External chill for casting small angle steel straightening roll

Abstract

The utility model provides an external chill for casting a small angle steel straightening roll, which belongs to the technical field of casting, and comprises a plurality of chill groups which are sequentially connected along the vertical direction, each chill group is of an annular column structure, the number of the chill groups is odd, and the number of the chill groups is larger than that of the annular column structure. The outer circumferential faces and the inner circumferential faces of the multiple chilling block sets are flush, the inner circumferential face of the chilling block set located in the middle is detachably connected with a modeling part, and the modeling part protrudes out of the inner circumferential faces of the chilling block sets. Each chiller group comprises at least three chiller blocks, the three chiller blocks define the annular column structure, the modeling part comprises a plurality of modeling blocks, the multiple modeling blocks correspond to the multiple chiller blocks in a one-to-one mode, the modeling blocks are detachably connected with the chiller blocks, and every two adjacent chiller blocks are detachably connected. According to the external chill for casting the small angle steel straightening roll, the use frequency of the external chill is prolonged, and the casting cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of casting, and in particular relates to an external chiller for casting a small angle steel straightening roller. Background Art

[0002] In the process of casting small-angle steel straightening rollers, a chill is sleeved on the outer circumference of the straightening roller blank, which can make the straightening roller blank cool down quickly. Then, qualified castings can be obtained after the chill is removed. The chills used are all formed by splitting a whole circle in half and connecting them with bolts in the middle. In the actual production process, the split chill is deformed by the alternating action of high-temperature molten iron, causing the U-shaped mouth to become a C-shaped mouth, resulting in reverse draft, making it difficult to separate the blank from the chill, or even directly damaging it, affecting the service life of the chill. In addition, the existing chill cannot adapt to the casting process of straightening rollers with different axial lengths at the same time. Utility Model Content

[0003] The embodiment of the utility model provides an external chiller for casting a small-angle steel straightening roller, aiming to solve the technical problem that the existing split-type chiller is easily deformed under the alternating action of high-temperature molten iron, resulting in a reverse draft phenomenon, which makes it difficult to separate the blank from the chiller, or even directly damages the chiller, thus affecting the service life of the chiller; the existing chiller cannot adapt to the casting process of straightening rollers with different axial lengths at the same time.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide an external chiller for a cast small angle steel straightening roller, comprising a plurality of chiller groups connected in sequence along the up-down direction, the chiller groups being circular column structures, the number of the chiller groups being odd, and the outer circumferences and inner circumferences of the plurality of chiller groups being flush, the inner circumference of the middle chiller group being detachably connected with a molding part, the molding part protruding from the inner circumference of the chiller group;

[0005] Each of the cold iron groups includes at least three cold iron blocks, and the three cold iron blocks enclose the circular column structure. The shaping part includes multiple shaping blocks, and the multiple shaping blocks correspond one-to-one to the multiple cold iron blocks. The shaping blocks are detachably connected to the cold iron blocks, and two adjacent cold iron blocks are detachably connected.

[0006] In a possible implementation, the cold iron group also includes a sealing plate, and the side of the sealing plate facing the axis of the cold iron group is flush with the inner circumference of the cold iron group, and the inner circumference of each cold iron block is provided with a groove, and the sealing plate and the molding block are selectively assembled in the groove, and the upper and lower sides of the molding block are provided with connecting plates, and the connecting plates are placed in the groove and clamped with the groove, and the side of the connecting plate facing the molding block is flush with the inner circumference of the cold iron block.

[0007] In a possible implementation, the groove and the connecting plate are both provided with corresponding through holes, and the molding block is further provided with a plug-in connector, and the end surface of the plug-in connector is flush with the inner circumference of the cold iron block.

[0008] In one possible implementation, the connector includes an insert rod and a limit plate arranged at the end of the insert rod, and a limit hole is also provided on the connecting plate. The limit hole is coaxial and connected to the through hole on the connecting plate, and the limit plate is snap-fitted with the limit hole. The side of the limit plate facing away from the connector is flush with the inner circumferential surface of the cold iron block.

[0009] In a possible implementation, flange plates are provided on the top periphery and the bottom periphery of the chiller group, and threaded connectors are provided on the flange plates. The threaded connectors are used to connect adjacent chiller groups.

[0010] In a possible implementation, the method further includes:

[0011] A plurality of connecting rods are evenly arranged around the axis of the chiller group, and each of the connecting rods is connected to the plurality of chiller groups.

[0012] In a possible implementation, a top of the chiller group located at the top and a bottom of the chiller group located at the bottom are both provided with protruding limit blocks.

[0013] In a possible implementation, an ear plate is provided on the outer periphery of the chiller block, and a threaded connector is provided on the ear plate. The threaded connector is used to connect adjacent chillers.

[0014] In a possible implementation, the cold iron group further includes a connecting sleeve wound around the outer circumference of the plurality of cold iron blocks, and the connecting sleeve includes two semicircular iron sheets and a threaded connector connected between the two iron sheets.

[0015] In a possible implementation, the outer periphery of the cold iron block is recessed to form a clamping groove for accommodating the connecting sleeve.

[0016] Compared with the prior art, the embodiment of the present application first selects the specifications of the chill block and the number of chill groups according to the axial length and outer diameter of the straightening roller to be cast, then installs the bottom plate at the bottom of the multiple chill groups and the riser at the top, and after the casting is completed, first remove the connection between the multiple chill groups, and then remove the chill blocks layer by layer from top to bottom to complete the casting of the straightening roller. The utility model uses an external chiller for casting a small-angle steel straightening roller, sets multiple chill groups for splicing, and installs a molding part inside the middle chill group, which can adapt to the concave part in the middle of the straightening roller, so that it can be suitable for the casting of straightening rollers with various axial lengths; each chill group includes at least three chill blocks, which will produce different degrees of deformation under high temperature, but will not form an inverted draft mold, which is convenient for demolding the straightening roller after casting, and will not cause mechanical damage to the use surface of the chill block, thereby extending the number of times the external chill is used and reducing the casting cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the top view of the structure of an external chiller for a cast small angle steel straightening roller provided in the first embodiment of the utility model;

[0018] Figure 2 For along Figure 1 Schematic diagram of the cross-sectional structure along the AA line;

[0019] Figure 3 for Figure 2 The enlarged structural diagram of the middle B part;

[0020] Figure 4 A schematic diagram of the top view of the structure of an external chiller for a cast small angle steel straightening roller provided in the second embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the main structure of the external chiller for the cast small-angle steel straightening roller provided in Example 2 of the utility model.

[0022] Description of reference numerals:

[0023] 10-cold iron group; 11-cold iron block; 12-molding part; 121-molding block; 122-connecting plate; 13-sealing plate; 14-limiting block; 15-ear plate; 16-connecting sleeve; 17-clamping groove;

[0024] 20-connector; 21-insertion rod; 22-limiting plate;

[0025] 30-flange plate;

[0026] 40-threaded connector;

[0027] 50-Connecting rod. DETAILED DESCRIPTION

[0028] 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.

[0029] Please also read Figures 1 to 5 , the external chiller for the cast small angle steel straightening roller provided by the utility model is now described. The external chiller for the cast small angle steel straightening roller comprises a plurality of chiller groups 10 connected in sequence in the up-down direction, the chiller groups 10 are circular column structures, the number of the chiller groups 10 is odd, and the outer circumference and inner circumference of the plurality of chiller groups 10 are flush, the inner circumference of the middle chiller group 10 is detachably connected with a shaping portion 12, and the shaping portion 12 protrudes from the inner circumference of the chiller group 10; each chiller group 10 comprises at least three chiller blocks 11, and the three chiller blocks 11 are enclosed to form a circular column structure, and the shaping portion 12 comprises a plurality of shaping blocks 121, and the plurality of shaping blocks 121 correspond to the plurality of chiller blocks 11 one by one, and the shaping blocks 121 are detachably connected to the chiller blocks 11, and the adjacent two chiller blocks 11 are detachably connected.

[0030] Compared with the prior art, the external chiller for casting a small angle steel straightening roller provided in this embodiment first selects the specifications of the chiller block 11 and the number of chiller groups 10 according to the axial length and outer diameter of the straightening roller to be cast, and then installs a bottom plate at the bottom of the multiple chiller groups 10 and a riser at the top. After the casting is completed, the connection between the multiple chiller groups 10 is first removed, and then the chiller blocks 11 are removed layer by layer from top to bottom to complete the casting of the straightening roller. The utility model provides an external chiller for casting a small angle steel straightening roller, and multiple chiller groups 10 are arranged for splicing, and a molding part 12 is installed inside the middle chiller group 10, which can be adapted to the concave part in the middle of the straightening roller, so that it can be applied to the casting of straightening rollers with various axial lengths; each chiller group 10 includes at least three chiller blocks 11, and the chiller blocks 11 will produce different degrees of deformation under high temperature, but will not form an inverted draft mold, which is convenient for demolding the straightening roller after casting, and will not cause mechanical damage to the use surface of the chiller block 11, thereby extending the number of times the external chiller is used and reducing the casting cost.

[0031] In some embodiments, a specific installation method of the above-mentioned shape part 12 can be as follows: Figure 2 See the structure shown. Figure 2The cold iron group 10 also includes a sealing plate 13, and the side of the sealing plate 13 facing the axis of the cold iron group 10 is flush with the inner circumference of the cold iron group 10. The inner circumference of each cold iron block 11 is provided with a groove, and the sealing plate 13 and the molding block 121 are selectively assembled in the groove. The upper and lower sides of the molding block 121 are provided with connecting plates 122, which are placed in the groove and clamped with the groove. The side of the connecting plate 122 facing the molding block 121 is flush with the inner circumference of the cold iron block 11. A groove is arranged on the cold iron block 11 of each cold iron group 10, that is, the shaping part 12 can be installed in each cold iron group 10, that is, each cold iron group 10 can be installed in the middle position, and the cold iron groups 10 located on the upper and lower sides are equipped with sealing plates 13 for easy installation; after the sealing plates 13 and the shaping part 12 are installed, the sealing plates 13 are flush with the inner circumference of the cold iron block 11, and the connecting plates 122 are also flush with the inner circumference of the cold iron block 11, thereby ensuring the flatness of the outer circumference of the cast straightening roller and avoiding secondary processing.

[0032] It is easy to understand that after the sealing plate 13 or the shaping block 121 is installed, it fits with the side wall of the groove, so as to ensure that no mark of the groove appears on the outer surface of the straightening roller.

[0033] Specifically, corresponding through holes are provided on the groove and the connecting plate 122, and a plug connector 20 is also provided on the shaping block 121, and the end face of the plug connector 20 is flush with the inner circumference of the cold iron block 11. After the shaping block 121 and the connecting plate 122 are placed in the groove, they are further connected by the plug connector 20, which improves the connection stability of the shaping block 121, and the plug connector 20 is also flush with the inner circumference of the cold iron block 11, and will not leave marks on the outer surface of the straightening roller.

[0034] In some embodiments, a specific implementation of the above-mentioned plug connector 20 can be as follows: Figure 3 See the structure shown. Figure 3 The connector 20 includes an insert rod 21 and a limit plate 22 disposed at the end of the insert rod 21. A limit hole is also disposed on the connecting plate 122. The limit hole is coaxial with and connected to the through hole on the connecting plate 122. The limit plate 22 is engaged with the limit hole. The side of the limit plate 22 facing away from the connector 20 is flush with the inner circumference of the cold iron block 11. By providing the limit plate 22, when the limit plate 22 is placed in the limit hole and cannot move, the connector 20 is installed. After the connector 20 is installed, the side of the fiber plate can automatically ensure that the side of the fiber plate is flush with the inner circumference of the cold iron block 11, which is convenient for installation.

[0035] As a modified implementation, the plug-in component 20 may also be directly made of a cylindrical rod. However, it is difficult to determine whether the cylindrical rod is flush with the inner circumference of the cold iron block 11 during installation, which makes installation inconvenient.

[0036] In some embodiments, a specific connection method of the above-mentioned cold iron group 10 can be as follows: Figure 1 to Figure 2 See the structure shown. Figure 1 to Figure 2 The top and bottom peripheries of the chiller group 10 are both provided with flange plates 30, and the flange plates 30 are provided with threaded connectors 40, which are used to connect adjacent chiller groups 10. After the flange plates 30 are butted, the threaded connectors 40, the threaded connectors 40, the bolts and nuts are installed in the corresponding holes of the flange plates 30, and the nuts are tightened after the bolts penetrate the holes to complete the connection of the adjacent chiller groups 10.

[0037] As a variant implementation, see Figures 4 to 5 The external chiller for casting small angle steel straightening roller also includes a plurality of connecting rods 50, which are evenly arranged around the axis of the chiller group 10, and each connecting rod 50 is connected to a plurality of chiller groups 10. The connecting rod 50 is parallel to the axial direction of the chiller group 10, and the connecting rod 50 fits the outer periphery of the plurality of chiller groups 10. The outer periphery of each chiller group 10 is provided with an internal threaded hole, and the connecting rod 50 is provided with a hole position corresponding to the internal threaded hole on the outer periphery of all chiller groups 10. By screwing a bolt into the hole position, the connection of the plurality of chiller groups 10 is completed. This structure can realize the installation of a plurality of chiller groups 10 at the same time, and the efficiency is high.

[0038] In some embodiments, an improved implementation of the above-mentioned cold iron group 10 can be adopted as follows Figure 1 to Figure 2 , Figures 4 to 5 See the structure shown. Figure 1 to Figure 2 , Figures 4 to 5 The top of the chiller group 10 at the top and the bottom of the chiller group 10 at the bottom are both provided with protruding stop blocks 14. Since a bottom plate needs to be installed at the bottom of the chiller group 10 and a riser needs to be installed at the top during casting, the stop blocks 14 can be provided to achieve quick installation of the bottom plate and the riser, thereby improving casting efficiency.

[0039] In some embodiments, a specific connection method of the above-mentioned cold iron block 11 can be as follows: Figures 4 to 5 See the structure shown. Figures 4 to 5 The outer periphery of the cold iron block 11 is provided with an ear plate 15, and the ear plate 15 is provided with a threaded connector 40, which is used to connect adjacent cold iron blocks 11. The threaded connector 40 is a bolt and a nut, and the bolt passes through the ear plate 15, and the nut is tightened to complete the assembly of adjacent cold iron blocks 11, which is simple to operate and convenient to install.

[0040] As a variant embodiment of the connection of the cold iron block 11, see Figure 1 to Figure 2The chiller group 10 further includes a connecting sleeve 16 wound around the outer periphery of the plurality of chillers 11, the connecting sleeve 16 includes two semicircular iron sheets, and a threaded connector 40 connected between the two iron sheets. When there are three chillers 11, if the ear plate 15 is used for connection, every two chillers 11 need to be installed in sequence, and the connecting sleeve 16 only needs to be installed twice to complete the assembly of the plurality of chillers 11, no matter how many chillers 11 there are, thus saving assembly time and ensuring casting efficiency.

[0041] Specifically, the outer periphery of the cold iron block 11 is recessed to form a clamping groove 17 for accommodating the connecting sleeve 16. The clamping groove 17 is provided to prevent the connecting sleeve 16 from moving up and down during use, thereby ensuring the connection firmness of the multiple cold iron blocks 11.

[0042] 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. An external chiller for casting small angle steel straightening roller, characterized in that: It comprises a plurality of chiller groups connected in sequence along the up-down direction, the chiller groups are circular column structures, the number of the chiller groups is odd, and the outer circumferences and inner circumferences of the plurality of chiller groups are flush, and the inner circumference of the middle chiller group is detachably connected with a molding part, and the molding part protrudes from the inner circumference of the chiller group; Each of the cold iron groups includes at least three cold iron blocks, and the three cold iron blocks enclose the circular column structure. The shaping part includes multiple shaping blocks, and the multiple shaping blocks correspond one-to-one to the multiple cold iron blocks. The shaping blocks are detachably connected to the cold iron blocks, and two adjacent cold iron blocks are detachably connected.

2. The external chiller for cast small angle steel straightening roll according to claim 1, characterized in that: The cold iron group also includes a sealing plate, and the side of the sealing plate facing the axis of the cold iron group is flush with the inner circumference of the cold iron group. The inner circumference of each cold iron block is provided with a groove, and the sealing plate and the molding block are selectively assembled in the groove. The upper and lower sides of the molding block are provided with connecting plates, and the connecting plates are placed in the groove and clamped with the groove. The side of the connecting plate facing the molding block is flush with the inner circumference of the cold iron block.

3. The external chiller for cast small angle steel straightening roll according to claim 2, characterized in that: The groove and the connecting plate are both provided with corresponding through holes, and the shaping block is also provided with a plug-in connector, and the end surface of the plug-in connector is flush with the inner circumference of the cold iron block.

4. The external chiller for cast small angle steel straightening roller according to claim 3, characterized in that: The connector includes an insertion rod and a limit plate arranged at the end of the insertion rod. The connecting plate is also provided with a limit hole. The limit hole is coaxial and connected with the through hole on the connecting plate. The limit plate is snap-fitted with the limit hole. The side of the limit plate facing away from the connector is flush with the inner circumferential surface of the cold iron block.

5. The external chiller for cast small angle steel straightening roll according to claim 1, characterized in that: Flange plates are provided on the top periphery and the bottom periphery of the chiller group. Threaded connectors are provided on the flange plates. The threaded connectors are used to connect adjacent chiller groups.

6. The external chiller for cast small angle steel straightening roller according to claim 1, characterized in that: Also includes: A plurality of connecting rods are evenly arranged around the axis of the chiller group, and each of the connecting rods is connected to the plurality of chiller groups.

7. The external chiller for cast small angle steel straightening roll according to claim 1, characterized in that: The top of the cold iron group located at the top and the bottom of the cold iron group located at the bottom are both provided with protruding limit blocks.

8. The external chiller for cast small angle steel straightening roller according to claim 1, characterized in that: The outer periphery of the cold iron block is provided with an ear plate, and the ear plate is provided with a threaded connector, and the threaded connector is used to connect the adjacent cold iron blocks.

9. The external chiller for cast small angle steel straightening roller according to claim 1, characterized in that: The cold iron group also includes a connecting sleeve wound around the outer periphery of the plurality of cold iron blocks, and the connecting sleeve includes two semicircular iron sheets and a threaded connector connected between the two iron sheets.

10. The external chiller for cast small angle steel straightening roller according to claim 9, characterized in that: The outer periphery of the cold iron block is recessed to form a clamping groove for accommodating the connecting sleeve.

Images