SU935269A1

SU935269A1 - Circular-sawing machine

Info

Publication number: SU935269A1
Application number: SU803212911A
Authority: SU
Inventors: Иван Тихонович Глебов; Валентин Кузьмич Пашков; Израиль Иосифович Лаевский
Original assignee: Уральский Ордена Трудового Красного Знамени Лесотехнический Институт Им.Ленинского Комсомола
Priority date: 1980-12-08
Filing date: 1980-12-08
Publication date: 1982-06-15

Description

(54 КРУГЛОПИЛЬНЫЙ СТАНОК(54 ROUND BLADE

1one

Изобретение относитс к деревообрабатывающему оборудованию и может быть использовано в круглопильных станках дл поперечной распиловки древесины.The invention relates to woodworking machinery and can be used in circular saws for transverse cutting of wood.

Известен круглопильный торцовочный станок с нижним расположением пилы, включающий коромысло с установленными на нем пильным валом и двигателем,, св занными между собой ременной передачей. Кроме того, коромысло соединено с гидроцилиндром механизма подачи. Такой станок щироко примен етс в лесопилении I.A circular saw trimmer with a lower position of the saw is known, including a yoke with a saw shaft mounted on it and an engine connected by a belt drive. In addition, the rocker is connected to the hydraulic cylinder feed mechanism. Such a machine is widely used in lumbering I.

Однако диаметр пилы данного станка зависит от ширины и толщи-ны распиливаемой заготовки и поэтому на станке устанавливают пилы большого диаметра - 700 мм и более. Это приводит к увеличению мощности привода, повышению потребл емой электроэнергии и увеличивает уровень шума на -станке.However, the diameter of the saw of this machine depends on the width and thickness of the sawn billet and therefore saws of large diameter are installed on the machine - 700 mm and more. This leads to an increase in drive power, increased power consumption, and increases the noise level on the gantry.

Известен также круглопильный станок, содержащий станину со столом, под которым с помощью шарнирного многозвенника установлена дискова пила с приводом и гидроцилиндрами подъема и горизонтального перемещени пилы. Гидроцилиндр подъема пилы обладает.возможностью измен ть длину ма тника качени торцовочной пилы и это позвол ет холостой ход пилы выполн ть под столом станка,сокраща тем самым вспомогательное врем цикла пилени 2.Also known is a circular saw, containing a frame with a table, under which a circular saw with a drive and hydraulic cylinders for lifting and horizontal movement of the saw is installed with the help of a hinged multiplier. The saw lift cylinder has the ability to change the length of the miter saw blade and this allows the saw to idle under the machine table, thereby shortening the auxiliary sawing cycle time 2.

Однако в данном станке ма тникового типа ширина распиливаемой заготовки зависит от диаметра пилы и длины ма тника. Возможность удлинени последнего ограничена и в известных станках не превышает 700 мм. Следовательно, дл распиливани However, in this swing type machine, the width of the sawn billet depends on the diameter of the saw and the length of the drill. The possibility of extending the latter is limited and in known machines does not exceed 700 mm. Therefore, for sawing

10 широких заготовок неизбежно применение пил большого даметра до мм. При этом пилы большого диаметра имеют низкую динамическую устойчивость в пропиле и создают при работе большой уровень шума 15 и снижают качество распиливаемой поверхности .10 wide blanks inevitably use large diameter saws up to mm. At the same time, large-diameter saws have a low dynamic stability in the kerf and create a high noise level of 15 when operating and reduce the quality of the surface to be cut.

Целью изобретени вл етс увеличение ширины распиливаемой заготовки, улучшение качества пропила и снижение уровн The aim of the invention is to increase the width of the sawn billet, improve the quality of the cut and reduce the level

Claims

20 - y fTarget is achieved by installing a guide bar under the machine table, and an upholster roller is mounted on the saw shaft to interact with the ruler, the multi-link is made in the form of a parallelogram, and the saw lifting cylinder is diagonally aligned, provided with an outer glass and is spring-loaded relative to it. In this case, the cup is pivotally connected with the hydraulic cylinder for horizontal movement of the saw. FIG. 1 shows a diagram of the machine, front view; see 2 - the same, side view. On the machine bed, under the table 1, a hinged linkage is made, made in the form of a parallelogram 2, which is supported by a lower hinge. fixed rack 3. In the upper part of the parallelogram in the bearing bearing, there is a saw shaft 4 with a saw 5 connected by a belt drive 6 with the engine 7. A flat guide bar 8 is rigidly fixed under the table parallel to its plane, and a stop roller is mounted on the spindle 5 9 for engaging with said ruler 8. Diagonally, the parallelogram has a hydraulic cylinder 10 lifting the saw and a cylinder 11. The hydraulic cylinder 10 is freely inserted into the glass 11, the case is supported on the spring 12 placed in the glass, and the rod is connected to the upper hinge of the parallelogram. The glass is connected to the lower hinge of the parallelogram and, in addition, is pivotally connected to the stem of the feed hydraulic cylinder 13, the body of which is fixed to the frame. The machine works as follows. The motor 7 is switched on, which, with the aid of a belt drive 6, drives the saw shaft with a saw 5 into rotation. While idling the saw is under the table. To ensure sawing, the feed mechanism must be turned on. For this, a foot is pressed. The pedal is pressed, as a result of which a command is given to supply oil to rodless cavities of hydraulic cylinders 10 and 13. The hydraulic cylinder 10 lifts the saw shaft with the saw 5, at the end of its stroke the roller 9 rests on the guide bar 8. In this position, the saw is raised above the table, is in the extreme right position. The hydraulic cylinder 13 rotates the cup and with it the articulated parallelogram 2 to the left relative to the RACK 3. The saw moves to the left while cutting. In this case, the spring 12 acts on the hydraulic cylinder 10, deforms and continuously presses the roller 9 to the guide ruler 8. The saw performs a straight feed movement relative to the table, which allows, with a small diameter of the saw, to cut wide workpieces and reduce the noise level, which depends on the diameter of the saw . At the end of the working stroke, the end switch or the same pedal gives the command to return the saw back to its original position. As a result, the oil is fed into the rod end of the cylinders 10 and 13, the rod of the hydraulic cylinder 10 is lowered, the articulated parallelogram is folded, the roller 9 moves away from the guide line, the saw goes under the table. The hydraulic cylinder 13 rotates the folded articulated parallelogram from the leftmost position to the rightmost position, i.e., to the starting position. Thus, the idling of the feed mechanism is performed under the table, which reduces the auxiliary cycle time for performing one time. When sawing narrow workpieces, the feed can be carried out ONLY by one hydraulic cylinder 10. Claim 1. The circular saw containing a table frame WITH a table under which, with the help of a hinged muller, a circular saw with a drive and hydraulic cylinders for lifting and horizontal movement of the saw are installed, characterized in that In order to increase the width of the sawn billet, improve the quality of the cut and reduce the noise level, a guide bar is installed under the machine table, and a stop roller is mounted on the saw spindle from interaction with said line, wherein the linkage is in the form of a parallelogram, and the lifting cylinder saw is mounted on its diagonal, and a glass provided with an outer spring-loaded relative thereto. 2. The machine tool according to claim 1, characterized in that the glass is pivotally connected to the hydraulic cylinder of the horizontal movement of the saw. Sources of information taken into account in the examination 1.F.Manzhos. Wood-cutting machines. M., “Forest Industry, 1974, p. 146, fig. 58.

2. The patent of France No. 2422486, cl. B 27 B 5/18, 1979 (prototype).