JPH08319004A - Chemical vessel replacing device - Google Patents

Abstract

PURPOSE: To provide a device whereby a waiting time of a worker is reduced by mechanizing work of taking out or storing a chemical vessel stored in a prescribed storage rack, in the case of metering a chemical of multiple kinds with a small frequency of use. CONSTITUTION: A conveying carriage 7, mounting a plurality of used chemical conveyers 5 piled in upper/lower two steps and a plurality of use expected chemical conveyers 4 through a lift device 6, is made to run between a stockyard 1 of storing a chemical vessel 8 with an address assigned and a metering base conveyer 3 adjacent to a metering base 9. Further a liftable lift conveyer 11 is provided in the metering base 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mixes various kinds of chemicals in accordance with the characteristics (color, shape, physical properties, etc.) required for a product in, for example, a rubber material kneading process or a vinyl chloride resin kneading process. Used when In recent years, in particular, the properties required for the products have diversified, and the kinds of compounded chemicals have been increasing. Chemicals that are frequently used are stored in chemical containers near the weighing table, while chemicals that are not frequently used are stored in a stock yard (where a large number of storage shelves are stored) away from the weighing table. . According to the present invention, when measuring a chemical which is rarely used, after taking out a chemical container stored in a predetermined storage rack, transporting it to the vicinity of a weighing stand and placing it on a weighing stand conveyor, after weighing a predetermined medicine The present invention relates to a device for storing the chemical container in the original storage shelf.

[0002]

2. Description of the Related Art For example, when processing a soft vinyl chloride resin into a sheet, there are prepared hundreds of kinds of coloring agents, stabilizers, etc. (often in the form of flakes or powders, hereinafter referred to as chemicals, etc.). ) Select several kinds of chemicals and mix them. When measuring these, the following three methods have been conventionally used (see FIG. 4).

(A) In FIG. 4 (a), an operator 20 'circulates along with a weighing platform 9' (mounted on a trolley) in a stockyard 1'in which chemicals and the like are stored, and a predetermined composition is obtained. A method of measuring the necessary chemicals (A, E, J, etc.) stored in the storage shelf 2 ′ whose lamp 33 is lit according to the table will be described.

(B) FIG. 4 (b) shows chemicals (A, B, C).
Etc.) are connected in advance by the chain conveyor 31.
2, the chain conveyor 31 is swung according to the progress of the weighing work, and the bucket 3 containing a predetermined chemical or the like is stored.
A method of bringing 2 into close proximity to the weighing platform 10 'will be described.

(C) In FIG. 4 (c), chemicals and the like are stored in a predetermined storage shelf 2'of the stockyard 1 ', and the chemicals and the like designated based on the composition table are measured by the traveling lifter 34 on the weighing platform 1'.
A method of transferring each type to the vicinity of 0'is shown.

[0006]

However, the conventional method as described above has the following disadvantages.

In the method described in the prior art (a), a large place where a large number of chemicals prepared in advance are stored side by side,
Since the worker measures the predetermined medicine and the like while moving, much work time is wasted when the worker moves.

In the method described in the prior art (b), since a large number of chemicals and the like are stored in advance in a predetermined bucket, a kind of chemicals and the like are weighed and then the chain conveyor is rotated to It takes a long time until the next predetermined medicine reaches the front of the worker, which is the same as in the case of (a), and as a result, the hand waiting time of the worker cannot be reduced.

Also in the method described in the prior art (c), it takes a long time for the traveling lifter to travel, and a special device is required for exchanging chemicals, etc., so that the waiting time for the operator's hand is not reduced. In addition to being small, there is a problem that equipment costs increase.

The present invention has been made in view of the above points, and an object of the present invention is to provide a chemical container replacement method and apparatus in which the waiting time for the operator is greatly reduced and the facility cost is low.

[0011]

In order to achieve the above-mentioned object, the chemical container replacement device of the present invention comprises: a) means for accommodating and delivering the chemical container, which is provided in the stockyard by designating an address. A storage rack; b) a carrier truck equipped with a lifting device that runs on a traveling rail installed between the stockyard and the weighing platform in parallel with each other; and c) above the lifting device. A belt conveyor that is provided in, and that travels in a direction orthogonal to the traveling rail with each independent drive device, and includes a used chemical conveyor and a planned chemical conveyor that are paired,
d) Traveling in a direction perpendicular to the traveling rail provided near the weighing platform, one end of the pulley is supported at a predetermined height so as to be rotatable, and the other end of the pulley is moved up and down. And a weighing platform conveyor that is operably mounted and that is driven in conjunction with the used chemical conveyor or the planned chemical conveyor.

[0012] As described in claim 2, e) means for accommodating and sending out the chemical container, and an electrically connected with a used chemical conveyor or a planned chemical conveyor (referred to as chemical conveyor) on the floor surface of each storage rack. Alternatively, it is preferable to provide a loading / unloading conveyor that is mechanically linked.

As described in claim 3, it is preferable that (f) the measuring table is provided on the upper surface of the weighing table, and the elevating and lowering conveyor for carrying the weighed medicine is provided below the measuring machine.

[0014]

According to the chemical container replacing device of the present invention having the above-described structure, a) it has a storage shelf having means for storing and sending out chemical containers, which is provided in the stockyard by designating the address, and the address is designated. Since the location of the storage shelf where the chemicals etc. specified in the recipe etc. are stored can be grasped by the address, it is the place where the specified chemical container is replaced by designating the address on the transport carriage described later. Can be instructed.
Since the storage shelf is equipped with a means for storing and sending out chemical containers, the work to send out the chemical containers to be used to the scheduled use conveyor and to store the used chemical containers from the used chemical conveyor. To facilitate.

B) Between the stockyard and the weighing platform, by means of a carrier truck equipped with an elevating device that travels on traveling rails installed in parallel with each other, parallel to the storage rack and the weighing platform conveyor. It is possible to move close to each other, and the elevating device mounted on the carrier makes it possible to elevate and lower the chemical conveyors and the like mounted on it in accordance with the height of the storage rack.

C) The chemical conveyor and the like are belt conveyors which are provided with independent driving devices and travel in a direction orthogonal to the travel rail. Since each is equipped with an independent drive device, it is possible to individually receive or send out each chemical container to be replaced. Further, since the chemical conveyor and the like are provided so as to travel in the direction perpendicular to the traveling rail, the chemical containers can be exchanged by directly connecting to the storage rack parallel to the traveling rail or the weighing platform conveyor described later. Since the chemical conveyors are provided as a set, the used chemical containers and the planned chemical containers can be transported by one round trip, and these chemical containers can be continuously exchanged at the position of the storage rack or weighing platform conveyor. can do. In other words, when the carrier is moved to the stock yard and the chemical container to be used is taken out, the lifting device moves the upper surface of the chemical conveyor to be used close to the predetermined storage rack position, and the used chemical container is stored. When storing on a shelf, a used medicine conveyor on which a used medicine container is placed is brought close to a predetermined storage shelf by an elevating device, and a drive device is operated to pull or store the medicine container. d) The weighing platform conveyor is located in the vicinity of the weighing platform and supports the pulley at one end so that it can swivel at a predetermined height with the conveying direction directed perpendicular to the traveling rail, and the pulleys at the other ends are supported. It has a weighing platform conveyor that can move up and down. Since it is located near the weighing platform, the weighing platform conveyor can be shortened.
Since it is attached so that the conveying direction is orthogonal to the traveling rail, it can be driven in conjunction with the chemical conveyor or the like which is orthogonal to the traveling rail. The pulley at one end of the weighing platform conveyor is almost at the height of the weighing platform and is supported by the lifting device so that the chemical conveyor of the transport vehicle can be raised and lowered. Can be easily picked up and sent out. Since the pulleys at the other end of the weighing platform conveyor can be moved up and down, tilting the end of the weighing platform conveyor close to the weighing platform also tilts the drug container placed on it. As a result, the upper open end of the medicine container is tilted toward the worker side, and it becomes easier for the worker to take out and measure the medicine and the like.
Since this weighing platform conveyor is electrically or mechanically driven in conjunction with the above-mentioned chemical conveyors, etc., when exchanging chemical containers, these conveyors etc. are simultaneously driven to facilitate the chemical containers placed on them. Can be picked up and handed over.

The chemical container replacement device according to claim 2 is
As a means for accommodating and sending out the chemical containers in the storage shelves, a loading / unloading conveyor that is electrically or mechanically interlocked with a chemical conveyor or the like is provided on the floor surface of each storage shelf. As the loading / unloading conveyor, a roller conveyor, a belt conveyor, etc., which are connected by a belt, are used.
The drive force of the drug conveyor or the like is mechanically used (for example, via a gear) to rotate, or an independent drive device (motor) is provided to electrically synchronize the drug conveyor or the like to drive the drug. Make it easy to move the container in and out.

The chemical container replacement device according to claim 3 is
A weighing machine is provided on the upper surface, and a weighing platform is provided below the weighing machine, which is provided with an elevating and lowering conveyor that conveys a measured chemical. Accordingly, in a series of measuring operations for chemicals and the like, it is possible to reduce a wasteful time when an operator measures a chemical or the like from a chemical container placed on the weighing platform conveyor and then sends it to the next process. That is, during the weighing operation, it is sufficient that the elevating conveyor is moved to a position close to the upper part of the weighing table, and the worker supplies the weighed chemicals or the like onto the nearest elevating conveyor. After finishing a set of weighing,
It is possible to lower the elevating conveyor and pass below the weighing table to transfer it to the packaging process (next process). This is because when the elevating conveyor is on the upper side, the weighed chemicals and the like placed on the elevating conveyor hit the frame or the like of the weighing table and the belt conveyor cannot be driven.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the chemical container replacement device of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the entire apparatus according to this embodiment. FIG. 2 is a plan view showing the positional relationship among the stockyard 1, the carriage 7 and the weighing platform 9.

As shown in these figures, the carriage 7 is
It travels between the stockyard 1 and the weighing platform conveyor 3 according to the traveling rail 15. FIG. 3 shows a state in which the carriage 7 is at the position shown in FIG.
The state where the medicine container 8 shown by the imaginary line in the direction of the arrow X is moved to the position of the medicine container 8 shown by the solid line is shown.

The chemical container replacement device shown in FIG. 1 includes a stock yard 1 having a plurality of storage shelves 2, a planned chemical conveyor 4 and a used chemical conveyor 5, and a lifting device 6 for the stock yard 1.
The carriage 7 and the weighing platform conveyor 3 mounted on the
Further, a weighing platform 9 including a weighing machine 10 and a lifting conveyor 11 is provided.

As shown in FIG. 3, the stockyard 1 is usually stacked in several stages in consideration of the heights of the chemical conveyors 4 and 5 and the size of the chemical container when the lifting device 6 is at the highest position. A storage shelf 2 (see FIG. 2) capable of storing dozens or hundreds of chemical containers 8 is provided side by side in the horizontal direction. As shown in FIG. 1, on the floor surface of each storage rack 2, there is provided a loading / unloading conveyor, for example, a roller conveyor 14 as means for accommodating and delivering the medicine container 8 to facilitate the operation of accommodating and delivering the medicine container 8. In addition, this roller conveyor 14
By interlocking with a round belt, or by replacing it with a belt conveyor, the chemical conveyors 4, 5 (each driven by an independent drive motor) are transmitted in close proximity by transmission gears, etc. (Not shown),
It is possible to drive the loading / unloading conveyor in synchronization with the chemical conveyor. This makes it possible to easily take in and out the medicine container. Of course, each can be driven by an independent motor or the like while being electrically linked.

The carrier vehicle 7 travels on a traveling rail 15 provided in parallel with the stockyard 1 and the weighing platform 9. Depending on the positional relationship between the stockyard 1 and the weighing platform 9, the traveling rail 15 may be linear as shown in FIG. 2 or may be curved midway.
The weighing platform 9 may be provided on one side of the traveling rail 15. A to-be-used medicine conveyor 4 and a used medicine conveyor 5 which are stacked vertically in two stages are mounted on a carriage 16 via an elevating device 6 (FIG. 1). The chemical conveyor 4 to be used is provided with a plurality of (four in the present embodiment) belt conveyors horizontally as a direction (the direction perpendicular to the stockyard 1 and the direction of the arrow Y) orthogonal to the traveling rail 15 in the conveying direction. . Compared to roller conveyors etc., belt conveyors 7
The chemical container 8 can be stably supported when traveling. Below that, used chemical conveyors 5 are provided at intervals considering the height of the chemical containers 8 in the same number and in the same direction as the chemical conveyors 4 to be used. These chemical conveyors 4 and 5 are rotated in the direction of arrow Y by driving means (not shown) (for example, a built-in motor). In this embodiment, the planned chemical conveyor 4 is at the upper stage and the used chemical conveyor 5 is at the lower stage, but this can be reversed, and when the work space is wide in the left and right, The chemical conveyors 4 and 5 can be arranged horizontally (horizontally) (the height of the storage rack can be reduced).

The chemical conveyors 4 and 5 are mounted on a carriage 16 via an elevating device 6. Lifting device 6
As shown in FIG. 3, the X-shaped (pantograph-shaped) link mechanism moves the chemical conveyors 4 and 5 up and down (in the direction of arrow B). The lifting device is not limited to the link mechanism, and a screw screw, a plunger, or the like can be used. The carrier vehicle 7 carries a chemical container 8 and travels between the stockyard 1 and the weighing platform 9 according to the traveling rail 15.

The weighing platform conveyor 3 shown in FIG. 1 uses a belt conveyor, and the frame 17 supported on the weighing platform 9 supports the weighing platform side supported by the pulley 13 and the cam 12 on the side close to the transport vehicle 7. It is held by the pulley 18. The pulley 18 on the weighing platform side of the weighing platform conveyor 3 is
The pulley 18 is supported by a cam 12 which turns around a fulcrum 19, and the pulley 18 is moved by the arrow D by turning the cam 12.
Move in the direction of (up and down). When the pulley 18 is moved downward, the weighing platform conveyor 3 tilts with the weighing platform 9 side lowered. As a result, the upper opening (not shown) of the medicine container is widely opened to the operator on the opposite side of the weighing platform conveyor 3 of the weighing platform 9 to facilitate the weighing work.
In addition, the cam 12 is attached to the position of the pulley 13 and the cam 1
Even if the turning of 2 is reversed, that is, the end (pulley 13) of the weighing platform conveyor 3 on the transport vehicle side is moved up and down, the weighing platform conveyor 3 can be similarly inclined. Each weighing platform conveyor 3 is provided with a driving device (not shown), and when the chemical conveyors 4 and 5 come close to each other, they are driven in conjunction with the chemical conveyors 4 and 5 to be used, and the chemical containers to be used. And take out the used chemical container. The weighing platform conveyor 3 can be used as a roller conveyor by providing a stopper at the end on the weighing platform side.

The weighing table 9 shown in FIG. 1 is provided with a weighing machine 10 at a height at which the weighing work by the operator is the easiest.
The weighing table near 0 is provided with a weighed medicine inlet 21. Below the weighing platform 9, an elevating conveyor 11 supported by a supporting rod 23 and capable of elevating in the vertical direction (arrow E).
Is provided. At the time of weighing work, this lifting conveyor 11
, And its upper surface is close to the lower side of the above-mentioned weighed chemical injection port 21. Due to the chemical weighing work, the weighed chemicals are supplied from the weighed chemicals input port 21 to the elevator conveyor 11
Place on. FIG. 1 shows a state in which the elevating conveyor 11 is lowered downward after the measurement of chemicals and the like is completed. The elevating conveyor 11 is driven in the direction of arrow F to transfer the measured chemicals 22 to the packaging step (next step). The reason why the elevating conveyor 11 is driven after being lowered is to prevent the weighed chemicals and the like placed on the upper surface of the elevating conveyor 11 from touching the weighing table 9.

The procedure for replacing the chemical container 8 by the apparatus of the present invention is as follows (see FIG. 1).

(A) A large number of chemical containers 8 are freely stored in and taken out from a plurality of storage shelves 2 whose addresses are designated in the stockyard 1.

(B) The carrier 6 is brought close to the designated storage rack 2 and the lifting / lowering device 6 is used to move the used chemical conveyor 5
Is moved close to the end of the roller conveyor 14 of the storage shelf 2 (moved in the direction of arrow B or C). The used medicine conveyor 5 is rotated in the direction of the arrow Y to store the used medicine container 8 indicated by an imaginary line in the storage rack 2. Continuing, as shown in FIG. 3, in order to pick up the planned use chemicals, the planned use chemicals conveyor 4 is brought close to the storage shelf 2 for the planned use chemicals, and the planned use chemicals conveyor 4 is rotated in the direction of the arrow X. The chemical container 8 located at the position indicated by the line is taken out. The height of the chemical conveyors 4 and 5 is adjusted by the lifting device 6.

(C) The carrier cart 7 carrying the chemical container to be used on the chemical conveyor 4 to be used is moved from the stockyard 1 to the position of the conveyor 3 on the weighing table along the traveling rail 15. By operating the lifting device 6 of the carrier vehicle 7,
The upper surface of the empty used chemical conveyor 5 is aligned with the upper surface of the weighing platform conveyor 3. The weighing table conveyor 3 has a used medicine container (not shown), and the used medicine conveyor 5 is rotated in the direction of the arrow Y to accommodate the medicine container. The elevating device 6 is lowered so that the upper surface of the chemical conveyor 4 to be used coincides with the upper surface height of the weighing platform conveyor 3 (not shown). The planned chemical conveyor 4 is rotated in the direction opposite to the arrow Y, and the chemical container (not shown) placed on it is moved to the weighing platform conveyor 3
To transfer on. The weighing platform conveyor 3 is driven to move the medicine container to be used placed on the weighing platform conveyor 3 to the end on the weighing instrument side, and then the cam 12 is swiveled to stop with the end moving downward. In this state, the medicine container (not shown) has an upper opening inclined toward the weighing table 9, so that the operator 2
0 (refer to FIG. 2) makes it easy to take out the chemicals etc.
You can measure. At the end of weighing, rotate this cam in reverse,
The weighing platform conveyor 3 is set in a horizontal or reversely inclined state.

[0031]

As is apparent from the above description,
The chemical container replacement device of the present invention has the following excellent effects.

(1) In the stockyard, the prescribed chemical containers are stored in storage shelves with designated addresses. Therefore, by instructing the carrier based on the composition table, etc., the chemical containers to be used will be automatically ( Can be exchanged and transported without the need for an operator.

(2) Since a plurality of chemical conveyors and the like can be incorporated as a set, a plurality of chemical containers to be used can be simultaneously conveyed.

(3) As a result of the above (1) and (2), while the worker is performing the weighing work at the predetermined position of the weighing platform, the next necessary chemicals etc. reach the worker's hand. Therefore, the waiting time of the operator can be greatly reduced.

(4) This device has a simple structure and can reduce equipment investment.

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire chemical container replacement device according to an embodiment of the present invention.

FIG. 2 is a plan view showing a positional relationship among a stock yard, a carriage, and a weighing platform conveyor of the apparatus shown in FIG.

FIG. 3 is a perspective view illustrating a replacement operation in the stock yard of the carrier truck 7 according to the present embodiment.

4 (a) to 4 (c) are perspective views for explaining a conventional device for weighing chemicals and the like and a method therefor, respectively.

[Explanation of symbols]

 1: Stock yard 2: Storage shelf 3: Weighing table conveyor 4: Scheduled chemical conveyor 5: Used chemical conveyor 6: Lifting device 7: Transport vehicle 8: Chemical container 9: Weighing table 10: Weighing machine 11: Lifting conveyor 12 : Cam 13: Pulley 15: Traveling rail

Claims (3)

[Claims] 1. A storage shelf for exchanging a plurality of chemical containers between a stock yard and a weighing platform, the storage shelf having a means for accommodating and delivering the chemical containers, the address being designated in the stock yard. And between the stockyard and the weighing platform, traveling on traveling rails installed in parallel with the stock yard and a carrier truck equipped with a lifting device, and provided on the lifting device, respectively. A belt conveyor that is equipped with an independent drive device and travels in a direction orthogonal to the traveling rail, and is a set of a used chemical conveyor and a planned chemical conveyor, and a conveyor provided near the weighing platform. Traveling in a direction perpendicular to the traveling rail, a pulley at one end of the traveling rail is supported at a predetermined height so as to be rotatable, and a pulley at the other end is attached to be movable up and down. , The ampoule replaced device characterized by comprising a weighbridge conveyor which is driven in conjunction with the spent chemicals conveyor or use schedule chemicals conveyor. 2. A storage / delivery conveyor electrically or mechanically interlocked with the used chemical conveyor or the planned chemical conveyor on the floor surface of each storage rack as means for storing and sending the chemical container. The chemical container replacement device according to claim 1. 3. The medicine container replacement device according to claim 1, wherein a measuring instrument is provided on the upper surface of the weighing table, and an elevating and lowering conveyor that conveys the already-measured medicine is provided below the measuring instrument.