Injection molding device for shuttlecock production

Abstract

The utility model discloses an injection molding device for badminton production relates to injection molding processing technical field, and the device includes the injection unit and the forming unit of intercommunication, and the forming unit contains ejection subassembly and mould assembly, and the fixed die piece of mould assembly, movable die piece all are equipped with cooling cavity in, and its same side end port passes through two -position three -way valve and is connected with cooling circulator intercommunication, forms controllable cooling - preheating circulation system, and can switch low temperature rapid cooling and waste heat circulation preheating mode, avoids the raw material solidification jamming runner in advance caused by mould low temperature, and the fixed die piece one side sets up multiple groups of through -going chamber, and the inner wall is equipped with the lower cavity, and the movable die piece one side sets up the link block embedding through -going chamber, and the link block one side is equipped with the upper cavity of matching with lower cavity, and the two close -to -form forming cavity, and the gap between link block and through -going chamber makes raw material cooling shrinkage after tightly wrapping link block, and the demoulding is convenient. Through multi -cavity synchronous injection molding, balance runner design, improve production efficiency, be applicable to the large -scale production of badminton key components.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding technology, and in particular relates to an injection molding device for badminton shuttlecock production. Background Technology

[0002] In the badminton manufacturing industry, injection molding is a core technology for producing key components such as the shuttlecock head and connecting parts. With the increasing popularity of badminton globally and the continuous improvement of competitive levels, market demand for badminton shuttlecocks is increasing year by year, while the requirements for product performance are becoming increasingly stringent. The continuous expansion of the industrial production scale of badminton shuttlecocks and the constant improvement of performance requirements have placed higher demands on the precision, efficiency, and stability of injection molding equipment.

[0003] Currently, the cooling system of existing badminton shuttlecock injection molding equipment usually adopts a one-way cooling mode, that is, the low temperature coolant is only used to cool the mold and is discharged directly after cooling. However, when multi-cavity molds are produced continuously, the temperature of the mold is too low after cooling, which causes the molten plastic material injected later to cool and solidify prematurely when it comes into contact with the mold, resulting in flow channel blockage or incomplete mold filling. Utility Model Content

[0004] The purpose of this invention is to provide an injection molding device for badminton production. Through a controllable cooling-preheating circulation system formed by a two-position three-way valve and a cooling circulator, it solves the problem that the liquid raw material cools and solidifies prematurely and blocks the flow channel due to the low temperature after the existing mold is cooled.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is an injection molding device for badminton shuttlecock production, including an injection unit and a molding unit connected to each other. The molding unit includes an ejection assembly and a mold assembly. The mold assembly includes a fixed mold part and a moving mold part. Cooling channels are opened inside the fixed mold part and the moving mold part. The ports of the two cooling channels located on the same side are fixedly connected to a two-position three-way valve. A cooling circulator is fixedly connected between the main interfaces of the two two-position three-way valves.

[0007] The present invention is further configured such that multiple sets of flow chambers are linearly arrayed on one side of the fixed mold, and a number of lower cavities are formed in the inner wall of the flow chamber.

[0008] The present invention is further provided that a through groove is provided between two adjacent flow chambers.

[0009] The present invention is further configured such that multiple sets of connecting blocks are fixed in a linear array on one side of the moving module, and the connecting blocks are embedded in the flow chamber.

[0010] The present invention is further configured such that there is a gap between the connecting block and the flow chamber.

[0011] The present invention is further configured such that a plurality of upper cavities are provided on one side of the connecting block, and the upper cavities are matched with the lower cavities.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model, through the cooperation of a two-position three-way valve and a cooling circulator, enables the cooling chamber to automatically switch between "low-temperature rapid cooling" and "residual heat circulation preheating" modes. During the cooling stage, low-temperature coolant is discharged into the cooling chamber to rapidly reduce the mold temperature and accelerate plastic curing; during the preheating stage, the residual heat of the coolant is used to preheat the mold, preventing the raw material from prematurely cooling and hardening due to the low temperature of the mold during subsequent injection molding, preventing flow channel blockage and incomplete mold filling, and improving the stability of continuous production of multi-cavity molds.

[0014] 2. This utility model, through the embedded fit and gap design of the connecting block and the flow chamber, not only ensures the mold closing accuracy, but also ensures that the product is reliably attached to the moving mold side when the mold is opened by the shrinkage of the raw material after cooling, which facilitates the automatic demolding of the ejection component and reduces the risk of manual intervention and product damage.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of an injection molding device for badminton shuttlecock production.

[0018] Figure 2 This is a structural schematic diagram of the mold assembly and the two-position three-way valve;

[0019] Figure 3 This is a sectional view of the mold assembly;

[0020] Figure 4 This is a structural schematic diagram of a fixed mold component;

[0021] Figure 5 A schematic diagram of the moving module.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Injection unit; 2. Molding unit; 3. Ejection assembly; 4. Mold assembly; 5. Fixed mold part; 6. Moving mold part; 7. Cooling channel; 8. Two-position three-way valve; 9. Flow chamber; 10. Lower cavity; 11. Through groove; 12. Connecting block; 13. Upper cavity. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation

[0026] Please see Figure 1-5 This utility model is an injection molding device for badminton shuttlecock production, including an injection unit 1 and a molding unit 2 connected to each other. The molding unit 2 includes an ejector assembly 3 and a mold assembly 4. The injection unit 1 is responsible for melting plastic raw materials and injecting them under high pressure. The molding unit 2 completes the shaping through the mold assembly 4. The ejector assembly 3 realizes the demolding of the product. The units work together to realize an automated injection molding process.

[0027] Specifically, mold assembly 4 includes a fixed mold part 5 and a moving mold part 6. Both the fixed mold part 5 and the moving mold part 6 have cooling channels 7 inside. The ports of the two cooling channels 7 on the same side are fixedly connected to a two-position three-way valve 8. A cooling circulator (a prior art technology, not shown in the diagram, and will not be elaborated upon here) is fixedly connected between the main interfaces of the two two-position three-way valves 8. The cooling channels 7, together with the two-position three-way valves 8 and the cooling circulator, form a controllable cooling-preheating circulation system. That is, the two-position three-way valves 8 switch the flow direction of the coolant (cooling channel → preheating channel) to achieve "rapid cooling at low temperatures" and "residual heat circulation" in the cooling channels 7. The system switches between two modes, "preheating" and "cooling," while avoiding mixing of the preheating coolant with the cooling coolant used for cooling, which could affect the cooling and molding effect. Specifically, during the cooling stage, the cooling circulator outputs low-temperature coolant, which quickly reduces the mold temperature through the cooling chamber 7, accelerating plastic solidification. The coolant that has absorbed heat is discharged into the transition container. After demolding, the coolant that has absorbed heat in the transition container is reintroduced into the chamber to preheat the mold, preventing the low-temperature mold from causing the melt to cool prematurely during subsequent injection molding, which would affect the smoothness of mold filling. Meanwhile, the coolant used for preheating is discharged into the internal container of the cooling circulator for the next cycle.

[0028] Furthermore, the fixed mold part 5 has multiple flow chambers 9 arranged in a linear array on one side, and several lower cavities 10 are formed on the inner wall of the flow chambers 9. The moving mold part 6 has multiple connecting blocks 12 arranged in a linear array on one side, and the connecting blocks 12 are embedded in the flow chambers 9. Several upper cavities 13 are formed on one side of the connecting blocks 12. The upper cavities 13 match the lower cavities 10. After the upper cavities 13 and the lower cavities 10 are closed, a complete molding cavity is formed (such as the hemispherical structure of a ball head). At the same time, through the parting surface design of the upper and lower cavities 10 (such as being located in the middle of the ball head), it is convenient for subsequent ejection and demolding, avoiding damage to the appearance of the product. The linear array of flow chambers 9 integrates multiple lower cavities 10 and upper cavities 13, realizing multi-cavity synchronous injection molding, which has high production efficiency.

[0029] A through groove 11 is provided between two adjacent flow chambers 9, and the adjacent flow chambers 9 are connected through the through groove 11, so that the liquid raw material injected into the mold assembly 4 by the injection unit 1 can flow evenly into each flow chamber 9.

[0030] There is a gap between the connecting block 12 and the flow chamber 9. During the injection molding stage, liquid raw material will flow into the gap and shrink and tighten the connecting block 12 after cooling. When the moving mold part 6 is separated from the fixed mold part 5, the multiple badminton shuttlecock head blanks after molding can move with the moving mold part 6 so as to facilitate the ejection component 3 for product demolding.

[0031] The operation process of this embodiment is as follows: First, the connecting block 12 of the moving mold part 6 is embedded into the flow chamber 9 of the fixed mold part 5. The upper cavity 13 and the lower cavity 10 are closed to form a complete molding cavity. Then, the injection unit 1 injects the molten plastic raw material into the mold assembly 4 under high pressure. The raw material is evenly distributed to each molding cavity through the flow chamber 9 and the through groove 11, filling the upper cavity 13 and the lower cavity 10 to form the badminton shuttlecock head preform. The cooling circulator delivers low-temperature coolant to the cooling channel 7 of the fixed mold part 5 and the moving mold part 6 through the two-position three-way valve 8 to quickly reduce the mold temperature and solidify the molten raw material. After cooling, the moving mold part 6 separates from the fixed mold part 5, and the ejector assembly 3 moves to eject the badminton shuttlecock head preform on the moving mold part 6 from the cavity, completing the demolding and entering the next production cycle. During the demolding process, the coolant that has absorbed heat is reintroduced into the cooling channel 7 to preheat the mold and prevent the low-temperature mold from causing the raw material to cool and harden prematurely during subsequent injection, ensuring smooth mold filling.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An injection molding apparatus for badminton shuttlecock production, comprising an injection unit (1) and a molding unit (2) connected in series, characterized in that: The molding unit (2) includes an ejection assembly (3) and a mold assembly (4). The mold assembly (4) includes a fixed mold part (5) and a moving mold part (6). Cooling channels (7) are provided inside both the fixed mold part (5) and the moving mold part (6). The ports of the two cooling channels (7) located on the same side are fixedly connected to a two-position three-way valve (8). A cooling circulator is fixedly connected between the main interfaces of the two two-position three-way valves (8).

2. The injection molding device for badminton shuttlecock production according to claim 1, characterized in that, The fixed mold (5) has multiple sets of flow chambers (9) arranged in a linear array on one side, and the inner wall of the flow chamber (9) has several lower cavities (10).

3. The injection molding device for badminton shuttlecock production according to claim 2, characterized in that, A through slot (11) is provided between two adjacent circulation chambers (9).

4. The injection molding device for badminton shuttlecock production according to claim 3, characterized in that, The moving module (6) has multiple sets of connecting blocks (12) fixed in a linear array on one side, and the connecting blocks (12) are embedded in the flow chamber (9).

5. The injection molding device for badminton shuttlecock production according to claim 4, characterized in that, There is a gap between the connecting block (12) and the flow chamber (9).

6. The injection molding device for badminton shuttlecock production according to claim 5, characterized in that, The connecting block (12) has several upper cavities (13) on one side, and the upper cavities (13) match the lower cavities (10).

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