Casting equipment and process for producing oversize screw-down nut blank for metallurgical rolling mill

Abstract

The invention discloses casting equipment and process for producing oversize screw-down nut blanks for metallurgical rolling mills, and relates to the technical field of nut blank casting. The casting equipment comprises a mold, a connecting pipe is mounted on the inner wall of the left end of the mold, a center cavity is connected to the right end of the connecting pipe, and a first block is mounted on the outer wall of the center cavity; a first connecting rod is mounted on the outer wall of the protection frame, one end of the connecting rod is connected with a mounting column, and a worm gear sleeves the outer wall of the mounting column and sleeves the outer wall of the second block. According to the device, a mold is arranged, a first telescopic rod is shortened to pull one set of protection frames to move backwards, a first micro servo motor in the other set of protection frames is started to drive a worm to rotate and drive a worm gear to rotate, then a first block penetrating through the outer wall of the worm gear is driven to rotate, and a central cavity is driven to move through the first block and a second block; therefore, the position of the central cavity can be finely adjusted according to the blank casting requirement and the change of the center of gravity of the mold, and the casting precision and the casting stability can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of nut blank casting, in particular to a casting device and process for producing extra-large pressed nut blanks for metallurgical rolling mills. Background Art

[0002] Extra-large press-down nuts are used in pipe fittings in the metallurgical industry. Since the nut body is large and heavy, it is a heavy casting. In order to ensure the product quality of the nut blank, a centrifugal casting process needs to be adopted during its production. However, when using the existing centrifugal casting setting for nut blanks, it is not convenient to adjust the blank liquid output position according to the casting requirements and the change of the mold center of gravity, and it is not convenient to stably support the mold, which reduces the blank production accuracy and the safety of the casting production process.

[0003] The defects of existing nut blank casting equipment are:

[0004] 1. Application document CN114603098A addresses the issue of how to facilitate nut casting and improve efficiency, but fails to consider how to fine-tune the blank liquid output position;

[0005] 2. Patent document CN113351845A mainly considers how to realize the demoulding of the casting in the mold, but does not consider how to improve the convenience and efficiency of disassembly and assembly of the mold;

[0006] 3. Patent document CN110899649B mainly considers how to solve the problem of casting liquid accumulation, but does not consider how to provide stable support for the mold during the centrifugal casting process. Summary of the Invention

[0007] The purpose of the present invention is to provide a casting device and process for producing extra-large pressed nut blanks for metallurgical rolling mills, so as to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a casting device for producing extra-large pressed nut blanks for a metallurgical rolling mill, comprising a mold, a connecting pipe mounted on the inner wall of the left end of the mold, a central cavity connected to the right end of the connecting pipe, a fixing plate mounted on the inner wall of the mold, an adjusting plate embedded in the fixing plate, and the central cavity extending through the back of the adjusting plate;

[0009] The outer wall of the central cavity is installed with block 1, and block 1 is located on the left side of the fixed plate. The outer wall of block 1 is installed with block 2. The interior of the mold is provided with an installation cavity, and a protective frame is slidably installed inside the installation cavity. A micro servo motor 1 is installed inside the protective frame, and the output end of the micro servo motor 1 is connected to a worm. The outer wall of the protective frame is installed with connecting rod 1, and the connecting rod 1 passes through the interior of the installation cavity. The end of the connecting rod 1 away from the protective frame is connected to the installation column, and the right end of the installation column is embedded in the connection with the outer wall of the fixed plate. The outer wall of the installation column is provided with a worm gear, and the worm gear is meshed with the worm. The worm gear is sleeved on the outer wall of block 2, and the inner wall of the installation cavity is provided with a telescopic rod 1, and the output end of the telescopic rod 1 is connected to the outer wall of the protective frame.

[0010] Preferably, a bolt member is installed at the right end of the mold, and a chuck is sleeved on the outer wall of the bolt member, and the bolt member is used to connect the mold and the chuck.

[0011] Preferably, a shaft is installed on the outer wall of the chuck, and one end of the shaft away from the chuck is connected to a rotating spindle. The outer wall of the rotating spindle is sleeved with a support seat, and the support seat is fixedly installed on the top of the base.

[0012] Preferably, the outer wall of the shaft is sleeved with a gear 1, the inner wall of the gear 1 and the outer wall of the shaft are provided with mutually meshing threads, the outer wall of the chuck is fixedly installed with a square rod 1, and the square rod 1 is evenly distributed around the outside of the shaft, the outer wall of the square rod 1 is sleeved with a rod sleeve, and the outer wall of the rod sleeve is installed with a connecting rod 2, and the connecting rod 2 is embedded in the outer wall of the nut piece toward one end of the gear 1, and the interior of the nut piece is meshed with the outer wall of the threaded piece, the outer wall of the nut piece is sleeved with a gear 2, and the gear 2 and the gear 1 are meshed with each other, and a mounting bracket is slidably installed on the top of the base, and a micro servo motor 2 is installed on the outer wall of the mounting bracket, and a gear 3 is sleeved on the output end of the micro servo motor 2, and the gear 3 and the gear 1 are meshed with each other, and a connecting rod 3 and a connecting rod 4 are installed on the outer wall of the mounting bracket, and the connecting rod 3 and the connecting rod 4 are respectively located on both sides of the micro servo motor 2, and the left end of the connecting rod 3 is embedded in the outer wall of the gear 1, and the left end of the connecting rod 4 is embedded in the outer wall of the gear 3.

[0013] Preferably, a telescopic rod three and a guide bar are installed on the top of the base, and the telescopic rod three is located at the front and rear sides of the guide bar, and a sliding seat is installed on the output end of the telescopic rod three, and the sliding seat is sleeved on the outer wall of the guide bar, and a telescopic rod two is installed on the top of the sliding seat, and the output end of the telescopic rod two is connected to an adjusting frame, and the number of installation groups of the adjusting frame is two groups, and a servo motor three is installed on the outer wall of the adjusting frame, and the output end of the servo motor three is connected to a rotating rod, and the rotating rod passes through the outer wall of the adjusting frame, and the outer wall of the rotating rod is sleeved with two groups of rotating frames, and the rotating frame is located between the two groups of adjusting frames, and a mounting shaft is installed on the inner wall of the side where the two groups of rotating frames are close to each other, and the outer wall of the mounting shaft is sleeved with a supporting wheel, and the supporting wheel fits the outer wall of the mold.

[0014] Preferably, the outer wall of the mounting shaft is provided with a flow guide groove, the outer wall of the mounting shaft is sleeved with a fan ring, the fan ring is located on the left side of the supporting wheel, the outer wall of the fan ring is provided with a supporting strip, the right side of the supporting wheel is provided with a conical cover, one end of the supporting strip is connected with the inner wall of the conical cover, and the outer wall of the rotating plate is provided with a through hole.

[0015] Preferably, the outer wall of the rotating main shaft is sleeved with a transmission wheel one, and the transmission wheel one is located on the right side of the shaft rod.

[0016] Preferably, the top of the base is provided with a driving motor, the outer wall of the output end of the driving motor is sleeved with a transmission wheel two, the outer wall of the transmission wheel two is sleeved with a transmission belt, and the transmission belt is sleeved on the outer wall of the transmission wheel one.

[0017] A large-scale screw nut blank production process for a metallurgical rolling mill, the screw nut blank production process is as follows:

[0018] S1, the right end of the mold is attached to the left end of the chuck, and the bolt is penetrated through the outer wall of the chuck, the miniature servo motor is started, the gear three is driven to rotate, the gear two is driven to rotate through the gear one, the gear two drives the nut to rotate, the nut is screwed with the bolt, and the mold and the chuck are fixedly connected;

[0019] S2, the telescopic rod three drives the sliding seat to move, thereby driving the supporting wheel to move along the axis direction of the mold, the servo motor three drives the rotating frame to rotate through the rotating rod, thereby driving the supporting wheel to rotate, the height position of the supporting wheel is adjusted through the telescopic rod two, thereby adjusting the supporting point of the supporting wheel to the mold;

[0020] S3, the driving motor is further driven to rotate the transmission wheel two, the rotating main shaft is driven to rotate through the transmission belt and the transmission wheel one, and the mold is further driven to rotate;

[0021] S4, the blank liquid is injected from the injection port of the left end of the mold, the blank liquid flows into the center cavity through the connecting pipe, the centrifugal force generated by the rotation of the mold is used to throw the blank liquid from the center cavity to the peripheral wall of the mold, the peripheral wall of the mold is cooled and solidified, and the nut blank is formed.

[0022] Preferably, in S4, the following steps are further included:

[0023] S41, a group of worm gears are separated from the block two, the worm is driven to rotate through the miniature servo motor one, thereby driving another group of worm gears to rotate, the center cavity is driven to move through the block two and the block one, and the position of the center cavity is finely adjusted.

[0024] Compared with the prior art, the beneficial effects of the present application are:

[0025] 1. The present invention is equipped with a mold, a central cavity and a worm gear. A telescopic rod is shortened to pull a group of protective frames backward, thereby separating a group of worm gears from a block. A micro servo motor in another group of protective frames is started to drive the worm to rotate, thereby driving the worm gear to rotate, and then driving a block that penetrates the outer wall of the worm gear to rotate. The central cavity is driven to move through the blocks one and two, thereby facilitating fine-tuning the position of the central cavity according to the casting requirements of the billet and the change of the center of gravity of the mold, which is beneficial to improving the casting accuracy and casting stability.

[0026] 2. The present invention is equipped with a chuck, gear one, gear two and gear three, and a micro servo motor two to drive gear three to rotate, thereby driving gear one to rotate. When gear one and gear three rotate, they drive the mounting frame to move through connecting rod three and connecting rod four, thereby causing gear one and gear three to move synchronously toward the chuck. Gear one drives gear two to rotate, causing gear two to drive the nut part to rotate. When gear two and the nut part rotate, the nut part is driven to move toward the chuck through connecting rod two, rod sleeve and guide rod, and is threadedly connected with the bolt part, thereby facilitating the fixed connection between the chuck and the mold, improving the connection and disassembly efficiency between the mold and the chuck, and improving the casting efficiency in terms of mobility.

[0027] 3. The present invention is equipped with a support wheel, and the telescopic rod three pushes the sliding rod seat to move, thereby driving the support wheel to move along the axis direction of the mold, thereby achieving the purpose of adjusting the support point of the support wheel to the mold along the axis direction of the mold, and driving the rotating rod to rotate by the servo motor three, so that the support wheel rotates outward, and then the adjustment frame is pushed upward by the telescopic rod two, thereby driving the rotating frame and the support wheel to move upward, so that the support wheel fits with the outer wall of the mold again, and the support point changes in the vertical plane, thereby achieving the purpose of adjusting the support point of the support wheel to the mold along the outer tangent direction of the mold diameter, thereby stabilizing the mold's own weight and the change of the mold center of gravity caused by the casting of the billet liquid, eliminating the safety hazards to the equipment caused by the change of the deflection center of gravity during high-speed rotation, and improving the safety of the billet casting production process.

[0028] 4. The present invention is equipped with a blade cover. During the rotation of the supporting roller, the blade ring is driven to rotate through the conical cover and the support bar. The blade ring drives the air flow, so that the air flows to the right through the through hole and the left end of the conical cover. The gas is concentrated to the outside of the mounting shaft and the guide groove through the conical cover. The circulating air flows through the guide groove and takes away the heat of the mounting shaft, thereby achieving cooling of the supporting roller mounting shaft, avoiding the phenomenon of locking of the supporting roller mounting shaft due to heating, and then hindering the rotation of the mold, which is conducive to ensuring the normal operation of the casting equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2It is a schematic diagram of the chuck structure of the present invention;

[0031] Figure 3 This is a schematic diagram of the meshing of gear 1 and gear 2 of the present invention;

[0032] Figure 4 This is a schematic diagram of the meshing of gear 3 and gear 1 of the present invention;

[0033] Figure 5 It is a schematic diagram of the mounting frame structure of the present invention;

[0034] Figure 6 This is a schematic diagram of the supporting wheel structure of the present invention;

[0035] Figure 7 It is a schematic structural diagram of the adjustment frame of the present invention;

[0036] Figure 8 It is a schematic diagram of the conical cover structure of the present invention;

[0037] Figure 9 Schematic diagram of the guide groove structure of the present invention;

[0038] Figure 10 It is a schematic diagram of the mold structure of the present invention.

[0039] In the figure: 1. mold; 2. connecting pipe; 3. central cavity; 4. fixing plate; 5. adjusting plate; 6. block 1; 7. block 2; 8. mounting cavity; 9. protective frame; 10. micro servo motor 1; 11. worm; 12. worm gear; 13. connecting rod 1; 14. mounting column; 15. telescopic rod 1; 16. bolt; 17. chuck; 18. shaft; 19. rotating spindle; 20. support seat; 21. base; 22. gear 1; 23. square rod 1; 24. rod sleeve; 25. connecting rod 2; 26. nut; 27. Gear 2; 28. Mounting frame; 29. ​​Micro servo motor 2; 30. Gear 3; 31. Connecting rod 3; 32. Connecting rod 4; 33. Guide bar; 34. Sliding seat; 35. Telescopic rod 2; 36. Adjusting frame; 37. Rotating frame; 38. Servo motor 3; 39. Rotating rod; 40. Mounting shaft; 41. Support wheel; 42. Guide groove; 43. Conical cover; 44. Blade ring; 45. Support bar; 46. Through hole; 47. Telescopic rod 3; 48. Drive motor; 49. Transmission wheel 1; 50. Transmission belt; 51. Transmission wheel 2. DETAILED DESCRIPTION

[0040] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below, obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0041] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] Please refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , the present application provides an embodiment: a casting equipment for producing a special large screw nut blank for a metallurgical rolling mill, comprising a mold 1, a bolt piece 16 is installed at the right end of the mold 1, a chuck 17 is sleeved on the outer wall of the bolt piece 16, the bolt piece 16 is used to connect the mold 1 and the chuck 17, a shaft 18 is installed on the outer wall of the chuck 17, and the bolt piece 16 is located outside the shaft 18, a rotating main shaft 19 is connected to one end of the shaft 18 away from the chuck 17, the diameter of the shaft 18 is greater than the diameter of the rotating main shaft 19, a support seat 20 is sleeved on the outer wall of the rotating main shaft 19, the installation group number of the support seat 20 is two, the support seat 20 provides support for the rotating main shaft 19, and the support seat 20 is fixedly installed on the top of the base 21. The base 21 is stepped, and the support seat 20 is located on the higher plane of the base 21;

[0044] The outer wall of the shaft 18 is sleeved with a gear 1 22, and the inner wall of the gear 122 and the outer wall of the shaft 18 are provided with mutually meshing threads. The outer wall of the chuck 17 is fixedly installed with a square rod 1 23, and the square rod 1 23 is evenly distributed around the outside of the shaft 18. The square rod 1 23 is located on the outside of the connection between the chuck 17 and the bolt member 16, and the number of installation groups of the square rod 1 23 is the same as the bolt member 16. The outer wall of the square rod 1 23 is sleeved with a rod sleeve 24, and the outer wall of each group of square rods 1 23 is sleeved with two groups of rod sleeves 24. The outer wall of the rod sleeve 24 is installed with a connecting rod 25. The connecting rod 25 is embedded in the outer wall of the nut member 26 toward one end of the gear 1 22. The outer wall of the nut member 26 is provided with a guide limiting groove 2, and the connecting rod 25 is slidably connected to the inner wall of the guide limiting groove 2. The interior of the nut member 26 is meshed with the outer wall of the threaded member. The outer wall of the nut member 26 is sleeved with a gear 27. The gear 27 is located between the two groups The gear 2 27 and the gear 1 22 are engaged with each other. A mounting bracket 28 is slidably installed on the top of the base 21. The mounting bracket 28 is located on one side of the support base 20. A micro servo motor 2 29 is installed on the outer wall of the mounting bracket 28. The output end of the micro servo motor 2 29 is sleeved with a gear 30, and the gear 3 30 and the gear 1 22 are engaged with each other. A connecting rod 31 and a connecting rod 4 32 are installed on the outer wall of the mounting bracket 28. The connecting rod 3 31 and the connecting rod 4 32 are respectively located on both sides of the micro servo motor 2 29, and the left end of the connecting rod 3 31 is embedded in the outer wall of the gear 1 22. The outer wall of the gear 1 22 is provided with a limiting guide groove 3. The outer wall of the connecting rod 3 31 is slidably connected to the inner wall of the limiting guide groove 3. The left end of the connecting rod 4 32 is embedded in the outer wall of the gear 3 30. The outer wall of the gear 3 30 is provided with a limiting guide groove 4. The outer wall of the connecting rod 4 32 is slidably connected to the inner wall of the limiting guide groove 4.

[0045] Furthermore, when the mold 1 needs to be installed, the bolt 16 on the right end face of the mold 1 is passed through the mounting hole provided on the outer wall of the chuck 17, and the right end face of the mold 1 is fitted with the left end face of the chuck 17, and the micro servo motor 29 is started. The micro servo motor 29 drives the gear 3 30 to rotate, and the gear 3 30 engages with the gear 1 22, thereby driving the gear 1 22 to rotate, and the gear 1 22 is screwed to the outer wall of the shaft 18, so that the gear 1 22 moves toward the direction close to the chuck 17 while rotating, and the limiting guide groove 3 and the limiting guide groove 4 drive the connecting rod and the connecting rod 4 to move, thereby driving the mounting bracket 28 to move toward the direction close to the chuck 17, and the moving bracket drives the micro servo motor 29 and the gear 3 30 to move, so that the gear 3 30 and the gear 1 22 move synchronously. When the gear 3 30 drives the gear 1 22 to rotate, the gear The wheel 1 22 drives the gear 2 27 to rotate, and then drives the nut part 26 on the inner wall of the gear 2 27 to rotate, so that the nut part 26 moves along the outer wall of the bolt part 16 toward the direction close to the chuck 17. When the nut part 26 moves, it drives the connecting rod 25 to move through the limiting guide groove 2, and then drives the rod sleeve 24 to move along the outer wall of the square rod 1 23 toward the direction close to the chuck 17. By setting the square rod 1 23, the rod sleeve 24 and the connecting rod 2 25, it is beneficial to improve the movement stability of the nut part 26. By setting the nut part 26 to cooperate with the bolt part 16, it is convenient to fix the chuck 17 to the mold 1. The micro servo motor 2 29 provides drive and then drives the gear 3 30, gear 1 22, gear 2 27 and the nut part 26 to rotate, thereby improving the connection and disassembly efficiency between the mold 1 and the chuck 17, and improving the casting efficiency in terms of mobility.

[0046] See also Figure 1 、 Figure 6 and Figure 7 An embodiment of the present invention provides a casting device for producing extra-large pressed nut blanks for a metallurgical rolling mill, comprising a base 21 having a telescopic rod 3 47 and a guide bar 33 installed on the top thereof, the telescopic rod 3 47 and the guide bar 33 being located on the lower plane of the stepped base 21, the telescopic rod 3 47 being installed in two groups, and the two groups of telescopic rods 3 47 being located on the front and rear sides of the guide bar 33, respectively, the output end of the telescopic rod 3 47 being installed with a sliding seat 34, and the sliding seat 34 being sleeved on the outer wall of the guide bar 33, the top of the sliding seat 34 being installed with a telescopic rod 2 35, the output end of the telescopic rod 2 35 being connected to the guide bar 33. There is an adjusting frame 36, and there are two installation groups of the adjusting frames 36, and the two groups of adjusting frames 36 are arranged opposite to each other. A servo motor 38 is installed on the outer wall of the adjusting frame 36, and the output end of the servo motor 38 is connected to a rotating rod 39, and the rotating rod 39 passes through the outer wall of the adjusting frame 36. The outer wall of the rotating rod 39 is provided with two groups of rotating frames 37, and the rotating frame 37 is located between the two groups of adjusting frames 36. The inner wall of the side where the two groups of rotating frames 37 are close to each other is provided with an installation shaft 40, and the outer wall of the installation shaft 40 is provided with a supporting wheel 41, and the supporting wheel 41 is in contact with the outer wall of the mold 1, and the supporting wheel 41 is used to provide support for the mold 1.

[0047] Furthermore, the telescopic rod 3 47 pushes the sliding rod seat to move, thereby driving the telescopic rod 2 35, the adjustment frame 36, and the rotating frame 37 to move, thereby driving the supporting wheel 41 to move along the axis of the mold 1, so as to achieve the purpose of adjusting the support point of the supporting wheel 41 on the mold 1 along the axis of the mold 1. The servo motor 38 drives the rotating rod 39 to rotate, and then drives the rotating frame 37 to rotate outward through the rotating rod 39, thereby driving the supporting wheel 41 to rotate outward, so that the supporting wheel 41 is separated from the outer wall of the mold 1, and then the telescopic rod 2 35 pushes the adjustment frame 36 It moves upward, thereby driving the rotating frame 37 and the supporting wheel 41 to move upward, so that the supporting wheel 41 fits the outer wall of the mold 1 again. Compared with before the adjustment, the supporting point of the supporting wheel 41 on the mold 1 changes in the vertical plane, thereby achieving the purpose of adjusting the supporting point of the supporting wheel 41 on the mold 1 along the direction of the outer tangent of the diameter of the mold 1, thereby stabilizing the dead weight of the mold 1 and the change in the center of gravity of the mold 1 caused by the casting of the billet liquid, eliminating the safety hazards to the equipment caused by the change of the deflection center of gravity during high-speed rotation, and improving the safety of the billet casting production process.

[0048] See also Figure 8 and Figure 9 , the present invention provides an embodiment: a casting device for producing extra-large pressed nut blanks for metallurgical rolling mills, including a mounting shaft 40 with a guide groove 42 on the outer wall thereof, the guide grooves 42 being evenly distributed on the outer wall of the mounting shaft 40, the outer wall of the mounting shaft 40 being sleeved with a blade ring 44, and the blade ring 44 being located on the left side of the supporting roller 41, the outer wall of the blade ring 44 being installed with a support bar 45, the support bar 45 being close to the left end face of the blade ring 44, a conical cover 43 being installed on the right side of the supporting roller 41, and one end of the support bar 45 being connected to the inner wall of the conical cover 43, the diameter of the conical cover 43 near the supporting roller 41 being larger than the diameter near the end of the support bar 45, the outer wall of the rotating plate being penetrated by a through hole 46, the through holes 46 being arranged in a plurality of groups, and the through holes 46 being located on the outside of the mounting shaft 40.

[0049] Furthermore, the supporting wheel 41 supports the mold 1. During the rotation of the mold 1, the supporting wheel 41 is driven to rotate on the outer wall of the mounting shaft 40. During the rotation of the supporting wheel 41, the fan ring 44 is driven to rotate through the conical cover 43 and the support bar 45. The fan ring 44 drives the air flow, so that the air flows to the right through the through hole 46 and the left end of the conical cover 43. The gas is concentrated to the outside of the mounting shaft 40 and the guide groove 42 through the conical cover 43. The circulating air flows through the guide groove 42 and takes away the heat of the mounting shaft 40, thereby achieving cooling of the mounting shaft 40 of the supporting wheel 41, avoiding the phenomenon of locking of the mounting shaft 40 due to heating of the supporting wheel 41, and then hindering the rotation of the mold 1, which is conducive to ensuring the normal operation of the casting equipment.

[0050] See also Figure 1 and Figure 10, an embodiment of the present invention provides: a casting equipment for producing extra-large pressed nut blanks for metallurgical rolling mills, comprising a mold 1, an injection port is provided on the outer wall of the left end of the mold 1, a connecting pipe 2 is installed on the inner wall of the left end of the mold 1, the connecting pipe 2 is a flexible pipe, and the connecting pipe 2 meets the requirements of the batching liquid injection, the right end of the connecting pipe 2 is connected to the central cavity 3, the central cavity 3 is hollow, and thus it is convenient to throw the blank liquid out, a fixed plate 4 is installed on the inner wall of the mold 1, an adjustment hole is opened in the middle position of the fixed plate 4, an adjustment plate 5 is embedded in the interior of the fixed plate 4, and the adjustment plate 5 seals the adjustment hole, the central cavity 3 passes through the back of the adjustment plate 5, the outer wall of the central cavity 3 is installed with a block 1 6, and the block 1 6 is located on the left side of the fixed plate 4, the outer wall of the block 1 6 is installed with a block 2 7, and the block 2 7 is a square block, and an installation cavity 8 is opened inside the mold 1, The mounting cavity 8 is symmetrically arranged about the central axis of the mold 1. A protective frame 9 is slidably installed inside the mounting cavity 8. A micro servo motor 10 is installed inside the protective frame 9. The output end of the micro servo motor 10 is connected to a worm 11. The worm 11 passes through the interior of the protective frame 9 and the mounting cavity 8 and extends to the interior of the mold 1. A connecting rod 13 is installed on the outer wall of the protective frame 9. The connecting rod 13 passes through the interior of the mounting cavity 8 and extends to the interior of the mold 1. The end of the connecting rod 13 away from the protective frame 9 is connected to a mounting column 14, and the right end of the mounting column 14 is embedded in the outer wall of the fixed plate 4. The outer wall of the mounting column 14 is sleeved with a worm gear 12, and the worm gear 12 is meshed with the worm 11. The worm gear 12 is sleeved on the outer wall of the block 2 7. A telescopic rod 15 is installed on the inner wall of the mounting cavity 8. The output end of the telescopic rod 15 is connected to the outer wall of the protective frame 9.

[0051] Furthermore, when it is necessary to fine-tune the position of the central cavity 3, taking the fine-tuning of the central cavity 3 upward as an example, the telescopic rod 15 in the lower mounting cavity 8 is shortened, and the protective frame 9 is pulled to move to the left along the inner wall of the mounting cavity 8. The protective frame 9 drives the connecting rod 13 to move to the left, and then drives the mounting column 14 and the worm 11 to move to the left, so that the worm 11 is separated from the outer wall of the block 16. When the protective frame 9 moves, it drives the micro-servo motor 10 to move to the left, and then the substitute worm 11 and the worm gear 12 move to the left synchronously. After the lower worm gear 12 is separated from the block 16, the upper group of micro-servo motors 10 is started to drive the worm 11 to rotate, and then drive the worm gear 12 to rotate, and then drive the block 16 that passes through the outer wall of the worm gear 12 to rotate, and drive the central cavity 3 to move through the block 16 and the block 2 7, so as to facilitate the fine-tuning of the position of the central cavity 3 according to the casting requirements of the billet and the change of the center of gravity of the mold 1, which is beneficial to improve the casting accuracy and casting stability.

[0052] Working principle: fit the right end of the mold 1 to the left end of the chuck 17, and the bolt 16 passes through the outer wall of the chuck 17. The micro servo motor is started to drive the gear 3 30 to rotate, which drives the gear 2 27 to rotate through the gear 1 22. The gear 2 27 drives the nut 26 to rotate, so that the nut 26 is screwed with the bolt 16, and the mold 1 is fixed to the chuck 17. The telescopic rod 3 47 pushes the sliding seat 34 to move, thereby driving the supporting wheel 41 to move along the axis of the mold 1. The servo motor 3 38 drives the rotating frame 37 to rotate through the rotating rod 39, thereby driving the supporting wheel 41 to move along the axis of the mold 1. The wheel 41 rotates, and the height position of the supporting wheel 41 is adjusted through the telescopic rod 2 35, thereby adjusting the support point of the supporting wheel 41 on the mold 1, and then the driving motor 48 drives the transmission wheel 2 51 to rotate, and the transmission belt 50 and the transmission wheel 1 49 drive the rotating spindle 19 to rotate, and then drive the mold 1 to rotate, and inject the blank liquid from the injection port at the left end of the mold 1, and the blank liquid flows into the central cavity 3 through the connecting pipe 2. The centrifugal force generated by the rotation of the mold 1 is used to throw the blank liquid from the central cavity 3 to the peripheral wall of the mold 1, and it cools and solidifies as the peripheral wall of the mold 1 to form a nut blank.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A casting device for producing extra-large pressed nut blanks for metallurgical rolling mills, characterized by: The mold (1) comprises a connecting pipe (2) installed on the inner wall of the left end of the mold (1), the right end of the connecting pipe (2) is connected to the central cavity (3), a fixing plate (4) is installed on the inner wall of the mold (1), an adjusting plate (5) is embedded in the interior of the fixing plate (4), and the central wall penetrates the back of the adjusting plate (5); The outer wall of the central cavity (3) is installed with a block 1 (6), and the block 1 (6) is located on the left side of the fixed plate (4), the outer wall of the block 1 (6) is installed with a block 2 (7), the interior of the mold (1) is provided with a mounting cavity (8), the interior of the mounting cavity (8) is slidably installed with a protective frame (9), the interior of the protective frame (9) is installed with a micro servo motor 1 (10), the output end of the micro servo motor 1 (10) is connected to a worm (11), the outer wall of the protective frame (9) is installed with a connecting rod 1 (13), and The connecting rod 1 (13) passes through the interior of the installation cavity (8), and the end of the connecting rod 1 (13) away from the protective frame (9) is connected to the installation column (14), and the right end of the installation column (14) is embedded in the outer wall of the fixed plate (4). The outer wall of the installation column (14) is provided with a worm gear (12), and the worm gear (12) is engaged with the worm (11). The worm gear (12) is sleeved on the outer wall of the block 2 (7). The inner wall of the installation cavity (8) is provided with a telescopic rod 1 (15), and the output end of the telescopic rod 1 (15) is connected to the outer wall of the protective frame (9).

2. The casting equipment for producing extra-large pressed nut blanks for metallurgical rolling mills according to claim 1, characterized in that: A bolt member (16) is installed at the right end of the mold (1), and a chuck (17) is sleeved on the outer wall of the bolt member (16). The bolt member (16) is used to connect the mold (1) and the chuck (17).

3. The casting equipment for producing extra-large pressed nut blanks for metallurgical rolling mills according to claim 2, characterized in that: The outer wall of the chuck (17) is provided with a shaft (18), and one end of the shaft (18) away from the chuck (17) is connected to a rotating spindle (19). The outer wall of the rotating spindle (19) is provided with a support seat (20), and the support seat (20) is fixedly installed on the top of the base (21).

4. The casting equipment for producing extra-large pressed nut blanks for metallurgical rolling mills according to claim 3, characterized in that: The outer wall of the shaft (18) is provided with a gear 1 (22), the inner wall of the gear 1 (22) and the outer wall of the shaft (18) are provided with mutually meshing threads, the outer wall of the chuck (17) is fixedly provided with a square rod 1 (23), and the square rod 1 (23) is evenly distributed around the outer side of the shaft (18), the outer wall of the square rod 1 (23) is provided with a rod sleeve (24), the outer wall of the rod sleeve (24) is provided with a connecting rod 2 (25), the end of the connecting rod 2 (25) facing the gear 1 (22) is embedded in the outer wall of the nut (26), and the inner wall of the nut (26) is meshed with the outer wall of the threaded part, the outer wall of the nut (26) is provided with a gear 2 (27), and the gear The second gear (27) is engaged with the gear one (22), and the top of the base (21) is slidably mounted with a mounting frame (28), and the outer wall of the mounting frame (28) is mounted with a micro servo motor two (29), and the output end of the micro servo motor two (29) is provided with a gear three (30), and the gear three (30) is engaged with the gear one (22), and the outer wall of the mounting frame (28) is mounted with a connecting rod three (31) and a connecting rod four (32), and the connecting rod three (31) and the connecting rod four (32) are respectively located on both sides of the micro servo motor two (29), and the left end of the connecting rod three (31) is embedded in the outer wall of the gear one (22), and the left end of the connecting rod four is embedded in the outer wall of the gear three (30).

5. The casting equipment for producing extra-large pressed nut blanks for metallurgical rolling mills according to claim 4, characterized in that: The top of the base (21) is equipped with a telescopic rod 3 (47) and a guide bar (33). The telescopic rod 3 (47) is located at the front and rear sides of the guide bar (33). The output end of the telescopic rod 3 (47) is equipped with a sliding seat (34), and the sliding seat (34) is sleeved on the outer wall of the guide bar (33). The top of the sliding seat (34) is equipped with a telescopic rod 2 (35). The output end of the telescopic rod 2 (35) is connected to an adjustment frame (36). The number of installation groups of the adjustment frame (36) is two. The outer wall of the adjustment frame (36) is A servo motor (38) is installed, and the output end of the servo motor (38) is connected to a rotating rod (39), and the rotating rod (39) passes through the outer wall of the adjustment frame (36). The outer wall of the rotating rod (39) is provided with two groups of rotating frames (37), and the rotating frames (37) are located between the two groups of adjustment frames (36). The inner wall of the two groups of rotating frames (37) on the side close to each other is provided with a mounting shaft (40), and the outer wall of the mounting shaft (40) is provided with a supporting wheel (41), and the supporting wheel (41) is in contact with the outer wall of the mold (1).

6. The casting equipment for producing extra-large pressed nut blanks for metallurgical rolling mills according to claim 5, characterized in that: The outer wall of the mounting shaft (40) is provided with a guide groove (42), the outer wall of the mounting shaft (40) is provided with a blade ring (44), and the blade ring (44) is located on the left side of the supporting wheel (41), the outer wall of the blade ring (44) is provided with a support bar (45), the right side of the supporting wheel (41) is provided with a cone cover (43), and one end of the support bar (45) is connected to the inner wall of the cone cover (43), and the outer wall of the rotating plate is provided with a through hole (46), and the through hole (46) is located outside the mounting shaft (40).

7. The casting equipment for producing extra-large pressed nut blanks for metallurgical rolling mills according to claim 5, characterized in that: The outer wall of the rotating main shaft (19) is covered with a transmission wheel (49), and the transmission wheel (49) is located on the right side of the shaft (18).

8. The casting equipment for producing extra-large pressed nut blanks for metallurgical rolling mills according to claim 7, characterized in that: A driving motor (48) is installed on the top of the base (21), and a second transmission wheel (51) is sleeved on the outer wall of the output end of the driving motor (48), and a transmission belt (50) is sleeved on the outer wall of the second transmission wheel (51), and the transmission belt (50) is sleeved on the outer wall of the first transmission wheel (49).

9. A process for producing extra-large pressed nut blanks for metallurgical rolling mills, suitable for the casting equipment for producing extra-large pressed nut blanks for metallurgical rolling mills as claimed in claim 8, characterized in that: The nut blank production process is as follows: S1. Fit the right end of the mold (1) to the left end of the chuck (17), and insert the bolt (16) through the outer wall of the chuck (17). Start the micro servo motor to drive the gear 3 (30) to rotate, which in turn drives the gear 2 (27) to rotate through the gear 1 (22). The gear 2 (27) drives the nut (26) to rotate, so that the nut (26) and the bolt (16) are screwed together, thereby fixing the mold (1) and the chuck (17). S2, the telescopic rod three (47) pushes the sliding seat (34) to move, thereby driving the supporting wheel (41) to move along the axis direction of the mold (1), the servo motor three (38) drives the rotating frame (37) to rotate through the rotating rod (39), thereby driving the supporting wheel (41) to rotate, and the height position of the supporting wheel (41) is adjusted through the telescopic rod two (35), thereby adjusting the support point of the supporting wheel (41) on the mold (1); S3, the driving motor (48) drives the second transmission wheel (51) to rotate, and the transmission belt (50) and the first transmission wheel (49) drive the rotating main shaft (19) to rotate, thereby driving the mold (1) to rotate; S4. The blank liquid is injected from the injection port at the left end of the mold (1). The blank liquid flows into the central cavity (3) through the connecting pipe (2). The centrifugal force generated by the rotation of the mold (1) is used to throw the blank liquid from the central cavity (3) to the peripheral wall of the mold (1). The blank liquid is cooled and solidified along with the peripheral wall of the mold (1), thereby forming a nut blank.

10. A casting process for producing extra-large pressed nut blanks for metallurgical rolling mills according to claim 9, characterized in that: In S4, the following steps are also included: S41. Separate one set of worm gears (12) from block 2 (7), and use micro servo motor 1 (10) to drive the worm (11) to rotate, thereby driving another set of worm gears (12) to rotate, and drive the central cavity (3) to move through block 2 (7) and block 1 (6), and fine-tune the position of the central cavity (3).

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