CN2219860Y

CN2219860Y - Infrared detector for cigarette

Info

Publication number: CN2219860Y
Application number: CN 94243875
Authority: CN
Inventors: 沈晖; 孙德平
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-10-26
Filing date: 1994-10-26
Publication date: 1996-02-14
Anticipated expiration: 2004-10-26

Abstract

The utility model relates to a cigarette detecting device for a cigarette packing machine, which can accurately detect the quality defects of cigarette lack, cigarette breakage, cigarettes without mouths, etc. and generate defect existing signals which are sent to a control circuit of a packing machine so that unqualified cigarette packets are eliminated. Twenty infrared optical fiber sensors are arranged according to the arrangement rule of cigarettes (9) in a mould package (7) of the packing machine and accurately correspond to the cigarettes (9) by the principle that the cigarettes have reflection functions to infrared light, and then the utility model carries out no-damage detection for the cigarettes (9) in the mould package (7). When cigarettes having no defects are contained in the mould package (7), the output of the utility model forms a high-impedance state; when the defects of cigarette lack, cigarette breakage, mouth drop, etc. exist in the mould package (7), the output of the utility model is a low level, and electrical signals outputted by the utility model are sent to the control circuit of the packing machine to be processed.

Description

Infrared cigarette props up detector

The utility model is that a kind of infrared cigarette that is used on the cigarette packer props up detection means, cigarette Zhi Jinhang during it can close the wrapping machine mould detects, can detect exactly and fall vacant disconnected and the packaging quality defective such as have cigarette not have to chew, and produce that " " signal is sent into the wrapping machine control circuit to defectiveness, and the control rejecting mechanism is rejected the nonconformity tobacco bale.

Whether at present the various cigarettes that use prop up detector and be unable to do without all that to use probe, its principle all be by mechanical drive probe compressing cigarette to be propped up, be subjected to cigarette to prop up antagonistic force by probe and oppress and judge that the cigarette of mould in closing props up whether to have and lack, disconnectedly prop up and defective such as have cigarette not have to chew, owing to adopt probe compressing cigarette to prop up, it is to diminish detection that cigarette is propped up, and uses mechanical probes, and the life-span is short, reliability is not high, in addition, this class cigarette props up detector and will link the contraposition difficulty with mechanical rocking arm, the flight-line maintenance amount is big, the service expenditure height.

The purpose of this utility model is exactly that a kind of detecting device that cigarette props up that do not damage will be provided, utilize the infrared light reflection principle, that is to say and utilize cigarette to prop up the phenomenon of end face energy reflects infrared light, can the infrared light that receive reflected back by sensor have judged whether to lack, disconnected, the packing defective such as have cigarette not have to chew, owing to adopt the infrared light reflection principle to cigarette Zhi Jinhang non-destructive test, infrared cigarette props up the interlock of detector discord mechanical equipment, fixed installation, contraposition is convenient, there is not mechanical maintenance capacity, long service life, the reliability height.

For realizing this purpose, the utility model is to utilize cigarette to prop up to have the principle of reflex to adopt the cigarette Zhi Jinhang of infrared optical fiber sensor during the wrapping machine mould is closed to detect to infrared light, its specific practice is: this infrared cigarette prop up be equipped with in the detector close with the wrapping machine mould in 20 cigarettes prop up cooresponding 20 the infrared optical fiber sensors of end face arrangement regulation, infrared cigarette is propped up detector be installed in the detection position exactly, it is corresponding one by one to make that infrared optical fiber sensor and cigarette prop up end face, when detecting, prop up end face emission infrared light by the infrared optical fiber sensor to cigarette, cigarette in mould closes props up not lack and props up, disconnected and when mass defect such as having cigarette not have to chew, the infrared light that each infrared optical fiber sensor emission goes out can both prop up end face reflection by corresponding cigarette and return, and be sent in the photo amplifier by light transmitting fiber and produce " zero defect " electric signal, otherwise, if the cigarette during mould closes has propped up to lack and has propped up, disconnected and when mass defect such as having cigarette not have to chew, then have at least the infrared light of an infrared optical fiber sensor emission not reflect, so in photo amplifier, produce " defectiveness " electric signal, send into the wrapping machine control circuit and handle, and the control rejecting mechanism is rejected the nonconformity tobacco bale.

Key problem in technology of the present utility model is to prop up this principle of energy reflects infrared light according to cigarette, adopt the infrared optical fiber sensor, cigarette Zhi Jinhang is detected, its advantage is: realized non-destructive test that cigarette is propped up, the reliability height, long service life, the utility model is described in further detail below in conjunction with accompanying drawing:

Accompanying drawing one is a structure principle chart:

Accompanying drawing two is detection head constructionals drawing;

Accompanying drawing three is orifice structure figure;

Accompanying drawing four is box body structure figure;

Accompanying drawing five is fixing rack structure figure;

Accompanying drawing six is circuit catenation principle figure.

The utility model (shown in figure one) is mainly by detection head (1), and protection sleeve (8) and photo amplifier (2) are formed.

Detection head of the present utility model (shown in figure two) is mainly by orifice plate (3), box body (4), and fixed support (5) and 20 infrared optical fiber sensors (6) are formed.

Have above the orifice plate (shown in figure three) 20 with the wrapping machine mould close in cigarette prop up the cooresponding hole of end face sorting position, be used for installing infrared optical fiber sensor (6), four holes on four angles of orifice plate (3) are to be used for being connected of orifice plate (3) and box body (4) (shown in the accompanying drawing four).On the box body (4); a hold-down arm is respectively arranged down; hole on hold-down arm can make box body (4) and fixed support (5) (shown in the accompanying drawing five) tie on; also have one to be used to draw fibre-optic hole in box body (4) rear end; two screw slotted holes in the middle of the fixed support (5) are used for being connected with box body (4); four slotted holes on four angles are used for the accurate contraposition that detection head (1) and mould close (7); during assembling shown in accompanying drawing two; 20 infrared optical fiber sensors (6) are installed in 20 holes of orifice plate (3); orifice plate (3) is fixed on the box body (4) with screw; box body (4) is fixed on the fixed support (5), and the fiber optic cable (10) of 20 infrared optical fiber sensors (6) is pricked poly-bunchy and drawn by protection sleeve (8) introducing photo amplifier (2) by box body (4) back stomidium in box body (4).

Accompanying drawing six is circuit catenation principle figure of photo amplifier (2), photo amplifier of the present utility model is to be made by the form that combines with the matching used a plurality of photo amplifiers of infrared optical fiber sensor, 20 infrared optical fiber sensors of its circuit requirement have Er Shilu independently to export, it is the detected state that the output of every road only reflects a sensor, the way of output is the output of NPN transistor collector open circuit, can finish following measuring ability by the circuit connection of accompanying drawing six like this.

When mould close cigarette in (7) prop up (9) do not lack, disconnected and when defective such as having cigarette not have to chew, the infrared light of 20 infrared optical fiber sensor emission in the detection head (1) props up end face reflection by cigarette returns, and is " high-impedance state " through photo amplifier (2) output.

When mould close cigarette in (7) prop up (9) have lack, disconnected and when defective such as having cigarette not have to chew, 20 infrared optical fiber sensors in the detection head (1) have at least the infrared light of an emission not reflect, and are output as " low level " through photo amplifier (2).

The signal of amplifier (2) output just can be sent into the wrapping machine control circuit and handle.

Claims

1, a kind of cigarette that is used on the cigarette packer props up detection means, it is characterized in that utilizing cigarette to prop up infrared light is had reflex, 20 infrared optical fiber sensors are closed in (7) by the wrapping machine mould that 20 cigarettes prop up that arrangement regulation is arranged and accurately corresponding with it, mould is closed cigarette in (7) to be propped up (9) and carries out non-destructive test, the cigarette that closes in (7) when mould props up (9) intact, disconnected and when defective such as having cigarette not have to chew, the infrared light that all infrared optical fiber sensor emission go out all can prop up end face reflection by cigarette and return, output " zero defect " signal, otherwise, if mould closes cigarette in (7) and props up (9) and have and lack, disconnected and when defective such as having cigarette not have to chew, then have at least the infrared light of an infrared optical fiber sensor emission not reflect, output " defectiveness " signal.

2, based in the claim 1..Detecting element,

Its technical characterictic is to have adopted the infrared optical fiber sensor.