Continuous casting dummy bar head and dummy bar structure

Abstract

The utility model relates to a continuous casting dummy bar head and a dummy bar structure, a dummy bar head body is provided with a groove and a bolt hole, the bolt hole penetrates through the dummy bar head and the groove, two sides of the dummy bar head body are provided with bolt grooves which are intersected and communicated with the bolt hole, the dummy bar structure further comprises a dummy bar and a bolt piece, and the tail portion of the dummy bar can be matched with the groove in a limiting mode. The head of the dummy bar extends out of the dummy bar head body, the two ends of the bolt piece are provided with bent parts hidden in the bolt grooves, the problem that a crystallizer copper pipe is scratched by the bolt piece in the process that the dummy bar structure is fed into or pulled out of the crystallizer can be solved through hidden installation of the bent parts, the service life of the copper pipe is prolonged, and left-right movement of the bolt piece is limited. When the bolt piece is arranged in the bolt hole and located below the dummy bar, the dummy bar can be effectively prevented from being disengaged, pulling-off is prevented, the steel breakout risk is reduced, meanwhile, the injury danger coefficient caused by misoperation of workers in the dummy bar head bolt piece dismounting or mounting process is effectively reduced, and the dummy bar head bolt piece is simple in structure, convenient to mount and suitable for application and popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of continuous casting equipment, and in particular relates to a continuous casting ingot starter head and an ingot starter structure. Background Art

[0002] Continuous casting is a casting process in which molten steel continuously passes through the continuous casting machine crystallizer, solidifies into a hard shell, and is continuously pulled out from the crystallizer outlet, and is cut into billets after being cooled and solidified. The full-arc billet continuous casting machine is equipped with a rigid dummy bar system. Figure 1 The ingot dummy structure shown in the figure comprises an ingot dummy head 1 and an ingot dummy rod 2. The ingot dummy head 1 is provided with a groove 3 and a pin hole 4. The groove 3 is open to the bottom and front end of the ingot dummy head 1. The pin hole 4 can pass through the groove 3 when horizontally penetrating the ingot dummy head 1. The ingot dummy rod 2 is provided with a baffle 6. After the ingot dummy rod 2 is placed in the groove 3 through the lower opening, the tail 202 of the ingot dummy rod can be limited by the step in the groove 3 to limit the forward and backward movement of the ingot dummy rod 2. The head 201 of the ingot dummy rod can pass through the groove 3 and extend out of the ingot dummy head 1. The baffle 6 can block the groove 3. The front end opening is provided with a straight metal pin 5 which passes through the pin hole 4 and is placed under the dummy rod 2 to limit the downward movement of the dummy rod 2. The dummy rod 2 can be assembled on the dummy head 1. When the dummy structure is used, the dummy rod 2 and the dummy head 1 are sent into the crystallizer and the lower mouth of the crystallizer is sealed. The tail end of the dummy head 1 is connected with a traction device. After pouring, as the molten steel injected into the crystallizer solidifies and solidifies into one with the dummy structure, the ingot can be continuously pulled out of the lower mouth of the crystallizer by traction of the dummy structure, and the pin 5 can be automatically pressed off when the dummy is removed.

[0003] Its main defects are: the two ends of the pin hole 4 are open structures. If the pin 5 is short, it is easy to pull off and increase the frequency of steel leakage. If the pin 5 is long, the two ends of the pin 5 are exposed on both sides of the ingot guide head 1. During the process of the ingot guide structure being sent into or pulled out of the crystallizer, the working layer of the copper tube of the crystallizer may be scratched and damaged, affecting the life of the copper tube and the surface quality of the ingot, and even causing steel leakage. The pin 5 needs to be manually knocked to reduce the wear on the end of the pin 5, which makes the labor intensity of workers greater during the removal or installation of the pin 5, and the risk factor of injury is easily increased due to improper operation of employees. Utility Model Content

[0004] The utility model aims to solve at least one of the above-mentioned technical problems to a certain extent. The utility model provides a continuous casting ingot starter head and an ingot starter structure, which are easy to disassemble and assemble, and effectively reduce the risks of pull-out, steel leakage, crystallizer damage and misoperation.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A continuous casting starter head comprises a starter head body, wherein the starter head body is provided with a groove and a pin hole, wherein the groove is open to the bottom and front end of the starter head body, and the pin hole penetrates the starter head and passes through the groove, and pin grooves are provided on both sides of the starter head body, wherein the pin grooves are open to the outside of the starter head, and the pin grooves are intersected and connected with the pin hole.

[0007] Furthermore, the latch groove is perpendicular to the latch hole, and the latch groove is connected to one end of the latch hole.

[0008] A continuous casting ingot starter structure comprises an ingot starter rod, a latch member and an ingot starter head body as described above, wherein the tail of the ingot starter rod can cooperate with a groove to limit the position, the head of the ingot starter rod extends out of the ingot starter head body, the ingot starter rod is provided with a baffle covering the front end opening of the groove, the latch member is placed in the latch hole and is located below the ingot starter rod, and both ends of the latch member are provided with bent portions hidden in the latch groove.

[0009] Furthermore, the latch member is a U-shaped member, the middle of the U-shaped member is placed in the latch hole, and two sides of the U-shaped member are placed in the latch grooves.

[0010] Furthermore, the U-shaped member is a U-shaped tube.

[0011] Furthermore, the latch member includes a plurality of stacked latch members.

[0012] Furthermore, the latch member includes two oppositely connected L-shaped members, one section of the L-shaped member is placed in the latch hole, and the other section of the L-shaped member is placed in the latch groove.

[0013] Furthermore, the L-shaped piece is an L-shaped tube.

[0014] Furthermore, one of the L-shaped pieces is provided with a hole, and the other L-shaped piece can be interference fit with the hole.

[0015] Furthermore, the other L-shaped member is provided with a protrusion that matches the hole.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] (1) The two sides of the continuous casting ingot starter head are provided with a pin groove for hidden installation of the bent part of the pin, which can solve the problem of the pin scratching the copper tube of the crystallizer when the ingot starter structure is sent into or pulled out of the crystallizer, thereby improving the service life of the copper tube and reducing the risk of steel leakage.

[0018] (2) The pin of the continuous casting starter structure can limit the left and right movement of the pin through the bend, so that when the pin is placed in the pin hole and located below the starter rod, the starter rod can be stably restricted from escaping from the opening below the groove, thereby preventing pull-out and steel leakage accidents. Excessive manual hammering is not required, which can reduce the labor intensity of workers and effectively reduce the risk factor of injury caused by improper operation of employees during the removal or installation of the starter head pin.

[0019] (3) The latch can be further made of a U-shaped tube or a butt-jointed L-shaped tube, which has a simple structure and is easy to install. It is convenient for the dummy rod to break the latch when the dummy ingot is removed, and is more convenient for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is the ingot-starting structure in the prior art of the utility model;

[0022] Figure 2 This is a front view of Embodiment 1 of the present utility model;

[0023] Figure 3 It is a left side view of the embodiment 1 of the utility model;

[0024] Figure 4 It is a top view of embodiment 1 of the utility model;

[0025] Figure 5 This is a front view of Embodiment 2 of the present utility model;

[0026] Figure 6 This is a structural diagram of a latch member according to Embodiment 2 of the present utility model;

[0027] Figure 7 This is a front view of Embodiment 3 of the present utility model;

[0028] Figure 8 It is a structural diagram of a latch member of Embodiment 4 of the present utility model;

[0029] Fig. 9 It is a structural diagram of the latch member of Example 5 of the present utility model.

[0030] Markings in the figure: dummy head 1, dummy rod 2, dummy rod head 201, dummy rod tail 202, groove 3, latch hole 4, latch 5, baffle 6;

[0031] Ingot starter body 7, latch groove 8, latch member 9, bent portion 901, U-shaped tube 902, L-shaped tube 903, hole 904, convex portion 905, and fillet 10. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the description of the present utility model, it should be understood that the terms "center", "length", "front", "thick", "upper", "lower", "tail", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Embodiment 1:

[0036] In view of the risk of pull-out, steel leakage, mold damage and misoperation caused by the unreasonable structure of the latch hole 4 and the latch 5 in the prior art, it is considered to solve this problem by adding and hiding the structural design of the bent portion 901 of the latch member 9, such as Figure 2-4 As shown, a preferred embodiment of a continuous casting ingot starter head described in the utility model is shown, the continuous casting ingot starter head comprises an ingot starter head body 7, the ingot starter head body 7 is provided with a groove 3 and a latch hole 4, the groove 3 is open to the bottom and front end of the ingot starter head body 7, the latch hole 4 penetrates the ingot starter head 1 and passes through the groove 3, and latch grooves 8 are provided on both sides of the ingot starter head body 7, the latch grooves 8 are open to the outside of the ingot starter head 1, the latch grooves 8 are intersected and connected with the latch holes 4, so that the latch member 9 can be limited to the left and right movement of the latch member 9 by the added latch grooves 8, so as to prevent pull-off and steel leakage accidents, and the problem of the latch member 9 scratching the copper tube of the crystallizer during the process of feeding the ingot starter structure into or pulling it out of the crystallizer can be solved by hiding the end of the latch member 9 in the latch groove 8, thereby improving the service life of the copper tube.

[0037] Furthermore, the latch groove 8 is perpendicular to the latch hole 4, which is more convenient for limiting the movement of the latch member 9. The latch groove 8 is connected to one end of the latch hole 4 to simplify the structure of the latch member 9.

[0038] Furthermore, a rounded corner 10 is provided on the edge of the starter head body 7 to further avoid wear on the copper tube.

[0039] Embodiment 2:

[0040] Based on the same concept, Figure 5 As shown, a preferred embodiment of a continuous casting ingot starter structure described in the utility model is shown, and the continuous casting ingot starter structure includes an ingot starter rod 2, a latch member 9 and an ingot starter head body 7 as described in Example 1, and the tail portion 202 of the ingot starter rod can be limitedly matched with the groove 3, and the head portion 201 of the ingot starter rod extends out of the ingot starter head body 7, and the ingot starter rod 2 is provided with a baffle 6 covering the front end opening of the groove 3, and the latch member 9 is placed in the latch hole 4 and located below the ingot starter rod 2, so the ingot starter rod 2 can be restricted from escaping from the opening below the groove 3 by the latch member 9, and the two ends of the latch member 9 are provided with bent portions 901 hidden in the latch groove 8, so the left and right movement of the latch member 9 can be restricted by the bent portion 901.

[0041] When in use, the ingot guide structure is sent into the crystallizer and the lower mouth of the crystallizer is sealed, and the tail end of the ingot guide head body 7 is connected to the traction device. After pouring, as the molten steel injected into the crystallizer solidifies and solidifies into one with the ingot guide structure, the ingot guide structure can be continuously pulled out from the lower mouth of the crystallizer. Since the bend 901 is hidden in the pin groove 8, the surface quality problems of the ingot and production accidents such as steel leakage caused by surface defects of the working layer of the copper tube can be reduced. There is no need for excessive manual knocking, which effectively reduces the risk of injury caused by improper operation of employees during the removal or installation of the pin part 9 of the ingot guide head body 7. The pin part 9 can be automatically pressed off when the ingot is removed.

[0042] like Figure 6 As shown, further, the latch member 9 is a U-shaped member, the middle of the U-shaped member is placed in the latch hole 4, and the two sides of the U-shaped member serve as bent portions 901 placed in the latch groove 8. During installation, the latch member 9 can be inserted into the latch hole 4, and then the two ends are bent to form a U shape. The structure is simple and the installation is convenient.

[0043] Furthermore, the U-shaped member is a U-shaped tube 902 , which is easier to bend, and when the dummy ingot is removed, it is easier for the dummy rod 2 to break the middle of the U-shaped tube 902 and disengage from the groove 3 .

[0044] Embodiment 3:

[0045] Based on the same concept, the continuous casting ingot structure is different from that of Example 2 in that: Figure 7 As shown, the latch member 9 includes a plurality of stacked ones, and the cross section of the latch hole 4 can adopt a waist-shaped hole 904 structure to further increase the anti-slip strength and ensure that the starter head 1 will not be pulled off before the starter is released.

[0046] Embodiment 4:

[0047] Based on the same concept, the continuous casting ingot structure is different from that of Example 2 in that: Figure 8 As shown, the latch member 9 includes two oppositely connected L-shaped members, one section of the L-shaped member is placed in the latch hole 4, and the other section of the L-shaped member serves as a bending portion 901 and is placed in the latch groove 8. The L-shaped member can be bent into shape before being inserted into the latch hole 4, which makes it easier to hide the latch member 9.

[0048] Furthermore, the L-shaped piece is an L-shaped tube 903 , which is easier to bend, and when the dummy ingot is removed, it is easier for the dummy rod 2 to break the middle of the U-shaped tube 902 and disengage from the groove 3 .

[0049] Furthermore, one of the L-shaped pieces is provided with a hole 904, and the other L-shaped piece can be interference-fitted with the hole 904, and can be quickly installed and connected through the interference fit.

[0050] Embodiment 5: The difference between the continuous casting ingot structure and the embodiment 4 is that: Fig. 9 As shown, another L-shaped member is provided with a protrusion 905 that cooperates with the hole 904. Furthermore, the protrusion 905 can avoid the middle part of the pin hole 4, making it easier for the dummy rod 2 to break the middle part of the U-shaped tube 902 and disengage from the groove 3.

[0051] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention. They are not intended to limit the protection scope of the present invention. All equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A continuous casting starter head, comprising a starter head body (7), wherein the starter head body (7) is provided with a groove (3) and a pin hole (4), wherein the groove (3) opens to the bottom and the front end of the starter head body (7), and the pin hole (4) passes through the starter head (1) and the groove (3), wherein: The two sides of the starter head body (7) are provided with latch grooves (8), the latch grooves (8) are open to the outside of the starter head (1), and the latch grooves (8) are intersected and communicated with the latch holes (4).

2. A continuous casting starter head according to claim 1, characterized in that: The latching slot (8) is perpendicular to the latching hole (4), and the latching slot (8) is connected to one end of the latching hole (4).

3. A continuous casting ingot starting structure, characterized in that: The invention comprises a dummy rod (2), a latch member (9) and a dummy head body (7) as claimed in claim 1 or 2, wherein the tail portion (202) of the dummy rod can be limitedly matched with the groove (3), the head portion (201) of the dummy rod extends out of the dummy head body (7), the dummy rod (2) is provided with a baffle (6) covering the front end opening of the groove (3), the latch member (9) is placed in the latch hole (4) and below the dummy rod (2), and bent portions (901) hidden in the latch groove (8) are provided at both ends of the latch member (9).

4. A continuous casting ingot starter structure according to claim 3, characterized in that: The latch member (9) is a U-shaped member, the middle of the U-shaped member is placed in the latch hole (4), and both sides of the U-shaped member are placed in the latch grooves (8).

5. A continuous casting ingot starting structure according to claim 4, characterized in that: The U-shaped piece is a U-shaped tube (902).

6. A continuous casting ingot starter structure according to claim 3, characterized in that: The latch member (9) comprises a plurality of stacked latch members.

7. A continuous casting ingot starter structure according to claim 3, characterized in that: The latch member (9) comprises two oppositely connected L-shaped members, one section of the L-shaped member is placed in the latch hole (4), and the other section of the L-shaped member is placed in the latch groove (8).

8. A continuous casting ingot starter structure according to claim 7, characterized in that: The L-shaped piece is an L-shaped tube (903).

9. A continuous casting ingot starter structure according to claim 7, characterized in that: One of the L-shaped pieces is provided with a hole (904), and the other L-shaped piece can be interference-fitted with the hole (904).

10. A continuous casting ingot starter structure according to claim 9, characterized in that: The other L-shaped piece is provided with a protrusion (905) that cooperates with the hole (904).

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