Dummy bar bracket and bracket pouring mold

Abstract

The dummy bar bracket comprises a supporting seat and two guide blocks, each guide block comprises a top plate and a plurality of supporting plates, the top plates and the supporting plates are integrally formed in a casting mode, the bottom ends of the supporting plates are connected with the supporting seat, and the bottom ends of the supporting plates are connected with the supporting seat. The multiple supporting plates are arranged at intervals in the width direction of the top plates, the tops of the guiding blocks form guiding faces, and a slag flowing gap is formed between the two top plates. According to the dummy bar bracket provided by the invention, the bracket which is integrally formed by casting is provided, the supporting plate and the top plate are integrally formed by casting, machining and welding by workers are not needed, a welding seam does not need to be polished, and the working intensity is reduced; the bracket is free of welding seams, high in overall strength, long in service life and not prone to deformation, the situation that the supporting plate or the top plate is broken is avoided, and the working life is prolonged. The slag flowing gap facilitates falling of welding slag, and the welding slag is prevented from being accumulated on the guide face to affect movement of the dummy bar.

Description

Technical Field

[0001] The utility model belongs to the technical field of auxiliary equipment of a straightening machine, and in particular relates to a dummy rod bracket and a bracket casting mould. Background Art

[0002] The dummy bar is an important device for continuous steel casting and ironmaking, which consists of a dummy head, a transition piece and a bar body. Before pouring, the dummy head and part of the transition piece enter the crystallizer to form the movable inner bottom of the crystallizer. After the pouring begins, the molten steel solidifies and condenses with the dummy head. The straightening machine pulls the dummy bar to continuously pull the billet out of the crystallizer until the dummy head passes through the back of the straightening machine and is separated from the billet.

[0003] In order to ensure that the rod of the dummy rod moves in the specified direction during operation, a dummy rod bracket is installed at the specified position of the straightening machine, and the rod moves along the top surface of the bracket. However, the conventional bracket is welded by multiple steel plates, and the thickness of the steel plates is thin. After long-term use, the bracket wears out, causing the guide surface of the bracket to tilt, causing the straightening machine to shift, and the dummy rod cannot move along the preset path, causing the straightening angle to deviate, affecting the straightening effect; in addition, the bracket is spliced ​​by multiple steel plates, and affected by the welding process and welding level, bubbles or inclusions are easily generated at the weld, the overall quality of the bracket is low, and it is easy to break at the weld during use, and the service life is short. The weld needs to be polished after welding. Frequent replacement or maintenance of steel plates affects work efficiency and increases the labor intensity of the staff. Utility Model Content

[0004] The utility model provides a dummy rod bracket, aiming to solve the technical problems in the prior art that the dummy rod bracket is easy to wear, affecting the straightening effect, and the bracket formed by splicing steel plates has a short service life and high maintenance cost.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] In a first aspect, a dummy bar bracket is provided, comprising:

[0007] It includes a support seat and two guide blocks, the guide block includes an integrally cast top plate and multiple support plates, the bottom ends of the multiple support plates are connected to the support seat, the multiple support plates are arranged at intervals along the width direction of the top plate, the top of the guide block forms a guide surface, and a slag flow gap is formed between the two top plates.

[0008] In a possible implementation, the top of the support plate and the bottom of the top plate are conformably fitted.

[0009] In a possible implementation, the top plate includes a first guide plate, a second guide plate, and a third guide plate connected sequentially along its length direction, the first guide plate gradually tilts from bottom to top in a direction approaching the second guide plate, the plate surface of the second guide plate is parallel to the horizontal direction, and the third guide plate gradually tilts from top to bottom in the opposite direction away from the second guide plate.

[0010] In a possible implementation, a wear-resistant layer is provided on the upper surface of the top plate.

[0011] In a possible implementation, a fixing member is further provided between the support plate and the top plate, and the fixing member includes a first plate integrally formed with the support plate and a second plate integrally formed with the top plate.

[0012] In a possible implementation, a mounting groove is provided at the bottom of the support plate, and a plurality of the mounting grooves are respectively plugged and matched with the support base.

[0013] In a possible implementation, both ends of the support seat are respectively provided with mounting holes penetrating in the up-down direction.

[0014] In a possible implementation, two ends of the top plate are respectively provided with an integrally formed baffle plate, a plate surface of the baffle plate is parallel to the vertical direction, and a bottom of the baffle plate is at the same height as a bottom of the support plate.

[0015] In a possible implementation, the support seat includes two mounting plates, the length direction of the mounting plates is parallel to the thickness direction of the support plate, and the two mounting plates are arranged at intervals along the length direction of the top plate.

[0016] Compared with the prior art, the ingot rod bracket provided by the utility model provides an integrally cast bracket, in which the support plate and the top plate are integrally cast, and the staff does not need to process and weld, nor does it need to grind the weld, which reduces the work intensity, is easy to manufacture, and reduces the production difficulty; the bracket of the present application has no weld, has high overall strength, long service life, is not easy to deform, and will not cause the support plate or the top plate to break, thereby extending the service life. The bracket has no welding requirements, and the wall thickness can be controlled during casting. The wall thickness of the top plate is greater than that of the conventional steel plate, and the wear effect is small, which increases the service life; the setting of the slag flow gap facilitates the falling of welding slag, avoids the accumulation of welding slag on the guide surface to affect the movement of the ingot rod, improves the movement stability of the ingot rod, and facilitates the staff to remove the residue.

[0017] In a second aspect, a bracket casting mold is provided for manufacturing a guide rod bracket as described in any one of the possible implementation methods mentioned above, comprising a lower mold base and an upper mold base, the lower mold base is provided with a receiving groove, the upper mold base is provided with a plurality of plug-in plates corresponding to the receiving groove, the plurality of plug-in plates are respectively inserted into the receiving grooves, a first casting cavity of the support plate is formed between adjacent plug-in plates, a second casting cavity of the top plate is formed between the plug-in plates and the bottom of the receiving groove, and the first casting cavity and the second casting cavity are connected.

[0018] Compared with the prior art, the bracket casting mold provided by the utility model provides an integrally cast bracket, wherein the support plate and the top plate are integrally cast, and there is no need for the staff to process and weld, nor is there any need to grind the weld, which reduces the work intensity, reduces the manufacturing difficulty, and reduces the production difficulty; the bracket of the present application has no weld, has high overall strength, long service life, is not easy to deform, and will not cause the support plate or the top plate to break, thereby extending the service life. The bracket has no welding requirements, and the wall thickness can be controlled during casting. The wall thickness of the top plate is greater than that of the conventional steel plate, and the wear effect is small, which increases the service life; the setting of the slag flow gap facilitates the falling of welding slag, avoids the accumulation of welding slag on the guide surface to affect the movement of the ingot rod, improves the movement stability of the ingot rod, and facilitates the staff to remove the residue. The lower mold base and the upper mold base are plugged together to form the first casting cavity and the second casting cavity, which can enable the support plate and the top plate to be integrally cast, thereby improving the structural strength of the guide block. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 A schematic structural diagram of a dummy bar bracket provided in Embodiment 1 of the present utility model;

[0021] Figure 2 A top view of a dummy bar bracket provided in Embodiment 1 of the utility model;

[0022] Figure 3 A bottom view of the dummy bar bracket provided in the first embodiment of the utility model;

[0023] Figure 4 A side cross-sectional view of the guide block used in the first embodiment of the present utility model;

[0024] Figure 5 This is a front cross-sectional view of the guide block used in the first embodiment of the utility model;

[0025] Figure 6 A schematic diagram of the assembly of the fixing member and the top plate provided in the second embodiment of the present utility model;

[0026] Figure 7 This is a schematic structural diagram of a casting mold provided in Embodiment 3 of the present utility model.

[0027] Description of reference numerals:

[0028] 1. Support seat; 11. Mounting plate; 111. Mounting hole;

[0029] 2. Guide block; 21. Top plate; 211. First guide plate; 212. Second guide plate; 213. Third guide plate; 22. Support plate; 221. Mounting groove; 23. Wear-resistant layer; 24. Fixing member; 251. First plate; 252. Second plate; 26. Baffle;

[0030] 3. Slag flow gap;

[0031] 4. Casting mold; 41. Lower mold base; 411. Receiving groove; 42. Upper mold base; 421. Plug-in board. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] It should be noted that the terms "length", "width", "height", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 utility model.

[0034] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. 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] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0036] Please also read Figures 1 to 7 The dummy bar bracket provided by the utility model is now described. It includes a support seat 1 and two guide blocks 2. The guide block 2 includes an integrally cast top plate 21 and a plurality of support plates 22. The plurality of support plates 22 are arranged at intervals along the width direction of the top plate 21. The bottom ends of the plurality of support plates 22 are connected to the support seat 1. The top of the guide block 2 forms a guide surface. A slag flow gap 3 is formed between the two top plates 21.

[0037] It should be noted that the dummy bar moves along the guide surface.

[0038] It should be noted that the top plate 21 and the support plate 22 of the guide block 2 are integrally cast and formed, and there is no need to consider the effect of the thickness of the steel plate on the welding difficulty during welding.

[0039] It should be noted that there are gaps between the support plates 22, which can reduce manufacturing costs and weight on the one hand, and can dissipate heat to prevent the dummy bar bracket from being overheated on the other hand.

[0040] In specific implementation, multiple support plates 22 are distributed at intervals, which can spread the pressure of the top plate 21 and improve the support effect on the top plate 21. Each support plate 22 is subjected to the same force, and there will be no force concentration, thereby increasing the service life.

[0041] Compared with the prior art, the ingot rod bracket provided in this embodiment provides an integrally cast bracket, in which the support plate 22 and the top plate 21 are integrally cast, and the staff does not need to process and weld, nor does the staff need to grind the weld, which reduces the work intensity, is easy to manufacture, and reduces the production difficulty; the bracket of this application has no weld, has high overall strength, long service life, is not easy to deform, and will not break the support plate 22 or the top plate 21, thereby extending the service life. This bracket has no welding requirements, and the wall thickness can be controlled during casting. The wall thickness of the top plate 21 is greater than that of a conventional steel plate, and the wear effect is small, which increases the service life; the setting of the slag flow gap 3 facilitates the falling of welding slag, avoids the accumulation of welding slag on the guide surface to affect the movement of the ingot rod, improves the movement stability of the ingot rod, and facilitates the staff to remove the residue.

[0042] In some embodiments, see Figure 4 and Figure 5The top of the support plate 22 is in conformity with the bottom of the top plate 21. The bottom of the top plate 21 is in conformity with the bottom of the support plate 22, so that the support plate 22 stably supports the top plate 21 in the length direction of the top plate 21, thereby improving the overall structural strength.

[0043] In some embodiments, see Figure 1 and Figure 2 The top plate 21 includes a first guide plate 211, a second guide plate 212 and a third guide plate 213 which are connected in sequence along its length direction. The first guide plate 211 gradually tilts from bottom to top in a direction close to the second guide plate 212. The plate surface of the second guide plate 212 is parallel to the horizontal direction. The third guide plate 213 gradually tilts from top to bottom in a direction away from the second guide plate 212. The first guide plate 211, the second guide plate 212 and the third guide plate 213 form a trapezoidal structure. The dummy bar passes through the first guide plate 211, the second guide plate 212 and the third guide plate 213 in sequence, and enters the dummy bar bracket in the next straightening machine along the second guide plate 212. The dummy bar is guided to move by setting a plurality of dummy bar brackets, so that the cast billet can be guided to be bent.

[0044] During specific implementation, the first guide plate 211 and the third guide plate 213 also play the role of dropping materials. A part of the residue falls from the slag flow gap, and the other part falls along the first guide plate 211 and the third guide plate 213 respectively, so as to prevent the residue from staying on the second guide plate 212 and affecting the moving direction of the dummy rod.

[0045] In a specific implementation, the included angle between the first guide plate 211 and the horizontal plane is 28°, and the included angle between the third guide plate 213 and the horizontal plane is 30°.

[0046] In some embodiments, see Figure 6 The upper surface of the top plate 21 is provided with a wear-resistant layer 23. The provision of the wear-resistant layer 23 can delay the wear of the top plate 21, extend the overall service life of the bracket, further increase the service life, reduce the number of replacements, and save costs.

[0047] Optionally, the wear-resistant layer 23 is formed by spraying metal particles, and the formed wear-resistant layer 23 has the characteristics of high strength and corrosion resistance. It can also be made of polymer composite materials.

[0048] In some embodiments, see Figure 6 A fixing member 24 is further provided between the support plate 22 and the top plate 21, and the fixing member 24 includes a first plate 251 integrally formed with the support plate 22 and a second plate 252 integrally formed with the top plate 21. The first plate 251 and the second plate 252 can improve the connection strength between the support plate 22 and the top plate 21, increase the contact area between the top plate 21 and the support plate 22, further expand the top force bearing area of ​​the support plate 22, and improve the support effect of the support plate 22.

[0049] In some embodiments, see Figure 6 The bottom of the support plate 22 is provided with a mounting groove 221, and the plurality of mounting grooves 221 are respectively plugged and matched with the support seat 1. The setting of the mounting groove 221 can increase the contact area between the support plate 22 and the support seat 1 and improve the connection strength. At the same time, each support plate is provided with a mounting groove 221, and the plurality of mounting grooves 221 are arranged in sequence along the same direction, which can guide the connection angle and installation direction of the support seat 1. The installation effect and the support effect of the support seat 1 are improved.

[0050] In specific implementation, the support seat 1 can also be integrally formed with the two guide blocks 2 .

[0051] In some embodiments, see Figure 1 and Figure 2 The two ends of the support seat 1 are respectively provided with mounting holes 111 penetrating in the up-down direction. The setting of the mounting holes 111 allows the support seat 1 to be fixed on the straightening machine through fasteners, so that the support seat 1 and the straightening machine are relatively fixed, and the stability of the dummy bar bracket during use is improved.

[0052] In some embodiments, see Figure 5 The two ends of the top plate 21 are respectively provided with an integrally formed baffle plate 26, the plate surface of the baffle plate 26 is parallel to the vertical direction, and the bottom of the baffle plate 26 is at the same height as the bottom of the support plate 22. The baffle plate 26 can shield the support plate 22, prevent the slag from entering the gap between the support plates 22, and reduce the cleaning difficulty and cleaning intensity.

[0053] During implementation, the two baffles 22 have the same size.

[0054] In a specific implementation, the bottom end of the baffle 26 corresponding to the first guide plate 211 can be at the same height as the bottom of the support plate 22 . The first guide plate 211 serves as a feed end, and the baffle 26 can block slag to prevent the slag from entering between the support plates 22 .

[0055] In some embodiments, see Figure 1 and Figure 2 The support seat 1 includes two mounting plates 11, the length direction of the mounting plates 11 is parallel to the thickness direction of the support plate 22, and the two mounting plates 11 are arranged at intervals along the length direction of the top plate 21. The two mounting plates 11 support the support plate 22 from both ends, thereby improving the support stability. The two mounting plates 11 have four mounting holes 111, which further improve the connection point between the support seat 1 and the straightening machine, improve the connection strength, and thus improve the working stability of the dummy bar bracket.

[0056] Based on the same inventive concept, the present application also provides a bracket casting mold for manufacturing the ingot rod bracket of any one of the above-mentioned embodiments, the bracket casting mold includes a lower mold base 41 and an upper mold base 42, the lower mold base 41 is provided with a receiving groove 411, the upper mold base 42 is provided with a plurality of plug-in boards 421 corresponding to the receiving groove 411, the plurality of plug-in boards 421 are respectively inserted into the receiving grooves 411, a first casting cavity of the support plate 22 is formed between adjacent plug-in boards 421, a second casting cavity of the top plate 21 is formed between the plug-in boards 421 and the bottom of the receiving groove 411, and the first casting cavity is connected to the second casting cavity.

[0057] Compared with the prior art, the bracket casting mold provided in this embodiment provides a bracket that is integrally cast and formed. The support plate 22 and the top plate 21 are integrally cast and formed, and the staff does not need to process and weld, nor does it need to grind the weld, which reduces the work intensity, is easy to manufacture, and reduces the production difficulty; the bracket of this application has no weld, has high overall strength, long service life, is not easy to deform, and will not break the support plate 22 or the top plate 21, thereby extending the service life. This bracket has no welding requirements, and the wall thickness can be controlled during casting and forming. The wall thickness of the top plate 21 is greater than that of a conventional steel plate, and the wear effect is small, which increases the service life; the setting of the slag flow gap 3 facilitates the falling of welding slag, avoids the accumulation of welding slag on the guide surface to affect the movement of the ingot rod, improves the movement stability of the ingot rod, and facilitates the staff to remove the residue. The lower mold base 41 and the upper mold base 42 are plugged and matched, and the first casting cavity and the second casting cavity formed can enable the support plate 22 and the top plate 21 to be integrally cast and formed, thereby improving the structural strength of the guide block 2. The guide block 2 can be cast in one piece, which saves manufacturing time compared to the operation of welding steel plates. The formed bracket has high overall structural strength, no welds, and no problems such as tilting of the support plates 22 or unequal spacing between the support plates 22. The casting quality is high, the casting thickness is large, and the bracket has a long service life.

[0058] Specifically, a pouring gate may be provided at the top of the upper mold 42 , and the pouring gate is connected to the first pouring cavity.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dummy bar bracket, characterized in that: It includes a support seat and two guide blocks, the guide block includes an integrally cast top plate and multiple support plates, the bottom ends of the multiple support plates are connected to the support seat, the multiple support plates are arranged at intervals along the width direction of the top plate, the top of the guide block forms a guide surface, and a slag flow gap is formed between the two top plates.

2. The dummy bar bracket according to claim 1, characterized in that: The top of the support plate and the bottom of the top plate are conformably fitted.

3. The dummy bar bracket according to claim 1, characterized in that: The top plate includes a first guide plate, a second guide plate and a third guide plate connected in sequence along its length direction, the first guide plate gradually tilts from bottom to top towards the direction approaching the second guide plate, the plate surface of the second guide plate is parallel to the horizontal direction, and the third guide plate gradually tilts from top to bottom towards the opposite direction away from the second guide plate.

4. The dummy bar bracket according to claim 1, characterized in that: The upper surface of the top plate is provided with a wear-resistant layer.

5. The dummy bar bracket according to claim 1, characterized in that: A fixing member is further provided between the support plate and the top plate, and the fixing member includes a first plate integrally formed with the support plate and a second plate integrally formed with the top plate.

6. The dummy bar bracket according to claim 1, characterized in that: The bottom of the support plate is provided with a mounting groove, and a plurality of the mounting grooves are respectively plugged and matched with the support seat.

7. The dummy bar bracket according to claim 1, characterized in that: Both ends of the support seat are respectively provided with mounting holes penetrating in the up-down direction.

8. The dummy bar bracket according to claim 1, characterized in that: An integrally formed baffle is respectively provided at both ends of the top plate, the plate surface of the baffle is parallel to the vertical direction, and the bottom of the baffle is at the same height as the bottom of the support plate.

9. The dummy bar bracket according to claim 1, characterized in that: The support seat comprises two mounting plates, the length direction of the mounting plates is parallel to the thickness direction of the support plate, and the two mounting plates are arranged at intervals along the length direction of the top plate.

10. A bracket casting mold for manufacturing a dummy bar bracket according to any one of claims 1 to 9, characterized in that: It includes a lower mold base and an upper mold base, the lower mold base is provided with a receiving groove, the upper mold base is provided with a plurality of plug-in boards corresponding to the receiving groove, the plurality of plug-in boards are respectively inserted into the receiving grooves, a first casting cavity of the support plate is formed between adjacent plug-in boards, a second casting cavity of the top plate is formed between the plug-in boards and the bottom of the receiving groove, and the first casting cavity is connected to the second casting cavity.

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