Dummy bar head for special-shaped blank

Abstract

The utility model discloses a dummy bar head for a special-shaped blank, belongs to the technical field of metallurgical equipment, and aims to solve the problem that in the prior art, a dummy bar head and a cast-on piece are easily separated in an online dummy bar separation mode, the section of the dummy bar head (1) for the special-shaped blank is H-shaped, and a lower clamping groove (14) is formed in the lower surface of the dummy bar head (1) for the special-shaped blank; the lower clamping groove (14) is in a U shape, an opening of the U shape faces forwards, and the lower clamping groove (14) is communicated with the front side face of the dummy bar head (1) for the special-shaped blank. According to the dummy bar head for the special-shaped blank, the inserting hole and the inserting piece are arranged on the dummy bar head, the inserting piece can prevent the dummy bar head from being separated from a casting piece before a dummy bar is separated from a casting blank, and when the dummy bar is separated from the casting blank, the dummy bar head can be conveniently and rapidly separated from the casting piece, so that the dummy bar is safely separated from the casting blank through an online stripping device, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment, in particular to an ingot starter for special-shaped blanks. Background Art

[0002] H-beam is an economical cross-section profile with excellent mechanical properties and advantages such as light weight, quick construction, good seismic resistance, energy saving and consumption reduction. H-beam is rolled using special-shaped continuous casting billets. In the existing production of special-shaped continuous casting billets, the ingots are removed by online flame cutting, and then workers are required to process the billet heads connected to the ingot heads offline. Since special-shaped billets are generally produced in multiple streams, it is inconvenient to process the billet heads during the production process, and production needs to be stopped before processing, which affects production efficiency. In order to improve production efficiency, technicians in this field subsequently improved the method for online ingot removal. However, the problem with the online ingot removal method is that the billet is easily separated between the ingot head and the casting before the ingot is removed, causing production accidents and affecting production efficiency. Utility Model Content

[0003] In order to solve the problem that the ingot head and the casting are easily separated in the above-mentioned online ingot stripping method, the utility model provides an ingot head for special-shaped billets, and the ingot head for special-shaped billets is provided with a plug hole and a plug-in component. Before the billet is stripped of the ingot, the plug-in component can prevent the ingot head from being separated from the casting. When the billet is stripped of the ingot, the ingot head can be easily and quickly separated from the casting, thereby safely realizing the stripping of the ingot by the online ingot stripping device and improving production efficiency.

[0004] The technical solution adopted by the embodiment of the utility model to solve the technical problem is:

[0005] A starter head for a profiled blank, the cross section of which is H-shaped, the starter head for the profiled blank comprises a left vertical plate, a middle horizontal plate and a right vertical plate connected in sequence from left to right, a lower clamping groove is provided on the lower surface of the starter head for the profiled blank, the lower clamping groove is U-shaped, the opening of the U-shape faces forward, and the lower clamping groove is connected to the front side of the starter head for the profiled blank; a left plug hole is provided on the left side of the starter head for the profiled blank, a left plug-in component is plugged into the left plug hole, and the left plug-in component can Prevent the cast-in-place piece from escaping from the lower clamping groove; or, a right plug-in hole is provided on the right side of the ingot head for the profiled blank, a right plug-in component is inserted in the right plug-in hole, and the right plug-in component can prevent the cast-in-place piece from escaping from the lower clamping groove; or, a left plug-in hole is provided on the left side of the ingot head for the profiled blank, a left plug-in component is inserted in the left plug-in hole, and a right plug-in hole is provided on the right side of the ingot head for the profiled blank, a right plug-in component is inserted in the right plug-in hole, and the left plug-in component and the right plug-in component can prevent the cast-in-place piece from escaping from the lower clamping groove.

[0006] The lower clamping groove contains a left groove section, a middle groove section and a right groove section connected in sequence from left to right. The left groove section and the right groove section both extend in the front-to-back direction, and the middle groove section extends in the left-to-right direction. The rear end of the ingot starter head for the special-shaped blank is the ingot starter rod connection end.

[0007] The left groove section is located at the connection between the left vertical plate and the middle horizontal plate, the middle groove section is located inside the middle horizontal plate, and the right groove section is located at the connection between the middle groove section and the right groove section. The left groove section and the right groove section are symmetrical and mirror images of each other.

[0008] The cross section of the middle groove section is a first trapezoid, the width of the top side of the first trapezoid is 22mm-26mm, and the height of the first trapezoid is 50mm-60mm.

[0009] The angle between the front waist of the first trapezoid and the top side of the first trapezoid is 94°-98°, and the angle between the back waist of the first trapezoid and the top side of the first trapezoid is 98°-101°.

[0010] The bottom surface width of the left groove section is 22 mm-26 mm, and the bottom surface of the left groove section and the bottom surface of the middle groove section are located in the same horizontal plane.

[0011] The included angle between the left side surface of the left groove section and the bottom surface of the left groove section is 104°-108°, and the included angle between the right side surface of the left groove section and the bottom surface of the left groove section is 98°-103°.

[0012] A left plug-in hole is provided on the left side of the ingot starter head for the special-shaped blank, and a right plug-in hole is provided on the right side of the ingot starter head for the special-shaped blank, and both the left plug-in hole and the right plug-in hole extend in the left-right direction; the left end of the left plug-in hole is connected with the left side surface of the ingot starter head for the special-shaped blank, the left plug-in hole is connected with the left groove section of the lower clamping groove, and the distance between the bottom surface of the left groove section and the left plug-in hole is greater than the width of the bottom surface of the left groove section; the right end of the right plug-in hole is connected with the right side surface of the ingot starter head for the special-shaped blank, the right plug-in hole is connected with the right groove section of the lower clamping groove, and the distance between the bottom surface of the right groove section and the right plug-in hole is greater than the width of the bottom surface of the right groove section.

[0013] A plurality of left plug-in holes are arranged on the left side of the ingot head for the profiled blank, and the plurality of left plug-in holes are arranged at intervals along the front-rear direction, and the aperture of the left plug-in hole is 10mm-13mm, and the left plug-in hole is located above the lower surface of the middle horizontal plate, a part of the left plug-in hole is located in the left vertical plate, and the other part of the left plug-in hole is located in the middle horizontal plate, and the left plug-in piece is a metal tube, and the length of the left plug-in piece is smaller than the depth of the left plug-in hole, and when the U-shaped head of the opening casting is inserted into the lower clamping groove and the ingot head for the profiled blank moves upward relative to the opening casting, the U-shaped head of the opening casting can break the left plug-in piece, and the ingot head for the profiled blank can be detached from the opening casting.

[0014] The left plug hole and the right plug hole are symmetrical and mirror images of each other, and the left plug connector and the right plug connector are symmetrical and mirror images of each other.

[0015] The beneficial effect of the embodiment of the utility model is that the starter head for the special-shaped billet is provided with a plug hole and a plug-in component, and before the billet is removed from the starter, the plug-in component can prevent the starter head from being separated from the casting, and when the billet is removed from the starter, the starter head can be easily and quickly separated from the casting, thereby safely realizing the online ingot removal device to remove the starter and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0017] Figure 1 It is a front view schematic diagram of the ingot starter head for the special-shaped blank described in the utility model (when the connector is not installed).

[0018] Figure 2 It is a right side schematic diagram of the ingot starter head for the special-shaped blank of the utility model (when the connector is not installed).

[0019] Figure 3 It is a bottom view schematic diagram of the ingot starter head for the special-shaped blank of the utility model (when the connector is not installed).

[0020] Figure 4 is along Figure 1 Schematic cross-sectional view along the AA direction.

[0021] Figure 5 is along Figure 1 Schematic cross-sectional view along the BB direction.

[0022] Figure 6 It is a front view schematic diagram of the ingot starter head for the special-shaped blank (when installing the connector) of the utility model.

[0023] Figure 7 It is a right side schematic diagram of the ingot starter for the special-shaped blank of the utility model in the working state.

[0024] Figure 8 It is a schematic bottom view of the ingot starter for the special-shaped blank of the utility model in the working state.

[0025] Fig. 9 It is a top-down schematic diagram of the open casting.

[0026] Fig.10 It is a right view schematic diagram of the open casting.

[0027] Fig.11 It is a schematic diagram of the main view of the felt board.

[0028] The description of the reference numerals is as follows:

[0029] 1. dummy bar head for profiled bloom; 2. felt board; 3. starting piece;

[0030] 11. left vertical plate; 12. middle horizontal plate; 13. right vertical plate; 14. lower clamping groove; 15. left insertion hole; 16. right insertion hole; 17. left insert; 18. right insert;

[0031] 31. U-shaped head;

[0032] 141. left groove section; 142. middle groove section; 143. right groove section. Detailed implementation manners

[0033] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0034] For the convenience of understanding and description, absolute positional relationships are adopted in the following description of the present invention. Without special instructions, the orientation word "upper" represents Figure 1 the upper side direction in Figure 1 the lower side direction in Figure 1 the left side direction in Figure 1 the right side direction in Figure 1 the front represents the direction perpendicular to Figure 1 the paper surface in and pointing outside the paper surface, and "rear" represents the direction perpendicular to

[0035] such as Figures 1 to 5As shown, a starter head for a profiled blank described in an embodiment of the utility model, the cross section of the starter head 1 for the profiled blank is H-shaped, the starter head 1 for the profiled blank comprises a left vertical plate 11, a middle horizontal plate 12 and a right vertical plate 13 connected in sequence from left to right, the lower surface of the starter head 1 for the profiled blank is provided with a lower clamping groove 14, the lower clamping groove 14 is U-shaped, the opening of the U-shape faces forward, and the front end of the lower clamping groove 14 is connected to the front side of the starter head 1 for the profiled blank; a left plug hole 15 is provided on the left side of the starter head 1 for the profiled blank, a left plug-in component 17 is plugged into the left plug hole 15, and the left plug-in component 1 7 can prevent the opening casting 3 from being separated from the lower clamping groove 14; or, a right plug hole 16 is provided on the right side of the ingot starter 1 for the profiled blank, and a right plug-in component 18 is inserted in the right plug hole 16, and the right plug-in component 18 can prevent the opening casting 3 from being separated from the lower clamping groove 14; or, a left plug hole 15 is provided on the left side of the ingot starter 1 for the profiled blank, and a left plug-in component 17 is inserted in the left plug hole 15, and a right plug hole 16 is provided on the right side of the ingot starter 1 for the profiled blank, and a right plug-in component 18 is inserted in the right plug hole 16, and the left plug-in components 17 and the right plug-in components 18 can prevent the opening casting 3 from being separated from the lower clamping groove 14.

[0036] Before the billet is de-ingoted, the connector (left connector 17 and / or right connector 18) can prevent the de-ingot head 1 for the profiled billet from being separated from the casting 3. When the billet is de-ingoted, the de-ingot head 1 for the profiled billet can be easily and quickly separated from the casting 3 by destroying or removing the connector, thereby safely realizing the de-ingoting of the online de-ingoting device and improving production efficiency.

[0037] like Figures 4 to 5 As shown, the lower clamping groove 14 contains a left groove segment 141, a middle groove segment 142 and a right groove segment 143 which are connected in sequence from left to right. The left groove segment 141 and the right groove segment 143 both extend in the front-to-back direction, and the middle groove segment 142 extends in the left-to-right direction. The rear end of the ingot starter 1 for the profiled blank is the ingot starter rod connecting end, that is, the rear end of the ingot starter 1 for the profiled blank is connected and fixed to the ingot starter rod.

[0038] In this embodiment, the left groove section 141 is located at the connection between the left vertical plate 11 and the middle horizontal plate 12, the middle groove section 142 is located inside the middle horizontal plate 12, and the right groove section 143 is located at the connection between the middle groove section 142 and the right groove section 143. The left groove section 141 and the right groove section 143 are symmetrical on the left and right and are mirror images of each other.

[0039] like Figures 1 to 5As shown, the cross section of the middle groove section 142 is a first trapezoid, the width e of the top side of the first trapezoid is 22mm-26mm (such as 25mm), and the height h of the first trapezoid is 50mm-60mm. The angle g between the front waist of the first trapezoid and the top side of the first trapezoid is 94°-98° (such as 95°), and the angle f between the rear waist of the first trapezoid and the top side of the first trapezoid is 98°-101° (such as 100°).

[0040] In this embodiment, the bottom width d of the left groove section 141 is 22 mm-26 mm (e.g., 25 mm), and the bottom of the left groove section 141 and the bottom of the middle groove section 142 are located in the same horizontal plane. The angle n between the left side surface of the left groove section 141 and the bottom of the left groove section 141 is 104°-108° (e.g., 105°), and the angle m between the right side surface of the left groove section 141 and the bottom of the left groove section 141 is 98°-103° (e.g., 100°).

[0041] like Figures 1 to 5 As shown, preferably, a left plugging hole 15 is provided on the left side of the starter head 1 for the profiled blank, and a right plugging hole 16 is provided on the right side of the starter head 1 for the profiled blank, and both the left plugging hole 15 and the right plugging hole 16 extend in the left-right direction.

[0042] Specifically, the left end of the left plug hole 15 is connected to the left side surface of the ingot starter head 1 for the profiled blank, and the left plug hole 15 is connected to the left groove section 141 of the lower clamping groove 14. The distance between the bottom surface of the left groove section 141 and the left plug hole 15 (along the up and down direction) is greater than the width of the bottom surface of the left groove section 141, and the distance between the bottom surface of the left groove section 141 and the left plug hole 15 is greater than the outer diameter of the U-shaped head 31. For example, the distance between the bottom surface of the left groove section 141 and the left plug hole 15 is 25mm-30mm (such as 27mm ); the right end of the right plug-in hole 16 is connected to the right side surface of the ingot head 1 for the special-shaped blank, and the right plug-in hole 16 is connected to the right groove section 143 of the lower clamping groove 14, and the distance between the bottom surface of the right groove section 143 and the right plug-in hole 16 (along the up and down direction) is greater than the width of the bottom surface of the right groove section 143, and the distance between the bottom surface of the right groove section 143 and the right plug-in hole 16 is greater than the outer diameter of the U-shaped head 31. For example, the distance between the bottom surface of the right groove section 143 and the right plug-in hole 16 is 25mm-30mm (such as 27mm).

[0043] In this embodiment, a plurality of left plug-in holes 15 are arranged on the left side of the ingot head 1 for the special-shaped blank, and the plurality of left plug-in holes 15 are arranged at intervals along the front-to-back direction. The aperture of the left plug-in hole 15 is 10 mm-13 mm. The left plug-in hole 15 is located above the lower surface of the middle horizontal plate 12, a part of the left plug-in hole 15 is located in the left vertical plate 11, and the other part of the left plug-in hole 15 is located in the middle horizontal plate 12.

[0044] like Figures 6 to 8 As shown, for example, two left plug-in holes 15 are arranged on the left side of the ingot head 1 for the special-shaped blank, and the two left plug-in holes 15 are arranged at intervals in the front-to-back direction. The distance b between the center lines of the two left plug-in holes 15 can be 28mm-33mm (such as 30mm), and the distance a between the center line of the left plug-in hole 15 on the rear side and the lower end of the front side surface of the middle groove section 142 is 20mm-24mm (such as 22mm).

[0045] The left connector 17 can be a metal tube (such as a steel tube), and the left connector 17 is plugged into the left plug hole 15 one by one. The length of the left connector 17 is less than the depth of the left plug hole 15. When the U-shaped head 31 of the casting 3 is plugged into the lower clamping groove 14 and the ingot head 1 for the special-shaped blank moves upward relative to the casting 3, the U-shaped head 31 of the casting 3 can break the left connector 17, and the ingot head 1 for the special-shaped blank can be detached from the casting 3.

[0046] The wall thickness of the left connector 17 can be 0.5mm-0.8mm, the outer diameter of the left connector 17 is about 1mm smaller than the aperture of the left plug hole 15, the depth c of the left plug hole 15 is 170mm-185mm (such as 180mm), and the length of the left connector 17 is 10mm-15mm shorter than the depth of the left plug hole 15, which can prevent the connector from leaking out, scratching the crystallizer, and interfering with the fan-shaped segment roller.

[0047] In order to facilitate the upward movement of the starter head 1 for the profiled blank relative to the opening casting 3, the U-shaped head 31 of the opening casting 3 can break the left plug-in connector 17, and a notch can be provided on the left plug-in connector 17, and the notch is located in the left groove section 141. In addition, the left vertical plate 11 and the right vertical plate 13 are symmetrical and mirror images of each other, the left plug-in hole 15 and the right plug-in hole 16 are symmetrical and mirror images of each other, the left plug-in connector 17 and the right plug-in connector 18 are symmetrical and mirror images of each other, and the right plug-in hole 16 is plugged in one-to-one.

[0048] The working process of the ingot starter for the profiled blank is introduced below.

[0049] 1. Send the starter head 1 for the profiled blank and the starter rod into the crystallizer, with the front side of the starter head 1 for the profiled blank facing upwards and the lower side of the starter head 1 for the profiled blank facing the outer arc side of the fan-shaped segment, place the felt plate 2 on the starter head 1 for the profiled blank, and then put the casting 3 on the starter head 1 for the profiled blank (that is, the U-shaped head 31 of the casting 3 is clamped in the lower clamping groove 14), insert the left plug-in component 17 into the left plug-in hole 15, and insert the right plug-in component 18 into the right plug-in hole 16. The left plug-in component 17 and the right plug-in component 18 lock the casting 3, and the left plug-in component 17 and the right plug-in component 18 can prevent the casting 3 from detaching from the starter head 1 for the profiled blank, as shown in FIG. Figures 6 to 11shown.

[0050] 2. Prepare to start production. The profiled blank is pulled out by the ingot starter 1 and the ingot starter rod. When the head of the profiled blank passes through the last straightening machine and reaches the ingot removal position, the ingot removal device rises and lifts up the ingot starter rod. During the upward movement of the profiled blank ingot starter 1 relative to the open casting 3, the U-shaped head 31 of the open casting 3 can break the left connector 17 and the right connector 18, and the profiled blank ingot starter 1 is separated from the open casting 3. The ingot starter rod and the profiled blank ingot starter 1 quickly move backwards to complete the online ingot removal.

[0051] Among them, the specific parameters (including size and performance) of the left connector 17 and the right connector 18 should ensure that when the de-ingoting device lifts up the ingot rod, the U-shaped head 31 of the casting 3 can break the left connector 17 and the right connector 18 during the upward movement of the ingot head 1 for the profiled blank relative to the casting 3. The specific parameters of the left connector 17 and the right connector 18 can be obtained based on a limited number of experiments. In addition, the felt plate 2 and the casting 3 can both adopt existing technology products, and the connection method of the ingot head 1 for the profiled blank, the felt plate 2 and the casting 3 is the same as that in the prior art.

[0052] The above is only a specific embodiment of the utility model, and it cannot be used to limit the scope of the utility model. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the protection scope of the utility model should still fall within the scope of the utility model. In addition, the technical features of the utility model can be freely combined with each other, with technical features and technical solutions, with technical solutions and with embodiments.

Claims

1. A starter head for a profiled blank, characterized in that: The cross section of the starter head (1) for the profiled blank is H-shaped. The starter head (1) for the profiled blank comprises a left vertical plate (11), a middle horizontal plate (12) and a right vertical plate (13) which are connected in sequence from left to right. The lower surface of the starter head (1) for the profiled blank is provided with a lower clamping groove (14). The lower clamping groove (14) is U-shaped. The opening of the U-shape faces forward. The lower clamping groove (14) is connected to the front side of the starter head (1) for the profiled blank. The left side of the starter head (1) for the profiled blank is provided with a left plug hole (15), a left plug piece (17) is plugged into the left plug hole (15), and the left plug piece (17) can prevent the open casting piece (3) from being separated from the lower clamping groove (14); Alternatively, a right plug hole (16) is provided on the right side of the starter head (1) for the profiled blank, a right plug-in piece (18) is plugged into the right plug-in hole (16), and the right plug-in piece (18) can prevent the opening casting piece (3) from being separated from the lower clamping groove (14); Alternatively, a left plug hole (15) is provided on the left side of the starter head (1) for the profiled blank, a left plug-in component (17) is inserted into the left plug hole (15), and a right plug-in component (18) is provided on the right side of the starter head (1) for the profiled blank, a right plug-in component (16) is inserted into the right plug hole (16), and the left plug-in component (17) and the right plug-in component (18) can prevent the opening casting (3) from being separated from the lower clamping groove (14).

2. The starter head for profiled blank according to claim 1, characterized in that: The lower clamping groove (14) comprises a left groove section (141), a middle groove section (142) and a right groove section (143) which are sequentially connected from left to right. The left groove section (141) and the right groove section (143) both extend in the front-back direction, and the middle groove section (142) extends in the left-right direction. The rear end of the starter head (1) for the profiled blank is a starter rod connection end.

3. The starter head for profiled blank according to claim 2, characterized in that: The left groove section (141) is located at the connection between the left vertical plate (11) and the middle horizontal plate (12), the middle groove section (142) is located inside the middle horizontal plate (12), the right groove section (143) is located at the connection between the middle groove section (142) and the right groove section (143), and the left groove section (141) and the right groove section (143) are bilaterally symmetrical and mirror images of each other.

4. The starter head for profiled blank according to claim 2, characterized in that: The cross section of the middle groove section (142) is a first trapezoid, the width of the top edge of the first trapezoid is 22mm-26mm, and the height of the first trapezoid is 50mm-60mm.

5. The starter head for profiled blank according to claim 4, characterized in that: The angle between the front waist of the first trapezoid and the top side of the first trapezoid is 94°-98°, and the angle between the back waist of the first trapezoid and the top side of the first trapezoid is 98°-101°.

6. The starter head for profiled blank according to claim 2, characterized in that: The bottom surface width of the left groove section (141) is 22 mm to 26 mm, and the bottom surface of the left groove section (141) and the bottom surface of the middle groove section (142) are located in the same horizontal plane.

7. The starter head for profiled blank according to claim 6, characterized in that: The included angle between the left side surface of the left groove section (141) and the bottom surface of the left groove section (141) is 104°-108°, and the included angle between the right side surface of the left groove section (141) and the bottom surface of the left groove section (141) is 98°-103°.

8. The starter head for profiled blank according to claim 2, characterized in that: A left plugging hole (15) is provided on the left side of the starter head (1) for the profiled blank, and a right plugging hole (16) is provided on the right side of the starter head (1) for the profiled blank. Both the left plugging hole (15) and the right plugging hole (16) extend in the left-right direction. The left end of the left plug hole (15) is connected to the left side surface of the ingot starter (1) for the profiled blank, the left plug hole (15) is connected to the left groove section (141) of the lower clamping groove (14), and the distance between the bottom surface of the left groove section (141) and the left plug hole (15) is greater than the width of the bottom surface of the left groove section (141); The right end of the right plug hole (16) is connected to the right side surface of the ingot starter (1) for the special-shaped blank, and the right plug hole (16) is connected to the right groove section (143) of the lower clamping groove (14), and the distance between the bottom surface of the right groove section (143) and the right plug hole (16) is greater than the width of the bottom surface of the right groove section (143).

9. The starter head for profiled blank according to claim 8, characterized in that: The left side of the ingot starter (1) for the profiled blank is provided with a plurality of left plug-in holes (15), the plurality of left plug-in holes (15) are arranged at intervals along the front-to-back direction, the diameter of the left plug-in holes (15) is 10 mm-13 mm, the left plug-in holes (15) are located above the lower surface of the middle horizontal plate (12), a part of the left plug-in holes (15) is located in the left vertical plate (11), and another part of the left plug-in holes (15) is located in the middle horizontal plate (12). The connector (17) is a metal tube. The length of the left connector (17) is less than the depth of the left connector hole (15). When the U-shaped head (31) of the cast-in-place piece (3) is plugged into the lower clamping groove (14) and the starter head (1) for the profiled blank moves upward relative to the cast-in-place piece (3), the U-shaped head (31) of the cast-in-place piece (3) can press off the left connector (17), and the starter head (1) for the profiled blank can be separated from the cast-in-place piece (3).

10. The starter head for profiled blank according to claim 8, characterized in that: The left plug hole (15) and the right plug hole (16) are symmetrical and mirror images of each other, and the left plug connector (17) and the right plug connector (18) are symmetrical and mirror images of each other.

Images