A molding equipment for boomerang production

By using a split mold design and gradient cooling technology, the problems of high production cost and low efficiency in traditional boomerang production have been solved, enabling low-cost and high-efficiency production of multiple boomerang models. Optimized material flowability reduces material shrinkage and deformation, and improves production accuracy.

CN224311025UActive Publication Date: 2026-06-02NINGBO HAISHU FUKAI MOULD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO HAISHU FUKAI MOULD CO LTD
Filing Date
2025-05-16
Publication Date
2026-06-02

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Abstract

This utility model relates to the field of plastic or composite material processing technology, specifically to a molding equipment for boomerang production. It includes a frame, on which a molding die module is mounted. A hydraulic device is installed above the molding die module. The molding die module includes a lower die and an upper die, which are designed separately. Each die contains a template, and the template surface has biomimetic grooves matching the boomerang airfoil. This utility model overcomes the shortcomings of existing technologies by filling the raw material into the template cavity and heating it with a PID temperature-controlled heating wire embedded inside the die. The heating area is divided into a core zone and an edge zone, with independent temperature adjustment to optimize material flow. After reaching the melting temperature, hydraulic pressure is applied for molding. The die has an internal spiral cooling channel and an external circulating water cooling system, supporting a gradient cooling mode.
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Description

Technical Field

[0001] This utility model relates to the field of plastic or composite material processing technology, specifically to a molding equipment for boomerang production. Background Technology

[0002] Boomerangs come in various shapes, including "V", banana, bell, trilobal, cross, multi-lobed, and others. The cross-section of the boomerang's wings ensures that the air lift force acting on the boomerang is in the upward direction, stabilizing the boomerang. Like a gyroscope, the boomerang's axis of rotation rotates in a straight line. The lift and stability cause the boomerang to rise, and the rotation of the axis of rotation causes the boomerang to fly back.

[0003] As a special-shaped flying device, the boomerang has high requirements for structural precision and symmetry in its molding process. Traditional production methods mostly use manual injection molding or compression molding, which has the following drawbacks: different models of boomerangs require the replacement of the entire set of molds, which is costly and inefficient. In addition, traditional cooling methods are prone to material shrinkage and deformation.

[0004] To address the problems existing in the aforementioned technologies, a forming device for boomerang production is proposed. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a forming equipment for boomerang production, which overcomes the shortcomings of the prior art and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a forming equipment for boomerang production, comprising a frame, a forming mold module being provided on the frame, and a hydraulic device being installed above the forming mold module;

[0007] The molding die module includes a lower die and an upper die. The lower die and the upper die are designed separately. Each of them is equipped with a template. The surface of the template is provided with a biomimetic groove that matches the boomerang wing shape.

[0008] Both the lower and upper molds are equipped with PID temperature control heating modules and spiral water-cooled flow channels.

[0009] The raw material is filled into the mold cavity and heated by the PID temperature-controlled heating wire embedded in the mold. The heating area is divided into a core area and an edge area, and the temperature is independently adjusted to optimize the material flow. After reaching the melting temperature, hydraulic pressure is applied for molding. The mold is designed with a spiral cooling channel and an external circulating water cooling system to support gradient cooling mode. During the cooling stage, the temperature is gradually reduced to below 50°C before the finished product is removed.

[0010] As a preferred technical solution of this utility model, the hydraulic equipment includes a cross frame, a light column, and a hydraulic pressurization system. The left and right ends of the upper mold are slidably connected to the light column, and the hydraulic pressurization system is configured to be connected between the cross frame and the upper mold.

[0011] The hydraulic pressurization system can drive the upper mold to move downwards, thereby pressurizing and molding the raw material between the lower and upper molds.

[0012] As a preferred technical solution of this utility model, both the lower mold and the upper mold are formed with template cavities that match the template, and the inner wall of the template cavity is provided with a magnetic positioning groove, and the outer wall of the template is fixedly installed with a positioning block that is magnetically attracted to the magnetic positioning groove.

[0013] The magnetic connection template can be replaced in less than 3 minutes, supporting small-batch, multi-model production.

[0014] As a preferred technical solution of this utility model, the PID temperature control heating module includes a first PID temperature control heating wire located in the middle region of the template cavity and a second PID temperature control heating wire located in the edge region of the first PID temperature control heating wire.

[0015] The heating zone is divided into a core zone and an edge zone, with independent temperature adjustments to optimize material flowability.

[0016] As a preferred technical solution of this utility model, the spiral water cooling channel includes an external circulating water inlet connector, an external circulating water outlet connector, a first spiral cooling channel located in the side region of the template cavity, and a second spiral cooling channel located in the middle region of the template cavity.

[0017] The mold is designed with a spiral cooling channel inside and an external circulating water cooling system, which supports gradient cooling mode. The circulating water cooling system saves 30% of water and has a heat recovery rate of ≥65%.

[0018] As a preferred embodiment of this utility model, a buffer pad is provided on the outer side of the lower mold, and a spring is fixedly connected between the buffer pad and the lower mold. A pressure sensor is fixedly installed on the lower mold on one side of the buffer pad.

[0019] Equipped with a buffer pad to prevent mold damage from impact during mold closing, and a pressure sensor provides real-time feedback of data from the hydraulic pressurization system.

[0020] As a preferred embodiment of this utility model, a control panel is fixedly installed on the outer wall of the frame, and a guide column adapted to the guide cylinder is fixedly installed on the outer side of the upper mold.

[0021] The control panel can link temperature, pressure, and cooling parameters, preset process formulas for various boomerang models, and the guide column can be precisely aligned with the guide cylinder to ensure the high precision requirements of product manufacturing.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] The raw material is filled into the mold cavity and heated by a PID temperature-controlled heating wire embedded in the mold. The heating area is divided into a core area and an edge area, and the temperature is independently adjusted to optimize the material flow. After reaching the melting temperature, hydraulic pressure is applied for molding. The mold is designed with a spiral cooling channel and an external circulating water cooling system to support gradient cooling mode. During the cooling stage, the temperature is gradually reduced to below 50°C before the finished product is removed. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the molding die module of this utility model;

[0026] Figure 3 This is a schematic diagram of the assembly of the lower mold and the template of this utility model;

[0027] Figure 4 This is a schematic cross-sectional view of the lower mold of this utility model;

[0028] Figure 5 For the present utility model Figure 4 Enlarged view of a portion of point A in the middle;

[0029] Figure 6 For the present utility model Figure 4 A magnified view of a portion of point B in the middle.

[0030] In the diagram: 1. Frame; 2. Control panel; 3. Horizontal frame; 4. Light column; 5. Hydraulic pressurization system; 6. Lower mold; 7. Upper mold; 8. Template cavity; 9. Magnetic positioning groove; 10. Template; 11. Positioning block; 12. Guide cylinder; 13. Buffer pad; 14. Spring; 15. Pressure sensor; 16. External circulating water inlet connector; 17. External circulating water outlet connector; 18. First spiral cooling channel; 19. Second spiral cooling channel; 20. First PID temperature-controlled heating wire; 21. Second PID temperature-controlled heating wire; 22. Guide column. Detailed Implementation

[0031] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-6A boomerang production forming equipment includes a frame 1, a forming mold module is provided on the frame 1, and a hydraulic device is installed above the forming mold module;

[0033] The molding die module includes a lower die 6 and an upper die 7. The lower die 6 and the upper die 7 adopt a split design, and each of them is provided with a template 10. The surface of the template 10 is provided with a biomimetic groove that matches the boomerang wing shape.

[0034] Both the lower mold 6 and the upper mold 7 are equipped with PID temperature control heating modules and spiral water cooling channels. The raw material is filled into the cavity of the template 10 and heated by the PID temperature control heating wire embedded in the mold. The heating area is divided into a core area and an edge area, and the temperature is independently adjusted to optimize the material flow. After reaching the melting temperature, hydraulic pressure is applied for molding. The mold is designed with spiral cooling channels and an external circulating water cooling system, which supports gradient cooling mode. During the cooling stage, the temperature is gradually reduced to below 50°C before the finished product is removed.

[0035] Specifically, the hydraulic equipment includes a crossbeam 3, a light column 4, and a hydraulic pressurization system 5. The left and right ends of the upper mold 7 are slidably connected to the light column 4, and the hydraulic pressurization system 5 is configured and connected between the crossbeam 3 and the upper mold 7. The hydraulic pressurization system 5 can drive the upper mold 7 to move downward and realize the pressurization and molding of the raw material between the lower mold 6 and the upper mold 7.

[0036] Specifically, both the lower mold 6 and the upper mold 7 have template cavities 8 that match the template 10, and the inner wall of the template cavity 8 is provided with a magnetic positioning groove 9. The outer wall of the template 10 is fixedly installed with a positioning block 11 that is magnetically attracted to the magnetic positioning groove 9. The replacement time of the magnetically connected template 10 is less than 3 minutes, which supports small-batch multi-model production.

[0037] Specifically, the PID temperature control heating module includes a first PID temperature control heating wire 20 located in the central region of the template cavity 8 and a second PID temperature control heating wire 21 located in the edge region of the first PID temperature control heating wire 20. The heating area is divided into a core area and an edge area, and the temperature is independently adjusted to optimize the material flowability.

[0038] Specifically, the spiral water cooling channel includes an external circulating water inlet connector 16, an external circulating water outlet connector 17, a first spiral cooling channel 18 located in the side area of ​​the template cavity 8, and a second spiral cooling channel 19 located in the middle area of ​​the template cavity 8. The mold is designed with a spiral cooling channel and an external circulating water cooling system, which supports gradient cooling mode. The circulating water cooling system saves 30% of water and has a heat recovery rate of ≥65%.

[0039] Specifically, a buffer pad 13 is provided on the outer side of the lower mold 6, and a spring 14 is fixedly connected between the buffer pad 13 and the lower mold 6. A pressure sensor 15 is fixedly installed on the lower mold 6 on one side of the buffer pad 13. The buffer pad 13 is provided to prevent the mold from being damaged by the impact of mold closing. The pressure sensor provides real-time feedback of the data from the hydraulic pressurization system 5.

[0040] Specifically, a control panel 2 is fixedly installed on the outer wall of the frame 1, and a guide post 22 adapted to the guide cylinder 12 is fixedly installed on the outer side of the upper mold 7. The control panel 2 can link temperature, pressure and cooling parameters, and preset process formulas for various boomerang models. The guide post 22 can be precisely aligned with the guide cylinder 12 to ensure the high precision requirements of product production.

[0041] Working principle: The raw material is filled into the cavity of the template 10. The temperature is controlled by the PID temperature-controlled heating wire embedded in the mold. The heating area is divided into the core area and the edge area, and the temperature is independently adjusted to optimize the material flow. After reaching the melting temperature, hydraulic pressure is applied for molding. The mold is designed with a spiral cooling channel and an external circulating water cooling system to support gradient cooling mode. During the cooling stage, the temperature is gradually reduced to below 50°C before the finished product is removed.

[0042] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A forming device for boomerang production, comprising a frame (1), characterized in that: A forming mold module is provided on the frame (1), and a hydraulic device is installed above the forming mold module; The molding die module includes a lower die (6) and an upper die (7). The lower die (6) and the upper die (7) are designed separately, and each has a template (10) inside. The surface of the template (10) is provided with a biomimetic groove that matches the boomerang wing shape. The lower mold (6) and the upper mold (7) are both equipped with PID temperature control heating modules and spiral water cooling channels.

2. The boomerang production forming equipment according to claim 1, characterized in that: The hydraulic equipment includes a cross frame (3), a light column (4), and a hydraulic pressurization system (5). The left and right ends of the upper mold (7) are slidably connected to the light column (4), and the hydraulic pressurization system (5) is configured to be connected between the cross frame (3) and the upper mold (7).

3. The forming equipment for boomerang production according to claim 1, characterized in that: Both the lower mold (6) and the upper mold (7) have template cavities (8) that match the template (10), and the inner wall of the template cavity (8) is provided with a magnetic positioning groove (9), and the outer wall of the template (10) is fixedly installed with a positioning block (11) that is magnetically attracted to the magnetic positioning groove (9).

4. The forming equipment for boomerang production according to claim 1, characterized in that: The PID temperature control heating module includes a first PID temperature control heating wire (20) located in the central region of the template cavity (8) and a second PID temperature control heating wire (21) located in the edge region of the first PID temperature control heating wire (20).

5. The forming equipment for boomerang production according to claim 1, characterized in that: The spiral water cooling channel includes an external circulation inlet connector (16), an external circulation outlet connector (17), a first spiral cooling channel (18) located in the side region of the template cavity (8), and a second spiral cooling channel (19) located in the middle region of the template cavity (8).

6. The forming equipment for boomerang production according to claim 1, characterized in that: A buffer pad (13) is provided on the outer side of the lower mold (6), and a spring (14) is fixedly connected between the buffer pad (13) and the lower mold (6). A pressure sensor (15) is fixedly installed on the lower mold (6) on one side of the buffer pad (13).

7. The forming equipment for boomerang production according to claim 1, characterized in that: The frame (1) is fixedly mounted with a control panel (2), and the upper mold (7) is fixedly mounted with a guide column (22) that is compatible with the guide cylinder (12).