CN113814376A - Molding tool and molding process for improving position and size precision of large slag pot lifting lug - Google Patents
Molding tool and molding process for improving position and size precision of large slag pot lifting lug Download PDFInfo
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- CN113814376A CN113814376A CN202111086931.4A CN202111086931A CN113814376A CN 113814376 A CN113814376 A CN 113814376A CN 202111086931 A CN202111086931 A CN 202111086931A CN 113814376 A CN113814376 A CN 113814376A
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Abstract
The invention discloses a modeling tool and a modeling process for improving the position and the size precision of a lug of a large slag ladle, and the modeling tool and the modeling process comprise a lower lug tool and an upper lug tool, wherein the lower lug tool is arranged on a bottom box sand box, a middle box sand box is superposed on the bottom box sand box, an upper lug tool support is also arranged above the middle box sand box, at least one adjusting screw rod is arranged on the upper lug tool support, one end of the adjusting screw rod extends upwards out of the upper lug tool support, and the other end of the adjusting screw rod extends downwards and is connected with the upper lug tool; the modeling tool is simple in structure and easy to manufacture and use, and a targeted simple tool developed by determining the position size of the lifting lug of the slag pot product only needs to place the lifting lug on the lifting lug tool and detect and adjust the relevant position size in the modeling process.
Description
Technical Field
The invention relates to the technical field of ingot mold casting, in particular to a molding tool and a molding process for improving the position dimensional accuracy of a large slag ladle lifting lug.
Background
The steel mill is with large-scale slag ladle size for 4.8 meters and the unit weight more than 20T, and traditional slag ladle molding lug mounting means is for adopting the loose piece to reserve the lug mounted position on the model, adopts resin sand molding to take out the loose piece and lay the lug after having accomplished, because of steel lug is bulky heavy, is unfavorable for the lug after the molding to lay the operation on the one hand, and on the other hand lug mounting dimension precision can' T obtain effectively guaranteeing.
For example, in the patent application of the Chinese patent application (publication number: CN113319252A), in 2021, an ultra-large slag pot manufacturing method is disclosed, wherein a slag pot body is produced by casting, trunnions are produced by forging and machining, and the trunnions are installed by cold-insert assembly and interference fit.
Disclosure of Invention
The invention aims to provide a molding tool and a molding process for improving the position and the size precision of a large slag pot lifting lug, aiming at the problems in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
the modeling tool for improving the position and size accuracy of the lifting lugs of the large slag pot comprises a lower lifting lug tool and an upper lifting lug tool which are matched in a set, wherein the lower lifting lug tool is provided with a clamping groove for clamping and supporting the lower lifting lug, and the upper lifting lug tool is provided with a plurality of clamping grooves for clamping and supporting the upper lifting lug; the lower lifting lug tool is arranged on the bottom box sand box, the middle box sand box is arranged on the bottom box sand box in an overlapping mode, an upper lifting lug tool support is further arranged above the middle box sand box, the upper lifting lug tool support stretches across the upper end face of the middle box sand box and is arranged in parallel to a pair of center connecting lines of the upper lifting lugs, at least one adjusting screw rod is arranged on the upper lifting lug tool support, one end of each adjusting screw rod extends upwards out of the upper lifting lug tool support, and the other end of each adjusting screw rod extends downwards and is connected with the upper lifting lug tool.
The modeling tool is simple in structure and easy to manufacture and use, and a targeted simple tool developed by determining the position size of the lifting lug of the slag pot product only needs to place the lifting lug on the lifting lug tool and detect and adjust the relevant position size in the modeling process.
The working principle of the modeling tool is as follows: before modeling, the lifting lugs are placed on a lifting lug tool and respectively lifted to the relative positions of the slag pot die, and the size of the tool in each direction is adjusted in a moving way, so that the requirement of a drawing is met; the sizes of the lifting lugs of the slag pot casting products after molding and pouring are detected, and the sizes and the positions of the lifting lugs all meet the requirements of drawings.
Compared with the traditional process, the process is simple and convenient to operate and quick, the complex process that the lugs are placed in the sand mold by taking out the loose pieces in the later stage is reduced, the tool is qualified in repeated use result for many times, has better practicability and use reliability, is applicable to process installation of the lugs of the slag pots of the same type, and solves the problem that the position and the size of the lugs of the large slag pot are high and the traditional process cannot meet the requirements.
The lower lifting lug tool and the upper lifting lug tool are arranged separately, the adjustment of the lower lifting lug tool and the upper lifting lug tool is not influenced mutually, and the clamping groove can be used for connecting and fixing the upper lifting lug and the lower lifting lug; the upper lifting lug tool can be temporarily fixed in the process of placement by using the upper lifting lug tool support and the adjusting screw, various moving adjustments of the upper lifting lug tool are facilitated, sand is not filled in the middle box sand box in the adjusting process, and the operation is very easy; and in the subsequent sand filling process, fine adjustment can be performed, the upper lifting lug tool bracket and the screw rod can be taken out when the resin sand is wrapped and covers the upper lifting lug tool, and the hardened resin sand can keep the positions of the upper lifting lug and the upper lifting lug tool unchanged.
Furthermore, the upper lifting lug tool and the lower lifting lug tool are symmetrically arranged, a large slag pot mould is arranged in a region between the lower lifting lug tool, and the inner end faces of the lower lifting lug and the upper lifting lug are respectively abutted to the side wall of the large slag pot mould.
Namely, the lifting lugs are symmetrically arranged on two sides of the large slag pot mould, and the mounting and position adjusting methods of the lifting lugs on the two sides are basically the same.
Furthermore, the upper lifting lug is provided with two clamping grooves, the three clamping grooves on each side are distributed in an inverted triangle shape, and the openings of the clamping grooves are arranged upwards.
Furthermore, the upper lifting lug tool and the lower lifting lug tool are both trapezoidal metal blocks, and the length dimension of the lower lifting lug tool is smaller than that of the upper lifting lug tool.
The metal block is adopted for better structural stability, and can resist high temperature and corrosion, so that the metal block can be reused after shakeout cleaning.
Furthermore, the clamping grooves are semicircular grooves, and the upper lifting lug or the trunnion of the lower lifting lug is clamped in the semicircular grooves respectively.
Furthermore, the adjusting screws are symmetrically arranged, the end parts of the adjusting screws are respectively connected to the upper lifting lug tool support and close to the clamping groove, and adjusting nuts are respectively sleeved on the upper end parts of the adjusting screws.
The position of the upper lifting lug tool can be adjusted by directly moving the position of the upper lifting lug tool bracket back and forth and left and right, and the height of the screw can be adjusted by adjusting the adjusting nut, so that the height adjustment of the upper lifting lug tool is realized; moreover, the connection mode is simpler, and the subsequent disassembly is also convenient.
Furthermore, the bottom box sand box and the middle box sand box are both rectangular frame-shaped structures, and resin sand is filled in the bottom box sand box and the middle box sand box respectively; and after the resin sand in the bottom box sand box is hardened, the lower lifting lug tool is arranged after the resin sand is trimmed and leveled, and the lower lifting lug tool is fixed after the resin sand in the middle box sand box is hardened.
Go up the lug frock with the global of lug frock can also set up string sand tooth and reference column down to increase the combining ability with the resin sand, also can strengthen the intensity of sand mould, keep the stability of size position when being favorable to the pouring.
Furthermore, a cover box sand box is further arranged on the middle box sand box, the upper lifting lug tool support and the adjusting screw are taken down and then arranged on the cover box sand box, and an exhaust hole, a riser, a pouring cup and other parts are further arranged on the cover box sand box.
Further, the modeling process for improving the position size precision of the large slag pot lifting lug comprises the following steps:
(1) respectively manufacturing an upper lifting lug, a lower lifting lug, an upper lifting lug tool and a lower lifting lug tool according to the drawing size of the lifting lug of the large slag ladle, and manufacturing a large slag ladle mold for standby;
(2) firstly, molding a bottom box sand box, wherein the surface of the bottom box sand box is flat and free of unevenness after sand filling and hardening, and the large slag ladle mold is placed in the middle of the bottom box sand box;
(3) placing and fixing the lower lifting lug on the lower lifting lug tool, adopting integral lifting, lifting the lower lifting lug tool and the lower lifting lug to the middle positions of two sides of the large slag ladle mold, measuring and adjusting the position of the lower lifting lug to enable the lower lifting lug tool and the lower lifting lug to be centered, enabling the end surface of the inner side of the lower lifting lug to abut against the side wall of the large slag ladle mold, lifting the middle box sand box to the bottom box sand box and placing the middle box sand box in order;
(4) placing and fixing the upper lifting lug on the upper lifting lug tool, connecting an upper lifting lug tool support with the upper lifting lug tool by using a screw rod, integrally hoisting the upper lifting lug tool support to the position of the upper lifting lug of the large slag ladle mold, placing the upper lifting lug tool support on the upper surface of the middle box sand box, and adjusting the positions of the upper lifting lug tool support in the front-back left-right directions of the upper surface of the middle box sand box and the up-down positions of the upper lifting lug tool by using the adjusting screw rod so that the dimensional positions of all the upper lifting lugs meet the requirements of drawings;
(5) after the lifting lug is adjusted, arranging a pouring system in the middle box sand box, beginning to discharge sand and fill the middle box sand box, when resin sand is placed at the upper lifting lug tool and tightly wraps the upper lifting lug tool, sequentially taking down the adjusting screw rod and the upper lifting lug tool bracket, and then continuously discharging sand until the middle box sand box is filled;
(6) after the middle box sand box is molded, arranging a cover box sand box on the middle box sand box, arranging an exhaust passage and a riser in the process of filling the cover box sand box with sand, completing the molding of the cover box sand box, after the resin sand is hardened and molded, hoisting the cover box sand box and stripping, covering the cover box sand box again, performing box pressing, and waiting for pouring;
(7) and after the pouring is finished, after the large slag ladle casting is solidified and molded, taking out the upper lifting lug tool and the lower lifting lug tool along with the large slag ladle casting together with shakeout, and continuously recycling the upper lifting lug tool and the lower lifting lug tool after being cleaned.
Compared with the prior art, the invention has the beneficial effects that: 1. the modeling tool is simple in structure and easy to manufacture and use, and a targeted simple tool is developed by determining the position size of the lifting lug of the slag pot product, and only the lifting lug is placed on the lifting lug tool in the modeling process and the relevant position size is detected and adjusted, so that the modeling tool has the characteristics of simplicity in operation and high size precision, and has the advantages of short manufacturing period, low manufacturing cost and reusability; 2. compared with the traditional process, the molding process is simple, convenient and quick to operate, the complex process of taking out the loose piece and placing the lifting lug in the sand mold at the later stage is also reduced, the tool is qualified after being repeatedly used for many times, has better practicability and use reliability, is suitable for the process installation of the lifting lugs of the slag pots of the same type, and solves the problem that the position and the size of the lifting lug of the large slag pot have high requirements and the traditional process cannot meet the requirements; 3. the lower lifting lug tool and the upper lifting lug tool are arranged separately, the adjustment of the lower lifting lug tool and the upper lifting lug tool is not influenced mutually, and the clamping groove can be used for connecting and fixing the upper lifting lug and the lower lifting lug; the upper lifting lug tool can be temporarily fixed in the process of placement by using the upper lifting lug tool support and the adjusting screw, various moving adjustments of the upper lifting lug tool are facilitated, sand is not filled in the middle box sand box in the adjusting process, and the operation is very easy; and in the subsequent sand filling process, fine adjustment can be performed, the upper lifting lug tool bracket and the screw rod can be taken out when the resin sand is wrapped and covers the upper lifting lug tool, and the hardened resin sand can keep the positions of the upper lifting lug and the upper lifting lug tool unchanged.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a modeling tool for improving the position dimensional accuracy of a large slag ladle lifting lug;
FIG. 2 is a schematic perspective view of a lower lifting lug tool for improving the position dimensional accuracy of a large slag ladle lifting lug according to the invention;
FIG. 3 is a schematic perspective view of an upper lifting lug tool for improving the position dimensional accuracy of a large slag ladle lifting lug according to the invention;
in the figure: 1. a large slag pot mold; 2. a bottom box flask; 3. a middle box sand box; 4. a lower lifting lug; 5. a lower lifting lug tool; 6. an upper lifting lug; 7. an upper lifting lug tool; 8. an upper lifting lug tool support; 9. adjusting the screw rod; 10. adjusting the nut; 11. an engaging groove.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The first embodiment is as follows:
as shown in fig. 1 to 3, the modeling tool for improving the position and size accuracy of the large slag pot lifting lug comprises a lower lifting lug tool 5 and an upper lifting lug tool 7 which are matched in a set, wherein the lower lifting lug tool 5 is provided with a clamping groove 11 for clamping and supporting the lower lifting lug 4, and the upper lifting lug tool 7 is provided with a plurality of clamping grooves 11 for clamping and supporting the upper lifting lug 6; the lower lifting lug tool 5 is arranged on the bottom box sand box 2, the middle box sand box 3 is arranged on the bottom box sand box 2 in an overlapping mode, an upper lifting lug tool support 8 is further arranged above the middle box sand box 3, the upper lifting lug tool support 8 stretches across the upper end face of the middle box sand box 3, the upper lifting lug tool support 8 is arranged in parallel to the center connecting line of the pair of upper lifting lugs 6, at least one adjusting screw 9 is arranged on the upper lifting lug tool support 8, one end of the adjusting screw 9 extends upwards out of the upper lifting lug tool support 8, and the other end of the adjusting screw extends downwards and is connected with the upper lifting lug tool 7.
The modeling tool is simple in structure and easy to manufacture and use, and a targeted simple tool developed by determining the position size of the lifting lug of the slag pot product only needs to place the lifting lug on the lifting lug tool and detect and adjust the relevant position size in the modeling process.
The working principle of the modeling tool is as follows: before modeling, the lifting lugs are placed on a lifting lug tool and respectively lifted to the relative positions of the slag pot die, and the size of the tool in each direction is adjusted in a moving way, so that the requirement of a drawing is met; the sizes of the lifting lugs of the slag pot casting products after molding and pouring are detected, and the sizes and the positions of the lifting lugs all meet the requirements of drawings.
Compared with the traditional process, the process is simple and convenient to operate and quick, the complex process that the lugs are placed in the sand mold by taking out the loose pieces in the later stage is reduced, the tool is qualified in repeated use result for many times, has better practicability and use reliability, is applicable to process installation of the lugs of the slag pots of the same type, and solves the problem that the position and the size of the lugs of the large slag pot are high and the traditional process cannot meet the requirements.
The lower lifting lug tool 5 and the upper lifting lug tool 7 are arranged separately, the adjustment of the lower lifting lug tool and the upper lifting lug tool is not influenced mutually, and the clamping groove 11 can be used for connecting and fixing the upper lifting lug 6 and the lower lifting lug 4; the upper lifting lug tool support 8 and the adjusting screw 9 are used, so that the upper lifting lug tool 7 can be temporarily fixed in the process of placement, various moving adjustments of the upper lifting lug tool 7 are facilitated, sand is not filled in the middle box sand box in the adjusting process, and the operation is very easy; in the subsequent sand filling process, fine adjustment can be performed, when the resin sand is wrapped and covers the upper lifting lug tool, the upper lifting lug tool bracket 8 and the adjusting screw 9 can be taken out, and the hardened resin sand can keep the positions of the upper lifting lug 6 and the upper lifting lug tool 7 unchanged.
Further, the upper lifting lug tool 7 and the lower lifting lug tool 5 are symmetrically arranged, a large slag pot mould 1 is arranged in a region between the lower lifting lug tool 5, and the inner end faces of the lower lifting lug 4 and the upper lifting lug 6 are respectively abutted to the side wall of the large slag pot mould 1.
Namely, the lifting lugs are symmetrically arranged on two sides of the large slag pot mould 1, and the mounting and position adjusting methods of the lifting lugs on the two sides are basically the same.
Furthermore, the upper lifting lug 6 is provided with two clamping grooves 11, the clamping grooves 11 are distributed in an inverted triangle shape on each side, and the openings of the clamping grooves 11 are arranged upwards so as to be convenient for supporting the trunnion.
Further, the upper lifting lug tool 7 and the lower lifting lug tool 5 are both trapezoidal metal blocks, and the length dimension of the lower lifting lug tool 5 is smaller than that of the upper lifting lug tool 7.
The metal block is adopted for better structural stability, and can resist high temperature and corrosion, so that the metal block can be reused after shakeout cleaning.
Further, the clamping grooves 11 are all semicircular grooves, and the upper lifting lug 6 or the trunnion of the lower lifting lug 4 is clamped in the semicircular grooves respectively.
Furthermore, the adjusting screws 9 are symmetrically arranged, the end portions of the adjusting screws 9 are respectively connected to the upper lifting lug tool support 8 near the clamping groove, and the upper end portions of the adjusting screws 9 are respectively sleeved with adjusting nuts 10.
The position of the upper lifting lug tool 7 can be adjusted by directly moving the upper lifting lug tool bracket 8 back and forth, and the height position of the adjusting screw 9 can be adjusted by adjusting the adjusting nut 10, so that the height adjustment of the upper lifting lug tool 7 is realized; moreover, the connection mode is simpler, and the subsequent disassembly is also convenient.
Further, the bottom box sand box 2 and the middle box sand box 3 are both rectangular frame-shaped structures, and resin sand is filled in the bottom box sand box 2 and the middle box sand box 3 respectively; and after the resin sand in the bottom box sand box 2 is hardened, the lower lifting lug tool 5 is arranged after the resin sand is trimmed and leveled, and the lower lifting lug tool 5 and the upper lifting lug tool 7 are fixed after the resin sand in the middle box sand box 3 is hardened.
Furthermore, a cover box sand box is further arranged on the middle box sand box 3, the cover box sand box is arranged after the upper lifting lug tool support 8 and the adjusting screw rod 9 are taken down, and the cover box sand box is further provided with an exhaust hole, a riser, a pouring cup and other parts.
Example two:
the embodiment provides a molding process for improving the position and size accuracy of a large slag ladle lifting lug, which comprises the following steps:
(1) respectively manufacturing an upper lifting lug 6, a lower lifting lug 4, an upper lifting lug tool 7 and a lower lifting lug tool 5 according to the lifting lug drawing size of the large slag ladle, and manufacturing a large slag ladle mold 1 for later use;
(2) firstly, molding a bottom box sand box 2, leveling the surface of the bottom box sand box 2 without unevenness after sand filling and hardening, and placing the large slag ladle mold 1 at the middle position of the bottom box sand box 2;
(3) placing and fixing the lower lifting lug 4 on the lower lifting lug tool 5, lifting the lower lifting lug tool 5 and the lower lifting lug 4 to the middle positions of two sides of the large slag pot mould 1 by adopting integral lifting, measuring and adjusting the position of the lower lifting lug 4 to enable the lower lifting lug tool to be centered, enabling the end surface of the inner side of the lower lifting lug 4 to abut against the side wall of the large slag pot mould 1, lifting the middle box sand box 3 onto the bottom box sand box 2, and placing the middle box sand box 3 in order;
(4) placing and fixing the upper lifting lug 6 on the upper lifting lug tool 7, connecting an upper lifting lug tool support 8 with the upper lifting lug tool 7 by using an adjusting screw 9, integrally hoisting the upper lifting lug tool support to the position of the upper lifting lug of the large slag ladle mold 1, placing the upper lifting lug tool support 8 on the upper surface of the middle box sand box 3, and adjusting the positions of the upper lifting lug tool support 8 on the upper surface of the middle box sand box 3 in the front-back and left-right directions and the up-down positions of the upper lifting lug tool 7 by using the adjusting screw 9 so that the size and the position of all the upper lifting lugs 6 meet the drawing requirements;
(5) after the adjustment of the upper lifting lug and the lower lifting lug is finished, arranging a pouring system in the middle box sand box 3, beginning to discharge sand and fill the middle box sand box 3, when resin sand is placed at the upper lifting lug tool 7 and tightly wraps the upper lifting lug tool 7, sequentially taking down the adjusting screw rod 9 and the upper lifting lug tool support 8, and then continuously discharging sand until the middle box sand box 3 is filled;
(6) after the middle box sand box 3 finishes moulding, arranging a cover box sand box on the middle box sand box 3, arranging an exhaust passage and a riser in the process of filling sand in the cover box sand box to finish moulding of the cover box sand box, hoisting the cover box sand box and drawing a mould after resin sand is hardened and formed, covering the cover box sand box again, pressing the box, and waiting for pouring;
(7) and after the pouring is finished, after the large slag pot casting is solidified and molded, taking out the upper lifting lug tool 7 and the lower lifting lug tool 5 along with the large slag pot casting, and cleaning the upper lifting lug tool 7 and the lower lifting lug tool 5 for continuous recycling.
By adopting the molding process method, the problem of low position size precision of the large slag ladle lifting lug can be effectively solved, and the large slag ladle lifting lug is simple in structure and easy to operate.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The modeling tool for improving the position and size accuracy of the lifting lugs of the large slag pot is characterized by comprising a lower lifting lug tool and an upper lifting lug tool which are matched in a set, wherein the lower lifting lug tool is provided with a clamping groove for clamping and supporting the lower lifting lug, and the upper lifting lug tool is provided with a plurality of clamping grooves for clamping and supporting the upper lifting lug; the lower lifting lug tool is arranged on the bottom box sand box, the middle box sand box is arranged on the bottom box sand box in an overlapping mode, an upper lifting lug tool support is further arranged above the middle box sand box, the upper lifting lug tool support stretches across the upper end face of the middle box sand box and is arranged in parallel to a pair of center connecting lines of the upper lifting lugs, at least one adjusting screw rod is arranged on the upper lifting lug tool support, one end of each adjusting screw rod extends upwards out of the upper lifting lug tool support, and the other end of each adjusting screw rod extends downwards and is connected with the upper lifting lug tool.
2. The modeling tool for improving the position and size accuracy of the large-scale slag pot lifting lug according to claim 1, wherein the upper lifting lug tool and the lower lifting lug tool are symmetrically arranged in a pair, a large-scale slag pot mold is arranged in an area between the pair of lower lifting lug tools, and inner end faces of the lower lifting lug and the upper lifting lug are respectively abutted to the side wall of the large-scale slag pot mold.
3. The modeling tool for improving the position and size accuracy of the large slag pot lifting lug according to claim 1, wherein the upper lifting lug is provided with two clamping grooves, three clamping grooves on each side are distributed in an inverted triangle shape, and the openings of the clamping grooves are arranged upwards.
4. The modeling tool for improving the position dimensional accuracy of the large slag ladle lifting lug according to claim 1, wherein the upper lifting lug tool and the lower lifting lug tool are both trapezoidal metal blocks, and the length dimension of the lower lifting lug tool is smaller than that of the upper lifting lug tool.
5. The modeling tool for improving the position and size accuracy of the large slag ladle lifting lug according to claim 1, wherein the clamping grooves are semicircular grooves, and the trunnion of the upper lifting lug or the trunnion of the lower lifting lug are respectively clamped in the semicircular grooves.
6. The modeling tool for improving the position and size accuracy of the large slag pot lifting lug according to claim 1, wherein the adjusting screws are symmetrically arranged, the end parts of the adjusting screws are respectively connected to the upper lifting lug tool support and close to the clamping groove, and adjusting nuts are respectively sleeved on the upper end parts of the adjusting screws.
7. The molding tool for improving the position and the dimensional accuracy of the large slag ladle lifting lug according to claim 1, wherein the bottom box sand box and the middle box sand box are both rectangular frame-shaped structures, and resin sand is filled in the bottom box sand box and the middle box sand box respectively; and after the resin sand in the bottom box sand box is hardened, the lower lifting lug tool is arranged after the resin sand is trimmed and leveled, and the lower lifting lug tool is fixed after the resin sand in the middle box sand box is hardened.
8. The modeling tool for improving the position and dimensional accuracy of the large slag pot lifting lug according to claim 1, wherein a cover box sand box is further arranged on the middle box sand box, the cover box sand box is arranged after the upper lifting lug tool support and the adjusting screw are taken down, and an exhaust hole, a riser and a pouring cup are further arranged on the cover box sand box.
9. The molding process of the molding tool for improving the position and size accuracy of the large slag ladle lifting lug according to claim 1, wherein the molding process comprises the following steps:
(1) respectively manufacturing an upper lifting lug, a lower lifting lug, an upper lifting lug tool and a lower lifting lug tool according to the drawing size of the lifting lug of the large slag ladle, and manufacturing a large slag ladle mold for standby;
(2) firstly, molding a bottom box sand box, wherein the surface of the bottom box sand box is flat and free of unevenness after sand filling and hardening, and the large slag ladle mold is placed in the middle of the bottom box sand box;
(3) placing and fixing the lower lifting lug on the lower lifting lug tool, adopting integral lifting, lifting the lower lifting lug tool and the lower lifting lug to the middle positions of two sides of the large slag ladle mold, measuring and adjusting the position of the lower lifting lug to enable the lower lifting lug tool and the lower lifting lug to be centered, enabling the end surface of the inner side of the lower lifting lug to abut against the side wall of the large slag ladle mold, lifting the middle box sand box to the bottom box sand box and placing the middle box sand box in order;
(4) placing and fixing the upper lifting lug on the upper lifting lug tool, connecting an upper lifting lug tool support with the upper lifting lug tool by using an adjusting screw rod, integrally hoisting the upper lifting lug tool support to the position of the upper lifting lug of the large slag ladle mold, placing the upper lifting lug tool support on the upper surface of the middle box sand box, and adjusting the positions of the upper lifting lug tool support in the front-back left-right direction of the upper surface of the middle box sand box and the up-down position of the upper lifting lug tool by using the adjusting screw rod so that the dimensional positions of all the upper lifting lugs meet the drawing requirements;
(5) after the lifting lug is adjusted, arranging a pouring system in the middle box sand box, beginning to discharge sand and fill the middle box sand box, when resin sand is placed at the upper lifting lug tool and tightly wraps the upper lifting lug tool, sequentially taking down the adjusting screw rod and the upper lifting lug tool bracket, and then continuously discharging sand until the middle box sand box is filled;
(6) after the middle box sand box is molded, arranging a cover box sand box on the middle box sand box, arranging an exhaust passage and a riser in the process of filling the cover box sand box with sand, completing the molding of the cover box sand box, after the resin sand is hardened and molded, hoisting the cover box sand box and stripping, covering the cover box sand box again, performing box pressing, and waiting for pouring;
(7) and after the pouring is finished, after the large slag ladle casting is solidified and molded, taking out the upper lifting lug tool and the lower lifting lug tool along with the large slag ladle casting together with shakeout, and continuously recycling the upper lifting lug tool and the lower lifting lug tool after being cleaned.
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| CN202111086931.4A CN113814376B (en) | 2021-09-16 | 2021-09-16 | Molding tool and molding process for improving position and size precision of large slag pot lifting lug |
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| CN208869154U (en) * | 2018-09-19 | 2019-05-17 | 常州博瑞电力自动化设备有限公司 | A kind of universal SVG mould group lifting appliance for installing |
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2021
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| US4015814A (en) * | 1975-05-14 | 1977-04-05 | Hilti Aktiengesellschaft | Formation of lugs on ingot moulds |
| CN104972072A (en) * | 2015-07-22 | 2015-10-14 | 共享装备有限公司 | Sand core lifting lug embedment device and application method thereof |
| CN206492900U (en) * | 2017-02-24 | 2017-09-15 | 天津虹冈铸钢有限公司 | A kind of dispellable mould casting built-up flask |
| CN208099258U (en) * | 2017-07-25 | 2018-11-16 | 烟台市中拓合金钢有限责任公司 | A kind of furnace roller cone of die cast |
| CN208869154U (en) * | 2018-09-19 | 2019-05-17 | 常州博瑞电力自动化设备有限公司 | A kind of universal SVG mould group lifting appliance for installing |
| CN109175245A (en) * | 2018-10-25 | 2019-01-11 | 芜湖泓鹄材料技术有限公司 | The casting technique of Auto panel dies casting |
| CN109249004A (en) * | 2018-11-30 | 2019-01-22 | 北京航星机器制造有限公司 | A kind of low pressure casting snap flask |
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| CN113814376B (en) | 2022-12-27 |
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