CN112475202B

CN112475202B - Production system and production method of disposable cylinder valve for steel cylinder

Info

Publication number: CN112475202B
Application number: CN202011398417.XA
Authority: CN
Inventors: 林建华; 魏春华; 姜强; 梁凯; 丰云红
Original assignee: Zhejiang Jucheng Steel Cylinder Co ltd
Current assignee: Zhejiang Jucheng Steel Cylinder Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2022-09-23
Anticipated expiration: 2040-12-02
Also published as: CN112475202A

Abstract

The invention discloses a production system of a disposable cylinder valve for a steel cylinder, which has the characteristics of high production efficiency and low production cost, and the key point of the technical scheme is the production system of the disposable cylinder valve for the steel cylinder, and the production system is characterized in that: the production system comprises a feeding conveying station, a heating station, a pre-forging station, a multidirectional hydraulic forging station, a material moving manipulator and a blanking frame, wherein the feeding conveying station, the heating station, the pre-forging station, the multidirectional hydraulic forging station and the blanking frame are sequentially arranged in a circumferential direction, the material moving manipulator is positioned in the center of the production system and used for moving heated blanks on a discharging end of the heating station into the pre-forging station, moving pre-forged parts on the pre-forging station into the multidirectional hydraulic forging station and moving the forged parts on the multidirectional hydraulic forging station to the blanking frame.

Description

Production system and production method of disposable cylinder valve for steel cylinder

Technical Field

The invention belongs to the technical field of cylinder valve production, and particularly relates to a production system of a disposable cylinder valve for a steel cylinder.

Background

At present, in the manufacturing process of a cylinder valve, a plurality of processes such as heating, pre-forging, finish forging, drilling, subsequent finish machining and the like are required, the processes are independent, the forming efficiency is low, the inner hole structure on the existing cylinder valve is drilled after finish forging, the cutting allowance is large, and the machining efficiency is low, so that new related manufacturing equipment is required to meet the manufacturing requirement of a valve body, the labor intensity is reduced, and the working efficiency is improved; therefore, the design adopts multidirectional hydraulic forging equipment, but the multidirectional hydraulic forging equipment belongs to a hot forging die, and the traditional die structure has the problems of difficult demoulding, easy abrasion of the die and the like.

Disclosure of Invention

The invention aims to provide a production system of a disposable cylinder valve for a steel cylinder, which has the characteristics of high production efficiency and low production cost.

The purpose of the invention is realized as follows: the utility model provides a production system of disposable cylinder valve for steel bottle which characterized in that: the production system comprises a feeding conveying station, a heating station, a pre-forging station, a multidirectional hydraulic forging station, a material moving manipulator and a blanking frame, wherein the feeding conveying station, the heating station, the pre-forging station, the multidirectional hydraulic forging station and the blanking frame are sequentially arranged in a circumferential direction, the material moving manipulator is located in the center of the production system and used for moving heated blanks on the discharging end of the heating station into the pre-forging station, moving pre-forged parts on the pre-forging station into the multidirectional hydraulic forging station and moving the forged parts on the multidirectional hydraulic forging station to the blanking frame.

The invention is further configured to: the material loading conveying station comprises a material loading frame and a plurality of conveying rails, the heating station comprises a heating furnace, the conveying rails penetrate through the heating furnace, a material moving manipulator is used for grabbing a material blank from the material loading frame and placing the material blank on the head end of each conveying rail in sequence, a material conveying cylinder is arranged on the head end of each conveying rail, an ejection rod which moves back and forth is arranged on the telescopic end of each material conveying cylinder, the ejection rod is used for ejecting the material blank located on the conveying rails forwards to convey the material blank, and a material blocking assembly is arranged at the tail end of each conveying rail.

The invention is further configured to: keep off the material subassembly and include U type mount, ball, pivot and spring, on U type mount was fixed in delivery track's end, and the U type open end of U type mount just to delivery track's direction of delivery, the ball cover is established in the pivot and is fixed in on U type mount through the pivot activity, the spring is fixed in on U type mount and contradicts with the ball axial.

The invention is further configured to: the multidirectional hydraulic forging station comprises a rack, an upper die, a lower die and a top hydraulic cylinder, wherein the top hydraulic cylinder is fixed on the rack and used for driving the lower die to lift, a plurality of multidirectional stamping rods are arranged between the upper die and the lower die, a stamping cylinder used for driving the stamping rods to stretch and retract is also arranged on the rack, the multidirectional hydraulic forging station further comprises a hydraulic oil supply system, the top hydraulic cylinder and the stamping cylinder are controlled by the hydraulic oil supply system, the top hydraulic cylinder comprises a first rod cavity and a first non-rod cavity, the stamping cylinder comprises a second non-rod cavity and a second rod cavity, and the hydraulic oil supply system comprises a first oil way connected with the first rod cavity, a second oil way connected with the first rod cavity, a third oil way connected with the second non-rod cavity and a fourth oil way connected with the second rod cavity;

the self-lubricating die core is arranged on each of the upper die and the lower die, die cavities of the upper die and the lower die are arranged on the self-lubricating die core, the self-lubricating die core is formed by sintering iron-based powder in a powder metallurgy mode, first oil storage cavities are arranged between the upper die and the self-lubricating die core and between the lower die and the self-lubricating die core, first oil supply holes communicated with the first oil storage cavities are also formed in the upper die and the lower die, and a first oil supply cylinder for supplying oil to the self-lubricating die core is connected to a first oil path;

the second oil storage cavity is arranged in the plunger rod, the oil guide hole is formed in the front end of the plunger rod and is used for communicating the second oil storage cavity with the outer wall of the plunger rod, the second oil supply hole communicated with the second oil storage cavity is formed in the rear end of the plunger rod, and the third oil path is connected with a second oil supply cylinder for supplying oil to the oil storage cavity.

The invention is further configured to: the first oil supply cylinder and the second oil supply cylinder respectively comprise a front cavity, a transition cavity and a rear cavity which are sequentially communicated, a first piston is arranged in the front cavity, the front cavity is divided into a pressure sensing cavity and a buffer cavity by the first piston, a second piston is arranged in the rear cavity, the rear cavity is divided into a pressure regulating cavity and an oil supply cavity by the second piston, the buffer cavity, the transition cavity and the pressure regulating cavity are sequentially communicated, a piston rod arranged in the buffer cavity is arranged on the first piston and extends into the transition cavity, a space is reserved between the piston rod and the second piston, the piston rod is provided with a sealing ring for separating the communication between the buffer cavity and the transition cavity, a first reset spring axially abutted against the first piston is arranged in the buffer cavity, a pressure discharge hole is arranged in the buffer cavity, the pressure discharge hole is connected with an oil supply tank, a second reset spring axially abutted against the second piston is arranged on the oil supply cavity, an oil inlet and an oil outlet are further arranged on the oil supply cavity, the oil inlet is connected with a lubricating oil supply tank, an oil outlet on the first oil supply cylinder is communicated with the first oil supply hole, an oil outlet on the second oil supply cylinder is communicated with the second oil supply hole, the pressure sensing cavity is provided with a connector, the connector on the first oil supply cylinder is communicated with the first oil path, and the connector on the second oil supply cylinder is communicated with the second oil path.

The invention is further configured to: a first one-way valve for limiting backflow of lubricating oil from the oil inlet to the lubricating oil supply tank is arranged between the oil inlet and the lubricating oil supply tank, a second one-way valve for limiting backflow of lubricating oil from the first oil supply hole to the oil outlet is arranged between the oil outlet on the first oil supply cylinder and the first oil supply hole, and a third one-way valve for limiting backflow of lubricating oil from the second oil supply hole to the oil outlet is arranged between the oil outlet on the second oil supply cylinder and the second oil supply hole.

The invention is further configured to: the transition cavity is provided with an air inlet and an air outlet, the air inlet is provided with an air inlet check valve, and the air outlet is provided with an air outlet check valve.

The invention is further configured to: the buffer cavity is internally provided with a first axial boss for limiting the maximum compression amount of the first piston, and the oil supply cavity is internally provided with a second axial boss for limiting the maximum compression amount of the second piston.

The invention is further configured to: the material moving manipulator is a multi-axis robot, the material moving manipulators are multiple, and each material moving manipulator is respectively used for moving materials between a heating station and a pre-forging station, moving materials between the heating station and the pre-forging station, moving materials between the pre-forging station and a multi-direction hydraulic forging station, and moving materials between the multi-direction hydraulic forging station and a blanking frame.

A production method of a production system of a disposable cylinder valve for a steel cylinder comprises the following steps:

l1, feeding: sequentially placing the blanks on each conveying track through a material moving manipulator;

l2, heating: the feeding cylinders on each conveying rail sequentially push the blanks to advance, the blanks are heated at high temperature after entering the heating furnace, and the heated blanks are sequentially pushed into the tail ends of the conveying rails;

l3, preforging; grabbing and moving the blank on the tail end of the conveying rail to a pre-forging die of a pre-forging station through a material moving manipulator, and pre-forging and forming;

l4, multidirectional forging: after the pre-forging is finished, grabbing and moving the blank formed by the pre-forging to a lower die of a multidirectional hydraulic forging station through a material moving manipulator to realize multidirectional forging;

l5, blanking: and grabbing and moving the workpiece to a blanking frame after the multidirectional forging is completed.

Through adopting above-mentioned technical scheme, have degree of automation height, characteristics that production efficiency is high, and through multidirectional hydraulic forging station, can realize directly realizing punching a hole at forged process, follow-up machining allowance is few, and the shaping is effectual, and through the improvement to hydraulic oil feeding system, makes it can independently control lubricating oil and realize lubricating, has improved the life of mould.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the multi-directional hydraulic forging station of the present invention;

FIG. 3 is a schematic view of a connection structure between a first oil supply cylinder and upper and lower molds according to the present invention;

FIG. 4 is a schematic view showing a connection structure between a second oil supply cylinder and upper and lower molds according to the present invention;

fig. 5 is a schematic structural view of the material blocking assembly in the invention;

the reference numbers in the figures are: 1. a feeding frame; 2. heating furnace; 3. a preforging station; 4. a multidirectional hydraulic forging station; 5. a material moving manipulator; 6. a blanking frame; 7. a conveying track; 8. a feeding cylinder; 9. a material ejecting rod; 10. the material blocking component; 11. a U-shaped fixing frame; 12. a ball bearing; 13. a rotating shaft; 14. a spring; 15. an upper die; 16. a lower die; 17. a hydraulic oil supply system; 19. a first rod chamber; 20. a first rod-less chamber; 21. a second rodless cavity; 22. a second rod chamber; 23. a first oil passage; 24. a second oil passage; 25. a third oil passage; 26. a fourth oil passage; 27. a self-lubricating mold core; 28. a first oil storage chamber; 29. a first supply cylinder; 30. a second oil storage chamber; 31. an oil guide hole; 32. a second oil supply hole; 33. a second supply cylinder; 34. a front cavity; 35. a transition chamber; 36. a rear cavity; 37. a first piston; 38. a second piston; 39. a piston rod; 40. a first return spring; 41. pressure discharge holes; 42. an oil inlet of a lubricating oil supply tank; 43. a second return spring; 44. an oil inlet; 45. an oil outlet; 46. a connecting port; 47. an air inlet check valve; 48. an exhaust check valve; 49. a first axial boss; 50. a second shaft-like boss.

Detailed Description

The invention is further described in the following with specific embodiments in conjunction with the accompanying drawings, see fig. 1-5:

the utility model provides a production system of disposable bottle valve for steel bottle, production system includes material loading transport station, the heating station, preforging station 3, multidirectional hydraulic forging station 4, material moving manipulator 5 and unloading frame 6, material loading transport station, the heating station, preforging station 3, multidirectional hydraulic forging station 4 and unloading frame 6 are the hoop setting in proper order, material moving manipulator 5 is located production system's center, and material moving manipulator 5 is used for with heating the postheating billet immigration to preforging station 3 on the station discharge end, with the preforging spare immigration that preforging was accomplished on preforging station 3 to multidirectional hydraulic forging station 4, move the work piece that forges and accomplish on multidirectional hydraulic forging station 4 to unloading frame 6.

The feeding and conveying station is mainly used for feeding and conveying blanks, the heating station is used for heating the blanks, the pre-forging station 3 is used for pre-forging and forming cylindrical blanks, the multidirectional hydraulic forging station 4 is used for realizing finish forging, in addition, the inner holes at all ends are subjected to punch forming in the forging process, the blanking frame 6 is used for blanking formed workpieces, and the material moving manipulator 5 is used for conveying the blanks among all stations; each station is the annular setting, and production system area is little, and can realize automatic material transport that moves, degree of automation is high, and machining efficiency is high.

The material loading conveying station comprises a material loading frame 1 and a plurality of conveying rails 7, the heating station comprises a heating furnace 2, the conveying rails 7 penetrate through the heating furnace 2, a material moving manipulator 5 is used for grabbing blanks from the material loading frame 1 and placing the blanks on the head end of each conveying rail 7 in sequence, a material conveying cylinder 8 is arranged on the head end of each conveying rail 7, a material ejecting rod 9 of reciprocating motion is arranged on the telescopic end of the material conveying cylinder 8, the material ejecting rod 9 is used for ejecting the blanks located on the conveying rails 7 forwards to convey, and a material blocking assembly 10 is arranged at the tail end of each conveying rail 7.

The conveying rails 7 are of a fixed structure and can be arranged on the fixed frame, the middle parts of the conveying rails penetrate through the heating furnace 2, the material conveying cylinders 8 on the conveying rails 7 move in sequence and are alternatively ejected out, the blanks on the conveying rails 7 move forwards in sequence, the forward movement length is the length of one blank, and when the blank moves into the heating furnace 2, heating is realized; by increasing the number of the conveying rails 7, the retention time of the blanks in the heating furnace 2 in each conveying rail 7 can be increased, so that the actual number of the conveying rails 7 can be adjusted according to the actual situation; the material blocking assembly 10 can prevent the heated material blank from falling from the end of the conveying track 7.

Keep off material subassembly 10 including U type mount 11, ball 12, pivot 13 and spring, on U type mount 11 was fixed in delivery track 7's end, and the U type open end of U type mount 11 just is the direction of delivery track 7, ball 12 cover is established in pivot 13 and is fixed in U type mount 11 through pivot 13 activity on, the spring is fixed in on the U type mount 11 and contradicts with ball 12 axial.

The U-shaped fixing frame 11 can be fixed on the tail end of the conveying track 7 in a screw manner and the like, and a strip-shaped hole for fixing the rotating shaft 13 is formed in the U-shaped fixing frame 11, so that the rotating shaft 13 can reciprocate in the conveying direction of the conveying track 7 and is abutted against the ball 12 through a spring, and the rotating shaft 13 can be stably limited in the strip-shaped hole; when the material embryo advances to the end of delivery track 7 promptly, can contradict with ball 12 to promote pivot 13 and slightly move backward in the bar is downthehole, the compression of spring part, but through the setting of spring and ball 12, when getting the material, the extrusion resistance at material embryo both ends is less relatively, because the spring still has the compression allowance, and ball 12 is the point contact with the material embryo, and can also rotate, consequently can avoid the stock to block the material at the end of delivery track 7.

The multidirectional hydraulic forging station 4 comprises a rack, an upper die 15, a lower die 16 and a top hydraulic cylinder, the top hydraulic cylinder is fixed on the rack and used for driving the lower die 16 to lift, a plurality of multidirectional punching rods are arranged between the upper die 15 and the lower die 16, a punching cylinder used for driving the punching rods to stretch and retract to realize punching is further arranged on the rack, the multidirectional hydraulic forging station 4 further comprises a hydraulic oil supply system 17, the top hydraulic cylinder and the punching cylinder are controlled by the hydraulic oil supply system 17, the top hydraulic cylinder comprises a first rod cavity 19 and a first non-rod cavity 20, the punching cylinder comprises a second non-rod cavity 21 and a second rod cavity 22, the hydraulic oil supply system 17 includes a first oil passage 23 for connection with the first rodless chamber 20, a second oil passage 24 for connection with the first rod chamber 19, a third oil passage 25 for connection with the second rodless chamber 21, and a fourth oil passage 26 for connection with the second rod chamber 22;

through the multi-directional punch rod structure, multiple inner holes of the cylinder valve in the forming process can be simultaneously punched and formed, the forming efficiency is high, raw materials are saved, and the allowance of subsequent drilling and cutting is reduced; the hydraulic oil supply system 17 is mainly used for supplying oil and driving the top hydraulic cylinder and the pistons in the respective ram cylinders to reciprocate.

The die comprises an upper die 15, a lower die 16, a self-lubricating die core 27, an iron-based powder, a first oil storage cavity 28, a first oil supply hole communicated with the first oil storage cavity 28, a first oil supply cylinder 29 and a first oil supply device, wherein the self-lubricating die core 27 is arranged on the upper die 15 and the lower die 16, the die cavities of the upper die 15 and the lower die 16 are arranged on the self-lubricating die core 27, the self-lubricating die core 27 is formed by sintering iron-based powder in a powder metallurgy mode, the first oil storage cavity 28 is arranged between the upper die 15 and the self-lubricating die core 27 and between the lower die 16 and the self-lubricating die core 27, and the first oil path 23 is connected with the first oil supply cylinder 29 for supplying oil to the self-lubricating die core 27;

the self-lubricating mold core 27 is embedded in the upper mold 15 or the lower mold 16 in a bonding mode and the like, and the first oil storage cavity 28 can be of an annular structure to ensure the supporting strength between the upper mold 16 and the lower mold 16 and the self-lubricating mold core 27; because the self-lubricating mold core 27 is formed by powder metallurgy sintering, micro pores can be formed, so that the self-lubricating mold core 27 can absorb or overflow oil integrally; the first oil supply cylinder 29 is connected with the first oil supply hole and supplies oil to the first oil storage cavity 28 in a reciprocating manner, namely, oil supply to the self-lubricating mold core 27 is realized.

A second oil storage cavity 30 is arranged in the plunger rod, an oil guide hole 31 is arranged at the front end of the plunger rod, the oil guide hole 31 is used for communicating the second oil storage cavity 30 with the outer wall of the plunger rod, a second oil supply hole 32 communicated with the second oil storage cavity 30 is arranged at the rear end of the plunger rod, and a second oil supply cylinder 33 for supplying oil to the second oil storage cavity 30 is connected to the third oil path 25.

Similarly, the second oil supply cylinder 33 is connected with the second oil supply hole 32 and supplies oil to the second oil outlet cavity in a reciprocating manner, and the lubricating oil in the second oil storage cavity 30 can overflow along the oil guide hole 31 to lubricate the surface of the plunger.

The first oil supply cylinder 29 and the second oil supply cylinder 33 respectively comprise a front cavity 34, a transition cavity 35 and a rear cavity 36 which are sequentially communicated, a first piston 37 is arranged in the front cavity 34, the front cavity 34 is divided into a pressure sensing cavity and a buffer cavity by the first piston 37, a second piston 38 is arranged in the rear cavity 36, the rear cavity 36 is divided into a pressure regulating cavity and an oil supply cavity by the second piston 38, the buffer cavity, the transition cavity 35 and the pressure regulating cavity are sequentially communicated, a piston rod 39 arranged in the buffer cavity is arranged on the first piston 37, the piston rod 39 extends into the transition cavity 35, a space is reserved between the piston rod 39 and the second piston 38, a sealing ring used for separating the buffer cavity from the transition cavity 35 is arranged on the piston rod 39, a first return spring 40 axially abutted against the first piston 37 is arranged in the buffer cavity, a pressure discharge hole 41 is arranged in the buffer cavity, a hydraulic oil tank is connected to the pressure discharge hole 41, a second return spring 43 axially abutted against the second piston 38 is arranged on the oil supply cavity, the oil supply cavity is further provided with an oil inlet 44 and an oil outlet 45, the oil inlet 44 is connected with a lubricating oil supply tank, the oil outlet 45 on the first oil supply cylinder 29 is used for being communicated with the first oil supply hole, the oil outlet 45 on the second oil supply cylinder 33 is used for being communicated with the second oil supply hole 32, the pressure sensing cavity is provided with a connecting port 46, the connecting port 46 on the first oil supply cylinder 29 is communicated with the first oil path 23, and the connecting port 46 on the second oil supply cylinder 33 is communicated with the third oil path 25.

The hydraulic oil supply system 17 comprises the following specific steps and principles: when the hydraulic oil supply system 17 supplies oil to the first rodless cavity 20 through the first oil path 23 and starts, or when the hydraulic oil supply system 17 supplies oil to the second rodless cavity 21 through the third oil path 25 and starts, oil pressure impact is generated in a hydraulic pipeline, so that part of hydraulic oil enters the pressure sensing cavity, the buffer cavity is gradually compressed, and in the compression process, the hydraulic oil in the buffer cavity is gradually discharged through the pressure discharge hole 41 through the elastic force of the first return spring 40, so that the double buffering effect is achieved, and the buffering effect is good; a buffer gap is reserved between the piston rod 39 and the second piston 38, so that a transition effect is achieved, and the influence on the pressure regulating cavity when the first oil way 23 or the third oil way 25 is just opened can be avoided; when the ram collides with the blank, the pressure in the first rodless cavity 20 and the second rodless cavity 21 is increased, the pressure in the first oil path 23 and the third oil path 25 is increased inevitably, at the moment, the hydraulic oil in the first oil path 23 and the third oil path 25 further enters the pressure sensing cavity, the buffer cavity is further compressed, the piston rod 39 collides with the second piston 38 at the moment, the oil supply cavity is compressed, the lubricating oil in the oil supply cavity is discharged from the oil outlet 45 and enters the first oil storage cavity 28 and the second oil storage cavity 30, and then the lubricating oil in the first oil storage cavity 28 and the second oil storage cavity 30 is increased, so that the lubricating oil overflows to the inner surface of the upper die 16 and the surface of the ram, the lubrication is realized, the abrasion of the upper die 16 and the lower die 16 and the ram can be reduced, the service life is prolonged, the molding quality is improved, and the demolding is easy; the self-lubricating is realized in the stamping process, when the stamping is completed in the stamping return stroke process, hydraulic oil enters the first rod cavity 19 and the second rod cavity 22 through the second oil path 24 and the fourth oil path 26, the first oil path 23 and the third oil path 25 are opened, the pressure is reduced, the buffer cavity is reset under the resilience of the first return spring 40, and the oil supply cavity is reset under the resilience of the second return spring 43.

A first check valve for limiting the backflow of the lubricating oil from the oil inlet 44 to the lubricating oil supply tank is arranged between the oil inlet 44 and the lubricating oil supply tank, a second check valve for limiting the backflow of the lubricating oil from the first oil supply hole to the oil outlet 45 is arranged between the oil outlet 45 on the first oil supply cylinder 29 and the first oil supply hole, and a third check valve for limiting the backflow of the lubricating oil from the second oil supply hole 32 to the oil outlet 45 is arranged between the oil outlet 45 on the second oil supply cylinder 33 and the second oil supply hole 32.

Through the structure, the lubricating oil can only flow in one direction, namely when the oil supply cavity is compressed, the lubricating oil can only be discharged from the oil outlet 45 on the oil supply cavity, so that the lubricating oil overflows and self-lubricating is realized; when the oil supply cavity returns, lubricating oil can only enter the oil supply cavity from the lubricating oil supply tank, and oil supplement to the oil supply tank is realized.

Be equipped with air inlet and gas vent on the transition chamber 35, and be equipped with the check valve 47 that admits air on the air inlet, be equipped with exhaust check valve 48 on the gas vent, make things convenient for the pressure adjustment of transition chamber 35, when piston rod 39 is impressed transition chamber 35 promptly, exhaust check valve 48 is opened, and when piston rod 39 replied from transition chamber 35, admit air check valve 47 and is opened, keeps transition chamber 35 to be in the constant voltage state.

The buffer cavity is internally provided with a first axial boss 49 for limiting the maximum compression of the first piston 37, and the oil supply cavity is internally provided with a second axial boss 50 for limiting the maximum compression of the second piston 38.

The maximum distance between the first shaft-shaped boss 49 and the first piston 37 can adjust the maximum buffering amount of the hydraulic oil; the spacing of the second axial boss 50 from the second piston 38 controls the maximum spill of oil at a single time.

The material moving manipulator 5 is a multi-axis robot, the material moving manipulators 5 are multiple, and each material moving manipulator 5 is respectively used for moving materials between a heating station and a pre-forging station 3, moving materials between the heating station and the pre-forging station 3, moving materials between the pre-forging station 3 and a multidirectional hydraulic forging station 4, and moving materials between the multidirectional hydraulic forging station 4 and a blanking frame 6.

Because the machining and forming speed of each station is high, the material moving speed of a single multi-axis robot can not reach the standard easily, and therefore a plurality of multi-axis robots can be arranged.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: equivalent changes made according to the structure, shape and principle of the invention shall be covered by the protection scope of the invention.

Claims

1. The utility model provides a production system of disposable cylinder valve for steel bottle which characterized in that: the production system comprises a feeding conveying station, a heating station, a pre-forging station (3), a multidirectional hydraulic forging station (4), a material moving manipulator (5) and a blanking frame (6), wherein the feeding conveying station, the heating station, the pre-forging station (3), the multidirectional hydraulic forging station (4) and the blanking frame (6) are sequentially arranged in an annular mode, the material moving manipulator (5) is located at the center of the production system, and the material moving manipulator (5) is used for moving heated blanks on the discharging end of the heating station into the pre-forging station (3), moving pre-forged parts on the pre-forging station (3) into the multidirectional hydraulic forging station (4) and moving workpieces forged on the multidirectional hydraulic forging station (4) to the blanking frame (6);

the feeding conveying station comprises a feeding frame (1) and a plurality of conveying rails (7), the heating station comprises a heating furnace (2), the conveying rails (7) penetrate through the heating furnace (2), a material moving manipulator (5) is used for grabbing blanks from the feeding frame (1) and placing the blanks on the head end of each conveying rail (7) in sequence, a material feeding cylinder (8) is arranged at the head end of each conveying rail (7), a material ejecting rod (9) which moves in a reciprocating mode is arranged at the telescopic end of each material feeding cylinder (8), the material ejecting rod (9) is used for ejecting the blanks on the conveying rails (7) forwards and conveying the blanks, and a material blocking assembly (10) is arranged at the tail end of each conveying rail (7);

the material blocking assembly (10) comprises a U-shaped fixing frame (11), a ball (12), a rotating shaft (13) and a spring (14), the U-shaped fixing frame (11) is fixed at the tail end of the conveying track (7), the U-shaped opening end of the U-shaped fixing frame (11) is opposite to the conveying direction of the conveying track (7), the ball (12) is sleeved on the rotating shaft (13) and movably fixed on the U-shaped fixing frame (11) through the rotating shaft (13), and the spring is fixed on the U-shaped fixing frame (11) and axially abutted against the ball (12);

multidirectional hydraulic forging station (4) includes the frame, go up mould (15), lower mould (16) and top pneumatic cylinder, the top pneumatic cylinder is fixed in the frame and is used for driving lower mould (16) to go up and down, it is equipped with the ram that a plurality of multidirectional settings to go up between mould (15) and lower mould (16), still be equipped with in the frame and be used for driving the ram flexible ram cylinder that realizes the punching press, multidirectional hydraulic forging station (4) still includes hydraulic oil feeding system (17), top pneumatic cylinder and ram cylinder are by hydraulic oil feeding system (17) control, the top pneumatic cylinder includes first pole chamber (19) and first no pole chamber (20), the ram cylinder includes second no pole chamber (21) and second there is pole chamber (22), hydraulic oil feeding system (17) are including being used for first oil circuit (23) be connected with first no pole chamber (20), be used for with second oil circuit (24) that first has pole chamber (19) is connected, A third oil passage (25) for connection with the second rodless chamber (21) and a fourth oil passage (26) for connection with the second rod-having chamber (22);

self-lubricating mold cores (27) are arranged on the upper mold (15) and the lower mold (16), mold cavities of the upper mold (15) and the lower mold (16) are arranged on the self-lubricating mold cores (27), the self-lubricating mold cores (27) are formed by sintering iron-based powder in a powder metallurgy mode, first oil storage cavities (28) are arranged between the upper mold (15) and the self-lubricating mold cores (27) and between the lower mold (16) and the self-lubricating mold cores (27), first oil supply holes communicated with the first oil storage cavities (28) are also formed in the upper mold (15) and the lower mold (16), and first oil supply cylinders (29) for supplying oil to the self-lubricating mold cores (27) are connected to the first oil paths (23);

a second oil storage cavity (30) is formed in the plunger, an oil guide hole (31) is formed in the front end of the plunger, the oil guide hole (31) is used for communicating the second oil storage cavity (30) with the outer wall of the plunger, a second oil supply hole (32) communicated with the second oil storage cavity (30) is formed in the rear end of the plunger, and a second oil supply cylinder (33) for supplying oil to the second oil storage cavity (30) is connected to the third oil path (25);

the first oil supply cylinder (29) and the second oil supply cylinder (33) respectively comprise a front cavity (34), a transition cavity (35) and a rear cavity (36) which are sequentially communicated, a first piston (37) is arranged in the front cavity (34), the front cavity (34) is divided into a pressure sensing cavity and a buffer cavity by the first piston (37), a second piston (38) is arranged in the rear cavity (36), the rear cavity (36) is divided into a pressure regulating cavity and an oil supply cavity by the second piston (38), the buffer cavity, the transition cavity (35) and the pressure regulating cavity are sequentially communicated, a piston rod (39) arranged in the buffer cavity is arranged on the first piston (37), the piston rod (39) extends into the transition cavity (35), a space is reserved between the piston rod (39) and the second piston (38), a sealing ring used for blocking the communication between the buffer cavity and the transition cavity (35) is arranged on the piston rod (39), and a first reset spring (40) axially abutted against the first piston (37) is arranged in the buffer cavity, a pressure discharge hole (41) is formed in the buffer cavity, a hydraulic oil supply tank is connected to the pressure discharge hole (41), a second return spring (43) which is in axial butt joint with the second piston (38) is arranged on the oil supply cavity, an oil inlet (44) and an oil outlet (45) are further formed in the oil supply cavity, a lubricating oil supply tank is connected to the oil inlet (44), the oil outlet (45) in the first oil supply cylinder (29) is communicated with the first oil supply hole, the oil outlet (45) in the second oil supply cylinder (33) is communicated with the second oil supply hole (32), a connecting port (46) is formed in the pressure sensing cavity, the connecting port (46) in the first oil supply cylinder (29) is communicated with the first oil path (23), and the connecting port (46) in the second oil supply cylinder (33) is communicated with the third oil path (25);

a first one-way valve for limiting the backflow of the lubricating oil from the oil inlet (44) to the lubricating oil supply tank is arranged between the oil inlet (44) and the lubricating oil supply tank, a second one-way valve for limiting the backflow of the lubricating oil from the first oil supply hole to the oil outlet (45) is arranged between the oil outlet (45) on the first oil supply cylinder (29) and the first oil supply hole, and a third one-way valve for limiting the backflow of the lubricating oil from the second oil supply hole (32) to the oil outlet (45) is arranged between the oil outlet (45) on the second oil supply cylinder (33) and the second oil supply hole (32);

an air inlet and an air outlet are arranged on the transition cavity (35), an air inlet one-way valve (47) is arranged on the air inlet, and an air outlet one-way valve (48) is arranged on the air outlet;

a first axial boss (49) used for limiting the maximum compression amount of the first piston (37) is arranged in the buffer cavity, and a second axial boss (50) used for limiting the maximum compression amount of the second piston (38) is arranged in the oil supply cavity.

2. The system for producing a disposable cylinder valve for a steel cylinder according to claim 1, wherein: the material moving manipulator (5) is a multi-axis robot, the material moving manipulators (5) are multiple, and each material moving manipulator (5) is used for moving materials between a heating station and a pre-forging station (3), moving materials between the heating station and the pre-forging station (3), moving materials between the pre-forging station (3) and a multidirectional hydraulic forging station (4) and moving materials between the multidirectional hydraulic forging station (4) and a discharging frame (6).

3. A method for producing a system for producing a disposable cylinder valve for a steel cylinder according to any one of claims 1 to 2, comprising: the method comprises the following steps:

l1, feeding: the material blanks are sequentially placed on each conveying rail (7) through a material moving manipulator (5);

l2, heating: the feeding cylinders (8) on each conveying rail (7) sequentially push the blanks to advance, the blanks are heated at high temperature after entering the heating furnace (2), and the heated blanks are sequentially pushed into the tail ends of the conveying rails (7);

l3, preforging; grabbing and moving the blank on the tail end of the conveying rail (7) to a pre-forging die of the pre-forging station (3) through a material moving manipulator (5), and pre-forging and forming;

l4, multidirectional forging: after the pre-forging is finished, grabbing and moving the blank formed by the pre-forging to a lower die (16) of a multidirectional hydraulic forging station (4) through a material moving manipulator (5) to realize multidirectional forging;

l5, blanking: and grabbing and moving the workpiece to a blanking frame (6) after the multidirectional forging is completed.