Tension adjusting device applied to bunching machine

Abstract

The utility model provides a bunching machine tension adjusting device, the device comprises a power supply module, a PLC controller, a conversion module and a tension device, the PLC controller is connected with the tension device through the conversion module, and the power supply module is connected with the conversion module; the conversion module comprises an isolating circuit for isolating input and output signals, and an RS485 serial port, a microprocessor, a D / A converter and an output circuit which are connected in sequence; the PLC transmits data to the conversion module through an RS485 serial port, the data is converted into corresponding digital quantity through a microprocessor of the conversion module, the digital quantity is subjected to digital-to-analog conversion through the D / A converter to obtain direct-current voltage, and the direct-current voltage is transmitted to the tension device through the output module. The tension adjusting device of the bunching machine can achieve real-time adjustment of the tension value in the bunching process of the bunching machine, can ensure the stability of signal transmission, improves the qualified rate of products, and is low in cost and high in benefit.

Description

Technical Field

[0001] The utility model relates to the technical field of cable wire bundling machines, in particular to a tension adjustment device applied to wire bundling machines. Background Art

[0002] The wire bundling process of the wire bundling machine is to twist multiple single wires in a predetermined manner to form a conductor bundle of the required structure. During the twisting, a certain external tension needs to be applied to the wires. Currently, many wire bundling machines use a wireless controller + tension sensor to control the tension during the bundling process. This tension control method has the following shortcomings: First, it is affected by the unstable signal factors in wireless transmission, which can easily cause unqualified products; second, the wireless controller equipment itself is relatively expensive and is easily damaged in the jitter environment of the equipment site, and the cost of use and maintenance is high. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a tension adjustment device for a wire bundling machine to realize real-time adjustment of the tension value during the wire bundling process of the wire bundling machine, and the utility model device can ensure the stability of signal transmission and improve the product qualification rate. At the same time, the utility model has low cost and high benefit.

[0004] The utility model is implemented as follows: a tension adjustment device for a wire harness machine, the device comprising a power module, a PLC controller, a conversion module and a tension device, the PLC controller is connected to the tension device through the conversion module, and the power module is connected to the conversion module;

[0005] The conversion module includes an isolation circuit for isolating input and output signals, and an RS485 serial port, a microprocessor, a D / A converter and an output circuit connected in sequence;

[0006] The PLC controller transmits data to the conversion module through the RS485 serial port, which is converted into corresponding digital quantities by the microprocessor of the conversion module. The digital quantities are converted into DC voltage values ​​after digital-to-analog conversion by the D / A converter and transmitted to the tension device through the output module.

[0007] Furthermore, the PLC controller uses MODBUS to communicate with the conversion module.

[0008] Furthermore, the conversion module is connected to the tension device via a slip ring.

[0009] Furthermore, the PLC controller is connected to a touch screen and receives input tension value signals through the touch screen.

[0010] Furthermore, the conversion module also includes a power supply circuit and a filter circuit.

[0011] Furthermore, the voltage output by the conversion module is 0-10V.

[0012] Furthermore, the PLC controller model is smart200 ST40.

[0013] Furthermore, the microprocessor model is STM32F103C8T6.

[0014] The utility model has the following advantages: the PLC is connected to the conversion module for data transmission, and the conversion module is used to convert the 0%-100% of the input tension value into a 0-10V voltage value output, and the tension is controlled by the tension device to achieve real-time adjustment of the tension in the wiring process. The device does not need to use the existing wireless controller, saving equipment costs, and can achieve stable data transmission, reduce the impact of the external environment, and improve product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0016] Figure 1 The utility model is a schematic diagram of the overall structure of a tension adjustment device for a wire bundling machine.

[0017] Figure 2 The utility model is a schematic diagram of the structure of a conversion module in a tension adjustment device of a wire harness machine.

[0018] In the figure: 1. power module, 2. PLC controller, 3. conversion module, 31. isolation circuit, 32. RS485 serial port, 33. microprocessor, 34. D / A converter, 35. output circuit, 36. power circuit, 37. filter circuit, 4. tension device, 5. touch screen. DETAILED DESCRIPTION

[0019] See also Figure 1 and Figure 2 As shown, the utility model provides a tension adjustment device for a wire harness machine, the device comprising a power module 1, a PLC controller 2, a conversion module 3 and a tension device 4, the PLC controller 2 is connected to the tension device 4 through the conversion module 3, the power module 1 is connected to the conversion module 3, and the conversion module is powered by a 24VDC power supply;

[0020] The conversion module 3 includes an isolation circuit 31 for isolating input and output signals, and an RS485 serial port 32, a microprocessor 33, a D / A converter 34 and an output circuit 35 connected in sequence;

[0021] The PLC controller 2 transmits the tension data to the conversion module 3 through the RS485 serial port 32, which is converted into a corresponding digital quantity by the microprocessor 33 of the conversion module 3. The digital quantity is converted into a DC voltage value after digital-to-analog conversion by the D / A converter 34, and the DC voltage value is transmitted to the tension device 4 through the output module 35. Here, the microprocessor converts the input value into a digital quantity corresponding to the proportional voltage according to a preset proportional value.

[0022] In a preferred embodiment, the PLC controller uses MODBUS to communicate with the conversion module. The Modbus protocol has high reliability, supports multiple physical layer interfaces, and is applicable to various types of equipment. Using MODBUS for communication replaces the original wireless transmission method of the wireless controller, thereby improving the stability of data transmission.

[0023] Preferably, the conversion module is connected to the tension device via a slip ring.

[0024] The connection between the PLC controller and the conversion module, and between the conversion module and the tension device of the utility model are all wired connections, which effectively avoids the instability of wireless connection.

[0025] In a preferred embodiment, the PLC controller 2 is connected to a touch screen 5, and receives the input tension value signal through the touch screen. According to the specific setting of the tension device, the tension value of 0-100% set on the screen corresponds to the voltage value output by the output circuit of 0-10V.

[0026] In a preferred embodiment, the conversion module 3 further includes a power circuit 36 ​​and a filter circuit 37, so that when the power 24 is input, it is filtered before being used later.

[0027] Wherein, the PLC controller model may be smart200 ST40.

[0028] Wherein, the microprocessor model may be STM32F103C8T6.

[0029] The working principle of the utility model is as follows:

[0030] During the wire bundling process, the user inputs a tension value between 0-100% on the screen through the touch screen. After the PLC receives the input value from the touch screen, it transmits it to the conversion module. The microprocessor of the conversion module converts the tension value into a voltage value and transmits it to the D / A converter. The D / A converter performs digital-to-analog conversion and then transmits it to the output module. The output module transmits the specific voltage value to the tension device, and the tension device adjusts the tension output in real time according to the input voltage value.

[0031] The utility model of the wire bundling machine tension adjustment device can realize the real-time adjustment of the tension value of the wire bundling machine during the wire bundling process without the need for a wireless controller, thereby reducing the equipment cost. At the same time, the utility model device can improve the data transmission stability, improve the product qualification rate, and improve the overall benefit.

[0032] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A tension adjustment device for a wire bundling machine, characterized in that: The device comprises a power module, a PLC controller, a conversion module and a tension device, wherein the PLC controller is connected to the tension device via the conversion module, and the power module is connected to the conversion module; The conversion module comprises an isolation circuit for isolating input and output signals, and an RS485 serial port, a microprocessor, a D / A converter and an output circuit which are connected in sequence.

2. The tension adjustment device for a wire bundling machine according to claim 1, characterized in that: The PLC controller communicates with the conversion module using MODBUS.

3. The tension adjustment device for a wire bundling machine according to claim 1, characterized in that: The conversion module is connected to the tension device via a slip ring.

4. The tension adjustment device for a wire bundling machine according to claim 1, characterized in that: The PLC controller is connected to a touch screen and receives input tension value signals through the touch screen.

5. The tension adjustment device for a wire bundling machine according to claim 1, characterized in that: The conversion module also includes a power supply circuit and a filter circuit.

6. The tension adjustment device for a wire bundling machine according to claim 1, characterized in that: The voltage output by the conversion module is 0-10V.

7. The tension adjustment device for a wire bundling machine according to claim 1, characterized in that: The PLC controller model is smart200 ST40.

8. The tension adjustment device for a wire bundling machine according to claim 1, characterized in that: The microprocessor model is STM32F103C8T6.

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