CN103449154A - Detecting and metering device for wood - Google Patents
Detecting and metering device for wood Download PDFInfo
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- CN103449154A CN103449154A CN201310370701XA CN201310370701A CN103449154A CN 103449154 A CN103449154 A CN 103449154A CN 201310370701X A CN201310370701X A CN 201310370701XA CN 201310370701 A CN201310370701 A CN 201310370701A CN 103449154 A CN103449154 A CN 103449154A
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Abstract
The invention discloses a detecting and metering device for wood. The detecting and metering device comprises a wood storage tank, a wood conveying device and a detection device, wherein the wood storage tank is provided with a wood outlet along the length direction of the wood; the wood conveying device is used for conveying the wood such as log from the wood outlet to a detection area; the detection device is used for detecting the length and the section areas of two ends of the wood passing through the detection area; the wood conveying device comprises a plate type conveyor and a chain type conveyor which are adjacently arranged along the conveying direction of the wood; the plate type conveyor is arranged close to the wood storage tank; the conveying speed of the chain type conveyor is higher than that of the plate type conveyor; the height of a conveying surface of the chain type conveyor is smaller than that of a conveying surface of the plate type conveyor. According to the detecting and metering device disclosed by the invention, two adjacent woods falling on the chain type conveyor can be enabled to be arranged at a certain interval; in addition, each log falls on one section of chain not between two sections of chains, so that a sorting beat of the plate type conveyor still can meet the detection beat of the chain type conveyor, the phenomenon that the whole conveying line is blocked is avoided, more accurate measurement data are obtained and the detection efficiency is increased.
Description
Technical field
The present invention relates to the timber measurement metering field, particularly relate to a kind of gauging device of the detection for detection of log.
Background technology
Along with China's Foreign Trade and rapid development of economy, capital construction is not subtracted by the high heat of log demand with log and production, life.2011, China's customs harbour and port, land route imported log be 4,000 ten thousand m3 approximately, in rising trend on year-on-year basis.Volume of timber metering to so a large amount of logs is a very large difficult problem.For a long time, the metering method of domestic log volume is mainly to adopt hand gauging, and the testing staff adopts the manual inspection instruments such as ruler, slide calliper rule, tape measure to carry out the detection of log volume.This method work situation is severe, working strength is high, sense cycle is long, efficiency is low, error is large, reliability is low, and it is larger that volume of timber testing result is affected by the subjective factor such as dipping personnel's experience, sense of responsibility, and be not easy to management and inquiry.
Chinese patent document CN85200857 discloses the automatic volume measuring instrument of a kind of log, this instrument comprises the diameter scanning measurement system, length measuring system, with volume of timber computing system three parts, be provided with infraluminescence diameter scanner unit and diameter photoelectric switching circuit in the diameter scanning measurement system, be provided with linear measure signalling apparatus and length photoelectric switching circuit in length measuring system, be provided with microcomputer and relevant interface circuit in volume of timber computing system.The present invention, by automatically measuring major part, top diameter and the length of log, draws length, footpath level and the volume of timber of log after the input computing machine calculates, this efficiency than manual measurement is much higher.But the conveyer that this volume measuring instrument adopts vertically is transported to surveyed area to timber, every timber is longer through the time of surveyed area like this, and detection efficiency is lower, can not meet the needs that timber in enormous quantities detects.
For the faster volume of measuring efficiently timber, Chinese patent literature CN201233223 discloses a kind of lumber automatic monitor system, comprises laser scanner, for scanning the enforcement railway car, obtains the outer contour data of timber in compartment; Control unit is used for the outer contour data of reception are sent to timber cross section acquiring unit, and controls the unlatching of pick up camera or close; Pick up camera, for taking railway car, and be sent to the car length acquiring unit by picture; Timber cross section acquiring unit, for the outer contour data acquisition timber sectional area by receiving, and send to volume pipe reason unit; The timber measurement administrative unit, obtain according to the timber sectional area of accepting and car length the timber measurement that train loads.This supervisory systems can be carried out to the railway car that is mounted with timber the calculating of whole timber measurement, that is to say train from monitoring system through after, just can directly calculate the timber measurement of this train loading, so the lumber automatic monitor system efficiency of this calculating timber measurement is high especially.But clearly, the mode of this calculating timber measurement is a "ball-park" estimate value, can not measure the true volume of the timber that loads in compartment come, can not calculate in compartment how many timber are arranged, the more important thing is that this checking system can't detect the timber that is deposited in customs critical point and port and pier.
Summary of the invention
For this reason, the technical problem to be solved in the present invention is to provide that a kind of detection efficiency is high, testing result is accurate, and the timber detected applicable to place timber such as piling up customs, harbour detects gauging device.
For achieving the above object, the present invention is by the following technical solutions:
A kind of timber detects gauging device, comprising: the timber material storing box, and described timber material storing box is provided with the timber outlet along the length direction of timber, lumber conveying device, described lumber conveying device is delivered to detection zone for the timber exporting out from described timber, detecting device, be arranged on described lumber conveying device place, for detection of the length of the described timber through described detecting device and the sectional area at two ends, described lumber conveying device comprises along apron conveyor and the chain-linked conveyer of the adjacent setting of timber throughput direction, described platform conveyer arranges near the timber material storing box, described detecting device is arranged on the chain-linked conveyer place, and the delivery speed of described chain-linked conveyer is faster than the delivery speed of described apron conveyor, the height of described chain-linked conveyer conveyor surface is lower than the height of described apron conveyor conveyor surface, and meet described chain-linked conveyer the end from described apron conveyor fall to the last timber of described chain-linked conveyer initial end and next-door neighbour displacement in the interval time that moves between a timber close to the length of N chain pitch.
The timber exit of described timber material storing box is provided with material toggling mechanism, and described material toggling mechanism is rotated by driven by motor, transfers in turn the timber in described timber material storing box.
Described material toggling mechanism is circumferentially with the runner of some groups of wings.
Described runner has two, and the coaxial-symmetrical setting.
The delivery speed of described apron conveyor is 9m/min, and the delivery speed of described chain-linked conveyer is 24 m/min, and chain pitch is 800mm, and the diff-H of described apron conveyor and described chain-linked conveyer is 200～300mm.
The initiating terminal angled transition of the end of the conveyor surface of described apron conveyor and described chain-linked conveyer conveyor surface.
The upper edge of the described timber outlet of described timber material storing box is provided with the flanging extended to the timber sense of motion, forms the restriction single between described flanging and described material toggling mechanism and passes through the constraint mouth of timber radical.
Described detecting device has two pairs of ccd video camera and the laser rangefinders that are symmetricly set on the lumber conveying device both sides, and described ccd video camera is connected with computing machine with laser rangefinder.
Described laser rangefinder is positioned at the top of described CCD camera.
Also comprise the polymerization slide plate that is arranged on described lumber conveying device end, for guiding timber landing, the gathering through detecting on described lumber conveying device.
Beneficial effect of the present invention:
1. lumber conveying device of the present invention comprises along apron conveyor and the chain-linked conveyer of the adjacent setting of timber throughput direction, and apron conveyor is near the timber material storing box, kind of wood detection equipment is arranged on the middle part of chain-linked conveyer, and the delivery speed of chain-linked conveyer is faster than the delivery speed of apron conveyor, the height of chain-linked conveyer conveyor surface is lower than the height of described apron conveyor conveyor surface, and meet chain-linked conveyer the end from described apron conveyor fall to the last timber of described chain-linked conveyer initial end and next-door neighbour displacement in the interval time that moves between a timber close to the length of N chain pitch.Such setting can guarantee to drop on formation certain intervals setting between adjacent two timber on chain-linked conveyer, and each root timber all can drop on shot, rather than two between pitch chain, thereby the sorting beat that makes apron conveyor can meet the detection beat of chain-linked conveyer, make the whole piece travel line not there will be choking phenomenon, thereby obtain take off data more accurately, improve detection efficiency.
2. the timber exit of timber material storing box of the present invention is provided with material toggling mechanism, and this material toggling mechanism is coaxially arranged and forms by two runners with some groups of wings, and rotates by driven by motor, transfers in turn the timber in the timber material storing box.The present invention is by arranging material toggling mechanism, can push the timber in the timber material storing box on apron conveyor easily, and timber is laterally arranged side by side at apron conveyor, the timber arranging rule, the interval that make to fall on chain-linked conveyer are even, be conducive to like this take pictures metering timber two ends diameter and laser rangefinder of ccd video camera and record timber length, reduce calculation error.
3. the delivery speed of described apron conveyor of the present invention is 9m/min, and the delivery speed of described chain-linked conveyer is 24 m/min, and chain pitch is 800mm, and the diff-H of described apron conveyor and described chain-linked conveyer is 200～300mm.Adopt the delivery speed of this numerical value, basically can guarantee on every pitch chain to only have a timber to fall into, thereby avoided between adjacent two timber affecting because interval is too little detection numerical value, simultaneously dwindled the interval between two timber on to greatest extent again, timber quantity by surveyed area in unit time is increased, improved detection efficiency.
The accompanying drawing explanation
For the content that makes invention is more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is structural representation of the present invention;
Fig. 2 is birds-eye view of the present invention;
Fig. 3 is that check implement arranges schematic diagram;
Fig. 4 is that two logs of operating mode 1 are fallen the structural representation on chain-linked conveyer;
Fig. 5 is that two logs of operating mode 2 are fallen the structural representation on chain-linked conveyer;
Fig. 6 is that three logs of operating mode 3 are fallen the structural representation on chain-linked conveyer;
Fig. 7 is that two logs of operating mode 4 are fallen the structural representation on chain-linked conveyer;
In figure, Reference numeral is expressed as:
1-timber material storing box, the outlet of 11-timber, 12-flanging, 2-apron conveyor, 3-chain-linked conveyer, the 4-check implement, 40-computing machine, 41-CCD pick up camera, 42-laser rangefinder, 43-check implement support, 5-polymerization slide plate, 6-material toggling mechanism, the 60-runner, 61-dials wing, the 7-shot.
The specific embodiment
Referring to Fig. 1-2, timber of the present invention detects gauging device and is particularly suitable for log is measured, and it comprises: timber material storing box 1, lumber conveying device, and detecting device 4, wherein said timber material storing box 1 is provided with timber outlet 11 along the length direction of timber, described lumber conveying device is used for from described timber outlet 11 timber out, being delivered to detection zone, described detecting device 4 is arranged on described lumber conveying device place, for detection of the length of the timber through the surveyed area of described detecting device 4 and the sectional area at two ends, described lumber conveying device in the present embodiment comprises along the apron conveyor 2 of the adjacent setting of timber throughput direction and chain-linked conveyer 3, described apron conveyor 2 arranges near timber material storing box 1, described detecting device 4 is arranged on chain-linked conveyer 3 places, and make the delivery speed of the delivery speed of described chain-linked conveyer 3 faster than described apron conveyor, the height of described chain-linked conveyer 3 conveyor surfaces is lower than the height of described apron conveyor 2 conveyor surfaces, and meet described chain-linked conveyer 3 the end from described apron conveyor 2 fall to the last timber of described chain-linked conveyer 3 initial end and next-door neighbour displacement in the interval time that moves between a timber close to the length of N chain pitch, in the present invention, described chain pitch refers to the distance between the line of centers of adjacent two pitch chains 7.Such setting can guarantee to drop on formation certain intervals setting between adjacent two timber on chain-linked conveyer, and each root timber all can drop on shot 7, rather than two between pitch chain, thereby the sorting beat that makes apron conveyor can meet the detection beat of chain-linked conveyer, make the whole piece travel line not there will be choking phenomenon, can form certain intervals between timber in twos, when timber is by surveyed area like this, can not exert an influence each other, thereby can obtain like this obtaining take off data more accurately, improve detection efficiency simultaneously.At surveyed area, chain-linked conveyer being set in addition, is mainly to have utilized shot 7 two ends of chain-linked conveyer to have projection, and two adjacent projections can limit this regional timber and roll, and are conducive to like this measurement of detecting device.Described apron conveyor 2 in the present embodiment and chain-linked conveyer 3 all adopt motor to drive, and certainly can also adopt other type of drive.
The timber of the described timber material storing box 1 in the present embodiment exports 11 places and is provided with material toggling mechanism 6, and described material toggling mechanism 6, by the driven by motor rotation, transfers to the timber in described timber material storing box 1 in turn.Described material toggling mechanism 6 is circumferentially with the runner 60 of some groups of wings 61.Preferably, described runner 60 has two, and the coaxial-symmetrical setting, and described group of wing 61 is along circumferentially evenly arranging 4.By timber material storing box 1 is set, can be in advance timber be packed in case, like this from timber outlet 11 timber out under the effect of described group of wing 61, comparatively neatly closely laterally side by side, comparatively even to guarantee the interval between timber in twos fallen on described chain-linked conveyer 3, this not only is convenient to detecting device and accurately detects, and owing to being connected in twos comparatively compact between timber, can greatly improve detection efficiency simultaneously.
Adopting detection gauging device of the present invention when measuring log, for the efficiency that improves detection does not affect again the accuracy of detection, optimal method makes on every shot 7 all to only have a log exactly simultaneously.But because the diameter of the log that is stored in customs wharf does not wait from 150mm to 600mm, and the order that successively enters surveyed area is random, so just may occur on shot 7 occurring two or even how with log, or interval more piece chain 7 between two logs, so, affect accuracy in detection, also affect detection efficiency simultaneously.By a large amount of practices and calculating repeatedly, the preferred 9m/min of the delivery speed of the described apron conveyor in the present embodiment, the delivery speed of described chain-linked conveyer is 24 m/min preferably, the preferred 800mm of chain pitch, and the diff-H of described apron conveyor and described chain-linked conveyer is 200～300mm.So, no matter the diameter of log is how many, basically can guarantee on every pitch chain 7 to only have a log, thereby improve accuracy in detection and detection efficiency.Certain concrete numerical value here is optimal case, and the present invention can also set other speed, and this will determine in conjunction with the resolution of concrete log diameter scope and testing equipment.
The initiating terminal angled transition of the end of the conveyor surface of the described apron conveyor 2 in the present embodiment and described chain-linked conveyer 3 conveyor surfaces.This set is mainly for the smooth pulsation-free of log on described apron conveyor 2 is transitioned on described chain-linked conveyer 3.
For the log marshalling that makes described apron conveyor 2 tight, not there will be stacking phenomenon, the upper edge of the described timber outlet 11 of described timber material storing box 1 is provided with the flanging 12 extended to the timber sense of motion, forms the restriction single between described flanging 12 and described material toggling mechanism 6 and passes through the constraint mouth of log radical.
Referring to Fig. 3, the described detecting device 4 in the present embodiment has two pairs of the CCD pick up camera 41 and the laser rangefinders 42 that are symmetricly set on the lumber conveying device both sides, and described CCD pick up camera 41 is connected with computing machine 40 with laser rangefinder 42.Described laser rangefinder 42 is positioned at the top of described CCD pick up camera 41.Described CCD pick up camera 41 records respectively by diameter D1 and the D2 at the two ends of detection zone log; The spacing of described two laser rangefinders is L3, and the First laser rangefinder is L1 apart from the distance of tested log the first end face, and the distance of second tested log the second end face of laser rangefinder distance is L2, length L=the L3-(L1+L2 of tested log); Known by the statistical analysis to log, the geometrical body of log is close to Rotary-table, so the volume of timber of tested log
V=π（D1*D1+D1*D2+D2*D2）L/2
Certainly, because detecting device of the present invention is connected with computing machine 40, as required, can also accurately calculate the quantity of surveyed timber, and surveyed timber is carried out to quality analysis.
The present embodiment also comprises the polymerization slide plate 5 that is arranged on described lumber conveying device end, and described polymerization slide plate 5 is for guiding log landing, the gathering through detecting on described lumber conveying device.Log after detection is assembled in the bottom of described polymerization slide plate 5, so that capture machinery, removes.
Because the log diameter that is stored in customs wharf and harbour mostly is between 150-600mm, for the detection effect of apparatus of the present invention is described more fully, the log of below getting 150mm, two kinds of diameters of 600mm divides four kinds of composite conditions to be elaborated:
Operating mode 1: the diameter of adjacent two logs is 600mm, referring to Fig. 4
First log the required time t1 of apron conveyor in the apron conveyor end to falling
t1=(Do/2)/?V1
In formula: Do---the butt diameter is 600mm;
V1---apron conveyor delivery speed is 9m/min, i.e. 150mm/s;
Therefore t1=2s;
The described apron conveyor of time t2=1s that the consideration log is required from the apron conveyor landing to chain-linked conveyer and the diff-H of described chain-linked conveyer are 200～300mm.Therefore, the first log time required from the landing of apron conveyor end to chain-linked conveyer is just t=t1+t2=3s, thereby the time of 1 two log landings of operating mode is just 6s.
And the chain-linked conveyer delivery speed is 24m/min, i.e. 400mm/s, two log movement space are 3s, therefore chain-linked conveyer operation spacing is 1200 mm, approach 2 chain pitchs, 3 pitch chains.
Operating mode 2: the diameter of adjacent two logs is respectively 150mm, 600mm, referring to Fig. 5
Principle with 1, the first log landing of operating mode to chain-linked conveyer required time t1=3s;
Second log landing is to chain-linked conveyer required time t2=0.5s+1s=1.5s, thereby the time of 2 two log landings of operating mode is just 4.5s.
Two log movement space are 1.5s, therefore chain-linked conveyer operation spacing is 600 mm, approach 1 chain pitch, 2 pitch chains.
Operating mode 3: the diameter of adjacent three logs is 150mm, referring to Fig. 6
Principle is with operating mode 1,
Three logs landing to chain-linked conveyer required time respectively are t1=1.5s, t2=1.5s, t3=1.5s, thereby the time of 3 three log landings of operating mode is just 4.5s.
Between every two logs, movement space is 1.5s, therefore the operation spacing of every two logs on chain-linked conveyer is 600 mm, approaches 2 chain pitchs, 3 pitch chains.
Operating mode 4: the diameter of adjacent two logs is respectively 600mm, 150mm, referring to Fig. 7
Principle is with operating mode 1,
First log landing is to chain-linked conveyer required time t1=1.5s;
Second log landing is to chain-linked conveyer required time t2=3s;
Thereby the time of 4 two log landings of operating mode is just 4.5s.
Between two logs, movement space is 3s, therefore the operation spacing on chain-linked conveyer is 1200 mm, approaches 2 chain pitchs, 3 pitch chains.
From above-mentioned four operating modes, can find out, after only having two logs of operating mode 1 and operating mode 4 to fall on chain-linked conveyer, between the two can two, interval chain pitch.Seeming can be because of the not compact detection efficiency that affects in interval, but in actual testing process, because most timber diameters all is greater than 150mm, and be less than 600mm, basically become normal distribution, and adjacent two log random alignment, thus occur that the possibility of operating mode 1 and operating mode 4 is very little, very micro-on the impact of detection efficiency.
The above-mentioned specific embodiment just is explained in detail technical scheme of the present invention; the present invention has more than and only is confined to above-described embodiment; those skilled in the art should be understood that; the above-mentioned principle of every foundation and the improvement of spirit on basis of the present invention, substitute, all should be within protection scope of the present invention.
Claims (10)
1. a timber detects gauging device, comprising:
Timber material storing box (1), described timber material storing box (1) is provided with timber outlet (11) along the length direction of timber;
Lumber conveying device, described lumber conveying device is for being delivered to detection zone from described timber, exporting (11) timber out;
Detecting device (4), be arranged on described lumber conveying device place, for detection of the length of the described timber through described detecting device (4) and the sectional area at two ends;
It is characterized in that: described lumber conveying device comprises along the apron conveyor of the adjacent setting of timber throughput direction (2) and chain-linked conveyer (3), described apron conveyor (2) arranges near timber material storing box (1), described detecting device (4) is arranged on chain-linked conveyer (3) and locates, and the delivery speed of described chain-linked conveyer (3) is faster than the delivery speed of described apron conveyor, the height of described chain-linked conveyer (3) conveyor surface is lower than the height of described apron conveyor (2) conveyor surface, and meet described chain-linked conveyer (3) the end from described apron conveyor (2) fall to the last timber of described chain-linked conveyer (3) initial end and next-door neighbour displacement in the interval time that moves between a timber close to the length of N chain pitch.
2. a kind of timber according to claim 1 detects gauging device, it is characterized in that: the timber outlet (11) of described timber material storing box (1) locates to be provided with material toggling mechanism (6), described material toggling mechanism (6), by the driven by motor rotation, transfers to the timber in described timber material storing box (1) in turn.
3. a kind of timber according to claim 2 detects gauging device, it is characterized in that: described material toggling mechanism (6) is for circumferentially with the runner (60) of some groups of wings (61).
4. a kind of timber according to claim 3 detects gauging device, and it is characterized in that: described runner (60) has two, and the coaxial-symmetrical setting.
5. detect gauging device according to the described a kind of timber of any claim of claim 1-4, it is characterized in that: the delivery speed of described apron conveyor is 9m/min, the delivery speed of described chain-linked conveyer is 24 m/min, chain pitch is 800mm, and the diff-H of described apron conveyor and described chain-linked conveyer is 200～300mm.
6. a kind of timber according to claim 1 detects gauging device, it is characterized in that: the initiating terminal angled transition of the end of the conveyor surface of described apron conveyor (2) and described chain-linked conveyer (3) conveyor surface.
7. a kind of timber according to claim 6 detects gauging device, it is characterized in that: the upper edge of the described timber outlet (11) of described timber material storing box (1) is provided with the flanging (12) extended to the timber sense of motion, forms the restriction single between described flanging (12) and described material toggling mechanism (6) by the constraint mouth of timber radical.
8. detect gauging device according to the described a kind of timber of any claim of claim 1-7, it is characterized in that: described detecting device (4) has two pairs of ccd video camera (41) and the laser rangefinders (42) that are symmetricly set on the lumber conveying device both sides, and described ccd video camera (41) is connected with computing machine (40) with laser rangefinder (42).
9. the described a kind of timber of any claim detects gauging device according to Claim 8, and it is characterized in that: described laser rangefinder (42) is positioned at the top of described ccd video camera (41).
10. detect gauging device according to the described a kind of timber of any claim of claim 1-9, it is characterized in that: also comprise the polymerization slide plate (5) that is arranged on described lumber conveying device end, for guiding timber landing, the gathering through detecting on described lumber conveying device.
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| CN107192332A (en) * | 2017-06-30 | 2017-09-22 | 南京林恒机械制造有限公司 | A kind of log detection metering device |
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| CN107192332A (en) * | 2017-06-30 | 2017-09-22 | 南京林恒机械制造有限公司 | A kind of log detection metering device |
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