KR20220089358A - Stocker system for a tray - Google Patents

Abstract

Disclosed is a stocker system for conveying trays. A stocker system for transporting a tray according to an embodiment of the present invention, a mast frame (Two Mast Frame); and a tray forking unit movably connected to one side of the mast frame and conveying a tray through a predetermined forking operation, the tray forking unit comprising: a unit body; a tray fork provided on one side of the unit body and forking the tray; and a linear module coupled to the mast frame to linearly move the unit body.

Description

Stocker system for a tray transfer

The present invention relates to a stocker system for transporting trays, and more particularly, it is possible to maximize tray transport efficiency according to a forking operation, and in particular, transport the tray while maintaining optimum cleanliness under a clean environment. It relates to a stocker system for conveying trays that can.

A stocker system, also called a stocker device, is a logistics facility that transports objects. The object may be various, such as a cassette containing a substrate, a separator roll, a tray, and the like. Hereinafter, an object will be described as a tray.

1 is a schematic side structural diagram of a stocker system according to the prior art.

Referring to this drawing, the stocker system 1 according to the prior art has a traveling bogie 3 and a mast 4 that is arranged to stand upright on the traveling bogie 3 in the vertical direction and the lower end is fixed to the traveling bogie 3 , mast), and a fork unit (5, fork unit) that is movably coupled to the mast (4) up/down (up/down) to transfer and load the tray to the tray shelf (8).

Although not shown in detail for the fork unit 5, the fork unit 5 generally includes a driving structure of a single robot arm and a timing belt.

The stocker system 1 having this configuration is a tray through the operation of the fork unit 5, that is, the forking operation, that is, the fork unit 5 is moved up and down, left and right on the mast 4 while the traveling bogie 3 moves on the rail. A transfer loading process (handling) of unloading the tray from the shelf 8 or loading the tray on the tray shelf 8 is performed.

On the other hand, the stocker system 1 having this structure may be the most commonly used type in the vicinity. As described above, the conventional stocker system ( In case 1), driving shake and forking shake inevitably occur, and considering that the effect of such shake has a negative impact on tray conveyance efficiency and line cleanliness (cleanliness), this There is a need to develop technology to improve it.

Korean Intellectual Property Office Application No. 10-2008-0095260

Therefore, the technical problem to be achieved by the present invention is that it is possible to maximize the tray conveying efficiency according to the forking operation, and in particular, a stocker system for conveying trays that can convey the tray while maintaining the optimum cleanliness under a clean environment is to provide

According to an aspect of the present invention, a mast frame (Two Mast Frame); and a tray forking unit movably connected to one side of the mast frame and conveying a tray through a predetermined forking operation, wherein the tray forking unit includes: a unit body; a tray fork provided on one side of the unit body and forking the tray; and a linear module coupled to the mast frame for linear motion of the unit body.

The tray forking unit is provided to be connected to the unit body, the tray clamp (clamp) for clamping the tray on the tray fork while driving to approach or spaced apart the tray fork; and a clamp driving unit connected to the tray clamp and driving the tray clamp so that the tray clamp approaches or separates the tray fork.

The tray clamp may include a clamp hand; And it is connected to the tray clamp crosswise in the end region of the tray clamp, it may include a tray pressing support for pressing the tray with a large surface area.

The clamp driving unit may be provided as an orthogonal robot.

The tray forking unit may include: a hand arm integrally supporting the tray fork, the tray clamp, and the clamp driving unit; and an arm support connected to the hand arm and supporting the hand arm.

The tray forking unit may further include a support turn driving unit provided on the unit body, connected to the arm support, and turning the arm support.

The support turn driving unit may be a direct motor that is directly connected to the arm support on the unit body.

The linear module may include: a linear rail guide disposed in a straight line along a direction in which the unit body linearly moves; and a linear driving motor connected to the linear rail guide and the unit body and providing power for linear motion of the unit body.

The linear module may further include a motor cover casing that covers and protects the linear driving motor.

The mast frame may further include a traveling unit connected to the lower end and movably coupled to the traveling rail, but traveling along the longitudinal direction of the traveling rail.

The driving unit may include a plurality of driving power wheels rotating on the driving rail.

The driving rail and the driving unit may further include a non-contact power supply for supplying power for driving of the driving electric wheel in a non-contact manner.

The mast frame may be a pair of mast frames provided as a pair to be spaced apart from each other on the driving unit.

A frame reinforcement support for reinforcing the pair of mast frames by connecting the upper openings of the pair of mast frames may be further included.

It may further include a plurality of frame supporters connected to the mast frame to prevent shaking of the mast frame when the tray forking unit operates.

a ladder connected to the mast frame along the length direction of the mast frame; And it is provided in the upper region of the mast frame, it may further include a workbench at height for performing work at the corresponding location.

a signal input unit for inputting a signal for conveying the tray; and a system controller for controlling operations of the driving unit and the tray forking unit based on the input signal of the signal input unit.

According to the present invention, it is possible to maximize the tray conveying efficiency according to the forking operation, and in particular, it is possible to convey the tray while maintaining the optimum cleanliness under a clean environment.

1 is a schematic side structural diagram of a stocker system according to the prior art.
2 is a front structural view of a stocker system for conveying a tray according to an embodiment of the present invention.
3 is a view in which the tray and the wheel case are removed from FIG. 2 .
FIG. 4 is a perspective view of FIG. 3 ;
FIG. 5 is an enlarged perspective view of area A of FIG. 2 .
FIG. 6 is an enlarged perspective view of area B of FIG. 3 .
7 is a side view of FIG. 6 ;
8 is a perspective view of the tray forking unit;
9 is a view illustrating FIG. 8 from another angle.
FIG. 10 is a side view of FIG. 8 ;
11 is a plan view of the operation of FIG.
12 is a control block diagram of a stocker system for conveying a tray according to an embodiment of the present invention.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements.

2 is a front structural view of a stocker system for conveying a tray according to an embodiment of the present invention, FIG. 3 is a view with the tray and wheel case removed in FIG. 2 , FIG. 4 is a perspective view of FIG. 3 , and FIG. 5 is FIG. It is an enlarged perspective view of area A of FIG. 6 is an enlarged perspective view of area B of FIG. 3 , FIG. 7 is a side view of FIG. 6 , FIG. 8 is a perspective view of the tray forking unit, and FIG. One view, FIG. 10 is a side view of FIG. 8, FIG. 11 is a plan view of FIG. 8, and FIG. 12 is a control block diagram of a stocker system for conveying trays according to an embodiment of the present invention.

Referring to these drawings, the stocker system for transporting trays according to this embodiment can maximize tray transport efficiency according to a forking operation, and in particular, it can transport trays while maintaining optimal cleanliness under a clean environment. make it possible

The stocker system for conveying the tray according to the present embodiment that can provide this effect is to move the tray to another place on the shelf 8 as in FIG. It plays a role of conveying, i.e., loading and unloading. The tray may be a heavy object of 30 kg or more, and may have an empty box structure or a state in which the contents are contained inside.

The stocker system for transporting the tray according to this embodiment is the stocker system for transporting the tray according to this embodiment, the driving unit 120 and a pair of mast frames 130, Two Mast Frames disposed to be spaced apart from each other on the driving unit 120 ), and a tray forking unit 150 (tray forking unit) for conveying (transferring) the tray through a forking operation.

The traveling unit 120 is movably coupled to the traveling rail 110 , and travels along the longitudinal direction of the traveling rail 110 . The driving unit 120 includes a plurality of driving power wheels 121 that roll and rotate on the driving rail 110 .

In this embodiment, the number of driving electric wheels 121 is four. However, the scope of the present invention is not limited to the number thereof. That is, four or more driving power wheels 121 such as six may be applied, and it should be said that all of these matters fall within the scope of the present invention.

A wheel case 122 is provided on the driving electric wheel 121 . Accordingly, it is possible to prevent scattering of foreign substances or particles generated during driving. A plurality of brushes 123 are provided around the driving power wheel 121 . When the driving power wheel 121 moves on the driving rail 110 , the brushes 123 disposed at the front and back of the driving power wheel 121 are in the form of wiping the surface of the driving rail 110 , so that on the driving rail 110 . It can prevent foreign matter or particles from accumulating.

A non-contact power supply 115 (refer to FIG. 7 ) for supplying power for driving of the driving electric wheel 121 in a non-contact manner is provided on the driving rail 110 and the driving unit 120 . Since the non-contact power supply 115 is applied, the structure can be simplified.

The non-contact power supply 115 may have a structure applied to a monorail system. That is, the non-contact power supply 115 may include a power supply panel, an induction cable, a pickup coil, and a configuration of a power receiving device. The power supply panel converts the commercial power supply to a frequency suitable for the contactless power supply and provides power to the inductive cables. Induction cables are special power lines installed along the rails of moving objects. A magnetic field is created around the cable to efficiently transmit power to a moving object. The pickup coil is installed on the surface of the moving object opposite to the induction cable, and is powered from the magnetic field around the induction cable. The power receiver stabilizes the power that the pickup coil receives and delivers high-quality power to the inverter and servo driver.

Of course, other types of non-contact power supply 115 may also be applied, and the specific structure and principle of such non-contact power supply 115 will refer to data previously filed by the present applicant and will be omitted here.

A guard 118 is provided on the opposite side of the non-contact power supply 115 . The guard 118 serves to protect the driving power wheel 121 when it deviates from the track.

The mast frame 130 is an external skeletal structure of the stocker system for conveying trays according to an embodiment of the present invention. The mast frame 130 has its lower end connected to the traveling unit 120 and disposed along the vertical direction. The mast frame 130 is disposed as a pair to be spaced apart from each other on the driving unit 120 . That is, in the present embodiment, a pair of mast frames 130 are applied.

A plurality of frame supporters 131 are provided in the mast frame 130 to prevent the mast frame 130 from shaking when the tray forking unit 150 operates. A plurality of mast frames 130 may be applied to one mast frame 130 .

A ladder 132 is connected to the mast frame 130 in the longitudinal direction of the mast frame 130 . In addition, in the upper region of the mast frame 130 , a high-altitude workbench 133 for performing work at a height of the corresponding position is provided. Upper work through the long mast frame 130 is possible due to the ladder 132 and the aerial platform 133.

A frame reinforcement support 140 is provided in the upper opening of the pair of mast frames 130 . The frame reinforcement support 140 serves to reinforce the pair of mast frames 130 by connecting the upper openings of the pair of mast frames 130 .

In this embodiment, in order to secure the maximum storage capacity (Capa) in a limited space, the frame reinforcement support 140 in a state in which the upper guide rail (Guide Rail, not shown) is removed is applied. In other words, the frame reinforcement support 140 is not provided with a separate guide rail (Guide Rail) structure that has been provided in the existing stocker system. Accordingly, it is possible to secure the maximum storage capacity (Capa) in a limited space.

Meanwhile, the tray forking unit 150 is movably connected to one side of the mast frame 130 , and serves to convey the tray through a predetermined forking operation. In this embodiment, the tray forking unit 150 is applied as a dual tray forking unit 150 that is movably coupled to each of a pair of mast frames 130 .

The tray forking units 150 may perform a tray transfer operation while each independently driving as shown in FIGS. 2 to 3 . Therefore, even with a single piece of equipment, the tray conveyance efficiency can be significantly improved compared to the prior art.

As shown in detail in FIGS. 8 to 11 , the tray forking unit 150 includes a unit body 151 , a linear module 160 , a tray fork 152 , a tray clamp 153 and a clamp driving unit 154 . may include

The unit body 151 forms an external structure of the tray forking unit 150 . Several parts can be built inside, and supports the configuration of the tray fork 152, the tray clamp 153, and the clamp driving unit 154.

The linear module 160 is coupled to the mast frame 130 but serves to linearly move the unit body 151 . That is, the linear module 160 linearly moves all the components connected to the unit body 151 together.

The linear module 160 is connected to a linear rail guide 161 disposed in a straight line along the direction in which the unit body 151 linearly moves, the linear rail guide 161 and the unit body 151, and the unit body ( 151) may include a linear drive motor 162 that provides power for the linear motion.

As such, when the unit body 151, that is, the tray fork 152 connected to the unit body 151, the tray clamp 153, and the clamp driving unit 154 is linearly moved using the linear module 160, the timing belt Since there is no need to apply the tray, the tray can be conveyed while maintaining the optimum degree of cleanliness under a clean environment.

A motor cover casing 163 is connected to the linear driving motor 162 . The motor cover casing 163 is a casing that covers and protects the linear driving motor 162 , and serves to protect the linear driving motor 162 or prevent particle scattering from the linear driving motor 162 .

The tray fork 152 is provided on one side of the unit body 151 and is a means for forking the tray. That is, the tray can be forked while supporting the tray from below. For effective forking, a forking stopper 152a may be provided at the end of the tray fork 152 . The forking stopper 152a serves to be caught on one side of the lower end of the tray, and due to the forking stopper 152a, slipping of the tray can be prevented during forking.

A plurality of through holes 152b are formed in the tray fork 152 to prevent power loss by reducing the weight of the tray fork 152 while maintaining the rigidity. Of course, since the through hole 152b is not necessarily formed, a tray fork (not shown) without the through hole 152b may be applied.

The tray clamp 153 is provided to be connected to the unit body 151 and serves to clamp the tray on the tray fork 152 while approaching or driving the tray fork 152 apart.

This tray clamp 153 is connected to the clamp hand 153a and the tray clamp 153 in the end region of the tray clamp 153, and includes a tray pressing support 153b for pressing the tray with a large surface area. can

The clamp driving unit 154 is connected to the tray clamp 153 , and serves to drive the tray clamp 153 so that the tray clamp 153 approaches or drives the tray fork 152 apart.

That is, after the tray is forked on the tray fork 152 , the tray clamp 153 comes down and the clamp driving unit 154 is provided in the tray forking unit 150 to press and clamp the tray together with the tray fork 152 . do.

In this embodiment, the clamp driving unit 154 is provided as an orthogonal robot. Accordingly, since there is no need to apply a timing belt or the like as in the past, it is possible to contribute to conveying the tray while maintaining the optimum degree of cleanliness under a clean environment.

In addition to these configurations, the tray forking unit 150 applied to this embodiment is further equipped with a hand arm 155 , an arm support 156 and a support turn driving unit 157 .

The hand arm 155 is a structure that integrally supports the tray fork 152 , the tray clamp 153 , and the clamp driving unit 154 . The arm support 156 is connected to the hand arm 155 and serves to support the hand arm 155 .

Then, the support turn driving unit 157 is provided on the unit body 151 and connected to the arm support 156, and the arm support 156 is turned on like a solid line in the dotted line in FIG. 11 or a dotted line in a solid line. serves to make Since the tray fork 152, the tray clamp 153, and the clamp driving unit 154 are connected to the arm support 156, when the arm support 156 is turned and driven, the tray fork 152, the tray clamp 153 and the clamp driving unit 154 may be turned and driven together.

In the present embodiment, the support turn driving unit 157 is applied as a direct motor that is directly connected to the arm support 156 on the unit body 151 . Therefore, it helps to suppress the generation of particles, and also the structure can be simplified.

On the other hand, in the stocker system for conveying the tray according to the present embodiment, the signal input unit 180 and the system controller 190 are further mounted to control the system.

The signal input unit 180 serves to input a signal for conveying the tray. It may be in the form of a button or a touch screen.

The system controller 190 controls the operation of the driving unit 120 and the tray forking unit 150 based on the input signal of the signal input unit 180 . The system controller 190 operates the driving unit 120 and the tray forking unit 150 so that the tray on the shelf 8 as shown in FIG. 1 can be moved to another place or the tray from another place can be transported to the shelf 8 to control In particular, at this time, since a plurality of, that is, the dual tray forking unit 150 is applied and they are driven individually, it is possible to perform a multi-directional, for example, two-way, simultaneous random tray loading and loading operation, so that even one piece of equipment is used to convey the tray Efficiency can be significantly improved compared to the prior art.

The system controller 190 performing this role may include a central processing unit (CPU) 191, a memory (192, MEMORY), and a support circuit (193, SUPPORT CIRCUIT).

The central processing unit 191 is one of various computer processors that can be industrially applied to control the operation of the driving unit 120 and the tray forking unit 150 based on the input signal of the signal input unit 180 in this embodiment. can be one

The memory 192 (MEMORY) is connected to the central processing unit (191). The memory 192 may be installed locally or remotely as a computer-readable recording medium, and may be easily available such as random access memory (RAM), ROM, floppy disk, hard disk, or any digital storage form. It may be at least one memory.

The support circuit 193 (SUPPORT CIRCUIT) is coupled to the central processing unit 191 to support typical operations of the processor. The support circuit 193 may include a cache, a power supply, a clock circuit, an input/output circuit, a subsystem, and the like.

In this embodiment, the system controller 190 controls the operation of the driving unit 120 and the tray forking unit 150 based on the input signal of the signal input unit 180, such a series of control processes such as the memory 192 can be stored in Typically, software routines may be stored in memory 192 . Software routines may also be stored or executed by other central processing units (not shown).

Although the process according to the present invention has been described as being executed by a software routine, it is also possible that at least some of the processes of the present invention are performed by hardware.

As such, the processes of the present invention may be implemented in software executed on a computer system, implemented in hardware such as an integrated circuit, or implemented by a combination of software and hardware.

According to this embodiment, which operates with the structure as described above, it is possible to maximize the tray conveyance efficiency according to the forking operation, and in particular, it is possible to convey the tray while maintaining the optimum cleanliness under a clean environment. do.

As such, the present invention is not limited to the described embodiments, and it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, it should be said that such modifications or variations fall within the scope of the claims of the present invention.

110: traveling rail 115: non-contact power supply
120: driving unit 121: driving electric wheel
130: mast frame 131: frame supporter
132: ladder 133: aerial work platform
140: frame reinforcement support 150: tray forking unit
151: unit body 152: tray fork
153: tray clamp 153a: clamp hand
153b: tray pressure support 154: clamp driving unit
155: hand arm 156: arm support
157: support turn driving unit 160: linear module
161: linear rail guide 162: linear drive motor
163: motor cover casing 180: signal input unit
190: system controller

Claims (17)

Two Mast Frames; and
and a tray forking unit movably connected to one side of the mast frame and conveying a tray through a predetermined forking operation,
The tray forking unit,
unit body;
a tray fork provided on one side of the unit body and forking the tray; and
A stocker system for tray transport, characterized in that it includes a linear module coupled to the mast frame for linear motion of the unit body. According to claim 1,
The tray forking unit,
a tray clamp provided to be connected to the unit body and configured to clamp the tray on the tray fork while approaching or spaced apart from the tray fork; and
It is connected to the tray clamp, the tray transport stocker system, characterized in that it further comprises a clamp driving unit for driving the tray clamp to drive the tray clamp to approach or spaced apart from the tray fork. 3. The method of claim 2,
The tray clamp,
clamp hand; and
A stocker system for conveying trays, which is connected to the tray clamp in an end region of the tray clamp, and includes a tray pressing support for pressing the tray with a large surface area. 3. The method of claim 2,
Tray transport stocker system, characterized in that the clamp driving unit is provided as an orthogonal robot. 4. The method of claim 3,
The tray forking unit,
a hand arm integrally supporting the tray fork, the tray clamp, and the clamp driving unit; and
The stocker system for transporting trays further comprising an arm support connected to the hand arm and supporting the hand arm. 4. The method of claim 3,
The tray forking unit,
The stocker system for transporting trays, which is provided on the unit body and connected to the arm support, further comprising a support turn driving unit for turning the arm support. 7. The method of claim 6,
The tray transport stocker system, characterized in that the support turn driving unit is a direct motor that is directly connected to the arm support on the unit body. According to claim 1,
The linear module is
a linear rail guide disposed in a straight line along a direction in which the unit body linearly moves; and
The stocker system for tray transport, characterized in that it is connected to the linear rail guide and the unit body, comprising a linear drive motor for providing power for the linear motion of the unit body. 9. The method of claim 8,
The linear module is
The stocker system for tray transport, characterized in that it further comprises a motor cover casing to cover and protect the linear drive motor. According to claim 1,
The lower end of the mast frame is connected to the tray transport stocker system, characterized in that it further comprises a traveling unit coupled to the traveling rail movably traveling along the longitudinal direction of the traveling rail. 11. The method of claim 10,
The driving unit is a stocker system for transporting trays, characterized in that it includes a plurality of driving power wheels rotating on the traveling rail. 11. The method of claim 10,
The tray transport stocker system, which is provided on the driving rail and the driving unit, and further comprises a non-contact power supply for supplying power for driving of the driving electric wheel in a non-contact manner. 11. The method of claim 10,
The mast frame is a stocker system for transporting trays, characterized in that the pair of mast frames are provided as a pair to be spaced apart from each other on the traveling unit. 14. The method of claim 13,
The stocker system for transporting trays further comprising a frame reinforcement support for reinforcing the pair of mast frames by connecting the upper openings of the pair of mast frames. According to claim 1,
The stocker system for transporting trays, further comprising a plurality of frame supporters connected to the mast frame and preventing shaking of the mast frame when the tray forking unit operates. According to claim 1,
a ladder connected to the mast frame along the longitudinal direction of the mast frame; and
The stocker system for transporting trays, which is provided in the upper region of the mast frame, and further comprises a workbench at a height for performing work at a height of the corresponding position. 11. The method of claim 10,
a signal input unit for inputting a signal for conveying the tray; and
The stocker system for transporting trays further comprising a system controller for controlling the operation of the traveling unit and the tray forking unit based on the input signal of the signal input unit.

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