FI118849B - Method and apparatus for handling the core - Google Patents

Description

1 118849

METHOD AND EQUIPMENT FOR HANDLING

The method and apparatus of the invention are directed to the transfer of cores to and from the cutting devices, the location of the cutting devices, and the intermediate storage of residual cores at the paper and board mills.

The logistic process for cores used as the core of paper and board reels at paper and board mills is as follows. About five to ten meters long parent sleeves are lifted, usually by a bridge crane, into bundles of size / quality.

Typically, there are two to six coats of arms in parallel. From the rods, the parent sleeves are transferred to the inlet conveyor of the cutting device in a transverse direction to the axis of rotation of the sleeve. For example, the dosing and scrolling method known or similar to DE 3912026A1 and U970446 is most commonly used in ice systems with a small number of lariers.

Particularly in multi-lobe systems, the parent sockets are retrieved • * ·. ···. the bars with a portal-based pick-up machine. Infection of the mother socket occurs with the suction cups φ · · ·: ··: The pick-up operates in the intermediate space between the bays and the bridge crane.

The pick-up machine leaves the parent socket on the conveyor, or the parent socket is brought to it by scrolling. The conveyor moves the parent sleeve in the direction of its axis of rotation to the cutting device, or saw. From the outlet side of the cutting device to the specified dimension • the sheared sleeves or sleeve sets are again moved relative to the axis of rotation • • t · * · ”*: in transverse direction through possible head processing and / or equipment positions:: ···: * to transport frames or conveyors.

*:: The cutting and rigging solutions are described, for example, in the patent publications: • US 4,716,646, FI 87344 (filed FI 894641), state of the art is well apparent from the reference list of the research report of PCT / SE88 / 00031.

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The major weakness of the known solutions is the great need for floor space. In addition, it is desired to utilize the remainder of the parent socket cut-off at a later stage. Carrying residual pieces and recycle cartridges returning automatically from the sheet cutters to the cutting equipment is problematic for space use.

Further, especially if one cutting equipment serves all the winders in the factory, it constitutes a bottleneck and a risk. Prolonged disruption to the cutting equipment can stop all production. Generally, there is unused space above the cutter and subsequent equipment, but the floor is tight. Placing two cutting equipment on the floor is a very expensive solution.

The solution of the invention provides a significant improvement on the problems described. The invention is characterized by what is stated in the characterizing parts of the independent claims.

Space utilization and uneven load on the equipment should be optimized. One parent socket pickup device is well capable of serving two cutting devices. The savings in investment costs are considerable. The logistics system becomes simple. Operational reliability is also significantly improved.

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In the following the invention will be described with reference to the drawings:

Fig. 1 shows an embodiment of the invention with parent sleeve lugs: with an output conveyor.

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Fig. 2 is a side elevational view of an arrangement of core cutting devices in one embodiment of the invention.

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Fig. 3 shows an embodiment of a sleeve cutting apparatus with a conveyor system as viewed in the direction of travel of the sleeve, with the left side cut at the inlet and the right side cut at the outlet.

In one embodiment of the invention, the parent sleeve 1 is moved from the region of the sleeve lugs 7 to the cutting means 3 or 6 for delivery by two feed conveyors 2,5 at different heights which carry the parent sleeve in the direction of its axis of rotation. The feed conveyor may be a belt conveyor or a pusher conveyor which pushes the sleeve at one end and the sleeve slides on the supporting / rotating rollers 8. A combination of the above is also possible.

1 and 2, the parent sleeve 1 is scrolled to the lower conveyor 2 and moved by the conveyor 2 for delivery to the lower cut-off device 3. Alternatively, the lifting device 4 moves the parent sleeve 1 to the upper conveyor 5, and the upper conveyor 5 moves the parent sleeve 1 further to the upper cutting device 6 for insertion.

··· * I * * Φ · ···! ...: Since the space above the socket bays 7 must be largely reserved for the use of the bridge crane 1, the lifting equipment 4 for transferring the parent sleeves 1 to the upper cut-off device is preferably telescopic · or * · · * · »*: * '* · Scissor or similar. The lifting device may also be implemented such that the engaging means are substantially secured to vertically movable chains.

: It is essential that the structural height of the 4 vertical arms of the hoisting equipment • · • »is at most not more than the vertical maximum of the gripping member | length of movement.

• · „·. If the parent sleeves 1 are moved from the bins by a pick-up machine, the pick-up machine can · · · • ·] ···. leaves the parent sockets directly on the lower or upper cut-off conveyor • · ···. In this case, of course, no separate equipment is needed, but the 4 118849 lifting equipment acts as a pick-up machine.

In one embodiment of the invention, the parent sleeve 1 is moved from the beams 7 to only one conveyor moving in the direction of the axis of rotation of the sleeve. Further transfer to the feed conveyor 19 or 20 of the lower or upper cut-off device takes place at a later stage by a technique known per se.

Residual pieces for subsequent cutting are stored, automatically, in the space adjacent to / near the inlet or outlet conveyor of the upper cutting device 6.

In one embodiment of the invention, the remainder of the sleeve pieces are moved to storage locations by the same feed conveyors or their proximity / adjacent conveyors. Most preferably, there are several storage sites side by side and / or overlapping.

Fig. 3 illustrates the passage of the sleeves to and from the cutting devices according to an embodiment of the invention. The parent sockets 1 and / or the recycling sockets · * · * · are introduced into the system, for example by one or more frames 9.

:. *, * '. * Most preferably, the cores are transferred through the scroll table dispenser combination * 10 to the vertical conveyor 11. The vertical conveyor may consist of vertical guides and. * from troughs tilted between sleds moving in them.

• · · .1 '! The vertical conveyor 11 transfers the severable cores to at least one of the feeding conveyors 19 and / or 20 of the cutting device 3 ··· and / or 6, most preferably through a scroll table dispenser assembly 12,13. The sleeves are inserted into the cutting devices by the support / steering of the rotating Z-support rollers 8: ** i most preferably by means of conveyors 19,20.

After cutting, the sleeves / sleeve sets 21 are transferred, preferably through scroll table dispenser combinations 14,15, to the vertical conveyor 16 and further to the transport frame 17.

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In one embodiment of the invention, there are two or more conveyor frames 17 side by side. The cores / core sets 21 are then moved to the respective conveyor frame utilizing the vertical conveyor 16 and the conveyor 22 parallel to the axis of rotation of the core.

In one embodiment of the invention, there may be more than one feeding device for the sleeve 1 and / or the feeding device for the sleeve 21, for example 3.6 for each cutting device.

In one embodiment of the invention, the cores 1 are introduced from the cores 7, by conveyors 2.5, through feeders 19, 20, of known transverse displacement means, not shown, and most preferably scrolling levels and dispensing means 12,13.

Embodiments of the invention may vary widely within the scope of the inventive idea. It is essential that the upper cutting device 6 is disposed such that it, or at least its cutting mechanism, is substantially disposed in the space above the lower cutting device 3, and the cutting devices are disposed horizontally adjacent to one another. Most preferably, the positioning is carried out such that the supply means of the cut-off sleeve insert and / or the cut-off sleeve / core set 21 can, at least in part, serve * O both cut-off devices 3.6. The cutting mechanism here mainly comprises j cutting blade with motor, slewing motor and support rollers 8.

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Claims (7)

A method for moving parent sleeves (1) and / or recovery sleeves and / or cutting spills into two cutting devices (3,6) and for transporting the cut sleeves / sleeve (21) from the cutting devices, characterized in that the upper cutting device (6) has is positioned so that it in its entirety or at least its cutting machinery is located in its essential parts in an upper space of the lower cutting device (3), and the cutting devices have been placed horizontally in proximity to each other most preferably, so that equipment in the cutting devices (3,6) for feeding the sleeve to be cut and / or apparatus for discharging the cut sleeve / sleeve set (21), at least partially, can serve both cutting devices (3,6). Method according to Claim 1, characterized in that the parent sleeve (1) is moved from sleeve guide (7) to the lower conveyor (2) and thereafter to be moved to the lower cutting device (3) and alternatively the lifting device (4) moves the mother sleeve (1). ) to the upper conveyor (5), and the upper conveyor (5) further moves the parent sleeve (1) to be moved to the upper cutting device (6). Method according to any of the preceding claims, characterized in that the parent sleeve (1) is moved from the lugs (7) to only one conveyor moving in the direction of the rotation axis of the sleeve and the movement further to the feed conveyor (19 or 20) in the lower (3). ) or upper (6) cutting device occurs at a later stage. Method according to any of the preceding claims, characterized in that the cut pieces from the cutting to be used later are automatically stored in a space located next to / near the feed or discharge conveyor in the upper cutting device (6), and most preferably, several storage places next to and / or on top of each other. Method according to any of the preceding claims, characterized in that a vertical conveyor (11) moves the sleeves to be cut into at least one input device (19 and / or 20) in the cutting device (3 and / or 6), most preferably by means of a combined roller table dispenser (12,13). 9 118849 Method according to one of the preceding claims, characterized in that equipment in the cutting devices (3,6) for feeding a sleeve to be cut and / or discharging the cut sleeve / sleeve set (21) can, at least partially, serve both cutting devices. (3.6). Apparatus for moving parent sleeves (1) to a conveying system which transports the parent sleeves to the upper cutting device (6), characterized in that the design height of the vertical movement organism in the lifting device (4) is at its shortest point at most the same as a vertical maximum tube length of the gripper.