CN210676923U - Multifunctional molten steel casting device - Google Patents

Multifunctional molten steel casting device Download PDF

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Publication number
CN210676923U
CN210676923U CN201921770379.9U CN201921770379U CN210676923U CN 210676923 U CN210676923 U CN 210676923U CN 201921770379 U CN201921770379 U CN 201921770379U CN 210676923 U CN210676923 U CN 210676923U
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CN
China
Prior art keywords
seat
shaped
supporting
molten steel
rotatable
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Expired - Fee Related
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CN201921770379.9U
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Chinese (zh)
Inventor
丁明生
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Tianjin Dongrui Steel Casting Co Ltd
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Tianjin Dongrui Steel Casting Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN201921770379.9U priority Critical patent/CN210676923U/en
Application granted granted Critical
Publication of CN210676923U publication Critical patent/CN210676923U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a multi-functional molten steel casting device, including the supporting seat, observe the piece, the mould, electric putter, the tight board in top, rotatable fixing base structure, adjustable guide support frame structure, rotatable support fixing base structure, rolling motor, H type rolling wheel, division board, wire rope and pour the pipe, the observation piece inlay the inside intermediate position in the left and right sides of supporting seat respectively. The arrangement of the supporting seat and the observation sheet of the utility model is beneficial to observing the working condition of the equipment in the working process and increasing the observation function; the arrangement of the first fixed seat, the U-shaped fixed seat, the first U-shaped seat and the supporting rod is beneficial to die installation and fixing in the working process, and is convenient for molten steel casting; the support frame, fixed pipe, square head bolt, the setting of L type telescopic link and guide wheel are favorable to adjusting the height of guide wheel at the in-process of work, conveniently carry out wire rope guide work, increase regulatory function.

Description

Multifunctional molten steel casting device
Technical Field
The utility model belongs to the technical field of the molten steel casting device, especially, relate to a multi-functional molten steel casting device.
Background
The split type die casting mode of tradition adopts the wedge to connect more, and two half moulds are connected with a T shape connecting block promptly, and it has the square hole to open T shape connecting block one side, fixes with trapezoidal wedge iron above the square hole, at compound die and die sinking in-process, all strikes trapezoidal wedge iron with the manual work and in order to realize fixedly.
But the existing molten steel casting device still has the problems that the device does not have the observation function in the working process, is inconvenient to carry out the fixed installation work of the die and is inconvenient to adjust.
Therefore, the invention of a multifunctional molten steel casting device is very necessary.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a multi-functional molten steel casting device to there is not possessing the observation function at the in-process that carries out work in solving current molten steel casting device, the inconvenient problem of carrying out mould fixed mounting work and inconvenient regulation. A multifunctional molten steel casting device comprises a supporting seat, an observation piece, a mold, an electric push rod, a jacking plate, a rotatable fixing seat structure, an adjustable guide and delivery supporting frame structure, a rotatable supporting fixing seat structure, a winding motor, an H-shaped winding wheel, a partition plate, a steel wire rope and a pouring pipe, wherein the observation piece is respectively embedded in the middle positions of the inner parts of the left side and the right side of the supporting seat; the moulds are respectively arranged in the rotatable fixed seat structure; the electric push rods are respectively connected to the lower parts of the left side and the right side of the supporting seat through bolts; the jacking plates are respectively connected to the left side and the right side of the electric push rod through bolts; the rotatable fixed seat structure is arranged inside the upper side of the supporting seat; the adjustable guide and delivery support frame structure is arranged at the upper end of the support seat; the rotatable supporting fixed seat structure is arranged on the upper part of the inner wall of the right side of the supporting seat; the winding motor is arranged on the right side of the upper end of the adjustable guide support frame structure; the H-shaped winding wheel is connected to an output shaft of the winding motor through a key; the partition plate is glued in the middle of the outer wall of the H-shaped winding wheel; the upper ends of the steel wire ropes are respectively wound on the outer wall of the H-shaped winding wheel; the lower ends of the steel wire ropes are respectively tied to the upper ends of the rotatable fixing seat structures; the pouring pipe is arranged inside the left side of the rotatable supporting fixed seat structure; the rotatable fixing seat structure comprises a first fixing seat, a U-shaped fixing seat, an insertion rod, a first U-shaped seat and a supporting rod, wherein the U-shaped fixing seat is respectively bolted at the upper end of the first fixing seat; the inserting rods are respectively inserted in the middle positions inside the upper sides of the U-shaped fixed seats; the first U-shaped seats are respectively bolted on the lower parts of the inner walls at the left and right sides of the U-shaped fixed seat; and two ends of the supporting rod are respectively connected to the middle positions in the left side and the right side of the first U-shaped seat in a shaft mode.
Preferably, the adjustable guide and delivery support frame structure comprises a support frame, a winding hole, a fixed pipe, a square-head bolt, an L-shaped telescopic rod and a guide and delivery wheel, wherein the winding hole is formed in the middle of the inner part of the upper side of the support frame; the upper ends of the fixed pipes are respectively welded on the left side and the right side of the lower end of the support frame; the square head bolts are respectively in threaded connection with the middle position of the lower part of the front surface of the fixed pipe; the upper ends of the L-shaped telescopic rods are respectively inserted in the middle of the inner part of the lower side of the fixed pipe; the guide wheels are respectively connected to the left side and the right side of the lower end of the L-shaped telescopic rod in a shaft mode.
Preferably, the rotatable supporting fixed seat structure comprises a second U-shaped seat, a rotating rod, a hexagon bolt, a second fixed seat and a wing bolt, wherein the right side of the rotating rod is coupled to the middle position inside the left side of the second U-shaped seat; the hexagonal head bolt penetrates through the middle position of the left side of the front surface of the rotating rod; the hexagonal head bolt is in threaded connection with the middle position of the front surface of the second fixed seat; the wing bolt is in threaded connection with the middle position of the left side of the second fixed seat.
Preferably, the electric push rods respectively penetrate through the lower parts of the left side and the right side of the supporting seat; the jacking plate and the partition plate are respectively made of stainless steel plates; the observation piece is a transparent toughened glass piece.
Preferably, the first fixed seat is a stainless steel seat; the insertion rod is a stainless steel rod.
Preferably, the lower ends of the steel wire ropes are respectively tied to the middle positions of the outer walls of the insertion rods; the first fixing seat is arranged in the middle of the upper side of the supporting seat.
Preferably, the fixed pipes are respectively arranged at the left side and the right side of the lower end of the rolling hole; the guide wheel is a concave stainless steel wheel.
Preferably, the supporting frame is connected to the outer wall of the upper end of the supporting seat through bolts; the steel wire ropes respectively penetrate through the coiling holes; the winding motor is connected to the middle position of the right side of the upper end of the support frame through a bolt; the H-shaped winding wheel and the winding hole are correspondingly arranged.
Preferably, the second fixed seat is a stainless steel seat with a through hole formed therein; the dwang adopt the stainless steel pole.
Preferably, the second U-shaped seat is connected to the upper part of the inner wall of the right side of the supporting seat through a bolt; the pouring pipe penetrates through a through hole formed in the second fixing seat.
Preferably, the electric push rod is an electric push rod with the model number of HB-DJ 809; the winding motor specifically adopts a motor with the model number of YE 3.
Preferably, the electric push rod and the winding motor are respectively and electrically connected with an electric appliance control device arranged outside.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, the setting of supporting seat and observation piece, be favorable to at the in-process observation device's of work behavior, increase and observe the function.
2. The utility model discloses in, first fixing base, U type fixing base, the setting of first U type seat and bracing piece is favorable to carrying out die set and fixed work at the in-process of work, conveniently carries out the molten steel casting work.
3. The utility model discloses in, the support frame, fixed pipe, square head bolt, L type telescopic link and the setting of leading the wheel are favorable to adjusting the height of leading the wheel at the in-process of work, conveniently carry out wire rope and lead and send work, increase regulatory function.
4. The utility model discloses in, first fixing base, U type fixing base, the pole of pegging graft, the setting of first U type seat and bracing piece is favorable to rotating first fixing base and mould at the in-process of work, conveniently carries out the work of taking of work piece.
5. The utility model discloses in, second U type seat, dwang, hexagon head bolt, the setting of second fixing base and winged bolt is favorable to the fixed pipe of pouring, conveniently carries out work piece casting work.
6. The utility model discloses in, the supporting seat, the setting of electric putter and top tie plate, the lower extreme that is favorable to fixed first fixing base prevents to appear leaking the phenomenon of material at the in-process of work.
7. The utility model discloses in, second U type seat, dwang, hexagon head bolt, the setting of second fixing base and winged bolt is favorable to rotating at the in-process of work and pours the pipe, conveniently carries out the molten steel casting work.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the rotatable fixing base structure of the present invention.
Fig. 3 is a schematic structural view of the adjustable guiding support frame structure of the present invention.
Fig. 4 is a schematic structural view of the rotatable supporting fixing seat structure of the present invention.
In the figure:
1. a supporting seat; 2. an observation sheet; 3. a mold; 4. an electric push rod; 5. a jacking plate; 6. a rotatable fixing seat structure; 61. a first fixed seat; 62. a U-shaped fixed seat; 63. a plug rod; 64. a first U-shaped seat; 65. a support bar; 7. the structure of the guide support frame can be adjusted; 71. a support frame; 72. a coiling hole; 73. a fixed tube; 74. a square head bolt; 75. an L-shaped telescopic rod; 76. a guide wheel; 8. a rotatable supporting fixing seat structure; 81. a second U-shaped seat; 82. rotating the rod; 83. a hexagon head bolt; 84. a second fixed seat; 85. a wing bolt; 9. a winding motor; 10. an H-shaped winding wheel; 11. a partition plate; 12. a wire rope; 13. and (6) pouring the pipe.
Detailed Description
The utility model is described in detail with reference to the accompanying drawings, as shown in fig. 1 and fig. 2, a multifunctional molten steel casting device comprises a supporting seat 1, an observation plate 2, a mold 3, an electric push rod 4, a jacking plate 5, a rotatable fixing seat structure 6, an adjustable guiding and conveying support frame structure 7, a rotatable supporting and fixing seat structure 8, a winding motor 9, an H-shaped winding wheel 10, a separation plate 11, a steel wire rope 12 and a pouring pipe 13, wherein the observation plate 2 is respectively embedded in the middle positions of the inner parts of the left side and the right side of the supporting seat 1; the moulds 3 are respectively arranged in the rotatable fixed seat structures 6; the electric push rods 4 are respectively connected to the lower parts of the left side and the right side of the supporting seat 1 through bolts; the jacking plates 5 are respectively connected to the left side and the right side of the electric push rod 4 through bolts; the rotatable fixed seat structure 6 is arranged inside the upper side of the supporting seat 1; the adjustable guide support frame structure 7 is arranged at the upper end of the support seat 1; the rotatable supporting fixed seat structure 8 is arranged on the upper part of the inner wall of the right side of the supporting seat 1; the winding motor 9 is arranged on the right side of the upper end of the adjustable guide support frame structure 7; the H-shaped winding wheel 10 is connected to an output shaft of the winding motor 9 in a key mode; the partition plate 11 is glued in the middle of the outer wall of the H-shaped winding wheel 10; the upper ends of the steel wire ropes 12 are respectively wound on the outer wall of the H-shaped winding wheel 10; the lower ends of the steel wire ropes 12 are respectively tied to the upper ends of the rotatable fixing seat structures 6; the pouring pipe 13 is arranged inside the left side of the rotatable supporting and fixing seat structure 8; the rotatable fixing seat structure 6 comprises a first fixing seat 61, a U-shaped fixing seat 62, an insertion rod 63, a first U-shaped seat 64 and a support rod 65, wherein the U-shaped fixing seat 62 is respectively bolted at the upper end of the first fixing seat 61; the inserting rods 63 are respectively inserted in the middle position of the upper inner part of the U-shaped fixed seat 62; the first U-shaped seats 64 are respectively bolted on the lower parts of the inner walls at the left and right sides of the U-shaped fixed seat 62; two ends of the supporting rod 65 are respectively connected to the middle positions of the inner parts of the left side and the right side of the first U-shaped seat 64 in a shaft mode; carry out the during operation, place supporting seat 1 and fix in suitable position, then control rolling motor 9 through outside electrical apparatus controlgear and carry out work, drive H type rolling wheel 10 and rotate rolling wire rope 12, then use bolted connection in the inside of first fixing base 61 respectively with mould 3, conveniently carry out mould 3 and change and installation work at the in-process of work.
In this embodiment, referring to fig. 3, the adjustable guiding and conveying support frame structure 7 includes a support frame 71, a winding hole 72, a fixing tube 73, a square head bolt 74, an L-shaped telescopic rod 75 and a guiding and conveying wheel 76, wherein the winding hole 72 is formed in the middle of the upper inside of the support frame 71; the upper ends of the fixed pipes 73 are respectively welded at the left side and the right side of the lower end of the support frame 71; the square head bolts 74 are respectively in threaded connection with the middle position of the lower part of the front surface of the fixed pipe 73; the upper ends of the L-shaped telescopic rods 75 are respectively inserted in the middle of the lower inner part of the fixed pipe 73; the guide wheels 76 are respectively connected to the left side and the right side of the lower end of the L-shaped telescopic rod 75 in a shaft manner; after the die 3 is fixed, the square-head bolt 74 is loosened, then the L-shaped telescopic rod 75 is adjusted up and down to drive the guide wheel 76 to perform adjustment work, so that the guide wheel 76 is adjusted to a proper height, then the square-head bolt 74 is screwed down, the steel wire rope 12 is conveniently guided in the working process, and the first fixing seat 61 is combined and expanded.
In this embodiment, referring to fig. 4, the rotatable supporting and fixing seat structure 8 includes a second U-shaped seat 81, a rotating rod 82, a hexagon bolt 83, a second fixing seat 84 and a wing bolt 85, wherein the right side of the rotating rod 82 is coupled to the middle position inside the left side of the second U-shaped seat 81; the hexagon head bolt 83 penetrates through the middle position on the left side of the front surface of the rotating rod 82; the hexagon head bolt 83 is in threaded connection with the middle position of the front surface of the second fixed seat 84; the wing bolt 85 is in threaded connection with the middle position of the left side of the second fixed seat 84; after the first fixing seats 61 are combined, the electric push rod 4 is controlled to work through control equipment, the jacking plate 5 is pushed to move towards the middle position, the lower ends of the first fixing seats 61 are jacked tightly, then the rotating rod 82 is rotated, the second fixing seats 84 are rotated to the upper ends of the first fixing seats 61, then the wing-shaped bolts 85 are loosened, the pouring pipes 13 penetrate through the second fixing seats 84 and are communicated with the die 3, the wing-shaped bolts 85 are screwed, then the pouring is carried out inside the die 3, and then the molten steel casting work is completed.
In this embodiment, specifically, the electric push rods 4 respectively penetrate through the lower parts of the left and right sides of the support seat 1; the jacking plate 5 and the partition plate 11 are respectively made of stainless steel plates; the observation sheet 2 is a transparent toughened glass sheet.
In this embodiment, specifically, the first fixing seat 61 is a stainless steel seat; the insertion rod 63 is a stainless steel rod.
In this embodiment, specifically, the lower ends of the steel wire ropes 12 are respectively tied to the middle positions of the outer walls of the insertion rods 63; the first fixing seat 61 is arranged at the middle position inside the upper side of the supporting seat 1.
In this embodiment, specifically, the fixing pipes 73 are respectively disposed at the left and right sides of the lower end of the winding hole 72; the guide wheel 76 is a concave stainless steel wheel.
In this embodiment, specifically, the supporting frame 71 is bolted to the outer wall of the upper end of the supporting seat 1; the steel wire ropes 12 respectively penetrate through the winding holes 72; the winding motor 9 is connected to the middle position of the right side of the upper end of the support frame 71 through a bolt; the H-shaped winding wheel 10 and the winding hole 72 are correspondingly arranged.
In this embodiment, specifically, the second fixing seat 84 is a stainless steel seat with a through hole therein; the rotating rod 82 is made of a stainless steel rod.
In this embodiment, specifically, the second U-shaped seat 81 is bolted to the upper part of the inner wall of the right side of the supporting seat 1; the casting pipe 13 penetrates through a through hole formed in the second fixing seat 84.
In the embodiment, specifically, the electric push rod 4 is an electric push rod with model number HB-DJ 809; the winding motor 9 specifically adopts a motor with the model number of YE 3.
In this embodiment, specifically, the electric push rod 4 and the winding motor 9 are respectively electrically connected to an external electric control device.
Principle of operation
In the utility model, when working, the supporting seat 1 is placed at a proper position and fixed, then the winding motor 9 is controlled by the external electrical control equipment to work, the H-shaped winding wheel 10 is driven to rotate the winding steel wire rope 12, then the dies 3 are respectively connected inside the first fixing seat 61 by using bolts, the replacement and installation work of the dies 3 can be conveniently carried out in the working process, after the dies 3 are fixed, the square head bolts 74 are loosened, then the L-shaped telescopic rods 75 are adjusted up and down to drive the guide wheels 76 to adjust, so that the guide wheels 76 are adjusted to a proper height, then the square head bolts 74 are tightened, the steel wire rope 12 can be conveniently guided in the working process, the first fixing seats 61 are merged and expanded, after the first fixing seats 61 are merged, the electric push rod 4 is controlled by the control equipment to start working, the jacking plate 5 is pushed to move to the middle position, the lower end of the first fixed seat 61 is tightly pushed, then the rotating rod 82 is rotated to enable the second fixed seat 84 to rotate to the upper end of the first fixed seat 61, then the wing-shaped bolt 85 is loosened to enable the pouring pipe 13 to penetrate through the second fixed seat 84 and be communicated with the mold 3, the wing-shaped bolt 85 is screwed up and then filled into the mold 3, and therefore molten steel casting work is completed.
Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims (10)

1. The multifunctional molten steel casting device is characterized by comprising a supporting seat (1), an observation piece (2), a mold (3), an electric push rod (4), a jacking plate (5), a rotatable fixing seat structure (6), an adjustable guiding and conveying supporting frame structure (7), a rotatable supporting and fixing seat structure (8), a winding motor (9), an H-shaped winding wheel (10), a partition plate (11), a steel wire rope (12) and a pouring pipe (13), wherein the observation piece (2) is respectively embedded in the middle positions of the inner parts of the left side and the right side of the supporting seat (1); the moulds (3) are respectively arranged in the rotatable fixed seat structure (6); the electric push rods (4) are respectively connected to the lower parts of the left side and the right side of the supporting seat (1) through bolts; the jacking plates (5) are respectively connected to the left side and the right side of the electric push rod (4) through bolts; the rotatable fixed seat structure (6) is arranged inside the upper side of the supporting seat (1); the adjustable guide and delivery support frame structure (7) is arranged at the upper end of the support seat (1); the rotatable supporting fixed seat structure (8) is arranged on the upper part of the inner wall of the right side of the supporting seat (1); the winding motor (9) is arranged on the right side of the upper end of the adjustable guide support frame structure (7); the H-shaped winding wheel (10) is connected to an output shaft of the winding motor (9) in a key mode; the partition plate (11) is glued in the middle of the outer wall of the H-shaped winding wheel (10); the upper ends of the steel wire ropes (12) are respectively wound on the outer wall of the H-shaped winding wheel (10); the lower ends of the steel wire ropes (12) are respectively tied and connected with the upper end of the rotatable fixed seat structure (6); the pouring pipe (13) is arranged inside the left side of the rotatable supporting fixed seat structure (8); the rotatable fixing seat structure (6) comprises a first fixing seat (61), a U-shaped fixing seat (62), an insertion rod (63), a first U-shaped seat (64) and a supporting rod (65), wherein the U-shaped fixing seat (62) is respectively connected to the upper end of the first fixing seat (61) through bolts; the inserting rods (63) are respectively inserted in the middle position of the upper inner part of the U-shaped fixed seat (62); the first U-shaped seats (64) are respectively bolted on the lower parts of the inner walls at the left and right sides of the U-shaped fixed seat (62); two ends of the supporting rod (65) are respectively connected to the middle positions inside the left side and the right side of the first U-shaped seat (64) in a shaft mode.
2. The multifunctional molten steel casting device according to claim 1, wherein the adjustable guiding and conveying support frame structure (7) comprises a support frame (71), a winding hole (72), a fixed pipe (73), a square head bolt (74), an L-shaped telescopic rod (75) and a guiding and conveying wheel (76), wherein the winding hole (72) is formed in the middle of the inner part of the upper side of the support frame (71); the upper ends of the fixed pipes (73) are respectively welded on the left side and the right side of the lower end of the support frame (71); the square-head bolts (74) are respectively in threaded connection with the middle position of the lower part of the front surface of the fixed pipe (73); the upper ends of the L-shaped telescopic rods (75) are respectively inserted in the middle of the lower inner part of the fixed pipe (73); the guide wheels (76) are respectively connected to the left side and the right side of the lower end of the L-shaped telescopic rod (75) in a shaft mode.
3. The multifunctional molten steel casting device according to claim 1, wherein the rotatable supporting and fixing seat structure (8) comprises a second U-shaped seat (81), a rotating rod (82), a hexagon head bolt (83), a second fixing seat (84) and a wing bolt (85), and the right side of the rotating rod (82) is coupled to the middle position inside the left side of the second U-shaped seat (81); the hexagon bolt (83) penetrates through the middle position of the left side of the front surface of the rotating rod (82); the hexagon head bolt (83) is in threaded connection with the middle position of the front surface of the second fixed seat (84); the wing bolt (85) is in threaded connection with the middle position of the left side of the second fixed seat (84).
4. The multifunctional molten steel casting device according to claim 1, wherein the electric push rods (4) respectively penetrate through the lower parts of the left side and the right side of the supporting seat (1); the jacking plate (5) and the partition plate (11) are respectively made of stainless steel plates; the observation sheet (2) is a transparent toughened glass sheet.
5. The multifunctional molten steel casting device according to claim 1, wherein the first fixed seat (61) is a stainless steel seat; the insertion rod (63) is a stainless steel rod.
6. The multifunctional molten steel casting device according to claim 1, wherein the lower ends of the steel wire ropes (12) are respectively tied to the middle positions of the outer walls of the insertion rods (63); the first fixing seat (61) is arranged in the middle of the upper side of the supporting seat (1).
7. The multifunctional molten steel casting apparatus according to claim 2, wherein the fixing pipes (73) are respectively provided at left and right sides of the lower end of the winding hole (72); the guide wheel (76) adopts a concave stainless steel wheel.
8. The multifunctional molten steel casting device as claimed in claim 2, wherein the supporting frame (71) is bolted to the outer wall of the upper end of the supporting seat (1); the steel wire ropes (12) respectively penetrate through the coiling holes (72); the winding motor (9) is connected to the middle position of the right side of the upper end of the support frame (71) through a bolt; the H-shaped winding wheel (10) and the winding hole (72) are correspondingly arranged.
9. The multifunctional molten steel casting device according to claim 3, wherein the second fixed seat (84) is a stainless steel seat with a through hole therein; the rotating rod (82) is a stainless steel rod.
10. The multifunctional molten steel casting device as claimed in claim 3, wherein the second U-shaped seat (81) is bolted to the upper part of the inner wall of the right side of the supporting seat (1); the pouring pipe (13) penetrates through a through hole formed in the second fixing seat (84).
CN201921770379.9U 2019-10-22 2019-10-22 Multifunctional molten steel casting device Expired - Fee Related CN210676923U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921770379.9U CN210676923U (en) 2019-10-22 2019-10-22 Multifunctional molten steel casting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921770379.9U CN210676923U (en) 2019-10-22 2019-10-22 Multifunctional molten steel casting device

Publications (1)

Publication Number Publication Date
CN210676923U true CN210676923U (en) 2020-06-05

Family

ID=70889915

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921770379.9U Expired - Fee Related CN210676923U (en) 2019-10-22 2019-10-22 Multifunctional molten steel casting device

Country Status (1)

Country Link
CN (1) CN210676923U (en)

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Granted publication date: 20200605

Termination date: 20211022