Pouring plug rod control device and pouring machine thereof

Abstract

The invention discloses a pouring plug rod control device and a pouring machine thereof.The pouring plug rod control device comprises a lifting mechanism, a cantilever and a plug rod clamping mechanism, the plug rod clamping mechanism is connected with the lifting mechanism through the cantilever, and the lifting mechanism comprises a fixing base and a sliding sleeve shaft assembly; the sliding sleeve shaft assembly comprises a sliding sleeve shaft, a sliding rod base, a tensioning spring and a pushing structure used for pushing the lower end of the tensioning spring upwards. The sliding sleeve shaft is of a hollow structure and is arranged in the hollow fixing seat, the sliding rod seat and the tensioning spring are both arranged in the sliding sleeve shaft, corresponding sliding rod groove holes are formed in the fixing seat and the sliding sleeve shaft, sliding rods capable of moving up and down in the sliding rod groove holes are arranged on the sliding rod seat, and the pushing structure is arranged corresponding to the bottom of the fixing seat. And the tensioning spring is arranged between the sliding rod seat and the inner end of the pushing structure. The opening degree of the pouring nozzle is controlled accurately, and the situation that the flow of molten metal flowing out of the heat preservation furnace of the pouring machine is uncontrollable due to the too large gap of the nozzle is avoided. The plug rod can be quickly replaced and is simple and convenient to maintain.

Description

Technical Field

[0001] The invention relates to the technical field of casting, in particular to a pouring plug rod control device and a pouring machine thereof. Background Art

[0002] At present, the bottom pouring pouring machine equipment used for metal pouring in the casting equipment field realizes pouring production by clamping the graphite plug rod to contact or disconnect with the water inlet at the bottom of the insulation furnace through a cantilever end sleeve type plug rod chuck seat extending from the upper box seat fixed on the insulation furnace.

[0003] In actual production, this plug rod clamping method requires operators to manually adjust the plug rod height in the high temperature environment of the pouring machine to keep the plug rod plugging the water outlet; it is also very difficult to replace the plug rod; the contact state between the plug rod and the water outlet cannot be adjusted, and it is impossible to ensure that the plug rod and the water outlet are coaxial; in addition, due to the brittleness of the graphite plug rod, it is very easy to break under uneven force, resulting in the complete scrapping of the molten metal in the holding furnace. The above plug rod clamping method results in a short service life of the plug rod and the existence of safety risks such as molten metal leakage.

[0004] There are also clamping devices in the prior art that can adjust the position of the plug rod to prevent leakage of molten metal; but the structure is complex, the replacement of the plug rod is cumbersome, and the opening size of the water outlet is not easy to control; for example, patent CN104162655A discloses a pouring machine anti-drip plug rod mechanism, which includes a cantilever and a plug rod, a clamping ring is provided at the end of the cantilever, the middle part of the plug rod is sleeved in the clamping ring, a cylinder is provided on the cantilever, a piston is provided in the cylinder, and the piston is connected to the piston push rod; a plug rod clamping sleeve is sleeved on the top of the plug rod, the plug rod clamping sleeve is provided at the heads of two clamping plates, and a ratchet is provided on the plug rod clamping sleeve, and the ratchet is located between the two clamping plates. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a pouring plug rod control device and a pouring machine thereof, so as to achieve the purpose of more accurately controlling the size of the pouring water outlet opening.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A pouring plug rod control device comprises a lifting mechanism, a cantilever and a plug rod clamping mechanism, wherein the plug rod clamping mechanism is connected to the lifting mechanism through the cantilever, and the lifting mechanism comprises a fixed seat and a sleeve shaft assembly, wherein the sleeve shaft assembly comprises a sleeve shaft, a slide rod seat, a tensioning spring and a pushing structure for pushing up the lower end of the tensioning spring; the sleeve shaft is a hollow structure, the sleeve shaft is arranged in the hollow fixed seat, the slide rod seat and the tensioning spring are both arranged in the sleeve shaft, the fixed seat and the sleeve shaft are provided with corresponding slide rod slots, the slide rod seat is provided with a slide rod that can move up and down in the slide rod slot, the pushing structure is arranged corresponding to the bottom of the fixed seat, and the tensioning spring is arranged between the slide rod seat and the inner end of the pushing structure.

[0008] The sliding sleeve shaft is provided with a rotating sliding groove flange, and one end of the cantilever is sleeved on the sliding sleeve shaft through a cantilever hoop structure and supported by the rotating sliding groove flange.

[0009] The pushing structure includes a shift fork and a support. The shift fork is hinged to the bottom of the fixed seat through a pin shaft. The shift fork extends from the bottom of the fixed seat. The inner end of the shift fork is hingedly connected to the lower end of the support. The upper end of the support is arranged corresponding to the lower end of the tension spring.

[0010] The plug rod clamping mechanism comprises a vertical shaft and a clamping head structure for fixing the upper end of the plug rod. The end of the cantilever is provided with a detachable fixing structure. The vertical shaft is connected to the fixing structure, and the clamping head structure is connected to the lower end of the vertical shaft.

[0011] The cantilever hoop structure comprises a pair of cantilever hoop, one cantilever hoop is fixedly connected to one end of the cantilever, and the pair of cantilever hoop are connected via edge flanges and fasteners.

[0012] It also includes a tension adjustment bolt for adjusting the tensioning force of the tension spring. A screw hole is arranged in the slide bar seat. The tension adjustment bolt cooperates with the screw hole. The lower end of the tension adjustment bolt extends out from the bottom of the slide bar seat, and the extended end is arranged corresponding to the support.

[0013] The clamp structure comprises a fixed clamp and a movable clamp, wherein the fixed clamp is fixedly connected to the lower end of the vertical shaft, the movable clamp and the fixed clamp are connected via a fastener, and the upper end of the plug rod is clamped and fixed between the fixed clamp and the movable clamp.

[0014] The fixing structure comprises a pair of plug rod lifting nuts, one plug rod lifting nut is fixed at the end of the cantilever, and the edges of the pair of plug rod lifting nuts are connected by fasteners.

[0015] A crank is provided at the upper end of the vertical shaft, and a driving cylinder for driving the crank to rotate is provided on the sliding sleeve shaft or the fixed seat, and the driving end of the driving cylinder is connected to the crank through a connecting rod structure.

[0016] A pouring machine comprises a frame for carrying a heat preservation furnace and a pouring plug rod control device, wherein the fixing seat is fixed on the frame.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The pouring plug rod control device and the pouring machine thereof are reasonably designed. Accurate lifting and lowering adjustment of the plug rod is achieved through the pull rod tensioning sleeve shaft structure and the cantilever structure, so that the opening size of the pouring water nozzle can be controlled more accurately, and the flow rate of the molten metal in the pouring machine insulation furnace that is caused by excessive water nozzle gap cannot be controlled. The movable lifting nut and the movable chuck are set to achieve quick replacement of the plug rod and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following is a brief description of the contents and symbols in the drawings of this specification:

[0020] Figure 1 It is a simplified diagram of the structure of the device of the present invention.

[0021] Figure 2 for Figure 1 Schematic diagram from top view.

[0022] Figure 3 This is a cross-sectional view of the assembly of the fixing seat and the sliding sleeve shaft of the present invention.

[0023] Figure 4 It is the front view of the sliding sleeve shaft of the present invention.

[0024] Figure 5 for Figure 4 Schematic diagram from top view.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the device of the present invention.

[0026] Figure 7 It is a three-dimensional schematic diagram of the fixing seat and the sliding sleeve shaft of the present invention.

[0027] Figure 8 It is a three-dimensional schematic diagram of the sliding sleeve shaft of the present invention.

[0028] Fig. 9 It is a schematic diagram of the interior of the sliding sleeve shaft of the present invention.

[0029] Fig.10 It is a partial schematic diagram of the device of the present invention.

[0030] Fig.11 It is a schematic diagram of the device of the present invention being applied to a pouring machine.

[0031] Fig.12 It is a schematic diagram of the cooperation between the stopper rod of the present invention and the bottom water inlet of the insulation furnace.

[0032] In the figure:

[0033] 1. Fixed seat; 11. Bottom plate; 12. Slide rod slot hole Ⅰ; 13. Spacer sleeve; 2. Slide sleeve shaft; 21. Adjustment bolt connection end; 22. Slide rod slot hole Ⅱ; 23. Rotating slide flange; 24. Upper support chamber; 3. Cantilever mechanism; 31. Cantilever hoop Ⅰ; 32. Cantilever; 33. Plug rod lifting nut Ⅰ; 34. Plug rod lifting nut Ⅱ; 35. Cantilever hoop Ⅱ; 4. Plug rod adjustment mechanism; 41. Drive cylinder fixed seat; 43. Traction connecting rod; 44. Crank; 45. Connecting rod limit hoop; 5. Plug rod chuck mechanism; 51. Vertical shaft; 52. Fixed chuck; 53. Movable chuck; 54. Lifting lug; 6. Tie rod tensioning mechanism; 61. Tensioning adjusting bolt; 62. Slide rod seat; 63. Slide rod; 64. Tensioning spring; 7. Tie rod mechanism; 71. Lower support; 72. Upper support; 73. Upper support gland; 74. Connecting rod; 75. Fork; 76. Cross bar; 77. Tie rod; 8. Plug rod; 9. Casting machine; 91. Holding furnace; 911. Water inlet; 92. Trolley; 922. Trolley driving mechanism; 924. Fixed frame; 93. Cart; 932. Cart driving mechanism; 933. Cart wheel; 94. Buffer; 95. Safety platform; 96. Safety ladder; 97. Cart track. DETAILED DESCRIPTION

[0034] The specific implementation modes of the present invention will be further explained in detail below through the description of embodiments with reference to the accompanying drawings.

[0035] like Figures 1 to 12 As shown, the pouring plug rod control device is a device that can accurately control the water inlet opening and can quickly install and maintain the pouring plug rod.

[0036] The device of the present invention comprises a lifting mechanism, a cantilever and a plug rod clamping mechanism, wherein the plug rod clamping mechanism is connected to the lifting mechanism through the cantilever, and the lifting mechanism drives the cantilever and the plug rod clamping mechanism to rise and fall, thereby driving the plug rod to rise and fall, and adjusting the contact state between the plug rod and the water outlet.

[0037] The lifting mechanism includes a fixed seat and a sliding sleeve shaft assembly, the sliding sleeve shaft assembly includes a sliding sleeve shaft, a sliding rod seat, a tensioning spring and a pushing structure for pushing up the lower end of the tensioning spring; the sliding sleeve shaft is a hollow structure, the sliding sleeve shaft is arranged in the hollow fixed seat, the sliding rod seat and the tensioning spring are both arranged in the sliding sleeve shaft, the fixed seat and the sliding sleeve shaft are provided with corresponding sliding rod slots, the sliding rod seat is provided with a sliding rod that can move up and down in the sliding rod slot, the pushing structure is arranged corresponding to the bottom of the fixed seat, and the tensioning spring is arranged between the sliding rod seat and the inner end of the pushing structure.

[0038] Since the sliding sleeve shaft is restricted by the sliding rod and the tensioning spring, its up and down movement range in the fixed seat is restricted, which avoids the sliding sleeve shaft moving up and down too far, causing the gap between the plug rod and the water outlet to be too large, resulting in uncontrollable flow of molten metal in the casting machine's insulation furnace, thereby making the pouring water outlet opening size more accurately controlled.

[0039] The driving structure includes a shift fork and a support. The shift fork is hinged at the bottom of the fixed seat through a pin shaft. The shift fork extends from the bottom of the fixed seat. The inner end of the shift fork is hingedly connected to the lower end of the support. The upper end of the support is arranged corresponding to the lower end of the tension spring. The outer end of the corresponding shift fork is provided with a pull rod structure or an electric pull rod driving structure, which is easy to operate, can realize remote control, and is safe and reliable.

[0040] Furthermore, the device also includes a tension adjustment bolt for adjusting the tensioning force of the tension spring. A screw hole is provided in the slide rod seat. The tension adjustment bolt cooperates with the screw hole. The lower end of the tension adjustment bolt is extended from the bottom of the slide rod seat, and the extended end is correspondingly provided with the support. The slide rod seat and the slide rod are always kept upward under the action of the tension spring to control the position of the sliding sleeve shaft. The tension adjustment bolt is adjusted to achieve accurate lifting and lowering adjustment of the plug rod.

[0041] A rotating slot flange is provided on the sleeve shaft, and one end of the cantilever is sleeved on the sleeve shaft through a cantilever hoop structure and supported by the rotating slot flange. Preferably, the cantilever hoop structure includes a pair of cantilever hoop, one cantilever hoop is fixedly connected to one end of the cantilever, and the pair of cantilever hoop are connected through an edge flange and a fastener; the installation is simple, and the position of the cantilever and the plug rod clamping mechanism can be rotated to adjust.

[0042] The plug rod clamping mechanism includes a vertical shaft and a clamping head structure for fixing the upper end of the plug rod. The end of the cantilever is provided with a detachable fixing structure. The vertical shaft is connected to the fixing structure, and the clamping head structure is connected to the lower end of the vertical shaft.

[0043] The chuck structure includes a fixed chuck and a movable chuck. The fixed chuck is fixedly connected to the lower end of the vertical shaft. The movable chuck and the fixed chuck are connected by fasteners. The upper end of the plug rod is clamped and fixed between the fixed chuck and the movable chuck. The installation and replacement of the plug rod are simple.

[0044] The fixed structure includes a pair of plug rod lifting nuts, one plug rod lifting nut is fixed at the end of the cantilever, and the edges of the pair of plug rod lifting nuts are connected by fasteners; a crank is provided at the upper end of the vertical shaft, and a driving cylinder for driving the crank to rotate is provided on the sleeve shaft or the fixed seat, and the driving end of the driving cylinder is connected to the crank through a connecting rod structure. When the driving cylinder works, the vertical shaft is driven to rotate through the connecting rod structure and the crank, and the plug rod clamp mechanism is driven to clamp the plug rod and rotate within a certain angle range to adjust the sealing degree of the plug rod end contacting the pouring machine nozzle.

[0045] The pouring machine of the present invention comprises a frame for carrying a heat preservation furnace and the pouring plug rod control device, wherein the fixing seat is fixed on the frame. The plug rod is lifted and adjusted accurately by the pull rod tensioning sleeve shaft structure and the cantilever structure, so that the opening size of the pouring water outlet is controlled more accurately, and the flow rate of the molten metal in the heat preservation furnace of the pouring machine is prevented from being uncontrollable due to the excessive water outlet gap; and the plug rod is quickly replaced and maintained simply by the movable lifting nut and the movable chuck.

[0046] The preferred specific embodiments of the present invention are:

[0047] The equipment for quickly installing and maintaining the pouring plug rod of the present invention relates to the technical field of casting equipment, and is suitable for the quick installation, adjustment and maintenance of the plug rod of the bottom pouring pouring machine. The equipment fully meets the process requirements of the pouring production of the pouring machine through technical inventions and innovations, further ensures safe production and prolongs the service life of the plug rod; through its unique structural features, it realizes the lifting and lowering adjustment of the plug rod, timely adjustment of the contact state between the plug rod and the water outlet, timely adjustment of the position of the plug rod, and realizes the quick replacement of the plug rod, etc.

[0048] The equipment of the present invention comprises a fixing seat 1, a sliding sleeve shaft 2, a cantilever mechanism 3, a plug rod adjustment mechanism 4, a plug rod chuck mechanism 5, a pull rod tensioning mechanism 6, a pull rod mechanism 7 and the like.

[0049] The equipment is connected to the trolley 92 of the pouring machine through the bottom plate 11 of the fixing seat 1 and the fixing frame 924 provided on the pouring machine. The equipment clamps the plug rod 8 through the plug rod clamping mechanism 5 at the end of the cantilever 32 to contact and cooperate with the water inlet 911 at the bottom of the pouring machine insulation furnace, and adjusts the gap between the plug rod 8 and the water inlet 911 through the pull rod mechanism 7 to achieve the flow or blockage of the molten metal to achieve pouring. The plug rod 8 clamped by the equipment is hung on the insulation furnace through a cantilever 32 to avoid the high temperature of the insulation furnace from damaging the fixing seat 1, the sleeve shaft 2, the pull rod tensioning mechanism 6, etc., and ensure that the equipment for quickly installing and maintaining the pouring plug rod can work normally for a long time.

[0050] The equipment is fixed on the trolley 92 of the casting machine through the bottom plate 11 of the fixing seat 1 and the fixing frame 924 provided on the casting machine. The fixing seat 1 is provided with a spacer sleeve 13 structure for the sliding sleeve shaft 2 to slide.

[0051] The sleeve shaft 2 is arranged in the fixed seat 1 to slide up and down; the upper part of the sleeve shaft 2 is equipped with a cantilever hoop Ⅰ31 and a cantilever hoop Ⅱ35; the upper part of the sleeve shaft 2 is provided with a rotating slide flange 23 structure; the lower part of the sleeve shaft 2 is provided with an adjustment bolt connection end 21, a slide rod slot hole 22, an upper support chamber 24 and other structures. The equipment can be equipped with two plug rod chuck mechanisms 5, and the equipment can realize more convenient removal or installation of the plug rod 8 by replacing the chuck mechanism 5.

[0052] The cantilever mechanism 3 is composed of a cantilever hoop Ⅰ31 , a cantilever 32 , a plug rod lifting nut Ⅰ33 , a plug rod lifting nut Ⅱ34 , and a cantilever hoop Ⅱ35 .

[0053] The plug rod adjustment mechanism 4 is composed of a drive cylinder fixing seat 41, a drive cylinder, a traction connecting rod 43, a crank 44, and a connecting rod limiting hoop 45. The structure and form of the traction connecting rod 43 are not specifically limited; the drive cylinder can be remotely controlled at the pull rod 77 to meet the convenience and safety of production operations.

[0054] The plug rod clamp mechanism 5 is composed of a fixed clamp 52, a vertical shaft 51, a lifting lug 54 and a movable clamp 53. The fixed clamp 52 and the movable clamp 53 are matched and connected by bolts to clamp the plug rod 8, that is, the plug rod 8 can be removed or installed by disassembling or installing the movable clamp 53.

[0055] The lower end of the plug rod 8 is in contact with the water inlet 911; the lower part of the plug rod 8 is bullet-shaped or conical so as to contact and cooperate with the flared surface or R surface of the upper end of the core of the water inlet 911.

[0056] The pull rod tensioning mechanism 6 is composed of a tensioning adjusting bolt 61, a slide rod seat 62, a slide rod 63, and a tension spring 64. The pull rod mechanism 7 is composed of a lower support 71, an upper support 72, an upper support gland 73, a connecting rod 74, a shift fork 75, a cross bar 76, and a pull rod 77.

[0057] The specific structure is described in detail below:

[0058] 1. Sliding sleeve shaft

[0059] The sliding sleeve shaft 2 is arranged in the fixed seat 1 to slide up and down.

[0060] The sliding sleeve shaft 2 and the fixed seat 1 are respectively provided with a slide bar slot 22 and a slide bar slot 12. The lower part of the sliding sleeve shaft 2 is placed in the fixed seat 1; the lower part of the sliding sleeve shaft 2 slides up and down within a certain range in the fixed seat 1 through the slide bar 63 passing through the slide bar slot 22 and the slide bar slot 12.

[0061] like Figure 3 , Figure 4 As shown, the lower part of the sliding sleeve shaft 2 is provided with an adjusting bolt connecting end 21, a sliding rod slot hole 22, a rotating sliding groove flange 23, and an upper support chamber 24.

[0062] like Figure 4 , Figure 5 As shown, a rotating slot flange 23 is provided in the middle of the sliding sleeve shaft 2, and a rotating slot hole is provided on one side of the rotating slot flange of the sliding sleeve shaft 2. A cantilever hoop II 35 which can rotate within a certain angle range is installed on the rotating slot flange 22; a cantilever hoop I 31 is also installed on the upper part of the sliding sleeve shaft 2; the cantilever hoop I 31 and the cantilever hoop II 35 form a complete hoop which can be quickly disassembled and adjusted to be loose and tight to be hooped on the upper part of the sliding sleeve shaft 2.

[0063] 2. Cantilever mechanism

[0064] The cantilever hoop II 35 of the cantilever mechanism is provided with a rotating slot hole corresponding to the rotating slot flange 22 and is connected to the rotating slot flange 22 by bolts.

[0065] The cantilever hoop Ⅰ31 is radially connected to the fixed cantilever 32.

[0066] The cantilever hoop I 31 and the cantilever hoop II 35 are matched and connected by bolts and fixed on the upper part of the sliding sleeve shaft 2. The cantilever hoop I 31 and the cantilever hoop II 35 can be rotated within a certain angle range by adjusting the bolts.

[0067] The other end of the cantilever 32 is fixed with a plug rod lifting nut I33; the plug rod lifting nut I33 and the plug rod lifting nut II34 form a complete lifting nut to clamp the upper part of the vertical shaft 51 of the plug rod clamping head mechanism 5 in the form of threaded cooperation. One side of the plug rod lifting nut I33 is hinged to the side corresponding to the plug rod lifting nut II34 through a hinge; the other side of the plug rod lifting nut I33 is connected to the side corresponding to the plug rod lifting nut II34 through a bolt, and the plug rod lifting nut I33 and the plug rod lifting nut II34 are adjusted by adjusting the bolts to adjust the tightness of the cooperation with the vertical shaft 51.

[0068] 3. Plug rod adjustment mechanism

[0069] The plug rod adjustment mechanism is composed of a drive cylinder fixing seat 41, a drive cylinder, a traction link 43, and a crank 44. The drive cylinder 42 is transversely mounted on the drive cylinder fixing seat 41; the end of the drive cylinder is connected to the crank 44 through the traction link 43. The structural form of the traction link 43 is not specifically limited.

[0070] The plug rod adjustment mechanism drives the plug rod clamp mechanism 5 to clamp the plug rod 8 and rotate it within a certain angle range through the driving cylinder, the traction connecting rod 43 and the crank 44 to adjust the sealing degree of the contact between the end of the plug rod 8 and the water inlet 911 of the casting machine 9.

[0071] The driving cylinder fixing seat 41 is fixed on the cantilever hoop II 35 ; the driving cylinder fixing seat 41 rotates within a certain angle range along with the cantilever hoop II 35 .

[0072] 4. Plug rod chuck mechanism

[0073] The fixed chuck 52 of the plug rod chuck mechanism is matched with an independent movable chuck 53 and connected by bolts to form a complete plug rod chuck to clamp the upper end of the graphite plug rod 8. The movable chuck 53 is detachable. The equipment for quickly installing and maintaining the casting plug rod can be configured with two plug rod chuck mechanisms 5. The equipment for quickly installing and maintaining the casting plug rod can realize more convenient removal or installation of the plug rod 8 by replacing the chuck mechanism 5.

[0074] The lifting lug 54 is disposed on the upper portion of the vertical shaft 51 so as to lift the plug rod chuck mechanism 5 and rotate the vertical shaft 51 .

[0075] The vertical shaft 51 can be designed as a centrally-through structure to facilitate ventilation and heat dissipation.

[0076] A crank 44 is provided on the upper part of the vertical shaft 51 of the plug rod chuck mechanism 5, and the plug rod adjustment mechanism 5 is driven by the crank 44 to make the plug rod chuck mechanism 5 rotate within a specified angle range. A limit hoop 45 is provided below the crank 44 to prevent the crank 44 from sliding down. The crank 44 and the connecting rod limit hoop 45 are clamped on the vertical shaft; the tightness of the crank 44 and the connecting rod limit hoop 45 and the vertical shaft 51 is adjustable.

[0077] The plug rod chuck mechanism 5 is suspended on one end of the cantilever 32 in a liftable manner by cooperating with the plug rod lifting nut I 33 and the plug rod lifting nut II 34 through the threaded portion of the vertical shaft 51 .

[0078] 5. Tie rod tensioning mechanism

[0079] The slide bar 63 of the pull rod tensioning mechanism passes transversely through the slide bar slot hole 22 of the sliding sleeve shaft 2 and the slide bar slot hole 12 of the fixing seat 1 .

[0080] The tensioning adjustment bolt 61 of the pull rod tensioning mechanism 6 vertically passes through the slide rod seat 62 and the slide rod 63 and is matched and connected with the threaded hole of the adjustment bolt connecting end 21 at the bottom of the sliding sleeve shaft 2 .

[0081] A tension spring 64 is installed between the slide rod seat 62 and the adjusting bolt connection end 21 ; the slide rod seat 62 and the slide rod 63 are always kept upward by the tension spring 64 to control the position of the sleeve shaft 2 .

[0082] The tension spring 64 adjusts the tension force through the tension adjustment bolt 61 .

[0083] 6. Pull rod mechanism

[0084] The lower support 71 of the pull rod mechanism 7 is fixed on the bottom plate 11 of the fixing base 1; the lower support 71 is hinged to the shift fork 75 through a pin shaft, that is, the shift fork 75 forms a lever mechanism with the lower support 71 as a fulcrum.

[0085] The upper support 72 is installed on the lower end of the sliding sleeve shaft 2 through the upper support cover 73.

[0086] One end of the shift fork 75 is connected to the upper support 72 through a connecting rod 74 ; the other end of the shift fork 75 is fixedly connected to a cross bar 76 .

[0087] A pull rod 77 is connected to one end of the cross bar 76 for operation of pouring.

[0088] The working principle of the present invention is described as follows:

[0089] 1. Pouring and pouring flow or pouring speed control:

[0090] The equipment is connected to the trolley of the casting machine through the bottom plate 11 of the fixing seat 1 and the fixing frame 924 provided on the casting machine. The equipment is composed of a fixing seat, a sliding sleeve shaft, a cantilever mechanism, a plug rod adjustment mechanism, a plug rod clamp mechanism, a pull rod tensioning mechanism, a pull rod mechanism, etc.

[0091] The equipment clamps the plug rod 8 through the plug rod chuck mechanism to make it contact and cooperate with the pouring machine nozzle 911, and adjusts the gap between the plug rod 8 and the nozzle 911 through the pull rod mechanism 7 to realize the flow or closure of the molten metal to realize pouring.

[0092] Pouring process: manually pull the pull rod 77, due to the lever principle, the fork 75 pries the upper support 72 through the connecting rod 74 to drive the sleeve shaft 2 to slide upward in the fixed seat 1, and the sleeve shaft 2 slides upward. During the upward sliding process, the cantilevered plug rod lifting nut I and the plug rod lifting nut II clamp the plug rod chuck mechanism 5 and move it upward, that is, the plug rod chuck mechanism 5 clamps the plug rod 8 to rise and disengage the plug rod from the pouring machine water nozzle 911, and the molten metal in the pouring machine insulation furnace 91 naturally flows out from the gap between the plug rod 8 and the water nozzle 911 to achieve pouring.

[0093] The slide bar 63 is horizontally placed in the slide bar slot 22 and the slide bar slot 12; under the action of the tension spring 64, the slide bar 63 is always located at the upper part of the slide bar slot 22 and the slide bar slot 12. Since the sliding sleeve shaft 2 is restricted by the sliding rod 63 and the tension spring 64, its up and down movement range in the fixed seat 1 is restricted, which avoids the sliding sleeve shaft 2 moving up and down too far, which causes the gap between the plug rod 8 and the water inlet 911 to be too large, resulting in the flow rate of the molten metal in the pouring machine insulation furnace 91 being uncontrollable.

[0094] Obviously, each time the shift fork 75 pries the upper support 72 to drive the sliding sleeve 2 to move upward, the distance can be controlled to vary within a set range to meet the pouring amount or pouring process requirements of the mold, that is, to achieve pouring flow rate or (and) pouring flow control.

[0095] Manually loosen the pull rod 77, the shift fork 75 naturally resets and releases the force on the sleeve shaft 2. The sleeve shaft 2 resets downward under the action of the tension spring 64 and gravity. During the downward sliding process of the sleeve shaft 2, the cantilevered plug rod lifting nut Ⅰ33 and the plug rod lifting nut Ⅱ34 clamp the plug rod clamp mechanism 5 and move it downward, that is, the plug rod clamp mechanism 5 clamps the plug rod 8 and descends to make the plug rod contact with the pouring machine water nozzle 911 to block the water nozzle to prevent the molten metal in the pouring machine insulation furnace 91 from flowing out, that is, the pouring machine 9 stops pouring or is in a stopped pouring state.

[0096] 2. Adjustment of the contact between the plug rod and the nozzle

[0097] The pouring machine 9 completes the pouring production by adjusting the gap between the stopper rod 8 and the water outlet 911 and controlling the state of the stopper rod 8 and the blocked water outlet 911 .

[0098] Since the stopper rod 8 passes through the metal liquid in the pouring machine insulation furnace 91 to block the water outlet, the contact state between the stopper rod 8 and the water outlet 911 will change due to the erosion and scouring of the stopper rod 8 and the water outlet 911 by the metal liquid. When the stopper rod 8 blocks the water outlet 911 when the pouring is stopped, if the contact surface is not sufficient and there is a gap, the high-temperature metal liquid will overflow from the gap between the stopper rod 8 and the water outlet 911, affecting the safe production or causing the waste of metal liquid.

[0099] The equipment timely adjusts the plug rod 8 and the nozzle 911 to a fully contact state through the plug rod adjustment mechanism 4 to prevent the metal liquid in the pouring machine insulation furnace 91 from overflowing from the plug rod 8 and the nozzle 911. The plug rod adjustment mechanism 4 is composed of a drive cylinder fixing seat 41, a drive cylinder, a traction connecting rod, and a crank. The drive cylinder is installed on the cantilever hoop II through the drive cylinder fixing seat 1; the drive cylinder is connected to the crank through the traction connecting rod; the crank is fixed to the upper part of the vertical shaft of the plug rod clamp mechanism.

[0100] The driving cylinder drives the plug rod chuck mechanism through the pulling connecting rod and the crank to rotate repeatedly within a certain angle range with the vertical axis of the chuck mechanism as the axis. That is, the contact state between the plug rod and the water outlet is adjusted by rotating the plug rod.

[0101] 3. Adjustment of the stopper rod and the nozzle position

[0102] The cantilever hoop II of the cantilever mechanism is provided with a rotating slot hole corresponding to the rotating slot flange 22 and is connected to the rotating slot flange 22 by bolts; the cantilever hoop I31 is radially connected to fix the cantilever 32; the cantilever hoop I31 is matched with the cantilever hoop II35 and is fixed on the upper part of the sliding sleeve shaft 2 by bolt connection.

[0103] The cantilever clamp I and the cantilever clamp II can be rotated within a certain angle range by adjusting the bolts, that is, the position of the plug rod relative to the water outlet can be adjusted.

[0104] 4. Plug rod height adjustment

[0105] The other end of the cantilever 32 is fixed with a plug rod lifting nut I33; the plug rod lifting nut I33 and the plug rod lifting nut II34 form a complete lifting nut to clamp the upper part of the vertical shaft 51 of the plug rod chuck mechanism in a threaded form; the upper part of the vertical shaft is provided with a lifting ear 54.

[0106] The lifting lug is rotated, and the vertical shaft threaded portion of the plug rod chuck mechanism cooperates with the plug rod lifting nut I and the plug rod lifting nut II to rotate to achieve lifting or lowering.

[0107] 5. Quick replacement of plug rod

[0108] A lifting lug 54 is provided on the upper part of the vertical shaft 51 of the plug rod chuck mechanism; one side of the plug rod lifting nut I 33 is hinged to the side corresponding to the plug rod lifting nut II 34 through a hinge; the other side of the plug rod lifting nut I is connected to the side corresponding to the plug rod lifting nut II through a bolt.

[0109] Use a crane to hook the lifting lug 54 on the upper part of the vertical shaft of the plug rod chuck mechanism 5, remove the connecting fixing bolts between the plug rod lifting nut Ⅰ33 and the plug rod lifting nut Ⅱ34, rotate the plug rod lifting nut Ⅱ34 and the plug rod lifting nut Ⅰ33 to separate them, and then directly lift the plug rod chuck mechanism 5. Then install another prepared plug rod chuck mechanism 5 to quickly complete the replacement of the plug rod 8.

[0110] 6. Pouring machine working

[0111] The pouring machine 9 is placed above the mold; the pouring machine 9 is mainly composed of a holding furnace 91, a trolley 92, a trolley track, a large car 93, a buffer (94), a large car track 97, etc.

[0112] The trolley 92 carries a holding furnace 91 for containing molten metal. A water inlet 911 for molten metal to flow out is provided at the bottom of the holding furnace 91. The core of the water inlet 911 is a centrally-through structure. The upper end of the core of the water inlet is trumpet-shaped or cone-shaped.

[0113] The equipment is connected to the trolley 92 of the casting machine through the bottom plate 11 of the fixing seat 1 and the fixing frame 924 provided on the casting machine. The equipment clamps a plug rod 8 through the plug rod clamp mechanism 5 to contact and cooperate with the casting machine nozzle 911; the contact state of the plug rod 8 and the nozzle 911 changes through the action of the pull rod mechanism 7, that is, the plug rod 8 and the nozzle 911 are in contact and separated.

[0114] The trolley 92 moves on the trolley track to move the holding furnace 91 away from the pouring area.

[0115] The trolley 93 carries the trolley 92 and the buffer 94 to reciprocate on the trolley track 97 to realize pouring of multiple casting molds.

[0116] The buffer 94 is located below the holding furnace 91 on the trolley 93; the molten metal in the holding furnace 91 flows out from the water inlet 911 and is smoothly injected into the casting mold cavity through the buffer 94 in an integrated beam shape to achieve pouring, so as to avoid or reduce the waste of molten metal splashing.

[0117] The pouring machine 9 is also provided with a safety platform 95 and a safety ladder 96 for operation and maintenance so as to ensure safe production.

[0118] The above is only an explanation of the preferred embodiments of the present invention, and the above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0119] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A pouring plug rod control device, comprising a lifting mechanism, a cantilever and a plug rod clamping mechanism, wherein the plug rod clamping mechanism is connected to the lifting mechanism through the cantilever, and is characterized in that: The lifting mechanism includes a fixed seat and a sliding sleeve shaft assembly, and the sliding sleeve shaft assembly includes a sliding sleeve shaft, a sliding rod seat, a tensioning spring and a pushing structure for pushing up the lower end of the tensioning spring; the sliding sleeve shaft is a hollow structure, and the sliding sleeve shaft is arranged in the hollow fixed seat, and the sliding rod seat and the tensioning spring are both arranged in the sliding sleeve shaft, and corresponding sliding rod slots are provided on the fixed seat and the sliding sleeve shaft, and a sliding rod that can move up and down in the sliding rod slot is provided on the sliding rod seat, and the pushing structure is arranged corresponding to the bottom of the fixed seat, and the tensioning spring is arranged between the sliding rod seat and the inner end of the pushing structure.

2. The pouring plug rod control device according to claim 1, characterized in that: The sliding sleeve shaft is provided with a rotating sliding groove flange, and one end of the cantilever is sleeved on the sliding sleeve shaft through a cantilever hoop structure and supported by the rotating sliding groove flange.

3. The pouring plug rod control device according to claim 1, characterized in that: The pushing structure includes a shift fork and a support. The shift fork is hinged to the bottom of the fixed seat through a pin shaft. The shift fork extends from the bottom of the fixed seat. The inner end of the shift fork is hingedly connected to the lower end of the support. The upper end of the support is arranged corresponding to the lower end of the tension spring.

4. The pouring plug rod control device according to claim 1, characterized in that: The plug rod clamping mechanism comprises a vertical shaft and a clamping head structure for fixing the upper end of the plug rod. The end of the cantilever is provided with a detachable fixing structure. The vertical shaft is connected to the fixing structure, and the clamping head structure is connected to the lower end of the vertical shaft.

5. The pouring plug rod control device according to claim 2, characterized in that: The cantilever hoop structure comprises a pair of cantilever hoop, one cantilever hoop is fixedly connected to one end of the cantilever, and the pair of cantilever hoop are connected via edge flanges and fasteners.

6. The pouring plug rod control device according to claim 3, characterized in that: It also includes a tension adjustment bolt for adjusting the tensioning force of the tension spring. A screw hole is arranged in the slide bar seat. The tension adjustment bolt cooperates with the screw hole. The lower end of the tension adjustment bolt extends out from the bottom of the slide bar seat, and the extended end is arranged corresponding to the support.

7. The pouring plug rod control device according to claim 4, characterized in that: The clamp structure comprises a fixed clamp and a movable clamp, wherein the fixed clamp is fixedly connected to the lower end of the vertical shaft, the movable clamp and the fixed clamp are connected via a fastener, and the upper end of the plug rod is clamped and fixed between the fixed clamp and the movable clamp.

8. The pouring plug rod control device according to claim 4, characterized in that: The fixing structure comprises a pair of plug rod lifting nuts, one plug rod lifting nut is fixed at the end of the cantilever, and the edges of the pair of plug rod lifting nuts are connected by fasteners.

9. The pouring plug rod control device according to claim 8, characterized in that: A crank is provided at the upper end of the vertical shaft, and a driving cylinder for driving the crank to rotate is provided on the sliding sleeve shaft or the fixed seat, and the driving end of the driving cylinder is connected to the crank through a connecting rod structure.

10. A pouring machine, comprising a frame for carrying a holding furnace, characterized in that: It also includes a pouring plug rod control device as described in any one of claims 1 to 9, wherein the fixing seat is fixed on the vehicle frame.

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