Winding disc and manufacturing process thereof

Abstract

The invention discloses a winding disc and a manufacturing process thereof, and the winding disc comprises two disc bodies which are oppositely arranged along the axial direction; two ends of the shaft tube are respectively arranged on the inner side of the disc body, and the disc body and the shaft tube are both plastic products; a metal framework is embedded in each disc body. The invention provides the coil stock disc which can reduce the overall weight under the condition of ensuring the strength of the coil stock disc and the manufacturing process of the coil stock disc.

Description

Technical Field

[0001] The present invention relates to the technical field of coil structures, and particularly to a coil reel and its manufacturing process. Background Art

[0002] Strip-shaped metal materials, such as raw materials and processed materials of metal terminals, are generally stored and transported through coil reels. The current coil reel structure usually includes two iron discs with blind holes and a shaft tube. The two iron discs are respectively fixed at both ends of the shaft tube perpendicular to the axis of the shaft tube, and the blind holes of the two iron discs communicate with the lumen of the shaft tube for inserting a support shaft, so that after the coil reel is inserted with the support shaft, it can rotate along the support shaft. Since the iron discs are relatively heavy, the overall weight of the coil reel is relatively large, which is not convenient for transportation.

[0003] According to the prior art, there is a coil reel with a publication number of CN103771193A, which includes an iron disc with a blind hole, a shaft tube, and a set of retaining rods. The iron disc is fixed at one end of the shaft tube perpendicular to the axis of the shaft tube, and the blind hole on the iron disc communicates with the lumen of the shaft tube. The retaining rods are evenly fixed on the outer wall of the other end of the shaft tube in a radial pattern, and the plane formed by all the retaining rods is perpendicular to the axis of the shaft tube. Although the function of one iron disc is replaced by a set of retaining rods, reducing the overall weight of the coil reel, the retaining rods also affect the strength of the coil reel. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned defects of the prior art and provide a coil reel and its manufacturing process that can reduce the overall weight while ensuring the strength of the coil reel.

[0005] To achieve the above object, the technical solution of the present invention is: A coil reel, which includes:

[0006] Two disc bodies, arranged opposite to each other in the axial direction;

[0007] A shaft tube, with both ends respectively arranged on the inner sides of the disc bodies, and the disc bodies and the shaft tube are integrally injection-molded;

[0008] Metal skeletons are embedded on both of the disc bodies.

[0009] After adopting the above structure, the present invention has the following advantages compared with the prior art: Both the disc bodies and the shaft tube are plastic products. The plastic products replace the iron discs, greatly reducing the overall weight of the coil reel and having a low cost; Metal skeletons are embedded on the disc bodies, ensuring the strength of the entire coil reel.

[0010] Preferably, the metal skeleton includes:

[0011] The first circle;

[0012] The second circle, the diameter of the first circle is greater than that of the second circle, the first circle and the second circle are concentrically arranged and the second circle is located inside the first circle;

[0013] At least one support rod, one end of the support rod is connected to the first circle, and the other end of the support rod is connected to the second circle, with a simple structure and high strength.

[0014] Preferably, at least one of the support rods is provided with a plastic buckle for guiding materials during injection molding.

[0015] Preferably, blind holes are provided on the outer side of the disc body, and the rotating shaft is arranged in the blind holes, and the rotating shaft is rotationally matched with the equipment by means of the rotating shaft.

[0016] Preferably, the rotating shaft is made of metal, and the rotating shaft is embedded in the blind hole, with high strength and long service life.

[0017] Preferably, it further includes a mounting plate. At least one of the disc bodies is provided with a mounting hole communicated with the inside of the shaft tube on the outer side corresponding to the shaft tube, the mounting plate is detachably connected in the mounting hole, and the blind hole is arranged on the mounting plate, which is convenient for injection molding.

[0018] A manufacturing process for manufacturing the coiling reel according to any one of the above, which includes the following steps:

[0019] I. Heating: Heating the metal skeleton;

[0020] II. Skeleton installation: Installing the plastic buckle on the metal skeleton;

[0021] III. Skeleton placement: Placing the metal skeleton into the injection mold;

[0022] IV. Injection molding: Forming the coiling reel in the injection mold;

[0023] V. Shaping: Using a shaping mechanism to shape the formed coiling reel.

[0024] Preferably, the injection mold includes:

[0025] The upper mold, the bottom surface of the upper mold is provided with a first cavity for forming the upper surface of the coiling reel;

[0026] The lower mold, the upper surface of the lower mold is provided with a second cavity for forming the bottom surface of the coiling reel;

[0027] The mold core;

[0028] The sliding seats are respectively located on the left and right sides of the mold core. The side surface of the sliding seat close to the mold core is provided with a third cavity, and the third cavity and the outer side surface of the mold core are used for forming the shaft tube.

[0029] Preferably, the first cavity includes:

[0030] The first annular groove;

[0031] The second annular groove;

[0032] The third annular groove;

[0033] The fourth annular groove, wherein the first annular groove, the second annular groove, the third annular groove and the fourth annular groove are concentrically arranged and distributed in sequence from outside to inside;

[0034] The connecting groove is used for forming the reinforcing ribs on the coil reel. One end of the connecting groove communicates with the first annular groove, and the other end of the connecting groove sequentially passes through the second annular groove, the third annular groove and communicates with the fourth annular groove;

[0035] When the metal skeleton is placed in the first cavity, the first ring is located in the second annular groove, the second ring is located in the third annular groove, and the support rod is located in the connecting groove, which can not only form the reinforcing ribs but also place the metal skeleton.

[0036] Preferably, the shaping mechanism includes;

[0037] The upper shaping frame, which includes a first plate, a second plate and a connecting rod. The first plate and the second plate are oppositely arranged. One end of the connecting rod is connected to the first plate, and the other end of the connecting rod is connected to the second plate. An arc-shaped groove for clamping on the shaft tube is provided at one end of the first plate close to the shaft tube and one end of the second plate close to the shaft tube;

[0038] The lower shaping frame, which is symmetrical with the upper shaping frame about the axis of the shaft tube;

[0039] During shaping, the first plate and the second plate respectively abut against the inner side of the disc body, and the disc body is shaped by the first plate and the second plate. Description of the Drawings

[0040] Figure 1 It is the front view cross-sectional view of a coil reel of the present invention.

[0041] Figure 2 It is the three-dimensional view of a coil reel of the present invention.

[0042] Figure 3 It is the three-dimensional view of the rotating shaft of a coil reel of the present invention.

[0043] Figure 4 It is the front view of the metal skeleton of a coil reel of the present invention.

[0044] Figure 5 It is the three-dimensional view of the plastic buckle of a coil reel of the present invention.

[0045] Figure 6 It is the front view cross-sectional view of the injection mold for the manufacturing process of a coil reel of the present invention.

[0046] Figure 7 is a perspective view of the upper die of a manufacturing process for a coiling reel of the present invention.

[0047] Figure 8 is a front view of a shaping mechanism of a manufacturing process for a coiling reel of the present invention.

[0048] Figure 9 is a front view of the working state of a shaping mechanism of a manufacturing process for a coiling reel of the present invention.

[0049] Figure 10 is a right view of a shaping mechanism of a manufacturing process for a coiling reel of the present invention.

[0050] Figure 11 is a right view of the working state of a shaping mechanism of a manufacturing process for a coiling reel of the present invention.

[0051] Among them, 1. Disc body, 110. Blind hole, 111. Rotating shaft, 120. Mounting hole, 130. Reinforcing rib, 2. Shaft tube, 3. Metal skeleton, 310. First ring, 320. Second ring, 330. Support rod, 331. Plastic buckle, 4. Mounting plate, 5. Upper die, 510. First cavity, 511. First annular groove, 512. Second annular groove, 513. Third annular groove, 514. Fourth annular groove, 515. Connecting groove, 6. Lower die, 610. Second cavity, 7. Die core, 8. Slide seat, 510. Third cavity, 9. Upper shaping frame, 10. Lower shaping frame, 11. Arc groove, 12. Shaping frame, 13. Arc-shaped groove. Specific embodiments

[0052] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0053] Figure 1 is a front cross-sectional view of a coiling reel of the present invention, Figure 2 is a perspective view of a coiling reel of the present invention. As in Figure 1 and 2 the embodiment shown, the present invention provides a coiling reel, including two disc bodies 1 and a shaft tube 2. The disc bodies 1 are arranged oppositely along the axial direction of the shaft tube 2. The shaft tube 2 is located between the two disc bodies 1. One end of the shaft tube 2 is connected to the inner side surface of one of the disc bodies 1, and the other end of the shaft tube 2 is connected to the inner side surface of the other disc body 1. Specifically, in order to reduce the weight of the entire coiling reel, both the disc bodies 1 and the shaft tube 2 are made of plastic products; in order not to affect the rotation of the disc bodies 1 on the equipment, metal skeletons 3 are embedded in the disc bodies 1, ensuring the strength of the disc bodies 1 and enabling the disc bodies 1 to rotate on the equipment for a long time. Specifically, the disc bodies 1 and the shaft tube 2 are an integral body, facilitating integral injection molding. Specifically, the shaft tube 2 is hollow.

[0054] As an embodiment, the metal framework 3 is embedded inside the disk body 1, so as to ensure the strength of the disk body 1. Specifically, the metal framework 3 is coaxially arranged with the disk body 1, so that the disk body 1 is uniformly stressed and has high strength.

[0055] As an embodiment, in order to facilitate the rotation and cooperation of the disk body 1 on the device, blind holes 110 are provided on the outer side surface of the disk body 1. One end of the rotating shaft 111 is arranged in the blind hole 110, and the other end of the rotating shaft 111 protrudes from the outer side surface of the disk body 1. The rotating shaft 111 is coaxially arranged with the shaft tube 2. The rotating shaft 111 is used for rotation and cooperation on the device. Since the whole weight of the coiling disk is lighter, there is no need to additionally provide a support shaft, and the structure is simple and the cost is low. Specifically, the rotating shaft 111 is a metal product, and the rotating shaft 111 is embedded in the disk body 1, with high strength and wear resistance. Specifically, the rotating shaft 111 is a copper product, an aluminum product or an iron product, with wear resistance and long service life. Specifically, in order to increase the contact area between the rotating shaft 111 and the disk body 1, the rotating shaft 111 is hollow, and the hollow position of the rotating shaft 111 is filled with plastic during injection molding, so that the contact area between the rotating shaft 111 and the disk body 1 is greatly increased, and the connection strength between the disk body 1 and the rotating shaft 111 is improved.

[0056] As an embodiment, it further includes a mounting plate 4. At least one of the disk bodies 1 is provided with a mounting hole 120 corresponding to the outer side surface of the shaft tube 2. The mounting plate 4 is detachably connected in the mounting hole 120, and the blind hole 110 is provided on the mounting plate 4. The mounting hole 120 communicating with the inside of the shaft tube 2 is provided. During injection molding, the material does not need to cover the entire surface of the disk body 1, reducing the injection molding time. At the same time, the mounting plate 4 is detachably connected in the mounting hole 120, which is convenient for installing and replacing the rotating shaft 111. Specifically, as Figure 2 , the mounting plate 4 is arranged on the disk body 1 located below the coiling disk. There is only one mounting plate 4 for this coiling disk, and the rotating shaft 111 above the coiling disk is directly arranged on the disk body 1; alternatively, mounting plates 4 can also be provided on both disk bodies 1, so that both rotating shafts 111 are arranged on the mounting plates 4. Specifically, the mounting plate 4 is fixed on the disk body 1 by bolts, which is convenient for installation and disassembly. Specifically, the depth of the mounting plate 4 extending into the mounting hole 120 can be set according to requirements to ensure the depth of the rotating shaft 111 embedded in the mounting plate 4, improve the reliability, and the rotating shaft 111 is not easily separated from the disk body 1.

[0057] Figure 1 is the front view sectional view of a coiling disk of the present invention, Figure 3 is the three-dimensional view of a rotating shaft of a coiling disk of the present invention, as Figure 1 and 3In the illustrated embodiment, in order to prevent the rotating shaft 111 from disengaging from the disk body 1, an annular protrusion is provided on the inner sidewall of the blind hole 110. Correspondingly, an annular groove is provided on the outer side surface of the rotating shaft 111. The annular protrusion is engaged in the annular groove to limit the rotating shaft 111, and the contact area between the rotating shaft 111 and the disk body 1 is also increased. In this way, the rotating shaft 111 is not easily disengaged, and the reliability is high.

[0058] Figure 4 is the front view of a metal skeleton of a coiling disk of the present invention, as Figure 4 In the illustrated embodiment, the metal skeleton 3 includes a first ring 310, a second ring 320, and a support rod 330. The first ring 310, the second ring 320, and the support rod 330 are all made of metal products, such as iron, copper, or aluminum. The diameter of the first ring 310 is larger than that of the second ring 320. The second ring 320 is located inside the first ring 310. One end of the support rod 330 is connected to the second ring 320, and the other end of the support rod 330 is connected to the first ring 310. The support rod 330 is used to connect the first ring 310 and the second ring 320 together to form an annular skeleton. Specifically, the number of the support rods 330 is at least one, and the support rods 330 are evenly distributed along the outer circumference of the second ring 320. The force between the first ring 310 and the second ring 320 is uniform, so that the strength of the entire metal skeleton 3 is high; multiple support rods 330 result in a high connection strength between the first ring 310 and the second ring 320.

[0059] Specifically, the first ring 310 and the second ring 320 are concentrically arranged, and the second ring 320 and the disk body 1 are coaxially arranged, so that the force on the first ring 310 and the entire disk body 1 is uniform, the strength of the disk body 1 is ensured, and the reliability is high.

[0060] Figure 5 is the perspective view of a plastic buckle of a coiling disk of the present invention, as Figure 5 In the illustrated embodiment, in order to facilitate the injection molding of the disk body 1, at least one of the support rods 330 is provided with a plastic buckle 331 for guiding the material during injection molding. The plastic buckle 331 is engaged on the support rod 330. During injection molding, the plastic buckle 331 plays a buffering role, so that the material can be smoothly introduced into the cavity, and the material is more likely to fill the entire cavity, and the injection weight is good. Specifically, the plastic buckle 331 is L-shaped. When installing, the metal skeleton 3 is first heated, and then the plastic buckle 331 is engaged on the support rod 330. After the metal skeleton 3 is heated, the plastic buckle 331 becomes soft and is more easily engaged on the support rod 330.

[0061] The principle of the present invention is that both the disk body 1 and the shaft tube 2 are plastic products. The plastic products replace the iron disk, greatly reducing the weight of the entire coiling disk and the cost. A metal skeleton 3 is embedded in the disk body 1 to ensure the strength of the entire coiling disk.

[0062] Working principle: The disk body 1 and the shaft tube 2 are integrally injection-molded. When injection-molding, the metal framework 3 is placed in the injection mold, so that the metal framework 3 is embedded in the disk body 1. Since the coiling reel mainly rotates around the disk body 1 when rotating on the equipment, the output shaft of the equipment's motor is connected to the rotating shaft 111. In this way, the motor drives the disk body 1 to rotate around the axis of the shaft tube 2. It is necessary to ensure the strength of the disk body 1, and the strength requirement of the shaft tube 2 is low. Therefore, both the disk body 1 and the shaft tube 2 are plastic products. There is a metal framework 3 embedded in the disk body 1, which not only ensures the strength of the disk body 1 but also greatly reduces the weight of the disk body 1, facilitating movement and transportation, and also greatly reducing the cost. If the rotating shaft 111 is directly embedded in the disk body 1, the rotating shaft 111 needs to be placed in the injection mold during injection-molding. If the rotating shaft 111 is embedded in the mounting plate 4, since the mounting plate 4 and the disk body 1 are injection-molded separately, the rotating shaft 111 is placed in the mold for forming the mounting plate 4.

[0063] A manufacturing process for manufacturing the coiling reel described in any one of the above, which includes the following steps:

[0064] I. Heating: Heating the metal framework 3.

[0065] II. Framework installation: Installing the plastic buckle 331 on the metal framework 3.

[0066] III. Framework placement: Placing the metal framework 3 into the injection mold.

[0067] IV. Injection molding: Molding the coiling reel in the injection mold.

[0068] V. Shaping: Using the shaping mechanism to shape the molded coiling reel.

[0069] The principle of the present invention is to integrally injection-mold the disk body 1 and the shaft tube 2, and at the same time embed the metal framework 3 in the disk body 1, which not only reduces the weight of the disk body 1 but also ensures the strength of the disk body 1; using the plastic buckle 331 to be installed on the metal framework 3 to conduct the material flow, so that the material can fill the entire injection mold; finally, using the shaping mechanism to shape the coiling reel, with high reliability.

[0070] Figure 6 It is the front view cross-sectional view of the injection mold for the coiling reel manufacturing process of the present invention. Figure 7 It is the three-dimensional view of the upper mold of the coiling reel manufacturing process of the present invention, as Figure 6 and 7In the illustrated embodiment, the injection mold includes an upper mold 5, a lower mold 6, a mold core 7, and a slide base 8. The bottom surface of the upper mold 5 is provided with a first cavity 510 for forming the upper surface of the coil reel. The upper surface of the lower mold 6 is provided with a second cavity 520 for forming the bottom surface of the coil reel. The upper mold 5 and the lower mold 6 are respectively located above and below the mold core 7. The slide bases 8 are respectively located on the left and right sides of the mold core 7, and the slide bases 8 surround the mold core 7. The side surface of the slide base 8 adjacent to the mold core 7 is provided with a third cavity 510. The third cavity 510 and the outer side surface of the mold core 7 are used for forming the shaft tube 2. The injection port is located in the middle of the upper surface of the upper mold 5. When opening the mold, the upper mold 5 is first opened, and then the cylinder is used to drive the slide base 8 away from the mold core 7. The slide base 8 is slidably engaged with the lower mold 6, and finally the formed coil reel is ejected.

[0071] As an embodiment, the first cavity 510 includes a first annular groove 511, a second annular groove 512, a third annular groove 513, and a fourth annular groove 514. The first annular groove 511, the second annular groove 512, the third annular groove 513, and the fourth annular groove 514 are concentrically arranged and distributed in sequence from the outside to the inside. The fourth annular groove 514 is coaxially arranged with the disk body 1. The first cavity 510 further includes a connecting groove 515 for forming the reinforcing rib 130 on the coil reel. One end of the connecting groove 515 communicates with the first annular groove 511, and the other end of the connecting groove 515 sequentially passes through the second annular groove 512, the third annular groove 513, and communicates with the fourth annular groove 514. The extension line of the axis of the connecting groove 515 is located on the axis of the fourth annular groove 514. When the metal framework 3 is placed in the first cavity 510, the first ring 310 is located in the second annular groove 512, the second ring 320 is located in the third annular groove 513, and the support rod 330 is located in the connecting groove 515, which can not only form the reinforcing rib 130 but also place the metal framework 3. At this time, the plastic buckle 331 abuts against the connecting groove 515, making the metal framework 3 suspended, so as to ensure that the material completely wraps the metal framework 3, making the metal framework 3 located inside the disk body 1, with high reliability and ensuring the strength of the disk body 1.

[0072] Specifically, the structure of the second cavity 610 is the same as that of the first cavity 510, and also includes a first annular groove 511, a second annular groove 512, a third annular groove 513, a fourth annular groove 514, and a connecting groove 515.

[0073] Figure 8 It is the front view of a shaping mechanism of a coil reel manufacturing process of the present invention. Figure 10 It is the right view of a shaping mechanism of a coil reel manufacturing process of the present invention, as Figure 8 and 10In the illustrated embodiment, the shaping mechanism includes an upper shaping frame 9 and a lower shaping frame 11. The upper shaping frame 9 includes a first plate 910, a second plate 920, and a connecting rod 930. The first plate 910 and the second plate 920 are arranged opposite to each other. One end of the connecting rod 930 is connected to the first plate 910, and the other end of the connecting rod 930 is connected to the second plate 920. An arc-shaped groove 10 for clamping on the shaft tube 2 is provided at one end of the first plate 910 near the shaft tube 2 and at one end of the second plate 920 near the shaft tube 2. The lower shaping frame 11 is symmetrically arranged with the upper shaping frame 9 up and down. By using the first plate and the second plate 920 to respectively abut against the inner side surface of the disc body 1, the disc body 1 is shaped, the position of the disc body 1 is corrected, and it is ensured that the disc body 1 and the shaft tube 2 are coaxial. Specifically, the shaping mechanism is made of iron products to ensure the strength of the shaping mechanism and the shaping effect. Specifically, positioning through holes are provided on the surfaces of the first plate 910 and the second plate 920, and corresponding positioning grooves are provided on the inner side surface of the disc body 1. By using a positioning pin to pass through the positioning through hole and clamp in the positioning groove, the disc body 1 can closely adhere to the first plate 910 and the second plate 920, and the upper shaping frame 9 and the lower shaping frame 11 are not easily separated from the disc body 1 and the shaft tube 2, with high reliability. Specifically, the first plate 910 and the second plate 920 are both semi-circular.

[0074] Figure 9 It is the front view of the working state of the shaping mechanism of a coiled material disc manufacturing process of the present invention. Figure 11 It is the right view of the working state of the shaping mechanism of a coiled material disc manufacturing process of the present invention, as Figure 9 and 11 In the illustrated embodiment, during shaping, the axis of the coiled material disc is placed horizontally, and the upper shaping frame 9 and the lower shaping frame 11 are respectively fixed above and below the coiled material disc. At this time, the bottom surface of the upper shaping frame 9 abuts against the upper surface of the lower shaping frame 11 to play a positioning role. The arc-shaped groove 10 of the upper shaping frame 9 fits on the upper half of the shaft tube 2, and the arc-shaped groove 10 of the lower shaping frame 11 fits on the lower half of the shaft tube 2. The two ends of the lower shaping frame 11 are placed on the shaping frame 12. Specifically, in order to prevent the shaping frame from rolling, an arc-shaped groove 13 is provided on the shaping frame 12, and the first plate 910 and the second plate 920 of the lower shaping frame 11 are respectively placed on the arc-shaped groove 13. Specifically, in order to prevent the shaping frame 12 from rolling onto the ground, the connecting rod 930 and the shaping frame 12 are tied with a steel wire.

[0075] Working process: First, use an oven to heat the metal skeleton 3 so that the surface of the support rod 330 has a certain temperature; Second, install the plastic buckle 331 on the support rod 330; Third, place the metal skeleton 3 in the first cavity 510 and the second cavity 610 respectively; Fourth, use an injection molding machine to perform injection molding to form a coiled material disc; Fifth, take out the coiled material disc; Sixth, place the coiled material disc on the shaping frame 12 for shaping. The injection-molded coiled material disc does not come with the mounting plate 4, and the mounting plate 4 needs to be installed separately.

[0076] Based on the above solution, if various modifications or variations to the present invention do not depart from the spirit and scope of the present invention, and provided that these modifications and variations are within the scope of the claims of the present invention and equivalent technical scope, then the present invention also intends to include these modifications and variations.

Claims

1. A coiling reel, characterized in that: It includes: Two disk bodies (1), which are arranged oppositely along the axial direction; A shaft tube (2), with both ends respectively arranged on the inner sides of the disk bodies (1), and the disk bodies (1) and the shaft tube (2) are integrally injection-molded; Metal skeletons (3) are embedded on both of the disk bodies (1).

2. The coiling reel according to claim 1, characterized in that: The metal skeleton (3) includes: A first ring (310); A second ring (320), the diameter of the first ring (310) is larger than that of the second ring (320), the first ring (310) and the second ring (320) are concentrically arranged and the second ring (320) is located inside the first ring (310); At least one support rod (330), one end of the support rod (330) is connected to the first ring (310), and the other end of the support rod (330) is connected to the second ring (320).

3. The coiling reel according to claim 2, wherein: At least one of the support rods (330) is provided with a plastic buckle (331) for guiding materials during injection molding.

4. The coiling reel according to claim 1, wherein: Blind holes (110) are provided on the outer sides of both of the disk bodies (1), and a rotating shaft (111) is arranged in the blind holes (110).

5. The coiling reel according to claim 4, wherein: The rotating shaft (111) is made of metal, and the rotating shaft (111) is embedded in the blind holes (110).

6. The coil reel according to claim 4 or 5, characterized in that: It further includes a mounting plate (4), At least one of the disk bodies (1) is provided with a mounting hole (120) communicating with the inside of the shaft tube (2) on the outer side corresponding to the shaft tube (2), the mounting plate (4) is detachably connected in the mounting hole (120), and the blind holes (110) are arranged on the mounting plate (4).

7. A manufacturing process for manufacturing the coiling disk according to any one of claims 1-6, characterized in that: I. Heating: Heating the metal skeleton (3); II. Skeleton installation: Installing plastic buckles on the metal skeleton (3); III. Skeleton placement: Placing the metal skeleton (3) into an injection mold; IV. Injection molding: Forming the coiling disk in the injection mold; V. Shaping: Shaping the formed coiling disk by using a shaping mechanism.

8. The coil reel according to claim 7, characterized in that: The injection mold includes: An upper mold (5), the bottom surface of the upper mold (5) is provided with a first cavity (510) for forming the upper surface of the coiling disk; A lower mold (6), the upper surface of the lower mold (6) is provided with a second cavity (610) for forming the bottom surface of the coiling disk; A mold core (7); Sliding seats (8), which are respectively located on the left and right sides of the mold core (7), the side surfaces of the sliding seats (8) close to the mold core (7) are provided with third cavities (510), and the third cavities (510) and the outer side surface of the mold core (7) are used for forming the shaft tube (2).

9. The coiling reel according to claim 8, wherein: The first cavity (510) includes: A first annular groove (511); A second annular groove (512); A third annular groove (513); A fourth annular groove (514), the first annular groove (511), the second annular groove (512), the third annular groove (513) and the fourth annular groove (514) are concentrically arranged and are distributed in sequence from the outside to the inside; A connecting groove (515) for forming the reinforcing ribs on the coiling disk, one end of the connecting groove (515) communicates with the first annular groove (511), and the other end of the connecting groove (515) sequentially passes through the second annular groove (512), the third annular groove (513) and communicates with the fourth annular groove (514); When the metal framework (3) is placed in the first cavity (510), the first loop (310) is located in the second annular groove (512), the second loop (320) is located in the third annular groove (513), and the support rod (330) is located in the connection groove (515).

10. The coiling reel according to claim 7, characterized in that: The shaping mechanism includes: An upper shaping frame (9), which includes a first plate (910), a second plate (920) and a connecting rod (930). The first plate (910) and the second plate (920) are arranged opposite to each other. One end of the connecting rod (930) is connected to the first plate (910), and the other end of the connecting rod (930) is connected to the second plate (920). At the ends of the first plate (910) and the second plate (920) close to the shaft tube (2), arc-shaped grooves (11) for clamping on the shaft tube (2) are provided. A lower shaping frame (10), which is symmetric to the upper shaping frame (9) about the axis of the shaft tube (2). During shaping, the first plate (910) and the second plate (920) respectively abut against the inner side of the disc body (1).

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