A storage system for storing stacks of boards, which is used in a factory for manufacturing boards

Abstract

A storage system for storing stacks of boards (1) used in a factory for manufacturing boards, the storage system comprising at least one main board carrier (2) moving in a transverse direction and at least one pair of satellite board carriers (10) moving in a longitudinal direction, the satellite board carriers of the pair of satellite board carriers being arranged to move side by side and to carry the stack of boards (1) of a storage row from below, the storage row comprising three longitudinal support members, the stack of boards (1) being transferred away from or onto these storage rows. The invention is implemented such that the storage system is provided with a battery pack (12), and the longitudinal movement and lifting movement of the pair of satellite board carriers (10) are achieved by means of the energy stored in the battery pack.

Description

Technical Field

[0001] The object of the present invention is a storage system for storing stacks of boards in a factory for manufacturing particle boards, OSB boards, and MDF boards. The storage system includes at least one main board truck moving in a transverse direction and at least a pair of satellite board trucks (open-top carriages) moving in a longitudinal direction. The satellite board trucks in the pair of satellite board trucks are arranged to move side by side and carry a stack of boards in a storage row from below. The storage row includes three longitudinal supports, and the stack of boards is transferred away from or onto these storage rows.

[0002] Generally, the wood-based boards produced on a continuous-action press line are stored in an intermediate storage for a certain period of time before downstream working stages such as sanding and sawing. Background Art

[0003] In factories for manufacturing particle boards, OSB boards, and MDF boards, the typical mass of a large stack is 40 - 80 tons. The typical stack height is 3 - 5 meters, the width is 1.8 - 3.6 meters, and the length is 5 - 9 meters. The stacks in the storage system of the object of the present invention are transported by two board trucks that travel on tracks in the longitudinal direction of the storage under the stack and transfer the stack to a storage row resting on three longitudinal supports. These board trucks moving in the longitudinal direction are hereinafter referred to as "satellite board trucks", and they always operate in pairs. The stack is transferred to and removed from the storage row as follows: A pair of satellite board trucks lift the stack from the bottom surface (lower surface) of the stack so that the stack disengages from its longitudinal supports, transport the stack to the storage row, and lower the stack onto the longitudinal supports in the storage, or when removed from the storage, lower the stack onto the supports on the main board truck. The movement of the pair of satellite board trucks in the transverse direction, that is, the movement from one longitudinal row to another longitudinal row, is carried out by driving the pair of satellite board trucks onto the main board truck and then transporting the pair of satellite board trucks to the next working location, that is, to other longitudinal rows.

[0004] The power supply for the pair of satellite board trucks is arranged by means of a cable reel. In other words, there is a cable reel on the satellite board truck, and when the pair of satellite board trucks are pulled away from the main board truck, the cable unwinds from the cable reel. Correspondingly, when the pair of satellite board trucks approach the main board truck, the cable winds back onto the cable reel. However, this arrangement requires the main board truck to be at the same point in the longitudinal row during the working stage of the pair of satellite board trucks so that the cable can unwind from the reel. Since the main board truck must be at a point in the row of the pair of satellite board trucks, it cannot perform its own other working stage during the working stage of the pair of satellite board trucks but must wait for the pair of satellite board trucks to return. Summary of the Invention

[0005] The object of the present invention is to provide a novel storage system for large-scale stacking, wherein one or several pairs of satellite wagons for transporting stacks can act independently on each longitudinal row of the storage section, such that they do not physically contact the main wagon moving transversely, and wherein the main wagon can perform another task while the pair of satellite wagons is in the storage area for stacking.

[0006] Another object of the present invention is also to provide a novel storage system for large-scale stacking, wherein, in case of a possible failure, one satellite wagon can be quickly replaced by another satellite wagon without time-consuming installation and connection procedures; and / or wherein one or more satellite wagons can be repaired during production time without time-consuming installation and connection procedures.

[0007] The storage system of a factory for manufacturing particle boards, OSB boards, and MDF boards according to the present invention is characterized in that the storage system is provided with a battery pack, and the longitudinal movement and lifting movement of the pair of satellite wagons are realized by means of the energy stored in the battery pack.

[0008] A preferred embodiment of the storage system according to the present invention is characterized in that the battery pack is arranged on the satellite wagon.

[0009] Another preferred embodiment of the storage system according to the present invention is characterized in that the charging station of the battery pack is arranged on the main wagon.

[0010] Another preferred embodiment of the storage system according to the present invention is characterized in that one or more replacement stations for the battery pack are arranged on the main wagon for replacing the battery pack of the satellite wagon with a charged battery pack.

[0011] Another preferred embodiment of the storage system according to the present invention is characterized in that the main wagon has two separate replacement stations for the battery pack, one on each side of the main wagon, that is, one for each satellite wagon.

[0012] Another preferred embodiment of the storage system according to the present invention is characterized in that there are two battery packs in the battery pack replacement station of the main wagon, and they can be transferred to or removed from the satellite wagon without moving the satellite wagon in the longitudinal direction of the satellite wagon.

[0013] Another preferred embodiment of the storage system according to the present invention is characterized in that the main wagon and the satellite wagon are provided with actuators to move the battery pack from the main wagon to the satellite wagon; and vice versa.

[0014] Another preferred embodiment of the storage system according to the present invention is characterized in that the actuator is a conveyor belt system including two parallel conveyor belts.

[0015] One advantage that can be mentioned for the present invention is that the capacity of the storage system is increased because more than one storage task can be performed at least partially simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be described in more detail hereinafter with reference to the accompanying drawings, by means of some preferred embodiments.

[0017] In the drawings:

[0018] Figure 1 Fig. shows a possible storage system in which the present invention is used.

[0019] Figure 2 Fig. shows the main board cart, on top of which is a stack of boards, and below which is the satellite board cart.

[0020] Figure 3 Fig. shows Figure 2 an enlarged detail A of

[0021] Figure 4 Fig. shows the main board cart and the stack of boards on top of it.

[0022] Figure 5 Fig. shows Figure 4 an enlarged view of detail B of

[0023] Figure 6 Fig. shows a replacement & charging station for the battery pack.

[0024] Figure 7 Fig. shows a side view of the replacement & charging station for the battery pack according to Figure 6 Fig. DETAILED DESCRIPTION

[0025] Therefore, Figure 1 The storage system of a factory for manufacturing particle boards, OSB boards, and MDF boards is outlined. The stack of boards is labeled with reference numeral 1, and there are three stacks of boards in total. Of course, there can be more stacks of boards, but not all stacks are shown for the sake of clarity. Figure 1 The stack of boards at the bottom edge is located above the board cart (i.e., the main board cart 2) moving in the transverse direction. The main board cart moves along the track 3. Therefore, this direction of movement is called the transverse direction.

[0026] On the right side of the main board cart 2, a conveyor 4 is shown in the figure. The stack of boards enters and leaves the storage via the conveyor 4. The current supply for the main board cart is carried out via the cable 6 of the current supply unit 7. When the transverse board cart moves towards the current supply unit 7, the cable 6 winds onto the cable reel 5. Correspondingly, when the main board cart moves away from the current supply unit 7, the cable 6 unwinds from the cable reel 5.

[0027] Figure 1Three longitudinal storage rows 8 are shown, each storage row being formed by three longitudinal supports 9. Of course, there can be many more such storage rows 8 than three rows. In addition, they can be located on both sides of the main carriage 2. When looking at the figure, they are now only shown on the left side of the main carriage 2 here.

[0028] Figure 1 A pair of carriages is also shown, which includes two carriages 10 moving side by side in the longitudinal direction. They are hereinafter referred to as satellite carriages, and they lift and move the stack of plates from below. Figure 1 The upper part of shows a pair of satellite carriages that are moving towards or away from below the stack 1. The pair of satellite carriages 10 is capable of lifting the stack into the air and transferring it from the main carriage 2 to the storage row 8 or from the storage row 8 to the main carriage 2. Therefore, the pair of satellite carriages 10 is arranged such that one satellite carriage is located between the most central support 9 and one of the outermost supports 9. Correspondingly, the second satellite carriage is located between the most central support 9 and the other outermost support 9. Therefore, there are always two satellite carriages side by side, which are referred to as the pair of satellite carriages 10.

[0029] Figure 1 A second pair of satellite carriages is also shown, which can be slightly seen below the stack 1 on the left side. Therefore, the main carriage 2 can be arranged to serve more than one pair of satellite carriages 10. A second pair of satellite carriages is not necessarily required, but it increases the capacity, especially in a very large storage section. At Figure 1 the bottom edge of, a pair of satellite carriages 10' can also be seen, which can be used as a spare part. In other words, if the normal satellite carriage 10 fails or needs repair, one or two of the satellite carriages 10' are put into use. In the storage system according to the present invention, the commissioning of replacing the satellite carriage 10' is very easy and does not require installation work or connection work.

[0030] Figure 2 A side view of the main carriage 2 is shown. On the top of the main carriage is the stack of plates 1, and below the carriage is the pair of satellite carriages 10. When observing Figure 2 it, the main carriage thus moves from left to right and vice versa, that is, in the so-called transverse direction, while the pair of satellite carriages 10 is at a right angle to the main carriage, that is, in the so-called longitudinal direction. Figure 2 The current supply cable 6 for the main carriage and the cable reel 5 for the cable are also shown.

[0031] Figure 3 Shows Figure 2An enlarged view of Detail A. The replacement and charging station for the battery pack is labeled with reference numeral 11. The battery pack of the satellite car is labeled with reference numeral 12 itself. Here, the battery pack is referred to because in practice it includes more than one battery. Of course, the number of batteries is not limited and can also be one. Therefore, on both sides of the main car 2 there are replacement and charging stations 11 for the battery pack 12, that is Figure 3 The replacement and charging station for the left battery pack and the replacement and charging station for the right battery pack are shown. Therefore, each battery pack 12 of the satellite car 10 has its own replacement & charging station. The satellite car 10 moves in its longitudinal direction and performs a lifting movement by means of the energy stored in the battery pack. Therefore, they do not require any external fixed energy supply. When the charge of the battery pack 12 has been sufficiently reduced, the battery pack 12 is replaced in the battery pack replacement station 11 of the main car 2, where the emptied (exhausted) battery pack 12 is charged again in the charging station. In this case, the main car 2 brings the pair of satellite cars 10 to a certain storage row 8, and then can immediately move to perform another storage task while moving in a transverse direction while the pair of satellite cars 10 performs a storage task on the storage row 8.

[0032] Figure 4 The main car 2 is shown, and on top of it is the stack of plates 1. Figure 4 The satellite car 10 below the main car and the power supply cable 6 for the main car and the cable reel 5 for the cable are also shown. Figure 5 Therefore, it is shown Figure 4 Detail B. This detail shows a replacement & charging station 11 for the battery pack 12 deployed in the main car 2. In the replacement & charging station 11 there is an empty space for removing the battery pack from the satellite car 10 and correspondingly a fully charged battery pack 12 transferred to the satellite car 10. On the other side of the main car 2 there is a similar arrangement for another satellite car 10, but Figure 5 This arrangement is not shown in the figure.

[0033] The replacement & charging station for the battery pack 12 is Figure 6 and Figure 7 shown in more detail in Figure 6 In the figure, the replacement & charging station for the battery pack on the main car is labeled with arrow A, and the replacement station for the battery pack on the satellite car is labeled with arrow B. Arrow C indicates the transfer of the fully charged battery pack 12 to the satellite car. An actuator, such as a conveyor belt system 13, is provided for the transfer purpose, and the system includes two parallel conveyor belts.

[0034] Accordingly, the discharged battery pack 12 on the satellite wagon is transferred in the manner shown by arrow D to the replacement & charging station across the wagon. The transfer is again effected by means of the conveyor system 13. The bus bar (bus) for the battery pack 12 is designated by reference numeral 14. The charging current is supplied to the battery pack 12 on the side A of the across-wagon via the bus bar 14, and accordingly, current is supplied to the battery pack 12 on the side B of the satellite wagon via the bus bar 14 to operate the satellite wagon. The circuits required for these functions are not shown in the drawings as they are considered to be obvious to a person skilled in the art.

[0035] Figure 7 A side view showing the arrangement of the conveyor system 13 and the bus bar 14 for the battery pack is illustrated. The intersection between the main wagon and the satellite wagon is designated by reference numeral 15, i.e., the point where the battery pack is transferred from the replacement & charging station on the main wagon designated by arrow A to the replacement station on the satellite wagon designated by arrow B.

[0036] It is obvious to a person skilled in the art that the present invention is not limited to the above-described embodiments, but may vary within the scope of the claims shown below. A conveyor for conveying the plate stack 1 in the longitudinal direction may be installed on the main wagon 2, and the conveyor may receive and release the plate stack in the longitudinal direction without a satellite wagon pair.

Claims

1. A storage system for storing stacks (1) of sheets in a factory for manufacturing sheets, the storage system comprising at least one main sheet carriage (2) moving in a transverse direction and at least one pair of satellite sheet carriages (10) moving in a longitudinal direction, the satellite carriages of the pair of satellite carriages being arranged to move side by side and to carry from below a stack (1) of sheets of a storage row (8), the storage row comprising three longitudinal supports (9), the stack (1) being transferred away from or onto the storage row (8), the storage system being provided with a battery pack (12), the longitudinal movement and the lifting movement of the pair of satellite carriages (10) being achieved by means of the energy stored in the battery pack, the battery pack (12) being located on the satellite carriage (10), and a charging station for the battery pack being arranged on the main sheet carriage (2), characterized in that, One or more replacement stations (11) for the battery pack (12) are arranged on the main board vehicle (2) to replace the battery pack (12) of the satellite board vehicle (10) with a charged battery pack (12).

2. The storage system according to claim 1, wherein The main board vehicle (2) has two independent replacement stations (11) for the battery pack (12), one on each side of the main board vehicle (2), that is, one replacement station for each satellite board vehicle.

3. The storage system according to claim 1 or 2, wherein There are two battery packs (12) in the battery pack (12) replacement station of the main board vehicle (2), which can be transferred onto or removed from the satellite board vehicle (10) without moving the satellite board vehicle (10) in the longitudinal direction of the satellite board vehicle (10).

4. The storage system according to claim 1 or 2, wherein The main board vehicle (2) and the satellite board vehicle (10) are provided with actuators to move the battery pack (12) from the main board vehicle (2) onto the satellite board vehicle (10); and vice versa.

5. The storage system according to claim 4, characterized in that, The actuator is a conveyor belt system (13) including two parallel conveyor belts.

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