KR102284970B1 - Wheel sorter - Google Patents

Abstract

The present invention relates to a wheel sorter, wherein a hollow hole is formed along a direction change central axis in a lower portion of a transfer wheel unit and a power transmission means is allowed to pass through the hollow hole, such that during a direction change operation, design freedom can be expanded and the entire structure is simplified so as to facilitate a manufacturing and installation operation, wherein an installation operation of a transfer wheel unit can be completed by simply inserting the transfer wheel unit into a base frame, such that the transfer wheel unit can be easily manufactured and installed, and even when a specific transfer wheel unit fails, replacement is performed simply by drawing out the corresponding transfer wheel unit, and accordingly, a maintenance and repairing operation can be easily performed, and wherein direction change for a plurality of transfer wheel units can be concurrently performed by using a single direction change power transmission means so as to achieve structural simplification and expand the range of direction change angles, and accordingly, the direction change angles can be set more diversely.

Description

Wheel Sorter {WHEEL SORTER}

The present invention relates to a wheel sorter device. More specifically, by forming a hollow hole along the direction conversion center axis in the lower part of the transfer wheel unit and allowing the power transmission means to pass through the hollow hole, the degree of design freedom can be expanded during the direction change operation, and the overall structure is simplified to manufacture and Installation work can be easily performed, and the installation work of the transfer wheel unit can be completed by simply inserting the transfer wheel unit into the base frame, making it easy to manufacture and install. It can be replaced simply by taking out only the wheel unit, so maintenance work can be easily performed. It relates to a wheel sorter device that can be set more diversely by simplifying and extending the turning angle.

The term logistics is an abbreviation for physical distribution, and is a generic term for functions or activities that effectively move products and goods from producers to consumers. Generally refers to several activities such as packaging, unloading, transport, storage and information.

In general, to transport products and goods, various processes such as packaging, storage, collection/loading, transportation, unloading/delivery, and storage are performed. It is impossible to move goods and goods without going through this process no matter which means of transport is used. Comprehensively looking at the whole of these movements is physical distribution (logistics).

In recent years, mass production, mass sales, and mass consumption have become the trend of the times, and the importance of logistics is gradually increasing because the need to streamline the flow of goods between them has increased.

Logistics warehouse refers to a storage warehouse for temporarily or long-term loading and storage of all items used in daily life, such as various foodstuffs, beverages, clothing, home appliances, miscellaneous goods, and industrial goods, which are generally mass-produced in factories or production sites. Due to the rapid development of the logistics industry in recent years, these warehouses are designed and constructed so that they can create new businesses such as inventory management, as well as efficient warehousing, from arranging items in storage stock in the logistics warehouse beyond the simple logistics management dimension. .

These warehouses are equipped with mechanized or automated means for loading and unloading cargo, because the rapid warehousing and delivery of cargo is vital. Typically, automated facilities such as stacker cranes, shuttles, and lifts are used. In addition, a sorter device capable of automatically sorting various cargoes according to a specific classification standard set by a user is used.

Recently, with the development of information and communication technology, online shopping and delivery service are increasing. Due to this change in shopping methods, a large amount of goods are distributed in a small quantity order pattern of various kinds. Recently, the need for a sorter device that classifies into

Such a sorter device has been developed and used in various forms depending on the type and processing method of the article, and the wheel sorter device for sorting and transporting the article through a transfer wheel is widely used for reasons of economic feasibility and the like.

The wheel sorter device is configured to selectively classify and transport articles supplied from a separate article supply device in any one of a plurality of directions. In general, a transfer wheel unit for transporting articles in frictional contact with the article, and a transfer wheel unit It is configured to include a main driving unit for rotationally driving, a direction changing unit for changing the conveying direction of the conveying wheel unit, and the like.

The wheel sorter device according to the prior art generally has a complicated structure, so it is difficult to manufacture, and frequent failures occur, and maintenance work is also difficult and takes a long time.

Domestic Patent Publication No. 10-2010-0078064

The present invention was invented to solve the problems of the prior art, and an object of the present invention is to form a hollow hole in the lower portion of the transfer wheel unit along the direction change central axis and allow the power transmission means to pass through the hollow hole, so that the direction change operation An object of the present invention is to provide a wheel sorter device capable of extending design freedom and simplifying the overall structure to facilitate fabrication and installation.

Another object of the present invention is to complete the installation work of the transfer wheel unit by simply inserting the transfer wheel unit into the base frame, making it easy to manufacture and install, and to withdraw only the transfer wheel unit in case of failure of a specific transfer wheel unit It is to provide a wheel sorter device that can be easily replaced in such a way that it can easily perform maintenance work.

Another object of the present invention is a wheel sorter device that can be set more diversely by simplifying the structure and extending the direction change angle by simultaneously performing direction change for a plurality of transfer wheel units using one direction change power transmission means is to provide

The present invention provides a wheel sorter device for sorting and transporting articles supplied from a separate article supply device, comprising: a base frame having a sorting transport region formed on an upper surface thereof; a transfer wheel unit coupled to the base frame so as to be located in the sorting transfer area and selectively transferring the articles supplied to the sorting transfer area in any one of a plurality of directions; a main driving unit for driving the conveying wheel unit to convey an article; and a direction change driving unit for changing an arrangement direction of the transfer wheel unit so that the direction of conveying the article by the transfer wheel unit is changed, wherein the transfer wheel unit includes a transfer wheel roller rotating about a roller shaft in a horizontal direction; , It supports the roller shaft from the bottom and a hollow hole in the vertical direction is formed in the center to include a roller support module that is rotatably coupled to the base frame about a vertical axis, wherein the transfer wheel roller is a main power transmission means It is connected to the main driving unit, and the main power transmitting means provides a wheel sorter device, characterized in that it is arranged to pass through the hollow hole of the roller support module.

In this case, the roller support module may include: a roller support bracket for supporting the roller shaft; a hollow rotating shaft coupled to a lower portion of the roller support bracket and having the hollow hole formed therein; and a bearing in which the inner ring is closely coupled to the outer circumferential surface of the rotation shaft and the outer ring is closely coupled to the base frame.

The base frame includes an upper support plate disposed at an upper end to form the sorting transfer area and having an operation hole formed to expose the transfer wheel unit to the outside, and a support hole disposed below the upper support plate and supporting the transfer wheel unit to be inserted and supported. and a lower support plate formed therein, wherein the bearing is applied as an NR bearing having a snap ring coupled to an outer circumferential surface and inserted into the support hole, and may be engaged and supported by the lower support plate by the snap ring.

In addition, a bearing clamp may be coupled to the upper surface of the lower support plate to fix the position of the bearing by pressing the upper surface of the snap ring while the bearing is inserted into the support hole.

In addition, the main driving unit, the main driving roller located in the vertical lower portion from the transfer wheel roller; and a main drive motor rotating and driving the main drive roller, wherein the main power transmission means includes a main drive belt having one end wound around the transfer wheel roller and the other end wound around the main drive roller, the main drive The belt may be disposed to pass through the hollow hole.

In addition, a plurality of the transfer wheel units are arranged in a direction perpendicular to the direction in which the goods are supplied to form one unit module, and the unit modules are arranged in plurality to be spaced apart in the direction in which the goods are supplied, and each unit module is the main power It may be respectively connected to the main driving unit through a transmission means.

In addition, the main driving unit includes: a plurality of main driving rollers respectively disposed in a vertical lower portion of the unit module in a direction parallel to the arrangement direction of the plurality of transfer wheel units constituting the unit module; and a main driving motor for rotationally driving the main driving roller, wherein the main power transmitting means has one end wound around each of the transport wheel rollers of the plurality of transport wheel units constituting the unit module, and is disposed below the unit module A plurality of main driving belts each having the other end wound around one main driving roller may be provided, and the plurality of main driving belts may be disposed to pass through a hollow hole of the rotation shaft, respectively.

In addition, two unit modules adjacent to each other may be simultaneously connected to one direction change driving unit through the direction change power transmission means.

In addition, the direction change driving unit, a direction change drive motor; and a drive pulley rotated by the direction change driving motor and having gear teeth formed on an outer circumferential surface, wherein the direction change power transmission means rotates each of a plurality of transfer wheel units constituting two unit modules adjacent to each other in the middle section It includes a timing belt that is engaged with the outer peripheral surface of the shaft through gear teeth and one side is engaged with the drive pulley through gear teeth to rotate and move, and gear teeth are formed on the outer peripheral surface of the rotating shaft so as to be engaged with the timing belt. can

According to the present invention, by forming a hollow hole along the direction conversion central axis in the lower portion of the transfer wheel unit and allowing the power transmission means to pass through the hollow hole, the degree of design freedom can be expanded during the direction change operation, and the overall structure is simplified and manufactured And there is an effect that can easily perform the installation work.

In addition, the installation work of the transfer wheel unit can be completed by simply inserting the transfer wheel unit into the base frame, making it easy to manufacture and install. Because it can be replaced easily, there is an effect that maintenance work can be performed easily.

In addition, by simultaneously performing a direction change for a plurality of transfer wheel units using a single direction change power transmission means, there is an effect that the structure can be simplified and the direction change angle can be extended and set more diversely.

1 is a diagram conceptually illustrating a method for sorting and transporting articles using a wheel sorter device according to an embodiment of the present invention;
2 is a perspective view schematically illustrating a form in which a wheel sorter device and an article supply device are combined into one module according to an embodiment of the present invention;
3 is a perspective view schematically showing an internal structure of a wheel sorter device according to an embodiment of the present invention;
4 is a cross-sectional view taken along line "AA" of FIG. 3;
5 is a partially exploded perspective view schematically illustrating an arrangement state of a transfer wheel unit according to an embodiment of the present invention;
6 is a perspective view schematically illustrating an external shape of a transfer wheel unit according to an embodiment of the present invention;
7 is an exploded perspective view schematically showing the configuration of a transfer wheel unit according to an embodiment of the present invention;
8 is an exploded perspective view schematically showing the shape of the roller body of the conveying wheel roller according to an embodiment of the present invention;
9 is a cross-sectional view taken along line "BB" of FIG. 6;
Figure 10 is a cross-sectional view taken along line "CC" of Figure 6;
11 is a view for explaining the roller shaft fixing structure of the transfer wheel unit according to an embodiment of the present invention;
12 is a perspective view schematically illustrating a coupling structure of a transfer wheel unit and a direction change driving unit according to an embodiment of the present invention;
13 is a cross-sectional view taken along line “DD” of FIG. 12 .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a diagram conceptually illustrating an article sorting and transport method using a wheel sorter device according to an embodiment of the present invention.

The wheel sorter device 10 according to an embodiment of the present invention receives the article 40 supplied from a separate article supply device 20 such as a conveyor, and moves the received article 40 in any one of a plurality of directions. to selectively sort and transport.

As shown in FIG. 1 , the wheel sorter device 10 transports, for example, the article 40 supplied from the article supply device 20 in the same straight direction as the article supply direction or at right angles to both sides from the article supply direction. direction can be transferred. Of course, it is also possible to transfer the product in a direction inclined to both sides from the supply direction.

To this end, the article supply device 20 is disposed in front of the wheel sorter device 10 , and the article 40 that is sorted and transported in a straight direction from the wheel sorter device 10 continues to move behind the wheel sorter device 10 . Another article supply device 20 may be arranged to do so. An article transfer chute 30 may be disposed on the left and right sides of the wheel sorter device 10 to move the articles 40 separated and transferred in both directions from the wheel sorter device 10 .

At this time, the wheel sorter device 10 and the article supply device 20 may be alternately and repeatedly installed, and the wheel sorter device 10 and the article supply device 20 are coupled to each other to facilitate the installation of this arrangement structure. It may be installed in a modular form.

The wheel sorter device 10 detects the type of the article 40, switches the transport direction of the article 40 according to the type of the detected article 40, and moves the article 40 in any one of three directions. It can be configured to selectively transfer the sort. In this case, the article transport direction of the wheel sorter device 10 may be variously set, such as two directions or four directions, according to the needs of the user, and the angle of the article transport direction may also be set variously.

2 is a perspective view schematically illustrating a form in which a wheel sorter device and an article supply device are combined into one module according to an embodiment of the present invention, and FIG. 3 is an internal structure of the wheel sorter device according to an embodiment of the present invention. is a perspective view schematically showing, FIG. 4 is a cross-sectional view taken along line "AA" of FIG. 3, and FIG. 5 is a partially exploded perspective view schematically illustrating an arrangement state of a transfer wheel unit according to an embodiment of the present invention. .

The wheel sorter device 10 according to an embodiment of the present invention is configured to include a base frame 100 , a transfer wheel unit 200 , a main driving unit 300 , and a direction change driving unit 400 .

The base frame 100 is a configuration constituting the overall support structure of the wheel sorter device 10 , and may be made of a plurality of horizontal and vertical members. A sorting transfer area 101 is formed so that it can be transferred. The sorting transfer area 101 may be formed to have the same height as the upper surface of the article supply device 20 .

The base frame 100 is provided with an upper support plate 110 and a lower support plate 120 on the upper end side. The upper support plate 110 is disposed on the upper end of the base frame 100 to form the sorting transfer area 101, and an operation hole 111 is formed so that the transfer wheel unit 200 is exposed upwardly, and the lower support plate 120 is It is spaced apart from the lower part of the upper support plate 110 and the support hole 121 is formed so that the transfer wheel unit 200 is inserted and supported.

The transfer wheel unit 200 is configured to selectively transfer the article 40 supplied to the sorting transfer area 101 of the base frame 100 in any one of a plurality of directions, so as to be located in the sorting transfer area 101 . It is disposed on the upper end of the base frame (100). More specifically, the transfer wheel unit 200 is disposed so that the lower end is inserted and supported in the support hole 121 of the lower support plate 120 and the upper end is exposed externally through the operation hole 111 of the upper support plate 110 . do. The upper end of the transfer wheel unit 200 is disposed to protrude upward from the upper surface of the upper support plate 110, and accordingly, the article 40 supplied from the article supply device 20 to the sorting transfer area 101 is transferred to the transfer wheel unit ( It is seated and supported on the upper end of the 200), and is transferred by the rotation of the transfer wheel unit 200 .

The transfer wheel unit 200 is disposed to protrude upward from the upper support plate 110 and includes a transfer wheel roller 210 for seating and supporting the article 40, and a roller support module SM for supporting the transfer wheel roller 210 from the lower part. ) is included. At the upper end of the roller support module SM, a rotating operation plate 201 of a type surrounding the upper portion of the transfer wheel unit 200 is mounted so that only a portion of the upper region of the transfer wheel roller 210 is externally exposed and the remaining portion is blocked from exposure. The rotation operation plate 201 forms the same plane as the upper surface of the upper support plate 110 and is disposed to be inserted into the operation hole 111 , thereby assisting the support of the article 40 and simultaneously increasing the internal space of the transfer wheel unit 200 . It performs a function of protecting, and when the direction of the transfer wheel unit 200 is changed, the direction is changed together.

The conveyance wheel roller 210 rotates about the roller shaft 212 in the horizontal direction, and substantially conveys the article 40 through this rotation. The roller support module SM supports the roller shaft 212 of the transfer wheel roller 210 from the lower portion and is rotatably coupled to the base frame 100 about a vertical axis. More specifically, the roller support module SM is rotatably inserted and coupled to the support hole 121 of the lower support plate 120 about a vertical axis. In addition, a vertical hollow hole 231 is formed in the center of the roller support module SM.

A plurality of such transfer wheel units 200 are provided as shown in FIGS. 2, 3 and 5, and are arranged in plurality to be spaced apart along a direction perpendicular to the product supply direction to form one unit module (UM), such a unit A plurality of modules UM may be disposed to be spaced apart along the product supply direction.

The main driving unit 300 rotationally drives the transfer wheel unit 200 so that the article 40 supplied to the sorting transfer area 101 is transferred, and the transfer wheel unit 200 through a separate main power transmission means 330 . It is connected to the transfer wheel roller 210 of the transfer wheel roller 210 is configured to rotationally drive.

The main driving unit 300, as shown in FIGS. 3 and 4, a main driving roller 320 positioned vertically lower from the conveying wheel roller 210, and a main driving driving the main driving roller 320 to rotate. It may be configured to include a motor 310 . In this case, the main driving roller 320 is disposed in a direction parallel to the plurality of transfer wheel units 200 constituting the unit module UM, and is respectively disposed under the plurality of unit modules UM. The motor pulley 312 is mounted on the rotation shaft of the main driving motor 310 , the roller pulley 313 is mounted on the plurality of main driving rollers 320 , and the motor pulley 312 and the roller pulley 313 are one It is connected by a power transmission belt 311 and is rotationally driven at the same time.

The main power transmission means 330 is configured to include a main drive belt 331 having one end wound around the transfer wheel roller 210 and the other end wound around the main drive roller 320 . One end of the main drive belt 331 is respectively wound on the transfer wheel roller 210 of each of the plurality of transfer wheel units 200 constituting the unit module UM, and the other end of each main drive belt 331 is one main It is simultaneously wound on the driving roller 320 .

Therefore, when the main driving motor 310 rotates, the plurality of main driving rollers 320 connected by the power transmission belt 311 rotate, and the unit connected to each main driving roller 320 by the main driving belt 331 . A plurality of transfer wheel rollers 210 of the module UM rotate at the same time.

As described above, since the plurality of main driving belts 331 are simultaneously connected to one main driving roller 320 , the axial length of the main driving roller 320 is formed to be relatively long. A guide groove in the circumferential direction for guiding the winding path of the main drive belt 331 does not need to be formed, and may be formed in a simple cylindrical shape without additional processing. That is, since the axial length of the main driving roller 320 is formed to be relatively long, a movement displacement space is secured in the axial direction of the main driving belt 331 on the outer circumferential surface of the main driving roller 320 , and the main driving belt 331 is secured. ), even if the axial displacement occurs, it returns to its original position by the tension of the main drive belt 331 above a certain displacement. Therefore, there is no need to process a separate guide groove for guiding the main driving belt 331 on the main driving roller 320 , and thus manufacturing and installation work can be performed more easily.

The direction change driving unit 400 changes the arrangement direction of the transfer wheel unit 200 so that the direction of the article transfer by the transfer wheel unit 200 is changed. The direction change driving unit 400 is connected to the roller support module SM of the transfer wheel unit 200 through a separate direction change power transmission means 430 to rotate the roller support module SM. Switch the placement direction of 200. More specifically, the direction change power transmission means 430 may be connected to the rotation shaft 230 of the roller support module SM to rotate the rotation shaft 230 .

As described above, the arrangement direction of the transfer wheel unit 200 is switched by the direction change driving unit 400 , so that the transfer direction of the article 40 transferred by the transfer wheel unit 200 is selectively switched.

At this time, as shown in FIG. 5 , a plurality of transfer wheel units 200 , each constituting two unit modules UM adjacent to each other, simultaneously with one direction change driving unit 400 through a direction change power transmission means 430 . It is connected, and the direction is changed at the same time by the operation of the corresponding direction change driving unit 400 .

In addition, a bearing clamp 260 capable of pressing and fixing the bearing 240 is mounted on the upper surface of the lower support plate 120 , and a belt guide block 450 capable of guiding the position of the direction change power transmission means 430 . ) is mounted, which will be described later in detail.

Next, a detailed configuration of the wheel sorter device 10 according to an embodiment of the present invention will be described in more detail.

6 is a perspective view schematically illustrating the external appearance of the transfer wheel unit according to an embodiment of the present invention, and FIG. 7 is an exploded perspective view schematically illustrating the configuration of the transfer wheel unit according to an embodiment of the present invention, FIG. 8 is an exploded perspective view schematically showing the shape of the roller body of the conveying wheel roller according to an embodiment of the present invention, FIG. 9 is a cross-sectional view taken along the line "BB" of FIG. 6, and FIG. It is a cross-sectional view taken along line "CC", and FIG. 11 is a view for explaining the roller shaft fixing structure of the transfer wheel unit according to an embodiment of the present invention.

The conveyance wheel unit 200 according to an embodiment of the present invention includes a conveying wheel roller 210 rotating about the roller shaft 212 as described above, and a roller supporting the conveying wheel roller 210 from a lower portion. It is configured to include a module (SM).

The roller support module SM is coupled to the lower portion of the roller support bracket 220 and the roller support bracket 220 supporting both ends of the roller shaft 212 of the transfer wheel roller 210 and a hollow hole 231 in the center. ) is formed, and the inner ring is closely coupled to the outer circumferential surface of the rotary shaft 230 and the outer ring is closely coupled to the lower support plate 120 of the base frame 100. A bearing 240 is included. is composed by

At this time, the NR bearing in which the snap ring 241 is integrally coupled to the outer circumferential surface of the bearing 240 is applied to be inserted into the support hole 121 of the lower support plate 120 , and the snap ring 241 is the circumference of the support hole 121 . It is supported on the lower support plate 120 in such a way that it is engaged with the part. In this way, the bearing 240 can be engaged and coupled to the lower support plate 120, so that there is no need for a separate part for fixing the bearing, such as a separate bearing housing, and thus manufacturing and assembly work can be easily performed. , the structure can be simplified.

The transfer wheel unit 200 configured as described above can be inserted and coupled to the support hole 121 of the lower support plate 120 in an interference fit manner in a state in which the transfer wheel roller 210 and the roller support module SM are fully assembled. there is. Therefore, the installation and assembly operation of the transfer wheel unit 200 can be completed by simply inserting the transfer wheel unit 200 into the support hole 121 of the lower support plate 120 without the need to combine or fix separate parts. there is. In addition, if any one of the plurality of transfer wheel units 200 is damaged and needs to be replaced, only the transfer wheel unit 200 is removed by simply withdrawing from the support hole 121 of the lower support plate 120 . Therefore, replacement and repair work can also be performed easily.

At this time, the bearing clamp 260 is coupled to the upper surface of the lower support plate 120 to fix the position of the bearing 240 by pressing the upper surface of the snap ring 241 while the bearing 240 is inserted into the support hole 121 . can be (see FIGS. 6 and 13). The bearing clamp 260 may be elongated in a direction perpendicular to the product supply direction so as to simultaneously press and fix the bearings 240 of the plurality of transfer wheel units 200 constituting the unit module UM.

By mounting the bearing clamp 260 in this way, the upward movement of the bearing 240 can be restrained and the bearing 240 can be more perfectly fixed to the lower support plate 120 , and in particular, any one unit module (UM) After completing the installation, the transfer wheel unit of the previously installed unit module (UM) by vibration in the process of inserting the transfer wheel unit 200 of the other unit module (UM) into the support hole 121 of the lower support plate 120 . (200) can be prevented from being drawn upwards.

The rotation shaft 230 has an upper end coupled to a lower portion of the roller support bracket 220 , and an outer surface thereof is closely coupled with the inner ring of the bearing 240 to be rotatable about a vertical rotation axis. As shown in FIG. 9 , the rotating shaft 230 has a locking protrusion 232 formed on the outer peripheral surface of the upper end for coupling and fixing with the bearing 240 , and a separate snap ring SR is coupled to the lower end.

As shown in FIG. 9 , a hollow hole 231 is formed in the center of the rotation shaft 230 in a vertical direction, and the main power transmission means 330 passes through the hollow hole 231 of the rotation shaft 230 . are placed That is, the main driving belt 331 connecting the transfer wheel roller 210 and the main driving roller 320 is disposed to pass through the hollow hole 231 of the rotating shaft 230 .

At this time, for the compact structure of the transfer wheel unit 200 , the inner diameter D2 of the hollow hole 231 of the rotary shaft 230 may be formed smaller than the outer diameter D1 of the transfer wheel roller 210 . On the outer peripheral surface of the conveying wheel roller 210, a belt groove 211-1 in the form of a concave depression in the circumferential direction so that the main driving belt 331 is wound is formed, the outer diameter D3 of the belt groove 211-1 ) is formed smaller than the inner diameter (D2) of the hollow hole 231 of the rotation shaft 230.

As such, by forming the inner diameter D2 of the hollow hole 231 of the rotary shaft 230 smaller than the outer diameter D1 of the feed wheel roller 210, the size of the rotary shaft 230 can be downsized, so that the overall feed wheel The size of the unit 200 can be downsized, and by forming the outer diameter D3 of the belt groove 211-1 to be smaller than the inner diameter D2 of the hollow hole 231 of the rotation shaft 230, the main drive belt In the arrangement structure in which the 331 passes through the hollow hole 231 , a stable arrangement structure can be achieved without interference with the hollow hole 231 .

According to this structure, the main driving belt 331 extends downward from the center of the conveying wheel roller 210 in the vertical direction and can be connected to the main driving roller 320, and through this, the main power transmitting means 330 is separated and complex. It can be configured only with the main drive belt 331 without parts, and there is no need to extend or guide the main drive belt 331 in a separate direction, thereby simplifying the overall structure. In particular, the hollow hole 231 of the rotating shaft 230 forms a direction change central axis of the transfer wheel unit 200, and since the main drive belt 331 extends downward through the hollow hole 231 in the vertical direction, When the direction of the transfer wheel unit 200 is changed, interference between the main drive belt 331 and other components does not occur, so that the direction change angle of the transfer wheel unit 200 can be further extended and freely set.

On the other hand, the transfer wheel roller 210 is formed in a cylindrical shape and is coupled to the roller body 211 in the axial direction to form a roller body 211 rotating by the main driving unit 300 and a rotation axis of the roller body 211 . and a roller shaft 212 . At this time, a belt groove 211-1 is formed on the outer peripheral surface of the roller body 211 so that the main drive belt 331 is wound, and the belt groove 211-1 is circumferentially formed on the outer peripheral surface of the roller body 211 in the axial direction. formed along the direction.

As shown in FIG. 8, the roller body 211 has a solid cylindrical shape and is formed of a metal material for rigidity, and is located on the outer peripheral surface of the roller body 211 on both sides with the belt groove 211-1 as the center. A ring insertion groove 211-2 is formed along the circumferential direction to do so. A friction ring 215 having excellent friction properties is detachably inserted and coupled to the ring insertion groove 211 - 2 in friction contact with the article 40 . The ring insertion groove 211-2 is formed so that the outer circumferential surface of the friction ring 215 protrudes outside the outer circumferential surface of the roller body 211 in a state in which the friction ring 215 is inserted and coupled. At this time, a plurality of ring insertion grooves 211-2 may be formed on both sides of the belt groove 211-1, for example, two each, through which a larger number of friction rings 215 are inserted and coupled. Thus, it is possible to maintain a more stable operating state in the process of transporting goods by friction of the transport wheel roller 210 .

According to this structure, the conveying wheel roller 210 does not form a coating layer of a rubber material on the outer circumferential surface of the roller body 211, but simply inserts and couples the friction ring 215 in a separable manner, so that the coating process is unnecessary. It is easy to use and the manufacturing cost is also reduced. In addition, if the friction ring 215 is damaged during long-term use, only the damaged friction ring 215 can be separated and replaced without the need to replace the entire transfer wheel roller 210, making maintenance convenient and maintenance. Costs are also reduced.

On the other hand, the roller shaft 212 inserted into the roller body 211 is first and second shafts separately inserted in the axial direction to protrude from both end surfaces of the roller body 211, respectively, as shown in FIGS. 10 and 11 . (2121,2122) is formed separately.

On both end surfaces of the roller body 211, shaft receiving grooves 211-3 are formed concavely in the axial direction so that the first and second shafts 2121,2122 can be inserted and received, respectively, and the first and between the outer peripheral surfaces of the first and second shafts 2121,2122 and the inner peripheral surface of the shaft accommodating groove 211-3 in a state in which the second shafts 2121,2122 are inserted into the shaft accommodating grooves 211-3, respectively. A roller bearing 213 is inserted and fixed. A stepped portion is formed in the shaft accommodating groove 211-3 so that one side is fixed in a state in which the roller bearing 213 is inserted, and a snap ring SR is coupled to the other side of the roller bearing 213 by engagement.

At this time, the bottom surface of the shaft receiving groove 211-3 and the inner surface of the belt groove 211-1 are formed to be spaced apart from each other by X along the axial direction of the roller body 211 as shown in FIG. 8 . do. That is, the shaft receiving groove 211-3 and the belt groove 211-1 are formed in a region that does not overlap each other along the axial direction of the roller body 211 . As described above, since the outer diameter D3 of the belt groove 211-1 is relatively small, that is, since the depth of the belt groove 211-1 from the outer peripheral surface of the roller body 211 is relatively deep, the shaft By forming the receiving groove 211-3 in a region that does not overlap with each other in the axial direction, it is possible to prevent weakening of the rigidity of the roller body 211 .

The inner ends of the first and second shafts 2121,2122 are rotatably coupled to the roller body 211 through the roller bearing 213, and portions protruding outward from both end surfaces of the roller body 211 support the rollers. The bracket 220 is coupled and supported. At this time, a fixing support groove 221 is formed in the roller support bracket 220 so that the outer ends of the first and second shafts 2121,2122 are inserted and supported, and the outer sides of the first and second shafts 2121,2122 are formed. The end portion is formed with a fixed cutting portion 2125 that is partially cut so that the outer circumferential surface has a flat surface. The fixed support groove 221 of the roller support bracket 220 is formed so that the fixed cut portions 2125 of the first and second shafts 2121,2122 are inserted and supported and engaged with each other to be rotationally constrained. Accordingly, the first and second shafts 2121,2122 are supported in a rotationally constrained state by inserting the fixed cutout portion 2125 into the fixed support groove 221 of the roller support bracket 220 .

In addition, on the outer circumferential surface of the inner end of the first and second shafts 2121,2122, engaging stepped portions 2123 are formed to protrude along the circumferential direction so as to engage the side surfaces of the roller bearings 213, and the first and second shafts ( 2121,2122 is protruded and pressed toward both ends of the roller body 211 through a separate shaft fixing means (SF) in a state inserted and accommodated in the shaft receiving groove 211-3 of the roller body 211, so that the engaging step portion The 2123 may be coupled and fixed to the roller support bracket 220 in a state in which the roller bearing 213 is engaged with the side surface and pressed in close contact.

At this time, in the center of the first and second shafts 2121,2122, a screw hole 2124 in which a thread is formed on the inner circumferential surface along the axial direction is formed, and the shaft fixing means SF includes the first and second shafts ( It includes a fixing bolt 214 screwed to the screw hole 2124 of 2121,2122 and a bolt fixing bracket 202 for limiting the axial movement of the fixing bolt 214, and rotation of the fixing bolt 214 Accordingly, the first and second shafts 2121,2122 may be configured to move linearly in the axial direction. The bolt fixing bracket 202 may be separately mounted on the roller support bracket 220, but as shown in FIGS. 7, 10 and 11, the rotation operation plate extends downward from both ends of the rotation operation plate 201. It may be integrally formed with the 201 and coupled to the roller support bracket 220 .

Looking at the structure in which the first and second shafts 2121,2122 are coupled and fixed to the roller support bracket 220 together with the roller body 211 along the operation process, first, the first and second shafts 2121,2122 ) is inserted into the shaft receiving grooves 211-3 of the roller body 211, respectively, and the roller bearing 213 is inserted and fixed in this state. In this state, the first and second shafts 2121,2122 are fixedly constrained in the radial direction by the roller bearings 213, but are not completely fixedly constrained in the axial direction. That is, as shown in (a) of FIG. 11 , the engaging stepped portions 2123 of the first and second shafts 2121,2122 are positioned at a predetermined distance from the side surface of the roller bearing 213, and the first and second shafts 2121,2122 are spaced apart. The first and second shafts 2121,2122 have play in the axial direction. In this state, the fixing bolts 214 are screwed into the screw holes 2124 of the first and second shafts 2121,2122. Of course, the screw fastening of the fixing bolt 214 may be pre-fastened in a tentatively coupled state before the first and second shafts 2121,2122 are inserted into the shaft receiving groove 211-3.

In this way, the first and second shafts 2121,2122 and the roller bearing 213 are inserted into the shaft receiving groove 211-3, and the first and second shafts 2121,2122 are inserted into the screw holes 2124 of the shaft accommodating groove 211-3. After the fixing bolt 214 is fastened, if the fixing bolt 214 is continuously rotated in the screw fastening direction as shown in FIG. Since the inward movement in the axial direction is constrained, the first and second shafts 2121,2122 move outwardly along the axial direction. Accordingly, the engaging stepped portions 2123 of the first and second shafts 2121,2122 are pressed in close contact with the side surfaces of the roller bearings 213 .

As such, the engaging step portions 2123 of the first and second shafts 2121,2122 are pressed in close contact with the side surfaces of the roller bearings 213, so that the axial movement of the first and second shafts 2121,2122 is fixed. delivered Accordingly, the first and second shafts 2121,2122 are fixedly supported by the roller support bracket 220 together with the roller body 211 in a state in which both radial and axial movements are restrained.

The conveyance wheel roller 210 according to an embodiment of the present invention divides the roller shaft 212 into two in a form that does not penetrate the central portion of the roller body 211 as described above, so that the center of the roller body 211 is formed. A relatively deep belt groove 211-1 may be formed thereon, and even if the relatively deep belt groove 211-1 is formed in this way, the roller shaft 212 is separated into two without penetrating the central portion and is separated from both sides. Since it is inserted into the end portion, the rigidity at the center of the transfer wheel roller 210 is not weakened and safe rigidity is maintained. In addition, by forming the belt groove 211-1 of this type, the size of the rotating shaft 230 can be reduced, and thus the size of the transfer wheel unit 200 as a whole can be formed very compactly.

In addition, by fixing and supporting the two separated roller shafts 212 to the roller support bracket 220 in a state in which both radial and axial movements are restricted through a separate shaft fixing means SF, the roller shaft 212 is It is possible to prevent both the weakening of rigidity and the weakening of fixing force due to the two separate structures of the .

12 is a perspective view schematically illustrating a coupling structure of a transfer wheel unit and a direction change driving unit according to an embodiment of the present invention, and FIG. 13 is a cross-sectional view taken along line “D-D” of FIG. 12 .

The direction change driving unit 400 according to an embodiment of the present invention is connected to the rotation shaft 230 of the roller support module SM through the direction change power transmission means 430 as described above to drive the rotation shaft 230 . By rotating, it is configured to change the disposition direction of the transfer wheel unit 200 .

At this time, a plurality of transfer wheel units 200 are disposed in a direction perpendicular to the direction in which the article is supplied to form a unit module UM, and a plurality of unit modules UM are disposed to be spaced apart from each other in the direction in which the article is supplied. Each transfer wheel unit 200 constituting two unit modules UM adjacent to each other is simultaneously connected to one direction change driving unit 400 through a direction change power transmission means 430 and is changed in direction at the same time.

The direction change power transmission means 430, one side is connected to the direction change drive unit 400, is rotated by the direction change drive unit 400, and a plurality of transfer wheels forming two unit modules (UM) adjacent to each other in the middle section The unit 200 is configured to include a timing belt 431 that is simultaneously engaged with the outer peripheral surface of the rotation shaft 230 and the gear teeth through the gear teeth. At this time, gear teeth TS are formed on the outer circumferential surface of the rotation shaft 230 to be engaged with the timing belt 431 (see FIG. 6 ).

The direction change drive unit 400 includes a direction change drive motor 410 and a drive pulley 420 that is rotated by the direction change drive motor 410 and has gear teeth formed on an outer circumferential surface, and the timing belt 431 is One side is engaged with the drive pulley 420 through a gear tooth and is configured to rotate (see FIG. 5 ).

The driving pulley 420 is disposed on one side spaced apart from the two unit modules UM adjacent to each other, and disposed between the two unit modules UM adjacent to each other. A separate tension pulley 440 is disposed on the other side spaced apart from the two adjacent unit modules UM, and the tension pulley 440 is movably disposed in a direction closer to or away from the unit module UM. The timing belt 431 is formed in a closed loop form so that one side and the other side are connected to the driving pulley 420 and the tension pulley 440, respectively, and the intermediate section is closely coupled to the outer circumferential surface of the rotating shaft 230, the tension pulley ( The tension of the timing belt 431 is adjusted by adjusting the position of the 440 . That is, when the tension pulley 440 is moved in a direction away from the unit module UM, the tension of the timing belt 431 increases, and when the tension pulley 440 is moved in a direction close to the unit module UM, The tension of the timing belt 431 is reduced.

Looking at the direction change operation state of the transfer wheel unit 200 according to this structure, the drive pulley 420 is rotated by the direction change drive motor 410, and accordingly, the timing belt 431 rotates along the closed loop path. When the timing belt 431 is rotated, the rotation shaft 230 engaged with the timing belt 431 rotates about a vertical central axis, and accordingly, the transfer wheel roller 210 rotates and changes direction.

At this time, the rotation shaft 230 of each of the plurality of transfer wheel units 200 constituting the two adjacent unit modules UM rotates at the same time, and the direction of the plurality of transfer wheel units 200 is changed at the same time.

As described above, in one embodiment of the present invention, since the timing belt 431 is simultaneously coupled to the plurality of transfer wheel units 200 constituting the two unit modules UM adjacent to each other in a parallel connection manner, the plurality of transfer wheel units 200 ), the structure can be simplified and miniaturized compared to the serial connection method that sequentially connects a plurality of transfer wheel units 200 forming two unit modules UM through one direction change driving unit 400 It can change direction at the same time, which is advantageous in terms of manufacturing cost and energy efficiency.

In addition, in a state in which the main drive belt 331 for rotationally driving the transfer wheel roller 210 passes through the hollow hole 231 of the rotation shaft 230 and is disposed in the vertical direction, the direction change power transmission means 430 By applying as the timing belt 431 in contact with the outer circumferential surface of the rotating shaft 230, interference between the timing belt 431 and the main drive belt 331 does not occur during the direction change operation, so that a more free direction change operation is possible. The turning angle can also be set in a very wide range.

On the other hand, in order to stably change the direction at the same time for the plurality of transfer wheel units 200, the timing belt 431 must be closely coupled to the rotation shaft 230 of each of the plurality of transfer wheel units 200, which To increase the tension of the timing belt 431 by adjusting the position of the tension roller 440 .

In addition, in one embodiment of the present invention, a separate belt guide block 450 for guiding the movement path of the timing belt 431 in close contact with the outer circumferential surface of the rotation shaft 230 is provided on the lower support plate 120 of the base frame 100 . may be combined (see FIG. 5 ). The belt guide block 450 is elongated in a direction parallel to the arrangement direction of the plurality of transfer wheel units 200 constituting the unit module UM, so that the timing belt 431 is a plurality of rotation shafts of each unit module UM. It may be formed to guide in close contact with the outer peripheral surface of the 230 at the same time. Through this, the contact state between the timing belt 431 and the plurality of rotation shafts 230 may be further strengthened.

In addition, a belt guide wing portion 233 guiding a movement path of the timing belt 431 may be formed to protrude outside the outer circumferential surface of the rotation shaft 230 so that the timing belt 431 is not separated in the vertical direction. Through this, it is possible to prevent vertical deviation of the timing belt 431 to maintain a more stable operating state.

On the other hand, when the plurality of rotation shafts 230 are rotated using one timing belt 431 , the alignment state of the plurality of rotation shafts 230 coupled to the one timing belt 431 must all be identically formed. In addition, when all of the coupling and alignment states of the roller support bracket 220 coupled to the upper portion of each rotation shaft 230 are arranged in the same manner, the article transport direction of the transport wheel roller 210 is formed in the same manner. Since the transfer wheel roller 210 is coupled and fixed to the roller support bracket 220 , if the alignment state of each roller support bracket 220 is the same, the alignment state of the transfer wheel roller 210 is all the same, and the same product transfer direction has

In one embodiment of the present invention, the roller support bracket 220 and the rotation shaft 230 are provided so that the mutual coupling arrangement state of the roller support bracket 220 and the rotation shaft 230 can be assembled without tolerance in the same way as the design specification. A separate positioning pin 250 that can be fixed and maintained while guiding the mutually coupled arrangement is coupled in the inserted state. In particular, since the gear teeth are formed on the rotation shaft 230 , when the roller support bracket 220 is coupled to the rotation shaft 230 , the position must be accurately maintained, and mutually arranged through these positioning pins 250 . You can guide the relationship accurately.

As shown in FIG. 7 , a bracket positioning hole 2501 is formed in the roller support bracket 220 , and a shaft positioning hole 2502 corresponding to the bracket positioning hole 2501 is formed on the upper surface of the rotation shaft 230 . this is formed The roller support bracket 220 and the rotation shaft 230 are arranged so that the bracket positioning hole 2501 and the shaft positioning hole 2502 are located on the same axis as each other, and in this state, the positioning pin 250 is positioned at the bracket position. By inserting through the determination hole 2501 and the shaft positioning hole 2502 at the same time, the mutual arrangement state of the roller support bracket 220 and the rotation shaft 230 can be accurately guided and fixed at the same time.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

100: base frame
110: upper support plate
120: lower support plate
200: transfer wheel unit
210: feed wheel roller
211: roller body
211-1: belt groove
211-2: ring insertion groove
211-3: shaft receiving groove
212: roller shaft
2121: first shaft
2122: second shaft
213: roller bearing
214: fixing bolt
215: friction ring
220: roller support bracket
230: rotation shaft
231: hollow hole
240: bearing
250: positioning pin
260: bearing clamp
300: main driving unit
310: main drive motor
320: main driving roller
330: main power transmission means
331: main drive belt
400: direction change driving unit
410: direction change drive motor
420: drive pulley
430: direction change power transmission means
431: timing belt
450: belt guide block

Claims (9)

In the wheel sorter device for sorting and transporting articles supplied from a separate article supply device,
a base frame in which a sorting transfer area is formed on an upper surface;
a transfer wheel unit coupled to the base frame so as to be located in the sorting transfer area and selectively transferring the articles supplied to the sorting transfer area in any one of a plurality of directions;
a main driving unit for driving the conveying wheel unit to convey an article; and
A direction change driving unit for changing the arrangement direction of the transfer wheel unit so that the direction of conveying the article by the transfer wheel unit is changed
Including, the transfer wheel unit
A transport wheel roller rotating around a horizontal roller shaft, a roller support module supporting the roller shaft from the lower part and having a vertical hollow hole formed in the center to be rotatably coupled to the base frame about a vertical axis including,
The transfer wheel roller is connected to the main driving unit through a main power transmission means, and the main power transmission means extends vertically downward without a separate guide from the transfer wheel roller and is disposed to pass through the hollow hole of the roller support module,
The roller support module is
A roller support bracket for supporting the roller shaft, a hollow rotation shaft coupled to a lower portion of the roller support bracket and having the hollow hole, an inner ring is closely coupled to an outer circumferential surface of the rotation shaft, and an outer ring is attached to the base frame Including a bearing that is closely coupled,
The base frame is
An upper support plate disposed on the upper end to form the sorting transfer area and having an operation hole formed so that the transfer wheel unit is exposed to the outside, and a lower support plate disposed below the upper support plate and having a support hole formed so that the transfer wheel unit is inserted and supported including,
The bearing is applied as an NR bearing in which a snap ring is coupled to an outer circumferential surface and is inserted into the support hole, and is supported by engagement with the upper surface of the lower support plate by the snap ring,
A wheel sorter device, characterized in that the bearing clamp is coupled to the upper surface of the lower support plate to constrain the upward movement of the bearing by pressing the upper surface of the snap ring while the bearing is inserted into the support hole.
delete delete delete The method of claim 1,
The main driving unit
a main driving roller positioned vertically lower from the conveying wheel roller; and
A main drive motor that rotates the main drive roller
Including, wherein the main power transmission means includes a main drive belt having one end wound around the transfer wheel roller and the other end wound around the main drive roller, and the main drive belt passes through the hollow hole. Wheel sorter device, characterized in that.
The method of claim 1,
A plurality of the transfer wheel units are arranged in a direction perpendicular to the direction in which the goods are supplied to form one unit module, and the unit modules are arranged in plurality to be spaced apart in the direction in which the goods are supplied,
Each unit module is a wheel sorter device, characterized in that each connected to the main driving unit through the main power transmission means.
7. The method of claim 6,
The main driving unit
a plurality of main driving rollers respectively disposed at a vertical lower portion of the unit module in a direction parallel to an arrangement direction of a plurality of transfer wheel units constituting the unit module; and
A main drive motor that rotates the main drive roller
Including, wherein the main power transmission means has one end wound on each transfer wheel roller of each of the plurality of transfer wheel units constituting the unit module and the other end is wound on one main driving roller disposed under the unit module, respectively a plurality of main drive belts;
A wheel sorter device, characterized in that the plurality of main drive belts are respectively disposed in a form to pass through the hollow hole of the rotation shaft.
7. The method of claim 6,
A wheel sorter device, characterized in that two adjacent unit modules are simultaneously connected to one direction change driving unit through a direction change power transmission means.
9. The method of claim 8,
The direction change driving unit
direction change drive motor; and
and a drive pulley rotating by the direction change driving motor and having gear teeth formed on an outer circumferential surface,
The direction change power transmission means is engaged with the outer peripheral surface of the rotation shaft of each of the plurality of transfer wheel units constituting two unit modules adjacent to each other in the middle section through gear teeth, and one side is engaged with the drive pulley through gear teeth. a timing belt rotating and moving;
The wheel sorter device, characterized in that the gear teeth are formed on the outer peripheral surface of the rotation shaft to be engaged with the timing belt.

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