JPH0529664B2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to an apparatus for producing paint.

(Prior Art) In conventional paint manufacturing factories, a method is widely adopted in which paint products are obtained by charging raw materials such as pigments, resins, and solvents into fixed tanks and stirring and mixing them using a dissolver. Since most of the raw materials mentioned above are liquid, they are supplied from the raw material tank to each fixed tank via piping.

(Problem to be solved by the invention) Recently, however, with the diversification of properties required for paints, the number of types of resins, liquid raw materials, semi-finished products, etc. used as raw materials has rapidly increased. In order to do this, it is necessary to add multiple lines of raw material supply piping to each fixed tank, but the piping and instrumentation work is complicated and there is a limit to the number of pipes per fixed tank due to the piping space. There is. Therefore, it becomes necessary to increase the number of fixed tanks installed, and this is uneconomical, especially in the case of a paint production factory that produces a wide variety of products in small quantities, as it requires a large floor space to install a large number of tanks.

This invention solves the above-mentioned conventional problems, and aims to provide a paint manufacturing apparatus that can manufacture a wide variety of paints in a narrow floor space.

(Means for Solving the Problems) In order to achieve the above object, the paint manufacturing apparatus of the first invention includes a plurality of portable tanks, a transport path for transporting the tanks, and a transport path for transporting the tanks. The tank of the transfer device includes a transfer device that transfers along a transfer path, a transfer device that stops the tank at a plurality of feeding positions, and a predetermined number of liquid raw material supply ports arranged above the feeding positions. a raw material feeding lie in which a receiving part and a tank sending part are disposed along the conveyance path; a semifinished product preparation station provided along the conveyance path and feeding semi-finished products from the pigment dispersion device into the tank; A stirring station equipped with a stirring device for stirring the contents in the tank and installed along the conveyance path; and a filling station equipped with a filling machine for filling cans with the paint product in the tank and installed along the conveyance line. a cleaning station provided along the conveyance line and equipped with a cleaning device for cleaning the inside of the empty tank from which the paint product has been discharged; and a storage station provided along the conveyance line for storing the tank after cleaning. The tank on the storage station is transferred to the storage station via the raw material feeding line or the dispersed raw material feeding station, the raw material feeding line, the stirring station, the filling station, the washing station, and then to the storage station. It is characterized by being circularly conveyed to. Further, the paint manufacturing apparatus of the second invention includes a plurality of portable tanks, a conveyance path for conveying the tanks, a conveyance device that conveys the tanks along the conveyance path, and a plurality of transportable tanks. A transfer device that is stopped at a feeding position and a predetermined number of liquid raw material supply ports arranged above the feeding position are provided, and a tank receiving section and a tank sending section of the transfer device are arranged along the transport path. The transport line is equipped with a raw material preparation line, a stirring station provided along the transport path with a stirring device for stirring the contents in the tank, and a filling machine for filling cans with the paint product in the tank. a cleaning station provided along the conveyance line and equipped with a cleaning device for cleaning the inside of the empty tank from which the paint product has been discharged;
A storage station is provided along the transport line to store the tank after washing, and the tank on the storage station is transferred to the raw material preparation line, the stirring station, the filling station, and the washing by the transport device. It is characterized in that it is circulated and conveyed to the storage station via the station.

(Function) In the paint manufacturing apparatus of the present invention, the transport device transports the portable tank from the storage station to the raw material preparation line or semi-finished product preparation station and raw material preparation line, and the raw materials and, if necessary, the semi-finished products are transferred to the tank. supplied within. Next, the tank is circulated and transported by a conveying device to a storage station via a stirring station, a filling station, and a washing station, and the paint product obtained by stirring and mixing by the stirring device in the stirring station is canned by a filling machine at a filling station. After the empty tank is cleaned by the cleaning device of the cleaning station, it is returned to the storage station in preparation for the next paint production cycle. When it is necessary to supply in a tank a kneaded semi-finished product made by adding a resin, a solvent, etc. to pigment and dispersing it using a dispersing machine such as a sand mill or a ball mill, in the paint manufacturing apparatus of the first invention, the semi-finished product is It is supplied into a tank at a semi-finished product charging station or a raw material charging line, and in the paint manufacturing apparatus of the second invention, it is supplied into a tank at a raw material charging line.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

FIG. 1 shows a plan view of the entire apparatus, and numeral 1 denotes a conveyance path provided on the floor, on which a conveyance vehicle 2 runs.
The conveyance vehicle 2 is a battery-driven unmanned vehicle that travels while being guided by a guide ruble embedded in the conveyance path 1, and a tank 4 is placed on a moving platform 3 that moves in and out in a direction perpendicular to the traveling direction. Raw material preparation line 3 installed along the transportation and conveyance path 1
0 and each station (described later). As shown in FIG. 2, the tank 4 has a support frame 6 fixed to a square frame-shaped bottom frame 5.
The tank body 7 is fixed to the tank body 7. Reference numeral 8 denotes an on-off valve consisting of a globe valve connected to an outlet provided at the bottom of the tank body 7. Reference numeral 10 designates an opening/closing mechanism for the on-off valve 8, in which pins 12 are protruded and fixed in a cross-shape at both ends of a horizontally extending rotating shaft 11 that is rotatably supported by the supporting frame 6. A bevel gear 13 fixed nearby is meshed with a bevel gear 14 fixed to the valve body drive shaft of the on-off valve 8. In addition, 15 is a lid that can be attached or detached to the tank body 7, and a hole 16 in the center has two lids.
A small lid 17 with a split small hole is removably covered. Reference numeral 18 designates a hinge-type lid of an input port 19 for inputting raw materials after the lid 15 is attached.

Further, in FIG. 1, 20 is a storage station, and a support base 21 is provided with free rollers 21a on both sides (hereinafter, other support bases have a similar structure).
A plurality of these are fixedly installed along the conveyance path 1. 30
2 is a raw material preparation line installed in parallel, and a chain conveyor 33 is installed between a tank receiving section 31 and a tank sending section 32 provided along the conveyance path 1 consisting of a lifting platform equipped with free rollers. There are multiple locations on the top (6 in this example).
One or more (eight in this embodiment) liquid raw material supply ports 34 are provided downwardly above each charging position. The liquid raw material supply port 34 is connected via piping to a liquid raw material supply source for various solvents, resins, etc., via an air cylinder-driven two-stage closing type on-off valve 35 and a pulse generating type flow rate type 36. Reference numeral 40 denotes a lid adhering device that includes a stacker 42 for storing the lids 15 in a stacked manner on a lifting table 41, and a rail 43 extending from above the installation position of the stacker 42 to above the tank delivery section 32 of the raw material preparation line 30. Freely movable lid transfer machine 4
It consists of 4. The lid conveyor 44 has a lifting platform 46 that is driven up and down by an air cylinder attached to a cart 45 that runs on rails 43, and claw pieces 47 that engage and disengage from the edge of the lid 15 are pivotally attached to both ends of the lifting platform 46. do,
The structure is such that both claw pieces 47 are rotated by an air cylinder. Reference numeral 48 denotes a weighing device that elastically supports the support base 49 and measures weight using a load cell.

On the other hand, 50 is a first semi-finished product preparation station, which consists of a sand mill 52 installed near a support 51 provided along the conveyance path 1, and 55 is a second semi-finished product preparation station, which is the same support as above. A ball mill 57 is installed near the ball mill 56. 60 again
is a stirring station, in which a stirring device 64 equipped with a blade 63 rotatably driven by a motor 62 is guided above a plurality of supporting stands 61 provided along the conveyance path 1 to a base frame 65 so as to be movable up and down; It is designed to be driven up and down by an air cylinder 66. A filling station 70 includes a known filling machine 72 installed near a plurality of support stands 71 provided along the conveyance path 1. The supply of empty cans to the filling machine 72 and the removal of filled paint cans are carried out by a conveyor device (not shown). Reference numeral 75 is a stacker for collecting tank lids 15, which is the same as the stacker 42 for supplying lids in the previous stage. Reference numeral 80 denotes a washing station, in which chain conveyors 83, 84, and 85 are arranged in a row between a tank receiving section 81 consisting of a lifting platform and a tank sending section 82. Two washing devices 86 are provided for final washing. 87 is an opening/closing operating device for the opening/closing valve 8 of the tank 4. The cleaning device 86 has a cover 90 that covers the opening of the tank 4 fixed to an elevating frame 89 that can be raised and lowered along a base frame 88, and a shaft 92 equipped with a brush 91 that can be freely rotated around a vertical axis. Attachment: The cover 90 is provided with a spout 93 for spouting a cleaning solvent, and a saucer 94 and a tank 95 for collecting cleaning waste liquid are fixedly provided below. In the washing device 86 for rough washing, as shown in FIG. 6, the waste liquid in the tank 95 is circulated and supplied to the spout 93 by the pump 96 while the degree of contamination is low, and is discharged when the degree of contamination becomes high. The washing waste liquid of the washing device 86 for final washing is replenished. Further, in the cleaning device 86 for final cleaning, a new solvent is always used. Further, the opening/closing operation device 87 has a shaft 100 rotatably supported by a cart 90 which is horizontally movably supported by a machine frame 97, and a disk fixed to the tip of the shaft 100. 2 pins 101
The pin 12 of the opening/closing mechanism 10 of the tank 4 can be engaged and disengaged.

To manufacture paint using the paint manufacturing apparatus with the above configuration, first place the lid 1 on the storage station 20.
The empty tank 4 with no paint 5 is picked up and transported by the transport vehicle 2, and placed on the support stand of the first semi-finished product preparation station 50 or the second semi-finished product preparation station 55, depending on the composition of the paint, and then processed by a sand rim 52 or a ball mill 57. The manufactured semi-finished product is supplied into the tank 4 through a hose or pipe. Next, the tank is taken up by the carrier 2 and weighed by the weighing device 48.
After being transferred to the top and having its weight measured, it is transferred onto the tank receiving section 31 of the raw material preparation line 30. Depending on the composition of the paint, the empty tank 4 on the storage station 20 may be transferred directly to this raw material preparation line 3 by the transport vehicle 2.
Transport to 0. In the raw material preparation line 30,
The tank 4 is transported by a chain conveyor 33 and stops for a short period of time at six charging positions, and during this stop, the raw material supply port 3 selected according to the composition of the paint is opened.
4, various solvents and resins are supplied in predetermined amounts into the tank 4. When the tank 4 reaches the tank delivery section 32, the lid transfer machine 44 of the lid application device 40 grasps and transfers the topmost lid 15 in the stacker 42, and places it on the tank 4. Thereafter, the transport vehicle 2 takes over the tank 4 and moves it to the supporting base 6 of the stirring station 60 at a predetermined position.
Place it on top of 1. A worker on the second floor F near the upper end of the tank 4 removes the small lid 17 and manually inputs additional raw materials such as powder into the tank 4 from the inlet 19 as necessary, and then inserts the stirring device 64 into the tank 4. is lowered to stir and mix the raw materials in the tank. A small amount of the obtained paint product is sampled and inspected, additional raw materials are charged as necessary, and after stirring, the stirring device 64
The tank 4 with the small lid 17 is placed on the transport vehicle 2.
and transported to the filling station 70. At the filling station 70, a known pump unit with a filter (not shown) is connected to the outlet of the on-off valve 8 of the tank 4, and the paint product in the tank 4 is sent to a filling machine 72 for canning. When the tank 4 is empty, the lid 18 is hoisted (the lid application device 4
0) and stacked in the stacker 75, the empty tank 4 is transferred to the cleaning station 80 by the transport vehicle 2.
Transport to. At the washing station 80,
The tank 4 placed on the tank receiving part 81 is transferred to the lower part of the washing device 86 for rough washing by the chain conveyor 83, and the lifting frame 89 is lowered to remove the cover 9.
0 is placed on the tank body 7, and the brush 91 is inserted into the tank body 7. Next, the brush 91 is rotated while spouting the solvent from the spout 93, and after a predetermined time by a timer, the opening/closing operation device 87 is activated to rotate the rotating shaft 11 of the opening/closing mechanism 10, and the opening/closing valve 8 is opened to remove the dirt. Solvent is discharged from tank 4 and falls into tank 95. Then, the brush 91 stops, and the on-off valve 8
After the cover 90 is closed, the lifting frame 89 rises and the cover 90
And the brush 91 is retracted upward. After rough washing, the tank 4 is transferred by chain conveyors 84 and 85 to the lower part of the washing device 86 for finishing washing, and is internally washed in the same manner as described above. hako tank 4
is picked up and transported to a predetermined storage station 20, completing one cycle.

Although not shown in FIG. 1, there are a plurality of tanks 4 (20 in this embodiment) on each station and raw material preparation line, and each tank 4 has two
The paint is transported in an appropriate order from the transport vehicle 2 of the stand, and the paint is manufactured in each tank 4 in an independent process. The operation of the transport vehicle 2, the operation of equipment at each station and raw material preparation line, and the mixing of input raw materials are all commanded using a computer.
By controlling this, most of the production system can be automated, and a wide variety of paints with stable quality can be produced extremely efficiently.

In the above embodiment, semi-finished products are supplied into the tank 4 by the first semi-finished product charging station 50 and the second semi-finished product charging station 55, but depending on the type of paint to be produced, etc. The installation may be omitted, or some semi-finished products may be transferred to an appropriate raw material supply port 3 of the raw material preparation line 30.
4 may be supplied into the tank 4.
Furthermore, it is also possible to supply all semi-finished products, like solvents and resins, into the tank 4 through the raw material feeding line 30, thereby omitting the installation of a semi-finished product feeding station. In this case, ball mill 57 or sand mill 52
Semi-finished products from dispersion equipment such as
0, or may be supplied to the raw material preparation line 30 through an intermediate storage tank.

In addition, in the above embodiment, the discharge on-off valve 8 is provided at the bottom of the tank body 7, which is particularly convenient when cleaning the tank, and also has the advantage that the paint is almost completely discharged during filling. However, the paint and cleaning liquid may be discharged from the upward opening of the tank body 7 using a hose or the like.
In addition to the transport vehicle 2 described above, monorails and various conveyors can also be used as transport means for the tank 4. Furthermore, washing station 80
In addition to the above-mentioned two-stage washing of rough washing and final washing, one or more washing devices 86 may be provided. Further, the specific configuration of the cleaning device 86 and other devices constituting the entire system is not limited to the above embodiment.

(Effects of the Invention) As explained above, according to the present invention, paint is manufactured in a portable tank while being transported, and the used tank is washed and recycled for use in the next paint manufacturing process. As a result, the same tank can be used quickly and smoothly for manufacturing different types of paints, and since the raw material supply piping only needs to be concentrated in the raw material preparation line, it is easy to use piping to a large number of fixed tanks. Compared to this, the number of piping and piping spouts is small, and many types of paint can be efficiently produced in a small floor space using a small number of tanks.
A paint manufacturing apparatus is provided that is extremely suitable for producing a wide variety of paints in small quantities.

In addition, the piping for supplying liquid raw materials can be distributed over multiple charging positions that make up the raw material preparation line, making piping and instrumentation work easy. Raw materials can be charged quickly and efficiently, and by combining many types of liquid raw materials, the demand for many types of paint can be easily met. Furthermore, in the first invention, since a station for preparing semi-finished products is provided separately, the raw material preparation line can be simplified and paints can be manufactured more efficiently using a wide variety of semi-finished products.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the equipment arrangement of a paint manufacturing apparatus showing an embodiment of the present invention, Fig. 2 is a vertical sectional view of the tank, Fig. 3 is a plan view of the tank lid, and Fig. 4 is the first
A front view taken along arrow A-A in the figure, and a front view taken along arrow B- in FIG.
B front view and FIG. 6 are also longitudinal sectional views taken along the line CC. 1... Transport path, 2... Transport vehicle, 4... Tank,
7... Tank body, 20... Storage station,
21...Support stand, 30...Raw material preparation line, 31
... Tank receiving section, 32 ... Tank sending section, 34
...Chain conveyor, 34...Raw material supply port, 5
0... First semi-finished product preparation station, 51... Support stand, 52... Sand mill, 55... Second semi-finished product preparation station, 56... Support stand, 57... Ball mill, 60... Stirring station, 61... …
Support stand, 63...blade, 64...stirring device,
66... Air cylinder, 70... Filling station, 71... Support stand, 72... Filling machine, 80...
Washing station, 86...Washing device, 89...
... Lifting frame, 90 ... Cover, 91 ... Brush, 9
2... shaft, 93... spout.

Claims (1)

[Claims] 1. A plurality of portable tanks, a transport path for transporting the tanks, a transport device that transports the tanks along the transport section, and stops the tanks at a plurality of loading positions. a raw material preparation line comprising a transfer device and a predetermined number of liquid raw material supply ports arranged above the preparation position, and a tank receiving part and a tank delivery part of the transfer device arranged along the transport path;
A semi-finished product loading station is provided along the conveyance path and supplies semi-finished products from the pigment dispersion device into the tank, and a stirring device is provided along the conveyance path to stir the contents in the tank. The above-mentioned filling station includes an agitation station, a filling machine for filling cans with the paint product in the tank, and is installed along the transport line, and a washing device for cleaning the inside of the empty tank from which the paint product has been discharged. A washing station provided along the transfer line and a storage station provided along the transfer line for storing the tank after washing are provided, and the tank on the storage station is loaded with the raw material by the transfer device. A paint manufacturing apparatus characterized in that the paint manufacturing apparatus is circularly conveyed to the storage station via a line or the semi-finished product preparation station, the raw material preparation line, the stirring station, the filling station, and the washing station. 2. A plurality of portable tanks, a transport path for transporting the tanks, a transport device that transports the tanks along the transport path, a transfer device that stops the tanks at a plurality of charging positions, and the charging device. a raw material preparation line having a predetermined number of liquid raw material supply ports arranged above the position, and a tank receiving part and a tank sending part of the transfer device arranged along the transport path;
a stirring station provided with an agitation device for stirring the content in the tank and provided along the transfer path; and a filling machine provided with a filling machine for filling cans with the paint product in the tank and provided along the transfer line. a filling station, a cleaning station provided along the conveyance line and equipped with a cleaning device for cleaning the inside of the empty tank from which the paint product has been discharged; and a storage station provided along the conveyance line for storing the tank after cleaning. The tank on the storage station is circularly transported by the transport device to the storage station via the raw material preparation line, the stirring station, the filling station, and the washing station. Characteristic paint manufacturing equipment.