阅读说明：本技术 一种eva橡胶材质形成的防撞安全气囊桶工艺 (Technology for forming anti-collision safety airbag barrel by using EVA rubber material ) 是由 汪志红 于 2021-01-14 设计创作，主要内容包括：本发明公开了一种EVA橡胶材质形成的防撞安全气囊桶工艺,包括如下步骤：S1,物料混炼成型：加入 EVA 原料置于密炼机进行混炼,之后加入填料、交联剂、发泡剂、发泡助剂混炼,混炼时间为20-25min,混炼均匀后出料,得到EVA橡胶复合材料；S2,EVA橡胶造粒；S3,射出机成型和定型；S4,过恒温箱；S5,修边；S6,品检,S7,包装和出货。本发明防撞安全气囊桶主要由EVA构成,EVA是新型环保发泡材料,具有良好的缓冲、抗震、隔热、防潮、抗化学腐蚀等优点,且无毒、不吸水,还可再循环使用,因此更加环保,防撞安全气囊桶的结构设计简单、合理,使用维护成本低,不污染环境,且防撞安全气囊桶的生产工艺比较简单,生产成本低。(The invention discloses a process for forming an anti-collision safety airbag barrel made of EVA rubber, which comprises the following steps: s1, mixing and molding materials: adding EVA raw materials, mixing in an internal mixer, adding filler, a cross-linking agent, a foaming agent and a foaming auxiliary agent, mixing for 20-25min, uniformly mixing, and discharging to obtain an EVA rubber composite material; s2, granulating the EVA rubber; s3, molding and shaping by an injection molding machine; s4, passing through a constant temperature box; s5, trimming; s6, quality control, S7, packaging and shipment. The anti-collision safety airbag barrel is mainly composed of EVA, the EVA is a novel environment-friendly foaming material, has the advantages of good buffering, shock resistance, heat insulation, moisture resistance, chemical corrosion resistance and the like, is non-toxic and non-absorbent, and can be recycled, so that the barrel is more environment-friendly, the structural design of the anti-collision safety airbag barrel is simple and reasonable, the use and maintenance cost is low, the environment is not polluted, the production process of the anti-collision safety airbag barrel is simpler, and the production cost is low.)

1. The utility model provides an anticollision air bag bucket technology that EVA rubber material formed which characterized in that: the method comprises the following steps:

s1, mixing and molding materials: adding EVA raw materials, mixing in an internal mixer, adding filler, a cross-linking agent, a foaming agent and a foaming auxiliary agent, mixing for 20-25min, uniformly mixing, and discharging to obtain an EVA rubber composite material;

s2, EVA rubber granulation: the EVA rubber composite material to be granulated is automatically fed into a feeding machine through an automatic feeding machine, the feeding machine uniformly and orderly feeds the material into a plastic granulator main machine, the plastic granulator main machine realizes a granulation extrusion strip drawing process, a stainless steel cooling water tank in the plastic granulator main machine cools plastic strips extruded by a die head, a hobbing type granulator in the main machine can control the size of EVA rubber composite material particles through variable frequency control, and the particles are sucked into a storage bin through a draught fan for standby application;

s3, molding and shaping by an injection molding machine: pouring the granulated EVA rubber composite material into a material preparation barrel of an injection machine for injection process production, wherein the injection gun temperature of the injection machine is 94-100 ℃, the mold temperature of the injection machine is 170-190 ℃, the vulcanization time is 500-1200s, and cooling and demolding are carried out to obtain an anti-collision safety air bag barrel product;

s4, passing through an incubator: put into the thermostated container after drawing die with fashioned anticollision air bag bucket, the time of putting into the thermostated container is: 15-40min, the temperature of the constant temperature box is 55-95 ℃;

s5, trimming: trimming the anti-collision safety air bag barrel product, adopting liquid nitrogen to enable burrs of the product to become brittle at low temperature, using a bullet to strike the burrs, and quickly removing the burrs;

s6, quality inspection: the product has clean surface, no flying, burr and the like, and no impurities, no obvious scratches, bubble-shaped bulges, natural surface lines, no visible particles on the surface, no refraction defect, sprue gate imprint, flow marks and the like, under a 700C temperature test, after a 72-hour hot air aging test, the product has hardness change of not more than +/-15% IRHD, tensile strength change rate of not more than +/-30% and tensile elongation change of not more than-50%, all or part of the sample is in a long strip shape according to the specific shape of the sample, the sample is elongated by 10%, and is placed in the north-south or east-west direction for three months under the condition of deformation, no crack is generated by visual observation during the period, no crack is generated after the low-temperature test and the sample is knocked to break, and the sample has good elasticity and no crack phenomenon after the high-temperature test and is bent;

s7, packaging and shipping: and packaging the products after the product inspection, and then discharging the products after loading.

2. The process of claim 1 for forming an anti-collision airbag barrel of EVA rubber, wherein the process comprises the following steps: in the step S1, filler is Talcum, cross-linking agent is DCP, foaming agent is AC, and foaming auxiliary agent is ZnO.

3. The process of claim 2 for forming an anti-collision airbag barrel made of EVA rubber, wherein the process comprises the following steps: the proportion of the EVA raw material, the filler Talcum, the cross-linking agent DCP, the foaming agent AC and the foaming auxiliary agent AC is 20: 2: 2: 1: 1.

4. the process of claim 3, wherein the process comprises the steps of: the temperature of the internal mixer in the step S1 is 50-60 ℃.

5. The process of claim 4 for forming an anti-collision airbag barrel made of EVA rubber, wherein the process comprises the following steps: the grain diameter of the granules granulated in the step S2 is 2-4 mm.

6. The process of claim 5 for forming an anti-collision airbag barrel of EVA rubber, wherein the process comprises the following steps: the molding time of the injection molding machine in the step S3 is 8-20 min.

Technical Field

The invention relates to the technical field of anti-collision safety airbag barrels, in particular to a process for forming an anti-collision safety airbag barrel made of EVA rubber.

Background

Traffic accidents often occur along with the influence of a plurality of factors such as gradual improvement of vehicle performance, gradual rise of automobile holding amount, improvement of road surface flatness and uneven driving technique of primary drivers. Especially in the turning of the road, the entrance and exit of the upper and lower bridges, the entrance and exit of toll stations, side slope guardrails and the like, the traffic accident rate has obvious growth trend in recent years, higher requirements are put forward for the performance of traffic safety according to related regulation requirements, and meanwhile, warning anti-collision facilities such as anti-collision barrels and the like are specially arranged in places where traffic collision accidents easily occur, so as to prevent the traffic accident rate from being reduced as much as possible; or when the vehicle is collided, the impact of the vehicle is buffered as much as possible, the severity of the accident is reduced, and the accident loss is reduced.

The anti-collision safety airbag barrel is one of highway facilities, and is mainly used for better buffering on a highway road surface when a vehicle is accidentally impacted, so that the safety of the vehicle, passengers and the highway facilities is protected; at present, the plastics material is adopted mostly to current crashproof air bag bucket, and plastics are the material of a difficult degradation, can exist decades to last hundred years, lead to air bag bucket's environmental protection relatively poor, and the crashproof air bag bucket that plastics were made, damage easily when the striking, lead to its use reliability to reduce, and the production technology of crashproof air bag bucket is more complicated moreover, and manufacturing cost is high, for this reason we propose the crashproof air bag bucket technology of EVA rubber material formation.

Disclosure of Invention

The invention aims to provide a process for forming an anti-collision safety air bag barrel made of EVA rubber, which aims to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: an anti-collision safety airbag barrel process formed by EVA rubber materials comprises the following steps:

s1, mixing and molding materials: adding EVA raw materials, mixing in an internal mixer, adding filler, a cross-linking agent, a foaming agent and a foaming auxiliary agent, mixing for 20-25min, uniformly mixing, and discharging to obtain an EVA rubber composite material;

s2, EVA rubber granulation: the EVA rubber composite material to be granulated is automatically fed into a feeding machine through an automatic feeding machine, the feeding machine uniformly and orderly feeds the material into a plastic granulator main machine, the plastic granulator main machine realizes a granulation extrusion strip drawing process, a stainless steel cooling water tank in the plastic granulator main machine cools plastic strips extruded by a die head, a hobbing type granulator in the main machine can control the size of EVA rubber composite material particles through variable frequency control, and the particles are sucked into a storage bin through a draught fan for standby application;

s3, molding and shaping by an injection molding machine: pouring the granulated EVA rubber composite material into a material preparation barrel of an injection machine for injection process production, wherein the injection gun temperature of the injection machine is 94-100 ℃, the mold temperature of the injection machine is 170-190 ℃, the vulcanization time is 500-1200s, and cooling and demolding are carried out to obtain an anti-collision safety air bag barrel product;

s4, passing through an incubator: put into the thermostated container after drawing die with fashioned anticollision air bag bucket, the time of putting into the thermostated container is: 15-40min, the temperature of the constant temperature box is 55-95 ℃;

s5, trimming: trimming the anti-collision safety air bag barrel product, adopting liquid nitrogen to enable burrs of the product to become brittle at low temperature, using a bullet to strike the burrs, and quickly removing the burrs;

s6, quality inspection: the product has clean surface, no flying, burr and the like, and no impurities, no obvious scratches, bubble-shaped bulges, natural surface lines, no visible particles on the surface, no refraction defect, sprue gate imprint, flow marks and the like, under a 700C temperature test, after a 72-hour hot air aging test, the product has hardness change of not more than +/-15% IRHD, tensile strength change rate of not more than +/-30% and tensile elongation change of not more than-50%, all or part of the sample is in a long strip shape according to the specific shape of the sample, the sample is elongated by 10%, and is placed in the north-south or east-west direction for three months under the condition of deformation, no crack is generated by visual observation during the period, no crack is generated after the low-temperature test and the sample is knocked to break, and the sample has good elasticity and no crack phenomenon after the high-temperature test and is bent;

s7, packaging and shipping: and packaging the products after the product inspection, and then discharging the products after loading.

Preferably, the filler in step S1 is Talcum, the crosslinking agent is DCP, the foaming agent is AC, and the foaming aid is ZnO.

Preferably, the proportion of the EVA raw material, the filler Talcum, the crosslinking agent DCP, the foaming agent AC and the foaming auxiliary agent AC is 20: 2: 2: 1: 1.

preferably, the temperature of the internal mixer in the step S1 is 50-60 ℃.

Preferably, the particle size of the granules granulated in the step S2 is 2 to 4 mm.

Preferably, the molding time of the injection molding machine in the step S3 is 8-20 min.

Compared with the prior art, the invention has the beneficial effects that: the anti-collision safety airbag barrel is mainly composed of EVA, the EVA is a novel environment-friendly foaming material, has the advantages of good buffering, shock resistance, heat insulation, moisture resistance, chemical corrosion resistance and the like, is non-toxic and non-absorbent, and can be recycled, so that the barrel is more environment-friendly, the structural design of the anti-collision safety airbag barrel is simple and reasonable, the use and maintenance cost is low, the environment is not polluted, the production process of the anti-collision safety airbag barrel is simpler, and the production cost is low.

Drawings

FIG. 1 is a schematic view of the manufacturing process of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: an anti-collision safety airbag barrel process formed by EVA rubber materials comprises the following steps:

s1, mixing and molding materials: adding EVA raw materials, mixing in an internal mixer, adding filler, cross-linking agent, foaming agent and foaming auxiliary agent, mixing for 20-25min, uniformly mixing, and discharging to obtain the EVA rubber composite material.

S2, EVA rubber granulation: will treat the automatic feed machine that sends into of EVA rubber combined material of granulation through automatic feeding machine in, the feeder is in sending into the plastic granulator host computer with the material is even orderly, the plastic granulator host computer realizes granulation extrusion brace process, the plastic strip cooling of extruding the die head of stainless steel cooling trough in the plastic granulator host computer, hobbing cutter formula pelleter passes through frequency conversion control in the host computer, can control the size of EVA rubber combined material particle, inhale the storage silo with the particle through the draught fan, for use.

S3, molding and shaping by an injection molding machine: and pouring the granulated EVA rubber composite material into a material preparation barrel of an injection machine for injection process production, wherein the injection gun temperature of the injection machine is 94-100 ℃, the mold temperature of the injection machine is 170-190 ℃, and the vulcanization time is 500-1200s, and cooling and demolding are carried out to obtain the anti-collision safety airbag barrel product.

S4, passing through an incubator: put into the thermostated container after drawing die with fashioned anticollision air bag bucket, the time of putting into the thermostated container is: 15-40min, and the temperature of the constant temperature box is 55-95 ℃.

S5, trimming: the barrel product of the anti-collision safety air bag is trimmed, burrs of the product are embrittled at low temperature by adopting liquid nitrogen, the burrs are hit by using the shot, and the burrs are rapidly removed.

S6, quality inspection: the product has the advantages of clean surface, no flying, burr and the like, no impurities, no obvious scratches, no bubble-shaped bulges, natural surface lines, no visible particles on the surface, no refraction defect, no sprue mark, no flow mark and the like, the hardness of the product does not exceed +/-15% IRHD after a hot air aging test for 72 hours at 700C, the tensile strength change rate does not exceed +/-30%, the tensile elongation change rate does not exceed-50%, all or one part of the sample is in a long strip shape according to the specific shape of the sample, the sample is elongated by 10%, the product is placed in the north-south or east-west direction for three months under the deformation condition, no crack is generated by visual observation during the period, no crack is generated after the low-temperature test and the sample is knocked to break, and the sample has good elasticity and no crack phenomenon after the high-temperature test and is bent.

S7, packaging and shipping: and packaging the products after the product inspection, and then discharging the products after loading.

In the specific implementation, the filler in step S1 is Talcum, the crosslinking agent is DCP, the foaming agent is AC, and the foaming aid is ZnO.

In the specific implementation, the proportion of the EVA raw material, the filler Talcum, the crosslinking agent DCP, the foaming agent AC and the foaming auxiliary agent AC is 20: 2: 2: 1: 1.

in the specific implementation, the temperature of the internal mixer in the step S1 is 50-60 ℃.

In specific implementation, the particle size of the granules granulated in the step S2 is 2-4 mm.

In the specific implementation, the molding time of the injection molding machine in the step S3 is 8-20 min.

Example 1

The manufacturing process of the anti-collision safety air bag barrel comprises the following steps: adding an EVA raw material, placing the EVA raw material into an internal mixer for mixing, then adding a filler, a cross-linking agent, a foaming agent and a foaming auxiliary agent for mixing, wherein the filler is Talcum, the cross-linking agent is DCP, the foaming agent is AC, the foaming auxiliary agent is ZnO, and the proportion of the EVA raw material, the filler, the Talcum, the cross-linking agent DCP, the foaming agent AC and the foaming auxiliary agent AC is 20: 2: 2: 1: 1, the temperature of an internal mixer is 50 ℃, the mixing time is 20min, and the EVA rubber composite material is obtained after uniform mixing and discharging; the EVA rubber composite material to be granulated is automatically fed into a feeding machine through an automatic feeding machine, the feeding machine uniformly and orderly feeds the material into a main machine of a plastic granulator, the main machine of the plastic granulator realizes a granulating, extruding and strip-drawing process, a stainless steel cooling water tank in the main machine of the plastic granulator cools plastic strips extruded by a die head, a rotary cutter type granulator in the main machine can control the size of particles of the EVA rubber composite material through variable frequency control, the particle size of the granules is 2mm, a draught fan sucks the particles into a storage bin, the granulated EVA rubber composite material is poured into a material preparation barrel of an injection machine for injection process production, the injection machine has an injection gun temperature of 94 ℃, the injection machine has a die temperature of 170 ℃, the injection machine has a die pressing time of 8min and a vulcanization time of 500s, and an anti-collision safety airbag barrel product is obtained after cooling and demoulding; put into the thermostated container after drawing die with fashioned anticollision air bag bucket, the time of putting into the thermostated container is: 15min, the temperature of the constant temperature box is 55 ℃; trimming the anti-collision safety air bag barrel product, adopting liquid nitrogen to enable burrs of the product to become brittle at low temperature, using a bullet to strike the burrs, and quickly removing the burrs; the product is subjected to quality inspection, the surface of the product is clean and tidy, no flying, burr and the like exist, no impurities exist, no obvious scratch or bubble-shaped bulge exists, the surface lines of the product are natural, no visible particles exist on the surface, no refraction defect, no sprue mark, no flow mark and the like exist, after the product is subjected to a hot air aging test for 72 hours at 700 ℃, the hardness change of the product is not more than +/-15 percent IRHD, the tensile strength change rate is not more than +/-30 percent, the tensile elongation change rate is not more than-50 percent, all or a part of the sample is in a long strip shape according to the specific shape of the sample, the sample is elongated by 10 percent, the product is placed in a south-north or east-west direction for three months under the deformation condition, no crack appears through visual observation during the period, after the low-temperature test, no crack phenomenon appears when the sample is knocked, after the high-temperature test, the sample has good elasticity, no bending phenomenon exists, then the goods are delivered after loading.

Example 2

The manufacturing process of the anti-collision safety air bag barrel comprises the following steps: adding an EVA raw material, placing the EVA raw material into an internal mixer for mixing, then adding a filler, a cross-linking agent, a foaming agent and a foaming auxiliary agent for mixing, wherein the filler is Talcum, the cross-linking agent is DCP, the foaming agent is AC, the foaming auxiliary agent is ZnO, and the proportion of the EVA raw material, the filler, the Talcum, the cross-linking agent DCP, the foaming agent AC and the foaming auxiliary agent AC is 20: 2: 2: 1: 1, the temperature of an internal mixer is 55 ℃, the mixing time is 24min, and the EVA rubber composite material is obtained after uniform mixing and discharging; the EVA rubber composite material to be granulated is automatically fed into a feeding machine through an automatic feeding machine, the feeding machine uniformly and orderly feeds the material into a main machine of a plastic granulator, the main machine of the plastic granulator realizes a granulating, extruding and strip-drawing process, a stainless steel cooling water tank in the main machine of the plastic granulator cools plastic strips extruded by a die head, a rotary cutter type granulator in the main machine can control the size of particles of the EVA rubber composite material through variable frequency control, the particle size of the granules is 3mm, a draught fan sucks the particles into a storage bin, the granulated EVA rubber composite material is poured into a material preparation barrel of an injection machine for injection process production, the injection machine has the injection gun temperature of 96 ℃, the injection machine has the mold temperature of 180 ℃, the injection machine has the mold pressing time of 14min and the vulcanization time of 650s, and an anti-collision safety airbag barrel product is obtained after cooling and demolding; put into the thermostated container after drawing die with fashioned anticollision air bag bucket, the time of putting into the thermostated container is: 22min, the temperature of the constant temperature box is 65 ℃; trimming the anti-collision safety air bag barrel product, adopting liquid nitrogen to enable burrs of the product to become brittle at low temperature, using a bullet to strike the burrs, and quickly removing the burrs; the product is subjected to quality inspection, the surface of the product is clean and tidy, no flying, burr and the like exist, no impurities exist, no obvious scratch or bubble-shaped bulge exists, the surface lines of the product are natural, no visible particles exist on the surface, no refraction defect, no sprue mark, no flow mark and the like exist, after the product is subjected to a hot air aging test for 72 hours at 700 ℃, the hardness change of the product is not more than +/-15 percent IRHD, the tensile strength change rate is not more than +/-30 percent, the tensile elongation change rate is not more than-50 percent, all or a part of the sample is in a long strip shape according to the specific shape of the sample, the sample is elongated by 10 percent, the product is placed in a south-north or east-west direction for three months under the deformation condition, no crack appears through visual observation during the period, after the low-temperature test, no crack phenomenon appears when the sample is knocked, after the high-temperature test, the sample has good elasticity, no bending phenomenon exists, then the goods are delivered after loading.

Example 3

The manufacturing process of the anti-collision safety air bag barrel comprises the following steps: adding an EVA raw material, placing the EVA raw material into an internal mixer for mixing, then adding a filler, a cross-linking agent, a foaming agent and a foaming auxiliary agent for mixing, wherein the filler is Talcum, the cross-linking agent is DCP, the foaming agent is AC, the foaming auxiliary agent is ZnO, and the proportion of the EVA raw material, the filler, the Talcum, the cross-linking agent DCP, the foaming agent AC and the foaming auxiliary agent AC is 20: 2: 2: 1: 1, the temperature of an internal mixer is 60 ℃, the mixing time is 25min, and the EVA rubber composite material is obtained after uniform mixing and discharging; the EVA rubber composite material to be granulated is automatically fed into a feeding machine through an automatic feeding machine, the feeding machine uniformly and orderly feeds the material into a main machine of a plastic granulator, the main machine of the plastic granulator realizes a granulating, extruding and strip-drawing process, a stainless steel cooling water tank in the main machine of the plastic granulator cools plastic strips extruded by a die head, a rotary cutter type granulator in the main machine can control the size of particles of the EVA rubber composite material through variable frequency control, the particle size of the granules is 4mm, a draught fan sucks the particles into a storage bin, the granulated EVA rubber composite material is poured into a material preparation barrel of an injection machine for injection process production, the injection machine has an injection gun temperature of 100 ℃, the injection machine has a die temperature of 190 ℃, the injection machine has a die pressing time of 20min and a vulcanization time of 1200s, and an anti-collision safety airbag barrel product is obtained after cooling and demoulding; put into the thermostated container after drawing die with fashioned anticollision air bag bucket, the time of putting into the thermostated container is: 40min, the temperature of the constant temperature box is 95 ℃; trimming the anti-collision safety air bag barrel product, adopting liquid nitrogen to enable burrs of the product to become brittle at low temperature, using a bullet to strike the burrs, and quickly removing the burrs; the product is subjected to quality inspection, the surface of the product is clean and tidy, no flying, burr and the like exist, no impurities exist, no obvious scratch or bubble-shaped bulge exists, the surface lines of the product are natural, no visible particles exist on the surface, no refraction defect, no sprue mark, no flow mark and the like exist, after the product is subjected to a hot air aging test for 72 hours at 700 ℃, the hardness change of the product is not more than +/-15 percent IRHD, the tensile strength change rate is not more than +/-30 percent, the tensile elongation change rate is not more than-50 percent, all or a part of the sample is in a long strip shape according to the specific shape of the sample, the sample is elongated by 10 percent, the product is placed in a south-north or east-west direction for three months under the deformation condition, no crack appears through visual observation during the period, after the low-temperature test, no crack phenomenon appears when the sample is knocked, after the high-temperature test, the sample has good elasticity, no bending phenomenon exists, then the goods are delivered after loading.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.