CN208096391U - A kind of toothbrush and its manufacturing mold - Google Patents

Abstract

The utility model relates to a toothbrush and manufacturing mould thereof, the toothbrush be by the brush holder, brush crown and brush hair are constituteed, brush holder head and brush hair constitute thermoplastic material brush hair and the first integrated shaping of brush holder through injection molding process, wherein the brush hair top be forked type two sharp structure. The utility model discloses a two sharp hair toothbrushes with whole injection moulding formula, hair point density increases one time, has increased the area of contact on brush hair and tooth surface, and the clean dynamics improves at double, has also alleviateed the pressure to gum and enamel simultaneously, and the cleaning process is more comfortable. The utility model discloses can adopt the thick sharp thin brush hair structure of root, both guarantee the brush hair dynamics and reduced the brush hair hardness, more be favorable to protecting the tooth and make the difficult lodging of brush hair.

Description

Translated fromChinese

一种牙刷及其制造模具A kind of toothbrush and its manufacturing mold

技术领域technical field

本实用新型涉及一种牙刷及其制造模具，特别涉及一种一体成型式牙刷及其制造模具。The utility model relates to a toothbrush and a manufacturing mold thereof, in particular to an integrally formed toothbrush and a manufacturing mold thereof.

背景技术Background technique

目前市场上的传统牙刷头部一般采用尼龙丝植入，尼龙丝植入式牙刷由于制造工艺所决定的原因，在尼龙丝与牙刷头接触的地方存在不同程度的间隙和空洞，极易滋生细菌，存在无数卫生死角不易清洗，且尼龙刷毛在植入过程中需用铝丝进行捆扎，而大家都知道铝是比较活跃的金属，容易与酸碱发生反应，产生铝盐，铝会对人体细胞的正常代谢产生不可逆转的危害。因此需要经常更换牙刷，以满足口腔卫生的需求。同时，尼龙刷丝在生产过程中会产生大量的尼龙微尘，且不会降解，对环境也产生不利影响。The head of the traditional toothbrush currently on the market is generally implanted with nylon wire. Due to the manufacturing process of the nylon wire implanted toothbrush, there are gaps and cavities of varying degrees in the contact between the nylon wire and the toothbrush head, which is very easy to breed bacteria. , there are countless hygienic corners that are not easy to clean, and the nylon bristles need to be bound with aluminum wires during the implantation process, and everyone knows that aluminum is a relatively active metal, which is easy to react with acid and alkali to produce aluminum salts, which will affect human cells. Normal metabolism produces irreversible harm. Therefore need to change toothbrush frequently, to meet the demand of oral hygiene. At the same time, nylon brush filaments will produce a large amount of nylon dust during the production process, and will not degrade, which will also have an adverse impact on the environment.

为了提高尼龙刷丝的清洁度和舒适度，日本直接采用了加大植毛密度的方法进行粗暴解决，这无异于再次增加了无数的卫生死角。在另一些产品上，是将原本一根刷丝的尖端进行了压碎处理，但是这样又使头部过于柔软，舒适度上升，清洁力却受到影响。In order to improve the cleanliness and comfort of nylon brush filaments, Japan directly adopted the method of increasing the density of flocking for a rough solution, which is tantamount to adding countless hygienic dead ends. In other products, the tip of the original brush filament is crushed, but this makes the head too soft, improves the comfort, but affects the cleaning power.

中国专利ZL201310338071.8公开了“一种整体式抗菌牙刷及其成型制造工艺”，虽然该发明通过复合胶工艺使刷头表面无缝隙无孔洞，但是其刷毛种植密度与对牙齿的清洁力度仍是难以平衡的矛盾，刷毛密度小，易于保持牙刷卫生，但降低了对牙齿的清洁力度和舒适度。Chinese patent ZL201310338071.8 discloses "an integral antibacterial toothbrush and its molding manufacturing process". Although the invention uses a composite glue process to make the surface of the brush head seamless and without holes, its bristle planting density and tooth cleaning power are still low. It is difficult to balance the contradiction, the bristle density is small, it is easy to keep the toothbrush hygienic, but it reduces the cleaning power and comfort of the teeth.

发明内容Contents of the invention

为克服已有技术中存在的问题，本实用新型的目的之一是提供一种提高清洁力度和舒适度的牙刷，使得牙刷毛尖端更加柔软，清洁力度成倍提升，同时减少对牙龈和牙釉质的伤害。In order to overcome the problems existing in the prior art, one of the purposes of this utility model is to provide a toothbrush with improved cleaning power and comfort, so that the tip of the toothbrush is softer, the cleaning power is doubled, and at the same time, it reduces the damage to the gums and enamel. s damage.

本实用新型的另一目的是提供一种利用注塑工艺将热塑性材质刷毛及刷柄头一体成型技术来制造所述牙刷的模具，该模具便于制作和便于牙刷生产。Another object of the present invention is to provide a mold for manufacturing the toothbrush by using injection molding technology to integrally form thermoplastic material bristles and handle head, the mold is convenient for making and toothbrush production.

一种牙刷，是由刷柄，刷柄头和刷毛组成，所述的刷柄头和刷毛是通过注塑工艺将热塑性材质刷毛及刷柄头一体成型构成，其中所述的刷毛顶尖为分叉式双尖结构。A toothbrush is composed of a brush handle, a brush handle head and bristles. The brush handle head and bristles are formed by integrally forming thermoplastic material bristles and the brush handle head through an injection molding process, wherein the bristle tips are bifurcated Bicuspid structure.

一种牙刷制造模具，是由上模板、下模板以及模芯镶嵌扣合构成。其中，所述的上模板包括刷柄头镶嵌腔和进料口，所述的刷柄头内嵌在刷柄头镶嵌腔内，刷柄头安装刷毛的位置处为网筛式结构，以可通过热塑性材料为宜；下模板包括模芯镶嵌腔；所述的模芯是由一组半刷毛模片通过固定栓和固定孔紧密贴合构成，紧密贴合后的模芯镶嵌在上述模芯镶嵌腔内。A toothbrush manufacturing mold is composed of an upper mold plate, a lower mold plate, and a mold core embedded and fastened together. Wherein, the upper template includes a brush handle head inlay cavity and a feed port, the brush handle head is embedded in the brush handle head inlay cavity, and the position where the brush handle head is installed with bristles is a mesh structure, so that It is advisable to use a thermoplastic material; the lower template includes a mold core embedding cavity; the mold core is composed of a group of half bristle mold pieces that are tightly fitted through the fixing bolt and the fixing hole, and the tightly fitted mold core is embedded in the above mold core Inlaid cavity.

所述的模芯是由一组半刷毛模片通过固定栓和固定孔紧密贴合构成，每片半刷毛模片上开设有刷毛半槽，所述刷毛半槽的刷毛顶尖部有双凹槽，相邻半刷毛模片配合组成完整的刷毛注塑孔。The mold core is composed of a group of half-bristle mold pieces tightly fitted through fixing bolts and fixing holes. Each half-bristle mold piece is provided with a bristle half-groove, and the bristle tip of the bristle half-groove has double grooves. Adjacent halves of bristle modules cooperate to form complete bristle injection molding holes.

本实用新型采用一种带有整体注塑式的双尖毛牙刷，毛尖密度加大一倍，增加了刷毛与牙齿表面的接触面积，清洁力度成倍提高，同时也减轻了对于牙龈及牙釉质的压强，清洁过程更加舒适。本实用新型可以采用根粗尖细的刷毛结构，既保证了刷毛力度又减少了刷毛硬度，更有利于保护牙齿并且使得刷毛不易倒伏。The utility model adopts a double-pointed hair toothbrush with integral injection molding, the density of the hair tip is doubled, the contact area between the bristles and the tooth surface is increased, the cleaning power is doubled, and the damage to the gums and enamel is also reduced. The pressure makes the cleaning process more comfortable. The utility model can adopt a bristle structure with a thick root and a thin tip, which not only ensures the strength of the bristles but also reduces the hardness of the bristles, which is more conducive to protecting the teeth and makes the bristles less prone to lodging.

附图说明Description of drawings

图1是本实用新型一体成型式牙刷的实物示意图；Fig. 1 is the physical schematic diagram of the utility model integrated toothbrush;

图2是本实用新型刷毛顶尖为分叉式双尖结构的剖面示意图；Fig. 2 is a schematic cross-sectional view of a bifurcated double-tip structure at the top of the bristle of the present invention;

图3是本实用新型模具组装前的结构示意图；Fig. 3 is the structural representation before the utility model mold assembly;

图4是本实用新型模芯的结构示意图；Fig. 4 is the structural representation of the utility model mold core;

图5是本实用新型一种模芯实施例的结构示意图；Fig. 5 is a structural schematic diagram of a core embodiment of the utility model;

图6是采用图5模芯生产的牙刷实物示意图。Fig. 6 is a schematic diagram of the actual toothbrush produced by the mold core in Fig. 5 .

具体实施方式Detailed ways

在以下的叙述中，为了使读者更好地理解本申请而提出了许多技术细节。但是，本领域的普通技术人员可以理解，即使没有这些技术细节和基于以下各实施方式的种种变化和修改，也是本申请各权利要求所要求保护的技术方案。In the following description, many technical details are proposed in order to enable readers to better understand the application. However, those skilled in the art can understand that even without these technical details and various changes and modifications based on the following implementation modes, it is still the technical solution claimed by the claims of the present application.

为使本实用新型的目的、技术方案和优点更加清楚，下面将结合附图对本实用新型的实施方式作进一步地详细描述。In order to make the purpose, technical solutions and advantages of the utility model clearer, the implementation of the utility model will be further described in detail below in conjunction with the accompanying drawings.

如图1所示，一种牙刷，是由刷柄头200和刷毛20组成，所述的刷柄头和刷毛是通过注塑工艺将热塑性材质刷毛及刷柄头一体成型构成，其中所述的刷毛顶尖21为分叉式双尖结构。所述刷毛顶尖分叉式双尖结构的刷毛排列方式可以是直排式、交叉排列方式、或者是旋转式刷毛排列。所述的热塑性材料可以是TPU(热塑性聚氨酯弹性体橡胶),苯乙烯聚合物，聚烯烃，聚酯，纤维素衍生物，聚酰胺，聚甲基丙烯酸甲酯，聚碳酸酯，聚甲醛，聚氟乙烯，聚氨酯之一，在上述热塑性材料中添加竹炭或纳米银可以更加抑制细菌的滋生。As shown in Figure 1, a toothbrush is composed of a handle head 200 and bristles 20, and the handle head and bristles are integrally formed by thermoplastic material bristles and the handle head through an injection molding process, wherein the bristles The top 21 is a bifurcated double-point structure. The arrangement of the bristles of the bifurcated double-tip structure of the bristles can be a straight arrangement, a cross arrangement, or a rotating arrangement of the bristles. The thermoplastic material can be TPU (thermoplastic polyurethane elastomer rubber), styrene polymer, polyolefin, polyester, cellulose derivative, polyamide, polymethyl methacrylate, polycarbonate, polyoxymethylene, poly Vinyl fluoride, one of polyurethanes, adding bamboo charcoal or nano-silver to the above-mentioned thermoplastic materials can further inhibit the growth of bacteria.

更清晰地，如图2，是本实用新型刷毛顶尖为分叉式双尖结构的剖面示意图，所述的每根刷毛顶尖分叉后形成的毛尖直径可以为0.005至0.02毫米。More clearly, as shown in Fig. 2 , it is a schematic cross-sectional view of the bifurcated double-tip structure of the tip of the bristle of the present invention, and the diameter of the tip of each bristle can be 0.005 to 0.02 mm after the tip of the bristle is bifurcated.

如图3所示，一种牙刷制造模具，是由上模板100、下模板300以及模芯400镶嵌构成。其中，所述的上模板包括刷柄头镶嵌腔101和进料口102，所述的刷柄头200内嵌在刷柄头镶嵌腔内，刷柄头安装刷毛的位置处201为网筛式结构，以可注塑通过热塑性材料为宜；下模板包括模芯镶嵌腔301；所述的模芯是由一组半刷毛模片401通过固定栓402和固定孔403紧密贴合构成，紧密贴合后的模芯镶嵌在上述模芯镶嵌腔内。As shown in FIG. 3 , a toothbrush manufacturing mold is composed of an upper template 100 , a lower template 300 and a mold core 400 inlaid. Wherein, the upper template includes a brush handle head inlay cavity 101 and a feed port 102, the brush handle head 200 is embedded in the brush handle head inlay cavity, and the position 201 where the brush handle head is installed with bristles is a screen type The structure is suitable for injection molding through thermoplastic materials; the lower template includes a mold core inlay cavity 301; the mold core is composed of a group of half bristle mold pieces 401 that are tightly fitted through the fixing bolt 402 and the fixing hole 403, and the tight fit The final mold core is embedded in the above-mentioned mold core embedding cavity.

如图4所示，所述的模芯中，每片半刷毛模片401上开设有刷毛半槽411，所述刷毛半槽411的刷毛顶尖部有双凹槽，该双凹槽的深度可以是0.01至0.03毫米，相邻半刷毛模片紧密贴合组成完整的刷毛注塑孔。所述半刷毛模片可以用精密磨床开设有刷毛半槽，成型后的刷毛注塑孔直径可以是刷毛根部为0.8mm，中部为0.58mm，刷毛顶尖部为0.3mm，刷毛注塑孔互相间距可以为0.4-0.6mm。所述刷毛半槽，形状可以为V型槽或U型槽。为了便于脱模，降低次品率，所述半刷毛模片的刷毛半槽内可设有金刚石涂膜层或进行镀钛处理。根据刷毛排列方式所述的刷毛半槽可采用直排式或交叉排列方式。As shown in Figure 4, in the described mold core, on every half bristle mold sheet 401, be provided with bristle half groove 411, the bristle top portion of described bristle half groove 411 has double groove, the depth of this double groove can be It is 0.01 to 0.03 mm, and the adjacent half-bristle molds are closely attached to form a complete bristle injection hole. The half bristle mold piece can be provided with a bristle half groove with a precision grinder, and the diameter of the bristle injection hole after molding can be 0.8mm at the bristle root, 0.58mm at the middle, and 0.3mm at the top of the bristle, and the mutual spacing of the bristle injection holes can be 0.4-0.6mm. The shape of the bristle half-groove can be a V-shaped groove or a U-shaped groove. In order to facilitate demoulding and reduce the rate of defective products, the bristle half-groove of the half-bristle module can be provided with a diamond coating layer or be treated with titanium plating. According to the arrangement of the bristles, the half grooves of the bristles can be in a straight row or in a cross arrangement.

图5为本实用新型的又一实例，如图所示，取上述模芯刷毛顶尖部作为本实例的刷毛顶尖成型模块400，模芯还可以由布满注塑孔的刷毛根部镶嵌模块600和刷毛中部镶嵌模块500与所述刷毛顶尖成型模块400孔孔匹配后紧密贴合构成；所述的刷毛根部镶嵌模块、刷毛中部镶嵌模块以及刷毛顶尖成型模块中注塑孔的直径可以从刷毛根部到刷毛顶尖递减。上述每个模块上注塑孔数量与所对应的刷柄头尺寸进行匹配。Fig. 5 is another example of the present utility model, as shown in the figure, take the above-mentioned mold core bristle top part as the bristle top forming module 400 of this example, the mold core can also be covered with the bristle root mosaic module 600 and the bristle of the injection molding hole The middle mosaic module 500 and the bristle top forming module 400 are closely fitted to each other; the diameter of the injection hole in the bristle root mosaic module, the bristle middle mosaic module and the bristle top molding module can be from the bristle root to the bristle top decrease. The number of injection holes on each of the above modules matches the size of the corresponding brush handle head.

如图6所示，采用图5模芯生产的牙刷的实物示意图，其中注塑成型后的刷毛可以是三段式，也可以是二段式。As shown in Figure 6, the physical schematic diagram of the toothbrush produced by the mold core in Figure 5, wherein the bristles after injection molding can be three-stage or two-stage.

虽然通过参照本实用新型的某些优选实施方式，已经对本实用新型进行了图示和描述，但本领域的普通技术人员应该明白，可以在形式上和细节上对其作各种改变，而不偏离本实用新型的精神和范围。Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, those skilled in the art will understand that various changes in form and details may be made therein without Deviate from the spirit and scope of the present utility model.

Claims (4)

1. a kind of toothbrush manufactures mold, which is characterized in that the toothbrush manufacture mold is inlayed by cope plate, lower template and mold coreBuckle, which closes, to be constituted, wherein the cope plate includes that handle head inlays chamber and feed inlet, and the handle head is embedded in handle headInlay it is intracavitary, handle head install bristle position at be net screen type structure, can be advisable by thermoplastic material；The lower diePlate includes that mold core inlays chamber；The mold core is to be fitted closely to constitute by fixing bolt and fixation hole by one and half bristle matrixs,Mold core after fitting closely, which is embedded in the mold core, to be inlayed and offers bristle half on every intracavitary, described half bristle matrixSlot, the bristle top tip part of half slot of bristle have dual-cavity, and adjacent half bristle matrix, which is matched, is combined into complete bristle injecting hole.

2. toothbrush according to claim 1 manufactures mold, which is characterized in that the bristle top tip part of half slot of bristle has depthThe dual-cavity that degree is 0.01 to 0.03 millimeter.

3. toothbrush according to claim 1 manufactures mold, which is characterized in that take the mold core bristle top tip part as brushThe top forming module of hair, the mold core are inlayed by the bristle root for being covered with injecting hole and inlay module and institute in the middle part of module and bristleComposition is fitted closely after stating the matching of bristle top forming module hole hole.

4. toothbrush according to claim 3 manufactures mold, which is characterized in that inlay module, bristle in the bristle rootThe diameter that injecting hole in module and the top forming module of bristle is inlayed at middle part top from bristle root to bristle successively decreases.