Racket tee joint die

Abstract

The utility model discloses a racket three-way mold which comprises an upper mold base and a lower mold base, an upper mold core is installed at the lower end of the upper mold base, a lower mold core is installed on the lower mold base, after the upper mold core and the lower mold core are closed, a racket three-way forming mold cavity is formed by a space defined by the two ends of the lower mold core and the two ends of the upper mold core, and a pouring gate is formed in the top of the upper mold base. A runner communicated with the two mold cavities is formed in the top of the lower mold core, the lower end of the sprue is communicated with the runner, during casting, casting liquid flows into the two mold cavities from the sprue through the runner, and after the tee joint body in the mold cavities is formed, a solidified drainage opening material in the runner is connected with the side, needing to be provided with a through hole, of the formed tee joint body; the connecting point of the drainage opening material and the tee joint body is arranged on the side, needing to be punched with the through hole, of the tee joint body, so that when the through hole is punched in the tee joint body, the drainage opening material can be directly removed, the part is directly polished after the through hole is punched, and the production efficiency of the tee joint body is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a three-way mold for a racket. Background Art

[0002] With the growing popularity of badminton and rising competitive levels, the demand for badminton equipment, especially badminton rackets, has become increasingly diverse and specialized. As a core piece of equipment, the performance and quality of badminton rackets are crucial. Therefore, the design, manufacturing, and material selection of badminton rackets have become a focus of industry attention.

[0003] In the structural design of a badminton racket, the racket tee (also known as the T-head) is the key component connecting the racket frame and the center shaft.

[0004] Currently, most racket tees are produced using a mold casting process. However, during production, the existing racket tee mold sets the casting port in the middle of the top of the racket tee, so that the top of the racket tee after molding has a casting port. This requires not only drilling and polishing of the connection between the racket tee and the racket, but also deburring of the casting port, resulting in low production efficiency.

[0005] Therefore, a three-way mold for a racket is proposed. Utility Model Content

[0006] The utility model aims to provide a racket tee mold to solve the technical problem that the current pouring port is located at the top of the racket tee and the pouring port needs to be polished and deburred, resulting in low production efficiency of the racket tee.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The racket tee mold includes an upper mold base and a lower mold base. The bottom of the upper mold base is provided with an upper positioning mold groove, and the upper mold core is fixedly connected to the upper positioning mold groove. The top of the lower mold base is fixedly provided with a lower positioning mold groove, and the lower mold core is installed in the lower positioning mold groove. After the upper mold core and the lower mold core are closed, the space surrounded by the lower mold core and the upper mold core forms a racket tee forming mold cavity. Three groups of internal extractions are provided in each of the two mold cavities for core pulling of the formed tee body. A gate is provided on the top of the upper mold base, and a runner connected to the two mold cavities is provided on the top of the lower mold core. The lower end of the gate is connected to the runner. During casting, the casting liquid flows from the gate through the runner into the two mold cavities. After the tee body in the mold cavity is formed, the sprue material solidified in the runner is connected to the side of the formed tee body that needs to be punched.

[0009] As a preferred solution of the present invention, a sliding groove corresponding to the inner drawer is provided on the lower mold base, a slider is slidably connected in the sliding groove, an inclined rod is fixedly connected to the slider, the side of the slider close to the mold cavity is fixedly connected to one end of the inner drawer, and an inclined hole corresponding to the inclined rod is provided on the top of the upper mold base, and the upper end of the inclined rod is slidably inserted in the inclined hole.

[0010] As a preferred solution of the present invention, the four corners of the lower die base are provided with slide grooves, and the four corners of the bottom of the upper die base are fixedly connected with guide pillars, and the lower ends of the guide pillars can be slidably inserted into the slide grooves.

[0011] As a preferred solution of the present invention, the racket tee mold also includes a ejector rod, and a plurality of ejector holes are opened on the lower mold core. The upper end of the ejector rod slides through the lower mold base and can extend into the ejector hole. By pushing the ejector rod upward, the upper end of the ejector rod can eject the formed tee body from the mold cavity.

[0012] As a further solution of the present invention, the bottom of the lower mold base is fixedly connected to the base through a support plate, the top of the base is fixedly installed with a fixed seat, the bottom of the fixed seat is fixedly installed with a cylinder, the bottom of the ejecting rod is fixedly connected to the movable seat, and the top of the piston rod of the cylinder is fixedly connected to the bottom of the movable seat.

[0013] As a further solution of the present invention, the top of the fixed seat is fixedly connected to a guide rod, and the movable seat is slidably sleeved on the guide rod.

[0014] Compared with the existing technology, the racket three-way mold of the utility model has the following beneficial effects:

[0015] The utility model arranges the connection point between the nozzle material and the tee body on the side of the tee body where a through hole is required, so that when the through hole is drilled in the tee body, the nozzle material can be directly knocked off, and after the through hole is drilled, the part can be directly polished, thereby effectively improving the production efficiency of the tee body.

[0016] The upper and lower positioning mold grooves cooperate with the guide pins and slide grooves to achieve double positioning of the mold core, thereby effectively improving the mold closing accuracy.

[0017] The inclined hole, inclined rod, slider and inclined rod can automatically perform core pulling operation when the mold is opened, which is convenient and quick to use.

[0018] After the mold is opened, the cylinder and the ejector rod can be controlled to extend the piston rod of the cylinder, thereby driving the ejector rod to move upward and ejecting the tee body in the mold cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only examples of the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 The structure of the embodiment of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the local structure of an embodiment of the utility model Figure 1 ;

[0022] Figure 3 This is a schematic diagram of the local structure of an embodiment of the utility model Figure 2 ;

[0023] Figure 4 This is a schematic diagram of the local structure after core pulling in the embodiment of the utility model;

[0024] Figure 5 This is a structural diagram of the lower mold core in an embodiment of the present utility model;

[0025] Figure 6 This is a structural diagram of the tee body during molding in an embodiment of the present utility model;

[0026] Figure 7 The structure of the embodiment of the utility model is shown in FIG. Figure 2 .

[0027] Reference numerals:

[0028] 1. Upper mold base; 101. Gate; 102. Guide pillar; 103. Inclined hole; 2. Lower mold base; 201. Slide; 2011. Slider; 2012. Inclined rod; 2013. Inner pull-out; 202. Guide hole; 3. Ejector rod; 301. Moving seat; 302. Cylinder; 4. Tee body; 5. Lower mold core; 501. Runner; 502. Ejector hole; 6. Upper mold core; 7. Base; 701. Support plate; 8. Fixed seat; 801. Guide rod. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following is a further detailed description of the present invention in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the embodiments of the present invention.

[0031] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0032] See also Figures 1 to 7 As shown, the racket three-way mold of the utility model embodiment includes an upper mold base 1 and a lower mold base 2. The bottom of the upper mold base 1 is provided with an upper positioning mold groove, and the upper mold core 6 is fixedly connected to the upper positioning mold groove. The top of the lower mold base 2 is fixedly provided with a lower positioning mold groove, and the lower mold core 5 is installed in the lower positioning mold groove. After the upper mold core 6 and the lower mold core 5 are molded together, the space enclosed by the two ends of the lower mold core 5 and the upper mold core 6 forms a racket three-way molding cavity. Three groups of molds are provided in each of the two mold cavities for adjusting the mold after molding. The tee body 4 is cored out in 2013, a gate 101 is provided on the top of the upper mold base 1, and a runner 501 connected to the two mold cavities is provided on the top of the lower mold core 5. The lower end of the gate 101 is connected to the runner 501. During casting, the casting liquid flows from the gate 101 through the runner 501 into the two mold cavities. After the tee body 4 in the mold cavity is formed, the sprue material solidified in the runner 501 is connected to the side of the formed tee body 4 that needs to be punched.

[0033] In the injection molding or casting process, sprue is the excess material that solidifies and remains at the mold's gate. This excess material is left at the gate during the injection molding or casting process to introduce the molten material into the mold cavity. The gate is a small passage connecting the injection molding machine nozzle to the mold cavity. Its function is to control the flow rate and direction of the molten material, ensuring that the material evenly fills the mold cavity.

[0034] In this embodiment of the present invention, the casting liquid flows through the gate 101 into the runner 501 and then into the two mold cavities to form the tee body 4. During this process, the gate and runners are also filled with casting liquid, which solidifies after cooling. When the tee body 4 is removed from the mold, the solidified material in the gate and runners forms the nozzle material. The nozzle material is partially connected to the tee body 4 and requires machining and polishing to remove it to obtain the tee body 4.

[0035] In the above technical solution, the connection point between the nozzle material and the tee body 4 is set on the side of the tee body 4 where a hole needs to be punched, so that when the hole is punched in the tee body 4, the nozzle material can be directly knocked off. After the hole is punched, the part can be directly polished, which effectively improves the production efficiency of the tee body 4.

[0036] In an embodiment of the present utility model, a sliding groove 201 corresponding to the inner drawer 2013 is provided on the lower mold base 2, a slider 2011 is slidably connected in the sliding groove 201, an inclined rod 2012 is fixedly connected to the slider 2011, and the side of the slider 2011 close to the mold cavity is fixedly connected to one end of the inner drawer 2013. An inclined hole 103 corresponding to the inclined rod 2012 is provided on the top of the upper mold base 1, and the upper end of the inclined rod 2012 is slidably inserted into the inclined hole 103.

[0037] When the mold is opened, the upper mold base 1 moves upward, and the inclined hole 103 squeezes the inclined rod 2012, causing the inclined rod 2012 to move away from the mold cavity. The inclined rod 2012 drives the slider 2011 to move away from the mold cavity, and finally the inner drawer 2013 is drawn out from the molding tee body 4, that is, the automatic core pulling operation when the mold is opened is realized through the above method.

[0038] In the embodiment of the present invention, the four corners of the lower mold base 2 are provided with a slide groove 201, and the four corners of the bottom of the upper mold base 1 are fixedly connected with a guide column 102. The lower end of the guide column 102 can be slidably inserted into the slide groove 201 to ensure the mold closing accuracy of the lower mold core 5 and the upper mold core 6.

[0039] In order to facilitate the removal of the formed tee body 4 from the mold cavity, the racket tee mold of the utility model embodiment is also provided with a ejector rod 3, and a plurality of ejector holes 502 are opened on the lower mold core 5. The upper end of the ejector rod 3 slides through the lower mold base 2 and can extend into the ejector hole 502. By pushing the ejector rod 3 upward, the upper end of the ejector rod 3 can eject the formed tee body 4 from the mold cavity. The bottom of the lower mold base 2 is fixedly connected to the base 7 through the support plate 701. The top of the base 7 is fixedly installed with a fixed seat 8. The bottom of the fixed seat 8 is fixedly installed with a cylinder 302. The bottom of the ejector rod 3 is fixedly connected to the movable seat 301. The top of the piston rod of the cylinder 302 is fixedly connected to the bottom of the movable seat 301. In order to ensure the stability of the movable seat 301 when it moves downward, the top of the fixed seat 8 is fixedly connected to the guide rod 801, and the movable seat 301 is slidably sleeved on the guide rod 801.

[0040] During use, the piston rod of the air cylinder 302 is controlled to extend, thereby driving the ejector rod 3 to move upward, thereby ejecting the tee body 4 in the mold cavity.

[0041] The above shows and describes the basic principles of the present invention. The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. The above embodiments and descriptions in the specification are only to illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A racket three-way mold, comprising an upper mold base (1) and a lower mold base (2), characterized in that: An upper positioning die groove is provided at the bottom of the upper die seat (1), an upper die core (6) is fixedly connected in the upper positioning die groove, a lower positioning die groove is fixedly provided at the top of the lower die seat (2), a lower die core (5) is installed in the lower positioning die groove, after the upper die core (6) and the lower die core (5) are molded together, the space enclosed by the lower die core (5) and the upper die core (6) forms a racket tee forming die cavity, three groups of inner pullers (2013) for pulling the core of the formed tee body (4) are provided in each of the two cavities, a gate (101) is provided at the top of the upper die seat (1), a flow channel (501) connected to the two cavities is provided at the top of the lower die core (5), and the lower end of the gate (101) is connected to the flow channel (501).

2. The racket three-way mold according to claim 1, characterized in that: The lower die base (2) is provided with a slide groove (201) corresponding to the inner drawer (2013), a slider (2011) is slidably connected in the slide groove (201), an inclined rod (2012) is fixedly connected to the slider (2011), a side of the slider (2011) close to the die cavity is fixedly connected to one end of the inner drawer (2013), and an inclined hole (103) corresponding to the inclined rod (2012) is provided on the top of the upper die base (1), and the upper end of the inclined rod (2012) is slidably inserted into the inclined hole (103).

3. The racket three-way mold according to claim 1, characterized in that: The four corners of the lower die base (2) are each provided with a slide groove (201), and the four bottom corners of the upper die base (1) are each fixedly connected with a guide column (102), and the lower end of the guide column (102) can be slidably inserted into the slide groove (201).

4. The racket three-way mold according to claim 1, characterized in that: It also includes a ejector rod (3), and a plurality of ejector holes (502) are opened on the lower mold core (5). The upper end of the ejector rod (3) can slide through the lower mold base (2) and then extend into the ejector hole (502). By pushing the ejector rod (3) upward, the upper end of the ejector rod (3) can eject the formed tee body (4) from the mold cavity.

5. The racket three-way mold according to claim 4, characterized in that: The bottom of the lower die base (2) is fixedly connected to a base (7) via a support plate (701), a fixed base (8) is fixedly installed on the top of the base (7), a cylinder (302) is fixedly installed on the bottom of the fixed base (8), the bottom of the ejector rod (3) is fixedly connected to a movable base (301), and the top of the piston rod of the cylinder (302) is fixedly connected to the bottom of the movable base (301).

6. The racket three-way mold according to claim 5, characterized in that: The top of the fixed seat (8) is fixedly connected to a guide rod (801), and the movable seat (301) is slidably sleeved on the guide rod (801).

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