KR20150128180A - Transfer apparatus using ball array - Google Patents

Abstract

The present invention relates to a ball array transfer device. More specifically, the transfer device using a ball array stably transfers objects or people in various transfer directions. To achieve the purpose, the present invention comprises: a ball array which has a row/column structure that a plurality of first ball rollers rotating in a first direction and a plurality of second ball rollers rotating in a second direction are assembled and are arranged at constant intervals; a first driving unit applying a rotational driving force to the first ball roller rotating in the first direction; a second driving unit applying the rotational driving force to the second ball roller rotating in the second direction. The first driving unit has a plurality of first drive shafts which are disposed perpendicular to the first direction to transmit the rotational force in the first direction to rotate the first ball rollers. The second driving unit has a plurality of second drive shafts which are disposed perpendicular to transmit the rotational force in the second direction to rotate the second ball rollers.

Description

TRANSFER APPARATUS USING BALL ARRAY [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a ball array transfer apparatus, and more particularly, to a transfer apparatus using a ball array capable of stably transferring objects or people in various transfer directions.

BACKGROUND ART [0002] In general, various types of transfer apparatuses for transferring a conveyed object such as various articles, people, etc. to a desired position have been widely used.

Such a transfer device includes a cylinder, a conveyor belt, and a transfer robot.

Although the conveying apparatus using the cylinder has no significant problem in conveying the conveyed object in one direction, the conveying distance is short, and in order to convey the conveyed object in the horizontal / vertical / diagonal direction, a plurality of cylinders must be combined, , It is pointed out that disadvantages are that the facility cost is increased by installing several cylinders.

In addition, although a conveying device using a conveyor belt is suitable for conveying a conveyed object at a long distance, it is also necessary to provide a conveyor belt in accordance with the conveying direction in order to convey the conveyed object in the horizontal / vertical / diagonal directions. It is complicated and it is pointed out that the installation cost of the conveyor belts increases, and the occupied area of the facilities is also increased.

In addition, although the transfer device using the transfer robot can transfer the objects to be transported in the x, y, and z directions in a plurality of directions by one robot, it is expensive and requires a space for installing the transfer robot, In addition, it is not economical to maintain a dead zone to prevent danger due to malfunction of the transfer robot. In addition, since the transfer robot is composed of complicated mechanical devices and control devices, careful maintenance is required to prevent malfunctions And it is pointed out that the maintenance cost is high.

In addition, there is a conveying device using a rolling member such as a roller, and it is advantageous that control of the conveying direction can be freely controlled by such rolling members. However, the driving mechanism for driving the rolling members, The manufacturing cost and the installation cost are increased, and the driving control of the rolling members is very difficult, thereby increasing the maintenance cost.

US 8567587 B2 (Mar. 10, 2013)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an image forming apparatus, which can maintain precise and stable driving performance for a plurality of first ball rollers, second ball rollers, And an object of the present invention is to provide a ball array transfer device capable of controlling the driving of the plurality of ball rollers very efficiently and easily.

To this end, each of the plurality of ball rollers includes a first ball roller that rotates in a vector sum direction of the first direction and a second direction, a second ball roller that rotates only in the first direction, and a second ball roller that rotates only in the second direction. A plurality of first ball rollers, a second ball roller, and a third ball roller on which the objects to be placed, which are placed on the ball array, are combined by a uniform or somewhat uniform combination of the ball rollers in the row / And to control the conveying direction and the conveying speed on the plane as the conveying is performed by the speed vector sum in the second direction.

In addition, an idle ball roller is disposed at an arrangement position where the first ball rollers, the second ball rollers, and the third ball rollers are not positioned on the row array structure of the row / column structure, so that the ball To provide an array transfer apparatus.

The present invention has the following features in order to achieve the above object.

A plurality of first ball rollers which are rotated in a sum vector direction by a rotational driving force applied to the first ball rollers in either one of a first direction and a second direction, and a plurality of second ball rollers And a plurality of third ball rollers rotating only in the second direction, wherein the first ball rollers, the second ball rollers, and the third ball rollers are arranged in a row / An array; A first driving unit for applying a rotational driving force to the first ball rollers and the second ball rollers rotating in the first direction and a second driving unit for applying a rotational driving force to the first ball rollers and the third ball rollers rotating in the second direction The first drive unit includes a plurality of first and second ball rollers arranged in a direction orthogonal to the first direction for rotationally driving the first ball rollers and the second ball rollers, And the second drive unit includes a first drive shaft and a second drive shaft that are disposed in a direction orthogonal to the second direction to rotationally drive the first ball rollers and the third ball rollers, .

Here, the ball array further includes an idle ball roller which is not in contact with the first drive shaft and the second drive shaft but which is adapted to rotate in rotation.

The plurality of first driving shafts and the plurality of second driving shafts are disposed so that any one of the first driving shafts or the second driving shafts is located on the lower side than the other one so as not to interfere with each other.

The outer circumferential surfaces of the first drive shaft and the second drive shaft are rotatably contacted with the first ball roller, the second ball roller, the first ball roller, and the third ball roller, respectively.

The first drive unit may further include a plurality of first idle shafts symmetrically arranged with respect to the first drive shaft with respect to the first ball roller and the second ball roller and rotatably supporting the first ball roller and the second ball roller Wherein the first drive shaft is rotated by a first drive motor and the second drive unit is arranged symmetrically with respect to the second drive shaft with respect to the first ball roller and the third ball roller, And a plurality of second idle shafts for rotatably supporting the third ball rollers, and the second drive shaft is rotated by the second drive motor.

The first ball rollers, the second ball rollers and the third ball rollers of the ball array, the first drive shaft and the second drive shaft are supported by a support frame disposed under the ball array, At least one first support frame disposed at a lower portion of the ball array for supporting the first drive shaft and at least one second support frame for supporting the second drive shaft disposed at a lower portion of the ball array in the second direction.

The first support frame and the second support frame may be formed integrally with each other. Alternatively, the first support frame and the second support frame may intersect with each other, A plurality of engaging recesses are formed in at least one of the support frames.

In addition, a lower plate for supporting the first support frame and the second support frame is further provided, and an upper plate is further provided on an upper side of the first support frame and the second support frame, A plurality of through holes are formed so that the roller protrudes to the upper side of a certain portion.

According to the present invention, the first ball roller, the second ball roller, and the third ball roller, which are arranged in a constant row / column structure, are moved in the first direction and the second direction through the first drive unit and the second drive unit, The conveyed objects placed on the ball array can be conveyed and controlled in the direction of the sum vector of the first direction and the second direction by driving the ball rollers directly in the sum vector direction, It is possible to maintain a precise and stable driving performance with respect to the ball rollers of the present invention, and it is very efficient and easy to control.

In addition, the sum vector direction, which is the control direction for conveying the conveyed object, is not generated between the ball roller and the drive shaft but is generated on the bearing surface of the conveyed object that is simultaneously seated on the plurality of ball rollers, The loss is minimized.

In addition, an idle ball roller is disposed at an arrangement position where the first ball rollers, the second ball rollers, and the third ball rollers are not positioned on the row array structure of the row / column structure, so that the conveyed objects are stably placed and guided .

1 is a perspective view illustrating a ball array transfer apparatus according to an embodiment of the present invention.
2 is a perspective view illustrating an exploded view of a ball array transfer apparatus according to an embodiment of the present invention.
3 is a plan view showing a state in which a first drive unit and a second drive unit of a ball array transfer apparatus according to an embodiment of the present invention are installed.
4 is a sectional view taken along line IV-IV in Fig.
5 is a partially enlarged view of Fig.
6 is a sectional view taken along the line VI-VI in Fig.
7 is a partial enlarged view of Fig.
8 is a view illustrating an operation of a ball array transfer apparatus according to an embodiment of the present invention.
FIG. 9 is a view illustrating a state in which a part of a first support frame and a part of a second support frame according to an embodiment of the present invention are coupled.

Hereinafter, a ball array transfer apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 9 are views showing a ball array transfer apparatus according to an embodiment of the present invention.

As shown in FIGS. 1 and 2, a ball array transfer apparatus 100 according to an embodiment of the present invention applies a rotational driving force to any one of a first direction and a second direction, A plurality of second ball rollers 12 that rotate only in the first direction, a plurality of third ball rollers 13 that rotate only in the second direction, And an idle ball roller 14 idling at an arranged position.

Here, the ball array 10 includes a plurality of first ball rollers 11, second ball rollers 12, third ball rollers 13, and idle ball rollers 14 in a uniform or somewhat uniform combination Are arranged in a row / column structure spaced apart from each other by a predetermined distance and are rotatably received and supported by the support frame 40 and the upper and lower plates 50 and 60 as shown in FIGS. The upper ends of the ball rollers 11, 12, 13, and 14 are installed so as to be exposed at the upper portion of the upper plate 50 so that the objects to be delivered are seated on the upper end of the ball array 10.

The first drive unit 20 transmits the rotational force to the first ball roller 11 and the second ball roller 12 in the first direction (see arrow X direction in Fig. 3).

3 to 5, the first drive unit 20 includes a first ball roller 11 and a second ball roller 12 arranged in rows (see arrow Y direction in FIG. 3) A plurality of first drive shafts 21 configured to contact the first ball rollers 11 and the second ball rollers 12 to transmit rotation force in a first direction (see arrow X direction) And a plurality of first idle shafts (22) arranged symmetrically with respect to the first drive shaft (21) on the basis of the first idle shaft (21) and rotatably supporting the first ball rollers (11) and the second ball rollers Direction and the second direction are made orthogonal to each other.

Each of the first driving shafts 21 may include a 2n-1 row (n is a natural number) such as one row R1, three rows R3, five rows R5, seven rows R7, And only the first ball roller 11 and the second ball roller 12 arranged in the first and second ball rollers 11 and 12 are directly driven to rotate.

That is, in the arrangement of the ball array 10 according to the embodiment of the present invention, when viewed on the row, the first ball rollers 11 and the second ball rollers 12 are arranged alternately in the 2n-1 row, The third ball rollers 13 and the idle ball rollers 14 are arranged alternately.

Needless to say, the first ball rollers 11 and the third ball rollers 13 are arranged in the same row unit since they are arranged to rotate in contact with the second drive shaft 31, which will be described later.

Accordingly, the first driving shaft 21 is in contact with only the first ball rollers 11 and the second ball rollers 12, and is required to apply rotational force, so that it is disposed only in the 2n-1 row.

The combination of the first ball rollers 11 and the second ball rollers 12 arranged alternately on the row units and the combination of the ball rollers 11, 12, 13, and 14 disposed on the 2n-1 row and 2n row, The present invention is not limited to these embodiments, and various combinations and arrangements of such combinations are possible.

On the other hand, the plurality of first driving shafts 21 are arranged in a direction orthogonal to the first direction (see arrow Y direction in FIG. 3) in the predetermined row units C1, C3, C5, C7, and C9.

The plurality of first driving shafts (21) are configured to be simultaneously driven to rotate in the same direction by the first driving motor (25) and the first driving mechanism (26). The first transmission mechanism 26 includes a plurality of first pulleys 27 provided on the output shaft of the first drive motor 25 and the end of each first drive shaft 21, And a plurality of first winding motor sections (28) provided between the pulleys (27). The power of the first drive motor 25 is transmitted to the plurality of first drive shafts 21 through the first transmission mechanism 26 so that the plurality of first drive shafts 21 are rotationally driven in the same direction at the same time. The first winding motor section 28 is composed of a timing belt, a belt, a chain, etc., and is wound around the adjacent first pulleys 27.

3, the first transmission mechanism 26 includes a plurality of first pulleys 27, a plurality of first winding motor sections 28, and the like. The plurality of first row gears R1, R3, R5, R7, The first ball rollers 11 and the second ball rollers 12 of each row are illustrated as being configured to simultaneously drive both the first ball rollers 11 and the second ball rollers 12 of the first row rollers 11, The first rolling mechanisms may be independently installed to individually drive the first ball rollers 11 and the second ball rollers 12 in the row unit independently. Further, although the first transmission mechanism 26 exemplifies the winding transmission mechanism, various transmission mechanisms such as the gear transmission mechanism and the like can be applied.

3, the first transmission mechanism 26 is connected to the first drive shaft 21 adjacent to the first drive shaft 21 by a first winding drive section 28 so that one first drive shaft 21 is separately provided on the left and right sides The entire first drive shaft 21 may be connected to the transmission section 28 such as one timing belt without forming the first winding motor section 28 of the first drive shaft 28. [

As described above, the first transmission mechanism 26 according to the present invention can be of any type as long as it can transmit the rotational force of the first drive motor 25 to all the first drive shafts 21, and the present invention is not limited thereto .

The first idle shaft 22 and the first drive shaft 21 are symmetrically disposed with respect to the first ball roller 11 and the second ball roller 12 so that the first idle shaft 22 1 and the second ball rollers 12 driven by the first drive shaft 21. The first ball rollers 11 and the second ball rollers 12 rotate in opposite directions. Like the first drive shaft 21, the first idle shaft 22 is disposed along a direction perpendicular to the first direction (see arrow Y direction in FIG. 3) and is disposed in parallel with the first drive shaft 21 .

In particular, the first idle shaft 22 is connected to the first ball roller 11 and the second ball roller 12 without being connected to the first drive motor 25 and the first transmission mechanism 26 And does not transmit the driving force but is symmetrically arranged on the opposite side of the first driving shaft 21 to stably support the first ball roller 11 and the second ball roller 12 to maintain dynamic equilibrium . Thus, the first idle shaft 22 is rotatably supported by the support frame 40 together with the first drive shaft 21.

Although not shown in FIG. 3, the first drive unit 20 may further include a bearing structure for more rotatably supporting the first drive shaft 21.

Such a bearing configuration is a well-known structure for rotationally supporting the drive shaft, so an illustration and description thereof will be omitted from the separate drawings.

On the other hand, the second drive unit 30 is configured to transmit the rotational force to the first ball rollers 11 and the third ball rollers 13 in the second direction (see arrow Y direction in Fig. 3).

3, 6, and 7, the second drive unit 30 includes a first ball roller 11 and a second ball roller 11 arranged in a row unit (C1, C3, C5, C7 ...) And a plurality of second driving shafts 31 for rotationally driving the roller 13 in the second direction (see arrow Y direction) to transmit the rotational force. The first direction X and the second direction Y are orthogonal to each other .

The second drive shaft 31 is disposed in the 2n-1 row only when viewed in a row. The second drive shaft 31 has a first ball roller 11 arranged in a 2n-1 row like the first drive shaft 21 described above, And the third ball rollers 13 in the Y direction.

Of course, the second ball rollers 12 and the idle ball rollers 14 are arranged alternately in the row 2n, and the second ball rollers 12 and the idle ball rollers 14 are connected to the second drive shaft 31 And is not rotated in the Y direction.

As described above, the arrangement in which the ball rollers are disposed in the 2n-1th row and the 2nth row as well as the alternate arrangement of the first ball roller 11 and the third ball roller 13 is an embodiment of the present invention, . ≪ / RTI >

On the other hand, the plurality of second driving shafts (31) are configured to be rotationally driven in the same direction by the second driving motor (35) and the second driving mechanism (36). The second transmission mechanism 36 includes at least one output shaft of the second drive motor 35 and at least one second pulley 37 provided at an end of each second drive shaft 31, And a second winding motor section (38) provided between the pulleys (37). Thus, the power of the second drive motor 35 is transmitted to the plurality of second drive shafts 31 through the second transmission mechanism 36, and the plurality of second drive shafts 31 are rotationally driven in the same direction. The second winding motor section 38 includes a timing belt, a belt, a chain, and the like, and is wound around the adjacent first pulleys 37.

3, the second transmission mechanism 36 includes a plurality of second pulleys 37, a plurality of second winding transmission sections 38, and the like. The first ball rollers 11 and the third ball rollers 13 The first ball rollers 11 and the third ball rollers 13 of each of the column units C1, C3, C5, C7 ... are individually configured to drive the first and second ball rollers 11, And the second transmission mechanism may be independently installed and simultaneously driven.

In the case of the second drive shaft 31 as shown in FIGS. 4 and 6, the second idle shaft 32 such as the first idle shaft 22 described above is provided so as to correspond to the first idle shaft 11, And the third ball rollers 13 are rotatably supported.

On the other hand, the first drive shaft 21 and the first idle shaft 22 of the first drive unit 20 interfere with each other with respect to the second drive shaft 31 and the second idle shaft 32 of the second drive unit 30, .

The first drive shaft 21 and the first idle shaft 22 of the first drive unit 20 are spaced apart from the second drive shaft 31 and the second idle shaft 32 of the second drive unit 30 by a predetermined distance So that no contact occurs when they are rotated with respect to each other.

8 is a view illustrating an operation of a ball array transfer apparatus according to an embodiment of the present invention.

The first ball rollers 11, the second ball rollers 12, and the second ball rollers 14 of the ball array 10 are driven through the ball array 10, the first drive unit 20 and the second drive unit 30, 3, the operation of the ball rollers 13 and the idle ball rollers 14 will be described.

When the first drive shaft 21 and the second drive shaft 31 rotate in the counterclockwise direction at the same rotational speed and speed as shown in FIG. 8, the first ball rollers 11 rotate by 45 degrees to the left downward, The second ball rollers 12 are rotated downward by 0 degrees, and the third ball rollers 13 are rotated in the left direction.

Of course, the idle ball rollers 14 do not determine the direction of rotation but are guided to rotate in accordance with the moving direction of the conveyed object.

Accordingly, the direction in which the entire conveyed object is conveyed becomes 45 degrees in the lower left, which is the total direction of the first ball roller 11 + the second ball roller 12 + the third ball roller 13.

The support frame 40 is provided to support the first drive shaft 21 and the second drive shaft 31. The support frame 40 is disposed at the lower portion of the ball array in the first direction, And at least one second support frame (42) supporting the second drive shaft in a lower portion of the ball array in the second direction.

The support frame 40 according to an embodiment of the present invention forms a mesh structure when viewed in a plan view by coupling the plate-shaped first support frame 41 and the second support frame 42 in an upright manner.

The plate-like support frame 40 formed in the mesh structure is relatively simple in structure and relatively small in volume to be formed, and can smoothly move the ball array 10, the first drive shaft 21 and the second drive shaft 31 smoothly It is possible to support the rotation.

The simplification of the configuration and the reduction of the formed volume can reduce the cost of the entire ball array transfer apparatus 100, reduce the number of installation and maintenance work operations, and enable a denser ball array 10 configuration.

Here, the dense ball array structure can increase the contact area between the conveyed object and each of the ball rollers 11 and 12, thereby achieving more stable conveyance control as well as an improvement in the control reaction speed due to an increase in the rotational force transmission efficiency.

Therefore, the smaller the diameter of the ball rollers 11 and 12 is, and the smaller the distance between the ball rollers 11 and 12 is, the more ideal the ideal feeding device can be realized. The structure of the support frame 40 is stable on the rotation supporting surface and the diameter of the ball rollers 11 and 12 and the gap between the ball rollers 11 and 12 can be reduced.

A plurality of first seating grooves 45 are formed in the first support frame 41 so that the plurality of first driving shafts 21 are rotatably supported on the first support frame 41. A plurality of second driving shafts A plurality of second seating grooves 46 are formed so as to be supported.

Of course, the first support frame 41 is further provided with a third seating groove 47 for rotatably supporting the first idle shaft 22, which is parallel to the first driving shaft 21.

The first seating groove portion 45 and the third seating groove portion 47 are formed in a curved surface structure corresponding to the outer surface of the first driving shaft 21 supported by the first seating groove portion 45 and the third seating groove portion 47. 5, the first and second seating grooves 45 and 47 and the first driving shaft 21 may be spaced apart from each other by a predetermined gap, and the first driving shaft 21 is moved It can be rubbed on the surfaces of the first and second seating grooves 45 and 47 depending on whether the water is seated or not.

6 and 8, the second seating groove 46 may have a curved surface structure corresponding to the outer surface of the second driving shaft 31 and may be separated from the second driving shaft 31 by a predetermined gap .

A plurality of ball seating grooves 48 are formed between the plurality of second seating grooves 46 so that the ball rollers 11 and 12 are rotatably supported. 11, 12, and may be spaced apart from each ball roller 11, 12 by a predetermined clearance between the ball seating groove 48 and the ball rollers 11, 12.

Meanwhile, the first support frame 41 and the second support frame 42 may be integrally formed, but may have a fitting structure in consideration of difficulty in manufacturing and easiness of assembly and disassembly.

The first and second support frames 41 and 42 may be inserted into the first support frame 41 and the second support frame 42 so that the first support frame 41 and the second support frame 42 intersect each other, An engaging groove portion 49 is formed.

8, the engaging groove 49 is formed between the first seating groove 45 and the third seating groove 47 of the first supporting frame 41 and the thickness of the second supporting frame 42 And the second support frame 42 is provided with an engaging groove 49 formed in a lower portion of the central portion of the ball receiving groove 48 and incised in a predetermined length upward direction from the bottom face of the second support frame 42 .

The first support frame 41 and the second support frame 42 may have engagement grooves 49 formed therein so that they can be fitted together. However, if necessary, only the second support frame 42 The engaging groove portion 49 may be formed.

However, since the strength of the second support frame 42 may decrease as the length of the engagement groove 49 formed in the second support frame 42 becomes too large, The coupling grooves 49 should be formed in a predetermined length in both the support frame 41 and the second support frame 42 to reduce the length of the coupling grooves 49 formed in the support frames 41 and 42.

Further, as described above, the width of each engaging groove 49 is preferably larger than the thickness of the supporting frame, which is coupled to the engaging groove 49, to facilitate ease of assembling.

In other words, if the thickness is the same as the thickness of the support frame, it is possible to increase the bonding strength even though the bonding strength can be increased. have.

2 and 3, the lower and upper portions of the first and second support frames 41 and 42 support and receive the lower plate 60 and the upper plate 50, respectively .

A plurality of through holes 51 are formed in the upper plate 50 so that the ball rollers 11 and 12 protrude upward from the upper portion of the ball rollers 11 and 12, Can be seated.

The through-hole 51 is formed to be spaced apart from the ball roller 11 by a predetermined gap, and the predetermined gap is preferably as small as possible.

In addition, although not shown in the figure, the lower plate 60 may have a groove in the form of a lattice, so that the first support frame 41 and the second support frame 42 may be fitted on the groove. Alternatively, a separate guide extension may be formed on the upper surface so that each support frame does not flow on the lower plate 60 by engaging the guide extensions.

At least one support protrusion 61 is formed on the upper surface of the lower plate 60 so as to be in close contact with the bottom surface of the upper plate 50 to support the upper plate 50.

Due to the support protrusions 61, the lower plate 60 is able to bear and support a certain amount of the downward load of the upper plate 50. If necessary, the support protrusions 61 form a hollow, The upper plate 50 and the lower plate 60 can be screwed together.

Of course, the first drive shaft 21, the first idle shaft 22 and the second drive shaft 31 to be disposed at positions where the support protrusions 61 are formed may be excluded or supported by the support protrusions 61 according to the size of the support protrusions 61 61).

The first drive shaft 21 and the second drive shaft 31 are not in the form of idle shafts but are not transferred from the drive motor to the parallel shafts of the ball rollers from the adjacent drive shafts or idle shafts It will play a role of keeping it.

In the ball array conveying apparatus according to the present invention configured as described above, the first ball rollers 11 of the ball array 10 are driven in the first direction (arrow X direction) by the first drive unit 20, The second ball rollers 11 of the ball array 10 are driven in the second direction (arrow Y direction) by the second drive unit 30. [

The rotational force of each of the ball rollers 11 and 12 can be transmitted in various directions through the vector sum of the first direction X and the second direction Y, The conveyed object can be conveyed in various directions.

Particularly, since the ball rollers 11 and 12 of the ball array 10 are directly driven and rotated by the first drive shaft 21 and the second drive shaft 22, 11 and 12 can be very effectively transmitted to the ball array 10, and the conveying efficiency of the conveyed material by the ball array 10 can be greatly improved.

In the present invention, since each of the plurality of ball rollers 11 and 12 is directly driven to rotate by the first drive unit 20 and the second drive unit 30, a part of the ball rollers 11, The remaining ball rollers 11 and 12 can be rotationally driven by the first drive shaft 21 and the second drive shaft 31 even if the ball rollers 11 and 12 malfunction due to breakage or displacement of the ball rollers 11 and 12 It is possible to transmit the rotational force while appropriately compensating for the rotational force, so that even when a part of the ball rollers malfunctions, proper rotational force can be transmitted.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

10: ball array 11: first ball roller
12: second ball roller 20: first drive unit
21: first drive shaft 22: first idle shaft
25: first drive motor 30: second drive unit
31: second drive shaft 32: second idle shaft
40: support frame 41: first support frame
42: second support frame 50: upper plate
51: Through hole 60: Lower plate
100: Ball array transfer device

Claims (9)

A plurality of first ball rollers that are rotated in a sum vector direction by applying a rotational driving force in either one of a first direction and a second direction, a plurality of second ball rollers that rotate only in the first direction, A second ball roller, a second ball roller, and a third ball roller; the ball array having a row / column structure and arranged at a predetermined interval;
A first driving unit for applying a rotational driving force to the first ball rollers and the second ball rollers rotating in the first direction,
And a second driving unit for applying a rotational driving force to the first and third ball rollers rotating in the second direction,
The first drive unit includes a plurality of first drive shafts arranged in a direction orthogonal to the first direction to rotationally drive the first ball rollers and the second ball rollers and transmit the rotational force in the first direction,
And the second drive unit includes a plurality of second drive shafts arranged in a direction orthogonal to the second direction so as to rotationally drive the first ball rollers and the third ball rollers and transmit the rotational force in the second direction. A ball array transfer device.
The method according to claim 1,
The ball array
Further comprising an idle ball roller for guiding the conveyance of the object to be conveyed which is not in contact with the first drive shaft and the second drive shaft but is seated on the upper side.
The method according to claim 1,
Wherein the plurality of first drive shafts and the plurality of second drive shafts are disposed so that any one of the first drive shafts or the second drive shafts is located below the other one so as not to interfere with each other. .
The method of claim 3,
Wherein the outer circumferential surfaces of the first drive shaft and the second drive shaft are installed so that the first ball rollers, the second ball rollers, the first ball rollers, and the third ball rollers are rotatably contactable.
5. The method of claim 4,
The first drive unit further includes a plurality of first idle shafts symmetrically arranged with respect to the first drive shaft with respect to the first ball roller and the second ball roller to rotatably support the first ball roller and the second ball roller The first drive shaft is rotated by the first drive motor,
The second drive unit further includes a plurality of second idle shafts arranged symmetrically with respect to the second drive shaft with respect to the first ball roller and the third ball roller to rotatably support the first ball roller and the third ball roller And the second drive shaft is rotated by the second drive motor.
6. The method of claim 5,
Wherein the first ball rollers, the second ball rollers and the third ball rollers of the ball array, and the first drive shaft and the second drive shaft are supported by a support frame disposed under the ball array.
The method according to claim 6,
The support frame
At least one first support frame disposed at a lower portion of the ball array in the first direction to support a first drive shaft and at least one second support frame disposed at a lower portion of the ball array in the second direction, And a plurality of balls arranged in the circumferential direction.
8. The method of claim 7,
The first support frame and the second support frame are integrally formed and disposed,
Wherein a plurality of coupling grooves are formed in at least one of the first support frame and the second support frame so as to be able to be coupled to each other without interfering with the first support frame and the second support frame section intersecting with each other. Array transfer device.
9. The method of claim 8,
And a lower plate is further provided at a lower portion of the first support frame and the second support frame, and an upper plate is further provided at an upper side of the first support frame and the second support frame,
And a plurality of through holes are formed in the upper plate such that the ball rollers protrude upward from the upper surface of the ball roller.

Images