Plastic coating mold for skylight flexible shaft
By incorporating locking and positioning structures in the mold design, the problem of exposed steel wires during the plastic coating process of the sunroof flexible shaft was solved, improving the coating qualification rate and usage stability, and enhancing the user experience.
Patent Information
- Application Number
- CN202422897816.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing automotive sunroof flexible shafts are prone to exposed steel wires during the plastic coating process, resulting in low plastic coating pass rate and abnormal noises during use, affecting user experience.
The plastic coating mold includes a core, positioning components, and locking components. The tail of the flexible shaft is locked by a moving locking block and a fixed locking block. The positioning slider aligns with the fixed mold groove to position the head of the flexible shaft, ensuring that the flexible shaft does not shift during the plastic coating process. Combined with the sliding drive component and the sliding guide rod, stable fixation is achieved.
This effectively avoids exposed steel wire parts, improves the plastic coating qualification rate, eliminates the risk of abnormal noise, and enhances the production and use quality of flexible shafts.
Smart Images

Figure CN223532902U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts manufacturing technology, and in particular to a plastic-coated mold for a flexible shaft used in automotive sunroofs. Background Technology
[0002] Flexible shafts are important components used in the opening and closing of car sunroofs and sunshades. Their main function is to connect the sliding mechanism end and the guide end when the sunroof and sunshade are opened and closed.
[0003] Most existing flexible shafts are formed by coating a steel wire component with a plastic coating layer using a coating mold. However, during the coating process, the steel wire component placed in the cavity of the coating mold is easily displaced by the liquid coating material, resulting in partial exposure of the steel wire component after coating. This leads to a low coating yield rate and consequently a low overall production yield rate for flexible shafts. Furthermore, once a flexible shaft with exposed steel wire is installed in a car sunroof, it is prone to scraping and making noises during the operation of the sunroof rails, affecting the user's driving experience. Utility Model Content
[0004] To address the issue of exposed steel wires during the plastic coating process of flexible shafts, this invention proposes a plastic coating mold for sunroof flexible shafts. The mold includes a core, a positioning component, and a locking component. The core comprises a movable core and a fixed core. The movable core has a movable mold groove, and the fixed core has a fixed mold groove. The movable mold groove and the fixed mold groove mate to form a plastic coating cavity. The positioning component includes a positioning slider inserted into a clamping groove on the core. The positioning slider has a positioning groove, which mates with the positioning end of the fixed mold groove to form a positioning groove communicating with the plastic coating cavity. The locking component includes a movable locking block and a fixed locking block. The movable locking block is embedded in the movable core, and the fixed locking block is embedded in the fixed core. The movable locking block and the fixed locking block mate to form a locking groove communicating with the plastic coating cavity. When using this new sunroof flexible shaft coating mold to coat the sunroof flexible shaft, the tail of the flexible shaft to be coated is locked by the locking groove formed by the engagement of the moving locking block and the fixed locking block in the locking component. The head of the flexible shaft to be coated is positioned by the positioning groove formed by the engagement of the positioning slide on the positioning slider and the positioning end of the fixed mold groove. This fixes the flexible shaft to be coated in the coating cavity, preventing it from being misaligned due to the impact of the coating liquid material during the coating process. This also prevents the steel wire parts from being exposed after the coating is completed, which would affect its use.
[0005] Preferably, the moving mold core is provided with a moving mold clamping groove, and the fixed mold core is provided with a fixed mold clamping groove, and the moving mold clamping groove and the fixed mold clamping groove are engaged to form the clamping groove. In this way, the engagement of the moving mold clamping groove and the fixed mold clamping groove to form a clamping groove for accommodating the positioning slider facilitates the adjustment of the position of the positioning slider as needed during the mold opening and closing states of the sunroof flexible shaft coating mold of this utility model. It also facilitates the operator in removing the coated flexible shaft and inserting the flexible shaft to be coated when the sunroof flexible shaft coating mold of this utility model is in the mold opening state.
[0006] Preferably, the positioning component includes a sliding drive component, which is mounted on the fixed template via a positioning plate and connected to the positioning slider. The sliding drive component drives the positioning slider to slide along the extension direction of the coating cavity. Thus, during the coating process, the positioning slider can be adjusted to the appropriate position as needed by using the sliding drive component to slide along the extension direction of the coating cavity, making adjustment simple and convenient.
[0007] Preferably, the positioning component includes a connecting block, and the positioning side of the connecting block is connected to the positioning slider, while the connecting side of the connecting block is connected to the drive rod of the sliding drive component. This allows for a simple and convenient connection between the positioning slider and the drive rod of the sliding drive component using the connecting block. Furthermore, the positioning side of the connecting block is provided with a "T"-shaped positioning connecting groove, and the connecting end of the positioning slider is engaged in the positioning connecting groove and fixed with bolts. This "T"-shaped positioning connecting groove on the positioning side of the connecting block facilitates the engagement of the connecting end of the positioning slider with the connecting block and prevents the positioning slider from detaching from the connecting block, thus improving the coating efficiency. More preferably, the connecting side of the connecting block is provided with a "T"-shaped connecting slot for connecting the drive rod. This allows for a simple and convenient connection when the drive rod of the sliding drive component is connected to the connecting side of the connecting block, as long as the free end of the drive rod is engaged in the "T"-shaped connecting slot.
[0008] Preferably, the fixed template is provided with a slide rail, and the two ends of the connecting block are provided with sliding protrusions. The sliding protrusions are inserted into the slide rail and slide in the slide rail under the drive of the sliding drive component. In this way, when the positioning slider is driven to move by the sliding drive component, the slide rail on the fixed template and the sliding protrusions at both ends of the connecting block can be used to guide the slider, avoiding tilting or misalignment of the positioning slider and affecting the coating effect.
[0009] Preferably, the sunroof flexible shaft plastic coating mold includes a sliding guide rod, which is mounted on the positioning plate and connected to the connecting block via a connecting end. The central axis of the sliding guide rod is parallel to the extension direction of the plastic coating cavity. Thus, when the connecting block moves with the positioning slider under the drive of the sliding drive component, the sliding guide rod guides the sliding direction of the connecting block, preventing it from wobbling or misaligning during sliding and affecting the sliding effect. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the plastic-coated mold for the sunroof flexible shaft of this utility model;
[0011] Figure 2 for Figure 1 The diagram shows a top view of the mold for the flexible shaft of the sunroof.
[0012] Figure 3 for Figure 2 A schematic diagram of the AA cross-sectional structure in the diagram;
[0013] Figure 4 This is a schematic diagram of the structure of the sunroof flexible shaft plastic-coated mold during the removal of the moving mold;
[0014] Figure 5 for Figure 4 The diagram shows a top view of the mold for the flexible shaft of the sunroof.
[0015] Figure 6 for Figure 5 Schematic diagram of the BB cross-sectional structure in the middle;
[0016] Figure 7 for Figure 5 A schematic diagram of the CC cross-sectional structure. Detailed Implementation
[0017] Below, in conjunction with Figure 1-7 This paper provides a detailed description of the plastic-coated mold for the flexible shaft of the sunroof in this utility model.
[0018] like Figure 1-7As shown, the plastic-coated mold for the sunroof flexible shaft of this utility model includes a mold core, a positioning component, and a locking component. The mold core includes a moving mold core 11 and a fixed mold core 12. The moving mold core 11 is provided with a moving mold groove 111, and the fixed mold core 12 is provided with a fixed mold groove 121. The moving mold groove 111 and the fixed mold groove 121 are engaged to form a plastic-coated cavity (not shown in the figure). The positioning component includes a positioning slider 21, which is inserted into a clamping groove (not shown in the figure) on the mold core. The positioning slider 21 is provided with a positioning slide groove 211, and the positioning slide groove 211 is engaged with the positioning end of the fixed mold groove 121 to form a positioning groove communicating with the plastic-coated cavity (not shown in the figure). The locking component includes a moving locking block 31 and a fixed locking block 32. The moving locking block 31 is embedded in the moving mold core 11, and the fixed locking block 32 is embedded in the fixed mold core 12. The moving locking block 31 and the fixed locking block 32 are engaged to form a locking groove 33 communicating with the plastic-coated cavity. When using this novel sunroof flexible shaft coating mold to coat the sunroof flexible shaft, the tail of the flexible shaft to be coated is locked by the locking groove 33 formed by the engagement of the movable locking block 31 and the fixed locking block 32 in the locking component. The head of the flexible shaft to be coated is positioned by the positioning groove 211 on the positioning slider 21 engaging with the positioning end of the fixed mold groove 121. This fixes the flexible shaft to be coated within the coating cavity, preventing it from shifting due to the impact of the coating liquid material during the coating process. This also prevents the steel wire from being exposed after coating, which would affect its use. Preferably, the movable mold core 11 is provided with a movable mold clamping groove (not shown in the figure), and the fixed mold core 12 is provided with a fixed mold clamping groove (not shown in the figure). The movable mold clamping groove and the fixed mold clamping groove engage to form a clamping groove. In this way, the moving mold clamping groove and the fixed mold clamping groove are combined to form a clamping groove for accommodating the positioning slider. This makes it convenient to adjust the position of the positioning slider 21 as needed when the sunroof flexible shaft plastic coating mold of this utility model is in the mold opening and closing state. It also makes it convenient for the operator to take out the plastic-coated flexible shaft and put in the flexible shaft to be plastic-coated when the sunroof flexible shaft plastic coating mold of this utility model is in the mold opening state.
[0019] like Figure 1-7As shown, the positioning component includes a sliding drive component 22, which is mounted on the fixed template 13 via a positioning plate 4 and connected to the positioning slider 21. The sliding drive component 22 drives the positioning slider 21 to slide along the extension direction of the plastic coating cavity. Thus, during the plastic coating process, the positioning slider 21 can be adjusted to the corresponding position as needed by using the sliding drive component 22 to drive it along the extension direction of the plastic coating cavity; adjustment is simple and convenient. Preferably, the sliding drive component 22 can be a hydraulic cylinder or a pneumatic cylinder, which is convenient to select and easy to control. Preferably, the positioning component includes a connecting block 23, with the positioning side of the connecting block 23 connected to the positioning slider 21, and the connecting side of the connecting block 23 connected to the drive rod 221 of the sliding drive component 22. Thus, the connecting block 23 connects the positioning slider 21 and the drive rod 221 of the sliding drive component 22, making the connection simple and convenient. Preferably, the positioning side of the connecting block 23 is provided with a "T"-shaped positioning connecting groove 231, and the connecting end of the positioning slider 21 is engaged in the positioning connecting groove 231 and fixed by bolts 24. Thus, a "T"-shaped positioning connection groove 231 is provided on the positioning side of the connecting block 23. This facilitates the connection end of the positioning slider 21 to be engaged in the positioning connection groove 231 when connected to the connecting block 23, and also prevents the positioning slider 21 from detaching from the connecting block 23, which would affect the coating efficiency. Preferably, the connecting side of the connecting block 23 is provided with a "T"-shaped connection slot 232 for connecting with the drive rod 221. Thus, when the drive rod 221 of the sliding drive member 22 is connected to the connecting side of the connecting block 23, it is only necessary to engage the free end of the drive rod 221 in the "T"-shaped connection slot 232, making the connection simple and convenient. Preferably, a slide rail (not shown in the figure) is provided on the fixed template 4, and sliding protrusions (not shown in the figure) are provided at both ends of the connecting block 23. The sliding protrusions are inserted into the slide rail and slide in the slide rail under the drive of the sliding drive member 22. Thus, when the sliding drive 22 drives the positioning slider 21 to move, the guide can be achieved by the sliding track on the fixed template 4 and the sliding protrusions at both ends of the connecting block 23, preventing the positioning slider 21 from tilting or misaligning, which would affect the coating effect. Preferably, the connecting slot 232 is located in the middle of the connecting block 23. In this way, the drive rod 221 of the sliding drive 22 is connected to the connecting block 23 in the middle, and the two positioning sliders 21 located at both ends of the connecting block 23 can be driven to slide smoothly through the connecting block 23, preventing the positioning sliders 21 from tilting or misaligning, which would affect the coating efficiency.
[0020] like Figure 1-7As shown, the sunroof flexible shaft plastic coating mold of this utility model also includes a sliding guide rod 5. The sliding guide rod 5 is mounted on the positioning plate 4 and connected to the connecting block 23 through a connecting end, and the central axis of the sliding guide rod 5 is parallel to the extension direction of the plastic coating cavity. In this way, when the connecting block 23 drives the positioning slider 21 to move under the drive of the sliding drive member 22, the sliding guide rod 5 can be used to guide the sliding direction of the connecting block 23, so as to avoid the connecting block 23 shaking and misaligning during the sliding process, which would affect the sliding effect.
Claims
1. A mold for encapsulating a flexible shaft for a sunroof, characterized in that, The sunroof flexible shaft plastic coating mold includes a mold core, a positioning component, and a locking component. The mold core includes a movable mold core and a fixed mold core. The movable mold core has a movable mold groove, and the fixed mold core has a fixed mold groove. The movable mold groove and the fixed mold groove are engaged to form a plastic coating cavity. The positioning component includes a positioning slider, which is inserted into a clamping groove on the mold core. The positioning slider has a positioning groove, and the positioning groove is engaged with the positioning end of the fixed mold groove to form a positioning groove communicating with the plastic coating cavity. The locking component includes a movable locking block and a fixed locking block. The movable locking block is embedded in the movable mold core, and the fixed locking block is embedded in the fixed mold core. The movable locking block and the fixed locking block are engaged to form a locking groove communicating with the plastic coating cavity.
2. The sunroof flexible shaft plastic-coated mold according to claim 1, characterized in that, The moving mold core is provided with a moving mold clamping groove, and the fixed mold core is provided with a fixed mold clamping groove, and the moving mold clamping groove and the fixed mold clamping groove are engaged to form the clamping groove.
3. The sunroof flexible shaft plastic-coated mold according to claim 1 or 2, characterized in that, The positioning component includes a sliding drive component, which is mounted on a fixed template via a positioning plate and connected to the positioning slider. The sliding drive component drives the positioning slider to slide along the extension direction of the plastic-coated cavity.
4. The sunroof flexible shaft plastic-coated mold according to claim 3, characterized in that, The positioning component includes a connecting block, and the positioning side of the connecting block is connected to the positioning slider, and the connecting side of the connecting block is connected to the driving rod of the sliding drive component.
5. The sunroof flexible shaft plastic-coated mold according to claim 4, characterized in that, The positioning side of the connecting block is provided with a "T"-shaped positioning connecting groove, and the connecting end of the positioning slider is locked in the positioning connecting groove and fixed with bolts.
6. The sunroof flexible shaft plastic-coated mold according to claim 5, characterized in that, The connecting side of the connecting block is provided with a "T"-shaped connecting slot for connecting with the drive rod.
7. The sunroof flexible shaft plastic-coated mold according to claim 4, characterized in that, The fixed template is provided with a slide rail, and the two ends of the connecting block are provided with sliding protrusions. The sliding protrusions are inserted in the slide rail and slide in the slide rail under the drive of the sliding drive member.
8. The sunroof flexible shaft plastic-coated mold according to claim 4, characterized in that, The sunroof flexible shaft plastic coating mold includes a sliding guide rod, which is mounted on the positioning plate and connected to the connecting block through a connecting end, and the central axis of the sliding guide rod is parallel to the extension direction of the plastic coating cavity.