The utility model discloses a double-layer coextrusion zipper mold, which includes a mold body, which is characterized in that: the middle of the mold body is provided with two extrusion channels arranged horizontally, the feeding ports of the upper and lower extrusion channels are respectively arranged on the left and right sides of the mold body, the front of the mold body is provided with two extrusion channels arranged horizontally, the upper and lower extrusion outlets correspond to the upper and lower extrusion channels respectively; in the mold body The front side of the body is also fixed with a zipper extrusion cavity plate. The left and right sides of the zipper extrusion cavity plate are provided with a zipper male female button extrusion cavity. The zipper head extrusion cavity and the zipper sheet extrusion cavity are arranged freely up and down. The inner inlet ends of the zipper head extrusion cavity and the zipper sheet extrusion cavity are respectively connected with the up and down extrusion outlets, and the zipper head extrusion cavity and the zipper sheet extrusion cavity are respectively connected The outer outlet ends of the die cavity are close to each other. The utility model is specially used for extrusion production of double-layer coextrusion zipper, which ensures that the zipper has both hardness and firm combination with the zipper bag.
【技术实现步骤摘要】
双层共挤拉链模具
本技术涉及一种模具,具体涉及一种双层共挤拉链模具。
技术介绍
目前市场上,拉链袋的拉链(拉链也称夹链,一般由拉链头和拉链片构成,拉链头用于雌雄扣合,拉链片用于与袋体烫合)如果要与拉链袋的袋体牢固结合(一般为烫接方式),那么拉链的材料要软一点,但不能保证拉链的雌雄扣能够牢固扣合,易出现脱扣;如果拉链的材料硬一点,虽然拉链的雌雄扣在扣合后不容易脱扣,但难以保证与拉链袋的袋体牢固结合。
技术实现思路
针对现有技术的不足,本技术的目的旨在于提供一种专用于双层共挤拉链的挤出生产,保证拉链既有硬度又能与拉链袋牢固结合的双层共挤拉链模具。本技术是采取如下技术方案来完成的:双层共挤拉链模具,包括模具本体,其特征在于:模具本体的中间设有横向布设的上下两条挤出通道,上下两条挤出通道的进料口分设于模具本体的左右两侧,模具本体的正面设有横向布设的上下两个挤出口分别对应上下两条挤出通道,上挤出口连通上挤出通道,下挤出口连通下挤出通道,上下两个挤出口相互靠近;在模具本体的正面还固定安装拉链挤出型腔板,拉链挤出型腔板一左一右设置拉链雌雄扣挤出型腔,拉链雌雄扣挤出型腔各自由上下布设的拉链头挤出型腔和拉链片挤出型腔构成,拉链头挤出型腔和拉链片挤出型腔的内侧进口端分别相接上下挤出口,拉链头挤出型腔和拉链片挤出型腔的外侧出口端相互靠近。上述技术方案的双层共挤拉链模具,可以同时挤出生产拉链雌雄扣,拉链雌雄扣的拉链头和拉链片能够具有不同材质,拉链头的材质较硬,保证拉链的雌雄扣在扣合后不易出现脱扣, ...
【技术保护点】
1.双层共挤拉链模具,包括模具本体,其特征在于:模具本体的中间设有横向布设的上下两条挤出通道,上下两条挤出通道的进料口分设于模具本体的左右两侧,模具本体的正面设有横向布设的上下两个挤出口分别对应上下两条挤出通道,上挤出口连通上挤出通道,下挤出口连通下挤出通道,上下两个挤出口相互靠近;在模具本体的正面还固定安装拉链挤出型腔板,拉链挤出型腔板一左一右设置拉链雌雄扣挤出型腔,拉链雌雄扣挤出型腔各自由上下布设的拉链头挤出型腔和拉链片挤出型腔构成,拉链头挤出型腔和拉链片挤出型腔的内侧进口端分别相接上下挤出口,拉链头挤出型腔和拉链片挤出型腔的外侧出口端相互靠近。/n
【技术特征摘要】
1.双层共挤拉链模具,包括模具本体,其特征在于:模具本体的中间设有横向布设的上下两条挤出通道,上下两条挤出通道的进料口分设于模具本体的左右两侧,模具本体的正面设有横向布设的上下两个挤出口分别对应上下两条挤出通道,上挤出口连通上挤出通道,下挤出口连通下挤出通道,上下两个挤出口相互...
【专利技术属性】
技术研发人员:郭明,姚朋,陶万洲,包崇坚,
申请(专利权)人:浙江新新包装机械有限公司,
类型:新型
国别省市:浙江;33
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