Stainless steel on-line light stamping device

Abstract

The application discloses a kind of stainless steel online shallow stamping equipment, including base, conveying mechanism, several stamping structures and cleaning mechanism;Conveying mechanism provides synchronous movement power for stainless steel plate and stamping structure, and stamping structure moves synchronously with plate to realize follow-up continuous stamping, and cleaning mechanism can clean simultaneously after stamping plate and stamping structure;Conveying mechanism is equipped with up and down conveying chain and the upper and lower oil depot of different structure, and the opportunity of precise control of hydraulic oil supply and oil return;Stamping structure is composed of lower pressing die and die base, and the lower pressing die is controlled by hierarchical oil pressure to realize pre-stamping and formal stamping, cooperates multiple guide structure to improve stamping precision, and die base is equipped with linkage demoulding and buffer component, to ensure smooth demoulding;Cleaning mechanism is through the cooperation of cleaning roller, brush plate, fan and drying cover, to complete cleaning, cooling, drying and impurity collection.The application improves the processing efficiency and precision of stainless steel plate shallow stamping.

Description

Technical Field

[0001] This invention relates to the field of stamping equipment technology, and specifically to an online shallow stamping equipment for stainless steel. Background Technology

[0002] In the shallow stamping process of stainless steel sheets, traditional stamping equipment is mostly a fixed stamping structure, which cannot achieve continuous online processing of the sheet, thus limiting processing efficiency. Moreover, the supply and return control precision of hydraulic oil during the stamping process is insufficient, which can easily lead to problems such as untimely reset of the stamping structure and interference during demolding, affecting stamping accuracy. At the same time, oil stains, iron filings and other impurities are easily left on the surface of the mold after stamping. Existing cleaning methods mostly involve cleaning the mold or sheet separately, which has low cleaning efficiency and poor effect, and can easily reduce the processing quality of subsequent stamping, making it difficult to meet the process requirements of continuous online stamping. Summary of the Invention

[0003] In view of the above, it is necessary for the present invention to provide an online shallow stamping equipment for stainless steel to realize continuous online stamping of stainless steel sheets, thereby improving processing efficiency and stamping accuracy.

[0004] The technical solution of the present invention is as follows: A stainless steel online shallow stamping equipment includes a base, a conveying mechanism, several stamping structures, and a cleaning mechanism. The conveying mechanism is fixedly installed on the top surface of the base, and its core function is to provide conveying power for the synchronous movement of the stainless steel sheet and the stamping structures. Several stamping structures are installed on the conveying mechanism and move synchronously with the stainless steel sheet to achieve follow-up stamping. The cleaning mechanism is installed on the conveying mechanism and works in conjunction with the stamping structures to simultaneously clean the stamped stainless steel sheet and the stamping structures after the stamping operation, ensuring the cleanliness of the mold and the sheet.

[0005] Furthermore, the conveying mechanism is a chain-plate conveyor type hydraulic supply structure, specifically including a lower conveyor chain, a lower oil tank, an upper conveyor chain, and an upper oil tank. The lower conveyor chain is horizontally mounted above the machine base via several support legs. The lower oil tank is built inside the lower conveyor chain to provide hydraulic oil supply and return for the lower stamping structure. The upper conveyor chain is arranged parallel above the lower conveyor chain, and a gap is left between the upper and lower conveyor chains to accommodate the stamping structure, ensuring that the lifting and stamping actions of the stamping structure are not interfered with. The upper oil tank is fixed inside the upper conveyor chain to provide hydraulic oil supply and return for the upper stamping structure. Both the lower and upper conveyor chains are chain-plate conveyor structures, ensuring the synchronicity and stability of the conveying.

[0006] Furthermore, the lower oil tank includes a shell and a ring belt wrapped around the outside of the shell. The interior of the shell is divided into an oil supply chamber and an oil return chamber by a partition. The oil supply chamber is located close to the stainless steel plate, and an oil baffle is provided at the end that matches the feeding direction of the stainless steel plate to control the timing of hydraulic oil supply and prevent the hydraulic oil at the feeding end from flowing randomly. The ring belt moves synchronously with the conveyor chain, and several oil ports communicating with the oil supply chamber and the oil return chamber are opened on the ring belt to realize the transmission of hydraulic oil between the oil tank and the stamping structure.

[0007] Furthermore, the upper and lower oil chambers are of the same type of cavity structure, including a shell, a ring belt, an oil supply chamber, and an oil return chamber. The core difference between the upper and lower oil chambers is that the end of the oil return chamber that is matched with the end of the stainless steel sheet conveying direction extends to the end of the oil supply chamber. This allows the hydraulic oil in the stamping structure to enter the oil return process in advance, driving the stamping structure to reset in time. In addition, there is no baffle plate in the oil chamber of the upper oil chamber, ensuring that the upper die part of the stamping structure can descend smoothly to press the stainless steel sheet.

[0008] Furthermore, each stamping structure consists of a lower die and a die base that cooperate with each other. The lower die is fixed on the chain plate of the upper conveyor chain and moves synchronously with the upper conveyor chain. The die base is fixed on the chain plate of the lower conveyor chain and moves synchronously with the lower conveyor chain. Through the synchronous movement of the upper and lower conveyor chains, the lower die and the die base are always precisely aligned, thus realizing the follow-up precision stamping of stainless steel sheets.

[0009] Furthermore, the lower die includes an oil inlet pipe, a lifting plate, a composite pad, and an upper die plate. One end of the oil inlet pipe is connected to the oil port of the ring belt, and the other end is connected to the lifting plate to supply hydraulic oil to the lower die. The lifting plate is slidably connected to the chain plate of the upper conveyor chain and can be raised and lowered in the vertical direction to provide a displacement basis for stamping. The composite pad is fixed on the lower surface of the lifting plate away from the chain plate, and a pressure chamber is opened in the middle of the composite pad. The upper die plate is slidably installed in the pressure chamber. The pressure formed by the hydraulic oil in the pressure chamber can push the upper die plate to rise and fall, thereby realizing the stamping of stainless steel sheets.

[0010] Furthermore, the top surface of the lifting plate protrudes with an oil passage pipe and two symmetrically arranged sliding pipes. The oil passage pipe is connected to the oil inlet pipe, providing a flow channel for hydraulic oil. The sliding pipes slide into the sliding holes of the upper conveyor chain plate, realizing the sliding engagement between the lifting plate and the chain plate. A limit rod is provided on the chain plate at the position corresponding to the sliding pipe to limit the lifting stroke of the lifting plate. The bottom end of the oil passage pipe is connected to intersecting lifting oil passages and pre-pressurization oil passages. The lifting oil passages are connected to the sliding pipes, and a lifting rod is inserted into the sliding pipe. One end of the lifting rod abuts against the limit rod. After the hydraulic oil enters the sliding pipe, it can push the lifting plate to slide relative to the lifting rod. The pre-pressurization oil passage passes through the composite pad layer and is connected to the pressure chamber. A one-way valve is installed in the pre-pressurization oil passage to prevent hydraulic oil backflow and realize pre-pressurization oil pressure control. The intersection of the lifting oil passage and the pre-pressurization oil passage is connected to the pressure chamber, and a pressure valve is installed at this intersection position to realize high-pressure control of formal pressing.

[0011] Furthermore, the composite pad is made of three layers of plates stacked and pressed together. The top plate has a hollow center that connects to the oil pipe and pre-pressurization oil passage, providing space for hydraulic oil flow. The middle plate has several grids in the center that cooperate with the top of the upper template, providing precise guidance for the lifting and lowering of the upper template and preventing horizontal deviation during the stamping process. The bottom plate has a hollow center that forms the lower space of the pressure chamber, providing space for the stamping action of the upper template. The composite pad has a return oil channel, in which a back oil valve and a pressure isolation valve are installed in sequence to achieve directional discharge and pressure isolation of hydraulic oil, ensuring smooth lifting and lowering of the upper template.

[0012] Furthermore, the mold base includes a fixed plate and a lower template. The fixed plate is fixed to the chain plate of the lower conveyor chain and has an oil storage chamber inside. The bottom surface is provided with an oil supply pipe that communicates with the oil storage chamber. The oil supply pipe is connected to the oil port of the lower oil tank to realize the supply of hydraulic oil from the lower oil tank to the oil storage chamber. The lower template is slidably installed in the oil storage chamber. The hydraulic oil pressure in the oil storage chamber can push the lower template to rise vertically and cooperate with the upper template of the lower pressing mold to complete the stamping. Several positioning posts and several buffers are fixed on the upper surface of the fixed plate. The positioning posts realize the precise alignment of the lower pressing mold and the mold base. The buffers play a role in stamping buffer. The fixed plate is equipped with ejector plates on both sides along the conveying direction of the stainless steel sheet. The ejector plates and the guide posts of the buffers are connected through a transmission structure to realize the linkage between the demolding and stamping actions.

[0013] Furthermore, the cleaning mechanism is an integrated cleaning and drying structure, including two cleaning rollers, a brush plate, a fan, and a drying hood. The two cleaning rollers are connected to the end of the upper conveyor chain, corresponding to the reset position after the stamping structure has completed stamping. The cleaning rollers are hollow rollers and can be filled with degreasing agent to clean the oil stains on the surface of the upper template and stainless steel plate. A wastewater tank is provided on the side to collect the oily wastewater after cleaning. The brush plate is fixed to the bottom surface of the lower conveyor chain, and its top surface is provided with brush strips that contact the bottom surface of the lower template to brush away iron filings and impurities on the surface of the lower template. The fan is fixed on the base, and the air inlet is connected to the brush plate to extract air from the brush plate, thereby cooling the lower template and collecting impurities. The air outlet is connected to the drying hood fixed to the top surface of the upper conveyor chain to deliver hot air into the drying hood to dry the cleaned upper template.

[0014] Beneficial effects: 1. This invention uses a conveying mechanism to drive the stamping structure and stainless steel sheet to move synchronously, realizing continuous online stamping. This breaks the processing limitations of traditional fixed stamping equipment, greatly improves the processing efficiency of shallow stamping of stainless steel sheets, and is suitable for large-scale production needs.

[0015] 2. By designing a hydraulic oil control structure with differentiated upper and lower oil tanks, the lower oil tank is equipped with an oil baffle to control the timing of oil supply, and the upper oil tank's return oil chamber extends to the end of the supply oil chamber to achieve early oil return. This accurately controls the timing of hydraulic oil supply and return, effectively avoiding interference between the stamping structure and the sheet metal during resetting, and improving the stability of the stamping operation.

[0016] 3. The lower die adopts a graded hydraulic control structure with lifting oil channels and pre-pressing oil channels. With the help of check valves and pressure valves, it realizes graded operation of pre-pressing and formal pressing. At the same time, through the grid guidance of positioning pins, positioning holes and composite pads, it realizes the precise alignment of the die and the stable guidance of the upper template, which greatly improves the shallow pressing accuracy of stainless steel sheets.

[0017] 4. The integrated cleaning mechanism, through the coordinated operation of cleaning rollers, brush plates, fans and drying hoods, can simultaneously clean oil stains and remove iron filings from stainless steel sheets, upper and lower mold plates after stamping. It can also cool and dry the mold, ensuring the cleanliness of the stamping structure and preventing impurities from affecting the subsequent stamping quality.

[0018] 5. The demolding assembly and buffer components of the stamping structure are linked. During stamping, the demolding plate descends to avoid interference, and automatically rises after stamping to achieve demolding. No additional demolding drive structure is required, which simplifies the equipment structure and ensures smooth demolding, further improving the operating efficiency of the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the stainless steel online shallow stamping equipment of the present invention; Figure 2 This is a schematic diagram of the overall cross-sectional structure of the stainless steel online shallow stamping equipment of the present invention, excluding the machine base; Figure 3 This is a partial cross-sectional structural diagram of the pressing die; Figure 4 This is a schematic cross-sectional view of the sealing chamber. Figure 5 This is a schematic diagram of a partial cross-sectional structure of the mold base.

[0020] The annotations in the attached figures are explained as follows: 1. Base; 2. Conveying mechanism; 21. Lower conveyor chain; 22. Lower oil tank; 221. Housing; 222. Ring belt; 223. Oil supply chamber; 224. Oil return chamber; 225. Oil baffle; 23. Upper conveyor chain; 24. Upper oil tank; 3. Stamping structure; 31. Oil inlet pipe; 32. Lifting plate; 321. Oil passage pipe; 322. Sliding pipe; 3221. Elastic block; 323. Lifting oil passage; 324. Pre-compression oil passage; 325. Lifting rod; 326. Check valve; 327. Pressure valve; 33 331. Composite pad; 332. Pressure chamber; 333. Sealing chamber; 334. Sealing plate; 335. Through hole; 336. Oil return channel; 337. Oil return valve; 34. Pressure isolation valve; 35. Upper template; 36. Fixing plate; 37. Oil storage chamber; 38. Oil delivery pipe; 39. Lower template; 40. Positioning column; 31. Buffer component; 32. Guide column; 43. Buffer spring; 44. Template removal; 55. Cleaning mechanism; 46. Cleaning roller; 47. Brush plate; 48. Fan; 49. Drying hood. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0022] like Figure 1 As shown, the present invention provides an online shallow stamping equipment for stainless steel, including a base 1, a conveying mechanism 2, several stamping structures 3, and a cleaning mechanism 4. The conveying mechanism 2 is fixedly installed on the top surface of the base 1, providing conveying power for the synchronous movement of the stainless steel sheet and the stamping structures 3. The several stamping structures 3 are installed on the conveying mechanism 2 and move synchronously with the stainless steel sheet to achieve follow-up stamping. The cleaning mechanism 4 is also installed on the conveying mechanism 2 and cooperates with the stamping structures 3 to simultaneously clean the stamped stainless steel sheet and the stamping structures 3 after the stamping operation, ensuring the accuracy of subsequent stamping operations and the processing quality of the stainless steel sheet.

[0023] Please combine Figure 2 The conveying mechanism 2 includes a lower conveyor chain 21, a lower oil tank 22, an upper conveyor chain 23, and an upper oil tank 24. The lower conveyor chain 21 is horizontally mounted above the base 1 via several support legs. The lower oil tank 22 is built inside the lower conveyor chain 21 to provide hydraulic oil supply and return for the lower stamping structure 3. The upper conveyor chain 23 is arranged parallel above the lower conveyor chain 21, and a gap is left between the upper and lower conveyor chains to accommodate the stamping structure 3, ensuring that the lifting and stamping actions of the stamping structure 3 are not interfered with. The upper oil tank 24 is fixed inside the upper conveyor chain 23, and its core function is the same as that of the lower oil tank 22, providing hydraulic oil supply and return for the upper stamping structure 3. In this embodiment, both the lower conveyor chain 21 and the upper conveyor chain 23 adopt conventional chain plate conveying structures to ensure the synchronicity and stability of the conveying.

[0024] The lower oil tank 22 includes a shell 221 and an annular belt 222 wrapped around the outside of the shell 221. A partition is fixedly installed horizontally inside the shell 221, dividing the internal space into two independent chambers: an oil supply chamber 223 near the stainless steel plate and an oil return chamber 224 opposite to it. The oil supply chamber 223 stores and outputs hydraulic oil, while the oil return chamber 224 recovers the hydraulic oil after hydraulic drive. An oil baffle 225 is installed at the end of the oil supply chamber 223 that aligns with the feeding direction of the stainless steel plate. The oil baffle 225 effectively prevents the hydraulic oil in the oil supply chamber 223 from flowing at the feeding end, thus controlling the timing of hydraulic oil supply. The annular belt 222 wraps around the outer periphery of the shell 221 and moves synchronously with the conveyor chain. Several oil ports are opened on the annular belt 222, which can connect to the oil supply chamber 223 and the oil return chamber 224 to realize the transmission of hydraulic oil.

[0025] The basic structures of the upper oil chamber 24 and the lower oil chamber 22 are roughly the same, both including a shell, a ring belt, an oil supply chamber, and an oil return chamber. The core difference is that the oil return chamber in the upper oil chamber 24, which is used for oil return, extends to the end of the oil supply chamber used for oil supply at the end of the stainless steel sheet conveying direction. This structural design allows the hydraulic oil inside the stamping structure 3 to enter the oil return process in advance, driving the stamping structure 3 to complete the reset action, effectively avoiding structural interference when the stamping structure 3 separates from the stamped stainless steel sheet, and ensuring smooth demolding and conveying. At the same time, the upper oil chamber 24 does not have an oil baffle 225, which allows the upper die part of the stamping structure 3 to descend smoothly and press the stainless steel sheet.

[0026] Each stamping structure 3 consists of a lower die and a die base that cooperate with each other. The lower die is fixed on the chain plate of the upper conveyor chain 23 and moves synchronously with the upper conveyor chain 23. The die base is fixed on the chain plate of the lower conveyor chain 21 and moves synchronously with the lower conveyor chain 21. The synchronous movement of the upper and lower conveyor chains ensures that the lower die and the die base are always aligned and cooperated, so as to achieve precise stamping.

[0027] like Figures 2-4 As shown, the lower die includes an oil inlet pipe 31, a lifting plate 32, a composite pad 33, and an upper die plate 34. One end of the oil inlet pipe 31 is fixedly connected to the oil port of the ring belt 222 to communicate with the hydraulic oil in the upper oil tank 24, and the other end is connected to the lifting plate 32 to supply hydraulic oil to the lower die. The lifting plate 32 is slidably connected to the chain plate of the upper conveyor chain 23 and can rise and fall relative to the chain plate in the vertical direction to provide a displacement basis for stamping. The composite pad 33 is fixedly connected to the lower surface of the lifting plate 32 away from the chain plate. A pressure chamber 331 is opened in the middle of the composite pad 33. The pressure chamber 331 provides a space for the hydraulic oil and guides the rise and fall of the upper die plate 34. The hydraulic oil can form pressure in the pressure chamber 331 to push the upper die plate 34 to move. The upper die plate 34 is slidably installed in the pressure chamber 331 and descends vertically along the pressure chamber 331 under the pressure of the hydraulic oil to realize the stamping operation of stainless steel sheet.

[0028] The top surface of the lifting plate 32 protrudes upwards with an oil passage pipe 321 and two sliding pipes 322. The oil passage pipe 321 is connected to the oil inlet pipe 31, and hydraulic oil flows into the oil passage pipe 321 through the oil inlet pipe 31. The two sliding pipes 322 are symmetrically arranged on both sides of the oil passage pipe 321, and the sliding pipes 322 are slidably inserted into the sliding holes opened on the upper conveyor chain 23 to realize the sliding connection between the lifting plate 32 and the chain plate. A limit rod is provided on the chain plate at the position corresponding to the sliding pipe 322. The limit rod cooperates with the port of the two sliding pipes 322 to limit the lifting stroke of the lifting plate 32.

[0029] The bottom end of the oil pipe 321 is connected to intersecting lifting oil channels 323 and pre-pressing oil channels 324. The lifting oil channels 323 are connected to the sliding pipes 322 on both sides. Each sliding pipe 322 is equipped with a sliding lifting rod 325. The end of the lifting rod 325 that cooperates with the port of the sliding pipe 322 abuts against the limit rod. After the hydraulic oil enters the sliding pipe 322, the hydraulic pressure generated pushes the lifting plate 32 to slide vertically relative to the lifting rod 325, so that the lifting plate 32 moves away from the chain plate of the upper conveyor chain 23, realizing the overall descent of the lower pressing mold.

[0030] The pre-pressing oil passage 324 extends to the edge of the lifting plate 32 and extends vertically downwards. After passing through the composite pad 33, it connects with the pressure chamber 331. The oil outlet of the pre-pressing oil passage 324 is opened on the inner wall of the pressure chamber 331 and is located below the upper template 34. A one-way valve 326 is installed in the pre-pressing oil passage 324. The one-way valve 326 can prevent hydraulic oil backflow. Only when the hydraulic oil pressure reaches the preset value will the one-way valve 326 open, and the hydraulic oil will flow from the oil outlet into the pressure chamber 331 to achieve pre-pressing of the stainless steel plate.

[0031] The intersection of the lifting oil channel 323 and the pre-pressurization oil channel 324 is connected to the pressure chamber 331, and a pressure valve 327 is installed at this intersection. The pressure valve 327 is a high-pressure opening valve. When the hydraulic oil pressure reaches the set value required for stamping, the pressure valve 327 is pushed open, and the hydraulic oil in the lifting oil channel 323 enters the pressure chamber 331, forming a greater pressure to push the upper template 34 to complete the formal stamping.

[0032] To improve the positional stability of the lifting plate 32 after movement, several grooves are provided circumferentially at the top of the two sliding tubes 322. Each groove contains an elastic block 3221 that can slide along the groove. The end of the lifting rod 325 near the lifting oil passage 323 is provided with an inclined surface. The bottom end of the limiting rod on the upper conveyor chain 23 is provided with a positioning groove that matches the elastic block 3221. When the lifting rod 325 slides away from the lifting oil passage 323, the inclined surface of the lifting rod 325 abuts against the elastic block 3221, pushing the elastic block 3221 to slide outward along the groove and insert into the positioning groove of the limiting rod, thereby realizing the locking connection between the sliding tube 322 and the limiting rod. By locking the position of the sliding tube 322, the position of the lifting plate 32 is fixed, preventing the lifting plate 32 from shifting during the stamping process and ensuring stamping accuracy.

[0033] The composite pad 33 is made of three layers of plates stacked and pressed together. The three layers work together to achieve the functions of hydraulic oil guidance, upper template guidance and accommodating. Among them: the top layer of plates has a hollowed-out middle section, which is connected to the oil pipe 321 and the pre-pressurization oil passage 324 for the flow and transmission of hydraulic oil; the middle layer of plates has several grids at equal intervals in the middle section, and the top of the upper template 34 cooperates with the grids. The grids provide precise guidance for the lifting and lowering of the upper template 34 and prevent the upper template 34 from shifting horizontally during the stamping process; the bottom layer of plates also has a hollowed-out middle section, which forms the lower space of the pressure chamber 331 to accommodate the upper template 34 and provide space for the stamping action of the upper template 34.

[0034] An oil outlet connected to the pre-pressure oil passage 324 on the composite pad 33 is located on the lowest plate. A sealing chamber 332 is connected to the side of the oil outlet. The sealing chamber 332 is an internal cavity containing a sealing plate 333 that can slide elastically in the horizontal direction. One end of the sealing plate 333 extends to the oil outlet of the pre-pressure oil passage 324 to seal the outlet, while the other end is located inside the sealing chamber 332 and has an inclined surface facing the pressure chamber 331. The sealing chamber 332 and the inclined surface of the sealing plate 333 are positioned to mate. A through hole 334 is provided, which connects the sealing plate chamber 332 and the pressure chamber 331. When the hydraulic oil pressure in the pressure chamber 331 reaches the set value, the hydraulic oil passes through the through hole 334 and enters the sealing plate chamber 332. The hydraulic pressure acts on the inclined surface of the sealing plate 333, pushing the sealing plate 333 to slide horizontally until the sealing plate 333 completely blocks the oil outlet of the pre-pressurized oil passage 324, preventing the hydraulic oil from continuously entering the pressure chamber 331 from the pre-pressurized oil passage 324, thus ensuring the stability of the hydraulic pressure in the pressure chamber 331.

[0035] When the upper template 34 approaches the stainless steel plate under the action of hydraulic oil, the hydraulic oil between the upper template 34 and the surface of the stainless steel plate in the pressure chamber 331 needs to be discharged in time so that the upper template 34 can be tightly pressed against the stainless steel plate to complete the stamping operation. For this purpose, a return oil channel 335 is also provided on the composite pad 33. The bottom end of the return oil channel 335 extends to the bottom surface of the composite pad 33, and a sinking groove with a small gap is provided at the bottom end. The return oil channel 335 is connected to the pressure chamber 331 through the sinking groove. The other end of the return oil channel 335 extends upward to the top plate of the composite pad 33 and is connected to the upper space of the pressure chamber 331.

[0036] A backflow valve 336 is installed in the return oil channel 335. The backflow valve 336 is a one-way valve, which only allows the hydraulic oil below the upper template 34 to flow unidirectionally to the top of the upper template 34 through the return oil channel 335, so as to realize the directional discharge of hydraulic oil. Downstream of the backflow valve 336 in the return oil channel 335, a pressure isolation valve 337 is further installed. The pressure isolation valve 337 can isolate the hydraulic oil pressure at both ends, so as to prevent the hydraulic oil above the upper template 34 from pushing the upper template 34 to press under high pressure, and the hydraulic oil below the upper template 34 from forming a pressure balance state through the return oil channel 335, which would cause the upper template 34 to jam or get stuck. This ensures that the lifting and lowering of the upper template 34 is smooth.

[0037] like Figure 5As shown, the mold base includes a fixed plate 35 and a lower template 36. The fixed plate 35 is fixedly installed on the chain plate of the lower conveyor chain 21 and moves synchronously with the lower conveyor chain 21. An oil storage chamber 351 is provided inside the fixed plate 35 to contain hydraulic oil. An oil supply pipe 352 is provided on the bottom surface of the fixed plate 35, which connects the oil storage chamber 351 to the oil port of the lower oil tank 22, so as to realize the supply of hydraulic oil from the lower oil tank 22 to the oil storage chamber 351. The lower template 36 can be slidably installed in the oil storage chamber 351 in the vertical direction. When the oil storage chamber 351 is filled with hydraulic oil, the pressure formed by the hydraulic oil pushes the lower template 36 to rise vertically, and cooperates with the descending upper template 34 to complete the stamping and forming of the stainless steel sheet.

[0038] The upper surface of the fixed plate 35, which cooperates with the lifting plate 32, is fixed with a number of positioning posts 37 and a number of buffers 38. The lifting plate 32 is provided with positioning holes that are adapted to the positioning posts 37. When the pressing die descends and cooperates with the die base, the positioning posts 37 are inserted into the positioning holes to achieve precise alignment between the pressing die and the die base, ensuring that the two do not shift horizontally during stamping and improving stamping accuracy.

[0039] Each buffer component 38 has a guide post 381 and a buffer spring 382 sleeved on the outside of the guide post 381. The guide post 381 is slidably inserted into the fixed plate 35 in the vertical direction and is located between several positioning posts 37. The two ends of the buffer spring 382 are fixedly connected to the upper surface of the fixed plate 35 and the free end of the guide post 381, respectively. When the lifting plate 32 descends, it pushes against the guide post 381 to make it descend vertically and compress the buffer spring 382. After the stamping is completed, the lifting plate 32 rises and the guide post 381 is reset under the elastic restoring force of the buffer spring 382.

[0040] On both sides of the fixed plate 35 along the conveying direction of the stainless steel sheet, there are also ejector plates 39. The ejector plates 39 and the guide columns 381 are connected by a transmission structure to achieve linkage action: Specifically, when the upper platen 34 descends for stamping, it drives the lifting plate 32 to press down against the guide column 381. The guide column 381 drives the ejector plate 39 to descend vertically through the transmission structure, so that the top surface of the ejector plate 39 is lower than the top surface of the fixed plate 35 to avoid interference with the stamping action; after the stamping is completed, the guide column 381 returns to its original position and rises under the action of the buffer spring 382. Through the transmission structure, it drives the ejector plate 39 to rise synchronously. The top surface of the ejector plate 39 presses against the bottom surface of the stamped stainless steel sheet, pushing the stainless steel sheet to rise and achieve demolding from the mold base, ensuring smooth conveying of the stainless steel sheet.

[0041] like Figure 1 , Figure 2As shown, the cleaning mechanism 4 includes two cleaning rollers 41, a brush plate 42, a fan 43, and a drying hood 44. The components work together to clean, cool, and dry the stamping structure 3, while removing impurities generated during stamping, ensuring the cleanliness of the stamping structure 3 and the subsequent stamping effect.

[0042] Two cleaning rollers 41 are connected to the end of the upper conveyor chain 23, corresponding to the reset position after the stamping structure 3 has completed stamping. One cleaning roller 41 is elastically and slidably installed at the end of the upper conveyor chain 23 to adapt to the position change of the stamping structure 3, while the other cleaning roller 41 is close to the upper surface of the stainless steel plate. The cleaning roller 41 is designed as a hollow roller structure, and degreasing agent can be continuously introduced into its interior. The degreasing agent seeps through the wall of the cleaning roller 41 to its outer surface. When the cleaning roller 41 contacts the upper template 34, it can efficiently clean the oil stains adhering to the surface of the upper template 34. At the same time, the contact between the degreasing agent and the upper template 34 can cool the upper template 34 after high-temperature stamping. A sewage tank is provided on the side of the cleaning roller 41. The oily sewage after cleaning the oil stains can flow into the sewage tank to achieve centralized collection of sewage and avoid contamination of equipment and stainless steel plates.

[0043] The brush plate 42 is fixed on the bottom surface of the lower conveyor chain 21. Several brush strips are provided on the top surface of the brush plate 42. The brush strips are in contact with the bottom surface of the lower template 36. When the lower conveyor chain 21 moves the lower template 36, the brush strips can brush and clean the surface of the lower template 36, removing iron filings, impurities and other debris generated by the deformation of the stainless steel sheet during the stamping process, ensuring the surface of the lower template 36 is clean.

[0044] The blower 43 is fixedly installed on the base 1. The air inlet of the blower 43 is fixedly connected to the brush plate 42 through an air pipe. When the blower 43 is working, it can draw out the air between the brush plate 42 and the lower template 36. The rapid flow of air can cool down the template 36 under high temperature after stamping. At the same time, the iron filings and impurities generated by brushing are drawn out with the airflow and filtered and collected by the blower's filter structure. The air outlet of the blower 43 is fixedly connected to the drying hood 44. The drying hood 44 is fixed on the top surface of the upper conveyor chain 23 and corresponds to the cleaning position of the cleaning roller 41. The air drawn out by the blower 43 is heated to form hot air after heat exchange and is delivered to the drying hood 44 through the air outlet. The hot air dries the upper template 34 after it has been cleaned by the cleaning roller 41, removes the degreasing agent residue on the surface of the upper template 34, and ensures that the upper template 34 is dry and clean.

[0045] The stainless steel online shallow stamping equipment of the present invention realizes continuous online stamping of stainless steel sheets. The specific working process is as follows: The stainless steel sheet enters the gap between the upper and lower conveyor chains along the conveying direction. At this time, the mold base corresponds to the oil supply chamber 223 of the lower oil tank 22. The oil baffle 225 blocks the flow of hydraulic oil in the oil supply chamber 223, and the oil storage chamber 351 has no hydraulic oil supply. The mold base does not move temporarily. Meanwhile, the oil inlet pipe 31 of the lower pressing mold is connected to the oil supply chamber of the upper oil tank 24. The hydraulic oil flows into the oil pipe 321 through the oil inlet pipe 31 and further flows into the sliding pipe 322. The hydraulic pressure pushes the lifting plate 32 to descend vertically, which cooperates with the fixed plate 35 to clamp the stainless steel sheet. At the same time, the lifting rod 325 cooperates with the limit rod to lock the lifting plate 32 and ensure the clamping stability. After the lifting plate 32 is locked, the pressure of the hydraulic oil continues to rise. When the pressure reaches the pre-press preset value, the one-way valve 326 in the pre-press oil passage 324 is pushed open, and the hydraulic oil flows from the oil outlet into the pressure chamber 331 and enters between the stainless steel plate and the upper template 34. Under the action of hydraulic pressure, the stainless steel plate is spherically concave into the oil storage chamber 351 of the fixed plate 35, so that the stainless steel plate at the stamping point is stretched evenly, completing the pre-pressing of the stainless steel plate and preparing for the formal stamping. As the lower conveyor chain 21 and the upper conveyor chain 23 rotate synchronously, the fixed plate 35 moves to a position away from the oil baffle plate 225. The hydraulic oil in the oil supply chamber 223 of the lower oil tank 22 flows into the oil storage chamber 351 through the oil delivery pipe 352, pushing the lower template 36 to rise vertically. At the same time, the hydraulic oil pressure in the lifting plate 32 continues to rise to the stamping set value, pushing open the pressure valve 327 and entering the pressure chamber 331. This hydraulic pressure also pushes the sealing plate 333 to slide against the elastic effect, blocking the oil outlet of the pre-pressed oil passage 324. The high-pressure hydraulic oil in the pressure chamber 331 pushes the upper template 34 to fall vertically, squeezing the hydraulic oil between the upper template 34 and the stainless steel plate, pushing open the back oil valve 336, entering the return oil channel 335 and being discharged in a direction. After the hydraulic oil return is completed, the falling upper template 34 and the rising lower template 36 precisely cooperate to stamp and shape the stainless steel plate, completing the formal stamping operation. When the stainless steel sheet moves to the discharge end position with the conveyor chain, the oil return chamber of the upper oil tank 24 returns oil in advance, and the hydraulic oil in the lower mold flows back. Under the action of the oil return in the upper oil tank 24, the upper mold plate 34 rises vertically to reset. At the same time, the oil return chamber of the lower oil tank 22 begins to return oil, and the hydraulic oil in the oil storage chamber 351 flows back. The lower mold plate 36 descends vertically to reset simultaneously. The guide column 381 resets and rises under the action of the elastic restoring force of the buffer spring 382, ​​driving the demolding mold plate 39 to rise synchronously. The demolding mold plate 39 abuts against the bottom surface of the stamped stainless steel sheet, pushing the stainless steel sheet to separate from the mold base, thus completing the demolding. After demolding, the stainless steel sheet continues to be conveyed. Two cleaning rollers 41 contact the upper template 34 and the upper surface of the stainless steel sheet respectively, using the internal degreasing agent to clean the oil stains on both surfaces, while simultaneously cooling the upper template 34. When the lower conveyor chain 21 moves the lower template 36, the brush strips of the brush plate 42 brush the surface of the lower template 36 to remove iron filings and impurities. The blower 43 operates to extract the air between the brush plate 42 and the lower template 36, thereby cooling the lower template 36 and collecting impurities. At the same time, the blower 43 delivers hot air to the drying hood 44 to dry the upper template 34 after it has been cleaned by the cleaning rollers 41, removing the degreasing agent residue and completing the cleaning operation. The stamping structure 3 is then restored to a clean state and can proceed to the next round of stamping operations.

[0046] In summary, the stainless steel online shallow stamping equipment provided by this invention achieves continuous online stamping by synchronously moving the stamping structure and stainless steel sheet through a conveying mechanism, thus solving the problem of low processing efficiency of traditional fixed stamping equipment. By designing a differentiated hydraulic oil control structure for the upper and lower oil tanks, the timing of oil supply and return is precisely controlled, avoiding interference during stamping structure reset and improving stamping stability. The graded hydraulic pressure control and precise guiding structure of the lower die enable graded operations for pre-stamping and formal stamping, significantly improving stamping accuracy. Simultaneously, an integrated cleaning mechanism simultaneously cleans, cools, and dries the stamping structure and sheet, ensuring the quality of subsequent stamping. The overall equipment structure is rationally designed, combining operational efficiency and processing accuracy, making it suitable for large-scale shallow stamping applications of stainless steel sheets.

[0047] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A stainless steel online shallow stamping equipment, characterized in that, It includes a base (1), a conveying mechanism (2), several stamping structures (3) and a cleaning mechanism (4); the conveying mechanism (2) is fixedly installed on the top surface of the base (1) to provide conveying power for the stainless steel sheet and the stamping structure (3) to move synchronously; several of the stamping structures (3) are installed on the conveying mechanism (2) and move synchronously with the stainless steel sheet to realize follow-up stamping; the cleaning mechanism (4) is installed on the conveying mechanism (2) and cooperates with the stamping structure (3) to clean the stainless steel sheet after stamping and the stamping structure (3) after the stamping operation at the same time.

2. The stainless steel online shallow stamping equipment according to claim 1, characterized in that, The conveying mechanism (2) includes a lower conveying chain (21), a lower oil tank (22), an upper conveying chain (23), and an upper oil tank (24). The lower conveying chain (21) is mounted horizontally above the base (1) by several legs. The lower oil tank (22) is built inside the lower conveying chain (21). The upper conveying chain (23) is arranged parallel above the lower conveying chain (21), and a gap is left between the upper and lower conveying chains to accommodate the stamping structure (3). The upper oil tank (24) is fixed inside the upper conveying chain (23). Both the lower conveying chain (21) and the upper conveying chain (23) are chain plate conveying structures.

3. The stainless steel online shallow stamping equipment according to claim 2, characterized in that, The lower oil tank (22) includes a shell (221) and an annular belt (222) wrapped around the outside of the shell (221). The interior of the shell (221) is divided into an oil supply chamber (223) and an oil return chamber (224) by a partition. The oil supply chamber (223) is located close to the stainless steel plate, and an oil baffle (225) is provided at one end that is in the same direction as the feed of the stainless steel plate. The annular belt (222) moves synchronously with the conveyor chain, and several oil ports communicating with the oil supply chamber (223) and the oil return chamber (224) are opened on the annular belt (222).

4. The stainless steel online shallow stamping equipment according to claim 2, characterized in that, The upper oil tank (24) includes a shell, a ring belt, an oil supply chamber and an oil return chamber. The end of the oil return chamber that is matched with the end of the stainless steel plate conveying direction extends to the end of the oil supply chamber, and no oil baffle is provided in the oil chamber of the upper oil tank (24).

5. The stainless steel online shallow stamping equipment according to claim 1, characterized in that, Each stamping structure (3) consists of a lower die and a die base that cooperate with each other. The lower die is fixed on the chain plate of the upper conveyor chain (23), and the die base is fixed on the chain plate of the lower conveyor chain (21).

6. The stainless steel online shallow stamping equipment according to claim 5, characterized in that, The pressing mold includes an oil inlet pipe (31), a lifting plate (32), a composite pad (33), and an upper template (34); one end of the oil inlet pipe (31) is connected to the oil port of the ring belt (222), and the other end is connected to the lifting plate (32). The lifting plate (32) is slidably connected to the chain plate of the upper conveyor chain (23). The composite pad (33) is fixed on the lower surface of the lifting plate (32) away from the chain plate, and a pressure chamber (331) is opened in the middle of the composite pad (33). The upper template (34) is slidably installed in the pressure chamber (331).

7. The stainless steel online shallow stamping equipment according to claim 6, characterized in that, The top surface of the lifting plate (32) protrudes from an oil passage (321) and two symmetrically arranged sliding pipes (322). The oil passage (321) is connected to the oil inlet pipe (31). The sliding pipes (322) slide into the sliding holes of the upper conveyor chain (23) chain plate, and a limiting rod is provided on the chain plate corresponding to the position of the sliding pipe (322). The bottom end of the oil passage (321) is connected to intersecting lifting oil channels (323) and pre-pressurization oil channels (324). The lifting oil channels (323) and the sliding pipes (324) are connected to each other. The moving pipe (322) is connected, and a lifting rod (325) is inserted into the sliding pipe (322). One end of the lifting rod (325) abuts against the limiting rod. The pre-pressure oil passage (324) passes through the composite pad (33) and is connected to the pressure chamber (331). A one-way valve (326) is installed in the pre-pressure oil passage (324). The intersection of the lifting oil passage (323) and the pre-pressure oil passage (324) is connected to the pressure chamber (331). A pressure valve (327) is installed at this intersection.

8. The stainless steel online shallow stamping equipment according to claim 6, characterized in that, The composite pad (33) is formed by stacking and pressing three layers of plates. The top plate has a hollow center and is connected to the oil pipe (321) and the pre-pressing oil channel (324). The middle plate has several grids in the center and cooperates with the top of the upper template (34). The bottom plate has a hollow center to form the lower space of the pressure chamber (331). The composite pad (33) has a return oil channel (335) on it. The return oil channel (335) is installed with a back oil valve (336) and a pressure isolation valve (337) in sequence.

9. The stainless steel online shallow stamping equipment according to claim 5, characterized in that, The mold base includes a fixed plate (35) and a lower template (36). The fixed plate (35) is fixed on the chain plate of the lower conveyor chain (21). An oil storage chamber (351) is opened inside the fixed plate. An oil delivery pipe (352) communicating with the oil storage chamber (351) is provided on the bottom surface. The oil delivery pipe (352) is connected to the oil port of the lower oil tank (22). The lower template (36) is slidably installed in the oil storage chamber (351). Several positioning columns (37) and several buffers (38) are fixed on the upper surface of the fixed plate (35). A stripping template (39) is installed on both sides along the conveying direction of the stainless steel plate. The stripping template (39) and the guide column (381) of the buffer (38) are connected through a transmission structure.

10. The stainless steel online shallow stamping equipment according to claim 1, characterized in that, The cleaning mechanism (4) includes two cleaning rollers (41), a brush plate (42), a fan (43), and a drying hood (44). The two cleaning rollers (41) are connected to the end of the upper conveyor chain (23). The cleaning rollers (41) are hollow rollers and can be filled with degreasing agent. A sewage tank is provided on the side of the rollers. The brush plate (42) is fixed on the bottom surface of the lower conveyor chain (21). The top surface of the brush plate is provided with brush strips that contact the bottom surface of the lower template (36). The fan (43) is fixed on the base (1). The air inlet is connected to the brush plate (42), and the air outlet is connected to the drying hood (44) fixed on the top surface of the upper conveyor chain (23).

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