阅读说明：本技术 一种锂离子电池防护保护pvc泡膜盒制造工艺 (Manufacturing process of protective PVC (polyvinyl chloride) bubble film box of lithium ion battery ) 是由 李水良 李国敏 于 2019-08-25 设计创作，主要内容包括：本发明公开了一种锂离子电池防护保护PVC泡膜盒制造工艺,步骤为：1、按照工艺要求设计对应型号、制作模具；2、注塑设备预热15～20分钟,按配比加入原材料,搅拌均匀,烘烤1.5～2小时,把固体颗粒胶料加入料斗,通过螺杆回料方式把胶粒送到熔化成液体状态,使密度、粘度均匀；注射充模：液体状胶料通过螺杆推动力把塑料注入模腔,进行保压；3、注射器机身温度控制450～500℃,冷解时间10～12秒；4、一次PVC人造革半成品成型,再二次气泡膜注塑注射充模。本发明制造的防护保护PVC泡膜盒结构完美、形状变化无穷,可以减少电池表面不同程度的破损、划伤、凸凹点、压痕不良,减少电池不良,降低厂商成本和报废率。(The invention discloses a manufacturing process of a protective PVC bubble film box of a lithium ion battery, which comprises the following steps: 1. designing a corresponding model and manufacturing a mould according to the process requirements; 2. preheating an injection molding device for 15-20 minutes, adding raw materials according to a ratio, uniformly stirring, baking for 1.5-2 hours, adding solid particle rubber materials into a hopper, and feeding the rubber particles into a melting state in a screw rod material return mode to ensure that the density and the viscosity are uniform; injecting and filling a mold: injecting the plastic into the mold cavity by the liquid rubber material through the driving force of the screw rod, and maintaining the pressure; 3. controlling the temperature of the injector body to be 450-500 ℃ and the cold decomposition time to be 10-12 seconds; 4. the PVC artificial leather semi-finished product is molded once, and then the secondary bubble film is injected and filled with the mold. The protective PVC bubble film box manufactured by the invention has perfect structure and infinite shape change, can reduce damage, scratches, convex-concave points and poor indentations of the surface of the battery in different degrees, reduces the poor battery, and reduces the cost and the rejection rate of manufacturers.)

1. A manufacturing process of a protective PVC bubble film box of a lithium ion battery is characterized by comprising the following steps:

step 1: designing a corresponding model and manufacturing a mould according to the process requirements;

step 2: firstly, preheating an injection molding device for 15-20 minutes, adding raw materials according to a ratio, uniformly stirring, baking for 1.5-2 hours, then adding a sizing material in a solid particle state into a hopper, melting colloidal particles into a liquid state in a screw rod material return mode, and cutting and compressing by screw rod threads to uniformly extrude the density and viscosity; and secondly, an injection and mold filling process: the process is that liquid passes through a metering chamber, a barrel injects premolded liquid rubber material into a mold cavity by the driving force of a screw, and the process is divided into two stages: in the first stage, liquid rubber material is fed into the die cavity from the screw through the nozzle of the die until the die cavity is filled; the second stage is a pressure maintaining stage, when the injection in the first stage is finished, the injection pressure is kept continuously, the liquid flow is maintained, and the pressure is further supplemented and the product density is increased before the liquid in the die cavity is not completely cooled, so that the pressure maintaining effect is realized;

and step 3: controlling the temperature of the injector body to be 450-500 ℃ and the cold decomposition time to be 10-12 seconds;

and 4, step 4: the PVC artificial leather semi-finished product is molded once, and then the secondary bubble film is injected and filled with the mold.

Technical Field

The invention relates to the technical field of lithium ion batteries, in particular to a manufacturing process of a protective PVC bubble film box of a lithium ion battery.

Background

The lithium ion battery has the advantages that: light weight, long life, high energy density, no memory effect, high safety, and customizable shape and size. The lithium ion battery has the following disadvantages in the turnover and production processes: in the production process, the aluminum plastic film on the surface is easy to damage, scratch, convex-concave points and indentation caused by battery turnover and packaging shipment, and if the battery is seriously short-circuited, the potential safety hazard is caused.

With the continuous improvement of the living standard and the living rhythm of people, people are oriented, and customers pursue a remarkable management idea. The family caters to the development of electrical appliances, energy storage power and digital product communication equipment towards miniaturization and microminiaturization. The key point of successful application of the lithium ion battery is the manufacturing process of the PVC bubble film box for the protection and protection of the lithium ion battery, which can be inserted and removed reversibly. Therefore, the research on the protection is very necessary. Due to the current traditional material tools: in the preparation process, static electricity is easy to exist, and dust, dirt and particle impurities are easy to stick in the injection molding process after the PVC material is melted at high temperature, so that the surface of the PVC material is poor in convex-concave points. In addition, the rear end of a battery manufacturer has 5-9 working procedures, damage, scratch, convex-concave points and poor indentation of the battery surface in different degrees can be infected in the turnover process, and finally the battery has short circuit risk and potential safety hazard caused by combustion possibility.

Disclosure of Invention

The invention aims to provide a manufacturing process of a lithium ion battery protection PVC bubble film box, which is used for the turnover, packaging and delivery of a lithium ion battery in the production process. The main use is as follows: the PVC bubble membrane forming box can customize protection measures according to different types/specifications of the lithium ion batteries, and is used for turnover, packaging and delivery in the production process.

In order to achieve the purpose, the invention provides the following technical scheme:

a manufacturing process of a protective PVC bubble film box of a lithium ion battery comprises the following specific steps:

step 1: designing a corresponding model and manufacturing a mould according to the process requirements;

step 2: firstly, preheating an injection molding device for 15-20 minutes, adding raw materials according to a ratio, uniformly stirring, baking for 1.5-2 hours, then adding a sizing material in a solid particle state into a hopper, melting colloidal particles into a liquid state in a screw rod material return mode, and cutting and compressing by screw rod threads to uniformly extrude the density and viscosity; and secondly, an injection and mold filling process: the process is that liquid passes through a metering chamber, a barrel injects premolded liquid rubber material into a mold cavity by the driving force of a screw, and the process is divided into two stages: in the first stage, liquid rubber material is fed into the die cavity from the screw through the nozzle of the die until the die cavity is filled; the second stage is a pressure maintaining stage, when the injection in the first stage is finished, the injection pressure is kept continuously, the liquid flow is maintained, and the pressure is further supplemented and the product density is increased before the liquid in the die cavity is not completely cooled, so that the pressure maintaining effect is realized;

and step 3: controlling the temperature of the injector body to be 450-500 ℃ and the cold decomposition time to be 10-12 seconds;

and 4, step 4: the PVC artificial leather semi-finished product is molded once, and then the secondary bubble film is injected and filled with the mold.

The requirements and standards of the manufacturing materials of the protective PVC bubble film box of the lithium ion battery are as follows:

the invention has the beneficial effects that: the lithium ion battery protection PVC bubble membrane box manufactured by the manufacturing process has perfect structure and infinite shape change, and the PVC bubble membrane box can reduce damage, scratches, convex-concave points and poor indentation of the battery surface in different degrees, reduce the battery failure and reduce the manufacturer cost and the rejection rate.

Drawings

Fig. 1 is a schematic structural diagram of a protective PVC bubble film box for a lithium ion battery of the invention.

In the figure, 1-one-time injection molding of liquid sizing material PVC and 2-two-time injection molding of a bubble film of the liquid sizing material are carried out.

Detailed Description

The present invention is described in detail below with reference to specific embodiments, and the description in this section is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

Example 1:

a manufacturing process of a protective PVC bubble film box of a lithium ion battery comprises the following specific steps:

1. step 1: designing a corresponding model and manufacturing a mould according to the process requirements;

2. step 2: firstly, preheating an injection molding device for 15 minutes, adding raw materials according to a ratio, uniformly stirring, baking for 1.5 hours, then adding a sizing material in a solid particle state into a hopper, melting colloidal particles into a liquid state in a screw rod material return mode, and cutting and compressing by screw rod threads to uniformly extrude the density and viscosity; and secondly, an injection and mold filling process: the process is that liquid passes through a metering chamber, a barrel injects premolded liquid rubber material into a mold cavity by the driving force of a screw, and the process is divided into two stages: in the first stage, liquid rubber material is fed into the die cavity from the screw through the nozzle of the die until the die cavity is filled; the second stage is a pressure maintaining stage, when the injection in the first stage is finished, the injection pressure is kept continuously, the liquid flow is maintained, and the pressure is further supplemented and the product density is increased before the liquid in the die cavity is not completely cooled, so that the pressure maintaining effect is realized;

3. and step 3: controlling the temperature of the injector body to be 450 ℃ and the cold-decomposition time to be 10 seconds;

4. and 4, step 4: the PVC artificial leather semi-finished product is molded once, and then the secondary bubble film is injected and filled with the mold.

Example 2:

a manufacturing process of a protective PVC bubble film box of a lithium ion battery comprises the following specific steps:

1. step 1: designing a corresponding model and manufacturing a mould according to the process requirements;

2. step 2: firstly, preheating an injection molding device for 20 minutes, adding raw materials according to a ratio, uniformly stirring, baking for 2 hours, then adding a sizing material in a solid particle state into a hopper, feeding colloidal particles into a hopper in a screw rod material return mode to be molten into a liquid state, and cutting and compressing by screw rod threads to uniformly extrude the density and viscosity; and secondly, an injection and mold filling process: the process is that liquid passes through a metering chamber, a barrel injects premolded liquid rubber material into a mold cavity by the driving force of a screw, and the process is divided into two stages: in the first stage, liquid rubber material is fed into the die cavity from the screw through the nozzle of the die until the die cavity is filled; the second stage is a pressure maintaining stage, when the injection in the first stage is finished, the injection pressure is kept continuously, the liquid flow is maintained, and the pressure is further supplemented and the product density is increased before the liquid in the die cavity is not completely cooled, so that the pressure maintaining effect is realized;

3. and step 3: controlling the temperature of the injector body to be 500 ℃ and the cold decomposition time to be 12 seconds;

4. and 4, step 4: the PVC artificial leather semi-finished product is molded once, and then the secondary bubble film is injected and filled with the mold.

Example 3:

a manufacturing process of a protective PVC bubble film box of a lithium ion battery comprises the following specific steps:

1. step 1: designing a corresponding model and manufacturing a mould according to the process requirements;

2. step 2: firstly, preheating an injection molding device for 18 minutes, adding raw materials according to a ratio, uniformly stirring, baking for 1.8 hours, then adding a sizing material in a solid particle state into a hopper, melting colloidal particles into a liquid state in a screw rod material return mode, and cutting and compressing by screw rod threads to uniformly extrude the density and viscosity; and secondly, an injection and mold filling process: the process is that liquid passes through a metering chamber, a barrel injects premolded liquid rubber material into a mold cavity by the driving force of a screw, and the process is divided into two stages: in the first stage, liquid rubber material is fed into the die cavity from the screw through the nozzle of the die until the die cavity is filled; the second stage is a pressure maintaining stage, when the injection in the first stage is finished, the injection pressure is kept continuously, the liquid flow is maintained, and the pressure is further supplemented and the product density is increased before the liquid in the die cavity is not completely cooled, so that the pressure maintaining effect is realized;

3. and step 3: controlling the temperature of the injector body to 480 ℃ and the cold-decomposition time to 11 seconds;

4. and 4, step 4: the PVC artificial leather semi-finished product is molded once, and then the secondary bubble film is injected and filled with the mold.

The lithium ion battery protection PVC bubble membrane box manufactured by the manufacturing process has perfect structure and infinite shape change, and the PVC bubble membrane box can reduce damage, scratches, convex-concave points and poor indentation of the battery surface in different degrees, reduce the battery failure and reduce the manufacturer cost and the rejection rate.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.