A type of rolling mill combination mold

Abstract

This utility model relates to the field of roll processing technology and discloses a roll combination mold, including: a roll body, with necks fixedly installed at both ends of the roll body; a forming structure, including a first mold body, a second mold body, ribs, and anti-detachment grooves, with a plurality of first mold bodies and second mold bodies alternately arranged on the circumferential surface of the roll body, and anti-detachment grooves opened at the ends of the roll body. Ribs are fixedly installed on both the first mold body and the second mold body, and the ribs are inserted into the anti-detachment grooves. By replacing the first mold body and the second mold body and adjusting their placement order, the shape of the extruded workpiece can be adjusted. The ribs can provide a radial thrust force in the anti-detachment grooves to suppress the first mold body and the second mold body from falling off, so that multiple first mold bodies and the second mold body can form an integral part with the first mold body. Furthermore, the radial thrust force provided by the ribs can ensure that the ends of the first mold body and the second mold body fit tightly, and the gap size at the joint of the first mold body and the second mold body is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of rolling mill processing technology, and in particular to a rolling mill combination mold. Background Technology

[0002] Rolls are the main working parts and tools on a rolling mill that cause continuous plastic deformation of metal. Rolls mainly consist of the roll body, roll neck, and shaft end.

[0003] A search revealed that existing technology discloses a roll combination mold (publication number: CN219292696U), including a top mold and a bottom mold; an extension mold is installed between the top mold and the bottom mold; both the top mold and the bottom mold are cylindrical with flanges, and the extension mold is a straight cylinder; end caps are provided at the sealing points of the top mold and the bottom mold; the top surface of the extension mold is machined with a groove, and the bottom surface is machined with an annular platform; multiple extension molds are connected by overlapping the annular platform and the groove; lifting rings are symmetrically arranged on the outer periphery of the extension mold, and cooling air ducts are also installed on the outer periphery of the extension mold; the bottom surface of the top mold is provided with an annular platform, and the top surface of the bottom mold is provided with a groove; the top mold, the bottom mold, and the extension mold are also connected by an annular platform and a groove structure; the annular platform and the groove are fixed by a locking device.

[0004] In the existing technology, the shape of the mold is changed mainly by disassembling and assembling multiple independent extended molds. The extended mold is locked to the roller body by the lifting ring, and the two adjacent extended molds are inserted. This can only provide circumferential limit and cannot provide radial anti-detachment. It relies entirely on the lifting ring for limit. Therefore, the lifting ring is subjected to large shear force during use, which makes it easy to deform and break, affecting the replacement and disassembly of the extended mold in the later stage.

[0005] Therefore, we propose a roll combination mold. Utility Model Content

[0006] The present invention mainly addresses the technical problem that the extended mold, which relies on the lifting ring for radial positioning, is prone to breakage and affects disassembly and assembly, and provides a roller combination mold.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a roll assembly mold, comprising:

[0008] The roller body has necks fixedly installed at both ends;

[0009] The forming structure is detachably mounted on the circumferential surface of the roller body for extrusion. The forming structure includes a first mold body, a second mold body, ribs, and anti-detachment grooves. Several first mold bodies and second mold bodies are alternately arranged on the circumferential surface of the roller body. Anti-detachment grooves are opened at the ends of the roller body. Ribs are fixedly installed on both the first mold body and the second mold body. The ribs are inserted into the anti-detachment grooves.

[0010] A locking structure is provided at the end of the roller body to limit the first mold and the second mold.

[0011] In a preferred embodiment of this utility model, the anti-detachment groove is formed into a spiral groove, which extends from one end of the roller body to the other end, and a margin is left between the bottom of the anti-detachment groove and the end of the roller body.

[0012] In a preferred embodiment of this utility model, the rib is formed into a spiral column that fits with the anti-detachment groove, the end section of the rib is semi-circular, and the anti-detachment groove is adapted to the rib.

[0013] In a preferred embodiment of this utility model, both the first mold body and the second mold body are annular, the first mold body and the second mold body are of equal length, the inner circumferential surfaces of the first mold body and the second mold body are fixedly installed with ribs, and the outer circumferential surfaces of the first mold body and the second mold body are provided with extrusion structures for forming.

[0014] As a preferred embodiment of the present invention, the locking structure includes a first limiting plate, an anti-slip groove, and a second limiting plate. The first limiting plate is fixedly installed with the roller body and is flush with the end of the roller body. The second limiting plate is disposed at the other end of the roller body. Several anti-slip grooves are provided on the opposite side of the first limiting plate and the second limiting plate.

[0015] In a preferred embodiment of this utility model, both the first limiting plate and the second limiting plate are annular structures, and the anti-slip groove is a groove with a triangular cross-section.

[0016] In a preferred embodiment of the present invention, the locking structure further includes a nut and a pin, wherein the nut is threadedly connected to one of the necks, and the pin is inserted into the neck and limits the position of the nut.

[0017] In a preferred embodiment of this utility model, a spring washer is provided between the nut and the second limiting plate. The nut pushes the spring washer and applies a pushing force to the second limiting plate. The pin is located on one side of the nut.

[0018] This utility model provides a roll assembly mold. It has the following beneficial effects:

[0019] 1. This type of roller combination mold allows for the replacement of first and second mold bodies with different extrusion structures. The first and second mold bodies have multiple specifications, with their inner diameters equal to the roller body diameter and their outer diameters potentially different. By replacing the first and second mold bodies and adjusting their placement order, the shape of the extruded workpiece can be adjusted. During installation, the first and second mold bodies are simply placed on the circumference of the roller body, and the first and second mold bodies are limited by the spiral rotation of the ribs within the anti-detachment groove. Compared to the existing disassembly and assembly methods, the ribs within the anti-detachment groove provide radial thrust along the roller body, preventing the first and second mold bodies from falling off. This allows multiple first and second mold bodies to form an integral unit with the first mold body. Furthermore, the radial thrust provided by the ribs ensures a tight fit between the ends of the first and second mold bodies, guaranteeing the size of the gap at the joint between the first and second mold bodies.

[0020] 2. In this type of roll assembly mold, a first limiting plate forms a limit at one end of the roll body, and a second limiting plate forms a limit at the other end of the roll body. The first and second limiting plates provide radial limiting and anti-detachment for multiple first and second mold bodies, while the anti-slip groove can increase the contact force between the first and second limiting plates and the ends of the first or second mold bodies, suppressing the axial rotation of the first or second mold bodies. Thus, the radial and circumferential limiting effects of the first and second mold bodies after installation with the roll body are guaranteed.

[0021] 3. This type of roller combination mold, by fastening the nut, has a hole in the neck for inserting a pin. By inserting the pin into the hole and bending it, the nut is limited and prevented from falling off. When the nut squeezes the spring washer and provides lateral compression to the second limiting plate, multiple first and second mold bodies can maintain a stable connection with the roller body, making it less prone to radial slippage and circumferential rotation. The first or second mold body can be easily and quickly disassembled and replaced. Attached Figure Description

[0022] Figure 1 This is one of the overall perspective views of this utility model;

[0023] Figure 2 This is the second overall perspective view of the present utility model;

[0024] Figure 3 This is a partial sectional view of the present invention;

[0025] Figure 4 This is an assembly drawing of the second mold body and the roller body of this utility model;

[0026] Figure 5 This is a three-dimensional view of the first model of this utility model.

[0027] Legend: 10. Roller body; 11. Neck; 20. First mold body; 21. Second mold body; 22. Rib; 23. Anti-detachment groove; 24. First limiting plate; 25. Anti-slip groove; 26. Second limiting plate; 27. Nut; 28. Pin. Detailed Implementation

[0028] A type of roll assembly die, such as Figure 1 and Figure 2 As shown, it includes:

[0029] The roller body 10 has necks 11 fixedly installed at both ends. Specifically, the necks 11 and the roller body 10 are integrally formed by milling.

[0030] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the forming structure is detachably mounted on the circumferential surface of the roller body 10 for extrusion. The forming structure includes a first mold body 20, a second mold body 21, a rib 22, and an anti-detachment groove 23. Several first mold bodies 20 and second mold bodies 21 are alternately arranged on the circumferential surface of the roller body 10. An anti-detachment groove 23 is opened at the end of the roller body 10. The rib 22 is fixedly installed on both the first mold body 20 and the second mold body 21. The rib 22 is inserted into the anti-detachment groove 23, which forms a spiral groove extending from one end of the roller body 10 to the other end. The bottom of the anti-detachment groove 23 is left with a margin between it and the end of the roller body 10. The rib 22 forms a spiral column that fits the anti-detachment groove 23 with a clearance. The end section of the rib 22 is semi-circular. The anti-detachment groove 23 is adapted to the rib 22. The first mold body 20 and the second mold body 21 are both annular. The first mold body 20 and the second mold body 21 are of equal length. The rib 22 is fixedly installed on the inner circumferential surface of the first mold body 20 and the second mold body 21. The outer circumferential surface of the first mold body 20 and the second mold body 21 is provided with an extrusion structure for forming.

[0031] In this design, several detachable first molds 20 and second molds 21 are arranged on the circumferential surface of the roller body 10. By replacing the first molds 20 and second molds 21 with different extrusion structures (the extrusion structure can be a groove or protrusion formed by cutting), the first molds 20 and second molds 21 have multiple specifications. The inner diameter of the first molds 20 and second molds 21 is equal to the diameter of the roller body 10, while the outer diameters of the first molds 20 and second molds 21 can be different. By replacing the first molds 20 and second molds 21 and adjusting their placement order, the shape of the extruded workpiece can be adjusted. During installation, only the first molds 20 and second molds 21 need to be replaced. The first mold 20 and the second mold 21 are fitted onto the circumferential surface of the roller body 10. The first mold 20 and the second mold 21 can be limited by the spiral rotation of the rib 22 in the anti-detachment groove 23. Compared with the disassembly and assembly method of the prior art, the rib 22 can provide a thrust force along the radial direction of the roller body 10 in the anti-detachment groove 23, which can prevent the first mold 20 and the second mold 21 from falling off, so that multiple first molds 20 and second molds 21 can form an integral whole with the first mold 20. Secondly, the radial thrust force provided by the rib 22 can ensure that the ends of the first mold 20 and the second mold 21 fit tightly, and the gap size at the joint of the first mold 20 and the second mold 21 is guaranteed.

[0032] like Figure 2 and Figure 4 As shown, a locking structure is provided at the end of the roller body 10 to limit the first mold 20 and the second mold 21;

[0033] The locking structure includes a first limiting plate 24, anti-slip grooves 25, and a second limiting plate 26. The first limiting plate 24 is fixedly installed with the roller body 10 and flush with the end of the roller body 10. The second limiting plate 26 is located at the other end of the roller body 10. Several anti-slip grooves 25 are formed on the opposite sides of both the first limiting plate 24 and the second limiting plate 26. Both the first limiting plate 24 and the second limiting plate 26 are annular structures. The anti-slip grooves 25 are triangular in cross-section. The first limiting plate 24 forms a limit at one end of the roller body 10, and the second... The limiting plate 26 forms a limit at the other end of the roller body 10. The first limiting plate 24 and the second limiting plate 26 provide radial limiting and anti-detachment for the multiple first molds 20 and second molds 21. The anti-slip groove 25 can increase the contact force between the first limiting plate 24 and the second limiting plate 26 and the end of the first mold 20 or the second mold 21, suppressing the axial rotation of the first mold 20 or the second mold 21. Thus, the radial and circumferential limiting effects of the first mold 20 and the second mold 21 after installation with the roller body 10 are guaranteed.

[0034] like Figure 1 and Figure 2As shown, the locking structure also includes a nut 27 and a pin 28. The nut 27 is threaded to one of the necks 11. The pin 28 is inserted into the neck 11 and limits the nut 27. A spring washer is provided between the nut 27 and the second limiting plate 26. The nut 27 pushes the spring washer and applies a pushing force to the second limiting plate 26. The pin 28 is located on one side of the nut 27.

[0035] As a supplementary explanation of the above solution, by fastening the nut 27, the neck 11 has a hole for inserting the pin 28. By inserting the pin 28 into the hole and bending it, the nut 27 is limited and prevented from falling off. When the nut 27 compresses the spring washer and provides lateral compression to the second limiting plate 26, the multiple first molds 20 and second molds 21 can maintain a stable connection with the roller body 10, and are not prone to radial slippage or circumferential rotation. The disassembly and replacement of the first mold 20 or the second mold 21 is simple and quick.

[0036] The working principle of this utility model is as follows: The first mold body 20 and the second mold body 21 are fitted onto the circumferential surface of the roller body 10. The first mold body 20 and the second mold body 21 are limited by the spiral rotation of the rib 22 within the anti-detachment groove 23. The first limiting plate 24 forms a limit at one end of the roller body 10, and the second limiting plate 26 forms a limit at the other end of the roller body 10. The first limiting plate 24 and the second limiting plate 26 provide radial limiting and anti-detachment for the multiple first mold bodies 20 and second mold bodies 21, while the anti-slip groove 25 can increase the first limiting... The contact force between plate 24 and the second limiting plate 26 and the end of the first mold 20 or the second mold 21 suppresses the axial rotation of the first mold 20 or the second mold 21 and tightens the nut 27. The neck 11 has a hole for inserting the pin 28. By inserting the pin 28 into the hole and bending it, the nut 27 is limited and prevented from falling off. When the nut 27 squeezes the spring washer and provides lateral pressure to the second limiting plate 26, the multiple first molds 20 and second molds 21 can maintain a stable connection with the roller body 10.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A roll assembly die characterized by, include: Roller body (10), with necks (11) fixedly installed at both ends of the roller body (10); The forming structure is detachably set on the circumferential surface of the roller body (10) for extrusion. The forming structure includes a first mold body (20), a second mold body (21), a rib (22), and an anti-detachment groove (23). A plurality of first mold bodies (20) and second mold bodies (21) are alternately arranged on the circumferential surface of the roller body (10). An anti-detachment groove (23) is opened at the end of the roller body (10). The first mold body (20) and the second mold body (21) are both fixedly installed with ribs (22). The ribs (22) are inserted into the anti-detachment groove (23). A locking structure is provided at the end of the roller body (10) to limit the first mold (20) and the second mold (21).

2. The roll set die of claim 1, wherein: The anti-detachment groove (23) forms a spiral groove, and the anti-detachment groove (23) extends from one end of the roller body (10) to the other end, with a margin between the bottom of the anti-detachment groove (23) and the end of the roller body (10).

3. The roll assembly die of claim 1, wherein: The rib (22) forms a spiral column that fits with the anti-detachment groove (23) with a gap. The end section of the rib (22) is semi-circular. The anti-detachment groove (23) is adapted to the rib (22).

4. The roll assembly die of claim 1 wherein: The first mold (20) and the second mold (21) are both circular rings. The first mold (20) and the second mold (21) are of equal length. The inner circumferential surfaces of the first mold (20) and the second mold (21) are fixedly equipped with ribs (22). The outer circumferential surfaces of the first mold (20) and the second mold (21) are provided with extrusion structures for forming.

5. The roll assembly mold according to claim 1, characterized in that: The locking structure includes a first limiting plate (24), an anti-slip groove (25), and a second limiting plate (26). The first limiting plate (24) is fixedly installed on the roller body (10) and flush with the end of the roller body (10). The second limiting plate (26) is located at the other end of the roller body (10). Several anti-slip grooves (25) are opened on the opposite side of the first limiting plate (24) and the second limiting plate (26).

6. The roll assembly mold according to claim 5, characterized in that: The first limiting plate (24) and the second limiting plate (26) are both annular structures, and the anti-slip groove (25) is a groove with a triangular cross-section.

7. The roll assembly mold according to claim 5, characterized in that: The locking structure also includes a nut (27) and a pin (28), the nut (27) being threaded to one of the necks (11), and the pin (28) being inserted into the neck (11) and limiting the nut (27).

8. The roll assembly mold according to claim 7, characterized in that: A spring washer is provided between the nut (27) and the second limiting plate (26). The nut (27) pushes the spring washer and applies a pushing force to the second limiting plate (26). The pin (28) is located on one side of the nut (27).

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