A synchronous belt side seal device capable of controlling the state of the edge of a cast and rolled structure

Abstract

The application relates to a synchronous belt side sealing device capable of adjusting and controlling the edge state of a casting and rolling structure, belonging to the technical field of metal material processing, and comprising a pair of synchronous side sealing belts covering the two sides of a casting and rolling area from a casting and rolling gate end to a casting and rolling outlet end, and a pre-tightening force is formed between any synchronous side sealing belt and an adjacent casting and rolling roller; synchronous side sealing belts are driven to move by synchronous belt wheel assemblies, so that the edge of the casting and rolling area forms synchronous movement consistent with the casting and rolling direction, so that the contact boundary of the whole casting and rolling area, including the upper and lower boundaries in contact with the casting and rolling roller and the side boundary in contact with the side sealing belt, all have moving speeds pointing to the casting and rolling outlet. The application can improve the uniformity of the solidification structure boundary stress state of the casting and rolling area.

Description

Technical Field

[0001] This invention belongs to the field of metal material processing technology, and in particular relates to a synchronous belt side sealing device with adjustable edge state of casting and rolling structure. Background Technology

[0002] With the development of science and technology and industry, lightweighting has become a key goal for many manufacturing industries. Magnesium and aluminum alloys, as commercially viable lightweight and high-strength metallic structural materials, have broad application prospects and have become popular research materials. Among them, the market demand for wide alloy sheets and strips with a thickness of 0.5-5mm has continued to grow in recent years, especially in high-tech industries such as aerospace, automotive, and electronics. In recent years, the casting-rolling process for producing sheet metal has matured. This processing method involves directly pouring molten metal into the rolling mill, fully utilizing the residual heat of the molten metal and avoiding secondary heating in subsequent rolling processes. It combines the casting and hot rolling processes of sheet metal production, saving energy and simplifying the production process, greatly improving the production efficiency of magnesium sheets and enabling automated production.

[0003] Compared to traditional hot continuous rolling, casting-rolling can significantly reduce production costs and save energy while improving the formability of sheet metal. However, during casting-rolling, the solidified structure in the middle is mainly subjected to the biaxial rolling forces of the upper and lower rolls, while the solidified structure at the edges is subjected to rolling forces, stress from the central solidified structure extending towards the edges due to compression, and reaction forces from the side sealing plates. Furthermore, the edge solidified structure also experiences shear stress due to its own movement and the boundary adhesion formed with the side sealing plates. Therefore, the stress state at the edges of the solidified structure in casting-rolling is extremely complex, easily leading to edge cracks in the formed sheet metal and reducing the yield. Currently, there are limited methods for controlling the microstructure in magnesium alloy casting-rolling processes, necessitating the development of a shape / property synergistic process and device that can effectively improve the stress state at the edges of the solidified structure during casting-rolling. Summary of the Invention

[0004] The purpose of this invention is to provide a synchronous belt side sealing device that can adjust the edge state of the casting and rolling structure, so as to solve the above-mentioned problems and achieve the purpose of improving the control effect of edge shape / property of magnesium alloy casting and rolling zone.

[0005] To achieve the above objectives, the present invention provides the following solution: a synchronous belt side-sealing device with adjustable edge state of the casting and rolling structure, which cooperates with the casting and rolling zone formed by the rotational engagement of at least one pair of casting rolls, comprising: A pair of synchronous side sealing strips are configured to cover both sides of the solidification zone from the casting gate end to the casting exit end, and a preload is formed between any synchronous side sealing strip and the adjacent roll. The synchronous belt pulley assembly is located inside the synchronous side sealing belt. The synchronous belt pulley assembly and the side sealing belt form a toothed engagement, which can convert the rotational torque of the motor into the cyclic motion of the synchronous side sealing belt along the direction from the casting and rolling inlet to the outlet. At the same time, the movement speed of the side sealing belt and the transmission of tension can be adjusted. The support wheel assembly is located at the non-fitting gap between the synchronous side sealing belt and the synchronous belt pulley assembly. The support wheel assembly can increase the toothed mating points, enhance the preload support between the side sealing belt and the roller, maintain the shape of the side sealing belt during operation, and prevent leakage. The housing assembly is located on the upper and lower sides of the synchronous side sealing belt and on the side excluding the working surface. The housing assembly can prevent the internal working mechanism from direct contact with the external environment, and is also equipped with a cleaning blade and resistance wire structure to assist the synchronous side sealing belt in its operation. The tensioning assembly is located on the outside of the housing assembly. The tensioning assembly can fix the synchronous belt pulley assembly, and at the same time, it can exert an active tension force on the synchronous belt pulleys located at the gate end and the outlet end to maintain the working efficiency of the synchronous side sealing belt.

[0006] Preferably, the timing pulley assembly includes: Synchronous pulleys are respectively installed on the inner side of the synchronous side sealing belt at the gate end, solidification end, and outlet end; The pulley disc is fixed on the side end face of the synchronous pulley. Its diameter is slightly larger than the tip circle diameter of the pulley teeth and smaller than the outer diameter of the circle formed by the synchronous side sealing belt and the synchronous pulley. It plays a limiting role for the synchronous side sealing belt without affecting its pre-tightening elastic side sealing function. Bearing shims are placed between the pulley disc and the pulley bearing to serve as a transition between relatively moving parts; The pulley bearing is mounted on the shaft of the synchronous pulley, forming an interference fit. The bearing cover is installed on the through hole on the end face of the synchronous belt pulley shaft to protect the bearing.

[0007] Preferably, the support wheel assembly includes: The support wheel is located at the gap where there is no mating between the synchronous side sealing belt and the synchronous belt pulley assembly. Together with the synchronous belt pulley, it supports the shape of the synchronous side sealing belt and ensures the flatness and support of the working surface of the synchronous belt. The support wheel axle is located between the upper and lower cover plates, and is fixed to the cover plates by a connector, forming a clearance fit with the support wheel.

[0008] Preferably, the housing assembly includes: Side baffles are set on the outer sides of the synchronous side sealing belt, excluding the working surface, and include two arc surfaces and one flat surface, which serve to isolate and protect the outer side of the synchronous side sealing belt. The upper and lower end caps are set on the upper and lower sides of the synchronous side sealing belt and synchronous gear assembly and are connected to the side baffle by bolts. The end caps have three holes, which are respectively matched with three pulley bearings. The hole in the middle is a circular structure and is fastened to the pulley bearing set on the middle synchronous gear shaft. The holes near the gate end and the outlet end are set as limiting groove structures parallel to the rolling direction, so that the synchronous gears on both sides have displacement margin to generate tension. The cleaning blade is located in the slot of the arc section near the casting and rolling exit of the side baffle. It is fixed to the boss plane at the outer end of the slot by bolts. The cleaning blade can be raised by adding shims according to the tension of the synchronous side sealing belt so that it always maintains a good working condition. A resistance wire is wound on the inner wall of the arc section of the side baffle near the casting and rolling inlet, and the power interface is located on the outer wall. It provides heat compensation to the synchronous side sealing strip near the casting and rolling inlet, reducing the temperature difference when the side sealing strip comes into contact with the solidified structure.

[0009] Preferably, the tensioning assembly includes: A retaining ring is located at the outer end of the bearing that mates with the shaft of the timing belt pulley and extends to the outside of the side baffle. It is fastened to the retaining ring connecting rod by bolts. The retaining ring connecting rod is set at the flat end of the side baffle and cooperates with the plate-shaped guide rail. It can move along the guide rail. The middle retaining ring connecting rod is provided with a slot to facilitate the installation of the tensioning module. The plate-shaped guide rail is set at the flat end of the side baffle and is fastened by bolts. One end of the guide rail is equipped with a detachable stop block to facilitate the installation and disassembly of the retaining ring connecting rod. The tensioning module is located in the middle of the plate-shaped guide rail. Long bolts at the four corners fasten it to the plate-shaped guide rail and the side baffle. The push rod extending from the pressure component acts on the mating surface of the two side retaining ring connecting rods.

[0010] Compared with the prior art, the present invention has the following advantages and technical effects: This invention replaces the traditional fixed wedge-shaped side sealing plate with a high-temperature resistant side sealing synchronous belt structure, so that the edge of the casting and rolling zone forms a synchronous movement in the same direction as the casting and rolling. This makes the contact boundary of the entire casting and rolling zone, including the upper and lower boundaries in contact with the casting and rolling roll and the side boundary in contact with the side sealing belt, have a moving speed pointing towards the casting and rolling exit, thereby reducing the difference in the boundary stress state of the entire casting and rolling solidification structure.

[0011] When the linear speed of the side sealing strip is the same as the casting and rolling speed, the side sealing strip is only subjected to the vertical sliding friction force generated by the circumferential motion of the two casting and rolling rolls. At this time, the side sealing device is in optimal working condition, and the wear of the side sealing strip is minimal. If the viscosity between the solidified structure and the side sealing strip changes due to the casting and rolling speed, the heat exchange rate of the cooling circulating water, and the gate pressure, the moving speed of the side sealing strip can be appropriately adjusted to be higher or lower than the casting and rolling speed. This will keep the stress state of the solidified structure at the edge and the middle as consistent as possible, and make the casting and rolling solidification weld line as close to an "I" shape as possible. At this time, the side sealing strip will be subjected to friction forces perpendicular to and parallel to the casting and rolling direction caused by the relative displacement with the casting and rolling rolls, resulting in greater wear.

[0012] In addition, the resistance heating wires arranged inside the side baffle can heat the side sealing strip located at the casting gate end to the average temperature of the roll temperature and the gate temperature, preventing the side sealing strip from cooling too quickly and causing the solidified structure at the edge to cool down rapidly. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram showing the location of action and the casting and rolling process of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is an isometric view of the working surface of the present invention; Figure 4 This is an equiaxial side schematic diagram of the fixed end concealing the upper bearing cover and retaining ring of the present invention; Figure 5 This is a schematic diagram of the present invention with the upper end cover, bearing cover and pulleys on both sides removed. Figure 6 This is a schematic diagram of the end view of the present invention near the casting and rolling exit side; Figure 7 A schematic diagram showing the comparison of the solidification weld line of the intermediate section of the casting and rolling zone before and after implementing this invention; The components include: 1. Synchronous side sealing belt; 2. Synchronous pulley; 3. Pulley disc; 4. Bearing gasket; 5. Pulley bearing; 6. Bearing cover; 7. Support wheel; 8. Support wheel shaft; 9. Side baffle; 10. Upper and lower end covers; 11. Cleaning blade; 12. Resistance wire; 13. Snap ring; 14. Snap ring connecting rod; 15. Plate guide rail; and 16. Tensioning module. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] Example: Refer to Figures 1-7 A synchronous belt side-sealing device for adjustable edge state of casting and rolling structure, which cooperates with the casting and rolling zone formed by the rotational engagement of at least one pair of casting and rolling rolls, wherein: During the casting and rolling process, a pair of synchronous side sealing belts 1 are positioned at both ends of the solidification zone, extending from the casting gate end to the exit end. The pre-tension between the side sealing belts 1 and the rolls ensures the side sealing effect. A matching synchronous pulley assembly is installed inside the side sealing belts 1, utilizing its toothed structure to precisely engage with them, converting the motor's rotational torque into cyclic motion of the side sealing belts 1 along the inlet-to-outlet direction, and allowing adjustment of its running speed and tension. A support wheel assembly is placed in the non-fitting clearance area between the side sealing belts 1 and the synchronous pulleys 2. Figure 5 As shown, this component increases the number of toothed engagement points, strengthens the preload support between the side sealing belt 1 and the roll, and maintains the morphological stability of the side sealing belt 1 during movement, thus helping to prevent leakage. The housing assembly is located above and below the side sealing belt 1 and on the side of the non-working surface, preventing the internal working mechanism from directly contacting the external environment, and is equipped with a cleaning blade 11 and a resistance wire 12 structure to assist the side sealing belt 1 in its operation. In addition, the tensioning assembly is located on the outside of the housing assembly to fix the synchronous pulley assembly, while providing active tension to the synchronous pulleys 2 located at the gate end and the outlet end, ensuring that the synchronous side sealing belt 1 maintains good working performance.

[0017] Understandably, the preload is applied to the side sealing strip 1 to make it fit against the adjacent casting roll. This preload can be provided via an external hydraulic drive or by a support mechanism fixed to the housing assembly. Furthermore, the working surface of the side sealing strip 1 protrudes beyond the plane of the opening end of the housing assembly, such as... Figure 6 As shown, the preload during operation can cause the side sealing belt 1 to undergo elastic deformation along the thickness direction, thereby improving its side sealing performance. The exposed edge of the pulley disc 3 can both limit the synchronous side sealing belt 1 and prevent the housing assembly from contacting the casting roll. When the pulley disc 3 contacts the roll, the side sealing belt 1 needs to be replaced to avoid leakage accidents caused by the reduction of the elastic side sealing force of the side sealing belt 1.

[0018] Furthermore, the synchronous belt pulley assembly includes: Synchronous pulleys 2 are respectively disposed inside the synchronous side sealing belt 1 at the gate end, solidification end, and outlet end; The pulley disc 3 is fixed on the side end face of the synchronous pulley 2. Its diameter is slightly larger than the tooth tip circle diameter of the pulley 2 and smaller than the outer diameter of the circle formed by the synchronous side sealing belt 1 and the synchronous pulley 2. It plays a limiting role for the synchronous side sealing belt 1 without affecting its pre-tightening elastic side sealing function. The bearing shim 4 is disposed between the pulley disc 3 and the pulley bearing 5, and serves as a transition between the relatively moving parts. The pulley bearing 5 is mounted on the shaft of the synchronous pulley 2, forming an interference fit. The bearing cover 6 is installed on the through hole on the end face of the synchronous pulley 2 shaft, and serves to protect the bearing.

[0019] Furthermore, the support wheel assembly includes: The support wheel 7 is located at the non-fitting gap between the synchronous side sealing belt 1 and the synchronous belt pulley assembly. Together with the synchronous belt pulley 2, it supports the shape of the synchronous side sealing belt 1, ensuring the flatness and support of the working surface of the synchronous belt 1. The support wheel axle 8 is located between the upper and lower cover plates 10, and is fixed to the cover plates 10 by a connector, forming a clearance fit with the support wheel.

[0020] Furthermore, the housing assembly includes: Side baffles 9 are provided on the outer sides of the other three surfaces of the synchronous side sealing strip 1, excluding the working surface. They include two arc surfaces and one plane, and serve to isolate and protect the outer side of the synchronous side sealing strip 1. Upper and lower end caps 10 are disposed on the upper and lower sides of the synchronous side sealing belt 1 and the synchronous gear assembly and are bolted to the side baffle. Each end cap has three holes, corresponding to three pulley bearings 5. The middle hole is circular and is securely fitted to the pulley bearing 5 mounted on the middle synchronous gear shaft. The holes near the gate and outlet ends are configured as limiting grooves parallel to the rolling direction, allowing the synchronous gears on both sides to have a displacement margin for tensioning. Figure 4 As shown; The cleaning blade 11 is located at the slot of the arc section near the casting and rolling exit end of the side baffle 9 and is fixed by bolts to the boss plane at the outer end of the slot. The cleaning blade 11 can be raised by adding shims according to the tension of the synchronous side sealing belt 1 so that it always maintains a good working condition. Resistance wire 12 is wound on the inner wall of the arc section near the casting and rolling entrance of the side baffle 9, and the power interface is located on the outer wall to provide heat compensation for the synchronous side sealing strip 1 near the casting and rolling entrance, thereby reducing the temperature difference when the side sealing strip 1 comes into contact with the solidified structure.

[0021] Furthermore, the tensioning component includes: The retaining ring 13 is located at the outer end of the bearing that mates with the shaft of the synchronous pulley 2, and extends to the outside of the side baffle 9, and is fastened to the retaining ring connecting rod 14 by bolts; The retaining ring connecting rod 14 is located at the flat end of the side baffle 9 and cooperates with the plate-shaped guide rail 15. It can move horizontally along the guide rail 15. The middle retaining ring connecting rod 14 is provided with a slot to facilitate the installation of the tensioning module 16. The plate-shaped guide rail 15 is set at the flat end of the side baffle 9 and is fastened by bolts. One end of the guide rail is provided with a detachable stop block to facilitate the installation and disassembly of the retaining ring connecting rod. The tensioning module 16 is located in the middle of the plate-shaped guide rail 15. Long bolts are used to fasten it to the plate-shaped guide rail 15 and the side baffle 9 at the four corners. The push rod extending from the pressure component acts on the mating surface of the two side retaining ring connecting rods 14. The pressure component can be selected from high-pressure springs, hydraulic pressure, piezoelectric effect, etc. to form a pressure source.

[0022] The working process of this embodiment is as follows: A casting zone is formed along a pair of casting rolls from the gate end to the exit end. The synchronous side sealing belt 1 tightly covers both sides of the casting zone. Since the wrap angle between the synchronous pulleys 2 on both sides and the side sealing belt 1 is 180°, the stepper motor is connected to the axle of the synchronous pulleys 2 on both sides through a coupling after removing the bearing cover 6. The motor can be arranged above or below according to the site conditions.

[0023] Start the stepper motor, which drives the synchronous side sealing belt 1 to move via the synchronous pulley 2, so that the edge of the casting and rolling zone forms a synchronous movement in the same direction as the casting and rolling. This makes the contact boundary of the entire casting and rolling zone, including the upper and lower boundaries in contact with the casting and rolling roll and the side boundary in contact with the side sealing belt 1, have a moving speed pointing towards the casting and rolling exit, thereby reducing the difference in the boundary stress state of the entire casting and rolling solidification structure.

[0024] When the linear speed of the side sealing belt 1 is the same as the casting and rolling speed, the side sealing belt 1 is only subjected to the vertical sliding friction force generated by the two casting and rolling rolls due to their circumferential motion. At this time, the side sealing device is in optimal working condition, and the wear of the side sealing belt 1 is minimal. Figure 7 As shown in the figure, the adhesion at the edge of the solidified structure is significantly reduced under this condition, and the solidification time at the edge changes from being significantly earlier than that at the center to being slightly later, resulting in a significant improvement in the stress state at the edge. If the adhesion between the solidified structure and the side sealing strip 1 changes due to the casting speed, cooling water heat exchange rate, and gate pressure, the moving speed of the side sealing strip 1 can be appropriately adjusted to be higher or lower than the casting speed to keep the stress state at the edge and center of the solidified structure as consistent as possible, and to make the casting solidification weld line as close to an "1" shape as possible. At this time, the side sealing strip 1 will be subjected to frictional forces perpendicular to and parallel to the casting direction caused by the relative displacement with the casting roll, resulting in significant wear.

[0025] In addition, auxiliary components are provided during operation. For example, a cleaning blade 11 is installed on the side baffle 9 near the casting exit to remove metal oxides adhering to the side sealing strip 1; a resistance heating wire 12 is wound around the side baffle 9 near the casting entrance to heat the side sealing strip 1, which is about to come into contact with the molten magnesium alloy at the casting gate end, to the average temperature of the roll temperature and the gate temperature, preventing the side sealing strip 1 from cooling too quickly and causing the edge solidification structure to cool rapidly; a tensioning component is provided on the outer end face of the side baffle 9 to fix the housing assembly and the synchronous pulley assembly and to tension the synchronous side sealing strip 1.

[0026] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0027] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A synchronous belt side-sealing device for adjustable edge state of cast and rolled microstructure, which cooperates with a solidification zone formed by at least one pair of casting and rolling rolls, characterized in that, include: A pair of synchronous side sealing strips (1) are configured to cover both sides of the solidification zone from the casting gate end to the casting exit end, and a preload is formed between any one of the synchronous side sealing strips (1) and the adjacent roll. The synchronous pulley assembly is located inside the synchronous side sealing belt (1). The synchronous pulley assembly and the synchronous side sealing belt (1) form a toothed engagement, which can convert the motor rotation torque into the cyclic movement of the synchronous side sealing belt (1) along the direction from the casting and rolling inlet to the outlet. At the same time, the movement speed of the synchronous side sealing belt (1) and the transmission of tension force can be adjusted. The support wheel assembly is located at the mating gap between the synchronous side sealing belt (1) and the synchronous belt pulley assembly. The support wheel assembly can increase the toothed mating point, enhance the preload support of the synchronous side sealing belt (1) and the roll, and maintain the shape of the synchronous side sealing belt (1) during operation to prevent leakage. The housing assembly is provided on the upper and lower sides of the synchronous side sealing strip (1) and the side excluding the working surface. The housing assembly can prevent the internal working mechanism from direct contact with the external environment. It is also provided with a cleaning blade (11) and a resistance wire (12) structure to assist the synchronous side sealing strip (1) in its operation. Side baffles (9) are provided on the outside of the other three surfaces of the synchronous side sealing strip (1) except for the working surface. They include two arc surfaces and a plane, which serve to isolate and protect the outer side of the synchronous side sealing strip (1). The upper and lower end caps (10) are set on the upper and lower sides of the synchronous side sealing belt (1) and the synchronous pulley assembly and are connected to the side baffle by bolts. The end caps have three holes, which are respectively matched with three pulley bearings (5). The hole in the middle is a circular structure and is tightly matched with the pulley bearing (5) set on the shaft of the middle synchronous pulley. The holes near the gate end and the outlet end are set as limiting groove structures parallel to the rolling direction, so that the synchronous pulleys on both sides have displacement margin to generate tension. The cleaning blade (11) is located at the slot of the arc section near the casting and rolling exit of the side baffle (9) and is fixed by bolts to the boss plane at the outer end of the slot. The cleaning blade (11) can be raised by adding a shim according to the tension of the synchronous side sealing belt (1) so that it always maintains a good working condition. The resistance wire (12) is wound on the inner wall of the arc section near the casting and rolling entrance of the side baffle (9), and the power interface is set on the outer wall to provide heat compensation for the synchronous side sealing strip (1) near the casting and rolling entrance, thereby reducing the temperature difference when the synchronous side sealing strip (1) comes into contact with the solidified structure. The tensioning component is located on the outside of the housing assembly. The tensioning component fixes the synchronous belt pulley assembly and exerts an active tensioning force on the synchronous belt pulleys (2) located at the gate end and the outlet end to maintain the working efficiency of the synchronous side sealing belt (1). The tensioning component includes: A retaining ring (13) is provided at the outer end of the bearing that mates with the shaft of the synchronous pulley (2) and extends to the outside of the side baffle (9), and is fastened to the retaining ring connecting rod (14) by bolts; The retaining ring link (14) is set at the flat end of the side baffle (9) and cooperates with the plate guide rail (15). It can move along the plate guide rail (15) and has a slot in the middle of the retaining ring link (14) to facilitate the installation of the tensioning module (16). A plate-shaped guide rail (15) is provided at the flat end of the side baffle (9) and is fastened by bolts. One end of the guide rail is provided with a detachable stop block to facilitate the installation and disassembly of the retaining ring connecting rod. The tensioning module (16) is located in the middle of the plate guide rail (15). It is fastened to the plate guide rail (15) and the side baffle (9) by long bolts at the four corners. The push rod extending from the pressure assembly acts on the mating surface of the two side retaining ring connecting rods (14).

2. The synchronous belt side sealing device with adjustable edge state of casting and rolling structure according to claim 1, characterized in that, The synchronous belt pulley assembly includes: Synchronous pulleys (2) are respectively located inside the synchronous side sealing belt (1) at the gate end, solidification end and outlet end; The pulley disc (3) is fixed on the side end face of the synchronous pulley (2). Its diameter is slightly larger than the tooth tip circle diameter of the synchronous pulley (2) and smaller than the outer diameter of the circle formed by the synchronous side sealing belt (1) and the synchronous pulley (2). It plays a limiting role on the synchronous side sealing belt (1) without affecting its pre-tightening elastic side sealing effect. The bearing shim (4) is disposed between the pulley disc (3) and the pulley bearing (5) to serve as a transition between the relatively moving parts; The pulley bearing (5) is mounted on the shaft of the synchronous pulley (2) to form an interference fit; The bearing cover (6) is installed on the through hole on the end face of the synchronous pulley (2) shaft to protect the bearing.

3. The synchronous belt side sealing device with adjustable edge state of casting and rolling structure according to claim 1, characterized in that, The support wheel assembly includes: The support wheel (7) is located at the gap between the synchronous side sealing belt (1) and the synchronous belt pulley assembly. Together with the synchronous belt pulley (2), it supports the shape of the synchronous side sealing belt (1) and ensures the flatness and support of the working surface of the synchronous side sealing belt (1). The support wheel axle (8) is located between the upper and lower end caps (10) and is fixed to the upper and lower end caps (10) by a connector, forming a clearance fit with the support wheel.

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