WO2019227251A1 - 搪塑仪表板发泡模 - Google Patents

搪塑仪表板发泡模 Download PDF

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Publication number
WO2019227251A1
WO2019227251A1 PCT/CN2018/000239 CN2018000239W WO2019227251A1 WO 2019227251 A1 WO2019227251 A1 WO 2019227251A1 CN 2018000239 W CN2018000239 W CN 2018000239W WO 2019227251 A1 WO2019227251 A1 WO 2019227251A1
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WIPO (PCT)
Prior art keywords
mold
mold core
slider
core
upper mold
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PCT/CN2018/000239
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English (en)
French (fr)
Inventor
冯建军
徐炜
洪霏
周小兵
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南通超达装备股份有限公司
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Publication of WO2019227251A1 publication Critical patent/WO2019227251A1/zh

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    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/35—Component parts; Details or accessories
    • 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
    • B29L2031/3005—Body finishings
    • B29L2031/3008—Instrument panels

Definitions

  • the invention relates to the field of mold manufacturing, in particular to a foaming mold for a slush-molded instrument panel.
  • the self-locking mechanism of the foaming mold of the automobile instrument panel is a particularly important part of the foaming mold.
  • the foaming mold self-locking mechanism of the prior art uses one cylinder to push the other cylinder to lock. This mechanism is not easy to lock, and The relative cost is high, so the self-locking mechanism of the foam film of the instrument panel has a lot of room for improvement.
  • the present invention proposes a slush molding instrument panel foaming mold. Based on the previous molds, it has been improved in various aspects, the overall structure is reasonable, the slider is locked during foam molding, and the cost is lower than in the past. Product quality.
  • a slush molding instrument panel foaming mold includes a mold body.
  • the mold body includes an upper mold core, a lower mold core, and a plurality of sliders.
  • the upper mold core, the lower mold core, and the slider cooperate with each other.
  • a plastic skeleton passes through the skeleton.
  • the positioning mechanism is installed on the upper mold core, and the skin is adsorbed on the lower mold core by a vacuum adsorption structure.
  • a corresponding slider self-locking structure is installed on the corresponding slider, and an inflatable seal groove is arranged around the upper mold kernel. There are evenly distributed inflated sealing strips, which are divided into several sections to form a closed ring together.
  • a soft sealing strip is arranged between the two ends of the inflatable sealing strip, and the soft sealing strip is opposite to the technical sealing rib of the plastic skeleton.
  • the upper mold is further provided with a cylinder sealing structure.
  • the cylinder tight structure includes a cylinder, a connecting rod, a movable connection block and a copper plate.
  • the cylinder is fixedly installed on the upper mold through a fixing plate. Inside the cylinder, the piston rod of the cylinder is fixedly connected to the connecting rod.
  • a movable connecting block is installed at the end of the connecting rod.
  • a cylindrical copper sheet is movably mounted on the movable connecting block. The copper sheet passes through the surface of the upper mold core and slides and seals the upper mold core. The copper plate is driven to move, the copper plate is on the plastic frame, and the copper plate and the plastic frame are in sealed contact.
  • the slider includes a front slider and a core-pulling slider.
  • the front slider is fixedly installed on the front side of the lower mold core.
  • the front slider is connected to the upper mold core and the lower mold core.
  • the mold cores together form the mold cavity, and the core-pulling slider is fixedly installed in the mold cavity.
  • upper and lower die guide plates are provided on the outer periphery of the upper mold core, and corresponding slide plates are provided on the outer periphery of the lower mold kernel, and part of the slide plates are fixed on the front slider.
  • the upper and lower mold guides slide along the slide plate and press against the slide plate.
  • the upper mold core and the lower mold core are interlocked.
  • the upper and lower mold guide plates and the slide plate provided on the front slide block together constitute the front slide block.
  • a first link structure is further provided on the front slider, and the first link mechanism constitutes a second self-locking mechanism of the front slider of the foam mold.
  • the core-pulling slider adopts a second link mechanism or an air cylinder for self-locking.
  • the above technical solution is further improved and refined.
  • the cylinder diameter of the cylinder is selected according to the size of the foaming force, and the size of the foaming force is calculated according to 4Kg / cm 2 .
  • the skeleton positioning mechanism includes a vacuum chuck, a surface vacuum suction structure, and a positioning pin.
  • the vacuum chuck is fixedly installed on the outer periphery of the lower surface of the upper mold core.
  • Vacuum device, the surface vacuum suction structure includes vacuum holes and tongue-shaped sealing strips.
  • the vacuum holes are arranged on the lower surface of the upper mold core, corresponding to the large plane on the plastic skeleton.
  • the vacuum holes are connected to an independent vacuum device through a gas pipe.
  • a tongue seal is installed, and the positioning pin is fixedly installed on the lower surface of the upper mold kernel, corresponding to the pin hole on the plastic skeleton; the plastic skeleton is positioned on the lower surface of the upper mold kernel, and the pin hole and the positioning pin on the plastic skeleton are positioned Connection, the large plane on the plastic skeleton is in sealed contact with the upper mold kernel through the tongue seal, and a vacuum is drawn through the vacuum hole to form a positive vacuum environment between the large plane on the plastic skeleton, the upper mold kernel and the tongue seal, The plastic skeleton is adsorbed on the upper mold core, and the vacuum suction cup is adsorbed on the plastic skeleton, the plastic skeleton is positioned and installed more tightly. Solid.
  • the vacuum adsorption structure includes a vacuum cavity groove evenly distributed on the lower mold core, and the vacuum cavity groove is connected to an independent vacuum pumping device through a gas pipe.
  • the mold body is further provided with a temperature display, the temperature display is electrically connected to a temperature sensor, and the temperature sensor is disposed in the mold cavity.
  • the invention has the advantages that the slider self-locking structure is improved, and corresponding self-locking structures are designed for sliders at different positions, the slider locking is more firm, the structure is simpler and more reasonable, and the cost is lower than before;
  • Inflatable sealing strip design is adopted.
  • the exhaust gas is discharged through the airtight seal to discharge the exhaust gas inside the mold and seal the foaming material, so that the foaming material is in the instrument panel foaming mold type.
  • the cavities are evenly distributed to ensure that the foaming thickness of the product is uniform, full, and free of air bubbles, thereby ensuring the quality of the product;
  • the plastic skeleton is accurately positioned, and the adsorption is more firm.
  • FIG. 1 is a structural schematic diagram of a foaming mold of a slush molding instrument panel.
  • FIG. 2 is a schematic diagram of a cylinder seal structure.
  • Fig. 3 is a front view of a foaming mold of a slush molding instrument panel.
  • FIG. 4 is a self-locking structure (1) of a core pulling slider.
  • Fig. 5 shows the self-locking structure of the core pulling slider (2).
  • FIG. 6 is a schematic diagram of an installation structure of an inflatable seal.
  • FIG. 7 is a schematic diagram of a surface vacuum adsorption structure.
  • the upper mold core 1 the lower mold core 2 the slider 3 the inflatable seal 12 the soft seal 13 the cylinder 4 the connecting rod 5 the movable connection block 6 the copper sheet 7 the front slider 8 the core pulling slider 9 the upper and lower mold guides 10 the first connection Rod structure 11 Second link mechanism 9-2 Cylinder 9-1 Vacuum hole 14 Tongue seal 15.
  • a slush molding instrument panel foaming mold includes a mold body; the mold body includes an upper mold core 1, a lower mold core 2, and a plurality of sliders 3, an upper mold core 1, and a lower mold.
  • the mold core 2 and the slider 3 cooperate with each other.
  • the plastic skeleton is installed on the upper mold core 1 through a skeleton positioning mechanism.
  • the skin is adsorbed on the lower mold core 2 through a vacuum adsorption structure.
  • a corresponding slider 3 is equipped with a self-locking structure of the slider.
  • An inflatable seal groove is arranged around the upper mold core 1.
  • An inflatable seal 12 is evenly distributed in the inflatable seal groove.
  • the inflatable seal 12 is divided into several sections to form a closed ring together.
  • a soft sealing strip 13 is arranged between the soft sealing strips 13 and the plastic sealing ribs.
  • the upper mold core is also provided with a cylinder sealing structure.
  • the cylinder tight structure includes a cylinder 4, a connecting rod 5, and a movable connecting block 6.
  • copper plate 7, the cylinder 4 is fixedly installed in the upper mold core 1 through a fixed plate, the piston rod of the cylinder 4 is fixedly connected to the connecting rod 6, the movable connecting block 6 is installed at the end of the connecting rod 5, and the columnar copper is movably installed on the movable connecting block 6.
  • the slider 3 includes a front side Slider 8 and core-pulling slider 9.
  • the front-side slider 8 is fixedly installed on the front side of the lower mold core 2.
  • the front-side slider 8 and the upper mold core 1 and the lower mold core 2 together form a mold cavity, and the core-pulling slider is fixed.
  • upper and lower mold guides 10 are provided on the outer periphery of the upper mold core 1; corresponding slide plates are provided on the outer periphery of the lower mold core 2; and part of the slide plates are fixed on the front slider, and
  • the upper and lower die guides 10 slide along the slide and press against the slide.
  • the upper die 1 and the lower die 2 are interlocked.
  • the upper and lower die guides 10 and the slide provided on the front slider 8 form the front side.
  • the first self-locking mechanism of the slider 8; a first link structure 11 is also provided on the front-side slider 8, and the first link mechanism 11 mechanically self-locks to form a second self-locking mechanism of the front-side slider 8;
  • the core slider 9 adopts the second link mechanism 9-2 or the cylinder 9-1 for self-locking; the cylinder diameter of the cylinder 9-1 is selected according to the foaming force, and the foaming force Size calculated according to 4Kg / cm 2;
  • backbone positioning means according to comprises a vacuum chuck of the vacuum suction structure and a positioning pin, vacuum chuck fixedly mounted on the outer periphery of the lower surface of the upper mold core, evacuation means provided independently by a pipe connection, surface
  • the vacuum suction structure includes a vacuum hole 14 and a tongue-shaped seal 15.
  • the vacuum hole is provided on the lower surface of the upper mold core, corresponding to the large plane on the plastic skeleton.
  • the vacuum hole 14 is connected to an independent vacuum device through a gas pipe.
  • a tongue-shaped seal 15 is provided, and the positioning pin is fixedly installed on the lower surface of the upper mold kernel, corresponding to the pin hole on the plastic skeleton; the plastic skeleton is positioned on the lower surface of the upper mold kernel, and the pin hole and the positioning pin on the plastic skeleton Pin connection.
  • the large plane on the plastic frame is sealed and in contact with the upper mold core through the tongue seal. Vacuum is drawn through the vacuum hole to form a positive vacuum environment between the large plane on the plastic frame, the upper mold core and the tongue seal.
  • the vacuum suction structure includes a vacuum cavity groove evenly distributed on the lower mold core, and the vacuum cavity groove is connected with an independent vacuum pumping device through an air pipe;
  • the mold body is also provided with a temperature display, and the temperature display is electrically connected to a temperature sensor, and the temperature The sensor is set in the mold cavity.

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  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

本申请涉及一种搪塑仪表板发泡模，它包括模具本体；所述的模具本体包括上模仁、下模仁以及若干滑块，上模仁、下模仁、滑块相互配合，塑料骨架通过骨架定位机构安装在上模仁上，表皮通过真空吸附结构吸附在下模仁上，在对应滑块上配套安装有滑块自锁结构，在上模仁四周设置有充气密封条槽，充气密封条槽内均匀分布有充气密封条，充气密封条分成若干段，共同形成一个封闭环构成。

Description

搪塑仪表板发泡模 技术领域
本发明涉及模具制造领域，具体涉及一种搪塑仪表板发泡模。
背景技术
以往在塘塑发泡仪表台模具对仪表台的表面进行塘塑一层软泡时，由于发泡材料充填模具内腔的时间存在先后，模具内腔气体分布不均匀等因素，在模具成型时则出现成型不足或则漏料等缺陷，从而影响产品的质量。
汽车仪表台发泡模的自锁机构是发泡模部分特别重要的环节，目前现有技术的发泡模自锁机构采用的一个气缸推动另一个气缸锁住，这种机构不易锁紧，而且相对成本高，所以仪表台发泡膜的自锁机构有很大的改进空间。
发明内容
为解决上述问题，本发明提出一种搪塑仪表板发泡模，在以往模具基础上，多方面改进，整体结构合理，发泡成型时，滑块锁紧，且成本较以往较低，提高了产品质量。
本发明的技术方案：
一种搪塑仪表板发泡模，它包括模具本体；所述的模具本体包括上模仁、下模仁以及若干滑块，上模仁、下模仁、滑块相互配合，塑料骨架通过骨架定位机构安装在上模仁上，表皮通过真空吸附结构吸附在下模仁上，在对应滑块上配套安装有滑块自锁结构，在上模仁四周设置有充气密封条槽，充气密封条槽内均匀分布有充气密封条，充气密封条分成若干段，共同形成一个封闭环构成。
对上述技术方案作进一步的改进和细化，在两端段充气密封条之间设置有软密封条，软密封条与塑料骨架的工艺密封筋相对。
对上述技术方案作进一步的改进和细化，所述的上模上还设置有气缸密封结构，气缸密结构包括气缸、连接杆、活动连接块以及铜片，气缸通过固定板固定安装在上模仁内，气缸活塞杆固定连接连接杆，连接杆末端安装有活动连接块，活动连接块上活动安装有柱状铜片，铜片穿过上模仁表面，与上模仁之间滑动密封连接，气缸驱动铜片移动，铜片顶在塑料骨架上，铜片与塑料骨架之间密封接触。
对上述技术方案作进一步的改进和细化，所述的滑块包括前侧滑块以及抽芯滑块，前侧滑块固定安装在下模仁前侧，前侧滑块与上模仁、下模仁共同构成模具型腔，抽芯滑块固定安装在模具型腔内。
对上述技术方案作进一步的改进和细化，在上模仁外周四侧设置有上下模导板，在下模仁外周四侧设置有对应设置有滑板，且部分滑板固定在前侧滑块上，合模时，上下模导板沿着滑板滑动，并顶在滑板上，上模仁与下模仁互锁，同时上下模导板与设置在前侧滑块上的滑板共同构成前侧滑块的第一自锁机构。
对上述技术方案作进一步的改进和细化，在前侧滑块上还设置有第一连杆结构，第一连杆机构构成发泡模的前侧滑块的第二自锁机构。
对上述技术方案作进一步的改进和细化，抽芯滑块采用第二连杆机构或气缸进行自锁。
对上述技术方案作进一步的改进和细化，所述的气缸的缸径根据发泡力大小进行选择，发泡力的大小按照4Kg/cm 2计算。
对上述技术方案作进一步的改进和细化，所述的骨架定位机构包括真空吸盘、面真空吸附结构以及定位销，真空吸盘固定安装在上模仁的下表面外周，通过气管连接独立设置的抽真空装置，面真空吸附结构包括真空孔以及舌型密封条，真空孔设置在上模仁下表面上，对应塑料骨架上的大平面，真空孔通过气管连接独立设置的抽真空装置，在真空孔的外周一圈设置舌型密封条，定位销固定安装在上模仁下表面，对应塑料骨架上的销孔；塑料骨架定位设置在上模仁下表面，塑料骨架上的销孔与定位销销连接，塑料骨架上的大平面通过舌型密封条与上模仁之间密封接触，通过真空孔抽真空，在塑料骨架上的大平面、上模仁与舌型密封条之间形成正真空环境，使得塑料骨架吸附在上模仁上，再加上真空吸盘对塑料骨架的吸附，塑料骨架定位安装更加紧密、牢固。
对上述技术方案作进一步的改进和细化，所述的真空吸附结构包括均匀分布在下模仁上的真空腔槽，真空腔槽通过气管连接独立设置的抽真空装置。
对上述技术方案作进一步的改进和细化，所述的模具本体上还设置有温度显示器，温度显示器电连接温度感应器，温度感应器设置在模具型腔内。
本发明优点是，改进了滑块自锁结构，针对不同位置滑块设计相应的自锁结构，滑块锁紧更加牢固，且结构更加简单合理，成本较以往较低；
采用充气密封条设计，当发泡材料进入模具型腔后，通过充气密封充气的先后，来模具内部废气的排放和实现对发泡材料的密封，从而使发泡材料在仪表板发泡模具型腔均匀分布，保证了产品发泡厚度均匀、饱满、无气泡，进而保证了产品的质量；
通过骨架定位机构使得塑料骨架的准确定位，且吸附更加牢固。
附图说明
图1是搪塑仪表板发泡模结构示意图。
图2是气缸密封结构示意图。
图3是搪塑仪表板发泡模前视图。
图4是抽芯滑块自锁结构(1)。
图5是抽芯滑块自锁结构(2)。
图6是充气密封条安装结构示意图。
图7是面真空吸附结构示意图。
图中 上模仁1 下模仁2 滑块3 充气密封条12 软密封条13 气缸4 连接杆5 活动连接块6 铜片7 前侧滑块8 抽芯滑块9 上下模导板10 第一连杆结构11 第二连杆机构9-2 气缸9-1 真空孔14 舌型密封条15。
具体实施方式
如图1-7所示，一种搪塑仪表板发泡模，它包括模具本体；所述的模具本体包括上模仁1、下模仁2以及若干滑块3，上模仁1、下模仁2、滑块3相互配合，塑料骨架通过骨架定位机构安装在上模仁1上，表皮通过真空吸附结构吸附在下模仁2上，在对应滑块3上配套安装有滑块自锁结构，在上模仁1四周设置有充气密封条槽，充气密封条槽内均匀分布有充气密封条12，充气密封条12分成若干段，共同形成一个封闭环构成；在两端段充气密封条之间设置有软密封条13，软密封条13与塑料骨架的工艺密封筋相对；所述的上模仁上还设置有气缸密封结构，气缸密结构包括气缸4、连接杆5、活动连接块6以及铜片7，气缸4通过固定板固定安装在上模仁1内，气缸4活塞杆固定连接连接杆6，连接杆5末端安装有活动连接块6，活动连接块6上活动安装有柱状铜片7，铜片7穿过上模仁1表面，与上模仁1之间滑动密封连接，气缸4驱动铜片7移动，铜片7顶在塑料骨架上，铜片7与塑料骨架之间密封接触；所述的滑块3包括前侧滑块 8以及抽芯滑块9，前侧滑块8固定安装在下模仁2前侧，前侧滑块8与上模仁1、下模仁2共同构成模具型腔，抽芯滑块固定安装在模具型腔内；在上模仁1外周四侧设置有上下模导板10，在下模仁2外周四侧设置有对应设置有滑板，且部分滑板固定在前侧滑块上，合模时，上下模导板10沿着滑板滑动，并顶在滑板上，上模仁1与下模仁2互锁，同时上下模导板10与设置在前侧滑块8上的滑板共同构成前侧滑块8的第一自锁机构；在前侧滑块8上还设置有第一连杆结构11，第一连杆机构11机械自锁构成前侧滑块8的第二自锁机构；抽芯滑块9采用第二连杆机构9-2或气缸9-1进行自锁；所述的气缸9-1的缸径根据发泡力大小进行选择，发泡力的大小按照4Kg/cm 2计算；所述的骨架定位机构包括真空吸盘、面真空吸附结构以及定位销，真空吸盘固定安装在上模仁的下表面外周，通过气管连接独立设置的抽真空装置，面真空吸附结构包括真空孔14以及舌型密封条15，真空孔设置在上模仁下表面上，对应塑料骨架上的大平面，真空孔14通过气管连接独立设置的抽真空装置，在真空孔14的外周一圈设置舌型密封条15，定位销固定安装在上模仁下表面，对应塑料骨架上的销孔；塑料骨架定位设置在上模仁下表面，塑料骨架上的销孔与定位销销连接，塑料骨架上的大平面通过舌型密封条与上模仁之间密封接触，通过真空孔抽真空，在塑料骨架上的大平面、上模仁与舌型密封条之间形成正真空环境，使得塑料骨架吸附在上模仁上，再加上真空吸盘对塑料骨架的吸附，塑料骨架定位安装更加紧密、牢固；所述的真空吸附结构包括均匀分布在下模仁上的真空腔槽，真空腔槽通过气管连接独立设置的抽真空装置；所述的模具本体上还设置有温度显示器，温度显示器电连接温度感应器，温度感应器设置在模具型腔内。
由于文字表达的有限性，而客观上存在无限的具体结构，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进、润饰或变化，也可以将上述技术特征以适当的方式进行组合；这些改进润饰、变化或组合，或未经改进将发明的构思和技术方案直接应用于其它场合的，均应视为本发明的保护范围。

Claims (10)

  1. 一种搪塑仪表板发泡模，其特征在于：它包括模具本体；所述的模具本体包括上模仁、下模仁以及若干滑块，上模仁、下模仁、滑块相互配合，塑料骨架通过骨架定位机构安装在上模仁上，表皮通过真空吸附结构吸附在下模仁上，在对应滑块上配套安装有滑块自锁结构，在上模仁四周设置有充气密封条槽，充气密封条槽内均匀分布有充气密封条，充气密封条分成若干段，共同形成一个封闭环构成。
  2. 根据权利要求1所述的一种搪塑仪表板发泡模，其特征在于：在两端段充气密封条之间设置有软密封条，软密封条与塑料骨架的工艺密封筋相对。
  3. 根据权利要求1所述的一种搪塑仪表板发泡模，其特征在于：所述的上模上还设置有气缸密封结构，气缸密结构包括气缸、连接杆、活动连接块以及铜片，气缸通过固定板固定安装在上模仁内，气缸活塞杆固定连接连接杆，连接杆末端安装有活动连接块，活动连接块上活动安装有柱状铜片，铜片穿过上模仁表面，与上模仁之间滑动密封连接，气缸驱动铜片移动，铜片顶在塑料骨架上，铜片与塑料骨架之间密封接触。
  4. 根据权利要求1所述的一种搪塑仪表板发泡模，其特征在于：所述的滑块包括前侧滑块以及抽芯滑块，前侧滑块固定安装在下模仁前侧，前侧滑块与上模仁、下模仁共同构成模具型腔，抽芯滑块固定安装在模具型腔内。
  5. 根据权利要求4所述的一种搪塑仪表板发泡模，其特征在于： 在上模仁外周四侧设置有上下模导板，在下模仁外周四侧设置有对应设置有滑板，且部分滑板固定在前侧滑块上，合模时，上下模导板沿着滑板滑动，并顶在滑板上，上模仁与下模仁互锁，同时上下模导板与设置在前侧滑块上的滑板共同构成前侧滑块的第一自锁机构。
  6. [根据细则91更正 30.08.2018]　
    根据权利要求4所述的一种搪塑仪表板发泡模，其特征在于:在前侧滑块上还设置有第一连杆结构，第一连杆机构构成发泡模的前侧滑块的第二自锁机构。
  7. [根据细则91更正 30.08.2018]　
    根据权利要求4所述的一种搪塑仪表板发泡模，其特征在于:抽芯滑块采用第二连杆机构或气缸进行自锁，所述的气缸的缸径根据发泡力大小进行选择，发泡力的大小按照4Kg/cm2计算。
  8. 根据权利要求1所述的一种搪塑仪表板发泡模，其特征在于：所述的骨架定位机构包括真空吸盘、面真空吸附结构以及定位销，真空吸盘固定安装在上模仁的下表面外周，通过气管连接独立设置的抽真空装置，面真空吸附结构包括真空孔以及舌型密封条，真空孔设置在上模仁下表面上，对应塑料骨架上的大平面，真空孔通过气管连接独立设置的抽真空装置，在真空孔的外周一圈设置舌型密封条，定位销固定安装在上模仁下表面，对应塑料骨架上的销孔。
  9. 根据权利要求1所述的一种搪塑仪表板发泡模，其特征在于：所述的真空吸附结构包括均匀分布在下模仁上的真空腔槽，真空腔槽通过气管连接独立设置的抽真空装置。
  10. 根据权利要求1所述的一种搪塑仪表板发泡模，其特征在于：所述的模具本体上还设置有温度显示器，温度显示器电连接温度感应器，温度感应器设置在模具型腔内。
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