Manufacturing method of hand mold temperature automatic control device for PVC glove production line

- Oct 29, 2020-

【Patent Abstract】

The utility model relates to an automatic temperature control device for a hand mold of a PVC glove production line. The technical solutions provided by it include a PVC glove production line. The PVC glove production line is equipped with an oven, and the inside of the oven is laid with a heat-conducting oil fin tube. The mold release section of the PVC glove production line is equipped with a temperature sensor. The temperature sensor is connected to a control device. The valve controls the heat transfer oil pipeline, the control device also controls the switch connected to the cooling device, and the cooling device is set corresponding to the oven. The utility model adopts the temperature detection part to monitor the hand mold temperature in real time. Through the automatic adjustment of the control part, real-time temperature control is realized, which ensures that the mold temperature is stable within the technological requirement range, and avoids the randomness and hysteresis of manual adjustment. It also ensures the plasticization and molding effect of PVC gloves and reduces energy consumption.


 【Background technique】

In the production process of PVC gloves, heat needs to be consumed. On the one hand, the PVC paste impregnated on the surface of the hand mold can be plasticized and molded under the appropriate plasticizing temperature; on the other hand, the hand mold is suitable for each process section. The process temperature.

Traditional PVC production lines need to use burning coal to heat the heat transfer oil inside the oven, mainly PVC plasticizing ovens and I3U ovens provide heat for the entire production line.

At present, according to the structure of the production line and the characteristics of the raw materials, the appropriate baking temperature range is determined, and the hand mold temperature is also a key control point after the PU coating agent is impregnated for hand molding. If the temperature of the hand mold is too high during demolding, the gloves will not easily fall off because of stickiness, which will increase the rejection rate and affect the quality of the product; if the temperature of the hand mold is too low during demolding, it will cause the mold temperature during the subsequent immersion process Too low, the fluidity of the paste is poor, the thickness of the gloves is uneven, and a higher baking temperature is required to ensure complete plasticization. In the northern region, the climate temperature difference between summer and winter is large. Whether the mold temperature control for the production of PVC gloves is timely and accurate directly affects the product quality.

disposable pvc glove making machine

When the mold temperature is different from the temperature required by the process, it is generally necessary to manually adjust the PVC oven temperature or the size of the oven temperature oil inlet valve, and control the flow of heat transfer oil to adjust the mold temperature. However, affected by the properties of the raw materials, the formula and the required plasticizing conditions, the temperature adjustment range of the two ovens is limited, and there is no good cooling device. In addition, manual adjustment is often random, and it is easy to adjust the temperature, the temperature is not reached, and the adjustment time is too long, which affects normal production.

Utility model content

Based on the above shortcomings in the prior art, the technical problem to be solved by the present invention is to provide an automatic temperature control device for hand molds, which can adjust the temperature in a timely and accurate manner, which can reduce energy consumption and save costs.

The automatic temperature control device for the hand mold of the PVC glove production line provided by the utility model includes a PVC glove production line. The PVC glove production line is equipped with an oven, and a layer of heat-conducting oil fin tube is laid inside the oven, in addition to keeping the overall temperature in the PVC oven balanced and stable In addition, the direct radiant heat of the heat-conducting oil fin tube can be used to improve the plasticizing effect. The demolding section of the PVC glove production line is equipped with a temperature sensor, which is connected to the control device. The control device controls the heat transfer oil pipeline through a solenoid valve. The control device also controls the switch connected to the cooling device. The cooling device is set corresponding to the oven.

The temperature sensor is an infrared sensor, and the control device is a PLC controller. Since the temperature of the hand mold at the demoulding part of the PVC glove production line is at a medium temperature and cannot be contacted for testing, compared with other sensors, the infrared sensor has high sensing accuracy and long use time.

The cooling device is an air conditioner, which actively reduces the temperature through the cooling device, speeds up the cooling process, and adjusts the temperature in time.

The utility model has the beneficial effects that the temperature detection part is used to monitor the hand mold temperature in real time, and the real-time temperature control is realized through the automatic adjustment of the control part, which ensures that the mold temperature is stable within the range of process requirements and avoids manual adjustment. The randomness and hysteresis of PVC gloves ensure the plasticizing effect of PVC gloves and reduce energy consumption.


 【Rights request】

 1. An automatic temperature control device for the hand mold of a PVC glove production line, including a PVC glove production line. The PVC glove production line is equipped with an oven. A layer of heat-conducting oil fin tube is laid inside the oven. The feature is that the mold release section of the PVC glove production line is set There is a temperature sensor, the temperature sensor is connected to the control device, the control device controls the heat transfer oil pipeline through the solenoid valve, the control device also controls the switch connected to the cooling device, the cooling device is set corresponding to the oven.

 2. The automatic temperature control device for the hand mold of the PVC glove production line according to claim 1, wherein the temperature sensor is an infrared sensor, and the control device is a PLC controller.

 3. The automatic temperature control device for the hand mold of the PVC glove production line according to claim 1, wherein the cooling device is an air conditioner.