JPH07323221A - Device for mixing and shipping powder - Google Patents

Abstract

PURPOSE:To provide a device for mixing and shipping powder in which the clogging of a line with powder by bedewing caused in the line or the growth of fungus is prevented. CONSTITUTION:There are provided plural powder tanks 11...15, plural lines 3...7 for feeding powder into the powder tanks, a mixer 16 formed by connecting it to the plural powder tanks, plural discharge device 17...21 for discharging powder into the mixer from the plural powder tanks, and discharge parts 22a, 23a for discharging and shipping the powder in the mixer to form a power mixing and shipping device. And also dehumidifiers 35...39 are connected to at least the plural lines, and dry air by the dehumidifiers is fed into the lines. In this way, as a result of air in the lines being dehumidified, bedewing does not occur, the clogging by powder and the growth of fungus are effectively prevented, and the use of insulating materials or the like is not required even in the open air.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder mixing and shipping apparatus which is installed and used in a mill such as a mill and used for shipping after mixing a plurality of powders at a predetermined ratio. It is a thing.

[0002]

2. Description of the Related Art A conventional powder mixing and shipping apparatus 100 is shown in FIG.
As shown in FIG. 5, first to fifth powder tanks 101, 10
2, 103, 104, 105 and the first to fifth of these
Of the powder tanks 101, 102, 103, 104, 105 for supplying predetermined powders to the pipelines 106, 107, 108,
109, 110 and the first to fifth powder tanks 10
1, 102, 103, 104, 105, a mixing device 111 for mixing a plurality of powders, and this mixing device 111
A shifter 112 which is connected to the inside of which a filter body is stored, and a mixed powder storage member 113 in which the powder that has passed through the shifter 112 is stored and a lower surface has a shipping opening (not shown). It is composed of

The above-mentioned respective pipelines 106, 107, 10
At one end of 8, 109, 110, a predetermined powder is applied to the conduit 1
06, 107, 108, 109, 110 to the first to fifth powder tanks 101, 102, 103, 104, 105
Pumping device 114, 115, 116 for pumping in
117, 118 are provided, and an opening / closing valve 106a, 1 for starting or stopping the powder feeding by these pressure feeding devices 114, 115, 116, 117, 118 is provided in the middle.
07a, 108a, 109a and 110a are attached. Further, the mixing device 111 is provided with a window portion (not shown) made of a transparent plate so that the powder inside can be visually observed.

Then, the conventional powder mixing and shipping apparatus 10 is used.
At 0, powder not shown is fed to the pressure feeding devices 114, 11
5,116,117,118 to pipelines 106,10
Each powder tank 10 through 7, 108, 109, 110
1, 102, 103, 104, 105 are respectively charged with predetermined powders, and then, for example, the first powder tank 10
The powder charged in No. 1, the powder charged in the third powder tank 103, and the powder charged in the fifth powder tank 105 are discharged into the mixing device 111, The powder mixed in the mixing device 111 is stored in the mixed powder storage member 113, and then loaded on the shipping truck T for shipment.

[0005]

However, the above-described conventional powder mixing and shipping apparatus 100 has various problems as described below. First, as described above, each powder is supplied to the pressure feeding devices 114, 115, 116, 117, 118.
Through the pipelines 106, 107, 108, 109, 110 by means of the powder tanks 101, 102, 103, 104, 1
When the outside air is extremely low, the pipes 106, 107, 108, 109, 110
Is formed on the inner peripheral surface of the pipe, and the powder causes the powder to pass through the conduit 10.
As a result of the adhesion and stacking on the inner peripheral surfaces of 6, 107, 108, 109 and 110, the powder cannot be efficiently pressure-fed in many cases, and in addition, the adhered and stacked powder has a mold. , Is a cause of markedly reducing the quality of the product. Therefore, in order to prevent such a situation, in the conventional powder mixing and shipping apparatus 100, at least the pipes 106, 107, 108, 109, and 110 are installed in the room and the room temperature is raised, or each of the pipes 106. , 107, 108, 109, 110 are installed outdoors, it is necessary to wind a heat insulating material around the peripheral surface. However, in these methods, the powder mixing and shipping device 10
It is inevitable that the installation location of 0 will be extremely limited or the cost will be high.

Further, the above-mentioned conventional powder mixing and shipping apparatus 100.
Then, the powder is stored in each powder tank 101, 102, 103, 10
When loading into the powder tanks 4, 105, each powder tank 101, 1
Whether or not 02, 103, 104, and 105 are full has been done by the operator's visual inspection, and each powder tank 101, 102, 103, 104, 10
The operator also confirmed the amount of the residual powder charged in the container 5 by using a predetermined device for each powder tank 101, 102, 103, 104, 105. When the powder is discharged from 102, 103, 104, 105 into the mixing device 111, for example, a void is generated in the third powder tank 103 and the powder in the powder tank 103 is not discharged into the mixing device 111. The confirmation is made by visually observing the window formed in the mixing device 111.
An extremely large number of workers are required in the steps from the step of putting the powder into the chambers 2, 103, 104 and 105 to the mixing of the predetermined powder. In addition, as described above, whether or not each process is smoothly progressing is performed by visual inspection of many workers, so that troubles occurring in each process may be found later or accurate mixing may be delayed. If not performed, not only will there be a large variation in quality, but there is a very high risk that the powder in the mixing device 111 cannot be shipped at all.

Further, in the powder mixing and shipping apparatus 100, when the shipping quantity of the product in which the specific powder is mixed is sufficient for the shipping quantity of one truck T, for example, the shipping quantity of a plurality of trucks T is continuous. It is extremely inefficient except when shipped as a package. That is, there are many kinds of powders shipped at the mill, and the powders are not necessarily the shipment amount for one truck T, but the powders loaded in the first powder tank 101, for example. It is necessary to ship three trucks of the first powder, which is a mixture of the powder put in the third powder tank 103 and the powder put in the fifth powder tank 105. 2 powder tanks 1
In the case where the second powder obtained by mixing the powder charged in 02 and the powder charged in the third powder tank 103 must be shipped for five trucks, the conventional powder described above is used. In the mixing and shipping apparatus 100, the second powder can be shipped only after the first powder has been shipped for three trucks T, and the shipping efficiency is extremely poor.

Therefore, the present invention has been proposed in order to solve various problems of the above-mentioned conventional powder mixing and shipping apparatus 100, in which the powder is fed to the inner peripheral surface of the pipeline. Provided is a powder mixing and shipping device in which powders are not adhered and laminated to form a mold, and a pipeline can be installed outdoors without winding any heat insulating material around the peripheral surface. That is the purpose. Further, the present invention, when a plurality of powders are charged into a powder tank or mixed in a mixing device, automatically and reliably detect the occurrence of a void without the operator's visual inspection, and An object of the present invention is to provide a powder mixing and shipping device that can effectively prevent the situation where only powder is not mixed. A further object of the present invention is to provide a powder mixing and shipping device that can efficiently ship a plurality of types of mixed powders.

[0009]

The present invention has been proposed to achieve the above object, and the first invention (the invention according to claim 1) is a plurality of powder tanks and A plurality of pipelines for supplying powder into the powder tank, a mixing device connected to the plurality of powder tanks, and a plurality of powder discharge devices for discharging powder into the mixing device from each of the plurality of powder tanks. The dehumidifying device is connected to at least the plurality of pipelines, and the dry air from the dehumidifying equipment is provided in the pipeline. It is characterized by being able to blow air inside.

The second invention (the invention according to claim 2)
Are a plurality of powder tanks, a plurality of pipelines for supplying powder into the powder tanks, a mixing device connected to the plurality of powder tanks, and a mixing device from each of the plurality of powder tanks. A plurality of discharging devices for discharging the powder inside, and a discharging part for discharging and shipping the powder in the mixing device, and each of the powder tanks has a powder to be charged into the powder tank. An upper limit level detecting device for detecting that the body is full, and a powder amount measuring device for measuring the amount of powder in the powder tank are provided.

The third invention (the invention according to claim 3)
Is a mixing device connected to a plurality of powder tanks, a plurality of discharging devices for discharging powder into the mixing device from each of the plurality of powder tanks, and discharging and shipping the powder in the mixing device. A discharge part is provided, and a porosity detection device is provided in the bottom direction of each of the powder tanks to detect the occurrence of a void at the lower end of the powder tank.

A fourth invention (the invention according to claim 4)
Are a plurality of powder tanks, a powder amount measuring means for detecting the amount of each powder charged in the plurality of powder tanks, a mixing device connected to the plurality of powder tanks, and a plurality of the plurality of powder tanks. A plurality of discharge devices for discharging the powder from each of the powder tanks into the mixing device, and detecting the occurrence of the voids when the voids are generated in the bottom direction of the powder tank while the discharge devices are driven. Means, shipping amount storage means for storing the number of a specific powder tank into which the powders to be mixed and the discharge amount of each powder to be mixed, and the amount of the shipped powders are measured. The discharging device is driven by an output signal from the shipping amount storage means and an output signal from the measuring device, which are connected to the measuring device, the powder amount measuring device, the mixing device, the discharging device, and the void detecting device. And control by the detection signal from the void detection means. And a control means for stopping controlling the driving of the discharge device and is characterized in that it comprises an.

[0013]

In the powder mixing and shipping apparatus according to the first aspect of the present invention, the dehumidifying device is connected to the plurality of pipelines so that the dry air from the dehumidifying equipment can be blown into the pipelines. If the powder is not pressure-fed by the pipeline, the humidity of the air in the pipeline will be reduced by the blowing of dry air, which will cause condensation on the inner surface of the pipeline. There is no.

Further, in the powder mixing and shipping apparatus according to the second aspect of the present invention, each powder tank is provided with an upper limit level detecting apparatus for detecting that the powder charged into the powder tank is full. And a powder amount measuring device for measuring the amount of powder in the powder tank, so that when a powder is put into each of the powder tanks through a pipeline, an operator can visually check it. It is not necessary to check whether or not the powder has become full, and the powder amount measuring device detects that the powder is discharged from the powder tank by a predetermined amount. You can easily confirm that your body is empty.

Further, in the powder mixing and shipping apparatus according to the third aspect of the present invention, a porosity detecting device for detecting occurrence of a void at the lower end of each powder tank is provided on the lower end side of each powder tank. From this, it is possible to confirm that a void has occurred in the powder tank earlier and more reliably than when visually observed by the operator.

In the powder mixing and shipping device according to the fourth aspect of the present invention, the control means is connected to the powder amount measuring means, the mixing device, the discharging device, and the void generation detecting means, and the shipping amount memory is provided. Since the driving of the discharging device is controlled by the output signal from the means and the output signal from the measuring device, and the driving of the discharging device is stopped by the detection signal from the void detecting means, for example, a total shipment of three trucks In the case of shipping the first powder in the quantity and the second powder in the total shipment quantity for two trucks, after shipping the first powder by the first truck, Different types of powders can be shipped continuously, such as shipping the second powder by the first truck and then the first powder by the second truck. . Further, since the control means is configured so that the driving of the discharging device is stopped when a void is generated by the void generation detection means, for example, three kinds of powders are mixed at a predetermined ratio and amount. In the case where the powder tank needs to be shipped after that, if a void occurs in any of the powder tanks, not only the discharge device corresponding to the powder tank in which the void has occurred but also the other discharge devices are stopped. Therefore, it is possible to effectively avoid the possibility that a powder in which only specific powder is not mixed is manufactured and shipped.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the powder mixing and shipping apparatus according to the present invention (hereinafter referred to as the present apparatus) will be described in detail below with reference to the drawings.

The apparatus 1 is installed in a mill, and as shown in FIG. 1, the first to fifth pipelines 3, 4, 5 respectively connected to a dehumidifier described later.
The powder P is introduced through 6, 7, and a level detecting device 8, a powder amount measuring device 9 which is a powder amount measuring means, and a void detection device 10 which is a void generation detecting means are attached. Powder tanks A to E 11, 12, 13, 1
4, 15 and powder tanks 11, 12, 1 of these A to E
Agitator conveyor 16 installed below 3, 14, 15 and powder tanks A to E described above,
1, 2, 13, 14, 15 and agitator conveyor 1
6 is connected to the powder tank 1 of A to E
Powder P put in 1, 12, 13, 14, and 15
So that the powder P mixed in the agitator conveyor 16 and the first to fifth discharging devices 17, 18, 19, 20, 21 for discharging the powder into the agitator conveyor 16 have a constant particle size. It is roughly configured from first to third shifters 22, 23, 24 for filtering.

Powder tanks 11, 12, 1 from A to E above
3, 14 and 15 are powders into which powder such as wheat flour is put, and these powders are provided in the first to fifth pipelines 3, 5.
Powder tank 1 of these A to E through 4, 5, 6, and 7
It is configured so as to be thrown into 1, 12, 13, 14, and 15. In addition, these first to fifth pipelines 3,
4, 5, 6, and 7 are provided with closing valves 5a, 5b, 5c, 5d, and 5e like the third conduit 5 shown in FIG. 1, and these closing valves 5a, 5b, 5c, and 5d are provided. , 5
e and powder tanks 11, 12, 13, 14, from A to E,
The reference numeral 15 is a charging pipe 11a, 12a, 13a, 14a, 1
It is connected by 5a. As described above, the first to fifth pipelines 3, 4, 5, 6, and 7 are connected to all of the powder tanks 11, 12, 13, 14, and 15 of A to B, respectively, and the arbitrary pipelines are connected. The powder P can be charged into any of the powder tanks 11, 12, 13, 14, and 15 via a path (for example, the third pipeline 5). The other ends of the pipe lines 3, 4, 5, 6, 7 are connected to the first to fifth rotary valves 25, 26, 27, 28, 29. And each rotary valve 25, 26, 27, 2
8, 29 are blowers 25a, 26a, 27a,
28a, 29a and crushers 31, 32 for crushing the raw material of the powder P such as wheat, respectively
Connected to the mixer 33 connected to. On the other hand, in each of the A to E powder tanks 11, 12, 13, 14, and 15, as shown in FIG. 2 showing the E powder tank 15, the dust collector 30 fixed to the upper portion of the powder tank 15 and the dust collector 30 Suction fan 34 from dust collector 30 via pipe 34a
The suction fan 34 is driven so that the inside of the powder tank 15 has a negative pressure. The dust collector 30 has a suction fan 34.
This is for preventing the powder from flowing into the inside. That is, in the present device 1, the blowers 25a, 26a, 2
7a, 28a, 29a and the first to fifth rotary valves 25, 26, 27, 28, 29 from the mixers 33 (not shown) to the rotary valves 25, 26, 2
The powder P is pumped into 7, 28, 29 and the pressure in the powder tanks 11, 12, 13, 14, 15 is set to a negative pressure by the suction fan 34.
The predetermined powder P is introduced into each of the powder tanks 11, 12, 13, 14, and 15 via the pipe lines 3, 4, 5, 6, 7 and the introduction pipe. It should be noted that each of the injection valves 5a, 5b, 5c, 5d, provided in the third conduit 5,
Each input valve provided in each of the first to fifth pipelines 3, 4, 5, 6, 7 including 5e is connected to a central processing unit via a control panel described later, It can be opened and closed by the central processing unit. As described above, each suction fan 34 is connected to each powder tank 11, 12, 13, 14, 15 via the pipe 34a, and a control panel described later is provided in the middle of each pipe 34a. A switching valve 34b, which is connected via a central processing unit and can be opened and closed by the central processing unit, is attached. The dust collectors 30 are also connected to the central processing unit via the control panel.

Then, the first to fifth pipelines 3, 4,
5, 6, 7 and the rotary valves 25, 2 described above.
In the vicinity of 6, 27, 28 and 29, as shown in FIG.
Dehumidifiers 35, 36, 37, 38, 39 are attached respectively, and dry air from the dehumidifiers 35, 36, 37, 38, 39 is supplied to the first to fifth pipe lines 3, 4, 5, 5.
It is designed to flow into the inside of 6, 7. In addition, these dehumidifiers 35, 36, 37, 38, 39 and the respective conduits 3,
Dry air valves 35a, 36a, 3 which are opened and closed via a central processing unit described later between 4, 5, 6, 7
7a, 38a, 39a are arranged. Further, as shown in FIG. 2, the powder tank 15 of E (the powder tank 1 of A to D
1, 12, 13, 14 are also the same), the dry air from the dehumidifying device 39 (35, 36, 37, 38) passes through each pipe 7 (3, 4, 5, 6) on the top plate 15a. A ventilation port 15b is formed so that the powder tank 15 (11, 12, 13, 14) of (from A) E is discharged to the outside. Therefore, in the present device 1, the dry air from the first to fifth dehumidifiers 35, 36, 37, 38, 39 passes through the pipe lines 3, 4, 5, 6, 7 and the powder tank 11, respectively. It flows into 12, 13, 14, and 15 and is discharged to the outside through each ventilation port 15b. Due to this air blow, even if the outside air is extremely low, dew condensation does not occur on the inner peripheral surfaces of the first to fifth pipelines 3, 4, 5, 6, 7 It is possible to effectively prevent the generation of mildew due to P being deposited and laminated.

In addition, the powder tanks 11 and 1 from A to E described above
In addition to the suction fan 34 described above, the upper limit level detecting device 8 and the powder amount measuring device 9 are provided above the suction fans 34, 13, 14, 15 as shown in FIG. Has been done. The upper limit level detecting device 8 includes a rotating body 8a rotatably attached to a lower surface of a top plate 15a which constitutes the powder tank 15, a drive motor 8b for rotationally driving the rotating body 8a, and the inside of the powder tank 15. It comprises a detection unit (not shown) that detects that the rotation of the rotating body 8a is stopped by the resistance of the charged powder P coming into contact with the rotating body 8a.

Further, in the powder amount measuring device 9, as shown in FIG. 3, a substrate 43 is fixed in a housing 42, and a motor (not shown) is supported on the substrate 43. The motor has a brake (not shown) on the rear end side and a speed reducer 44 on the front end side.
A take-up reel 46 is fixed to 5. A rope 48 having a weight 47 fixed to the end thereof is wound around the winding reel 46. Further, in the vicinity of the take-up reel 46, a pressing plate 49 supported by the substrate 43 is provided.
Is provided, and a guide 50 is provided on the inner peripheral surface of the pressing plate 49. A hanging roller 51 is arranged diagonally above the guide 50, and is rotatably supported by a bracket 52. The bracket 52 is connected to the rod 53, and the spring receiver 54 attached to the upper end of the rod 53 receives the upper end of the compression coil spring 55. The lower end of the compression coil spring 55 is received by a receiving seat 56 integrally attached to the substrate 43, and the upper end of the rod 53 is connected to the microswitch 5.
7 is facing. Further, a tension lever 58 is arranged below the suspending roller 51, and a base end of the tension lever 58 is rotatably supported by a support shaft 59 provided on the substrate 43. Further, a pair of stoppers 60 and 61 for restricting the rotation amount of the tension lever 58 are provided on the substrate 43. Then, a guide 58a provided on the tip side of the tension lever 58
Is designed to absorb the slack of the rope 48. Further, a side length roller 64 is arranged inside the tension lever 58, and the length of the rope 48 fed out by an encoder (not shown) is measured. A guide ring 63 is supported on the lower end side of the housing 42, and the guide ring 63 supports the sleeve 65 so as to be slidable in the axial direction. Also,
The sleeve 65 is biased downward by a compression coil spring 66. Further, the rope 48 penetrates the central portion of the sleeve 65, and the weight 47 is fixed to the tip end side thereof. The weight 47 is accommodated in the weight receiver 67 in a pulled-up state. Is being done. The washer below the bolt 68 fixed to the upper end of the sleeve 65 presses the micro switch 69. As shown in FIG. 2, the powder amount measuring device 9 having the above-described configuration is provided with the powder tank 15 of E.
(The same applies to the powder tanks 11, 12, 13, 14 of A to D)
The weight receiver 67 is fixed to the upper surface of the top plate 15a, and as shown in FIG. 4, the weight receiver 67 is disposed so as to face the opening formed in the top plate 15a. Then, in this state, while rotating a motor (not shown) in reverse through a central processing unit described later, as shown in FIG. 5, the rope 48 is paid out, and the weight 47 fixed to the tip of the rope 48 is attached to the powder P. The length of extension of the rope 48 until it comes into contact with is determined. Before unwinding the rope 48, as shown by a chain line in FIG.
Since the washer at the bottom is pressing the micro switch 69, the origin is reset at this position. And
When the motor is reversely rotated and the rope 48 is paid out, the sleeve 65 descends as shown by the solid line in FIG. 3 and separates from the micro switch 69. The signal from the micro switch 69 is supplied to the central processing unit via a control interface (not shown). Then, from this time, a counter (not shown) reads the pulse of the encoder and counts it according to an instruction from the central processing unit. Then, when the rope 48 is paid out from the take-up reel 46, the rope 48 drops downward while rotating the side length roller 64, and since the side length roller 64 is connected to the encoder, the side length roller 64 is connected. It is possible to obtain the amount of extension of the rope 48 from the rotation amount of 64. Then, as shown in FIG. 6, the rope 4
When the weight 47 fixed to the tip of 8 contacts the powder P put into the powder tank 15, the rope 48
The suspension roller 51, which has been pulled downward by the tension of the rope 48, is moved upward by the compression coil spring 55 together with the bracket 52 and the rod 53, and the micro switch 57 is moved by the tip of the rod 53. Press. In this way, the micro switch 57
When is pressed, the signal is supplied to a central processing unit (to be described later) through a control interface (not shown), and a counter (not shown) finishes counting the pulse supplied from the encoder and latches the value. Take it into the central processing unit. In this way, the amount of the powder P in the powder tank 15 is measured. After that, the motor drives the take-up reel 46 to wind the rope 48, thereby returning the weight 47 to the initial position.

The lower end side of the powder tank 15 of E (similarly to the powder tanks 11, 12, 13, 14 of A to D) is gradually reduced in diameter, and as shown in FIG. A cylindrical discharge portion 15c is formed and is connected to the fifth discharge device 21. A window portion 15d made of a transparent synthetic resin is formed in the cylindrical discharge portion 15c, and a void is detected in the window portion 15d via an attachment plate 10a bent in an L shape. A void detecting device 10 as a means is attached. The void detection device 10 is a capacitance proximity switch (model number: E2K-C) manufactured and sold by OMRON Corporation, and is used when the powder P does not exist in the discharge portion 15c of the powder tank 15. It is something to detect. The void detection device 10 is connected to a central processing unit via a control panel as will be described later, and when the occurrence of a void is detected by the void detection device 10, each ejection drive motor is stopped. Is configured to. Further, in the present device 1, a vibrator 70 is arranged on the peripheral surface of the powder tank 15 of E (similarly to the powder tanks 11, 12, 13, 14 of A to D) on the lower end side, the powder 70 The vibrator 70 is driven when the powder P is discharged from the tank 15, and the generation of voids is prevented as much as possible.

Then, as described above, the discharge parts 11 of the powder tanks 11, 12, 13, 14, and 15 of A to E described above.
As described above, the c, 12c, 13c, 14c, and 15c have the first to fifth discharging devices 17, 18, 19, 20,
21 are provided. These ejectors 17, 18,
1, 19, 20 and 21 are screws 17b, 18b and 1 which are rotationally driven by the drive of discharge drive motors 17a, 18a, 19a, 20a and 21a, respectively.
9b, 20b, 21b are cylindrical bodies 17c, 18c, 19c,
The discharge drive motors 17a, 18a, 19a, 20a, 2 are disposed in the 20c, 21c.
1a is connected to a speed control device (inverter), which will be described later, so that the rotation speed can be individually changed. In addition, each of the discharge devices 17, 18, 19, 2 described above
0 and 21 are connected to the agitator conveyor 16, and the powder P discharged through the discharge devices 17, 18, 19, 20, and 21 is mixed in the agitator conveyor 16. Further, the first to third shifters 22, 23, 24 are provided below the agitator conveyor 16 via the pipelines 71, 72, 73, and these pipelines 71, 72, 73 are provided. Slide gates 71a, 72a and 73a that are opened and closed by a central processing unit are provided in the middle of each. These shifters 22, 23, 24 are provided with a filter (not shown) inside, so that the particle diameter of the powder P mixed in the agitator conveyor 16 becomes constant by this filter. Has been done. Then, discharge pipes 22a and 23a as discharge units are attached to the lower ends of the first and second shifters 22 and 23, and these discharge pipes 22a and 23a are opened from the powder storage unit opening of the shipping truck T. Shipping sensors 22b and 23b are provided to detect whether or not the powder has overflowed. On the other hand, a return rotary valve 74 is provided at the lower end of the third shifter 24, and a return blower 75 is provided on the return rotary valve 74. Then, the return rotary valve 74 and A to E
The powder tanks 11, 12, 13, 14, and 15 are the return pipe 69 connected to the return rotary valve 74 and the powder tanks 11 of A to E branched from the return pipe 69. , 12, 13, 14, 15 are connected via branch pipes 76, 77, 78, 79, 80. Then, the return conduit 69
Between the branch pipes 76, 77, 78, 79 and 80 and the return injection valves 76a and 77, respectively.
a, 78a, 79a, 80a are attached. Therefore, in the present device 1, the powder P mixed in the agitator conveyor 16 is the return pipe 69.
And each of the branch pipelines 76, 77, 78, 79, 80, the powder tanks 11, 12, 13, 1 from A to E are again provided.
It is possible to put it again in any one of 4 and 15. Below the first and second shifters 22 and 23, there is provided a weighing platform 81 on which the shipping truck T is placed, and the weighing platform 81 is connected to a weighing machine 86 as described later. Has been done.

Next, a description will be given of the electrical connection relationship of the various devices that make up the above-described present device 1. As shown in FIG. 7, the first to fifth pipelines 3, 4, 5, 6, are described. First to fifth rotary valves 25 to which 7 is connected,
26, 27, 28, 29, this rotary valve 25,
Blowers 25a, 26a, 27a, 28a, 29a for cooperating with 26, 27, 28, 29 to pressure-feed the powder P and the rotary valves 25, 26, 27, 28, 29.
Each mixer 33 for supplying the powder P therein and mixing the powder P crushed by the crushers 31, 32 is connected to a central processing unit (CPU) 83 via a control panel 82. There is. In addition, the dehumidifying devices 35, 36, 3
7,38,39 and dehumidifiers 35,36,3 of these
Dry air valves 35a, 36a, 37a, 38a for supplying or canceling the supply of the dry air discharged from 7, 38, 39 into the first to fifth pipelines 3, 4, 5, 6, 7. Three
9a is also connected to the central processing unit 83 via the control panel 82. Further, the first to fifth pipelines 3, 4,
Each of the injection valves 5a, 5b, 5 arranged at 5, 6, 7
c, 5d, 5e and their respective injection valves 5a, 5b,
The powder P is A, B, C, D or E by 5c, 5d and 5e.
Suction fans 34 to be driven when the powder tanks 11, 12, 13, 14, and 15 of A, B, C, D, or E powder tanks 11, 12, The switching valve 34b arranged in each tube 34a connecting the 13, 14, and 15 is connected to the central processing unit 83 via the control panel 82. Also, the powder tanks 11, 12, 1 from A to E above
The upper limit level detecting device 8, the powder amount measuring device 9, the dust collector 30, the vibrator 70, the void detecting device 10, and the agitator conveyor 16, which are attached to 3, 14, and 15, Third shifter 22,2
3, 24, return rotary valve 74, and return input valves 76a, 77a, 78a, 79a, 8
0a, the blower 75, and the shipping sensors 22b and 23b, which are disposed on the discharge pipes 22a and 23a and detect whether or not the powder has overflowed from the openings of the shipping truck T, are all provided via the control panel 82. Connected to the central processing unit 83. In addition, each of the discharging devices 17, 18, 1
The first to fifth discharge drive motors 17a, 18a, 19a, 20a, 21a constituting 9, 20, 21 are connected to the central processing unit 83 via a speed control device (inverter) 84, and the speed control The device 84 allows an arbitrary amount of the powder P to be mixed from the powder tank to the mixing device 16 as described later.
It is designed so that it can be discharged inside. The weighing platform 81 on which the shipping truck T is placed is connected to a weighing instrument 85, and the measurement value of the weighing instrument 85 is supplied to the central processing unit 83. The central processing unit 83 has a storage element such as a RAM as a storage means inside and is connected to the input operation unit 86. As will be described later, the powder tanks 1 to 1 of A to E are provided.
The number of powder tanks to be discharged among 1, 12, 13, 14, and 15, the number of powder tanks, the amount of powder P to be discharged from the specific powder tank, the discharging time, and in the case of return operation When the number of the powder tank for re-inputting the powder P mixed by the agitator conveyor 16 or the like is input, the storage means stores the information, and the control panel is operated via the central processing unit 83. First to fifth units connected to the central processing unit 83 via various devices, valves, etc. connected to 82, and a speed control unit 84.
Discharge drive motors 17a, 18a, 19a, 20a, 2
1a is driven and controlled. The central processing unit 83 has the first to third monitors 87,
88, 89 and the printer 90, and the powder tanks 11, 12, A to E, which are measured by driving the powder amount measuring devices 9 by the first to third monitors 87, 88, 89, respectively. The amount of powder, the elapsed shipping time, the completed shipping time, and the like can be confirmed in 13, 14, and 15 in a monitoring room (not shown) or in the vicinity of the shipping truck T, for example.
Further, the printer 90 can confirm the amount of powder shipped by the first shipping truck T, for example.

The operation of the present apparatus 1 having the above-mentioned configuration will be described in detail below. First, referring to FIG. 8, the operation when the powder P is charged into a predetermined powder tank (for example, the powder tank 13 of C) among the powder tanks 11, 12, 13, 14, and 15 of A to E is referred to. While explaining in detail.
First, in step st1, the number of the predetermined (C) powder tank 13 into which the powder P is to be input is input by the input operation unit 86. In addition, the powder P is sequentially placed in the plurality of powder tanks.
To add, enter the numbers of multiple powder tanks. When the input of these powder tank numbers is completed, the suction fan 34 connected to the powder tank 13 via the pipe 34a starts driving in step st2. In step st3, it is determined whether or not the powder tank 13 into which the powder P is to be charged is full. If the powder tank 13 is full, the process is stopped. If it is not full, the charging valve 5c is opened in step st4. To be done. The upper limit level detecting device 8 and the powder amount measuring device 9 determine whether the powder tank 13 is full. In step st5, the charging valve 5c may not be completely opened. Therefore, it is confirmed whether or not the charging valve 5c is opened. If the charging valve 5c is opened, the mixing valve that has been driven until then in step st6 is mixed. Machine 33
Is temporarily stopped, and the dry air valve 37a is closed in step st7. This is to prevent the powder P from entering the dehumidifier 37 by charging the powder P while the dry air valve 37a is opened. When the dry air valve 37a is closed, the mixer 33, the blower 27a, and the rotary valve 27 are operated in steps st8, st9, and st10.
Is driven, and the powder P is introduced into the C powder tank 13 through the third pipeline 5 by these driving. Then, in step st11, the upper limit level detection device 8 detects whether or not the powder tank 13 is full, and if the powder tank 13 is not full, the injection of the powder P is continued, and if it is full, step st12 In, it is determined whether or not there is a reservation for the powder tank to be charged next. If there is a next reservation, the process returns to step st2 and the operations up to step st10 are repeated. When there is no next reservation, the suction fan 34, the blower 27a, the mixer 33, and the third rotary valve 27 are set to steps st13, 14, 1 respectively.
5 and 16, respectively, and after that, in step st17, the dry air valve 37a is opened, and the dry air by the dehumidifier 37 is made to flow into the powder tank 13 of C through the third pipe line 5, The charging of the powder P is completed. Therefore, according to the present device 1, the powder P passes through the pipelines 3, 4, 5, 6, 7 and the powder tanks 11, 12, 1 respectively.
Even when the outside air is extremely low, the dry air is always flowed into the pipe lines 3, 4, 5, 6, 7 except when the air is fed into the pipes 3, 14, and 15. Pipeline 3,
Condensation does not occur on the inner peripheral surface of 4, 5, 6, 7
Therefore, the risk that the pipelines 3, 4, 5, 6, 7 are clogged with the powder P, and that the powder P is moldy is effectively prevented. Also, powder tanks 11, 12, 13, 14, 1
Whether or not the powder P has become full while the powder P is being charged into the chamber 5 is detected by the upper limit level detection device 8 and the suction fan 34, the blowers 25a, 26a,
27a, 28a, 29a, the mixer 33, and the rotary valves 25, 26, 27, 28, 29 are configured to automatically stop according to the detection result of the upper limit level detection device 8, and therefore, as in the conventional case. Moreover, it is not necessary for the operator to visually confirm whether or not the powder tanks 11, 12, 13, 14, and 15 are full.

Next, each powder tank 11, 12, 13, 1
The operation of measuring the amount of the powder P put in the nozzles 4 and 15 will be described in detail with reference to FIG. First,
In step st20, the predetermined powder tanks 11, 12, 13, 1 whose powder amount should be measured by the input operation unit 86
Set numbers 4 and 15. Then, step st21
Then, the powder P is currently set to the powder tank 1 of the set B, for example.
It is judged whether or not it is being charged in 2, and if it is being charged, the measurement is stopped, while if it is not being charged,
In step st22, the amount of powder is measured. Whether or not the powder P is being supplied is confirmed, for example, by whether or not the second rotary valve 26 is being driven. The powder amount is measured by the powder amount measuring device 9 described in detail above, and when the measurement for each powder tank is completed in step st23, it is calculated by the central processing unit 83 in step st24 and then in step st25. Then
It is displayed by the first to third monitors 87, 88, 89, and the printer 9 is displayed in step st26.
Outputs to 0 and ends. The powder amount measuring device 9
When the measurement of the powder amount is completed as described above, the motor (not shown) is driven to wind the rope 48 around the take-up reel 46 and return to the initial position.

Next, each powder tank 11, 12, 13, 1
The operation of discharging and mixing the powder P from Nos. 4 and 15 and then shipping is described in order with reference to FIGS. 10 and 11. First, steps st30, 31, 32, 3
3, a plurality of powder tanks for discharging the powder P (for example, the powder tanks A, C and E,
13, 15), the number of the plurality of powder tanks (three in this case), the discharge amount of the powder P discharged from each of the powder tanks 11, 13, 15 and the powder tank 1
The discharge time of the powder P from 1, 13, and 15 is set, respectively. Note that the discharge time of the powder P is set in step st33 in order to detect the accurate discharge amount by this discharge time when the discharge amount of the powder P by the powder amount measuring device 9 described later is not accurately measured. This is to try.
Then, these set values are transmitted to the central processing unit 83 in step st34, and then, in step st35, the powder P is discharged into the powder tanks 11, 13, 15 of A, C and E, for example. It is determined whether or not P is turned on. If it is being turned on, the subsequent operation is stopped. If it is not turned on, step st3
6, the button (not shown) for starting the measurement of the amount of powder in each powder tank 11, 13, 15 is operated, so that each powder tank 1 in step st37 is operated.
The measurement of the amount of powder in 1, 13, 15 is started. And
At step st38, each of the powder tanks 11, 13,
It is determined whether each of the powders P is filled with the amount of powder P required for shipping. At this time, if any one of the powder tanks is not filled with the predetermined amount of powder P, the shipment is stopped, and then the powder is stored in the powder tank as described with reference to FIG. Put body P. If all the powder tanks 11, 13, 15 are filled with the predetermined amount of powder P, whether or not the discharge pipes 22a, 23a are set in the openings of the shipping truck T in step st39. To judge. These discharge pipes 22a,
If 23a is not set, step st3
Return to 4. When it is confirmed that it is set, in steps st40, 41, 42, 43, the first and second shifters 22, 23, the agitator conveyor 16, the first, third, and fifth discharges are performed. Drive motor 17
The vibrators 70 provided in the powder tanks a, 19a, 21a and the powder tanks 11, 13, 15 respectively start driving, and in step st44, shipping to the shipping truck T is started. The rotation speeds of the first, third, and fifth discharge drive motors 17a, 19a, 21a are adjusted via a speed control device (inverter) 84 connected to the central processing unit 83. Then, as shown in FIG. 11, during shipping (step st45), whether or not a void has occurred in any of the A, C, and E powder tanks 11, 13, and 15 is detected by the above-described void detection device 10. (Step s
t46), if no void is generated, step st
At 47, it is determined whether or not the powder P mixed in a predetermined amount has been shipped. It should be noted that this determination is made by the central processing unit 83, the weighing platform 81 connected to the weighing machine 85.
This is performed by detecting whether or not the upper shipping truck T has reached a predetermined weight. If the predetermined weight has not been reached, the process returns to step st45 to continue shipping. Then, when a predetermined amount of the mixed powder P is shipped and when it is detected that a void is generated in the step st46, the central processing unit 83 (step st4).
8), in steps st49, 50, 51 and 52, the first, third and fifth ejection drive motors 17a,
19a, 21a, the agitator conveyor 16, the 1st and 2nd shifters 22, 23 are stopped, respectively. Next, at step st53, it is judged whether or not the powder P to be shipped to the next shipping truck T is also the same powder P as this powder P, and if it is the same powder P, Then, returning to step st34 shown in FIG. 10, if it is another powder P, it is determined in step st54 whether or not the powder P shipped this time remains in the agitator conveyor 16. If the powder P shipped this time remains in the agitator conveyor 16, the return operation described in detail later is performed (step st5).
5) Put the mixed powder P in the agitator conveyor 16 into, for example, the D powder tank 14 other than the powder tanks 11, 13, 15 from which the powder P has been discharged this time, and then, for example, the next shipping truck T. When the same powder P as the powder P shipped this time is shipped again after shipping the powder P to be shipped to the customer, the powder tanks 1 for A, C, and E in step st30 described above.
Not only 1, 13, 15 but also this D powder tank 14 is set. If the powder P does not remain in the agitator conveyor 16, the shipping is completed (step st56).

Finally, the case of performing the return operation using the present apparatus 1 will be described with reference to FIGS. 12 and 13. The return operation here means a plurality of powders P.
Is not shipped immediately after being mixed, but the mixed powder P is put into another powder tank. By this return operation, the powder P is shipped from the separate powder tank to the next shipping truck T, or the powder P in the separate powder tank and the powder P in the other powder tank are mixed and further shipped. Work such as shipping as another powder P can be enabled. When performing this return operation, first, as shown in FIG. 12, steps st60, 61, 62, 6
3, a plurality of powder tanks for discharging the powder P (for example, the powder tanks A, C and E,
13, 15), the number of the plurality of powder tanks (three in this case), the discharge amount of the powder P discharged from each of the powder tanks 11, 13, 15 and the powder tank 1
A powder tank (for example, D powder tank 14) for return (input destination) into which the powder P discharged and mixed from 1, 13, 15 is charged is set. Then, in step st64, the upper limit level detection device 8 determines whether or not the powder tank 14 of the charging destination is full. If the powder tank 14 of the input destination is full, the return operation is stopped, and if it is not full, the suction fan 34 provided in the powder tank 14 of the input destination in step st65.
Starts driving, and the fourth return input valve 79a is opened (step st66). Since the fourth return injection valve 79a may not be opened in some cases, it is determined in step st67 whether or not the valve is surely opened, and if it is opened, the powder tank A for discharging is A. , C, and E powder tanks 11, 13, and 15 provided corresponding to the first, third, and fifth discharge drive motors 17a, 19a, and 21a start driving (step st68). Next, in step st69, the return blower 75 starts driving, and in step st70, the slide gate 73a opens and the return rotary valve 74 starts driving. Next, as shown in FIG. 13, in step st71, the third shifter 24 starts driving, and in steps st72 and 73, the agitator conveyor 16 and the vibrator 70 respectively start driving. Then, by driving these, the powder P is discharged from the powder tanks 11, 13, 15 of A, C, E by the discharging device 17,
The powder P discharged into the agitator conveyor 16 through 19, 21 and mixed in the agitator conveyor 16 is returned by the return rotary valve 74 and the return blower 75 through the third shifter 24. The D is put into the powder tank 14 (return) through the pipe line 69 (step st74). Whether or not any of the powder tanks 11, 13, 15 (powder tank for discharge) is emptied during the start of the discharge and the return (step st75), the powder tank 11, Whether or not a void is generated in 13, 15 (powder tank for discharge) (step st76) and whether or not the powder tank 14 at the charging destination is full (step st77)
Is judged. And either of the powder tanks 11, 13,
When 15 (powder tank for discharge) is empty, when a void is generated in any of the powder tanks 11, 13, 15 (powder tank for discharge), and the powder tank 14 at the charging destination is full. If so, in step st78, all of the discharge drive motors 17a, 19a, 21a are stopped, and step s
At t79, the agitator conveyor 16 stops,
At step st80, the vibrator 70 is stopped,
Further, the third shifter 24 is stopped (step st8
1), the blower 75 for return, the rotary valve 74 for return, and the suction fan 34 arranged in the powder tank 14 of D respectively stop driving (step st82,
83, 84), the return injection valve 79a provided in the return pipe 69 that connects the D powder tank 14 and the return rotary valve 74 is closed (step st85), whereby the return operation ends. To do.

As described above, in the powder mixing and shipping apparatus 1 according to the above embodiment, the first to fifth pipelines 3, 4, 5, 6, 7 are provided.
Dehumidifiers 35, 36, 37, 38, 39, respectively.
Are connected to the dehumidifiers 35, 36, 37, 38,
Since the dry air from 39 can be blown into the pipe lines 3, 4, 5, 6, and 7, when the powder P is not being pressure-fed by the pipe lines 3, 4, 5, 6, and 7. By blowing the dry air, the humidity contained in the air in the pipe lines 3, 4, 5, 6, 7 is lowered, and thereby the pipe lines 3, 4, 5, 6,
7 No condensation occurs on the inner surface. Therefore, it is possible to effectively prevent the insides of the pipelines 3, 4, 5, 6, 7 from being clogged or the powder P to be moldy due to the occurrence of such dew condensation. Thus, it is possible to effectively save the trouble of wearing clothes. In addition, in the above-mentioned embodiment, the pipe lines 3, which are arranged for charging the powder P,
Although the description has been given by taking as an example the one configured so that the dry air flows into the 4,5, 6, 7; however, in the present invention, the dry air may be additionally provided in the return pipe lines 76, 77, 78, 79, 80. It may be connected to a dehumidifying device (not shown) so that the air flows in.

Further, in the powder mixing and shipping apparatus 1 according to the above embodiment, the powder tanks 11, 12, 13, 14 for A to E,
An upper limit level detection device 8 for detecting that the powder P charged into the powder tanks 11, 12, 13, 14, 15 is full, and the powder tanks 11, 12, 13, 1, 1.
The powder amount measuring device 9 for measuring the amount of powder in the powder tanks 4, 15 is provided, so that the powder tanks 11, 12, 13, 14 are connected via the pipe lines 3, 4, 5, 6, 7. When the powder P is put into the powders 15 and 15, it is not necessary for the operator to visually confirm whether or not the powder P is full, and the powder P is measured by the powder amount measuring device 9. Powder tank 11,1
Since it is detected that a predetermined amount is discharged from 2, 13, 14, 15, the powder tanks 11, 12, 13, 14,
It can be confirmed very easily and surely that the powder P in 15 has become empty without the operator's visual observation.
In the powder mixing and shipping apparatus 1 according to the above-described embodiment, the rope 47 having the weight 47 fixed to the tip thereof is driven by the motor from the take-up reel 46 to the weight 47.
The device for measuring the amount of powder by feeding out the powder P put into the inside of 12, 13, 14, 15 until it comes into contact with the powder P and measuring the length of the feeding has been illustrated and described. Powder tank 11, 12, 13, 14, 15
Any other structure may be used as long as the amount of powder inside can be measured. Similarly, in the powder mixing and shipping apparatus 1, a void is generated at the lower end of each powder tank 11, 12, 13, 14, 15 at the lower end of the powder tank 11, 12, 13, 14, 15. Since the porosity detection device 10 for detecting such a fact is provided, it is possible to confirm that a porosity has occurred in the powder tank earlier and more reliably as compared with the case of visual inspection by the operator. This void detection device 10 has also been described by taking the void detection device 10 using the optical sensor having the light emitting portion and the light receiving portion as an example in the device 1 according to the above-described embodiment. For example, as shown in FIG. And a tongue piece 93 formed of a conductive material, the base end of which is fixed to the inner wall 91a of the powder tank 91 from which the powder P is gradually discharged, and the connection terminal 92 of which is provided at the tip end. Inner wall 9 of powder tank 91
1a and an elastic body 95 arranged in a direction in which the one connection terminal 92 and the other connection terminal 94 are separated from each other.
3 and the other connection terminal 94 may be a void detection device 96 connected to the central processing unit 83.
According to the void detection device 96 having such a configuration, when the powder P is appropriately discharged from the powder tank 91, the one connection terminal 92 and the other connection terminal 94 are in contact with each other, and vice versa. If a void is generated in the powder tank 91,
Since the one connection terminal 92 and the other connection terminal 94 are separated from each other by the elastic force of the elastic body 95, it is possible to detect the occurrence of a void in the powder tank 91. Therefore, in the present invention, the void detection device 96 may be used instead of the void detection device 10.

Further, in the powder mixing and shipping apparatus 1, the central processing unit 83, which is a control means and has a storage means inside, controls the number of the specific powder tank into which the powder P to be mixed is put. The discharge amount of each powder P to be mixed is stored, and the central processing unit 83 determines the amount of the powder P shipped (the powder P shipped to the shipping truck T).
The output signal from the measuring device 85 for measuring the amount of the discharge amount) is, for example, the first, third, and fifth discharge drive motors 17a, 1 constituting the first, third, fifth discharge devices 17, 19, 21.
Since the drive of 9a and 21a is controlled, for example, the first mixed powder having a total shipping amount of three trucks T for shipping and the second mixed powder having a total shipping amount of two trucks T In the case of shipping the body, the first mixed powder is shipped by the first shipping truck T, then the second mixed powder is shipped by the first shipping truck T, and then the first mixed powder is shipped. Mixed powders of different types can be continuously shipped, such as shipping one mixed powder by the second shipping truck T. Further, the central processing unit 83, which is the control means, when the voids are generated by the void generation detection means 10 (96), the first, third and fifth discharge devices constituting the discharge devices 17, 19 and 21. Drive motor 17a,
Since the driving of 19a and 21a is all stopped, for example, when it is necessary to mix three kinds of powder P at a predetermined ratio and amount and then to ship,
When a void is generated in any of the powder tanks (for example, the E powder tank 15), not only the discharge device 21 corresponding to the powder tank 15 in which the void has occurred but also the other discharge devices 17 and 19 are stopped. Therefore, it is possible to effectively avoid the risk of manufacturing and shipping a mixed powder in which only the specific powder P is not mixed.

Further, in the powder mixing and shipping apparatus 1 according to this embodiment, as described above, the powders P mixed in the agitator conveyor 16 are mixed with the powder tanks A to E for the powder tanks 11, 12 ,.
The powder tanks A, C, and E are, for example, configured so that they can be charged into a predetermined powder tank among 13, 14, and 15 (configured so that a return operation can be performed). , 13 and 15 may be mixed with each other and mixed in the powder tank 14 of D, and the next shipment may be performed only from the powder tank 14 of D. Alternatively, the powder (mixed powder) charged by the return operation in the powder tank 14 of D is mixed with the powder P charged in the second powder tank 12 by the agitator conveyor 16, for example. It can also be shipped.

As described above, according to the powder mixing and shipping apparatus 1 according to the above-mentioned embodiment, the loading, mixing and shipping operations of the powder P, which could not be performed unless many workers are required in the prior art, are extremely performed. It can be performed easily, quickly, and reliably by a small number of people. In particular, it is necessary to ship a specific mixed powder mixture on multiple shipping trucks, and there are many types of mixed powder of this amount. Even when climbing, it is possible to effectively eliminate the inconvenience that it is not possible to ship other types of mixed powders only after all the specific types of mixed powders have been shipped by multiple shipping trucks. As a result, the product can be shipped extremely efficiently.

[0035]

As is apparent from the above description of the embodiment of the present invention, according to the powder mixing and shipping apparatus of the present invention, and in particular, according to the invention of claim 1, dehumidification is performed in a plurality of pipelines. Since the device is connected and the dry air by the dehumidifying device can be blown into the pipeline, when the powder is not pressure-fed by the pipeline, the air in the pipeline is blown by the dry air. The humidity contained therein is reduced, and as a result, dew condensation does not occur on the inner peripheral surface of the pipeline. Therefore, unlike the prior art, it is not necessary to install the pipeline indoors, and when it is installed outdoors, it is not necessary to use a heat insulating material in the pipeline, and the manufacturing can be performed at an extremely low cost.

Further, in the invention as set forth in claim 2, each powder tank has an upper limit level detecting device for detecting that the powder to be charged into the powder tank is full, and an upper limit level detecting device in the powder tank. Since the powder amount measuring device for measuring the powder amount is provided, when the powder is put into each powder tank through the pipe line, the operator can visually check that the powder is full. It is not necessary to confirm whether or not the powder has been discharged, and the powder amount measuring device detects that a predetermined amount of powder has been discharged from the powder tank. For example, the powder in the powder tank has become empty. It can also be easily confirmed.

Further, in the invention according to claim 3, since a porosity detecting device for detecting occurrence of a void at the lower end of each powder tank is provided on the lower end side of each powder tank, the operator can visually check. It is possible to confirm that a void has occurred in the powder tank earlier and more reliably than in the case described above. Therefore, according to the second and third aspects of the invention, it is possible to perform the powder loading operation, the mixing operation, and the like by an extremely small number of workers.

Further, in the invention according to claim 4, the control means is connected to the powder amount measuring device, the mixing device, the discharging device and the void generation detecting device, and an output signal from the shipping amount storage device is provided. Since the driving of the discharging device is controlled by the output signal from the weighing device and the driving of the discharging device is stopped by the detection signal from the void detection device, for example, the first shipment amount is set to the total shipment amount of three trucks. In the case of shipping the first powder and the second powder, which is the total shipping amount for two trucks, the first powder is shipped by the first truck and then the second powder is shipped. Different types of powder can be shipped continuously, such as shipping by the first truck and then shipping the first powder by the second truck.

Further, since the control means is constructed so that the drive of the discharging device is stopped when the void is generated by the void detecting device, the powder of, for example, three types is mixed at a predetermined ratio. When a void is generated in any of the powder tanks in the case where the powder tanks need to be mixed after being mixed in a certain amount, not only the discharge device corresponding to the powder tank in which the void has occurred but also the other discharge devices are stopped. Therefore, it is possible to effectively eliminate the inconvenience that other types of powders cannot be shipped unless only the specific powders are first mixed and shipped, and thereby the powders mixed very efficiently can be eliminated. The body can be shipped, and the possibility of producing and shipping powder in which only certain powders are not mixed can be effectively avoided.

[Brief description of drawings]

FIG. 1 is a schematic diagram schematically showing an overall configuration of a powder mixing and shipping apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic diagram schematically showing a configuration of an E powder tank.

FIG. 3 is a cross-sectional view showing a specific example of a powder amount measuring device.

FIG. 4 is a schematic diagram schematically showing a state before the powder amount in the powder tank is measured by the powder amount measuring device shown in FIG.

5 is a schematic diagram schematically showing a state before the powder amount measuring device shown in FIG. 3 is driven and the weight comes into contact with the powder.

6 is a schematic diagram schematically showing a state in which a weight constituting the powder amount measuring device shown in FIG. 3 is in contact with powder.

FIG. 7 is a block diagram showing an electrical connection relationship of each device constituting the powder mixing and shipping device.

FIG. 8 is a flowchart showing each operation when a powder is loaded into each powder tank by the powder mixing and shipping apparatus.

FIG. 9 is a flowchart showing each operation when measuring the amount of powder put in each powder tank by the powder mixing and shipping device.

FIG. 10 is a flowchart showing each operation in the case where the powder mixing / shipping device discharges the powder from each powder tank, mixes the powders, and then ships the powders.

11 is a flowchart showing each operation when the powder mixing / shipping device discharges the powder from each powder tank, mixes and then ships the powder, and is a flowchart following the flowchart shown in FIG. .

FIG. 12 is a flowchart showing each operation when a return operation is performed by the powder mixing and shipping apparatus.

FIG. 13 is a flowchart showing each operation when a return operation is performed by the powder mixing and shipping apparatus, which is a flowchart following the flowchart shown in FIG. 12;

FIG. 14 is a schematic view schematically showing a main part of another example of the void detection device.

FIG. 15 is a schematic diagram schematically showing a conventional powder mixing and shipping device.

[Explanation of symbols]

 1 Powder Mixing Processing Device 3, 4, 5, 6, 7 1st to 5th Pipe Lines 8 Upper Limit Level Detection Device 9,96 Powder Quantity Measuring Device 10 Porosity Detection Device 11, 12, 13, 14, 15 A To E powder tank 16 agitator conveyor 17, 18, 19, 20, 21, discharge device 22, 23, 24 first to third shifter 22a, 23a discharge pipe 35, 36, 37, 38, 39 dehumidifier 83 central Processing unit (CPU) 84 Speed controller (inverter) 85 Meter P Powder T Shipping truck

Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display area B65G 65/30 B

Claims (4)

[Claims] 1. A plurality of powder tanks, a plurality of pipelines for supplying powder into the powder tanks, a mixing device connected to the plurality of powder tanks, and a plurality of powder tanks respectively. A plurality of discharging devices for discharging the powder into the mixing device and a discharging part for discharging and shipping the powder in the mixing device are provided, and a dehumidifying device is connected to at least the plurality of pipelines. A powder mixing and shipping device, characterized in that the dry air from the dehumidifying device can be blown into the pipeline. 2. A plurality of powder tanks, a plurality of pipelines for supplying powder into the powder tanks, a mixing device connected to the plurality of powder tanks, and a plurality of powder tanks respectively. A plurality of discharging devices for discharging the powder into the mixing device and a discharging part for discharging and shipping the powder in the mixing device are provided, and each of the powder tanks is charged into the powder tank. Powder mixing shipment, comprising: an upper limit level detecting device for detecting that the powder to be filled is full, and a powder amount measuring device for measuring the powder amount in the powder tank. apparatus. 3. A plurality of powder tanks, a plurality of pipelines for supplying powder into the powder tanks, a mixing device connected to the plurality of powder tanks, and a plurality of powder tanks respectively. The powder tank is provided with a plurality of discharging devices for discharging the powder into the mixing device, and a discharging part for discharging and shipping the powder in the mixing device. A powder mixing and shipping device comprising a void detection device for detecting the occurrence of a void in the bottom direction of the powder. 4. A plurality of powder tanks, a powder amount measuring means for detecting the amount of each powder charged in the plurality of powder tanks, and a mixing device connected to the plurality of powder tanks. , A plurality of discharge devices for discharging powder from each of the plurality of powder tanks into the mixing device, and detecting the occurrence of a void when the powder tank is in the bottom direction while the discharge device is driven. A void generation detecting means, a shipping amount storage means for storing the number of a specific powder tank into which the powder to be mixed is put, and the discharge amount of each powder to be mixed, and the amount of the shipped powder. Which is connected to the powder amount measuring means, the mixing device, the discharging device and the void generation detecting means, and the discharge signal is output by the output signal from the shipment amount storing means and the output signal from the measuring device. Controls drive of the device and detects signal from void detection means And a control means for stopping and controlling the driving of the discharging device according to the present invention.