EP3415305A1 - Stationary waste compression unit for connection with a mobile interchangeable container - Google Patents

Abstract

Stationary waste press unit (100) for connection to a mobile swap body (200), which comprises at least:
- A base frame (109) having a bottom (101);
- a hopper (102) having at least one rear wall (105) and side walls (103), the bottom (101) and the hopper (102) forming a refuse feed space;
- A press plate (130) which is displaceable over at least one multi-cylinder unit (110) over the bottom (101), wherein the multi-cylinder unit (110) at least two at their cylinder housings (111, 112) interconnected hydraulic cylinder (111, 112) , wherein the one hydraulic cylinder (112) with its piston rod (112.2) is supported on the pressure plate (130) and the other hydraulic cylinder (111) with its piston rod (111.2) on the base frame (109, 107) is supported.

There are two multi-cylinder units (110) provided:
each disposed close to the sidewalls (103) of the hopper (102) and laterally outboard of the work area swept by the platen (130);
- And with sliding and / or guide means (103, 104) is provided, which in each case at least one fixed to the waste press unit (100) mounted slide and / or guide rail (150, 151, 152) are guided, which are parallel extends to the feed direction of the press plate (130).

Description

The invention relates to a stationary waste press unit for connection to a mobile interchangeable container with the features of the preamble of claim 1.

There are waste containers with integrated waste press known to compress the thrown into a hopper of the container waste and thus to better exploit the loading capacity of the container can. This is especially true for large-volume waste such as cardboard. In mobile interchangeable containers, however, a not inconsiderable part of the available container volume is required for the arrangement of the press unit and its drive, so that it is uneconomical to form the press unit with the drive as a fixed part of the container, which must always be transported.

Whenever large quantities of compressible waste regularly occur, stationary waste presses are used which can be coupled with a mobile interchangeable container. The amount of waste discharged at the hopper of the stationary waste compacting unit is deposited at the bottom of pushed a punch into the interior of the interchangeable container. The actual recompression takes place only when the container volume is already filled with uncompressed waste. If a further re-compaction is no longer possible with increasing filling, the feed opening of the interchangeable container, into which the press die of the stationary press unit acts, is closed, and the interchangeable container can be driven off. Subsequently, another, empty change container is positioned in front of the stationary press unit. The press unit protrudes with its bottom plate through the feed opening slightly into the interior of the interchangeable container, so that the plunger can be pushed into the beginning of the interior of the container. The overlapping floor also covers the parting line, thereby avoiding waste between the press unit and the interchangeable container unit placed in front of it.

A generic waste press unit shows EP 472 870 A1 , The plunger is in this case formed in two parts and has a lower pressure plate which is fixedly connected to a feed unit, and a movable plunger which is connected in the rear region of the pressure plate movable and cooperates with a curved rear wall at the hopper. Upon retraction of the plunger, the movable part scraps the floor and slides under any waste left over from the floor, or under pieces of waste placed by the user in the hopper during the advancing movement of the plunger already begun. If the moving part reaches the curved rear wall, it follows its contour and folds up, so that the waste residues resting on the moving part are thrown off the arranged pressing plate.

In order to create a sufficiently large hopper, with a convenient task of the waste to be disposed of is possible and in which the function of the movable pressure plate is guaranteed, must be a corresponding be provided large axial stroke. This leads to a correspondingly large axial length of the waste press unit, since the extension length of the hydraulic cylinders, which are suitable as the only drive means in a rough working environment to apply the high forces for pressing waste, is usually less than half the piston length, often only 40% the piston length.

Another problem is that tilting of the pressure plate during pressing must be avoided. Cross-shaped drive arrangements are known from the prior art, in which two hydraulic cylinders are arranged crosswise, so that the same force is always exerted on both sides of the shield when the oil circuits of the hydraulic cylinders are connected to each other.

From the FR 2 979 073 A1 is known a stationary waste press for connection to a swap body, in which a significant reduction in the axial length is achieved, so that it is particularly possible to abandon waste from the front side at the back. The user no longer has to approach the waste press sideways to drop into the hopper. The stationary press unit can thus be set up to save space, for example at a loading dock. The reduction of the axial length is achieved in that a plurality of hydraulic cylinders are mechanically fixed to their respective cylinder elements and extend their piston rods in opposite directions. The unit of the interconnected cylinders is levitating, while the piston rods are supported on the bearings on the rear wall of the housing or on the press plate. In order to counteract the second problem mentioned above, namely to prevent tilting of the pressure plate during the feed movement, a multi-cylinder unit is provided. This is a mirror-symmetrical arrangement of a central hydraulic cylinder and two auxiliary hydraulic cylinders provided. The central one Hydraulic cylinder is supported on the back of the housing of the press unit, while the arranged on both sides of the central hydraulic cylinder slave cylinder are connected to the press plate. By this mirror-symmetrical arrangement with two secondary cylinders that guide the pressure plate and between which there is a certain Abstützbreite, tilting should be avoided. In practice, however, it has been shown that the distance between the two bearings on the secondary cylinders in relation to the width of the pressure plate is not sufficient to effectively prevent tilting. Another disadvantage is that no moving press piston is more usable for cleaning the floor, since the rear space is required behind the press plate for the arrangement and movement of the multi-cylinder unit.

The object of the present invention is therefore to allow a uniform and tilt-free guidance of the press plate with reduced axial length of the stationary press unit for a mobile swap body.

This object is achieved by a stationary waste press unit with the features of claim 1.

"Stationary" in the sense of the present invention means that there is no fixed constructive connection with the interchangeable container; however, temporary, detachable connections to the interchangeable container during press operation are possible. A stationary installation is therefore just as possible as the fixed mounting on a mobile platform.

For orientation in the sense of the present invention, the front side in the following is that end face which is to be turned to the mobile exchange container and at which the waste gripped by the pressing plate is pushed out. The rear or rear side is located on the opposite end face on the particular rectangular base frame on which the waste press unit is constructed.

The invention provides two multi-cylinder units, which are arranged completely outside of the swept by the plunger surface area, so that the use of the proven two-piece folding plunger is still possible. The multi-cylinder units with their acting on opposite sides of the piston rods lead to a halving of the axial length compared to conventional waste press units.

Compared with the known waste press the advantage in the invention also lies in the fact that the forces exerted by the multi-cylinder units, in each case attach to the outside of the press plate and that the press plate is arranged with its entire working width between the lines of action of the outside arranged multi-cylinder units. Due to the lateral arrangement, the drives can be almost completely shielded from the waste disposal space. The working width is that part of the floor area which is bounded by the side walls and can be moved and compressed on the waste.

Preferably, only a laterally directly connected to the press plate bearing bracket protrudes through a slot recess in the inner side wall of the hopper, while the camp on the bearing bracket to which the multi-cylinder unit is connected, is already shielded by the inner side wall of the hopper.

Preferably, an outer side wall is also provided to prevent users from outside can engage in the drive, and / or to protect the drive from the weather. The multi-cylinder units then move in a gap between the outer sidewall and the inner sidewall of the hopper.

In order to achieve that the pressure plate is guided tightly over the bottom area of the hopper and can not slide on there lying waste and ascend, is additionally provided according to the invention that the bearing bracket of the press plate at least in the area of the bearing and / / or the base unit of the multi-cylinder unit with the two cylinders coupled to each other are guided in rails or guided along slide rails. The slide rails are arranged on the outside of the feed hopper, preferably in said space between the inner and the outer side wall. In particular, it is provided to provide the bearing point and / or the base unit with sliding plates, which are arranged pointing upwards and downwards. By the side guides appropriate sliding surfaces are provided, on which the parts can slide along, should it come to a rise of the pressure plate. Otherwise, the sliding elements can run without contact through the rails. It is also possible to deliberately move the pressure plate hanging in the side guides, so that it is avoided that the pressure plate scrapes immediately above the ground.

Further preferably, the waste compacting unit according to the invention provides that at the end points of the piston rods, the bearing axes are each aligned so that they are perpendicular to each other. For example, the front piston rod, which is connected to the pressure plate, be connected on a vertical axis with the bearing bracket on the press plate, while the rear piston rod, which is supported on the base frame, is connected to a bearing with a horizontal axis. By this offset by 90 ° arrangement of the axes all occurring in operation misalignments between the stationary frame, the multi-cylinder unit and the press plate can be compensated. Tension is effectively avoided and the harsh working environment is taken into account.

Fig. 1

eine stationäre Abfallpresseneinheit mit einem mobilen Wechselcontainer von schräg hinten,

Fig. 2

die stationäre Abfallpresseneinheit mit zurückgezogenem Pressschild von schräg hinten,

Fig. 3

die stationäre Abfallpresseneinheit mit vorgeschobenem Pressschild von schräg hinten und

Fig. 4

die stationäre Abfallpresseneinheit mit vorgeschobenem Pressschild von schräg vorn.

The invention will be explained in more detail with reference to the drawings. The figures show each in a sectional perspective view:

Fig. 1

a stationary waste press unit with a mobile change container from diagonally behind,

Fig. 2

the stationary waste press unit with retracted pressure plate from obliquely behind,

Fig. 3

the stationary waste press unit with advanced press plate from diagonally behind and

Fig. 4

the stationary waste press unit with forward pressure plate from diagonally forward.

FIG. 1 shows a stationary waste press unit 100 with a removable mobile container 200.

The interchangeable container 200 comprises a closed bottom 201, side walls 202, a rear wall 203 and a roof 204. A front wall 205 closes only the upper part of the height of the interchangeable container 200, while leaving below a supply opening 206 which extends almost the entire width of the interior extends.

• einen auf einem Grundrahmen 109 aufliegenden, ebenen Boden 101,
• einen Aufgabetrichter 102 mit Seitenwänden 103 und einer gebogenen Rückwand 105 und
• einen rückwärtigen Stützrahmen 107.

The waste press unit 100 comprises at least:

• a resting on a base frame 109, flat bottom 101,
• a hopper 102 with side walls 103 and a curved rear wall 105 and
• a rear support frame 107.

In the side walls 103 of the hopper 102 each have a slot recess 104 is introduced. Behind it is a guide rail 150. Within the hopper 102, a pressure plate 130 with a blade 131 is arranged. In the in FIG. 1 illustrated position of the pressure plate 130 is the blade 131, due to the curved shape of the rear wall 105, pivoted upwards, so that any resting on it waste is thrown back to the bottom 101. Between the vertical support frame 107 at the back of the base frame 109 and the press plate 130, a multi-cylinder unit 110 is arranged with two hydraulic cylinders, which cause the advancement of the press plate 130. On the other, On the right side is also provided such a multi-cylinder unit, which is not shown here for reasons of clarity here and in the following figures. Also not shown are the oil lines that are performed with a drag chain to the base group of the drive with the two associated hydraulic cylinders.

FIG. 2 shows the waste press unit 100 from the same perspective in an enlarged view and without the removable container 200. In the region of the side wall 103 of the hopper 102 is here in particular the guide rail 150 visible, which is arranged behind the slot recess 104. Above this, sliding surfaces 151, 152 are formed, which are arranged at right angles to the vertical side wall.

In the front area, the individual parts of the multi-cylinder unit 110 can be seen. The two cylinder housing 111.1, 112.1 are firmly connected. They have upwardly and downwardly facing sliding members 113, 114. The lower hydraulic cylinder 111 is connected to a bearing 106 with a horizontal bearing axis pivotally connected to the support frame 107. The upper hydraulic cylinder 112 is pivotally connected via a vertical bearing 121 to a bearing bracket 120, which protrudes laterally beyond the press plate 130. Characterized in that the axes of the bearings 121, 106 offset by 90 ° to each other, the multi-cylinder unit 110 is articulated in two spatial orientations, so that misalignment and resulting stresses are avoided.

The bearing bracket 120, like the multi-cylinder unit 110 also, is provided with upwardly and downwardly facing sliding members 123. The package of bearing console 120 and sliding elements 123 is guided in the guide rail 150, while the base group of the multi-cylinder unit 110, which comprises the two cylinder housings 111, 112, is guided via the slide plates 113, 114 between the superposed slide rails 151, 152.

FIG. 3 again shows the stationary waste press unit 100 from the same perspective as in Fig. 2 However, this time with advanced pressing plate 130. The movable blade 131 rests on the floor 101. This has an acute-angled scraper edge 132, which engages the waste on the bottom 101 during the return stroke of the press plate 130. At the end of a return stroke, the blade 131 with the acute-angled scraper edge 132 folds upwards, so that the waste that has been attacked by the blade is conveyed in front of the pressure plate 130.

The multi-cylinder unit 110 is fully extended, so that its piston rods 111.2, 112.2 outside the cylinder housing 111.1, 112.1 are visible. Through the slot recess 104 in the side wall 103 of the hopper 102, it can be seen that the guide rail 150 only extends to the rear as far as is necessary for the guidance of the bearing bracket 21 to the rearmost retraction point of the press plate 130. The guide rail 150 therefore ends in a central region of the length of the hopper 102 in order not to hinder the movements of the base group with the two cylinder housings 112.1, 111.1 of the multi-cylinder unit 110.

In FIG. 4 is the same situation of the stationary waste press unit 100 as in FIG FIG. 3 shown, but with parts of the attached mobile removable container 200 and more with a view from the front, on the opening 206 in the front wall 205 and the front of the press shield 130th

• Die Gleitschiene 151 befindet sich in dem Paket von Gleitschienen oben und ist nach unten weisend ausgerichtet. Sie dient als Anlage für die oberen Gleitelemente 114 an der Multizylindereinheit 110.
• Die untere Gleitschiene 152 ist nach oben weisend ausgerichtet und dient als Anlage für die unteren Gleitelemente 113 an der Multizylindereinheit 110.
• Zwischen den Gleitschienen 151, 152 befindet sich eine Führungsschiene 150, die als U-förmiges Profil ausgebildet ist, welches sich zur Schlitzausnehmung 104 hin öffnet. In der Führungsschiene 150 wird die Lagerkonsole 120 mit dem Lager 121 und dem Gelenkkopf der Kolbenstange 111.1 des oberen Hydraulikzylinders geführt.

The press plate 130 is in the foremost position, in which it protrudes slightly into the feed opening 205 in the interchangeable container 200. From this view, in the region of the right side wall of the waste press unit 100, the arrangement of the slide rails becomes clear in particular:

• The slide rail 151 is located in the package of slide rails at the top and is oriented downwardly. It serves as a system for the upper sliding elements 114 on the multi-cylinder unit 110.
• The lower slide rail 152 is oriented upwardly and serves as abutment for the lower sliding elements 113 on the multi-cylinder unit 110.
• Between the slide rails 151, 152 is a guide rail 150, which is formed as a U-shaped profile, which opens to the slot recess 104 back. In the guide rail 150, the bearing bracket 120 is guided with the bearing 121 and the condyle of the piston rod 111.1 of the upper hydraulic cylinder.

Claims (8)

Stationary waste press unit (100) for connection to a mobile swap body (200),
which at least includes: - A base frame (109) having a bottom (101); - a hopper (102) having at least one rear wall (105) and side walls (103), the bottom (101) and the hopper (102) forming a refuse feed space; - A press plate (130) which is displaceable over at least one multi-cylinder unit (110) over the bottom (101), wherein the multi-cylinder unit (110) at least two at their cylinder housings (111, 112) interconnected hydraulic cylinder (111, 112) wherein the one hydraulic cylinder (112) is supported with its piston rod (112.2) on the pressure plate (130) and the other hydraulic cylinder (111) with its piston rod (111.2) is supported on the base frame (109, 107), characterized in that two multi-cylinder units (110) are provided: each disposed close to the sidewalls (103) of the hopper (102) and laterally outboard of the work area swept by the platen (130); - And with sliding and / or guide means (103, 104) is provided, which in each case at least one fixed to the waste press unit (100) mounted slide and / or guide rail (150, 151, 152) are guided, which are parallel extends to the feed direction of the press plate (130). Waste press unit (100) according to claim 1, characterized in that at least one bearing bracket (120) laterally adjoins the pressure plate (130), at the bearing (121), the multi-cylinder unit (110) is hingedly connected. Waste press unit (100) according to claim 2, characterized in that on the side walls (103) in each case at least one slot recess (104) is formed, behind which a guide rail (150) for guiding the bearing bracket (120) is arranged. Waste press unit (100) according to one of claims 1 to 3, characterized - That in each case at least two vertically superimposed slide rails (151, 152) are provided, between which the multi-cylinder unit (110) is guided, and - That the guide means by sliding plates (103, 104) are formed, each of which at least one at the top and one on the underside of the multi-cylinder unit (110) is arranged. Waste compacting unit (100) according to one of the preceding claims, characterized in that the multi-cylinder unit (110) in each case: - Via a bearing (121) with the press plate (130) and - Via a bearing (106) with the base frame (106) or with a support frame (107) articulated is connected. Waste press unit (100) according to any one of the preceding claims, characterized in that the axes of the bearings (106, 121) offset by 90 ° to each other. Waste press unit (100) according to one of the preceding claims, characterized in that the pressure plate (130) has a movable blade (131) on its rear side. A garbage compacting unit (100) according to claim 7, characterized in that the movable blade (131) points in the direction of the return stroke of the pressure plate (130) has an acute-angled scraper edge (132) which rests on the bottom (101).

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