A two-color toothbrush forming mold

By setting a buffer component in the two-color toothbrush molding mold, the problem of direct collision between the upper and lower mold plates is solved, which improves the mold life and molding accuracy, and reduces glue overflow and color cross-contamination.

CN224360576UActive Publication Date: 2026-06-16CIXI JINGCHENG MOLD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CIXI JINGCHENG MOLD
Filing Date
2025-05-30
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

During the mold closing process of the two-color toothbrush molding mold, the direct rigid collision between the upper and lower mold plates leads to a shortened mold life and reduced molding accuracy, resulting in problems such as glue overflow, flash, or cross-contamination of colors.

Method used

A buffer assembly, including a protrusion and a movable damping part, is set at the connection between the upper and lower templates. The buffering effect is achieved by the compression between the protrusion and the movable damping part to avoid direct collision.

🎯Benefits of technology

It effectively avoids damage to the template surface, improves mold life and molding accuracy, and reduces the occurrence of glue overflow and color cross-contamination.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224360576U_ABST
    Figure CN224360576U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of forming mould of full rubber-coated double-color toothbrush, comprising: upper die plate, lower die plate, positioning assembly and buffer assembly;The lower die plate is used for the fixed forming of toothbrush, the positioning assembly is set in the opposite side of upper die plate and lower die plate, the positioning assembly is used for the pressing of upper die plate and lower die plate and is folded positioning;The buffer assembly is used for the pressing of upper die plate and lower die plate and is folded buffer, the buffer assembly includes the protruding portion setting in the bottom of upper die plate, the top of lower die plate is provided with the movable damping portion for receiving protruding portion;The utility model is provided with buffer assembly at the junction of upper die plate and lower die plate, the protruding portion setting in the bottom of upper die plate and the movable damping portion of lower die plate top in buffer assembly are aligned and extruded, to play the role of buffer in the process of upper die plate and lower die plate moving and folding, avoid the direct unbuffered collision of upper die plate and lower die plate, damage template surface.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding template technology, and in particular to a molding die for a fully encapsulated two-color toothbrush. Background Technology

[0002] During the mold closing process of the two-color toothbrush molding mold, the collision between the upper and lower mold plates directly affects the mold life and molding accuracy. When the mold is closed, the two mold plates collide directly and rigidly, resulting in instantaneous stress concentration, which causes the coating on the mold plate surface to peel off, the guide post to deform or the positioning pin to loosen. After long-term use, the mold surface will be damaged by collision, resulting in increased gaps, which will affect the accuracy of the two-color coating of the bristles and the brush handle, and easily cause problems such as glue overflow, flash or color cross-contamination.

[0003] Therefore, in order to solve the problem of no buffer when the upper and lower templates are closed, a molding die for a fully encapsulated two-color toothbrush is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a molding die for a fully coated dual-color toothbrush to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a molding die for a fully coated dual-color toothbrush, comprising:

[0006] Upload template;

[0007] The lower template is used to fix and shape the toothbrush.

[0008] A positioning component is provided on the opposite side of the upper template and the lower template, and the positioning component is used for positioning the upper template and the lower template when pressed down and closed.

[0009] A buffer assembly is provided for cushioning the downward closing of the upper and lower templates. The buffer assembly includes a protrusion at the bottom of the upper template and a movable damping part at the top of the lower template for receiving the protrusion.

[0010] Preferably, the protrusion includes:

[0011] A plurality of pressure blocks are arranged around the bottom edge of the upper template;

[0012] The top of the fixing bolt is threadedly connected to the bottom of the lower pressure block and the bottom of the upper template.

[0013] Preferably, the movable damping part includes:

[0014] Sleeves, a plurality of sleeves are arranged around the top side of the lower template and located at the bottom of the lower pressure block;

[0015] A pressure plate, the bottom of which is inserted and connected to the top of the sleeve;

[0016] A spring-loaded component is disposed at the bottom of the pressure plate and located in the inner cavity of the sleeve. The spring-loaded component is used for the spring-loaded reset of the pressure plate.

[0017] A limiting component is provided at the intersection of the pressure plate and the sleeve, and the limiting component is used to limit the movement of the pressure plate.

[0018] Preferably, the springback element includes:

[0019] A compression spring is disposed in the inner cavity of the sleeve and located at the bottom of the pressure plate, and the bottom end of the compression spring is fixedly connected to the bottom inner wall of the sleeve.

[0020] A positioning protrusion is provided at the bottom of the pressure plate, and the bottom of the positioning protrusion is interlocked with the middle of the compression spring.

[0021] Preferably, the limiting member includes:

[0022] A movable groove is formed on the top inner wall of the sleeve;

[0023] A damping ring, wherein the damping ring is sleeved on the outside of the pressure plate and located in the inner cavity of the movable groove;

[0024] A limiting ring is sleeved on the outside of the pressure plate and located at the top of the damping ring. The outer side of the limiting ring is fixedly connected to the inner wall of the movable groove.

[0025] Preferably, the positioning component includes positioning bolts, and a plurality of positioning bolts are disposed at the top of the four corners of the lower template, with the top of the positioning bolts interlocking with the bottom of the upper template.

[0026] Preferably, a connecting plate is provided on the top of the upper template, and the connecting plate is used to connect the injection molding machine moving plate.

[0027] Preferably, the bottom of the lower template is provided with a base plate, which is used to connect the injection molding machine fixing plate.

[0028] The technical effects and advantages of this utility model are as follows:

[0029] This invention provides a buffer component at the connection between the upper and lower templates. The protrusion at the bottom of the upper template and the movable damping part at the top of the lower template are aligned and pressed together, thereby providing a buffering effect during the movement and closing of the upper and lower templates and avoiding direct, unbuffered collisions between the upper and lower templates that could damage the template surface. Attached Figure Description

[0030] Figure 1 This is a front view of the entire utility model.

[0031] Figure 2 This is a side view of the entire utility model.

[0032] Figure 3 This is a cross-sectional view of the buffer component of this utility model.

[0033] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0034] In the diagram: 1. Upper template; 101. Connecting plate; 2. Lower template; 201. Base plate; 202. Positioning bolt; 3. Buffer assembly; 301. Lower pressure block; 302. Sleeve; 303. Pressure plate; 3031. Positioning protrusion; 304. Compression spring; 305. Damping ring; 306. Limiting ring; 307. Movable groove; 308. Fixing bolt. Detailed Implementation

[0035] 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.

[0036] This utility model provides, for example Figure 1-4 As shown:

[0037] Example 1: A molding die for a fully coated dual-color toothbrush, comprising: an upper template 1, a lower template 2, a positioning component, and a buffer component 3;

[0038] Specifically, the overall structure formed by the upper template 1 and the lower template 2 refers to the working principle of the TW-300 toothbrush mold. The lower template 2 is used for fixing and shaping the toothbrush. The positioning component is set on the opposite side of the upper template 1 and the lower template 2. The positioning component is used for the downward pressing and closing positioning of the upper template 1 and the lower template 2. The buffer component 3 is used for the downward pressing and closing buffer of the upper template 1 and the lower template 2. The buffer component 3 includes a protrusion set at the bottom of the upper template 1 and a movable damping part set at the top of the lower template 2 for receiving the protrusion.

[0039] It should be noted that the top of the upper template 1 is provided with a connecting plate 101, which is used to connect the injection molding machine moving plate, and the bottom of the lower template 2 is provided with a bottom plate 201, which is used to connect the injection molding machine fixing plate.

[0040] Specifically, the connecting plate 101 is welded and fixed to the upper template 1, and the bottom plate 201 is welded and fixed to the lower template 2.

[0041] It should be noted that the protrusion includes the lower pressure block 301 and the fixing bolt 308;

[0042] Specifically, multiple pressure blocks 301 are arranged around the bottom side of the upper template 1, and the top of the fixing bolts 308 are sequentially threaded through and connected to the bottom of the pressure blocks 301 and the bottom of the upper template 1.

[0043] It should be noted that threaded holes are provided at the bottom of the lower pressure block 301 and the bottom of the upper template 1, and the fixing bolt 308 is inserted through the threaded holes to fix the lower pressure block 301 and the upper template 1.

[0044] Specifically, the moving damping part includes: sleeve 302, pressure plate 303, springback component and limiting component;

[0045] It should be noted that multiple sleeves 302 are arranged around the top side of the lower template 2 and located at the bottom of the lower pressure block 301. The bottom of the pressure plate 303 is inserted and connected to the top of the sleeve 302. The spring-loaded component is arranged at the bottom of the pressure plate 303 and located in the inner cavity of the sleeve 302. The limiting component is arranged at the intersection of the pressure plate 303 and the sleeve 302.

[0046] Specifically, the springback component is used for the springback reset of the pressure plate 303, the limiting component is used for limiting the movement of the pressure plate 303, the sleeve 302 and the lower template 2 are fixed by welding, and the limiting component includes: the movable groove 307, the damping ring 305 and the limiting ring 306.

[0047] It should be noted that the movable groove 307 is opened on the top inner wall of the sleeve 302, the damping ring 305 is sleeved on the outside of the pressure plate 303 and located in the inner cavity of the movable groove 307, the limiting ring 306 is sleeved on the outside of the pressure plate 303 and located on top of the damping ring 305, and the outside of the limiting ring 306 is fixedly connected to the inner wall of the movable groove 307.

[0048] Specifically, the damping ring 305 is bonded and fixed to the outer side of the pressure plate 303 with high-temperature resistant adhesive, the limiting ring 306 is bonded and fixed to the movable groove 307 with adhesive, and the pressure plate 303 can be inserted and moved through the middle of the pressure plate 303.

[0049] Specifically, the spring-loaded components include: a compression spring 304 and a positioning protrusion 3031;

[0050] It should be noted that the compression spring 304 is disposed in the inner cavity of the sleeve 302 and located at the bottom of the pressure plate 303. The bottom end of the compression spring 304 is fixedly connected to the bottom inner wall of the sleeve 302. The positioning protrusion 3031 is disposed at the bottom of the pressure plate 303. The bottom of the positioning protrusion 3031 is interlocked with the middle part of the compression spring 304.

[0051] It should be noted that the compression spring 304 is glued to the inner wall of the sleeve 302, the positioning protrusion 3031 is welded to the pressure plate 303, and the intersection of the positioning protrusion 3031 and the compression spring 304 is glued to each other.

[0052] Example 2: A positioning component applied to the molding die of the fully encapsulated dual-color toothbrush in Example 1;

[0053] Specifically, the positioning component includes positioning bolts 202, and multiple positioning bolts 202 are disposed at the top of the four corners of the lower template 2, with the top of the positioning bolts 202 interlocking with the bottom of the upper template 1;

[0054] It should be noted that the positioning bolt 202 is fixed to the lower template 2 by welding, and the bottom of the upper template 1 is provided with a columnar groove.

[0055] In actual use, a buffer component 3 is provided at the connection between the upper template 1 and the lower template 2. The protrusion at the bottom of the upper template 1 and the movable damping part at the top of the lower template 2 in the buffer component 3 are aligned and pressed together, thereby playing a buffering role during the movement and closing of the upper template 1 and the lower template 2, avoiding direct and unbuffered collision between the upper template 1 and the lower template 2, which would damage the template surface.

[0056] 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 molding die for a fully rubber-coated dual-color toothbrush, characterized in that, include: Template (1); The lower template (2) is used to fix and shape the toothbrush; A positioning component is provided on the opposite side of the upper template (1) and the lower template (2), and the positioning component is used for the downward pressing and closing positioning of the upper template (1) and the lower template (2); The buffer assembly (3) is used for the downward closing buffer of the upper template (1) and the lower template (2). The buffer assembly (3) includes a protrusion at the bottom of the upper template (1) and a movable damping part at the top of the lower template (2) for receiving the protrusion.

2. The molding die for a fully coated dual-color toothbrush according to claim 1, characterized in that, The protrusion includes: A plurality of pressure blocks (301) are arranged around the bottom side of the upper template (1); The top of the fixing bolt (308) is threadedly connected to the bottom of the lower pressure block (301) and the bottom of the upper template (1).

3. The molding die for a fully coated dual-color toothbrush according to claim 2, characterized in that, The movable damping part includes: Sleeves (302), a plurality of sleeves (302) are arranged around the top side of the lower template (2) and located at the bottom of the lower pressure block (301); A pressure plate (303) is inserted and connected at the bottom to the top of a sleeve (302); A spring-loaded component is disposed at the bottom of the pressure plate (303) and located in the inner cavity of the sleeve (302), and the spring-loaded component is used for the spring-loaded reset of the pressure plate (303); A limiting member is provided at the intersection of the pressure plate (303) and the sleeve (302), and the limiting member is used to limit the movement of the pressure plate (303).

4. The molding die for a fully coated dual-color toothbrush according to claim 3, characterized in that, The spring-loaded component includes: Compression spring (304) is disposed in the inner cavity of sleeve (302) and located at the bottom of pressure plate (303). The bottom end of compression spring (304) is fixedly connected to the bottom inner wall of sleeve (302). A positioning protrusion (3031) is provided at the bottom of the pressure plate (303), and the bottom of the positioning protrusion (3031) is interlocked with the middle of the compression spring (304).

5. The molding die for a fully coated dual-color toothbrush according to claim 3, characterized in that, The limiting component includes: The movable groove (307) is formed on the top inner wall of the sleeve (302); Damping ring (305), the damping ring (305) is sleeved on the outside of the pressure plate (303) and located in the inner cavity of the movable groove (307); A limiting ring (306) is sleeved on the outside of the pressure plate (303) and located on top of the damping ring (305). The outside of the limiting ring (306) is fixedly connected to the inner wall of the movable groove (307).

6. The molding die for a fully coated dual-color toothbrush according to claim 5, characterized in that, The positioning component includes positioning bolts (202), and multiple positioning bolts (202) are disposed at the top of the four corners of the lower template (2), with the top of the positioning bolts (202) interlaced with the bottom of the upper template (1).

7. The molding die for a fully coated dual-color toothbrush according to claim 1, characterized in that, A connecting plate (101) is provided on the top of the upper template (1), and the connecting plate (101) is used to connect the injection molding machine moving plate.

8. The molding die for a fully coated dual-color toothbrush according to claim 1, characterized in that, The bottom of the lower template (2) is provided with a base plate (201), which is used to connect the injection molding machine fixing plate.