CN201007796Y - Controls for Tobacco Cutting Machines - Google Patents

Abstract

The utility model discloses a control device for a tobacco cutting machine, which comprises a technical function CPU with an integrated motion control function. The technical function CPU is integrated with two field bus interfaces, one of which is connected to the first field bus The first field bus network connected with the interface and a second field bus network connected with the second field bus interface of the technical function CPU, on the first field bus network, each motor driver of the shredding machine is connected. The second field bus network is connected with one or more distributed I/O modules and human-machine interface HMI located at various parts of the shredding machine frame. It not only cancels the interface that affects the response time and generates interference existing in the prior art, but also reduces the production cost, and is easy to learn and master its use and operation method.

Description

Controls for Tobacco Cutting Machines

technical field

The utility model relates to a control device of a tobacco cutting machine, in particular to a device which uses a technical function CPU to control the tobacco cutting machine.

Background technique

There are basically two types of control devices for existing tobacco cutting machines:

A common industrial programmable logic controller (PLC) is used as the main controller. Because the central processing unit CPU of this type of PLC does not have the motion control function, the PLC only executes the logic control and process control of the shredding machine, and is used as a key part of the shredding machine. The synchronous motion control of the knife roller motor and the chain motor is performed by the processor embedded in the chain motor driver. This type of control method has an interface that affects the response time and generates interference between the main and sub-controllers;

The other control device cancels the PLC, and the motion control module with the functions of motion control, process control and logic control of the multi-axis servo drive controller is used as the main controller to perform the synchronous motion control of the cutter roller motor and the chain motor. And the process control and logic control of the shredding machine. This kind of control device has a high cost, and a special programming language is used to realize the motion control task. It will cost more learning time and training costs.

Contents of the invention

The purpose of the utility model is to provide a tobacco cutting machine control device that not only cancels the interface that affects the response time and generates interference, but also reduces the production cost and training cost.

The purpose of this utility model is achieved by the following technical solutions:

A control device for a tobacco cutting machine, comprising a technical function CPU with an integrated motion control function, the CPU has two integrated fieldbus interfaces, a first fieldbus interface connected to the first fieldbus interface of the CPU Network and a second field bus network connected with the second field bus interface of the CPU, on the first field bus network, each motor driver of the wire cutter is connected, on the second field bus network, connected with One or more distributed I/O modules and human-machine interface HMI located in each part of the shredding machine frame.

Wherein, the motor drivers include multi-axis servo drivers, single-axis servo drivers and variable frequency drivers.

Wherein, the multi-axis servo driver is respectively connected with the asynchronous servo motor of the knife roller, the synchronous servo motor of the row chain and the direct drive rotary motor of the knife feed.

Wherein, the single-axis servo drive is connected with the grinding wheel directly driving the linear motor.

Wherein, the variable frequency driver is connected with the reciprocating motor of the grinding wheel.

Wherein, the motor drivers are respectively connected to corresponding motors through power cables, and the motors with encoders are also connected to the motor drivers through communication cables.

Wherein, one or more sensor modules are further arranged between the encoders of the motors and the motor drivers.

The positive progressive effect of the present utility model is:

The control device of the tobacco cutting machine is composed of a low-cost technical function CPU integrated with a motion control function to simultaneously complete the synchronous control between the cutter roller motor and the chain motor, the feed motor, and the position control of the grinding wheel motor and the grinding wheel reciprocating motor. And the logic control and process control of the cutting machine. It not only optimizes the structure of the control system, improves the quality of control, ensures stable and accurate shredding quality, but also reduces production costs. At the same time, the PLC programming language that people are familiar with can be used to realize motion control, which is easy to learn and master its use, and reduces training costs.

Description of drawings

Fig. 1 is a schematic diagram of the connection relationship between the components of the preferred embodiment of the present invention.

Detailed ways

The preferred embodiments of the utility model are given below in conjunction with the accompanying drawings to describe the technical solution of the utility model in detail.

As shown in Figure 1, a control device for a tobacco cutting machine includes a technical function CPU2 with integrated motion control function, the model is CPU31xT-2DP; a power module 1 connected to it, the model is PS307 10A; two One input module 3, model SM321; two output modules 4, model SM322, in which input module 3 and output module 4 are connected to the technical function CPU2 through the bottom bus, and connected to switches, signal lamps, contactors, etc. through the front panel terminal board Component connection. Moreover, an integrated first fieldbus interface X1 and an integrated second fieldbus interface X2 are provided on the technical function CPU module, which are connected to the first fieldbus network N1 and the second fieldbus network N2 respectively.

The first field bus network N1 connected to the first field bus interface X1 integrated with the technical function CPU module is a PROFIBUS-DP (DRIVE) network, on which a multi-axis servo drive 5, a single-axis servo drive 7 and a variable frequency drive 6 are connected .

Among them, the multi-axis servo driver 5 (model S120) is connected to the network N1 through the control module 51 on it; the external three-phase 380V power supply is connected to its power module 52; its single motor module 53 is connected to the knife roller asynchronous servo drive by the power cable W2 Motor M1, the encoder of the motor is connected to the sensor module S1 by the communication cable 11, and then connected to the single motor module 53; its double motor module 54 is respectively connected to the upper chain synchronous servo motor M2 and the lower chain by the power cables W3 and W4. The chain synchronous servo motor M3, the upper and lower chain motors M2, and the encoders of M3 are respectively connected to the sensor modules S2 and S3 for signal conversion by communication cables 12 and 13, and then connected to the dual motor module 54; The single-motor module 55 is connected to the feeding motor M4 through the power cable W5. The encoder of the feeding motor is connected to the sensor module S4 through the communication cable 14, and then connected to the single-motor module 55.

The variable frequency driver 6 is MM440 in model number. The variable frequency driver is connected with the grinding wheel reciprocating motor M5 by a power cable W6. Single-axis servo driver 7, whose model is S600. The servo driver is connected to the grinding wheel direct drive linear motor M6 by a power cable W7, and the encoder of the motor is connected to the single-axis servo driver 7 by a communication cable 15 .

The second field bus network N2 connected with the second field bus interface X2 integrated with the technical function CPU module is an MPI/DP network. Distributed I/O modules 9 of models ET200S and ET200M and a human-machine interface (HMI) 8 are respectively connected to the network.

The modules and drivers mentioned above are all prior art, and will not be repeated here.

Claims (7)

1. A control device for a tobacco cutting machine, characterized by comprising a technical function CPU with an integrated motion control function, the technical function CPU has two integrated fieldbus interfaces, one of which is connected to the technical function CPU first The first field bus network connected with the field bus interface and a second field bus network connected with the second field bus interface of the technical function CPU, on the first field bus network, each motor driver of the shredding machine is connected , on the second field bus network, one or more distributed I/O modules and human-machine interface HMI located at various parts of the shredding machine frame are connected. 2. The control device of the tobacco cutting machine according to claim 1, characterized in that, each motor driver includes a multi-axis servo driver, a single-axis servo driver and a variable frequency driver. 3. The control device of the tobacco cutting machine according to claim 2, characterized in that the multi-axis servo driver is respectively connected with the knife roller asynchronous servo motor, the chain row synchronous servo motor and the knife feed direct drive rotary motor. 4. The control device of the tobacco cutting machine according to claim 2, characterized in that, the single-axis servo drive is connected with the grinding wheel direct drive linear motor. 5. The control device of the tobacco cutting machine according to claim 2, characterized in that the variable frequency drive is connected with the grinding wheel reciprocating motor. 6. The control device of the tobacco cutting machine according to any one of claims 1-4, characterized in that the motor drivers are respectively connected to the corresponding motors through power cables, and the motors with encoders are also connected to the corresponding motors through communication cables. Motor driver connection. 7. The control device of the tobacco cutting machine according to claim 6, characterized in that one or more sensor modules are arranged between the encoders of the motors and the motor drivers.

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