CN213003674U

CN213003674U - Liquefied petroleum gas cylinder valve assembling machine

Info

Publication number: CN213003674U
Application number: CN202020856197.XU
Authority: CN
Inventors: 何军明
Original assignee: Wenling Jinyue Automation Equipment Co ltd
Current assignee: Wenling Jinyue Automation Equipment Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-04-20
Anticipated expiration: 2030-05-20

Abstract

The utility model provides a liquefied petroleum gas cylinder valve kludge belongs to mechanical technical field. It has solved the problem that the packaging efficiency of current liquefied petroleum gas cylinder valve is low. The liquefied petroleum gas cylinder valve assembling machine comprises a rack and a first rotary table, wherein a plurality of first tools are arranged on the first rotary table, the first tools comprise a positioning cylinder arranged on the first rotary table, a valve body is vertically sleeved at the upper end of the positioning cylinder, a penetrating guide hole is vertically formed in the middle of the positioning cylinder, a lifting rotary column is arranged in the guide hole, an ejector rod is arranged in the middle of the upper end of the rotary column, a limiting structure is further arranged at the upper end of the rotary column, and the positioning cylinder can lift in a reciprocating mode relative to the first rotary table; one side of carousel is equipped with locking lid feed mechanism A, spring and case cover equipment feed mechanism B, case feed mechanism C, valve body feed mechanism D, locking lid tightening mechanism E, rubber ring assembly devices F along the direction of rotation of carousel in proper order. The liquefied petroleum gas cylinder valve assembling machine has the advantage of high assembling efficiency.

Description

Liquefied petroleum gas cylinder valve assembling machine

Technical Field

The utility model belongs to the technical field of machinery, a kludge, especially a liquefied petroleum gas cylinder valve kludge are related to.

Background

At present, a liquefied petroleum gas cylinder valve comprises a valve body, a valve core sleeve, a return spring and a valve rod are assembled in the valve body, and one end of the valve body is in threaded connection with a locking cover. The assembling of the liquefied petroleum gas cylinder valve is mostly carried out manually, and comprises the steps of assembling a return spring, a valve core sleeve, a valve core, a spring and the like, because the assembling stations are multiple, the actions are multiple, the manual repeated operation can cause fatigue, the operation is long, the working efficiency is low, and the large-scale production of the whole liquefied petroleum gas cylinder valve is influenced.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, and provides a liquefied petroleum gas cylinder valve assembling machine with high assembling efficiency.

The purpose of the utility model can be realized by the following technical proposal: the liquefied petroleum gas cylinder valve assembling machine comprises a rack and a first rotary table which is arranged on the rack and can rotate, wherein a plurality of first tools are arranged on the first rotary table, the first tools comprise a first positioning cylinder which is arranged on the first rotary table, a valve body is vertically sleeved at the upper end of the first positioning cylinder, a through guide hole is vertically formed in the middle of the first positioning cylinder, a rotary column which can rotate is arranged in the guide hole and can reciprocate and ascend and descend relative to the first positioning cylinder, a convex mandril is arranged in the middle of the upper end of the rotary column, a limiting structure for limiting the rotation of a locking cover is further arranged at the upper end of the rotary column, and the first positioning cylinder can reciprocate and ascend and descend relative to the first rotary table;

a locking cover feeding mechanism A, a spring and valve core sleeve assembling feeding mechanism B, a valve core feeding mechanism C, a valve body feeding mechanism D, a locking cover screwing mechanism E and a rubber ring assembling mechanism F are sequentially arranged on one side of the turntable along the rotation direction of the turntable;

the locking cover feeding mechanism A can convey the locking cover to a mandril of the first tool;

the spring and valve core sleeve assembling and feeding mechanism B can blow the spring into the valve core sleeve and install the valve core sleeve into the positioning needle of the tool I, so that the valve core sleeve and one side of the spring penetrate through the ejector rod;

the valve core feeding mechanism C can convey the valve core into the valve core sleeve;

the valve body feeding mechanism D can convey the valve body to the first tool and enable the valve body to be sleeved on the outer side of the valve core sleeve;

the locking cover screwing mechanism E can screw the locking cover into the valve body;

the rubber ring assembling mechanism F can convey and load the rubber ring into the valve body.

The liquefied petroleum gas cylinder valve comprises a valve body, a valve core sleeve, a return spring and a valve rod are assembled in the valve body, a locking cover is in threaded connection with one end of the valve body, a middle hole penetrating through the middle part of the locking cover is formed in the middle part of the locking cover, a plurality of communicating holes are formed in the side part of the middle hole, an annular groove is formed in the inner side wall of the upper end of the valve body, and a threaded hole is. During assembly, the first rotating disc drives the tool to rotate to one side of the locking cover feeding mechanism A, and the locking cover is arranged on the ejector rod of the first tool through the locking cover feeding mechanism A; the first rotating disc drives the first tool to continue rotating to one side of the spring and valve core sleeve assembling and feeding mechanism B, the spring and valve core sleeve assembling and feeding mechanism B is used for loading the spring into the valve core sleeve and loading the valve core sleeve into the ejector rod, and the ejector rod penetrates through the valve core sleeve and the spring; the first rotating disc drives the first tool to continue rotating to one side of the valve core feeding mechanism C, and the valve core feeding mechanism C loads the valve core onto the valve core sleeve; the first rotating disc drives the first tool to continue rotating to one side of the valve body feeding mechanism D, and the valve body feeding mechanism D enables the opening of the valve body to face downwards and is sleeved at the upper end of the positioning cylinder; the first rotating disc drives the first tool to continue rotating to one side of the locking cover screwing mechanism E, and the locking cover screwing mechanism E screws the locking cover into a threaded hole of the valve body; the first rotating disc drives the first tool to continue rotating to one side of the rubber ring assembling mechanism F, and the rubber ring assembling mechanism F is used for installing the rubber ring into the positioning groove of the valve body. The liquefied petroleum gas cylinder valve assembled by the mechanism has the advantages of high assembly efficiency and reliable assembly.

In the liquefied petroleum gas cylinder valve assembling machine, the rack on be equipped with can pivoted carousel two, carousel two on be equipped with frock two, one side of carousel two be equipped with leakproofness detection mechanism G, one side of carousel one be equipped with material moving manipulator one just material moving manipulator one can with the liquefied petroleum gas cylinder valve centre gripping on the carousel one and remove to the frock two of carousel two. And the material moving manipulator clamps the liquefied petroleum gas cylinder valve on the first rotary table and transfers the liquefied petroleum gas cylinder valve to the second tool, the second rotary table drives the liquefied petroleum gas cylinder valve to be transferred to the first tightness detection mechanism G, and the first tightness detection mechanism G carries out tightness detection on the liquefied petroleum gas cylinder valve.

In foretell liquefied petroleum gas cylinder valve kludge, the frame on be equipped with and to rotate carousel three, carousel three on be equipped with frock three, the frame on be equipped with and move material manipulator two just move material manipulator two can the centre gripping carousel two on the liquefied petroleum gas cylinder valve and carry to carousel three on the frock three, one side of carousel three be equipped with in proper order and lock the lid and dash tight mechanism I and deposit pipe feed mechanism J, the locking lid dash tight mechanism I and can make the border punching press of locking lid and lock lid and valve body and link firmly mutually, deposit pipe feed mechanism J can with the deposit pipe the lower extreme of valve body of packing into. The liquefied petroleum gas cylinder valve on the second rotary table is conveyed to a third tool of the third rotary table by the second material moving mechanical arm, the third rotary table drives the third tool to rotate to the position of the locking cover punching mechanism I, the locking cover is punched by the locking cover punching mechanism I, the locking cover is fixedly connected with the valve body, the third rotary table drives the third tool to continue to rotate to the position of the deposition pipe feeding mechanism J, and the deposition pipe feeding mechanism J is used for loading the deposition pipe into the lower end of the valve body.

In the assembling machine for the liquefied petroleum gas cylinder valve, a first spring is arranged between the positioning cylinder and the first rotating disc, and the first spring pushes the positioning cylinder to abut against the first rotating disc.

In the assembling machine for the liquefied petroleum gas cylinder valve, the upper end of the ejector rod is provided with a conical surface. Through setting up the conical surface, the ejector pin of being convenient for passes the locking lid, makes the comparatively convenient and smooth and easy advantage of equipment.

In the assembling machine for the liquefied petroleum gas cylinder valve, the limiting structure is a raised head arranged at the upper end of the rotating column, the raised head is positioned on one side of the ejector rod, and the upper end surface of the raised head is an inclined surface which is obliquely arranged. The locking cover is provided with a plurality of through communication holes, when the locking cover is conveyed to the positioning barrel, the ejector rod penetrates through the middle hole of the locking sleeve, the raised head penetrates through the communication holes of the locking cover, the positioning of the locking cover is realized, the advantages of good positioning effect and convenience in conveying are achieved, the upper end of the raised head is provided with the inclined surface, and the raised head can smoothly penetrate through the communication holes of the locking cover.

In the assembling machine for the liquefied petroleum gas cylinder valve, the first rotary table is fixedly connected with a positioning sleeve, the positioning cylinder penetrates through the positioning sleeve, an annular convex body is arranged on the outer side wall of the positioning cylinder, the lower end of the first spring abuts against the annular convex body, and the upper end of the first spring abuts against the positioning sleeve. The outer side wall of the positioning cylinder is provided with an annular convex body, the upper end and the lower end of the first spring are respectively abutted against the positioning sleeve and the annular convex body, the positioning cylinder has the advantages of convenience in assembly, incapability of enabling the positioning cylinder to fall off from the first rotary table, simple structure and reliability in work.

In the above assembling machine for the lpg cylinder valve, the lower end of the rotary column has a connecting part for connecting with the rotary power head. The lower extreme of column spinner is equipped with and is used for the connecting portion that link to each other with the rotatory unit head transmission, is convenient for drive the column spinner and rotates, has the reliable advantage of transmission.

In the assembling machine for the liquefied petroleum gas cylinder valve, the connecting part is a strip-shaped groove arranged at the lower end of the rotating column. The connection part strip-shaped groove has the advantages of simple structure and good transmission effect, and as the optimization, the connection part is arranged in the rectangular groove or the hexagonal groove at the lower end of the rotating column.

In the assembling machine for the liquefied petroleum gas cylinder valve, a wear-resisting ring is fixedly connected to the first rotating disc, and the positioning cylinder penetrates through the wear-resisting ring. Through setting up foretell wear ring, have better location effect and have longer life simultaneously to a location section of thick bamboo.

In the assembling machine for the liquefied petroleum gas cylinder valve, the lower end of the positioning cylinder is fixedly connected with the anti-drop ring, the anti-drop ring and the rotating column are coaxially arranged, and the anti-drop ring is always positioned on the lower side of the lower end face of the rotating column. Set up foretell anticreep ring through the locking lid, have better spacing effect to the rotating column, have the comparatively convenient advantage of installation simultaneously.

In the assembling machine for the liquefied petroleum gas cylinder valve, the middle part of the guide hole is provided with a convex shoulder, the outer side wall of the rotating column is provided with a second annular convex body, the second annular convex body is positioned on the upper side of the convex shoulder, and the second annular convex body can abut against the convex shoulder. The rotary column is limited from excessively extending through the convex shoulder and the annular convex body II, and the rotary column has the advantages of good limiting effect and simple structure.

In the assembling machine for the liquefied petroleum gas cylinder valve, the upper end of the positioning cylinder is provided with a shaft shoulder. When the valve body is sleeved into the upper end of the positioning cylinder, the lower end of the valve body is abutted against the shaft shoulder, the valve body is positioned, and the valve body positioning device has the advantages of being good in positioning effect and simple in structure.

In the above assembling machine for the liquefied petroleum gas cylinder valve, the locking cap feeding mechanism a includes a vibration disc a1 and a support a2, the support a2 is provided with a material placing frame A3, the material placing frame A3 is provided with a feeding groove A3a and a discharge port A3b, the vibration disc a1 is connected with a conveying track a4, the lower end of the conveying track a4 is communicated with the feeding groove A3a, the discharge port A3b is provided with a blocking plate A5 and a first translation cylinder A6 for driving the blocking plate A5 to translate reciprocally, the support a2 is provided with a push rod a7 and a lifting cylinder A8 for driving the push rod a7 to lift reciprocally, and the push rod a7 is located at the upper side of the discharge port A3 b.

In the above assembling machine for liquefied petroleum gas cylinder valves, the material placing rack A3 is provided with a material pushing plate a9 and a second translation cylinder a10 for driving the material pushing plate a9 to translate, the material pushing plate a9 is located at one side of the outlet of the conveying track a4, and the second translation cylinder a10 drives the material pushing plate a9 to move so as to push the locking cover located at one side of the material pushing plate a9 to the outlet.

In the assembling machine for the liquefied petroleum gas cylinder valve, a piston rod of the lifting cylinder A8 is fixedly connected with a guide cylinder a11, the ejector rod a7 is arranged in the guide cylinder a11, the lower end of the ejector rod a7 extends out of the lower end of the guide cylinder a11, a spring a12 is arranged in the guide cylinder a11, and two ends of the spring a12 respectively abut against the upper end of the ejector rod a7 and the inner top surface of the guide cylinder a 11.

In the assembling machine for the lpg cylinder valve, the assembling and feeding mechanism B for the spring and the valve core sleeve comprises a bracket B1, a first vibration disk B2 for conveying the valve core sleeve, a first conveying guide rail B3, a second vibration disk B4 for conveying the spring and a second conveying guide rail B5 are arranged on the bracket B1, a first material placing part B6 for placing the valve core sleeve is arranged on the bracket B1, a first material placing groove B6a with an upward notch is arranged on the upper side of the first material placing part B6, the first material placing groove B6a is connected with the discharge end of the first conveying guide rail B3, the valve core sleeve on the first conveying guide rail B3 can enter the first material placing groove B6a, a second material placing part B7 is arranged on the bracket B sliding seat 84, a spring B8 is arranged on the second material placing part B7, a B5 through which the spring passes is arranged on the spring B8, and a chute 585738B 378 of the slideway 3724 is provided with a material inlet B5738, the spring can enter a slide B8a through a material inlet B8B, the rear end of the slide B8a is provided with a gas inlet B8c, a communicating pipe B9 communicated with the front end of the slide B8a is arranged at the lower end of a communicating pipe B9, a manipulator B10 is arranged on a support B1, the manipulator B10 can clamp a valve core sleeve positioned in a material placing groove B6a and enable an opening of the valve core sleeve to face upwards, then the valve core sleeve is conveyed to the lower end of the communicating pipe B9, and a gas inlet B8c of the slide B8a enters a compressed gas blowing spring to enter the valve core sleeve along the communicating pipe B9.

In the above assembling machine for liquefied petroleum gas cylinder valves, the manipulator B10 includes a translation frame B10a disposed on a support B1 and a translation cylinder for driving the translation frame B10a to horizontally and transversely move, a lifting plate B10c and a lifting cylinder B10d for driving the lifting plate B10c to reciprocally lift are disposed on the translation frame B10a, a rotary cylinder B10e is disposed on the lifting plate B10c, a cylinder body of the rotary cylinder B10e is fixedly connected to the lifting plate B10c, and an output shaft of the rotary cylinder B10e is connected to a mechanical clamping jaw B10 f.

In the above assembling machine for liquefied petroleum gas cylinder valves, the second material placing part B7 is provided with a feeding block B11 and a feeding cylinder B12 for driving the feeding block B11 to reciprocate, the lower end face of the feeding block B11 is provided with a feeding groove B11a with a downward notch, the feeding block B11 is positioned at one side of the slide way B8a, and the feeding cylinder B12 can push the feeding block B11 to feed the spring positioned on the second material placing part B7 into the slide way B8 a.

In the above assembling machine for liquefied petroleum gas cylinder valve, the upper side of the outer end of the feeding block B11 is provided with an air blowing channel B11B, the outlet of the air blowing channel B11B is vertically arranged downwards, and the outlet of the air blowing channel B11B can be communicated with the feeding port B8B of the slideway B8 a.

In the assembling mechanism B for the spring and the valve core sleeve, the bracket B1 is provided with a sensor B13, and the sensor B13 can sense the spring on the material placing piece B7.

In the assembling machine for the liquefied petroleum gas cylinder valve, the valve core feeding mechanism C comprises a support C1, a vibration disc C2 and a conveying guide rail C3 which are used for conveying the valve core are arranged on the support C1, a material hanging part C4 used for hanging the valve core is arranged on the support C1, the lower end of the conveying guide rail C3 is connected with the material hanging part C4, a manipulator C5 is arranged on the support C1, and the manipulator C5 can clamp the valve core on the material hanging part C4 and convey the valve core to a first tool of the first rotating disc. The valve core is conveyed to the hanging part C4 through the vibrating disc C2 and the conveying guide rail C3, the valve core positioned on the hanging part C4 is clamped and conveyed to the first tool of the first rotating disc through the manipulator C5, and the first tool has the advantages of being stable and reliable in conveying.

In the above assembling machine for the lpg cylinder valve, the manipulator C5 includes a translation seat C5a disposed on the bracket and a translation cylinder C5b for driving the translation seat C5a to reciprocate horizontally, a lifting plate C5C and a lifting cylinder C5d for driving the lifting plate C5C to reciprocate are disposed on the translation seat C5a, a piston rod of the lifting cylinder C5d is provided with a finger clamping cylinder C5e, and a cylinder body of the finger clamping cylinder C5e is fixedly connected to a piston rod of the lifting cylinder C5 d. The manipulator C5 with the arrangement has the advantages of simple structure and high conveying efficiency.

In the assembling machine for the liquefied petroleum gas cylinder valve, the frame is fixedly connected with a mounting disc, the mounting disc is positioned on the upper side of the first rotary table, the mounting disc is provided with a valve core sleeve centering manipulator, the valve core sleeve centering manipulator is positioned on one side of the valve core feeding mechanism C, and the valve core sleeve centering manipulator can clamp a valve core sleeve positioned in the first tool and enable the valve core sleeve to keep a vertical state. The valve core sleeve centering manipulator comprises a centering clamping finger cylinder I and a centering translation cylinder I which drives the centering clamping finger cylinder I to move horizontally, and a clamping opening formed by two clamping fingers of the centering clamping finger cylinder I is matched with the valve core sleeve.

In the assembling machine for the liquefied petroleum gas cylinder valve, the valve body feeding mechanism D comprises a base D1 and a positioning seat D2 arranged on the base D1 and capable of rotating and allowing the valve body to be vertically inserted, the positioning seat D2 is provided with a code printing mechanism D3, the base D1 is provided with a manipulator D4, the manipulator D4 can clamp and convey the valve body located on the tray to the positioning seat D2, and the manipulator D4 can convey the valve body located on the positioning seat D2 to the turntable. Be equipped with the charging tray one that is used for placing the valve body in the frame, manipulator D4 inserts the valve body clamping on the charging tray one and with the valve body on positioning seat D2, beats the sign indicating code through beating ink recorder D3 to the lateral wall of valve body.

In the above assembling machine for liquefied petroleum gas cylinder valves, the code printing mechanism D3 includes the base D1 on be equipped with lean on wheelset D3a and drive lean on the translation cylinder D3b that wheelset D3a reciprocated horizontal longitudinal movement, the base D1 on be equipped with the level setting beat a yard seat D3c and drive beat yard seat D3c reciprocal horizontal lateral movement's translation cylinder two D3D, beat yard seat D3c on link firmly the horizontal lateral arrangement bar code piece D3 e. After the valve body inserted positioning seat D2, it supported to lean on wheelset D3a to make to support to lean on wheelset D3a to support at the lateral wall of valve body to support through a translation cylinder D3b promotion, promoted the lateral wall that bar code block D3e pressed the valve body through two D3D of translation cylinder, accomplished to the valve body and beaten the sign indicating number, had reliable operation and beaten the better advantage of sign indicating number effect.

In the assembling machine for the liquefied petroleum gas cylinder valve, the mounting disc is provided with the valve body centering manipulator, the valve body centering manipulator is positioned on one side of the valve body feeding mechanism D, and the valve body sleeve centering manipulator can clamp the valve body on the first tool and enable the valve body to keep a vertical state. The valve body centralizing manipulator comprises a centralizing clamping finger cylinder II and a centralizing translation cylinder II which drives the centralizing clamping finger cylinder II to move horizontally, and a clamping opening formed by two clamping fingers of the centralizing clamping finger cylinder II is matched with the valve body.

In the above assembling machine for lpg cylinder valves, the locking cap screwing mechanism E includes a bracket E1, the bracket E1 is provided with a pressing cylinder E2 and a first lifting cylinder E3 capable of driving the pressing cylinder E2 to reciprocate, the pressing cylinder E2 is located on the upper side of the turntable, the bracket E1 is provided with a rotatable rotating rod E4 and a servo motor E5 capable of driving the rotating rod E4 to rotate, the bracket E1 is provided with a second lifting cylinder E6 capable of driving the rotating rod E4 to reciprocate, the rotating rod E4 is located on the lower side of the turntable, and the rotating rod E4 and the pressing cylinder E2 are coaxially arranged. When screwing up the locking lid, a lift cylinder E3 drives the upper end that pressing cylinder E2 pushed down the valve body, two E6 of rethread lift cylinder drive rotary rod E4 and rise, rotary rod E4 promotes the column spinner and the locking lid of dress on the column spinner rises to the screw hole department of valve body, it rotates to drive rotary rod E4 through servo motor E5, rotary rod E4 drives the column spinner and rotates in screwing in the valve body with the locking lid, it is better to have the effect of screwing up, the equipment effect is higher and the reliable operation's advantage.

In the assembling machine for the liquefied petroleum gas cylinder valve, the piston rod of the lifting cylinder I E3 is fixedly connected with a guide cylinder E7, the compression cylinder E2 is arranged in the guide cylinder E7, a spring E8 is arranged in the guide cylinder E7, and two ends of the spring E8 respectively abut against the guide cylinder E7 and the compression cylinder E2. Set up above-mentioned spring E8, make pressing cylinder E2 press and have better buffering effect on the valve body, make in the comparatively smooth and easy screw in of locking lid reaches the valve body, play better protection effect to the valve body simultaneously.

In the assembling machine for the liquefied petroleum gas cylinder valve, the lower end of the guide cylinder E7 is fixedly connected with a drop-proof ring E9, the outer side wall of the pressing cylinder E2 is provided with a shoulder E2a, the pressing cylinder E2 penetrates through the drop-proof ring E9, and the shoulder E2a can abut against the inner end face of the drop-proof ring E9. The anti-drop ring E9 is arranged to prevent the pressing cylinder E2 from dropping from the guide cylinder E7, so that the anti-drop guide device has the advantages of simple structure and reliable work.

In the assembling machine for the liquefied petroleum gas cylinder valve, the bracket E1 is provided with a lifting seat E10 capable of lifting in a reciprocating manner, the housing of the servo motor E5 is fixedly connected to the lifting seat E10, and the piston rod of the lifting cylinder two E6 is fixedly connected with the lifting seat E10. The lifting seat E10 is driven to reciprocate up and down through the second lifting cylinder E6, so that the rotating rod E4 is driven to reciprocate up and down, and the lifting device has the advantages of simple structure and high working efficiency.

In the locking cover screwing mechanism E of the liquefied petroleum gas cylinder valve assembling machine, the support E1 is fixedly connected with a vertically arranged guide rail E11, the lifting seat E10 is provided with a slide block E12, and the guide rail E11 is embedded in a slide groove of the slide block E12. Through the arrangement of the guide rail E11 and the slide block E12, the lifting seat E10 has a good guiding effect in lifting.

In the assembling machine for the liquefied petroleum gas cylinder valve, the lower end of the pressing cylinder E2 is fixedly connected with an anti-rotation gasket E13, and the upper end surface of the anti-rotation gasket E13 protrudes out of the lower end surface of the pressing cylinder E2. The lower extreme of clamping cylinder E2 links firmly prevents changeing packing ring E13, and when clamping cylinder E2 drove and prevents changeing packing ring E13 and support and lean on the valve body, can avoid the valve body to rotate, makes in the locking lid can smoothly screw in the valve body, has the advantage of reliable operation.

In the above assembling machine for the lpg cylinder valve, the rubber ring assembling mechanism F includes a support F1, a vibrating disk F2 and a conveying rail F3 for conveying rubber rings, the support F1 is provided with a material placing member F4 and the material placing member F4 is provided with a material placing groove F4a, one side of the material placing groove F4a is communicated with an outlet end of the conveying rail F3, the material placing groove F4a is provided with a vertically arranged material outlet F4b, the upper end of the material outlet F4b is provided with a tapered hole-shaped guide part F4d, the upper end diameter of the guide part F4 4624 is larger than the lower end diameter thereof, the upper side of the guide part F4d is provided with a horizontally arranged material outlet F5 and a translation cylinder F10 for driving the material outlet F9 to reciprocate and horizontally move, the translation cylinder F10 can drive the material outlet F5 to block the material outlet F4b, the support F1 is provided with a vertical lifting cylinder F6 and a pressure rod F8672 for driving the material outlet F5972 to reciprocate and lift the pressure rod F8672, support F1 on be equipped with top piece F7 and drive two F12 of lift cylinder that top piece F7 reciprocated lift, top piece F7, discharge gate F4b and depression bar F6 coaxial setting just top piece F7 be located depression bar F6's downside. When the turntable drives the tooling to rotate to the rubber ring assembling mechanism F, the translation cylinder F10 drives the striker plate F5 to block the discharge port F4b on the material placing part F4, the sealing gasket slides into the material placing groove F4a of the material placing part F4 along the conveying guide rail, at the moment, the lifting cylinder II F12 drives the ejector block F7 to ascend so that the positioning cylinder ascends, the valve body abuts against the material placing part F4, the lifting cylinder I F11 drives the pressure rod F6 to push the rubber ring to abut against the material placing part F4, meanwhile, the translation cylinder F10 drives the striker plate F5 to separate from the discharge port F4b, and then the lifting cylinder I F11 drives the pressure rod F6 to move downwards to push the rubber ring into the annular groove of the valve body through the guide part F4d and the discharge port F4 b.

In the assembling machine for the lpg cylinder valve, the lower end of the material placing member F4 has a limiting groove F4c, and the limiting groove F4c is coaxially arranged with the discharge port F4 b. The two lifting cylinders F12 drive the jacking block F7 to ascend to enable the positioning cylinder to ascend, so that the valve body is abutted against the material placing piece F4, the upper end of the valve body enters the limiting groove F4c, the valve body and the discharge port F4b are coaxially arranged, the rubber ring can be accurately installed in the annular groove of the valve body, and the assembly is carried out smoothly.

In the assembling machine for the liquefied petroleum gas cylinder valve, the pressure lever F6 is cylindrical, the guide rod 8 is arranged in the middle of the pressure lever F6 in a penetrating manner, the guide rod 8 and the pressure lever F6 are coaxially arranged, and the lower end of the guide rod 8 extends out of the lower end of the pressure lever F6. Guide bar 8 and the inner circle phase-match of rubber circle, a lift cylinder F11 drives depression bar F6 and makes guide bar 8 pass sealed the pad, and translation cylinder F10 drives striker plate F5 and breaks away from discharge gate F4b back, and guide bar 8 plays better spacing effect to the rubber circle, can avoid sealed the skew of filling up, has improved the reliability of installation.

In the assembling machine for the lpg cylinder valve, a spring F9 is arranged in the pressure lever F6, and two ends of the spring F9 respectively abut against the pressure lever F6 and the guide rod 8. Lifting cylinder F11 drives depression bar F6 and makes guide bar 8 pass sealed the pad, translation cylinder F10 drives striker plate F5 and breaks away from discharge gate F4b after, spring F9 promotes guide bar 8 and drives the rubber circle downstream, lifting cylinder F11 promotes depression bar F6 and guide bar 8 simultaneously and makes the rubber circle downstream, and pack the rubber circle into the annular groove of valve body in, it is more smooth and easy to the transport and the installation of rubber circle, the installation effectiveness has been improved.

In the above assembling machine for the valve of the lpg cylinder, the lower end of the guide rod 8 has a tapered surface F8 a. The lower end of the guide rod 8 is a conical surface F8a, which facilitates the guide rod 8 to pass through the rubber ring.

In the assembling machine for the lpg cylinder valve, the upper end of the guide rod 8 has an annular protrusion F8b, the inner side wall of the pressing rod F6 has a shoulder F6a, and the annular protrusion F8b can abut against the shoulder F6 a. The annular convex body F8b can abut against the shoulder F6a, so that the guide rod 8 is prevented from falling off from the pressure rod F6, and the structure is reliable.

In the above assembling machine for the valve of the lpg cylinder, the upper end of the top block F7 has a circular cross-section.

In the liquefied petroleum gas cylinder valve assembling machine, a detection mechanism FG is arranged on one side of the first rotating disc and is located at the next station of the first material moving manipulator, the detection mechanism FG comprises a detection cylinder FG1 and a detection block FG2, the cylinder body is vertically and fixedly connected onto the mounting disc, and the detection cylinder FG1 can drive the detection block FG2 to reciprocate relative to a first tool located on one side of the detection cylinder FG 1. When the inside accessory of the liquefied petroleum gas cylinder valve falls on tool one, drive through detecting cylinder FG1 and detect piece FG2 and down move and lean on the accessory, judge through the difference in height that the liquefied petroleum gas cylinder valve that a former station material moving manipulator centre gripping is not assembled successfully to signal that will detect sends the controller, the controller control moves a material manipulator and rejects the liquefied petroleum gas cylinder valve that is not assembled successfully, has improved the qualification rate of equipment.

In the above assembling machine for lpg cylinder valve, the first sealing detection mechanism G includes a bracket G1, an upper cylinder G2, a lower cylinder G3 and an air inlet seat G4, the bracket G1 is provided with a first lifting cylinder G8 capable of driving the upper cylinder G2 to reciprocate, a cavity of the upper cylinder G2 and a cavity of the lower cylinder G3 can form a sealed detection cavity G5, a cavity of the lower cylinder G3 is used for placing an lpg cylinder valve, the lower cylinder G3 is a second tooling vertically penetrating through a worktable, the lower end of the lower cylinder G3 is provided with an air inlet G3a communicated with the cavity of the lower cylinder G3, the upper cylinder G2 and the air inlet seat G9 are coaxially arranged, the bracket G1 is provided with a second lifting cylinder G10 capable of driving the air inlet seat G4 to lift, and the second lifting cylinder G10 is capable of driving the air inlet seat G8672 to reciprocate with the air inlet seat G8672 of the air inlet cylinder G867, go up barrel G2 in be equipped with end cap G6, a lift cylinder G8 can drive barrel G2 down move and support and lean on barrel G3 down just end cap G6 support and lean on the valve body upper end that lies in the liquefied petroleum gas cylinder valve in barrel G3's the cavity down, last barrel G2 on be equipped with leak detector G7, leak detector G7's sense terminal with last barrel G2's cavity be linked together. The liquefied petroleum gas cylinder valve to be detected is vertically arranged in a cavity of a lower cylinder G3, a lifting cylinder II G10 drives an air inlet seat G4 to move upwards to enable the air inlet seat G4 to abut against the lower end of the lower cylinder G3, then a lifting cylinder I G8 drives an upper cylinder G2 and a plug G6 to move downwards, the plug G6 plugs the upper end of a valve body of the liquefied petroleum gas cylinder valve, the lower end of an upper cylinder G2 abuts against the upper end of the lower cylinder G3, compressed gas is introduced into an air inlet seat G4, the compressed gas enters the valve body of the liquefied petroleum gas cylinder valve through an air inlet G3a of the lower cylinder G3, when the liquefied petroleum gas cylinder valve leaks, the compressed gas enters a detection cavity G5, and a leak detector G7 detects the compressed gas in the detection cavity G5.

In the above assembling machine for the lpg cylinder valve, a spring G9 is disposed between the plug G6 and the upper cylinder G2, and both ends of the spring G9 respectively abut against the plug G6 and the upper cylinder G2. Through setting up above-mentioned spring G9, barrel G3 and end cap G6 move down under the lift cylinder G8 drives, and end cap G6 supports the upper end back at the valve body, and barrel G3 continues to move down and support and press on barrel G3 down under the lift cylinder G8 drives, has simple structure and the reliable and safe advantage of work.

In the above assembling machine for the lpg cylinder valve, the upper cylinder G2 is fixedly connected with a pressure relief valve G13, and the pressure relief valve G13 is communicated with the cavity of the upper cylinder G2. When the sealing performance of the liquefied petroleum gas cylinder valve cannot meet the requirement, the pressure relief valve G13 can avoid overlarge pressure of the cavity of the upper cylinder G2 and the cavity of the lower cylinder G3, and the safety is improved.

In the assembling machine for the lpg cylinder valve, a gasket G14 is disposed at the upper end of the air inlet seat G4, and the gasket G14 is used for the lower end of the lower cylinder G3 to abut against. Through the arrangement of the sealing gasket G14, the lower end of the lower cylinder G3 can form good sealing with the air inlet seat G4, and the sealing gasket has the advantage of good sealing effect.

In the assembling machine for the liquefied petroleum gas cylinder valve, a communicating joint G15 is coaxially arranged in a cavity of the lower cylinder G3, an annular boss G15a is arranged on the outer side wall of the communicating joint G15, a through communicating channel G15b is arranged in the middle of the communicating joint G15, a first sealing ring G16 is sleeved on the outer side of the communicating joint G15, a second sealing ring G17 and a third sealing ring G18 are respectively embedded in the upper end surface and the lower end surface of the annular boss G15a, the first sealing ring G16 can be extruded on the inner side wall of the valve body, the second sealing ring G17 can be extruded on the lower end surface of the valve body, and the third sealing ring G18 can be extruded on the inner side wall of the cavity of the lower cylinder G3.

In the assembling machine for the liquefied petroleum gas cylinder valve, the upper end of the upper cylinder G2 is fixedly connected with an installation seat G19, the upper end of the plug G6 is coaxially provided with a guide pillar part G6a, the upper end of the guide pillar part G6a penetrates through the installation seat G19, the outer side of the guide pillar part G6a is provided with a snap ring G20, and the snap ring G20 can abut against the installation seat G19. Through setting up foretell snap ring G20, can avoid end cap G6 to drop from last barrel G2, have easy dismounting and the reliable advantage of structure.

In the above assembling machine for the lpg cylinder valve, a sealing ring G21 is provided on the upper end surface of the lower cylinder G3, and the lower end surface of the upper cylinder G2 can abut against the sealing ring G21. By providing the seal ring G21, the upper cylinder G2 and the lower cylinder G3 can form a good seal, so that the detection can be performed smoothly.

In the assembling machine for the liquefied petroleum gas cylinder valve, a first sealing detection mechanism G and a second sealing detection mechanism H are sequentially arranged on one side of the second rotary table along the rotation direction of the second rotary table, and the second sealing detection mechanism H and the first sealing detection mechanism G have the same structure. And the second tightness detection mechanism H is filled with high-pressure gas to detect the tightness of the valve body under high pressure.

In the assembling machine for the liquefied petroleum gas cylinder valve, the locking cover punching mechanism I comprises a support I1, a support I1 is provided with a backer I2, the support I1 is provided with a riveter I4 with a rivet head arranged upwards and a lifting cylinder I3 for driving the riveter I4 to reciprocate, and the backer I2 and the riveter I4 are respectively positioned at the upper side and the lower side of the third rotary table. The third tool is cylindrical, the liquid supply petroleum gas cylinder valve is vertically placed at the upper end of the third tool, and the lower end of the third tool can be used for a riveting head of a riveting gun I4 to enter.

In the above assembling machine for liquefied petroleum gas cylinder valves, the depositing tube feeding mechanism J includes a support J1, a vibrating tray J2 and a conveying track J3 which are arranged on the support J1, the support J1 is provided with a horizontally arranged material placing plate J4, the material placing plate J4 is provided with a material feeding frame J5, one side of the material feeding frame J5 is provided with a material feeding port, the material feeding frame J5 is provided with a vertically arranged material discharging port, the support J1 is provided with a material feeding cylinder J6 which drives the material feeding frame J5 to perform reciprocating translation, the lower side of the material placing plate J4 is provided with a translation seat J7 and a translation cylinder J8 which drives the translation seat J7 to perform horizontal movement, the translation seat J7 is vertically provided with a material pushing cylinder J9 with an upward opening and a lifting cylinder J10 which drives the material pushing cylinder J9 to perform reciprocating lifting, and the translation cylinder J387 8 can drive the translation seat J7 to move to the lower side of the three tools, and a material blocking block J11 and a material blocking cylinder J12 for driving the material blocking block J11 to move are arranged on the support J1.

And the discharging manipulator is arranged on the rack and positioned on one side of the third rotary table, and can clamp and convey the liquefied petroleum gas cylinder valve assembled with the deposition pipe on the third rotary table to the second material disc.

Compared with the prior art, the liquefied petroleum gas cylinder valve assembling machine has the following advantages:

1. the liquefied petroleum gas cylinder valve assembling machine completes automatic assembling of the liquefied petroleum gas cylinder valve through the mechanism, and has the advantages of high assembling efficiency and high assembling qualified rate;

2. the mechanisms A to J are respectively provided with the first rotary table, the second rotary table and the third rotary table on the machine frame, so that the liquefied petroleum gas cylinder valve assembling machine is compact in structure, small in occupied area, applicable to small space and improved in use flexibility;

3. the mechanism A to the mechanism J are adopted for assembly, so that the reliability of assembly is improved.

1. Description of the drawings

Fig. 1 is a schematic plan view of the liquefied petroleum gas cylinder valve assembling machine.

Fig. 2 is a schematic sectional view of a first tooling of the liquefied petroleum gas cylinder valve assembling machine.

Fig. 3 is a schematic sectional view of the present lpg cylinder valve.

Fig. 4 is a schematic perspective view of the locking cover feeding mechanism a of the assembling machine.

Fig. 5 is a schematic sectional view of the locking cap feeding mechanism a of the assembling machine.

Fig. 6 is a schematic perspective view of the spring and valve core sleeve assembling and feeding mechanism B of the assembling machine.

Fig. 7 is a partial perspective view of the spring and valve core sleeve assembling and feeding mechanism B of the assembling machine.

Fig. 8 is a partial perspective view of the spring and valve core sleeve assembling and feeding mechanism B of the assembling machine.

Fig. 9 is a schematic top view of fig. 8.

FIG. 10 is a schematic cross-sectional view of K-K of FIG. 9.

Fig. 11 is a schematic sectional view of L-L of fig. 9.

Fig. 12 is a perspective view of the valve element feed mechanism C of the assembling machine.

Fig. 13 is a perspective view of the valve body feed mechanism D of the assembling machine.

Fig. 14 is a schematic sectional view of the locking cap tightening mechanism E of the assembling machine.

Fig. 15 is a schematic view showing the operation of the locking cap tightening mechanism E of the assembling machine.

Fig. 16 is a perspective view schematically showing the rubber ring assembling mechanism F of the assembling machine.

Fig. 17 is a schematic sectional view of the rubber ring assembling mechanism F of the assembling machine.

Fig. 18 is an enlarged partial view of M of fig. 17.

Fig. 19 is a schematic perspective view of the first rotary table.

Fig. 20 is a schematic structural view of the sealing performance detection mechanism G of the assembling machine.

Fig. 21 is an enlarged partial view of N of fig. 20.

Fig. 22 is a perspective view of a third turntable and components on the third turntable of the assembling machine.

Fig. 23 is a schematic structural diagram of the locking cover punching mechanism I of the assembling machine.

FIG. 24 is a perspective view showing the conveyance of the deposition tube by the deposition tube feeding mechanism J of the assembling machine.

FIG. 25 is a schematic view showing the structure of the deposition tube feeding mechanism J of the assembling machine.

In the figure, 1, a frame; 2. a first rotating disc; 3. a first tool is assembled; 3a, a positioning cylinder; 3a1, guide holes; 3a2, shoulder; 3a3, annular convex body; 3a4, shoulder; 3b, rotating the column; 3b1, a second annular convex body; 3b2, a top bar; 3b3, tapered surface; 3b4, nose; 3b5, inclined plane; 3b6, connecting part; 3c, a first spring; 3d, a positioning sleeve 3e and a wear-resistant ring; 3f, preventing ring dropping;

4. a liquefied petroleum gas cylinder valve; 4a, a valve body; 4b, a valve core sleeve; 4c, a spring; 4d, a valve core; 4e, a locking cover; 4e1, mesopores; 4e2, communication hole; 4f, rubber ring; 4g, a deposition tube;

5. mounting a disc; 6. the valve core sleeve centralizes the mechanical arm; 6a, a first clamping finger righting cylinder; 6b, righting the translation cylinder I; 7. the valve body centralizes the mechanical arm; 7a, a second clamping finger righting cylinder; 7b, righting the translation cylinder II; 8. a second rotating disc; 8a, tooling II; 9. a third rotating disc; 9a, tooling III; 10. a feeding manipulator; 11. a first material tray; 12. a material tray II; 13. a first material moving manipulator; 14. a material moving manipulator II;

A. a locking cover feeding mechanism A; a1, vibration disk A1; a2, scaffold a 2; a3, a material placing rack A3; a3a, a feed chute A3 a; a3b, a discharge hole A3 b; a4, conveying track A4; a5, barrier plate A5; a6, a translation cylinder I A6; a7, a top rod A7; a8, lifting cylinder A8; a9, a pushing plate A9; a10, a second translation cylinder A10; a11, guide cylinder A11; a12, spring A12;

B. the spring and valve core sleeve assembling and feeding mechanism B; b1, support B1; b2, vibrating disc B2; b3, a first conveying guide rail B3; b4, a vibrating disk II B4; b5, a second conveying guide rail B5; b6, a first material placing part B6; b6a, a first material placing groove B6 a; b7, a second material placing part B7; b8, spring slide B8; b8a, a slideway B8 a; B8B and a feeding port B8B; b8c, air inlet B8 c; b9, communicating pipe B9; b10, manipulator B10; b10a, a translation rack B10 a; B10B, a translation cylinder I B10B; b10c, lifting plate B10 c; b10d, lifting cylinder B10 d; b10e, rotary cylinder B10 e; b10f, mechanical jaw B10 f; b11, a feed block B11; b11a, a feed chute B11 a; B11B, an air blowing channel B11B; b12, a feeding cylinder B12; b13, sensor B13;

a spool feed mechanism C, C1, a bracket C1; c2, vibration disc C2; c3, conveying guide rail C3; c4, hanging piece C4; c5, manipulator C5; c5a, translation seat C5 a; c5b, translation cylinder C5 b; C5C, lifter plate C5C; c5d, lifting cylinder C5 d; c5e, finger clamping cylinder C5 e;

D. a valve body feeding mechanism D; d1, base D1; d2, positioning seat D2; d3, code printing mechanism D3; d3a, abutment wheel set D3 a; d3b, a translation cylinder D3 b; d3c, a coding base D3 c; D3D, a second translation cylinder D3D; d3e, barcode block D3 e; d4, robot D4;

E. a locking cover screwing mechanism E; e1, scaffold E1; e2, compression cylinder E2; e2a, shoulder E2 a; e3, a lifting cylinder I E3; e4, rotary lever E4; e5, servomotor E5; e6, a second lifting cylinder E6; e7, guide cylinder E7; e8, spring E8; e9, anticreep ring E9; e10, lifting seat E10; e11, guide E11; e12, slider E12; e13, anti-rotation washer E13;

F. a rubber ring assembling mechanism F; f1, stent F1; f2, vibrating disk F2; f3, conveying track F3; f4, a material placing piece F4; f4a and a material placing groove F4 a; f4b and a discharge hole F4 b; f4c and a limit groove F4 c; f4d, guide F4 d; f5, a striker plate F5; f6, a pressure lever F6; f6a, shoulder F6 a; f7, top block F7; f8, guide bar 8; f8a, tapered face F8 a; f8b, annular projection F8 b; f9, spring F9; f10, a translation cylinder F10; f11, a first lifting cylinder F11; f12, a second lifting cylinder F12;

FG. A detection mechanism FG; FG1, sense cylinder FG 1; FG2, detection block FG 2;

G. a sealing detection mechanism I; g1, scaffold G1; g2, upper cylinder G2; g3, lower cylinder G3; g3a, air inlet G3 a; g4, air inlet seat G4; g5, detection cavity G5; g6, plug G6; g6a, guide post part G6 a; g7, leak detector G7; g8, a lifting cylinder G8; g9, spring G9; g10, a second lifting cylinder G10; g11, guide column G11; g12 and a guide sleeve G12; g13, pressure relief valve G13; g14, gasket G14; g15, communication joint G15; g15a, annular boss G15 a; g15b, communication channel G15 b; g16, seal ring one G16; g17, sealing ring II G17; g18, sealing ring III G18; g19, mount G19; g20, snap ring G20; g21, seal G21;

I. the locking cover punching mechanism I; i1, stent I1; i2, backer I2; i3, a lifting cylinder I3; i4, riveter I4;

a deposition tube feeding mechanism J; j1, scaffold J1; j2, vibratory pan J2; j3, conveying track J3; j4, a material placing plate J4; j5, feed block J5; j6, feeding cylinder J6; j7, translation mount J7; j8, translation cylinder J8; j9, a pushing cylinder J9; j10, lifting cylinder J10; j11, stop block J11; j12, a material blocking cylinder J12;

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 25, the liquefied petroleum gas cylinder valve assembling machine comprises a frame 1 and a first rotary table 2 which is arranged on the frame 1 and can rotate, wherein a plurality of first tools 3 are arranged on the first rotary table 2, each first tool 3 comprises a positioning cylinder 3a arranged on the first rotary table 2, a wear-resistant ring 3e is fixedly connected to the first rotary table 2, and the positioning cylinder 3a penetrates through the wear-resistant ring 3 e. The upper end of the positioning cylinder 3a is provided with a valve body 4a which is vertically sleeved, the middle part of the positioning cylinder 3a is vertically provided with a through guide hole 3a1, a rotatable rotary column 3b is arranged in the guide hole 3a1, the rotary column 3b can reciprocate up and down relative to the positioning cylinder 3a, the middle part of the upper end of the rotary column 3b is provided with a convex ejector rod 3b2, and the upper end of the ejector rod 3b2 is provided with a conical surface 3b 3. The upper end of the rotary column 3b is also provided with a limiting structure for limiting the rotation of the locking cover 4e, the limiting structure is a raised head 3b4 arranged at the upper end of the rotary column 3b, the raised head 3b4 is positioned at one side of the ejector rod 3b2, and the upper end surface of the raised head 3b4 is an inclined surface 3b5 which is obliquely arranged. The turntable I2 is fixedly connected with a positioning sleeve 3d, the positioning cylinder 3a penetrates through the positioning sleeve 3d, an annular convex body 3a3 is arranged on the outer side wall of the positioning cylinder 3a, the lower end of the spring I3 c abuts against the annular convex body 3a3, and the upper end of the spring I3 c abuts against the positioning sleeve 3 d. The lower end of the rotary column 3b is provided with a connecting part 3b6 used for being connected with a rotary power head, and the connecting part 3b6 is a strip-shaped groove arranged at the lower end of the rotary column 3 b. The connecting part 3b6 position bar groove has simple structure and the better advantage of transmission effect, and as preferred, connecting part 3b6 position sets up rectangular groove or hexagonal groove in the rotary column 3b lower extreme.

The lower extreme of a location section of thick bamboo 3a links firmly anticreep ring 3f, anticreep ring 3f and column spinner 3b coaxial arrangement and anticreep ring 3f are located all the time the column spinner 3b downside of terminal surface down. The middle part of the guide hole 3a1 is provided with a shoulder 3a2, the outer side wall of the rotary column 3b is provided with a second annular convex body 3b1, the second annular convex body 3b1 is positioned on the upper side of the shoulder 3a2, and the second annular convex body 3b1 can abut against the shoulder 3a 2. The shoulder 3a2 and the second annular convex body 3b1 limit the over-extension of the rotating column 3b, and have the advantages of good limiting effect and simpler structure.

The upper end of the positioning cylinder 3a is provided with a shoulder 3a 4. When the valve body 4a is sleeved in the upper end of the positioning cylinder 3a, the lower end of the valve body 4a is abutted against the shaft shoulder 3a4, the valve body 4a is positioned, and the positioning device has the advantages of good positioning effect and simple structure.

A locking cover feeding mechanism A, a spring 4C and valve core sleeve 4B assembling feeding mechanism B, a valve core feeding mechanism C, a valve body feeding mechanism D, a locking cover screwing mechanism E and a rubber ring assembling mechanism F are sequentially arranged on one side of the rotary table along the rotation direction of the rotary table;

the locking cover feeding mechanism A can convey the locking cover 4e to the ejector rod 3b2 of the first tool 3;

the spring 4c and the valve core sleeve 4B are assembled by the feeding mechanism B, so that the spring 4c can be blown into the valve core sleeve 4B, the valve core sleeve 4B is installed in a positioning needle of the tooling I3, and the side of the valve core sleeve 4B and the spring I3 c passes through the ejector rod 3B 2;

the valve core feeding mechanism C can convey the valve core into the valve core sleeve 4 b;

the valve body feeding mechanism D can convey the valve body 4a to the first tool 3 and enable the valve body 4a to be sleeved on the outer side of the valve core sleeve 4 b;

the locking cover screwing mechanism E can screw the locking cover 4E into the valve body 4 a;

the rubber ring fitting mechanism F can convey and position the seal gasket in the valve body 4 a.

The rack 1 is provided with a second rotatable turntable 8, the second turntable 8 is provided with a second tool 8a, one side of the second turntable 8 is sequentially provided with a first tightness detection mechanism G and a second tightness detection mechanism H, and the second tightness detection mechanism H and the first tightness detection mechanism G are identical in structure. And a first material moving manipulator 13 is arranged on one side of the first rotary table 2, and the first material moving manipulator 13 can clamp and move the liquefied petroleum gas cylinder valve 4 on the first rotary table 2 to a second tooling 8a of the second rotary table 8. The rotary table three 9 can be rotated on the rack 1, the tooling three 9a is arranged on the rotary table three 9, the material moving mechanical arm two 14 and the material moving mechanical arm two 14 can clamp the liquefied petroleum gas cylinder valve 4 on the rotary table two 8 and convey the liquefied petroleum gas cylinder valve to the tooling three 9a of the rotary table three 9 are arranged on the rack 1, the locking cover punching mechanism I and the deposition pipe feeding mechanism J are sequentially arranged on one side of the rotary table three 9, the locking cover punching mechanism I can punch the edge of the locking cover 4e and enable the locking cover 4e to be fixedly connected with the valve body 4a, and the deposition pipe feeding mechanism J can load the deposition pipe 4g into the lower end of the valve body 4 a.

Locking lid feed mechanism A includes vibration dish A1 and support A2, is equipped with on support A2 and puts work or material rest A3, is equipped with chute feeder A3a and discharge gate A3b on putting work or material rest A3, even has delivery track A4 on the vibration dish A1, and delivery track A4's lower extreme is linked together with chute feeder A3a, discharge gate A3b department is equipped with and blocks board A5 and drives a translation cylinder A6 that blocks board A5 and reciprocate the translation, is equipped with ejector pin A7 and drives the reciprocal lift cylinder A8 that goes up and down of ejector pin A7 on support A2, and ejector pin A7 is located the upside of discharge gate. The material placing frame is provided with a material pushing plate A9 and a second translation cylinder A10 for driving the material pushing plate A9 to translate, the material pushing plate A9 is located on one side of an outlet of the conveying track A4, and the second translation cylinder A10 drives the material pushing plate A9 to move so as to push the locking cover 4e located on one side of the material pushing plate A9 to the outlet. A piston rod of the lifting cylinder A8 is fixedly connected with a guide cylinder A11, a push rod A7 is arranged in the guide cylinder A11, the lower end of the push rod A7 extends out of the lower end of the guide cylinder A11, a spring A12 is arranged in the guide cylinder A11, and two ends of the spring A12 abut against the upper end of the push rod A7 and the inner top surface of the guide cylinder A11 respectively.

The assembling and feeding mechanism B of the spring and the valve core sleeve comprises a bracket B1, a first vibrating disk B2 for conveying the valve core sleeve 4B, a first conveying guide rail B3, a second vibrating disk B4 for conveying the spring 4c and a second conveying guide rail B5 are arranged on the bracket B1, a first material placing part B6 for placing the valve core sleeve 4B is arranged on the bracket B1, a first material placing groove B6a with an upward notch is arranged on the upper side of the first material placing part B6, a first material placing groove B6a is connected with the discharge end of the first conveying guide rail B3, the valve core sleeve 4B on the first conveying guide rail B3 can enter the first material placing groove B6a, a second material placing part B7 is arranged on the bracket B1, a spring sliding seat B7 is arranged on the second material placing part B7, a sliding seat B8 7 through which the spring 4c passes is arranged on the upper side of the spring B8B 7, a connecting chute B7 is provided with a feed inlet B8B 7, and a front chute 7 communicated with a communicating pipe B368B 7 through which a feed inlet B368B 7 and a communicating pipe 7, the lower end of the communication pipe B9 is arranged downwards, the bracket B1 is provided with a manipulator B10, the manipulator B10 can clamp the valve core sleeve 4B in the first material accommodating groove B6a and enable the opening of the valve core sleeve 4B to face upwards, then the valve core sleeve 4B is conveyed to the lower end of the communication pipe B9, and the air inlet B8c of the slideway B8a enters the compressed air blowing spring 4c to enter the valve core sleeve 4B along the communication pipe B9.

The manipulator B10 includes the translation frame B10a that sets up on support B1 and drives the translation cylinder of translation frame B10a horizontal lateral shifting, be equipped with lifter plate B10c and the lift cylinder B10d that drives lifter plate B10c reciprocal lift on the translation frame B10a, be equipped with revolving cylinder B10e on the lifter plate B10c, the cylinder body of revolving cylinder B10e links firmly on lifter plate B10c, the output shaft of revolving cylinder B10e is equipped with mechanical clamping jaw B10f and links to each other.

The feeding block B11 and the feeding cylinder B12 which drives the feeding block B11 to reciprocate are arranged on the material placing piece II B7, a feeding groove B11a with a downward notch is formed in the lower end face of the feeding block B11, the feeding block B11 is located on one side of the slide way B8a, and the feeding cylinder B12 can push the feeding block B11 to feed the spring 4c located on the material placing piece II B7 into the slide way B8 a. The bracket B1 is provided with a sensor B13 and a sensor B13 which can sense the spring 4c on the material placing piece B7.

Valve core feed mechanism C includes support C1, is equipped with the vibration dish C2 that is used for carrying the valve core on the support C1, carries guide rail C3, is equipped with on the support C1 to be used for hanging the material piece C4 of hanging establishing the valve core, and the lower extreme of carrying guide rail C3 links to each other with material piece C4, is equipped with manipulator C5 and manipulator C5 on the support C1 can be with hanging the valve core centre gripping on the material piece C4 and carry to on the frock 3 of carousel 2.

The manipulator C5 includes the translation seat C5a and the translation cylinder C5b that drives translation seat C5a reciprocating horizontal migration that set up on the support, be equipped with lifter plate C5C and the lift cylinder C5d that drives lifter plate C5C reciprocal lift on translation seat C5a, be equipped with on the piston rod of lift cylinder C5d and press from both sides and indicate cylinder C5e, the cylinder body that presss from both sides and indicates cylinder C5e links firmly with the piston rod of lift cylinder C5d mutually.

The rack 1 is fixedly connected with a mounting disc 5, the mounting disc 5 is located on the upper side of the first rotary table 2, a valve core sleeve righting manipulator 6 is arranged on the mounting disc 5, the valve core sleeve righting manipulator 6 is located on one side of the valve core feeding mechanism C, and the valve core sleeve righting manipulator 6 can clamp a valve core sleeve 4b located in the first tool 3 and enable the valve core sleeve 4b to keep a vertical state.

Valve body feed mechanism D, including setting up base D1 on frame 1 and setting up and be equipped with on base D1 and rotate and supply the vertical male positioning seat D2 of valve body 4a, be equipped with on the positioning seat D2 and beat sign indicating number mechanism D3, be equipped with manipulator D4 on the base D1, manipulator D4 can be with being located the valve body 4a centre gripping on the charging tray and carry to positioning seat D2 on, and manipulator D4 can carry the work of the valve body 4a that is located on positioning seat D2 to carousel one 2. Beat and be equipped with on the base D1 of sign indicating number mechanism D3 and lean on wheelset D3a and drive and lean on the translation cylinder D3b of the reciprocal horizontal longitudinal movement of wheelset D3a, be equipped with the two D3D of the translation cylinder that beat sign indicating number seat D3c and the drive of the reciprocal horizontal lateral movement of sign indicating number seat D3c of level setting on the base D1, beat and link firmly the bar code piece D3e of horizontal setting on the sign indicating number seat D3 c. And a valve body righting manipulator 7 is arranged on the mounting disc 5, the valve body righting manipulator 7 is positioned on one side of the valve body feeding mechanism D, and the valve body 4a is sleeved with the righting manipulator and can clamp the valve body 4a positioned on the first tool 3 and enable the valve body 4a to keep a vertical state. Preferably, the coding mechanism D3 is a laser coding mechanism.

Locking lid tightening mechanism E includes support E1, support E1 is equipped with pressure cylinder E2 and can drives the reciprocal lift cylinder E3 that goes up and down of pressure cylinder E2, pressure cylinder E2 is located the upside of carousel, be equipped with on the support E1 and can rotate rotary rod E4 and drive rotary rod E4 pivoted servo motor E5, be equipped with two E6 of lift cylinder that can drive rotary rod E4 reciprocal lift on the support E1, rotary rod E4 is located the downside of carousel and rotary rod E4 and the coaxial setting of pressure cylinder E2. A piston rod of the lifting cylinder I E3 is fixedly connected with a guide cylinder E7, a pressing cylinder E2 is arranged in the guide cylinder E7, a spring E8 is arranged in the guide cylinder E7, and two ends of a spring E8 abut against the guide cylinder E7 and the pressing cylinder E2 respectively. The lower end of the guide cylinder E7 is fixedly connected with a slip-off preventing ring E9, the outer side wall of the pressing cylinder E2 is provided with a shoulder E2a, the pressing cylinder E2 penetrates through the slip-off preventing ring E9, and the shoulder E2a can abut against the inner end face of the slip-off preventing ring E9.

The support E1 is provided with a lifting seat E10 capable of lifting in a reciprocating mode, a shell of the servo motor E5 is fixedly connected to the lifting seat E10, and a piston rod of the lifting cylinder II E6 is fixedly connected with the lifting seat E10. The support E1 is fixedly connected with a vertically arranged guide rail E11, the lifting seat E10 is provided with a slide block E12, and the guide rail E11 is embedded in a slide groove of the slide block E12. The lower end of the pressing cylinder E2 is fixedly connected with an anti-rotation washer E13, and the upper end face of the anti-rotation washer E13 protrudes out of the lower end face of the pressing cylinder E2.

Rubber ring assembly devices F include support F1 that sets up on frame 1, be used for carrying sealed vibrating disc F2 and the delivery track F3 of filling gasket, be equipped with on support F1 and put material F4 and put material F4 and have and put silo F4a, put one side of silo F4a and be linked together with the exit end of delivery track F3, it is equipped with vertical discharge gate F4b on the silo F4a to put, the upper end of discharge gate F4b has the guide part F4d of taper hole form, the upper end diameter of guide part F4d is greater than its lower extreme diameter, the lower extreme of putting material F4 has spacing recess F4c and spacing recess F4c and discharge gate F4b coaxial arrangement.

The upside of guide part F4d is equipped with striker plate F5 and the translation cylinder F10 that drives striker plate F5 reciprocating horizontal migration that the level set up, translation cylinder F10 can drive striker plate F5 shutoff discharge gate F4b, vertically on the support F1 be equipped with depression bar F6 and drive the reciprocal lift cylinder F11 that goes up and down of depression bar F6, be equipped with kicking block F7 and drive the reciprocal lift cylinder two F12 that goes up and down of kicking block F7 on the support F1, the cross-section of the upper end of kicking block F7 is ring shape, kicking block F7, discharge gate F4b and the coaxial setting of depression bar F6 and kicking block F7 are located the downside of depression bar F6.

The pressure lever F6 is cylindrical, the guide rod 8 penetrates through the middle of the pressure lever F6, the guide rod 8 and the pressure lever F6 are coaxially arranged, and the lower end of the guide rod 8 extends out of the lower end of the pressure lever F6. A spring F9 is arranged in the pressure lever F6, and two ends of the spring F9 respectively abut against the pressure lever F6 and the guide rod 8. The lower end of the guide rod 8 is provided with a conical surface F8a, the upper end of the guide rod 8 is provided with an annular convex body F8b, the inner side wall of the pressure rod F6 is provided with a shoulder F6a, and the annular convex body F8b can abut against the shoulder F6 a.

One side of carousel 2 is equipped with detection mechanism FG, and detection mechanism FG is located the next station that moves material manipulator 13, and detection mechanism FG includes that the cylinder body is vertical to be linked firmly detection cylinder FG1 and detection piece FG2 on mounting disc 5, and detection cylinder FG1 can drive and detect a3 reciprocal lifts of frock that detection piece FG2 is located detection cylinder FG1 one side relatively.

The first sealing detection mechanism G comprises a support G1, an upper cylinder G2, a lower cylinder G3 and an air inlet seat G4, a first lifting cylinder G8 capable of driving the upper cylinder G2 to reciprocate is arranged on the support G1, a sealed detection cavity G5 can be formed by the cavity of the upper cylinder G2 and the cavity of the lower cylinder G3, the cavity of the lower cylinder G3 is used for placing a liquefied petroleum gas cylinder valve 4, the lower cylinder G3 is a second tool 8a vertically penetrating through a workbench, the lower end of the lower cylinder G3 is provided with an air inlet G3a communicated with the cavity of the lower cylinder G3, the upper cylinder G2 and the air inlet seat G4 are coaxially arranged, a second lifting cylinder G10 capable of driving the air inlet seat G4 to reciprocate is arranged on the support G1, a G sealing gasket 14 and a sealing gasket G14 are arranged at the upper end of the air inlet seat G4 to abut against the lower end of the lower cylinder G3. The second lifting cylinder G10 can drive the air inlet seat G4 to ascend so that the air inlet seat G4 is communicated with an air inlet G3a of the lower cylinder G3, a plug G6 is arranged in the upper cylinder G2, a spring G9 is arranged between the plug G6 and the upper cylinder G2, and two ends of the spring G9 abut against the plug G6 and the upper cylinder G2 respectively.

The first lifting cylinder G8 can drive the upper cylinder G2 to move downwards and abut against the lower cylinder G3, the plug G6 abuts against the upper end of the valve body 4a of the liquefied petroleum gas cylinder valve 4 located in the cavity of the lower cylinder G3, the upper cylinder G2 is provided with a leak detector G7, the detection end of the leak detector G7 is communicated with the cavity of the upper cylinder G2, the upper cylinder G2 is fixedly connected with a pressure release valve G13, and the pressure release valve G13 is communicated with the cavity of the upper cylinder G2.

The cavity of lower barrel G3 is coaxial to be equipped with the attach fitting G15, the lateral wall of attach fitting G15 is equipped with annular boss G15a, the middle part of attach fitting G15 is equipped with and runs through access G15b, the outside cover of attach fitting G15 is established sealing washer G16, sealing washer two G17 and sealing washer three G18 have been inlayed respectively to the upper and lower both ends face of annular boss G15a, sealing washer one G16 can be extruded in the inside wall of valve body 4a, sealing washer two G17 can be extruded in the lower terminal surface of valve body 4a, sealing washer three G18 can be extruded in the inside wall of barrel G3's cavity down. The upper end surface of the lower cylinder G3 is provided with a seal ring G21, and the lower end surface of the upper cylinder G2 can abut against the seal ring G21.

The upper end of the upper barrel G2 is fixedly connected with a mounting seat, the upper end of the plug G6 is coaxially provided with a guide pillar part G6a, the upper end of the guide pillar part G6a penetrates through the mounting seat, the outer side of the guide pillar part G6a is provided with a clamping ring, and the clamping ring can abut against the mounting seat.

Preferably, the two 8a three tools on the second 8 turntable are in one group, the two 8 one sides of the second turntable are provided with three groups of sealing detection mechanisms, the first three groups of sealing detection mechanisms are G, the third three groups of sealing detection mechanisms are H, the corresponding low-pressure sealing detection and high-pressure sealing detection can be carried out on the three liquefied petroleum gas cylinder valves at the same time, and the detection efficiency is high.

The locking cover punching mechanism I comprises a support I1, a backrest I2 is arranged on the support I1, a riveter I4 with a rivet head arranged upwards and a lifting cylinder I3 driving the riveter I4 to lift in a reciprocating mode are arranged on the support I1, and the backrest I2 and the riveter I4 are respectively located on the upper side and the lower side of the third rotary table 9. Alternatively, the backer I2 is attached to the bracket I1.

Deposit pipe feed mechanism J includes support J1 and sets up vibration dish J2 and the delivery track J3 on support J1, be equipped with the flitch J4 of putting that the level set up on support J1, be equipped with feeding frame J5 on putting flitch J4, so one side of feeding frame J5 have the pan feeding mouth, feeding frame J5 is equipped with the discharge gate of vertical setting, be equipped with the feeding cylinder J6 that drives feeding frame J5 reciprocating translation on the support J1, the downside of putting flitch J4 is equipped with translation seat 493J 7 and drives translation seat J7 horizontal migration's translation cylinder J8, vertically be equipped with the ascending lift cylinder J10 that pushes away feed cylinder J9 of tube mouth and drive push away feed cylinder J9 reciprocating lift on the translation seat J7, translation cylinder J8 can drive translation seat J7 and move to the downside of three 9a of frock, be equipped with material stopping block J11 and the material stopping cylinder J12 that drives material stopping block J11 and remove on support J1.

The machine frame 1 is provided with a blanking mechanical arm 10 and a material tray II 12, the blanking mechanical arm 10 is positioned on one side of the turntable III 9, and the blanking mechanical arm 10 can clamp and convey the liquefied petroleum gas cylinder valve 4 assembled with the deposition pipe 4g on the turntable III 9 to the material tray II 12.

The assembling process of the liquefied petroleum gas cylinder valve assembling machine is as follows:

step one, locking cover feeding

The first rotating disc 2 drives the first tool 3 to rotate to one side of a locking cover feeding mechanism A, so that a mandril A7, a discharge port A3b and a mandril 3b2 of a rotating column 3b of the first tool 3 are coaxially arranged, the locking cover 4e is conveyed to a material placing frame A3 through a vibrating disc A1 and a conveying rail A4, a material pushing plate A9 is pushed by a translation cylinder A10 to push the locking cover 4e into a discharge port A3b and extrude a spring A12, a lifting cylinder A8 drives a mandril A7 to move downwards so that the mandril A7 penetrates through a middle hole 4e1 of the locking cover 4e, then a translation cylinder A6 drives a blocking plate A5 to move backwards so that a discharge port A3b is opened, a lifting cylinder A8 drives the mandril A7 to move downwards so that the locking cover 4e is pushed onto a positioning cylinder 3a of the first tool 3 and the mandril A2 penetrates through the locking cover 4e, and meanwhile a raised head 3b4 of the rotating column 3b penetrates through a.

Step two, assembling and feeding the spring and the valve core sleeve

The first rotary table 2 drives the first tool 3 to rotate to the assembly feeding mechanism B of the spring and the valve core sleeve, the valve core sleeve 4B is conveyed to the first material placing groove B6a of the first material placing part B6 through the first vibration disc B2 and the first conveying guide rail B3, the spring 4c is conveyed to the second material placing part B7 through the second vibration disc B4 and the second conveying guide rail B5 and is located in the feeding groove B11a of the feeding block B11, and when the feeding block B11 pushes the spring 4c, the inner side wall of the feeding block B11 can block the subsequent spring 4c of the second conveying guide rail B5 from sliding in. Then the sensor B13 senses the spring 4c in the feeding trough B11a and sends a signal to the control system, the control system controls the feeding cylinder B12 to drive the feeding block B11 to move so as to push the spring 4c in the feeding trough B11a to the spring slide B8, the spring 4c is conveyed into the slide B8a of the spring slide B8 through the feeding port B8B, the valve core sleeve 4B clamped in the first material holding trough B6a is clamped by the manipulator B10 and the opening of the valve core sleeve 4B is upward, then the valve core sleeve 4B is conveyed to the lower end of the communicating pipe B9, the air inlet B8c of the spring slide B8 is filled with high-pressure air to blow the spring 4c into the communicating pipe B9 along the slide B8a, and at the feeding port B8B of the slide B8a through the air blowing channel B11B, so that the spring 4c can smoothly move on the slide B8a to blow the valve core sleeve 9 at the lower end of the slide B8B 9, and then the manipulator B10 and the valve core sleeve 4B provided with the spring 4c are conveyed to the positioning cylinder 3a of the tool I3, the mandril 3B2 penetrates through the valve core sleeve 4B, and the lower end of the valve core sleeve 4B abuts against the locking cover 4 e.

Step three, valve core feeding

The first turntable 2 drives the first tool 3 to rotate to the valve core feeding mechanism C, the valve core is conveyed to the hanging part C4 through the vibration disc C2 and the conveying guide rail C3, the valve core sleeve 4b on the first tool 3 is clamped by the valve core sleeve righting manipulator 6 to keep the valve core sleeve 4b in a vertical state, the valve core on the hanging part C4 is clamped and conveyed to the first tool 3 of the first turntable 2 through the manipulator C5, and the valve core is inserted into the valve core sleeve 4 b.

Step four, feeding the valve body

Carousel 2 drives frock 3 and changes to valve body feed mechanism D, valve body 4a on manipulator D4 centre gripping charging tray 11 and insert valve body 4a on positioning seat D2, a translation cylinder D3b promotes to support and leans on wheelset D3a to support on valve body 4a, two D3D drive of translation cylinder beat sign indicating number seat D3c translation, make bar code block D3e press the lateral wall of valve body 4a and drive valve body 4a and rotate, the realization is to beating the sign indicating number of the lateral wall of valve body 4a, then manipulator D4 will be located the valve body 4a centre gripping on positioning seat D2 and carry to frock 3 on, the lower extreme that makes valve body 4a inserts the upper end of a positioning cylinder 3a, locking lid 4e this moment, case 4b, spring 4c and the coaxial downside that is located valve body 4a of case. Then the second righting translation cylinder 7b drives the second righting clamping finger cylinder 7a to extend out, and the second righting clamping finger cylinder 7a clamps the valve body 4a, so that the valve body 4a is ensured to be in a vertical state.

Step five, tightening the locking cover

The first turntable 2 drives the first tooling 3 to rotate to the locking cover screwing mechanism E, and at the moment, the positioning cylinder 3a of the first tooling 3, the pressing cylinder E2 and the rotating rod E4 are coaxially arranged. When the locking cover 4E16a is screwed down, the lifting cylinder one E3 drives the pressing cylinder E2 to descend so that the anti-rotation washer E13 presses the upper end of the valve body 4a, then the lifting cylinder two E6 drives the lifting seat E10 and the servo motor E5 to ascend, so that the upper end of the rotating rod E4 is inserted into the strip-shaped groove at the lower end of the rotating column 3b, the rotating column 3b and the locking cover 4E arranged on the rotating column 3b are pushed to ascend to the threaded hole of the valve body 4a, the servo motor E5 drives the rotating rod E4 to rotate, the rotating rod E4 drives the rotating column 3b15b to rotate to screw the locking cover 4E into the valve body 4a, the servo motor E5 is provided with a torque sensor, whether the locking cover 4E is screwed into the valve body 4a or not can be sensed, and the working reliability. Adopt this locking lid to screw up mechanism E, have and screw up the advantage that the effect is better, the equipment effect is higher and the reliable operation.

Step six, assembling the rubber ring

The first turntable 2 drives the first tooling 3 to rotate to the rubber ring assembling mechanism F, and at the moment, the positioning cylinder 3a of the first tooling 3 is coaxially arranged with the pressure rod F6 and the top block F7. The translation cylinder F10 drives the material baffle F5 to block a guide part F4d on the material placing part F4, a rubber ring 4F slides into a material placing groove F4a of the material placing part F4 along a conveying rail F3, at the moment, the lifting cylinder II F12 drives the jacking block F7 to ascend so as to enable the positioning cylinder 3a13a to ascend, the upper end of the valve body 4a abuts against a limit groove F4c of the material placing part F4, the lifting cylinder I F11 drives the pressure rod F11 and the guide rod F11 to move downwards, the guide rod F11 penetrates through the rubber ring 4F in the material placing groove F4 11, the lower end of the guide rod F11 abuts against the material baffle F11, the translation cylinder F11 drives the material baffle F11 to separate from the guide part F4 11, the spring F11 pushes the guide rod F11 to move downwards, and the lifting cylinder I11 pushes the pressure rod F11 and the guide rod F11 to enable the rubber ring F4F to pass through the guide part F4F 11 and be loaded into the annular discharge hole 364F 4F and move downwards to the annular discharge hole 36.

Seventhly, moving the materials

The first rotary table 2 drives the first tooling 3 to be transferred to one side of the first material transferring mechanical arm 13, and the first material transferring mechanical arm 13 clamps the liquefied petroleum gas cylinder valve 4 on the first tooling 3.

Eighth step, rejecting waste

When the first 2 turntable drives the first 3 tool to rotate to the FG position of the detection mechanism, the detection cylinder FG1 drives the detection block FG2 to move downwards to abut against the first 3 tool.

If no part of the liquefied petroleum gas cylinder valve 4 is left on the first tooling 3, the detection block FG2 senses the height difference to judge that the liquefied petroleum gas cylinder valve 4 clamped by the first material moving manipulator 13 at the previous station is successfully assembled, and sends a detected signal to the controller, and the controller controls the first material moving manipulator 13 in the seventh step to transfer the successfully assembled liquefied petroleum gas cylinder to the second tooling 8a on the second turntable 8.

If the tooling I3 is provided with the left part of the liquefied petroleum gas cylinder valve 4, the detection block FG2 senses the height difference to judge that the liquefied petroleum gas cylinder valve 4 clamped by the material moving manipulator I13 at the previous station is not assembled successfully, and sends a detected signal to the controller, and the controller controls the material moving manipulator I13 in the seventh step to remove the liquefied petroleum gas cylinder valve 4 which is not assembled successfully.

Ninth step, tightness low-pressure detection

Two 8 drive two 8a of frock to transfer to leakproofness detection mechanism G department, two 8a of frock are the lower barrel G3 that sets up on two 8 of carousel, two 8 drive down barrel G3 and change the downside of last barrel G2, the vertical setting of liquefied petroleum gas bottle valve 4 that awaits measuring is in lower barrel G3, two G10 of lift cylinder drive air inlet seat G4 moves up and makes the lower extreme of lower barrel G3 support and lean on the sealed pad G14 of air inlet seat G4, rethread lift cylinder G8 drives upper barrel G2 and end cap G6 and moves to the downside, make end cap G6 shutoff liquefied petroleum gas bottle valve 4's valve body 4a upper end, the lower extreme of upper barrel G2 supports and leans on the sealing washer G21 of lower barrel G3, the upper end of intercommunication joint G15 in the cavity of lower barrel G3 enters into the lower extreme of valve body 4a and extrudees sealing washer G16 and forms sealedly, sealing washer two G17 can extrude in the lower terminal surface of valve body G18, three sealing washer can extrude barrel 3 in lower barrel 9634. The low-pressure compressed gas is introduced into the gas inlet seat G4 and enters the valve body 4a of the liquefied petroleum gas cylinder valve 4 through the gas inlet G3a of the lower cylinder G3 and the communication channel G15b of the communication connector G15, when the liquefied petroleum gas cylinder valve 4 leaks, the compressed gas enters the detection cavity G5, the leak detector G7 detects the compressed gas in the detection cavity G5, the detection efficiency is high, the detection is reliable, and the leak detector G7 can be replaced by a pressure sensor. When the sealing performance of the liquefied petroleum gas cylinder valve 4 does not meet the requirement, the pressure relief valve G13 can avoid the overlarge pressure of the cavity of the upper cylinder G2 and the cavity of the lower cylinder G3, and the safety is improved.

Step ten, detecting the sealing performance under high pressure

When the second rotary table 8 drives the second tool 8a to rotate to the sealing detection mechanism H, high-pressure detection is carried out on the liquefied petroleum gas cylinder valve 4, the detection steps are consistent with the ninth step, and the difference lies in that low-pressure compressed gas is introduced into the gas inlet seat of the sealing detection mechanism H, and enters the valve body 4a of the liquefied petroleum gas cylinder valve 4 through the gas inlet of the lower cylinder and the communication channel of the communication joint.

Eleven-step and secondary material transfer

When the second rotary table 8 drives the second tool 8a to be transferred to the second material transferring mechanical arm 14, the second material transferring mechanical arm 14 clamps and removes the unqualified liquefied petroleum gas cylinder valve 4 on the second rotary table 8, and clamps and transfers the qualified liquefied petroleum gas cylinder valve 4 on the second rotary table 8 to the third tool 9a of the third rotary table 9.

Twelfth, the locking cover is punched tightly

The third rotary table 9 drives the third tool 9a to rotate to the position of the locking cover punching mechanism I, the riveter I4 and the third tool 9a are coaxially arranged at the moment, the lifting cylinder I3 drives the riveter I4 to ascend, the riveter I4 pushes the liquefied petroleum gas cylinder valve 4 in the third tool 9a to the backer I2, and the riveter I4 works to punch and deform the locking cover 4e to enable the locking cover 4e to be fixedly connected with the valve body 4 a.

Thirteen steps of feeding the deposition tube

The three 9 rotating discs drive the three 9a tools to turn to a J position of a feeding mechanism of the deposition tube, the deposition tube 4g is conveyed to a material placing plate J4 through a vibrating disc J2 and a conveying rail J3 and is located at a material inlet of a material conveying frame J5, the material conveying cylinder J6 drives the material conveying frame J5 to move to the upper end of a material pushing cylinder J9, the deposition tube 4g located in the material conveying frame J5 falls into the material pushing cylinder J9, the translation cylinder J8 drives a translation seat J7 and a material pushing cylinder J9 to translate to the lower side of the three 9a tools, the material stopping cylinder J12 drives a material stopping block J11 to the upper end of the three 9a tools to stop the upper end of a liquefied petroleum gas cylinder valve, the material lifting cylinder J10 drives the material pushing cylinder J9 to ascend so that the deposition tube 4g located in the material pushing cylinder J9 is pushed to the lower end of the liquefied petroleum gas cylinder valve 4 in the three tools, and the deposition tube 4g tools.

Fourteen steps of blanking

The third rotary table 9 drives the third tooling 9a to rotate to one side of the blanking manipulator 10, and the blanking manipulator 10 can clamp and convey the liquefied petroleum gas cylinder valve 4 assembled with the deposition pipe 4g on the third rotary table 9 to the second material tray 12.

The specific structure of the blanking manipulator 10, the first material moving manipulator 13 and the second material moving manipulator 14 in the liquefied petroleum gas cylinder valve assembling machine can refer to the manipulator B10 in the spring and valve core sleeve assembling and feeding mechanism B, and can also adopt a manipulator (application number: 2018116220103) and a manipulator (application number: 2017106498349)

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The liquefied petroleum gas cylinder valve assembling machine comprises a machine frame (1) and a first rotary table (2) which is arranged on the machine frame (1) and can rotate, wherein a plurality of first tools (3) are arranged on the first rotary table (2), the first tools (3) comprise a positioning cylinder (3a) arranged on the first rotary table (2), the upper end of the positioning cylinder (3a) is vertically sleeved with a valve body (4a), the middle part of the positioning cylinder (3a) is vertically provided with a through guide hole (3a1), a rotatable rotary column (3b) is arranged in the guide hole (3a1) and can reciprocate and ascend and descend relative to the positioning cylinder (3a), the middle part of the upper end of the rotary column (3b) is provided with a convex push rod (3b2), the upper end of the rotary column (3b) is also provided with a limiting structure for limiting the rotation of a locking cover (4e), the positioning cylinder (3a) can reciprocate relative to the first rotating disc (2);

the locking cover feeding mechanism A can convey the locking cover (4e) to a top rod (3b2) of the tooling I (3);

the spring and valve core sleeve assembling and feeding mechanism B can blow the spring (4c) into the valve core sleeve (4B) and install the valve core sleeve (4B) into a positioning needle of the tooling I (3) so that the valve core sleeve (4B) and the spring I (3c) side penetrate through the ejector rod (3B 2);

the valve core feeding mechanism C can convey the valve core (4d) into the valve core sleeve (4 b);

the valve body feeding mechanism D can convey the valve body (4a) to the first tool (3) and enable the valve body (4a) to be sleeved on the outer side of the valve core sleeve (4 b);

the locking cover screwing mechanism E can screw the locking cover (4E) into the valve body (4 a);

the rubber ring assembling mechanism F can convey and assemble the rubber ring (4F) into the valve body (4 a).

2. The liquefied petroleum gas cylinder valve assembling machine according to claim 1, wherein a second rotatable turntable (8) is arranged on the frame (1), a second tool (8a) is arranged on the second turntable (8), a first tightness detection mechanism G is arranged on one side of the second turntable (8), a first material moving manipulator (13) is arranged on one side of the first turntable (2), and the first material moving manipulator (13) can clamp and move the liquefied petroleum gas cylinder valve (4) on the first turntable (2) to the second tool (8a) of the second turntable (8).

3. The liquefied petroleum gas cylinder valve assembling machine according to claim 2, wherein said machine frame (1) is provided with a third rotary table (9), a third tool (9a) is arranged on the third rotary table (9), a second material moving manipulator (14) is arranged on the rack (1), the second material moving manipulator (14) can clamp the liquefied petroleum gas cylinder valve (4) on the second rotary table (8) and convey the liquefied petroleum gas cylinder valve to the third tool (9a) of the third rotary table (9), one side of the third rotating disc (9) is sequentially provided with a locking cover punching mechanism I and a deposition tube feeding mechanism J, the locking cover punching mechanism I can punch the edge of the locking cover (4e) and fixedly connect the locking cover (4e) with the valve body (4a), the deposition tube feeding mechanism J can load the deposition tube (4g) into the lower end of the valve body (4 a).

4. The liquefied petroleum gas cylinder valve assembling machine according to claim 1, 2 or 3, wherein the locking cap feeding mechanism a comprises a vibration disk a1 and a support a2, the support a2 is provided with a material placing rack A3, the material placing rack A3 is provided with a material feeding chute A3a and a material outlet A3b, the vibration disk a1 is connected with a conveying track A4, the lower end of the conveying track A4 is communicated with the material feeding chute A3a, the material outlet A3b is provided with a blocking plate A5 and a translation cylinder A6 for driving the blocking plate A5 to translate reciprocally, the support a2 is provided with a push rod a7 and a lifting cylinder A8 for driving the push rod a7 to lift reciprocally, the push rod A8 is located at the upper side of the material outlet A3 8, the material placing rack A8 is provided with a material pushing plate A8 and a translation cylinder A8 for driving the push rod A8 to translate, and the material pushing plate A8 is located at one side of the material outlet of the material pushing plate 8 A8, the second translation cylinder A10 drives the material pushing plate A9 to move so as to push the locking cover (4e) on one side of the material pushing plate A9 to the material outlet A3 b.

5. The liquefied petroleum gas cylinder valve assembling machine according to claim 4, wherein a piston rod of the lift cylinder A8 is fixedly connected with a guide cylinder A11, the ejector rod A7 is arranged in the guide cylinder A11, the lower end of the ejector rod A7 extends out of the lower end of the guide cylinder A11, a spring A12 is arranged in the guide cylinder A11, and two ends of the spring A12 respectively abut against the upper end of the ejector rod A7 and the inner top surface of the guide cylinder A11.

6. The liquefied petroleum gas cylinder valve assembling machine according to claim 1, 2 or 3, wherein the spring and spool sleeve assembling and feeding mechanism B comprises a support B1, a first vibration disk B2 for conveying the spool sleeve (4B), a first conveying guide rail B3, a second vibration disk B4 for conveying the spring (4c) and a second conveying guide rail B5 are arranged on the support B1, a first material placing member B6 for placing the spool sleeve (4B) is arranged on the support B1, a first material placing groove B6a with an upward notch is arranged on the upper side of the first material placing member B6, the first material placing groove B6a is connected with the discharge end of the first conveying guide rail B3, the sleeve (4B) on the first spool conveying guide rail B3 can enter the first material placing groove B6a, a second material placing member B638 is arranged on the support B1, a second material placing member B6866 is arranged on the support B6342, and a spring slide carriage 3527 for feeding the spring (B368) through a spring B8 c), the upper side of the slideway B8a is provided with a material inlet B8B, the spring (4c) can enter the slideway B8a through a material inlet B8B, the rear end of the slideway B8a is provided with a gas inlet B8c, the front end of the slideway B8a is communicated with a communicating pipe B9, the lower end of the communicating pipe B9 is arranged downwards, the bracket B1 is provided with a manipulator B10, the manipulator B10 can clamp a valve core sleeve (4B) in a material placing groove B6a and enable an opening of the valve core sleeve (4B) to face upwards, then the valve core sleeve (4B) is conveyed to the lower end of the communicating pipe B9, and the gas inlet B8c of the slideway B8a enters the compressed gas blowing spring (4c) and enters the valve core sleeve (4B) along the communicating pipe B9.

7. The liquefied petroleum gas cylinder valve assembling machine according to claim 6, wherein a feeding block B11 and a feeding cylinder B12 for driving the feeding block B11 to reciprocate are arranged on the material placing member B7, a feeding groove B11a with a downward notch is formed in the lower end face of the feeding block B11, the feeding block B11 is located on one side of the slide way B8a, the feeding cylinder B12 can push the feeding block B11 to feed a spring (4c) located on the material placing member B7 into the slide way B8a, an air blowing channel B11B is arranged on the upper side of the outer end of the feeding block B11, an outlet of the air blowing channel B11B is vertically arranged downward, and an outlet of the air blowing channel B11B can be communicated with the feeding hole B8B of the slide way B8 a.

8. The liquefied petroleum gas cylinder valve assembling machine according to claim 1, 2 or 3, wherein the valve core feeding mechanism C comprises a bracket C1, a vibration disc C2 for conveying the valve core (4d) and a conveying guide rail C3 are arranged on the bracket C1, a material hanging part C4 for hanging the valve core (4d) is arranged on the bracket C1, the lower end of the conveying guide rail C3 is connected with the material hanging part C4, a manipulator C5 is arranged on the bracket C1, and the manipulator C5 can clamp the valve core (4d) on the material hanging part C4 and convey the valve core (4d) to the tool I (3) of the turntable I (2).

9. The liquefied petroleum gas cylinder valve assembling machine according to claim 8, wherein the rack (1) is fixedly connected with a mounting plate (5), the mounting plate (5) is located on the upper side of the first rotary table (2), the mounting plate (5) is provided with a valve core sleeve centering manipulator (6), the valve core sleeve centering manipulator (6) is located on one side of the valve core feeding mechanism C, and the valve core sleeve centering manipulator (6) can clamp the valve core sleeve (4b) located in the first tooling (3) and keep the valve core sleeve (4b) in a vertical state.

10. The liquefied petroleum gas cylinder valve assembling machine according to claim 1, 2 or 3, wherein the valve body feeding mechanism D comprises a base D1 and a positioning seat D2 which is arranged on the base D1 and can rotate and allow the valve body (4a) to be vertically inserted, a coding mechanism D3 is arranged on the positioning seat D2, a manipulator D4 is arranged on the base D1, the manipulator D4 can clamp and convey the valve body (4a) on the tray to the positioning seat D2, and the manipulator D4 can convey the valve body (4a) on the positioning seat D2 to the working of the turntable.

11. The liquefied petroleum gas cylinder valve assembling machine according to claim 10, wherein the coding mechanism D3 comprises a supporting wheel set D3a provided on the base D1 and a first translating cylinder D3b driving the supporting wheel set D3a to reciprocate horizontally and longitudinally, the base D1 is provided with a horizontally arranged coding seat D3c and a second translating cylinder D3D driving the coding seat D3c to reciprocate horizontally and transversely, and the coding seat D3c is fixedly connected with a horizontally and transversely arranged bar-shaped code block D3 e.

12. The liquefied petroleum gas cylinder valve assembling machine according to claim 9, wherein a valve body centering manipulator (7) is arranged on the mounting plate (5), and the valve body centering manipulator (7) can clamp the valve body (4a) on the first tool (3) and keep the valve body (4a) in a vertical state.

13. The liquefied petroleum gas cylinder valve assembling machine according to claim 1, 2 or 3, wherein the locking cap screwing mechanism E comprises a bracket E1, the bracket E1 is provided with a pressing cylinder E2 and a lifting cylinder E3 capable of driving the pressing cylinder E2 to reciprocate, the pressing cylinder E2 is located on the upper side of the turntable, the bracket E1 is provided with a rotatable rotating rod E4 and a servo motor E5 capable of driving the rotating rod E4 to rotate, the bracket E1 is provided with a lifting cylinder two E6 capable of driving the rotating rod E4 to reciprocate, the rotating rod E4 is located on the lower side of the turntable, the rotating rod E4 and the pressing cylinder E2 are coaxially arranged, a guide cylinder E7 is fixedly connected to a piston rod of the lifting cylinder E3, the pressing cylinder E2 is arranged in the guide cylinder E7, a spring E8 is arranged in the guide cylinder E7, and two ends of the spring E8 abut against the guide cylinder E2 and the pressing cylinder E7 respectively On the tight tube E2, the lower end of the tight tube E2 is fixedly connected with an anti-rotation washer E13, and the upper end face of the anti-rotation washer E13 protrudes out of the lower end face of the tight tube E2.

14. The liquefied petroleum gas cylinder valve assembling machine according to claim 13, wherein a lower end of the guide cylinder E7 is fixedly connected with a disengagement preventing ring E9, an outer side wall of the pressing cylinder E2 is provided with a shoulder E2a, the pressing cylinder E2 penetrates through the disengagement preventing ring E9, and the shoulder E2a can abut against an inner end face of the disengagement preventing ring E9.

15. The liquefied petroleum gas cylinder valve assembling machine according to claim 13, wherein a lifting seat E10 capable of lifting and lowering back and forth is disposed on the bracket E1, a housing of the servo motor E5 is fixedly connected to the lifting seat E10, and a piston rod of the second lifting cylinder E6 is fixedly connected to the lifting seat E10.

16. A liquefied petroleum gas cylinder valve assembling machine according to claim 1, 2 or 3, wherein said rubber ring assembling mechanism F includes a bracket F1, a vibration disk F2 for transporting a sealing gasket, and a transporting track F3, said bracket F1 is provided with a material placing member F4 and said material placing member F4 is provided with a material placing groove F4a, one side of said material placing groove F4a is communicated with an outlet end of said transporting track F3, said material placing groove F4a is provided with a vertically arranged material outlet F4b, an upper end of said material outlet F4b is provided with a tapered hole-shaped guide portion F4d, an upper end diameter of said guide portion F4d is larger than a lower end diameter thereof, an upper side of said guide portion F4d is provided with a horizontally arranged material baffle F5 and a translation cylinder F10 for driving said material baffle F5 to reciprocate and horizontally, said translation cylinder F10 can drive said material baffle F5 to block said material outlet F4b, support F1 on vertically be equipped with depression bar F6 and drive the reciprocal lift cylinder F11 that goes up and down of depression bar F6, support F1 on be equipped with kicking block F7 and drive the two F12 of lift cylinder that kicking block F7 goes up and down reciprocally, kicking block F7, discharge gate F4b and the coaxial setting of depression bar F6 just kicking block F7 be located the downside of depression bar F6.

17. The liquefied petroleum gas cylinder valve assembling machine according to claim 16, wherein the lower end of the placing member F4 has a limiting groove F4c and the limiting groove F4c is coaxially disposed with the discharge port F4 b.

18. The liquefied petroleum gas cylinder valve assembling machine according to claim 16, wherein the pressing rod F6 is cylindrical, a guide rod 8 is inserted through a middle portion of the pressing rod F6, the guide rod 8 and the pressing rod F6 are coaxially arranged, a lower end of the guide rod 8 extends out of a lower end of the pressing rod F6, a spring F9 is arranged in the pressing rod F6, two ends of the spring F9 respectively abut against the pressing rod F6 and the guide rod 8, and a lower end of the guide rod 8 has a conical surface F8 a.

19. The liquefied petroleum gas cylinder valve assembling machine according to claim 18, wherein said guide rod 8 has an annular projection F8b at its upper end, the inner side wall of said pressing rod F6 has a shoulder F6a and said annular projection F8b can abut against said shoulder F6 a.

20. The liquefied petroleum gas cylinder valve assembling machine according to claim 2 or 3, wherein a detection mechanism FG is arranged on one side of the first rotating disc (2), the detection mechanism FG is located at the next station of the first material moving manipulator (13), the detection mechanism FG comprises a detection cylinder FG1 and a detection block FG2, the cylinder body is vertically and fixedly connected to the rack (1), and the detection cylinder FG1 can drive the detection block FG2 to reciprocate relative to the first tooling (3) located on one side of the detection cylinder FG 1.

21. The liquefied petroleum gas cylinder valve assembling machine according to claim 2 or 3, wherein the first sealing detection mechanism G comprises a workbench, a bracket G1, an upper cylinder G2, a lower cylinder G3 and an air inlet seat G4, the bracket G1 is provided with a first lifting cylinder G8 capable of driving the upper cylinder G2 to reciprocate, a cavity of the upper cylinder G2 and a cavity of the lower cylinder G3 can form a sealed detection cavity G5, the cavity of the lower cylinder G3 is used for placing the liquefied petroleum gas cylinder valve (4), the lower cylinder G3 vertically penetrates through a second tooling (8a) on the workbench, the lower end of the lower cylinder G3 is provided with a G3a communicated with the cavity of the lower cylinder G3, the upper cylinder G2 and the air inlet seat G4 are coaxially arranged, the bracket G1 is provided with a second lifting cylinder G10 for driving the lifting seat G4 to reciprocate, the two G10 of lift cylinder can drive the seat of admitting air G4 rise and make the seat of admitting air G4 with lower barrel G3's air inlet G3a be linked together, last barrel G2 in be equipped with end cap G6, a lift cylinder G8 can drive barrel G2 down move and support and lean on barrel G3 down and end cap G6 support and lean on the valve body (4a) upper end that lies in liquefied petroleum gas bottle valve (4) in the cavity of barrel G3 down, last barrel G2 on be equipped with leak detector G7, the sense terminal of leak detector G7 with last barrel G2's cavity be linked together.

22. The liquefied petroleum gas cylinder valve assembling machine according to claim 21, wherein a pressure relief valve G13 is fixedly connected to the upper cylinder G2, the pressure relief valve G13 is communicated with the cavity of the upper cylinder G2, a gasket G14 is disposed at the upper end of the air inlet seat G4, and the gasket G14 is abutted against the lower end of the lower cylinder G3.

23. The liquefied petroleum gas cylinder valve assembling machine according to claim 21, wherein a communication joint G15 is coaxially disposed in a cavity of the lower cylinder G3, an annular boss G15a is disposed on an outer side wall of the communication joint G15, a through communication channel G15b is disposed in a middle of the communication joint G15, a first seal ring G16 is sleeved on an outer side of the communication joint G15, a second seal ring G17 and a third seal ring G18 are respectively embedded on upper and lower end faces of the annular boss G15a, the first seal ring G16 can be extruded on an inner side wall of the valve body (4a), the second seal ring G17 can be extruded on a lower end face of the valve body (4a), and the third seal ring G18 can be extruded on an inner side wall of the cavity of the lower cylinder G3.

24. The liquefied petroleum gas cylinder valve assembling machine according to claim 21, wherein the lower cylinder G3 has a sealing ring G21 on an upper end surface thereof and the upper cylinder G2 has a lower end surface capable of abutting against the sealing ring G21.

25. The liquefied petroleum gas cylinder valve assembling machine according to claim 2 or 3, wherein a first sealing detection mechanism G and a second sealing detection mechanism H are sequentially arranged on one side of the second rotary disk (8) along the rotation direction of the second rotary disk (8), and the structures of the first sealing detection mechanism G and the second sealing detection mechanism H are the same.

26. The liquefied petroleum gas cylinder valve assembling machine according to claim 3, wherein the locking cap pressing mechanism I comprises a support I1, a backer I2 is fixedly connected to the support I1, a riveter I4 with a rivet head facing upwards and a lifting cylinder I3 for driving the riveter I4 to reciprocate are arranged on the support I1, and the backer I2 and the riveter I4 are respectively located at upper and lower sides of the turntable III (9).

27. The liquefied petroleum gas cylinder valve assembling machine according to claim 3, wherein the depositing pipe feeding mechanism J comprises a support J1, a vibrating disk J2 and a conveying track J3 which are arranged on a support J1, a horizontally arranged material placing plate J4 is arranged on the support J1, a material feeding frame J5 is arranged on the material placing plate J4, a material inlet is arranged on one side of the material feeding frame J5, a vertically arranged material outlet is arranged on the material feeding frame J5, a material feeding cylinder J6 for driving the material feeding frame J5 to make reciprocating translation is arranged on the support J1, a translation seat J7 and a translation cylinder J8 for driving the translation seat J7 to make horizontal movement are arranged on the lower side of the material placing plate J4, a material pushing cylinder J9 with an upward cylinder opening and a lifting cylinder J10 for driving the material pushing cylinder J9 to make reciprocating lifting and lifting are vertically arranged on the translation seat J7, and the translation seat J8 can drive the three translation seats J7 a to move to the lower side of the three material pushing cylinder J7 a (a) of the three material pushing cylinder 399 a, and a material blocking block J11 and a material blocking cylinder J12 for driving the material blocking block J11 to move are arranged on the support J1.

28. The liquefied petroleum gas cylinder valve assembling machine according to claim 3, 26 or 27, wherein a blanking manipulator (10) is disposed on the frame (1), and the blanking manipulator (10) is disposed on one side of the third rotary table (9).

29. The lpg cylinder valve assembly machine according to claim 1, wherein a first spring (3c) is disposed between the positioning cylinder (3a) and the first rotary table (2), and the first spring (3c) pushes the positioning cylinder (3a) against the first rotary table (2).

30. The liquefied petroleum gas cylinder valve assembling machine according to claim 1 or 29, wherein the limiting structure is a boss (3b4) provided at an upper end of the rotary column (3b) and the boss (3b4) is provided at one side of the ejector pin (3b2), and an upper end surface of the boss (3b4) is an inclined surface (3b5) which is obliquely provided.