CN104016100B - The method of inspection of slipping of the belt and device - Google Patents

Abstract

The invention discloses a kind of method of inspection and device of slipping of the belt, relate to detection technique field, wherein, method comprises: determine that examined object is preset the transmission situation reference value detecting length by Belt Conveying when belt does not skid, wherein, the length detecting length and be less than examined object is preset; Measure examined object by presetting the transmission situation detected value detecting length described in Belt Conveying; The slipping of the belt rate between described default detection length in operational process according to described transmission situation reference value and described transmission situation detected value determination examined object; According to described slipping of the belt rate and default skidding reference value determination examined object between described default detection length in operational process belt whether skid.The embodiment of the present invention can realize the effective detection to slipping of the belt.

Description

The method of inspection of slipping of the belt and device

Technical field

The present invention relates to detection technique field, especially a kind of method of inspection of slipping of the belt and device.

Background technology

Schematic diagram when Fig. 1 and Fig. 2 is respectively the conveying of tobacco bale between wrapping machine main and auxiliaries and the birds-eye view of cigarette packet conveying channel, as depicted in figs. 1 and 2, wrapping machine operationally, driven by motor drive wheel 103, drive wheel 103 drives belt 102, and the tobacco bale 101 that wrapping machine main frame is sent here by belt 102 is delivered to subsidiary engine and packs further.Wrapping machine is on speeds control, belt 102 is always made to carry the speed of tobacco bale higher than the speed of wrapping machine main frame supply tobacco bale, therefore, in course of conveying, do not occur premised on sipping fault by belt, always there is gap between tobacco bale 101, cause tobacco bale to damage to prevent from mutually extruding between tobacco bale 101.

But, drive wheel 103 drives belt 102 and belt 102 to drive tobacco bale 101 all to be undertaken by friction force, can cause occurring sipping fault due to reasons such as stretching, wearing and tearing during belt 102 long-time running, this fault comprises two kinds of situations: one occurs between belt 102 and tobacco bale 101 skidding; Another kind occurs between drive wheel 103 and belt 102 skidding.As shown in Figure 3, slipping of the belt fault can cause the mutual downthrust of operating tobacco bale 101 and damage.

Summary of the invention

Embodiment of the present invention technical matters to be solved is: the method for inspection and the device that provide a kind of slipping of the belt, to realize effective detection of whether skidding to belt.

According to an aspect of the present invention, the method for inspection of a kind of slipping of the belt that the embodiment of the present invention provides, comprising:

Determine that examined object is preset the transmission situation reference value detecting length by Belt Conveying when belt does not skid, wherein, preset the length detecting length and be less than examined object;

Measure examined object by presetting the transmission situation detected value detecting length described in Belt Conveying;

The slipping of the belt rate between described default detection length in operational process according to described transmission situation reference value and described transmission situation detected value determination examined object;

According to described slipping of the belt rate and default skidding reference value determination examined object between described default detection length in operational process belt whether skid.

According to another aspect of the present invention, the detecting device of a kind of slipping of the belt that the embodiment of the present invention provides, comprising:

Transmission situation reference value determining unit, for determining that examined object is preset the transmission situation reference value detecting length by Belt Conveying when belt does not skid, wherein, presets the length detecting length and be less than examined object;

Transmission situation detected value measuring unit, for measuring examined object by presetting the transmission situation detected value detecting length described in Belt Conveying;

Slipping of the belt rate determining unit, for the slipping of the belt rate between described default detection length in operational process according to described transmission situation reference value and described transmission situation detected value determination examined object;

Slipping of the belt determining unit, for according to described slipping of the belt rate and default skidding reference value determination examined object between described default detection length in operational process belt whether skid.

According to a further aspect of the invention, the detecting device of a kind of slipping of the belt that the embodiment of the present invention provides, comprising:

Multiple photoelectric detector, it is arranged on belt Transfer pipe, and each photoelectric detector is used for starting when examined object being detected to send detection signal to controller, until described examined object is completely by this photoelectric detector; Wherein, the distance between two adjacent photoelectric detectors detects length for presetting, and presets the length detecting length and be less than examined object;

Incremental shaft encoder, is arranged on the drive wheel of belt, for rotating to the even output increment impulse singla of controller with drive wheel;

Controller, for adding up at least one examined object average increment impulse singla quantity that in operational process, incremental shaft encoder exports between adjacent two photoelectric detectors when belt does not skid; Measure the examined object delta pulse number of signals that in operational process, incremental shaft encoder exports between adjacent two photoelectric detectors; Slipping of the belt rate is calculated according to described average increment impulse singla quantity and described delta pulse number of signals; According to described slipping of the belt rate and default skidding reference value determination examined object between described default detection length in operational process belt whether skid.

The method of inspection of the slipping of the belt provided based on the above embodiment of the present invention and device, determine that examined object is preset the transmission situation reference value detecting length by Belt Conveying when belt does not skid, and wherein, presets the length detecting length and be less than examined object; Measure examined object and preset the transmission situation detected value detecting length by Belt Conveying; The slipping of the belt rate between default detection length in operational process according to transmission situation reference value and transmission situation detected value determination examined object; According to slipping of the belt rate and default skidding reference value determination examined object between default detection length in operational process belt whether skid.Compared with prior art, the present invention can determine whether belt skids, and damages to prevent examined object from mutually extruding effectively.

Below by drawings and Examples, technical scheme of the present invention is described in further detail.

Description of the invention provides in order to example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the schematic diagram in prior art between wrapping machine main and auxiliaries during tobacco bale conveying;

Fig. 2 is the birds-eye view of cigarette packet conveying channel shown in Fig. 1;

Fig. 3 is the schematic diagram that the tobacco bale caused due to slipping of the belt in prior art extrudes mutually;

Fig. 4 is the schematic flow sheet of a method of inspection embodiment of slipping of the belt of the present invention;

Fig. 5 is the structural representation of a detecting device embodiment of slipping of the belt of the present invention;

Fig. 6 is the schematic diagram being furnished with two photoelectric detectors in the detecting device embodiment of slipping of the belt of the present invention on Belt Conveying passage;

Fig. 7 is the schematic diagram being furnished with two or more photoelectric detector in the detecting device embodiment of slipping of the belt of the present invention on Belt Conveying passage;

Fig. 8 is the schematic diagram of incremental shaft encoder in the detecting device embodiment of slipping of the belt of the present invention;

Fig. 9 is the schematic diagram of the position relationship of incremental shaft encoder and drive wheel in the detecting device embodiment of slipping of the belt of the present invention;

Figure 10 is the schematic diagram that in the detecting device embodiment of slipping of the belt of the present invention, incremental shaft encoder rotates output increment impulse singla with drive wheel;

Figure 11 is the schematic diagram of statistical average delta pulse signal in the detecting device embodiment of slipping of the belt of the present invention;

Figure 12 is the structural representation of another embodiment of detecting device of slipping of the belt of the present invention;

Figure 13 is the sequential chart of the statistics delta pulse signal corresponding with Fig. 6;

Figure 14 is the structural representation of another embodiment of detecting device of slipping of the belt of the present invention;

Figure 15 is the schematic flow sheet of another embodiment of method of inspection of slipping of the belt of the present invention;

Figure 16 is the schematic block diagram of a detecting device embodiment of slipping of the belt of the present invention;

Figure 17 is the schematic block diagram of another embodiment of detecting device of slipping of the belt of the present invention;

Figure 18 is the schematic block diagram of another embodiment of detecting device of slipping of the belt of the present invention;

Figure 19 is the schematic block diagram of another embodiment of detecting device of slipping of the belt of the present invention.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

Fig. 4 is the schematic flow sheet of a method of inspection embodiment of slipping of the belt of the present invention.As shown in Figure 4, the method for inspection of the slipping of the belt that this embodiment provides, specifically comprises:

Step 401, determines that examined object is preset the transmission situation reference value detecting length by Belt Conveying when belt does not skid, and wherein, presets the length detecting length and be less than examined object;

Step 403, measures examined object and is preset the transmission situation detected value detecting length by Belt Conveying;

Step 405, the slipping of the belt rate between default detection length in operational process according to transmission situation reference value and transmission situation detected value determination examined object;

Step 407, according to slipping of the belt rate and default skidding reference value determination examined object between default detection length in operational process belt whether skid.

The method of inspection of the slipping of the belt that the present embodiment provides, determines that examined object is preset the transmission situation reference value detecting length by Belt Conveying when belt does not skid, and wherein, presets the length detecting length and be less than examined object; Measure examined object and preset the transmission situation detected value detecting length by Belt Conveying; The slipping of the belt rate between default detection length in operational process according to transmission situation reference value and transmission situation detected value determination examined object; According to slipping of the belt rate and default skidding reference value determination examined object between default detection length in operational process belt whether skid.Compared with prior art, the present embodiment can determine whether belt skids, and damages to prevent examined object from mutually extruding effectively.

Note, " examined object " in the present invention can be, such as tobacco bale, smoke box etc. other can use the object of Belt Conveying.Therefore, whether the method for inspection of slipping of the belt that provides of the embodiment of the present invention and device are suitable for but are not limited to skid to the belt in tobacco bale course of conveying detect.

In practical application, above-mentioned transmission situation reference value and transmission situation detected value can obtain according to different modes.Such as, the running condition of object on belt can be reflected, so that whether inspected object skids on belt according to object through the mode such as impulse singla quantity or time of run of one section of detecting distance.To illustrate respectively below.

Fig. 5 is the structural representation of a detecting device embodiment of slipping of the belt of the present invention.As shown in Figure 5, the detecting device of slipping of the belt that this embodiment provides comprises:

Multiple photoelectric detector 501, it is arranged on belt conveyor, and each photoelectric detector is used for starting when examined object being detected to send detection signal to controller, until examined object is completely by this photoelectric detector; Wherein, the distance between two adjacent photoelectric detectors detects length for presetting, and presets the length detecting length and be less than examined object;

Incremental shaft encoder 502, is arranged on the drive wheel of belt, for rotating to controller 503 evenly output increment impulse singla with drive wheel;

Controller 503, for adding up at least one examined object average increment impulse singla quantity that in operational process, incremental shaft encoder 502 exports between adjacent two photoelectric detectors 501 when belt does not skid; Measure the examined object delta pulse number of signals that in operational process, incremental shaft encoder 502 exports between adjacent two photoelectric detectors 501; Slipping of the belt rate is calculated according to average increment impulse singla quantity and delta pulse number of signals; According to slipping of the belt rate and default skidding reference value determination examined object between default detection length in operational process belt whether skid.

Particularly, above-mentioned multiple photoelectric detector 501 can be two or more optical fiber type photoelectric detectors, as shown in Figure 6, belt conveyor is furnished with two photoelectric detector i and j, wherein, Photoelectric Detection j is the photoelectric detector that the direction run along examined object is positioned at after photoelectric detector i.Fig. 7 shows and be furnished with multiple photoelectric detector (1,2 on belt conveyor ... N ₁) situation, wherein, N ₁represent the quantity of the photoelectric detector be covered with required for whole transfer passage, N ₁value by the distance d between adjacent photo detectors _ijand the length of cigarette packet conveying channel determines.Here, the distance d between adjacent photo detectors _ijcan be fixed value, also can be changing value, such as, and (the i=1,2 when i gets different value ... N ₁-1), d ₁₂, d ₂₃d _ijin any two values can be identical, also can be different.

Each photoelectric detector starts when examined object being detected to send detection signal to controller 503, such as 24V d. c. voltage signal, until examined object is completely by this photoelectric detector.As shown in Figure 6A, when the front end of examined object arrives photoelectric detector i, photoelectric detector i starts to send detection signal i to controller; When the front end of examined object arrives photoelectric detector j, photoelectric detector j starts to send detection signal j to controller.Should understand, when photoelectric detector does not detect examined object, detection signal can not be sent to controller.Distance d between two adjacent photoelectric detector i and j _ijfor default detection length, and preset detection length d _ijbe less than the length of examined object, as shown in Figure 6B, arranging like this is that the positive rise of the detection signal j that the positive rise of detection signal i in order to make photoelectric detector i send and photoelectric detector j send is produced by same examined object.

Fig. 8 is the structural representation of incremental shaft encoder in the detecting device embodiment of slipping of the belt of the present invention.As shown in Figure 8, incremental shaft encoder 502 has signal end 512, and rotating shaft 522, and it, by signal end 512 output increment impulse singla, is connected with drive wheel by rotating shaft 522.

Fig. 9 is the schematic diagram of the position relationship of incremental encoder and drive wheel in the detecting device embodiment of slipping of the belt of the present invention.As shown in Figure 9, the drive wheel 103 of belt conveyor 102 is equiped with an incremental shaft encoder 502, drive wheel 103 rotates a circle, incremental shaft encoder 502 also rotates a circle, in the process, incremental shaft encoder 502 evenly exports n delta pulse signal to controller 503, and as shown in Figure 10, the value of n is determined by the model of incremental shaft encoder 502.

When carrying out slipping of the belt and detecting, when manual confirmation belt conveyor is without sipping fault, controller 503 is from receiving the detection signal i of photoelectric detector i transmission, terminate to receiving the detection signal j that photoelectric detector j (j=i+1) sends, the delta pulse number n of incremental shaft encoder 502 output in N continuous time this interval of statistics _ij1, n _ij2... n _ijN, as shown in figure 11, obtain N number of examined object average increment impulse singla quantity that in operational process, incremental shaft encoder 502 exports between adjacent two photoelectric detector i and j when belt does not skid:

${\stackrel{\‾}{n}}_{\mathrm{ij}}=\frac{1}{N}\underset{k=1}{\overset{N}{\mathrm{\Σ}}}{n}_{\mathrm{ijk}}=\frac{1}{N}(n_{\mathrm{ij}1}+n_{\mathrm{ij}2}+...+n_{\mathrm{ijN}})$

Wherein, N>=1, and be integer; I=1,2,3...N ₁-1.Getting N number of value, to be averaging delta pulse number of signals be systematic error in order to reduce because belt shake etc. produces, and the value of N is larger, and systematic error is less, and the average increment impulse singla quantity obtained is more close to calculated value.

Alternatively, can receive in 24V vdc by an end of the open contact of non-self locking-type button, the other end is connected to the input end of controller 503, the open contact of this non-self locking-type button as calibration start button, as shown in figure 12.After pressing calibration start button (open contact of non-self locking-type button closes), controller 503 starts to carry out above-mentioned statistics.In addition, can also receive in 24V vdc by an end of the open contact of self-locking type button, the other end is connected to the input end of controller 503, and the open contact of this self-locking type button is as detection start button.After controller 503 has carried out above-mentioned statistics, Pen-down detection start button (open contact of self-locking type button closes), controller 503 starts to add up some examined object delta pulse number of signals N that in operational process, incremental shaft encoder exports between adjacent two photoelectric detector i and j _ij, as shown in figure 13, it is the detection sequential chart corresponding with Fig. 6.

The present embodiment is by least one examined object of statistics average increment impulse singla quantity that in operational process, incremental shaft encoder exports between adjacent two photoelectric detectors when belt does not skid; And measure the examined object delta pulse number of signals that in operational process, incremental shaft encoder exports between adjacent two photoelectric detectors; Slipping of the belt rate is calculated according to average increment impulse singla quantity and delta pulse number of signals; And according to slipping of the belt rate and default skidding reference value determination examined object between default detection length in operational process belt whether skid.The present embodiment achieves effective detection of whether skidding to belt, to judge whether belt skids in time in belt operational process by photoelectric detector and incremental encoder and controller.

As a specific embodiment of the detecting device of slipping of the belt of the present invention, controller 503 is specifically for according to following formulae discovery slipping of the belt rate (concrete derive following will describe in detail):

$A_{\mathrm{ij}}=|\frac{N_{\mathrm{ij}}}{\stackrel{\‾}{n_{\mathrm{ij}}}}-1|$

Wherein, A _ijrepresent the slipping of the belt rate of examined object between adjacent two photoelectric detector i and j in operational process, represent at least one examined object average increment impulse singla quantity that in operational process, incremental shaft encoder exports between adjacent two photoelectric detector i and j when belt does not skid, N _ijrepresent the examined object delta pulse number of signals that in operational process, incremental shaft encoder exports between adjacent two photoelectric detector i and j.

As another specific embodiment of the detecting device of slipping of the belt of the present invention, if controller 503 is specifically for slipping of the belt rate A _ijbe less than or equal to the first skidding reference value a ₁, then determine examined object between default detection length in operational process belt do not skid;

If slipping of the belt rate A _ijbe greater than the first skidding reference value a ₁, then examined object slipping of the belt in operational process between default detection length is determined.

Further, as another specific embodiment of the detecting device of slipping of the belt of the present invention, if controller 503 is specifically for slipping of the belt rate A _ijbe greater than the first skidding reference value a ₁, and be less than or equal to the second skidding reference value a ₂, then determine examined object between default detection length in operational process slipping of the belt and skid level in allowed band; If slipping of the belt rate A _ijbe greater than the second skidding reference value a ₂, then examined object slipping of the belt and skid level exceeds allowed band in operational process between default detection length is determined; Wherein, 0≤a ₁< a ₂.

It is pointed out that the first skidding reference value a ₁with the second skidding reference value a ₂be the value preset.First skidding reference value a is set ₁being to prevent flase drop, namely detecting slipping of the belt mistakenly when belt does not skid; Under the prerequisite of not flase drop, the first skidding reference value a ₁value preferably exhaust may little value.Second skidding reference value a ₂represent the slipping of the belt rate allowed, a ₂value can set according to actual conditions, to examined object conveying stability requirement higher time, a ₂value get the little value of glue, otherwise get larger value.

Further, as another specific embodiment of the detecting device of slipping of the belt of the present invention, controller 503 also in examined object between default detection length in operational process during slipping of the belt, output alarm signal, as shown in figure 14.User can judge slipping of the belt according to this alerting signal, and skidding rate is in allowed band.Exemplarily, this alerting signal can be optical signal or the sound and light alarm signal by driving warning indicator lamp flicker.Should be understood that the present invention is not limited to this, suitable alerting signal can be taked according to applicable cases.User can adopt correspondingly measure according to this alerting signal, such as, select manual shut-down etc.

Further; as another specific embodiment of the detecting device of slipping of the belt of the present invention; see Figure 14; controller 503 is also for when between default detection length, in operational process, slipping of the belt and skid level exceed allowed band to examined object; shutdown signal is exported to wrapping machine; to stop the operation of wrapping machine in time, avoid examined object mutually to extrude further, cause larger damage.

As another specific embodiment of the detecting device of slipping of the belt of the present invention, again see Figure 14, controller 503 also sends to telltale 1401 to show at least one information in the testing result of average increment impulse singla quantity, delta pulse number of signals, slipping of the belt rate and belt whether being skidded.

When detecting start button and again pressing (that is, the open contact of self-locking type button disconnects), terminate the detection that above-mentioned skidding rate calculates and whether belt skids.

As above; according to the detecting device of the slipping of the belt that the embodiment of the present invention provides; effectively can detect whether belt skids; and at slipping of the belt and skidding rate in allowed band time output alarm signal; and at slipping of the belt and skidding rate not in allowed band time export shutdown signal to wrapping machine; with the damage avoiding the mutual extruding of examined object (such as, tobacco bale) to cause.

As another embodiment of the method for inspection of slipping of the belt of the present invention, the step 401 in flow process shown in Fig. 4 specifically can realize in the following manner: add up at least one examined object average increment impulse singla quantity that in operational process, incremental shaft encoder exports between adjacent two photoelectric detectors when belt does not skid.That is, this average increment impulse singla quantity is transmission situation reference value.

Correspondingly, in this embodiment, step 403 in flow process shown in Fig. 4 specifically can realize in the following manner: measure the examined object delta pulse number of signals that in operational process, incremental shaft encoder exports between adjacent two photoelectric detectors, this delta pulse number of signals is transmission situation detected value.

Further, in this embodiment, the step 405 in flow process shown in Fig. 4 specifically can realize in the following manner:

According to following formulae discovery slipping of the belt rate:

$A_{\mathrm{ij}}=|\frac{N_{\mathrm{ij}}}{\stackrel{\&OverBar;}{n_{\mathrm{ij}}}}-1|$

Wherein, A _ijrepresent the slipping of the belt rate of examined object between adjacent two photoelectric detector i and j in operational process, represent at least one examined object average increment impulse singla quantity that in operational process, incremental shaft encoder exports between adjacent two photoelectric detector i and j when belt does not skid, N _ijrepresent the examined object delta pulse number of signals that in operational process, incremental shaft encoder exports between adjacent two photoelectric detector i and j.

As the another embodiment of the method for inspection of slipping of the belt of the present invention, the step 405 in flow process shown in Fig. 4 can also realize in the following manner:

According to following formulae discovery slipping of the belt rate:

$A_{\mathrm{ij}}=|\frac{T_{\mathrm{ij}}}{\stackrel{\&OverBar;}{t_{\mathrm{ij}}}}-1|$

Wherein, A _ijrepresent the slipping of the belt rate of examined object between adjacent two photoelectric detector i and j in operational process, represent the average operating time of at least one examined object when belt does not skid between adjacent two photoelectric detector i and j, T _ijrepresent the time of run of examined object between adjacent two photoelectric detector i and j.

Particularly, time meter can be utilized to start timing when photoelectric detector i detects examined object, until terminate timing when photoelectric detector j detects this examined object.First, when manually determining that belt is non-slip, by time meter, record being carried out to N (N>=1, and for the integer) time of run of individual examined object between adjacent two photoelectric detector i and j, obtaining average operating time , this average operating time is transmission situation reference value.Then, record is carried out to the time of run of certain examined object between two photoelectric detector i and j that this is adjacent, obtains T _ij, this running time T _ijbe transmission situation detected value.

As another embodiment of the method for inspection of slipping of the belt of the present invention, as shown in figure 15, the step 407 in flow process shown in Fig. 4 can realize in the following manner:

If slipping of the belt rate A _ijbe less than or equal to the first skidding reference value a ₁, then determine examined object between default detection length in operational process belt do not skid;

If slipping of the belt rate A _ijbe greater than the first skidding reference value a ₁, then examined object slipping of the belt in operational process between default detection length is determined.

Further, in this embodiment, if slipping of the belt rate A _ijbe greater than the first skidding reference value a ₁, and be less than or equal to the second skidding reference value a ₂, then determine examined object between default detection length in operational process slipping of the belt and skid level in allowed band; If slipping of the belt rate is greater than the second skidding reference value a ₂, then examined object slipping of the belt and skid level exceeds allowed band in operational process between default detection length is determined; Wherein, 0≤the first skidding reference value a ₁< second skids reference value a ₂.

Further, as another embodiment of the method for inspection of slipping of the belt of the present invention, see Figure 15, can also comprise:

In response to examined object testing result of slipping of the belt in operational process between default detection length, output alarm signal.

As another embodiment of the method for inspection of slipping of the belt of the present invention, then see Figure 15, can also comprise:

In response to examined object between default detection length in operational process slipping of the belt and skid level exceed the testing result of allowed band, export shutdown signal to wrapping machine.

As another embodiment of the method for inspection of slipping of the belt of the present invention, can also comprise:

At least one information in the testing result of whether skid transmission situation reference value, transmission situation detected value, slipping of the belt rate and belt sends to telltale to show.

Figure 16 is the schematic block diagram of a detecting device embodiment of slipping of the belt of the present invention, and the detecting device of the slipping of the belt that this embodiment provides can be used for the method for inspection realizing the slipping of the belt that above-described embodiment provides, and as shown in figure 16, it comprises:

Transmission situation reference value determining unit 1601, for determining that examined object is preset the transmission situation reference value detecting length by Belt Conveying when belt does not skid, wherein, presets the length detecting length and be less than examined object;

Transmission situation detected value measuring unit 1602, for measuring examined object by presetting the transmission situation detected value detecting length described in Belt Conveying;

Slipping of the belt rate determining unit 1603, for according to transmission situation reference value and the slipping of the belt rate of described transmission situation detected value determination examined object between default detection length in operational process;

Slipping of the belt determining unit 1604, for according to slipping of the belt rate and default skidding reference value determination examined object between default detection length in operational process belt whether skid.

The detecting device of the slipping of the belt that the present embodiment provides, transmission situation reference value determining unit 1601 determines that examined object is preset the transmission situation reference value detecting length by Belt Conveying when belt does not skid, wherein, the length detecting length and be less than examined object is preset; Transmission situation detected value measuring unit 1602 is measured examined object and is preset the transmission situation detected value detecting length by Belt Conveying; Slipping of the belt rate determining unit 1603 is the slipping of the belt rate between default detection length in operational process according to transmission situation reference value and transmission situation detected value determination examined object; Slipping of the belt determining unit 1604 according to slipping of the belt rate and default skidding reference value determination examined object between default detection length in operational process belt whether skid.The present embodiment can determine whether belt skids, and damages to prevent examined object from mutually extruding effectively.

As a specific embodiment of the detecting device of slipping of the belt of the present invention, transmission situation reference value determining unit 1601 is specifically for adding up at least one examined object average increment impulse singla quantity that in operational process, incremental shaft encoder exports between adjacent two photoelectric detectors when belt does not skid; Wherein, photoelectric detector is arranged on belt Transfer pipe, and the distance between two adjacent photoelectric detectors detects length for presetting; Incremental shaft encoder is arranged on the drive wheel of belt, and rotates even output increment impulse singla with drive wheel.

Correspondingly, in this embodiment, situation detected value measuring unit 1602 is transmitted specifically for measuring the examined object delta pulse number of signals that in operational process, incremental shaft encoder exports between adjacent two photoelectric detectors.

Further, in this embodiment, slipping of the belt rate determining unit 1603 is specifically for according to following formulae discovery slipping of the belt rate:

$A_{\mathrm{ij}}=|\frac{N_{\mathrm{ij}}}{\stackrel{\&OverBar;}{n_{\mathrm{ij}}}}-1|$

Wherein, A _ijrepresent the slipping of the belt rate of examined object between adjacent two photoelectric detector i and j in operational process, represent at least one examined object average increment impulse singla quantity that in operational process, incremental shaft encoder exports between adjacent two photoelectric detector i and j when belt does not skid, N _ijrepresent the examined object delta pulse number of signals that in operational process, incremental shaft encoder exports between adjacent two photoelectric detector i and j.

As another specific embodiment of the detecting device of slipping of the belt of the present invention, transmission situation reference value determining unit 1601 is specifically for adding up the average operating time of at least one examined object when belt does not skid between adjacent two photoelectric detectors; Wherein, photoelectric detector is arranged on belt Transfer pipe, and the distance between two adjacent photoelectric detectors detects length for presetting.

In this embodiment, situation detected value measuring unit 1602 is transmitted specifically for measuring the time of run of examined object between adjacent two photoelectric detectors.

Further, in this embodiment, slipping of the belt rate determining unit 1603 is specifically for according to following formulae discovery slipping of the belt rate:

$A_{\mathrm{ij}}=|\frac{T_{\mathrm{ij}}}{\stackrel{\&OverBar;}{t_{\mathrm{ij}}}}-1|$

Wherein, A _ijrepresent the slipping of the belt rate of examined object between adjacent two photoelectric detector i and j in operational process, represent the average operating time of at least one examined object when belt does not skid between adjacent two photoelectric detector i and j, T _ijrepresent the time of run of examined object between adjacent two photoelectric detector i and j.

As another specific embodiment of the detecting device of slipping of the belt of the present invention, if slipping of the belt determining unit 1604 is less than or equal to the first skidding reference value specifically for slipping of the belt rate, then determine examined object between default detection length in operational process belt do not skid; If slipping of the belt rate is greater than the first skidding reference value, then determine examined object slipping of the belt in operational process between default detection length.

Further, as another specific embodiment of the detecting device of slipping of the belt of the present invention, if slipping of the belt determining unit 1604 is greater than the first skidding reference value specifically for slipping of the belt rate and is less than or equal to the second skidding reference value, then determine examined object between default detection length in operational process slipping of the belt and skid level in allowed band; If slipping of the belt rate is greater than the second skidding reference value, then determine examined object slipping of the belt and skid level exceeds allowed band in operational process between default detection length; Wherein, 0≤the first skidding reference value < second skids reference value.

Figure 17 is the schematic block diagram of another embodiment of detecting device of slipping of the belt of the present invention, compared with embodiment illustrated in fig. 13, can also comprise in this embodiment:

First output unit 1701, in examined object between default detection length in operational process during slipping of the belt, output alarm signal.

Figure 18 is the schematic block diagram of another embodiment of detecting device of slipping of the belt of the present invention, compared with embodiment illustrated in fig. 13, can also comprise in this embodiment:

Second output unit 1801, for when slipping of the belt and skid level exceed allowed band to examined object in operational process between described default detection length, exports shutdown signal to wrapping machine.

Figure 19 is the schematic block diagram of another embodiment of detecting device of slipping of the belt of the present invention, compared with embodiment illustrated in fig. 13, can also comprise in this embodiment:

Transmitting element 1901, sends to telltale 1302 to show at least one information in the testing result of transmission situation reference value, transmission situation detected value, slipping of the belt rate and belt whether being skidded.

Telltale 1401, for receiving and showing at least one information in the testing result whether transmission situation reference value, transmission situation detected value, slipping of the belt rate and belt skid.

Below in conjunction with Fig. 6 and Fig. 9, for tobacco bale to slipping of the belt rate A _ijcomputing formula derive in detail:

Photoelectric detector i represents in a series of photoelectric detectors installed on cigarette packet conveying channel except last (N ₁individual) any one photoelectric detector outside photoelectric detector, photoelectric detector j (j=i+1) represents the direction run along tobacco bale, the photoelectric detector after photoelectric detector i; When photoelectric detector has detected tobacco bale, output detection signal, such as 24V d. c. voltage signal, on the contrary when tobacco bale not detected, no signal exports.The distance d of photoelectric detector i and j _ijbeing less than the length of tobacco bale, its objective is that the positive rise of the detection signal j that the positive rise of the detection signal i in order to make photoelectric detector i export and photoelectric detector j export is produced by a same deck.

The front end of tobacco bale from photoelectric detector i position (as shown in Figure 6A, photoelectric detector i is now triggered, there is positive rise in the detection signal i that namely photoelectric detector i exports) move to photoelectric detector j position (as shown in Figure 6B, photoelectric detector j is now triggered, there is positive rise in the detection signal j that namely photoelectric detector j exports), the distance that tobacco bale runs in the process equals the distance d of photoelectric detector i and j _ij.

The radius of drive wheel 103 is R, an incremental shaft encoder 502 is installed in drive wheel 103, drive wheel 103 rotates a circle, the rotating shaft 522 of incremental shaft encoder 502 follows rotation one to enclose, incremental shaft encoder 502 exports n delta pulse signal in the process, and n is determined by the model of incremental shaft encoder 502.

When the front end of tobacco bale moves to the process of photoelectric detector j from photoelectric detector i, certain on drive wheel 103 is a bit from position P ₁move to position P ₂(as shown in Figure 9) distance that, drive wheel 103 runs equals position P ₁to position P ₂arc length D _ij, in the process, the phase angle of drive wheel 103 process is α, and the delta pulse number that incremental shaft encoder 502 exports is N _ijso, obtain:

$\mathrm{\&alpha;}=\frac{N_{\mathrm{ij}}}{n}2\mathrm{\&pi;}$

Then:

$D_{\mathrm{ij}}=\mathrm{\&alpha;R}\frac{N_{\mathrm{ij}}}{n}2\mathrm{\&pi;R}...\left(1\right)$

Suppose, in the process, the skidding distance between tobacco bale and belt 102 is Δ D _ij1, the skidding distance between drive wheel 103 and belt 102 is Δ D _ij2, then the skidding distance, delta D of belt 102 _ij=Δ D _ij1+ Δ D _ij2.Wherein, Δ D _ij1represent and drive tobacco bale range ability d _ij, the distance that belt 102 must run is d _ij+ Δ D _ij1; Δ D _ij2represent and drive belt 102 range ability d _ij+ Δ D _ij1, the distance that drive wheel 103 must run is d _ij+ Δ D _ij1+ Δ D _ij2; Δ D _ijrepresent and drive tobacco bale range ability d _ij, the distance that drive wheel 103 must run is d _ij+ Δ D _ijso, obtain:

D _ij＝d _ij+ΔD _ij………………………………………………………(2)

When belt does not have sipping fault, namely skid distance D _ijwhen=0, aggregative formula (1) and (2), that is:

$\left\{\begin{array}{c}{\mathrm{\&Delta;D}}_{\mathrm{ij}}=0\\ D_{\mathrm{ij}}=\frac{N_{\mathrm{ij}}}{n}2\mathrm{\&pi;R}\\ D_{\mathrm{ij}}=d_{\mathrm{ij}}+{\mathrm{\&Delta;D}}_{\mathrm{ij}}\end{array}\right.$

Calculate:

$N_{\mathrm{ij}}=\frac{d_{\mathrm{ij}}n}{2\mathrm{\&pi;R}}$

Order:

$n_{\mathrm{ij}}=\frac{d_{\mathrm{ij}}n}{2\mathrm{\&pi;R}}...\left(3\right)$

Then:

$d_{\mathrm{ij}}=\frac{n_{\mathrm{ij}}}{n}2\mathrm{\&pi;R}...\left(4\right)$

Definition tobacco bale moves to the process of photoelectric detector j from photoelectric detector i, slipping of the belt rate A _ijfor: the skidding distance, delta D of belt 102 _ijthe distance d run with tobacco bale _ijthe absolute value of ratio, that is:

$A_{\mathrm{ij}}=\left|\frac{{\mathrm{\&Delta;D}}_{\mathrm{ij}}}{d_{\mathrm{ij}}}\right|...\left(5\right)$

Aggregative formula (1), (2), (4) and (5), that is:

$\left\{\begin{array}{c}{D}_{\mathrm{ij}}=\mathrm{\&alpha;R}=\frac{N_{\mathrm{ij}}}{n}2\mathrm{\&pi;R}\\ D_{\mathrm{ij}}=d_{\mathrm{ij}}+{\mathrm{\&Delta;D}}_{\mathrm{ij}}\\ d_{\mathrm{ij}}=\frac{n_{\mathrm{ij}}}{n}2\mathrm{\&pi;R}\\ A_{\mathrm{ij}}=\left|\frac{{\mathrm{\&Delta;D}}_{\mathrm{ij}}}{d_{\mathrm{ij}}}\right|\end{array}\right.$

Obtain:

$A_{\mathrm{ij}}=\left|\frac{{\mathrm{\&Delta;D}}_{\mathrm{ij}}}{d_{\mathrm{ij}}}\right|=\left|\frac{D_{\mathrm{ij}}-d_{\mathrm{ij}}}{d_{\mathrm{ij}}}\right|=|\frac{D_{\mathrm{ij}}}{d_{\mathrm{ij}}}-1|=|\frac{\frac{N_{\mathrm{ij}}}{n}2\mathrm{\&pi;R}}{\frac{n_{\mathrm{ij}}}{n}2\mathrm{\&pi;R}}-1|=|\frac{N_{\mathrm{ij}}}{n_{\mathrm{ij}}}-1|...\left(6\right)$

The implication of each parameter in above-mentioned formula:

A _ij: tobacco bale moves to the process of photoelectric detector j from photoelectric detector i, the skidding rate of belt conveyor 102;

N _ij: when the positive rise that the positive rise of detection signal i exported from photoelectric detector i occurs to the detection signal j that photoelectric detector j exports occurs, the delta pulse number that incremental shaft encoder 502 exports;

N _ij: the fixed value determined by formula (3), this parameter equals tobacco bale belt conveyor 102 without skidding (i.e. D _ij=0) N time _ij.

As above derive and obtain slipping of the belt rate A _ij, pass through A _ijcan judge that tobacco bale moves to the process of photoelectric detector j from photoelectric detector i, the skid level of belt 102.A _ijvalue less, then skid level is less, A _ijvalue larger, then skid level is larger.

Claims (31)

1. a method of inspection for slipping of the belt, comprising:

Determine that examined object is preset the transmission situation reference value detecting length by Belt Conveying when belt does not skid, wherein, preset the length detecting length and be less than examined object;

Measure examined object by presetting the transmission situation detected value detecting length described in Belt Conveying;

The slipping of the belt rate between described default detection length in operational process according to described transmission situation reference value and described transmission situation detected value determination examined object;

According to described slipping of the belt rate and default skidding reference value determination examined object between described default detection length in operational process belt whether skid.

2. method according to claim 1, is characterized in that, the described transmission situation reference value determining that examined object presets detection length when belt does not skid by Belt Conveying comprises:

Add up at least one examined object average increment impulse singla quantity that in operational process, incremental shaft encoder exports between adjacent two photoelectric detectors when belt does not skid; Wherein, described photoelectric detector is arranged on belt Transfer pipe, and the distance between two adjacent photoelectric detectors is described default detection length; Described incremental shaft encoder is arranged on the drive wheel of belt, and rotates even output increment impulse singla with drive wheel.

3. method according to claim 2, is characterized in that, described measurement examined object comprises by presetting the transmission situation detected value detecting length described in Belt Conveying:

Measure the examined object delta pulse number of signals that in operational process, incremental shaft encoder exports between adjacent two photoelectric detectors.

4. method according to claim 3, is characterized in that, described according to described transmission situation reference value and described transmission situation detected value determination examined object, the slipping of the belt rate between described default detection length in operational process comprises:

According to following formulae discovery slipping of the belt rate:

$A_{\mathrm{ij}}=|\frac{N_{\mathrm{ij}}}{\stackrel{\&OverBar;}{n_{\mathrm{ij}}}}-1|$

Wherein, A _ijrepresent the slipping of the belt rate of examined object between adjacent two photoelectric detector i and j in operational process, represent at least one examined object average increment impulse singla quantity that in operational process, incremental shaft encoder exports between adjacent two photoelectric detector i and j when belt does not skid, N _ijrepresent the examined object delta pulse number of signals that in operational process, incremental shaft encoder exports between adjacent two photoelectric detector i and j.

5. method according to claim 1, is characterized in that, the described transmission situation reference value determining that examined object presets detection length when belt does not skid by Belt Conveying comprises:

Add up the average operating time of at least one examined object when belt does not skid between adjacent two photoelectric detectors; Wherein, described photoelectric detector is arranged on belt Transfer pipe, and the distance between two adjacent photoelectric detectors is described default detection length.

6. method according to claim 5, is characterized in that, described measurement examined object comprises by presetting the transmission situation detected value detecting length described in Belt Conveying:

Measure the time of run of examined object between adjacent two photoelectric detectors.

7. method according to claim 6, is characterized in that, described according to described transmission situation reference value and described transmission situation detected value determination examined object, the slipping of the belt rate between described default detection length in operational process comprises:

According to following formulae discovery slipping of the belt rate:

$A_{\mathrm{ij}}=|\frac{T_{\mathrm{ij}}}{\stackrel{\&OverBar;}{t_{\mathrm{ij}}}}-1|$

Wherein, A _ijrepresent the slipping of the belt rate of examined object between adjacent two photoelectric detector i and j in operational process, represent the average operating time of at least one examined object when belt does not skid between adjacent two photoelectric detector i and j, T _ijrepresent the time of run of examined object between adjacent two photoelectric detector i and j.

8. method according to claim 1, is characterized in that, described according to described slipping of the belt rate and default skidding reference value determination examined object between described default detection length in operational process belt whether skid and comprise:

If described slipping of the belt rate is less than or equal to the first skidding reference value, then determine examined object between described default detection length in operational process belt do not skid;

If described slipping of the belt rate is greater than the first skidding reference value, then determine examined object slipping of the belt in operational process between described default detection length.

9. method according to claim 8, is characterized in that, described according to described slipping of the belt rate and default skidding reference value determination examined object between described default detection length in operational process belt whether skid and also comprise:

If described slipping of the belt rate is greater than the first skidding reference value and be less than or equal to the second skidding reference value, then determine examined object between described default detection length in operational process slipping of the belt and skid level in allowed band;

If described slipping of the belt rate is greater than the second skidding reference value, then determine examined object slipping of the belt and skid level exceeds allowed band in operational process between described default detection length;

Wherein, 0≤the first skidding reference value < second skids reference value.

10. method according to claim 8 or claim 9, is characterized in that, also comprise:

In response to examined object testing result of slipping of the belt in operational process between described default detection length, output alarm signal.

11. methods according to claim 9, is characterized in that, also comprise:

In response to examined object between described default detection length in operational process slipping of the belt and skid level exceed the testing result of allowed band, export shutdown signal to wrapping machine.

12. methods according to claim 1, is characterized in that, also comprise:

At least one information in the testing result of whether skid described transmission situation reference value, described transmission situation detected value, described slipping of the belt rate and belt sends to telltale to show.

The detecting device of 13. 1 kinds of slipping of the belts, comprising:

Transmission situation reference value determining unit, for determining that examined object is preset the transmission situation reference value detecting length by Belt Conveying when belt does not skid, wherein, presets the length detecting length and be less than examined object;

Transmission situation detected value measuring unit, for measuring examined object by presetting the transmission situation detected value detecting length described in Belt Conveying;

Slipping of the belt rate determining unit, for the slipping of the belt rate between described default detection length in operational process according to described transmission situation reference value and described transmission situation detected value determination examined object;

Slipping of the belt determining unit, for according to described slipping of the belt rate and default skidding reference value determination examined object between described default detection length in operational process belt whether skid.

14. devices according to claim 13, it is characterized in that, described transmission situation reference value determining unit is specifically for adding up at least one examined object average increment impulse singla quantity that in operational process, incremental shaft encoder exports between adjacent two photoelectric detectors when belt does not skid;

Wherein, described photoelectric detector is arranged on belt Transfer pipe, and the distance between two adjacent photoelectric detectors is described default detection length; Described incremental shaft encoder is arranged on the drive wheel of belt, and rotates even output increment impulse singla with drive wheel.

15. devices according to claim 14, it is characterized in that, described transmission situation detected value measuring unit is specifically for measuring the examined object delta pulse number of signals that in operational process, incremental shaft encoder exports between adjacent two photoelectric detectors.

16. devices according to claim 15, is characterized in that, described slipping of the belt rate determining unit is specifically for according to following formulae discovery slipping of the belt rate:

$A_{\mathrm{ij}}=|\frac{N_{\mathrm{ij}}}{\stackrel{\&OverBar;}{n_{\mathrm{ij}}}}-1|$

Wherein, A _ijrepresent the slipping of the belt rate of examined object between adjacent two photoelectric detector i and j in operational process, represent at least one examined object average increment impulse singla quantity that in operational process, incremental shaft encoder exports between adjacent two photoelectric detector i and j when belt does not skid, N _ijrepresent the examined object delta pulse number of signals that in operational process, incremental shaft encoder exports between adjacent two photoelectric detector i and j.

17. devices according to claim 13, is characterized in that, described transmission situation reference value determining unit is specifically for adding up the average operating time of at least one examined object when belt does not skid between adjacent two photoelectric detectors; Wherein, described photoelectric detector is arranged on belt Transfer pipe, and the distance between two adjacent photoelectric detectors is described default detection length.

18. devices according to claim 17, is characterized in that, described transmission situation detected value measuring unit is specifically for measuring the time of run of examined object between adjacent two photoelectric detectors.

19. devices according to claim 18, is characterized in that, described slipping of the belt rate determining unit is specifically for according to following formulae discovery slipping of the belt rate:

$A_{\mathrm{ij}}=|\frac{T_{\mathrm{ij}}}{\stackrel{\&OverBar;}{t_{\mathrm{ij}}}}-1|$

Wherein, A _ijrepresent the slipping of the belt rate of examined object between adjacent two photoelectric detector i and j in operational process, represent the average operating time of at least one examined object when belt does not skid between adjacent two photoelectric detector i and j, T _ijrepresent the time of run of examined object between adjacent two photoelectric detector i and j.

20. devices according to claim 13, it is characterized in that, if described slipping of the belt determining unit is less than or equal to the first skidding reference value specifically for described slipping of the belt rate, then determine examined object between described default detection length in operational process belt do not skid;

If described slipping of the belt rate is greater than the first skidding reference value, then determine examined object slipping of the belt in operational process between described default detection length.

21. devices according to claim 20, it is characterized in that, if described slipping of the belt determining unit is greater than the first skidding reference value specifically for described slipping of the belt rate and is less than or equal to the second skidding reference value, then determine examined object between described default detection length in operational process slipping of the belt and skid level in allowed band;

If described slipping of the belt rate is greater than the second skidding reference value, then determine examined object slipping of the belt and skid level exceeds allowed band in operational process between described default detection length;

Wherein, 0≤the first skidding reference value < second skids reference value.

22. devices according to claim 20 or 21, is characterized in that, also comprise:

First output unit, in examined object between described default detection length in operational process during slipping of the belt, output alarm signal.

23. devices according to claim 21, is characterized in that, also comprise:

Second output unit, for when slipping of the belt and skid level exceed allowed band to examined object in operational process between described default detection length, exports shutdown signal to wrapping machine.

24. devices according to claim 13, is characterized in that, also comprise:

Transmitting element, sends to telltale to show at least one information in the testing result of described transmission situation reference value, described transmission situation detected value, described slipping of the belt rate and belt whether being skidded.

The detecting device of 25. 1 kinds of slipping of the belts, comprising:

Multiple photoelectric detector, it is arranged on belt Transfer pipe, and each photoelectric detector is used for starting when examined object being detected to send detection signal to controller, until described examined object is completely by this photoelectric detector; Wherein, the distance between two adjacent photoelectric detectors detects length for presetting, and presets the length detecting length and be less than examined object;

Incremental shaft encoder, is arranged on the drive wheel of belt, for rotating to the even output increment impulse singla of controller with drive wheel;

Controller, for adding up at least one examined object average increment impulse singla quantity that in operational process, incremental shaft encoder exports between adjacent two photoelectric detectors when belt does not skid; Measure the examined object delta pulse number of signals that in operational process, incremental shaft encoder exports between adjacent two photoelectric detectors; Slipping of the belt rate is calculated according to described average increment impulse singla quantity and described delta pulse number of signals; According to described slipping of the belt rate and default skidding reference value determination examined object between described default detection length in operational process belt whether skid.

26. devices according to claim 25, is characterized in that, described controller is specifically for according to following formulae discovery slipping of the belt rate:

$A_{\mathrm{ij}}=|\frac{N_{\mathrm{ij}}}{\stackrel{\&OverBar;}{n_{\mathrm{ij}}}}-1|$

Wherein, A _ijrepresent the slipping of the belt rate of examined object between adjacent two photoelectric detector i and j in operational process, represent at least one examined object average increment impulse singla quantity that in operational process, incremental shaft encoder exports between adjacent two photoelectric detector i and j when belt does not skid, N _ijrepresent the examined object delta pulse number of signals that in operational process, incremental shaft encoder exports between adjacent two photoelectric detector i and j.

27. devices according to claim 25, is characterized in that, if described controller is less than or equal to the first skidding reference value specifically for described slipping of the belt rate, then determine examined object between described default detection length in operational process belt do not skid;

If described slipping of the belt rate is greater than the first skidding reference value, then determine examined object slipping of the belt in operational process between described default detection length.

28. devices according to claim 27, it is characterized in that, if described controller is greater than the first skidding reference value specifically for described slipping of the belt rate and is less than or equal to the second skidding reference value, then determine examined object between described default detection length in operational process slipping of the belt and skid level in allowed band;

If described slipping of the belt rate is greater than the second skidding reference value, then determine examined object slipping of the belt and skid level exceeds allowed band in operational process between described default detection length;

Wherein, 0≤the first skidding reference value < second skids reference value.

29. devices according to claim 27 or 28, is characterized in that,

Described controller, also in examined object between described default detection length in operational process during slipping of the belt, output alarm signal.

30. devices according to claim 28, is characterized in that,

Described controller, also for when slipping of the belt and skid level exceed allowed band to examined object in operational process between described default detection length, exports shutdown signal to wrapping machine.

31. devices according to claim 25, is characterized in that,

Described controller, also sends to telltale to show at least one information in the testing result of described average increment impulse singla quantity, described delta pulse number of signals, described slipping of the belt rate and belt whether being skidded.