Method for manufacturing ultrasonic vibration stirring device for producing PVC glove ingredients

- Sep 03, 2019-

[technical field]

The utility model relates to an ultrasonic vibration stirring device for producing PVC glove ingredients, which belongs to the field of PVC glove production.

Background technology

In PVC gloves belong to emerging industries, originated in the United States, gradually developed in Japan, then Taiwan into China, with the increase of Taiwan's manufacturing cost, its production gradually turned to the Chinese mainland and got rapid development, at present China has become the world's PVC gloves production base, is the world's leading supply PVC gloves.Most domestic PVC glove production devices are 80?Built in the 1990s, most of them mainly produce industrial grade PVC gloves. Due to the technical difficulties required for the production of high-grade medical grade PVC gloves, 90% of the PVC glove production lines cannot produce medical grade gloves stably.

PVC paste used for medical grade PVC gloves has special performance, PVC particles are small, viscosity is large, difficult to disperse, under the existing conditions of stirring equipment, high-speed dispersion process is easy to heat up, resulting in paste pre-gel, which is non-recoverable damage, and requires a long stirring time, low dispersion efficiency.Affected by technology, equipment and other conditions, the mixing process of medical-grade PVC gloves has not been improved for a long time.Mixing device is the main equipment in the batching process. Its uneven dispersing performance directly affects the quality of materials used for medical-grade PVC gloves, and also leads to uneven production level of medical-grade PVC gloves.

As the production technology of this industry is not fixed, the process equipment is not standardized, and there are no relevant universities and scientific research institutions engaged in the relevant technical research of this industry, which hinders the technical exchange of the industry and restricts the improvement of the technical level of the industry.

[contents of utility model] :

In order to solve the deficiencies in the above technical problems, the utility model aims to provide an ultrasonic vibration stirring device for the production of PVC glove ingredients which can overcome the above defects and improve the production efficiency.

The ultrasonic vibration stirring device for producing PVC glove ingredients provided by the utility model includes a stirring bucket and a stirring motor. The end of the stirring motor is connected with the stirring shaft, and the end of the stirring shaft is installed with a stirring impeller.Three sets of ultrasonic vibration bars are arranged in the stirring barrel at 120°, and the ultrasonic vibration bars are connected to the ultrasonic generator of the control system.

An elastic coupling is arranged between the stirring motor and the stirring shaft.The ultrasonic vibration rod comprises a transducer, an amplitude transformer and a multi-section tool head connected successively.The lower side of the mixing drum is coated with a circulating water jacket, which is connected to the inlet valve and outlet valve for inlet and outlet water respectively.

A temperature detector is arranged in the mixing barrel, and the temperature detector is connected to the control system.The agitator impeller is a toothed dispersive disk arranged into two layers.The inlet valve and outlet valve are connected with the control system, and the control system controls the inlet valve and outlet valve through the temperature detected by the temperature detector.

When batching, the batching control system controls the liquid raw materials to be put into the mixing bucket in accordance with the set ratio. After the feeding of liquid raw materials, the stirring motor is turned on and the PVC paste resin powder is started.The optimal speed of the stirring motor is 800-1000rpm to achieve the pre-dispersion of paste in the powder feeding process.The temperature inside the mixing drum is monitored by the temperature detector in real time and the detected temperature data is transferred to the mixing control system.This process usually does not cause excessive stirring temperature problems.When the powder feeding is finished, the ultrasonic vibration dispersion system is started and the speed of the stirring motor remains unchanged.The circulating water jacket is used as a cooling measure when the mixing temperature of the paste is too high to ensure that the paste will not be damaged due to too high temperature.In addition, the batching control system can pre-set the running time of stirring motor and ultrasonic generator, and automatically stop the batching device when the mixing and dispersing reach the set time.

There is an elastic coupling between the agitator motor and the agitator shaft to ensure the joint rotation of the agitator motor and the agitator shaft and realize the smooth operation of the agitator motor.

The stirring impeller is a toothed dispersing disc with a diameter of 300mm, and it is equipped with two layers. The distance between the two layers of impeller is set at 500mm, and the lower layer of the impeller is set at 420mm from the bottom of the mixing bucket. A good space setting can enhance the dispersing effect of raw materials in the stirring process.

Ultrasonic vibration bar choose steel material, high strength, long service life.Ultrasonic generator and transducer can control ultrasonic frequency and amplitude respectively.

The beneficial effects of the utility model are:

The utility model of ultrasonic vibration in dispersing, mixing double dispersion system, dispersion efficiency greatly improved, ingredients mixing process from 3 h to lh, cycle is significantly shorter, and scattered effect is better, glutinous rice dough decrease paste, paste particles from 40 mu eta ι to about 30 mu eta ι below.

The stirring speed is reduced, from 1000-1400 MPR MPR down to 800-1000, mixing paste temperature problem in the process of reduce greatly, circulating water jacket from equipment necessary to safeguard measures, and no longer need to lower the temperature in the agitator rotational speed to reduce paste, which reduces the dispersion effect, resulting in different batches produced ingredients condition difference between paste.

It is verified that the dispersing effect is significantly improved after the use of the utility model, and the difference in particle, viscosity and filtration conditions between different batches of pastes is reduced. The boutique ratio of medical-grade PVC gloves production line is stable at over 90%, which reduces the problem of boutique ratio rising and falling suddenly.

[sovereignty]

1. The invention provides an ultrasonic vibration stirring device for producing PVC glove ingredients, including a stirring barrel. The invention also includes a stirring motor, the end of which is connected with a stirring shaft, and the end of which is installed with a stirring impeller;Three sets of ultrasonic vibration bars are arranged in the stirring barrel at 120°, and the ultrasonic vibration bars are connected to the ultrasonic generator of the control system.

2. According to the ultrasonic vibration stirring device for producing PVC glove batching mentioned in claim 1, its feature is that there is an elastic coupling between the stirring motor and the stirring shaft.

3. According to the ultrasonic vibration stirring device for producing PVC glove ingredients mentioned in claim 1, the ultrasonic vibration bar includes successively connected transducer, amplitude transformer and multi-section tool head.

4. According to the ultrasonic vibration stirring device for producing PVC glove ingredients mentioned in claim 1, the lower side of the stirring bucket is coated with circulating water jacket, which is connected with inlet valve and outlet valve for inlet and outlet water respectively.

5. According to the ultrasonic vibration stirring device for the production of PVC glove ingredients mentioned in claim 1, its feature is that the temperature detector is set in the stirring barrel, and the temperature detector is connected to the control system.

6. According to the ultrasonic vibration stirring device for producing PVC glove ingredients mentioned in claim 1, the stirring impeller is a toothed dispersing disk divided into two layers.

7. According to the ultrasonic vibration stirring device for the production of PVC glove ingredients mentioned in claim 4, its feature is that the said inlet valve and outlet valve are connected with the control system, and the control system controls the inlet valve and outlet valve through the temperature detected by the temperature detector.

[patent abstract] the utility model relates to an ultrasonic vibration stirring device for the production of PVC glove batching, and an ultrasonic vibration stirring device for the production of PVC glove batching, including a stirring barrel.Three sets of ultrasonic vibration bars are arranged in the stirring barrel at 120°, and the ultrasonic vibration bars are connected to the ultrasonic generator of the control system.The dispersing effect of the utility model is significantly improved, and the difference in particle, viscosity and filtration conditions between different batches of pastes is reduced, and the boutique ratio of medical-grade PVC gloves production line is stable at over 90%, which reduces the problem of boutique ratio rising and falling suddenly.

医用手套6