KR102477602B1 - Goods spacing control system - Google Patents

Abstract

The present invention relates to a system for adjusts the gap between goods being transported on a conveyor and, more specifically, to a system for optimizing a cargo gap to improve cargo sorting performance, which can appropriately adjust the gap between goods so that the maximum number of goods per hour can be handled without error in a sorter. The system for optimizing a cargo gap to improve cargo sorting performance comprises: a lead-in conveyor on which goods are placed and which transfers the goods; a minimum gap generation conveyor which is connected to the lead-in conveyor and transfers the goods at a higher speed than the lead-in conveyor to secure a minimum gap between the goods; and a dynamic gapping conveyor which is connected to the minimum gap generation conveyor, of which the section has sensors for detecting the goods being transferred, and which adjusts the transfer speed of the goods in response to a signal detected by the sensor so that the gap between the goods is adjusted to a reference gap.

Description

Cargo spacing optimization system for improving cargo sorting performance {Goods spacing control system}

The present invention relates to a system for adjusting the distance between articles conveyed on a conveyor, and more particularly, to a sorter that adjusts the distance between articles to an appropriate interval so that the maximum number of articles per hour can be processed without error. Cargo sorting performance It relates to a cargo spacing optimization system for improvement.

In general, courier goods are gathered at a hub terminal or sub-terminal, sorted by delivery destination at the terminal, and then delivered to the courier recipient. The market has also grown rapidly year by year, and accordingly, each delivery company has begun to pay attention to ways to improve the accuracy of product classification and the efficiency of the product classification process.

Looking at the process of sorting courier items at the terminal, courier items collected from courier senders are put on the conveyor, the items pass through the scanner while moving along the conveyor, and the items that pass through the scanner are placed in the sorter. Categorized by shipping destination.

In order to sort products without errors in the sorter, an appropriate gap between products is required.

When a worker puts an article on the conveyor at the inlet of the conveyor with this proper interval in mind, the sorting and processing speed of the article is significantly reduced, and it is practically impossible for the worker to put the article on the conveyor at an appropriate interval.

Therefore, it is urgently needed to develop a technology that allows workers to put items on a conveyor within the range of not overlapping each other without considering proper spacing, and to automatically adjust the distance between items in the process of moving items on the conveyor before entering the sorter. .

For reference, this is a technology that sorts goods while moving them through a conveyor. Registered Patent No. 10-2390557 "Cargo Sorting System and Control Method", Registered Patent No. 10-2090662 "Cargo Spacing Optimization System and Method for Improving Cargo Sorting Performance of Conveyor Belts" ", etc. have been initiated.

The present invention is an invention devised by the above necessity, and the distance between articles is automatically adjusted to an appropriate interval in the process of conveying the articles put on the conveyor by the workers to the sorter, so that the sorting and processing speed of the articles is fast and in the process An object of the present invention is to provide a cargo spacing optimization system for improving cargo sorting performance that prevents errors from occurring.

In addition, the conveyor is installed on a mounting table with excellent buffering efficiency to provide a cargo spacing optimization system for improving cargo sorting performance that prevents items from being damaged or arbitrarily changing the spacing of items adjusted to an appropriate interval in the process of being transported on the conveyor. for another purpose.

Cargo spacing optimization system for improving cargo sorting performance according to the present invention for achieving the above object is

An inlet conveyor on which articles are lifted and transported;

a minimum gap creation conveyor connected to the inlet conveyor and transporting articles at a higher speed than the inlet conveyor to secure a minimum distance between articles;

It is connected to the minimum gap generation conveyor, and a detection sensor for detecting an article to be transported is provided in the section, and the conveying speed of the article is adjusted according to the detection signal of the detection sensor so that the distance between articles is adjusted to a standard interval. Dynamic gapping A conveyor; is made including.

and a scanner conveyor for passing items through the scanner;

A speed correction conveyor that connects the scanner conveyor and the dynamic gapping conveyor and reduces the difference between the article conveying speed in the dynamic gapping conveyor and the article conveying speed in the scanner conveyor when the difference is greater than or equal to a reference speed difference. characterized,

The dynamic gapping conveyor is characterized in that the rotational speed of the drive rollers is individually adjusted,

Further comprising a mounting table on which the inlet conveyor, the minimum gap generating conveyor, and the dynamic gapping conveyor are installed,

The mounting table includes a floor plate installed on the floor, a buffer plate disposed on the floor plate and on which the inlet conveyor, minimum gap generating conveyor, or dynamic gapping conveyor is installed, and a buffer plate interposed here and there between the floor plate and the buffer plate. It is characterized in that it comprises a buffer spring for absorbing the impact applied to the buffer plate, and a shock dispersion means for uniformly distributing the impact applied to the buffer plate to the entire buffer plate.

According to the cargo spacing optimization system for improving cargo sorting performance according to the present invention, workers only need to place the items on the inlet conveyor so that they do not overlap each other without considering the proper spacing, so that the loading work is convenient and the items placed on the conveyor In the process of being transported to the sorter, it is automatically adjusted at an appropriate interval, so the sorting and processing speed of the items is fast and there is no error in sorting. As a system that can prevent damage or gap change, it is a very useful invention for industrial development.

1 is a schematic plan view looking down from the top of a cargo spacing optimization system for improving cargo sorting performance according to the present invention.
2 is a perspective view of a mount according to the present invention;
Figure 3 is an exploded perspective view of Figure 2;
Figure 4 is a cross-sectional view of Figure 2;

Hereinafter, a cargo spacing optimization system for improving cargo sorting performance according to the present invention will be described in detail with reference to the drawings.

Prior to a more detailed description of the cargo spacing optimization system for improving cargo sorting performance according to the present invention,

Since the present invention can have various changes and various forms, the implementation examples (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to a specific form disclosed, and should be understood to include all modifications, equivalents, or substitutes included in the spirit and scope of the present invention.

In each drawing, the same reference numeral, in particular, the same number of tens and ones digits, or the same reference numerals having the same tens digit, ones digit, and alphabet indicate members having the same or similar functions, and unless otherwise specified, each of the drawings Members indicated by reference numerals may be understood as members conforming to these standards.

In addition, the components in each drawing are expressed in exaggeratedly large (or thick) small (or thin) or simplified expressions in size or thickness in consideration of convenience of understanding, etc., but the scope of protection of the present invention is thereby limited. It shouldn't be.

Terms used in this specification are only used to describe a specific embodiment (aspect, aspect, aspect) (or embodiment), and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as ~comprising~ or ~consisting of are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

As shown in FIG. 1, the cargo spacing optimization system for improving cargo sorting performance according to the present invention includes inlet conveyors 11 and 12, a minimum gap generation conveyor 13, a dynamic gapping conveyor 14, and a speed correction conveyor 15 , The scanner conveyor 16, the sorter 20, the branch conveyors 21, 22, 23, the scanner 30, the detection sensor 40, and the controller 50 are included.

The inlet conveyors 11 and 12, the minimum gap generation conveyor 13, the dynamic gapping conveyor 14, the speed compensation conveyor 15, and the scanner conveyor 16 are connected in a row and placed on the inlet conveyors 11 and 12. Items that have been lost are transported on these conveyors and enter the sorter 20, and the sorter 20 transfers the entered items to branch conveyors 21, 22, and 23 according to the sorted destination among a plurality of branch conveyors 21, 22, and 23. ) is sent to

The inlet conveyors 11 and 12 are loaded with articles by a worker and transported with the articles.

The inlet conveyors 11 and 12 are relatively longer than other conveyors to secure a work space for workers and to load a large number of items.

Workers need only place the articles on the inlet conveyors 11 and 12 while preventing the articles from overlapping each other, without considering the appropriate distance between the objects.

The inlet conveyors 11 and 12 may consist of a conveyor 1 11 for transporting goods at a low speed and a conveyor 2 12 connected to the conveyor 1 11 and transporting goods at a slightly higher speed. can

The minimum gap generating conveyor 13 is connected to the inlet conveyors 11 and 12 and transfers articles at a higher speed than the inlet conveyors 11 and 12 to secure a minimum distance between articles.

Items overlapping each other may occur as workers place the items on the intake conveyors 11 and 12, and the items may overlap due to the movement of the items due to the impact applied while the items are being transported on the intake conveyors 11 and 12. .

When the items overlap, the detection sensor 40 cannot distinguish between the two overlapping items and can detect them as one item. Then, misclassification of goods occurs. So it is necessary to ensure that the items do not overlap.

The minimum gap creation conveyor 13 transports articles at a higher speed than the inlet conveyors 11 and 12, thereby widening the distance between the articles that have entered the minimum gap creation conveyor 13 and the articles that have not yet entered, and between the two articles. ensure that the minimum spacing is secured.

The dynamic gapping conveyor 14 is connected to the minimum gap generating conveyor 13, and adjusts the conveying speed of articles so that the distance between articles becomes a standard distance, that is, an appropriate distance.

Here, the standard interval is an interval at which the sorter 20 can prepare to receive the next item after sending the items entered into it to the branch conveyors 21, 22, and 23 corresponding to the delivery destination, and the standard interval of the items is It may vary depending on the length of the item. The standard interval may be composed of a shortest interval at which problems may not occur in sorting and sending the products by the sorter 20 and a longest interval at which the sorting and processing speed of the products does not slow down.

A section of the dynamic gapping conveyor 14 is provided with a detection sensor 40 for detecting an article to be transported, and the dynamic gapping conveyor 14 is provided with the position of the current article detected by the detection sensor 40 (the detected article). The length of can also be considered) and the position of the item transported just before (this position can be the position detected by the branch sensor, and the position can be calculated from the time elapsed after the item passed) By adjusting the transfer speed of the previous item and the current item are transferred between the shortest and longest intervals, which are standard intervals.

The conveying speed of the article on the dynamic gapping conveyor 14 is faster than the conveying speed of the article on the minimum gap generating conveyor 13, so that the article entering the dynamic gapping conveyor 14 and the article immediately thereafter are spaced apart. let it unfold

The dynamic gapping conveyor 14 may control the conveying speed of the article to be conveyed by uniformly adjusting the rotational speed of all drive rollers, or may adjust the conveying speed of the article to be conveyed by individually adjusting the rotational speed of the drive rollers. have. Here, individually adjusting includes adjusting the rotational speed of each drive roller and grouping several adjacent drive rollers and adjusting the rotational speed of the drive rollers belonging to the group together. By individually adjusting the rotation speed of the drive rollers, the distance between articles can be more quickly, accurately and actively adjusted.

The speed compensating conveyor 15 is connected to the dynamic gapping conveyor 14, so that articles entered from the dynamic gapping conveyor 14 are turned over on the scanner conveyor 16.

The scanner conveyor 16 is connected to the speed compensating conveyor 15 and allows articles to pass through the scanner 30 .

The scanner conveyor 16 does not cause a problem when the scanner 30 scans the product and recognizes the information (delivery address), and the product is not damaged by impact in the process of delivering the product to the sorter 20. is transferred quickly at constant speed.

The scanner conveyor 16 has the fastest conveying speed of articles among conveyors, and the dynamic gapping conveyor 14 has a different conveying speed of articles to adjust the distance between articles to a standard interval.

So, if the conveying speed of the article on the scanner conveyor 16 and the conveying speed of the article on the dynamic gapping conveyor 14 differ by more than a standard speed difference, the article tilts or falls down while entering the scanner conveyor 16 Location may change.

The speed compensating conveyor 15 reduces the difference in conveying speed between the scanner conveyor 16 and the dynamic gapping conveyor 14 when the difference in conveying speed is greater than or equal to the standard speed difference, so that the article enters the scanner conveyor 16 Do not tip over or fall over.

The conveying speed of the articles in the conveyors increases in the order of the intake conveyors 11 and 12, the minimum gap creation conveyor 13, the dynamic gapping conveyor 14, the speed correction conveyor 15, and the scanner conveyor 16. So, in the process of being loaded on the inlet conveyors 11 and 12 and transported to the sorter 20, the gap between the articles gradually widens as they pass through each conveyor, and the dynamic gapping conveyor 14 transfers the articles passing through the section. By actively adjusting the speed while accelerating and decelerating, the distance between articles is adjusted to the standard distance.

The scanner 30 scans an invoice attached to a passing article to obtain information about the delivery place of the article, and transfers the obtained information about the delivery place to the sorter 20 .

The scanner 30 may include a camera for photographing the invoice, a reader for recognizing a barcode or QR code on the invoice, and the like.

The sorter 20 allows the goods delivered from the scanner conveyor 16 to enter the branch conveyors 21, 22, and 23 suitable for delivery destinations, so that the goods can be sorted by delivery destination.

The controller 50 uses the detection signal of the detection sensor 40 to adjust the conveying speed of the articles on the dynamic gapping conveyor 14 so that the articles enter the sorter 20 with a time difference at standard intervals. .

The controller 50 generally controls the conveying speed of the goods in the inlet conveyors 11 and 12, the minimum gap generation conveyor 13, the dynamic gapping conveyor 14, and the speed compensation conveyor 15, depending on the case. It is possible to maximize loading efficiency (intake efficiency) loaded on the inlet conveyors 11 and 12, and to automatically generate appropriate intervals between required items in the sorter 20.

The conveyed articles placed on the conveyors 11 to 16 are continuously impacted so that their positions may change little by little, and when the positions are changed, the articles may overlap each other, and the distances of the articles adjusted to the standard intervals may exceed the standard intervals. can get away In addition, the noise generated by the impact caused by the driving of the conveyors 11 to 16 is a level that cannot be ignored.

Therefore, it is necessary to reduce the impact applied to the goods transported on the conveyors 11 to 16 and to reduce the noise caused by the impact caused by the driving of the conveyors 11 to 16.

According to this need, the present invention uses the mount 100 having excellent buffering efficiency to reduce the position change of the transported goods and the generation of noise.

Hereinafter, the mount 100 will be described with reference to FIGS. 2 to 4 .

For reference, in the drawings, the components are slightly exaggerated (different from the actual dimensions) so that it is easy to understand the configuration and structure of the mounting table 100 and the operating mechanism. And the conveyors 11 to 16 are made of a long structure, and the buffer plate 120 is made of a long structure like the conveyors 11 to 16, and the bottom plate 110 and the rotating plate 140 are provided here and there, so that the buffer plate ( 120) can be buffered and supported.

The mounting table 100 includes a floor plate 110 placed on the floor, a buffer plate 120 disposed on the floor plate 110 and on which conveyors 11 to 16 are placed, and the floor plate 110 and the buffer plate. 120 is interposed here and there and includes a buffer spring 130 for absorbing shock applied to the buffer plate 120.

The impact applied to the buffer plate 120 is generally concentrated on a specific part. When the shock applied to the buffer plate 120 is concentrated on a specific part, the buffer plate 120 is tilted by the impact, and when the buffer plate 120 is tilted, the shock absorption efficiency is lowered, and the tilted buffer plate 120 is restored to its original position In the process of being tilted in the opposite direction, repeated fluctuations occur. As such, when the buffer plate 120 tilts or fluctuates in a specific direction, the shaking of the conveyors 11 to 16 placed on it increases, so that the position of the article placed on the conveyor 11 to 16 may change, and if the shaking is severe, the article may tip over and fall.

The present invention introduces an impact dispersing means that allows the entire buffer plate 120 to move only in the vertical direction without tilting even when the impact is concentrated on a specific part of the buffer plate 120, so that the impact applied to the buffer plate 120 is reduced. While being uniformly distributed throughout the buffer plate 120, the above problems are solved.

The impact dispersing means includes a rotating plate 140 rotatably provided on the bottom plate 110, a plurality of first inclined blocks 150 provided on the rotating plate 140 and having an inclined surface 151 formed thereon, and , A plurality of second inclined blocks 160 having corresponding inclined surfaces 161 in contact with the inclined surface 151 formed at the lower part of the buffer plate 120 and formed on both sides of the first inclined block 150 It includes a slide rail 153 and a slide roller 163 provided on both sides of the second inclined block 160 and inserted into the slide rail 153 to move along the slide rail 153.

A bearing rotatably coupled to the rotating shaft 111 provided at the center of the bottom plate 110 is provided at the center of the lower surface of the rotating plate 140, and the rotating plate 140 is rotatably coupled to the upper surface of the bottom plate 110. ) It may be desirable to have a plurality of rotating balls or rotating rollers so that the rotation is made smoothly.

Guide holes 113 and guide pins 123 are provided at the corners of the bottom plate 110 and the buffer plate 120 to guide the lifting and lowering of the buffer plate 120, and the spring 130 passes through the rotating plate 140. A light through hole 141 having a round shape is formed.

When an impact is applied to a specific part of the buffer plate 120 and the part is pressed, the second inclined block 160 close to the impact part descends and the corresponding inclined surface 161 of the second inclined block 160 moves to the first inclined block While moving along the inclined surface 151 of (150), the first inclined block 150 is pushed, and the rotating plate 140 rotates accordingly. When the rotary plate 140 rotates, the sliding rollers 163 provided on all the second inclined blocks 160 pull down their second inclined blocks 160 while moving along the restrained sliding rails 153. The buffer plate 120 is lowered.

As such, the shock dispersing means allows all of the second inclined blocks 160 to be simultaneously pulled down when the impact is concentrated on one part of the buffer plate 120, so that the buffer plate 120 moves downward without inclination. It is moved, and even when it is restored to its original position, it is moved upward without inclination.

In the above description of the present invention, a cargo spacing optimization system for improving cargo sorting performance having a specific shape and structure has been described with reference to the accompanying drawings, but the present invention is capable of various modifications and changes by those skilled in the art, and these modifications and changes should be construed as falling within the protection scope of the present invention.

11,12: incoming conveyor 13: minimum gap generation conveyor
14: dynamic gambling conveyor 15: speed correction conveyor
16: scanner conveyor 20: sorter
21,22,23: branch conveyor 30: scanner
40: detection sensor 50: controller
100: mounting table 110: bottom plate
120: buffer plate 130: buffer spring
140: rotary plate 150: first inclined block
160: 2nd inclined block

Claims (4)

An inlet conveyor on which articles are lifted and transported;
a minimum gap creation conveyor connected to the inlet conveyor and transporting articles at a higher speed than the inlet conveyor to secure a minimum distance between articles;
It is connected to the minimum gap generation conveyor, and a detection sensor for detecting an article to be transported is provided in the section, and the conveying speed of the article is adjusted according to the detection signal of the detection sensor so that the distance between articles is adjusted to a standard interval. Dynamic gapping conveyor;
Including; a mounting table on which the inlet conveyor, the minimum gap generating conveyor, and the dynamic gapping conveyor are installed,

The mounting table includes a floor plate installed on the floor, a buffer plate disposed on the floor plate and on which the inlet conveyor, minimum gap generating conveyor, or dynamic gapping conveyor is installed, and a buffer plate interposed here and there between the floor plate and the buffer plate. A buffer spring for absorbing the impact applied to the buffer plate, and a shock dispersing means for uniformly distributing the impact applied to the buffer plate to the entire buffer plate,
The impact dispersing means includes a rotary plate rotatably provided on the bottom plate, a plurality of first inclined blocks provided on the rotary plate and having an inclined surface formed thereon, and a corresponding inclined surface provided on the buffer plate at a lower part contacting the inclined surface. A plurality of second slope blocks formed thereon, slide rails formed on both sides of the first slope block, and slide rollers provided on both sides of the second slope block and inserted into the slide rail to move along the slide rail Cargo spacing optimization system for improving cargo sorting performance, characterized in that it comprises. According to claim 1,
a scanner conveyor that allows articles to pass through the scanner;
A speed correction conveyor that connects the scanner conveyor and the dynamic gapping conveyor and reduces the difference between the article conveying speed in the dynamic gapping conveyor and the article conveying speed in the scanner conveyor when the difference is greater than or equal to a reference speed difference. Cargo spacing optimization system to improve cargo sorting performance. According to claim 1 or 2,
The dynamic gapping conveyor is a cargo gap optimization system for improving cargo sorting performance, characterized in that the rotational speed of the drive rollers is individually adjusted. delete

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