JPH04292312A - Clean warehouse - Google Patents

Abstract

PURPOSE:To provide a clean warehouse which can reduce the cost of measures against dust by eliminating a stacker crane which moves to the right or left in front of a rack device, and reducing dust when compared with conventional warehouse. CONSTITUTION:The clean warehouse 1 has a ramp 13 which is installed at the center of the clean warehouse 1 in such a way that it can ascend and descend freely, an object transfer device 17 which is mounted on the ramp 13 in such a way that it can rotate horizontally and freely, and rotary shelf devices 23 which are mounted on the right and left in the clean warehouse 1 opposingly across the ramp 13. The rotary shelf devices 23 have a plural number of rotary shelves 26 which are mounted at the predetermined space in the up and down directions.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a clean warehouse.

0002

BACKGROUND OF THE INVENTION Conventionally, the following types of clean warehouses have been known. That is, it has a rack device installed in a clean warehouse that has a large number of article storage shelves vertically and horizontally, and a stacker crane that is installed in the clean warehouse in front of the rack device so as to be able to move left and right. and the stacker crane has a traveling platform, a lifting platform provided on a mast erected on the traveling platform so as to be movable up and down, and an article transfer device such as a robot hand mounted on the platform. is known.

0003

[Disadvantages of the Prior Art] The conventional clean warehouse has the following drawbacks. In other words, since the stacker crane was movable left and right in front of the rack device, in other words, the traveling truck moved left and right, it was easy to generate dust. In order to prevent scattering, special measures must be taken, which has the drawback of increasing costs.

0004

[Means for Eliminating the above-mentioned disadvantages] In order to eliminate the above-mentioned disadvantages, the present invention employs the following means. This invention provides a lift platform provided in the center of a clean warehouse so as to be able to rise and fall freely, an article transfer device mounted on the lift platform so as to be horizontally rotatable, and an article transfer device that faces each other with the lift platform in between. It has a rotating shelf device installed on the left and right sides of the
The rotating shelf device has a plurality of rotating shelves provided vertically at predetermined intervals.

[0005]

According to the present invention, articles can be stored on a rotating shelf by the following operations. When an article is placed on the article loading/unloading table, the article is held by the article transfer device. Thereafter, the lifting platform rises to the height of the rotating shelf to be stored. At the same time, the rotating shelf device is driven to rotate, so that the article placement portion of the rotating shelf where articles are to be stored is opposed to the lifting platform. Thereafter, the article is transferred and placed on the article placement section of the rotating shelf by the operation of the article transfer device. Further, by performing the reverse operation to the above, the article can be delivered to the article loading/unloading table.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below based on embodiments shown in the drawings. In this specification, the front refers to the lower side in FIG. 1, the rear refers to the upper side in the same figure, the left refers to the left side in FIG. 1, and the right refers to the right side in the same figure. The clean warehouse 1 is a closed room except for an article loading/unloading port 2 provided at the center of the front wall. A vertical filter 4 is provided at the rear of the clean warehouse 1 so as to form an air passage 3 between the rear wall and the rear wall, and a horizontal partition wall 5 is connected to the bottom wall of the clean warehouse 1 at the lower end of the filter 4. and are in contact with each other with a predetermined interval between them. A required number of openings 6 are formed in the horizontal partition wall 5, and air outlets 9 of a fan 8 are connected to these openings 6.

A cylindrical mast 12 is erected in front of the filter 4 at the center in the left-right direction of the clean warehouse 1, and a lifting platform 13 is installed on this mast 12, and a lifting platform 13 including a timing belt etc. stored in the mast 12 is installed. The device 14 allows it to be raised and lowered freely. Note that a fan 15 is provided at the bottom of the mast 12 to suck air inside the mast 12.

A hollow horizontal rotating table 16 is provided on the lifting table 13 so as to be horizontally rotatable, and a robot hand 17 is mounted on the horizontal rotating table 16.
The robot hand 17 is horizontally slidable by a known drive mechanism such as a ball screw mechanism or a belt drive mechanism housed in the robot hand 17, and the robot hand 17 is provided with a main body case 18 and a main body case 18 that can freely approach and separate from each other. It has a pair of hand arms 19. These hand arms 19 are moved toward each other or separated from each other by a drive mechanism housed within the main body case 18. It goes without saying that a robot hand or the like other than the embodiment may be used as the article transfer device.

An article loading/unloading table 21 made of a perforated plate is provided in front of the lifting table 13.
The article loading/unloading port 2 is positioned so as to face the article loading/unloading port 2 . The article loading/unloading port 2 is provided with an air curtain device (not shown).

[0010] Rotary shelf devices 23 are provided on the left and right sides of the clean warehouse 1 so as to face each other with the lifting platform 13 in between. This rotary shelf device 23 has a rotating shaft 24 rotated by a motor 25 that can freely rotate in forward and backward directions, and a large number of rotating shelves 26 provided on the rotating shaft 24 at predetermined intervals in the vertical direction.

A case 28 having a flange 29 at the upper end is housed in the rotating shelf 26. A partition plate 30 made of a perforated plate is provided at the bottom of the clean warehouse 1 so as to be located above the motor 25.

0012

[Operation of the embodiment] Next, the operation of the clean warehouse of the embodiment will be explained. First, the air flow inside the clean warehouse 1 will be explained. Air sucked through the air suction port 10 of the fan 8 is jetted out from the air jet port 9, passes through the filter 4, and is sent out to the side where the rotating shelf device 23 and the like are provided. Then, the air flows toward the bottom of the clean warehouse 1 and the air suction port 1
It is attracted to 0. The circulating air is purified while passing through the filter 4.

Next, the operation of storing the case 28 on the rotating shelf 26 will be explained. When the case 28 is placed on the article loading/unloading table 21 automatically or manually, the hand arm 19 is placed slightly below the flange 29 of the case 28.
The elevating platform 13 stops at the height at which it is positioned. Thereafter, the horizontal turning table 16 turns so that the free end of the hand arm 19 faces the case 28. After that, the robot hand 17 moves to the case 28 with the hand arm 19 separated.
The hand arm 19 is positioned outside the case 28. Thereafter, the hand arms 19 approach each other and grip the case 28. Thereafter, after the lifting table 13 rises slightly, the robot hand 17 retreats while holding the case 28 and draws the case 28 above the horizontal turning table 16. As is clear from this description, the case 28 and the horizontal turning table 16 are designed to avoid collision or interference. Thereafter, the lifting platform 13 rises to a height such that the bottom surface of the case 28 is located slightly above the top surface of the rotating shelf 26 to be stored. Meanwhile, horizontal rotation table 1
6 is horizontally rotated by 90 degrees to make the case 28 face either the left or right rotating shelf 26. Further, the rotating shaft 24 rotates to cause the article placement portion of a predetermined rotating shelf 26 to face the lifting table 13. Thereafter, the robot hand 17 protrudes toward the article placement section, and then the elevator platform 13 descends slightly to lower the case 28 onto the article placement section. After that, hand arm 1
9 are spaced apart from each other to separate the cases 28. Thereafter, the robot hand 17 retreats to the horizontal rotation table 16 side. Incidentally, the case 28 can be carried out to the article loading/unloading table 21 by an operation opposite to that described above.

[0014]

[Effects of the Invention] With the above-described configuration, the present invention achieves the following effects. A lifting platform is installed in the center of the clean warehouse so that it can be raised and lowered, an article transfer device is mounted on the lifting platform so that it can rotate horizontally, and a lifting platform is installed on the left and right sides of the clean warehouse so as to face each other with the lifting platform in between. and a rotating shelf device, the rotating shelf device comprising:
It has a plurality of rotating shelves installed at predetermined intervals in the vertical direction, and unlike conventional racks, it does not have a stacker crane that moves left and right in front of the rack device, so it is less dusty than conventional racks. By reducing the occurrence of dust, it is possible to reduce the cost of dust control measures.

[Brief explanation of drawings]

FIG. 1 is a horizontal sectional view showing an embodiment of the invention.

FIG. 2 is a sectional view taken along line II-II in FIG. 1;

FIG. 3 is a sectional view taken along line III-III in FIG. 1;

[Explanation of symbols] 1 Clean warehouse 13 Lifting platform 16 Horizontal rotating table 17 Robot hand 23 Rotary shelf device 26 Rotating shelf

Claims (1)

[Claims] 1. A clean warehouse comprising: a lifting platform provided in the center of a clean warehouse so as to be able to rise and fall freely; and an article transfer device mounted on the lifting platform so as to be horizontally rotatable; A clean warehouse comprising a rotating shelf device provided on the left and right sides of the warehouse, the rotating shelf device having a plurality of rotating shelves provided at predetermined intervals in the vertical direction.