KR100362915B1 - A change of direction system in the loop type transfer vehicle - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveying direction switching system in a loop type conveying apparatus. The present invention relates to a conveying direction in a loop conveying apparatus in which a conveyor formed on an upper portion of a conveying apparatus can be rotated with no power to quickly and efficiently change a conveyed object. In order to provide a switching system, a conveying apparatus having a traveling body formed at a lower portion and a conveyor formed at an upper portion thereof travels a track formed in a loop shape, thereby transporting a conveyed object mounted on the conveyor. 50 is a rotational coupling member 54 for pivotally coupling the conveyor 56 is formed in the center, and the driving device formed with a locking device 60 for selectively fixing the conveyor 56 in a predetermined position on the upper surface It is rotatably coupled to the upper portion of the running portion 52 by the portion 52 and the rotational coupling member 54, At a predetermined position facing the locking device 60, a locking groove 62 is formed to fix and release the locking device 60, and is mounted at the lower side of each corner when traveling on one side of the curve section of the driving part 52. Conveyor 56 is coupled to the guide roller 58 for inducing rotation so that the conveyed object 40 is maintained in a predetermined direction, the outer side of the curved section of one side of the track 10 of the loop shape First and second guide rails 80 and 82 are formed to have a predetermined radius of curvature so that the guide roller 58 coupled to the lower portion of the conveyor 56 is inserted and guided to travel.

Description

Transfer direction switching system in loop type conveying equipment {A CHANGE OF DIRECTION SYSTEM IN THE LOOP TYPE TRANSFER VEHICLE}

The present invention relates to a conveying direction switching system in a loop type conveying apparatus, and more particularly, when it is necessary to switch the conveying direction of the conveyed material conveyed through the loop type conveying apparatus, the upper side of the traveling section at the time of traveling in one curve section. The present invention relates to a conveying direction switching system in a loop type conveying apparatus configured to rotate a conveyor formed in a non-powered manner so as to efficiently change a conveying direction of conveyed materials.

In general, a loop type transfer device which is widely used in an automated warehouse system is called a loop type robotic transfer vehicle (RTV) system, and the loop type transfer device is a conveyor image formed at the top of the transfer device at the receiving station. When the conveying device travels along the loop rail after the conveying material is loaded on the conveyance, the conveying device passes through one curve section, and the front and rear direction of the loaded conveyance is changed by 180 °, and the conveying device moves the curve section of the other side. The conveyance direction of the conveyed object is maintained in its original state by changing the front and rear directions of the conveyed material mounted again while passing.

However, in the case of having to leave the vehicle in the reverse direction as in the case of an automatic warehouse for waiting for the finished product of the automobile, when one has to leave the vehicle in the reverse direction, in order to solve the inconvenience as described above, one side is conventionally used to change the direction of the loaded cargo. A traverser was installed in the curve section, or a reorientation device was installed at the receiving or leaving station of the conveyed product so as to change the leaving direction of the conveyed product.

1 is a plan view showing a conveying direction switching system in a loop type conveying apparatus for changing the direction by installing a treverser according to the prior art, Figure 2 is a loop type conveying apparatus for changing the direction by installing a direction changing apparatus according to the prior art 1 is a plan view showing a conveying direction switching system in FIG. 1, in which the conveying material 40 mounted on the conveyor of the conveying device 50 at the receiving position in FIG. It is conveyed as it travels 10. As the conveying apparatus 50 passes through one side curve section, the conveyed object 40 mounted on the conveyor of the conveying apparatus 50 is rotated 180 degrees in the front and rear directions. After that, the conveyor unit 20 is installed in the other curve section and is transferred from the upper running rail to the lower running rail vertically by the treverser 20 performing reciprocating motion. Transferred object 40 is mounted on the eosang is to keep a state in which the front-rear direction of 180 ° rotation in one curve section it is possible to reach the factory station side.

Here, the feed rate when the front and rear direction of the conveyed object is rotated 180 ° by using the treverser 20 installed in one curve section as described above is compared with the feed speed in the general curve section as follows. .

* precondition

1) Finished Cars

2) Trevor's travel distance (St) 7 m

3) Travel speed of Trevorer (Vt) 30 m / min

4) Curved section moving distance (Sc) 11 m (7 m × ∏ ÷ 2)

5) Curve section moving speed (Vc) 10 m / min

6) Mounting distance of the transfer device to the traverser (St-1) 2.5 m

7) Loading speed of the traverser feeder (Vt-1) 30 m / min

* Sequence of movement of the traverser section of the feeder

1) Mounting transfer device with trevor

2) Move Trevorer

3) Carry out conveyer from trevor

4) Return to Trevor

* Calculate travel time (Tt) of Trevor section

1) Mounting transfer device with trevor

T1 = St-1 ÷ Vt-1

= 2.5 m ÷ 10 m / min

= 15 sec

2) Move Trevorer

T2 = St ÷ Vt

= 7 m ÷ 30 m / min

= 14 sec

3) Carry out conveyer from trevor

T3 = T1

= 15 sec

4) Return to Trevor

T4 = T2

= 14 sec

5) Tt = T1 + T2 + T3 + T4

= 15 sec + 14sec + 15 sec + 14sec

= 48 sec

* Calculation of travel time (Tc) for the curve section of the feeder

Tc = Sc ÷ Vc

= 11 m ÷ 30 m / min

= 22 sec

이송 There is a delay of 26 sec / cycle when the traverser section is transported compared to when the feeder is traveling in the curve section.

In addition, as shown in Figure 2 by installing a separate redirection device 30 in the receiving station or the delivery station of the loop-type transfer device by rotating the front and rear direction of the conveyed goods 180 ° before or after the receipt of the goods ( It is also possible to change the direction of 40).

Here, the time required to change the direction when the direction of the conveyed object 40 is changed by installing a separate redirection device 30 at the receiving station or the leaving station as described above, and FIG. 3A and FIG. 3B are layout layouts. The description is as follows.

1. Calculate turnaround time (Tr)

* precondition

1) Rotation Angle (Dr) 180 °

2) Rotational Speed (Vr) 6 ° / sec

* Time calculation

Tr = Dr ÷ Vr

= 180 ° ÷ 6 ° / sec

= 30 sec

30 Time delay of 30sec / cycle compared to general loop feeder.

2. Layout configuration of goods receipt or leaving station when installing redirection device

* precondition

1) Number of incoming and outgoing stations-3 stations, leaving-3 stations

2) At the time of change of direction

3) Entry and exit conveyor width 2100 mmW × 5600 mmL

4) Distance between stations 0.8m

설치 Loss of installation space equal to the radius of rotation of the conveyed material when installing the redirection device.

(A loss of about 11 m occurs as shown in FIGS. 3A and 3B based on the preconditions.)

Therefore, as shown in FIG. 1, when the treverser 20 is installed on one side of the curve section to rotate the front and rear directions of the conveyed article 40 by 180 °, the state is maintained. In addition, the feed speed is lower than the running speed of the curve section, and the treverser 20 can transfer the next conveyed product 40 only after performing one reciprocating motion, so that the efficiency is lowered when the throughput is large. In addition, as shown in FIG. 2, in addition to the installation or delivery station, a separate reorienting device 30 is installed to rotate the front and rear directions of the conveyed material 40 by 180 °. In addition to the deterioration of the problem, the installation cost is increased and the problem of economic feasibility occurred.

Therefore, the present invention has been made in order to improve the conventional problems as described above, the present invention is to rotate the conveyor formed on the upper portion of the conveying apparatus when the direction of the conveyed material mounted in the loop-type conveying apparatus without force It is an object of the present invention to provide a conveying direction switching system in a loop type conveying apparatus which improves economy by changing the direction of conveyed products quickly and efficiently.

According to a preferred embodiment of the present invention for achieving the object as described above, the conveying device mounted on the conveyor by driving the track formed in the lower portion and the conveyor formed on the upper portion of the loop driving the tracks In the loop-type conveying apparatus for conveying, the conveying apparatus includes a driving unit having a pivoting member for pivotally engaging the conveyor and a locking device for selectively fixing the conveyor at a predetermined position on the upper surface; And a locking groove rotatably coupled to an upper side of the driving unit by the pivotal coupling member, and a locking groove for fixing and detaching the locking unit to a predetermined position opposed to the locking unit, and one side of the driving unit under each corner. Carrying goods can keep a certain direction when driving in curve section And a guide roller coupled to the guide roller which induces rotation so that the guide roller coupled to the lower portion of the conveyor is formed to have a predetermined radius of curvature at one side of the curved section of the track formed in the loop shape. It characterized in that the first and second guide rails are formed to be able to travel.

Preferably, the locking device is operated by a hinge or the like when entering the curved section of the transfer device, and the rod-shaped operating member is formed inclined in the front end so as to press the lower portion, and descends downward as the operating member presses the lower portion, When the curve is separated, the semi-circular descending member, which is in the original position by the restoring force of the elastic member coupled to the lower portion, is integrally formed on the same plane through the lowering member and the connecting member, and descends simultaneously with the contraction of the lowering member. The upper end portion is separated from the locking groove formed in the conveyor, the lower member is raised and at the same time the upper end is composed of a substantially rod-shaped locking pin to be inserted into the locking groove again to prevent the rotation of the conveyor, or the transfer device Detects entry or exit into one curve segment A sensor part, a cylinder part driven up and down by sensing of the sensor part, and connected to an upper end of the cylinder part and descending as the cylinder part is driven so that the upper part is separated from the locking groove formed in the conveyor, and the inverse hole of the cylinder part At the same time it is characterized in that the upper end is composed of a substantially rod-shaped locking pin is inserted into the locking groove again.

According to the present invention made as described above, in the conveying device traveling on the track of the loop shape, the conveyed material mounted on the conveyor of the upper conveying device is rotated 180 ° while passing the curved section of one side, When passing through the other curve section, the conveyer is conveyed in a state in which the front and rear direction is maintained by the non-powered rotation of the conveyor, so that the front and rear direction of the conveyed goods received through the receiving station is rotated by 180 ° and released through the delivery station.

1 is a plan view showing a conveying direction switching system in a loop type feeder for changing the direction by installing a treverser according to the prior art;

Figure 2 is a plan view showing a conveying direction switching system in a loop type feeder for changing the direction by installing the direction change device according to the prior art;

Figure 3a is a plan view showing a typical entry and exit station,

Figure 3b is a plan view showing the entry and exit station with a redirection device according to the prior art,

4 is a plan view showing a conveying direction switching system in a loop type conveying apparatus according to the present invention;

5A is a front view showing a conveying direction switching system in a loop type conveying apparatus according to the present invention;

5B is a side view showing a conveying direction switching system in a loop type conveying apparatus according to the present invention;

6A and 6B are side cross-sectional views showing one embodiment of a locking device applied to a conveying direction switching system in a loop type conveying apparatus according to the present invention;

7A and 7B are side cross-sectional views showing another embodiment of a locking device applied to a conveying direction switching system in a loop type conveying apparatus according to the present invention;

8A to 8C are plan views showing the operation of the conveying direction switching system in the loop type conveying apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

10: orbit, 20: trevor,

30: redirection device, 40: returned goods,

50: feeder, 52: travel part,

54: rotational coupling member, 56: conveyor,

58: guide roller, 60: locking device,

62: locking groove, 64: operating member,

65: elastic member, 66: falling member,

67: connecting member, 68: locking pin,

69: cylinder portion, 70: sensor portion,

80: first guide rail, 82: second guide rail,

F: Front side of conveyed material, R: Rear side of conveyed object.

Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

Figure 4 is a plan view showing a conveying direction switching system in a loop type conveying apparatus according to the present invention, Figures 5a and 5b is a front view and a side view showing a conveying direction switching system in a loop type conveying apparatus according to the present invention, The transporter 50 for transporting the conveyed object 40 mounted on the upper conveyor while traveling on the track 10 made of a shape has a roller at the bottom to travel on the track 10 of the loop type according to the present invention. The conveyor 52 is formed to be rotatably coupled to the driving unit 52 and the upper side of the driving unit 52 by the rotation coupling member 54. The conveyor is located at a predetermined position on the upper surface of the driving unit 52. A locking device 60 is formed as shown in FIGS. 6A and 6B or 7A and 7B to selectively rotate or secure the 56 and the locking device 60 and the corresponding conveyor 56 of the locking device 60 are formed. Above the bottom The locking groove 62 is formed to insert and fix the locking device 60.

In addition, each corner portion of the bottom of the conveyor 56 having a substantially rectangular shape is guided to the first and second guide rails 80 and 82 which will be described later by the conveyor 56 with respect to the traveling part 52. Guide rollers 58 are respectively installed to proceed while rotating without power.

Here, the first and second guide rails (80, 82) is opened as shown in Figure 4, the front and rear sides are opened so that the guide roller 58 is inserted therein, and the central portion of the upper surface is opened. It is formed in a substantially rectangular frame shape and is formed to be bent to have a predetermined radius of curvature on the outer side of one or the other curve section of the track 10 made of the loop shape.

On the other hand, the locking device 60 is formed in the running portion 52 is according to the embodiment shown in Figs. 6a and 6b the transfer device 50 in one curve section of the rail-shaped rail 10 When the guide roller 58 installed in the lower portion of the conveyor 56 is inserted into the first guide rail 80 formed on the outer circumferential surface of the curved section of the rail 10 while being entered, the guide roller 58 is operated by a hinge or the like to move forward. The rod-shaped actuating member 64 is formed to be inclined at the front end to pressurize, and the upper surface is formed in a semi-circular shape so that the lower side of the actuating member 64 is easily pressed in accordance with the progress of the actuating member 64. The lower part is formed with a lower member 66 is coupled to the elastic member 65 for contracting and restoring action, the lower end is integrally formed on the same plane through the lower member 66 and the connecting member 67 of the plate The operating member 64 At the same time as the descending member (66) is contracted according to the operation while the upper end is separated from the locking groove 62 of the conveyor 56 to enable the non-rotating rotation of the conveyor 56, the transfer device 50 When the guide roller 58 is separated from the second guide rail 82 by passing through the curve section, the operating member 64 moves backward to restore the lower member 66 while the lower end thereof is lowered. A locking pin formed in a substantially conical shape so that the upper end is inserted into the locking groove 62 of the conveyor 56 to prevent rotation of the conveyor 56 while being raised simultaneously with the member 66. 68) is configured.

In addition, the locking device 60 is a guide roller 58 installed in front of one corner of the conveyor 56 according to another embodiment shown in Figure 7a and 7b one side of the rail 10 of the loop shape The guide roller 58 installed at the rear of one corner of the conveyor 56 is detected by entering the curve section and being inserted into the first guide rail 80 formed on the outer circumferential surface thereof. The sensor unit 70 is configured to detect the departure from the second guide rail 82 formed on the outer circumferential surface through the section.

In addition, the sensor unit 70 is connected to the cylinder unit 69 which is driven up and down, the cylinder unit 69 is the transfer unit 50 through the sensor unit 70 is the rail 10 When the entrance to one side of the curve is detected, the locking pin 68 coupled to the upper end is lowered and driven to separate from the locking groove 62 formed in the conveyor 56, and through the sensor unit 70 When the transfer device 50 detects a departure from one side of the curve section of the rail 10, the locking pin 68 is lifted up and driven back to be inserted into the locking groove 62 formed in the conveyor 56.

Next, the operation of the present invention made as described above will be described in detail with reference to FIG.

First, according to the present invention, the first and second guide rails 80 and 82 are installed on the outer circumferential surface of one curved section of the rail 10 in a loop shape, and the conveyed article mounted on the upper part while traveling the rail 10 ( The driving unit 52 and the conveyor 56 of the conveying device 50 for conveying 40 may be coupled to be selectively rotated without force, and the locking device 60 may be locked as shown in FIGS. 6A and 7A. The pin 68 is inserted into the locking groove 62 formed at the lower portion of the conveyor 56 to fix the traveling portion 52 and the conveyor 56 to be formed at a predetermined position of the rail 10. When the conveyed object 40 is mounted and conveyed on the conveyor 56 of the conveying apparatus 50 through the receiving station, the traveling part 52 of the conveying apparatus 50 travels the rail 10 while the rail is transported. As it passes through the curve section formed at one side of 10, the conveyed material 40 mounted on the conveyor 56 is The conveyance direction is rotated by 180 ° so as to travel through the rail 10 in a state where the front and rear of the conveyed object 40 are switched.

Then, when the transfer device 50 enters the other curve section of the rail 10, the locking device 60 is operated to lock pins of the locking device 60 as shown in FIGS. 6b and 7b. 68 is separated from the locking groove 62 of the conveyor 56, the conveyor 56 coupled to the running portion 52 is in a rotatable state.

In addition, as the transfer device 50 enters the other curve section of the rail 10, as shown in FIG. 8A, the guide roller 58 installed at the rear of one corner of the conveyor 52 is provided with the rail 10. After being inserted into the first guide rail 80 formed on the outer circumferential surface of the circumferential surface, the conveying device 50 reaches the peak of the curve section, as shown in FIG. The guide roller 58 formed is separated from the first guide rail 80 and at the same time, the guide roller 58 installed in front of one corner of the conveyor 56 is inserted into the second guide rail 82.

Therefore, the conveyor 56 moves the first guide rail 80 and the second guide rail 82 as the traveling part 52 of the transfer device 50 proceeds to the other curve section of the rail 10. Induced by the guide roller 58 to be inserted into the ()) to rotate without a force relative to the traveling portion 52 it is possible to prevent the transfer direction of the conveyed material 40 mounted on the upper portion.

In addition, the transfer device 50 passes through one side of the curve section of the rail 10, as shown in FIG. 8c, the guide roller 58 formed in front of one side edge of the conveyor 56 is the second guide rail. When it is disengaged from 82, the locking device 60 is operated so that the locking pin 68 is inserted into the locking groove 62 of the conveyor 56 as shown in Figs. 6A and 7A. The conveyor 56 coupled to the portion 52 is prevented from rotating.

Therefore, the conveyed article 40 mounted on the conveyor 56 at the upper part of the conveying apparatus 50 at the receiving station passes through the one curved section while the front and rear directions thereof are switched by 180 °, and then passes the other curved section. Since the front and rear directions of 40 are maintained, the goods are shipped through the delivery station in a state where the front and rear directions of the conveyed material 40 are switched by 180 degrees compared with the time of receipt.

On the other hand, the conveying direction switching system in the loop-type conveying apparatus according to the present invention can be selectively installed in one side or the other curve section according to the installation environment of course can obtain the same effect.

According to the present invention made as described above, when it is necessary to switch the front and rear direction of the conveyed material mounted in the loop type conveying device, the conveyor of the conveying device is configured to be rotatable and the guide roller is installed, and the other side curve is provided. The guide rail is installed on the outer circumferential surface of the section to maintain the forward and backward direction of the conveyed material, which is switched in one curved section, thereby minimizing the installation area of the redirection device for rotating the forward and backward direction of the conveyed object. In addition, there is an effect that can improve the economic efficiency by solving the problem that the transfer time of the conveyed material to be conveyed at the time of the change of the conveyed object.

Claims (3)

In the loop-type conveying apparatus for transporting the conveyed goods mounted on the conveyor while the conveying device is formed in the lower portion and the conveyor is formed on the upper portion of the conveyor traveling in a loop shape, The transfer device 50 has a rotational coupling member 54 for pivotally coupling the conveyor 56, and a locking device 60 for selectively fixing the conveyor 56 at a predetermined position on the upper surface. ) Is rotatably coupled to the upper side of the traveling portion 52 by the traveling portion 52 and the rotating coupling member 54, and the locking device at a predetermined position against the locking device 60. Locking groove 62 is fixed to and detached from the 60 is formed, the lower portion of each corner to guide the rotation so that the conveyed material 40 mounted at the one side curve section of the traveling portion 52 to maintain a certain direction The guide roller 58 is configured to include a conveyor 56, A first curved section of the loop section of the track 10 in the loop shape is formed to have a predetermined radius of curvature so that the guide roller 58 coupled to the lower portion of the conveyor 56 can be inserted and guided to travel. And a second guide rail (80, 82) is formed. The method of claim 1, The lock device 60 is A rod-shaped actuating member 64 which is operated by a hinge or the like when entering a curved section of the transfer device 50 and has a slanted front end portion to press the lower portion thereof; The operation member 64 descends to the lower side by pressing the lower portion, and the semi-circular descending member 66, which is returned to its original position by the restoring force of the elastic member 65 coupled to the lower portion when the curve section is separated, It is formed integrally on the same plane through the lower member 66 and the connecting member 67 and descends simultaneously with the contraction of the lower member 66 so that the upper end is separated from the locking groove 62 formed in the conveyor 56. And, the lower member 66 is raised at the same time as the original position and the upper end is inserted into the locking groove 62 is characterized in that it consists of a substantially rod-shaped locking pin 68 to prevent the rotation of the conveyor 56 Transfer direction switching system in loop type feeder. The method of claim 1, The lock device 60 is A sensor unit 70 for detecting that the transfer device 50 enters or leaves the one curve section; A cylinder portion 68 driven up and down by sensing of the sensor portion 70, It is connected to the upper end of the cylinder portion 69 and descends as the cylinder portion 69 is driven so that the upper portion is separated from the locking groove 62 formed in the conveyor 56, and at the time of reverse driving of the cylinder portion 69. It is raised, the conveying direction switching system in the loop-type conveying device, characterized in that the upper end is composed of a substantially rod-shaped locking pin 68 is inserted into the locking groove 62 again.