RU206490U1 - A device for splitting non-flat products from thin sheet cardboard from a stack - Google Patents

Abstract

The utility model relates to devices for continuous piecewise splitting of unbonded sheet material from a stack, in particular cardboard screens. The technical result of the proposed solution is aimed at splitting non-flat cardboard products from a stack from below. The device contains a frame that provides top loading of the stack, on a frame from two opposite sides the screws are installed, made with the possibility of synchronous rotation by means of an electric drive, while the gripping grooves of the screws have different widths, increasing in the direction from top to bottom, and vertical guides fixed inside the frame.

Description

The utility model relates to devices for continuous piecewise splitting of unbonded sheet material from a stack, in particular, cardboard screens.

A device for disassembling a stack or separating sheets in a stack is known from the prior art, which comprises at least one separating device comprising a number of engaging means which, when viewed from the side of the stack, move in the feeding direction, engaging with the stack, in order to separate sheets one by one from the stack. At the upper, opposite edges of the stack, the separating devices are located in engagement with the stack. Their feeding directions are inclined inward and upward to the point above the stack (patent RU 2118609 "Method and device for disassembling a stack of sheet metal parts", IPC B65H 3/28, publ. 09/10/1998).

The disadvantages of this invention are: this invention is only able to work with flat rigid sheets (pallets) having recesses for separating the stack, the stacks, in turn, must be easily separated from each other.

From the prior art, a prototype device for separating sheet material is known, containing a frame-frame for sheet material, in the lower part on the sides of which axles with pivot bearings are mounted in a horizontal position and a mechanism for separating one sheet from a stack, including a reversible electric motor connected by a roller chain with a shaft, at the ends of which lifting units are fixed, forming a lifting and lowering mechanism (patent RU 2081805 "Automatic pallet dispensing machine", IPC B65G 59/06, publ. 20.06.1997).

The disadvantage of this invention lies in the complexity of the kinematic diagram entailing both the complexity in its manufacture and the number of parts subject to wear, resulting in a decrease in the reliability factor, and its high cost, and the complexity of its maintenance and performance monitoring.

This invention can only work with flat rigid sheets, the stacks, in turn, are capable of being easily separated from each other. Refueling the stack is possible only when the device is stopped.

A device for separating sheet material from a stack is known from the prior art (patent JPS63-17741A, 01/25/1988), which contains screws mounted on it from two opposite sides, made with the possibility of synchronous rotation by means of a drive, and vertical guides.

The disadvantage of this invention lies in the fact that the design of the device provides only a lateral way of loading a divided stack, which is impossible for cartons with open-type eggs.

The technical result of the proposed solution is aimed at splitting non-flat cardboard products from the bottom of the stack.

The technical result is achieved in that the device for splitting non-flat products made of thin sheet cardboard from a stack contains a frame that provides top loading of the stack, screws are installed on the frame from two opposite sides, made with the possibility of synchronous rotation by means of an electric drive, while the gripping grooves of the screws have different widths increasing from top to bottom, and vertical rails fixed inside the frame.

In a particular case, the technical result is also achieved by the fact that the width of the gripping grooves of the screws increasing from top to bottom has a range from 8 mm to 23 mm.

The proposed device - desteker is designed to separate the cardboard screen from the bottom of the stack. The device is installed in places where it is necessary to place or supply cardboard egg screens to the conveyor for subsequent laying of eggs, or placing them in a box for plowing (separating) layers of packed eggs in the box.

The peculiarity of dividing the foot of the casing layer for an egg made of cardboard material is the storage conditions - at high humidity, the material expands and changes its properties, becomes looser; instability of the workpiece - the quality of the container is influenced by the manufacturer's standards and the raw materials used in the manufacture.

The presence of the frame in the device provides the possibility of attaching the device to the conveyor, and the structure of the frame with the top loading of the stack does not limit its size, which makes it possible not to limit the height of the loaded stack by the structure of the device.

The presented device makes it possible to split a stack of material of various thicknesses due to the design of screws having different groove widths increasing from top to bottom (for example, cardboard with a thickness of 3 mm to 8 mm, in particular cardboard packages for open-type eggs, package dimensions 310 × 315 mm (30 eggs), 296 × 290 mm (20 eggs).

The essence of the proposed technical solution is illustrated by graphic material: Fig. 1 is a schematic side view of the device, FIG. 2 is a top view of the device, FIG. 3 - auger design.

The device contains a frame 1 with screws (screw wheels) 2 installed on it from two opposite sides, which are made with the ability to rotate synchronously by means of a drive 6 (Fig. 2).

Inside the frame 1, vertical guides 3 are fixed, ensuring the correct placement of the stack of cardboard screens 4.

A stack of cardboard screens 4 (indicated by a dotted line) is placed on top between the guides 3 so that the bottom of the stack 4 rests on the auger wheels 2. The auger wheels 2, when rotating, synchronously separate the bottom screen from the stack and bring it down, dropping onto the surface of the accompanying device, a table, pitched surface, conveyor. As the stack is used up, you can always add a stack of material without stopping the de-stacker process.

Claims (2)

1. A device for splitting non-flat products from thin sheet cardboard from a stack, characterized in that it contains a frame that provides top loading of the stack, screws are installed on the frame from two opposite sides, made with the possibility of synchronous rotation by means of an electric drive, while the gripping grooves of the screws have different width increasing from top to bottom, and vertical rails fixed to the inside of the frame. 2. A device for splitting non-planar products from thin cardboard from a stack according to claim 1, characterized in that the width of the gripping grooves of the screws increasing from top to bottom has a range from 8 mm to 23 mm.

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