is arranged on the limiting cover. A limiting spring connected to the limiting cover is arranged at the upper end of the limiting pull rod.

[0011] As an improvement, the moving die module group includes a moving die slider slidably matched with the moving die holder. A moving die expansion joint is arranged on the moving die slider. A moving die pressing plate is arranged at the telescopic end of the moving die expansion joint. A moving die spring is sleeved on the moving die expansion joint. A moving die pressing block is arranged on the moving die slider. A spring block support is slidably arranged on the moving die slider. A moving die spring block is arranged at one end of the spring block support extending into the moving die pressing block. A spring block spring connected to the moving die slider is arranged on the moving die spring block.

[0012] As an improvement, the fixed die module group includes a fixed die slider slidably matched with the fixed die holder. A fixed die top block for cooperation with the moving die pressing block is arranged on the fixed die slider. A fixed die baffle is arranged on the fixed die slider. A fixed die expansion joint is arranged on the fixed die baffle. A fixed die sliding plate is arranged at the telescopic end of the fixed die expansion joint. A fixed die spring is sleeved on the fixed die expansion joint. A fixed die sliding rod for sliding cooperation with the fixed die slider is arranged on the positioning sliding plate. A fixed die spring block for sliding cooperation with the fixed die top block is arranged on the fixed die sliding rod.

[0013] As an improvement, the leveling mechanism includes a feeding guide roller, a leveling guide roller and a material pressing guide roller rotatably arranged on the stamping box. The feeding guide rollers are symmetrically arranged on both sides of the raw material inlet. The material pressing guide roller and the leveling guide roller are arranged alternately. A synchronous grooved pulley is arranged at one end of the material pressing guide roller extending out of the stamping box. A synchronous belt is arranged between adjacent two groups of synchronous grooved pulleys. A conversion grooved pulley is arranged on one side of the synchronous grooved pulley. A rotating grooved pulley is rotatably arranged on the stamping box. A power grooved pulley is arranged on one side of the rotating grooved pulley. A rotating belt is arranged between the power grooved pulley and the conversion grooved pulley. A leveling grooved pulley is arranged on the linkage column. A leveling belt is arranged between the leveling grooved pulley and the rotating grooved pulley.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the driving mechanism can not only drive the movable die mechanism and the fixed die mechanism to cooperate to complete the stamping operation, but also drive the unwinding mechanism and the leveling mechanism to intermittently move during the movement to complete the feeding and leveling of the raw materials. The structural integrity is high, the production efficiency of the can cover is improved, the setting of the power components is reduced, and the maintenance and repair costs are reduced, the energy utilization rate is improved, and the production cost of the can cover is reduced. Specifically: 1. During the reciprocating motion of the driving slider, the driving plug plate and the matching plug plate contact the linkage key in turn. When the driving plug plate contacts the linkage key, the matching plug plate separates from the linkage key, and the inclined surface of the driving plug plate with a wedge-shaped structure first contacts the linkage key and drives the linkage disk to rotate through the linkage key. Then, the plane of the driving plug plate contacts the linkage key, and the linkage disk remains stationary at this time. Then, the driving plug plate moves away from the linkage key, and the linkage disk remains stationary at this time. Then, the inclined surface of the matching plug plate with a wedge-shaped structure contacts the linkage key and drives the linkage disk to rotate through the linkage key. Then, the plane of the matching plug plate with a wedge-shaped structure contacts the linkage key, and the linkage disk remains stationary at this time, thereby driving the linkage disk to perform intermittent circular motion through the reciprocating linear motion of the driving slider, which is convenient for driving the raw material reel to rotate, thereby conveniently performing feeding and leveling operations, reducing the setting of power components through the linkage between components, reducing the cost of repair and maintenance, reducing failure downtime, and reducing the production cost of can covers; 2. When the positioning frame slides upward, the positioning frame drives the positioning slide slot to move upward synchronously. With the cooperation of the unwinding column, the two groups of symmetrically arranged unwinding sliders approach each other, and the unwinding connecting rod drives the unwinding plug block and the unwinding slot to move synchronously. The unwinding plug block is inserted into the raw material roll to clamp and fix the raw material roll. At this time, the unwinding groove wheel can drive the connecting groove wheel to rotate through the unwinding belt, and the connecting groove wheel drives the unwinding sliding column to rotate. The unwinding sliding column drives the unwinding connecting rod to rotate through the unwinding slot that slides with it, and the unwinding connecting rod drives the raw material roll to rotate through the unwinding plug block. The unwinding plug block can drive the raw material roll to rotate after clamping and fixing the raw material roll. The operation is simple and convenient, which improves the speed of replacing the raw material roll, reduces downtime, and improves the production efficiency of the can cover. 3. Push the limit rod upwards, and the limit rod drives the connecting inclined plate to slide to the right through the limit inclined groove, the wedge-shaped slider squeezes the wedge-shaped inclined plate, and the wedge-shaped inclined plate drives the limit cover to move downward, the limit cover and the limit rod approach each other and squeeze the limit spring, the limit spring contracts and accumulates force, the limit cover is separated from the limit hole, the movable mold module can slide freely along the movable mold frame, and the fixed mold module can slide freely along the fixed mold frame, so that the movable mold module and the fixed mold module can be freely adjusted according to the size and quality of the raw material roll, thereby improving the convenience of use, and then, relax the limit rod, the limit spring drives the limit cover to insert into the limit hole, at the same time, because it adopts the form of upward unlocking, which is opposite to the conventional way of downward unlocking, through the anti-foolproof setting, it can avoid the operator's misoperation and improve the safety of use. Brief Description of the Drawings

[0015] Figure 1 is a schematic structural view of a stamping device for producing can lids according to the present invention.

[0016] Figure 2 is an exploded view of a stamping device for producing can lids according to the present invention.

[0017] Figure 3 is a sectional view of a stamping device for producing can lids according to the present invention.

[0018] Figure 4 is a schematic structural view of a driving mechanism of a stamping device for producing can lids according to the present invention.

[0019] Figure 5 is an exploded view of a driving mechanism of a stamping device for producing can lids according to the present invention.

[0020] Figure 6 is a sectional view of a driving mechanism of a stamping device for producing can lids according to the present invention.

[0021] Figure 7 is an exploded view of a unwind mechanism of a stamping device for producing can lids according to the present invention.

[0022] Figure 8 is a sectional view of a fixed sleeve part of a stamping device for producing can lids according to the present invention.

[0023] Figure 9 is an exploded view of a moving die mechanism of a stamping device for producing can lids according to the present invention.

[0024] Figure 10 is a sectional view of a moving die module of a stamping device for producing can lids according to the present invention.

[0025] Figure 11 is a stamping device for producing can lids according to the present invention Figure 10 The enlarged view of part A.

[0026] Figure 12 is an exploded view of a limiting mechanism of a stamping device for producing can lids according to the present invention.

[0027] Figure 13 is a sectional view of a fixed die mechanism of a stamping device for producing can lids according to the present invention.

[0028] Figure 14 is a stamping device for producing can lids according to the present invention Figure 13 The enlarged view of part B.

[0029] Figure 15 is a schematic structural view of a flattening mechanism of a stamping device for producing can lids according to the present invention.

[0030] Figure 16 It is a cross-sectional view of the supporting base part of a stamping device for can lid production according to the present invention.

[0031] As shown in the figure: 1. Supporting base; 11. Stamping box; 12. Guide block; 13. Stamping baffle; 14. Scrap outlet; 15. Scrap guide roller; 16. Finished product outlet; 17. Finished product storage tank; 18. Raw material inlet; 2. Moving die mechanism; 21. Moving die frame; 22. Moving die module; 221. Moving die slider; 222. Moving die expansion joint; 223. Moving die spring; 224. Moving die pressing plate; 225. Moving die pressing block; 226. Moving die elastic block; 227. Elastic block spring; 228. Elastic block support; 23. Limiting mechanism; 231. Limiting sleeve; 232. Limiting pull rod; 2321. Limiting inclined groove; 233. Limiting sliding plate; 2331. Wedge-shaped slider; 2332. Connecting inclined plate; 234. Limiting cover; 235. Limiting spring; 236. Limiting cavity; 237. Wedge-shaped inclined plate; 24. Limiting hole; 3. Fixed die mechanism; 31. Fixed die frame; 32. Fixed die module; 321. Fixed die slider; 322. Fixed die ejector block; 323. Fixed die elastic block; 324. Fixed die slide bar; 325. Fixed die sliding plate; 326. Fixed die spring; 327. Fixed die baffle; 328. Fixed die expansion joint; 4. Driving mechanism; 41. Driving chute; 42. Driving slider; 421. Driving column; 422. Driving insertion plate; 423. Matching insertion plate; 424. Driving connecting plate; 43. Driving motor; 431. Driving grooved pulley; 432. Driving belt; 433. Driving disk; 434. Matching grooved pulley; 435. Eccentric column; 44. Linking column; 441. Linking disk; 442. Linking key; 443. Flattening grooved pulley; 444. Flattening belt; 445. Unwinding grooved pulley; 446. Unwinding belt; 5. Unwinding mechanism; 51. Unwinding slider; 511. Unwinding column; 52. Unwinding connecting rod; 521. Unwinding insertion block; 522. Unwinding insertion slot; 53. Unwinding rotating column; 531. Unwinding sliding column; 532. Connecting grooved pulley; 54. Positioning frame; 541. Positioning chute; 542. Positioning screw; 55. Fixed sleeve; 551. Fixed slide bar; 552. Support frame; 553. Pressing guide roller; 554. Fixed spring; 6. Flattening mechanism; 61. Feeding guide roller; 62. Flattening guide roller; 621. Synchronous grooved pulley; 622. Synchronous belt; 63. Pressing material guide roller; 64. Power grooved pulley; 641. Rotating belt; 642. Rotating grooved pulley; 643. Conversion grooved pulley. Detailed implementation manners

[0032] The present invention will be further described in detail below with reference to the accompanying drawings.

[0033] Combined with the attached Figure 1 and the attached Figure 2 and the attached Figure 3 and the attached Figure 4As shown in the figure, a stamping device for can lid production includes a supporting base 1. A moving die mechanism 2 and a fixed die mechanism 3 for stamping can lids are provided on the supporting base 1. A driving mechanism 4 for driving the reciprocating movement of the moving die mechanism 2 is provided on the supporting base 1. A stamping box 11 is provided on the supporting base 1. A raw material inlet 18 is provided at the upper end of the stamping box 11. A waste outlet 14 and a finished product outlet 16 are provided at the lower end of the stamping box 11. A waste guiding roller 15 is rotatably provided on one side of the stamping box 11 close to the waste outlet 14. A finished product storage tank 17 cooperating with the finished product outlet 16 is movably provided on the stamping box 11. Guide blocks 12 are provided on both sides of the fixed die mechanism 3 in the stamping box 11, and the guide blocks 12 are of rounded corner structure. A unwinding mechanism 5 for intermittently driving the rotation of the raw material reel as the driving mechanism 4 moves is provided on the stamping box 11. A flattening mechanism 6 for intermittently flattening the raw material roll as the driving mechanism 4 moves is provided in the stamping box 11; In view of the characteristics of aluminum alloy coil materials, a temperature control module (not shown in the attached drawings) is added in the stamping box 11 of this device. The raw material temperature is monitored in real time through the built-in infrared sensor, and the air cooling system is used to maintain the aluminum alloy sheet in the optimal stamping temperature range of 20 - 30 °C, reducing the deformation caused by thermal stress.

[0034] The working principle of the present invention: The driving mechanism 4 drives the moving die mechanism 2 to periodically approach and move away from the fixed die mechanism 3. When the driving mechanism 4 drives the moving die mechanism 2 to approach the fixed die mechanism 3, first, the driving mechanism 4 drives the unwinding mechanism 5 and the flattening mechanism 6 to move. The unwinding mechanism 5 drives the rotation of the raw material reel. The raw material reel feeds the raw material into the stamping box 11 through the raw material inlet 18 and enters the flattening mechanism 6. The raw material entering the flattening mechanism 6 is flattened and then enters between the moving die mechanism 2 and the fixed die mechanism 3. Then, the moving die mechanism 2 and the fixed die mechanism 3 cooperate to stamp the raw material into a can lid. During stamping, the unwinding mechanism 5 and the flattening mechanism 6 remain stationary. After that, when the driving mechanism 4 drives the moving die mechanism 2 to move away from the fixed die mechanism 3, the moving die mechanism 2 drives the stamped can lid to move. The waste after stamping moves out of the stamping box 11 through the waste outlet 14, is guided by the waste guiding roller 15 and then enters the waste recycling mechanism for recycling. After the can lid is separated from the moving die mechanism 2, it falls under the action of gravity and moves to the finished product storage tank 17 through the finished product outlet 16 for storage. During this process, the unwinding mechanism 5 drives the rotation of the raw material reel. The raw material reel feeds the raw material into the stamping box 11 through the raw material inlet 18 and enters the flattening mechanism 6. The raw material entering the flattening mechanism 6 is flattened and then enters between the moving die mechanism 2 and the fixed die mechanism 3. Through the driving mechanism 4, not only can the moving die mechanism 2 be driven to move to complete the stamping operation, but also the unwinding mechanism 5 and the flattening mechanism 6 can be driven to intermittently move to complete the feeding and flattening of the raw material. The structural integrity is relatively high, reducing the setting of power components while reducing the maintenance and repair costs.

[0035] Combined with the attached Figure 3 、attached Figure 4 、attached Figure 5 、attachedFigure 6 As shown in the attached Figure 16 As shown, the driving mechanism 4 includes a driving chute 41 provided on the stamping box 11. A driving slider 42 is slidably arranged in the driving chute 41. One end of the driving slider 42 is provided with a driving column 421 connected to the moving die mechanism 2. The other end of the driving slider 42 is rotatably provided with a driving connecting plate 424. A driving disk 433 is rotatably arranged on the stamping box 11. An eccentric column 435 that is rotatably connected to the driving connecting plate 424 is eccentrically arranged on one side of the driving disk 433. A matching grooved wheel 434 is arranged on the other side of the driving disk 433. A driving motor 43 is provided on the stamping box 11. A driving grooved wheel 431 is provided at the output end of the driving motor 43. A driving belt 432 is arranged between the driving grooved wheel 431 and the matching grooved wheel 434; A driving inserting plate 422 and a matching inserting plate 423 are provided on the driving slider 42. Both the driving inserting plate 422 and the matching inserting plate 423 are wedge-shaped structures. A linkage column 44 that drives the unwinding mechanism 5 and the leveling mechanism 6 to move is rotatably arranged on the stamping box 11. One end of the linkage column 44 is provided with a linkage disk 441. A plurality of groups of linkage keys 442 are equidistantly arranged along the circumferential direction on the linkage disk 441. The linkage keys 442 are respectively in sliding fit with the driving inserting plate 422 and the matching inserting plate 423.

[0036] Working principle of the driving mechanism 4: When the driving motor 43 is started, the driving motor 43 drives the connected driving grooved wheel 431 to rotate. The driving grooved wheel 431 drives the matching grooved wheel 434 to rotate through the driving belt 432. The driving disk 433 connected to the matching grooved wheel 434 rotates synchronously. The eccentrically arranged eccentric column 435 drives the driving connecting plate 424 connected to it to move. Due to the sliding limit of the driving chute 41 on the driving slider 42 and the rotational fit between the driving connecting plate 424 and the driving slider 42, the driving slider 42 can perform reciprocating motion along the linear direction of the driving chute 41. Thus, driven by the driving column 421, the moving die mechanism 2 performs reciprocating motion; During the reciprocating motion of the driving slider 42 along the driving chute 41, the driving inserting plate 422 and the matching inserting plate 423 come into contact with the linkage keys 442 in sequence. When the driving inserting plate 422 contacts the linkage key 442, the matching inserting plate 423 separates from the linkage key 442. The inclined surface of the wedge-shaped driving inserting plate 422 first contacts the linkage key 442 and drives the linkage disk 441 to rotate through the linkage key 442. After that, the flat surface of the driving inserting plate 422 contacts the linkage key 442. At this time, the linkage disk 441 remains stationary, facilitating the stamping operation. Then, the driving inserting plate 422 moves away from the linkage key 442. At this time, the linkage disk 441 still remains stationary. After that, the inclined surface of the wedge-shaped matching inserting plate 423 contacts the linkage key 442 and drives the linkage disk 441 to rotate through the linkage key 442. Then, the flat surface of the wedge-shaped matching inserting plate 423 contacts the linkage key 442. At this time, the linkage disk 441 remains stationary, facilitating the discharging of the stamping finished product.

[0037] Combined with the attached Figure 3 , attached Figure 4 , attached Figure 7 , attached Figure 8 and attached Figure 16 As shown, the unwinding mechanism 5 includes an unwinding rotating column 53 rotatably arranged on the stamping box 11. One end of the unwinding rotating column 53 is provided with an unwinding sliding column 531. The unwinding sliding column 531 has a regular polygon structure. The other end of the unwinding rotating column 53 is provided with a connecting grooved pulley 532. A clamping mechanism for clamping the raw material reel is arranged on the stamping box 11. The clamping mechanism is slidably matched with the unwinding sliding column 531. One end of the linkage column 44 is provided with an unwinding grooved pulley 445. An unwinding belt 446 is arranged between the unwinding grooved pulley 445 and the connecting grooved pulley 532; The clamping mechanism includes unwinding sliders 51 symmetrically and slidably arranged on the stamping box 11. An unwinding connecting rod 52 is rotatably arranged on the unwinding slider 51. One end of the unwinding connecting rod 52 is provided with an unwinding insertion block 521 for cooperating with the raw material reel. The cross section of the unwinding insertion block 521 is a wedge-shaped structure. The other end of the unwinding connecting rod 52 is provided with an unwinding insertion slot 522 slidably matched with the unwinding sliding column 531. One side of the unwinding slider 51 is provided with an unwinding column 511. A positioning frame 54 is slidably arranged on the stamping box 11. Symmetrically arranged positioning sliding grooves 541 slidably matched with the unwinding column 511 are arranged on the positioning frame 54. The positioning sliding grooves 541 are inclined. A positioning screw rod 542 threadedly matched with the positioning frame 54 is rotatably arranged on the stamping box 11. The positioning screw rod 542 is driven by a motor; A fixed sleeve 55 is arranged on the stamping box 11. A fixed sliding rod 551 extending out of the fixed sleeve 55 is slidably arranged in the fixed sleeve 55. A fixed spring 554 connected to the fixed sliding rod 551 is arranged in the fixed sleeve 55. One end of the fixed sliding rod 551 extending out of the fixed sleeve 55 is provided with a support frame 552. The support frame 552 has a V-shaped structure. Pressing guide rollers 553 are symmetrically and rotatably arranged on the support frame 552.

[0038] Working principle of the unwinding mechanism 5: When it is necessary to clamp or release the raw material reel, the positioning screw 542 is rotated by the motor. The rotation of the positioning screw 542 drives the positioning frame 54 to slide along the stamping box 11. When the positioning frame 54 slides downward, the positioning frame 54 drives the positioning chute 541 to move downward synchronously. The positioning chute 541 drives two symmetrically arranged unwinding sliders 51 to move away from each other through the unwinding column 511. The unwinding connecting rod 52 drives the unwinding insert block 521 and the unwinding slot 522 to move synchronously. The unwinding insert block 521 disengages from the raw material reel. At this time, the raw material reel is placed on two symmetrically arranged pressing guide rollers 553, so that the raw material reel can be conveniently replaced. On the contrary, when the positioning frame 54 slides upward, the positioning frame 54 drives the positioning chute 541 to move upward synchronously. The positioning chute 541 drives two symmetrically arranged unwinding sliders 51 to approach each other through the unwinding column 511. The unwinding connecting rod 52 drives the unwinding insert block 521 and the unwinding slot 522 to move synchronously. The unwinding insert block 521 is inserted into the raw material reel to clamp and fix the raw material reel. At this time, the unwinding grooved pulley 445 can drive the connecting grooved pulley 532 to rotate through the unwinding belt 446. The connecting grooved pulley 532 drives the unwinding slide column 531 to rotate. The unwinding slide column 531 drives the unwinding connecting rod 52 to rotate through the unwinding slot 522 that is slidably matched with it. The unwinding connecting rod 52 drives the raw material reel to rotate through the unwinding insert block 521.

[0039] Combined with the attached Figure 3 、the attached Figure 4 、the attached Figure 9 、the attached Figure 10 、the attached Figure 11 、the attached Figure 12 、the attached Figure 13 、the attached Figure 14 and the attached Figure 16 As shown, the moving die mechanism 2 includes a moving die holder 21 and a moving die module 22. Multiple groups of moving die modules 22 are provided. The moving die holder 21 is connected to the driving column 421. Multiple groups of the moving die modules 22 are slidably provided on the moving die holder 21. The fixed die mechanism 3 includes a fixed die holder 31 and a fixed die module 32. Multiple groups of the fixed die modules 32 are slidably provided on the fixed die holder 31. The fixed die modules 32 are arranged corresponding to the moving die modules 22. Limit holes 24 are provided on both the moving die holder 21 and the fixed die holder 31. Limit mechanisms 23 for cooperating with and limiting the limit holes 24 are provided on both the moving die modules 22 and the fixed die modules 32; The limiting mechanism 23 includes a limiting sleeve 231 fixedly arranged on the moving die module 22 or the fixed die module 32. A limiting cavity 236 is arranged inside the limiting sleeve 231. A limiting slide plate 233 is slidably arranged inside the limiting cavity 236. The limiting slide plate 233 includes a wedge-shaped slide plate and a connecting inclined plate 2332. The wedge-shaped slide plates are symmetrically arranged at both ends of the connecting inclined plate 2332. A limiting pull rod 232 is slidably inserted into the limiting sleeve 231. A limiting inclined groove 2321 which is slidably matched with the connecting inclined plate 2332 is arranged on the limiting pull rod 232. A limiting cover 234 is slidably arranged inside the limiting hole 24. A wedge-shaped inclined plate 237 which is slidably matched with the wedge-shaped slide block 2331 is arranged on the limiting cover 234. A limiting spring 235 connected with the limiting cover 234 is arranged at the upper end of the limiting pull rod 232.

[0040] The working principle of the limiting mechanism 23: Push the limiting pull rod 232 upwards. The limiting pull rod 232 drives the connecting inclined plate 2332 to slide rightwards through the limiting inclined groove 2321. The wedge-shaped slide block 2331 moves synchronously. The wedge-shaped slide block 2331 extrudes the wedge-shaped inclined plate 237. The wedge-shaped inclined plate 237 drives the limiting cover 234 to move downwards synchronously. The limiting cover 234 and the limiting pull rod 232 approach and extrude the limiting spring 235 synchronously. The limiting spring 235 is stressed and contracts to store energy. When the limiting cover 234 disengages from the limiting hole 24, the moving die module 22 can slide freely along the moving die holder 21, and the fixed die module 32 can slide freely along the fixed die holder 31. After that, release the limiting pull rod 232. The limiting spring 235 drives the limiting cover 234 to insert into the limiting hole 24. Thus, the moving die module 22 and the fixed die module 32 can be freely adjusted according to the size and mass of the raw material roll, improving the convenience of use.

[0041] Combined with attached Figure 3 、attached Figure 9 、attached Figure 10 、attached Figure 13 、attached Figure 14 and attached Figure 16 As shown in the attached The fixed die assembly 32 comprises a fixed die slider 321 slidably matched with the fixed die frame 31, a fixed die top block 322 matched with the movable die pressing block 225 is arranged on the fixed die slider 321, a fixed die baffle 327 is arranged on the fixed die baffle 327, a fixed die telescopic joint 328 is arranged on the fixed die baffle 327, a fixed die slide plate 325 is arranged at the telescopic end of the fixed die telescopic joint 328, a fixed die spring 326 is sleeved on the fixed die telescopic joint 328, a fixed die slide bar 324 slidably matched with the fixed die slider 321 is arranged on the positioning slide bar, and a fixed die spring block 323 slidably matched with the fixed die top block 322 is arranged on the fixed die slide bar 324; The surfaces of the movable die block 225 and the fixed die top block 322 are treated with diamond-like carbon coating (DLC) to reduce the adhesion between the aluminum alloy and the die during stamping. At the same time, an elastic compensation space of 0.1-0.3mm is preset in the die gap to offset the rebound effect of the aluminum alloy.

[0042] The working principle of the cooperation between the movable mold module 22 and the fixed mold module 32: during the process of the movable mold frame 21 driving the movable mold slider 221 to move close to the fixed mold slider 321, the movable mold pressure plate 224 first contacts the raw material and presses the raw material to the fixed mold slider 321 to achieve the positioning of the raw material. After that, the movable mold slider 221 continues to move, and the movable mold pressure block 225 performs a stamping operation on the raw material with the cooperation of the fixed mold top block 322. During the stamping operation, the movable mold pressure block 225 pushes the raw material to squeeze the fixed mold spring block 323, and the fixed mold spring block 323 drives the fixed mold slide bar 324 to move synchronously with the fixed mold slide plate 325, and the fixed mold slide plate 325 squeezes the fixed mold spring 326 and the fixed mold telescopic joint 328, and the fixed mold spring 326 The movable die spring 226 squeezes the spring spring 227, and the spring spring 227 contracts under the force. After the stamping is completed, the movable die frame 21 drives the movable die slider 221 to move away from the fixed die slider 321. At this time, the fixed die spring 326 is reset, and the fixed die spring 323 pushes out the stamped can cover product. The spring spring 227 is reset and drives the movable die spring 226 to push the can cover product out of the movable die pressing block 225. If the can cover is stuck in the movable die pressing block 225, the movable die frame 21 drives the movable die slider 221 to move to the spring bracket 228 to contact the stamping baffle 13, and the spring bracket 228 drives the movable die spring 226 to push the can cover product out to complete the stamping operation.

[0043] Combined with Figure 1 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 15 With attached Figure 16As shown in the figure, the leveling mechanism 6 includes a feeding guide roller 61, a leveling guide roller 62 and a pressure roller 63 rotatably arranged on the stamping box 11. The feeding guide rollers 61 are symmetrically arranged on both sides of the raw material inlet 18. The pressure roller 63 and the leveling guide roller 62 are arranged alternately. One end of the pressure roller 63 extending out of the stamping box 11 is provided with a synchronous sprocket 621. A synchronous belt 622 is arranged between adjacent groups of synchronous sprockets 621. One side of the synchronous sprocket 621 is provided with a conversion sprocket 643. A rotating sprocket 642 is rotatably arranged on the stamping box 11. One side of the rotating sprocket 642 is provided with a power sprocket 64. A rotating belt 641 is arranged between the power sprocket 64 and the conversion sprocket 643. A leveling sprocket 443 is arranged on the linkage column 44. A leveling belt 444 is arranged between the leveling sprocket 443 and the rotating sprocket 642.

[0044] Working principle of the leveling mechanism 6: The leveling sprocket 443 drives the rotating sprocket 642 to rotate through the leveling belt 444. The rotating sprocket 642 drives the connected power sprocket 64 to rotate synchronously. The power sprocket 64 drives two groups of conversion sprockets 643 to rotate through the rotating belt 641. The conversion sprocket 643 drives the connected synchronous sprocket 621 to rotate. The synchronous sprocket 621 drives the leveling guide roller 62 to rotate through the synchronous belt 622. The rotating directions and speeds of multiple groups of leveling guide rollers 62 are the same. With the cooperation of the alternately arranged pressure rollers 63, the leveling of the raw materials is realized, and the finished product quality of the can lid is improved.

[0045] In the specific implementation of the present invention, the raw material reel is placed between two sets of unwinding plug blocks 521. The positioning screw 542 is driven to rotate by the motor. The positioning screw 542 drives the positioning frame 54 to move upward through the thread. The unwinding plug blocks 521 approach each other to clamp and fix the raw material reel. Then, the driving motor 43 is started. The driving motor 43 drives the driving slider 42 to perform a reciprocating motion along the linear direction of the driving chute 41. The driving column 421 drives the moving die holder 21 to move synchronously. The moving die holder 21 drives the moving die slider 221 to move closer to the fixed die slider 321 to complete the stamping of the raw materials and obtain the finished can lid. The moving die holder 21 drives the moving die slider 221 to move away from the fixed die slider 321. The can lid falls under the action of gravity and moves through the finished product outlet 16 to be stored in the finished product storage tank 17. The waste material moves out of the stamping box 11 through the waste outlet 14 and is guided by the waste guide roller 15 to enter the waste recycling mechanism for recycling. During this process, the unwinding sprocket 445 drives the connecting sprocket 532 to rotate intermittently through the unwinding belt 446. The connecting sprocket 532 drives the unwinding slide column 531 to rotate intermittently. The unwinding connecting rod 52 rotates intermittently, and the raw material reel rotates intermittently to realize the feeding operation. Similarly, multiple groups of leveling guide rollers 62 rotate synchronously and intermittently. With the cooperation of the alternately arranged pressure rollers 63, the leveling and feeding of the raw materials are realized, thereby completing the feeding and leveling of the raw materials.

[0046] The above description of the present invention and its embodiments is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and design, without creative efforts, structural modes and embodiments similar to the technical solution without departing from the gist of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A punching device for producing can lids, comprising a supporting base (1), a movable die mechanism (2) and a fixed die mechanism (3) for punching can lids being provided on the supporting base (1), a driving mechanism (4) for driving the movable die mechanism (2) to reciprocate being provided on the supporting base (1), characterized in that: The support base (1) is provided with a punching box (11), the upper end of the punching box (11) is provided with a raw material inlet (18), the lower end of the punching box (11) is provided with a waste material outlet (14) and a finished product outlet (16), the driving mechanism (4) comprises a driving chute (41) provided on the punching box (11), a driving slider (42) is slidably provided in the driving chute (41), one end of the driving slider (42) is provided with a driving column (421) connected to the movable mold mechanism (2), the other end of the driving slider (42) is rotatably provided with a driving connecting plate (424), the punching box (11) is rotatably provided with a driving disk (433), and one side of the driving disk (433) is eccentrically provided with an eccentric column (435) rotatably connected to the driving connecting plate (424); A matching groove wheel (434) is provided on the other side of the driving disc (433); a driving motor (43) is provided on the stamping box (11); a driving groove wheel (431) is provided at the output end of the driving motor (43); and a driving belt (432) is provided between the driving groove wheel (431) and the matching groove wheel (434); The punching box (11) is provided with an unwinding mechanism (5) which moves with the driving slider (42) and intermittently drives the raw material roll to rotate, and the punching box (11) is provided with a leveling mechanism (6) which moves with the driving slider (42) and intermittently level the raw material roll.

2. A punching device for can cover production according to claim 1, characterized in that: The driving slider (42) is provided with a driving plug plate (422) and a matching plug plate (423), both of which are wedge-shaped structures. A linkage column (44) for driving the unwinding mechanism (5) and the leveling mechanism (6) to move is rotatably provided on the punching box (11), a linkage disk (441) is provided at one end of the linkage column (44), and a plurality of linkage keys (442) are equidistantly provided on the linkage disk (441) along the circumferential direction, and the linkage keys (442) are respectively slidably matched with the driving plug plate (422) and the matching plug plate (423).

3. A punching device for can cover production according to claim 2, characterized in that: The unwinding mechanism (5) comprises an unwinding rotating column (53) rotatably arranged on the punching box (11), an unwinding sliding column (531) being provided at one end of the unwinding rotating column (53), and a connecting groove wheel (532) being provided at the other end of the unwinding rotating column (53); a clamping mechanism for clamping the raw material roll is provided on the punching box (11), the clamping mechanism and the unwinding sliding column (531) are slidably matched, an unwinding groove wheel (445) is provided at one end of the linkage column (44), and an unwinding belt (446) is provided between the unwinding groove wheel (445) and the connecting groove wheel (532).

4. A punching device for can cover production according to claim 3, characterized in that: The clamping mechanism comprises an unwinding slider (51) symmetrically slidably arranged on the punching box (11); an unwinding connecting rod (52) is rotatably arranged on the unwinding slider (51); an unwinding plug (521) cooperating with the raw material roll is arranged at one end of the unwinding connecting rod (52); an unwinding slot (522) slidably cooperating with the unwinding slider (531) is arranged at the other end of the unwinding connecting rod (52); an unwinding column (511) is slidably arranged on the unwinding slider (51); a positioning frame (54) is slidably arranged on the punching box (11); a positioning slide groove (541) symmetrically cooperating with the unwinding column (511) is arranged on the positioning frame (54); the positioning slide groove (541) is inclinedly arranged; a positioning screw (542) cooperating with the positioning frame (54) through a thread is rotatably arranged on the punching box (11); the positioning screw (542) is driven by a motor.

5. A punching device for can cover production according to claim 1, characterized in that: The movable mold mechanism (2) comprises a movable mold frame (21) and a movable mold assembly (22), the movable mold frame (21) being connected to a driving column (421), a plurality of groups of movable mold assemblies (22) being slidably disposed on the movable mold frame (21), the fixed mold mechanism (3) comprises a fixed mold frame (31) and a fixed mold assembly (32), a plurality of groups of fixed mold assemblies (32) being slidably disposed on the fixed mold frame (31), the movable mold frame (21) and the fixed mold frame (31) are both provided with limiting holes (24), and the movable mold assembly (22) and the fixed mold assembly (32) are both provided with limiting mechanisms (23) that cooperate with the limiting holes (24) for limiting.

6. A punching device for can cover production according to claim 5, characterized in that: The limiting mechanism (23) comprises a limiting sleeve (231) fixedly arranged on the movable mold assembly (22) or the fixed mold assembly (32), a limiting cavity (236) being arranged in the limiting sleeve (231), a limiting slide plate (233) being slidably arranged in the limiting cavity (236), the limiting slide plate (233) comprising a wedge-shaped slide plate and a connecting inclined plate (2332), the wedge-shaped slide plates being symmetrically arranged at both ends of the connecting inclined plate (2332), and a limiting cavity (236) being arranged in the limiting sleeve (231). A limit rod (232) is slidably inserted, the limit rod (232) is provided with a limit inclined groove (2321) slidably matched with the connecting inclined plate (2332), a limit cover (234) is slidably provided in the limit hole (24), the limit cover (234) is provided with a wedge-shaped inclined plate (237) slidably matched with the wedge-shaped slider (2331), and a limit spring (235) connected to the limit cover (234) is provided at the upper end of the limit rod (232).

7. A punching device for can cover production according to claim 5, characterized in that: The movable mold assembly (22) comprises a movable mold slider (221) slidably matched with the movable mold frame (21); a movable mold telescopic joint (222) is provided on the movable mold slider (221); a movable mold pressing plate (224) is provided at the telescopic end of the movable mold telescopic joint (222); a movable mold spring (223) is sleeved on the movable mold telescopic joint (222); a movable mold pressing block (225) is provided on the movable mold slider (221); a spring block bracket (228) is slidably provided on the movable mold slider (221); a movable mold spring (226) is provided at one end of the spring block bracket (228) extending into the movable mold pressing block (225); and a spring block spring (227) connected to the movable mold slider (221) is provided on the movable mold spring block (226).

8. A punching device for can cover production according to claim 7, characterized in that: The fixed die assembly (32) comprises a fixed die slide block (321) slidably matched with the fixed die frame (31); a fixed die top block (322) matched with the movable die pressing block (225) is provided on the fixed die slide block (321); a fixed die baffle (327) is provided on the fixed die baffle (327); a fixed die telescopic joint (328) is provided on the fixed die baffle (327); a fixed die slide plate (325) is provided at the telescopic end of the fixed die telescopic joint (328); a fixed die spring (326) is sleeved on the fixed die telescopic joint (328); a fixed die slide bar (324) slidably matched with the fixed die slide block (321) is provided on the positioning slide bar; and a fixed die spring block (323) slidably matched with the fixed die top block (322) is provided on the fixed die slide bar (324).

9. A punching device for can cover production according to claim 2, characterized in that: The leveling mechanism (6) comprises a feed guide roller (61), a leveling guide roller (62) and a pressing guide roller (63) rotatably arranged on the punching box (11); the feed guide roller (61) is symmetrically arranged on both sides of the raw material inlet (18); the pressing guide roller (63) and the leveling guide roller (62) are staggered; one end of the pressing guide roller (63) extending out of the punching box (11) is provided with a synchronous groove wheel (621); a synchronous belt (622) is provided between two adjacent sets of synchronous groove wheels (621); ), a conversion groove wheel (643) is provided on one side of the synchronous groove wheel (621), a rotating groove wheel (642) is rotatably provided on the punch box (11), a power groove wheel (64) is provided on one side of the rotating groove wheel (642), a rotating belt (641) is provided between the power groove wheel (64) and the conversion groove wheel (643), a leveling groove wheel (443) is provided on the linkage column (44), and a leveling belt (444) is provided between the leveling groove wheel (443) and the rotating groove wheel (642).

Images