A mold for forming a cosmetic device

Abstract

This utility model relates to the field of plastic mold design technology, and discloses a mold for molding a beauty device, including a fixed mold assembly and a moving mold assembly connected in sequence. The fixed mold assembly is provided with an upper heat insulation plate, a panel, and a stripping plate, and is connected to plate A through the panel. The moving mold assembly is provided with plate B, and a square iron, a bottom plate, and a lower heat insulation plate are connected in sequence below plate B. A sliding assembly is provided between plate A and plate B, and a symmetrical scraper is provided on the inner side of plate A. The sliding assembly includes a sliding scraper set on plate B, and the sliding scraper has an inclined guide post inside, which is used to move the sliding as a driving force. In this utility model, through the scraper on plate A, the sliding scraper constructs a tight mold closing on three sides of the sliding assembly within plates A and B, and with the help of the limiting block and the sliding seat, multi-faceted constraints are achieved, solving the problems of displacement of the sliding assembly inside the mold during mold closing and product deformation after mold opening.

Description

Technical Field

[0001] This utility model relates to the field of plastic mold design technology, and in particular to a mold for molding a beauty device. Background Technology

[0002] Currently, with the widespread application of beauty devices in personal care and medical assistance, their shells and functional components are mostly molded using high-precision injection molding. Therefore, the quality of the supporting injection mold structure directly determines the finished appearance, dimensional accuracy, and performance of the beauty device. To meet the high requirements of beauty device products for shell strength, smoothness, and structural complexity, mold design must consider molding efficiency, demolding smoothness, and the mold's own lifespan.

[0003] In existing technologies, beauty device molds mostly employ an injection cavity structure formed by the cooperation of a moving mold and a fixed mold. The lateral undercuts of the product typically rely on guide pillars to detach from the undercuts, and the product is ejected by an ejector mechanism after molding. Limiting devices are also installed to avoid cavity damage or movement interference. However, traditional structures may still experience problems such as inaccurate slide positioning, severe component wear, and product tearing during long-term operation.

[0004] However, in practical applications, traditional beauty device molds still have the following problems in the demolding stage: due to the lack of an effective multi-faceted positioning constraint structure, the sliding components are prone to displacement during the mold closing process, resulting in unstable edge dimensions of the product. In severe cases, product deformation or tearing may even occur, affecting the consistency of the finished product and the service life of the mold. Therefore, a mold for forming beauty devices is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a mold for forming a beauty device, which aims to improve the existing technology where the lack of an effective multi-faceted positioning constraint structure makes the sliding components prone to displacement during the mold closing process, resulting in unstable edge dimensions of the product, and in severe cases, even product deformation or tearing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mold for forming a beauty instrument, comprising a fixed mold assembly and a moving mold assembly connected in sequence. The fixed mold assembly is provided with an upper heat insulation plate, a panel and a stripping plate, and is connected to plate A through the panel. The moving mold assembly is provided with plate B, and a square iron, a bottom plate and a lower heat insulation plate are connected in sequence below plate B. A sliding assembly is provided between plate A and plate B, and a symmetrical shovel is provided on the inner side of plate A.

[0007] Furthermore, the sliding assembly includes a sliding shovel mounted on the B plate, and the sliding shovel has an inclined guide post inside, which is used to move the sliding assembly as a driving force.

[0008] Furthermore, a limiting block is provided between the two shovels, and the limiting block is in contact with the travel seat.

[0009] Furthermore, a row insert is provided on one side of the row seat 1 and the row seat 2, and a back wear-resistant plate is provided on both sides of the row seat 1 and the row seat 2.

[0010] Furthermore, a rear mold core is provided at the center of the B plate, and a bottom wear-resistant plate is provided on the upper side of the B plate. The bottom wear-resistant plate and the sliding fastener form a closed structure.

[0011] Furthermore, the base plate is provided with an ejector structure, which includes an ejector plate disposed between the base plate and the B plate for demolding the product.

[0012] Furthermore, a positioning ring is provided between the upper heat insulation plate and the panel, which is used to facilitate positioning and fixing of the mold during mold installation.

[0013] Furthermore, a third row seat is provided between the two sides of the first row seat and the second row seat, and a wear-resistant block is provided on the side of the first row seat and the second row seat away from the third row seat. The third row seat is provided in the B plate.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, by setting a stripper plate and a sliding shovel inside the fixed mold assembly, a symmetrical mating structure is formed on both sides of the A plate. Combined with the auxiliary positioning functions of the limiting block and the sliding seat, the sliding of the forming mold can be constrained in multiple aspects, ensuring the mold remains stable during the mold closing process and effectively preventing mold displacement and product dimensional deformation. At the same time, by setting wear-resistant blocks on both sides of the sliding insert, a guiding friction interface is formed between the sliding and the rear mold core during the sliding movement. This not only enhances the stability of the sliding movement but also extends the overall service life of the mold, improving the stability of the mold and the yield rate of finished products. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a mold for forming a beauty device according to the present invention.

[0017] Figure 2 This is a schematic diagram of the inclined guide column part of the mold for forming a beauty instrument proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the two-part structure of the mold for forming a beauty instrument according to the present invention.

[0019] Figure 4 This is a schematic diagram of the three-part structure of the mold for forming a beauty instrument proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of a portion of the slide seat structure of a mold for forming a beauty instrument according to the present invention.

[0021] Figure 6 This is a schematic diagram showing the disassembled form of a mold for molding a beauty device according to the present invention.

[0022] Legend:

[0023] 1. Upper heat insulation plate; 2. Front panel; 3. Stripper plate; 4. Plate A; 5. Plate B; 6. Square iron; 7. Base plate; 8. Lower heat insulation plate; 9. Ejector plate; 10. Slide fastener; 11. Bottom wear-resistant plate; 12. Slide seat two; 13. Slide shovel; 14. Inclined guide post; 15. Back wear-resistant plate; 16. Slide insert; 17. Limiting block; 18. Rear mold core; 19. Wear-resistant block; 20. Shovel; 21. Slide seat one; 22. Slide seat three; 23. Positioning ring. Detailed Implementation

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

[0025] Reference Figures 1-6This utility model provides an embodiment of a mold for forming a beauty instrument, comprising a fixed mold assembly and a moving mold assembly connected in sequence. The fixed mold assembly includes an upper heat insulation plate 1, a panel 2, and a stripper plate 3. The upper heat insulation plate 1 is used to isolate the influence of heat sources and prevent the panel 2 from deforming due to high temperature. The panel 2 provides pressure support for the front mold structure. The stripper plate 3 is used to pull out the sprue head at the nozzle. The panel 2 is fastened to form an integral structure with plate A 4 to enhance the positioning rigidity of the front mold. The moving mold assembly includes plate B 5, with a square iron 6, a bottom plate 7, and a lower heat insulation plate 8 connected in sequence below plate B 5. Plate B 5 is the main bearing plate of the rear mold. The square iron 6 is used to reinforce the support structure. The bottom plate 7 provides the bottom clamping and ejection support base. The lower heat insulation plate 8 is used to reduce the conduction of molding heat to the bottom of the mold frame, preventing temperature from affecting processing accuracy and equipment stability. A sliding assembly is provided between plate A 4 and plate B 5 to realize the lateral core pulling function of the product, meeting the requirements of molding complex shapes. Symmetrical scrapers 20 are installed on the inner side of plate A 4. During mold opening, they provide synchronous lateral parting and product demolding assistance. The sliding component includes a sliding scraper 13 installed on plate B 5. The sliding scraper 13 has an inclined guide post 14 inside. The inclined guide post 14 guides and transmits displacement during mold opening and closing. Its lower end extends into the sliding seat 21 and abuts against the upper side of the square iron 6. The force transmission structure of the inclined guide surface improves the smoothness of the sliding movement. A limiting block 17 is provided between the two scrapers 20. The limiting block 17 cooperates with the sliding seat 2 12 to limit the maximum stroke of the sliding and prevent overshoot. Sliding inserts 16 are provided on one side of sliding seat 21 and sliding seat 2 12 to form a lateral cavity with the molding area to ensure the shape accuracy of the product. Wear-resistant back plates 15 are provided on both sides of sliding seat 21 and sliding seat 2 12. The high-hardness material enhances the wear resistance of the sliding under frequent movement. A rear mold core 18 is located at the center of plate B 5, serving as a key component of the molding area. A bottom wear-resistant plate 11 is located on the upper side of plate B 5, forming a closed structure with the slide buckle 10, enabling slide locking and protection in the closed mold state. An ejection structure is provided on the bottom plate 7, including an ejector plate 9 positioned between the bottom plate 7 and plate B 5, used to eject the product after mold opening. A positioning ring 23 is located between the upper heat insulation plate 1 and the panel 2 for positioning and mounting the mold on the machine. A slide seat 3 22 is located between the sides of slide seat 1 21 and slide seat 2 12, used to detach the product's glue position from the ground side. A wear-resistant block 19 is located on the side of slide seat 1 21 and slide seat 2 12 away from slide seat 3 22, forming a sliding contact surface with the rear mold components, effectively mitigating wear during operation.

[0026] Specifically, through the synergistic effect between the sliding components, guide parts and wear-resistant structure, not only is the lateral core-pulling capability and demolding stability of the mold improved, but the overall structural rigidity, heat resistance and repeated service life are also improved, which can meet the processing requirements of high-precision injection molding of complex structures of beauty instruments.

[0027] Working principle: When this mold is needed, the mold is closed first. The sliding block 13, guided by the inclined guide post 14, closes the mold laterally, ensuring precise closure of multiple sliding components and achieving multi-faceted sealing control, eliminating the burr problem common in traditional molds. After mold closing, molten plastic is injected from the nozzle to the sprue. The plastic flow path passes through the positioning ring 3, A plate 4, rear mold core 18, and other components to form the product's structural cavity. The limiting block 17 and the sliding block seat form a three-dimensional constraint structure, improving the cavity closure and positioning accuracy. After the product cools, the mold is opened. Under the action of the spring, the gap between panel 2 and plate A4 opens by 12 mm. This distance is limited by the four small guide pillars installed on the panel, pulling out the sprue head at the nozzle. When the gap between plate A4 and plate B5 continues to open to 325 mm, plate A is pulled by four pull plates on both sides of the mold by 195 mm. This distance is controlled and limited by four small pull rods installed on the stripper plate. Through this large space between panel 4 and plate A5, the robot arm removes the sprue material. At the same time, the slide moves backward along the inclined guide pillar 14, releasing the product undercut. The slide insert 16 and the wear-resistant block 19 work together to form a stable friction interface, improving guiding performance and mold life. The ejector plate 9 structure set at the bottom of plate B5 pushes the product out by 49 mm under the action of ejection force. In addition, through the combination of heat insulation plate and positioning ring 23 and other structures, the mold temperature can be isolated from the machine, and the components can be accurately aligned, thereby improving the overall operating efficiency of the mold and the product molding quality.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mold for forming a beauty device, characterized in that: It includes a fixed mold assembly and a moving mold assembly connected in sequence. The fixed mold assembly is provided with an upper heat insulation plate (1), a panel (2) and a stripper plate (3), which is connected to plate A (4) through the panel (2). The moving mold assembly is provided with plate B (5), and a square iron (6), a bottom plate (7) and a lower heat insulation plate (8) are connected in sequence below plate B (5). A sliding assembly is provided between plate A (4) and plate B (5). A symmetrical shovel (20) is provided on the inner side of plate A (4).

2. The mold for forming a beauty device according to claim 1, characterized in that: The sliding assembly includes a sliding shovel (13) mounted on plate B (5), and the sliding shovel (13) has an inclined guide post (14) inside, which extends into the sliding seat (21) and abuts against the upper side of the square iron (6).

3. The mold for forming a beauty device according to claim 2, characterized in that: A limiting block (17) is provided between the two shovels (20), and the limiting block (17) is in contact with the second travel seat (12).

4. The mold for forming a beauty device according to claim 2, characterized in that: A row insert (16) is provided on one side of the row seat 1 (21) and the row seat 2 (12), and a back wear plate (15) is provided on both sides of the row seat 1 (21) and the row seat 2 (12).

5. The mold for forming a beauty device according to claim 1, characterized in that: The B plate (5) is provided with a rear mold core (18) at its center and a bottom wear-resistant plate (11) is provided on the upper side of the B plate (5). The bottom wear-resistant plate (11) and the sliding buckle (10) form a closed structure.

6. The mold for forming a beauty device according to claim 1, characterized in that: The base plate (7) is provided with an ejection structure, which includes an ejection plate (9) disposed between the base plate (7) and the B plate (5) for demolding the product.

7. The mold for forming a beauty device according to claim 1, characterized in that: A positioning ring (23) is provided between the upper heat insulation plate (1) and the panel (2), and the positioning ring (23) is used to achieve component alignment when the mold is closed.

8. The mold for forming a beauty device according to claim 2, characterized in that: A third row seat (22) is provided between the two sides of the first row seat (21) and the second row seat (12). A wear-resistant block (19) is provided on the side of the first row seat (21) and the second row seat (12) away from the third row seat (22). The third row seat (22) is provided in the B plate (5).

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