Manufacturing method of PVC pipeline heating device for producing PVC glove powder

- Jan 23, 2021-

【Background technique】:

Disposable PVC gloves are an emerging industry, originated in the United States, gradually developed in Japan, and then entered Taiwan, China. With the increase in manufacturing costs in Taiwan, its production has gradually shifted to mainland China and has developed rapidly. At present, mainland China has become the world The production base of PVC gloves is the world's most important supplier of PVC gloves. Most of the domestic PVC glove production facilities were built in the 1980s and 1990s, and most of them are mainly for the production of industrial grade PVC gloves. Due to the technical difficulty required for production of high-end medical grade PVC gloves, about 90% of the PVC glove production lines cannot Stable production of medical grade gloves.

The PVC paste for medical-grade PVC gloves has special properties. The mixing process needs to be kept within the range of 45-55°C to maintain the stability of the paste performance and does not negatively affect the ratio of glove quality. However, in winter, the indoor and outdoor temperatures are generally low, and the plasticizer can be preheated through the storage tank to reach the standard use temperature of 30°C or more, but the PVC powder is transported from the outdoor to the indoor storage for use, and the temperature is still 10 Below °C, there is a temperature difference of more than 20 °C with the plasticizer. In the presence of temperature difference, when PVC powder is put into the plasticizer, it is easy to cause the PVC powder to agglomerate, absorb the plasticizer poorly, and is not easy to disperse, which will eventually cause the ratio of glove quality to fluctuate or decrease.

[Utility model content]:

In order to solve the deficiencies in the above technical problems, the purpose of the present utility model is to provide a PVC pipe heating device for powdering PVC gloves that can overcome the above defects and improve production efficiency.

The PVC pipeline heating device for producing PVC gloves for powder feeding provided by the utility model includes a silo. The powder in the powder silo is transported by a pipeline. The pipeline is equipped with a transmission chain. The transmission of the chain is controlled by a control system. The pipeline passes through the PVC. The powder casting outlet is connected to the batching mixing tank; it also includes the controllability and heating system, and the controllability and heating system connect the pipeline to heat the PVC powder in the pipeline.

The controllability and heating system includes an air compressor. The air compressor connects the pipe with an air distribution valve and an air pipe group through a compressed air transmission pipeline, and the air distribution valve is controlled by a control system. The trachea group passes into the pipeline, and the outlet is embedded under the pipeline, which can blow up the PVC powder and heat it quickly and evenly.

The chain is provided with a disc that matches the inner diameter of the pipe. Used to efficiently pull PVC powder to run in the pipeline.

The compressed air transmission pipeline passes through the PVC glove production workshop to heat the heat-shrinkable air, and to heat the part outside the PVC workshop.

The pipeline is divided into upper and lower sections, and the PVC powder injection outlet is arranged in the lower section of the pipeline.

A solenoid valve and a temperature detector are arranged at the outlet of the PVC powder, the solenoid valve is controlled by a control system, and the control system collects temperature data detected by the temperature detector.

The beneficial effects of the utility model are:

The utility model realizes the automatic heating and temperature control of the PVC powder during the powder feeding process, and solves the problem that the temperature of the PVC powder is too low and the temperature difference between the PVC powder and the plasticizer is too large during the powder feeding in winter.

It has been verified that after using the utility model, the temperature of the exported PVC powder in winter can be normally maintained above 30°C, and there is basically no temperature difference with the preheated plasticizer, which eliminates the difference in the batching conditions between winter and summer. The problem of high and low quality gloves in winter or generally decreases.

nitrile vinyl glove blend dipping machine

【Sovereignty Item】

1. A PVC pipeline heating device for producing PVC gloves for powder throwing, which is characterized in that it includes a silo. The powder in the powder silo is transported by a pipeline. The pipeline is equipped with a transmission chain. The transmission of the chain is controlled by the control system. The batching mixing tank is connected through the PVC powder casting outlet; it also includes the controllability and heating system, and the controllability and heating system connects the pipeline to heat the PVC powder in the pipeline.

2. The PVC pipe heating device for producing PVC gloves for powdering according to claim 1, characterized in that the controllability and heating system includes an air compressor, and the air compressor passes through a compressed air transmission pipe with an air valve The pipe is connected to the air pipe group, and the air distribution valve is controlled by the control system.

3. The PVC pipe heating device for producing PVC gloves for powdering according to claim 1, wherein the chain is provided with a disc that matches the inner diameter of the pipe.

4. The PVC pipe heating device for producing PVC gloves for powdering according to claim 2, characterized in that the compressed air transmission pipe is used to heat shrink air through the PVC glove production workshop, and is located outside the PVC workshop Part of insulation.

5. The PVC pipe heating device for producing PVC gloves for powder feeding according to claim 1, characterized in that the pipe is divided into two upper and lower sections, and the PVC powder casting outlet is arranged in the lower section of the pipe. 6. The PVC pipe heating device for the production of PVC gloves for powder feeding according to claim 1 or 5, wherein a solenoid valve and a temperature detector are arranged at the PVC powder feeding outlet, and the solenoid valve is controlled by a control system. The control system collects temperature data detected by the temperature detector.

【Patent Abstract】

The utility model relates to a PVC pipeline heating device for producing PVC gloves for powder feeding, which is characterized in that it includes a silo, the powder in the powder silo is transported by a pipeline, and a transmission chain is arranged in the pipeline, and the transmission of the chain is controlled by a control system , The pipeline is connected to the batching mixing tank through the PVC powder injection outlet; it also includes the controllability and heating system, and the controllability and heating system connect the pipeline to heat the PVC powder in the pipeline. The temperature of the PVC powder in the export of the utility model can be normally maintained above 30°C in winter, and there is basically no temperature difference with the preheated plasticizer, which eliminates the difference in the ingredients of the winter and summer seasons, and solves the problem of increasing the ratio of high-quality gloves in winter The problem of fluctuating or general decline.