A casting equipment and process for producing a large-sized screw-down nut blank for a metallurgical rolling mill

Abstract

The application discloses a casting equipment and process for producing a super-large screw-down nut blank for a metallurgical rolling mill, and relates to the technical field of nut blank casting. The equipment comprises a mold, a connecting pipe is installed on the inner wall of the left end of the mold, a central cavity is connected to the right end of the connecting pipe, a block one is installed on the outer wall of the central cavity, a protection frame is installed on the outer wall of the block one, a connecting rod one is installed on the outer wall of the protection frame, an installation column is connected to one end of the connecting rod one, a worm gear is sleeved on the outer wall of the installation column, and the worm gear is sleeved on the outer wall of a block two. The mold is arranged, the telescopic rod one is shortened to pull a group of protection frames to move backward, the micro servo motor one in another group of protection frames is started to drive the worm to rotate, the worm gear is driven to rotate, the block one penetrating through the outer wall of the worm gear is driven to rotate, the central cavity is driven to move through the block one and the block two, the position of the central cavity is fine-tuned according to the blank casting requirements and the change of the gravity center of the mold, the casting precision and the casting stability are improved, and the casting precision and the casting stability are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nut blank casting, in particular to a casting equipment and process for producing a large-scale screw-down nut blank for a metallurgical rolling mill. BACKGROUND

[0002] The large-scale screw-down nut is used for pipe fittings in the metallurgical industry. The nut body is large and heavy, and it is a large-weight casting. In order to ensure the product quality of the nut blank, a centrifugal casting process is required during production. However, the existing centrifugal casting device for the nut blank is inconvenient to adjust the blank liquid output position according to the casting requirements and the change of the center of gravity of the mold, and is inconvenient to stably support the mold, which reduces the blank production precision and the safety of the casting production process.

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

[0004] 1. The application file CN114603098A does not consider how to fine-tune the blank liquid output position, how to facilitate the nut casting forming, and how to improve the efficiency;

[0005] 2. The patent file CN113351845A mainly considers how to realize the demolding process of the casting in the mold, and does not consider how to improve the disassembly convenience and efficiency of the mold;

[0006] 3. The patent file CN110899649B mainly considers how to solve the problem of accumulation of pouring liquid, and does not consider how to provide stable support for the mold during the centrifugal casting process. SUMMARY

[0007] The present application aims to provide a casting equipment and process for producing a large-scale screw-down nut blank for a metallurgical rolling mill to solve the problems raised in the background art.

[0008] To achieve the above-mentioned purpose, the present application provides the following technical solution: a casting equipment for producing a large-scale screw-down nut blank for a metallurgical rolling mill, comprising a mold, a connecting pipe is installed on the left end inner wall of the mold, a center cavity is connected to the right end of the connecting pipe, a fixed plate is installed on the inner wall of the mold, an adjusting plate is embedded and installed in the inside of the fixed plate, and the center cavity penetrates the back surface of the adjusting plate;

[0009] The outer wall of the center cavity is provided with a block one, and the block one is located at the left side of the fixed plate, the outer wall of the block one is provided with a block two, the inside of the mold is provided with a mounting cavity, the inside of the mounting cavity is slidably provided with a protection frame, the inside of the protection frame is provided with a micro servo motor one, the output end of the micro servo motor one is connected with a worm, the outer wall of the protection frame is provided with a connecting rod one, and the connecting rod one penetrates the inside of the mounting cavity, one end of the connecting rod one away from the protection frame is connected with a mounting column, and the right end of the mounting column is embedded in the outer wall of the fixed plate, the outer wall of the mounting column is provided with a worm wheel, and the worm wheel is engaged with the worm, the worm wheel is provided on the outer wall of the block two, the inner wall of the mounting cavity is provided with a telescopic rod one, and the output end of the telescopic rod one is connected with the outer wall of the protection frame.

[0010] Preferably, the right end of the mold is provided with a bolt, and the outer wall of the bolt is provided with a chuck, and the bolt is used for connecting the mold and the chuck.

[0011] Preferably, the outer wall of the chuck is provided with a shaft, one end of the shaft away from the chuck is connected with a rotating spindle, the outer wall of the rotating spindle is provided 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 provided with a gear one, the inner wall of the gear one and the outer wall of the shaft are provided with threads engaged with each other, the outer wall of the chuck is fixedly provided with a square rod one, and the square rod one is uniformly distributed around the outer side of the shaft, the outer wall of the square rod one is provided with a rod sleeve, the outer wall of the rod sleeve is provided with a connecting rod two, one end of the connecting rod two away from the gear one is embedded in the outer wall of a nut, and the inside of the nut is engaged with the outer wall of the threaded part, the outer wall of the nut is provided with a gear two, and the gear two is engaged with the gear one, the top of the base is slidably provided with a mounting frame, the outer wall of the mounting frame is provided with a micro servo motor two, the output end of the micro servo motor two is provided with a gear three, and the gear three is engaged with the gear one, the outer wall of the mounting frame is provided with a connecting rod three and a connecting rod four, the connecting rod three and the connecting rod four are respectively located on the two sides of the micro servo motor two, and the left end of the connecting rod three is embedded in the outer wall of the gear one, and the left end of the connecting rod four is embedded in the outer wall of the gear three.

[0013] Preferably, the top of the base is provided with a telescopic rod three and a guide strip, the telescopic rod three is located on the front and back of the guide strip, the output end of the telescopic rod three is provided with a sliding seat, and the sliding seat is provided on the outer wall of the guide strip, the top of the sliding seat is provided with a telescopic rod two, the output end of the telescopic rod two is connected with an adjusting frame, the number of the adjusting frame is two, the outer wall of the adjusting frame is provided with a servo motor three, the output end of the servo motor three is connected with a rotating rod, and the rotating rod penetrates the outer wall of the adjusting frame, the outer wall of the rotating rod is provided with two groups of rotating frames, and the rotating frames are located between the two groups of adjusting frames, the inner wall of one side of the two groups of rotating frames close to each other is provided with a mounting shaft, the outer wall of the mounting shaft is provided with a supporting wheel, and the supporting wheel is attached to 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 application is provided with a mold, a center cavity and a worm gear, a set of protective frames is moved backward by the telescopic rod shortening, a set of worm gears and blocks are separated, a miniature servo motor in another set of protective frames is started to drive the worm gear to rotate, in turn driving the worm gear to rotate, in turn driving the block penetrating the outer wall of the worm gear to rotate, the center cavity is moved by the block one and the block two, in turn, the position of the center cavity is fine-tuned according to the blank casting requirements and the change of the center of gravity of the mold, which is beneficial to improve the casting precision and casting stability.

[0026] 2. The present application is provided with a chuck, gear one, gear two and gear three, a miniature servo motor two drives gear three to rotate, in turn driving gear one to rotate, when gear one and gear three rotate, the mounting bracket is moved by connecting rod three and connecting rod four, in turn, gear one and gear three are synchronously moved to the direction close to the chuck, gear one drives gear two to rotate, gear two drives the nut piece to rotate, when gear two and the nut piece rotate, the nut piece is moved to the direction close to the chuck by connecting rod two, rod sleeve and guide rod, and is screwed with the bolt piece, which is convenient for fixing and connecting the chuck and the mold, improves the connection and disassembly efficiency of the mold and the chuck, and improves the casting efficiency.

[0027] 3. The present application is provided with a supporting wheel, the telescopic rod three drives the sliding rod base to move, in turn driving the supporting wheel to move along the mold axis direction, realizing the purpose of adjusting the supporting point of the mold along the mold axis direction, the rotating rod is driven to rotate by the servo motor three, driving the supporting wheel to rotate outward, the adjusting frame is driven to move upward by the telescopic rod two, in turn driving the rotating frame and the supporting wheel to move upward, so that the supporting wheel is attached to the outer wall of the mold again, the supporting point changes in the vertical plane, realizing the purpose of adjusting the supporting point of the mold along the diameter of the mold, thereby stabilizing the mold weight and the change of the mold center of gravity when the blank casting blank is poured, eliminating the safety hazard caused by the deflection center of gravity when rotating at high speed, and improving the safety in the blank casting production process.

[0028] 4. The present application is provided with a fan sleeve, the fan ring is driven to rotate by the conical cover and the supporting strip during the rotation of the supporting wheel, the fan ring drives the air flow, the air flows to the right side through the through hole and the left end of the conical cover, the gas is concentrated to the outside of the installation shaft and the flow guide groove by the conical cover, the flowing air carries away the heat of the installation shaft through the flow guide groove, thereby realizing the cooling of the installation shaft of the supporting wheel, avoiding the phenomenon that the installation shaft of the supporting wheel is overheated and stuck, in turn, the phenomenon that the mold rotation is hindered is avoided, which is beneficial to ensure the normal operation of the casting equipment. BRIEF DESCRIPTION OF DRAWINGS

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

[0030] Figure 2The schematic view of the chuck structure of the present application;

[0031] Figure 3 The schematic view of the gear one and gear two engagement of the present application;

[0032] Figure 4 The schematic view of the gear three and gear one engagement of the present application;

[0033] Figure 5 The schematic view of the mounting frame structure of the present application;

[0034] Figure 6 The schematic view of the supporting wheel structure of the present application;

[0035] Figure 7 The schematic view of the adjusting frame structure of the present application;

[0036] Figure 8 The schematic view of the conical cover structure of the present application;

[0037] Figure 9 The schematic view of the flow guide groove structure of the present application;

[0038] Figure 10 The schematic view of the mold structure of the present application.

[0039] In the figure: 1, mold; 2, connecting pipe; 3, central cavity; 4, fixed plate; 5, adjusting plate; 6, block one; 7, block two; 8, mounting cavity; 9, protection frame; 10, micro servo motor one; 11, worm; 12, worm wheel; 13, connecting rod one; 14, mounting column; 15, telescopic rod one; 16, bolt; 17, chuck; 18, shaft; 19, rotating main shaft; 20, supporting seat; 21, base; 22, gear one; 23, square rod one; 24, rod sleeve; 25, connecting rod two; 26, nut; 27, gear two; 28, mounting frame; 29, micro servo motor two; 30, gear three; 31, connecting rod three; 32, connecting rod four; 33, guide bar; 34, sliding seat; 35, telescopic rod two; 36, adjusting frame; 37, rotating frame; 38, servo motor three; 39, rotating rod; 40, mounting shaft; 41, supporting wheel; 42, flow guide groove; 43, conical cover; 44, fan ring; 45, supporting bar; 46, through hole; 47, telescopic rod three; 48, driving motor; 49, transmission wheel one; 50, transmission belt; 51, transmission wheel two. 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 one 22, the inner wall of the gear one 22 is provided with a thread which is engaged with the outer wall of the shaft 18, the outer wall of the chuck 17 is fixedly installed with square bars one 23, and the square bars one 23 are evenly distributed around the outer side of the shaft 18, the square bars one 23 are located outside the connecting place of the chuck 17 and the bolt piece 16, the installation number of the square bars one 23 is same as that of the bolt piece 16, the outer wall of the square bars one 23 is sleeved with a rod sleeve 24, the outer wall of each group of square bars one 23 is sleeved with two groups of rod sleeves 24, the outer wall of the rod sleeve 24 is installed with a connecting rod two 25, one end of the connecting rod two 25 towards the gear one 22 is embedded and connected to the outer wall of a nut piece 26, the outer wall of the nut piece 26 is provided with a guide limiting groove two, and the connecting rod two 25 is slidingly connected with the inner wall of the guide limiting groove two, the inner part of the nut piece 26 is engaged with the outer wall of the thread piece, the outer wall of the nut piece 26 is sleeved with a gear two 27, the gear two 27 is located between the two groups of rod sleeves 24, and the gear two 27 is engaged with the gear one 22, the top of the base 21 is slidingly installed with a mounting frame 28, the mounting frame 28 is located at one side of the supporting seat 20, the outer wall of the mounting frame 28 is installed with a micro servo motor two 29, the output end of the micro servo motor two 29 is sleeved with a gear three 30, and the gear three 30 is engaged with the gear one 22, the outer wall of the mounting frame 28 is installed with a connecting rod three 31 and a connecting rod four 32, the connecting rod three 31 and the connecting rod four 32 are respectively located at two sides of the micro servo motor two 29, and the left end of the connecting rod three 31 is embedded and connected to the outer wall of the gear one 22, the outer wall of the gear one 22 is provided with a limiting guide groove three, the outer wall of the connecting rod three 31 is slidingly connected with the inner wall of the limiting guide groove three, the left end of the connecting rod four 32 is embedded and connected to the outer wall of the gear three 30, the outer wall of the gear three 30 is provided with a limiting guide groove four, and the outer wall of the connecting rod four 32 is slidingly connected with the inner wall of the limiting guide groove four.

[0045] Further, when the mold 1 needs to be installed, the bolt part 16 at the right end face of the mold 1 is penetrated through the installation hole formed in the outer wall of the chuck 17, the right end face of the mold 1 is attached to the left end face of the chuck 17, the miniature servo motor two 29 is started, the miniature servo motor two 29 drives the gear three 30 to rotate, the gear three 30 is engaged with the gear one 22, thereby driving the gear one 22 to rotate, and the gear one 22 is screwed with the outer wall of the shaft rod 18, so that the gear one 22 moves towards the chuck 17 while rotating, the limiting guide groove three and the limiting guide groove four drive the connecting rod and the connecting four to move, thereby driving the mounting frame 28 to move towards the chuck 17, the moving frame drives the miniature servo motor two 29 and the gear three 30 to move, so that the gear three 30 and the gear one 22 move synchronously, when the gear three 30 drives the gear one 22 to rotate, the gear one 22 drives the gear two 27 to rotate, thereby driving the nut part 26 at the inner wall of the gear two 27 to rotate, so that the nut part 26 moves along the outer wall of the bolt part 16 towards the chuck 17, when the nut part 26 moves, the connecting rod two 25 is driven to move by the limiting guide groove two, thereby driving the rod sleeve 24 to move along the outer wall of the square rod one 23 towards the chuck 17, by arranging the square rod one 23, the rod sleeve 24 and the connecting rod two 25, the movement stability of the nut part 26 is improved, by arranging the nut part 26 and the bolt part 16, the chuck 17 and the mold 1 are conveniently fixed and connected, by the miniature servo motor two 29 providing driving and thereby driving the gear three 30, the gear one 22, the gear two 27 and the nut part 26 to rotate, the connection and dismounting efficiency of the mold 1 and the chuck 17 is improved, and the casting efficiency is improved in the moving degree.

[0046] Please refer to Figure 1 , Figure 6 and Figure 7 , an embodiment provided by the present application: a kind of casting equipment for producing extra-large screw nut blank of metallurgical rolling mill, including the top of base 21 is equipped with telescopic rod three 47 and guide strip 33, telescopic rod three 47 and guide strip 33 are located in the shorter plane of the stepped base 21, the installation group number of telescopic rod three 47 is two, and two telescopic rod three 47 are located at the front and back of guide strip 33 respectively, the output end of telescopic rod three 47 is equipped with sliding seat 34, and sliding seat 34 is sleeved on the outer wall of guide strip 33, the top of sliding seat 34 is equipped with telescopic rod two 35, the output end of telescopic rod two 35 is connected with adjusting frame 36, the installation group number of adjusting frame 36 is two, and two adjusting frames 36 are oppositely arranged, servo motor three 38 is installed on the outer wall of adjusting frame 36, the output end of servo motor three 38 is connected with rotating rod 39, and rotating rod 39 penetrates the outer wall of adjusting frame 36, the outer wall of rotating rod 39 is sleeved with two sets of rotating frame 37, and rotating frame 37 is located between the two sets of adjusting frames 36, the inner wall of the side of two sets of rotating frame 37 close to each other is equipped with mounting shaft 40, the outer wall of mounting shaft 40 is sleeved with supporting wheel 41, and supporting wheel 41 is attached to the outer wall of mold 1, and supporting wheel 41 is used to support mold 1.

[0047] Further, the telescopic rod three 47 pushes the sliding rod seat to move, thereby driving the telescopic rod two 35, the adjusting frame 36 and the rotating frame 37 to move, so as to drive the supporting wheel 41 to move along the axis direction of the mold 1, so as to realize the purpose of adjusting the supporting point of the supporting wheel 41 to the mold 1 along the axis direction of the mold 1, the servo motor three 38 drives the rotating rod 39 to rotate, and then the rotating rod 39 drives the rotating frame 37 to rotate outward, so as to drive 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 two 35 pushes the adjusting frame 36 to move upward, thereby driving the rotating frame 37 and the supporting wheel 41 to move upward, so that the supporting wheel 41 is again attached to the outer wall of the mold 1, and the supporting point of the supporting wheel 41 to the mold 1 changes in the vertical plane, so as to realize the purpose of adjusting the supporting point of the supporting wheel 41 to the mold 1 along the diameter of the mold 1, so as to stabilize the change of the gravity center of the mold 1 under the self weight and the casting blank, eliminate the safety hidden danger caused by the change of the gravity center when the deflection changes at high speed, and improve the safety in the blank casting production process.

[0048] Please refer to Figure 8 and Figure 9 , the application provides an embodiment: a large-scale press-down nut blank production casting equipment for a metallurgical rolling mill, which comprises an installation shaft 40, a flow guide groove 42 is formed in the outer wall of the installation shaft 40, the flow guide grooves 42 are uniformly distributed on the outer wall of the installation shaft 40, a fan ring 44 is arranged on the outer wall of the installation shaft 40, the fan ring 44 is located on the left side of the supporting wheel 41, a supporting strip 45 is arranged on the outer wall of the fan ring 44, the supporting strip 45 is close to the left end face of the fan ring 44, a conical cover 43 is arranged on the right side of the supporting wheel 41, one end of the supporting strip 45 is connected with the inner wall of the conical cover 43, the diameter of the conical cover 43 close to one end of the supporting wheel 41 is larger than the diameter close to one end of the supporting strip 45, a through hole 46 is formed in the outer wall of the rotating plate, the through holes 46 are arranged in a plurality of groups, and the through holes 46 are located on the outer side of the installation shaft 40.

[0049] Further, the supporting wheel 41 supports the mold 1, and drives the supporting wheel 41 to rotate on the outer wall of the installation shaft 40 in the rotating process of the mold 1, the supporting wheel 41 drives the fan ring 44 to rotate through the conical cover 43 and the supporting strip 45 in the rotating process of the supporting wheel 41, the fan ring 44 drives the air flow, so that the air flows to the right side through the through hole 46 and the left end of the conical cover 43, the gas is concentrated to the outer side of the installation shaft 40 and the flow guide groove 42 through the conical cover 43, and the flowing air carries away the heat of the installation shaft 40 through the flow guide groove 42, so as to realize the cooling of the installation shaft 40 of the supporting wheel 41, avoid the phenomenon that the installation shaft 40 of the supporting wheel 41 is heated and stuck, and further avoid the phenomenon that the rotation of the mold 1 is hindered, which is beneficial to ensure the normal operation of the casting equipment.

[0050] Please refer to Figure 1 and Figure 10The application provides a casting equipment for producing a large-scale screw-down nut blank for a metallurgical rolling mill, which comprises a mold 1, an injection port is arranged 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 meets the injection requirement of the blank liquid, a central cavity 3 is connected to the right end of the connecting pipe 2, the central cavity 3 is hollow, so that the blank liquid can be thrown outwards conveniently, a fixed plate 4 is installed on the inner wall of the mold 1, an adjusting hole is formed in the middle position of the fixed plate 4, an adjusting plate 5 is embeddedly installed in the fixed plate 4 and seals the adjusting hole, the central cavity 3 penetrates through the back surface of the adjusting plate 5, a block one 6 is installed on the outer wall of the central cavity 3 and located on the left side of the fixed plate 4, a block two 7 is installed on the outer wall of the block one 6 and is a square block, an installation cavity 8 is formed in the mold 1 and is symmetrically arranged about the central axis of the mold 1, a protection frame 9 is slidingly installed in the installation cavity 8, a micro servo motor one 10 is installed in the protection frame 9, a worm 11 is connected to the output end of the micro servo motor one 10, the worm 11 penetrates through the inside of the protection frame 9 and the installation cavity 8 and extends into the inside of the mold 1, a connecting rod one 13 is installed on the outer wall of the protection frame 9 and penetrates through the inside of the installation cavity 8 and extends into the inside of the mold 1, an installation column 14 is connected to the end of the connecting rod one 13 away from the protection frame 9 and is embeddedly connected to the outer wall of the fixed plate 4, a worm wheel 12 is sleeved on the outer wall of the installation column 14 and is engaged with the worm 11, the worm wheel 12 is sleeved on the outer wall of the block two 7, a telescopic rod one 15 is installed on the inner wall of the installation cavity 8 and connected to the outer wall of the protection frame 9.

[0051] Further, when the position of the central cavity 3 needs to be finely adjusted, taking the example of finely adjusting the central cavity 3 upwards, the telescopic rod one 15 in the lower installation cavity 8 is started to shorten, the protection frame 9 is pulled to move leftwards along the inner wall of the installation cavity 8, the protection frame 9 drives the connecting rod one 13 to move leftwards, thereby driving the installation column 14 and the worm 11 to move leftwards, so that the worm 11 is separated from the outer wall of the block one 6, when the protection frame 9 moves, the micro servo motor one 10 is driven to move leftwards, thereby driving the worm 11 and the worm wheel 12 to synchronously move leftwards, after the lower worm wheel 12 is separated from the block one 6, the upper group of micro servo motors one 10 are started to drive the worm 11 to rotate, thereby driving the worm wheel 12 to rotate, thereby driving the block one 6 penetrating through the outer wall of the worm wheel 12 to rotate, the block one 6 and the block two 7 drive the central cavity 3 to move, thereby conveniently finely adjusting the position of the central cavity 3 according to the blank casting requirement and the change of the center of gravity of the mold 1, which is beneficial to improve the casting precision and the casting stability.

[0052] Working principle: the right end of the mold 1 and chuck 17 left end, and bolt 16 through the chuck 17 outer wall, micro servo motor start, drive gear three 30 rotation, through gear one 22 drive gear two 27 rotation, gear two 27 drive nut piece 26 rotation, make nut piece 26 and bolt 16 screw connection, the mold 1 and chuck 17 fixed connection, telescopic rod three 47 push slide seat 34 move, thus drive the supporting wheel 41 along the mold 1 axis direction moves, servo motor three 38 through the rotating rod 39 drive rotating frame 37 rotation, thus drive the supporting wheel 41 rotation, through telescopic rod two 35 adjust the height position of supporting wheel 41, thus adjust the supporting point of supporting wheel 41 to the mold 1, again through the drive motor 48 drive transmission wheel two 51 rotation, through the transmission belt 50 and transmission wheel one 49 drive rotating spindle 19 rotation, in turn drive the mold 1 rotation, from the mold 1 left end injection inlet injection blank liquid, blank liquid through the connecting pipe 2 flow into the center cavity 3, using the mold 1 rotation generated centrifugal force will blank liquid from the center cavity 3 to the mold 1 wall, with the mold 1 wall cooling solidification, form nut blank.

[0053] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics of the present application. The presently disclosed embodiments are therefore considered in all respects to be illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalents of the claims are therefore intended to be embraced herein. No reference signs in the claims shall be construed as limiting the scope of the claims.

Claims

1. A casting plant for the production of extra-large screw-down nut blanks for metallurgical rolling mills, characterized in that: Including mould (1), the left end inner wall of mould (1) is installed with connecting pipe (2), the right end of connecting pipe (2) is connected with center cavity (3), the inner wall of mould (1) is installed with fixed plate (4), the inside of fixed plate (4) is embedded with adjusting plate (5), and center cavity penetrates the back of adjusting plate (5); The outer wall of center cavity (3) is installed with block one (6), and block one (6) is located at the left side of fixed plate (4), the outer wall of block one (6) is installed with block two (7), the inside of mould (1) is provided with installation cavity (8), the inside of installation cavity (8) is slidably installed with protection frame (9), the inside of protection frame (9) is installed with micro servo motor one (10), the output end of micro servo motor one (10) is connected with worm (11), the outer wall of protection frame (9) is installed with connecting rod one (13), and connecting rod one (13) penetrates the inside of installation cavity (8), one end of connecting rod one (13) away from protection frame (9) is connected with mounting column (14), and the right end of mounting column (14) is embeddedly connected to the outer wall of fixed plate (4), the outer wall of mounting column (14) is sleeved with worm wheel (12), and worm wheel (12) is engaged with worm (11), worm wheel (12) is sleeved on the outer wall of block two (7), the inner wall of installation cavity (8) is installed with telescopic rod one (15), and the output end of telescopic rod one (15) is connected with the outer wall of protection frame (9); The right end of mould (1) is installed with bolt piece (16), the outer wall of bolt piece (16) is sleeved with chuck (17), and bolt piece (16) is used for connecting mould (1) and chuck (17); The outer wall of chuck (17) is installed with shaft (18), one end of shaft (18) away from chuck (17) is connected with rotating main shaft (19), the outer wall of rotating main shaft (19) is sleeved with support seat (20), and support seat (20) is fixedly installed on the top of base (21). The outer wall of the shaft rod (18) is sleeved with a gear one (22), the inner wall of the gear one (22) and the outer wall of the shaft rod (18) are provided with intermeshing threads, the outer wall of the chuck (17) is fixedly installed with square rods one (23), and the square rods one (23) are uniformly distributed around the outer side of the shaft rod (18), the outer wall of the square rod one (23) is sleeved with a rod sleeve (24), the outer wall of the rod sleeve (24) is installed with a connecting rod two (25), one end of the connecting rod two (25) towards the gear one (22) is embeddedly connected to the outer wall of a nut member (26), the inside of the nut member (26) is engagedly connected with the outer wall of the threaded member, the outer wall of the nut member (26) is sleeved with a gear two (27), and the gear two (27) and the gear one (22) are mutually engaged, the top of the base (21) is slidably installed with a mounting frame (28), the outer wall of the mounting frame (28) is installed with a micro servo motor two (29), the output end of the micro servo motor two (29) is sleeved with a gear three (30), and the gear three (30) and the gear one (22) are mutually engaged, the outer wall of the mounting frame (28) is installed with a connecting rod three (31) and a connecting rod four (32), the connecting rod three (31) and the connecting rod four (32) are respectively located on the two sides of the micro servo motor two (29), and the left end of the connecting rod three (31) is embeddedly connected to the outer wall of the gear one (22), and the left end of the connecting rod four is embeddedly connected to the outer wall of the gear three (30).

2. A casting apparatus for producing a jumbo screw-down nut blank for a metallurgical rolling mill according to claim 1, characterized in that: The top of the base (21) is installed with an extension rod three (47) and a guide strip (33), the extension rod three (47) is located on the front and rear sides of the guide strip (33), the output end of the extension rod three (47) is installed with a sliding seat (34), the sliding seat (34) is sleeved on the outer wall of the guide strip (33), the top of the sliding seat (34) is installed with an extension rod two (35), the output end of the extension rod two (35) is connected with an adjusting frame (36), the installation group number of the adjusting frame (36) is two, the outer wall of the adjusting frame (36) is installed with a servo motor three (38), the output end of the servo motor three (38) is connected with a rotating rod (39), the rotating rod (39) penetrates through the outer wall of the adjusting frame (36), the outer wall of the rotating rod (39) is sleeved with two groups of rotating frames (37), the rotating frames (37) are located between the two groups of adjusting frames (36), the inner wall of the side, which is close to each other, of the two groups of rotating frames (37) is installed with a mounting shaft (40), the outer wall of the mounting shaft (40) is sleeved with a supporting wheel (41), and the supporting wheel (41) is attached to the outer wall of the mold (1).

3. A casting plant for producing a super-large screw-down nut blank for a metallurgical rolling mill according to claim 2, characterized in that: The outer wall of the mounting shaft (40) is provided with a flow guide groove (42), the outer wall of the mounting shaft (40) is sleeved with a fan ring (44), the fan ring (44) is located on the left side of the supporting wheel (41), the outer wall of the fan ring (44) is installed with a supporting strip (45), the right side of the supporting wheel (41) is installed with a conical cover (43), one end of the supporting strip (45) is connected with the inner wall of the conical cover (43), the outer wall of the rotating plate is penetrated through a through hole (46), and the through hole (46) is located on the outer side of the mounting shaft (40).

4. A casting apparatus for producing a super-large screw-down nut blank for a metallurgical rolling mill according to claim 3, characterized in that: The outer wall of the rotating main shaft (19) is sleeved with a transmission wheel one (49), and the transmission wheel one (49) is located on the right side of the shaft rod (18).

5. A casting apparatus for producing a super-large screw-down nut blank for a metallurgical rolling mill according to claim 4, characterized in that: The top of the base (21) is provided with a driving motor (48), the output end outer wall of the driving motor (48) is sleeved with a transmission wheel two (51), the outer wall of the transmission wheel two (51) is sleeved with a transmission belt (50), and the transmission belt (50) is sleeved on the outer wall of the transmission wheel one (49).

6. A process for producing a special large screw-down nut blank for a metallurgical rolling mill, suitable for use in a casting apparatus for producing a special large screw-down nut blank for a metallurgical rolling mill according to claim 5, characterized in that, The nut blank production process is as follows: S1, the right end of the mold (1) is attached to the left end of the chuck (17), and the bolt piece (16) penetrates the outer wall of the chuck (17), the micro servo motor is started, the gear three (30) is driven to rotate, the gear one (22) is driven to rotate the gear two (27), the gear two (27) drives the nut piece (26) to rotate, the nut piece (26) is screwed with the bolt piece (16), the mold (1) and the chuck (17) are fixedly connected; S2, the telescopic rod three (47) drives 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, the height position of the supporting wheel (41) is adjusted through the telescopic rod two (35), thereby adjusting the supporting point of the supporting wheel (41) to the mold (1); S3, the driving motor (48) drives the transmission wheel two (51) to rotate, the transmission belt (50) and the transmission wheel one (49) drive the rotating main shaft (19) to rotate, and then drive 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 center cavity (3) through the connecting pipe (2), and the centrifugal force generated by the rotation of the mold (1) is used to throw the blank liquid from the center cavity (3) to the peripheral wall of the mold (1), and the peripheral wall of the mold (1) is cooled and solidified to form the nut blank.

7. A casting process for producing a super-large screw-down nut blank for a metallurgical rolling mill according to claim 6, characterized in that, In S4, the following steps are further included: S41, a group of worm gears (12) are separated from the block two (7), the worm (11) is driven to rotate by the micro servo motor one (10), thereby driving another group of worm gears (12) to rotate, the center cavity (3) is driven to move by the block two (7) and the block one (6), and the position of the center cavity (3) is finely adjusted.

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