CN205027688U - Online varnished wire detecting device - Google Patents

Abstract

The utility model discloses an online varnished wire detecting device, which comprises a detection support, detect the support along the level to being provided with the survey guide pulley of listing and indexing, each detects guide pulley and corresponds the enameled wire that detects a process, the detection guide pulley is the electric conductor, it has measuring current to detect the guide pulley input, it has the detected signal to detect guide pulley output. The utility model discloses utilize the electric current and the voltage characteristic that coat with lacquer tumour, pinhole, bare wire production, recognise the various mass defects of enameled wire in enameled wire production and transmission course, detection efficiency is high, can avoid the defect product stream to market.

Description

An enameled wire online detection device

technical field

The utility model relates to enameled wire detection equipment, in particular to an on-line detection device for detecting enameled wire lacquer warts, pinholes, bare wires and other defects and broken wires.

Background technique

At present, enameled wire cannot be detected online, so pinhole defects in the paint film or bare wire defects cannot be detected in time during the production of high-speed ultra-fine enameled wires, which leads to outflow of product defects and easily leads to customer product burn-in defects.

Utility model content

The technical problem to be solved by the utility model is to provide an enameled wire online detection device, which can detect quality defects of the enameled wire during the production process.

In order to solve the above technical problems, the utility model adopts the following technical scheme: an enameled wire online detection device, including a detection bracket, the detection bracket is provided with a row of detection guide wheels along the horizontal direction, and each detection guide wheel corresponds to the detection of a passing wire. The enameled wire, the detection guide wheel is a conductor, the detection guide wheel inputs a detection current, and the detection guide wheel outputs a detection signal.

Preferably, the detection bracket includes two side plates, a support column is arranged between the two side plates, the support column is parallel to the axis of the detection guide wheel, and a row of signal acquisition boards is arranged on the support column, Each signal acquisition board correspondingly collects a detection signal of a detection guide wheel.

Preferably, the signal acquisition board is provided with binding posts, and wires are connected to the binding posts.

The utility model utilizes the current and voltage characteristics generated by lacquer bumps, pinholes, and bare wires to identify various quality defects of the enameled wire during the production and transmission of the enameled wire, has high detection efficiency, and can prevent defective products from flowing to the market.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

Fig. 1 is the structural representation of enameled wire online detection device;

Fig. 2 is a flow chart of a high-speed ultra-fine enameled wire online detection method.

detailed description

As shown in Figure 1, an enameled wire online detection device includes a detection bracket 1, and the detection bracket 1 is provided with a row of detection guide wheels 3 along the horizontal direction, and each detection guide wheel 3 corresponds to detecting a passing enameled wire. The detection guide wheel 3 is a conductor, and the detection guide wheel 3 inputs a detection current, and the detection guide wheel 3 also outputs a detection signal.

Specifically, the detection bracket 1 includes two side plates 11, a support column 13 is arranged between the two side plates 11, the support column 13 is parallel to the axis of the detection guide wheel 3, and the support column 13 is A row of signal acquisition boards 2 is provided, and each signal acquisition board 2 correspondingly collects a detection signal of a detection guide wheel 3 . The signal acquisition board 2 is provided with a binding post 22, and a wire is connected to the binding post 22.

The axle 31 of the detection guide wheel 3 is supported in the support hole of the signal acquisition board 2 , and the signal acquisition plate is provided with a locking screw 21 to lock the axle in the support hole. A fixing sleeve 12 is arranged on the inner side of the side plate, and the end of the support column 13 is arranged in the fixing sleeve 12 and fixed by fastening screws 14 .

Since the signal acquisition board 2 and the detection guide wheel 3 are composed of conductors, the input detection current passes through the wire, the signal acquisition board, the detection guide wheel and is transmitted to the enameled wire in turn, and then the feedback current signal passes through the detection guide wheel, signal The acquisition board and the wires are transmitted to the signal conversion device and the signal analysis device.

In addition to the enameled wire online detection device mentioned above, the high-speed ultra-fine enameled wire online detection equipment also includes an information analysis device. The information analysis device runs on a computer, and the detection results can be displayed on the computer monitor.

As shown in Figure 2, the high-speed ultra-fine enameled wire online detection method, first, detect the current and voltage signals through the enameled wire online detection device, and the enameled wire continuously passes through the detection guide wheel of the enameled wire online detection device; then, the detection signal output by the detection guide wheel is transmitted to The information analysis device performs processing; the information analysis device includes a signal conversion module, a defect detection module, and a defect alarm module; the signal conversion module converts the detection signal into a digital signal, and the defect detection module analyzes the digital signal and detects The defects of enameled wires such as lacquer warts, pinholes and bare wires are stored, and the defect alarm module is used to alarm the defects of enameled wires.

When there is varnish on the enameled wire of the detection guide wheel, the current signal in the detection signal is an instantaneous high current signal. For example, if the set current value is 5 mA, when a defect occurs, it will suddenly increase to a current value of 10 or more, and the signal will be discontinuous.

When there is a pinhole in the enameled wire passing through the detection guide wheel, the voltage signal in the detection signal will be amplified. For example, the preset voltage signal is 350-1500v, and a large voltage is applied to the detection guide wheel. When the enameled wire runs to the detection guide wheel, if the enameled wire insulation layer is broken down, the voltage signal will be amplified at this time; The voltage value between the detection guide wheel and the detection guide wheel is 0.

When there is bare wire in the enameled wire passing through the detection guide wheel, the voltage signal in the detection signal will be amplified, and the short-circuit current will also suddenly increase. This function is based on the pinhole. If there is a bare wire, the short-circuit current will suddenly increase when the guide wheel contacts the wire, and a signal will be generated for continuous discharge, and a long signal will appear on the display at the same time.

The defect detection module includes an enameled wire length measurement unit, a pinhole counting unit, a bare wire counting unit, and a lacquer tumor counting unit. When the number of pinholes per unit length exceeds a set number, the defect alarm module sends a pinhole alarm. When the unit When the number of bare wires within the length exceeds the set number, the defect alarm module sends a bare wire alarm, and when the number of paint bumps per unit length exceeds the set number, the defect alarm module sends a paint bump alarm.

The state of the alarm can be set according to the requirements. Usually, the calculation unit is the number of meters, that is, the number of defects within a certain number of meters is used as the basis for the alarm. If the paint tumor alarm is set to 4 defects within 30 meters, that is to say The system will alarm when there are 4 paint tumor signals within 30 meters; the commonly used analysis unit is a period of 30 meters. The alarm is mainly reflected in the sound and the icon display in the display; at the same time, when an alarm occurs, it is necessary to log in to the display interface to eliminate the alarm. At the same time, in order to prevent the problem of defective outflow caused by arbitrary operations, it is connected with the disc change signal, that is, the alarm In addition to the above controls, the final elimination must also be processed offline on the axis of the alarm in order to properly realize the elimination of the alarm.

The utility model uses the cumulative counting function of the computer to count the collected signals and convert them into histograms for identification. Strong anti-interference and other advantages, the system simultaneously monitors enameled wire defects such as lacquer warts, pinholes, and bare wires, and broken wires online. The process monitoring data is stored in the SQL database, and the original data can be adjusted according to the needs, so as to trace and improve product quality. Provide evidence.

Claims (3)

1. an enameled wire on-line measuring device, comprise Bracket for Inspection, it is characterized in that: described Bracket for Inspection is horizontally provided with one and lists and indexes survey guide wheel, each detects the enameled wire that guide wheel correspondence detects a process, described detection guide wheel is electric conductor, described detection guide wheel input has detection electric current, and described detection guide wheel exports detection signal.

2. a kind of enameled wire on-line measuring device according to claim 1, it is characterized in that: described Bracket for Inspection comprises two blocks of side plates, a support column is provided with between two blocks of side plates, described support column and the axis being parallel detecting guide wheel, described support column is provided with a row signal collection plate, and each block signal collection plate correspondence gathers the detection signal of a detection guide wheel.

3. a kind of enameled wire on-line measuring device according to claim 2, is characterized in that: described signal acquiring board is provided with binding post, described binding post is connected with wire.