Forming unit of door frame forming machine

Abstract

The invention discloses a forming unit of a door frame forming machine. The forming unit comprises a machine base, at least two sets of oppositely arranged machine frames are arranged on the machine base at intervals in a transversely direction; the machine frame comprises a left machine frame and a right side machine frame, a driving shaft and a driven shaft are longitudinally arranged on the machine frame, and a driving mechanism which is connected with the driving shaft and drives the driving shaft to rotate is arranged on one side of the machine frame; and a lower roller piece is arrangedon the driving shaft, an upper roller piece is arranged on the driven shaft, a forming gap capable of allowing a steel plate to pass through is formed between the lower roller piece and the upper roller piece, at least one group of driven roller pieces are arranged on the two sides of the upper roller piece, the driven roller pieces are internally provided with rotating bodies, and the driven roller pieces are arranged on the driven shaft through a rotating body in a penetrating mode. The forming unit of the door frame forming machine has the beneficial effects that the rotating bodies are arranged inside the driven roller pieces, the driven roller pieces can rotate through the rotating bodies, moreover, friction caused by contacting with the rotating bodies and the steel plate can be reduced to the maximum extent during working, the rotating bodies plays a role in protecting the surface of the steel plate and can be popularized and used.

Description

technical field [0001] The invention relates to the field of door frame molding, in particular to a molding unit of a door frame molding machine. Background technique [0002] The door frame forming machine is used to form the door frames of metal doors such as anti-theft doors and fire doors. Some manufacturers also use small door frame forming machines to make window frames. They all use cold bending forming technology to form the raw material, namely coiled steel, through cold extrusion. Have the steel plate of certain shape cross-section, existing door frame forming machine is shown in a kind of door frame forming machine such as patent number: CN204276728U announced: comprise frame, motor, reduction box, turbine case, frame is provided with several along horizontal direction. Composition type unit, the forming unit has a pressure roller shaft that fits up and down, the reducer box is connected with the output shaft of the motor, the worm gear box is connected with the o...

AI Technical Summary

Problems solved by technology

[0004] However, the forming unit of the traditional door frame forming machine (that is, the part with the upper and lower pressure rollers in the unit) uses steel plate raw materials during forming, so the requirements for the wear of steel plate raw materials are not very high during forming, and usually require no obvious scratches on the surface However, since the surface of the pre-painted and film-coated steel plate raw materials is used for cold extrusion molding, the surface is covered with a layer of film. It usually scratches the film on the surface, and some equipment settings will scratch the paint on the surface of the raw material of the steel plate after scratching the surface film, resulting in the situation that although the plate has been formed, it cannot be sold.

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