Bar rotating device and automatic bar screening and stacking machine

Abstract

The invention provides a bar rotating device and an automatic bar screening and stacking machine. The rotating device is used for rotating a bar in the axial direction of the bar. The rotating devicecomprises an X-direction sliding rail, an X-direction moving frame installed on the X-direction sliding rail, and a rotating device lifting frame installed on the X-direction moving frame and capableof lifting up and down relative to the X-direction moving frame, the rotating device lifting frame is provided with a rotating motor and a transmission wheel assembly installed on an output shaft of the rotating motor, the transmission wheel assembly and an output shaft of the rotating motor are coaxially arranged, the transmission wheels are installed at two ends of the rotating shaft, the rotating device lifting frame is further provided with two coaxially-arranged rotating wheels arranged in the left-right direction, the two rotating wheels are in transmission connection with the two transmission wheels through transmission belts correspondingly, and the two rotating wheels drive clamping air cylinders to rotate correspondingly.

Description

technical field [0001] The application relates to a bar rotating device and an automatic bar screening and stacking machine. Background technique [0002] Rods generally refer to a material product whose cross-sectional shape is a simple figure such as a circle, square, hexagon, octagon, etc., and whose length is relatively large compared to the cross-sectional size, and is usually provided in a straight strip. [0003] In the prior art, the bar needs to be placed in the mold, and the placing process is usually done manually. When stacking bars, it is usually laid layer by layer, and the upper layer of bars is laid on the lower layer of bars. Taking the bar with a hexagonal cross-section as an example, the upper surfaces of two adjacent bars in the same layer just form a circle. The installation groove for a hexagonal rod can be installed, and the rods can be installed in the installation groove in turn to complete the laying of the upper layer of rods. [0004] However, t...

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Problems solved by technology

[0004] However, the existing manual operation will have the following defects: due to the tolerance of the diameter of the rods, when laying manually, it cannot be guaranteed that the total width of a layer of rods after laying is just matched with the mold. There is a gap, and the rods will shake in the mold during transportation, which will cause the wear of the rods; when laying the upper rods in the lower rods one by one, it is necessary to select the appropriate size of the rods and the installation groove of the lower layer Matching, this process is very difficult to select by the naked eye, and it needs to be manually tried one by one

Taking the hexagonal bar as an example, there is also a tolerance between the distances between the opposite sides of each bar section, so not only must the appropriate bar be rotated, but also the placement angle of the bar needs to be adjusted to achieve the most suitable position, if This result is completed only by manpower, which is time-consuming, labor-intensive and inefficient

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