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A control system for loading parts on automatic feeding table

A technology of control system and feeding table, which is applied in loading/unloading, transportation and packaging, conveyors, etc., can solve problems affecting the efficiency of feeding, and achieve the effect of simplifying logic judgment, avoiding inaccurate loading, and real-time speed

Active Publication Date: 2019-07-16
CHINA POST SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another way to deal with it is to postpone the start time of mail and pallet communication, but this will affect the delivery efficiency

Method used

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  • A control system for loading parts on automatic feeding table
  • A control system for loading parts on automatic feeding table
  • A control system for loading parts on automatic feeding table

Examples

Experimental program
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Effect test

no. 1 example

[0062] The adjustment of running parameters mainly involves running speed and running time before acceleration. Since mail ends with V 0 Acceleration starts when the operation is later than the acceleration point, so in order to ensure that the acceleration starts at the acceleration point, the speed at which the mail runs to this point must be less than V 0 . Such as figure 2 As shown, the following relationship can be obtained:

[0063]

[0064] T L ·(V 0 -V L )=(T 0 -T L -T D )·(V S -V 0 ) (4)

[0065]

[0066] V 0 is the normal operating speed of the automatic table, V L is the adjusted operating speed, V S is the synchronous velocity and a is the acceleration. T 0 is V 0 running time, T L is V L run time, including from V 0 Decelerate to V L The running time T D . Equation (1) is the mail by V 0 Decelerate to V L time. Since the total running time is fixed, formula (2) indicates that compared with the running trajectory before adjustment, ...

no. 2 example

[0083] to V L , T L An approximate fitting solution for .

[0084] For emails that need to adjust parameters, you can first ask for a V L An approximation of:

[0085]

[0086] Use the traditional algorithm to calculate the mail in V′ L Running time T′ at running speed L .

[0087] Since this calculation does not take into account the change from V 0 to V' L The deceleration process when changing, so T L should be greater than T′ L to be long. In actual use, a correction ratio η and Simulate the effects of the deceleration process.

[0088]

[0089]

[0090] n and It is not a linear relationship, and can be adjusted in sections according to the actual situation on site during debugging. in most cases Take 75% to meet the demand.

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Abstract

The invention provides a piece feeding control system of an automatic piece supply table. A conveyor belt of the automatic piece supply table is divided into 9 subsections, namely, the first subsection, the second subsection, the third subsection, the fourth subsection, the fifth subsection, the sixth subsection, the seventh subsection, the eighth subsection and the ninth subsection. A triangular section closest to a main ring is used as the first subsection, the subsections are sorted in sequence, an inclined connection section close to the conveyor belt is used as the ninth subsection, and a measurement photoelectric portal frame is arranged between the sixth subsection and the seventh subsection and is used for measuring the size of a mail. A PLC is used as a master control CPU of a control system, the control system is in communication with a first infrared rail plate and a second infrared rail plate through a 485 bus and is in communication with a main ring PLC system through a Profinet bus, wherein the first infrared rail plate and the second infrared rail plate are installed on a rail. The displacement of the current mail on the piece supply table is detected in real time through U-shaped photoelectric sensors installed on coded discs of the subsections and is used as the basis for mail sequence number transmission and speed control.

Description

technical field [0001] The invention belongs to the technical field of logistics equipment, and in particular relates to a control system for loading parts on an automatic feeding table. Background technique [0002] The automatic feed table is one of the core equipment of the cross-belt sorter. It cooperates with the upstream belt conveyor to automatically guide the mail of a certain size and quality directly from the unloading port to the main loop through the belt conveyor. At the same time, the mail The information is sent to the main ring PLC. Since the loading position is far away from the feeding table and unattended, this puts forward higher requirements on the efficiency and loading accuracy of the automatic feeding table. [0003] The automatic feeding platform is generally eight-section or nine-section type. There are six sections between the measuring photoelectric and the main ring, and the first section is the upper section. Due to the angle between the feedin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65G65/00
CPCB65G65/005B65G2201/0285
Inventor 余飞方立国孙中阳范生淼
Owner CHINA POST SCI & TECH
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