阅读说明：本技术 一种挤塑机模口恒温装置 (Constant temperature device for die orifice of plastic extruding machine ) 是由 宋涛 陈永军 庄兴华 路佳欢 曹香军 于 2020-06-23 设计创作，主要内容包括：本发明属于挤塑机装置技术领域,尤其涉及挤塑机模口恒温装置,包括中空的挤出机模具套,挤出机模具套的进油口通过进油管与恒温油浴装置的出油口连接,挤出机模具套的出油口通过出油管与存储过滤装置的进油口连接,存储过滤装置的出油口通过管道与冷却过滤装置的进油口连接,冷却过滤装置的出油口通过管道与恒温油浴装置的进油口连接,恒温油浴装置、存储过滤装置和所述冷却过滤装置的出油口处均设置有电磁阀。通过此装置,对挤出机模具套进行加温、冷却,使得挤出机模具套处于恒温状态；排除机身材料温度高于模口温度时,随加工的进行,模口温度不稳定而造成电缆表面达不到预期效果的作用。(The invention belongs to the technical field of plastic extruding machine devices, and particularly relates to a die orifice constant temperature device of a plastic extruding machine, which comprises a hollow extruder die sleeve, wherein an oil inlet of the extruder die sleeve is connected with an oil outlet of a constant temperature oil bath device through an oil inlet pipe, an oil outlet of the extruder die sleeve is connected with an oil inlet of a storage and filtration device through an oil outlet pipe, an oil outlet of the storage and filtration device is connected with an oil inlet of a cooling and filtration device through a pipeline, an oil outlet of the cooling and filtration device is connected with an oil inlet of the constant temperature oil bath device through a pipeline, and electromagnetic valves are arranged at oil outlets of the constant temperature oil bath device, the storage and. By the device, the die sleeve of the extruder is heated and cooled, so that the die sleeve of the extruder is in a constant temperature state; and the effect that the surface of the cable cannot achieve the expected effect due to unstable die orifice temperature along with the processing when the temperature of the machine body material is higher than the die orifice temperature is eliminated.)

1. The utility model provides a extruding machine die orifice constant temperature equipment which characterized in that: the extruder die sleeve is characterized by comprising a hollow extruder die sleeve, wherein a temperature sensor is arranged in the extruder die sleeve, an oil inlet of the extruder die sleeve is connected with an oil outlet of a constant-temperature oil bath device through an oil inlet pipe, an oil circuit switch and a pressure device are arranged on the oil inlet pipe, and a temperature sensor and a heating device are arranged in the constant-temperature oil bath device; the oil outlet of the extruder die sleeve is connected with the oil inlet of the storage and filtration device through an oil outlet pipe, the oil outlet of the storage and filtration device is connected with the oil inlet of the cooling and filtration device through a pipeline, the oil outlet of the cooling and filtration device is connected with the oil inlet of the constant-temperature oil bath device through a pipeline, and electromagnetic valves are arranged at the oil outlets of the constant-temperature oil bath device, the storage and filtration device and the cooling and filtration device.

2. The extruder die thermostatic apparatus of claim 1, characterized in that: and a liquid level sensor and a temperature sensor are arranged in the cooling and filtering device.

3. The extruder die thermostatic apparatus of claim 2, characterized in that: the oil inlet of the storage filtering device and the oil inlet of the cooling filtering device are both provided with filtering devices, and the filtering devices can be detached.

4. The extruder die thermostatic apparatus of claim 3, characterized in that: the control system is further arranged and comprises a controller and a control panel, and the controller is electrically connected with the control panel.

5. The extruder die thermostatic apparatus of claim 4, characterized in that: the temperature sensor, the liquid level sensor, the electromagnetic valve, the heating device, the oil circuit switch and the pressure device are all electrically connected with the controller.

6. The extruder die thermostatic apparatus of any one of claims 1-5, wherein: the whole constant temperature device is provided with a heat preservation device.

Technical Field

The invention belongs to the technical field of plastic extruding machines, and particularly relates to a constant temperature device for a die orifice of a plastic extruding machine.

Background

Disclosure of Invention

The invention aims to provide a die orifice constant temperature device of a plastic extruding machine, which is used for heating and cooling a die sleeve of the plastic extruding machine so that the die sleeve of the plastic extruding machine is in a constant temperature state; and the effect that the surface of the cable cannot achieve the expected effect due to unstable die orifice temperature along with the processing when the temperature of the machine body material is higher than the die orifice temperature is eliminated.

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

a constant temperature device for a die orifice of an extruding machine comprises a hollow die sleeve of the extruding machine, wherein a temperature sensor is arranged in the die sleeve of the extruding machine, an oil inlet of the die sleeve of the extruding machine is connected with an oil outlet of a constant temperature oil bath device through an oil inlet pipe, an oil circuit switch and a pressure device are arranged on the oil inlet pipe, and a temperature sensor and a heating device are arranged in the constant temperature oil bath device; the oil outlet of the extruder die sleeve is connected with the oil inlet of the storage and filtration device through an oil outlet pipe, the oil outlet of the storage and filtration device is connected with the oil inlet of the cooling and filtration device through a pipeline, the oil outlet of the cooling and filtration device is connected with the oil inlet of the constant-temperature oil bath device through a pipeline, and electromagnetic valves are arranged at the oil outlets of the constant-temperature oil bath device, the storage and filtration device and the cooling and filtration device.

Preferably, a liquid level sensor and a temperature sensor are arranged in the cooling and filtering device.

Preferably, the oil inlets of the storage filtering device and the cooling filtering device are respectively provided with a filtering device, and the filtering devices can be detached.

Preferably, a control system is further provided and comprises a controller and a control panel, and the controller and the control panel are electrically connected.

Preferably, the temperature sensor, the liquid level sensor, the electromagnetic valve, the heating device, the oil circuit switch and the pressure device are all electrically connected with the controller.

Preferably, the entire thermostatic device is provided with a heat preservation device. All devices, oil-containing pipes, etc. have insulation facilities, including insulation coatings or jackets, etc.

The working principle of the constant temperature device for the die orifice of the plastic extruding machine is as follows: setting a proper temperature of a constant temperature oil bath device, timely sending a temperature signal to a controller by a temperature sensor in the constant temperature oil bath device, controlling and opening a valve at an oil outlet of the constant temperature oil bath device and a pressure device and an oil circuit switch on an oil inlet pipe by the controller after the set temperature is reached, enabling oil in the constant temperature oil bath device to enter a hollow extruder die sleeve through the oil inlet pipe under the action of pressure, carrying out cooling/heating heat preservation on the extruder die sleeve, timely sending the temperature signal to the controller by the temperature sensor in the extruder die sleeve, pouring the oil out of the oil outlet pipe after the extruder die sleeve is filled with the oil, filtering and temporarily storing the oil in a storage and filtering device, timely sending liquid level information to the controller by a liquid level sensor in the cooling and filtering device, controlling the opening of a valve I by the controller when the oil in the cooling and filtering device is not contained, enabling the oil to enter the cooling and filtering device after being filtered by the storage and filtering device 1, carrying out, when the oil in the cooling and filtering device reaches a proper amount, the controller controls the valve I to be closed; the temperature sensor in the cooling and filtering device can send the temperature information to the controller in time, when the temperature in the cooling and filtering device reaches the set value of the constant temperature oil bath device, the controller controls the valve II to be opened, the oil enters the constant temperature oil bath device to be mixed, and the controller controls the heating device to properly adjust the temperature deviation.

Advantageous effects

The invention discloses a thermostatic device for a die orifice of a plastic extruding machine, which has the following advantages:

(1) oil is used for heating and cooling, the die sleeve of the extruder is made of metal, and the oil can not react with the metal and has the function of corrosion prevention;

(2) through the filtering device, the purity of oil is ensured, the service life of the constant-temperature oil bath device is prolonged, and the influence of long-time accumulation of particles, wall hanging and the like on the use of the device is avoided;

(3) all devices, oil-containing pipes and the like are provided with heat preservation facilities;

(4) the whole die sleeve is filled with oil, compared with the original heating plate, the contact area is enlarged by more than 2 times, and the heating and cooling effects are improved;

(5) by the device, the die sleeve of the extruder can be basically constant in temperature, and the surface processing temperature of plastic extrusion can be reached.

According to the constant temperature device for the die orifice of the extruding machine, the die sleeve of the extruding machine is heated and cooled through the device, so that the die sleeve of the extruding machine is in a constant temperature state; and the effect that the surface of the cable cannot achieve the expected effect due to unstable die orifice temperature along with the processing when the temperature of the machine body material is higher than the die orifice temperature is eliminated.

Drawings

FIG. 1 is a schematic view of the die thermostat of the extruder described in example 1 of this patent;

FIG. 2 is a schematic view of a prior art extruder die heating apparatus as described in the background of the invention;

in the figure, 1: storage filter device, 2: cooling and filtering device, 3: constant temperature oil bath device, 4: extruder die sleeve, 5: oil inlet pipe and 6: oil outlet pipe, 7: pressure device, 8: oil path switch, 9: valve I, 10: valves II, 11: a metal heating plate.

Detailed Description

Hereinafter, the present invention will be described in detail. Before the description is made, it should be understood that the terms used in the present specification and the appended claims should not be construed as limited to general and dictionary meanings, but interpreted based on the meanings and concepts corresponding to technical aspects of the present invention on the basis of the principle that the inventor is allowed to define terms appropriately for the best explanation. Accordingly, the description proposed herein is just a preferable example for the purpose of illustrations only, not intended to limit the scope of the invention, so it should be understood that other equivalents and modifications could be made thereto without departing from the spirit and scope of the invention.

The following examples are given by way of illustration of embodiments of the invention and are not to be construed as limiting the invention, and it will be understood by those skilled in the art that modifications may be made without departing from the spirit and scope of the invention.