A continuous punching forming device for an airbag gas generator

Abstract

The present application relates to the technical field of gas generator stamping equipment, and particularly relates to a continuous stamping forming device for a safety airbag gas generator, which comprises a shell, a stamping mechanism is installed in the shell, the stamping mechanism comprises a first motor, the first motor is fixedly installed at the top of the shell, a first rotating shaft is rotatably installed in the shell, the output end of the first motor is connected with the first rotating shaft through a belt wheel, an eccentric wheel is fixedly installed on the surface of the first rotating shaft, the first rotating shaft is arranged at the eccentric position of the eccentric wheel, an outer wheel is rotatably installed on the surface of the eccentric wheel, and first sliding rails are fixedly installed on the two sides of the shell. Through the setting of the ejection mechanism, the ejection force of the ejection plate can be adjusted, the thickness of the part directly determines the resistance during demolding, the ejection force of the ejection plate can be adjusted, the production stability can be improved, the downtime and rework can be reduced, and the demolding process is zero abnormal.

Description

Technical Field

[0001] This invention relates to the field of gas generator stamping equipment technology, specifically to a continuous stamping forming device for an airbag gas generator. Background Technology

[0002] With the continuous development of automotive safety technology, airbags have become a core component of vehicle passive safety systems. The gas generator, as the "power source" of the airbag, directly determines the airbag's deployment response efficiency and protective effect through its structural strength and manufacturing precision. The gas generator's housing, as a core load-bearing component, needs to be formed through a stamping process; therefore, the performance of the stamping device has a crucial impact on the gas generator's production quality, efficiency, and cost control.

[0003] The ejection mechanism of existing stamping devices mostly uses a fixed-force spring assembly or a single-stroke cylinder drive. The ejection force and ejection stroke cannot be dynamically adjusted according to the thickness of the stamped part. Since the gas generator housing needs to be adapted to the installation space of different vehicle models, its thickness specifications vary, usually fluctuating in the range of 1.2 to 3 mm. The fixed ejection stroke cannot match the embedding depth of parts with different thicknesses. When thick-walled parts are deeply embedded, the stroke is insufficient and cannot be completely ejected. When thin-walled parts are shallowly embedded, the stroke is too long, which can easily cause the parts to collide with the ejection plate and be damaged. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides a continuous stamping forming apparatus for an airbag gas generator that overcomes or at least partially solves the above technical problems.

[0005] This invention is implemented as follows:

[0006] This invention provides a continuous stamping forming apparatus for an airbag gas generator, comprising a housing, wherein a stamping mechanism is installed inside the housing, and the stamping mechanism includes:

[0007] A first motor is fixedly mounted on the top of the housing. A first rotating shaft is rotatably mounted inside the housing. The output end of the first motor is connected to the first rotating shaft via a pulley.

[0008] An eccentric wheel is fixedly mounted on the surface of a first rotating shaft, the first rotating shaft being located at the eccentric position of the eccentric wheel, and an outer wheel being rotatably mounted on the surface of the eccentric wheel.

[0009] The first sliding track is fixedly installed on both sides of the outer casing. An installation component is slidably installed inside the first sliding track, and the top of the installation component is rotatably connected to the bottom of the outer wheel.

[0010] In one embodiment of the present invention, a stamping head is detachably mounted on the bottom of the mounting component, a base is fixedly mounted on the bottom of the housing, a stamping port is provided on the surface of the base, a die is detachably mounted on the bottom of the stamping port, a top outlet is provided on the bottom of the die, a first sliding cylinder is fixedly mounted on the bottom of the top outlet, and an ejection mechanism is provided inside the first sliding cylinder.

[0011] In one embodiment of the present invention, the ejection mechanism includes a second motor, which is fixedly installed at the bottom of the base. A second rotating shaft is fixedly installed at the output end of the second motor. A convex shaft is fixedly installed inside the second rotating shaft. A first connecting rod is rotatably installed inside the convex shaft. A second connecting rod is rotatably installed at the end of the first connecting rod. A base plate is rotatably installed at the end of the second connecting rod.

[0012] In one embodiment of the present invention, a first telescopic rod is fixedly installed on the top of the base plate, and multiple first telescopic rods are provided. A third mounting plate is fixedly installed on the top of the multiple first telescopic rods. An electric telescopic rod is fixedly installed on the top of the base plate, and the output end of the electric telescopic rod is fixedly connected to the bottom of the third mounting plate.

[0013] In one embodiment of the present invention, a second telescopic rod is fixedly installed on the top of the third mounting plate, and a top-out plate is fixedly installed at the end of the second telescopic rod. A first spring is provided between the top-out plate and the third mounting plate. Multiple first springs are provided. The top-out plate is slidably installed inside the first sliding cylinder.

[0014] In one embodiment of the present invention, a first mounting plate is fixedly installed on the inner cavity sidewall of the base, a third rotating shaft is rotatably installed inside the first mounting plate, a third motor is fixedly installed on the side of the first mounting plate, the third motor is fixedly connected to the third rotating shaft, a first bevel gear is fixedly installed on the surface of the third rotating shaft, an L-shaped plate is rotatably installed on the side of the first mounting plate, a second bevel gear is rotatably installed on the top of the L-shaped plate, and a rotating rod is fixedly installed on the bottom of the second bevel gear.

[0015] In one embodiment of the present invention, a second mounting plate is fixedly installed on the inner cavity sidewall of the base, an arc-shaped groove is fixedly installed on the side of the second mounting plate, a sliding block is slidably installed inside the arc-shaped groove, a rotating block is rotatably installed on the side of the sliding block, a third connecting rod is rotatably installed on the side of the rotating block, the end of the third connecting rod is rotatably connected to the first connecting rod, a threaded groove is opened on the end surface of the rotating rod, and the end of the rotating rod is threadedly connected to the rotating block.

[0016] In one embodiment of the present invention, a feeding mechanism is installed on the side of the outer shell. The feeding mechanism includes a feeding platform, which is fixedly installed on the side of the outer shell. A mounting base is fixedly installed on the top of the feeding platform. Two mounting bases are provided, and each of the two mounting bases has a mounting groove inside. A first mounting block is fixedly installed inside the mounting groove. An active roller is rotatably installed between the first mounting blocks. A second mounting block is slidably installed inside the mounting groove. A driven roller is rotatably installed between the second mounting blocks. A second spring is provided between the second mounting block and the mounting groove. A connecting rod is fixedly installed on the top of the second mounting block. Two connecting rods are provided. The two connecting rods pass through to the top of the mounting base and are slidably connected to the mounting base. A connecting plate is fixedly installed on the top of the two connecting rods. A tension sensor is provided between the connecting plate and the top of the mounting base. The tension sensor is connected to an electric telescopic rod and a third motor via an electrical signal.

[0017] In one embodiment of the present invention, a sliding groove is provided on the surface of the loading platform, a second sliding rail is fixedly installed at the bottom of the sliding groove, a connecting block is slidably installed inside the second sliding rail, a top rod is fixedly installed on the top of the connecting block, two top rods are provided, a push block is slidably installed on the surface of the two top rods, a third spring is sleeved on the surface of the top rod, and the third spring is disposed between the push block and the connecting block.

[0018] In one embodiment of the present invention, a fourth motor is fixedly installed on the side of the loading platform, a first transmission shaft is rotatably installed on the bottom of the loading platform, the first transmission shaft is fixedly connected to the output end of the fourth motor, a first gear is fixedly installed on the surface of the first transmission shaft, a second transmission shaft is rotatably installed inside the loading platform, a second gear is fixedly installed at the end of the second transmission shaft, the second gear meshes with the first gear, the second transmission shaft is connected to the drive roller through a pulley, a first rotating plate is rotatably installed on the side of the second gear, a second rotating plate is rotatably installed on the side of the first rotating plate, a third rotating plate is rotatably installed at the end of the second rotating plate, the end of the third rotating plate is rotatably connected to the bottom of the connecting block, and a fourth rotating plate is rotatably installed at the end of the second rotating plate, the fourth rotating plate being rotatably connected to the side of the second sliding track.

[0019] The present invention provides a continuous stamping forming device for an airbag gas generator, the beneficial effects of which include:

[0020] 1. This invention, through the setting of the ejection mechanism, allows for adjustment of the ejection force of the ejection plate. The thickness of the part directly determines the resistance during demolding. Thick parts, due to their tight fit with the mold and high friction, require a greater ejection force to detach, while thin parts, due to their weak rigidity and poor impact resistance, require a smaller ejection force to avoid deformation. Adjusting the ejection force can avoid two types of core quality defects from the source: insufficient ejection force for thick parts causing jamming, requiring machine stoppage for each cleaning; and excessive ejection force for thin parts causing deformation and scrapping, requiring machine stoppage for parameter adjustment and screening of qualified parts. By adjusting the ejection force of the ejection plate, production stability can be improved, downtime and rework reduced, and the demolding process can be made free of abnormalities.

[0021] 2. By setting the ejection mechanism, the ejection stroke of the ejection plate can be changed, thereby matching stamped parts of different thicknesses. The thickness of the stamped part directly determines the embedding depth of the part in the mold. Thick parts are embedded deeply, and thin parts are embedded shallowly. The ejection mechanism stroke must be matched to this depth synchronously. If the stroke is fixed, thick parts will be stuck in the mold due to insufficient stroke, and thin parts will be ejected and deformed due to excessive stroke. Dynamic adjustment can completely avoid these problems.

[0022] 3. The present invention enables automatic feeding through the setting of the feeding mechanism. Manual feeding is limited by long operation cycles, physiological fatigue, and intermittent stops, while automatic feeding can achieve high-speed, continuous, and uninterrupted operation, directly breaking through the bottleneck of production efficiency, shortening the operation cycle, and increasing the output per unit time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure provided by an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the overall rear view structure provided for an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of the loading platform structure provided for an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the internal structure of the base provided for an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the ejection mechanism structure provided for an embodiment of the present invention;

[0029] Figure 6 A schematic diagram of the feeding mechanism provided for an embodiment of the present invention;

[0030] Figure 7 Provided for the embodiments of the present invention Figure 2 Enlarged structural diagram of section A in the middle;

[0031] Figure 8 Provided for the embodiments of the present invention Figure 5 Enlarged structural diagram of section B;

[0032] Figure 9 Provided for the embodiments of the present invention Figure 6 Enlarged structural diagram of section C.

[0033] In the diagram: 1. Outer casing; 2. Stamping mechanism; 201. First motor; 202. First rotating shaft; 203. Eccentric wheel; 204. Outer wheel; 205. First sliding rail; 206. Mounting component; 207. Stamping head; 208. Base; 209. Stamping port; 210. Die; 211. Ejector outlet; 212. First sliding cylinder; 3. Ejection mechanism; 301. Second motor; 302. Second rotating shaft; 303. 304. First connecting rod; 305. Second connecting rod; 306. Base plate; 307. First telescopic rod; 308. Third mounting plate; 309. Electric telescopic rod; 310. Second telescopic rod; 311. Ejector plate; 312. First spring; 313. First mounting plate; 314. Third rotating shaft; 315. Third motor; 316. First bevel gear; 317. L-shaped plate; 318. Second bevel gear; 319. Rotary shaft. 320. Moving rod; 321. Second mounting plate; 322. Arc groove; 323. Sliding block; 324. Rotating block; 325. Third connecting rod; 326. Threaded groove; 4. Feeding mechanism; 401. Feeding platform; 402. Mounting base; 403. Mounting groove; 404. First mounting block; 405. Driving roller; 406. Second mounting block; 407. Driven roller; 408. Second spring; 409. Connecting rod; 410. Connecting plate; 411. Tension sensor; 412. Sliding groove; 413. Second sliding rail; 414. Connecting block; 415. Top rod; 416. Push block; 417. Third spring; 418. Fourth motor; 419. First drive shaft; 420. First gear; 421. Second drive shaft; 422. Second gear; 423. First rotating plate; 424. Second rotating plate; 425. Third rotating plate; 426. Fourth rotating plate. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0035] Reference Figures 1-9 This technical solution provides a continuous stamping forming device for an airbag gas generator, specifically including a housing 1. A stamping mechanism 2 is installed inside the housing 1. The stamping mechanism 2 includes a first motor 201, an eccentric wheel 203, and a first sliding rail 205. The first motor 201 is fixedly installed on the top of the housing 1. A first rotating shaft 202 is rotatably installed inside the housing 1. The output end of the first motor 201 is connected to the first rotating shaft 202 via a pulley. The eccentric wheel 203 is fixedly installed on the surface of the first rotating shaft 202, and the first rotating shaft 202 is located at the eccentric position of the eccentric wheel 203. An outer wheel 204 is rotatably installed on the surface of the eccentric wheel 203. The first sliding rail 205 is fixedly installed on both sides of the housing 1. An mounting component 206 is slidably installed inside the first sliding rail 205. The top of the mounting component 206 is rotatably connected to the bottom of the outer wheel 204. A stamping head 207 is detachably installed on the bottom of the mounting component 206. When the first motor 201... When started, the first rotating shaft 202 can be driven to rotate. The rotation of the first rotating shaft 202 can drive the eccentric wheel 203 to rotate eccentrically, which in turn can cause the outer wheel 204 to move up and down. This can drive the mounting part 206 to slide up and down inside the first sliding track 205, which can then cause the stamping head 207 to perform stamping operation on the stamped part. The bottom of the outer shell 1 is fixedly installed with a base 208. The surface of the base 208 is provided with a stamping port 209. The bottom of the stamping port 209 is detachably installed with a die 210. The bottom of the die 210 is provided with a top outlet 211. The bottom of the top outlet 211 is fixedly installed with a first sliding cylinder 212. The first sliding cylinder 212 is provided with an ejection mechanism 3. The stamping head 207 stamps the stamped part through the stamping port 209 into the inside of the die 210 to form a semi-circular shell of the gas generator. Then the ejection mechanism 3 ejects the stamped part inside the die 210 through the top outlet 211.

[0036] Reference Figures 1-9This embodiment also proposes an ejection mechanism 3 including a second motor 301, which is fixedly installed at the bottom of the base 208. A second rotating shaft 302 is fixedly installed at the output end of the second motor 301. A convex shaft 303 is fixedly installed inside the second rotating shaft 302. A first connecting rod 304 is rotatably installed inside the convex shaft 303. A second connecting rod 305 is rotatably installed at the end of the first connecting rod 304. A base plate 306 is rotatably installed at the end of the second connecting rod 305. A first telescopic rod 307 is fixedly installed on the top of the base plate 306. Multiple first telescopic rods 307 are provided. A third mounting plate 308 is fixedly installed on the top of the multiple first telescopic rods 307. An electric telescopic rod 309 is fixedly installed on the top of the base plate 306. The output end of 9 is fixedly connected to the bottom of the third mounting plate 308. The top of the third mounting plate 308 is fixedly mounted with a second telescopic rod 310. The end of the second telescopic rod 310 is fixedly mounted with an ejector plate 311. A first spring 312 is provided between the ejector plate 311 and the third mounting plate 308. Multiple first springs 312 are provided. The ejector plate 311 is slidably installed inside the first sliding cylinder 212. During stamping, the second motor 301 drives the second rotating shaft 302 to rotate regularly. The rotation speed of the second rotating shaft 302 matches the stamping speed. When the second rotating shaft 302 rotates, it can drive the cam shaft 303 to rotate. The rotation of the cam shaft 303 can drive the first connecting rod 304 to rotate eccentrically. The rotation of the first connecting rod 304 drives the rotation of the second connecting rod 305. The rotation of the second connecting rod 305 causes the base plate 306 to slide up and down inside the first sliding cylinder 212. The up and down sliding of the base plate 306 causes the electric telescopic rod 309 and the third mounting plate 308 to slide up and down together. When the third mounting plate 308 slides upward, it causes the ejector plate 311 to move upward. When the ejector plate 311 contacts the stamping part, under the pressure of the stamping part, the ejector plate 311 is subjected to a force in the opposite direction and moves downward, causing the first spring 312 to be compressed and the second telescopic rod 310 to be squeezed. When the force applied by the first spring 312 to the ejector plate 311 can push the stamping part out, the first spring 312 will... No longer compressed, when the electric telescopic rod 309 is activated, it can drive the third mounting plate 308 to move up and down. The up and down movement of the third mounting plate 308 can change the compression of the first spring 312, causing the elastic force of the first spring 312 in the initial state to change. This changes the pushing force applied by the ejector plate 311 to the stamped part. The thickness of the part directly determines the resistance during demolding. Thick parts, because they fit tightly with the mold and have high friction, require a larger ejection force to detach. Thin parts, because they have weak rigidity and poor impact resistance, require a smaller ejection force to avoid deformation. Adjusting the ejection force can avoid two types of core quality defects from the source: insufficient ejection force for thick parts causing jamming, requiring machine stoppage for each cleaning; and excessive ejection force for thin parts causing deformation and scrapping, requiring machine stoppage for parameter adjustment and screening of qualified parts.By adjusting the ejection force of the ejector plate 311, production stability can be improved, downtime and rework reduced, and the demolding process can be completed without any abnormalities.

[0037] A first mounting plate 313 is fixedly installed on the inner wall of the base 208. A third rotating shaft 314 is rotatably installed inside the first mounting plate 313. A third motor 315 is fixedly installed on the side of the first mounting plate 313. The third motor 315 is fixedly connected to the third rotating shaft 314. A first bevel gear 316 is fixedly installed on the surface of the third rotating shaft 314. An L-shaped plate 317 is rotatably installed on the side of the first mounting plate 313. A second bevel gear 318 is rotatably installed on the top of the L-shaped plate 317. The bottom of the second bevel gear 318... A rotating rod 319 is fixedly installed in the base 208. A second mounting plate 320 is fixedly installed on the inner wall of the base 208. An arc-shaped groove 321 is fixedly installed on the side of the second mounting plate 320. A sliding block 322 is slidably installed inside the arc-shaped groove 321. A rotating block 323 is rotatably installed on the side of the sliding block 322. A third connecting rod 324 is rotatably installed on the side of the rotating block 323. The end of the third connecting rod 324 is rotatably connected to the first connecting rod 304. A threaded groove 325 is opened on the end surface of the rotating rod 319. The end is threadedly connected to the rotating block 323. When the third motor 315 is started, the third motor 315 can drive the third rotating shaft 314 to rotate. The rotation of the third rotating shaft 314 can drive the first bevel gear 316 to rotate. The rotation of the first bevel gear 316 can drive the second bevel gear 318 to rotate. The rotation of the second bevel gear 318 can drive the rotating rod 319 to rotate. The rotation of the rotating rod 319 can change the position of the rotating block 323, causing the sliding block 322 to slide inside the arc groove 321. This changes the angle of the third connecting rod 324, thereby changing the rotation arm of the first connecting rod 304, and thus changing the stroke of the ejector plate 311. This can match stamped parts of different thicknesses. The thickness of the stamped part directly determines the embedding depth of the part in the mold. Thick parts are embedded deeply, and thin parts are embedded shallowly. The stroke of the ejector mechanism 3 needs to match this depth synchronously. If the stroke is fixed, thick parts will be stuck in the mold due to insufficient stroke, and thin parts will be ejected and deformed due to excessive stroke. Dynamic adjustment can completely avoid these problems.

[0038] Reference Figures 1-9This embodiment also proposes that a feeding mechanism 4 is installed on the side of the outer casing 1. The feeding mechanism 4 includes a feeding platform 401, which is fixedly installed on the side of the outer casing 1. A mounting base 402 is fixedly installed on the top of the feeding platform 401. Two mounting bases 402 are provided, and each of the two mounting bases 402 has a mounting groove 403 inside. A first mounting block 404 is fixedly installed inside the mounting groove 403. An active roller 405 is rotatably installed between the first mounting blocks 404. A second mounting block 405 is slidably installed inside the mounting groove 403. A driven roller 407 is rotatably mounted between two mounting blocks 406 and a mounting groove 403. A second spring 408 is provided between the second mounting block 406 and the mounting groove 403. Two connecting rods 409 are fixedly mounted on the top of the second mounting block 406. The two connecting rods 409 extend through to the top of the mounting base 402 and are slidably connected to the mounting base 402. A connecting plate 410 is fixedly mounted on the top of the two connecting rods 409. A tension sensor is provided between the connecting plate 410 and the top of the mounting base 402. 411, the tension sensor 411 is connected to the electric telescopic rod 309 and the third motor 315 via an electrical signal. When the drive roller 405 rotates, it can extrude and convey the stamped part. Under the action of the drive roller 405 and the driven roller 407, the stamped part can be pre-shaped, and the bent stamped part can be flattened. When the thickness of the stamped part changes, the driven roller 407 moves upward. The upward movement of the driven roller 407 can drive the second mounting block 406 to move inside the mounting groove 403, thereby... The connecting rod 409 slides upward, which in turn moves the connecting plate 410 upward. The upward movement of the connecting plate 410 applies a tension force to the tension sensor 411. The thicker the stamped part, the greater the upward movement of the connecting plate 410, and thus the greater the tension force applied to the tension sensor 411. The tension sensor 411 controls the electric telescopic rod 309 and the third motor 315 according to the magnitude of the tension force, so that the telescopic distance of the electric telescopic rod 309 and the rotation angle of the third motor 315 change.

[0039] The surface of the loading platform 401 is provided with a sliding groove 412. A second sliding rail 413 is fixedly installed at the bottom of the sliding groove 412. A connecting block 414 is slidably installed inside the second sliding rail 413. A push rod 415 is fixedly installed on the top of the connecting block 414. There are two push rods 415. Push blocks 416 are slidably installed on the surfaces of the two push rods 415. A third spring 417 is sleeved on the surface of the push rod 415. The third spring 417 is located between the push block 416 and the connecting block 414. A fourth motor 418 is fixedly installed on the side of the loading platform 401. A first drive shaft 419 is rotatably installed on the bottom of the loading platform 401. The first drive shaft 419 is fixedly connected to the output end of the fourth motor 418. A first gear 420 is fixedly mounted on the surface of the moving shaft 419. A second drive shaft 421 is rotatably mounted inside the loading platform 401. A second gear 422 is fixedly mounted at the end of the second drive shaft 421. The second gear 422 meshes with the first gear 420. The second drive shaft 421 is connected to the drive roller 405 via a pulley. A first rotating plate 423 is rotatably mounted on the side of the second gear 422. A second rotating plate 424 is rotatably mounted on the side of the first rotating plate 423. A third rotating plate 425 is rotatably mounted at the end of the second rotating plate 424. The end of the third rotating plate 425 is rotatably connected to the bottom of the connecting block 414. A fourth rotating plate 426 is rotatably mounted at the end of the second rotating plate 424. The fourth rotating plate 426 is rotatably connected to the side of the second sliding rail 413. The stamping part to be stamped is placed on the top of the loading table 401. Then, the fourth motor 418 is started, which drives the first transmission shaft 419 to rotate. The rotation of the first transmission shaft 419 drives the first gear 420 to rotate, which in turn drives the second gear 422 to rotate. The rotation of the second gear 422 drives the second transmission shaft 421 to rotate, which in turn drives the drive roller 405 to rotate. At the same time, the rotation of the second transmission shaft 421 drives the first rotating plate 423 to rotate, which in turn drives the second rotating plate 426 to rotate. 4. The rotation of the second rotating plate 424 can drive the third rotating plate 425 to rotate, thereby pulling the connecting block 414 to slide inside the second sliding track 413. The sliding of the connecting block 414 can drive the push block 416 to slide inside the sliding groove 412. The sliding of the push block 416 can push the stamped parts at the bottom of the loading platform 401, thereby allowing the stamped parts to enter between the active roller 405 and the driven roller 407 for transportation, realizing automatic feeding operation. Manual feeding is limited by long operation cycle, physiological fatigue, and intermittent stops, while automatic feeding can realize high-speed, continuous, and uninterrupted operation, directly breaking through the production efficiency bottleneck, shortening the operation cycle, and increasing the output per unit time.

[0040] Specifically, the working process or working principle of the continuous stamping forming device for airbag gas generator is as follows: When the first motor 201 is started, it can drive the first rotating shaft 202 to rotate. The rotation of the first rotating shaft 202 can drive the eccentric wheel 203 to rotate eccentrically, thereby causing the outer wheel 204 to move up and down. This can drive the mounting part 206 to slide up and down inside the first sliding track 205, thereby causing the stamping head 207 to perform stamping operation on the stamping part. The stamping head 207 stamps the stamping part through the stamping port 209 into the interior of the die 210 to form a semi-circular shell of the gas generator. Then, the ejection mechanism 3 ejects the stamping part stamped inside the die 210 through the ejection port 211.

[0041] During stamping, the second motor 301 drives the second rotating shaft 302 to rotate regularly. The rotation speed of the second rotating shaft 302 matches the stamping speed. When the second rotating shaft 302 rotates, it drives the cam shaft 303 to rotate. The rotation of the cam shaft 303 drives the first connecting rod 304 to rotate eccentrically. The rotation of the first connecting rod 304 drives the second connecting rod 305 to rotate. The rotation of the second connecting rod 305 causes the base plate 306 to slide up and down inside the first sliding cylinder 212. The up and down sliding of the base plate 306 drives the electric telescopic rod 309 and the third mounting plate 308 to slide up and down together. When the third mounting plate 308 slides upward, it causes the ejector plate 311 to move upward. When the ejector plate 311 contacts the stamped part, under the pressure of the stamped part, the ejector plate 311 is subjected to a force in the opposite direction and moves downward, causing the first spring 312 to be compressed and the second telescopic rod 310 to be squeezed. When the force applied by the spring 312 to the ejector plate 311 can push the stamped part out, the first spring 312 will no longer be compressed. When the electric telescopic rod 309 is activated, it can drive the third mounting plate 308 to move up and down. The up and down movement of the third mounting plate 308 can change the compression of the first spring 312, so that the elastic force of the first spring 312 in the initial state changes, thereby changing the pushing force applied by the ejector plate 311 to the stamped part. The thickness of the part directly determines the resistance during demolding. Thick parts, because they fit tightly with the mold and have high friction, require a larger ejection force to detach. Thin parts, because they have weak rigidity and poor impact resistance, require a smaller ejection force to avoid deformation. Adjusting the ejection force can avoid two types of core quality defects from the source: jamming caused by insufficient ejection force of thick parts, which requires machine stoppage for each cleaning; and deformation and scrapping caused by excessive ejection force of thin parts, which requires machine stoppage to adjust parameters and screen qualified parts. By adjusting the ejection force of the ejector plate 311, production stability can be improved, downtime and rework can be reduced, and the demolding process can be made free of abnormalities.

[0042] When the third motor 315 is started, it drives the third rotating shaft 314 to rotate. The rotation of the third rotating shaft 314 drives the first bevel gear 316 to rotate, which in turn drives the second bevel gear 318 to rotate. The rotation of the second bevel gear 318 drives the rotating rod 319 to rotate. The rotation of the rotating rod 319 changes the position of the rotating block 323, causing the sliding block 322 to slide inside the arc groove 321. This changes the angle of the third connecting rod 324, thereby altering the rotation arm of the first connecting rod 304 and consequently changing the stroke of the ejector plate 311. This allows for the matching of stamped parts of different thicknesses. The thickness of the stamped part directly determines the embedding depth of the part in the mold. Thick parts embed deeply, while thin parts embed shallowly. The stroke of the ejector mechanism 3 must synchronously match this depth. If the stroke is fixed, thick parts will be stuck in the mold due to insufficient stroke, while thin parts will be ejected and deformed due to excessive stroke. Dynamic adjustment can completely avoid these problems.

[0043] When the drive roller 405 rotates, it can extrude and convey the stamped part. Under the action of the drive roller 405 and the driven roller 407, the stamped part can be pre-shaped and the bent stamped part can be flattened. When the thickness of the stamped part changes, the driven roller 407 moves upward. The upward movement of the driven roller 407 can drive the second mounting block 406 to move inside the mounting groove 403, thereby driving the connecting rod 409 to slide upward, and then driving the connecting plate 410 to move upward. The upward movement of the connecting plate 410 can apply a tension to the tension sensor 411. The thicker the stamped part, the greater the upward movement distance of the connecting plate 410, and thus the greater the tension applied to the tension sensor 411. The tension sensor 411 controls the electric telescopic rod 309 and the third motor 315 according to the magnitude of the tension, so that the telescopic distance of the electric telescopic rod 309 and the rotation angle of the third motor 315 change.

[0044] The stamping parts to be stamped are placed on top of the loading table 401. Then, the fourth motor 418 is started. The fourth motor 418 drives the first transmission shaft 419 to rotate. The rotation of the first transmission shaft 419 drives the first gear 420 to rotate. The rotation of the first gear 420 drives the second gear 422 to rotate. The rotation of the second gear 422 drives the second transmission shaft 421 to rotate, which in turn drives the drive roller 405 to rotate. At the same time, the rotation of the second transmission shaft 421 drives the first rotating plate 423 to rotate. The rotation of the first rotating plate 423 drives the second rotating plate 424 to rotate. The rotation of 4 can drive the third rotating plate 425 to rotate, which can pull the connecting block 414 to slide inside the second sliding track 413. The sliding of the connecting block 414 can drive the push block 416 to slide inside the sliding groove 412. The sliding of the push block 416 can push the stamped parts at the bottom of the loading platform 401, so that the stamped parts can enter between the active roller 405 and the driven roller 407 for transportation, realizing automatic feeding operation. Manual feeding is limited by long operation cycle, physiological fatigue, and intermittent stops, while automatic feeding can realize high-speed, continuous and uninterrupted operation, directly breaking through the production efficiency bottleneck, shortening the operation cycle, and increasing the output per unit time.

Claims

1. An airbag inflator continuous press forming apparatus comprising a housing (1), characterized in that, The inside of the shell (1) is provided with a punching mechanism (2), the punching mechanism (2) comprises: A first motor (201) is fixedly installed on the top of the shell (1), a first rotating shaft (202) is rotatably installed in the shell (1), and the output end of the first motor (201) is connected with the first rotating shaft (202) through a belt pulley; An eccentric wheel (203) is fixedly installed on the surface of the first rotating shaft (202), the first rotating shaft (202) is arranged at the eccentric position of the eccentric wheel (203), and an outer wheel (204) is rotatably installed on the surface of the eccentric wheel (203); First sliding rails (205) are fixedly installed on both sides of the shell (1), a mounting piece (206) is slidably installed in the first sliding rail (205), and the top of the mounting piece (206) is rotatably connected with the bottom of the outer wheel (204); A punch head (207) is detachably installed on the bottom of the mounting piece (206), a base (208) is fixedly installed on the bottom of the shell (1), a punching port (209) is formed in the surface of the base (208), a recess die (210) is detachably installed on the bottom of the punching port (209), a top discharge port (211) is formed in the bottom of the recess die (210), a first sliding cylinder (212) is fixedly installed on the bottom of the top discharge port (211), and an ejection mechanism (3) is arranged in the first sliding cylinder (212); The ejection mechanism (3) comprises a second motor (301) fixedly installed on the bottom of the base (208), a second rotating shaft (302) fixedly installed on the output end of the second motor (301), a convex shaft (303) fixedly installed in the second rotating shaft (302), a first connecting rod (304) rotatably installed in the convex shaft (303), a second connecting rod (305) rotatably installed on the end of the first connecting rod (304), and a bottom plate (306) rotatably installed on the end of the second connecting rod (305); A first telescopic rod (307) is fixedly installed on the top of the bottom plate (306), a plurality of first telescopic rods (307) are arranged, a third mounting plate (308) is fixedly installed on the top of the first telescopic rod (307), an electric telescopic rod (309) is fixedly installed on the top of the bottom plate (306), and the output end of the electric telescopic rod (309) is fixedly connected with the bottom of the third mounting plate (308); A second telescopic rod (310) is fixedly installed on the top of the third mounting plate (308), an ejection plate (311) is fixedly installed on the end of the second telescopic rod (310), a first spring (312) is arranged between the ejection plate (311) and the third mounting plate (308), a plurality of first springs (312) are arranged, and the ejection plate (311) is slidably installed in the first sliding cylinder (212).

2. The apparatus according to claim 1, wherein The inner cavity side wall of the base (208) is fixedly installed with a first mounting plate (313), a third rotating shaft (314) is rotatably installed at the inner portion of the first mounting plate (313), a third motor (315) is fixedly installed at the side portion of the first mounting plate (313), the third motor (315) is fixedly connected with the third rotating shaft (314), a first bevel gear (316) is fixedly installed at the surface of the third rotating shaft (314), an L-shaped plate (317) is rotatably installed at the side portion of the first mounting plate (313), a second bevel gear (318) is rotatably installed at the top portion of the L-shaped plate (317), and a rotating rod (319) is fixedly installed at the bottom portion of the second bevel gear (318).

3. The apparatus according to claim 2, wherein The inner cavity side wall of the base (208) is fixedly installed with a second mounting plate (320), an arc-shaped groove (321) is fixedly installed at the side portion of the second mounting plate (320), a sliding block (322) is slidably installed at the inner portion of the arc-shaped groove (321), a rotating block (323) is rotatably installed at the side portion of the sliding block (322), a third connecting rod (324) is rotatably installed at the side portion of the rotating block (323), the end portion of the third connecting rod (324) is rotatably connected with the first connecting rod (304), a threaded groove (325) is formed at the end surface of the rotating rod (319), and the end portion of the rotating rod (319) is threadedly connected with the rotating block (323).

4. The apparatus according to claim 3, wherein The side portion of the shell (1) is provided with a feeding mechanism (4), the feeding mechanism (4) comprises a feeding table (401), the feeding table (401) is fixedly installed at the side portion of the shell (1), a mounting seat (402) is fixedly installed at the top portion of the feeding table (401), the mounting seat (402) is provided with two mounting grooves (403), a first mounting block (404) is fixedly installed at the inner portion of each mounting groove (403), a driving roller (405) is rotatably installed between the first mounting blocks (404), a second mounting block (406) is slidably installed at the inner portion of the mounting groove (403), a driven roller (407) is rotatably installed between the second mounting blocks (406), a second spring (408) is arranged between the second mounting block (406) and the mounting groove (403), a connecting rod (409) is fixedly installed at the top portion of the second mounting block (406), the connecting rod (409) is provided with two, the connecting rod (409) penetrates through the top portion of the mounting seat (402) and is slidably connected with the mounting seat (402), a connecting plate (410) is fixedly installed at the top portion of each connecting rod (409), a tension sensor (411) is arranged between the connecting plate (410) and the top portion of the mounting seat (402), and the tension sensor (411) is connected in communication with the electric telescopic rod (309) and the third motor (315) through electric signals.

5. The apparatus according to claim 4, wherein The surface of the feeding table (401) is provided with a sliding groove (412), the bottom of the sliding groove (412) is fixedly installed with a second sliding rail (413), the inside of the second sliding rail (413) is slidably installed with a connecting block (414), the top of the connecting block (414) is fixedly installed with a top rod (415), the top rod (415) is provided with two, the surface of the two top rods (415) is slidably installed with a push block (416), the surface of the top rod (415) is sleeved with a third spring (417), and the third spring (417) is arranged between the push block (416) and the connecting block (414).

6. The apparatus according to claim 5, wherein The side of the feeding table (401) is fixedly installed with a fourth motor (418), the bottom of the feeding table (401) is rotatably installed with a first transmission shaft (419), the first transmission shaft (419) is fixedly connected with the output end of the fourth motor (418), the surface of the first transmission shaft (419) is fixedly installed with a first gear (420), the inside of the feeding table (401) is rotatably installed with a second transmission shaft (421), the end of the second transmission shaft (421) is fixedly installed with a second gear (422), the second gear (422) is engaged with the first gear (420), the second transmission shaft (421) is connected with the driving roller (405) through a belt pulley, the side of the second gear (422) is rotatably installed with a first rotating plate (423), the side of the first rotating plate (423) is rotatably installed with a second rotating plate (424), the end of the second rotating plate (424) is rotatably installed with a third rotating plate (425), the end of the third rotating plate (425) is rotatably connected with the bottom of the connecting block (414), the end of the second rotating plate (424) is rotatably installed with a fourth rotating plate (426), and the fourth rotating plate (426) is rotatably connected with the side of the second sliding rail (413).

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