Forming process and forming device of ultra-thin film

Abstract

The invention discloses a forming process and a forming device of an ultra-thin diaphragm, and relates to the technical field of diaphragm forming, and the forming process comprises the following steps: cleaning the diaphragm by adopting a cleaning assembly, uniformly smearing stamping oil on the cleaned diaphragm through a coating assembly, fixing the diaphragm smeared with the stamping oil on a mold, and forming a central hole; the deformation stress in the forming process is released in advance, the diaphragm is subjected to segmented stamping to form a formed diaphragm, and the formed diaphragm is subjected to post-treatment; the forming process is set, the forming sequence is optimized, a center hole is pre-punched before arc forming, deformation stress in the arc forming process is released, the conditions of cracking, deformation and wrinkling of a diaphragm in the forming process are reduced, the profile of a cavity of the die is completely matched with a continuous arc structure of the diaphragm, continuous pressure maintaining operation is conducted during punch forming, and the production efficiency is improved. And the membrane is cleaned through the cleaning assembly, and membrane cracking caused by particle extrusion is avoided.

Description

Technical Field

[0001] This invention belongs to the field of diaphragm forming technology, specifically a forming process and apparatus for an ultra-thin diaphragm. Background Technology

[0002] A diaphragm is a thin, flat component, usually made of elastic or plastic materials, that plays an important role in many fields. As a sensing element in a pressure reducing valve, the diaphragm senses changes in the valve's outlet pressure and then relies on a regulating system to adjust it, keeping the downstream pressure constant within a certain error range. Ultra-thin diaphragms refer to diaphragms that are extremely thin, as thin as 0.05 mm, and are designed with a continuous arc structure to provide a natural bending area and eliminate the effects of metal fatigue.

[0003] Existing ultrathin diaphragm forming processes typically involve fixing the diaphragm onto a mold and then stamping it. However, due to the ultrathin thickness of the diaphragm (only 0.05mm), cracking, deformation, and wrinkling may occur during the forming process. Furthermore, the formed diaphragm structure has a continuous arc, resulting in insufficient arc forming height, which reduces the effectiveness of the ultrathin diaphragm forming process and fails to meet people's needs. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes a molding process and molding device for ultrathin films.

[0005] A molding process for an ultrathin membrane includes the following specific steps:

[0006] S1: Clean the diaphragm using a cleaning component;

[0007] S2: Apply stamping oil evenly to the cleaned diaphragm using the coating component;

[0008] S3: Fix the film coated with stamping oil onto the mold and make a center hole to release the deformation stress during the molding process in advance;

[0009] S4: The diaphragm is segmented and stamped to form a shaped diaphragm, and the shaped diaphragm is then post-processed.

[0010] As a further aspect of this invention: based on the diaphragm structure and size requirements, diaphragms with elongation at break, tensile strength, and yield strength that meet the die stamping requirements are selected. For each batch of diaphragms, 10-15 samples are randomly selected using a universal testing machine to test the elongation at break, tensile strength, and yield strength, ensuring that the deviation is controlled within ±1%. Unqualified batches are graded; those with slight deviations can be adapted to diaphragms with small arc radii, while those with severe deviations are directly rejected to prevent them from entering the production line.

[0011] As a further aspect of the present invention: a forming device for an ultra-thin diaphragm, wherein qualified diaphragms are conveyed through a conveying structure, the conveying structure being provided with a plurality of positioning elements for positioning the diaphragms, and a cleaning component being installed on the conveying structure for cleaning the diaphragms, wherein the conveying structure is a conveyor belt structure.

[0012] As a further aspect of the present invention: the cleaning component includes a support base detachably mounted on the upper end of the conveying structure and an ion air bar movably connected to the support base. The ion air bar can neutralize the static electricity on the membrane surface, prevent static electricity from adsorbing micro-dust, and blow away loose particles on the surface. A reinforcing block for controlling the raising and lowering of the ion air bar is movably mounted on the support base, and an electric telescopic rod for controlling the raising and lowering of the reinforcing block is provided inside the support base.

[0013] As a further aspect of the present invention: the cleaning assembly further includes an adsorption box disposed on the inner side of the conveying structure for cleaning impurities from the membrane, and adsorption tubes symmetrically disposed on the upper end of the adsorption box. The lower end of the adsorption box is close to the membrane. The upper end of the conveying structure is provided with a dust removal box communicating with the adsorption tubes. The dust removal box is disposed on the rear side of the support base. One end of the adsorption tube is provided with a first air guide hood, which is disposed inside the dust removal box. The outer side of the conveying structure is provided with a negative pressure generator that provides a slight negative pressure to the adsorption box via a reinforcing plate. The negative pressure generator is provided with a second air guide hood, which is disposed in the dust removal box and aligned with the first air guide hood.

[0014] As a further aspect of the present invention: the cleaning component further includes a lifting seat symmetrically arranged on the inner wall of the conveying structure and a lifting block movably arranged on the lifting seat to adjust the height of the adsorption box. The lifting seat is provided with a screw drive structure for controlling the lifting block to move up and down. The screw drive structure is provided with a connecting block connected to the lifting block. The top of the lifting seat is provided with a lifting motor for controlling the screw drive structure to work.

[0015] As a further aspect of the present invention: the cleaning assembly further includes a first protective box symmetrically arranged in the dust removal box and a first synchronous belt structure arranged in the first protective box. The first synchronous belt structure is provided with a dust removal mesh belt, the structure of which is similar to that of the first synchronous belt structure. The first air guide hood and the second air guide hood are respectively attached to both sides of the outer surface of the dust removal mesh belt. The bottom end of the dust removal box is connected to a first dust collection box connected to the conveying structure. The lower end of the first protective box extends into the first dust collection box. The connection between the dust removal box and the first dust collection box is symmetrically provided with mounting grooves. The mounting grooves are provided with mounting seats. The inner side of the mounting seat is movably provided with cleaning strips that are attached to the dust removal mesh belt. The two cleaning strips are respectively elastically attached to both sides of the outer surface of the dust removal mesh belt, so that the cleaning strips can clean the dust on the dust removal mesh belt.

[0016] As a further aspect of the present invention: the cleaning strip is provided with a plurality of rotating blocks rotatably connected to the mounting base; the rear side of the cleaning strip is provided with a support rod directionally connected to the mounting base; a support spring is sleeved on the support rod to elastically connect the cleaning strip and the mounting base; the first dust collection box is symmetrically provided with a cleaning scraper for cleaning dust on the dust removal mesh belt and a rotating roller aligned with the bottom side of the dust removal mesh belt; the rotating roller is provided with a cleaning wiper for cleaning the dust removal mesh belt via the mounting block; a rotating motor for controlling the rotation of the rotating roller is provided on one outer surface of the first dust collection box; a second dust collection box is movably provided on the other outer surface of the first dust collection box; the second dust collection box is used to collect the dust cleaned by the cleaning strip, cleaning scraper, and cleaning wiper.

[0017] As a further aspect of the present invention: In step S2, the coating assembly includes an oil tank detachably mounted on the upper end of the conveying structure and several oil pumps detachably mounted on the outer wall of the oil tank. The oil tank is located on the rear side of the dust removal box. The coating assembly also includes an mounting plate symmetrically mounted on the inner wall of the conveying structure and an oiling roller rotatably mounted on the mounting plate. The oiling roller can uniformly coat the film with stamping oil. An oil box is provided above the oiling roller. An oiling component for oiling the oiling roller is provided at the outlet of the oil box. Several oiling chambers are provided on the upper inner side of the oil box. An oiling pipe communicating with the oil pump is provided at the top of the oil box. The oil pump uniformly oils the oiling component through the oiling pipe and the oiling chamber, so that the oiling component uniformly oils the oiling roller.

[0018] As a further aspect of the present invention: the coating assembly further includes an oil scraper box disposed on the mounting plate and an oil scraper blade disposed at an inclination inside the oil scraper box to scrape oil off the coating roller. The lower side of the oil scraper box has a rectangular funnel structure, and the lower end of the oil scraper box is provided with an oil drain pipe to discharge the stamping oil collected in the oil scraper box.

[0019] As a further aspect of the present invention: the coating assembly further includes an oil filter belt inclinedly disposed in the oil scraper box and a second synchronous belt structure for controlling the movement of the oil filter belt. The outer surface of the oil scraper box is provided with a collection box. Both the oil scraper box and the collection box are provided with grooves for the passage of the second synchronous belt structure and the oil filter belt. The interior of the oil scraper box is provided with a second protective box for protecting the second synchronous belt structure. One end of the second protective box extends into the collection box. The lower interior of the collection box has a rectangular funnel structure. The lower end of the collection box is provided with a collection box for collecting impurities.

[0020] As a further aspect of the present invention: the coating assembly further includes a striking structure rotatably disposed inside the impurity collection box and striking the filter belt for cleaning. The striking structure consists of a striking roller and a striking strip disposed on the striking roller. The striking structure is rotatably disposed on the second protective box. A third synchronous belt structure is provided on the outside of the second synchronous belt structure to control the operation of the striking structure. The third synchronous belt structure is disposed inside the second protective box.

[0021] As a further aspect of the present invention: the inside of the impurity collection box is provided with a discharge port, which can collect impurities inside the impurity collection box; the upper end of the collection box is provided with a feed port that matches the discharge port; the inside of the impurity collection box is provided with symmetrically inclined sealing plates that fit and seal the discharge port; the bottom end of one sealing plate is provided with several limiting blocks, and the bottom end of another sealing plate is provided with a limiting groove that matches the limiting blocks; the limiting blocks and the limiting groove cooperate to make the two sealing plates fit together; the discharge port is provided with scraping conditions for cleaning the upper surface of the limiting blocks.

[0022] As a further aspect of the present invention: the upper end of the collection box is symmetrically provided with fixing strips that are detachably fixed to the collection box, and the bottom end of the collection box is symmetrically provided with fixing grooves that match the fixing strips. The coating assembly further includes a transmission assembly that drivesly connects the fixing strips to the sealing plate; wherein, the transmission assembly includes a first transmission groove formed on the fixing strip and a first transmission rack disposed in the first transmission groove, the transmission assembly further includes a first transmission gear meshing with the first transmission rack and a transmission strip disposed on the lower end face of the sealing plate, the first transmission gear is rotatably disposed inside the collection box, and the transmission strip moves inside the collection box. The bottom end face of the moving bar is provided with a second transmission groove. The transmission assembly also includes a second transmission rack disposed in the second transmission groove and a second transmission gear connected to the second transmission rack. A first bevel gear structure is coaxially disposed on the second transmission gear, and a first transmission rod connected to the first transmission gear is coaxially disposed on the first bevel gear structure. This allows the collection box to be installed on the collection box. The fixing bar drives the first transmission gear to rotate through the first transmission rack, thereby controlling the second transmission gear to move through the cooperation of the first bevel gear structure and the first transmission rod, so that the sealing plate opens the discharge port, allowing the collection box to communicate with the collection box.

[0023] As a further aspect of the present invention: the inner bottom surface of the collection box is symmetrically inclined and has a structure that is high in the middle and low on both sides. The coating assembly also includes a vibration assembly for uniformly distributing the impurities collected inside the collection box. The vibration assembly includes several striking blocks that are movably disposed inside the collection box and strike the inner bottom surface of the collection box, and striking rods that are vertically disposed at the lower end of the striking blocks. The outer wall of the striking rods is symmetrically provided with guide blocks. The inside of the collection box is symmetrically provided with several guide rods. The guide blocks are provided with guide holes that match the guide rods. The guide rods are symmetrically fitted with limiting springs that are connected to the guide blocks.

[0024] As a further aspect of the present invention: the bottom end of the striking rod extends out of the lower end face of the collection box, and the coating assembly further includes an extrusion member that is symmetrically arranged on the lower side of the collection box and performs extrusion, and an extrusion roller that controls the synchronous rotation of several extrusion members. The extrusion member includes an extrusion ring arranged on the extrusion roller and several extrusion blocks arranged in a circular array outside the extrusion ring. The extrusion roller drives the extrusion blocks to rotate through the extrusion ring, thereby controlling the striking rod to rise and fall inside the collection box.

[0025] As a further aspect of the present invention: the vibration assembly further includes a first gear coaxially connected to the extrusion roller and a second gear synchronously meshing with the two first gears respectively. The second gear and the third synchronous belt structure are both coaxially provided with a second bevel gear structure. A second transmission rod is coaxially provided between the two second bevel gear structures, so that the third synchronous belt structure controls the two extrusion rollers to rotate through the cooperation of the second bevel gear structure, the second transmission rod, the first gear and the second gear. This allows the striking rod and the striking block to beat and vibrate the impurities collected on the inner bottom surface of the collection box, preventing the impurities collected in the collection box from accumulating in the inner middle of the collection box.

[0026] As a further aspect of the present invention: the outer surfaces of the collection box and the debris collection box are each provided with a third protective box, which can effectively protect the third synchronous belt structure, the second bevel gear structure, the second transmission rod, the first gear and the second gear.

[0027] As a further aspect of the present invention: In step S3, the diaphragm coated with stamping oil is fixed onto the mold and a pre-punched center hole is made. The pre-punched center hole step is set before the arc forming to release the deformation stress during the arc forming. In addition, the cavity contour of the mold is perfectly matched with the continuous arc structure of the diaphragm, and the mold processing accuracy is ±0.003mm.

[0028] As a further aspect of the present invention: In step S4, the diaphragm after pre-punching the center hole is formed into an arc, then flanged, and then cut. The continuous arc structure is decomposed into at least 3 arc segments, and a 0.2-0.5mm radius is set in the transition area between adjacent arcs. A multi-stage blank holder die is used for punching. When post-processing the formed diaphragm, the initial holding pressure is 80-100MPa for 3-5 seconds, and then the pressure is gradually reduced to 50-60MPa for 2-3 seconds. The total holding time is extended by 50% compared with the traditional process. The formed diaphragm is annealed at 250-300℃ and cooled in the furnace after holding for 1-2 hours.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] (1) This invention uses Elgiloy® material to process ultra-thin diaphragms through a molding process and optimizes the molding sequence. Before arc forming, a center hole is pre-punched to release the deformation stress during arc forming, reducing cracking, deformation and wrinkling of the diaphragm during the molding process. The mold cavity contour is perfectly matched with the continuous arc structure of the diaphragm. Segmented stamping is used, and continuous pressure is maintained during stamping. The diaphragm is cleaned by a cleaning component to avoid cracking caused by particle compression. The diaphragm is evenly coated with a coating component after cleaning to improve the yield of the diaphragm structure and improve the use effect of the molding process.

[0031] (2) The present invention, through the use of the cleaning components and coating components, support base, ion air bar, adsorption box, adsorption tube, dust removal box, first air guide hood, negative pressure generator, second air guide hood, first protective box, first synchronous belt structure and dust removal mesh belt, can clean the diaphragm. Through the use of the cleaning strip, support rod, support spring, cleaning scraper, rotating roller, cleaning wipe and second dust collection box, the service life of the dust removal mesh belt can be extended and the cleaning dust can be collected and treated. Through the use of the oil tank, oil pump, mounting plate, oiling roller, oil box, oiling parts, oiling pipe, oil scraper box and oil scraper, the diaphragm can be evenly coated. The stamping oil is evenly coated and then filtered and collected through an oil drain pipe, an oil filter belt, a second synchronous belt structure, a collection box, a second protective box, a collection box, a knocking structure, and a third synchronous belt structure. Impurities on the oil filter belt are cleaned and then guided into the collection box. The fixed bar, the first transmission rack, the first transmission gear, the transmission bar, the second transmission rack, the second transmission gear, the first bevel gear structure, and the first transmission rod work together to make the collection box and the collection box work together, which facilitates the cleaning and maintenance of impurities in the collection box, extends the service life of the coating component, and improves the working effect of the cleaning component and the coating component.

[0032] (3) The present invention uses a vibration assembly, a striking block, a striking rod, a guide block, a guide rod and a limiting spring to disperse the impurities collected in the collection box and improve the storage effect of the internal space of the collection box. The extrusion roller, extrusion ring and extrusion block can control the raising and lowering of the striking rod. The first gear, the second gear, the second bevel gear structure and the second transmission rod are used in conjunction with the third synchronous belt structure to enable the second synchronous belt structure to control the raising and lowering of the striking rod without the need to add a drive structure, thus improving the use effect of the vibration assembly. Attached Figure Description

[0033] Figure 1 This is a flowchart of the method of the present invention.

[0034] Figure 2 This is a partial structural diagram of the cleaning component and the coating component in this invention.

[0035] Figure 3 This is a partial structural diagram of the cleaning component in this invention.

[0036] Figure 4 This is a cross-sectional view of the ash removal box and the first ash collection box in this invention.

[0037] Figure 5 This is a partial structural diagram of the first synchronous belt structure and the ash removal mesh belt in this invention.

[0038] Figure 6 In this invention Figure 5 Enlarged view of the structure at point A in the middle.

[0039] Figure 7 This is a partial structural diagram of the coating component in this invention.

[0040] Figure 8 This is a cross-sectional view of the oil scraper box and the debris collection box in this invention.

[0041] Figure 9 This is a partial structural diagram of the sealing plate and fixing strip in this invention.

[0042] Figure 10 This is a partial structural diagram of the oil filter belt and vibration assembly in this invention.

[0043] Figure 11 In this invention Figure 10 Enlarged view of the structure at point B.

[0044] Figure 12 In this invention Figure 10 Enlarged view of the structure at point C.

[0045] Figure 13 In this invention Figure 10 Enlarged view of the structure at point D.

[0046] Figure 14 This is a schematic diagram of the ultrathin membrane in this invention.

[0047] In the diagram: 1. Conveying structure; 2. Positioning component; 3. Support base; 4. Ionizing air bar; 5. Adsorption box; 6. Adsorption tube; 7. Ash removal box; 8. First air guide hood; 9. Negative pressure generator; 10. Second air guide hood; 11. First protective box; 12. First synchronous belt structure; 13. Ash removal mesh belt; 14. First ash collection box; 15. Mounting base; 16. Cleaning strip; 17. Support rod; 18. Support spring; 19. Cleaning scraper; 20. Rotating roller; 21. Cleaning wipe; 22. Rotary motor; 23. Second ash collection box; 24. Oil tank; 25. Oil pump; 26. Mounting plate; 27. Oiling roller; 28. Oil box; 29. ​​Oiling component; 30. Oiling pipe; 31. Oil scraper box; 32. Oil scraper blade; 33. Oil drain pipe; 34. Oil filter mesh belt; 35. Second synchronous belt structure; 36. Impurity collection box; 37. 38. Second protective box; 39. Collection box; 40. Striking structure; 41. Third synchronous belt structure; 42. Discharge port; 43. Sealing plate; 44. Limiting block; 45. Fixing strip; 46. First transmission rack; 47. First transmission gear; 48. Transmission bar; 49. Second transmission rack; 50. Second transmission gear; 51. First bevel gear structure; 52. First transmission rod; 53. Striking block; 54. Striking rod; 55. Guide block; 56. Guide rod; 57. Limiting spring; 58. Extrusion component; 59. Extrusion roller; 60. Extrusion ring; 61. Extrusion block; 62. First gear; 63. Second bevel gear structure; 64. Second transmission rod; 65. Third protective box; 66. Scraping condition; 67. Lifting seat; 68. Lifting block; 69. Screw transmission structure; 70. Lifting motor. Detailed Implementation

[0048] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0049] Example 1

[0050] Please see Figure 1 - Figure 10 This application provides a forming process for an ultrathin diaphragm, comprising the following specific steps:

[0051] S1: Clean the diaphragm using a cleaning component;

[0052] S2: Apply stamping oil evenly to the cleaned diaphragm using the coating component;

[0053] S3: Fix the film coated with stamping oil onto the mold and make a center hole to release the deformation stress during the molding process in advance;

[0054] S4: The diaphragm is segmented and stamped to form a shaped diaphragm, and the shaped diaphragm is then post-processed.

[0055] In step S1, according to the diaphragm structure size requirements, diaphragms with elongation at break, tensile strength, and yield strength that meet the die stamping requirements are selected. For each batch of diaphragms, 10-15 samples are randomly selected using a universal testing machine to test the elongation at break, tensile strength, and yield strength, ensuring the deviation is controlled within ±1%. Unqualified batches are graded; those with slight deviations can be adapted to diaphragms with small radius arcs, while those with severe deviations are directly rejected to prevent them from entering the production line. In this embodiment, Elgiloy® is preferably used. Elgiloy® is a nickel-molybdenum alloy and an excellent diaphragm material. Elgiloy® is suitable for applications with wide temperature fluctuations and long lifespans, and it is also compatible with various gases. It has a high hardness, reaching 500 HV.

[0056] In this invention, qualified diaphragms are conveyed through a conveying structure 1. The conveying structure 1 is provided with a plurality of positioning elements 2 for positioning the diaphragms. A cleaning component is installed on the conveying structure 1 and cleans the diaphragms. The conveying structure 1 is a conveyor belt structure.

[0057] In this invention, the cleaning component includes a support base 3 detachably mounted on the upper end of the conveying structure 1 and an ion air bar 4 movably connected to the support base 3. The ion air bar 4 can neutralize the static electricity on the membrane surface, prevent static electricity from adsorbing dust, and blow away loose particles on the surface. A reinforcing block is movably mounted on the support base 3 to control the lifting and lowering of the ion air bar 4. An electric telescopic rod is provided inside the support base 3 to control the lifting and lowering of the reinforcing block.

[0058] In this embodiment, the membrane is fixed to the positioning member 2, so that the conveying structure 1 conveys the membrane through the positioning member 2 and conveys the membrane to the area of ​​the cleaning component. The ion bar 4 is activated so that the ion bar 4 neutralizes the static electricity on the surface of the membrane, reduces the static-free adsorption of micro dust, and blows away the loose particles on the surface of the membrane.

[0059] The cleaning component of this invention also includes an adsorption box 5 disposed on the upper inner side of the conveying structure 1 to clean impurities from the membrane, and adsorption tubes 6 symmetrically disposed on the upper end of the adsorption box 5. The lower end of the adsorption box 5 is close to the membrane. The upper end of the conveying structure 1 is provided with a dust removal box 7 that communicates with the adsorption tubes 6. The dust removal box 7 is disposed on the rear side of the support base 3. One end of the adsorption tube 6 is provided with a first air guide hood 8, which is disposed inside the dust removal box 7. The outer side of the conveying structure 1 is provided with a negative pressure generator 9 that provides a slight negative pressure to the adsorption box 5 through a reinforcing plate. The negative pressure generator 9 is provided with a second air guide hood 10, which is disposed in the dust removal box 7 and aligned with the first air guide hood 8.

[0060] In this embodiment, when the membrane is delivered to the adsorption box 5, the negative pressure generator 9 is activated. The adsorption box 5 adsorbs the impurities on the membrane through the second air guide hood 10, the first air guide hood 8 and the adsorption tube 6, and the adsorbed impurities are introduced into the dust removal box 7 through the first air guide hood 8 for cleaning.

[0061] In step S2, the coating assembly of the present invention includes an oil tank 24 detachably mounted on the upper end of the conveying structure 1 and several oil pumps 25 detachably mounted on the outer wall of the oil tank 24. The oil tank 24 is located on the rear side of the dust removal box 7. The coating assembly also includes an mounting plate 26 symmetrically mounted on the inner wall of the conveying structure 1 and an oiling roller 27 rotatably mounted on the mounting plate 26. The oiling roller 27 can uniformly coat the film with stamping oil. A drive motor for controlling the rotation of the oiling roller 27 is provided on the outer side of the conveying structure 1. An oil box 28 is provided above the oiling roller 27. An oiling component 29 for oiling the oiling roller 27 is provided at the outlet of the oil box 28. The oiling component 29 can be made of porous polyurethane sponge. Several oiling chambers are provided on the upper inner side of the oil box 28. An oiling pipe 30 communicating with the oil pumps 25 is provided at the top of the oil box 28. The oil pumps 25 uniformly oil the oiling component 29 through the oiling pipes 30 and the oiling chambers, so that the oiling component 29 uniformly oils the oiling roller 27.

[0062] In this embodiment, the oil pump 25 is started, and the stamping oil is introduced into the oil box 28 through the oil pipe 30. The oil box 28 then introduces the stamping oil into the oiling component 29 through the oiling chamber, so that the oiling component 29 evenly adds stamping oil to the oiling roller 27. When the diaphragm is delivered to the bottom of the oiling roller 27, the drive motor is started to drive the oiling roller 27 to rotate, so that the oiling roller 27 evenly coats the diaphragm with stamping oil.

[0063] The coating assembly of the present invention also includes an oil scraper box 31 disposed on the mounting plate 26 and an oil scraper 32 disposed at an inclination inside the oil scraper box 31 to scrape oil off the oil coating roller 27. The lower side of the oil scraper box 31 has a rectangular funnel structure, and the lower end of the oil scraper box 31 is provided with an oil drain pipe 33 to discharge the stamping oil collected in the oil scraper box 31.

[0064] In this embodiment, when the oiling roller 27 rotates, if there is too much stamping oil on the oiling roller 27, the oil scraper 32 scrapes off the stamping oil on the oiling roller 27 and guides the scraped stamping oil into the oil scraper box 31, so that the oil scraper box 31 discharges and collects the excess stamping oil through the oil drain pipe 33.

[0065] In step S3, the diaphragm coated with stamping oil is fixed onto the mold and a pre-punched center hole is made. The pre-punching center hole step is set before the arc forming to release the deformation stress during the arc forming. In addition, the cavity contour of the mold is perfectly matched with the continuous arc structure of the diaphragm, and the mold processing accuracy is ±0.003mm.

[0066] In step S4, the diaphragm after pre-punching the center hole is formed into an arc, then flanged, and then cut. The continuous arc structure is decomposed into at least 3 arc segments, and a 0.2-0.5mm radius is set in the transition area between adjacent arcs. A multi-stage blank holder die is used for punching. When post-processing the formed diaphragm, the initial holding pressure is 80-100MPa for 3-5 seconds, and then the pressure is gradually reduced to 50-60MPa for 2-3 seconds. The total holding time is extended by 50% compared with the traditional process. The formed diaphragm is annealed at 250-300℃ and cooled in the furnace after holding for 1-2 hours.

[0067] Example 2

[0068] Based on Example 1, referring to Figure 2 - Figure 6 This is the second embodiment of the present invention. In this embodiment, the cleaning component further includes a lifting seat 67 symmetrically arranged on the inner wall of the conveying structure 1 and a lifting block 68 movably arranged on the lifting seat 67 to adjust the height of the adsorption box 5. Several lifting blocks 68 are symmetrically arranged on the outer surface of the adsorption box 5. The interior of the lifting seat 67 is provided with a screw drive structure 69 for controlling the lifting blocks 68 to move up and down. The screw drive structure 69 is provided with a connecting block connected to the lifting blocks 68. The top of the lifting seat 67 is provided with a lifting motor 70 for controlling the screw drive structure 69 to work.

[0069] In this embodiment, the lifting motor 70 is started, which drives the lead screw transmission structure 69 to work, so that the lead screw transmission structure 69 drives the lifting block 68 to move through the connecting block, and the lifting block 68 drives the adsorption box 5 to rise and fall, adjusting the height position of the adsorption box 5.

[0070] The cleaning component of this invention also includes a first protective box 11 symmetrically arranged in the dust removal box 7 and a first synchronous belt structure 12 arranged in the first protective box 11. The first synchronous belt structure 12 is provided with a dust removal mesh belt 13, and the structure of the dust removal mesh belt 13 is similar to that of the first synchronous belt structure 12. The first air guide hood 8 and the second air guide hood 10 are respectively attached to both sides of the outer surface of the dust removal mesh belt 13. The bottom end of the dust removal box 7 is connected to a first dust collection box 14 connected to the conveying structure 1. The lower end of the first protective box 11 extends into the first dust collection box 14. The connection between the dust removal box 7 and the first dust collection box 14 is symmetrically provided with mounting grooves. The mounting grooves are provided with mounting seats 15. The inner side of the mounting seat 15 is movably provided with cleaning strips 16 that are attached to the dust removal mesh belt 13. The two cleaning strips 16 are respectively elastically attached to both sides of the outer surface of the dust removal mesh belt 13, so that the cleaning strips 16 can clean the dust on the dust removal mesh belt 13.

[0071] In this embodiment, the first synchronous belt structure 12 is activated, which drives the dust removal mesh belt 13 to move inside the dust removal box 7. This allows the dust removal mesh belt 13 to suck in the dust from the first air guide hood 8 for filtration. As the dust removal mesh belt 13 moves downward, the cleaning strip 16 adheres to the outer wall of the dust removal mesh belt 13, allowing the dust removal mesh belt 13 to enter the first dust collection box 14 and reducing the amount of impurities inside the first dust collection box 14 entering the dust removal box 7. When the dust removal mesh belt 13 moves upward, the cleaning strip 16 scrapes the outer surface of the dust removal mesh belt 13 to clean impurities.

[0072] In this invention, the cleaning strip 16 is provided with several rotating blocks that are rotatably connected to the mounting base 15. The rear side of the cleaning strip 16 is provided with a support rod 17 that is guided and connected to the mounting base 15. A support spring 18 that elastically connects the cleaning strip 16 and the mounting base 15 is sleeved on the support rod 17. The first dust collection box 14 is symmetrically provided with a cleaning scraper 19 for cleaning dust on the dust removal mesh belt 13 and a rotating roller 20 that is aligned with the lowermost side of the dust removal mesh belt 13. The rotating roller 20 is provided with a cleaning wiper 21 for cleaning the dust removal mesh belt 13 through the mounting block. A rotary motor 22 for controlling the rotation of the rotating roller 20 is provided on one outer surface of the first dust collection box 14. A second dust collection box 23 is movably provided on the other outer surface of the first dust collection box 14. The second dust collection box 23 is used to collect the dust cleaned by the cleaning strip 16, the cleaning scraper 19 and the cleaning wiper 21.

[0073] In this embodiment, when the dust removal mesh belt 13 enters the first dust collection box 14, the cleaning scraper 19 cleans the dust removal mesh belt 13, and the cleaning wiping 21 cleans the dust removal mesh belt 13 again after cleaning. The rotary motor 22 is started, driving the rotary roller 20 to rotate, which in turn drives the cleaning wiping 21 to rotate. The position of the cleaning wiping 21 is adjusted and the cleaning wiping 21 is replaced. When the dust removal mesh belt 13 enters the dust removal box 7 from the first dust collection box 14, the support rod 17 and the support spring 18 provide elastic support for the cleaning strip 16, so that the cleaning strip 16 and the dust removal mesh belt 13 are cleaned by the cleaning strip 16.

[0074] Example 3

[0075] Based on Example 2, referring to Figure 7 - Figure 11 This is the third embodiment of the present invention. In this embodiment, the coating component further includes an oil filter belt 34 inclinedly disposed in the oil scraper box 31 and a second synchronous belt structure 35 for controlling the movement of the oil filter belt 34. The outer surface of the oil scraper box 31 is provided with a collection box 36. Both the oil scraper box 31 and the collection box 36 are provided with grooves for the passage of the second synchronous belt structure 35 and the oil filter belt 34. The interior of the oil scraper box 31 is provided with a second protective box 37 for protecting the second synchronous belt structure 35. One end of the second protective box 37 extends into the collection box 36. The lower side of the interior of the collection box 36 is a rectangular funnel structure. The lower end of the collection box 36 is provided with a collection box 38 for collecting impurities.

[0076] In this embodiment, the oil scraper box 31 collects excess stamping oil through the oil scraper 32, activates the second synchronous belt structure 35, drives the oil filter belt 34 to move, so that the oil filter belt 34 filters the stamping oil, collects the filtered stamping oil, and transports impurities to the impurity collection box 36 through the oil filter belt 34.

[0077] The coating assembly of the present invention also includes a striking structure 39, which is rotatably disposed inside the impurity collection box 36 and performs knocking cleaning on the oil filter belt 34. The striking structure 39 consists of a knocking roller and a knocking strip disposed on the knocking roller. The striking structure 39 is rotatably disposed on the second protective box 37. A third synchronous belt structure 40 is provided on the outside of the second synchronous belt structure 35 to control the operation of the striking structure 39. The third synchronous belt structure 40 is disposed inside the second protective box 37. A scraper for scraping and cleaning the oil filter belt 34 can be installed inside the impurity collection box 36.

[0078] In this embodiment, the second synchronous belt structure 35 is started to rotate, which drives the third synchronous belt structure 40 to work. The third synchronous belt structure 40 drives the knocking structure 39 to work, so that the knocking structure 39 knocks and cleans the oil filter screen belt 34, and guides the impurities on the oil filter screen belt 34 into the impurity collection box 36 for collection.

[0079] In this invention, the impurity collection box 36 has an internal discharge port 41. The inner bottom surface of the impurity collection box 36 is made smooth and coated with an anti-stick layer, allowing impurities to enter the discharge port 41. The discharge port 41 can collect the impurities inside the impurity collection box 36. The upper end of the collection box 38 has an inlet that matches the discharge port 41. The interior of the impurity collection box 36 is symmetrically provided with sealing plates 42 that fit and seal the discharge port 41. The bottom end of one sealing plate 42 is provided with several limiting blocks 43, and the bottom end of another sealing plate 42 is provided with a limiting groove that matches the limiting blocks 43. The limiting blocks 43 and the limiting groove cooperate to make the two sealing plates 42 fit together. The discharge port 41 is provided with a scraping condition 66 for cleaning the upper surface of the limiting blocks 43. The conveying structure 1 is provided with a through groove for disassembling or installing the collection box 38. The collection box 38 is detachably provided with a handle for easy fixing.

[0080] In this embodiment, impurities on the filter mesh belt 34 are introduced into the impurity collection box 36 and then into the discharge port 41. The collection box 38 is installed on the impurity collection box 36, which separates the two sealing plates 42 and the limiting block 43 and the limiting groove. The scraping condition 66 scrapes off the impurities on the upper end of the sealing plate 42 and introduces the impurities in the discharge port 41 into the collection box 38 through the feed port.

[0081] In this invention, the upper end of the collection box 38 is symmetrically provided with fixing strips 44 that are detachably fixed to the collection box 36, and the bottom end of the collection box 36 is symmetrically provided with fixing grooves that match the fixing strips 44. The coating assembly also includes a transmission assembly that drivesly connects the fixing strips 44 and the sealing plate 42. The transmission assembly includes a first transmission groove formed on the fixing strips 44 and a first transmission rack 45 disposed in the first transmission groove. The transmission assembly also includes a first transmission gear 46 that meshes with the first transmission rack 45 and a transmission strip 47 disposed on the lower end face of the sealing plate 42. The first transmission gear 46 is rotatably disposed inside the collection box 36, and the transmission strip 47 moves inside the collection box 36. The bottom end face of the transmission strip 47 is provided with a second transmission... The transmission assembly also includes a second transmission rack 48 disposed in the second transmission groove and a second transmission gear 49 connected to the second transmission rack 48. A first bevel gear structure 50 is coaxially disposed on the second transmission gear 49, and a first transmission rod 51 connected to the first transmission gear 46 is coaxially disposed on the first bevel gear structure 50. This allows the collection box 38 to be installed on the collection box 36. The fixing bar 44 drives the first transmission gear 46 to rotate through the first transmission rack 45, thereby controlling the second transmission gear 49 to move the second transmission rack 48 through the cooperation of the first bevel gear structure 50 and the first transmission rod 51. This causes the sealing plate 42 to open the discharge port 41, allowing the collection box 38 to communicate with the collection box 36.

[0082] In this embodiment, when the collection box 38 is installed on the impurity collection box 36, the fixing bar 44 moves in the fixing groove, causing the fixing bar 44 to drive the first transmission rack 45 to move, causing the first transmission rack 45 to mesh with the first transmission gear 46, causing the first transmission gear 46 to drive the first bevel gear structure 50 to rotate, causing the first bevel gear structure 50 to drive another first bevel gear structure 50 to rotate via the first transmission rod 51, causing the first bevel gear structure 50 to drive the second transmission gear 49 to rotate, causing the second transmission gear 49 to drive the second transmission rack 48 to move, causing the second transmission rack 48 to drive the transmission bar 47 to move, causing the transmission bar 47 to drive the sealing plate 42 to move, causing the two sealing plates 42 to open the discharge port 41, making the collection box 38 connected to the impurity collection box 36, and the collection box 38 collects impurities.

[0083] Example 4

[0084] Based on Example 3, referring to Figure 10 - Figure 14This is the fourth embodiment of the present invention. In this embodiment, the inner bottom surface of the collection box 38 is symmetrically inclined and has a structure that is high in the middle and low on both sides. The coating assembly also includes a vibration assembly for uniformly distributing the impurities collected inside the collection box 38. The vibration assembly includes several striking blocks 52 that are movably disposed inside the collection box 38 and strike the inner bottom surface of the collection box 38, and striking rods 53 that are vertically disposed at the lower end of the striking blocks 52. The outer wall of the striking rods 53 is symmetrically provided with guide blocks 54. The inside of the collection box 38 is symmetrically provided with several guide rods 55. The guide blocks 54 are provided with guide holes that match the guide rods 55. The guide rods 55 are symmetrically sleeved with limiting springs 56 that are connected to the guide blocks 54.

[0085] In this embodiment, when the collection box 38 collects impurities, the collected impurities accumulate in the middle of the inner side of the collection box 38. The striking rod 53 is controlled to move upward, causing the striking rod 53 to drive the striking block 52 to move upward, and the striking block 52 is controlled to strike the inner bottom surface of the collection box 38 to disperse the impurities. When the striking rod 53 moves, it causes the guide block 54 to move on the guide rod 55, and the guide block 54 controls the limit spring 56 to extend and retract.

[0086] In this invention, the bottom end of the striking rod 53 extends out of the lower end face of the collection box 38. The coating assembly also includes an extrusion member 57 that is symmetrically arranged on the lower side of the collection box 38 and performs extrusion, and an extrusion roller 58 that controls the synchronous rotation of several extrusion members 57. The extrusion member 57 includes an extrusion ring 59 arranged on the extrusion roller 58 and several extrusion blocks 60 arranged in a circular array outside the extrusion ring 59. The extrusion roller 58 drives the extrusion blocks 60 to rotate through the extrusion ring 59, thereby controlling the striking rod 53 to rise and fall inside the collection box 38.

[0087] In this embodiment, when the extrusion roller 58 rotates, it drives the extrusion ring 59 to rotate, which in turn drives the extrusion block 60 to rotate. When the extrusion block 60 rotates to the striking rod 53, it controls the striking rod 53 to move upward.

[0088] In this invention, the vibration assembly also includes a first gear 61 coaxially connected to the extrusion roller 58 and a second gear 62 synchronously meshing with the two first gears 61 respectively. The second gear 62 and the third synchronous belt structure 40 are both coaxially provided with second bevel gear structures 63. The third synchronous belt structure 40 is connected to the second bevel gear structures 63 through a connecting rod. A second transmission rod 64 is coaxially provided between the two second bevel gear structures 63, so that the third synchronous belt structure 40 controls the two extrusion rollers 58 to rotate through the cooperation of the second bevel gear structures 63, the second transmission rod 64, the first gear 61 and the second gear 62. This allows the striking rod 53 and the striking block 52 to beat and vibrate the impurities collected on the inner bottom surface of the collection box 38, preventing the impurities collected in the collection box 38 from accumulating in the inner middle of the collection box 38.

[0089] In this embodiment, when the third synchronous belt structure 40 is working, it drives the second bevel gear structure 63 to rotate. The second bevel gear structure 63 drives another second bevel gear structure 63 to rotate through the second transmission rod 64. The second bevel gear structure 63 drives the second gear 62 to rotate. The second gear 62 drives the two first gears 61 to rotate. When the first gear 61 drives the extrusion roller 58 to rotate, the extrusion roller 58 drives the extrusion member 57 to control the striking rod 53 to rise and fall.

[0090] In this invention, the outer surfaces of the collection box 38 and the debris collection box 36 are provided with a third protective box 65, which can effectively protect the third synchronous belt structure 40, the second bevel gear structure 63, the second transmission rod 64, the first gear 61 and the second gear 62.

[0091] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. A forming apparatus for an ultrathin diaphragm, characterized in that, Includes a cleaning component, the cleaning component comprising: The support base (3) is vertically arranged at the upper end of the conveying structure (1); Ionizing air bar (4) is movably set inside the support base (3) and performs preliminary cleaning of the membrane; The adsorption box (5) is movably positioned above the membrane and cleans the membrane through the adsorption tube (6) and the negative pressure generator (9); The dust removal box (7) is set between the adsorption tube (6) and the negative pressure generator (9) to collect the adsorbed dust.

2. The forming apparatus for an ultrathin diaphragm according to claim 1, characterized in that, The bottom of the ash removal box (7) is provided with a first ash collection box (14): The ash removal box (7) is provided with a first protective box (11) that extends into the first ash collection box (14); The first protective box (11) has a first synchronous belt structure (12) inside; A dust removal mesh belt (13) is provided between the two first synchronous belt structures (12); The ash removal mesh belt (13) is provided with a first air guide hood (8) and a second air guide hood (10) on both sides, which are connected to the negative pressure generator (9) via an adsorption pipe (6).

3. The forming apparatus for an ultrathin diaphragm according to claim 2, characterized in that, The ash removal box (7) and the first ash collection box (14) are symmetrically provided with mounting bases (15): The mounting base (15) is rotatably provided with a cleaning strip (16) that fits into the dust removal mesh belt (13); The cleaning strip (16) is elastically connected to the mounting base (15) via a support rod (17) and a support spring (18); The first ash collection box (14) is equipped with a cleaning scraper (19) and a cleaning wipe (21) for cleaning the ash removal mesh belt (13). Several sets of cleaning wipes (21) are rotatably mounted on the first dust collection box (14) via rotating rollers (20); The first dust collection box (14) is provided with a second dust collection box (23) for collecting dust.

4. The forming apparatus for an ultrathin diaphragm according to claim 3, characterized in that, In step S2, the coating assembly includes: A refueling tank (24) is located at the upper end of the conveying structure (1) and is equipped with a refueling pump (25) for refueling. The oiling roller (27) is used to uniformly coat the diaphragm with stamping oil, and a scraper (32) is provided on one side. The oiling box (28) is connected to the oiling pump (25) via the oiling pipe (30) and is equipped with an oiling component (29) for oiling the oiling roller (27).

5. The forming apparatus for an ultrathin diaphragm according to claim 4, characterized in that, The conveying structure (1) is provided with an oil scraper box (31) for fixing the oil scraper (32); The oil scraper box (31) is provided with an inclined oil filter belt (34); The bottom end of the oil scraper box (31) is provided with an oil drain pipe (33). The outer side of the oil scraper box (31) is connected to the miscellaneous collection box (36); The oil scraper box (31) and the debris collection box (36) are each provided with a second protective box (37); The second protective box (37) is provided with a second synchronous belt structure (35) for moving the oil filter mesh belt (34).

6. The forming apparatus for an ultrathin diaphragm according to claim 5, characterized in that, The inside of the collection box (36) is provided with a knocking structure (39) for knocking and cleaning the oil filter belt (34). The outer side of the second synchronous belt structure (35) is provided with a third synchronous belt structure (40) for controlling the knocking structure (39) to work. The inside of the collection box (36) is provided with a discharge port (41); The lower end of the impurity collection box (36) is provided with a collection box (38) for collecting impurities. The inside of the collection box (36) is provided with a sealing plate (42) that fits and seals the discharge port (41). The sealing plate (42) is connected to the adjacent sealing plate (42) by a limiting block (43).

7. The forming apparatus for an ultrathin diaphragm according to claim 6, characterized in that, The upper end of the collection box (38) is provided with a fixing strip (44) that is connected to the miscellaneous collection box (36). The fixing bar (44) is provided with a first transmission rack (45); The inside of the collection box (36) is provided with a first transmission gear (46) that meshes with the first transmission rack (45). The lower end of the sealing plate (42) is provided with a transmission bar (47). The transmission bar (47) is provided with a second transmission rack (48). The inside of the collection box (36) is provided with a second transmission gear (49) that controls the movement of the second transmission rack (48). The second transmission gear (49) is coaxially provided with a first bevel gear structure (50), and the first bevel gear structure (50) is coaxially provided with a first transmission rod (51) connected to the first transmission gear (46). The inner bottom surface of the collection box (38) has a structure that is high in the middle and low on both sides; The inside of the collection box (38) is provided with a striking block (52) and a striking rod (53) for striking the inner bottom surface of the collection box (38). The striking rod (53) is connected to the guide rod (55) via the guide block (54); The guide rod (55) is symmetrically fitted with limiting springs (56) that are connected to the guide block (54). The bottom end of the striking rod (53) extends out of the lower end face of the collection box (38); The collection box (38) is provided with a pressing component (57) on the lower side for raising and lowering the control knocking rod (53).

8. The forming apparatus for an ultrathin diaphragm according to claim 7, characterized in that, The collecting box (38) has a pressing roller (58) on the lower side that controls several pressing parts (57) to rotate synchronously. One end of the extrusion roller (58) is coaxially provided with a first gear (61); A second gear (62) is synchronously engaged between the two first gears (61). The second gear (62) and the third synchronous belt structure (40) are both coaxially provided with a second bevel gear structure (63); A second transmission rod (64) is coaxially provided between the two second bevel gear structures (63). The third synchronous belt structure (40) controls the rotation of two squeezing rollers (58) through the cooperation of the second bevel gear structure (63), the second transmission rod (64), the first gear (61) and the second gear (62), so that the striking rod (53) and the striking block (52) work together to strike and vibrate the impurities collected on the inner bottom surface of the collection box (38), thereby dispersing the impurities accumulated inside the collection box (38).

9. A forming process for an ultrathin diaphragm, comprising a forming apparatus for an ultrathin diaphragm according to any one of claims 1-8, characterized in that, The specific steps include the following: S1: Clean the diaphragm using a cleaning component; S2: Apply stamping oil evenly to the cleaned diaphragm using the coating component; S3: Fix the film coated with stamping oil onto the mold and make a center hole to release the deformation stress during the molding process in advance; S4: The diaphragm is segmented and stamped to form a shaped diaphragm, and the shaped diaphragm is then post-processed.

10. The forming process of an ultrathin diaphragm according to claim 9, characterized in that, In step S4, the diaphragm after the pre-punched center hole is formed into an arc, then the edge is turned over, and then it is cut. The continuous arc structure is decomposed into at least 3 arc segments, and a 0.2-0.5mm radius is set in the transition area between adjacent arc segments. The stamping is carried out using a multi-stage blank holder die. When post-processing the formed film, the initial holding pressure is 80-100MPa, maintained for 3-5 seconds, and then the pressure is gradually reduced to 50-60MPa and maintained for 2-3 seconds. The total holding time is extended by 50% compared with the traditional process. The molded film is annealed at 250-300℃ and held at that temperature for 1-2 hours before being cooled in the furnace.

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