Multi-module combined plate-type cross wedge rolling mill

Abstract

The invention discloses a multi-module combined plate-type cross wedge rolling mill, relates to the field of cross wedge rolling machining, solves the problems that in the prior art, cross wedge rolling is too high in production cost, low in production and machining efficiency and low in yield, and mainly adopts the technical scheme that the multi-module combined plate-type cross wedge rolling mill is used for solving the problems. Comprising a rack, a first crawler belt assembly arranged on the rack, a supporting assembly arranged opposite to the first crawler belt assembly and a driving part used for driving the first crawler belt assembly to rotate, a working area used for forming a blank shaft is formed between the supporting assembly and the first crawler belt assembly, and the first crawler belt assembly comprises a plurality of crawler belt plates; transverse rolling modules are arranged on the track shoe, and a forming wedge is formed by a plurality of adjacent transverse rolling modules, so that a blank shaft is extruded by the forming wedge during forming. The cross wedge rolling device is mainly used for improving the production efficiency of cross wedge rolling and reducing the cost of cross wedge rolling.

Description

Technical Field

[0001] The present application relates to the field of wedge cross rolling processing, and in particular to a multi-module combined plate-type wedge cross rolling machine. Background Art

[0002] The wedge cross rolling process in the prior art is divided into two types: plate wedge cross rolling and roller wedge cross rolling. Plate wedge cross rolling mainly uses two flat rollers with wedge-shaped molds. Under the extrusion of the mold, the material flows along the shape of the mold and finally forms the desired shape, such as various shaft parts. The advantages of this process are relatively simple mold design and low mold processing cost, but due to the difficulty in placing the guide plate, the rolling stability is poor, the forming accuracy is low, and there is an empty stroke, the efficiency is low, so it is usually used to manufacture billets. The main working parts of roller wedge cross rolling are one or more pairs of rollers with wedge-shaped protrusions. During the rolling process, the rollers rotate in the same direction, and the round billet is placed between the rollers. As the rollers rotate, the wedge-shaped protrusions gradually exert pressure on the billet, causing the billet to produce continuous local deformation. Under the wedge action of the rollers, the metal material flows along the shape of the mold, and is gradually rolled from the original cylinder into shaft parts with complex shapes such as stepped shafts and tapered shafts. Compared with plate-type wedge cross rolling, roller wedge cross rolling does not require stopping during processing and can achieve continuous processing, so the processing efficiency is higher.

[0003] However, since roller wedge rolling requires the use of complete round rollers for processing, as the diameter of the rolled piece increases and the axial length increases, the diameter of the wedge rolling mold increases significantly, resulting in an increase in the size of the equipment itself. Therefore, roller wedge rolling will occupy a larger space, and there will be great technical difficulties in processing the mold onto an arc-shaped surface, resulting in high production costs for the processing rollers and the cost of wedge rolling equipment, which seriously restricts the promotion of wedge rolling technology. Summary of the invention

[0004] In order to overcome the problems in the prior art such as the large wedge-cross rolling mold leading to an increase in the size of the equipment body and excessively high manufacturing costs, the present application provides a multi-module plate-type wedge-cross rolling machine that can significantly reduce the radial size of the mold and the size of the equipment body, thereby reducing the production cost of wedge-cross rolling.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a multi-module plate-type wedge cross-rolling machine, comprising a frame, a first track assembly arranged on the frame, a support assembly arranged opposite to the first track assembly, and a driving member for driving the first track assembly to rotate, a working area for forming a blank shaft is formed between the support assembly and the first track assembly, the first track assembly comprises a plurality of track plates, some of the track plates are provided with independent cross-rolling modules, the track plates provided with the cross-rolling modules are detachably mounted on the track assembly, and a plurality of adjacent cross-rolling modules abut to form a forming wedge, so that the blank shaft is squeezed by the forming wedge during forming.

[0006] After adopting the above technical scheme, the present application has the following advantages: the multi-module combination plate wedge cross-rolling machine of the present application adopts the method of setting the cross-rolling module on the track plate, and ensures the rolling length of the mold by increasing the lateral length and reducing the radial height. It does not need to perform complex processing on the curved surface like the roller type, thereby effectively reducing the production cost of the mold, and due to the periodic cycle operation characteristics of the track assembly, the continuity of the production and processing of the blank shaft is not inferior to the efficiency of the roller type processing, and the forming wedge of the whole cross-rolling mold is divided into multiple cross-rolling modules, and they are independently installed on multiple track plates, so that the processing difficulty of the cross-rolling module is further reduced. It only needs to be processed in batches and then installed on the track plate for assembly. When one of the parts is scrapped due to processing errors or other reasons, there is no need to scrap the entire wedge cross-rolling. It is only necessary to remove the track plate of that part together with the cross-rolling module, and reinstall the intact cross-rolling module to resume production, which greatly improves the efficiency and economy of processing cross-rolling molds.

[0007] Furthermore, the supporting assembly is a second crawler assembly, and the crawler plate of the second crawler assembly is provided with a same cross-rolling module, and a plurality of adjacent cross-rolling modules form a forming wedge.

[0008] By adopting the above-mentioned technical solution, the forming wedges on the two track assemblies process the blank shaft at the same time, which is equivalent to that in a single processing process, the blank shaft can be affected by the forming wedges from both the upper and lower sides at the same time. This simultaneous upper and lower processing method can perform more processing operations on the blank shaft in the same time, further improving production efficiency.

[0009] Furthermore, a support member is provided in the first track assembly, and the support member is provided on the side of the track away from the working area. The support member is pressed against the track shoe in the working area to support the track shoe extrusion blank shaft in the working area.

[0010] With the aforementioned technical solution, since the combined rigidity of the track shoe itself is not high, the track will be subjected to a large reaction force when the blank shaft is extruded. At this time, a support member is arranged on the back of the working area. When the track shoe applies pressure to the blank shaft for cross-rolling processing, the support member can effectively share this part of the pressure, thereby preventing the track shoe from being deformed or damaged due to being subjected to large pressure for a long time, and ensuring the forming quality of the processed blank shaft.

[0011] Furthermore, the support member pushes the crawler track in the working area toward the working area so that the crawler track protrudes outward.

[0012] By adopting the above-mentioned technical solution, the distance between the support assembly and the crawler track gradually decreases from far away from the working area to close to the working area through the protruding crawler plate in the processing area, which makes it easier to place the blank shaft into the working area of ​​the crawler machine and improves the efficiency of production and processing.

[0013] Furthermore, the first crawler mechanism and / or the supporting assembly are slidably connected to the frame so that the first crawler mechanism and the supporting assembly can move away from or closer to each other.

[0014] With the above technical solution, for blank shafts with larger diameters, the distance between the first crawler mechanism and the support assembly can be increased to ensure that there is enough space to accommodate the blank shaft and perform normal extrusion processing; while for blank shafts with smaller diameters, the distance between them can be reduced so that the cross-rolling modules on the crawler plate and the support assembly can fit the blank shaft more closely to ensure the processing accuracy and effect. Through this adjustable method, the equipment can better adapt to blank shafts of various sizes and specifications, without the need to frequently replace equipment or perform complex modifications for processing tasks of different sizes, thereby improving the versatility and production efficiency of the equipment.

[0015] Furthermore, the cross-rolling module is detachably connected to the track shoe.

[0016] With the above technical solution, if a cross-rolling module is worn, damaged, or has reduced processing accuracy, maintenance personnel can quickly and accurately locate the specific faulty module because it is detachably connected to the track plate. There is no need to conduct complex troubleshooting of the entire track plate or equipment, which greatly saves time for fault diagnosis and improves the efficiency of equipment maintenance. The detachable connection allows flexible selection and matching of different types and specifications of cross-rolling modules to be installed on the track plate according to specific processing requirements.

[0017] Furthermore, the working area is also provided with a positioning component for limiting the blank axis within the working area.

[0018] With the above technical solution, the blank shaft will be subjected to the extrusion force from the cross-rolling module on the track shoe. If there is no restriction of the positioning component, the blank shaft may be unstable due to these external forces, such as shaking and displacement. The positioning component firmly fixes the blank shaft in the working area, which can effectively resist the influence of these external forces, maintain the stability of the blank shaft, and enable the processing process to proceed smoothly and continuously, reducing the processing quality problems caused by the instability of the blank shaft, such as uneven surface and irregular shape.

[0019] Furthermore, the positioning assembly includes a first positioning roller and a second positioning roller, and the first positioning roller and the second positioning roller are arranged front and back along the moving direction of the track shoe so that the blank shaft is placed between the first positioning roller and the second positioning roller.

[0020] With the above technical solution, when the blank shaft moves with the operation of the crawler shoe, the first positioning roller and the second positioning roller also play a good limiting role, preventing the blank shaft from deviating left and right or jumping during the rotation of the working area, and other unstable situations, further ensuring the stability and accuracy of the processing process.

[0021] Furthermore, the first track assembly and / or the second track assembly includes a supporting side plate installed on the side of the track, the track extends a guide section axially, and the supporting side plate is provided with a track groove adapted to the guide section for guiding the track route, so that the guide section in the working area extends into the track groove.

[0022] By adopting the above-mentioned technical solution, the track can run in the predetermined direction of the track groove through the cooperation between the guide section and the track groove, so that the travel route of the track can be adjusted differently according to different blank shafts. At the same time, the guide section in the working area can transfer the reaction force generated when the track squeezes the blank shaft to the supporting side plate, further increasing the strength of the track assembly.

[0023] Furthermore, the track groove at the working area is recessed in a direction away from the working area, and the track groove is provided with a guide opening near the working area.

[0024] By adopting the above-mentioned technical solution, the track groove in the working area is recessed in the direction away from the working area, so that the crawler track in the working area presents a concave processing working area, so that the parts of the positioning assembly can be reduced, the matching relationship between the components is reduced, the corresponding debugging and design are reduced, and the processing efficiency and product economy are improved. The setting of the guide port can provide a more precise guiding effect for the guide section of the crawler track when the crawler track approaches the working area. The existence of the guide port can make timely corrections to the crawler track at the key node when it enters the working area, thereby avoiding the deflection of the crawler track to a great extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present application will be further described below in conjunction with the accompanying drawings: Figure 1 A schematic diagram of a multi-module plate-type cross wedge rolling mill for the present application; Figure 2 is a schematic diagram of Example 2; Figure 3 is a schematic diagram of the interior of the first crawler assembly in Example 2; Figure 4 is a schematic diagram of Example 3; Figure 5 is a schematic diagram of the interior of the first crawler assembly in Example 3; Figure 6 Schematic diagram of the supporting side panel.

[0026] Description of the drawings: 1. Frame; 11. Base; 12. Support column; 2. First track assembly; 21. Track shoe; 22. Support side plate; 221. Track groove; 222. Guide port; 23. Connecting column; 231. Guide section; 24. Clip-on; 25. Gear shaft; 3. Second track assembly; 4. Working area; 5. Cross-rolling module; 6. Support member; 7. Positioning assembly; 71. First positioning roller; 72. Second positioning roller. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0028] The terms "first", "second", etc. (if any) in the specification and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish before a certain technical feature, it does not necessarily indicate that it has "first". It should be understood that in this application, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in this application, "multiple" refers to two or more. "And / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0029] The following specific embodiments are used to describe the technical solution of the present application in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0030] Embodiment 1: like Figure 1As shown, the present application provides a multi-module plate wedge cross-rolling machine, including a frame 1, a first track assembly 2 arranged on the frame 1, a support assembly arranged opposite to the first track assembly 2 and a driving member for driving the first track assembly 2 to rotate, a working area 4 for forming a blank shaft is formed between the support assembly and the first track assembly 2, the first track assembly 2 includes a plurality of track plates 21, some of the track plates 21 are provided with independent cross-rolling modules 5, the track plates 21 provided with the cross-rolling modules 5 are detachably mounted on the track assembly, and a plurality of adjacent cross-rolling modules 5 abut to form a forming wedge, so that the blank shaft is squeezed by the forming wedge during forming.

[0031] After adopting the above technical scheme, the present application has the following advantages: the multi-module combination plate wedge cross-rolling machine of the present application adopts the method of setting the cross-rolling module 5 on the track plate 21, and ensures the rolling length of the mold by increasing the lateral length and reducing the radial height. It does not need to perform complex processing on the curved surface like the roller type, thereby effectively reducing the production cost of the mold, and due to the periodic cycle operation characteristics of the track assembly, the continuity of the production and processing of the blank shaft is not inferior to the efficiency of the roller type processing, and the forming wedge of the whole cross-rolling mold is divided into multiple cross-rolling modules 5, and they are installed on multiple track plates 21, so that the processing difficulty of the cross-rolling module 5 is further reduced. It is only necessary to process each part in batches and then install it on the track plate 21 for assembly. When one of the parts is scrapped due to processing errors or other reasons, there is no need to scrap the entire wedge cross-rolling. It is only necessary to remove the track plate 21 of that part together with the cross-rolling module 5, and reinstall the intact cross-rolling module 5 to resume production, which greatly improves the efficiency and economy of processing cross-rolling molds.

[0032] Specifically, the blank shaft refers to a shaft part blank that has undergone preliminary processing and has the basic shape of a shaft, but has not yet reached the final design dimensional accuracy and surface quality requirements. The support assembly and the first crawler assembly 2 are arranged up and down.

[0033] Preferably, in the working area 4, the support assembly and the track shoes 21 of the first track assembly 2 are in a relatively parallel state, ensuring that the blank axis remains balanced during processing. And the adjacent track shoes 21 are closely fitted to ensure the processing continuity of the forming wedge.

[0034] It can be understood that the support assembly can be a support plate, a support roller or the like, which is used to support the blank shaft, so that the support assembly and the first crawler assembly 2 can press the blank shaft against each other.

[0035] Furthermore, the supporting assembly is a second crawler assembly 3, and the crawler plate 21 of the second crawler assembly 3 is provided with a same transverse rolling module 5, and a plurality of adjacent transverse rolling modules 5 form a forming wedge.

[0036] By adopting the above-mentioned technical solution, the forming wedges on the two track assemblies process the blank shaft at the same time, which is equivalent to that in a single processing process, the blank shaft can be affected by the forming wedges from both the upper and lower sides at the same time. This simultaneous upper and lower processing method can perform more processing operations on the blank shaft in the same time, further improving production efficiency.

[0037] Furthermore, a support member 6 is provided in the first track assembly 2 , and the support member 6 is provided on the side of the track away from the working area 4 , and the support member 6 is pressed against the track shoe 21 of the working area 4 to support the track shoe 21 in the working area 4 to extrude the blank shaft.

[0038] With the aforementioned technical solution, since the combined rigidity of the track shoe 21 itself is not high, the track will be subjected to a large reaction force when the blank shaft is extruded. At this time, a support member 6 is arranged on the back of the working area 4. When the track shoe 21 applies pressure to the blank shaft for transverse rolling, the support member 6 can effectively share this part of the pressure, thereby preventing the track shoe 21 from being deformed or damaged due to being subjected to large pressure for a long time, and ensuring the molding quality of the processed blank shaft.

[0039] Preferably, the support member 6 is a rotating shaft in the first track assembly 2, which can rotate with the circulation of the track, thereby reducing the wear on the track. It is understandable that due to the needs of cost, working conditions, etc., the support member 6 can also be designed as a flat plate parallel to the track shoe 21 in the working area, and the friction between the flat plate and the track shoe 21 is reduced by lubricating grease, etc. It can also be designed as other forms of support member 6, all of which fall within the scope of protection of the present application.

[0040] Furthermore, a positioning component 7 for limiting the blank axis within the working area 4 is also provided in the working area 4 .

[0041] With the above technical solution, the blank shaft will be subjected to the squeezing force from the cross-rolling module 5 on the track shoe 21. If there is no restriction of the positioning component 7, the blank shaft may be unstable due to these external forces, such as shaking and displacement. The positioning component 7 firmly fixes the blank shaft in the working area 4, which can effectively resist the influence of these external forces, maintain the stability of the blank shaft, and enable the processing process to proceed smoothly and continuously, reducing the processing quality problems caused by the instability of the blank shaft, such as uneven surface and irregular shape.

[0042] Furthermore, the positioning assembly 7 includes a first positioning roller 71 and a second positioning roller 72 , which are arranged front and back along the moving direction of the track shoe 21 so that the blank shaft is placed between the first positioning roller 71 and the second positioning roller 72 .

[0043] With the above technical solution, when the blank shaft rotates with the operation of the track shoe 21, the first positioning roller 71 and the second positioning roller 72 play a good limiting role, preventing the blank shaft from deviating left and right or jumping during the rotation of the working area, and further ensuring the stability and accuracy of the processing process.

[0044] Furthermore, the first crawler mechanism and / or the supporting assembly are slidably connected to the frame 1 so that the first crawler mechanism and the supporting assembly can move away from or closer to each other.

[0045] By adopting the above technical solution, for a blank shaft with a larger diameter, the distance between the first crawler mechanism and the support assembly can be increased to ensure that there is enough space to accommodate the blank shaft and perform normal extrusion processing; while for a blank shaft with a smaller diameter, the distance between them can be reduced so that the crawler plate 21 and the cross-rolling module 5 on the support assembly can fit the blank shaft more closely to ensure the processing accuracy and effect. Through this adjustable method, the equipment can better adapt to blank shafts of various sizes and specifications, without the need to frequently replace equipment or perform complex modifications for processing tasks of different sizes, thereby improving the versatility and production efficiency of the equipment.

[0046] Specifically, the frame 1 includes a base 11 and a vertically arranged support column 12 connected to the base 11, and the support column 12 is slidably connected to the first crawler machine and / or the support assembly.

[0047] Furthermore, the cross-rolling module 5 and the track shoe 21 are detachably connected.

[0048] With the above technical solution, if a certain cross-rolling module 5 is worn, damaged, or has reduced processing accuracy, the maintenance personnel can quickly and accurately locate the specific faulty module because it is detachably connected to the track plate 21. There is no need to conduct complex troubleshooting of the entire track plate 21 or equipment, which greatly saves the time of fault diagnosis and improves the efficiency of equipment maintenance. The detachable connection allows flexible selection and matching of different types and specifications of cross-rolling modules 5 installed on the track plate 21 according to specific processing requirements.

[0049] Specifically, the cross-rolling module 5 and the track shoe 21 are detachably connected by bolt connection, snap connection or the like.

[0050] It will be appreciated that a rather long mould may be used for the first track assembly, and the mould length in the present embodiment may be up to nearly 8 metres, so that a wedge-shaped tool of typical design may be used to roll the axle.

[0051] Embodiment 2: like Figures 2 to 3 As shown, the support member 6 pushes the crawler track in the working area 4 toward the working area 4 so that the crawler track protrudes outward.

[0052] By adopting the above-mentioned technical solution, through the protruding track plate 21 in the processing area, the distance between the support assembly and the track gradually decreases from far away from the working area 4 to close to the working area 4, which makes it easier to place the blank shaft into the working area 4 of the crawler machine and improves the efficiency of production and processing.

[0053] Specifically, since the support member 6 protrudes the crawler track toward the working area 4, the crawler shoe 21 in this embodiment is also correspondingly configured as a crawler shoe 21 structure with a certain curvature.

[0054] Preferably, in order to adapt to the arc-shaped track shoe 21 structure, the same support member 6 is provided on one side of the track corresponding to the working area 4, so that the track is also correspondingly convex on the other side to avoid the track shoes 21 from rubbing against each other and being damaged during use, so that the entire first track assembly presents an elliptical form. The curvature of this type of track assembly is equivalent to using a roller with a very large diameter. In comparison, the advantages of the roller can be retained and the disadvantages such as excessive volume and inconvenience in manufacturing can be avoided. Compared with a double-roller rolling mill with a large roller diameter, this rolling mill has the advantage of much smaller torque and can be used to process parts such as railway axles.

[0055] Embodiment 3: like Figures 4 to 6 As shown, the first track assembly 2 and / or the second track assembly 3 include a supporting side plate 22 installed on the side of the track, the track extends a guide section 231 axially, and the supporting side plate 22 is provided with a track groove 221 adapted to the guide section 231 for guiding the track route, so that the guide section 231 in the working area extends into the track groove 221.

[0056] By adopting the above-mentioned technical solution, through the cooperation between the guide section 231 and the track groove 221, the track can run in the predetermined direction of the track groove 221, so that the travel route of the track can be adjusted differently according to different blank axes. At the same time, the guide section in the working area can transfer the reaction force generated when the track squeezes the blank axis to the supporting side plate, further increasing the strength of the track assembly.

[0057] Specifically, the crawler track is connected by a plurality of connecting columns 23 and a clamping piece 24 for connecting adjacent connecting columns 23. A track shoe 21 is connected to every two connecting columns 23. The above-mentioned guide section 231 is one end of the axial extension of the connecting column 23. A gear shaft 25 is wrapped in the crawler track. The gear shaft 25 can drive the connecting column to rotate around the gear shaft 25 by meshing with the connecting column 23, and the shaft body of the gear shaft 25 is directly installed on the supporting side plate 22, which can improve the rigidity of the overall crawler track assembly.

[0058] Furthermore, the track groove 221 at the working area 4 is recessed in a direction away from the working area 4 , and a guide opening 222 is provided in the track groove 221 near the working area 4 .

[0059] By adopting the above-mentioned technical solution, the track groove 221 in the working area 4 is recessed in the direction away from the working area 4, so that the crawler in the working area 4 presents a concave processing working area 4, so that the parts of the positioning assembly 7 can be reduced here, the matching relationship between the components is reduced, the corresponding debugging and design are reduced, and the processing efficiency and product economy are improved. The setting of the guide port 222 can provide a more accurate guiding effect for the guide section 231 of the crawler when the crawler approaches the working area 4. In the absence of the guide port 222, if there is a slight position deviation when the crawler enters the working area 4, this deviation may gradually accumulate as the processing continues, thereby affecting the interaction between the crawler and the blank shaft, resulting in reduced processing accuracy, uneven force on the blank shaft, and other problems. The existence of the guide port 222 can timely correct the crawler at the key node where the crawler enters the working area 4, greatly avoiding the deflection of the crawler.

[0060] It can be understood that the track groove 221 of the supporting side plate 22 also belongs to the category of the supporting member 6, because when the track extrudes the blank shaft, the reaction force transmitted by the track through the connecting column 23 can directly act on the track groove 221. The positions of the first track assembly and the second track assembly can be swapped without affecting the use, that is, the first track assembly can be on the upper side or the lower side, and the second track assembly is the same.

[0061] In addition to the above-mentioned preferred embodiments, the present application also has other implementation modes. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present application.

Claims

1. A multi-module plate-type cross wedge rolling mill, characterized in that: It includes a frame, a first track assembly arranged on the frame, a support assembly arranged opposite to the first track assembly and a driving member for driving the first track assembly to rotate, a working area for forming a blank shaft is formed between the support assembly and the first track assembly, the first track assembly includes a plurality of track plates, some of the track plates are provided with independent cross-rolling modules, the track plates provided with the cross-rolling modules are detachably mounted on the track assembly, and a plurality of adjacent cross-rolling modules abut to form a forming wedge, so that the blank shaft can be squeezed by the forming wedge during forming.

2. A multi-module plate cross wedge rolling mill according to claim 1, characterized in that: The supporting assembly is a second crawler assembly, and the crawler plate of the second crawler assembly is provided with a same transverse rolling module, and a plurality of adjacent transverse rolling modules form a forming wedge.

3. The multi-module plate cross wedge rolling mill according to claim 1, characterized in that: A support is provided in the first track assembly. The support is provided on the side of the track away from the working area. The support is pressed against the track shoe in the working area to support the track shoe extrusion blank shaft in the working area.

4. A multi-module plate cross wedge rolling mill according to claim 3, characterized in that: The support member pushes the crawler track in the working area toward the working area so that the crawler track protrudes outward.

5. The multi-module plate cross wedge rolling mill according to claim 1, characterized in that: The first crawler mechanism and / or the supporting assembly are slidably connected to the frame so that the first crawler mechanism and the supporting assembly move away from or approach each other.

6. A multi-module plate cross wedge rolling mill according to any one of claim 1, characterized in that: The cross-rolling module is detachably connected to the track shoe.

7. A multi-module plate cross wedge rolling mill according to any one of claims 1 to 6, characterized in that: The working area is also provided with a positioning component for limiting the blank axis within the working area.

8. The multi-module plate cross wedge rolling mill according to claim 7, characterized in that: The positioning assembly comprises a first positioning roller and a second positioning roller, wherein the first positioning roller and the second positioning roller are arranged front and back along the moving direction of the track shoe so that the blank shaft is placed between the first positioning roller and the second positioning roller.

9. The multi-module plate cross wedge rolling mill according to claim 2, characterized in that: The first track assembly and / or the second track assembly comprises a supporting side plate installed on the side of the track, the track extends a guide section axially, and the supporting side plate is provided with a track groove adapted to the guide section for guiding the track route so that the guide section in the working area extends into the track groove.

10. The multi-module plate cross wedge rolling mill according to claim 9, characterized in that: The track groove at the working area is recessed in a direction away from the working area, and a guide opening is provided in the track groove near the working area.

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