阅读说明：本技术 一种汽车扶手生产工艺 (Production process of automobile armrest ) 是由 姜文浩 于 2020-12-25 设计创作，主要内容包括：本发明公开了一种汽车扶手生产工艺,所述汽车扶手生产工艺包括以下步骤：扶手骨架注塑成型及冷却定型-汽车扶手骨架表面除尘-包覆材料裁切-缓冲层粘合固定-外覆层粘合固定-修整检验得到成品。通过上述方式,本发明能够替代常用扶手骨架表面发泡工艺,提高汽车扶手骨架的生产效率和乘员使用时的舒适性。(The invention discloses an automobile handrail production process, which comprises the following steps: the method comprises the steps of injection molding and cooling setting of the armrest framework, dust removal of the surface of the automobile armrest framework, cutting of a coating material, bonding and fixing of a buffer layer, bonding and fixing of an outer coating, and finishing and inspection to obtain a finished product. Through the mode, the surface foaming process of the common handrail framework can be replaced, and the production efficiency of the automobile handrail framework and the comfort of passengers during use are improved.)

1. The production process of the automobile handrail is characterized by comprising the following steps of:

firstly, melting thermoplastic plastic particles through an injection molding machine according to process requirements, then injecting the melted thermoplastic plastic particles into an automobile armrest framework mold to mold an automobile armrest framework in one step, cooling the molded automobile armrest framework to normal temperature, and then placing for 20-30 min until the molded automobile armrest framework is completely shaped;

step two, checking the automobile handrail framework obtained in the step one, and removing surface dust by using an electrostatic dust collector after removing unqualified products;

designing a coating material standard sample plate according to the shape of the automobile armrest framework, and cutting the buffer layer and the outer coating of the armrest framework by using the coating material standard sample plate respectively;

spraying glue on the inner side of the buffer layer and the outer surface of the automobile armrest framework respectively, attaching the buffer layer to the outer surface of the automobile armrest framework, and baking, bonding and fixing;

step five, respectively spraying glue on the outer side of the buffer layer and the inner side of the outer coating, then covering the outer coating on the outer side of the buffer layer, completely wrapping the automobile handrail framework, and then baking and fixing;

and step six, finishing the coated automobile handrail framework by using a special tool to obtain an automobile handrail finished product.

2. The process for producing an automobile armrest according to claim 1, wherein the thermoplastic particles are nylon or PP.

3. The production process of the automobile armrest according to claim 1, wherein the buffer layer is made of non-woven fabric, and the thickness of the buffer layer is 5-10 mm.

4. The production process of the automobile armrest according to claim 1, wherein the outer skin comprises an inner layer and an outer layer, the outer layer is made of real leather or leather-like material, and the inner layer is made of sponge.

5. The process for producing an automobile armrest according to claim 1, wherein the coating material standard patterns include two types, one type is a buffer layer coating material standard pattern and the other type is an outer coating material standard pattern, and the periphery of the outer coating material standard pattern is 0.5 to 1cm larger than the periphery of the buffer layer coating material.

6. The production process of the automobile armrest according to claim 1, wherein the glue used in the fourth step and the fifth step is a two-component high-temperature quick-drying glue, and the quick-drying baking temperature of the two-component high-temperature quick-drying glue is 160-180 ℃.

Technical Field

The invention relates to the field of accessories of automobiles, in particular to a production process of an automobile armrest.

Background

With the development of times and social progress, the automobile industry in China develops rapidly and gradually enters thousands of households, and with the increasing preservation of automobiles by people, the requirement on the comfort of automobiles in riding is higher and higher. Wherein the car handrail can provide the shelve space of hand elbow for the passenger as passenger's hand support instrument, stability when improving to take, the indispensable annex for every car, but because the handrail directly contacts with the hand, so have higher requirement to the travelling comfort, the foaming polyurethane that commonly uses on the market at present reaches the soft effect of surface touch, but foaming polyurethane itself wearability is poor, feel relatively poor, there is the stimulus easily to sensitive skin, and need pass through in the production process foaming, processes such as overlap of polishing, the time is longer, production efficiency is lower.

Disclosure of Invention

The invention mainly solves the technical problem of providing an automobile handrail production process, which can improve the production efficiency and comfort of the handrail.

In order to solve the technical problems, the invention adopts a technical scheme that: the production process of the automobile handrail comprises the following steps:

firstly, melting thermoplastic plastic particles through an injection molding machine according to process requirements, then injecting the melted thermoplastic plastic particles into an automobile armrest framework mold to mold an automobile armrest framework in one step, cooling the molded automobile armrest framework to normal temperature, and then placing for 20-30 min until the molded automobile armrest framework is completely shaped;

step two, checking the automobile handrail framework obtained in the step one, and removing surface dust by using an electrostatic dust collector after removing unqualified products;

designing a coating material standard sample plate according to the shape of the automobile armrest framework, and cutting the buffer layer and the outer coating of the armrest framework by using the coating material standard sample plate respectively;

spraying glue on the inner side of the buffer layer and the outer surface of the automobile armrest framework respectively, attaching the buffer layer to the outer surface of the automobile armrest framework, and baking, bonding and fixing;

step five, respectively spraying glue on the outer side of the buffer layer and the inner side of the outer coating, then covering the outer coating on the outer side of the buffer layer, completely wrapping the automobile handrail framework, and then baking and fixing;

and step six, finishing the coated automobile handrail framework by using a special tool to obtain an automobile handrail finished product.

In a preferred embodiment of the present invention, the thermoplastic particles are nylon or PP.

In a preferred embodiment of the present invention, the buffer layer is made of a non-woven fabric material, and the thickness of the buffer layer is 5 to 10 mm.

In a preferred embodiment of the invention, the outer skin comprises an inner layer and an outer layer, the outer layer is made of real leather or imitation leather material, and the inner layer is made of sponge.

In a preferred embodiment of the present invention, the coating material standard templates include two types, one is a buffer layer coating material standard template, and the other is an outer coating material standard template, and the periphery of the outer coating material standard template is 0.5 to 1cm larger than the periphery of the buffer layer coating material.

In a preferred embodiment of the invention, the glue used in the fourth step and the fifth step is a two-component high-temperature quick-drying glue, and the quick-drying baking temperature of the two-component high-temperature quick-drying glue is 160-180 ℃.

The invention has the beneficial effects that: according to the invention, the common handrail framework surface polyurethane foaming technology is replaced by a mode of coating the elastic material on the injection-molded framework in a multilayer manner, so that on one hand, the production efficiency is improved, a satisfactory combination effect can be achieved only by gluing and baking the coated material, the production time of a single piece is obviously reduced, on the other hand, the outermost coating material can be adjusted according to needs, the whole handrail is more attractive and elegant by coating with the imitation leather or real leather material, meanwhile, the affinity between the handrail surface and the human skin is improved, and the use comfort of passengers is improved.

Detailed Description

The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more readily understand the advantages and features of the present invention, and to clearly and unequivocally define the scope of the present invention.

The embodiment of the invention comprises the following steps:

example 1

The production process of the automobile armrest comprises the following steps:

firstly, melting nylon plastic particles through an injection molding machine according to process requirements, then injecting the melted nylon plastic particles into an automobile armrest framework mold to mold an automobile armrest framework in one step, cooling the molded automobile armrest framework to normal temperature, and then placing for 20-30 min until the automobile armrest framework is completely molded;

step two, checking the automobile handrail framework obtained in the step one, and removing surface dust by using an electrostatic dust collector after removing unqualified products;

designing a coating material standard sample plate according to the shape of the automobile handrail framework, and cutting a buffer layer and an outer coating of the handrail framework respectively by using the coating material standard sample plate, wherein the buffer layer is made of non-woven fabric with the thickness of 10mm, the outer coating is made of a composite material with the inner side being sponge and the outer side being real leather, and the composite structure can meet the requirements of appearance and hand feeling of the handrail in use, improve the adhesive force of the sponge layer and prevent the sponge layer from being insufficient in adhesive force when the sponge layer is directly adhered to the handrail framework;

spraying glue on the inner side of the buffer layer and the outer surface of the automobile armrest framework respectively, attaching the buffer layer to the outer surface of the automobile armrest framework, and baking, bonding and fixing;

step five, respectively spraying glue on the outer side of the buffer layer and the inner side of the outer coating, then covering the outer coating on the outer side of the buffer layer, completely wrapping the automobile handrail framework, and then baking and fixing;

and step six, finishing the coated automobile handrail framework by using a special tool to obtain an automobile handrail finished product.

The reason for adopting the above mode is that the handrail framework is directly coated with the buffer layer coating, and the outer coating needs to simultaneously coat the handrail framework and the buffer layer to prevent the buffer layer or the handrail framework from leaking, so the whole body is slightly larger but not too large, otherwise the coating effect is influenced.

The glue used in the fourth step and the fifth step is double-component high-temperature quick-drying glue, and the quick-drying baking temperature of the double-component high-temperature quick-drying glue is 160-180 ℃. The reason for adopting high temperature rapid-curing cutback glue is that on the one hand, prevent that glue bonding speed is too fast, if can't adjust by the problem after the adhesion, on the other hand, can prevent that the design time overlength, adhesion point warp along with gravity after the adhesion through the mode of high temperature toasting to finalize the design fast.

Example 2

The production process of the automobile armrest comprises the following steps:

melting PP plastic particles through an injection molding machine according to process requirements, injecting the melted PP plastic particles into an automobile armrest framework mold to form an automobile armrest framework in one step, cooling the formed automobile armrest framework to normal temperature, and then placing for 20-30 min until the automobile armrest framework is completely shaped;

step two, checking the automobile handrail framework obtained in the step one, and removing surface dust by using an electrostatic dust collector after removing unqualified products;

designing a coating material standard sample plate according to the shape of the automobile handrail framework, and cutting a buffer layer and an outer coating of the handrail framework respectively by using the coating material standard sample plate, wherein the buffer layer is made of non-woven fabric with the thickness of 5mm, the outer coating is made of a composite material with the inner side being sponge and the outer side being imitation leather, and by adopting the structure, the adhesive force of the sponge layer can be improved while the requirements on appearance and hand feeling of the handrail in use are met, and the adhesive force is not enough when the sponge layer is directly adhered to the handrail framework;

spraying glue on the inner side of the buffer layer and the outer surface of the automobile armrest framework respectively, attaching the buffer layer to the outer surface of the automobile armrest framework, and baking, bonding and fixing;

step five, respectively spraying glue on the outer side of the buffer layer and the inner side of the outer coating, then covering the outer coating on the outer side of the buffer layer, completely wrapping the automobile handrail framework, and then baking and fixing;

and step six, finishing the coated automobile handrail framework by using a special tool to obtain an automobile handrail finished product.

The reason for adopting the above mode is that the handrail framework is directly coated with the buffer layer coating, and the outer coating needs to simultaneously coat the handrail framework and the buffer layer to prevent the buffer layer or the handrail framework from leaking, so the whole body is slightly larger but not too large, otherwise the coating effect is influenced.

The glue used in the fourth step and the fifth step is double-component high-temperature quick-drying glue, and the quick-drying baking temperature of the double-component high-temperature quick-drying glue is 160-180 ℃. The reason for adopting high temperature rapid-curing cutback glue is that on the one hand, prevent that glue bonding speed is too fast, if can't adjust by the problem after the adhesion, on the other hand, can prevent that the design time overlength, adhesion point warp along with gravity after the adhesion through the mode of high temperature toasting to finalize the design fast.

The difference between the above embodiment 1 and embodiment 2 is that the finished product in embodiment 1 is mainly applied to the middle-high end vehicle type, and embodiment 2 is mainly applied to the middle-low end vehicle type.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.