CN105438581B - 坯身加厚式塑料瓶坯 - Google Patents
坯身加厚式塑料瓶坯 Download PDFInfo
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- CN105438581B CN105438581B CN201510967132.6A CN201510967132A CN105438581B CN 105438581 B CN105438581 B CN 105438581B CN 201510967132 A CN201510967132 A CN 201510967132A CN 105438581 B CN105438581 B CN 105438581B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
- B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/40—Details of walls
- B65D1/42—Reinforcing or strengthening parts or members
- B65D1/46—Local reinforcements, e.g. adjacent closures
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Abstract
坯身加厚式塑料瓶坯,包括瓶口和坯身,瓶口与坯身之间制有连接段,在瓶口外壁制有插接凸环和挡环,坯身底部制有坯底,其特征在于:所述的坯身外壁制有2—8条加厚层,所述加厚层横向截面的中部厚,两侧逐渐变薄,呈弧形向外凸出,加厚层纵向截面的上部厚,下部逐渐变薄。在对瓶坯进行吹塑时,将加厚层与模具内腔的转角处相对应,这样在对饮水桶吹塑成型后,虽然转角处需要拉伸的更长(瓶坯中心到桶壁的拉伸比为1:3.8,瓶坯中心到转角的拉伸比为1:5.5),但加厚层对转角提供足够的壁厚,使拉伸成型的饮水桶桶壁厚薄均匀,从而提高饮水桶转角的厚度和结构强度,提高成品率,保证饮水桶的使用寿命。
Description
技术领域
本发明涉及塑料瓶坯,特别是涉及吹饮水桶用的坯身加厚式塑料瓶坯。
背景技术
随着人们生活水平的不断提高,在公司、医院、餐厅等公共场所,以及在家庭中都广泛应用饮水机,已有饮水机上的饮水桶一般制成圆筒形,其外形单一,因此越来越多的企业为了吸引消费者的眼球,把更多的精力投入到饮水桶的外形设计中,有制成方形或者六边形或者八边形等等,但将饮水桶制成方形或者六边形或者八边形,由于多边形桶的转角到饮水桶中心的距离较远,而桶壁到饮水桶中心的距离较近,因此桶角所拉伸的程度更大,若塑料瓶坯仍然采用圆筒形坯身,则会导致吹塑成型的饮水桶转角处的桶壁较薄,使整个饮水桶壁厚薄不均匀,从而影响多边形饮水桶转角处的结构强度和使用寿命,而且转角处桶壁薄容易使瓶子吹破,成品率低。
发明内容
本发明的目的是为了克服已有技术存在的缺点,提供一种提高吹塑成型后的多边形饮水桶转角处结构强度,保证饮水桶使用寿命的坯身加厚式塑料瓶坯。
本发明坯身加厚式塑料瓶坯的技术方案是:包括瓶口和坯身,瓶口与坯身之间制有连接段,在瓶口外壁制有插接凸环和挡环,坯身底部制有坯底,其特征在于:所述的坯身外壁制有2—8条加厚层,所述加厚层横向截面的中部厚,两侧逐渐变薄,呈弧形向外凸出,加厚层纵向截面的上部厚,下部逐渐变薄。
本发明公开了一种坯身加厚式塑料瓶坯,主要特征是在瓶坯的坯身外壁制有加厚层,其横向截面的中部厚为0.2—0.5mm,两侧逐渐变薄与坯身圆弧过渡连接,其纵向截面的上部厚为0.2—0.5mm,下部逐渐变薄与坯底圆弧过渡连接,在对瓶坯进行吹塑时,将加厚层与模具内腔的转角处相对应,这样在对饮水桶吹塑成型后,虽然转角处需要拉伸的更长(瓶坯中心到桶壁的拉伸比为1:3.8,瓶坯中心到转角的拉伸比为1:5.5),但加厚层对转角提供足够的壁厚,使拉伸成型的饮水桶桶壁厚薄均匀,从而提高饮水桶转角的厚度和结构强度,提高成品率,保证饮水桶的使用寿命。
本发明坯身加厚式塑料瓶坯,所述的挡环上制有2—8条定位直边,定位直边与加厚层相对应。定位直边与吹塑模具配合,使塑料瓶坯放在模具中时,坯身上的加厚层能与模具内腔的转角相对应,从而保证吹塑成型的饮水桶转角的厚度和结构强度。所述的坯身外壁制有2条加厚层。所述的坯身外壁制有3条加厚层。所述的坯身外壁制有4条加厚层。若要将饮水桶截面制成椭圆形,可在坯身外壁制有2条加厚层,要将饮水桶截面制成三角形,可在坯身外壁制有3条加厚层,要将饮水桶截面制成方形,可在坯身外壁制有4条加厚层,以此类推。
附图说明
图1是本发明坯身加厚式塑料瓶坯的主视示意图;
图2是图1的A—A方向截面示意图;
图3是图1的B—B方向截面示意图。
具体实施方式
本发明涉及一种坯身加厚式塑料瓶坯,如图1—图2所示,包括瓶口1和坯身2,瓶口与坯身之间制有连接段3,在瓶口外壁制有插接凸环4和挡环5,坯身底部制有坯底6,其特征在于:所述的坯身2外壁制有2—8条加厚层7,所述加厚层7横向截面的中部8厚,两侧9逐渐变薄,呈弧形向外凸出,加厚层纵向截面的上部10厚,下部11逐渐变薄。主要特征是在瓶坯的坯身2外壁制有加厚层7,其横向截面的中部8厚为0.2—0.5mm,两侧9逐渐变薄与坯身2圆弧过渡连接,其纵向截面的上部10厚为0.2—0.5mm,下部11逐渐变薄与坯底6圆弧过渡连接,在对瓶坯进行吹塑时,将加厚层7与模具内腔的转角处相对应,这样在对饮水桶吹塑成型后,虽然转角处需要拉伸的更长(瓶坯中心到桶壁的拉伸比为1:3.8,瓶坯中心到转角的拉伸比为1:5.5),但加厚层7对转角提供足够的壁厚,使拉伸成型的饮水桶桶壁厚薄均匀,从而提高饮水桶转角的厚度和结构强度,提高成品率,保证饮水桶的使用寿命。所述的挡环5上制有2—8条定位直边12,定位直边与加厚层7相对应。定位直边12与吹塑模具配合,使塑料瓶坯放在模具中时,坯身2上的加厚层7能与模具内腔的转角相对应,从而保证吹塑成型的饮水桶转角的厚度和结构强度。所述的坯身2外壁制有2条加厚层7。所述的坯身2外壁制有3条加厚层7。所述的坯身2外壁制有4条加厚层7。若要将饮水桶截面制成椭圆形,可在坯身2外壁制有2条加厚层7,要将饮水桶截面制成三角形,可在坯身外壁制有3条加厚层,要将饮水桶截面制成方形,可在坯身外壁制有4条加厚层,以此类推。
Claims (4)
1.坯身加厚式塑料瓶坯,包括瓶口(1)和坯身(2),瓶口与坯身之间制有连接段(3),在瓶口外壁制有插接凸环(4)和挡环(5),坯身底部制有坯底(6),其特征在于:所述的坯身(2)外壁制有2—8条加厚层(7),所述加厚层(7)横向截面的中部(8)厚,两侧(9)逐渐变薄,呈弧形向外凸出,加厚层纵向截面的上部(10)厚,下部(11)逐渐变薄,其横向截面的中部(8)厚为0.2—0.5mm,两侧(9)逐渐变薄与坯身(2)圆弧过渡连接,其纵向截面的上部(10)厚为0.2—0.5mm,下部(11)逐渐变薄与坯底(6)圆弧过渡连接,在对瓶坯进行吹塑时,将加厚层(7)与模具内腔的转角处相对应,瓶坯中心到桶壁的拉伸比为1:3.8,瓶坯中心到转角的拉伸比为1:5.5,加厚层(7)对转角提供足够的壁厚,使拉伸成型的饮水桶桶壁厚薄均匀,提高饮水桶转角的厚度和结构强度,所述的挡环(5)上制有2—8条定位直边(12),定位直边与加厚层(7)相对应,定位直边(12)与吹塑模具配合,使塑料瓶坯放在模具中时,坯身(2)上的加厚层(7)能与模具内腔的转角相对应,从而保证吹塑成型的饮水桶转角的厚度和结构强度。
2.如权利要求1所述的坯身加厚式塑料瓶坯,其特征在于:所述的坯身(2)外壁制有2条加厚层(7)。
3.如权利要求1所述的坯身加厚式塑料瓶坯,其特征在于:所述的坯身(2)外壁制有3条加厚层(7)。
4.如权利要求1所述的坯身加厚式塑料瓶坯,其特征在于:所述的坯身(2)外壁制有4条加厚层(7)。
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US4201535A (en) * | 1976-11-03 | 1980-05-06 | Owens-Illinois, Inc. | Apparatus for forming tubular plastic articles |
JP2000128140A (ja) * | 1998-10-20 | 2000-05-09 | Aoki Technical Laboratory Inc | ポリエステル樹脂による耐熱性包装用容器 |
EP2271469A4 (en) * | 2008-03-26 | 2011-05-11 | Husky Injection Molding | DRAWING AND STACKING MOLDS TO PRODUCE THE DRAFT |
US8728601B2 (en) * | 2009-11-06 | 2014-05-20 | Nestec S.A. | Preform and container comprising reinforcing elements |
EP2539130B1 (en) * | 2010-02-26 | 2015-04-22 | Husky Injection Molding Systems Ltd. | A preform suitable for blow-molding into a final shaped container |
CN204249143U (zh) * | 2014-03-21 | 2015-04-08 | 赫斯基注塑***有限公司 | 容器预成型件 |
CN205274039U (zh) * | 2015-12-22 | 2016-06-01 | 林明茳 | 坯身加厚式塑料瓶坯 |
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