RU2328370C2 - Automated line for sorting carving woods - Google Patents

Abstract

FIELD: woodworking.

SUBSTANCE: invention relates to the automated sorting of the carving woods. The automated line contains the control panel, the gate shutters, the remote sorting conveyors separated widthwise to the passages, and the reclaimers. The slantwise arranged gate shutters combined with the driving reversing conveyor separated by partitions into passages, make up the sorting table which provides, following the command from the control panel, conveying the boards in one or opposite directions to the remote sorting conveyors arranged on both sides of the sorting table. The passages of the sorting table continue to the passages of the remote sorting conveyors.

EFFECT: working efficiency of sorting line is increased.

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Description

The invention relates to the woodworking industry and can be used to create mechanisms designed for the mechanization of sorting of lumber at sawmills and woodworking enterprises, with small and medium volumes of lumber production.

Currently, at large sawmills, for sorting lumber, automated sorting lines (LSP) of domestic and foreign production are used with the transverse movement of boards by sorting conveyors. These lines have high productivity (up to 40 boards and more per minute), but are bulky (weight from 60 tons or more), and expensive. When using them, the formation of drying stacks or transport bags directly in the line stores is a big problem, therefore, packs of boards obtained during sorting must first be removed from the sorting zone and then transported for subsequent transfer with the formation of drying stacks or transport packages, their description and characteristics are given in sources (Shimkevich YB. Directory of lumbering. Publishing house "PROFIX". St. Petersburg. 2003, 195 p.), (Silaev V.I. Mechanization of work in warehouses drank materials. Moscow. Ed. "Timber Industry", 1980, 123 pp.) (analog-to-1).

In sawmills with small and medium production volumes, as a rule, “sorting sites” (cross chain conveyors) with manual sorting of boards are used. The labor costs for sorting with their use make up 30% of the labor costs of the entire sawmill. At sorting sites, like the mentioned automated sorting lines, it is practically impossible to form drying stacks and transport packages without turning and re-shifting lumber, which significantly reduces labor productivity in enterprises.

In connection with the foregoing, for enterprises of small and medium-sized lumber production, there is the problem of creating inexpensive sorting lines with the longitudinal movement of boards, since on these lines drying stacks and transport packages can be formed directly near the line, without re-shifting boards, which reduces manual unproductive labor.

Known sorting line with the longitudinal movement of lumber for small sawmills (Zanegin LA, etc. Lines for sorting lumber and beams "Woodworking industry"). No. 4, 2003, 7, 8 pp.

The line includes a longitudinal roller conveyor and cross chain conveyors with pushers for dropping boards into drives located on both sides of the roller conveyor. The need to install transverse conveyors against each pair of drives complicates and increases the cost of the sorting line. The line productivity is 5-6 boards per minute, which is not enough with average production volumes (analogue-2).

A sorting device is also known (V. Silaev. Mechanization of work in sawn timber warehouses. Moscow. Publishing house "Forest Industry". 1980, 21, 22 pp.), Made in the form of slide shutters slanted in one line. Controlled gate valves form a ramp along which the boards, when the shutters are opened, fall onto the remote conveyor belts and are transported through them to drives. Such a switchgear is simple in design and reliable, but can only service a limited number of drives, usually up to four (analog - 3), selected as a prototype.

Known drive thick boards ND-2 Shimkevich Yu.B. - St. Petersburg: ProfiKS, 2003, 162 p. “Guidelines for sawing”, in the design of which rollers with screw winding are placed and stops (panels) installed at an angle to dump lumber into drives, this device is used only as a drive for boards (analogue-4).

According to the applicant, the closest technical solution in terms of the set of coinciding features and the achieved technical result, selected as a prototype, is a sorting device (V. Silaev. Mechanization of work in lumber warehouses. Moscow. Forest Industry Publishing House. 1980, 21, 22 pp. .) analogue-3.

The technical result of the proposed technical solution is to increase the fractionation of sorting (the ability to sort by a larger number of sizes of lumber on one sorting line), simplify the design, increase the reliability of the line, while increasing the productivity of the device to meet the needs of sawmills with small and medium production volumes and the formation of drying stacks and transport packages without a turn and re-transfer of lumber, in addition to this from the case made using the claimed technical solution should be much easier compared to existing analogues and cheaper.

The claimed technical result is ensured due to the fact that the automated line for sorting lumber contains a control panel, a sorting table consisting of slanted gate valves controlled from the panel, which are installed above the drive reversible conveyor, divided by the width of the walls into the corridors, feeding boards in opposite directions to the corridors remote conveyors, which are a continuation of the corridors of the sorting table, having screw windings on the roller in places where the boards are dumped and angularly fixed stops (PDUs) for resetting sawn drives located on both sides of the conveyors remote.

The analysis of the prior art according to the patent and scientific and technical literature of the claimed technical solution did not reveal a tool that has features identical to all the features contained in the claimed solution, which allows us to conclude that it meets the criterion of "novelty" for inventions.

A comparative analysis of the claimed solution in comparison with the prototype allows us to conclude that the criterion of "inventive step", as the prior art has not identified solutions that have signs that match the distinguishing features of the claimed solution, leading to the implementation of the claimed technical result, the achievement of the specified technical result is achieved through the use of one independent technical solutions known in the art as such, namely: switchgear slide type for boards (analogue-3), reverse conveyor (analogue-1, while it is not equipped with a reverse), devices for dumping boards with rollers with screw howl shield winding and mounted at an angle greater than 90 degrees to the longitudinal axis of the longitudinal conveyor (analog-4).

The use of well-known technical solutions individually or in combination with conventional design without the use of elements of technical creativity does not allow to achieve the totality of the claimed technical results, namely:

- increase the sorting fraction from 4, in the analogue, to 12 boards, in the claimed solution, without increasing (significantly) the dimensions, and therefore the weight of the line, from 60 tons in the analogue-1, to 7-8 tons, the declared decision;

- increase the reliability of the line by simplifying its design;

- increase the productivity of the line, bringing it to 30 boards, instead of 5-6 boards, at analogue-2;

- to ensure the formation of drying stacks and transport packages without turning and re-shifting lumber, this technical result can provide, analogue-4, only as an independent unit, not as part of the sorting line.

Thus, we can draw the following conclusions: each of the known technical solutions is designed to perform individual tasks, and none of them individually or in combination allows us to obtain a technical result implemented by the claimed technical solution, therefore, we can conclude that the obtained technical results for a specialist, and, therefore, the conformity of the claimed technical solution with the criterion for inventions - "inventive step".

The claimed technical solution can be implemented in industry using standard equipment and well-known materials at any specialized engineering enterprises, and a prototype of the line has been manufactured and tested.

The claimed technical solution is illustrated by drawings.

Figure 1, 2, 3 shows a schematic diagram of a sorting table and a node for dumping lumber into drives, namely: in Fig. 1 is a general view of the line from above, in Fig. 2 is a side view along AA, in Fig. 3 - side view along BB and section BB along BB.

The line contains a sorting table, driven sorting conveyors (mainly roller), drives for boards, control panel. Boards per line are fed by a cross conveyor.

The automated line consists of a transverse feed conveyor 1, a control panel 13, a sorting table as part of a switchgear 2 with slide gates 3, dividing walls 4 forming corridors 5, a drive reversible, for example, a roller conveyor 6 and remote sorting drive conveyors 7, divided along the width of the walls 8, forming corridors 9 for directing the boards to the place of discharge into the drives 12. At the end of each corridor 9 there are shields 10 installed at an angle of more than 90 degrees to the longitudinal axis of the conveyor (preferably in the range of 95-110 degrees, with an angle of installation of boards less than 95 degrees, it is difficult to discharge boards, with angles of installation of panels more than 110 degrees their length and weight increase), while on the rollers of the drive conveyors 7 located in the places of discharge of boards 14 in the drives 12 made screw winding 11.

In the extreme sorting corridor 15 boards 14 fall with closed gates 3.

Automated line operates as follows.

The operator includes a transverse conveyor 1, the right and left sorting conveyors 7. On the feed conveyor 1, the boards 14 are located at the pushers and at the same time intervals are fed to the sorting line, while the speeds of the chains of the feed 1 and sorting conveyors 6, 7 must be synchronized.

The operator visually evaluates the board (its size, quality, grade, wood species), presses the corresponding button on the control panel 13, while the corresponding gate 3 rises on the switchgear and the reverse conveyor 6 is turned on in the desired direction. The board through the window of the raised gate 3 falls into the corresponding sorting corridor 5 and moves with the rollers to the end of the corridor 7, where it abuts against the shield 10 mounted at an angle and is discharged into the drive 12 by means of screw winding 11 made on rollers 7.

Using the proposed solution, sorting lines with sorting fractionality (standard sizes of sawn timber) from 8 to 16 can be manufactured, the technical result is achieved by:

- use of a reverse conveyor;

- increase the number of gates and sorting corridors.

At the same time, the productivity of the sorting line of the conveyor can be brought up to 30 boards per minute, depending on the needs of the customer.

Claims (1)

An automated line for sorting lumber, containing a control panel, slide gates, remote sorting conveyors, separated by width by partitions into corridors, dumping devices, characterized in that the inclined gate gates in combination with a drive reversing conveyor divided by partitions into corridors form a sorting table providing, upon command from the control panel, the supply of boards in one or opposite directions to those located on both sides of the sort the outboard sorting conveyors, while the corridors of the outgoing sorting conveyors are a continuation of the corridors of the sorting table.

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