WO2019090950A1 - 一种台车泡棉条及其生产工艺 - Google Patents

一种台车泡棉条及其生产工艺 Download PDF

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Publication number
WO2019090950A1
WO2019090950A1 PCT/CN2017/120006 CN2017120006W WO2019090950A1 WO 2019090950 A1 WO2019090950 A1 WO 2019090950A1 CN 2017120006 W CN2017120006 W CN 2017120006W WO 2019090950 A1 WO2019090950 A1 WO 2019090950A1
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WO
WIPO (PCT)
Prior art keywords
template
cavity
molding cavity
trolley
foam strip
Prior art date
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PCT/CN2017/120006
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English (en)
French (fr)
Inventor
田憬
Original Assignee
广州敏惠汽车零部件有限公司
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Publication of WO2019090950A1 publication Critical patent/WO2019090950A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof

Definitions

  • the invention relates to an auxiliary device in the field of automobile parts production research, in particular to a trolley foam strip, and a production process of a trolley foam strip.
  • the trolley In the production of auto parts, most of the parts need to go through multiple processes. At this time, the trolley is generally required to turn the parts around between the processes.
  • the door frame For the turnover of the door frame, the door frame is generally positioned and pressed in the trolley by the foam strip on the trolley.
  • the foam strip is molded by injection molding to form a solid structure with high density, which increases the weight of the trolley, thereby increasing the manufacturing cost and material cost; the foam strip is made of eucalyptus rubber, has high hardness, and has high cost for mold opening. Injection molding is difficult; after the foam strip is damaged, it can only be scrapped and cannot be reused.
  • a trolley foam strip comprising a skeleton and two barrels, the skeleton comprising a bottom wall and two first side walls arranged in parallel, the bottom wall being horizontal
  • the upper and lower sides of the two first side walls are fixedly connected to the upper end surface of one of the first side walls.
  • the middle part of each barrel is provided with a hollow cavity extending through the two ends of the barrel, and two barrels are provided.
  • a first gap is disposed between each of them, and an outer side of each of the first side walls is disposed with a positioning mechanism.
  • the lower end of the barrel is provided with a mounting groove
  • the first side wall extends into the mounting groove
  • the upper end surface of the first side wall and the inner bottom wall of the mounting groove Pressing, the two sides of the mounting groove are respectively pressed and fixed with the two outer sides of the first side wall.
  • the positioning mechanism includes a first positioning block that divides an outer end surface of the first side wall into an upper area and a lower area.
  • the barrel is a soft material member
  • the skeleton is a hard material member
  • a production process of a trolley foam strip comprising the following steps,
  • the internal dimension of the third molding cavity gradually decreases toward the fifth molding cavity along the first molding cavity, and the internal dimension of the fourth molding cavity is along the second molding cavity.
  • the direction of the six forming cavities gradually becomes smaller.
  • the seventh molding cavity comprises two tubular molding cavities and a U forming cavity having a U-shaped longitudinal section
  • the U forming type comprises two linearly shaped cavities arranged in parallel
  • each An outer side of the linear molding cavity is disposed with a positioning block cavity
  • each of the linear molding cavities communicates with a tubular molding cavity through a second communication cavity
  • each of the forming cores corresponds to one of the tubular molding cavities.
  • the hard material is PP
  • the soft material is TPE
  • the invention has the beneficial effects that the product of the invention reduces the weight of the product of the invention by providing a hollow cavity running through the two ends of the barrel in the middle of the barrel, and compacts the door frame through two barrels, and is installed through the skeleton. On the trolley.
  • the product has the advantages of simple structure, light weight and low cost, and after being damaged, it can be recycled and re-extracted to improve the utilization rate.
  • the first template, the second template, the third template, the fourth template and the fifth template are closed to form a skeleton forming passage and a tubular forming passage, and the two passages are extrusion forming passages, respectively
  • the foaming of the trolley foam is realized, the mold opening cost is low, the process is simple, and the production efficiency is high.
  • Figure 1 is a schematic view showing the structure of a trolley foam strip of the present invention
  • Figure 2 is a plan view of the ejecting jig of the present invention.
  • FIG. 3 is a schematic structural view of the first template and the second template in the jig after clamping
  • FIG. 4 is a schematic structural view of a third template in the jig.
  • Figure 5 is a schematic structural view of the fourth template in the jig.
  • Figure 6 is a schematic view showing the structure of the fifth template in the jig.
  • a trolley foam strip includes a skeleton 19 and two barrels 20, the skeleton 19 including a bottom wall 24 and two first side walls 21 arranged in parallel, the bottom wall 24 being transversely framed In the middle and lower portions of the two first side walls 21, each of the barrels 20 is fixedly connected to an upper end surface of a first side wall 21, and a central cavity of each of the barrels 20 is disposed through a hollow cavity at both ends of the barrel 20.
  • a first gap is disposed between the two barrels 20, and the first gap provides a deformation space for the deformation of the barrel 20.
  • a positioning mechanism is disposed on an outer side of each of the first side walls 21.
  • the screw After the skeleton 19 is placed on the trolley, after being caught in the groove of the trolley by the positioning mechanism, the screw is fixed by screws, and since the skeleton 19 is a hard material member, it provides sufficient supporting force; for the barrel 20 and When the door frame is in contact, the barrel 20 is a soft material member, and the barrel 20 is prevented from scratching the surface of the door frame.
  • the lower end of the barrel 20 is provided with a mounting groove.
  • the upper end surface of the first side wall 21 and the inside of the mounting groove The bottom wall 24 is pressed, and the two sides of the mounting groove are respectively pressed and fixed with the two outer sides of the first side wall 21, and the soft material in the barrel 20 is wrapped on the outer surface of the first side wall 21 during the extrusion process. It is fixed by the bonding force between the two materials.
  • the positioning mechanism includes a first positioning block 22 that divides an outer end surface of the first side wall 21 into an upper area and a lower area, and the first positioning block 22 is used to be stuck In the groove of the trolley.
  • the lower end of the first side wall 21 is lifted outward to form an edge block 23, and the lower side of the first side wall 21
  • the end face is in contact with the groove of the trolley to provide support for the trolley foam strip, and the edge block 23 can be embedded in the corresponding latching position of the groove of the trolley.
  • a production process of a trolley foam strip includes the following steps.
  • a molding cavity specifically, an inner dimension of the third molding cavity gradually decreases toward a fifth molding cavity along a first molding cavity, and an inner dimension of the fourth molding cavity is formed along a second molding cavity to a sixth molding cavity The direction of the cavity gradually becomes smaller, so that the size is gradually reduced along the direction of the extrusion, thereby achieving supercharging;
  • the seventh molding cavity includes two tubular molding cavities and a U-shaped cavity having a U-shaped longitudinal section, the U
  • the forming type comprises two linear forming cavities arranged in parallel, and the hard material is extruded and formed into a first side wall through a linear forming cavity, and a positioning block cavity is arranged on the outer side of each of the linear forming cavities, and the hard material is rigid.
  • the first positioning block is formed, and each of the linear molding cavities communicates with a tubular molding cavity through the second communication cavity, and each of the forming cores corresponds to one of the tubular molding cavities.
  • the hard material is PP
  • the soft material is TPE
  • the jig for the above production process includes a first template 1, a second template 2, a third template 3, a fourth template 4, and a fifth template 5, which are sequentially arranged, the first template 1, the second template 2 After the third template 3, the fourth template 4 and the fifth template 5 are clamped, a skeleton forming passage and a tubular forming passage are formed, and the skeleton forming passage and the tubular forming passage pass through the first communication cavity of the fourth template 4 and the fifth template 5
  • Two communicating chambers are connected, a first feeding channel 10 and a second feeding channel 11 are arranged between the first template 1 and the second template 2, and the first feeding channel 10 is in communication with the tubular forming channel,
  • the second feed channel 11 is in communication with a skeleton forming channel in which are disposed two shaped cores 7 extending through the tubular forming channel.
  • An annular extrudate flow region is formed between the inner wall of the skeleton forming passage and the forming core 7.
  • the second feeding passage 11 communicates with the 65# extruder, which mainly injects the hard material PP, and after the hard material PP enters the skeleton forming passage, flows from the first template 1 to the fifth template 5; the first feeding passage 10 and The 40# extruder is connected, and the soft material TPE is mainly injected into the tubular molding channel, and then the molding core 7 is wrapped, and flows from the first template 1 to the fifth template 5.
  • the hard skeleton is formed by the extrusion molding technology, and the soft material TPE is injected into the tubular molding passage through the first feeding passage 10, and then extruded molding technology is adopted.
  • the two extrudates are separated from each other by the corresponding partition block in the first template 1, the second template 2 and the third template 3, and are initially combined in the fourth template 4 through the first communication cavity In the fifth template 5, the second communication chamber is finally combined to form a trolley foam strip.
  • the utility model has the advantages of simple structure, low mold opening cost and strong versatility, and the quality of the produced trolley foam is light.
  • first molding cavity 8 communicating with the first feeding channel 10 and a second molding cavity 9 communicating with the second feeding channel 11 are formed
  • first molding The cavity 8 and the second molding cavity 9 are separated by a first partitioning block on which a third molding cavity 12 communicating with the first molding cavity 8 and a fourth molding cavity communicating with the second molding cavity 9 are disposed 13.
  • the third molding cavity 12 and the fourth molding cavity 13 are separated by a second partition block, and the second partition block separates two pressure-sensitive rubbers to avoid hard material PP and soft material TPE.
  • a fifth molding cavity 14 communicating with the third molding cavity 12 and a sixth molding cavity 15 communicating with the fourth molding cavity 13 are disposed on the fourth template 4, and the fifth molding cavity 14 and the sixth molding cavity 15 are disposed.
  • a third partitioning block is disposed between the first partitioning chamber and the sixth forming cavity 15 and the sixth connecting cavity 15 and the first connecting cavity are disposed at opposite ends of the third partitioning block.
  • the support structure, the thin-wall structure and the support structure are initially connected by the first communication cavity, and the skeleton molding channel and the tubular molding channel form a seventh molding cavity 16 on the fifth template 5 through the second communication cavity, so that the thin The wall structure and the support structure are connected by the second communication cavity, and the fifth template 5 has a thickness of 10 to 15 mm, ensuring that the product is extruded under pressure stability.
  • the inner dimension of the third molding cavity 12 gradually decreases along the first molding cavity 8 toward the fifth molding cavity 14, and the inner dimension of the fourth molding cavity 13 is along the second molding.
  • the cavity 9 gradually becomes smaller toward the sixth molding cavity 15.
  • the third template 3 is a transitional pressure plate, and one end of the third template 3 adjacent to the molding cavity of the second template 2 is larger than one end thereof adjacent to the fourth template 4, and the molding cavity in the third template 3 is formed in the adjacent template.
  • the cavity is perfectly matched.
  • the cavity of this shape is designed in the third template 3, and the flow rate of the rubber through the third template 3 is reduced to form a pressure to ensure that the rubber can flow in every corner.
  • the seventh molding cavity 16 includes two tubular molding cavities 17 and U-shaped cavities with a U-shaped longitudinal section, and the tubular molding channels are divided into two tubular molding cavities 17 by a fourth partitioning block.
  • the U forming type includes two linearly shaped cavities 18 arranged in parallel, each of which is in communication with a tubular forming cavity 17 through a second communicating cavity, each of the forming cores 7 corresponding to one of the tubular forming cavities 17.
  • the outer end surface of the first template 1 is arranged with a mounting plate 6 , one end of the forming core 7 is fixed on the mounting plate 6 , and the forming core 7 penetrates into the tubular forming channel. It is convenient to install and disassemble the forming core 7.
  • the mounting plate 6 is fixed to the first template 1 by screws.
  • a convex cavity is arranged on the outer side wall of the linear molding cavity 18. After the extrusion molding, the convex cavity forms a mounting bump of the trolley foam strip, and after the pre-fixing of the mounting bump on the trolley, the trolley foam strip is fixed by bolts.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

一种台车泡棉条及其生产工艺，该泡棉条包括骨架（19）以及两根炮管（20），所述骨架（19）包括底壁（24）以及两个平行布置的第一侧壁（21），所述底壁（24）横架在两个第一侧壁（21）的中下部，每根所述炮管（20）与一个第一侧壁（21）的上端面固定连接，每根炮管（20）的中部设置有贯穿炮管（20）两端的中空腔，两根炮管（20）之间布置有第一间隙，每个所述第一侧壁（21）的外侧面布置有定位机构。该泡棉条结构简单，质量轻，成本低，利用率高。生产该泡棉条时，第一模板（1）、第二模板（2）、第三模板（3）、第四模板（4）和第五模板（5）合模后形成骨架成型通道和管状成型通道，分别往相应的通道内注入硬质料和软质料后实现该泡棉条的押出，其模具开模成本低，工艺简单，生产效率高。

Description

一种台车泡棉条及其生产工艺
技术领域
本发明涉及汽车零部件生产研究领域中的一种辅助器具，特别是一种台车泡棉条，还包括一种台车泡棉条的生产工艺。
背景技术
在汽车零部件的生产中，大部分的零件需要经过多道工序，此时，一般需要台车将零件周转于各工序之间。对于门框的周转，一般是在台车上通过泡棉条将门框定位并压紧在台车内。目前门框台车上有两种泡棉条，一种是带卡槽的泡棉条，起定位作用；另一种是带齿状泡棉条，起压紧作用。泡棉条通过注塑开模，做成实心的结构，密度高，增加了台车的重量，从而增加了制造成本和物料费用；泡棉条采用优利胶材质，硬度高，开模的成本大，注塑成型难度高；泡棉条使用损坏之后，只能报废，不能重复利用。亟需一种替代齿状的压紧泡棉的新型泡棉条及生产该泡棉条的生产工艺。
发明内容
本发明的目的，在于提供一种台车泡棉条，其通过炮管结构，降低其重量。
还包括一种台车泡棉条的生产工艺，其开模成本低，工艺简单，生产效率高。
本发明解决其技术问题的解决方案是：一种台车泡棉条，其包括骨架以及两根炮管，所述骨架包括底壁以及两个平行布置的第一侧壁，所述底壁横架在两个第一侧壁的中下部，每根所述炮管与一个第一侧壁的上端面固定连接，每根炮管的中部设置有贯穿炮管两端的中空腔，两根炮管之间布置有第一间隙，每个所述第一侧壁的外侧面布置有定位机构。
作为上述技术方案的进一步改进，所述炮管的下端布置有一安装凹槽，所述第一侧壁伸入到安装凹槽内后，第一侧壁的上端面与安装凹槽的内底壁压触，安装凹槽的两侧面分别与第一侧壁的两外侧面压触后固定。
作为上述技术方案的进一步改进，所述定位机构包括第一定位块，所述第一定位块将第一侧壁的外端面分成上部区域和下部区域。
作为上述技术方案的进一步改进，每个所述第一侧壁的下端延伸出底座的下端面后，第一侧壁的下端向外侧翘起成边缘卡块。
作为上述技术方案的进一步改进，所述炮管为软质料构件，所述骨架为硬质料构件。
一种台车泡棉条的生产工艺，包括以下步骤，
1） 第一模板、第二模板、第三模板、第四模板以及第五模板合模后其内部形成骨架成型通道和管状成型通道，并将两条成型芯置于管状成型通道中；
2） 往第二进料通道往骨架成型通道内注入硬质料，往第一进料通道往管状成型通道内注入软质料；
3） 软质料经过第三模板中的第三成型腔加压流向第四模板的第五成型腔，硬质料经过第三模板中的第四成型腔加压流向第四模板的第六成型腔；
4） 软质料和硬质料在第五成型腔和第六成型腔的末端出逐步连通后流入第七成型腔；
5） 软质料和硬质料在第七成型腔结合后形成台车泡棉条。
作为上述技术方案的进一步改进，所述第三成型腔的内部尺寸沿着第一成型腔往第五成型腔方向逐渐变小，所述第四成型腔的内部尺寸沿着第二成型腔往第六成型腔方向逐渐变小。
作为上述技术方案的进一步改进，所述第七成型腔包括两个管状成型腔和纵向截面为U形的U形成型腔，所述U形成型包括两个平行布置的直线状成型腔，每个所述直线状成型腔的外侧布置有一个定位块腔体，每个直线状成型腔分别通过第二连通腔与一个管状成型腔连通，每条成型芯对应一个所述管状成型腔。
作为上述技术方案的进一步改进，所述硬质料为PP，所述软质料为TPE。
本发明的有益效果是：本发明中的产品通过在炮管的中部设置有贯穿炮管两端的中空腔，降低本发明产品的重量，并且通过两个炮管将门框压紧，而通过骨架安装在台车上。本发明中产品结构简单，质量轻，成本低，并且损坏后，可以将其回收后重新押出，提高其利用率。本发明中的生产工艺，通过第一模板、第二模板、第三模板、第四模板和第五模板合模后形成骨架成型通道和管状成型通道，这两条通道为押出成型通道，分别往相应的通道内注入硬质料和软质料后实现台车泡棉的押出，其模具开模成本低，工艺简单，生产效率高。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单说明。显然，所描述的附图只是本发明的一部分实施例，而不是全部实施例，本领域的技术人员在不付出创造性劳动的前提下，还可以根据这些附图获得其他设计方案和附图。
图1是本发明中台车泡棉条的结构示意图；
图2是本发明中押出治具的俯视图；
图3是押出治具中第一模板和第二模板合模后的结构示意图；
图4是押出治具中第三模板的结构示意图；
图5是押出治具中第四模板的结构示意图；
图6是押出治具中第五模板的结构示意图。
具体实施方式
以下将结合实施例和附图对本发明的构思、具体结构及产生的技术效果进行清楚、完整地描述，以充分地理解本发明的目的、特征和效果。显然，所描述的实施例只是本发明的一部分实施例，而不是全部实施例，基于本发明的实施例，本领域的技术人员在不付出创造性劳动的前提下所获得的其他实施例，均属于本发明保护的范围。另外，文中所提到的所有联接连接关系，并非单指构件直接相接，而是指可根据具体实施情况，通过添加或减少联接辅件，来组成更优的联接结构。
参照图1，一种台车泡棉条，其包括骨架19以及两根炮管20，所述骨架19包括底壁24以及两个平行布置的第一侧壁21，所述底壁24横架在两个第一侧壁21的中下部，每根所述炮管20与一个第一侧壁21的上端面固定连接，每根炮管20的中部设置有贯穿炮管20两端的中空腔，两根炮管20之间布置有第一间隙，第一间隙为炮管20的变形提供形变空间。每个所述第一侧壁21的外侧面布置有定位机构。将骨架19放置到台车上后，通过定位机构卡在台车的凹槽中后，旋入螺钉固定，由于骨架19是硬质料构件，其提供足够的支撑力；用于炮管20与门框接触，炮管20为软质料构件，避免炮管20划伤门框表面。
进一步作为优选的实施方式，所述炮管20的下端布置有一安装凹槽，所述第一侧壁21伸入到安装凹槽内后，第一侧壁21的上端面与安装凹槽的内底壁24压触，安装凹槽的两侧面分别与第一侧壁21的两外侧面压触后固定，在押出过程中，炮管20中的软质料包裹在第一侧壁21的外表面上后通过两种材料之间的结合力固定。
进一步作为优选的实施方式，所述定位机构包括第一定位块22，所述第一定位块22将第一侧壁21的外端面分成上部区域和下部区域，第一定位块22用于卡在台车的凹槽中。
进一步作为优选的实施方式，每个所述第一侧壁21的下端延伸出底座的下端面后，第一侧壁21的下端向外侧翘起成边缘卡块23，第一侧壁21的下端面与台车的凹槽接触后为台车泡棉条提供支撑力，而边缘卡块23能嵌入到台车的凹槽相应卡位中。
参照图2~图6，一种台车泡棉条的生产工艺，包括以下步骤，
1） 第一模板1、第二模板2、第三模板3、第四模板4以及第五模板5合模后其内部形成骨架成型通道和管状成型通道，并将两条成型芯7置于管状成型通道中；
2） 往第二进料通道11往骨架成型通道内注入硬质料，往第一进料通道10往管状成型通道内注入软质料；
3） 软质料经过第三模板3中的第三成型腔加压流向第四模板4的第五成型腔，硬质料经过第三模板3中的第四成型腔加压流向第四模板4的第六成型腔，具体地，所述第三成型腔的内部尺寸沿着第一成型腔往第五成型腔方向逐渐变小，所述第四成型腔的内部尺寸沿着第二成型腔往第六成型腔方向逐渐变小，这样由于沿其押出方向尺寸逐渐减少，进而实现增压；
4） 软质料和硬质料在第五成型腔和第六成型腔的末端出逐步连通后流入第七成型腔；
5） 软质料和硬质料在第七成型腔结合后形成台车泡棉条，具体的，所述第七成型腔包括两个管状成型腔和纵向截面为U形的U形成型腔，所述U形成型包括两个平行布置的直线状成型腔，硬质料经过直线状成型腔押出成型后形成第一侧壁，每个所述直线状成型腔的外侧布置有一个定位块腔体，硬质料经过定位块腔体押出成型后形成第一定位块，每个直线状成型腔分别通过第二连通腔与一个管状成型腔连通，每条成型芯对应一个所述管状成型腔。
进一步作为优选的实施方式，所述硬质料为PP，所述软质料为TPE。
用于上述生产工艺的治具，包括依次布置的第一模板1、第二模板2、第三模板3、第四模板4以及第五模板5，所述第一模板1、第二模板2、第三模板3、第四模板4和第五模板5合模后形成骨架成型通道和管状成型通道，骨架成型通道和管状成型通道通过第四模板4的第一连通腔和第五模板5的第二连通腔连通，所述第一模板1和第二模板2之间布置有第一进料通道10和第二进料通道11，所述第一进料通道10与管状成型通道连通，所述第二进料通道11与骨架成型通道连通，所述管状成型通道内布置有两条贯穿管状成型通道的成型芯7。骨架成型通道的内壁和成型芯7之间构成环状的押出料流动区域。第二进料通道11与65#押出机连通，其主要注入硬质料PP，硬质料PP进入骨架成型通道内后，从第一模板1流向第五模板5；第一进料通道10与40#押出机连通，其主要注入软质料TPE，软质料TPE进入管状成型通道内后包裹着成型芯7，从第一模板1流向第五模板5。
通过第二进料通道11往骨架成型通道内注入硬质料PP后，通过押出成型技术形成硬质骨架，通过第一进料通道10往管状成型通道内注入软质料TPE后，通过押出成型技术形成管状的泡棉结构，这两押出料在第一模板1、第二模板2和第三模板3中通过相应的分隔块分开不接触，在第四模板4中通过第一连通腔初步结合后，在第五模板5中通过第二连通腔最终结合在一起后形成台车泡棉条。本实用新型结构简单，开模费用低，通用性强，生产出来的台车泡棉质量轻。
进一步作为优选的实施方式， 所述第一模板1和第二模板2合上后形成与第一进料通道10连通的第一成型腔8以及与第二进料通道11连通的第二成型腔9，所述第一成型腔8和第二成型腔9通过第一分隔块分隔，所述第三模板3上布置有与第一成型腔8连通的第三成型腔12和与第二成型腔9连通的第四成型腔13，所述第三成型腔12和第四成型腔13通过第二分隔块分隔，第二分隔块将压力很大的两股胶料隔开，避免硬质料PP和软质料TPE串料，所述第四模板4上布置与第三成型腔12连通的第五成型腔14和与第四成型腔13连通的第六成型腔15，所述第五成型腔14和第六成型腔15之间布置有第三分隔块，第一连通腔分布在所述第三分隔块的两侧且靠近第五模板的一端，第一连通腔连通第五成型腔14和第六成型腔15，押出料进入第四模板4后，软质料TPE初步成型软质部炮管的薄壁结构，硬质料PP初步成型硬质部骨架的支持结构，薄壁结构和支撑结构通过第一连通腔初步连接，所述骨架成型通道和管状成型通道通过第二连通腔在所述第五模板5上形成第七成型腔16，这样，薄壁结构和支撑结构通过第二连通腔连接，并且第五模板5的厚度为10~15mm，保证产品在压力稳定的情况下面挤出。
进一步作为优选的实施方式，所述第三成型腔12的内部尺寸沿着第一成型腔8往第五成型腔14方向逐渐变小，所述第四成型腔13的内部尺寸沿着第二成型腔9往第六成型腔15方向逐渐变小。第三模板3是一块过渡增压板，第三模板3中靠近第二模板2的成型腔的一端大于其靠近第四模板4的一端，第三模板3中成型腔与其相邻模板中的成型腔完美配合。在第三模板3中设计这种形状的腔体，是通过第三模板3的胶料流量变小，形成压力，保证胶料在每个角落都能流动。
进一步作为优选的实施方式，所述第七成型腔16包括两个管状成型腔17和纵向截面为U形的U形成型腔，管状成型通道通过第四分隔块分隔成两个管状成型腔17，所述U形成型包括两个平行布置的直线状成型腔18，每个直线状成型腔18分别通过第二连通腔与一个管状成型腔17连通，每条成型芯7对应一个所述管状成型腔17。
进一步作为优选的实施方式，所述第一模板1的外侧端面布置有一个安装板6，所述成型芯7的一端固定在安装板6上，所述成型芯7的穿入到管状成型通道内，便于安装和拆卸成型芯7。安装板6通过螺钉固定在第一模板1上。
进一步作为优选的实施方式，所述直线状成型腔18的外侧壁上布置有一个凸起腔。押出成型后，凸起腔形成台车泡棉条的安装凸块，通过该安装凸块预固定在台车上后，再用螺栓固定台车泡棉条。
以上是对本发明的较佳实施方式进行了具体说明，但本发明创造并不限于所述实施例，熟悉本领域的技术人员在不违背本发明精神的前提下还可作出种种的等同变型或替换，这些等同的变型或替换均包含在本申请权利要求所限定的范围内。

Claims (9)

  1. 一种台车泡棉条，其特征在于：其包括骨架以及两根炮管，所述骨架包括底壁以及两个平行布置的第一侧壁，所述底壁横架在两个第一侧壁的中下部，每根所述炮管与一个第一侧壁的上端面固定连接，每根炮管的中部设置有贯穿炮管两端的中空腔，两根炮管之间布置有第一间隙，每个所述第一侧壁的外侧面布置有定位机构。
  2. 根据权利要求1所述的台车泡棉条，其特征在于：所述炮管的下端布置有一安装凹槽，所述第一侧壁伸入到安装凹槽内后，第一侧壁的上端面与安装凹槽的内底壁压触，安装凹槽的两侧面分别与第一侧壁的两外侧面压触后固定。
  3. 根据权利要求1所述的台车泡棉条，其特征在于：所述定位机构包括第一定位块，所述第一定位块将第一侧壁的外端面分成上部区域和下部区域。
  4. 根据权利要求1所述的台车泡棉条，其特征在于：每个所述第一侧壁的下端延伸出底座的下端面后，第一侧壁的下端向外侧翘起成边缘卡块。
  5. 根据权利要求1所述的台车泡棉条，其特征在于：所述炮管为软质料构件，所述骨架为硬质料构件。
  6. 一种台车泡棉条根据权利要求1所述的台车泡棉条，其特征在于：所述炮管为软质料构件，所述骨架为硬质料构件。 的生产工艺，其特征在于：包括以下步骤，
    1） 第一模板、第二模板、第三模板、第四模板以及第五模板合模后其内部形成骨架成型通道和管状成型通道，并将两条成型芯置于管状成型通道中；
    2） 往第二进料通道往骨架成型通道内注入硬质料，往第一进料通道往管状成型通道内注入软质料；
    3） 软质料经过第三模板中的第三成型腔加压流向第四模板的第五成型腔，硬质料经过第三模板中的第四成型腔加压流向第四模板的第六成型腔；
    4） 软质料和硬质料在第五成型腔和第六成型腔的末端出逐步连通后流入第七成型腔；
    5） 软质料和硬质料在第七成型腔结合后形成权利要求1~5任一项所述的台车泡棉条。
  7. 根据权利要求6所述的台车泡棉条的生产工艺，其特征在于：所述第三成型腔的内部尺寸沿着第一成型腔往第五成型腔方向逐渐变小，所述第四成型腔的内部尺寸沿着第二成型腔往第六成型腔方向逐渐变小。
  8. 根据权利要求6所述的台车泡棉条的生产工艺，其特征在于：所述第七成型腔包括两个管状成型腔和纵向截面为U形的U形成型腔，所述U形成型包括两个平行布置的直线状成型腔，每个所述直线状成型腔的外侧布置有一个定位块腔体，每个直线状成型腔分别通过第二连通腔与一个管状成型腔连通，每条成型芯对应一个所述管状成型腔。
  9. 根据权利要求6所述的台车泡棉条的生产工艺，其特征在于：所述硬质料为PP，所述软质料为TPE。
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