Three-dimensional warehouse system

Abstract

The invention provides a three-dimensional warehouse system. The three-dimensional warehouse system comprises shipping space, a ground rail and a piler, wherein the shipping space comprises cargo cells distributed in an array way; the piler comprises a vertical column; the geometric center of the cargo cells corresponds to a line positioning point on the vertical column and a row positioning point on the ground rail; the three-dimensional warehouse system also comprises a line address recognizing piece and a row address recognizing piece; the line address recognizing piece is arranged on the line positioning point; and the row address recognizing piece is arranged on the a row positioning point. A travelling positioning method of the piler is applied to the three-dimensional warehouse system; the coordinate data of the piler positioned at an original point is reset; a PLC (programmable logic controller) controls the operation of a travelling motor through a frequency changer, so as to ensure that a driving wheel is smoothly operated; the PLC collects the coordinate data of an encoder; stopping is performed till signals of a target address recognizing piece are received; and a double optical axis groove-shaped optoelectronic switch receives feedback of one signal or two signals of the target address recognizing piece, so as to perform check and hang-up prevention. The three-dimensional warehouse system has the beneficial effects that the intersection point of the row address recognizing piece and the line address recognizing piece is adopted as the geometric center of the cargo cells, and the absolute address recognizing mode guarantees the operation accuracy of the piler.

Description

technical field [0001] The invention relates to the technical field of electrical control, in particular to a three-dimensional warehouse system. Background technique [0002] The existing automated three-dimensional warehouse is composed of three-dimensional shelves, stackers, cargo boxes, ground rails, storage and exit platforms, and conveyors. There are rows of three-dimensional warehouse shelves in the automated three-dimensional warehouse. The first row of three-dimensional shelves There are cargo boxes one by one, and ground rails are set between every two rows of three-dimensional shelves. There are storage platforms and conveyors at the entry and exit ends of the ground rails, and a stacker that can travel back and forth on the ground rails. Its workflow is: [0003] Warehousing operation process: receiving warehousing operation order --> warehousing platform --> picking box --> stacker --> three-dimensional shelf --> inventory box --> returning to...

AI Technical Summary

Problems solved by technology

[0006] At present, in the positioning control of the stacker, the method of reading the goods location detection sheet is used for addressing and counting. This method has many problems and shortcomings. First, this method belongs to discrete relative addressing, and the positioning accuracy is relatively low. Low, that is, the positioning accuracy is less than or equal to 1 cm. During high-speed operation, omissions and miscalculations are prone to occur, resulting in inaccurate counting and positioning and unreliable operation; secondly, it is limited by the accuracy and sensitivity of counting and detection components. The improvement of the operating speed of the stacker is that the operating speed is less than or equal to 100-120 meters per minute. If the operating speed is high, it will cause counting errors; thirdly, this positioning method can only be based on the unit of cargo grid spacing when positioning and changing speed. Due to the discreteness of the speed change control of the distance between the cargo compartments, the operation of the stacker has a large impact, poor operation stability, low positioning accuracy, large operating noise, and large damage to the swapping equipment. These shortcomings It affects the counting reliability, positioning accuracy, running speed and efficiency, starting and braking stability, motion noise and other key parameters of the stacker

Images