A forming lower mold spraying unit and assembly equipment of a carbon fiber badminton racket production line

Abstract

The utility model discloses a kind of forming lower mould spray units and general assembly equipment of carbon fiber badminton racket production line, forming lower mould has the forming lower mould cavity of carbon fiber badminton racket, under the drive of the conveying unit of production line, movement, spray unit includes the box with containing cavity, and spray assembly is arranged in containing cavity, import and export suitable for the conveying unit of production line pass are opened on the opposite two sides of box, spray assembly has at least one spray head, when conveying unit is conveyed to spray head below forming lower mould and stops movement, so that spray head is towards the inner surface of lower mould cavity, and the inner surface of lower mould cavity is sprayed release agent, ensure that each mould receives the release agent spray of same parameter, to overcome the problem that the release agent coating of lower mould cavity bottom surface and inner wall is not same when manual spraying operation is unstable, improve the uniformity and consistency of release agent coating.

Description

Technical Field

[0001] This utility model relates to the field of carbon fiber badminton racket manufacturing technology, and in particular to a molding lower mold spraying unit and assembly equipment for a carbon fiber badminton racket production line. Background Technology

[0002] With the continuous development of materials science and manufacturing technology, carbon fiber composite material technology has emerged. This technology boasts significant advantages such as high strength, lightweight, corrosion resistance, and fatigue resistance, leading to its widespread application in aerospace, automotive manufacturing, and sporting goods. Particularly in the sporting goods sector, the superior performance of carbon fiber composite materials has greatly enhanced the performance and user experience of sports equipment. Based on the advantages of carbon fiber composite material technology, carbon fiber badminton rackets have gradually become mainstream. To meet the production demands of high-quality carbon fiber badminton rackets, carbon fiber badminton racket processing equipment has been developed.

[0003] Patent document CN206124071U discloses an automated production line for the airless molding technology of carbon fiber badminton rackets. This automated production line is suitable for producing airless carbon fiber badminton rackets, replacing the traditional manual operation mode. It includes an automatic mold opening machine, a 90-degree non-powered roller line, a tunnel baking oven, a 180-degree powered roller line, a cooling tunnel oven, a flat powered roller line, a flipping powered roller line, and a 90-degree turning powered roller line.

[0004] However, in the technical solution provided by the above patent, the release agent is applied manually. The release agent has an impact on the human body, and the instability of the operation during manual spraying can easily lead to uneven spraying on the bottom surface of the lower mold cavity, thereby affecting the demolding effect. Utility Model Content

[0005] Therefore, it is necessary to address the problem of uneven mold release agent spraying affecting the mold release effect by providing a molding lower mold spraying unit and carbon fiber badminton racket assembly equipment for a carbon fiber badminton racket production line.

[0006] This application provides a molding lower mold spraying unit for a carbon fiber badminton racket production line. The molding lower mold has a molding lower mold cavity for the carbon fiber badminton racket. The molding lower mold moves under the drive of the production line's conveying unit. The spraying unit includes a box with a receiving cavity and a spraying assembly disposed within the receiving cavity. The box has inlets and outlets on opposite sides suitable for the conveying unit of the production line to pass through. The spraying assembly has at least one spray head. When the conveying unit transports the molding lower mold to below the spray head, it stops moving, causing the spray head to face the inner surface of the lower mold cavity and spray a release agent onto the inner surface of the lower mold cavity.

[0007] Optionally, the housing is further provided with a first sealing door and a second sealing door for sealing the inlet and outlet; the spray unit also includes an air knife assembly, the air knife assembly including a first air knife disposed on the side where the first sealing door is located, and a second air knife disposed on the side where the second sealing door is located.

[0008] Optionally, the housing is provided with a frame, the frame including columns and crossbeams disposed between the columns, the spray assembly is disposed on the crossbeams and moves along the crossbeams;

[0009] The column is equipped with a cover assembly, which covers the lower molding mold, is adapted to the lower molding mold, and moves along the column. The cover assembly is used to prevent the sprayed release agent from flowing into the conveying unit.

[0010] Optionally, the cover assembly includes a cover plate drive motor, guide columns, and a cover plate. The cover plate drive motor and guide columns are respectively disposed on the side walls of adjacent columns and connected to the cover plate.

[0011] Optionally, a pair of the cover plate drive motors are mounted on a pair of columns located diagonally opposite each other, and a pair of the guide columns are mounted on a pair of columns located at the other diagonal.

[0012] Optionally, the spray assembly includes multiple spray heads, each corresponding to a multiple spray station within the receiving cavity.

[0013] Optionally, the spray assembly includes a first guide structure and a first drive motor disposed on the crossbeam, a second guide structure and a second drive motor disposed on the first guide structure, a third guide structure and a third drive motor disposed on the second guide structure, and the spray head disposed on the third guide structure;

[0014] The first drive motor is used to drive the second guide structure to move along the first guide structure, the second drive motor is used to drive the third guide structure to move along the second guide structure, and the third drive motor is used to drive the spray head to move along the third guide structure.

[0015] Optionally, it also includes a collection tray, which is disposed below the receiving cavity and is used to collect the release agent sprayed by the spraying assembly.

[0016] Optionally, the cover plate is provided with clearance holes adapted to the lower forming mold, and the clearance holes are arranged corresponding to the positions of the plurality of spray heads.

[0017] This application also provides an assembly equipment for a carbon fiber badminton racket production line, including a conveying unit and a lower mold spraying unit for the forming process of the aforementioned carbon fiber badminton racket production line, wherein the conveying unit passes through the lower mold spraying unit for the forming process of the carbon fiber badminton racket production line.

[0018] Compared with the prior art, the technical solution provided in this application has the following advantages:

[0019] The enclosed working environment of the box in this application, along with the fixed-position, specifically oriented spray heads and automated spraying process, ensures that each mold receives release agent spraying at the same position, angle, and under the same pressure, flow rate, and time parameters. This fundamentally overcomes the problem of inconsistent release agent coating thickness on the bottom surface and inner wall of the lower mold cavity caused by unstable operation such as shaking, uneven speed, and distance changes during manual spraying. It significantly improves the uniformity and consistency of release agent coating, ultimately ensuring reliable demolding effect and stable product quality.

[0020] The molding die spraying unit of the aforementioned carbon fiber badminton racket production line achieves a closed-loop operation for the surface treatment process of the molding die through the combination of box structure design and sealing door components. The inlets and outlets on both sides of the box are aligned with the path of the circular conveyor unit, allowing the sliding base to continuously carry the molding die into and out of the spraying area. When the molding die enters the box, the first and second sealing doors close simultaneously to form a sealed cavity. The spraying components then apply directional spraying to the molding die within this enclosed space, ensuring that the release agent evenly covers the surface of the molding die and effectively preventing splashing and diffusion of the release agent, thereby improving the demolding effect of the badminton racket. During the spraying process, the sealed structure of the box avoids interference from the external environment on the uniformity of the spraying and prevents contamination caused by the escape of the release agent mist. After the molding die has finished spraying, the sealing door opens, allowing it to move out of the box with the conveyor unit. This opening and closing linkage mechanism ensures seamless connection between the spraying operation and the conveying process, guaranteeing the stability of continuous production rhythm and improving processing efficiency. The modular housing design of the spray unit facilitates integration with upstream and downstream process units, while the sealed door structure reduces the ineffective loss of spray liquid, which is beneficial for process cost control and centralized waste liquid treatment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the molding lower mold spraying unit of a carbon fiber badminton racket production line provided in an embodiment of this application;

[0022] Figure 2 This is a partial structural diagram of the molding lower mold spraying unit of a carbon fiber badminton racket production line provided in an embodiment of this application;

[0023] Figure 3This is a partial structural diagram of the molding lower mold spraying unit of a carbon fiber badminton racket production line provided in an embodiment of this application;

[0024] Figure 4 This is a partial structural diagram of the molding lower mold spraying unit of a carbon fiber badminton racket production line provided in an embodiment of this application;

[0025] Figure 5 This is a partial structural diagram of the molding lower mold spraying unit of a carbon fiber badminton racket production line provided in an embodiment of this application;

[0026] Figure 6 This is a partial structural diagram of the molding lower mold spraying unit of a carbon fiber badminton racket production line provided in an embodiment of this application;

[0027] Figure 7 This is a top view schematic diagram showing the cooperation between the molding lower mold spraying unit and the conveying unit of the carbon fiber badminton racket production line provided in an embodiment of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100-Box body; 110-First sealing door; 120-Second sealing door; 200-Spray assembly; 210-Spray head; 220-First guide structure; 230-First drive motor; 240-Second guide structure; 250-Second drive motor; 260-Third guide structure; 270-Third drive motor; 300-Air knife assembly; 310-First air knife; 320-Second air knife; 400-Frame; 410-Column; 420-Crossbeam; 500-Cover assembly; 510-Cover plate drive motor; 520-Guide column; 530-Cover plate; 531-Avoidance hole; 600-Collection tray; 700-Conveying unit. Detailed Implementation

[0030] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0036] See Figure 1 and Figure 2 This utility model provides a spraying unit for the lower mold of a carbon fiber badminton racket production line. The lower mold has a lower mold cavity for forming the carbon fiber badminton racket. The lower mold moves under the drive of the conveying unit 700 of the production line. The spraying unit includes a box 100 with a receiving cavity and a spraying assembly 200 disposed in the receiving cavity. The box 100 has inlets and outlets on opposite sides suitable for the conveying unit 700 of the production line to pass through.

[0037] The spray assembly 200 has at least one spray head 210. When the conveying unit 700 conveys the lower mold to a position below the spray head 210, it stops moving, causing the spray head 210 to face the inner surface of the lower mold cavity and spray release agent onto the inner surface of the lower mold cavity.

[0038] The enclosed working environment of the box in this application, along with the fixed position, specific orientation of the spray head 210, and the automated spraying process, ensures that each mold receives release agent spraying at the same position, at the same angle, and with the same parameters (such as pressure, flow rate, and time). This fundamentally overcomes the problem of inconsistent release agent coating thickness on the bottom surface and inner wall of the lower mold cavity caused by unstable operation (such as shaking, uneven speed, and distance changes) during manual spraying. It significantly improves the uniformity and consistency of release agent coating, ultimately ensuring reliable demolding effect and product quality stability.

[0039] The carbon fiber badminton racket production line provided in this embodiment achieves high efficiency and stability in the spraying process through a closed box 100 design and integrated spraying components 200. The box 100 has inlets and outlets on both sides, allowing the conveyor unit 700 and the lower mold to pass continuously, while simultaneously creating a sealed space during spraying to prevent release agent splashing and external impurities from entering, ensuring a clean and stable spraying environment. This design not only improves the precision and consistency of the spraying process but also adapts to lower molds of different sizes and shapes, exhibiting strong versatility.

[0040] See Figure 1 and Figure 3In some embodiments, the housing 100 is further provided with a first sealing door 110 and a second sealing door 120 for sealing the inlet and outlet; the spray unit also includes an air knife assembly 300, which includes a first air knife 310 disposed on the side where the first sealing door 110 is located, and a second air knife 320 disposed on the side where the second sealing door 120 is located.

[0041] In this embodiment, the effect of the release agent treatment on the surface of the lower mold is enhanced by adding an air knife assembly 300 on the sealing side. When the first sealing door 110 and the second sealing door 120 are opened, the first air knife 310 and the second air knife 320 set on the door side are activated simultaneously, forming an airflow barrier along the moving direction of the lower mold. When the lower mold passes through the inlet and outlet of the housing 100 with the sliding base, the high-speed airflow generated by the air knife can strip the spray droplets remaining on the surface of the lower mold, while blocking the direct exchange of air inside and outside the housing 100. This design effectively controls the diffusion of the release agent during the spraying operation interval (the sealing door opening stage), preventing the spray liquid from transferring with the lower mold and contaminating the environment of adjacent workstations. The closed spraying stage after the sealing door is closed can ensure that the release agent evenly covers the surface of the lower mold. The linkage mechanism between the air knife assembly 300 and the opening and closing action of the sealing door enables precise matching of airflow control and process timing, maintaining the continuity of the spraying unit operation and reducing the ineffective loss of the spraying medium.

[0042] See Figure 1 and Figure 3 In some embodiments, the housing 100 is provided with a frame 400, which includes columns 410 and crossbeams 420 disposed between the columns 410. The spraying assembly 200 is disposed on the crossbeams 420 and moves along the crossbeams 420. The columns 410 are provided with a covering assembly 500, which covers the lower molding mold, is adapted to the lower molding mold, and moves along the columns 410. The covering assembly 500 is used to prevent the release agent from flowing into the conveying unit 700.

[0043] In this embodiment, the precision and protective properties of the spraying process are improved through the coordinated design of the frame 400 and the covering assembly 500. The uprights 410 of the frame 400 are symmetrically distributed along both sides of the housing 100, and the crossbeams 420 span between the uprights 410 to form a movable track. The spraying assembly 200 is connected to the crossbeams 420 via a sliding block, enabling reciprocating motion along the length of the lower mold, ensuring that the spray coverage matches the surface morphology of the lower mold. The covering assembly 500 forms a vertical guide structure with the uprights 410 via a slider. When the lower mold enters the housing 100, the covering assembly 500 descends along the uprights 410 until it fits against the top contour of the lower mold, forming a partially enclosed space surrounding the lower mold. The dynamic sealing mechanism of the covering assembly 500 prevents the release agent from seeping into the sliding base transmission components, ensuring the long-term reliability of the conveying unit 700. The linkage control of the spray assembly 200 and the cover assembly 500 ensures that the movement sequence of the two is precisely synchronized with the position of the lower mold, further optimizing the spraying efficiency and the utilization rate of the release agent.

[0044] See Figure 4 In some embodiments, the covering assembly 500 includes a cover plate drive motor 510, guide posts 520, and a cover plate 530. The drive motor and guide posts 520 are respectively disposed on the side walls of adjacent posts 410 and connected to the cover plate 530. The diagonal drive layout of the covering assembly 500 optimizes the accuracy and motion stability of the sealing and covering of the lower mold during molding.

[0045] In some embodiments, a pair of cover plate drive motors 510 are disposed on a pair of diagonally opposite columns 410, and a pair of guide columns 520 are disposed on a pair of diagonally opposite columns 410.

[0046] Specifically, in this embodiment, a pair of cover plate drive motors 510 and a pair of guide columns 520 are arranged diagonally. The cover plate drive motors 510 and guide columns 520 are installed diagonally on the side walls of adjacent columns 410, forming a symmetrical force system structure. When the lower forming mold enters the housing 100, the diagonally arranged pair of cover plate drive motors 510 start synchronously, pulling the cover plate 530 vertically downward along the guide columns 520 through the transmission mechanism until the edge of the cover plate 530 is tightly fitted with the top surface contour of the lower forming mold. The installation position of the guide columns 520 on the side walls of the columns 410 and the diagonal distribution of the drive motors form a spatial cross constraint, ensuring that the cover plate 530 maintains a horizontal posture during the lifting process, avoiding the skew phenomenon caused by unilateral force application.

[0047] See Figure 4In some embodiments, the spray assembly 200 includes multiple spray heads 210, each corresponding to a multiple spraying station within the receiving cavity, and corresponding clearance holes 531 are provided on the cover plate 530. The lower mold spraying unit of this carbon fiber badminton racket production line achieves precise zoned spraying through the matching design of the spray assembly 200 and the cover assembly 500. Multiple spray heads 210 are distributed along the length of the receiving cavity, each corresponding to a spraying station in a different area of ​​the lower mold. When the cover plate 530 is pressed down onto the surface of the lower mold, the clearance holes 531 on its surface are precisely aligned with the spray paths of each spray head 210. During the spraying process, the spray heads 210 pass through the clearance holes 531 of the cover plate 530 and directionally spray the release agent to specific locations on the surface of the lower mold, while the non-perforated areas of the cover plate 530 continuously prevent the release agent from diffusing to the surrounding area.

[0048] See Figure 5 In some embodiments, the spray assembly 200 includes a first guide structure 220 and a first drive motor 230 disposed on a crossbeam 420. The first guide structure 220 is provided with a second guide structure 240 and a second drive motor 250. The second guide structure 240 is provided with a third guide structure 260 and a third drive motor 270. The spray head 210 is disposed on the third guide structure 260. The first drive motor 230 is used to drive the second guide structure 240 to move along the first guide structure 220. The second drive motor 250 is used to drive the third guide structure 260 to move along the second guide structure 240. The third drive motor 270 is used to drive the spray head 210 to move along the third guide structure 260.

[0049] Specifically, in this embodiment, the first guide structure 220 and the first drive motor 230 are used to control the spray head 210 to move along the horizontal X-axis, the second guide structure 240 and the second drive motor 250 are used to control the spray head 210 to move along the horizontal Y-axis, and the third guide structure 260 and the third drive motor 270 are used to control the spray head 210 to move along the vertical Z-axis. Independent movement in the X, Y, and Z axes is achieved through the first guide structure 220, the second guide structure 240, and the third guide structure 260, respectively, giving the spray head 210 three-dimensional motion capabilities. This significantly enhances the spatial positioning flexibility of the spray head 210, enabling it to accurately adapt to badminton racket molding lower molds of different sizes, shapes, and heights, effectively expanding the applicability of the spray release agent. Three drive motors drive the spray heads 210 to move precisely along their respective guide structures. This allows for precise control of the relative position and distance between the spray heads 210 and the lower mold, ensuring accurate alignment of the spray heads 210 with the mold surface. This guarantees uniformity, consistency, and coverage of the release agent, effectively preventing missed areas or excessive application, thus improving release quality and extending the lifespan of the lower mold. This embodiment employs a linkage structure driven by motors, automating the spraying process and reducing manual intervention, minimizing uneven or unstable spraying caused by human factors. Furthermore, the three-axis guide structure supports rapid response of the spray heads 210 to the continuous transport of the lower mold, improving overall production rhythm and efficiency, and is suitable for continuous, large-scale production line operations. By precisely controlling the three-dimensional position and trajectory of the spray heads 210, directional and precise spraying of the release agent is achieved, reducing excessive use and waste, effectively lowering raw material costs, and minimizing environmental pollution risks, resulting in significant economic and environmental benefits.

[0050] Specifically, in this embodiment, the first guide structure 220 and the second guide structure 240 are both slide rails, and the third guide structure 260 is a guide structure in which a guide hole and a guide post 520 slide together. The first and second guide structures 240, both using slide rails, provide smooth and precise linear movement of the spray head 210 in the X and Y directions. The third guide structure 260, using a guide hole and guide post 520 sliding together, further enhances the stability of the spray head 210 during Z-axis movement, effectively preventing the spray head 210 from shaking or deviating, and ensuring that the spray head 210 is accurately positioned at the target spray location. The slide rail structure provides horizontal guidance, while the guide hole and guide post 520 provide vertical guidance. The combination of these two guide structures not only achieves precise three-dimensional positioning of the spray head 210 but also improves the rigidity of the overall structure, effectively reducing vibration and errors during the movement of the spray head 210, extending the service life of the device, and reducing maintenance costs.

[0051] See Figures 1 to 3In some embodiments, a collection tray 600 is also included, which is disposed below the receiving cavity to collect the release agent after spraying by the spraying assembly 200. By adding the collection tray 600 below the receiving cavity of the housing 100, the release agent recycling and management mechanism is improved. The collection tray 600 is connected to the bottom structure of the housing 100, and its surface covers the projected area directly below the spraying operation area. When the spraying assembly 200 sprays the surface of the lower mold, excess release agent not adhering to the lower mold falls naturally under gravity and is collected by the collection tray 600. The edge of the collection tray 600 is provided with a guide slope structure, which can direct the collected release agent into an external circulation pipeline or storage device, preventing the release agent from accumulating at the bottom of the housing 100.

[0052] See Figure 6 In some embodiments, the cover plate 530 is provided with clearance holes 531 adapted to the lower mold, and the clearance holes 531 are correspondingly positioned to correspond to the positions of multiple spray nozzles 210. In this embodiment, by providing clearance holes 531 on the cover plate 530 corresponding to the positions of the spray nozzles 210, the spray nozzles 210 can accurately pass through the cover plate 530 to spray the lower mold, while other areas of the cover plate 530 remain in close contact with the surface of the lower mold. This structure effectively prevents the release agent from flowing into the conveying unit 700 or other devices below from the gap between the cover plate 530 and the lower mold during the spraying process, avoiding contamination of the conveying system and subsequent workstations by the release agent, significantly reducing equipment maintenance difficulty and cleaning costs, effectively protecting the operational stability of the conveying unit 700, and extending the service life of the equipment.

[0053] Furthermore, the arrangement of multiple spray heads 210 and corresponding clearance holes 531 further enhances the overall efficiency of the spraying process. Multiple spray heads 210 simultaneously spray different areas of the lower mold, significantly increasing the coverage area and spraying efficiency per unit time of the spraying unit. This significantly reduces the operation time required for a single spray head 210 to spray each area individually, achieving a more efficient continuous production process. This structural layout of multiple spray heads 210 and clearance holes 531 allows the spray heads 210 to quickly and accurately reach and operate on their corresponding spraying areas, not only improving production speed but also ensuring the consistency and uniformity of the release agent coating on the surface of the lower mold, thereby guaranteeing the stability of the final product quality.

[0054] See Figure 7 An embodiment of this utility model also provides a carbon fiber badminton racket assembly equipment, including a conveying unit 700, and a molding lower mold spraying unit of the aforementioned carbon fiber badminton racket production line, wherein the conveying unit 700 passes through the molding lower mold spraying unit of the carbon fiber badminton racket production line.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A molding lower mold spraying unit for a carbon fiber badminton racket production line, wherein the molding lower mold has a molding lower cavity for the carbon fiber badminton racket, and the molding lower mold moves under the drive of a conveying unit (700) of the production line, characterized in that, The spray unit includes a housing (100) with a receiving cavity, and a spray assembly (200) disposed within the receiving cavity. The housing (100) has inlets and outlets on opposite sides for passage of a conveyor unit (700) of the production line. The spray assembly (200) has at least one spray head (210) that stops moving when the conveying unit (700) conveys the lower mold to below the spray head (210), such that the spray head (210) faces the inner surface of the lower mold cavity and sprays a release agent onto the inner surface of the lower mold cavity.

2. The molding lower mold spraying unit of the carbon fiber badminton racket production line according to claim 1, characterized in that, The housing (100) is also provided with a first sealing door (110) and a second sealing door (120) for sealing the inlet and outlet; The spray unit also includes an air knife assembly (300), which includes a first air knife (310) disposed on the side where the first sealing door (110) is located, and a second air knife (320) disposed on the side where the second sealing door (120) is located.

3. The molding lower mold spraying unit of the carbon fiber badminton racket production line according to claim 1, characterized in that, The housing (100) is provided with a frame (400), the frame (400) includes columns (410) and crossbeams (420) arranged between the columns (410), the spray assembly (200) is arranged on the crossbeams (420) and moves along the crossbeams (420); The column (410) is provided with a cover assembly (500), which covers the lower molding mold, is adapted to the lower molding mold, and moves along the column (410). The cover assembly (500) is used to block the sprayed release agent from flowing into the conveying unit (700).

4. The molding lower mold spraying unit of the carbon fiber badminton racket production line according to claim 3, characterized in that, The cover assembly (500) includes a cover drive motor (510), a guide post (520) and a cover (530). The cover drive motor (510) and the guide post (520) are respectively disposed on the side wall of the adjacent column (410) and connected to the cover (530).

5. The molding lower mold spraying unit of the carbon fiber badminton racket production line according to claim 4, characterized in that, A pair of the cover plate drive motors (510) are mounted on a pair of columns (410) located diagonally opposite each other, and a pair of the guide columns (520) are mounted on a pair of columns (410) located at the other diagonal.

6. The molding lower mold spraying unit of the carbon fiber badminton racket production line according to claim 4, characterized in that, The spray assembly (200) includes multiple spray heads (210), each corresponding to a multiple spray station within the receiving cavity.

7. The molding lower mold spraying unit of the carbon fiber badminton racket production line according to claim 6, characterized in that, The spray assembly (200) includes a first guide structure (220) and a first drive motor (230) disposed on the crossbeam (420), a second guide structure (240) and a second drive motor (250) disposed on the first guide structure (220), a third guide structure (260) and a third drive motor (270) disposed on the second guide structure (240), and the spray head (210) is disposed on the third guide structure (260); The first drive motor (230) is used to drive the second guide structure (240) to move along the first guide structure (220), the second drive motor (250) is used to drive the third guide structure (260) to move along the second guide structure (240), and the third drive motor (270) is used to drive the spray head (210) to move along the third guide structure (260).

8. The molding lower mold spraying unit of the carbon fiber badminton racket production line according to claim 1, characterized in that, It also includes a collection tray (600), which is disposed below the receiving cavity and is used to collect the release agent sprayed by the spraying assembly (200).

9. The molding lower mold spraying unit of the carbon fiber badminton racket production line according to claim 6, characterized in that, The cover plate (530) is provided with a clearance hole (531) adapted to the forming lower mold, and the clearance hole (531) is arranged in correspondence with the positions of the plurality of spray heads (210).

10. An assembly line for a carbon fiber badminton racket production line, comprising a conveying unit (700), characterized in that, It also includes a molding lower mold spraying unit of the carbon fiber badminton racket production line according to any one of claims 1-9, wherein the conveying unit (700) passes through the molding lower mold spraying unit of the carbon fiber badminton racket production line.

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