CN205032396U - Inferior capsule sorting machine - Google Patents

Abstract

The utility model discloses an inferior capsule sorting machine, including the basement parts with promote parts, be equipped with a plurality of holes on promoting parts, wait to examine the capsule holding in the hole, promote parts and promote to wait to examine the capsule and roll on the basement parts, still examining the capsule and shooing the multiple image including shooing device and image analysis system, treating, the image shot through the analysis is differentiated and is sorted inferior capsule, the basement parts are all movable with the promotion parts, and it is poor that both have speed. The utility model discloses a control basement parts and the slew velocity who promotes parts, the speed that can control both linear velocities is poor, that is the roll radian of capsule, the all standing of possible shooting angle. And the rotational speed of promotion parts still can further improve, can guarantee that the treatment effeciency of machine improves by a wide margin.

Description

Inferior capsule sorter

Technical field

The utility model belongs to capsule field of mechanical technique, particularly relates to a kind of inferior capsule sorter.

Background technology

In capsule manufacture, unavoidably there will be some defect wares, as cracking, burr, bubble, spot etc., before dispatching from the factory, these defect wares need to be sorted out.Identify foundation mainly its optical characteristics of defect ware, these defects are all from all finding out in appearance.Therefore, in early days, be carry out sorting in the mode of manual identified, as Chinese patent 200920299531X discloses a kind of sorting table of capsule, he is actually under light source irradiation, is manually detected by defective work.Along with the development of image recognition technology, computer recognizing sorting in recent years becomes main flow, as Chinese patent application 2014101405772 discloses a kind of full-automatic optical defective capsule sorter, the Master's thesis " studying based on the identification of the capsule surface defect of machine vision and Sorting Technique " (Zhejiang University, 2013) that and for example Hou Hai flies also relates to the research of this area.These technical schemes are all taken pictures to capsule to be checked by video camera, and then computer is to the photo analysis research taken, and finds out defective capsule, it is sorted out.Current high-speed camera machine technology and image analysis technology relative maturity, be enough to the analysis dealing with capsule; How impact selection efficiency and the mainly mechanical part of reliability, namely deliver to video camera place and how to take by capsule.

In the paper of Hou Haifei, its mechanical part devises unique capsule groove, and capsule can be overturn along with the transmission of conveyer belt, each upset about 90 °, overturns three times, collects the capsule image of four width different surfaces altogether, completely covers capsule one week, reach the effect detected completely.This scheme can ensure all standing of shooting speed and shooting angle, but the clamping force of capsule groove is difficult to control, and easily crushes capsule; The speed of capsule upset is simultaneously difficult to increase substantially, thus have impact on the efficiency of selection.

And in 2014101405772, its mechanical system has a sorter, sorter offers the hole of circumferential arrangement; The pedestal that sorter is arranged on printing opacity rotates, and when sorter rotates, the capsule to be checked promoted in its hole rolls on pedestal, and now video camera carries out multiframe shooting to capsule.This mode is the sorting mode of at present most main flow, is also the immediate prior art of the utility model.Finding in practice, also there are some problems in this technical scheme, is that error rate can not reach requirement on the one hand, there is undetected defect ware; Be that efficiency is difficult to further raising on the other hand, process 7 ~ 80,000 capsules per hour can be accomplished at present, be difficult to improve again.

Summary of the invention

The purpose of this utility model is to provide the inferior capsule sorter that a kind of efficiency is higher, loss is lower.

Utility model people, through careful research, has found the reason causing prior art loss high.For the needs of image processing software, the shooting interval of video camera is necessarily consistent with the rotation phase of sorter, and that is, if the distance of two adjacent holes is a on sorter, then hole often moves the distance of a, and a photograph frame taken by video camera; Simultaneously, the theoretic shooting visual field of each shooting is 180 °, but in fact consider the factors such as the curvature of capsule circumference, the definition of shooting, the analytic ability of computer, effective field of view is about 100 °, shooting 4 ability are namely at least needed to cover 360 ° of capsule circumference completely.When capsule rolls a phase place under sorter promotes, its rolling distance is the distance between adjacent two circular cavities, and this distance is for same machine, and be a preset parameter, being converted on the roll angle of capsule, has been exactly individual variable parameter.Such as, distance between the adjacent two circular cavities of certain type machine is 15mm, the circumferential length of certain capsule is 22mm, then every a phase place, the angle that this capsule rolls is 15/22*360 °=245 °, its first frame is shot for 0 ° ~ 100 ° like this, second frame is shot for 245 ° ~ 345 °, 3rd frame is shot for 130 ° ~ 230 °, and the 4th frame is shot for 15 ° ~ 115 °, and the 5th frame is shot for 260 ° ~ 0 °, 6th frame is shot for 145 ° ~ 245 °, visible, even if having taken six two field pictures, still there is the angular interval of 115 ° ~ 130 ° to fail to cover; As increased shooting frame number further, then will increase cost further, lower efficiency.And machine must need the capsule sorting different model, the circumferential length due to different capsule is different, and therefore above-mentioned computational process, also by difference, realizes to all capsules the machine that full angle covers come so cannot design.

Utility model people is investigated the reason of restriction prior art treatment effeciency.As its treatment effeciency will be improved, the rotating speed of sorter must be strengthened, thus promotion capsule rolls quickly, and this centrifugal force that will capsule will be subject to increases, and causes capsule to be thrown out of outside machine.

On this basis, utility model people creatively proposes following technical scheme: inferior capsule sorter, comprises substrate parts and push mechanism, and push mechanism is provided with some holes, capsule to be checked is contained in hole, and push mechanism promotes capsule to be checked and rolls on substrate parts; Also comprise filming apparatus and image analysis system, to capsule shoot multi-frame images to be checked, by analyzing captured image to differentiate and sorting inferior capsule; It is characterized in that: substrate parts and push mechanism are all movable, and both have speed difference.

Described substrate parts is light transparent member, and has light source at substrate parts.

As preferred technical scheme, substrate parts and push mechanism are cylinder shape, coaxially arrange, and push mechanism is located at outside substrate parts; The periphery of push mechanism is provided with some holes for accommodating capsule to be checked, and promotes capsule to be checked and roll on the periphery of substrate parts.

Described substrate parts and the equidirectional rotation of push mechanism; The velocity of rotation of push mechanism is greater than or less than the velocity of rotation of substrate parts.

The velocity of rotation of substrate parts and push mechanism is adjustable.

Further, substrate parts is also connected with vacuum extractor, for the hole place of push mechanism provides negative pressure.

The utility model operationally, all rotating by substrate parts and push mechanism, after capsule to be checked enters the hole of push mechanism, is be pushed and roll on substrate parts equally; But now, capsule, relative to the rolling speed of substrate parts, is not the velocity of rotation depending on push mechanism, but depends on the speed difference of push mechanism and substrate parts.In the utility model, it is consistent that the shooting interval of video camera remains with the rotation phase of push mechanism, and namely push mechanism often rotates the distance of an adjacent holes, and video camera shooting once; Now the rolling length of capsule is not the distance of an adjacent holes, but will deduct the rotation distance of substrate parts.By controlling the velocity of rotation of substrate parts and push mechanism, the speed difference of both linear velocities can be controlled, that is the rolling radian of capsule.In practice, can by this Numerical Control at 1/4 of capsule girth, namely take 90 °, 4 shootings can cover whole circumference completely at every turn.Certainly, as hope improves graphical analysis precision, only can choose part less in the shooting visual field, the speed difference of linear velocity both namely reducing, as by the rolling cut to lengthen of capsule at 1/6 of capsule girth, each shooting 60 °, 6 shootings cover whole circumference.As the capsule of other models need be sorted, can, by capsule rolling length reasonable in design, it be made to adapt to the capsule of Multiple Type; Also according to the girth of capsule to be checked, the velocity of rotation of substrate parts and push mechanism can be regulated, still can accomplish all standing of shooting angle.

And on the other hand, the treatment effeciency of machine, because video camera shooting speed almost can ad infinitum improve, therefore depends primarily on the velocity of rotation of push mechanism, this refers to the speed of push mechanism relative to surrounding environment.And the rotating speed of push mechanism still can improve further, that is, although capsule is slack-off relative to the rolling speed of substrate parts, its movement velocity relative to surrounding environment is still very fast, can ensure that the treatment effeciency of machine improves significantly.

The negative pressure at hole place, can be adsorbed on hole place by capsule, prevents capsule from producing because of the high-speed rotation of machine when entering machine and beats.

Accompanying drawing explanation

Be described in further detail below in conjunction with accompanying drawing and embodiment of the present utility model

Fig. 1 is structure sectional view of the present utility model;

Fig. 2 is side view of the present utility model;

Fig. 3 is the structure sectional view of the utility model feed system;

Fig. 4 is the structure sectional view of the utility model end face camera system;

Fig. 5 is the structure sectional view of the utility model periphery camera system;

Fig. 6 is the structural representation of the utility model storing wheel;

Fig. 7 is the structural representation of the utility model first sorption wheel;

Fig. 8 is the structural representation that the utility model protects material wheel;

Fig. 9 is the structural representation of the utility model second sorption wheel;

Figure 10 is the structural representation of the utility model second drawing-inroller;

Figure 11 is the structural representation of the utility model inner core;

Figure 12 is the part-structure schematic diagram of the utility model cylinder circle.

Be labeled as in figure: motor 1, the first power transmission shaft 11, driving wheel 12, the first drive 13, second drive 14,3rd drive 15, outer shaft 16, Inner axle 17, second driving shaft 18, the 3rd power transmission shaft 19,4th power transmission shaft 20, driving pulley 21, belt 22, driven pulley 23;

Feed system 3, feeding port 31, storing wheel 32, cylinder shape groove 321, opening 322, dentalation 323, axis hole 324, first drawing-inroller 33, first sorption wheel 34, first arc groove 35, targeting port 351, adsorption orifice 352, air port 36, air channel, right angle 37, protects material wheel 38, discharging opening 381, ventilation slot 382, division board 383, the first airduct 39;

End face camera system 5, second sorption wheel 51, second airduct 52, second drawing-inroller 53, second arc groove 54, arc ventilating opening 55, wind inlet 56, end face camera 57;

Periphery camera system 7, inner core 71, urceolus 72, cylindrical shell 721, cylinder circle 722, hole 7221;

Periphery camera 4, light source 6, blowning installation 8, clutch shaft bearing 91, the second bearing 92, signal wheel 10, optoelectronic switch 101.

Detailed description of the invention

See accompanying drawing.The present embodiment is a complete inferior capsule sorter, comprises feed system 3, end face camera system 5 and periphery camera system 7.The machine of accompanying drawing 1 comprises two symmetrical mutually covers, and for sake of convenience, the present embodiment only describes wherein a set of.

Feed system 3 comprises feeding port 31, storing wheel the 32, first drawing-inroller 33, first sorption wheel 34 and protects material wheel 38; The structure of described storing wheel 32 is opening tubular, and centre is provided with cylinder shape groove 321, and axial cross section is in " recessed " font; The notch of cylinder shape groove 321 connects with feeding port 31, is provided with axis hole 324 bottom cylinder shape groove 321, and recess sidewall is provided with opening 322; Storing is taken turns 32 inwalls and is provided with a circle dentalation 323, for the capsule to be checked that loosening heap is crowded together, is convenient to drive capsule to rotate; It is relative with the outer circumferential position of the first drawing-inroller 33 that 32 inwalls taken turns by storing; The excircle of the first drawing-inroller 33 is provided with equally distributed first arc groove 35 of a circle, first arc groove 35 front end is provided with flaring targeting port 351, first arc groove 35 end and is provided with the adsorption orifice 352 that groove depth is greater than the first arc groove 35 mid portion; The end face that first sorption wheel 34 and the first drawing-inroller 33 are affixed and be circumferentially provided with air port 36, end face is corresponding with position, air port 36 circumferentially, is innerly connected by air channel, right angle 37; Air port on described first sorption wheel 34 end face is docked with the adsorption orifice 352 on the first drawing-inroller 33, and simultaneously not on the same line, namely capsule to be checked can not block air port at the center of the first arc groove 35, adsorption orifice 352 and sorption wheel 34 end face uptake 36; The center in the air port on described first arc groove 35, adsorption orifice 352 and the first sorption wheel 34 end face, not at same straight line, blocks air port for preventing capsule to be checked; Described storing wheel the 32, first drawing-inroller 33 and the first sorption wheel 34 are fixed on the 3rd power transmission shaft 19 successively, the 3rd power transmission shaft 19 are fixed with the 3rd drive 15; Described protecting expects that wheel 38 is for tubular structure, is enclosed within the first drawing-inroller 33 and the first sorption wheel 34 periphery; Described protecting outside material wheel 38 is provided with the first airduct 39, protects inside material wheel 38 periphery and is provided with ventilation slot 382, and the first airduct 39 is communicated with ventilation slot phase 382 through protecting material wheel 38 outer wall; Ventilation slot 382 is connected with the first sorption wheel 34 air port circumferentially; Protect below material wheel 38 and be provided with discharging opening 381, relative with the first drawing-inroller 33 the first arc groove 35 position circumferentially; Be provided with division board 383 below the gap that described storing wheel 32 and protecting expect between wheel 38, division board 383 is fixed on below the end face that protects and expect wheel 38; Ensure that the capsule to be checked in storing wheel 32 enters in the first arc groove 35 of the first drawing-inroller 33 from top.

End face camera system 5 comprises the second sorption wheel 51, second drawing-inroller 53 and end face camera 57, second sorption wheel 51 end face is provided with the second airduct 52, second airduct near pay-off, the second sorption wheel 51 be circumferentially provided with one arc ventilating opening 55; Described second drawing-inroller 53 is opening tubular, cover on the second sorption wheel 51 peripheral and with its matched in clearance; Described second drawing-inroller 53 is circumferentially provided with equally distributed second arc groove 54 of a circle, for accommodating capsule to be checked; Be provided with wind inlet 56 in second arc groove, wind inlet 56 and the second sorption wheel 51 arc ventilating opening 55 position is circumferentially relative; Described arc ventilating opening 55 one end is positioned at the second sorption wheel 51 and protects the points of tangency of expecting wheel 38, and the other end is positioned at the points of tangency of the second sorption wheel 51 and urceolus 72; Described second drawing-inroller 53 is fixed on second driving shaft 18, drives by second driving shaft being fixed the second drive 14; Described second sorption wheel 51 is enclosed within second driving shaft 18, and is separated by with the second bearing 92 between second driving shaft 18.End face camera 57 is provided with two, is placed in the both sides of the second drawing-inroller 53 respectively.

Periphery camera system 7 comprises inner core 71 and urceolus 72, the substrate parts of inner core 71 that is described in utility model content part, the push mechanism of urceolus 72 that is described in utility model content part, inner core 71 to be arranged on interior axle 17 and to be driven by interior axle and rotates, urceolus 72 to be arranged on outer shaft 16 and to be driven by outer shaft and rotates, interior axle 17 is driven by driven pulley 23, and outer shaft 16 is driven by the first drive 13, is separated by between interior axle and outer shaft with clutch shaft bearing 91.The material of inner core 71 is clear glass, inside cylinder, light source 6 is also housed.Urceolus 72 is made up of cylindrical shell 721 and cylinder circle 722, and cylinder circle is fixed on cylindrical shell becomes an entirety, and is axially being coated on the outside of inner core; Cylinder circle has some penetrating holes 7221, is uniformly distributed in the whole periphery of cylinder circle.(Figure 11 is one section of cylinder circle).

Periphery camera system also comprises periphery camera 4, above the hole 7221 being placed in urceolus, and corresponding with light source 6, to improve shooting precision.

Urceolus 72 is outer is provided with blowning installation 8, with solenoid control simultaneously.

The present embodiment also comprises dynamical system, and dynamical system comprises motor 1, and motor 1 drives fixing driving wheel 12 in the middle of the first power transmission shaft 11, first power transmission shaft 11, and left end fixes the 4th drive 24; Driving wheel is meshed with the first drive 13, and the first drive 13, second drive 14, the 3rd drive 15 three engage successively; 4th drive 24 engages with the 5th drive 25, and the 5th drive 25 is coaxially fixed on the 4th power transmission shaft 20 with driving pulley 21, and driving pulley 21 connects driven pulley 23 by belt 22.Driven pulley 21 drives Inner axle 17, drives inner core 71 to rotate; First drive 13 drives outer shaft 16, drives urceolus 72 to rotate; Driven pulley 21 is identical with the rotation direction of the first drive 13.Second drive 14 drives second driving shaft 18, drives the second drawing-inroller 53 in end face camera system 5; 3rd drive 15 drives the 3rd power transmission shaft 19, drives storing wheel the 32, first drawing-inroller 33 and the first sorption wheel 34 in feed system 3.3rd power transmission shaft 19 is also provided with signal wheel 10, is provided with optoelectronic switch 101 above signal wheel 10, signal wheel 10 is circumferentially provided with induction tooth, and the quantity of induction tooth is consistent with the quantity of the first drawing-inroller 33 the first arc groove 35 circumferentially; Optoelectronic switch 101 connection signal treatment system, when signal wheel 10 rotates, induction tooth is through optoelectronic switch 101, and optoelectronic switch 101 is responded to and is equivalent to the first arc groove 35 for 1 time and turns to next position.

During the present embodiment work, capsule to be checked is sent into from feeding port, the opening 322 of cylinder shape groove 321 sidewall in the middle of storing wheel 32 enters storing wheel inside, storing wheel rotates with the 3rd power transmission shaft 19, utilize the rotation of storing wheel 32 and storing to take turns the fluctuation of dentalation 323 on 32 inwalls, make capsule to be checked produce mobile in storing wheel 32 and beat; The tubaeform targeting port 351 of the first drawing-inroller 33 the first arc groove 35 front end is circumferentially inner towards storing wheel 38, first airduct 39 is by air channel, right angle 37 extracting air in the first sorption wheel 34, be connected with air channel, right angle 37 below the adsorption orifice of the first arc groove end, make capsule to be checked be adsorbed on the first arc groove of the first drawing-inroller 33; First airduct 39 acts on the first sorption wheel 34 air port circumferentially by ventilation slot 382, ventilation slot 382 position is relative with the middle top of the first sorption wheel 34 direction of rotation, and namely the sphere of action of the first airduct 39 is the middle top of the first sorption wheel 34 direction of rotation; When capsule to be checked has departed from the sphere of action of the first airduct 39, the inwall protecting material wheel 38 can make capsule to be checked not depart from the first arc groove 35, along with the first drawing-inroller 33 rotates, capsule to be checked falls in the second arc groove 54 of the second drawing-inroller 53 from the discharging opening 381 protected below material wheel 38.

When capsule to be checked departs from the first arc groove, capsule to be checked is positioned at the first drawing-inroller 33 and the tangent position of the second drawing-inroller 53, and capsule to be checked just in time falls in the second drawing-inroller 53 the second arc groove 54 circumferentially; Second airduct 52 is by the second sorption wheel 51 arc ventilating opening 55 extracting air circumferentially, and capsule to be checked is adsorbed in the second arc groove 54 by the wind inlet 56 in the second arc groove; Now, the both ends of the surface of capsule to be checked taken by the end face camera 57 being positioned at the second drawing-inroller 53 both sides, and the image after shooting is sent to image analysis system; Second drawing-inroller 53 rotates along with second driving shaft 18, and when the second drawing-inroller 53 forwards below to, departed from the sphere of action of arc ventilating opening 55, capsule to be checked loses absorption affinity, thus departs from the second arc groove 54.

When capsule to be checked departs from the second arc groove 54, capsule to be checked is positioned at the second drawing-inroller 53 position tangent with urceolus 72, and capsule to be checked just in time falls in the hole 7221 of urceolus cylinder circle 722; Capsule bottom surface to be checked and inner core 71 touch, inner core 71 drives rotation by interior axle 17, and urceolus 72 drives rotation by outer shaft 16, inner core 71 and urceolus 72 rotating in same direction, and inner core velocity of rotation is different from urceolus velocity of rotation, rotation while capsule to be checked is driven by urceolus; Now, light source 6 is radiated on capsule to be checked through the inner core 71 that material is transparent, and capsule periphery to be checked taken by the periphery camera 4 be placed in above urceolus hole 7221, and the image of shooting is sent to image analysis system.

When image analysis system finds that there is as cracking, burr, bubble, the capsule of the flaws such as spot, signal processing system receives the number of times that optoelectronic switch 101 is responded to, thus judge which first arc groove inferior capsule is positioned at, because the second arc groove 54 on the first arc groove 35 on the first drawing-inroller 33 and the second drawing-inroller 53 and the hole 7221 of urceolus 72 are all one to one, so can judge inferior capsule is positioned at which hole 7221, and Controlling solenoid valve break-make, defect ware capsule is blown off hole 7221 by the blowning installation 8 outside urceolus 72.

During the present embodiment work, the rotating speed of inner core 71 and urceolus 72 follows following formula: m* Δ V/ =L/4.In formula: m is the distance between adjacent two holes, for the linear velocity of urceolus periphery, Δ V is the difference of the linear velocity of inner/outer tube periphery, and L is the girth of capsule to be checked.By the design of such velocity ratio, urceolus 72 can be made often to rotate a phase place, namely often move the distance of a hole, periphery camera is taken once, 90 degree that just in time can photograph capsule circumference.

Visible, the present embodiment is by strengthening , the treatment effeciency of machine can be improved; According to the girth adjustment Δ V of different capsule, can ensure that namely often take four times covers whole circumference all the time.Goal of the invention of the present utility model can be realized well.It is to be noted in addition, the present embodiment is a complete machine, in feed system 3 and end face camera system 5, is provided with negative pressure, capsule can be made to enter periphery camera system 7 in an orderly manner by grain, therefore in periphery camera system 7, negative pressure is not set.

Claims (6)

1. inferior capsule sorter, comprises substrate parts and push mechanism, and push mechanism is provided with some holes, and capsule to be checked is contained in hole, and push mechanism promotes capsule to be checked and rolls on substrate parts; Also comprise filming apparatus and image analysis system, to capsule shoot multi-frame images to be checked, by analyzing captured image to differentiate and sorting inferior capsule; It is characterized in that: substrate parts and push mechanism are all movable, and both have speed difference.

2. inferior capsule sorter as claimed in claim 1, is characterized in that: described substrate parts is light transparent member, and has light source at substrate parts.

3. inferior capsule sorter as claimed in claim 1, it is characterized in that: described substrate parts and push mechanism are cylinder shape, coaxially arrange, push mechanism is located at outside substrate parts; The periphery of push mechanism is provided with some holes for accommodating capsule to be checked, and promotes capsule to be checked and roll on the periphery of substrate parts.

4. inferior capsule sorter as claimed in claim 1, is characterized in that: described substrate parts and the equidirectional rotation of push mechanism; The velocity of rotation of push mechanism is greater than or less than the velocity of rotation of substrate parts.

5. inferior capsule sorter as claimed in claim 1, is characterized in that: the velocity of rotation of described substrate parts and push mechanism is adjustable.

6. inferior capsule sorter as claimed in claim 1, is characterized in that: described substrate parts is also connected with vacuum extractor, for the hole place of push mechanism provides negative pressure.