CN201555601U

CN201555601U - Reversible metering device

Info

Publication number: CN201555601U
Application number: CN2009202594333U
Authority: CN
Inventors: 高波; 周乃勇; 吴志泉; 吴传清; 林明清
Original assignee: Hunan Zhongtai Special Equipment Co Ltd
Current assignee: Hunan Zhongtai Special Equipment Co Ltd
Priority date: 2009-11-24
Filing date: 2009-11-24
Publication date: 2010-08-18
Anticipated expiration: 2019-11-24

Abstract

Disclosed is a reversible metering device. A metering roll of the reversible metering device is arranged at a position approaching a wind-up roll through a bearing, detecting point magnetic steels are arranged on a peripheral end surface at one end of the metering roll, a bearing at the other end of the metering roll is provided with a brake device, a pressure roll is arranged above the metering roll and parallel to an axis line of the metering roll, a metering display and a signal conversion box are arranged at a position approaching the metering roll, a counting sensor is arranged on a fixing rack, the fixing rack approaches an end surface of the metering roll, the counting sensor approaches the detecting point magnetic steel, a signal line of the counting sensor is connected with the metering display through the signal conversion box, and the wind-up roll, an unwinding roll and the metering roll are reversible and are driven by a motor. The reversible metering device overcomes shortages that the present reversible counter only can realize adding or subtracting in one direction but can not identify whether directions are changed or not. The reversible metering device is simple in structure and low in price, can realize positive or negative counting, and can achieve effective identical to that of a PLC.

Description

Reversible measuring apparatus

Technical field

The utility model relates to a kind of measuring apparatus, particularly a kind of reversible measuring apparatus.

Background technology

The quality testing of finished product coiled material is last procedure, this operation is to pass through a testing district by traction electric machine by certain speed drawing coiled material when practical operation, in this zone, the finished product coiled material is carried out strict quality arbitration, require simultaneously the physical length of coiled material is accurately measured, carry out the packing of rolling again then.And in the actual detected process, tend to occur such a case, be exactly to work as a certain zone of coiled material, and this somewhere, zone is had a question by the testing district, in the time of can not correctly judging for the moment, need should the zone to return to the testing district again and carry out analysis confirmation.Instrument for gauge length will be done subduction in real time to the part of returning, and the physical length that could protect positive coiled material is constant, not by the misdescription number.Whether present general up-down counter all can only be realized unidirectionally adding counting or subtracting counting, more can not discern direction and be changed.Though PLC can realize the purpose of plus-minus counting by software program, the price height, system complex is unfavorable for the control of cost.

The utility model content

At the deficiency that above-mentioned similar technology exists, the purpose of this utility model provides a kind of simple and practical reversible measuring apparatus, is requiring positive movement to add counting, when counter motion subtracts counting, can both correctly measure the device of this coiled material physical length.

The technical solution of the utility model is: comprise that wind-up roll, let off roll, testing district and coiled material is characterized in that: metering roll is by the position of Bearing Installation at close wind-up roll, on the circumferential end surfaces of metering roll one end the check point magnet steel is installed, on the bearing of the other end brake gear is housed; Pressure roll be contained in metering roll directly over and with the axis parallel of metering roll; Metering display instrument and conversion of signals case are installed near on the position of metering roll, sensor for countering is installed on the fixed mount, fixed mount is near the metering roll end face, sensor for countering near the check point magnet steel and with the distance of check point magnet steel be 2-4mm, the signal wire of sensor for countering by the conversion of signals case with measure display instrument and be connected; Wind-up roll wherein, let off roll and metering roll are reversible, respectively by motor-driven.

Described metering roll is by the position of Bearing Installation at close rolling place 0.5m-1m.

As require the measuring accuracy height, and can a plurality of check point magnet steel be installed on the circumferential end surfaces of described metering roll one end, the check point magnet steel of installation is many more, and precision is high more, can satisfy different accuracy of detection demands.

Described metering display instrument is selected general HB96J type reversible counting instrument for use.

The utility model has the advantages that: can satisfy positive movement add the counting and counter motion subtract counting, can correctly measure the physical length of coiled material.This apparatus structure is simple, realizes easily, need not carry out mode, and is cheap, but can reach the effect identical with PLC.

Description of drawings

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

Fig. 2 is a side end face figure of the utility model metering roll;

Fig. 3 is circuit theory diagrams of the present utility model;

Fig. 4 is a wiring diagram in kind of the present utility model.

Embodiment

Now in conjunction with the accompanying drawings, technology contents of the present utility model is described further.

Comprise wind-up roll 1, let off roll 8, testing district 7 and coiled material 9, metering roll 4 is by the position of Bearing Installation at close wind-up roll 1 0.5m-1m of place, a plurality of check point magnet steel 5 are installed on the circumferential end surfaces of metering roll 4 one ends, the check point magnet steel of installing 5 is many more, precision is high more, can satisfy different accuracy of detection demands.On the bearing of metering roll 4 other ends brake gear is housed, in the time of between last coiled material 9 is by metering roll 4 and pressure roller 3, metering finishes, and provides brake signal, and positive measuring accuracy is protected in metering roll 4 stall immediately.Pressure roll 3 be contained in metering roll 4 directly over and with the axis parallel of metering roll 4, the effect of pressure roll 3 is the friction force that improves between coiled material 9 and the metering roll 4, makes it to be unlikely to that skidding is arranged.Metering display instrument 2 is selected general HB96J type reversible counting instrument for use, and it has positive and negative two input ends, and sensor for countering A inserts by signal converter and adds counting end and subtract counting end.Metering display instrument 2 is installed near on the position of metering roll 4 with conversion of signals case 6, avoids main control box as far as possible, reduces sensor, and the distance between the metering display instrument 2 reduces interference source.Sensor for countering A is installed on the fixed mount, and fixed mount is near metering roll 4 end faces, sensor for countering A near check point magnet steel 5 and with the distance of check point magnet steel 5 be 2-4mm.The signal wire of sensor for countering A is connected with metering display instrument 2 by conversion of signals case 6.Wherein wind-up roll 1, and let off roll 8 and metering roll 4 are reversible, respectively by motor-driven.Coiled material 9 length between wind-up roll 1 and the metering roll 4 can be provided with initial value by counter and solve.

Among Fig. 3 and Fig. 4, SB1 power initiation button, SB2 power supply stop button, KA power supply relay, SB3 forward start button, SB4 forward stop button, SB5 reverse start button, the reverse stop button of SB6, KM1 forward contactor, the reverse contactor of KM2, KA1 forward conversion relay, KA2 reverse transformation relay; The a end is for adding counting end among Fig. 4, and the b end is for subtracting counting end, and the c end is common port, and the d end is power end.

Principle of work of the present utility model is as follows:

Press SB 1, the control power supply is connected in the KA adhesive, and the energising of metering display instrument is not subjected to forward KM1 and reverse KM2 to start the influence that stops, unless press stop button SB2.

During the forward metering, wind-up roll 1 and metering roll 4 work.

Start SB3, KM1, KA1 work simultaneously, and KA1 normally opened contact closure is sent the signal of sensor for countering A to the metering display instrument, realize adding counting, and KM2, KA2 do not work, and KA2 will measure display instrument and subtract the counting end isolation.

After pressing start button SB3, wind-up roll 1 and metering roll 4 work, the check point magnet steel 5 inswept sensor for countering A of metering roll 4 rotating band moved end faces send pulse signal.The normal closure of making war of the forward relay that the synchronous signal transfer trunk is 6 li (also can use contactless class switch) is sent the transducing signal of sensor for countering A into metering display instrument 2 and is added counting, and converts the physical length value to, is shown by metering display instrument 2.And, add counting because not work of negative phase relay will subtract the counting end Signal Spacing its normal battle.

During reverse metering, let off roll 8 and metering roll 4 work.

In the time of need returning: KM1, KA1 stop, and startup SB5, KM2, KA2 work simultaneously, and KA2 normally opened contact closure is sent the sensor for countering signal into metering display instrument 2 and realized subtracting counting.KA1 will add the counting end Signal Spacing.

When needs returned to testing district 7 with coiled material, wind-up roll 1 quit work with the forward relay.Let off roll 8 and metering roll 4 reverse work, the negative phase relay that the conversion of signals case is 6 li is connected, and the sensor for countering signal is sent into metering display instrument 2 do and subtract counting in real time, will measure display instrument and add the counting end isolation.Realized the reversible metering of coiled material 9 like this.

Claims

1. reversible measuring apparatus, comprise wind-up roll (1), let off roll (8), testing district (7) and coiled material (9), it is characterized in that: metering roll (4) is by the position of Bearing Installation at close wind-up roll (1), check point magnet steel (5) is installed on the circumferential end surfaces of metering roll (4) one ends, on the bearing of the other end brake gear is housed; Pressure roll (3) be contained in metering roll (4) directly over and with the axis parallel of metering roll (4); Metering display instrument (2) is installed near on the position of metering roll (4) with conversion of signals case (6), sensor for countering (A) is vertically mounted on the fixed mount, fixed mount is near metering roll (4) end face, sensor for countering (A) near check point magnet steel (5) and with the distance of check point magnet steel (5) be 2-4mm, the signal wire of sensor for countering (A) by conversion of signals case (6) with measure display instrument (2) and be connected; Wind-up roll (1) wherein, let off roll (8) and metering roll (4) are reversible, respectively by motor-driven.

2. reversible measuring apparatus according to claim 1 is characterized in that: described metering roll (4) is located the position of 0.5m-1m at close wind-up roll (1) by Bearing Installation.

3. reversible measuring apparatus according to claim 1 is characterized in that: a plurality of check point magnet steel (5) are installed on the circumferential end surfaces of described metering roll (4) one ends.

4. reversible measuring apparatus according to claim 1 is characterized in that: described metering display instrument (2) is selected general HB96J type reversible counting instrument for use.