A pressure cooker machine for manufacturing iron pans and its manufacturing method

Abstract

The present invention relates to the technical field of machining, and discloses a pot pressing machine for iron pot manufacturing and its manufacturing method. Two hydraulic chambers are opened at the bottom of the hydraulic head, and two pressing heads are respectively sleeved. A placement rack is fixedly installed at the position between the support and the ball mold on the top of the machine base. A pressing plate is movably installed inside the placement rack. The top end of the sliding support rod is fixedly installed with an adjusting block. A rotating wheel is movably installed at the end of the hydraulic slider. A hydraulic hose is fixedly connected between the outer end of the adjusting block and the outside of the hydraulic device. The bottom end of the hydraulic slider is designed with two clamping plates, and a rotating shaft is fixedly installed between the two clamping plates. A group of magnetic poles are symmetrically installed at the middle circle position inside the rotating wheel. Through the design of the two pressing heads and the rotating wheel, and the rotating shaft is set to be conical and a rectangular coil is fixedly installed inside, the stability and pressing quality during the pressing and forming of the iron pot are improved, and the efficiency is also improved.

Description

Technical Field

[0001] The present invention relates to the technical field of machining, and specifically to a pot pressing machine for making iron pots and a manufacturing method thereof. Background Art

[0002] Iron pots are necessities in daily life. Therefore, the market demand for iron pots is large, so a large amount of rapid production is required. The structure of the iron pot itself is also simple, consisting of a circular arc-shaped pot body and a pot handle. The main part to be manufactured is the pot body. In the prior art, a pot pressing machine is mostly used to bend a circular iron plate to form an arc-shaped pot body. The use of the pot pressing machine is very convenient. Only need to place the circular iron plate on the spherical mold, clamp it and rotate it, and at the same time use a rotating wheel to press the iron plate along the outer circle from the top position of the spherical mold, and press the iron plate onto the surface of the spherical mold to form an arc-shaped pot body. Although it is widely used, there are still certain problems:

[0003] When the existing pot pressing machine is in use, a stop frame is used to block it and then the circular iron plate is placed. Then, the pressing head in the pressing device is used to press the center position of the iron plate onto the spherical mold to fix and shape the top first. Then, the rotating wheel is driven to press along the outer circle of the spherical mold. First, directly pressing and then performing the pressing of the rotating wheel on the spherical mold will cause an uneven arc at the starting point of the pressing of the pressing head and the rotating wheel, thus affecting the forming quality of the pot body. Secondly, directly fixing the middle part of the disc and rotating and pressing unilaterally with the outer circle not moving will cause certain twists and turns at the outer circle of the circular iron plate, resulting in different internal stresses in each part during subsequent pressing, further affecting the quality of the iron pot;

[0004] During the pressing process of the circular iron plate, it mainly relies on the pressure of the rotating wheel on it. However, the rotating wheels are all sleeved on one end of a tool bar in a movable manner, which causes insufficient stability when the rotating wheels rotate. And the rotating wheels are always in a pressing contact state with the circular iron plate and are also rotating, resulting in serious wear on the outer circle of the rotating wheels. And because the force direction of the rotating wheels is not perpendicular or parallel to the axis center line of their rotating shafts, it also causes serious wear at their rotating shafts. Once the rotating wheels are severely worn and still continue to be used, it will lead to poor quality of the formed pot body. Therefore, the working condition of the rotating wheels needs to be monitored for adaptive replacement. Summary of the Invention

[0005] In view of the deficiencies of the above background art, the present invention provides a pot pressing machine for making iron pots, which has the advantage of good forming quality and solves the problems raised in the background art.

[0006] The present invention provides the following technical solution: A pressure cooker machine for iron pot manufacturing, including a machine base. On the front and back of the top of the machine base, brackets are symmetrically and fixedly installed. Between the side edges of the tops of the brackets, a hydraulic head is fixedly installed. In the middle of the interior of the machine base, a motor is fixedly installed. In the middle of the top surface of the machine base, a ball mold with its bottom fixedly connected to the output shaft of the motor is movably installed. In the middle circle at the bottom of the hydraulic head, a first hydraulic cavity is opened. Inside the first hydraulic cavity, a first pressure head is movably sleeved. At the central position at the bottom of the hydraulic head, a second hydraulic cavity is opened. Inside the second hydraulic cavity, a second pressure head is movably sleeved. At the top of the hydraulic head, a hydraulic device is fixedly installed. On the top of the machine base, at the position between the brackets and the ball mold, a placement rack is fixedly installed. Inside the placement rack, a pressure plate is movably installed. At the top of both sides of the machine base, hydraulic sliding holes are opened. At the top of the hydraulic sliding holes, sliding support rods are movably sleeved. At the top end of the sliding support rods, an adjustment block is fixedly installed. On the side of the adjustment block close to the ball mold, a sliding groove is opened. Inside the sliding groove, a hydraulic sliding block is movably sleeved. At the end of the hydraulic sliding block, a rotating wheel is movably installed.

[0007] Preferably, an arc-shaped magnet is fixedly installed inside the ball mold. A hydraulic hose is fixedly connected between the outer end of the adjustment block and the outside of the hydraulic device. Arc grooves are opened at the bottoms of the first pressure head and the second pressure head, and the curvature of the arc grooves is exactly the same as the arc curvature of the ball mold at the corresponding bottom.

[0008] Preferably, the placement rack is designed in an L shape and the pressure plate is installed inside it. A roller is movably installed in the middle of the pressure plate. A sliding hole is opened at the top inside the placement rack, and at the top of the sliding hole, a guiding column fixedly connected to the bottom of the pressure plate is movably sleeved. A return spring is fixedly installed on the outer circle of the guiding column. The inner circle at the top of the pressure plate is formed into an arc chamfer.

[0009] Preferably, the bottom end of the hydraulic sliding block is designed with two clamping plates, and a rotating shaft is fixedly installed between the two clamping plates. The rotating wheel is movably sleeved on the outer circle of the rotating shaft. A group of magnetic poles are symmetrically installed at the middle circle position inside the rotating wheel. A rectangular coil is fixedly installed in the middle of the rotating shaft.

[0010] Preferably, the hydraulic sliding holes, the first hydraulic cavity, the second hydraulic cavity, and the inside of the sliding groove are all filled with hydraulic oil. The hydraulic device controls the mutual flow of the hydraulic oil inside the sliding groove and the hydraulic oil in the first hydraulic cavity. The first pressure head is in a contracted state when the rotating wheel rotates the mold.

[0011] Preferably, the center of the rectangular coil and the centers of the two magnetic poles are on the same plane. The rotating shaft is in a conical structure, and the end with a smaller diameter is at the top position. The rectangular coil is connected to a circuit on the hydraulic sliding block, and an alarm is installed in the circuit.

[0012] Preferably, the manufacturing steps are as follows:

[0013] S1. Place the circular iron plate on the top surface of the pressure plate. Start the device and drive the first punch and the second punch downward through the hydraulic device to press the center of the iron plate onto the top of the ball mold. At the same time, press the pressure plate downward by a certain position to ensure that the circular iron plate fits its surface.

[0014] S2. The hydraulic device controls the first punch to retract into the first hydraulic chamber. At the same time, transmit the hydraulic pressure to the inside of the chute through the hydraulic hose, and push the hydraulic slider to drive the rotating wheel to reach the top position of the circular iron plate.

[0015] S3. The motor drives the ball mold to rotate. The second punch and the circular iron plate rotate synchronously, and the hydraulic system controls the sliding support rod to slide into the hydraulic slide hole. Driven by the sliding support rod, the rotating wheel presses and forms the circular iron plate along the outer ring of the ball mold.

[0016] The present invention has the following beneficial effects:

[0017] 1. By setting two punches, an inner punch and an outer punch, on the hydraulic head, and setting a placement rack at the top of the machine base and cooperating with two rotating wheels. Compared with the prior art, place the circular iron plate on the placement rack, and then use the two punches to press and position the circular iron plate conveniently and stably. During work, retract the outer punch, and then drive the hydraulic sliders on both sides through the hydraulic pressure to drive the rotating wheels to reach the surface of the circular iron plate, and use the rotating rotating wheels on both sides to press the circular iron plate synchronously, ensuring a stable state of the outer circle of the circular iron plate. At the same time, it can also start rotating and pressing from the positioning and pressing position, ensuring better uniformity of pressing and the forming quality of the iron pot.

[0018] 2. By movably sleeving the hydraulic slider inside the adjusting block, and movably installing a rotating wheel in the middle of the bottom end of the hydraulic slider, and setting magnetic poles inside the hydraulic slider. Compared with the prior art, installing the rotating wheel in the middle position of the hydraulic slider can play a limiting role on both sides. At the same time, the rotating shaft sleeved by the rotating wheel is conical, so that the force that is not parallel and not perpendicular to its axis received by the rotating wheel can be shared, thereby reducing the frictional pressure on the rotating shaft, and further improving its service life. At the same time, use the magnetic induction generated between the magnetic pole and the rectangular coil when the hydraulic slider rotates to control the alarm, further realizing the monitoring of the working wear condition of the rotating wheel, and improving the manufacturing efficiency and quality of the pot body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a half-sectional view of the placement rack of the structure of the present invention;

[0021] Figure 3This is the overall half-sectional view of the structure of the present invention;

[0022] Figure 4 This is the partial half-sectional view of the structure of the present invention;

[0023] Figure 5 This is the front sectional view of the structure of the present invention;

[0024] Figure 6 is Figure 2 the enlarged view of part A in

[0025] Figure 7 is Figure 5 the enlarged view of part B in

[0026] In the figure: 1. Machine base; 101. Hydraulic sliding hole; 2. Bracket; 3. Hydraulic head; 301. First hydraulic cavity; 302. Second hydraulic cavity; 4. Ball die; 5. Motor; 6. First punch; 7. Second punch; 8. Hydraulic device; 9. Placing rack; 10. Pressure plate; 11. Sliding support rod; 12. Adjusting block; 1201. Chute; 13. Hydraulic slider; 14. Rotary wheel; 15. Hydraulic hose; 16. Arc magnet; 17. Roller; 18. Guide post; 19. Return spring; 20. Rotating shaft; 21. Rectangular coil; 22. Magnetic pole. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to the attached Figure 1 - attached Figure 5, A pressure cooker machine for making iron pots, including a machine base 1. On the front and back of the top of the machine base 1, brackets 2 are symmetrically and fixedly installed. Between the side edges of the tops of the brackets 2, a hydraulic head 3 is fixedly installed. In the middle of the inside of the machine base 1, a motor 5 is fixedly installed. In the middle of the top surface of the machine base 1, a spherical mold 4 with its bottom fixedly connected to the output shaft of the motor 5 is movably installed. In the middle circle at the bottom of the hydraulic head 3, a first hydraulic cavity 301 is opened. Inside the first hydraulic cavity 301, a first pressing head 6 is movably sleeved. At the central position at the bottom of the hydraulic head 3, a second hydraulic cavity 302 is opened. Inside the second hydraulic cavity 302, a second pressing head 7 is movably sleeved. At the top of the hydraulic head 3, a hydraulic device 8 is fixedly installed. On the top of the machine base 1, at the position between the brackets 2 and the spherical mold 4, a placement rack 9 is fixedly installed. Inside the placement rack 9, a pressing plate 10 is movably installed. At the top of both sides of the machine base 1, hydraulic sliding holes 101 are opened. At the top of the hydraulic sliding holes 101, sliding support rods 11 are movably sleeved. At the top end of the sliding support rods 11, an adjusting block 12 is fixedly installed. On the side of the adjusting block 12 close to the spherical mold 4, a sliding groove 1201 is opened. Inside the sliding groove 1201, a hydraulic sliding block 13 is movably sleeved. At the end of the hydraulic sliding block 13, a rotating wheel 14 is movably installed. Two groups of rotating wheels 14 are arranged on both sides respectively. In this way, when pressing, the two sides of the circular iron plate are more evenly stressed, which is more conducive to the uniform forming of the pot body along the spherical mold 4. Inside the spherical mold 4, an arc-shaped magnet 16 is fixedly installed. The arc-shaped magnet 16 can play an adsorption role. As more and more of the circular iron plate is pressed on the surface of the spherical mold 4, the adsorption force of the arc-shaped magnet 16 on it increases, which also increases the stability during the forming of the pot body. Between the outer end of the adjusting block 12 and the outside of the hydraulic device 8, a hydraulic hose 15 is fixedly connected. At the bottom of the first pressing head 6 and the second pressing head 7, arc grooves are opened, and the curvature of the arc grooves is exactly the same as the arc curvature of the spherical mold 4 at the corresponding bottom. Under the action of the hydraulic device 8, the first pressing head 6 and the second pressing head 7 are driven to press down to the top position of the spherical mold 4 at the same time, so that the circular iron plate can be positioned first, and then the first pressing head 6 is retracted and the rotating wheel 14 is used to press from this position. In this way, it can effectively avoid the situation that the forming arc is uneven because the spherical mold 4 cannot press from the edge of the pressing. The hydraulic sliding holes 101, the first hydraulic cavity 301, the second hydraulic cavity 302, and the inside of the sliding groove 1201 are all filled with hydraulic oil. The hydraulic device 8 controls the mutual flow of the hydraulic oil in the sliding groove 1201 and the hydraulic oil in the first hydraulic cavity 301. When the rotating wheel 14 rotates to press the mold, the first pressing head 6 is in a contracted state. The hydraulic control is more accurate and fast, and at the same time, the force provided by the hydraulic pressure is greater and more stable. When working, when the first pressing head 6 is retracted, the hydraulic oil in the first hydraulic cavity 301 will enter the sliding groove 1201, pushing the hydraulic sliding block 13 to drive the rotating wheel 14 to move towards the circular iron plate. In this way, it can just realize that the spherical mold 4 continues to press from the position where the first pressing head 6 presses, thereby improving the forming quality of the pot body.

[0029] Please refer to the attached Figure 1 - attachedFigure 2 , attached Figure 6 , the placement rack 9 is designed in an L shape and the pressing plate 10 is installed inside it. A roller 17 is movably installed in the middle of the pressing plate 10. A sliding hole is opened at the top inside the placement rack 9, and a guiding column 18 fixedly connected to the bottom of the pressing plate 10 is movably sleeved at the top of the sliding hole. A return spring 19 is fixedly installed on the outer circle of the guiding column 18. The inner circle at the top of the pressing plate 10 is formed into an arc chamfer. When the circular iron plate is placed on the top of the pressing plate 10, it can just fit and be placed down. Then, when pressing down by the first pressing head 6 and the second pressing head 7, the whole circular iron plate is driven to press on the surface of the pressing plate 10. In this way, in the previous stage of pressing, the pressing plate 10 is always used to stably limit the circular iron plate. And as the pressing progresses, the pot body has been gradually stabilized. At this time, as the circular iron plate fits onto the outer circle of the spherical mold 4, its outer side is separated from the pressing plate 10.

[0030] Please refer to the attachment Figure 3 -attachment Figure 5 , attached Figure 7 , the bottom end of the hydraulic slider 13 is designed with two clamping plates, and a rotating shaft 20 is fixedly installed between the two clamping plates. The rotating wheel 14 is movably sleeved on the outer circle of the rotating shaft 20. A group of magnetic poles 22 are symmetrically installed at the middle circle position inside the rotating wheel 14. A rectangular coil 21 is fixedly installed in the middle of the rotating shaft 20. The center of the rectangular coil 21 and the centers of the two magnetic poles 22 are in the same plane. The rotating shaft 20 is in a conical structure, and the end with a smaller diameter is at the top position. The rotating shaft 20 is used to transfer the force on the rotating wheel 14 that is neither parallel nor perpendicular to its axis, thereby reducing the wear force of the rotating wheel 14 on the rotating shaft 20 and improving the service life. The rectangular coil 21 is connected to a circuit on the hydraulic slider 13, and an alarm is installed in the circuit. When the rotating wheel 14 rotates, it drives the magnetic poles 22 to rotate, while the rotating shaft 20 and the rectangular coil 21 are fixed on the hydraulic slider 13 and do not move. In this way, when the rotating wheel 14 rotates, it generates a magnetic induction line cutting inside the rectangular coil 21, and then generates an electric current effect. Through integration, it is applied to the circuit and cooperates with the alarm to work. When the rotating wheel 14 is severely worn or fails, the current will decrease, thereby triggering the alarm to remind the staff to stop the machine for maintenance and replacement.

[0031] The die-casting steps are as follows:

[0032] S1. Place the circular iron plate on the top surface of the pressing plate 10, start the equipment, and drive the first pressing head 6 and the second pressing head 7 to move downward through the hydraulic device 8 to press the center of the iron plate onto the top position of the spherical mold 4. At the same time, the pressing plate 10 will be pressed downward by a certain position to ensure that the circular iron plate fits its surface;

[0033] S2. The hydraulic device 8 controls the first punch 6 to retract into the first hydraulic chamber 301. Meanwhile, hydraulic pressure is transmitted through the hydraulic hose 15 into the chute 1201, pushing the hydraulic slider 13 to drive the rotating wheel 14 to abut against the top position of the circular iron plate.

[0034] S3. The motor 5 drives the spherical mold 4 to rotate. The second punch 7 and the circular iron plate rotate synchronously, and the hydraulic system controls the sliding support rod 11 to slide into the hydraulic slide hole 101. Driven by the sliding support rod 11, the rotating wheel 14 presses and forms the circular iron plate along the outer circle of the spherical mold 4.

[0035] Working principle: First, place the circular iron plate workpiece to be pressed onto the top position of the pressure plate 10. Then start the equipment, and the hydraulic device 8 drives the first punch 6 and the second punch 7 to move downward synchronously until the first punch 6 and the second punch 7 press the center of the circular iron plate onto the top outer circle of the spherical mold 4. Then, the hydraulic device 8 controls the hydraulic pressure inside the first hydraulic chamber 301 to flow along the hydraulic hose 15 into the chute 1201. At this time, the hydraulic pressure inside the first hydraulic chamber 301 decreases, causing the first punch 6 to contract inward. Meanwhile, the hydraulic slider 13 slides outward along the chute 1201 under the action of hydraulic pressure, and then drives the rotating wheel 14 to move towards the top of the circular iron plate and exactly move to the position pressed by the first punch 6.

[0036] Start the motor 5 to drive the spherical mold 4 to rotate. At the same time, the spherical mold 4, the second punch 7, and the circular iron plate rotate together. When the spherical mold 4 rotates, the hydraulic system controls the hydraulic pressure in the hydraulic slide hole 101 to drive the sliding support rod 11 to contract into the hydraulic slide hole 101. At this time, the rotating wheel 14 presses the circular iron plate onto the outer surface of the spherical mold 4 to form an arc shape. When the rotating wheel 14 presses the circular iron plate, the part of its outer circle located at the top of the pressure plate 10 becomes less and less until it slides off the top of the pressure plate 10. At this time, it means that half of the pot body has been formed and it is relatively stable as a whole, so there is no need for restriction.

[0037] At the same time, when the rotating wheel 14 presses the circular iron plate, it will rotate along the surface of the circular iron plate. When the rotating wheel 14 rotates, it will drive the magnetic pole 22 to continuously rotate outside the rectangular coil 21. Since the rotating shaft 20 and the rectangular coil 21 are fixed, a stable current will be generated inside the rectangular coil 21. Moreover, when the rotating wheel 14 rotates uniformly along the surface of the circular iron plate, the alarm does not sound. When the outer circle of the rotating wheel 14 is severely worn or the socket joint with the rotating shaft 20 is severely worn, its rotation speed will decrease, resulting in a decrease in the current in the alarm circuit, and then triggering the alarm to remind the staff to stop the machine for inspection and replace the rotating wheel 14 to ensure the normal operation of the pressure cooker.

[0038] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pot pressing machine for iron pot manufacturing, including a machine base (1), characterized in that: On the front and back of the top of the machine base (1), brackets (2) are symmetrically and fixedly installed. Between the side edges of the top of the brackets (2), a hydraulic head (3) is fixedly installed. In the middle of the interior of the machine base (1), a motor (5) is fixedly installed. In the middle of the top surface of the machine base (1), a ball mold (4) is movably installed, and the bottom of which is fixedly connected to the output shaft of the motor (5). In the middle circle at the bottom of the hydraulic head (3), a first hydraulic cavity (301) is formed. Inside the first hydraulic cavity (301), a first pressure head (6) is movably sleeved. At the central position of the bottom of the hydraulic head (3), a second hydraulic cavity (302) is formed. Inside the second hydraulic cavity (302), a second pressure head (7) is movably sleeved. At the top of the hydraulic head (3), a hydraulic device (8) is fixedly installed. On the top of the machine base (1), at the position between the brackets (2) and the ball mold (4), a placement rack (9) is fixedly installed. Inside the placement rack (9), a pressure plate (10) is movably installed. On the top of both sides of the machine base (1), hydraulic sliding holes (101) are formed. At the top of the hydraulic sliding holes (101), sliding support rods (11) are movably sleeved. At the top end of the sliding support rods (11), an adjusting block (12) is fixedly installed. On the side of the adjusting block (12) close to the ball mold (4), a sliding groove (1201) is formed. Inside the sliding groove (1201), a hydraulic slider (13) is movably sleeved. At the end of the hydraulic slider (13), a rotating wheel (14) is movably installed.

2. The pot pressing machine for iron pot manufacturing according to claim 1, characterized in that: Inside the ball mold (4), an arc magnet (16) is fixedly installed. Between the outer end of the adjusting block (12) and the outside of the hydraulic device (8), a hydraulic hose (15) is fixedly connected. At the bottom of the first pressure head (6) and the second pressure head (7), arc grooves are formed, and the curvature of the arc grooves is exactly the same as the arc curvature of the ball mold (4) at the corresponding bottom.

3. The pot pressing machine for iron pot manufacturing according to claim 1, characterized in that: The placement rack (9) is designed in an L shape, and the pressure plate (10) is installed inside it. In the middle of the pressure plate (10), a roller (17) is movably installed. At the top of the inner side of the placement rack (9), a sliding hole is formed, and at the top of the sliding hole, a guiding column (18) fixedly connected to the bottom of the pressure plate (10) is movably sleeved. On the outer circle of the guiding column (18), a reset spring (19) is fixedly installed. At the inner circle of the top of the pressure plate (10), an arc chamfer is formed.

4. The pot pressing machine for iron pot manufacturing according to claim 1, characterized in that: The bottom end of the hydraulic slider (13) is designed with two clamping plates, and between the two clamping plates, a rotating shaft (20) is fixedly installed. The rotating wheel (14) is movably sleeved on the outer circle of the rotating shaft (20). At the middle circle position inside the rotating wheel (14), a group of magnetic poles (22) are symmetrically installed. At the middle of the rotating shaft (20), a rectangular coil (21) is fixedly installed.

5. The pot pressing machine for iron pot manufacturing according to claim 1, characterized in that: Inside the hydraulic sliding holes (101), the first hydraulic cavity (301), the second hydraulic cavity (302), and the sliding groove (1201), hydraulic oil is filled. The hydraulic device (8) controls the mutual flow of the hydraulic oil inside the sliding groove (1201) and the hydraulic oil in the first hydraulic cavity (301). When the rotating wheel (14) rotates to press the mold, the first pressure head (6) is in a contracted state.

6. The pot pressing machine for iron pot manufacturing according to claim 4, characterized in that: The center of the rectangular coil (21) is in the same plane as the centers of the two magnetic poles (22). The shaft (20) has a conical structure with the smaller-diameter end at the top position. The rectangular coil (21) is connected to a circuit on the hydraulic slider (13), and an alarm is installed in the circuit.

7. An iron pot manufacturing method, which uses the pot pressing machine for iron pot manufacturing according to any one of claims 1-6, characterized in that: The manufacturing steps are as follows: S1. Place the circular iron plate on the top surface of the pressure plate (10). Start the device and drive the first punch (6) and the second punch (7) downward by the hydraulic device (8) to press the center of the iron plate onto the top of the ball mold (4). At the same time, press the pressure plate (10) downward by a certain position to ensure that the circular iron plate fits its surface. S2. The hydraulic device (8) controls the first punch (6) to retract into the first hydraulic chamber (301). At the same time, transmit hydraulic pressure to the inside of the chute (1201) through the hydraulic hose (15), and push the hydraulic slider (13) to drive the rotating wheel (14) to abut against the top of the circular iron plate. S3. The motor (5) drives the ball mold (4) to rotate. The second punch (7) and the circular iron plate rotate synchronously, and the hydraulic system controls the sliding support rod (11) to slide into the hydraulic slide hole (101). The rotating wheel (14) is driven by the sliding support rod (11) to press and form the circular iron plate along the outer circle of the ball mold (4).

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