Continuous casting dummy bar head structure and dummy bar
By designing a detachable continuous casting dummy bar structure, the problem of easy damage to the dummy bar was solved, enabling smooth pulling out of the dummy bar and cost savings, thus ensuring continuous production of the cast billet.
Patent Information
- Application Number
- CN202520436983.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-13
AI Technical Summary
In the existing technology, the load on the dummy bar of the straightening machine is relatively large, which makes the dummy bar head easy to be crushed and cause local deformation, affecting the smoothness of the dummy bar being pulled out of the crystallizer and the billet output.
A continuous casting dummy head structure is designed, including a detachable dummy head base and a bottom block. The dummy head groove is formed by detachable connection and locking components. The straightening roller presses against the bottom block. When the bottom block is damaged, it can be replaced separately, avoiding the need to replace the entire dummy head.
It effectively reduces production costs, ensures the quality of finished products in continuous casting operations, improves the smoothness of the dummy bar pulling out of the crystallizer, and reduces production losses.
Smart Images
Figure CN223819616U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of metal billet production and processing equipment, and in particular to a continuous casting ingot head structure and ingot rod. Background Technology
[0002] The dummy bar consists of a dummy bar head, a transition piece, and a bar body. Before casting, the dummy bar head and part of the transition piece enter the crystallizer. After casting begins, the liquid metal solidifies and forms a rigid connection with the dummy bar head. The dummy bar is pulled by a straightening machine to continuously pull the billet out of the crystallizer.
[0003] In existing straightening machines, the straightening rollers that press against the outer periphery of the digitizing rod drive the digitizing rod to pull it out of the crystallizer. However, because the straightening rollers exert a large load on the digitizing rod, the digitizing head is easily damaged, resulting in local deformation. This makes the process of pulling the digitizing rod out of the crystallizer unsmooth, and the liquid level fluctuates when the digitizing rod is opened, leading to production loss. Utility Model Content
[0004] The purpose of this invention is to provide a continuous casting dummy bar structure and dummy bar rod, which facilitates the replacement of parts damaged by the straightening rollers and reduces production costs.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] A continuous casting dummy head structure, located at the end of the dummy head rod, includes:
[0007] The spindle head base is long and narrow, with one end being the working end and the other end being the connecting end. The working end has a first mounting groove on its outer periphery, and the connecting end can be detachably connected to the spindle rod.
[0008] The bottom block is configured to be detachably connected to the working end. The bottom block and the working end can be spliced into a cylindrical structure. A second mounting groove is provided on the bottom block. The second mounting groove can communicate with the first mounting groove to form a spindle guide groove. The spindle guide hook is detachably installed in the spindle guide groove. The straightening roller can press against the bottom block.
[0009] Preferably, a locking element is also included. The spindle head base has a first connecting hole, and the bottom block has a through second connecting hole. When the spindle head base and the bottom block are spliced together, the first connecting hole and the second connecting hole are connected to each other to form a locking hole, and the locking element can be fully inserted into the locking hole.
[0010] Preferably, the locking element can be screwed onto either the spindle head base or the bottom block.
[0011] Preferably, the locking holes are arranged in multiple sets at intervals along the length direction of the ingot head base, and each set includes two locking holes symmetrically arranged with respect to the ingot groove.
[0012] Preferably, the extension direction of the locking hole is inclined relative to the vertical direction.
[0013] Preferably, the working end is provided with a first splicing surface, and the bottom block is provided with a second splicing surface, the second splicing surface being able to press against the first splicing surface, and both the first splicing surface and the second splicing surface are planar structures.
[0014] Preferably, the projection of the ingot slot on the horizontal plane is T-shaped.
[0015] The dummy bar includes any of the continuous casting dummy bar head structures and the bar body described above, wherein the continuous casting dummy bar head structure is detachably connected to the end of the bar body.
[0016] Preferably, the device also includes a connector, wherein the connecting end has a connecting groove extending in a horizontal direction and a third connecting hole extending in another horizontal direction. The connecting groove communicates with the third connecting hole. When the rod extends into the connecting groove, the connector can extend into the third connecting hole and pass through the rod.
[0017] The beneficial effects of this utility model are:
[0018] The bottom block and the dummy bar base are spliced together to connect the first and second mounting slots, forming a dummy bar groove. One end of the dummy bar hook is installed in the dummy bar groove, and the other end is integrated with the billet to form a rigid connection. The straightening roller presses against the outer periphery of the bottom block. By rotating the straightening roller, the dummy bar head is driven, thereby pushing the dummy bar rod to pull the billet out of the crystallizer. If the bottom block is damaged or deformed by the straightening roller, the bottom block can be replaced to continue the operation without replacing the entire dummy bar head, which greatly saves production costs and ensures the quality of the finished product in continuous casting. Attached Figure Description
[0019] Figure 1 This is a partial cross-sectional view of the continuous casting dummy head structure of this utility model from one position upwards;
[0020] Figure 2 This is a schematic diagram of the continuous casting ingot head structure of this utility model from another orientation.
[0021] Figure 3 This is a schematic diagram of the bottom block with one position facing upwards, as described in an embodiment of this utility model.
[0022] In the picture:
[0023] 1. Spindle head base; 10. First mounting groove;
[0024] 2. Bottom block; 20. Second mounting slot; 21. Second splicing surface;
[0025] 3. Locking components;
[0026] 4. Connectors. Detailed Implementation
[0027] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0030] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0031] like Figures 1-3As shown, this utility model provides a continuous casting dummy bar structure for pulling the cast billet out of the crystallizer. The continuous casting dummy bar structure is located at the end of the dummy bar rod and includes a dummy bar base 1 and a bottom block 2. The dummy bar base 1 is elongated, with one end being the working end and the other end being the connecting end. A first mounting groove 10 is formed on the outer periphery of the working end, and the connecting end can be detachably connected to the rod body of the dummy bar. The bottom block 2 is configured to be detachably connected to the working end, and the bottom block 2 and the working end can be spliced into a cylindrical structure. A second mounting groove 20 is formed on the bottom block 2, which can communicate with the first mounting groove 10 to form a dummy bar groove. A dummy bar hook is detachably installed in the dummy bar groove, and a straightening roller can press against the bottom block 2.
[0032] The bottom block 2 and the dummy bar base 1 are spliced together to connect the first mounting groove 10 and the second mounting groove 20 to form a dummy bar groove. One end of the dummy bar hook is installed in the dummy bar groove, and the other end is integrated with the billet to form a rigid connection. The straightening roller presses against the outer periphery of the bottom block 2. By rotating the straightening roller, the dummy bar head is driven, thereby pushing the dummy bar rod to pull the billet out of the crystallizer. If the bottom block 2 is damaged or deformed by the straightening roller, the bottom block 2 can be replaced to continue the operation without replacing the entire dummy bar head, which greatly saves production costs and ensures the quality of the finished product of the continuous casting operation.
[0033] Specifically, the continuous casting dummy head structure also includes a locking component 3. A first connecting hole is provided on the dummy head base 1, and a through second connecting hole is provided on the bottom block 2. When the dummy head base 1 and the bottom block 2 are joined together, the first connecting hole and the second connecting hole communicate with each other to form a locking hole, into which the locking component 3 can fully extend. This configuration enables the dummy head base 1 and the bottom block 2 to be detachably connected and locked together.
[0034] More specifically, the locking member 3 can be screwed onto either the spindle head base 1 or the bottom block 2. This configuration improves the connection strength between the spindle head base 1 and the bottom block 2. Exemplarily, in this embodiment, the locking member 3 is specifically a screw structure.
[0035] Specifically, multiple sets of locking holes are spaced apart along the length of the ingot-drawing head base 1, with each set including two locking holes symmetrically arranged about the ingot-drawing groove. This arrangement makes the force on the bottom block 2 more balanced, improving stability.
[0036] Preferably, in this embodiment, the extending direction of the locking hole is inclined relative to the vertical direction. This arrangement allows the pressure of the straightening roller on the bottom block 2 to be partially converted into a horizontal component, thereby improving the connection strength between the spindle head base 1 and the bottom block 2.
[0037] Specifically, the working end is provided with a first splicing surface, and the bottom block 2 is provided with a second splicing surface 21. The second splicing surface 21 can press against the first splicing surface. Both the first splicing surface and the second splicing surface 21 are planar structures.
[0038] Specifically, the projection of the dummy bar onto the horizontal plane is T-shaped. This design allows the continuous casting dummy bar head structure to be applicable to different types of dummy bar hooks, making it highly versatile. Furthermore, the T-shaped structure increases the contact area between the end of the dummy bar hook and the bottom of the dummy bar.
[0039] It should be noted that the specific connection method between the ingot trough and the ingot hook refers to the existing technology in this field, and can be welding, hooking, etc., and is not specifically limited here.
[0040] This utility model also provides a dredger rod, including the aforementioned continuous casting dredger head structure and a rod body, wherein the continuous casting dredger head structure is detachably connected to the end of the rod body. It should be noted that this dredger rod possesses all the beneficial effects of the aforementioned continuous casting dredger head structure, which will not be elaborated upon here.
[0041] Specifically, the derrick also includes a connector 4, with a connecting groove extending horizontally and a third connecting hole penetrating in another horizontal direction at the connecting end. The connecting groove connects to the third connecting hole. When the rod extends into the connecting groove, the connector 4 can extend into the third connecting hole and pass through the rod. The connector 4 enables a detachable connection and mutual locking between the derrick head structure and the rod.
[0042] More specifically, the through direction of the third connecting hole is perpendicular to the extension direction of the connecting groove, so as to improve the connection strength between the rod and the connecting end.
[0043] More specifically, the connector 4 can be a pin, rivet, or screw structure commonly used in the art, without any specific limitation.
[0044] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A continuous casting dummy bar head structure, located at the end of the dummy bar, characterized in that, include: The spindle head base (1) is long and narrow, with one end being the working end and the other end being the connecting end. The working end has a first mounting groove (10) on its outer periphery, and the connecting end can be detachably connected to the spindle rod. The bottom block (2) is configured to be detachably connected to the working end. The bottom block (2) and the working end can be spliced into a cylindrical structure. A second mounting groove (20) is provided on the bottom block (2). The second mounting groove (20) can communicate with the first mounting groove (10) to form a spindle guide groove. The spindle guide hook is detachably installed in the spindle guide groove. The straightening roller can press against the bottom block (2).
2. The continuous casting ingot head structure according to claim 1, characterized in that, It also includes a locking component (3). The spindle head base (1) has a first connecting hole, and the bottom block (2) has a through second connecting hole. When the spindle head base (1) and the bottom block (2) are spliced together, the first connecting hole and the second connecting hole are connected to each other to form a locking hole. The locking component (3) can be fully inserted into the locking hole.
3. The continuous casting ingot head structure according to claim 2, characterized in that, The locking member (3) can be screwed onto either the spindle head base (1) or the bottom block (2).
4. The continuous casting ingot head structure according to claim 2, characterized in that, The locking holes are arranged in multiple sets along the length direction of the ingot head base (1), and each set includes two locking holes symmetrically arranged about the ingot groove.
5. The continuous casting ingot head structure according to claim 2, characterized in that, The extension direction of the locking hole is inclined relative to the vertical direction.
6. The continuous casting dummy head structure according to any one of claims 1-5, characterized in that, The working end is provided with a first splicing surface, and the bottom block (2) is provided with a second splicing surface (21). The second splicing surface (21) can press against the first splicing surface. Both the first splicing surface and the second splicing surface (21) are planar structures.
7. The continuous casting ingot head structure according to any one of claims 1-5, characterized in that, The projection of the ingot slot on the horizontal plane is T-shaped.
8. A derrick, characterized in that, The continuous casting dummy head structure and rod body are included as described in any one of claims 1-7, wherein the continuous casting dummy head structure is detachably connected to the end of the rod body.
9. The derrick according to claim 8, characterized in that, It also includes a connector (4), the connecting end of which has a connecting groove extending in the horizontal direction and another third connecting hole extending in the horizontal direction. The connecting groove is connected to the third connecting hole. When the rod extends into the connecting groove, the connector (4) can extend into the third connecting hole and pass through the rod.