CN202888803U

CN202888803U - Cooling mixer

Info

Publication number: CN202888803U
Application number: CN 201220521557
Authority: CN
Inventors: 赵治国
Original assignee: SUZHOU HONGQILIN PLASTIC Co Ltd
Current assignee: SUZHOU HONGQILIN PLASTIC Co Ltd
Priority date: 2012-10-12
Filing date: 2012-10-12
Publication date: 2013-04-17
Anticipated expiration: 2022-10-12

Abstract

The present utility model discloses a cooling mixer. The mixer comprises a motor and a motor protection device, a current detection module, an overload protection module and an open-phase protection module are arranged inside the motor protection device, the overload protection module is provided with a time-delay unit; the current detection module is used for detecting practical current of a motor and sending a detection result to the overload protection module and the open-phase protection module; an overload setting unit is used for setting overload current value of the motor; a time-delay setting unit is used for setting safe overload continuing time of the motor; the overload protection module is used for comparing whether the practical current value of the motor exceeds the overload current value or not and whether the overload continuing time exceeds the safe overload continuing time or not; and the open-phase protection module is used for judging whether the practical current of the motor is open-phase or not. The cooling mixer can be used for detecting the working status of the motor, and avoiding damages caused by long-time overload operation of the motor, and prilling production of whole PVC cable materials will not be influenced.

Description

A kind of cooling mixing machine

Technical field

The utility model relates to PVC CABLE MATERIALS granulating production equipment, relates in particular to a kind of cooling mixing machine with overload protection function.

Background technology

PVC CABLE MATERIALS granulating production equipment comprises be used to the cooling mixing machine that blends raw material, for the feeding machine that adds raw material to extruder, is used for the extruder of Raw material processing slivering shape, for the strip material being cut into granular air-cooled die-surface hot cutting head, being used for equipment such as the isolated cyclone separator of granular product and air-cooled lengthening vibrating screens.

Cooling mixing machine generally is made of mixing chamber, two relatively rotating rotors, motor and drive apparatus, motor turns round relatively by two rotors of drive apparatus driving during work, to clamp from the material of charge door and bring extruding and the shearing that roll gap is subject to rotor into, pass and run into lower top behind the roll gap and fasten cusped edge and be divided into two parts, return respectively the roll gap top along slit between front and back locular wall and the rotor; In the moving week, material is sheared and rubbing action everywhere in the subflow that rotates, and temperature sharply rises, and reduced viscosity makes the fully contact of surface between the material, realizes mixing purpose; This is wherein larger to the power demand of motor.

At present; the cooling mixing machine that uses during the granulation of PVC CABLE MATERIALS is produced; its motor is the protection equipment of not being correlated with; owing to reasons such as the material component that drops into to cooling mixing machine are too much, the viscosity of material is larger; often cause the overload of motor; when the motor overload time length will be burnt the interruption that causes whole PVC CABLE MATERIALS granulation to produce.

The utility model content

Goal of the invention: in order to overcome the deficiencies in the prior art; the utility model provides a kind of cooling mixing machine with overload protection function; the course of work to its motor is monitored, and avoids motor overload to burn, and affects the carrying out that whole PVC CABLE MATERIALS granulation is produced.

Technical scheme: for solving the problems of the technologies described above, the technical solution adopted in the utility model is:

A kind of cooling mixing machine comprises motor and electric motor protective device, is provided with current detection module, overload protection module and open-phase protection module in the described electric motor protective device, is provided with delay unit in the described overload protection module.

Described current detection module: the actual current to motor detects, and sends testing result to overload protection module and open-phase protection module.

Described overload setup unit: the overload current value that is used for setting motor.

Described delay adjustments unit: the lasting duration of safety overload that is used for setting motor.

Described overload protection module: whether the actual current value of motor is surpassed overload current value and duration of overload surpass the safety overload and continue duration and compare, and whether quit work according to comparative result control motor.

Whether described open-phase protection module: whether phase shortage is judged to the actual current of motor, and quit work according to judged result control motor.

In the said structure, surpass the safety overload and continue duration if the actual current value of motor surpasses overload current value and duration of overload, control then that motor is no to quit work; If the actual current phase shortage of motor controls then that motor is no to quit work.

Preferably, also be provided with the machine operation indicator light on the described electric motor protective device, described machine operation indicator light comprises normal run indicator, current overload indicator light and phase shortage indicator light.

Beneficial effect: the cooling mixing machine that the utility model provides, can the working condition of motor be detected, avoid the long overlond running of motor, cause damage, affect whole PVC CABLE MATERIALS granulation and produce.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is further described.

Be illustrated in figure 1 as a kind of cooling mixing machine, comprise motor and electric motor protective device, be provided with current detection module, overload protection module and open-phase protection module in the described electric motor protective device, be provided with delay unit in the described overload protection module;

Described current detection module: the actual current to motor detects, and sends testing result to overload protection module and open-phase protection module;

Described overload setup unit: the overload current value that is used for setting motor;

Described delay adjustments unit: the lasting duration of safety overload that is used for setting motor;

Described overload protection module: whether the actual current value of motor is surpassed overload current value and duration of overload surpass the safety overload and continue duration and compare, and whether quit work according to comparative result control motor;

The above only is preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims

1. a cooling mixing machine comprises motor, it is characterized in that: also comprise electric motor protective device, be provided with current detection module, overload protection module and open-phase protection module in the described electric motor protective device, be provided with delay unit in the described overload protection module,

Described current detection module detects the actual current of motor, and sends testing result to overload protection module and open-phase protection module,

Described overload setup unit, for the overload current value of setting motor,

Described delay adjustments unit is used for setting transshipping safely of motor and continues duration,

Whether whether described overload protection module surpass overload current value and duration of overload to the actual current value of motor and surpass the safety overload and continue duration and compare, and quit work according to comparative result control motor,

Described open-phase protection module, whether whether phase shortage is judged to the actual current of motor, and quit work according to judged result control motor.

2. cooling mixing machine according to claim 1, it is characterized in that: also be provided with the machine operation indicator light on the described electric motor protective device, described machine operation indicator light comprises normal run indicator, current overload indicator light and phase shortage indicator light.