A protector ring mold and molding device

Abstract

This utility model belongs to the technical field of injection molding, and particularly relates to a protective ring mold and molding device, including an upper mold assembly, a lower mold assembly, and a mold core. When the upper mold assembly and the lower mold assembly are closed, the upper mold plate and the positioning assembly form an injection cavity, and the outer shell of the protective ring is formed by injection molding through the injection port on the periphery of the fiber rod. This utility model solves the problems of low efficiency and poor product consistency in manual operation. The replaceable design of the mold core adapts to the processing requirements of fiber rods of different specifications. The injection molding process makes the outer shell and the fiber rod form an integral structure, avoiding connection failure caused by insufficient glue curing. The cooperation between the positioning assembly and the upper and lower molds ensures the dimensional accuracy of the outer shell and eliminates the positioning misalignment defects common in manual operation.

Description

Technical Field

[0001] This utility model belongs to the technical field of injection molding, and in particular relates to a protective ring mold and molding device. Background Technology

[0002] In the field of drones, especially small multi-rotor drones, protective rings are usually installed around the propeller blades to protect them, improve flight safety, and prevent harm to the surrounding environment or people. To improve the structural strength of the protective rings and resist impact deformation, lightweight, high-strength fiber rods (such as fiberglass rods, carbon fiber rods, etc.) are often used as a support frame and fixed to the inside of the protective rings or to a specific structure.

[0003] Currently, the mainstream process for fixing the fiber rod to the outer ring of the protective ring is manual dispensing. This involves an operator manually applying adhesive (such as epoxy resin or hot melt adhesive) to the predetermined contact points between the fiber rod and the outer ring of the protective ring using a handheld dispensing device. The connection and fixation are achieved after the adhesive cures.

[0004] However, this manual adhesive application method has significant drawbacks:

[0005] (1) Low processing efficiency: The operation process relies on manual dispensing of adhesive one by one. Each connection point needs to be operated separately and the adhesive needs to be allowed to cure. This makes it impossible to achieve continuous and batch production, which seriously restricts the overall production cycle and capacity of the protective ring assembly.

[0006] (2) Unstable yield: It is difficult to guarantee the consistency of manual operation, and problems such as misalignment of dispensing position, too much or too little glue, uneven glue coverage, glue leakage or overflow are very likely to occur. These factors directly lead to insufficient bonding strength, structural eccentricity, poor appearance, or even connection failure, resulting in poor quality stability of the final product, high defect rate, and increased rework and scrap costs.

[0007] Therefore, the manual dispensing method used in the existing technology for fixing the fiber rods of UAV propeller protective rings has become a key bottleneck restricting the improvement of production efficiency and product quality stability. There is an urgent need to develop a new fixing technology and equipment that is efficient, reliable and can ensure consistency. Utility Model Content

[0008] To address the aforementioned problems, this utility model proposes a protective ring mold and forming device, which solves the issues of low processing efficiency and unstable yield in existing protective ring manufacturing processes.

[0009] The content of this utility model is achieved through the following technical solution:

[0010] Firstly, this utility model proposes a protective ring mold, comprising:

[0011] The upper mold assembly includes a first mounting plate and an upper template disposed on the first mounting plate, wherein the upper template is provided with an injection port;

[0012] The lower mold assembly includes a second mounting plate, a lower template, and multiple positioning components. The lower template and multiple positioning components are mounted on the second mounting plate, and the positioning components are located around the lower template. A mold groove is provided in the center of the lower template.

[0013] And a core component, which is detachably disposed in the mold groove, and the core component is provided with a plurality of first grooves for fixing fiber rods;

[0014] When the upper mold assembly and the lower mold assembly are closed, the upper mold plate and the positioning assembly enclose and form an injection cavity, and a protective ring shell is formed by injection molding on the periphery of the fiber rod through the injection port.

[0015] In some embodiments, the lower template has a mounting boss in the middle and a positioning groove is provided on the outside of the mounting boss, and the mold groove is located in the middle of the mounting boss; the positioning component has a positioning block, the positioning block extends into the positioning groove, and the positioning blocks of multiple positioning components surround the periphery of the mounting boss.

[0016] In some embodiments, the mounting boss is further provided with a plurality of first mounting slots, each first mounting slot having a first wire block inside, and the upper end of the first wire block having a second wire groove; the positioning block is provided with a plurality of support platforms; the first wire groove, the second wire groove, and the support platforms are arranged coaxially to accommodate the fiber rod.

[0017] In some embodiments, the end of the mold block is provided with a first mold plate, and the upper mold plate is provided with a second mold plate that cooperates with the first mold plate; the injection cavity is formed by the first mold plate and the second mold plate being molded together; the second mold plate is also provided with a third groove opposite to the support platform.

[0018] In some embodiments, the second mold plate is provided with a plurality of injection ports evenly distributed.

[0019] In some embodiments, the mold core is provided with a first clearance groove; the first mold plate is provided with a first column mold, the first column mold extending from the first mold plate toward the center of the upper mold plate; the second mold plate is provided with a second column mold that matches the first column mold; during mold closing, the first column mold and the second column mold are injection molded to form a support column connected to the outer shell of the protective ring.

[0020] In some embodiments, a pressure plate and a pressure ring are further provided in the middle of the upper template; the pressure plate and the pressure ring are both located inside the second mold plate, and the pressure ring is located on the outer periphery of the pressure plate; a plurality of pressing protrusions are provided at the lower end of the pressure plate; the second groove is also provided with a first slot; when the mold is closed, the pressing protrusions are pressed onto the fiber rod, and the pressure ring is located in the first slot and pressed onto the fiber rod.

[0021] In some embodiments, the mold core is provided with a guide hole in the middle, and a plurality of first limiting grooves are provided on the sidewall of the guide hole; the mold groove is provided with a guide post, and a first limiting block is provided on the periphery of the guide post; when the mold core moves into the mold groove, the guide hole is inserted along the guide post and the first limiting block is engaged with the first limiting groove.

[0022] In some embodiments, the mold core is further provided with a first positioning hole, and the mold groove is further provided with a first positioning pin; when the mold core moves into the mold groove, the first positioning pin is inserted into the first positioning hole.

[0023] Secondly, this utility model proposes a molding device, including an upper mold driving mechanism, an injection molding material mechanism, and the aforementioned protective ring mold.

[0024] The upper mold drive mechanism is connected to the upper mold assembly of the protective ring mold, and the injection molding material mechanism is connected to the injection port; when the mold is closed, the outer shell of the protective ring is formed by injection molding on the periphery of the fiber rod through the injection port.

[0025] The beneficial effects of this utility model's protective ring mold and forming device are:

[0026] This utility model discloses a protective ring mold comprising an upper mold assembly, a lower mold assembly, and a mold core. When the upper and lower mold assemblies are closed, the upper mold plate and the positioning assembly form an injection cavity, and the outer shell of the protective ring is formed by injection molding through the injection port on the periphery of the fiber rod. This utility model solves the problems of low efficiency and poor product consistency in manual operation. The replaceable design of the mold core adapts to the processing requirements of fiber rods of different specifications. The injection molding process makes the outer shell and the fiber rod form an integral structure, avoiding connection failure caused by insufficient glue curing. The cooperation between the positioning assembly and the upper and lower molds ensures the dimensional accuracy of the outer shell and eliminates the positioning misalignment defects common in manual operation. Attached Figure Description

[0027] Figure 1 This is a front view schematic diagram of the protective ring mold of this utility model;

[0028] Figure 2 This is an exploded view of the protective ring mold of this utility model;

[0029] Figure 3This is a three-dimensional schematic diagram of the mold core component of this utility model;

[0030] Figure 4 This is a three-dimensional schematic diagram of the lower mold assembly of this utility model;

[0031] Figure 5 for Figure 4 A detailed schematic diagram of reference numeral A in the attached figure;

[0032] Figure 6 This is a three-dimensional schematic diagram of the positioning component and the lower template in the lower mold assembly of this utility model;

[0033] Figure 7 This is a three-dimensional schematic diagram of the upper mold assembly of this utility model;

[0034] Figure 8 for Figure 7 A detailed schematic diagram with reference numeral B in the attached figure.

[0035] Marked in the image:

[0036] 20. Forming mechanism;

[0037] 21. Upper mold assembly; 211. First mounting plate; 212. Upper template; 2121. Second mold plate; 2122. Pressure plate; 2123. Pressing protrusion; 2124. Pressure ring; 2125. Second column mold;

[0038] 22. Lower mold assembly; 221. Second mounting plate; 222. Lower template; 2221. Mounting boss; 2223. First mounting groove; 2227. First line block; 2228. Second line groove; 2220. Shape slot; 2224. Guide post; 2225. First limiting block; 2226. First column mold;

[0039] 223. Molding assembly; 2231. Molding block; 2232. Support platform;

[0040] 40. Mold core; 41. First groove; 42. Guide hole; 43. First limiting groove; 44. First clearance groove; 45. First positioning hole;

[0041] 50. Fiber rods;

[0042] 60. Protective ring. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0045] Example 1:

[0046] Figure 1 This illustration shows a first embodiment of a protective ring mold of the present invention. The protective ring mold of the present invention includes an upper mold assembly 21, a lower mold assembly 22, and a mold core 40. The upper mold assembly 21 is provided with a first mounting plate 211 and an upper template 212 disposed on the first mounting plate 211. The upper template 212 is provided with an injection port. The lower mold assembly 22 is provided with a second mounting plate 221, a lower template 222, and multiple positioning components 223. The lower template 222 and the multiple positioning components 223 are disposed on the second mounting plate 221, and the positioning components 223 are disposed around the lower template 222. A mold groove is provided in the middle of the lower template 222, and the mold core 40 is detachably disposed in the mold groove. The mold core 40 is provided with multiple first grooves 41 for fixing the fiber rod 50. The upper mold drive mechanism is connected to the upper mold assembly 21 of the protective ring mold, and the injection molding material mechanism is connected to the injection port. When the mold is closed, the outer shell of the protective ring 60 is formed by injection molding around the fiber rod 50 through the injection port.

[0047] In this embodiment, the mold core 40 refers to a detachable mold component with a grooved structure, which can be made of aluminum alloy or tool steel, and its surface can be coated with an anti-stick coating to facilitate demolding. The mold assembly 223 refers to an auxiliary molding structure arranged around the mold groove, which can be implemented by a split slider mechanism, and is used to form the complex geometry of the protective ring 60 shell during the injection molding process.

[0048] Specifically, the core component 40 is pre-installed in the mold groove of the lower mold plate 222, and the fiber rod 50 is precisely embedded and fixed in the groove of the core component 40. When the upper mold drive mechanism pushes the upper mold plate 212 and the lower mold plate 222 to close, the positioning component 223 and the upper mold plate 212 together form a sealed injection cavity. The injection molding material mechanism injects molten plastic into the cavity through the injection port, and the plastic evenly wraps around the fiber rod 50 to form a shell. Since the core component 40 adopts a detachable design, after injection molding is completed, it can be removed as a whole with the molded shell by a robot, which facilitates the loading of the fiber rod 50 for the next cycle.

[0049] Compared with existing technologies, traditional manual dispensing processes require the individual positioning and bonding of fiber rods 50. This invention, however, achieves automatic positioning and fixing of the fiber rods 50 through the cooperation of the mold core 40 and the positioning component 223. Simultaneously, it utilizes injection molding to complete the shell molding and fiber rod 50 encapsulation in one step. Existing technologies limit production cycle time due to adhesive curing time; this invention achieves continuous production through cyclic injection molding, and the injection pressure ensures consistent bonding strength between the material and the fiber rods 50.

[0050] Through the above technical solutions, this utility model solves the problems of low efficiency and poor product consistency in manual operation. The replaceable design of the mold core 40 adapts to the processing requirements of fiber rods 50 of different specifications. The injection molding process makes the shell and fiber rod 50 form an integral structure, avoiding connection failure caused by insufficient glue curing. The fit between the positioning component 223 and the upper and lower molds ensures the dimensional accuracy of the shell and eliminates the positioning offset defects commonly found in manual operation.

[0051] Example 2:

[0052] Based on Embodiment 1, this utility model provides a second embodiment of the first protective ring mold, which further describes the upper mold assembly 21, the lower mold assembly 22 and the mold core 40.

[0053] In some embodiments, the present invention proposes that the lower template 222 has a mounting boss 2221 in the middle and a positioning groove 2220 is provided on the outside of the mounting boss 2221, and the mold groove is provided in the middle of the mounting boss 2221; the positioning component 223 has a positioning block 2231, the positioning block 2231 extends into the positioning groove 2220, and the positioning blocks 2231 of multiple positioning components 223 surround the periphery of the mounting boss 2221.

[0054] In this embodiment, the mounting boss 2221 refers to a protruding structure located in the middle of the lower template 222 for positioning the mold core 40. Specifically, it can be implemented using a stepped cylindrical structure, and its outer diameter can form a clearance fit with the inner hole of the mold core 40. The positioning groove 2220 refers to an annular groove formed around the outer side of the mounting boss 2221. Specifically, it can be formed by milling, and its depth can be 1 / 3 to 1 / 2 of the mold groove depth. The mold groove refers to a cavity located in the middle of the mounting boss 2221 for accommodating the mold core 40. Specifically, it can be a rectangular or circular groove structure matching the outer contour of the mold core 40. The positioning block 2231 refers to a forming module located at the end of the positioning assembly 223. Specifically, it can be a split metal block structure, and its inner surface can be machined into a curved surface matching the outer contour of the protective ring 60.

[0055] Specifically, after the mold core 40 is precisely embedded into the mold groove, the outer peripheral surface of the mounting boss 2221 forms a clearance fit with the inner wall of the mold core 40, ensuring that the mold core 40 does not shift during injection molding. The positioning block 2231 enters the peripheral area of ​​the mounting boss 2221 through the positioning groove 2220, and the encirclement of multiple positioning blocks 2231 forms the complete outer contour of the injection cavity. During mold closing, the positioning blocks 2231 and the upper mold assembly 21 are structurally matched to form a closed injection space. After the molten plastic enters the cavity from the injection port, it is evenly filled along the gap between the positioning blocks 2231 and the mold core 40, and finally forms a protective ring 60 shell of uniform thickness around the fiber rod 50.

[0056] Compared with existing technologies, traditional manual dispensing processes rely on operators manually controlling the glue distribution, making it difficult to ensure the concentricity of the fiber rod 50 and the outer ring of the protective ring 60. This invention, however, uses the mounting boss 2221 and the mold groove for positioning, combined with a precisely adjustable positioning block 2231 assembly, to ensure that the fiber rod 50 is always in a predetermined position within the mold. The injection-molded protective ring 60 shell and the fiber rod 50 form a mechanical interlocking structure, completely eliminating the positional deviation problem caused by manual operation.

[0057] Through the above technical solution, this utility model achieves precise positioning of the fiber rod 50 within the mold, ensuring that the plastic uniformly wraps around the fiber rod 50 during injection molding and avoiding stress concentration caused by uneven local thickness. The adjustable design of the positioning block 2231 can adapt to the production needs of protective rings 60 of different specifications, significantly reducing mold modification costs while improving product consistency.

[0058] In some embodiments, the present invention proposes that the mounting boss 2221 is further provided with a plurality of first mounting grooves 2223, the first mounting grooves 2223 having a first wire block 2227 inside, and the upper end of the first wire block 2227 being provided with a second wire groove 2228; the positioning block 2231 is provided with a plurality of support platforms 2232; the first wire groove 41, the second wire groove 2228 and the support platforms 2232 are arranged collinearly to accommodate the fiber rod 50.

[0059] In this embodiment, the first mounting groove 2223 refers to a groove structure provided on the mounting boss 2221, which can be implemented as a rectangular or U-shaped groove, used to fix the position of the first wire block 2227. The first wire block 2227 refers to an independent component embedded in the first mounting groove 2223, which can be made of metal or engineering plastic, and its top second wire groove 2228 is used to form a continuous channel with the first wire groove 41 of the mold core 40. The support platform 2232 refers to a platform structure protruding from the surface of the positioning block 2231, which can be implemented as a stepped or flat boss, used to assist in positioning the fiber rod 50 during injection molding. Collinear arrangement means that the central axis of the first wire groove 41, the second wire groove 2228 and the support platform 2232 are aligned, which can be achieved through precision machining or assembly adjustment to ensure that the fiber rod 50 remains in a straight line during injection molding.

[0060] Specifically, multiple first mounting slots 2223 are formed on the mounting boss 2221, and a first wire block 2227 with a second wire groove 2228 is embedded in each slot. Multiple support platforms 2232 are machined on the surface of the positioning block 2231, and the positions of the support platforms 2232 are aligned with the first wire groove 41 and the second wire groove 2228. When the mold core 40 is loaded with the fiber rod 50 and transferred to the mold cavity, one end of the fiber rod 50 is embedded in the first wire groove 41 of the mold core 40, and the other end extends to the surface of the support platform 2232 through the second wire groove 2228. During the mold closing and injection molding process, the fiber rod 50 is constrained by the first wire groove 41, the second wire groove 2228, and the support platform 2232, preventing displacement or deformation due to injection pressure.

[0061] Compared with existing technologies, traditional manual dispensing processes rely on operators manually adjusting the position of the fiber rod 50, which is prone to positioning deviations. This invention, however, achieves fully automatic positioning of the fiber rod 50 through the collinear cooperation of the first groove 41, the second groove 2228, and the support platform 2232, eliminating errors caused by manual intervention. Furthermore, the synergistic effect of the support platform 2232 and the grooves prevents the fiber rod 50 from bending due to uneven pressure during injection molding, whereas in existing technologies, the fiber rod 50 relies solely on the adhesive for fixation, lacking rigid support.

[0062] Through the above technical solution, this utility model solves the problem of inaccurate positioning of the fiber rod 50 during injection molding, ensuring that the bonding position of the fiber rod 50 and the outer shell of the protective ring 60 is consistent, and avoiding uneven injection molding or structural eccentricity caused by the offset of the fiber rod 50. At the same time, the multi-level positioning structure achieves rigid fixation of the fiber rod 50, reducing manual adjustment steps and improving the degree of automation in production.

[0063] In some embodiments, the present invention proposes that a first mold plate be provided at the end of the positioning block 2231, a second mold plate 2121 be provided on the upper mold plate 212 to cooperate with the first mold plate, the injection cavity be formed by the first mold plate and the second mold plate being molded together, the second mold plate 2121 be provided with a third groove opposite to the support platform 2232, and a plurality of injection ports be uniformly provided on the second mold plate 2121.

[0064] In this embodiment, the first mold plate refers to the disc-shaped structure at the end of the positioning block 2231, which can be made of metal or engineering plastic. Its edge contour forms a complementary shape with the second mold plate 2121, and is used to define the spatial boundary of the injection cavity together with the second mold plate 2121 when the mold is closed. The second mold plate 2121 refers to the mating structure fixed to the upper mold plate 212, which can be installed by bolt connection or inlay. The third groove on its surface corresponds to the position of the support platform 2232, and is used to provide continuous support for the fiber rod 50 during the injection molding process. The injection port refers to the feed channel evenly distributed around the second mold plate 2121, which can be a circular channel with a diameter of 1-3 mm. For example, 24 injection ports are arranged in a ring array at 15-degree intervals to achieve uniform injection of molten material into the cavity.

[0065] In addition, the injection port can also be set in the lower template 222, and the principle is the same as that of setting it in the upper template 212.

[0066] Specifically, when the upper mold plate 212 and the lower mold plate 222 are closed, the first mold plate and the second mold plate 2121 interlock to form a closed annular injection cavity. Molten material is simultaneously injected into the cavity from multiple injection ports of the second mold plate 2121. Due to the uniform distribution of the injection ports and the alignment of the third groove and the support platform 2232, the material flows uniformly around the fiber rod 50. During this process, the continuous support structure formed by the third groove and the support platform 2232 prevents the fiber rod 50 from shifting under pressure, while the uniformly distributed injection ports avoid local material accumulation or insufficient filling.

[0067] Compared with existing technologies, traditional manual dispensing processes rely on operators manually controlling the amount and position of adhesive, which easily leads to problems such as uneven adhesive layer thickness and deformation of the fiber rod under stress. This solution achieves automated and uniform control of material encapsulation through a closed injection cavity formed by a mold plate and simultaneous injection through multiple injection ports, eliminating adhesive volume fluctuations and positional deviations caused by manual operation.

[0068] Through the above technical solution, this utility model can ensure that the fiber rod 50 remains stably aligned during injection molding, avoiding bending or displacement of the fiber rod 50 due to uneven local pressure. The uniformly distributed injection ports enable the molten material to form a uniformly thick outer shell coating around the fiber rod 50, effectively solving problems such as uneven glue volume and fluctuations in adhesive strength that exist in manual dispensing, and significantly improving the structural consistency and yield of the protective ring 60 shell.

[0069] In some embodiments, this utility model provides a device for manufacturing a protective ring 60, wherein the mold core 40 is provided with a first clearance groove 44; the first mold plate is provided with a first column mold 2226, the first column mold 2226 extends from the first mold plate and is positioned at the center of the upper mold plate 212; the second mold plate 2121 is provided with a second column mold 2125 that matches the first column mold 2226; during mold closing, the first column mold 2226 and the second column mold 2125 are injection molded to form a support column that connects to the outer shell of the protective ring 60.

[0070] In this embodiment, the first clearance groove 44 refers to a groove structure formed on the surface of the mold core 40, which can be achieved by milling or stamping. It provides space for the first column mold 2226 and the second column mold 2125 during mold closing, preventing structural interference between the mold core 40 and the column molds. The first column mold 2226 refers to a protrusion structure fixed on the first mold plate, which can be made of metal or hard alloy material. Its extension direction is consistent with the mold closing direction, and it forms the cavity of the supporting column together with the second column mold 2125 during injection molding. The second column mold 2125 refers to a groove or protrusion structure provided on the second mold plate 2121, which can form a complementary shape to the first column mold 2226, such as a columnar groove or annular protrusion. It aligns with the first column mold 2226 during mold closing to form a closed injection channel. The support column refers to a columnar structure formed by curing injection molding material in the gap between the first column mold 2226 and the second column mold 2125. Specifically, it can be integrally molded with the outer shell of the protective ring 60 to enhance the connection strength between the outer shell and the fiber rod 50.

[0071] Specifically, after the mold core 40 is transferred to the mold cavity, the upper mold drive mechanism drives the upper mold plate 212 to move downwards, causing the first column mold 2226 to insert into the corresponding groove or gap of the second column mold 2125. At the same time, the first clearance groove 44 of the mold core 40 provides clearance space for the movement path of the first column mold 2226. After the mold is closed, the injection molding material enters the cavity formed by the first column mold 2226 and the second column mold 2125 through the injection port, and after curing, forms a support column that is integrated with the outer shell of the protective ring 60. This support column directly wraps around the fiber rod 50 or contacts the surface of the fiber rod 50, replacing the traditional manual dispensing bonding method, and realizing the mechanical fixation of the fiber rod 50 to the outer shell.

[0072] In some specific embodiments, the end of the first column mold 2226 can be designed as tapered or stepped, and the corresponding position of the second column mold 2125 is provided with a matching chamfer structure to ensure precise alignment of the two during mold closing. The diameter of the support column can be 1.2 to 1.5 times the diameter of the fiber rod 50 to balance structural strength and material cost. In addition, the axial length of the support column can be adjusted according to the size of the protective ring 60, for example, covering 50% to 80% of the total length of the fiber rod 50.

[0073] Compared with existing technologies, which rely on manual dispensing to fix the fiber rods 50, this invention addresses issues such as unstable glue volume control and long curing times. This solution, through the coordinated design of the mold plate and the column mold, directly forms a support column integrated with the outer shell during the injection molding stage. This not only eliminates the dispensing process but also improves connection reliability through mechanical structure. Furthermore, the size and position of the support column are guaranteed by mold precision, avoiding deviations or uneven glue distribution caused by manual operation.

[0074] Through the above technical solution, this utility model achieves automated fixing of the fiber rod 50 and the protective ring 60 shell, solving the problems of low efficiency and unstable yield of manual dispensing. The integrated molding design of the support column and the shell enhances the connection strength, avoids the risk of detachment caused by adhesive aging, and reduces waiting time in the production cycle, making it suitable for mass production scenarios.

[0075] In some embodiments, the present invention proposes a protective ring 60 manufacturing device, including a molding mechanism 20. The molding mechanism 20 includes a protective ring mold, and the protective ring mold includes an upper mold assembly 21. The upper mold assembly 21 is provided with a first mounting plate 211 and an upper template 212. A pressure plate 2122 and a pressure ring 2124 are provided in the middle of the upper template 212. The pressure ring 2124 is located on the outer periphery of the pressure plate 2122. A plurality of pressing protrusions 2123 are provided at the lower end of the pressure plate 2122. A second groove 2228 is provided with a first slot. When the mold is closed, the pressing protrusions 2123 are pressed onto the fiber rod 50, and the pressure ring 2124 is provided in the first slot and pressed onto the fiber rod 50.

[0076] In this embodiment, the pressure plate 2122 refers to a metal plate-like structure disposed in the middle of the upper template 212 for applying vertical pressure. It can be made of a high-hardness alloy material, and the pressing protrusion 2123 at its lower end can form partial contact with the surface of the fiber rod 50. The pressure ring 2124 refers to an annular pressing component surrounding the outer periphery of the pressure plate 2122. It can be made of a composite structure of elastic rubber material and a metal skeleton, enabling uniform pressure distribution during mold closing. The first slot refers to a recessed area opened on the surface of the second groove 2228, which can be formed by milling and is used to accommodate the embedded portion of the pressure ring 2124. The pressing protrusion 2123 refers to a protrusion structure distributed at the lower end of the pressure plate 2122, which can be hemispherical or pyramidal in shape and formed by precision stamping.

[0077] Specifically, during the mold closing process, the upper mold assembly 21 drives the pressure plate 2122 and the pressure ring 2124 to move downwards synchronously. The pressing protrusion 2123 first contacts the surface of the fiber rod 50, pressing and fixing the fiber rod 50 into the second groove 2228 through local point pressure; then the pressure ring 2124 is embedded in the first slot, and its annular contact surface applies uniform circumferential pressure to the fiber rod 50. This staged pressure application method not only ensures the precise positioning of the fiber rod 50 before injection molding, but also counteracts the lateral force generated by the flow of molten material during injection molding through annular pressure. The mating structure of the pressure ring 2124 and the first slot forms a physical limit, effectively preventing the fiber rod 50 from axially shifting under the high temperature and high pressure environment 2124.

[0078] Compared with existing technologies, traditional manual dispensing processes rely on operator visual positioning, making it difficult to control application pressure and positional accuracy. This invention achieves fully automated positioning and fixing of the fiber rod 50 through a mechanical pressing structure. The synergistic effect of the pressing protrusion 2123 and the pressure ring 2124 provides multi-directional constraint on the fiber rod 50 in three-dimensional space, completely eliminating positioning deviations caused by manual operation. Compared to traditional methods that rely solely on adhesive curing, mechanical pressing can reliably fix the fiber rod before injection molding, eliminating the need to wait for the adhesive to cure.

[0079] Through the above technical solution, this utility model achieves precise positioning and reliable fixation of the fiber rod 50 during the injection molding process. The dual pressing mechanism of the pressing protrusion 2123 and the pressure ring 2124 effectively prevents the fiber rod 50 from shifting under high temperature and high pressure injection molding conditions, ensuring that the bonding position between the protective ring 60 shell and the fiber rod 50 is precise and controllable. This structural design fundamentally solves the problems of uneven glue volume and positioning misalignment in manual dispensing processes, significantly improving product consistency and yield, while shortening the production cycle.

[0080] In some embodiments, the mold core 40 has a guide hole 42 in its center, and a plurality of first limiting grooves 43 are provided on the sidewall of the guide hole 42; the mold groove is provided with a guide post 2224, and a first limiting block 2225 is provided around the guide post 2224; when the mold core 40 moves into the mold groove, the guide hole 42 is inserted along the guide post 2224 and the first limiting block 2225 is engaged with the first limiting groove 43; the mold core 40 is also provided with a first positioning hole 45, and the mold groove is also provided with a first positioning pin; when the mold core 40 moves into the mold groove, the first positioning pin is inserted into the first positioning hole 45. In this embodiment, the present invention enables the mold core 40 to be installed into the mold groove by providing the guide hole 42 and the guide post 2224 in cooperation; and it is fixed by the first limiting block 2225 engaging with the first limiting groove 43. In addition, the present invention can further fix the mold core 40 in the mold groove by the cooperation of the first positioning pin and the first positioning hole 45.

[0081] Example 3:

[0082] Based on Embodiment 1 or Embodiment 2, this utility model provides a second embodiment of the molding device, which further describes the molding device based on the protective ring mold.

[0083] Specifically, the molding mechanism 20 includes an upper mold drive mechanism, an injection molding material mechanism, and a protective ring mold. The protective ring mold includes an upper mold assembly 21, a lower mold assembly 22, and a mold core 40. The upper mold assembly 21 has a first mounting plate 211 and an upper template 212 disposed on the first mounting plate 211, with an injection port. The lower mold assembly 22 has a second mounting plate 221, a lower template 222, and multiple positioning components 223, disposed on the second mounting plate 221, with the positioning components 223 located around the lower template 222. The lower template 222 has a mold groove in the middle, and the mold core 40 is detachably disposed within the mold groove, with multiple first grooves 41 for fixing the fiber rod 50. The upper mold drive mechanism is connected to the upper mold assembly 21 of the protective ring mold, and the injection molding material mechanism is connected to the injection port. During mold closing, the outer shell of the protective ring 60 is formed by injection molding through the injection port on the periphery of the fiber rod 50.

[0084] In this embodiment, the upper mold drive mechanism refers to the power device that drives the upper mold assembly 21 to move vertically. Specifically, it can be implemented using a hydraulic cylinder or a servo motor in conjunction with a screw structure to achieve precise opening and closing of the upper and lower molds. The injection material mechanism refers to the device that transports molten plastic to the mold cavity. Specifically, it can be implemented using a screw injection molding machine in conjunction with a heated barrel. By controlling the injection pressure and temperature, uniform material filling is ensured.

[0085] Specifically, the core component 40 is pre-installed in the mold groove of the lower mold plate 222, and the fiber rod 50 is precisely embedded and fixed in the groove of the core component 40. When the upper mold drive mechanism pushes the upper mold plate 212 and the lower mold plate 222 to close, the positioning component 223 and the upper mold plate 212 together form a sealed injection cavity. The injection molding material mechanism injects molten plastic into the cavity through the injection port, and the plastic evenly wraps around the fiber rod 50 to form a shell. Since the core component 40 adopts a detachable design, after injection molding is completed, it can be removed as a whole with the molded shell by a robot, which facilitates the loading of the fiber rod 50 for the next cycle.

[0086] Compared with existing technologies, traditional manual dispensing processes require the individual positioning and bonding of fiber rods 50. This invention, however, achieves automatic positioning and fixing of the fiber rods 50 through the cooperation of the mold core 40 and the positioning component 223. Simultaneously, it utilizes injection molding to complete the shell molding and fiber rod 50 encapsulation in one step. Existing technologies limit production cycle time due to adhesive curing time; this invention achieves continuous production through cyclic injection molding, and the injection pressure ensures consistent bonding strength between the material and the fiber rods 50.

[0087] Through the above technical solutions, this utility model solves the problems of low efficiency and poor product consistency in manual operation. The replaceable design of the mold core 40 adapts to the processing requirements of fiber rods 50 of different specifications. The injection molding process makes the shell and fiber rod 50 form an integral structure, avoiding connection failure caused by insufficient glue curing. The fit between the positioning component 223 and the upper and lower molds ensures the dimensional accuracy of the shell and eliminates the positioning offset defects commonly found in manual operation.

[0088] 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0089] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. 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. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0090] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0091] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0092] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A protective ring mold, characterized in that, include: The upper mold assembly (21) is provided with a first mounting plate (211) and an upper template (212) disposed on the first mounting plate (211), wherein the upper template (212) is provided with an injection port; The lower mold assembly (22) includes a second mounting plate (221), a lower template (222), and multiple positioning components (223). The lower template (222) and multiple positioning components (223) are mounted on the second mounting plate (221), and the positioning components (223) are located around the lower template (222). A mold groove is provided in the middle of the lower template (222). And a core component (40) is detachably disposed in the mold groove, and the core component (40) is provided with a plurality of first grooves (41) for fixing the fiber rod (50). When the upper mold assembly (21) and the lower mold assembly (22) are closed, the upper mold plate (212) and the positioning assembly (223) surround and form an injection cavity, and form a protective ring (60) shell by injection molding on the periphery of the fiber rod (50) through the injection port.

2. The protective ring mold according to claim 1, characterized in that, The lower template (222) is provided with a mounting boss (2221) in the middle, and a positioning groove (2220) is provided on the outside of the mounting boss (2221). The positioning groove is located in the middle of the mounting boss (2221). The positioning component (223) has a positioning block (2231), which extends into the positioning groove (2220). The positioning blocks (2231) of multiple positioning components (223) surround the mounting boss (2221).

3. The protective ring mold according to claim 2, characterized in that, The mounting boss (2221) is also provided with a plurality of first mounting slots (2223), the first mounting slots (2223) are provided with a first wire block (2227), and the upper end of the first wire block (2227) is provided with a second wire groove (2228); the positioning block (2231) is provided with a plurality of support platforms (2232); the first wire groove (41), the second wire groove (2228) and the support platform (2232) are arranged in a collinear manner to accommodate the fiber rod (50).

4. The protective ring mold according to claim 3, characterized in that, The end of the mold block (2231) is provided with a first mold plate, and the upper mold plate (212) is provided with a second mold plate (2121) that cooperates with the first mold plate; the injection cavity is formed by the first mold plate and the second mold plate (2121) being molded together; the second mold plate (2121) is also provided with a third groove opposite to the support platform (2232).

5. The protective ring mold according to claim 4, characterized in that, The second mold plate (2121) has multiple injection ports evenly arranged on it.

6. The protective ring mold according to claim 4, characterized in that, The mold core (40) is provided with a first clearance groove (44); the first mold plate is provided with a first column mold (2226), the first column mold (2226) extends from the first mold plate to the center of the upper mold plate (212); the second mold plate (2121) is provided with a second column mold (2125) that matches the first column mold (2226); when the mold is closed, the first column mold (2226) and the second column mold (2125) are injection molded to form a support column that connects to the outer shell of the protective ring (60).

7. The protective ring mold according to claim 4, characterized in that, The upper template (212) is also provided with a pressure plate (2122) and a pressure ring (2124) in the middle; the pressure plate (2122) and the pressure ring (2124) are both located inside the second mold plate (2121), and the pressure ring (2124) is located on the outer periphery of the pressure plate (2122). The lower end of the pressure plate (2122) is provided with a plurality of pressing protrusions (2123); the second groove (2228) is also provided with a first slot; when the mold is closed, the pressing protrusions (2123) are pressed and set on the fiber rod (50), and the pressure ring (2124) is set in the first slot and pressed on the fiber rod (50).

8. The protective ring mold according to claim 1, characterized in that, The mold core (40) is provided with a guide hole (42) in the middle, and a plurality of first limiting grooves (43) are provided on the side wall of the guide hole (42); the mold groove is provided with a guide post (2224), and a first limiting block (2225) is provided on the periphery of the guide post (2224); when the mold core (40) moves into the mold groove, the guide hole (42) is inserted along the guide post (2224) and the first limiting block (2225) is engaged on the first limiting groove (43).

9. The protective ring mold according to claim 8, characterized in that, The mold core (40) is also provided with a first positioning hole (45), and the mold groove is also provided with a first positioning pin; when the mold core (40) moves into the mold groove, the first positioning pin is inserted into the first positioning hole (45).

10. A molding apparatus, characterized in that, Includes an upper mold drive mechanism, an injection molding material mechanism, and a protective ring mold as described in any one of claims 1-9; The upper mold drive mechanism is connected to the upper mold assembly (21) of the protective ring mold, and the injection molding material mechanism is connected to the injection port; when the mold is closed, the outer shell of the protective ring (60) is formed by injection molding on the periphery of the fiber rod (50) through the injection port.

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