阅读说明：本技术 一种搅拌机用双向电机防卡死的控制方法 (Anti-locking control method for bidirectional motor for stirrer ) 是由 朱洪滨 于 2020-07-20 设计创作，主要内容包括：本发明公开了一种搅拌机用双向电机防卡死的控制方法,通过单片机控制继电器a和继电器b的吸合时间,所述继电器a和继电器b均和电机电性连接,且所述继电器a用于控制电机正转,所述继电器b用于控制电机反转。本发明中,通过继电器a和继电器b控制电机在带动搅拌机运行的过程中进行正反转切换,防止搅拌机遇到异物卡住搅拌杆时,避免强行长时间卡住电机的运行状态,防止使电机或电机变速齿轮的损坏,以实现防止搅拌机由于异物卡住搅拌杆导致的损坏,此外,该方法简单方便,且对组成设备的智能化要求不高,具有很好的实用性。(The invention discloses a control method for preventing a bidirectional motor for a stirrer from being blocked, which is characterized in that a single chip microcomputer is used for controlling the suction time of a relay a and a relay b, the relay a and the relay b are both electrically connected with the motor, the relay a is used for controlling the motor to rotate forwards, and the relay b is used for controlling the motor to rotate backwards. In the invention, the relay a and the relay b are used for controlling the motor to carry out forward and reverse rotation switching in the process of driving the stirring machine to operate, so that when the stirring machine meets a foreign matter to block the stirring rod, the phenomenon that the motor is forcibly blocked for a long time is avoided, and the motor or the speed change gear of the motor is prevented from being damaged, so that the damage of the stirring machine caused by the blocking of the stirring rod by the foreign matter is avoided.)

1. A control method for preventing a bidirectional motor for a stirrer from being stuck is characterized by comprising the following steps:

the single chip microcomputer (1) is used for controlling the attraction time of the relay a (2) and the relay b (3), the relay a (2) and the relay b (3) are both electrically connected with the motor (4), the relay a (2) is used for controlling the motor (4) to rotate forwards, and the relay b (3) is used for controlling the motor (4) to rotate backwards;

when the motor (4) rotates forwards, the operation is circulated according to the sequence of closing the relay a (2), opening the relay b (3) and closing the relay a (2);

when the motor (4) rotates reversely, the operation is circulated according to the sequence of closing the relay b (3), opening the relay b (3), closing the relay a (2), opening the relay a (2) and closing the relay b (3).

2. The anti-blocking control method for the bidirectional motor of the mixer as claimed in claim 1, wherein the method for the forward rotation of the motor (4) comprises the following steps:

s1, opening the relay a (2) after closing for 3 seconds;

s2, the relay b (3) is closed for 1 second and then is opened;

s3, repeating the steps of S1 and S2.

3. The anti-seize control method of the bi-directional motor for the mixer according to claim 1, characterized in that the method of the motor (4) running in reverse rotation comprises the following steps:

S1, opening the relay b (3) after closing for 3 seconds;

s2, the relay a (2) is closed for 1 second and then is opened;

s3, repeating the steps of S1 and S2.

Technical Field

The invention relates to the related field of mixers, in particular to a control method for preventing a bidirectional motor for a mixer from being stuck.

Background

A mixer is a machine in which a shaft with blades rotates in a cylinder or tank to mix and blend a plurality of raw materials into a mixture or a suitable consistency. The mixers are classified into forced mixers, single horizontal shaft mixers, double horizontal shaft mixers, and the like. The stirrer is widely applied to high-efficiency equipment for stirring, dispersing and dissolving coating and solids, and consists of a hydraulic system, a main transmission system, a stirring system, a guide mechanism and an electric cabinet, and each part of the equipment is compact and reasonable in structure.

The agitator provides kinetic energy through the motor mainly, stirs the operation, but the agitator meets the foreign matter and blocks when the puddler, blocks the change gear that the puddler can lead to motor or motor and damage for a long time by force when the in-process of stirring the operation is being carried out to the agitator to influence the normal use of agitator.

Therefore, the anti-blocking control method of the bidirectional motor for the stirrer is provided.

Disclosure of Invention

The invention aims to provide a control method for preventing a bidirectional motor for a stirrer from being blocked so as to solve the problems in the background technology.

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

a control method for preventing a bidirectional motor for a stirrer from being stuck comprises the following steps:

the single chip microcomputer is used for controlling the suction time of the relay a and the relay b, the relay a and the relay b are both electrically connected with the motor, the relay a is used for controlling the motor to rotate forwards, and the relay b is used for controlling the motor to rotate backwards;

when the motor rotates forwards, the operation is circulated all the time according to the sequence of the closing of the relay a, the opening of the relay b and the closing of the relay a;

when the motor runs reversely, the operation is circulated all the time according to the sequence of the closing of the relay b, the opening of the relay b, the closing of the relay a, the opening of the relay a and the closing of the relay b.

Preferably, the method for the forward rotation of the motor comprises the following steps:

s1, opening the relay a after closing for 3 seconds;

s2, the relay b is opened after being closed for 1 second;

s3, repeating the steps of S1 and S2.

Preferably, the method for the reverse rotation of the motor comprises the following steps:

s1, opening the relay b after closing for 3 seconds;

s2, opening the relay a after closing for 1 second;

s3, repeating the steps of S1 and S2.

Compared with the prior art, the invention has the beneficial effects that:

in the invention, the relay a and the relay b are used for controlling the motor to carry out forward and reverse rotation switching in the process of driving the stirring machine to operate, so that when the stirring machine meets a foreign matter to block the stirring rod, the phenomenon that the motor is forcibly blocked for a long time is avoided, and the motor or the speed change gear of the motor is prevented from being damaged, so that the damage of the stirring machine caused by the blocking of the stirring rod by the foreign matter is avoided.

Drawings

Fig. 1 is a schematic diagram of a control method for preventing a bidirectional motor for a blender from being stuck according to the present invention.

In the figure: 1. a single chip microcomputer; 2. a relay a; 3. a relay b; 4. an electric motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1, the invention also provides a control method for preventing the bidirectional motor for the mixer from being stuck, which comprises the following steps:

the single chip microcomputer 1 is used for controlling the attraction time of the relay a2 and the relay b3, the relay a2 and the relay b3 are electrically connected with the motor 4, the relay a2 is used for controlling the motor 4 to rotate forwards, and the relay b3 is used for controlling the motor 4 to rotate backwards;

when the motor 4 rotates forwards, the operation is circulated according to the sequence of closing the relay a2, opening the relay a2, opening the relay b3, opening the relay b3 and closing the relay a 2;

when the motor 4 runs in the reverse rotation direction, the operation is cycled in the sequence of the closing of the relay b3, the opening of the relay b3, the closing of the relay a2, the opening of the relay a2 and the closing of the relay b 3.

In this embodiment, further, the method for forward rotation of the motor 4 includes the following steps:

s1 and a relay a2 are closed for 3 seconds and then are opened;

s2 and a relay b3 are closed for 1 second and then are opened;

s3, repeating the steps of S1 and S2.

In this embodiment, the method for rotating the motor 4 in reverse further includes the following steps:

s1 and a relay b3 are closed for 3 seconds and then are opened;

s2 and a relay a2 are closed for 1 second and then are opened;

s3, repeating the steps of S1 and S2.

In the present invention, further, the electrode to which the terminal of the motor 4 not wired to the relay a2 and the relay b3 is connected is opposite to the electrode to which the incoming terminals of the relay a2 and the relay b3 are connected.

In the present invention, relay a2 is connected to the forward rotation end of motor 4, and relay b3 is connected to the reverse rotation end of motor 4.

In the invention, the relay a2 and the relay b3 are used for controlling the motor 4 to switch forward and reverse rotation in the process of driving the stirrer to operate, so that when the stirrer meets a foreign matter to clamp the stirring rod, the phenomenon that the motor 4 is forcibly clamped for a long time is avoided, and the motor 4 or a speed change gear of the motor is prevented from being damaged, so that the stirrer is prevented from being damaged due to the fact that the stirring rod is clamped by the foreign matter.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.