SE411181B

SE411181B - BALPRESS OR SIMILAR PRESS

Info

Publication number: SE411181B
Application number: SE7805043A
Authority: SE
Inventors: S L Hellquist
Original assignee: Electrolux Ab
Priority date: 1978-05-02
Filing date: 1978-05-02
Publication date: 1979-12-10
Also published as: DE2917116C2; SE7805043L; NO149579C; GB2019775A; NO791462L; GB2019775B; DE2917116A1; NO149579B

Description

ml 7805043-2 2 Pressar av den angivna typen har vanligtvis en relativt stor pressplatta. Detta innebär, att om avfallet inlägges ojämnt i behållaren eller om något stelt föremål haçm- nar intill en sidokant av pressplattan denna. snedbelastas, vilket under ogynnsaunna betingelser kan medföra omfattande skador på pressen. ml 7805043-2 2 Presses of the type specified usually have a relatively large press plate. This means that if the waste is loaded unevenly into the container or if some rigid object ends up next to a side edge of the press plate. obliquely loaded, which under unfavorable conditions can cause extensive damage to the press.

Föreliggande uppfinning har till syfte att tillhandahålla en press av det ovan angivna slaget som avkânner snedställning av pressplattan och stannar eller återför denna, när snedstâﬂningen blivit så stor, att risk för skador på pressen före- ligger. Detta syfte har uppnåtts vid en press enligt uppfinningen, såsom den defi- nieras i efterföljande patentkrav.The present invention has for its object to provide a press of the above-mentioned type which senses inclination of the press plate and stops or returns it, when the inclination has become so great that there is a risk of damage to the press. This object has been achieved in a press according to the invention, as defined in the appended claims.

Pressens fuunktion framgår av de svenska patentansökningarna 78050141-6 respek~ tive 7805014244.The function of the press is stated in Swedish patent applications 78050141-6 and 7805014244, respectively.

Pressen enligt uppfinningen konmer nu att beskrivas i anslutning till bifogade ritningar, på vilka fíg. l år en delvis skuren. frontvy av en press enligt “PPfin- _ ningen och fig. 2 år en delvis skuren sidovy av pressen.The press according to the invention will now be described in connection with the accompanying drawings, in which figs. l year a partially cut. front view of a press according to the PP invention and Fig. 2 is a partially cut side view of the press.

Som framgår av figurerna består pressen av en behållare 10 med en lucka LL ge- nom vilken en buntad bal kan uttagas. Behållaren 10 har i sin övre del skenor 12, på vilka en vagn 13 är rörlig fram och åter mellan ett läge utanför behållaren, där av*- fall kan läggas in i behållaren, och ett läge ovanför behållaren, där sammanpressning av avfallet kan genomföras.As can be seen from the figures, the press consists of a container 10 with a hatch LL through which a bundled bale can be taken out. The container 10 has in its upper part rails 12, on which a carriage 13 is movable back and forth between a position outside the container, where cases can be placed in the container, and a position above the container, where compression of the waste can be carried out.

Vagnen 13 består av ett ramverk och har en pressplatta 114 som är rörlig i verti- kalled med hjälp av kalvarna i tvâ hydrauliska cylindrar lS anbringade på. ramverket.The trolley 13 consists of a framework and has a press plate 114 which is movable in the vertical direction by means of the calves in two hydraulic cylinders 1S mounted on. framework.

Cylindrarna står i förbindelse med en hydraulisk pump 16. Vagaens ramverk har dess- utom ett par .gejdrar 17 som ingriper med en anpressningsyta 18 på behållaren, vari- genom presskraften överföres från pressplattan 114 till behållaren 10 via ramverket och gejdrarna. 17 över anpressningsytan 18.The cylinders are connected to a hydraulic pump 16. The frame of the carriage also has a pair of guides 17 which engage with a pressing surface 18 on the container, whereby the pressing force is transmitted from the pressing plate 114 to the container 10 via the frame and the guides. 17 over the pressing surface 18.

Pressplattan har dessutom ett antal vertikala, plattformade styr-ningar 19, 20, 21, 22, som löper i spårförsedda hjul 23 anbringade på ramverket. Dessa styrningar är orienterade så., att två. av dem l9, 21 år parallella med och 'belägna i närheten av 'var sin sidovägg i behållaren medan de övriga två. 20, 22'ä.r belägna vid framsidan I respektive baksidan av pressen och parallella med dessa sidor. Syftet med dessa styr- ningar âr att wipptaga snedkrafter som bildas under pressningscykeln och att i möj~ ligaste mån förhindra snedställning av pressplattan 114. Emellertid är dessa medel ej ' alltid tillräckliga. Pressplattan är därför utrustad med en vertikalt UPPSkjutande aim 21+, som har ungefär samma. längd som styrningarna. Armen har i sin övre del en mikrobrytare 25, som år kopplad till pressens elektriskakrets, så. att aktivering av brytaren åter-för pressplattan till dess övre läge. *_ Styrningen har i sin övre del i jämnhöjd med mikrobrytaren 25 på. armen 21: _ ett par kalmar 26 som kan påverka brytaren. Brytarens manöverknapp år placerad mellan dessa kaxmnar så. att påverkan åt endera hållet ger den önskademnktionen.The press plate also has a number of vertical, platform-guided guides 19, 20, 21, 22, which run in grooved wheels 23 mounted on the frame. These controls are oriented so that two. of them 19, 21 years parallel to and 'located near' were each side wall of the container while the other two. 20, 22 'are located at the front and back of the press, respectively, and parallel to these sides. The purpose of these controls is to flip tilt forces formed during the pressing cycle and to prevent tilting of the press plate 114 as much as possible. However, these means are not always sufficient. The press plate is therefore equipped with a vertically projecting aim 21+, which has approximately the same. length as the guides. The arm has in its upper part a microswitch 25, which is connected to the electrical circuit of the press, so. activating the switch returns the press plate to its upper position. The control in its upper part is flush with the microswitch 25 on. arm 21: _ a pair of calms 26 which can actuate the switch. The switch control knob is placed between these sockets. that influence in either direction gives it the desired function.

Anordningen fungerar på. följande sätt. i:The device works on. the following way. in:

Claims

'7805043-2' Waste is loaded into the container 10, when the trolley 13 is in its retracted position, i.e. next to the container. When the container is full and the pressing is to be carried out, the trolley is moved to a position above the container and the press plate is lowered by transferring oil from the hydraulic pump 16 to the cylinders 15. This is done by actuating actuators on the trolley. Normally, a press cycle is performed by sensing the oil pressure by a pressure switch, which causes the press plate, when the pressure has reached a certain value, to return to its upper position. The trolley can then be removed and the container receive new waste and the press cycle is repeated a number of times. Finally, the waste is packaged using straps that are placed around the waste, and the finished bale is tipped out through the hatch opening in the container. However, rigid objects may accompany the waste and settle near a side wall, so that the press plate rotates during the pressing cycle. As a result, the vertical arm 2h, which is fixedly connected to the press plate, also rotates to a corresponding degree while the guides 20, 22 are subjected to bending moments by resting against the wheels 23 in the carriage 13. However, the guides 20 essentially retain , 22 sin vertical. extent, whereby an angular movement occurs between the arm 21% and the guide 20. At a certain angular angle of the arm, one of the calves 26 acts on the microswitch 25, which stems the press plate and returns it. The risk of injury. due to skewed load shall arise years thus elianized. As a rule, the press plate has such a width that the guides 19, 21 absorb the forces which arise when tilting in the transverse direction, but of course it is possible to use the technique described above also to indicate. these forces about this. would be found to be desirable. The invention is not limited to the embodiment shown but can be varied within the scope of the appended claims. P a t e n t k r a v

1. A baler or similar press of the type comprising a press plate intended to be moved vertically in the direction of a bottom plate for compacting waste collected in a container, characterized in that the press is provided with a device which prevents excessive tilting of the press plate (1b), and that the device comprises one on. press plate placed, vertical arm (Et) e.d. which, when the press plate is inclined, acts on a position switch (25).

2. A press according to claim 1, characterized in that the press plate (114) has at least one vertical guide (19-22) which is adapted only for vertical movement in a part fixed relative to the container, wherein the arm (214) in the event of a tilting of the press plate (lit) will be rotated relative to the guide, so that the switch position switch (25) is actuated depending on the angular angle of the arm. vaosdus-z i ,,

Press according to Claim 1 or 2, characterized in that the guide (19-22) is mounted in wheels (23) or the like. mounted on a carriage (13), which is displaceable, slidable on horizontal rails (12) in the upper part of the press.

H. A press according to claim 1 or 2, characterized in that the limit switch (25) is mounted at the upper free of the arm (214) or the guide (19-22). End.

Press according to one of the preceding claims, characterized in that the boundary position switch (25) is arranged to return the press plate (lä) to its upper position. MENTION PUBLICATIONS: