SU1444149A1 - Safety device for wood-working machine - Google Patents

Abstract

The invention relates to the woodworking industry. The purpose of the invention is to increase safety. The safety device contains two shoulders levers 1 and 2, hinged on the body 3 of the machine. Levers 1 and 2 are connected by bolt 6. By means of levers 7, a two-arm levers 1 and 2 are attached to the guard curtain 8. Shutter 8 is mounted in the top section.

Description

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vertical guides 9. The fixing of the workpieces 4 on the work table 5 is carried out by the clamp 14 installed in the additional guides 9. When applying the blanks 4 to the work table 5, the clamp 14 is automatically lowered. In elevated condition the barrier curtain 8 is held by the stop 13. The stop 13 is mounted on the carriage and rests on the roller 12 preventing the rotation of the arms 1 and 2. When the cutting tool is turned on, the carriage 11 moves to the left. The roller 12 is released from the stop 13, and the guard curtain

8 is lowered onto the blanks 4. The carriage 11 carries out a working stroke and stops in the leftmost position. The blanks 4 are removed from the table 5, and the shutter 8 is lowered onto the surface of the table 5. The shutter 8, lowering, turns the levers 1 and 2 through the levers 7. The lever arm I presses the limit switch 10, which gives the command for the carriage 11 to reverse. Due to When the direction of movement of the carriage is perpendicular to the direction of movement of the scraper, the carriage returns when the scraper is lowered. 1 il.

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The invention relates to the woodworking industry and can be used in a pinching machine.

The purpose of the invention is to increase safety.

The drawing schematically shows a safety device for a woodworking machine, the initial position.

The safety device for a woodworking machine contains two shoulders pivoting levers 1 and 2 pivotally attached to the machine body 3 in the work area of workpieces 4, namely, above work table 5. Two shoulders levers for synchronous rotation are connected to each other by a pull 6, to the other arms the levers 1 and 2 by means of the levers 7 are hingedly hanging the guard rail 8. The guard rail 8 is mounted in additional vertical guides 9. On the body 3 of the machine there is a limit switch 10 connected to the drive control circuit the carriage 11. At the end of the lever 1, a roller 12 is fixed. On the movable carriage (not shown) of the carriage, there is a stop 13, which cooperates with the roller 12. Fixing the workpieces 4 on the work table 5 is carried out by a clamp 14. The clamp 14 is installed in additional guides 9 and It has its drive 15, and its movement is independent of the movement and position of the shutter 8. The clamp has an earring 16, by means of which it is connected to. the drive 15 of its automatic movement - raising and lowering.

The safety device operates as follows.

The workpieces 4 are fed to the work table 5. The clamp 14 is automatically lowered. In the initial position, the barrier 8 is lifted above the workpieces 4 and held in this position by the stop 13 mounted on the carriage 11, which rests on the roller 12, preventing the levers 1 and 2 from turning The limit switch 10 does not interact with the lever 1.

The operator presses the Start button on the machine control panel (not shown), and the carriage on which the cutting tool is mounted, begins to move to the left. When moving the carriage with the cutting tool and the stop 13, the roller 12 is released from the stop 13, and the lever system under its own weight is rotated clockwise, the barrier curtain 8 is lowered onto the workpiece 4. The cutting tool is fenced in this position by the clamp 14 and the lowered wiper 8. The carriage II carries out a working stroke and stops in the leftmost position.

The clamp 14 automatically rises, the finished workpieces 4 are removed from the working table 5, and the barrier slide 8 is lowered onto the receiving surface of the working table 5. The barrier curtain 8 is lowered along the vertical guides, and through the levers 7 rotates the levers 1 and 2.

 In this case, the lever arm 1 presses the limit switch 10, which gives a command to reverse the carriage 11 with the cutting tool and the stop 13, i.e. when idling carriage 11, the treatment area is completely closed by the barrier 8.

0 When the carriage returns to the initial position, the stop 13, interacting with the roller 12, lifts the shutter 8 to the initial position through a system of levers. On the desktop stack the next batch of blanks. The cycle is repeated.

5 Thus, when using the safety device of the proposed design and its connection with the carriage of a woodworking machine, it is possible to install several cutting tools on the carriage successively and process the workpiece in one pass of the carriage (perform facing, removing edges, etc.) by that the direction of movement of the carriage with the stop interacting with the lever of the scroll does not coincide with the direction of movement of the shutter itself, and therefore, perpendicular to it, and also return to Roethke to the starting position with lowered schtorke.

In addition, in the proposed device, a carriage return with a cutting tool is carried out with the scrub lowered, i.e. safety of work on the machine is ensured both during the working and idle run of the carriage.

Claims (1)

Invention Formula Safety device for woodworking machine, including a clamp mounted on it by means of guides by a guard curtain connected to the housing by means of a lever which is connected to one of the arms of the two shoulders, the carriage of the saw mechanism and the work table, characterized in that, for the purpose of safety, the device is equipped with additional guides, installed on the desktop with positioning on the clamp, and an additional lever connected to the additional double-arm lever, and the free ends of the double-arm levers are connected to each other by a pull, with a roller mounted on one of the double-arm levers, which interacts with the stop mounted on the carriage, the perpendicular guides are located the direction of movement of the carriage, and a control limit switch is installed on the body driven carriage, interacting with one of the two shoulders.