CN104070785B - Transfer belt code-bar image speed limit acquisition system - Google Patents

Abstract

Transfer belt code-bar image speed limit acquisition system of the present invention belongs to IMAQ servicing unit field when adopting machine vision technique identification transfer belt coding, and this system comprises transfer belt storage support, transfer belt position-limit mechanism, shooting platform, elementary speed limiting mechanism, speed limit hose coiling mechanism and regulating wheel.The core component of speed limit hose coiling mechanism can automatically discharge the Overload torque on power transmission shaft and reset, thus indirectly maximum on reel of restriction transfer belt coils speed, elementary speed limiting mechanism and speed limit hose coiling mechanism with the use of, can control the speed limit that transfer belt is run, the transfer belt code-bar image that camera was photographed can not produce fuzzy because movement velocity is too fast.This system carries out speed regulating control without the need to automatically controlled rate feedback system or to motor, just can under the highest mean speed state the continuous steady operation of fluctuating acceleration periodically, speeds control demand under making it meet special detection occasion, improves operating efficiency and cost-saving substantially.

Description

Transfer belt code-bar image speed limit acquisition system

Technical field

The invention belongs to IMAQ servicing unit field when adopting machine vision technique identification transfer belt coding, be specifically related to a kind of transfer belt code-bar image speed limit acquisition system.

Background technology

Transfer belt belongs to the continuous flexible material that can coil, and usually uses reel to coil.Transfer belt after caloric transfer printing technology process while having printed the coding that dispatches from the factory on imprinting product, with its corresponding consistent transparent transfer printing code-bar of encoding that dispatches from the factory under transfer belt self lower surface then remains, in transfer belt, continuous print transfer printing code-bar is generated by heat and pressure continuously transfer printing by mechanical code-disc, because the high bit code of code-disc infrequently uses, frame for movement flexibility is poor, therefore occasional produces and leaks code, repeat or the mistake such as smudgy, this mistake is once produce, then can embody on the product export coding of transfer belt code-bar and correspondence thereof simultaneously simultaneously.At present, usually by manually checking transfer belt code-bar one by one with naked eyes, or, check the code clerk that dispatches from the factory of product one by one with naked eyes, but the efficiency of hand inspection is very low, easily causes visual fatigue, is also difficult to avoid artificial careless omission.

Text region algorithm based on machine vision technique has been ripe industrial detection method, and it can carry out text location and segmentation according to the feature of character image, uses recognition principle classify to word and mate, to reach the object of identification.In theory, industrial camera is used to take piece image respectively to the transparent transfer printing code-bar of each in transfer belt, namely complete identification by follow-up machine vision technique to the transfer belt transfer printing code-bar on this image to extract and error checking, complete rapidly the error code to transfer belt and the detection screening process of leaking code.

It is general both as coiled body that device coiled by existing flexible material, simultaneously the double driving mechanism coiling power again.If but use such conventional disc winding apparatus to coil device directly as transfer belt, transfer belt then can be caused along with coiling coiling continuously of driving mechanism, its coil diameters also constantly increases, the speed that transfer printing code-bar in transfer belt sequentially passes through from camera lens synchronously increases, finally can cause camera cannot capture by constant shutter frequency its current immediately below transfer printing code-bar, but the linkage section of two adjacent code-bars may be photographed, or the image that can only photograph with fuzzy ghost, and then cause follow-up character-recognition errors.

On the other hand, theoretically, the position of contactless position checkout gear to transfer printing code-bar can be used to detect, and accurately control the shutter triggered time of industrial camera accordingly, camera can be made just can to capture the transfer printing code-bar passed through below current lens.But this requires that again contactless position checkout gear can not stop the light path of camera, along the transmission direction of transfer belt, thus can not stop and affect the even running of transfer belt simultaneously.If lack the posture adjustment platform that ad-hoc location can be provided to adjust relation, the modes of emplacement of the shooting visual field of camera then can only be prepended to according to checkout gear, but in this mode, when checkout gear is subject to the triggering of current code-bar, camera synchronization receives and triggers and take the scenery in current field, but now, the code-bar of detection trigger device likely not yet enters among the visual field of camera, there is mistake in the image producing shooting thus, finally cause Machine Vision Recognition Technology correctly cannot take pictures to the transfer printing code-bar in transfer belt and identify in sequential.

In addition, traditional revolution speed control system generally all uses complicated and the automatically controlled rate feedback system of costliness or motor speed control device, only cannot rely on the simple and effective mechanical device just continuous steady operation of fluctuating acceleration periodically under the highest mean speed state.

How to design and aly both can carry out speeds control to coiling device, camera can be made again to complete the continuous camera system to transfer belt code-bar by correct sequential, thus make to become in transfer belt code identification field successful Application the technical barrier urgently overcome based on machine vision technique.

Summary of the invention

In order to solve the existing double coiled body coiling driving power resources simultaneously, transfer belt is along with coiling coiling continuously of driving mechanism, its coil diameters also constantly increases, the speed causing the transfer printing code-bar in transfer belt to sequentially pass through from camera lens synchronously increases, finally can cause camera cannot capture by given shutter frequency its current immediately below transfer printing code-bar, but the image that may photograph with fuzzy ghost, and then the follow-up character recognition based on machine vision technique is caused to occur mistake.

Traditional revolution speed control system generally all uses complicated and the automatically controlled rate feedback system of costliness or motor speed control device, only cannot rely on the simple and effective mechanical device just continuous steady operation of fluctuating acceleration periodically under the highest mean speed state.

Use the method for contactless position checkout gear auxiliary triggering camera shutter, lack the posture adjustment platform that ad-hoc location can be provided to adjust relation, if be prepended to the modes of emplacement of the shooting visual field of camera according to checkout gear, mistake is there is in the image of shooting in sequential, the linkage section of two adjacent code-bars may be photographed, thus cannot directly apply to the identification operation of transfer belt transfer printing code-bar.These all directly cause the Text region means based on machine vision technique cannot directly apply to the technical problem in transfer belt code identification field, the invention provides a kind of transfer belt code-bar image speed limit acquisition system.

The technical scheme that technical solution problem of the present invention is taked is as follows:

Transfer belt code-bar image speed limit acquisition system, comprise transfer belt storage support, transfer belt position-limit mechanism, shooting platform, elementary speed limiting mechanism, speed limit hose coiling mechanism and regulating wheel, described transfer belt storage support comprises a font support, store roller and auxiliary adjustment roller, the madial wall of two columns of door font support is respectively equipped with the storage roller draw-in groove of opening obliquely upward, the top of described two columns is connected by axostylus axostyle; The roller both sides storing roller are respectively equipped with minor axis, and two minor axises are identical, and their length is less than the degree of depth storing roller draw-in groove; The axial length storing its roller of roller is less than a spacing for font support two columns; Described auxiliary adjustment roller comprises the runing rest of rectangle and auxiliary pressure roller; Runing rest comprises two identical spiral arms, and the forward and backward two ends of described spiral arm are respectively equipped with axis hole, and the two ends of auxiliary pressure roller connect with the front end axis hole axle of runing rest two spiral arms respectively, and the other end of described two spiral arms connects with axostylus axostyle axle respectively; The lower end storing roller draw-in groove is identical with the length of auxiliary pressure roller to the distance of axostylus axostyle axis;

Described transfer belt position-limit mechanism comprises altitude location wheel, direction groove and pressure wheel, the diameter of pressure wheel and highly all take turns identical with altitude location, the parallel and horizontal positioned of axis both it; The two ends of direction groove are uncovered, and the floor height of its groove is identical with the external diameter minimum point that altitude location is taken turns, and the open at both ends of direction groove is taken turns with altitude location respectively and pressure wheel is alignd;

Shooting platform comprises adjusting pole, picking sensor pose adjustment seat, camera pose adjustment seat, illuminating bracket, transfer belt stabilizing mechanism, light source, picking sensor and camera, adjusting pole is respectively equipped with the two chute of camera pose adjustment vertically and the two chute of picking sensor pose adjustment, the two chute of camera pose adjustment is positioned at the top of the two chute of picking sensor pose adjustment, identical both it; Described camera pose adjustment seat comprises contiguous block, connecting screw rod and two positioning screws, and contiguous block and two positioning screws are connected on former and later two end faces of contiguous block respectively;

Described picking sensor pose adjustment seat comprises riser, two picking sensor mount pads and two picking sensor pose adjustment bolts, the sidewall of riser is provided with horizontal concrete chute, two picking sensor mount pads are coplanar and be all positioned at the homonymy of riser, they are vertical respectively and be fixed on the two ends of riser, its three in one is shaping, and is encircled into a concave shape structure; Described two picking sensor pose adjustment bolts are passed the left and right chute of horizontal concrete chute and the two chute of picking sensor pose adjustment in turn and are connected by nut and adjusting pole;

Described illuminating bracket comprises light source supporting base and four identical columns, and four column tops are equipped with screw, and their lower end is fixed in same level with adjusting pole respectively; Light source supporting base is connected with the stage casing of four columns respectively;

Described transfer belt stabilizing mechanism comprises two concave shape thin plates, two Screws and two screw gaskets, and two concave shape thin plates are identical, and the front end of the concave shape cantilever of thin plate is respectively equipped with little screw, described Screw and screw gasket one_to_one corresponding; Four cantilevers of two concave shape thin plates align between two and are clipped in the middle by two screw gaskets, Screw in turn through the little screw of upper strata concave shape thin plate, screw gasket and lower floor's concave shape thin plate little screw and be threaded with screw; Camera is positioned at the top of transfer belt stabilizing mechanism, and camera is threaded with connecting screw rod by the radial screw on its sidewall, and two positioning screws are each passed through the left and right chute of the two chute of camera pose adjustment, and are connected by nut and adjusting pole; The picking sensor mount pad that the transmitter of picking sensor and receiver are corresponding with one is respectively connected, and the transmitting terminal of transmitter and the receiving terminal of receiver are toward each other; Described illuminating bracket is positioned at inside the concave shape structure of picking sensor pose adjustment seat, and the lower surface of light source is fixed on light source supporting base;

Two chutes on the two chute of described camera pose adjustment or the two chute of picking sensor pose adjustment are made up of parallel to each other two rectangular through holes, and the axis of described rectangular through hole is identical with the axis of connecting screw rod;

Described column comprises multiple little copper post, and the front end of little copper post is stud, and end is screw; Described column is formed by connecting by multiple little copper post head and the tail; By increasing or reduce four little studs in same aspect, the level height of light source supporting base or transfer belt stabilizing mechanism can be adjusted respectively;

Elementary speed limiting mechanism comprises speed limit motor, the first pressure roller supporting base, the right supporting base of the second pressure roller, active roll, driven running roller and two extension springs, the center of the second pressure roller supporting base is provided with the second active roll bearing, the right side of the lateral wall of the second pressure roller supporting base hypomere is provided with the second extension spring holder, and the upper surface of the second pressure roller supporting base is provided with the second driven running roller locating slot; The center of the first pressure roller supporting base is provided with the first active roll bearing, and the right side of the lateral wall of the second pressure roller supporting base hypomere is provided with the first extension spring holder, and the upper surface of the second pressure roller supporting base is provided with the second driven running roller locating slot; Active roll comprises active roll mandrel and the first rubber wheel, is coaxially connected both it; Driven running roller comprises driven voller wheel mandrel and driven voller wheel sleeve, and the stage casing of driven voller wheel mandrel is also fixed with two driven voller wheel bearings respectively, and the two ends of driven voller wheel sleeve are connected with the outer ring of a driven voller wheel bearing respectively and form rolling width; Driven voller wheel sleeve appearance surface cover has the second rubber wheel; The total length of driven voller wheel mandrel is greater than the spacing of the right supporting base of first pressure roller supporting base distance the second pressure roller, the outer wall spacing of two driven voller wheel bearing is identical with the spacing of the right supporting base of first pressure roller supporting base distance the second pressure roller, and running roller mandrel is through outward extending shaft part after driven voller wheel bearing inner ring being arranged with two plane machinings parallel to each other; Second driven running roller locating slot comprises the second rotating shaft holddown groove and the second maintenance support slot, and the second rotating shaft holddown groove and the second maintenance support slot are the horizontal groove of the rectangle running through the second pressure roller supporting base sidewall, and its latter is darker than the former; First driven running roller locating slot comprises the first rotating shaft holddown groove and the first maintenance support slot, and the first rotating shaft holddown groove and the first maintenance support slot are the horizontal groove of the rectangle running through the first pressure roller supporting base sidewall, and its latter is darker than the former;

The symmetrical configuration of the first pressure roller supporting base and the second pressure roller supporting base; The two ends of active roll are rotationally connected with the first active roll bearing and the second active roll bearing respectively, and the two ends of driven voller wheel mandrel are supported by the first maintenance support slot and the second maintenance support slot respectively; Lower end and the second extension spring holder of an extension spring are connected, and the axle head that mandrel taken turns by its other end and driven voller is connected; Lower end and the first extension spring holder of another extension spring are connected, and the axle head that mandrel taken turns by its other end and driven voller is connected; Active roll mandrel is connected by shaft coupling and speed limit motor coaxle;

Speed limit reel comprises dropout speed limiting mechanism, driving mechanism and magnetic force reel, and driving mechanism comprises reel motor and reel shaft coupling; Dropout speed limiting mechanism comprises the first driving shaft, the second driving shaft, groups of springs, spring at front end seat, spring rear end seat, pressure adjusting nut, key and multiple spring holder; First driving shaft comprises polished rod, baffle plate, screw rod and drive shaft hole, and polished rod and screw rod are coaxially fixed on the both sides of baffle plate respectively, and its three in one is shaping; Drive shaft hole is positioned at the top of screw rod, and its madial wall is provided with the first keyway vertically;

Described spring at front end seat comprises active friction wheel disc and bearing pin, and bearing pin is coaxially fixed on the front end face of active friction wheel disc, one-body molded both it; The lateral wall of bearing pin is provided with the second keyway vertically; Multiple spring holder is coaxially connected on the rear side end face of active friction wheel disc by identical angle of circumference; Multiple spring holder is coaxially connected on the rear side end face of spring rear end seat by identical angle of circumference; Second driving shaft comprises driven friction wheel disc and spool spindle, and spool spindle is coaxially fixed on the rear side end face of driven friction wheel disc, one-body molded both it; Spring rear end seat is circular ring structure, and the external diameter of annulus is identical with active friction wheel disc, and the madial wall of annulus is smooth; Groups of springs comprises many springs, and each described spring is identical, and the two ends of spring are enclosed within a spring holder respectively;

The screw rod of described first driving shaft is in turn through pressure adjusting nut and spring rear end seat, pressure adjusting nut is connected with screw flight, one end of spring rear end seat is connected with pressure adjusting nut, its other end is connected with one end of groups of springs, and the other end of groups of springs is connected with the front end face of active friction wheel disc; Bearing pin is inserted into drive shaft hole inside, and the first keyway is connected with the second keyway by key; Magnetic force reel comprises reel baffle plate, reel mandrel and mandrel pressing plate, and its three is coaxially connected in turn, and the rear end face of reel mandrel is provided with groove radially, and mandrel pressing plate embeds in groove;

The line shaft of described reel motor is connected with the polished rod of the first driving shaft by reel shaft coupling, and the front end face of active friction wheel disc is connected with the front end face of driven friction wheel disc, and reel the tip of the axis and magnetic force reel are coaxially connected;

Described multiple spring holder is six, and three spring holders are connected on the rear side end face of active friction wheel disc by the angle of circumference interval of degree respectively, and other three spring holders are connected on the rear side end face of spring rear end seat by identical mode; Described active friction wheel disc is provided with three counterbore screws, and they press the angle of circumference of degree respectively uniformly at intervals on the rear side end face of active friction wheel disc; Described spring rear end seat is also provided with identical three counterbore screws with counterbore screw; Described six spring holders are bolt, and they are connected with three counterbore screws on three counterbore screws or spring rear end seat with the form be threaded;

Be provided with magnetic patch in described groove, mandrel pressing plate is ferromagnetic material, and described magnetic patch and mandrel pressing plate are connected by magnetic force; Groups of springs can be replaced by a large torsion spring, and this torsion spring is directly enclosed within position corresponding with groups of springs on screw rod, and the two ends of torsion spring are connected with spring rear end seat and active friction wheel disc respectively;

Transfer belt storage support, transfer belt position-limit mechanism, shooting platform, elementary speed limiting mechanism, regulating wheel and speed limit hose coiling mechanism are fixed in same level in turn, and the height value of the height value and column distance horizontal plane that store the lower end distance horizontal plane of roller draw-in groove is all greater than the height value of the groove bottom distance horizontal plane of direction groove; Riser is in the horizontal direction to the lopsidedness at transfer belt storage support place; The diameter of regulating wheel is less than the diameter of active roll, and the rotating shaft height of regulating wheel is also less than the rotating shaft height of active roll; Reel mandrel is identical with the diameter of active roll, and the rotating shaft height of reel mandrel is greater than the rotating shaft height of driven running roller; Store the opening direction of roller draw-in groove on door font support contrary relative to the direction at door font support place with transfer belt position-limit mechanism.

The invention has the beneficial effects as follows: picking sensor pose adjustment seat and camera pose adjustment seat with the use of, the detection light belt that picking sensor can be made to send stably projects in transfer belt with special inclination angle, under this obliquity and attitude, the shooting visual field that picking sensor not only can not stop camera simultaneously but also do not disturb the level run of transfer belt, avoid the timing error that the triggering shutter that causes in viewing field of camera because of leading sensor is not corresponding with the code-bar photographed, or only photograph the linkage section of two adjacent code-bars.Elementary speed limiting mechanism and speed limit hose coiling mechanism with the use of, the speed limit that transfer belt is run can be controlled, make camera can capture according to correct frequency its current immediately below transfer printing code-bar, the transfer belt code-bar image photographed also can not produce fuzzy because movement velocity is too fast.

Speed limit hose coiling mechanism is based on the speed limiting function of theory of mechanics, its core component can automatically discharge the Overload torque on power transmission shaft and reset, thus indirectly limit maximum the coil speed of flexible material on reel such as transfer belt, and then the interval that the speed of coiling of transfer belt is being no more than limit velocity is periodically changed, the speeds control demand under making it meet special detection occasion.

In addition, this transfer belt code-bar image speed limit acquisition system is without the need to automatically controlled rate feedback system, also without the need to carrying out speed regulating control to drive motors, its only rely on simple and effective mechanical device just can under the highest mean speed state the continuous steady operation of fluctuating acceleration periodically, improve operating efficiency substantially and saved cost.

Accompanying drawing explanation

Fig. 1 is the stereogram of transfer belt code-bar image speed limit acquisition system of the present invention;

Fig. 2 is the front view of Fig. 1;

Fig. 3 is the stereogram of transfer belt storage support in the present invention;

Fig. 4 is the explosive view of Fig. 3;

Fig. 5 is the stereogram of transfer belt position-limit mechanism in the present invention;

Fig. 6 is the stereogram of shooting platform in the present invention;

Fig. 7 is the explosive view of Fig. 6;

Fig. 8 is the stereogram of camera pose adjustment seat in the present invention;

Fig. 9 is the stereogram of adjusting pole in the present invention;

Figure 10 is the explosive view of adjusting pole picking sensor and picking sensor pose adjustment seat in the present invention;

Figure 11 is the explosive view of illuminating bracket in the present invention, light source and transfer belt stabilizing mechanism;

Figure 12 is the explosive view of transfer belt stabilizing mechanism in the present invention;

Figure 13 is the stereogram of elementary speed limiting mechanism in the present invention;

Figure 14 is the explosive view in the present invention under another visual angle of elementary speed limiting mechanism;

Figure 15 is the front view of the right supporting base of the second pressure roller in the present invention;

Figure 16 is the stereogram of regulating wheel in the present invention;

Figure 17 is the stereogram of speed limit hose coiling mechanism in the present invention;

Figure 18 is the explosive view in the present invention under another visual angle of speed limit hose coiling mechanism;

Figure 19 is the stereogram of driving mechanism and dropout speed limiting mechanism in the present invention;

Figure 20 is the explosive view of speed limiting mechanism of threading off in the present invention;

Figure 21 is the stereogram of the first driving shaft in the present invention;

Figure 22 is the axial sectional view of Figure 21;

Figure 23 is the stereogram of spring at front end seat in the present invention;

Figure 24 is the stereogram of the second driving shaft in the present invention;

Figure 25 is the stereogram of reel mandrel in the present invention.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention is described in further details.

As shown in Fig. 1 to Figure 25, transfer belt code-bar image speed limit acquisition system of the present invention, comprise transfer belt storage support 1, transfer belt position-limit mechanism 2, shooting platform 3, elementary speed limiting mechanism 4, speed limit hose coiling mechanism 5 and regulating wheel 6, transfer belt storage support 1 comprises a font support 1-1, store roller 1-2 and auxiliary adjustment roller 1-3, the madial wall of two columns of door font support 1-1 is respectively equipped with the storage roller draw-in groove 1-1-1 of opening obliquely upward, the top of two columns is connected by axostylus axostyle 1-1-2.The roller both sides storing roller 1-2 are respectively equipped with minor axis, and two minor axises are identical, and their length is less than the degree of depth storing roller draw-in groove 1-1-1; The axial length storing its roller of roller 1-2 is less than a spacing for font support 1-1 two columns; Auxiliary adjustment roller 1-3 comprises the runing rest 1-3-1 of rectangle and auxiliary pressure roller 1-3-2; Runing rest 1-3-1 comprises two identical spiral arms, the forward and backward two ends of spiral arm are respectively equipped with axis hole, the two ends of auxiliary pressure roller 1-3-2 connect with the front end axis hole axle of runing rest 1-3-1 two spiral arms respectively, and the other end of two spiral arms connects with axostylus axostyle 1-1-2 axle respectively; The lower end storing roller draw-in groove 1-1-1 is identical with the length of auxiliary pressure roller 1-3-2 to the distance of axostylus axostyle 1-1-2 axis.

Transfer belt position-limit mechanism 2 comprise altitude location wheel 2-1, direction groove 2-2 and pressure wheel 2-3, pressure wheel 2-3 diameter and highly all take turns 2-1 with altitude location identical, the parallel and horizontal positioned of axis both it.The two ends of direction groove 2-2 are uncovered, and the external diameter minimum point that floor height and the altitude location of its groove take turns 2-1 is identical, and the open at both ends of direction groove 2-2 is taken turns 2-1 and pressure wheel 2-3 with altitude location respectively and alignd.

Shooting platform 3 comprises adjusting pole 3-1, picking sensor pose adjustment seat 3-2, camera pose adjustment seat 3-3, illuminating bracket 3-4, transfer belt stabilizing mechanism 3-5, light source 3-6, picking sensor 3-7 and camera 3-8, light source 3-6 is LDL-TP type backlight transmission LED light source, camera 3-8 adopts DMK22BUC03 type industrial camera, picking sensor 3-7 is LV-NH300 type picking sensor, and it comprises transmitter 7-2 and receiver 7-1.Adjusting pole 3-1 is respectively equipped with the two chute 3-1-1 of camera the pose adjustment vertically and two chute 3-1-2 of picking sensor pose adjustment, the two chute 3-1-1 of camera pose adjustment is positioned at the top of the two chute 3-1-2 of picking sensor pose adjustment, identical both it; Camera pose adjustment seat 3-3 comprises contiguous block 3-3-1, a connecting screw rod 3-3-2 and two positioning screw 3-3-3, and contiguous block 3-3-1 and two positioning screw 3-3-3 is connected on former and later two end faces of contiguous block 3-3-1 respectively.

Picking sensor pose adjustment seat 3-2 comprises riser 3-2-1, two picking sensor mount pad 3-2-2 and two picking sensor pose adjustment bolt 3-2-3, the sidewall of riser 3-2-1 is provided with horizontal concrete chute 3-2-1-1, two picking sensor mount pad 3-2-1 are coplanar and be all positioned at the homonymy of riser 3-2-1, they are vertical respectively and be fixed on the two ends of riser 3-2-1, its three in one is shaping, and is encircled into a concave shape structure.Two picking sensor pose adjustment bolt 3-2-3 are passed the left and right chute of horizontal concrete chute 3-2-1-1 and the two chute 3-1-2 of picking sensor pose adjustment in turn and are connected by nut and adjusting pole 3-1; Illuminating bracket 3-4 comprises light source supporting base 3-4-2 and four identical column 3-4-1, and four column 3-4-1 tops are equipped with screw 3-4-1-1, and their lower end is fixed in same level with adjusting pole 3-1 respectively; Light source supporting base 3-4-2 is connected with the stage casing of four column 3-4-1 respectively.

Transfer belt stabilizing mechanism 3-5 comprises two concave shape thin plate 3-5-1, two Screw 3-5-2 and two screw gasket 3-5-3, two concave shape thin plate 3-5-1 are identical, the front end of the concave shape cantilever of thin plate 3-5-1 is respectively equipped with little screw 3-5-1-1, Screw 3-5-2 and screw gasket 3-5-3 one_to_one corresponding.Four cantilevers of two concave shape thin plate 3-5-1 align between two and are clipped in the middle by two screw gasket 3-5-3, and Screw 3-5-2 is threaded with screw 3-4-1-1 through little screw 3-5-1-1, the screw gasket 3-5-3 of upper strata concave shape thin plate 3-5-1 and the little screw 3-5-1-1 of lower floor concave shape thin plate 3-5-1 in turn; Two concave shape thin plate 3-5-1 are parallel to each other, and they are laminated to each other with identical attitude and are clipped in the middle by two screw gasket 3-5-3, make two concave shape side arms of transfer belt stabilizing mechanism 3-5 form double panel structure with crack respectively.

Camera 3-8 is positioned at the top of transfer belt stabilizing mechanism 3-5, camera 3-8 is threaded with connecting screw rod 3-3-2 by the radial screw on its sidewall, two positioning screw 3-3-3 are each passed through the left and right chute of the two chute 3-1-1 of camera pose adjustment, and are connected by nut and adjusting pole 3-1; The picking sensor mount pad 3-2-2 that the transmitter 3-7-2 of picking sensor 3-7 and receiver 3-7-1 is corresponding with one is respectively connected, and the transmitting terminal of transmitter 3-7-2 and the receiving terminal of receiver 3-7-1 are toward each other; Illuminating bracket 3-4 is positioned at inside the concave shape structure of picking sensor pose adjustment seat 3-2, and the lower surface of light source 3-6 is fixed on light source supporting base 3-4-2; Two picking sensor mount pad 3-2-1 place planes and transfer belt stabilizing mechanism 3-5 place plane are certain inclination angle; The angle at this inclination angle freely can adjust, to make picking sensor pose adjustment seat 3-2 cannot block the camera lens visual field of camera 3-8 according to the demand of shooting attitude.

Two chutes on the two chute 3-1-1 of camera pose adjustment or the two chute 3-1-2 of picking sensor pose adjustment are made up of parallel to each other two rectangular through holes, and the axis of rectangular through hole is identical with the axis of connecting screw rod 3-3-2.Column 3-4-1 comprises multiple little copper post, and the front end of little copper post is stud, and end is screw; Column 3-4-1 is formed by connecting by multiple little copper post head and the tail.By increasing or reduce four little studs in same aspect, the level height of light source supporting base 3-4-2 or transfer belt stabilizing mechanism 3-5 can be adjusted respectively.

Elementary speed limiting mechanism 4 comprises speed limit motor 4-1, the first pressure roller supporting base 4-2, the second pressure roller right supporting base 4-3, active roll 4-4, a driven running roller 4-5 and two extension spring 4-6, the center of the second pressure roller supporting base 4-3 is provided with the second active roll bearing 4-3-1, the right side of the lateral wall of the second pressure roller supporting base 4-3 hypomere is provided with the second extension spring holder 4-3-2, and the upper surface of the second pressure roller supporting base 4-3 is provided with the second driven running roller locating slot 4-3-3; The center of the first pressure roller supporting base 4-2 is provided with the first active roll bearing 4-2-1, the right side of the lateral wall of the second pressure roller supporting base 4-3 hypomere is provided with the first extension spring holder 4-2-2, and the upper surface of the second pressure roller supporting base 4-3 is provided with the second driven running roller locating slot 4-2-3.Active roll 4-4 comprises active roll mandrel 4-4-1 and the first rubber wheel 4-4-2, is coaxially connected both it; Driven running roller 4-5 comprises driven voller wheel mandrel 4-5-1 and driven voller wheel sleeve 4-5-2, the stage casing of driven voller wheel mandrel 4-5-1 is also fixed with two driven voller wheel bearing 4-5-1-1 respectively, and the two ends of driven voller wheel sleeve 4-5-2 are connected with the outer ring of a driven voller wheel bearing 4-5-1-1 respectively and form rolling width; Driven voller wheel sleeve 4-5-2 appearance surface cover has the second rubber wheel.The total length of driven voller wheel mandrel 4-5-1 is greater than the spacing of the right supporting base 4-3 of first pressure roller supporting base 4-2 distance the second pressure roller, the outer wall spacing of two driven voller wheel bearing 4-5-1-1 is identical with the spacing of first pressure roller supporting base 4-2 distance the second pressure roller right supporting base 4-3, and running roller mandrel 4-5-1 is through outward extending shaft part after driven voller wheel bearing 4-5-1-1 inner ring being arranged with two plane machining 4-5-1-1 parallel to each other.Second driven running roller locating slot 4-3-3 comprises the second rotating shaft holddown groove 4-3-3-1 and second maintenance support slot 4-3-3-2, second rotating shaft holddown groove 4-3-3-1 and second maintenance support slot 4-3-3-2 is the horizontal groove of the rectangle running through the second pressure roller supporting base 4-3 sidewall, and its latter is darker than the former; First driven running roller locating slot 4-2-3 comprises the first rotating shaft holddown groove 4-2-3-1 and first maintenance support slot 4-2-3-2, first rotating shaft holddown groove 4-2-3-1 and first maintenance support slot 4-2-3-2 is the horizontal groove of the rectangle running through the first pressure roller supporting base 4-2 sidewall, and its latter is darker than the former.

The symmetrical configuration of the first pressure roller supporting base 4-2 and the second pressure roller supporting base 4-3, the two ends of active roll 4-4 are rotationally connected with the first active roll bearing 4-2-1 and the second active roll bearing 4-3-1 respectively, and the two ends of driven voller wheel mandrel 4-5-1 are supported by the first maintenance support slot 4-2-3-2 and second maintenance support slot 4-3-3-2 respectively.Lower end and the second extension spring holder 4-3-2 of an extension spring 4-6 are connected, and the axle head that mandrel 4-5-1 taken turns by its other end and driven voller is connected; Lower end and the first extension spring holder 4-2-2 of another extension spring 4-6 are connected, and the axle head that mandrel 4-5-1 taken turns by its other end and driven voller is connected; Active roll mandrel 4-4-1 is coaxially connected by shaft coupling and speed limit motor 4-1.

Speed limit reel 5 comprises dropout speed limiting mechanism 5-1, driving mechanism 5-2 and magnetic force reel 5-3, driving mechanism 5-2 comprise reel motor 5-2-1 and reel shaft coupling 5-2-2; Dropout speed limiting mechanism 5-1 comprises the first driving shaft 5-1-1, the second driving shaft 5-1-2, groups of springs 5-1-3, spring at front end seat 5-1-4, spring rear end seat 5-1-5, pressure adjusting nut 5-1-6, key 5-1-7 and multiple spring holder 5-1-8.First driving shaft 5-1-1 comprises polished rod 5-1-1-1, baffle plate 5-1-1-2, screw rod 5-1-1-3 and drive shaft hole 5-1-1-4, and polished rod 5-1-1-1 and screw rod 5-1-1-3 is coaxially fixed on the both sides of baffle plate 5-1-1-2 respectively, and its three in one is shaping; Drive shaft hole 5-1-1-4 is positioned at the top of screw rod 5-1-1-3, and its madial wall is provided with the first keyway 5-1-1-4-1 vertically.

Spring at front end seat 5-1-4 comprises active friction wheel disc 5-1-4-1 and bearing pin 5-1-4-2, and bearing pin 5-1-4-2 is coaxially fixed on the front end face of active friction wheel disc 5-1-4-1, one-body molded both it; The lateral wall of bearing pin 5-1-4-2 is provided with the second keyway 5-1-4-2-1 vertically.Multiple spring holder 5-1-8 is coaxially connected on the rear side end face of active friction wheel disc 5-1-4-1 by identical angle of circumference; Multiple spring holder 5-1-8 is coaxially connected on the rear side end face of spring rear end seat 5-1-5 by identical angle of circumference; Second driving shaft 5-1-2 comprises driven friction wheel disc 5-1-2-1 and spool spindle 5-1-2-2, and spool spindle 5-1-2-2 is coaxially fixed on the rear side end face of driven friction wheel disc 5-1-2-1, one-body molded both it; Spring rear end seat 5-1-5 is circular ring structure, and the external diameter of annulus is identical with active friction wheel disc 5-1-4-1, and the madial wall of annulus is smooth; Groups of springs 5-1-3 comprises many springs, each spring identical, the two ends of spring are enclosed within a spring holder 5-1-8 respectively.

The screw rod 5-1-1-3 of the first driving shaft 5-1-1 is in turn through pressure adjusting nut 5-1-6 and spring rear end seat 5-1-5, pressure adjusting nut 5-1-6 is threaded with screw rod 5-1-1-3, one end of spring rear end seat 5-1-5 is connected with pressure adjusting nut 5-1-6, its other end is connected with one end of groups of springs 5-1-3, and the other end of groups of springs 5-1-3 is connected with the front end face of active friction wheel disc 5-1-4-1.It is inner that bearing pin 5-1-4-2 is inserted into drive shaft hole 5-1-1-4, and the first keyway 5-1-1-4-1 is connected with the second keyway 5-1-4-2-1 by key 5-1-7; Magnetic force reel 5-3 comprises reel baffle plate 5-3-3, reel mandrel 5-3-2 and mandrel pressing plate 5-3-1, and its three is coaxially connected in turn, and the rear end face of reel mandrel 5-3-2 is provided with groove 5-3-2-1 radially, and mandrel pressing plate 5-3-1 embeds in groove 5-3-2-1.The line shaft of reel motor 5-2-1 is connected with the polished rod 5-1-1-1 of the first driving shaft 5-1-1 by reel shaft coupling 5-2-2, the front end face of active friction wheel disc 5-1-4-1 is connected with the front end face of driven friction wheel disc 5-1-2-1, and end and the magnetic force reel 5-3 of spool spindle 5-1-2-2 are coaxially connected.

Multiple spring holder 5-1-8 is six, three spring holder 5-1-8 are connected on the rear side end face of active friction wheel disc 5-1-4-1 by the angle of circumference interval of 120 degree respectively, and other three spring holder 5-1-8 are connected on the rear side end face of spring rear end seat 5-1-5 by identical mode.Active friction wheel disc 5-1-4-1 is provided with three counterbore screw 5-1-4-1-1, and they press the angle of circumference of 120 degree respectively uniformly at intervals on the rear side end face of active friction wheel disc 5-1-4-1; Spring rear end seat 5-1-5 is also provided with identical three counterbore screws with counterbore screw 5-1-4-1-1.Six spring holder 5-1-8 are bolt, and they are connected with three counterbore screws on three counterbore screw 5-1-4-1-1 or spring rear end seat 5-1-5 with the form be threaded.

Be provided with magnetic patch in groove 5-3-2-1, mandrel pressing plate 5-3-1 is ferromagnetic material, and magnetic patch and mandrel pressing plate 5-3-1 are connected by magnetic force.Groups of springs 5-1-3 can be replaced by a large torsion spring, and this torsion spring is directly enclosed within position corresponding with groups of springs 5-1-3 on screw rod 5-1-1-3, and the two ends of torsion spring are connected with spring rear end seat 5-1-5 and active friction wheel disc 5-1-4-1 respectively.

Transfer belt storage support 1, transfer belt position-limit mechanism 2, shooting platform 3, elementary speed limiting mechanism 4, regulating wheel 6 and speed limit hose coiling mechanism 5 are fixed in same level in turn, and the height value of the height value and column 3-4-1 distance horizontal plane that store the lower end distance horizontal plane of roller draw-in groove 1-1-1 is all greater than the height value of the groove bottom distance horizontal plane of direction groove 2-2.Riser 3-2-1 is in the horizontal direction to the lopsidedness at transfer belt storage support 1 place; The diameter of regulating wheel 6 is less than the diameter of active roll 4-4, and the rotating shaft height of regulating wheel 6 is also less than the rotating shaft height of active roll 4-4; Reel mandrel 5-3-2 is identical with the diameter of active roll 4-4, and the rotating shaft height of reel mandrel 5-3-2 is greater than the rotating shaft height of driven running roller 4-5.Store the opening direction of roller draw-in groove 1-1-1 on door font support 1-1 contrary relative to the direction at door font support 1-1 place with transfer belt position-limit mechanism 2.

During embody rule transfer belt code-bar of the present invention image speed limit acquisition system, store roller 1-2 for loading not transfer belt reel after testing, the minor axis of himself roller both sides is respectively charged into two and stores roller draw-in groove 1-1-1, then by the termination of transfer belt in turn in the below of altitude location wheel 2-1, direction groove 2-2 and the below of pressure wheel 2-3 pass.Transfer belt after exporting from transfer belt position-limit mechanism 2 is formed the double panel structure with crack from side direction embedding by two concave shape side arms of transfer belt stabilizing mechanism 3-5 respectively, thus, two double panel structures can play the support to transfer belt, spacing and stabilization.The inclination angle of adjustment picking sensor pose adjustment seat 3-2, makes one end of its contiguous pressure wheel 2-3 downward-sloping, to avoid the transmission path of transfer belt.Subsequently, transfer belt is passed between active roll 4-4 and driven running roller 4-5, then make it walk around from the below of regulating wheel 6, then, by the termination pads of transfer belt around on the external diameter of reel mandrel 5-3-2.

After completing the preliminary loading of transfer belt, driven voller being taken turns mandrel 4-5-1 changes into by the first rotating shaft holddown groove 4-2-3-1 and the second rotating shaft holddown groove 4-3-3-1 common support from being supported by the first maintenance support slot 4-2-3-2 and second maintenance support slot 4-3-3-2, now, the external diameter of active roll 4-4 and driven running roller 4-5 is tangent, driven running roller 4-5, under the pulling force effect of two extension spring 4-6, applies pressure to transfer belt.Finally, by transfer belt along its through path do alignment adjustment after, rotate and store roller 1-2 and transfer belt is tightened and uses regulating wheel 6 to be pressed in not on transfer belt reel after testing, rely on the self gravitation of regulating wheel 6 to apply pressure to not transfer belt reel after testing, in equipment operation process, occurs the state excessively relaxed to prevent transfer belt.

Be positioned at a bit of transfer belt of the concave shape intra-zone of transfer belt stabilizing mechanism 3-5, be detection and the photographic subjects of picking sensor 3-7 and camera 3-8.Start light source 3-6, picking sensor 3-7 and camera 3-8 respectively, the light that light source 3-6 sends illuminates the back side of transfer belt to strengthen illumination.With control cable, transmitter 3-7-2 is connected with camera 3-8, and presets a suitable light intensity activation threshold value according to current light condition to receiver 3-7-1.The detection light belt that transmitter 3-7-2 sends passes transfer printing code-bar and incident receiver 3-7-1, when detecting the transparent transfer printing code-bar that light belt passes in transfer belt, the luminous flux entering into receiver 3-7-1 inside can exceed its activation threshold value preset, thus causes receiver 7-1 to send a shooting Trig control signal to camera 3-8.

Support reel shaft coupling 5-2-2 with support 5-6, and respectively the axial spacing of polished rod 5-1-1-1 and spool spindle 5-1-2-2 is fixed with the built-in bearing of clutch shaft bearing support 5-4 and the second support of bearing 5-5.The end of spool spindle 5-1-2-2 is directly coaxially connected with magnetic force reel 5-3, thus formed link up coil axle system.Manual rotation also changes the position of pressure adjusting nut 5-1-6 on screw rod 5-1-1-3, and apply to compress thrust to spring rear end seat 5-1-5 by pressure adjusting nut 5-1-6, make groups of springs 5-1-3 forced compression, this thrust is transmitted through groups of springs 5-1-3 and active friction wheel disc 5-1-4-1 in turn and is finally applied on driven friction wheel disc 1-2-1.

Make speed limit motor 4-1 and reel motor 5-2-1 all with identical speed uniform rotation, when reel motor 5-2-1 is with constant rotary speed working, dropout speed limiting mechanism 5-1 will coil the front end face of power transmission to active friction wheel disc 5-1-4-1 according to the output speed of reel motor 5-2-1 and torsion, produces stiction between the friction pair jointly formed by active friction wheel disc 5-1-4-1 and driven friction wheel disc 1-2-1.This stiction will remain unchanged under the specified dropout moment of torsion of spool spindle 5-1-2-2, and therefore active friction wheel disc 5-1-4-1 and driven friction wheel disc 1-2-1 can not thread off, and the two is without relative motion.Above-mentioned disc scrolling power remains unchanged, and continues transmit and drive magnetic force reel 5-3 to start uniform rotation.

The speed coiling transfer belt due to magnetic force reel 5-3 can increase along with the external diameter of transfer printing tep reel and constantly accelerate, and causes coiling the continuing to increase of wheel load torque, coils linear velocity and also synchronously increase.This all can bring transfer belt to be torn, the risk that cannot coil continuously, simultaneously, tightened gradually along with elementary speed limiting mechanism 4 and speed limit hose coiling mechanism 5 transfer belt, driven running roller 4-5 will accelerate to rotate under the frictional force effect of transfer belt, and meanwhile, the frictional force that active roll 4-4 is then still produced by it plays certain speed limit effect to transfer belt, although this causes the transfer belt being positioned at transfer belt stabilizing mechanism 3-5 inside also to have acceleration tendency, its acceleration effect obviously slows down.

Along with transfer belt further acceleration and tighten, the load torque of magnetic force reel 5-3 will tend to extreme value gradually, when the load torque of magnetic force reel 5-3 reaches the specified dropout moment of torsion of spool spindle 5-1-2-2, torsion between aforementioned friction pair will overcome stiction, active friction wheel disc 5-1-4-1 and driven friction wheel disc 1-2-1 is caused to thread off, meanwhile, stiction is instantaneous becomes rotation friction.The Overload torque coiling wheel generation will be discharged and cause torsion to decline rapidly, and magnetic force reel 5-3 slows down.When torsion between active friction wheel disc 5-1-4-1 and driven friction wheel disc 1-2-1 is again lower than stiction, active friction wheel disc 5-1-4-1 and driven friction wheel disc 1-2-1 is caused to reconnect under the pressure effect of groups of springs 5-1-3, automatically restore to the nominal disc scrolling power transmission mode under stiction, magnetic force reel 5-3 accelerates again.

The process that the friction pair that above-mentioned active friction wheel disc 5-1-4-1 is formed with driven friction wheel disc 1-2-1 is threaded off, recover to be connected is gone round and begun again, magnetic force reel 5-3 is made again to be issued to new stable state at the rotary state just accelerated, thus under the prerequisite without the need to modulating motor rotating speed, effectively control maximum speed or the maximum load moment of torsion of magnetic force reel 5-3, be not torn when guaranteeing that transfer belt is coiled.Meanwhile, although a bit of transfer belt being positioned at the concave shape intra-zone of transfer belt stabilizing mechanism 3-5 also synchronously does periodic motion, its speed of service is limited within a suitable scope all the time.In the case, picking sensor 3-7 can guarantee to trigger camera 3-8 shutter according to correct frequency, make its capture its current immediately below transfer printing code-bar, thus avoid the linkage section photographing two adjacent code-bars, the transfer belt code-bar image photographed also there will not be fuzzy ghost.

The position of setting pressure adjusting nut 5-1-6 on screw rod 5-1-1-3 according to demand, the maximum rated torsion that the friction pair that indirectly can set this reel can bear, and then the maximum outside diameter upper limit controlling the paper bag dish that magnetic force reel 5-3 coils.

Built-in magnetic patch and the mandrel pressing plate 5-3-1 of groove 5-3-2-1 are connected by magnetic force, and coil in the process of transfer belt at magnetic force reel 5-3, mandrel pressing plate 5-3-1 plays regular position-limiting action in side direction to the reel that transfer belt is formed.After magnetic force reel 5-3 completes the coil operation to entire volume transfer belt, grasp mandrel pressing plate 5-3-1 both sides and overcome the attraction magnetic force of magnetic patch, easily mandrel pressing plate 5-3-1 can be taken off from reel mandrel 5-3-2 front end, facilitate taking off and changing of transfer belt reel.

When transfer printing tep reel is under the drive of speed limit reel 5 during setting in motion, the aforementioned a bit of transfer belt being positioned at transfer belt stabilizing mechanism 3-5 concave shape intra-zone starts horizontal movement, the detection light belt that transmitter 3-7-2 sends intermittently from the transfer printing code-bar of transfer belt through or from the connecting portion of contiguous two transfer printing code-bars through, this causes the detection light belt received by receiver 3-7-1 to produce intermittent light flux variations thereupon, receiver 3-7-1 can produce the trigger impulse identical with detecting light belt light flux variations frequency, form the shooting trigger signals to camera 3-8.Camera 3-8 is used for taking a bit of transfer belt of the concave shape intra-zone being positioned at transfer belt stabilizing mechanism 3-5 above transfer belt, and the take pictures trigger rate of shooting trigger signals that frequency and picking sensor 3-7 send of its shutter is consistent.

Camera pose adjustment seat 3-3 can be used for the shooting inclination angle and the height that adjust camera 3-8, and then the scope of the visual field of change camera 3-8 shooting, optical axis attitude and focusing position.When the detection light belt that transmitter 3-7-2 sends projects transfer belt surface, a strip light spots can be formed on transfer belt surface, by the attitude of adjustment camera pose adjustment seat 3-3, camera 3-8 can be made to take with the transfer belt of the attitude of the best to strip light spots position.

The picking sensor pose adjustment seat 3-2 detection light belt that then adjustable picking sensor 3-7 sends projects incident inclination angle in transfer belt and position.Picking sensor pose adjustment seat 3-2 and camera pose adjustment seat 3-3 with the use of, the detection light belt that picking sensor 3-7 can be made to send stably projects in transfer belt with special inclination angle, under this obliquity and attitude, picking sensor 3-7 both can not stop the shooting visual field of camera, do not disturb again the level run of transfer belt simultaneously, in addition, under this attitude of picking sensor 3-7, when camera 3-8 is subject to picking sensor 3-7 triggering at every turn, correctly can capture the transfer printing code-bar producing Current camera shooting trigger signals, and can not timing error be produced.Therefore the problem that the triggering shutter that causes in viewing field of camera because of leading sensor is not corresponding with the code-bar photographed can be avoided well, to adapt to the multiple shooting pose adjustment demand under different condition.The slit of transfer belt stabilizing mechanism 3-5 can carry out supporting to transfer belt and spacing and play maintenance stabilization to it in the process of moving in transfer belt.

Picking sensor pose adjustment seat and camera pose adjustment seat with the use of, the detection light belt that picking sensor can be made to send stably projects in transfer belt with special inclination angle, under this obliquity and attitude, the shooting visual field that picking sensor not only can not stop camera simultaneously but also do not disturb the level run of transfer belt, avoid the timing error that the triggering shutter that causes in viewing field of camera because of leading sensor is not corresponding with the code-bar photographed, or only photograph the linkage section of two adjacent code-bars.

Elementary speed limiting mechanism is identical all the time with speed limit hose coiling mechanism rotating speed, but along with the coil diameters of the flexible materials such as transfer belt on reel increases gradually, speed limit hose coiling mechanism to the hauling speed of transfer belt gradually faster than the hauling speed of elementary speed limiting mechanism to transfer belt, now, the driven running roller 4-5 of elementary speed limiting mechanism will accelerate to rotate under the frictional force effect of transfer belt, simultaneously, the frictional force that active roll 4-4 is then still produced by it plays certain speed limit effect to transfer belt, although this causes the transfer belt being positioned at transfer belt stabilizing mechanism 3-5 inside also to have acceleration tendency, but its acceleration effect obviously slows down, thus play elementary speed limit effect.

Increase gradually further along with coil diameters, the further acceleration of transfer belt and tightening, the load torque of magnetic force reel 5-3 will tend to extreme value gradually, when the load torque of magnetic force reel 5-3 reaches the specified dropout moment of torsion of spool spindle 5-1-2-2, torsion between aforementioned friction pair will overcome stiction, cause active friction wheel disc 5-1-4-1 and driven friction wheel disc 1-2-1 to thread off, meanwhile, stiction is instantaneous becomes force of sliding friction.The Overload torque coiling wheel generation will be discharged and cause torsion to decline rapidly, and magnetic force reel 5-3 slows down because running out of steam.When torsion between active friction wheel disc 5-1-4-1 and driven friction wheel disc 1-2-1 is again lower than stiction, active friction wheel disc 5-1-4-1 and driven friction wheel disc 1-2-1 is caused to reconnect under the pressure effect of groups of springs 5-1-3, automatically restore to the nominal disc scrolling power transmission mode under stiction, magnetic force reel 5-3 accelerates again.

Elementary speed limiting mechanism and speed limit hose coiling mechanism with the use of, the speed limit that transfer belt is run can be controlled, make camera can capture according to correct frequency its current immediately below transfer printing code-bar, the transfer belt code-bar image photographed also can not produce fuzzy because transfer belt movement velocity is too fast.Speed limit hose coiling mechanism 5 is based on the speed limiting function of theory of mechanics, its core component can automatically discharge the Overload torque on power transmission shaft and reset, thus indirectly maximum on reel of restriction transfer belt coils speed, and then the interval that the speed of coiling of flexible material is being no more than limit velocity is periodically changed, the speeds control demand under making it meet special detection occasion.

In addition, this transfer belt code-bar image speed limit acquisition system is without the need to automatically controlled rate feedback system, also without the need to carrying out speed regulating control to drive motors, its only rely on simple and effective mechanical device just can under the highest mean speed state the continuous steady operation of fluctuating acceleration periodically, improve operating efficiency substantially and saved cost.

Claims (1)

1. transfer belt code-bar image speed limit acquisition system, it is characterized in that, this system comprises transfer belt storage support (1), transfer belt position-limit mechanism (2), shooting platform (3), elementary speed limiting mechanism (4), speed limit hose coiling mechanism (5) and regulating wheel (6), described transfer belt storage support (1) comprises a font support (1-1), store roller (1-2) and auxiliary adjustment roller (1-3), the madial wall of two columns of door font support (1-1) is respectively equipped with the storage roller draw-in groove (1-1-1) of opening obliquely upward, the top of described two columns is connected by axostylus axostyle (1-1-2), the roller both sides storing roller (1-2) are respectively equipped with minor axis, and two minor axises are identical, and their length is less than the degree of depth storing roller draw-in groove (1-1-1), the axial length storing roller (1-2) its roller is less than a spacing for font support (1-1) two columns, described auxiliary adjustment roller (1-3) comprises runing rest (1-3-1) and the auxiliary pressure roller (1-3-2) of rectangle, runing rest (1-3-1) comprises two identical spiral arms, the forward and backward two ends of described spiral arm are respectively equipped with axis hole, the two ends of auxiliary pressure roller (1-3-2) connect with the front end axis hole axle of runing rest (1-3-1) two spiral arms respectively, and the other end of described two spiral arms connects with axostylus axostyle (1-1-2) axle respectively, the lower end storing roller draw-in groove (1-1-1) is identical with the length of auxiliary pressure roller (1-3-2) to the distance of axostylus axostyle (1-1-2) axis,

Described transfer belt position-limit mechanism (2) comprises altitude location wheel (2-1), direction groove (2-2) and pressure wheel (2-3), the diameter of pressure wheel (2-3) with highly all take turns (2-1) with altitude location identical, axially parallel and horizontal positioned both it; The two ends of direction groove (2-2) are uncovered, the floor height of its groove takes turns (2-1) external diameter minimum point with altitude location is identical, and the open at both ends of direction groove (2-2) takes turns (2-1) with altitude location respectively and pressure wheel (2-3) is alignd;

Shooting platform (3) comprises adjusting pole (3-1), picking sensor pose adjustment seat (3-2), camera pose adjustment seat (3-3), illuminating bracket (3-4), transfer belt stabilizing mechanism (3-5), light source (3-6), picking sensor (3-7) and camera (3-8), adjusting pole (3-1) is respectively equipped with the two chute (3-1-1) of camera pose adjustment vertically and the two chute (3-1-2) of picking sensor pose adjustment, the two chute (3-1-1) of camera pose adjustment is positioned at the top of the two chute (3-1-2) of picking sensor pose adjustment, identical both it, described camera pose adjustment seat (3-3) comprises contiguous block (3-3-1), connecting screw rod (3-3-2) and two positioning screws (3-3-3), and contiguous block (3-3-1) and two positioning screws (3-3-3) are connected on former and later two end faces of contiguous block (3-3-1) respectively,

Described picking sensor pose adjustment seat (3-2) comprises riser (3-2-1), two picking sensor mount pads (3-2-2) and two picking sensor pose adjustment bolts (3-2-3), the sidewall of riser (3-2-1) is provided with horizontal concrete chute (3-2-1-1), two picking sensor mount pads (3-2-1) are coplanar and be all positioned at the homonymy of riser (3-2-1), they are vertical respectively and be fixed on the two ends of riser (3-2-1), its three in one is shaping, and is encircled into a concave shape structure; Described two picking sensor pose adjustment bolts (3-2-3) are passed the left and right chute of horizontal concrete chute (3-2-1-1) and the two chute (3-1-2) of picking sensor pose adjustment in turn and are connected by nut and adjusting pole (3-1);

Described illuminating bracket (3-4) comprises light source supporting base (3-4-2) and four identical columns (3-4-1), four column (3-4-1) tops are equipped with screw (3-4-1-1), and their lower end is fixed in same level with adjusting pole (3-1) respectively; Light source supporting base (3-4-2) is connected with the stage casing of four columns (3-4-1) respectively;

Described transfer belt stabilizing mechanism (3-5) comprises two concave shape thin plates (3-5-1), two Screws (3-5-2) and two screw gaskets (3-5-3), two concave shape thin plates (3-5-1) are identical, the front end of the concave shape cantilever of thin plate (3-5-1) is respectively equipped with little screw (3-5-1-1), described Screw (3-5-2) and screw gasket (3-5-3) one_to_one corresponding; Four cantilevers of two concave shape thin plates (3-5-1) align between two and two screw gaskets (3-5-3) are clipped in the middle, Screw (3-5-2) in turn through the little screw (3-5-1-1) on upper strata concave shape thin plate (3-5-1), screw gasket (3-5-3) and lower floor's concave shape thin plate (3-5-1) little screw (3-5-1-1) and be threaded with screw (3-4-1-1); Camera (3-8) is positioned at the top of transfer belt stabilizing mechanism (3-5), camera (3-8) is threaded with connecting screw rod (3-3-2) by the radial screw on its sidewall, two positioning screws (3-3-3) are each passed through the left and right chute of the two chute (3-1-1) of camera pose adjustment, and are connected by nut and adjusting pole (3-1); The transmitter (3-7-2) of picking sensor (3-7) and corresponding with one the respectively picking sensor mount pad (3-2-2) of receiver (3-7-1) are connected, and the transmitting terminal of transmitter (3-7-2) and the receiving terminal of receiver (3-7-1) are toward each other; Described illuminating bracket (3-4) is positioned at inside the concave shape structure of picking sensor pose adjustment seat (3-2), and the lower surface of light source (3-6) is fixed on light source supporting base (3-4-2);

Two chutes on the two chute (3-1-1) of described camera pose adjustment or the two chute (3-1-2) of picking sensor pose adjustment are made up of parallel to each other two rectangular through holes, and the axis of described rectangular through hole is identical with the axis of connecting screw rod (3-3-2);

Described column (3-4-1) comprises multiple little copper post, and the front end of little copper post is stud, and end is screw; Described column (3-4-1) is formed by connecting by multiple little copper post head and the tail;

Elementary speed limiting mechanism (4) comprises speed limit motor (4-1), first pressure roller supporting base (4-2), the right supporting base of second pressure roller (4-3), active roll (4-4), driven running roller (4-5) and two extension springs (4-6), the center of the second pressure roller supporting base (4-3) is provided with the second active roll bearing (4-3-1), the right side of the lateral wall of the second pressure roller supporting base (4-3) hypomere is provided with the second extension spring holder (4-3-2), the upper surface of the second pressure roller supporting base (4-3) is provided with the second driven running roller locating slot (4-3-3), the center of the first pressure roller supporting base (4-2) is provided with the first active roll bearing (4-2-1), the right side of the lateral wall of the second pressure roller supporting base (4-3) hypomere is provided with the first extension spring holder (4-2-2), and the upper surface of the second pressure roller supporting base (4-3) is provided with the second driven running roller locating slot (4-2-3), active roll (4-4) comprises active roll mandrel (4-4-1) and the first rubber wheel (4-4-2), is coaxially connected both it, driven running roller (4-5) comprises driven voller wheel mandrel (4-5-1) and driven voller wheel sleeve (4-5-2), the stage casing of driven voller wheel mandrel (4-5-1) is also fixed with two driven voller wheel bearings (4-5-1-1) respectively, and the two ends of driven voller wheel sleeve (4-5-2) are connected with the outer ring of a driven voller wheel bearing (4-5-1-1) respectively and form rolling width, driven voller wheel sleeve (4-5-2) appearance surface cover has the second rubber wheel, the total length of driven voller wheel mandrel (4-5-1) is greater than the spacing of the first pressure roller supporting base (4-2) the distance right supporting base of the second pressure roller (4-3), the outer wall spacing of two driven voller wheel bearing (4-5-1-1) is identical with the spacing of the first pressure roller supporting base (4-2) the distance right supporting base of the second pressure roller (4-3), and running roller mandrel (4-5-1) is through outward extending shaft part after driven voller wheel bearing (4-5-1-1) inner ring being arranged with two plane machinings (4-5-1-1) parallel to each other, second driven running roller locating slot (4-3-3) comprises the second rotating shaft holddown groove (4-3-3-1) and the second maintenance support slot (4-3-3-2), second rotating shaft holddown groove (4-3-3-1) and the second maintenance support slot (4-3-3-2) are the horizontal groove of the rectangle running through the second pressure roller supporting base (4-3) sidewall, and its latter is darker than the former, first driven running roller locating slot (4-2-3) comprises the first rotating shaft holddown groove (4-2-3-1) and the first maintenance support slot (4-2-3-2), first rotating shaft holddown groove (4-2-3-1) and the first maintenance support slot (4-2-3-2) are the horizontal groove of the rectangle running through the first pressure roller supporting base (4-2) sidewall, and its latter is darker than the former,

The symmetrical configuration of the first pressure roller supporting base (4-2) and the second pressure roller supporting base (4-3); The two ends of active roll (4-4) are rotationally connected with the first active roll bearing (4-2-1) and the second active roll bearing (4-3-1) respectively, and the two ends of driven voller wheel mandrel (4-5-1) are supported by the first maintenance support slot (4-2-3-2) and the second maintenance support slot (4-3-3-2) respectively; Lower end and the second extension spring holder (4-3-2) of an extension spring (4-6) are connected, and the axle head that mandrel (4-5-1) taken turns by its other end and driven voller is connected; Lower end and the first extension spring holder (4-2-2) of another extension spring (4-6) are connected, and the axle head that mandrel (4-5-1) taken turns by its other end and driven voller is connected; Active roll mandrel (4-4-1) is coaxially connected by shaft coupling and speed limit motor (4-1);

Speed limit hose coiling mechanism (5) comprises dropout speed limiting mechanism (5-1), driving mechanism (5-2) and magnetic force reel (5-3), and driving mechanism (5-2) comprises reel motor (5-2-1) and reel shaft coupling (5-2-2); Dropout speed limiting mechanism (5-1) comprises the first driving shaft (5-1-1), the second driving shaft (5-1-2), groups of springs (5-1-3), spring at front end seat (5-1-4), spring rear end seat (5-1-5), pressure adjusting nut (5-1-6), key (5-1-7) and multiple spring holder (5-1-8); First driving shaft (5-1-1) comprises polished rod (5-1-1-1), baffle plate (5-1-1-2), screw rod (5-1-1-3) and drive shaft hole (5-1-1-4), polished rod (5-1-1-1) and screw rod (5-1-1-3) are coaxially fixed on the both sides of baffle plate (5-1-1-2) respectively, and its three in one is shaping; Drive shaft hole (5-1-1-4) is positioned at the top of screw rod (5-1-1-3), and its madial wall is provided with the first keyway (5-1-1-4-1) vertically;

Described spring at front end seat (5-1-4) comprises active friction wheel disc (5-1-4-1) and bearing pin (5-1-4-2), bearing pin (5-1-4-2) is coaxially fixed on the front end face of active friction wheel disc (5-1-4-1), one-body molded both it; The lateral wall of bearing pin (5-1-4-2) is provided with the second keyway (5-1-4-2-1) vertically; Multiple spring holder (5-1-8) is coaxially connected on the rear side end face of active friction wheel disc (5-1-4-1) by identical angle of circumference; Multiple spring holder (5-1-8) is coaxially connected on the rear side end face of spring rear end seat (5-1-5) by identical angle of circumference; Second driving shaft (5-1-2) comprises driven friction wheel disc (5-1-2-1) and spool spindle (5-1-2-2), spool spindle (5-1-2-2) is coaxially fixed on the rear side end face of driven friction wheel disc (5-1-2-1), one-body molded both it; Spring rear end seat (5-1-5) is circular ring structure, and the external diameter of annulus is identical with active friction wheel disc (5-1-4-1), and the madial wall of annulus is smooth; Groups of springs (5-1-3) comprises many springs, and each described spring is identical, and the two ends of spring are enclosed within a spring holder (5-1-8) respectively;

The screw rod (5-1-1-3) of described first driving shaft (5-1-1) is in turn through pressure adjusting nut (5-1-6) and spring rear end seat (5-1-5), pressure adjusting nut (5-1-6) is threaded with screw rod (5-1-1-3), one end of spring rear end seat (5-1-5) is connected with pressure adjusting nut (5-1-6), its other end is connected with the one end of groups of springs (5-1-3), and the other end of groups of springs (5-1-3) is connected with the front end face of active friction wheel disc (5-1-4-1); It is inner that bearing pin (5-1-4-2) is inserted into drive shaft hole (5-1-1-4), and the first keyway (5-1-1-4-1) is connected with the second keyway (5-1-4-2-1) by key (5-1-7); Magnetic force reel (5-3) comprises reel baffle plate (5-3-3), reel mandrel (5-3-2) and mandrel pressing plate (5-3-1), its three is coaxially connected in turn, the rear end face of reel mandrel (5-3-2) is provided with groove (5-3-2-1) radially, and mandrel pressing plate (5-3-1) embeds in groove (5-3-2-1);

The line shaft of described reel motor (5-2-1) is connected with the polished rod (5-1-1-1) of the first driving shaft (5-1-1) by reel shaft coupling (5-2-2), the front end face of active friction wheel disc (5-1-4-1) is connected with the front end face of driven friction wheel disc (5-1-2-1), and end and the magnetic force reel (5-3) of spool spindle (5-1-2-2) are coaxially connected;

Described multiple spring holder (5-1-8) is six, three spring holders (5-1-8) are connected on the rear side end face of active friction wheel disc (5-1-4-1) by the angle of circumference interval of 120 degree respectively, and other three spring holders (5-1-8) are connected in by identical mode on the rear side end face of spring rear end seat (5-1-5); Described active friction wheel disc (5-1-4-1) is provided with three counterbore screws (5-1-4-1-1), and they press the angle of circumference of 120 degree respectively uniformly at intervals on the rear side end face of active friction wheel disc (5-1-4-1); Described spring rear end seat (5-1-5) is also provided with counterbore screw (5-1-4-1-1) identical three counterbore screws; Described six spring holders (5-1-8) are bolt, and they are connected with three counterbore screws on three counterbore screws (5-1-4-1-1) or spring rear end seat (5-1-5) with the form be threaded;

Be provided with magnetic patch in described groove (5-3-2-1), mandrel pressing plate (5-3-1) is ferromagnetic material, and described magnetic patch and mandrel pressing plate (5-3-1) are connected by magnetic force; Groups of springs (5-1-3) is replaced by a large torsion spring, this torsion spring is directly enclosed within the upper position corresponding with groups of springs (5-1-3) of screw rod (5-1-1-3), and the two ends of torsion spring are connected with spring rear end seat (5-1-5) and active friction wheel disc (5-1-4-1) respectively;

Transfer belt storage support (1), transfer belt position-limit mechanism (2), shooting platform (3), elementary speed limiting mechanism (4), regulating wheel (6) and speed limit hose coiling mechanism (5) are fixed in same level in turn, and the height value of the height value and column (3-4-1) distance horizontal plane that store the lower end distance horizontal plane of roller draw-in groove (1-1-1) is all greater than the height value of the groove bottom distance horizontal plane of direction groove (2-2); Riser (3-2-1) is in the horizontal direction to the lopsidedness at transfer belt storage support (1) place; The diameter of regulating wheel (6) is less than the diameter of active roll (4-4), and the rotating shaft height of regulating wheel (6) is also less than the rotating shaft height of active roll (4-4); Reel mandrel (5-3-2) is identical with the diameter of active roll (4-4), and the rotating shaft height of reel mandrel (5-3-2) is greater than the rotating shaft height of driven running roller (4-5); Store roller draw-in groove (1-1-1) opening direction on door font support (1-1) contrary relative to the direction at door font support (1-1) place with transfer belt position-limit mechanism (2).