A long nozzle and submerged nozzle integrated quick-change device
By combining a support platform frame and a robotic arm with a plug-in claw and a limit stop, the design enables rapid and stable replacement of long water inlets and immersion water inlets, solving the safety hazards and operational inconveniences of existing technologies and improving replacement efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIYUAN YUTAI REFRACTORY CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-31
AI Technical Summary
The replacement of existing long water inlets and submersible water inlets presents safety hazards and operational inconveniences, especially the risk of directly pushing down the old water inlet under high temperature conditions, and the device's support ring and U-shaped frame are inconvenient to handle.
An integrated quick-change device for long and immersion sprues was designed. It uses a support platform frame and a robotic arm, combined with plug-in claws, limit stops and rotating support plates, to achieve rapid and stable plug-in and limit of the sprue structure, and works with the robotic arm to achieve quick change.
It improves the safety and ease of operation of sprue replacement, reduces labor intensity, enables rapid and effective replacement of sprue structures, and enhances the stability and safety of the device.
Smart Images

Figure CN224574681U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of continuous casting related technology, specifically, it relates to an integrated quick-change device for long nozzles and submersible nozzles. Background Technology
[0002] Both the long nozzle and the submerged entry nozzle are core components of the three major casting equipment. The long nozzle is installed between the ladle and the tundish to prevent secondary oxidation of molten steel when it is poured into the tundish, avoid splashing of the steel flow, and ensure the stability of the casting process. The submerged entry nozzle is used to prevent secondary oxidation and splashing of molten steel during the pouring from the tundish, prevent protective slag from being entrained in the molten steel, promote uniform growth of the billet shell, and remove inclusions. During the use of the long nozzle and the submerged entry nozzle, the service life of the long nozzle and the submerged entry nozzle is relatively short due to the long-term high-temperature corrosion of the steel slag, and they need to be replaced. Application No. CN202122487562.1 discloses a quick-change device for long nozzles. Through the quick disassembly and assembly of a fixing sleeve and a fork-shaped component, it achieves the purpose of rapid replacement of long nozzles. It eliminates the need to remove the long nozzle from the support ring; only the insert-shaped component on the long nozzle to be replaced needs to be removed, and then the fork-shaped component with the new long nozzle is inserted into the fixing sleeve to complete the replacement. This greatly improves the efficiency of long nozzle replacement and reduces the labor intensity of workers. The support ring 7 of the device is set on a U-shaped frame 6, and the long nozzle is set on the support ring 7, making the operation of placing and removing the long nozzle from the U-shaped frame somewhat inconvenient. Activating the hydraulic cylinder causes the U-shaped fork 10 to push the U-shaped frame 6, thereby causing the entire fork-shaped component to detach from the fixing sleeve 2. At this time, the old long nozzle is pushed down by the U-shaped fork 10 along with the fork-shaped component. Since the removed old long nozzle is in a high-temperature state and is directly pushed down by the U-shaped fork, it poses a certain safety hazard.
[0003] In view of this, this utility model is hereby proposed. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an integrated quick-change device for long water inlets and immersion water inlets. The basic concept of the technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: A quick-change device integrating a long water inlet and an immersion water inlet includes a support platform frame and a robotic arm. The support platform frame is provided with an installation slot and a removal slot. An installation structure is provided at the installation slot, and a removal structure is provided at the removal slot. The removal structure includes a plug-in claw, a connecting end plate, an intermediate connecting plate, and a fixed connecting seat. The plug-in claw has a hollowed-out placement slot in the middle. One end of the plug-in claw is fixedly connected to the connecting end plate. The end of the connecting end plate away from the plug-in claw is fixedly connected to the intermediate connecting plate. The other end of the intermediate connecting plate is fixedly connected to the fixed connecting seat. A limit plug-in hole is provided on the upper surface of the end of the plug-in claw away from the connecting end plate. A limit stop is inserted and installed in the limit plug-in hole. Rotary support plates with rotation adjustment are provided on both sides of the intermediate connecting plate to effectively support the removal structure when it is placed on the support platform frame.
[0005] As a further embodiment of this utility model: the limiting insertion hole is a rectangular hole structure, the limiting stop is a U-shaped structure, and the lower end of the limiting stop is provided with a plug rod. The shape and specifications of the plug rod are adapted to the shape and specifications of the limiting insertion hole, so that the installation of the limiting stop has good stability.
[0006] As a further improvement of this utility model: the lower end of the plug rod is provided with a plug guide slope, the upper part of the plug rod is provided with a limit support ring, the limit stop is made of high temperature resistant material, and the outer layer is provided with a high temperature resistant and anti-corrosion coating, thereby improving the service life of the limit stop.
[0007] As a further embodiment of this utility model: the intermediate connecting plate has symmetrically provided storage grooves on both sides, one end of the supporting rotating plate is rotatably connected to the intermediate connecting plate, the rotating connection end has a semi-circular arc structure, and a supporting block is provided on the bottom surface of the other end of the supporting rotating plate, the bottom surface of the supporting block is flush with the bottom surface of the plug claw.
[0008] As a further improvement of this utility model: an installation guide slope is provided on the inner side of the opening end of the plug claw, a mating plug plate is fixedly provided on the outer side of the fixed connecting seat, and both the installation slot and the removal slot are open slot structures to facilitate the accommodation of the water inlet structure.
[0009] As a further embodiment of this utility model: a movable connecting seat is connected to the end of the robotic arm, and a mating insertion groove is provided on the movable connecting seat. The shape and specifications of the mating insertion groove are adapted to the mating insertion plate. Fixed mating holes are provided on both the movable connecting seat and the mating insertion plate. Fixed screws are provided in the fixed mating holes for locking the fixed connecting seat and the movable connecting seat.
[0010] As a further improvement of this utility model: the upper surface of the plug claw is provided with a stable support slope, and the inclined lower end of the stable support slope is located at one end of the connecting end plate, which facilitates the sliding of the plugged water inlet towards one end of the connecting end plate and improves the stability of the support structure.
[0011] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.
[0012] This utility model is provided with an installation structure and a removal structure. Both the installation structure and the removal structure are equipped with corresponding insertion claws and limiting brackets for effective insertion support and limiting of the sprue structure. The removal and installation processes can achieve fast and effective support, and can be used with a robotic arm to realize quick replacement of the sprue structure.
[0013] The support platform frame of this utility model is provided with a slot for installation and a slot for removal to place the support installation structure and the removal structure respectively. Rotary storage support rotating plates are provided on both sides of the installation structure and the removal structure to improve the stability of the structure placement state. The mating structure of the fixed connecting seat and the movable connecting seat is open, so the mating state can be seen intuitively, making the connection operation easier.
[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the front view of the present invention; Figure 3 This is a schematic diagram showing the cooperation between the movable connecting seat and the fixed connecting seat of this utility model; Figure 4 This is a schematic diagram of the limiting stop structure of this utility model; Figure 5 This is a side view of the present invention.
[0016] In the diagram: 1. Support platform frame; 2. Placement slot to be installed; 3. Placement slot to be removed; 4. Installation structure; 5. Removal structure; 6. Connecting claw; 7. Installation guide ramp; 8. Limiting insertion hole; 9. Connecting end plate; 10. Intermediate connecting plate; 11. Fixed connecting seat; 12. Mating plate; 13. Fixed mating hole; 14. Support rotating plate; 15. Support block; 16. Limiting stop; 17. Robotic arm; 18. Moving connecting seat; 19. Fixing screw; 20. Mating insertion slot; 21. Storage slot; 22. Insertion rod; 23. Insertion guide ramp; 24. Limiting support ring; 25. Stabilizing support ramp.
[0017] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.
[0019] like Figures 1 to 5 As shown, an integrated quick-change device for long water inlets and immersion water inlets includes a support platform frame 1 and a robotic arm 17. The support platform frame 1 is provided with an installation placement slot 2 and a removal placement slot 3. An installation structure 4 is provided at the installation placement slot, and a removal structure 5 is provided at the removal placement slot 3. The removal structure 5 includes a plug-in claw 6, a connecting end plate 9, an intermediate connecting plate, and a fixed connecting seat 11. The plug-in claw 6 has a hollow placement slot in the middle. One end of the plug-in claw 6 is fixedly connected to the connecting end plate 9. The end of the connecting end plate 9 away from the plug-in claw 6 is fixedly connected to the intermediate connecting plate 10. The other end of the intermediate connecting plate 10 is fixedly connected to the fixed connecting seat 11. A limit plug-in hole 8 is provided on the upper surface of the end of the plug-in claw 6 away from the connecting end plate 9. A limit stop 16 is inserted and installed in the limit plug-in hole 8. Rotary support plates 14 with rotation adjustment are provided on both sides of the intermediate connecting plate 10 to effectively support the removal structure 5 when it is placed on the support platform frame 1.
[0020] The limiting insertion hole 8 is a rectangular hole structure, the limiting stop 16 is a U-shaped structure, and the lower end of the limiting stop 16 is provided with a plug rod 22. The shape and specifications of the plug rod 22 are adapted to the shape and specifications of the limiting insertion hole 8, so that the installation of the limiting stop 16 has good stability.
[0021] The lower end of the plug rod 22 is provided with a plug guide slope 23, and the upper part of the plug rod 22 is provided with a limit support ring 24. The limit stop 16 is made of high temperature resistant material and has a high temperature resistant and anti-corrosion coating on the outer layer to improve the service life of the limit stop 16.
[0022] The middle connecting plate 10 has symmetrical storage slots 21 on both sides. One end of the supporting rotating plate 14 is rotatably connected to the middle connecting plate 10. The rotatable connection end has a semi-circular arc structure. The bottom surface of the other end of the supporting rotating plate 14 is provided with a support block 15. The bottom surface of the support block 15 is flush with the bottom surface of the plug claw 6.
[0023] The inner side of the opening end of the plug claw 6 is provided with an installation guide slope 7, and the outer side of the fixed connecting seat 11 is fixedly provided with a mating plug plate 12. The installation placement slot 2 and the removal placement slot 3 are both open slot structures to facilitate the accommodation of the water inlet structure.
[0024] The end of the robotic arm 17 is connected to a movable connecting seat 18. The movable connecting seat 18 is provided with a mating insertion groove 20. The shape and specifications of the mating insertion groove 20 are adapted to the mating insertion plate 12. Both the movable connecting seat 18 and the mating insertion plate 12 are provided with corresponding fixing mating holes 13. Fixing screws 19 are provided in the fixing mating holes 13 to lock the fixing connecting seat 11 and the movable connecting seat 18.
[0025] The upper surface of the plug claw 6 is provided with a stable support slope 25. The lower end of the stable support slope 25 is located at one end of the connecting end plate 9, which facilitates the sliding of the plugged water inlet towards one end of the connecting end plate 9, thereby improving the stability of the support structure.
[0026] The working principle of this utility model is as follows: Referring to the robotic arm 17 used in application number CN202122487562.1, when replacing a long water nozzle, the operator controls the movement of the robotic arm 17. A removal structure 5 is provided on the moving connecting seat 18 of the robotic arm 17. The insertion claw 6 on the removal structure 5 is inserted and positioned at the outer step of the long water nozzle, effectively supporting it. The insertion claw 6 is provided with a stable support slope 25. As the long water nozzle is removed and falls completely onto the insertion claw 6, it tends to slide along the stable support slope 25. A limiting stop 16 is inserted and installed in the limiting insertion hole 8, effectively limiting the outer end position of the insertion claw 6 and enhancing stability during movement. To ensure the safety of the water inlet, the removal structure 5 with the long water inlet is placed in the removal and placement slot 3 under the action of the robotic arm 17. The support rotating plate 14 on the removal structure 5 is rotated outward and supported on the support platform frame 1, which effectively improves the stability of the removal structure 5 placed on the support platform frame 1. The fixing screws 19 on the fixed connecting seat 11 on the removal structure 5 and the moving connecting seat 18 on the robotic arm 17 are removed, so that the robotic arm 17 and the moving connecting seat 18 are separated and moved to the position of the installation slot 2. The installation structure 4 at the installation slot 2 is fixedly connected to the moving connecting seat 18. After the support rotating plate 14 on the installation structure 4 is rotated and stored, the robotic arm 17 drives the installation structure 4 to move to the installation position for the replacement of the new long water inlet. The device can also be used to replace the submersible water inlet. The specifications of the plug claw 6 are compatible with the specifications of the long water inlet and the submersible water inlet. The installation structure 4 and the removal structure 5 are made of high temperature resistant materials and coated with a high temperature resistant and anti-corrosion coating to improve the high temperature resistance. The mating position between the support rotating plate 14 and the storage groove 21 can be set with an iron plate, a magnetic adsorption structure or a damping structure to prevent the support rotating plate 14 from rotating out without reason. The specific structure is not limited. This utility model is provided with an installation structure 4 and a removal structure 5. Both the installation structure 4 and the removal structure 5 are provided with plug-in claws 6 and limit brackets 16, which are used to effectively plug in and support the sprue structure and limit its movement. The removal and installation processes can be carried out quickly and effectively, and the mechanical arm 17 can be used to quickly change the sprue structure. The support platform frame 1 is provided with a placement slot 2 for installation and a placement slot 3 for removal to place the support installation structure 4 and the removal structure 5 respectively. Rotating storage support rotating plates 14 are provided on both sides of the installation structure 4 and the removal structure 5 to improve the stability of the structure placement state. The mating structure of the fixed connecting seat 11 and the movable connecting seat 18 is open, and the mating state can be seen intuitively, which makes the connection operation easier.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A long nozzle and submerged nozzle integrated quick-change device, comprising a support platform frame (1) and a mechanical arm (17), characterized in that, The support platform frame (1) is provided with an installation slot (2) and a removal slot (3). An installation structure (4) is provided at the installation slot (2), and a removal structure (5) is provided at the removal slot (3). The removal structure (5) includes a plug claw (6), a connecting end plate (9), an intermediate connecting plate (10), and a fixed connecting seat (11). The plug claw (6) has a hollow placement slot in the middle, and one end of the plug claw (6) is fixed to the connecting end plate (9). The connection is made such that one end of the connecting end plate (9) away from the plug claw (6) is fixedly connected to the intermediate connecting plate (10), and the other end of the intermediate connecting plate (10) is fixedly connected to the fixed connecting seat (11). A limit plug hole (8) is provided on the upper surface of the end of the plug claw (6) away from the connecting end plate (9). A limit stop (16) is inserted and installed in the limit plug hole (8). Rotary support plates (14) for rotation adjustment are provided on both sides of the intermediate connecting plate (10).
2. The long nozzle and submerged entry nozzle integrated quick change device according to claim 1, characterized in that, The limiting insertion hole (8) is a rectangular hole structure, the limiting stop (16) is a U-shaped structure, and the lower end of the limiting stop (16) is provided with a plug rod (22). The shape and specifications of the plug rod (22) are adapted to the shape and specifications of the limiting insertion hole (8).
3. The long nozzle and submerged entry nozzle integrated quick change device according to claim 2, characterized in that, The lower end of the plug rod (22) is provided with a plug guide slope (23), the upper part of the plug rod (22) is provided with a limit support ring (24), and the limit stop (16) is made of high temperature resistant material and has a high temperature resistant anti-corrosion coating on the outer layer.
4. The long nozzle and submerged entry nozzle integrated quick change device according to claim 3, characterized in that, The intermediate connecting plate (10) has symmetrical storage slots (21) on both sides. One end of the supporting rotating plate (14) is rotatably connected to the intermediate connecting plate (10). The rotatable connection end has a semi-circular arc structure. A support block (15) is provided on the bottom surface of the other end of the supporting rotating plate (14).
5. The combined long nozzle and submerged entry nozzle quick-change device according to claim 4, characterized in that The inner side of the opening end of the plug claw (6) is provided with an installation guide slope (7), and the outer side of the fixed connecting seat (11) is fixedly provided with a mating plug plate (12). The installation placement slot (2) and the removal placement slot (3) are both open slot structures.
6. The combined long nozzle and submerged entry nozzle quick-change device according to claim 5, characterized in that The end of the robotic arm (17) is connected to a movable connecting seat (18), and the movable connecting seat (18) is provided with a mating insertion groove (20). The shape and specifications of the mating insertion groove (20) are adapted to the mating insertion plate (12). The movable connecting seat (18) and the mating insertion plate (12) are both provided with corresponding fixing mating holes (13), and fixing screws (19) are provided in the fixing mating holes (13).
7. The combined long nozzle and submerged entry nozzle quick-change device according to claim 6, characterized in that The upper surface of the plug claw (6) is provided with a stable support slope (25), and the lower inclined end of the stable support slope (25) is located at one end of the connecting end plate (9).