Bar conveyer

Abstract

The invention provides a bar conveyer, belongs to the technical field of machining and solves the problem of insufficient and unstable clamping force of an existing crawler-type full-automatic bar feeding mechanism. The bar conveyer comprises a frame and two groups of conveyor crawler pairs, wherein the two groups of conveyer crawler pairs are oppositely arranged in parallel, and a bar clamping area is formed between the two groups of conveyer crawler pairs. Each group of the conveyor crawler pair comprises a driving wheel, a driven wheel and a crawler belt, and clamping grooves which are matched with a bar to be clamped are arranged on the surface of the crawler belt in the conveying direction of the bar. The machine frame is provided with a driving piece which can drives the driving wheel of at least one group of crawler pair to rotate. The conveyor crawler pairs are horizontally disposed and can limit and guide the bar from both sides of the bar on a horizontal plane, thereby improving the position accuracy when the bar is conveyed out.

Description

Technical field [0001] The invention belongs to the technical field of mechanical processing and relates to a bar feeder. Background technique [0002] At present, most of the cutting of metal bars is manually pushing the bars to the fixed-length backing of the cutting machine, and then punching and cutting. The existing automatic bar feeding mechanism that replaces manual work is based on the structure of a roller group. Specifically, a V-shaped groove or an arc groove is made on the outer circle of the feeding roller, and then a plurality of rollers are opposed to each other and clamped on both sides of the bar. For the bar, the motor drives the roller to push the bar to the cutting mechanism to cut it. Its structure has some shortcomings, mainly as follows: First, when the conveyed bar has a curved arc or the surface is oily, the rollers and the bar are prone to rolling and slipping, resulting in untimely or ineffective conveying; second, due to two phases There are distance...

AI Technical Summary

Problems solved by technology

Although this utility model partially solves the shortcomings of the roller group structure listed above, it cannot fully and effectively solve it, and also produces some new shortcomings, which are not conducive to actual production and application.

For example: 1. Although the track made of rubber can protect materials with low surface hardness; but because of its soft material, it will produce clamping creep, resulting in insufficient actual clamping force; when transporting hard bars or conveying When the resistance is high, the rubber track will be easily worn or broken

2. Since the structure is fixed with a set of pulleys on the upper and lower mounting plates, the clamping method is to promote the movement and clamping of the upper and lower mounting plates as a whole; instead of active clamping of the pulleys, it cannot be effectively clamped. Clamp feeding of bent bars

3. In the clamping and feeding area of ​​this structure, there are only up and down but no left and right limit guide functions, and the continuous feeding function of the front and rear bars closely connected to each other cannot be reliably realized.

4. According to the content of the patent specification, the clamping method of the structure to the bar is to use the connecting bolt to pass through the upper and lower mounting plates, and the bolts are sleeved with compression springs to act on the upper and lower mounting plates to achieve clamping; this The clamping force of this clamping method is not enough and unstable, and the operation is extremely inconvenient

5. The track made of rubber described in this structure is socketed on two rollers. When the track encounters conveying resistance, it will slip with the socketed rollers, resulting in conveying failure

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