SE458808B

SE458808B - Aluminium used can sorting unit

Info

Publication number: SE458808B
Application number: SE8304260A
Authority: SE
Inventors: Dan Nilsson; Rolf Nilsson
Original assignee: Dan Nilsson; Rolf Nilsson
Priority date: 1983-08-04
Filing date: 1983-08-04
Publication date: 1989-05-08
Also published as: SE8304260L; SE8304260D0; CA1243097A

Abstract

The return appts. has aluminium cans placed in a scoop which is pivotably suspended on a shaft, and held in its normal position by a spring (6). When heavier objects are placed in the scoop, it tips downwards, and its new position is detected by a micro-switch (7). In a separate track in the scoop is a detector coil (3). A motor (21) drives via cogged wheels (20,19) and a corresp. belt (24) two screws (18) on which a movable pressure plate (10) is located. With the screw rotary movement, the movable pressure plate (10) moves to and from one (9) which is stationary, and spring-suspended with the aid of rubber cushions (25). The movable pressure plate (9) position is detected by a further micro-switch (8). The can input (15) is shaped to limit the dimensions of deformed cans which can be put into the machine, and when the cans (2) are pressed, the input aperture (15) is closed by a hatch (14) movably located on rollers (16) with guides (17). Guide plates (27) guide the pressed cans (2) to a collection vessel under the machine. (Provisional Basic advised week 85/20)

Description

10 15 20 25 30 35 40 458 8Û_8 niken bestämma vilka frekvenser som omfattas av godkända eller godkännbara burkar medan områden som ligger utanför desamma be- traktas som ej godkända och med hjälp av en styrenhet i form av exempelvis en mikroprocessor kan dessa frekvensområden för god- kända respektive ej godkända burkar lätt särskiljas och utsorte- ras. Den ovannämnda elektroniken, anpassad till detta utsortef ringssystem i returapparater för aluminiumburkar, ger en betryg- gande säkerhet vad gäller utsortering av felaktigt och ej god- känt gods. 10 15 20 25 30 35 40 458 8Û_8 determine which frequencies are covered by approved or acceptable cans while areas outside the same treated as not approved and by means of a control unit in the form of for example a microprocessor, these frequency ranges for known and non-approved cans are easily distinguished and race. The above-mentioned electronics, adapted to this output return systems in aluminum cans, provides a reassurance security with regard to the sorting out of incorrect and unacceptable known goods.

I enlighet med föreliggande uppfinning uppnås uppställda syften genom att anordningen uppvisar de i patentkraven angivna känneteckhen.In accordance with the present invention, set up is achieved purposes in that the device has those specified in the claims characteristic.

I det följande skall uppfinningen beskrivas närmare under hänvisning till bifogade ritningar, på vilka fig. 1 visar ett snitt genom en returapparat som är försedd med anordningen enligt denna uppfinning, fig. 2a visar från sidan en i anordningen ingående hållare för inmatad burk, fig. 2b visar ett snitt längs linjen A-A i fig. 2a och fig. 3 visar ett detaljerat schema över ett utförande av i anordningen ingående elektronik.In the following, the invention will be described in more detail below reference to the accompanying drawings, in which Fig. 1 shows a section through a return device provided with the device according to this invention, Fig. 2a shows from the side one included in the device holder for fed can, Fig. 2b shows a section along the line A-A in Fig. 2a and Fig. 3 show a detailed diagram of one execution of electronics included in the device.

I fig. 1 visas en returapparat för aluminiumburkar försedd med en dylik burk 2 placerad i en skopliknande hållare 1. Skopan är svängbart upphängd på en axel 5 och hålls i normalläge av en fjäder 6. vid tyngre föremål ilagda i skopan 1, tippas skopan 1 ned och det nya läget detekteras av en mikrobrytare 7. Med andra ord åstadkommas genom att skopan 1 är svängbart lagrad i sin ena ände och hålls i läge av sin fjäder 6 en avkänning av burkens vikt och om ett för tungt föremål lägges i skopan kommer denna att tippas ned och detta skopans läge detekteras av nämnda mikro- brytare 7, vars signal avkännes av en mikroprocessor.Fig. 1 shows a return apparatus for aluminum cans provided with such a can 2 placed in a bucket-like holder 1. The bucket is pivotally suspended on a shaft 5 and is held in normal position by one spring 6. for heavier objects loaded in the bucket 1, the bucket 1 is tipped down and the new mode is detected by a microswitch 7. With others words are achieved by the bucket 1 being pivotally mounted in its one end and is held in position by its spring 6 a sensing of the can weight and if a too heavy object is placed in the bucket, this will come to be tipped down and the position of this bucket is detected by said micro- switch 7, the signal of which is sensed by a microprocessor.

I särskilda spår i skopan 1 är en detektorspole 3 placerad, vilken spole är så utformad att den delvis omsluter den i skopan befintliga burken. En till denna spole ansluten elektronisk en- het, som i detalj visas i fig. 3, alstrar ett i spolen självsvängan- de elektriskt fält, vars frekvens ändras i beroende av det föremål som befinner sig i returapparatens skopliknande hållare eller in- kast. De frekvensomrâden eller -band som motsvaras av de olika aluminiumburkarnas dimensioner detekteras av elektronikenheten och en godkännandesignal går till den som styrenhet fungerande mikroprocessorn, vilken styr såväl maskinfunktionerna som utskrift av kundens pantkvitto. Föremål som ligger utanför de förutbestämda 10 15 20 25 30 35 _ ' 458 eos frekvensområdena utsorteras av mikroprocessorn och skopan 1 töms med hjälp av en dragmagnet 22 ansluten till skopan medelst länkarmar 23, till en behållare för avvisat gods, vilken icke är visad på ritningarna.In special grooves in the bucket 1 a detector coil 3 is placed, which coil is so designed that it partially encloses it in the bucket existing jar. An electronic unit connected to this coil shown in detail in Fig. 3, generates a self-oscillating coil in the coil the electric field, whose frequency changes depending on the object located in the bucket-like holder or holder of the return device throw. The frequency ranges or bands that correspond to the different ones the dimensions of the aluminum cans are detected by the electronics unit and an approval signal goes to it acting as a control unit the microprocessor, which controls both the machine functions and printing of the customer's mortgage receipt. Objects that are outside the predetermined ones 10 15 20 25 30 35 _ '458 eos the frequency ranges are sorted by the microprocessor and the bucket 1 emptied by means of a traction magnet 22 connected to the bucket by means link arms 23, to a container for rejected goods, which does not is shown in the drawings.

Anordningen innefattar vidare en motor 21 som via kugg- remshjul 20 respektive 19 och en kuggrem 24 driver två stycken skruvar 18, pâ vilka en rörlig pressplatta 10 är lagrad. Vid en rotationsrörelse på skruvarna 18 tvingas den rörliga pressplat- tan 10 att förflytta sig mot respektive från en fast pressplatta 9. Pressplattan 9 är emellertid fjädrande upphängd med hjälp av gummikuddar 25. Pressplattans 9 läge detekteras av en mikrobry- tare 8. Burkinkastet 15 är utformat att begränsa de dimensioner som föremålet kan ha för att kunna läggas in i maskinen, exempel- vis deformerade burkar. Under pressningen av burken 2 stänger en lucka 14 inkastöppningen 15 och luckan är rörligt lagrad på rul- lar 16 styrda av gejdrar 17. Ledplåtar 27 styr färdigpressade burkar 2 till en säck eller ett uppsamlingskärl under maskinen.The device further comprises a motor 21 which, via gear pulleys 20 and 19, respectively, and a toothed belt 24 drive two pieces screws 18, on which a movable press plate 10 is mounted. By a rotational movement of the screws 18, the movable press plate is forced tan 10 to move towards and from a fixed press plate, respectively 9. However, the press plate 9 is resiliently suspended by means of rubber pads 25. The position of the press plate 9 is detected by a microswitch. tare 8. The jar casing 15 is designed to limit the dimensions which the object may have in order to be loaded into the machine, e.g. vis deformed cans. During the pressing of the can 2 closes one door 14 the inlet opening 15 and the door is movably mounted on the roller. 16 guided by guides 17. Joint plates 27 guide pre-pressed cans 2 into a sack or collection container under the machine.

Presskrafterna i maskinen, som åstadkommas av skruvarna l8_upptas av ett stativ bestående av gavlar ll, 12 och sidostycken 13.The compressive forces in the machine, which are produced by the screws l8_up of a stand consisting of ends 11, 12 and side pieces 13.

Den fasta pressplattan 9 är till viss del rörligt eller fjäd- rande upphängd, och vars fjäderkaraktär är direkt proportionell mot den pålagda kraften. En mikrobrytare avkänner i sammanpress- ningens slutskede att sammanpressningskraften motsvaras av en aluminiumburk. Mikroprocessorn övervakar även att tiden för sam- manpressningen ej överskrider ett förutbestämt värde och vid fel- aktigt gods ges en signal till en elektromagnet, som tömmer sko- pan till en behållare för felaktigt gods.The fixed press plate 9 is to some extent movable or resilient. suspended, and whose spring character is directly proportional against the applied force. A microswitch detects in compressed the final stage of the compression that the compressive force corresponds to a aluminum can. The microprocessor also monitors that the time for man pressure does not exceed a predetermined value and in case of goods is given a signal to an electromagnet, which empties the pan to a container for incorrect goods.

Fig. 2 visar hur detektorspolen 3 är placerad under skopan 1 och delvis omsluter den i skopan 1 placerade burken 2 samt lag- ringen av skopan 5 och fjädern 6 som håller skopan i normalläge och efter tömning av skopan 1 återför skopan 1 till detta läge.Fig. 2 shows how the detector coil 3 is placed under the bucket 1 and partially encloses the can 2 placed in the bucket 1 and the the ring of the bucket 5 and the spring 6 which holds the bucket in normal position and after emptying the bucket 1, return the bucket 1 to this position.

Anslutningskablar 4 är förlängda och ansluts till elektroniken, som visas i fig. 3 så detaljerat att någon närmare förklaring ej erfordras. Elektroniken är så uppbyggd, att den kan justeraš att endast ge godkännandesignal för föremål som motsvarar godkända aluminiumburkar. Skopan 1 tillverkas av ett material som ej är att betrakta som elektriskt ledande, såsom termoplast och före- trädesvis glasfiberarmerad.Connection cables 4 are extended and connected to the electronics, as shown in Fig. 3 in such detail that no further explanation required. The electronics are so structured that it can be adjusted to only give approval signal for objects corresponding to approved aluminum cans. Bucket 1 is made of a material that is not to be considered as electrically conductive, such as thermoplastic and fiberglass reinforced.

Claims

4ss sas “- PATENTKRAV

Device for a return device equipped with a compression device for cans made of aluminum for detecting aluminum cans approved as return goods and thus eligible for a deposit, comprising a detector coil connected to an electronic unit for detecting primarily the material at the can opening opening of the return device. fed-in can, characterized in that on a holder (1) arranged directly inside the can-feeding opening (15) consisting of electrically insulating material for supporting the fed-in can (2) lying in the holder_ and having in cross-section substantially U- said detector coil (3) is arranged in the form of a loop which extends at least on both sides of the can (2) present in the holder (1) and in which the electronic unit generates a self-oscillating electric field with a frequency which changes depending on the object present in the holder (1) and which when it is within a frequency range predetermined for eligible aluminum cans g gives rise to an approval signal for a control unit for controlling the machine function of the return device, such as compression of the aluminum can and printing of a receipt, but which in other cases gives rise to an error signal for said control unit for sorting objects present in the holder (1), and the holder ( 1), which is pivotally mounted at one end, is held together with a patentable can in a predetermined position and sensed by a sensing means (7) in order to influence the sensing means (7) to emit a fault signal to the control unit at a position other than said predetermined position. for sorting out the object present in the holder (1), and said position deviation caused.

Device according to claim 1, characterized in that the can feeding opening (15) located above the holder (1) is adapted in shape and size to the shape and size of patentable cans (2) for preventing feeding already due to excessive severe deformation as return goods not acceptable cans.

Device according to claim 1 or 2, wherein the compression device consists of driven screws provided with a press plate displaceable by one of the screws for compressing the can against a fixed press plate, characterized in that the holder (1) carrying a pledge-bearing can in its said predetermined position and sensed by the sensing means (7) is parallel to the screws (18) of the compression device for effecting the compression while the can (2) is still supported by its holder (1). _

Device according to claim 3, characterized in that the fixed press plate (9) included in the compression device is resiliently suspended by means of rubber pads (25) or the like and is sensed by a sensing means in the form of a microswitch which senses in the final stage of compression that the compression force corresponds to that required for compressing a pledged can, and that the control unit used as a microprocessor is arranged to monitor that the time for compression is within a predetermined interval to otherwise emit a signal to an electromagnet (22). ) for the removal of goods present in the holder by swinging the holder down.