Gear rack drawing machine

Abstract

The invention discloses a gear rack drawing machine and a drive mode thereof. The gear rack drawing machine comprises a frame, a rack and a gear drawing trolley. Sliding rails are arranged on the sides of the frame, the rack is transversely and horizontally arranged at the upper end of the frame, and the gear drawing trolley is arranged at the upper end of the frame and provided with a sliding seat corresponding to the sliding rails, a drive gear matched with the rack, a drive motor, a reduction gearbox, a clutch brake and a gripping mechanism. The drive gear is arranged in the middle of the upper end of the sliding seat, the drive motor is arranged on the portion, located on one side of the drive gear, of the sliding seat, and the gripping mechanism is arranged on the portion, located on the other side of the drive gear, of the sliding seat. By means of the structural design, a gear drawing trolley drive mode is adopted rather than a traditional chain type drive mode, and the gear rack drawing trolley is adopted rather than a hook type drawing trolley. The gear rack drawing machine is novel in design, simple in structure, high in stability, low in noise and high in precision, unhooking is not likely to happen, and a die of the gear rack drawing machine is easy to assemble and disassemble.

Description

technical field [0001] The invention relates to the technical field of drawing, in particular to a rack and pinion drawing machine and its driving method. Background technique [0002] During the drawing process of the bar in the cold finishing factory, the bar needs to be sharpened first, and then the bar passes through the eye mold seat, and the clamp in the trolley clamps the bar and starts to move. Dimensions. At present, the fixture in the trolley is controlled by the first driving cylinder, and the hook on the trolley used to cooperate with the drawing track is driven by the second driving cylinder. At present, the second driving cylinder is set on the drawing trolley, but its air hole and stopper Generally, it is installed on the eye mold base. When the drawing trolley is close to the eye mold base, that is, after the second driving cylinder is aligned with the air hole, the second driving cylinder can move. Hook the hook to the drawing rail. If the drawing trolley mo...

AI Technical Summary

Problems solved by technology

[0002] During the drawing process of the bar in the cold finishing factory, the bar needs to be sharpened first, and then the bar passes through the eye mold seat, and the clamp in the trolley clamps the bar and starts to move. Dimensions. At present, the fixture in the trolley is controlled by the first driving cylinder, and the hook on the trolley used to cooperate with the drawing track is driven by the second driving cylinder. At present, the second driving cylinder is set on the drawing trolley, but its air hole and stopper Generally, it is installed on the eye mold base. When the drawing trolley is close to the eye mold base, that is, after the second driving cylinder is aligned with the air hole, the second driving cylinder can move. Hook the hook to the drawing rail. If the drawing trolley moves In the process of detaching the hook from the drawing track, it needs to be assembled manually, and because the air hole and the stopper are set on the eye mold base to make the drawing trolley close, the gap between the two is large, so when sharpening the bar head, its sharpening dimension is longer

[0003] At present, the existing drawing machines have the following problems: 1. Because the center line of the chain and the center line of the bar to be drawn do not coincide in the single chain drawing machine, an extra couple moment is generated, which seriously affects the life of the equipment; 2. . Due to the influence of the length change of the two chains, the double-chain broaching machine often has bamboo knots on the drawn bar; 3. The clamp is hinged, and there is no pre-tightening force, so the drawn bar is easy to fall off.

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