JPH1077109A - Article storage equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a posture of an article held by an article holding body uncollapsible when housing shelves swingingly move with a simple structure, and quickly regulate a movement of its article holding body to the article taking in and out port side. SOLUTION: Housing shelves A and B having a housing part 1 to house an article held by an article holding body C together with the article holding body, is provided, and the housing part 1 is divided in a condition of having an article taking in and out port 1a opening in the horizontal direction, and a movement regulating means H to regulate a movement of the housed article holding body to the article taking in and out port side, is constituted by arranging a magnetic substance 8 on the article holding body side, an electromagnetic attracting means 9 which is arranged on the housing part side and can attract to the magnetic substance of the article holding body housed in its housing part and a switching means 9a to switch the attracting means to an attracting condition and an attraction released condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage shelf provided with a plurality of storage sections for storing articles held by article holders together with the article holders, wherein the storage sections are open horizontally. The present invention relates to an article storage facility that is partitioned in a state provided with an article inlet / outlet.

[0002]

2. Description of the Related Art Conventionally, as an article storage facility, for example, as described in Japanese Patent Publication No. Hei 2-24721,
Even if the storage shelf rocks in the event of an earthquake, collision of another object with the storage shelf, etc., the movement of the article holder to the article entry / exit side of the article holder can be prevented so as to prevent the article holder from falling out of the article entry / exit port. There is provided a movement restricting means for restricting the movement. This movement restricting means is provided with a locking piece on the article holder side, and moves out and back between a locking position where the locking piece is locked and an unlocking position. A locking device is provided on the storage unit side, and the locking device is locked to the locking piece on the article holder side stored in the storage unit, thereby restricting the movement of the article holder toward the article slot. Even if the storage position of the article holder with respect to the storage section in the article insertion / removal direction is slightly shifted, the locking piece can be locked to the locking piece of the article holder. The article is taken out at a relative position between the locking member that can be locked to the locking piece and the article holder. Re has to have a direction of play.

[0003]

Therefore, the structure for moving the locking tool between the locking position and the unlocking position is complicated, and when the storage shelf swings, the article holding member is moved. However, there is a drawback that the object moves in the direction of taking in and out of the article within the range of the play, and the posture of the article held by the article holding body is easily collapsed. In addition, since the locking tool is moved back and forth between the locking position and the unlocking position, the switching operation takes time. In particular, the locking tool is normally positioned at the unlocking position during normal operation.
When vibration due to an earthquake or the like is sensed, the locking device is moved from the unlocked position to the locking position, and when the movement of the article holder toward the article entrance is restricted, the locking device is engaged. Before moving to the stop position, there is a risk that the article holder may move to the article inlet / outlet side to a position where it cannot be locked by the locking tool, and it is difficult to effectively prevent the article from falling out of the article inlet / outlet. There is. The present invention has been made in view of the above circumstances, and by devising a regulation structure of a movement regulating means, the posture of an article held by an article holder when the storage shelf swings with a simple structure. It is an object of the present invention to make it possible to quickly control the movement of the article holder toward the article inlet / outlet side.

[0004]

According to a first aspect of the present invention, there is provided an article storage facility, wherein a movement restricting means for restricting the movement of the article holder stored in the storage section toward the article slot is provided on the article holder side. A magnetic body that is provided on the storage unit side, an electromagnetic suction unit that is provided on the storage unit side, and that sticks to the magnetic body of the article holder that is stored in the storage unit; When the suction means is switched to the suction state, the magnetic material on the article holder side stored in the storage portion is instantly adsorbed by the suction means, and the article of the article holder is switched to the suction state. Movement to the inlet / outlet side is regulated in a state where it is unlikely to be displaced and moved from the suction position, and when the suction means is switched to the suction release state, the suction of the magnetic material is immediately released. Therefore, with a simple structure that does not require the provision of a special movable member, the posture of the article held by the article holder hardly collapses when the storage shelf swings, and the magnetic material is instantly adsorbed by the adsorption means. Therefore, the movement of the article holder toward the article entrance can be quickly regulated.

[0005] In the article storage facility according to the second aspect, the area of the surface to be attracted of the magnetic material is set to be larger than the area of the attracting surface of the attracting means. Even if there is some deviation, the attraction surface can be easily attracted to the magnetic body without providing an attraction device having a large attraction surface, and the attraction device can be downsized to further simplify its structure.

According to a third aspect of the present invention, there is provided the article storage facility, wherein the suction member of the suction means is provided so as to move toward the outer surface side of the article holder by the attraction force to the magnetic material. Since the engaging portion is provided which is engaged with the adsorbing member approached toward the outer surface side and regulates the horizontal movement of the article holder toward the article inlet / outlet side, the swing movement of the storage shelf is large, and the adsorbing member is provided. Even if the article holder easily moves relative to the suction member in a state in which the article is adsorbed on the magnetic material, the horizontal movement to the article inlet / outlet side can be performed by engaging the suction member with the article holder. It can be reliably prevented.

In the article storage facility according to the fourth aspect, since the article holding body is formed by resin molding by inserting the magnetic body, the mounting structure of the magnetic body to the article holding body can be simplified.

According to a fifth aspect of the present invention, in the article storage facility, a vibration detecting means for detecting a vibration state of the storage portion, and a control for switching the suction means to the suction state when the vibration detecting means detects a preset vibration state. Means is provided, so that the suction means is normally switched to the suction release state regardless of the presence or absence of storage of the article holder, thereby simplifying the switching control configuration and setting vibration state. When the vibration corresponding to (1) occurs, the suction unit switches to the suction state, and the movement of the article holder toward the article entrance can be quickly regulated in response to a sudden situation such as an earthquake.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION

[First Embodiment] FIGS. 1 and 2 show a storage unit 1 for storing a plurality of types of small parts and other articles stored and held separately in a resin container C as an article holder. A plurality of storage shelves A and B, each of which has a plurality of containers arranged vertically and horizontally, an article transfer device 2 as transfer means for transferring the articles into and out of the storage section 1 together with the container C, and an article loading / unloading port 1a. Two storage shelves A facing each other,
Moving means for moving the article transfer device 2 to a position between the space B and the front of the two storage shelves A and B, in which articles can be put in and taken out of the desired storage section 1 together with the container C. D shows an article storage device as an example of an article storage facility provided with D.

[0010] The article storage device is provided with one of two storage shelves A and B arranged opposite to each other at a predetermined interval.
Is provided with an article carrying-in / out section E in which two working sections E1 and E2 for carrying in / out articles from the front side of the apparatus corresponding to the back side of the storage shelf A are arranged side by side. Within the space between A and B, an elevating table 3 having substantially the same width as those of the storage shelves A and B is provided so as to be freely movable up and down over substantially the entire vertical height of the storage shelves A and B.

Each of the storage shelves A and B has a plurality of horizontal frames 1 in which columns 1b arranged on the front and rear sides of the shelf are arranged at predetermined intervals in the vertical direction.
horizontal frame 1 connected at the same height
c are connected to each other by a large number of locking members 1d arranged at predetermined intervals in the width direction of the shelf, and a plurality of storage sections 1 for placing and storing the containers C in the locking members 1d are arranged vertically and vertically. They are provided side by side in the width direction.

The locking member 1d is formed to have a substantially L-shaped cross section so as to mount and support both side edges of the container C in the width direction of the shelf and to prevent movement of the container C in the width direction of the shelf. The end of the mounting surface on the side 1a is constituted by a guide portion 1e bent downward and obliquely so as to smoothly transfer the container C, and the container C mounted on the locking member 1d.
Is prevented by a panel G that covers the front and rear surfaces of the apparatus, and the two storage shelves A and B are connected to each other by a vertical frame 1f at the upper end of each support 1b. Therefore,
Each storage section 1 has an article opening / closing port 1a that opens in the horizontal direction.
, The partition member G is partitioned by the locking member 1d and the panel G so as to restrict the container C from falling.

The article loading / unloading section E is provided at a vertically intermediate portion of the storage shelf A on the front side of the apparatus over substantially the entire width in the width direction of the shelf, and each of the working sections E1 and E2 has a substantially waist of the worker. A plurality of worktables 5 on which the containers C are placed are provided at the heights corresponding to the positions, and each of the work units E1 and E2 controls that the carry-in / out work in the work units E1 and E2 is completed. A work completion switch E3 for inputting to the section F is provided.

As shown in FIG. 3, each of the work tables 5 is driven by rolling of a traveling roller 5e supported on the work table 5 and a support roller 5f supported on a fixed table 5a fixed to the horizontal frame 1c. A transfer work position at which the container C is transferred by the article transfer device 2 along a guide rail 5g provided on the fixed base 5a, and a loading / unloading projecting outside the device from the transfer work position. It is provided so that it can move in and out separately over the work position, and when it retreats to the transfer work position,
A locking hook 5b provided on the worktable 5 side is locked by its own weight to a lock device 5c attached to an outer surface on one side of the fixed table 5a, so that the position of the worktable 5 is fixed. On the front side of the apparatus 5, there is provided a contact part 5 d for preventing the container C from jumping out of the worktable 5 by contact with the container C during the transfer operation by the article transfer apparatus 2. Is provided.

Each of the storage sections 1 is provided with a movement restricting means H for adsorbing the container C stored in the storage section 1 in the event of an earthquake or the like and restricting its movement toward the article entrance 1a. Have been. The movement restricting means H is shown in FIG.
As shown in FIG. 5, a magnetic body 8 provided on the bottom side of the container C and a horizontal frame 1c on the storage section 1 side are attached via a resin holder 9c, and are stored in the storage section 1. An electromagnet 9 serving as an electromagnetic attracting means for attracting the magnetic material 8 of the container C, and a changeover switch serving as a switching means for switching ON / OFF the excitation state of the electromagnet 9 between the attracting state and the releasing state. 9a, and two magnetic bodies 8 are provided before and after the container C so that the electromagnet 9 can attract the container C regardless of the direction in which the container C is moved in and out.

The changeover switch 9a is common to the electromagnets 9 provided in the respective housings 1, and has an ON / O
The electromagnets 9 provided in all of the storage sections of the storage shelves A and B are provided so that they can be simultaneously switched between an adsorption state and an adsorption release state by FF operation. The area of the attracted surface 8 a of the magnetic body 8 is set to be larger than the area of the attracted surface 9 b of the electromagnet 9.

As shown in FIG. 6, one end of a connecting wire 3b wound around four guide drums 3a located above both sides in the lateral direction of the shelf of the elevator 3 is connected to the elevator 3 as shown in FIG. 3 is a rectangular cylindrical wire support 3c provided at both ends in the horizontal direction.
And the other end of each connecting wire 3b is connected to a balance weight 3d which can be moved up and down along a weight guide rail 3e formed on one side of the elevating passage of the elevating platform 3 so as to be balanced. Each guide drum 3a on the side
Is driven and rotated by the electric motor M1 in the forward and reverse directions so that the lift table 3 is moved up and down along a predetermined lift path.
The lifting platform 3 is partitioned by a rotary encoder (not shown) for detecting the amount of vertical movement and a shielding plate (not shown) provided at an appropriate position on the storage shelf A side to determine the lifting stop position of the lifting platform 3. Is provided with a transmission type photoelectric sensor (not shown).

The elevator 3 is provided with a moving body 4 which moves laterally over substantially the entire width of the elevator.
The moving body 4 is provided with an article transfer device 2 for transferring articles together with the containers C between the working units E1 and E2 and the storage units 1 of the storage shelves A and B. A control unit F is provided for controlling the lifting operation of the moving member 3, the lateral movement operation of the moving body 4, and the transfer operation of the article transfer device 2. Therefore, the lifting platform 3 and the moving body 4 are connected to the article transfer device 2.
Is moved to a position at which articles can be moved into and out of the desired storage section 1 together with the container C.

As shown in FIGS. 7 and 8, the moving body 4 sandwiches a horizontal guide rail 3f, which is horizontally provided on the moving body frame 4a along the shelf width direction on the moving body frame 4a, from above and below. A drive belt 3h is wound around a pulley 3g supported at both ends in the width direction of the shelf of the elevating platform 3 and supported by upper and lower rollers 4b and left and right rollers 4c sandwiched from the left and right directions. The movable body 4 is connected to the moving body frame 4a and one of the pulleys 3g is driven to rotate forward and reverse by the electric motor M2 so that the moving body 4 can reciprocate in the shelf width direction along the horizontal guide rail 3f. On one side of the moving body frame 4a,
It is partitioned by a rotary encoder 4d that detects the amount of lateral movement based on the amount of rotation of the left and right rollers 4c that roll while sliding on the horizontal guide rail 3f, and a shielding plate 3j provided at an appropriate position on the lifting platform 3 side. A transmission-type photoelectric sensor 4e for determining the horizontal movement stop position of the moving body 4 is provided, and an article loading / unloading section E is provided above the moving body frame 4a.
When the transfer of the container C is performed, an ultrasonic presence / absence sensor 4f for detecting whether or not an operator is present near the work units E1 and E2 to be transferred is provided. .

The article transfer device 2 has a pair of belt conveyors 2a for placing the container C and transporting the container C in the front-rear direction by driving the electric motor M5. The movable body frame 4a is provided with a locking type transport mechanism 2b that slides over a position where the movable body 4 is placed on each storage unit 1 or the worktable 5 and a position where the movable body 4 is placed on the movable body 4. .

The locking type transport mechanism 2b is provided on a vertically movable body 6 which can be moved up and down along four vertical guide rails 2c provided on a movable body frame 4a, and a guide provided on the vertically movable body 6. The vertically movable body 6 along the rail 6a
A sliding plate 6b which slides relatively in the front-rear direction with respect to the lifting platform, and both ends of the plate body are bent upward to bend the locking member 7 whose bent portion is configured as a container locking portion 7a. The lifting / lowering body 6 is rotatably operated by the electric motor M3 together with the slide plate 6b and the locking member 7 together with the sliding plate 6b and the locking member 7 so as to be slidable in the front-rear direction along the locking member guide rail 6c provided on the slide plate 6b. With the eccentric cam 6d, the container locking portion 7a is located at a retracted position below the mounting surface of the belt conveyor 2a, and the locking operation is to protrude above the mounting surface and lock the container C. It is configured to be moved up and down over the position.

A pinion gear 6f meshing with a rack gear 6e formed on the side of the slide plate 6b is supported by the elevating movable body 6, and the pinion gear 6f is driven to rotate by an electric motor M4 to move the slide plate 6b back and forth. The end of the roller chain 6h wound around one of the sprockets 6g supported on both sides of the slide plate 6b in the slide movement direction is moved up and down with one side in the slide movement direction of the locking member 7. The other end of the roller chain 6h wound around the other sprocket 6g is fixed to the other side in the sliding movement direction of the locking member 7 and the opposite side of the lifting / lowering body 6 while being fixed to the opposite side of the body 6. And slide plate 6
The latch 7 is configured to move relative to the slide plate 6b in the same direction as the slider b is slid in the front-rear direction.

Next, the transfer operation of the container C by the article transfer device 2 will be described. In the standby state in which the lock 7 waits at the home position indicated by the solid line in FIG. 8, the electric motor M4 is driven to place the slide plate 6b and the lock 7 on the storage section 1 or the article carry-in / out section E. The container C is moved toward the container C, and the container locking portion 7a is inserted under the engaging portion C1 of the container C. Then, the lifting / lowering moving body 6 is raised to lock the container locking portion 7a to the engaging portion C1 of the container C. In this state, when the slide plate 6b is moved in the reverse direction, the container C is moved to the article transfer device. 2, and at this time, by each belt conveyor 2 a driven and rotated in synchronization with the locking movement speed,
The container C moves smoothly with little frictional resistance due to the sliding movement, and when the locking member 7 moves to the center position, the lifting / lowering moving body 6 is lowered, and thereafter the belt conveyor 2a
To move the container C to a predetermined position. Further, the container C placed on the moving body 4 operates in a reverse manner to the above, and
It is transferred to the storage section 1 or the article carry-in / out section E.

Next, the control operation of the control unit F will be briefly described. The control unit F is provided with an input operation panel F1 for inputting an article transport instruction. The operator selects a work mode by using the input operation panel F1, and selects an "entry mode", an "exit mode", and an external central management. "Picking and unloading mode" for executing unloading based on a command from a device (not shown). When the number of components loaded in the container C is different from the number managed by the control unit F, the component is removed. One of "replenishment storage" to replenish is instructed.

The position of each storage section 1 and the part number and the like loaded in the container C stored in the storage section 1 are input to the control section F in advance, and, for example, the parts are stored in the container C. In this case, when the "receiving mode" is specified on the operation panel and the part numbers and the working units E1 and E2 to be operated are specified, the control unit F executes the transfer operation control as follows.

The control unit F corresponds to the height of the storage unit 1 in which the container C corresponding to the part number specified by driving the electric motor M1 for raising and lowering is stored based on the operation on the input operation panel F1. The moving body 4 is moved laterally to a position corresponding to the storage section 1 by driving the electric motor M2 for lateral movement while the elevating table 5 is moved up and down to the elevating position where the container C is moved. Is moved onto the moving body 4, and the moving body 4 is laterally moved while moving the elevating table 3 upward and downward toward the designated work units E1 and E2 in the same manner as the above-described control. Then, the container C is transferred onto the work table of the specified work units E1 and E2 by the transfer work by the user, and the unloading of the container is completed.

When the operator slides the work table 5 to the carry-in / out position to perform the component loading operation and then slides the work table 5 to the transfer work position and operates the work completion switch E3, The control unit F transports the container C from the working units E1 and E2 to the predetermined storage unit 1 in the same manner as the above-described control, and the loading operation of the container C ends,
The operator inputs the part number and the number of stocked parts on the operation panel of the control unit F, and corrects the inventory management number of the part by the control unit F.

An accelerometer J is provided at an upper position of the storage shelf A as a vibration detecting means for detecting a vibration state of the storage section 1 and inputting the detected state to the control section F. The acceleration is compared with a preset acceleration to determine a preset vibration state, that is, whether or not the vibration exceeds the preset acceleration. If the vibration exceeds the preset acceleration, the electromagnet 9 is set to the excited state. By operating the changeover switch 9a to switch over, all of the electromagnets 9 provided in each storage unit 1 are attracted to the magnetic body 8 of the container C stored in the storage unit 1 in a state of being in close contact with each other, and It is configured to switch to a suction state in which the stored container C is suction-held. Accordingly, when the control unit F detects a set vibration state set by the accelerometer J in advance, the control unit F is configured to control the electromagnet 9 to be switched to the attracted state. It is kept in the excited state.

[Second Embodiment] FIG.
As shown in FIG. 9A, a non-magnetic resin guide 10 for holding an electromagnet 9 as an attraction member slidably in a vertical direction is attached to a horizontal frame 1c. ing. Then, when the electromagnet 9 is excited, as shown in FIG. 9B, the electromagnet 9 moves closer to the bottom surface side of the container C by the attraction force to the magnetic body 8 and comes into close contact with the magnetic body 8. In the container C, an engagement recess 8b into which the electromagnet 9 adsorbed to the magnetic body 8 moves toward the bottom surface side and enters the container C
Is provided, when the container C is displaced toward the article entrance 1a with respect to the electromagnet 9 attracted to the magnetic body 8, the engagement with the electromagnet 9 causes the container C to move toward the article entrance 1a. An engaging portion for restricting horizontal movement is provided. Other configurations are the same as those of the first embodiment.

[Other Embodiments] The article holder may be a pallet or a tray that holds and holds articles. 2. The article holder may be configured to hold the article integrally fixed to the article holder. 3. An article storage facility may be configured such that an operator holds articles together with their article holders and puts them in and out of the storage section. 4. The article storage facility may be configured such that an operator operates a transfer means such as a fork device to put articles into and out of the storage section together with articles. 5. An article storage facility provided with a stacker crane that moves on the front side of the storage shelf while raising and lowering a transfer means such as a fork device may be used. 6. The storage section may be partitioned in a box shape in which an article entrance is opened in a horizontal direction. 7. In the storage shelf, a plurality of storage units may be arranged only in the vertical direction or only in the horizontal direction. 8. The magnetic body may be provided on the side surface or the top surface of the article holder. 9. Electromagnetic adsorption means for adsorbing to a magnetic material is not necessarily limited to a device provided so as to adsorb the magnetic material in close contact with the magnetic material. It may be one that can generate an adsorbing force that can restrict the movement of the body to the article entrance side.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of an article storage facility.

FIG. 2 is a longitudinal side view of an article storage facility.

FIG. 3 is a vertical side view of a worktable.

FIG. 4 is a longitudinal sectional side view of a storage unit.

FIG. 5 is a plan view of a storage unit.

FIG. 6 is a schematic front view of a lifting platform.

FIG. 7 is a partial cross-sectional front view of the article transfer device and the elevator.

FIG. 8 is a partial cross-sectional side view of the article transfer device and the elevator.

FIG. 9 is a sectional view of a main part showing a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Storage part 1a Article insertion / removal port 8 Magnetic body 8a Sucked surface 8b Engaging part 9 Suction means (suction member) 9a Switching means 9b Suction surface A, B Storage shelf C Article holder F Control means H Movement control means J Vibration detection means

Claims (5)

[Claims] A storage shelf provided with a plurality of storage sections for storing the articles held by the article holding body together with the article holding bodies, wherein the storage section has an article access opening opened in a horizontal direction. In an article storage facility partitioned in a state, a movement regulating unit that regulates movement of an article holder stored in the storage section toward the article inlet / outlet side is provided on the article holder side. A magnetic body, an electromagnetic suction unit provided on the storage unit side and suctioning to the magnetic body of the article holder stored in the storage unit, and setting the suction unit to a suction state and a suction release state. An article storage facility comprising switching means for switching. 2. The article storage facility according to claim 1, wherein the area of the attracted surface of the magnetic body is set to be larger than the area of the attracting surface of the attracting means. 3. The article holding member is provided so as to move toward the outer surface side of the article holder by an attraction force to the magnetic material, and the article holding member has an attraction member facing the outer surface side. The article storage facility according to claim 1, further comprising an engaging portion that is engaged with the suction member that has moved closer to regulate the horizontal movement of the article holder toward the article entrance. 4. The article holder according to claim 1, wherein said article holder is resin-molded by inserting said magnetic body.
Article storage equipment according to the item. 5. A vibration detecting means for detecting a vibration state of the storage portion, and a control means for switching the suction means to the suction state when the vibration detection means detects a preset vibration state. The article storage facility according to any one of claims 1 to 4, wherein: