Manufacturing Method and Mold of Artificial Badminton

Abstract

The present invention discloses a manufacturing method and a mold for an artificial badminton, which are used to manufacture an artificial badminton from a badminton semi-finished product. The mold includes a male mold and a female mold. The male mold includes a frustum of a cone and a plurality of first annular grooves. The badminton semi-finished product is placed on an outer side of the frustum of the cone. The first annular grooves are arranged on the outer side of the frustum of the cone at intervals. The female mold includes a tapered groove, a plurality of second annular grooves and a material injection runner. The second annular grooves are arranged on an inner surface of the tapered groove at intervals. When the badminton semi-finished product and the male mold are placed into the female mold, each of the first annular grooves corresponds to each of the second annular grooves to form a plurality of forming grooves. The material injection runner is communicated with the second annular grooves, and the forming grooves are communicated with the material injection runner through the second annular grooves. Connectors of the artificial badminton are formed by the structures of the male mold and the female mold, so as to solve the problem of complicated manufacturing processes of the connectors of conventional artificial badminton.

Description

Technical Field

[0001] The present invention relates to a manufacturing method and a mold for an artificial badminton. Background Art

[0002] Badminton games are common and popular ball games, and players use hitting a badminton as a game method. For traditional badminton, its main structure is that natural feathers are combined with a ball head. Among them, natural feathers are mostly goose feathers or duck feathers, and after being bleached and screened, they are made into badminton. However, it is becoming more and more difficult to obtain natural feathers, and the screening process is complicated and labor-consuming. Therefore, there are also artificial badminton on the market, attempting to solve the problems of shortage of natural feathers and complicated screening.

[0003] Most artificial badminton are made of a soft ball frame made of nylon to replace natural feathers, and the structure of the soft ball frame bears the airflow generated during hitting. However, the badminton made of such a soft ball frame provides a hitting touch that is not as good as that of the badminton made of natural feathers and is difficult to be accepted by users. Currently, there is also a design that uses a fiber-reinforced resin material as the shaft and a lightweight foaming material as the vane. This type of artificial badminton is more similar in appearance to natural badminton, and its hitting touch is also better than that of the badminton made of a soft ball frame.

[0004] However, for the artificial badminton with a lightweight foaming material as the vane, the manufacturing process is relatively complicated. For example, after respectively attaching a plurality of vanes to one end of a plurality of shafts, the other ends of these shafts are sequentially inserted into a ball head to form a semi-finished badminton with a ball head, shafts and vanes. Then, thread is wound around these shafts to fix the distance between the shafts. After the thread is wound, it is still necessary to knot the thread manually and coat the thread with glue. After the glue dries, a connecting piece of the artificial badminton is formed. In other words, for the current artificial badminton with a foaming material as the vane, the manufacturing steps of its connecting piece are quite complicated and there is still room for improvement. Summary of the Invention

[0005] In view of the above problems, the main object of the present invention is to provide a manufacturing method and a mold for an artificial badminton, and a connecting piece of the artificial badminton is made through the structures of a male mold and a female mold, so as to solve the problem of the complicated manufacturing process of the connecting piece of the conventional artificial badminton.

[0006] To achieve the above object, the present invention provides a method for manufacturing an artificial badminton, comprising the following steps: providing a badminton semi-finished product, which includes a ball head, a plurality of feather shafts, and a plurality of feather pieces, one end of each of the feather shafts being inserted into the ball head, and the feather pieces being connected to the other ends of the feather shafts; placing the badminton semi-finished product in a male mold, the male mold including a frustum of a cone and a plurality of first annular grooves, the first annular grooves being spaced apart and disposed on an outer side of the frustum of the cone, and the badminton semi-finished product being placed on the outer side of the frustum of the cone; placing the badminton semi-finished product together with the male mold into a female mold, the female mold including a tapered groove, a plurality of second annular grooves, and a material injection runner, the second annular grooves being spaced apart and disposed on an inner surface of the tapered groove, the material injection runner being in communication with the second annular grooves, and each of the first annular grooves corresponding to each of the second annular grooves to form a plurality of forming grooves, the forming grooves being in communication with the material injection runner through the second annular grooves; and injecting a plastic from the material injection runner, and the plastic being cured in the forming grooves to form a plurality of connecting members.

[0007] To achieve the above object, the present invention further provides a mold for manufacturing an artificial badminton from a badminton semi-finished product. The badminton semi-finished product includes a ball head, a plurality of feather shafts, and a plurality of feather pieces. One end of each of the feather shafts is inserted into the ball head, and the feather pieces are connected to the other ends of the feather shafts. The mold includes a male mold and a female mold. The male mold includes a frustum of a cone and a plurality of first annular grooves. The frustum of the cone has an outer side, and the badminton semi-finished product is placed on the outer side of the frustum of the cone. The first annular grooves are spaced apart and disposed on the outer side of the frustum of the cone. The female mold includes a tapered groove, a plurality of second annular grooves, and a material injection runner. The tapered groove has an inner surface. The second annular grooves are spaced apart and disposed on the inner surface of the tapered groove. When the badminton semi-finished product together with the male mold is placed into the female mold, each of the first annular grooves corresponds to each of the second annular grooves to form a plurality of forming grooves. The material injection runner is in communication with the second annular grooves, and the forming grooves are in communication with the material injection runner through the second annular grooves. A plastic is injected from the material injection runner, and the plastic is cured in the forming grooves to form a plurality of connecting members.

[0008] According to an embodiment of the present invention, the first annular grooves are parallel to a top surface of the frustum of the cone.

[0009] According to an embodiment of the present invention, the male mold includes a plurality of first feather shaft grooves. The first feather shaft grooves are spaced apart and disposed on the outer side of the frustum of the cone and are staggered with the first annular grooves. The feather shafts of the badminton semi-finished product are received in the first feather shaft grooves.

[0010] According to an embodiment of the present invention, the number of the first annular grooves and the second annular grooves is three to form three forming grooves.

[0011] According to an embodiment of the present invention, the distance between two adjacent first annular grooves is the same.

[0012] According to an embodiment of the present invention, the conical groove includes a spherical head portion and a first conical portion, and the first conical portion is disposed adjacent to the spherical head portion. The ball head of the badminton semi-finished product is received in the spherical head portion, and these second annular grooves are provided in the first conical portion.

[0013] According to an embodiment of the present invention, the conical groove includes a second conical portion, which is disposed adjacent to the first conical portion. Moreover, an inner diameter of the second conical portion is greater than an inner diameter of the first conical portion. These feather pieces of the badminton semi-finished product are received in the second conical portion.

[0014] As described above, according to the method for manufacturing an artificial badminton and the mold of the present invention, the mold includes a male mold and a female mold. The male mold includes a frustum of a cone and a plurality of first annular grooves, and the first annular grooves are spaced apart and provided on the outer side of the frustum of the cone. Correspondingly, the female mold includes a conical groove and a plurality of second annular grooves, and the second annular grooves are spaced apart and provided in the conical groove. When the badminton semi-finished product together with the male mold is placed into the female mold, the first annular grooves correspond to the second annular grooves to form a molding groove. In addition, the female mold further includes a pouring runner, which communicates with the second annular grooves. When a plastic is injected from the pouring runner, the plastic is cured in the molding groove to form a plurality of connecting members, thereby forming an artificial badminton. Among them, by using the plastic curing and molding method to prepare the connecting members, steps such as winding, knotting, and gluing the connecting members with a nylon rope in the conventional art can be omitted, and thus the efficiency of manufacturing the artificial badminton can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic flow chart of the method for manufacturing an artificial badminton according to an embodiment of the present invention;

[0016] Figure 2 is Figure 1 a schematic view of the badminton semi-finished product provided in step S10 shown;

[0017] Figure 3 is a schematic view of the male mold of the mold according to an embodiment of the present invention;

[0018] Figure 4 is a schematic view of the female mold of the mold according to an embodiment of the present invention;

[0019] Figure 5 is Figure 1 a schematic view of the badminton semi-finished product and the male mold placed into the female mold in step S30 shown;

[0020] Figure 6 is a sectional view of the mold according to an embodiment of the present invention;

[0021] Figure 7 is Figure 6 an enlarged schematic view of the circled part of the mold shown;

[0022] Figure 8 Schematic diagram of an artificial badminton made with a Figure 3 mold.

[0023]

Symbol Explanation

[0024] Mold 1

[0025] Male mold 10

[0026] Truncated cone 11

[0027] Outer side 111

[0028] Top surface 112

[0029] First annular groove 12

[0030] First feather rod groove 13

[0031] Cylindrical part 14

[0032] Female mold 20

[0033] Tapered groove 21

[0034] Inner surface 211

[0035] Second annular groove 22

[0036] Injection runner 23

[0037] Branch runner 231

[0038] Second feather rod groove 24

[0039] Ball head 25

[0040] First tapered part 26

[0041] Second tapered part 27

[0042] Artificial badminton 9

[0043] Semi-finished badminton 9’

[0044] Ball head 91

[0045] Feather rod 92

[0046] Feather piece 93

[0047] Connector 94

[0048] Forming groove M Detailed Implementation Manner

[0049] To better understand the technical content of the present invention, specific preferred embodiments are hereby given as follows.

[0050] Figure 1Schematic flow chart of the manufacturing method of an artificial badminton according to an embodiment of the present invention; Figure 2 is Figure 1 Schematic diagram of the badminton semi-finished product provided by step S10 shown; Figure 3 Schematic diagram of the male mold of the mold according to an embodiment of the present invention; Figure 4 Schematic diagram of the female mold of the mold according to an embodiment of the present invention. Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown. The artificial badminton 9 of this embodiment is made by the mold 1, and its manufacturing method is as Figure 1 shown. The mold 1 of this embodiment will be further described below according to the content of each step.

[0051] Step S10: Provide a badminton semi-finished product 9'.

[0052] The manufacturing method of the artificial badminton in this embodiment mainly makes a badminton semi-finished product 9' (as Figure 1 shown) into an artificial badminton 9 (please refer to Figure 8 shown) method. Among them, the badminton semi-finished product 9' includes a ball head 91, a plurality of feather shafts 92 and a plurality of feather vanes 93. One side of the ball head 91 is a semi-circular convex surface, and the other side is a flat surface, and the flat surface is available for the feather shaft 92 to be inserted. A plurality of feather shafts 92 are arranged at intervals on the ball head 91, and one end of the feather shaft 92 is inserted into the flat surface of the ball head 91. Also, the other end of the feather shaft 92 is connected to the feather vane 93, that is, the feather vanes 93 are respectively connected to the feather shafts 92. In this embodiment, the material of the feather shaft 92 is a carbon fiber reinforced resin material to increase the durability of the feather shaft 92. Specifically, the feather shaft 92 of this embodiment is composed of a unidirectional (UD) carbon fiber cloth and a woven fiberglass cloth stacked, which can increase the strength and durability of the feather shaft 92.

[0053] Preferably, the feather vane 93 is connected to the feather shaft 92 by glue and is close to the feather shaft 92. In this embodiment, every two feather vanes 93 are respectively combined with one feather shaft 92, that is, every two feather vanes 93 are respectively connected to the opposite sides of the feather shaft 92. Preferably, the feather vane 93 can be bonded to the feather shaft 92 first, and then the feather shaft 92 is inserted into the ball head 91.

[0054] Also, the feather vane 93 of this embodiment is also an artificial feather vane to replace natural feathers. Among them, the feather vane 93 is made of a material with a density between 0.9 g / cm 3 to 1.48 g / cm 3It is made of plastic between them, and the types of plastic can be, for example but not limited to, low density polyethylene (LDPE), linear low density polyethylene (LLDPE), polyethylene terephthalate (PET), polyethylene resin (PE), polypropylene (PP), acrylonitrile-butadiene-styrene (ABS), polyamide (PA), and expanded polyethylene (EPE) and other plastic materials. Preferably, the fluff 93 can be a combination of low density polyethylene (LDPE) and linear low density polyethylene (LLDPE). In addition, the overall configuration of the fluff 93 generally corresponds to the configuration of the feathers of a natural badminton. Specifically, the fluff 93 can be a symmetric configuration, and is symmetric with respect to the fluff stem 92 as the axis of symmetry, for example, a kite-shaped configuration.

[0055] Step S20: Place the badminton semi-finished product 9' on a male mold 10.

[0056] The mold 1 of this embodiment includes a male mold 10 (as Figure 3 shown) and a female mold 20 (as Figure 4 shown). The male mold 10 includes a cone frustum 11 and a plurality of first annular grooves 12. The cone frustum 11 has an outer side 111, and the badminton semi-finished product 9' can be placed on the outer side 111 of the cone frustum 11.

[0057] The first annular grooves 12 are spaced apart on the outer side 111 of the cone frustum 11. Specifically, these first annular grooves 12 are along the central axis of the cone frustum 11 and are parallel to each other around the outer side 111 of the cone frustum 11, so that these first annular grooves 12 are also parallel to a top surface 112 of the cone frustum 11.

[0058] Also, the first annular grooves 12 are used to form part of the structure of the connecting member 94 of the artificial badminton 9 (please refer to Figure 8 shown). Therefore, the number of the first annular grooves 12 can refer to the number of the connecting members 94 to be formed. Preferably, the number of the first annular grooves 12 in this embodiment can be three to form three connecting members 94 in subsequent steps. Preferably, the distance between two adjacent first annular grooves 12 is substantially the same, and preferably can be between 5 millimeters and 17.5 millimeters.

[0059] Preferably, the male mold 10 further includes a plurality of first hairpin grooves 13. These first hairpin grooves 13 are also arranged at intervals on the outer side 111 of the frustum 11, but are staggered with these first annular grooves 12. For example, the first annular grooves 12 are horizontally arranged on the outer side 111 of the frustum 11, while the first hairpin grooves 13 are vertically arranged on the outer side 111 of the frustum 11, so that the first hairpin grooves 13 are staggered with the first annular grooves 12. Also, since the first annular grooves 12 surround the outer side 111 of the frustum 11, each first annular groove 12 is connected to all the first hairpin grooves 13.

[0060] In step S20, the badminton semi-finished product 9' is placed on the outer side 111 of the frustum 11. At the same time, the hairpins 92 of the badminton semi-finished product 9' are respectively received in the first hairpin grooves 13. In other words, the first hairpin grooves 13 can serve as the limiting structure for the hairpins 92.

[0061] Step S30: Place the badminton semi-finished product 9' together with the male mold 10 into a female mold 20.

[0062] Figure 5 For Figure 1 the schematic diagram of placing the badminton semi-finished product and the male mold into the female mold in step S30 as shown; Figure 6 is the cross-sectional view of the mold of an embodiment of the present invention; Figure 7 For Figure 6 the enlarged schematic diagram of the circled part of the mold shown. Among them, Figure 6 is also Figure 3 the cross-sectional view of the male mold shown and Figure 4 the female mold shown after combination. Please refer to Figure 4 , Figure 5 , Figure 6 and Figure 7 shown. In this embodiment, the female mold 20 includes a tapered groove 21, a plurality of second annular grooves 22 and a pouring runner 23. The tapered groove 21 has an inner surface 211 (as Figure 4 shown), and these second annular grooves 22 are arranged at intervals on the inner surface 211 of the tapered groove 21. Among them, the arrangement position of the second annular grooves 22 must correspond to that of the first annular grooves 12. Therefore, the second annular grooves 22 also surround the inner surface 211 of the tapered groove 21 along the central axis of the tapered groove 21 and are parallel to each other. In addition, the distance between two adjacent second annular grooves 22 is the same as the distance between two adjacent first annular grooves 12.

[0063] Since the arrangement position of the second annular grooves 22 corresponds to that of the first annular grooves 12, when the male mold 10 is placed into the tapered groove 21 of the female mold 20, each first annular groove 12 can respectively correspond to each second annular groove 22, and a plurality of molding grooves M can be jointly formed, as Figure 6 and Figure 7As shown. In other words, the number of forming grooves M is the same as that of the first annular groove 12 (or the second annular groove 22). In this embodiment, the number of the first annular groove 12 and the second annular groove 22 is three, so three forming grooves M can be formed. In addition, the forming groove M is the groove body for forming the connecting member 94 subsequently.

[0064] The injection runner 23 is used to inject the plastic for forming the connecting member 94. Among them, the injection runner 23 is communicated with the second annular groove 22. In this embodiment, the injection runner 23 has three branch runners 231, which are respectively communicated with the three second annular grooves 22. In other words, the number of the branch runners 231 is the same as that of the second annular grooves 22 (also the same as that of the first annular groove 12 and the forming groove M).

[0065] Step S40: Inject a plastic from the injection runner 23, and the plastic is cured in the forming groove M to form a plurality of connecting members 94.

[0066] As mentioned above, the injection runner 23 is communicated with the second annular groove 22, and the first annular groove 12 and the second annular groove 22 together form the forming groove M, that is to say, the forming groove M can be communicated with the injection runner 23 through the second annular groove 22. Therefore, the plastic can be injected into the injection runner 23, enter the forming groove M through the branch runner 231, and then be cured in the forming groove M to form the connecting member 94. Among them, the plastic can be, for example but not limited to, plastic materials such as polypropylene (abbreviated as PP) or polyamide (abbreviated as PA), etc., to form the connecting member 94 made of polypropylene or polyamide materials.

[0067] Moreover, since the first annular groove 12 and the first hair rod groove 13 (for accommodating the hair rod 92) are arranged staggeredly, the first annular groove 12 and the first hair rod groove 13 can be communicated at the staggered part. Therefore, after the plastic is injected into the forming groove M, it can further flow to the staggered part and be cured and formed on the outer side of a part (the staggered part) of the hair rod 92, so that the cured connecting member 94 can be connected to the hair rod 92.

[0068] Preferably, the female mold 20 may also include a plurality of second hair rod grooves 24, as Figure 4 shown, which are arranged at intervals on the inner surface 211 of the tapered groove 21 and are staggered with the second annular groove 22. The hair rod 92 of the badminton semi-finished product 9' can be accommodated in the space formed by the first hair rod groove 13 and the second hair rod groove 24, so that the cured connecting member 94 can be evenly coated on the outer side of the hair rod 92.

[0069] Preferably, the conical groove 21 further includes a spherical head portion 25, a first conical portion 26, and a second conical portion 27. The first conical portion 26 is disposed adjacent to the spherical head portion 25, and the second conical portion 27 is disposed adjacent to the first conical portion 26. That is to say, the first conical portion 26 is located between the spherical head portion 25 and the second conical portion 27. Please also refer to Figure 4 , Figure 5 and Figure 6 shown. The ball head 91 of the badminton semi-finished product 9' is received in the spherical head portion 25, and the second annular groove 22 and the second feather rod groove 24 are both provided in the first conical portion 26.

[0070] As Figure 6 shown, an inner diameter of the second conical portion 27 is greater than an inner diameter of the first conical portion 26. That is to say, the second conical portion 27 expands toward the outside of the conical groove 21 so that the feather piece 93 of the badminton semi-finished product 9' can be received in the second conical portion 27. Preferably, the male mold 10 further includes a cylindrical portion 14, which is disposed adjacent to the frustum 11 and can correspond to the second conical portion 27 of the female mold 20. The feather piece 93 can be received between the cylindrical portion 14 and the second conical portion 27.

[0071] Step S50: Demold the artificial badminton 9 from the mold 1.

[0072] Figure 8 For a schematic diagram of the artificial badminton made by the mold of Figure 3 , please refer to Figure 8 shown. After the plastic is cured in the molding groove M to form the connecting member 94 (step S40), the artificial badminton 9 is made. Finally, the artificial badminton 9 is demolded from the mold 1, as Figure 8 shown.

[0073] Preparing the connecting member 94 by plastic curing molding can omit the steps of winding, knotting, and gluing the conventional nylon cord as the connecting member, so the manufacturing efficiency of the artificial badminton 9 can be improved.

[0074] In addition, the last step of the manufacturing method of the artificial badminton 9 is to glue the whole artificial badminton 9, so it still takes time to wait for the glue to dry. In this embodiment, since the material of the feather rod 92 is a carbon fiber reinforced resin material and the connecting member 94 is formed by plastic curing, the whole artificial badminton 9 can be glued with a photocuring glue (such as UV glue), which can also improve the manufacturing efficiency of the artificial badminton 9.

[0075] In summary, according to the manufacturing method and mold of the artificial badminton of the present invention, the mold includes a male mold and a female mold. The male mold includes a frustum of a cone and a plurality of first annular grooves, and the first annular grooves are arranged at intervals on the outer side of the frustum of the cone. Correspondingly, the female mold includes a tapered groove and a plurality of second annular grooves, and the second annular grooves are arranged at intervals in the tapered groove. When the badminton semi-finished product and the male mold are placed into the female mold, the first annular grooves correspond to the second annular grooves to form a molding groove. In addition, the female mold further includes a feed runner, which is communicated with the second annular groove. When a plastic is injected from the feed runner, the plastic is cured in the molding groove to form a plurality of connecting members, thereby forming an artificial badminton. Among them, the connecting members are prepared by the plastic curing molding method, which can omit the steps of winding, knotting, gluing the pulley line, etc. of using the synthetic fiber rope as the connecting member in the prior art, and thus can improve the efficiency of manufacturing the artificial badminton.

[0076] It should be noted that the above-mentioned numerous embodiments are examples for the convenience of description. The scope of the rights claimed by the present invention should be subject to what is described in the claims, rather than being limited to the above embodiments.

Claims

1. A manufacturing method of an artificial badminton, characterized in that, Including the following steps: Providing a badminton semi-finished product, which includes a ball head, a plurality of feather shafts and a plurality of feathers. One end of each of these feather shafts is inserted into the ball head, and these feathers are connected to the other ends of these feather shafts; Placing the badminton semi-finished product in a male mold, the male mold includes a frustum of a cone and a plurality of first annular grooves. These first annular grooves are spacedly arranged on an outer side of the frustum of the cone, and the badminton semi-finished product is placed on the outer side of the frustum of the cone; Placing the badminton semi-finished product together with the male mold into a female mold. The female mold includes a tapered groove, a plurality of second annular grooves and a feeding runner. These second annular grooves are spacedly arranged on an inner surface of the tapered groove. The feeding runner is communicated with these second annular grooves, and each of these first annular grooves corresponds to each of these second annular grooves to form a plurality of molding grooves. These molding grooves are communicated with the feeding runner through these second annular grooves; and Injecting a plastic from the feeding runner, and the plastic is cured in these molding grooves to form a plurality of connecting pieces.

2. The manufacturing method of the artificial badminton according to claim 1, characterized in that, These first annular grooves are parallel to a top surface of the frustum of the cone.

3. The manufacturing method of the artificial badminton according to claim 1, characterized in that, The male mold includes a plurality of first feather shaft grooves, which are spacedly arranged on the outer side of the frustum of the cone and are staggered with these first annular grooves. These feather shafts of the badminton semi-finished product are received in these first feather shaft grooves.

4. The manufacturing method of the artificial badminton according to claim 1, characterized in that, The number of these first annular grooves and these second annular grooves is three to form three of these molding grooves.

5. The manufacturing method of the artificial badminton according to claim 4, characterized in that, The distance between two adjacent ones of these first annular grooves is the same.

6. The manufacturing method of the artificial badminton according to claim 1, characterized in that, The tapered groove includes a ball head portion and a first tapered portion. The first tapered portion is adjacent to the ball head portion. The ball head of the badminton semi-finished product is received in the ball head portion, and these second annular grooves are arranged on the first tapered portion.

7. The manufacturing method of the artificial badminton according to claim 6, characterized in that, The tapered groove includes a second tapered portion, which is adjacent to the first tapered portion, and an inner diameter of the second tapered portion is greater than an inner diameter of the first tapered portion. These feathers of the badminton semi-finished product are received in the second tapered portion.

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