Steel shell flange spiral round cake making device

Abstract

The utility model discloses a kind of steel shell flange spiral round cake manufacturing devices, solve the problem of low utilization rate of steel plate, large thinning rate of steel plate in prior art.The utility model includes feeding mechanism and heating support mechanism and round rolling mechanism;The feeding mechanism includes support, is equipped with a plurality of support rollers and power wheels on support, power wheel is drivingly connected with the drive mechanism being set on support;Round rolling mechanism includes rack, is equipped with the die assembly and the compression wheel component being oppositely arranged on rack, compression wheel component is set on movable base, base is cooperated with the guide rail being set on rack.The utility model is made by the way of round rolling of strip steel plate, and the steel shell flange round cake part is made, and the round cake is spun after being welded with barrel part to form steel shell;Avoid the large piece of waste material produced by center punching when overall round cake is discharged, material utilization is greatly improved, and the production cost of steel shell is reduced.

Description

Technical Field

[0001] This utility model relates to the field of steel bar rolling technology, and in particular to a device for making steel shell flange discs. Background Technology

[0002] Brake drums are safety components of automotive braking systems. Currently, commercial vehicle brake drums are mainly divided into two categories: traditional gray iron brake drums and steel composite brake drums. Among them, gray iron brake drums account for more than half of the market share. Steel composite brake drums are a new force in the brake drum family, having only developed in the last ten years or so, but their development momentum is rapid, and it is only a matter of time before their market share surpasses that of pure gray iron brake drums.

[0003] Steel composite brake drums are renowned for their superior performance, long service life, and light weight, making them particularly suitable for current vehicle energy conservation, emission reduction, and lightweighting requirements. Steel composite brake drums are composed of an outer steel shell and an inner layer of gray iron. The numerous production processes, low steel plate utilization rate, and high production costs are major factors restricting their development.

[0004] The traditional manufacturing process for the outer steel shell of a steel composite brake drum in existing technology involves stamping a single piece of steel into a round disc (as shown below). Figure 1 Then, a small positioning hole is punched in the center of the disc (as shown below). Figure 2 Then, the flange is spun and rolled from the bottom to form a steel shell. A large hole is then punched in the center of the steel shell (as shown below). Figure 3 This is used to reduce the machining allowance for subsequent positioning holes. The existing steel shell production process has the following defects: 1. After three stamping processes, unnecessary steel plates are removed, resulting in a steel plate utilization rate of less than 65%. Large steel plates become scraps after stamping, causing significant waste and increasing the unit cost of the steel shell. 2. After spinning from the lower end of the flange, the wall thickness D1 of the cylinder is 0.4 times the original steel plate thickness D, representing a 60% thinning rate. After the steel shell is spun thinner, the grains are elongated, the elongation decreases, and the steel shell is prone to cracking under stress. Utility Model Content

[0005] To address the shortcomings in the aforementioned background technology, this utility model proposes a steel shell flange spiral disc making device, which solves the problems of low steel plate utilization and high steel plate thinning rate in the prior art.

[0006] The technical solution of this utility model is implemented as follows: a steel shell flange spiral disc making device includes a feeding mechanism, a heating support mechanism, and a rolling mechanism; the feeding mechanism includes a bracket, on which are provided several supporting rollers and a power wheel, the power wheel being connected to a drive mechanism mounted on the bracket; the rolling mechanism includes a frame, on which are provided a mold assembly and a pressure roller assembly arranged opposite to each other, the pressure roller assembly being mounted on a movable base, the base cooperating with a guide rail mounted on the frame. The feeding mechanism is used to support the feeding of strip steel plates, the heating support mechanism is used to support the heated strip steel plates, and the rolling mechanism is used to roll the strip steel plates into spiral disc shapes. In specific use, the strip steel plates are placed into the feeding mechanism, which drives the strip steel plates forward, and the strip steel plates enter the induction heating device for induction heating. When heated to about 700°C, they enter the rolling mechanism, which rolls the heated strip steel plates into layers of spiral discs. The spiral disc is cut into individual discs, and then welded at the cut to form a flange disc. The flange disc is then spun to obtain the desired shape. The entire process does not require stamping, which greatly saves steel and reduces production costs. At the same time, it reduces the steel plate thinning rate.

[0007] In a further preferred embodiment, the heating support mechanism includes a support frame, on which a bottom roller, a pair of guide wheels, and a pair of guide plates are provided. The bottom roller is rotatably mounted on the support frame via a bottom plate wheel seat, and the bottom roller is provided with a positioning ring groove to ensure stable support for the heated strip steel plate.

[0008] Further preferred, the guide wheel pair includes two guide wheels symmetrically arranged on the left and right, and the guide wheels are vertically rotatable on the support frame; the guide plate pair includes two guide plates symmetrically arranged on the left and right, with a clamping gap between the two guide wheels and a guiding gap between the two guide plates; so that the heated strip steel plate can smoothly enter the rolling mechanism.

[0009] Further optimized, the power wheel includes a first power wheel, a second power wheel, and a third power wheel. The first power wheel, the second power wheel, and the third power wheel are all connected to the fixed frame via a main shaft. The fixed frame is fixed to the support. The drive mechanism drives the first power wheel, the second power wheel, and the third power wheel to rotate synchronously, thereby driving the strip steel plate to smoothly enter the induction heating device for uniform heating.

[0010] Further preferably, the spindle includes a first spindle, a second spindle, and a third spindle. The first power wheel is fixed on the first spindle, the second power wheel is fixed on the second spindle, and the third power wheel is fixed on the third spindle. The first spindle, the second spindle, and the third spindle are rotatably connected to their respective fixed frames via bearings.

[0011] In a further preferred embodiment, the drive mechanism includes a motor mounted on a bracket. The motor drives a first main shaft to rotate via a first chain drive. A second chain drive is provided between the first and second main shafts, and a third chain drive is provided between the second and third main shafts. The first, second, and third drive wheels rotate synchronously, driving the strip steel plate to move forward smoothly.

[0012] Further optimization involves providing symmetrically arranged U-shaped frames on the inner wall of the fixing frame, with several auxiliary rollers on the open side of the U-shaped frames; the auxiliary rollers make rolling contact with the strip steel plate, which can reduce friction and ensure the stability of the strip steel plate.

[0013] Further preferred, the mold assembly includes a mold support rotatably mounted on the frame, the mold support being connected to a pressure mold motor mounted on the frame, a circular mold on the mold support, a mold core inside the mold support, the mold core being connected to a top core cylinder mounted on the frame, and the mold core being coaxially mounted with the circular mold; a guide block and a guide positioning groove are provided at the feed inlet of the circular mold; ensuring that the strip steel plate can be accurately wound and formed.

[0014] Further optimization involves a cylindrical mold support structure. A circular mold is fixedly mounted at the front end of the mold support, and a rear support is fixedly mounted at the rear end. The rear support is connected to the machine frame via a bearing bracket. A first bearing is provided between the rear support and the bearing bracket. A driven pulley is provided at the rear end of the rear support. A driving pulley is provided on the mold pressing motor. The driving pulley and the driven pulley are driven by a belt. The mold core is connected to the inner wall of the mold support via a spline. A second bearing is provided between the mold core and the bearing bracket. The piston rod of the top core cylinder is connected to the bearing bracket, and the top core cylinder is fixed to the machine frame via a cylinder bracket.

[0015] In a further preferred embodiment, the pressure roller assembly includes a pressure roller shaft and a circular pressure roller fixed to the end of the pressure roller shaft. The pressure roller shaft is connected to the base via a plate frame, and the pressure roller shaft is rotatably connected to the plate frame via a bearing. The circular pressure roller presses the strip steel plate onto the circular mold, allowing it to be smoothly formed.

[0016] Further preferred, a connecting block is provided on one side of the base, and a telescopic hydraulic cylinder is hinged to the connecting block. The cylinder body of the telescopic hydraulic cylinder is hinged to the frame. The telescopic hydraulic cylinder drives the pressure roller assembly to move through the base, so that the strip steel plate is wound in a spiral shape.

[0017] The beneficial effects of this utility model are as follows: This utility model uses a strip of steel plate to roll into a circular shape to create the circular disc portion of the steel shell flange. The disc is then spun and welded to the cylindrical body to form the steel shell. This avoids the large waste material generated by punching a central hole during the overall disc blanking process, greatly improving material utilization and reducing the production cost of the steel shell. The absence of stamping operations reduces the steel plate thinning rate, refines the grain size, eliminates internal porosity in castings or thick plates, and achieves excellent surface finish and mechanical properties, thus improving the quality of the steel shell production. Furthermore, it eliminates forging heating, ring rolling, and multiple heat treatment processes. The rolling, spun, and welding processes are compact, with fewer heating cycles, significantly reducing energy consumption and labor time.

[0018] This invention's feeding mechanism provides stable support for the feeding of strip steel plates and simultaneously forms a multi-point drive to ensure smooth movement of the strip steel plates. The heating support mechanism provides stable support for the heated strip steel plates, enabling them to smoothly and accurately enter the rolling mechanism. The rolling mechanism utilizes a mold assembly and a pressure roller assembly. The pressure roller assembly presses the steel strip located between the mold assembly and the pressure roller assembly, and the pressure roller assembly can move synchronously to roll the strip steel plates into a spiral disc shape. This invention, by utilizing the feeding mechanism, heating support mechanism, and rolling mechanism in combination, achieves centralized and continuous production, shortens the production cycle, and significantly reduces energy consumption. It ensures stable rolling and forming of strip steel plates, taking into account advantages in cost, quality, and efficiency, and provides a completely new method for steel shell processing, possessing high practicality. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram illustrating the traditional process of stamping a single steel plate into a round disc. Figure 2 A schematic diagram illustrating the traditional process of punching a small positioning hole in the center of a round cake. Figure 3 A schematic diagram illustrating the traditional process of punching a large hole in the center of a steel shell. Figure 4 This is a schematic diagram of the feeding mechanism of this utility model; Figure 5 This is a schematic diagram of the feeding mechanism transmission of this utility model; Figure 6 This is a partial schematic diagram of the feeding mechanism of this utility model; Figure 7 This is a schematic diagram of the heating support mechanism of this utility model; Figure 8 This is a schematic diagram of the rolling mechanism of this utility model; Figure 9 This is a schematic diagram of the mold assembly of this utility model; Figure 10 This is a schematic diagram of the internal structure of the mold assembly of this utility model; Figure 11 This is a schematic diagram of the pressure roller assembly of this utility model; Figure 12 This is a schematic diagram of the subsequent processing of the spiral disc of this utility model. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1, as Figure 4 , 7 As shown in Figure 8, a spiral disc-making device for steel flanges includes a feeding mechanism 1, a heating support mechanism 2, and a rolling mechanism 3. It should be noted that in actual use, this device is used in conjunction with an existing induction heating device. The feeding mechanism 1 is used to feed the strip steel plate (referred to as steel strip) to the induction heating device for heating. The heating support mechanism 2 is used to support the heated steel strip and facilitate its smooth entry into the rolling mechanism. The rolling mechanism is used to roll the heated steel strip into a spiral disc. Specifically, the feeding mechanism 1 includes a support 11, on which several support rollers 12 and a drive wheel 13 are provided. The support rollers 12 can be V-shaped rollers, used for stable support of the strip steel plate. The rollers are connected to the support through a roller frame. The drive wheel 13 is connected to a drive mechanism mounted on the support 11. The rotation of the drive wheel drives the strip steel plate forward through friction. The several support rollers 12 and the drive wheel 13 are located at the same height to ensure stable support of the strip steel plate while ensuring its smooth forward movement. In this embodiment, the rolling mechanism 3 includes a frame 31, on which a mold assembly 32 and a pressure roller assembly 33 are disposed opposite each other. The pressure roller assembly 33 presses the steel strip located between the mold assembly 32 and the pressure roller assembly 33 so that the steel strip is rolled into a disc shape. The pressure roller assembly 33 is mounted on a movable base 34, which cooperates with a guide rail 35 mounted on the frame 31. During the rolling process of the steel strip, the base drives the pressure roller assembly 33 to move, so that it is rolled into a spiral circle. As a preferred embodiment, a dovetail groove is provided at the bottom of the base, and the guide rail is a dovetail-shaped guide rail. The dovetail groove and the dovetail-shaped guide rail cooperate to ensure the stability of the base during movement.

[0023] In practical use, a strip of steel is placed into the feeding mechanism, which moves the strip forward. The strip enters the induction heating device for induction heating. When heated to approximately 700℃, it enters the rolling mechanism, where the pressure rollers of the pressure roller assembly press the strip tightly. Then, the main shaft of the mold rotates at low speed, rolling the strip into layers of spiral discs. The discs are removed from the mold and then cut radially at the same location to form individual discs. These individual discs are then flattened, and the cut edges are welded securely to form flange discs. Finally, the flange discs are spun to obtain the desired shape. The discs produced using this device require no stamping throughout the process, significantly saving steel, reducing production costs, and minimizing the steel sheet thinning rate.

[0024] like Figure 7 As shown, in this embodiment, the heating support mechanism 2, as a preferred embodiment, includes a support frame 21. In actual use, the heating support mechanism is located between the induction heating device and the rolling mechanism. The support frame 21 is equipped with bottom rollers 22, guide roller pairs 23, and guide plate pairs 24. Multiple bottom rollers 22 can be provided to ensure the smooth movement of the steel strip. The bottom rollers 22 are rotatably mounted on the support frame 21 via bottom plate wheel seats 25. The bottom rollers 22 are provided with positioning ring grooves that match the strip steel plate to ensure the stability of the strip steel plate. The bottom of the strip steel plate exiting the induction heating device is located on the bottom rollers, which are made of high-temperature resistant wheels. Then, the guide roller pairs 23 and guide plate pairs 24 guide the strip steel plate to ensure that the heated strip steel plate can smoothly enter the rolling mechanism; and the heated strip steel plate is rolled in a timely manner.

[0025] In this preferred embodiment, the guide wheel pair 23 includes two guide wheels 231 symmetrically arranged on the left and right. The guide wheels 231 are vertically rotatable on the support frame 21, and the guide wheels make rolling contact with the strip steel plate. The guide plate pair 24 includes two guide plates 241 symmetrically arranged on the left and right. The guide plates are as smooth as possible to reduce friction with the strip steel plate. The guide wheels can be made of high-temperature resistant wheels, and the guide plates can be made of high-temperature resistant plates. A clamping gap is left between the two guide wheels 231, and a guiding gap is left between the two guide plates 241. The strip steel plate passes through the guiding gap and the clamping gap in sequence, ensuring that it can smoothly enter the rolling mechanism in a vertical state; it provides support and guidance for the heated strip steel plate.

[0026] Example 2, as Figure 5 , 6As shown, a steel-shell flange spiral disc making device is further optimized based on Embodiment 1. In this embodiment, the power wheel 13 includes a first power wheel 131, a second power wheel 132, and a third power wheel 133. The first power wheel 131, the second power wheel 132, and the third power wheel 133 are all connected to the fixed frame 15 via the main shaft 14, and the fixed frame supports the main shaft. The fixed frame 15 is fixed to the bracket 11, and the drive mechanism drives the first power wheel 131, the second power wheel 132, and the third power wheel 133 to rotate synchronously. In actual use, the strip steel plate is placed on the power wheel and the support roller, and the power wheel uses friction to drive the steel plate to move; at the same time, the three power wheels realize multi-point driving of the strip steel plate, so that it moves forward smoothly.

[0027] Specifically, the main shaft 14 includes a first main shaft 141, a second main shaft 142, and a third main shaft 143. A first drive wheel 131 is fixed on the first main shaft 141, a second drive wheel 132 is fixed on the second main shaft 142, and a third drive wheel 133 is fixed on the third main shaft 143. The first main shaft 141, the second main shaft 142, and the third main shaft 143 are rotatably connected to their respective fixed frames 15 via bearings. The drive mechanism includes a motor 16 mounted on a bracket 11. The motor 16 drives the first main shaft 141 to rotate via a first chain drive 17, thereby rotating the first drive wheel. A second chain drive 18 is provided between the first main shaft 141 and the second main shaft 142, allowing the first main shaft 141 to drive the second main shaft to rotate via the second chain drive 18, thereby rotating the second drive wheel. A third chain drive 19 is provided between the second main shaft 142 and the third main shaft 143, allowing the second main shaft to drive the third main shaft to rotate via the third chain drive, thereby rotating the third drive wheel. It should be noted that the first chain drive 17 includes a first driving sprocket mounted on the motor output shaft and a first driven sprocket mounted on the first main shaft, with the first driving sprocket and the first driven sprocket connected by a chain drive. The second chain drive includes a second driving sprocket mounted on the first main shaft and a second driven sprocket mounted on the second main shaft, with the second driving sprocket and the second driven sprocket connected by a chain drive. Similarly, the third chain drive includes a third driving sprocket mounted on the second main shaft and a third driven sprocket mounted on the third main shaft, with the third driving sprocket and the third driven sprocket connected by a chain drive.

[0028] In this embodiment, as a preferred embodiment, the inner wall of the fixing frame 15 is provided with symmetrically arranged U-shaped frames 110, that is, two U-shaped frames are arranged opposite each other. The opening side of the U-shaped frame 110 is provided with a number of auxiliary rollers 111. The auxiliary rollers roll in contact with the strip steel plate, which can reduce friction and ensure the stability of the strip steel plate.

[0029] Example 3, as Figure 9 , 10As shown, a steel-shell flange spiral disc making device is further optimized based on Embodiment 1 or 2. In this embodiment, the mold assembly 32 includes a mold support 321 rotatably mounted on the frame 31. The mold support adopts a cylindrical structure, and the mold support 321 is connected to the pressing motor 37 mounted on the frame 31. Specifically, the cylindrical mold support is provided with a driven pulley, and the output shaft of the pressing motor is provided with a driving pulley. The driving and driven pulleys are connected by a belt. Under the action of the pressing motor, the mold support 321 is driven to rotate through the belt drive. A circular mold 322 is provided on the front end face of the mold support 321. The mold support 321 contains a mold core 323 and a hydraulic cylinder 324 for driving the mold core 323 to move. After the strip steel plate enters the mold, the mold core 323 extends out, determining the inner diameter of the disc formed by winding the steel strip. The hydraulic cylinder 324 is fixed inside the mold support 321, driving the mold core to extend and retract relative to the mold support. The mold core 323 and the circular mold 322 are coaxially arranged and rotate synchronously under the action of the mold pressing motor. The feed port of the circular mold 322 is provided with a guide block 325 and a guide positioning groove 326; the guide positioning groove 326 positions the end of the steel bar, and the guide block is used for the steel bar to smoothly enter the guide positioning groove 326.

[0030] like Figure 10 As shown, in this embodiment, the mold support 321 has a cylindrical structure. A circular mold 322 is fixedly mounted at the front end of the mold support 321, and a rear support 327 is fixedly mounted at the rear end. The rear support 327 is connected to the frame 31 through a bearing bracket 3212, and a first bearing 3213 is provided between the rear support 327 and the bearing bracket 3212. The number of bearing brackets can be set to one or two as needed. In this embodiment, two bearing brackets are used as an example to improve the stability of the mold support 321. A driven pulley 328 is provided at the rear end of the rear support 327, and a driving pulley 329 is provided on the pressing motor 37. The driving pulley 329 and the driven pulley 328 are driven by a belt. The pressing motor drives the driven pulley to rotate through the driving pulley and the belt, which in turn drives the mold support to rotate through the rear support, ultimately realizing the rotation of the circular mold. The mold core 323 is connected to the inner wall of the mold support 321 through a spline, and drives the mold core to rotate during the rotation of the circular mold. The rear end of the mold core 323 is connected to the piston rod of the ejector cylinder 324 via a bearing seat 3210; the second bearing 3214 is located between the bearing seat and the mold core, ensuring that the rotation of the mold core does not affect its forward and backward extension movement; specifically, the piston rod of the ejector cylinder 324 is threadedly connected to the bearing seat 3210, and the ejector cylinder 324 is fixed to the frame 31 via a cylinder bracket 3211. The piston rod of the ejector cylinder drives the mold core to move within the mold bracket 321.

[0031] like Figure 11As shown, in this embodiment, the pressure roller assembly 33 includes a pressure roller shaft 332 and a circular pressure roller 331 fixed to the end of the pressure roller shaft 332. The pressure roller shaft 332 is connected to the base 34 via a plate frame 333, and the pressure roller shaft 332 is rotatably connected to the plate frame 333 via bearings. A connecting block 341 is provided on one side of the base 34, and a telescopic cylinder 36 is hinged to the connecting block 341. The cylinder body of the telescopic cylinder 36 is hinged to the frame 31. The telescopic cylinder drives the pressure roller assembly to move along the guide rail through the base, realizing the movement relative to the mold. After the circular pressure roller presses the strip steel plate, the mold motor drives the circular mold to rotate at a low speed, and the circular pressure roller rotates together with the strip steel plate. At the same time, the telescopic cylinder drives the circular pressure roller to move backward, ensuring that the strip steel plate is rolled into a spiral-shaped disc.

[0032] The specific implementation process is as follows: The strip steel plate enters the heating coil of the induction heating device through the feeding mechanism. The heating coil heats the strip steel plate using the principle of electromagnetic induction. When alternating current passes through the coil, it generates an alternating magnetic field, causing electromagnetic induction in the strip steel plate and generating an induced current. This current is mainly distributed on the surface of the strip steel plate, causing electrons inside the plate to move at high speed and randomly, colliding and rubbing against each other, thus generating heat and raising the temperature of the strip steel plate. The strip steel plate emerges from the heating coil at approximately 700°C and continues to move forward, passing through the heating support mechanism and entering the mold. The heated strip steel plate enters the guide groove of the circular mold through the guide block, and then the circular pressure roller presses the strip steel plate tightly. The piston rod of the top core cylinder pushes out the mold core. The diameter of the mold core determines the inner diameter of the roll. The pressure mold motor drives the mold and mold core to rotate at low speed, and the circular pressure roller rotates together with the strip steel plate, rolling the strip steel plate into layers of spiral-shaped discs. Remove the disc from the mold, then cut it radially at the same location to form individual discs. Flatten each individual disc and weld the cut edges securely to form a flange disc; as shown. Figure 12 As shown, the flange disc is spun to obtain the desired shape, and then welded to the cylinder section. After the welding is completed, the required steel shell is formed.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel-shell flange spiral disc making device, characterized in that: It includes a feeding mechanism (1), a heating support mechanism (2), and a rolling mechanism (3); the feeding mechanism (1) includes a bracket (11), on which a plurality of support rollers (12) and a power wheel (13) are provided, and the power wheel (13) is connected to a drive mechanism provided on the bracket (11); the rolling mechanism (3) includes a frame (31), on which a mold assembly (32) and a pressure roller assembly (33) are provided opposite to each other, and the pressure roller assembly (33) is provided on a movable base (34), and the base (34) cooperates with a guide rail (35) provided on the frame (31).

2. The steel-shell flange spiral disc making device according to claim 1, characterized in that: The heating support mechanism (2) includes a support frame (21), on which a bottom roller (22), a pair of guide wheels (23) and a pair of guide plates (24) are provided. The bottom roller (22) is rotatably mounted on the support frame (21) through a bottom plate wheel seat (25), and a positioning ring groove is provided on the bottom roller (22).

3. The steel-shell flange spiral disc making device according to claim 2, characterized in that: The guide wheel pair (23) includes two guide wheels (231) arranged symmetrically on the left and right, and the guide wheels (231) are vertically rotatably mounted on the support frame (21); the guide plate pair (24) includes two guide plates (241) arranged symmetrically on the left and right, with a clamping gap between the two guide wheels (231) and a guiding gap between the two guide plates (241).

4. The steel-shell flange spiral disc making device according to any one of claims 1 to 3, characterized in that: The power wheel (13) includes a first power wheel (131), a second power wheel (132) and a third power wheel (133). The first power wheel (131), the second power wheel (132) and the third power wheel (133) are all connected to the fixed frame (15) through the main shaft (14). The fixed frame (15) is fixed to the support (11). The drive mechanism drives the first power wheel (131), the second power wheel (132) and the third power wheel (133) to rotate synchronously.

5. The steel shell flange spiral disc making device according to claim 4, characterized in that: The main shaft (14) includes a first main shaft (141), a second main shaft (142) and a third main shaft (143). The first power wheel (131) is fixed on the first main shaft (141), the second power wheel (132) is fixed on the second main shaft (142), and the third power wheel (133) is fixed on the third main shaft (143). The first main shaft (141), the second main shaft (142) and the third main shaft (143) are rotatably connected to the corresponding fixed frame (15) through bearings.

6. The steel shell flange spiral disc making device according to claim 5, characterized in that: The drive mechanism includes a motor (16) mounted on a bracket (11). The motor (16) drives the first main shaft (141) to rotate via a first chain drive (17). A second chain drive (18) is provided between the first main shaft (141) and the second main shaft (142). A third chain drive (19) is provided between the second main shaft (142) and the third main shaft (143). The inner wall of the fixed frame (15) is provided with symmetrically arranged U-shaped frames (110), and the opening side of the U-shaped frame (110) is provided with several auxiliary rollers (111).

7. The steel shell flange spiral disc making device according to any one of claims 1 to 3 and 6, characterized in that: The mold assembly (32) includes a mold support (321) rotatably mounted on the frame (31), the mold support (321) being connected to a pressure mold motor (37) mounted on the frame (31), a circular mold (322) being mounted on the mold support (321), a mold core (323) being mounted inside the mold support (321), the mold core (323) being connected to a top core cylinder (324) mounted on the frame (31), and the mold core (323) being coaxially mounted with the circular mold (322); a guide block (325) and a guide positioning groove (326) are provided at the feed port of the circular mold (322).

8. The steel shell flange spiral disc making device according to claim 7, characterized in that: The mold support (321) has a cylindrical structure. A circular mold (322) is fixedly mounted at the front end of the mold support (321), and a rear support (327) is fixedly mounted at the rear end. The rear support (327) is connected to the frame (31) through a bearing bracket (3212). A first bearing (3213) is provided between the rear support (327) and the bearing bracket (3212). A driven pulley (328) is provided at the rear end of the rear support (327). The pressing motor (37) is equipped with a main... The driving pulley (329) and the driven pulley (328) are driven by a belt. The mold core (323) is connected to the inner wall of the mold support (321) by a spline. A second bearing (3214) is provided between the mold core (323) and the bearing seat (3210). The piston rod of the top core cylinder (324) is connected to the bearing seat (3210), and the top core cylinder (324) is fixed on the frame (31) by the cylinder support (3211).

9. The steel-shell flange spiral disc making device according to claim 1 or 8, characterized in that: The pressure roller assembly (33) includes a pressure roller shaft (332) and a circular pressure roller (331) fixed at the end of the pressure roller shaft (332). The pressure roller shaft (332) is connected to the base (34) through a plate frame (333). The pressure roller shaft (332) is rotatably connected to the plate frame (333) through a bearing.

10. The steel shell flange spiral disc making device according to claim 9, characterized in that: A connecting block (341) is provided at one end of the base (34), and a telescopic cylinder (36) is hinged on the connecting block (341). The cylinder body of the telescopic cylinder (36) is hinged on the frame (31).

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