JP2577104B2 - Method and apparatus for producing multi-component powder fired material - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method and an apparatus for producing a multi-component powder fired material represented by a superconducting ceramic substance.

[Prior art] Conventionally, when manufacturing ceramics such as superconducting materials,
Using an electronic burr, etc. for each material to be mixed, after mixing by hand, put the prepared mixture into a sample pot, place the sample pot by hand on a pair of drive rollers, and use a driving device for a predetermined time. After rotating and mixing, all of the extremely large number of steps from baking to preparation for measurement of the test piece and storage of the sample have been performed while relying on humans.

[Problems to be Solved by the Invention] In the conventional manufacturing method described above, when a multi-component powder fired material representing a superconducting material is to be manufactured due to manual labor, an extremely large number of samples are required as the number of samples to be manufactured increases. Need more people and spend more days, thus increasing costs. In addition, there is a drawback that the quality varies greatly due to differences in the degree of individual learning. In addition, serious confusion is likely to occur because a large number of specimens having various formulations (compositions) are handled.

In view of the above-mentioned drawbacks, the present invention solves the above-mentioned problems by automatically producing test pieces from multi-component powder (starting) materials of various compositions typified by superconducting materials with little variation in quality without human intervention. An object of the present invention is to provide a method and an apparatus for producing a multi-component powder fired material that can be solved.

[Means for Solving the Problems] The method for producing a multi-component powder fired material according to the present invention is a method for producing powdered various materials that are to be supplied with a conveyor and that are to be made of a superconducting substance or the like in a pot with a lid removed. A measuring step of automatically supplying a predetermined amount of balls and a predetermined amount of volatile liquid into the pot after the measuring step is completed, and then sealing the pot with a lid, A mixing preparation step of reading the appended first code and storing the read first code and the content of the material supplied in the weighing step in a storage device in a corresponding manner; A mixing step of mixing the contents of the pot by exercising, and opening the pot lid after the mixing step, removing only the balls with a sieve, and transferring only the combined contents to a receiver, and displaying on the receiver. The second code It reads the first
A ball removing step of storing the correspondence with the code of the above, a drying step of heating the receiver after the ball removing step and drying the contents, and dispensing a predetermined amount of the material as the contents from the receiver after the drying step. A press molding process into a pellet by a mold, and a temporary molding process of storing the material content of the pellet in accordance with a second code. Preferably, the measuring process includes a step of disposing a lid on an electronic measuring device. Are sequentially fed to the hopper supporting means, and each weighing hopper, which is vertically attached to a predetermined position and holds each type of material powder, is sequentially moved to the weighing position, and from each popper to the inside of the pot. And dropping while weighing the various materials by the electronic measuring device by the weight specified by the control unit, and removing the balls with a sieve in the ball removing step. Then, open the contents of the pot on a sieve detachably mounted on the receiver, spray the volatile liquid on the sieve while shaking the lid with the receiver and sieve assembled (spraying) ), Open the lid and remove the sieve containing the balls.

Further, in the method for producing a multi-component powder fired material of the present invention, after the provisional molding step of claim 1, the pellets formed and conveyed in the provisional molding step are automatically supplied to the sintering furnace. Temporary sintering step for sintering, a crushing step for crushing the pellets after the tentative sintering step with an automatic crusher, and a main molding step for press-forming the material crushed in the crushing step with a mold,
A main firing step of main firing the pellets formed in the main forming step and transferring the pellets to the measuring step.

On the other hand, the apparatus for producing a multi-component powder fired material of the present invention automatically supplies a predetermined amount of various powdery materials, which are to constitute a superconducting substance, into a pot with a lid removed, which is sequentially supplied by a conveyor. After automatically supplying a predetermined number of balls and a predetermined amount of volatile liquid into the pot after the completion of the measuring step, the pot is closed with a lid, and the first code attached to the lid is Mixing preparation means for reading and reading the read first code and the content of the material supplied in the weighing step in a storage device, and after the mixing preparation step, moving the pot to move the contents of the pot A mixing means for mixing the mixture, opening the lid of the pot after the mixing step, transferring only the combined contents to a receiver while removing the balls with a sieve, and reading the second code displayed on the receiver. , First
Ball removing means for storing the correspondence to the code of the above, drying means for heating the receiver after the ball removing step and drying the contents, and dispensing a predetermined amount of the material as the contents from the receiver after the drying step. And a temporary forming means for storing the material content of the pellet in correspondence with a second code while press-molding into a pellet by a mold. Preferably, the measuring means has a lid on an electronic measuring device. The pots are sequentially supplied to the hopper support means and the weighing hoppers vertically attached to the hopper supporting means at predetermined positions and holding the various material powders are sequentially moved to the weighing positions, and the hoppers from each hopper are moved from the hopper to the hopper. Means for measuring and dropping the various materials by the electronic measuring device by the weight specified by the control unit, and the ball removing means is used in the ball removing step by this means. When removing the ball with a sieve, open the contents of the pot on a sieve that is removably assembled on the receiver, and shake the lid while the receiver and sieve are still attached, while shaking the lid. After spraying (spraying) a volatile liquid on the surface, there is a means for opening the lid and removing the sieve containing the balls.

Further, after the step of the provisional molding means according to claim 5, the apparatus for producing a multi-element powder fired material of the present invention automatically supplies the pellets formed and conveyed in this step to a sintering furnace, Temporary sintering means for preliminary sintering, crushing means for crushing the pellets after the sintering step with an automatic crusher, main forming means for press-forming the material crushed in the crushing step with a mold, Main firing means for firing the pellets formed in the forming step and transferring to the measuring step.

[Operation] The various quality of various powdery materials are measured by a predetermined amount in a measuring process, and each of the measured many compositions is mixed, and the mixed product is preliminarily formed into a pellet in a temporary forming process. And automatically perform processes with many man-hours. Also, the temporarily formed pellets are automatically supplied to a sintering (firing) furnace, preliminarily sintered, pulverized, molded again, and fired to produce finished pellets.

Example Next, an example of the present invention will be described with reference to the drawings.

Referring to FIGS. 1 and 2, the entire system and the arrangement of the apparatus of the first embodiment to which the method for producing a multi-component powder fired material of the present invention is applied can be understood. Each part of the system will be described sequentially with reference to FIGS.

The weighing unit 10 and the mixing preparation unit 11 will be described with reference to FIGS. 3, 4, and 5.

First, the weighing unit 10 will be described. A sample pot 101 (cylindrical can) with the lid removed is prepared (step S).
31), it is supplied to the weighing device for multi-component powder by the pot supply conveyor 102 (step S32). From a container housing the material various elements which is previously prepared, weigh hopper 109 ₁ each material respectively, 109 _2, ~, transferred to 109 ₅ (step S33, S34). Next, the weighing hoppers containing the respective materials are set on the turntable 108 of the weighing unit 10. When these preparations are completed, each material is weighed (step S36), and when the weighing is completed, the pot 101 is transferred to the mixing preparation unit 11 (step S37).

The weighing step (Step S36) will be described in more detail.

A sample pot 101 having an open top without a lid is transported to a pot supply conveyor 102, and a stopper 103 is provided.
Has been stopped at. An electronic weighing device 10 is located at the first specified position.
5 are arranged. If there is nothing on the electronic weighing device 105, the two-stage feed cylinder
A sample pot 104 is set on the electronic weighing device 105 when one of the sample pots 101 conveyed when the stopper 103 is released and a notification of the weighing pass is received from the control unit. 1. Extrude 101 onto a main conveyor 123 having two parallel belts. When the notification of the weighing failure is received, the cylinder 107 pushes the sample pot on the electronic weighing device 105 onto the defective product conveyor 106 and conveys it to the defective product storage (not shown). Weighing hopper 109 ₁ preferably at equal angular intervals in a predetermined position on preferably a predetermined radius from the center circumference to the turntable 108, 109 _2, ~, 109 ₅ are set vertically. When each central hopper is rotated, each weighing hopper drops the held material in proportion to the amount of rotation. There are big and small weighing hoppers depending on the raw material,
Each predetermined position on the turntable is designed so that a hopper of any size can be arranged. When instructed by the control unit, the turntable rotating device 110 causes each weighing hopper to move to the first position.
Are sequentially stopped for a predetermined time on the electronic weighing device 105 at the specified position. The hopper driving device 111 has a center pole 111
₁ and an arm 111 ₂ fixed to the center pole 111 ₁ , and a driving unit 111 ₃ fixed to the tip of the arm 111 ₂ , and each weighing hopper is moved to the first specified position when instructed by the control unit. each stop, the center pole 111 ₁ is lowered, the central axis of each weighing hopper driving unit 111 _3, preferably a brush-like, moving the center axis of the shape of the screw feeder shaped like, preferably a predetermined angular rotation, or Tokoro It is driven by quantitative vibration. In accordance with the amount driven by rotation or the like, the material (material for producing a multi-component powder firing material including a superconducting material) contained in each weighing hopper falls from each weighing hopper at the first specified position. Is stored in the sample pot of the electronic weighing device 5. The stored amount is weighed by the electronic weighing device 5 each time it is stored,
The control unit checks whether the specified amount matches the specified amount.If all the materials from each weighing hopper match the specified amount within the allowable range, a weighing pass notification is issued from the weighing hopper, and if not, the weighing rejection notification is issued from the control unit. .

When one raw material component is excessively charged into the pot, the components weighed after the excess component are increased by an amount corresponding to the excess amount, and the amount of the additional component is metered in, and the excess component is added before the excess component. For the weighed components, a command is issued from the control unit to re-weigh the increased amount corresponding to the excess amount, and it is possible to prevent the raw material loss from being increased by issuing a rejection notification to others.

 Next, the mixing preparation unit 11 will be described.

Reference ethanol is prepared as shown in FIG.
The mixing balls are supplied to the tank 15 in advance (step S41), and the mixing balls are supplied to the ball hopper 116 (step S4).
3). Lid bar code is attached in step S46 by the bar code issuing machine, the cover stocker 120 in Step S47 ₄ (5
(Fig.)

When the weighing unit 10 passes the weighing, stores a predetermined amount of the material, and supports the two ends of the bottom surface with the two belts of the main conveyor 23, respectively, the sample pot 101 is conveyed.
19 stops at the second specified position, and step S42 starts. In step S42, the dispenser 114 is an alcohol tank 115 in which the sample pot 101 receives an instruction from the control unit detected by the position sensor 117 ₁ that came second defined position,
Typically, ethanol is lightly sprayed into the sample pot 101, and sprayed again when the next instruction is given. When the control unit notifies the control unit that the first application of the dispenser 114 has been completed, step S44 is started, and the ball stopper 118 removes the ball stored in the ball hopper 116 from the sample pot. It is dropped into the 101 ball predetermined number through the sensor 117 ₂ receives an instruction from the control unit detects that the dropped and stops falling of the ball. The stopper 119 releases the stop of the sample pot 101 when notified from the control device that the second alcohol spraying of the dispenser 114 after the supply of the ball is completed. Since the raw material powder is wetted by the first alcohol spraying, scattering of the powder and alcohol at the time of throwing the ball is prevented. Therefore, in the first spraying, an appropriate spray or the like is preferably used so as to be evenly sprayed on the raw material powder. Sample pot 101 conveyed by main conveyor 123 from the second specified position
, In the third prescribed position, it is stopped by the lever 121 _first positioning and fixing device 121. That the sample pot 101 is stopped in the third prescribed position is detected to the control device via the position sensor 117 _3, lever 121 ₂ was not in the transport path of the sample pot is driven far, the lever 121 ₁ In cooperation, the sample pot 101 is sandwiched and fixed. The control device that has detected that the fixing has been completed issues an instruction to start the lid tightening process in step S48, and the lid tightening robot 120 starts. Futashime robot 120, center pole 120 _1, an arm 120 ₂ fixed to the center pole, the lid clamping section 120 ₃ attached to the distal end of the arm, the lid supplying lid portion with lid fastening stocker 120 _{And 4} . Futashime robot 120 instructs the lid stocker 120 ₄ to supply one by one the lid just below the lid clamping received 120 _3. When the lid is supplied, the lid tightening robot lowers the center pole 120 ₁ , holds the lid with the three fingers at the lower end of the lid tightening section 120 ₃ , rotates the center pole 120 ₁ , and tightens the lid. the section 120 ₃ is positioned just above the third predetermined position, further lowering the center pole 120 _1, by rotating the lid the lid is fixed to the top of the sample pot 101 to the lid clamping section 120 _3, 3 Release the finger, lift the center pole 120 ₁ and rotate it to tighten the lid
120 ₃ Return to the original position. When the lid tightening is completed, the levers 121 ₁ and 121 ₂ of the positioning and fixing device 121 are opened, and the tightened sample pot 101 with the lid is further transported by the main conveyor 123. After passing through the sample pot 101, the lever 121 ₁ is moved to the main conveyor 123.
Will be back again.

Instruction should start step S49 from the control unit to the sample pot 101 with lid was detected via the position sensor 117 ₄ that has reached a fourth predetermined position is issued, based on the instruction, the rotating device 122 The sample pot 101 with a lid is lifted by a shaft that rises between the two belts of the main conveyor 123, floated from the main conveyor 123 and rotated, and by signal reading means represented by a bar code reader 124,
After the identification signal such as a bar code or the display means on the lid of the sample pot 101 is read, the sample pot with the lid is read again.
101 is placed on the main conveyor 123 and transported to the subsequent process. At the time of the reading, the correspondence of the content composition of each bar code or the like is returned to the control unit and stored.

The opening of the pot has an outer diameter smaller than the outer diameter of the main part of the pot, and if the so-called shouldered structure is made thinner from the main part in the pot to the opening, the pot is rotated in a horizontally inclined posture. Mixing the contents is preferable because the bleeding of the contents is small.

Also, if the inner surface of the hopper, pot, lid, and the outer surface of the ball are made of resin such as polyethylene, polypropylene, fluororesin, polyimide resin, etc., raw powders of various minerals are abraded powder from these surfaces, and these surfaces are made of resin. This is preferable because it is not covered with a material and is less likely to be contaminated than, for example, metal or ceramic. Even if the organic resin material powder is mixed, the powder is eventually dissipated in the preliminary calcination or main calcination in the subsequent stage, so that contamination is less likely to occur.

In this embodiment, the turntable 108 is attached to the hopper support means.
However, it is clear that a straight type may be used.

Next, FIGS. 6 and 7 (a), (b), (c),
(D) The mixing section 20 will be described with reference to FIG.

First, the structure of the mixing device used in the mixing section 20 will be described.

The roller-mounted shaft 207 has a large number of rubber rollers 204 whose surfaces are preferably fitted to the shaft 206 at substantially equal intervals, and the shaft 206 is supported by bearings at both ends and fixed to the frame 211. Two shafts with rollers 207 are fixed as a set,
The rotors 204 are arranged to face each other with a substantially constant interval. The horizontal and right-angled two-axis transfer device 201 is a frame moving the vertical moving device 202 to which the robot hand 203 is attached
The sheet is conveyed in the X-axis and Y-axis directions that intersect at right angles on the shaft with roller 207 attached to the 211. Robot hand
When the sample pot 101 is placed on a pair of rollers 204 facing each other and rotated, the holding clamper 205
Sample pot 101 is rotated and lowered so as not to protrude from its normal position, the two pressing rollers 205 ₁ comes on the sample pot 101. Pressing roller 205 ₁ is preferably not touch the pot at the pressing position of the normal, less driving power loss, etc. to touch the only pot 101 when the uplink such as jumping pot preferred.

One of a pair of shafts 207 with rollers is driven from a driving device 212 via a belt 213 and the other is preferably a roller 2.
Idle gear 2 provided between 04 or shaft 206
Driven through 09, the sample pot on the roller 204 is rotated to mix various materials in the sample pot. Drive
A motor 212 and a continuously variable transmission are built in, and the rotation speed can be adjusted from the outside by a speed adjustment handle 214. The control unit 219 controls the horizontal right-angled two-axis transfer robot 201 and the like according to a program.

In this embodiment, four sets of shafts with rolls 207 are mounted, and each set of shafts with rollers 207 can rotate five sample pots 101. This is for disposing the sample pot 110 in a substantially square shape and minimizing the amount of movement of the robot hand 203.

Since the mixing unit 20 uses the above-described mixing device, it operates as follows.

The mixture is transported from the mixing preparation section 11 to the main conveyor 123, and the pot 1
When the control unit 219 detects that the 01 has reached the stopper 202 by the position sensor provided in the stopper 220, it instructs the horizontal right-angled two-axis transfer robot 201, the vertical moving device 202, and the robot hand 203, and Sample pot 41
Grabbing 0, the predetermined opposing roller 204 on which nothing is placed
Bring on top. (Step S51 in FIG. 8) The rotation of the shaft with roller 207 to which the corresponding roller 204 is attached is stopped, the sample pot 101 is placed on the opposing roller 204, and the robot hand 203 is raised and returned. Note that the robot hand 203 moves the pot 101 from the vertical position to the horizontal position parallel to the rotation axis of the roller between the time when the robot hand 203 is grasped and the time when the robot hand is brought over the roller pair.
ハ ン ド Rotated, the hand returns again so that it can grab the vertical pot on the main conveyor 123 before placing the pot 101 on the roller pair and before grabbing the pot placed on the next roller pair. Let me do. After raising the robot hand 203, a presser clamper 205 is lowered rotating the sample pot to come presser roller 205 ₁ on the sample pot so as not to jump out. The driving device 212 is started to rotate the shaft with roller 207 to mix the contents of the pot 101 with the help of a ball. When the individual sample pots 101 are rotated by the rollers 204 for a preset integration time, the driving device 212 is stopped, and the holding clamper 205 is rotated upward to release the holding of the sample pot 101 (step S5).
2). The robot hand 203 is moved onto the sample pot 101 in a procedure substantially opposite to the procedure at the time of mounting, and the sample pot 101 is moved to the discharge conveyor 221 (step S53).

The holding clamper 205 is, for example, a guide pin attached to a clamper shaft 205A that is inserted into the support tube 205T as shown in FIG. 7 (b).
205P and guide lot 205U engaged with it and given to support 205T
And vertically and horizontally by the action of a clamper vertical means (not shown).

Next, the separation preparing section 21 and the ball separating section 22 will be described with reference to FIGS. 9, 10, 11, and 12. FIG.

When the pot 101 is conveyed from the mixing unit 20 by the discharge conveyor 221 (Step S61 in FIG. 9), the pot 101 is detected by the sensor 301, and the robot 302 grasps the pot 101,
It is set in the opening device 303 of the separation preparation section 21. At this time, the bar god on the lid of the pot 101 is read by the bar code reader 304 (step S62). The read bar god is temporarily stored in a control storage unit (not shown), and is read out with a bar god of a ball separating unit receiver described later. Is recorded.
In step S63, the pot 101 is detected by the position sensor in the plug opening unit 303, and the pot fixing device fixes the pot 101 according to an instruction from the control unit. At the instruction of the control unit, the finger portion of the automatic opening machine descends, chucks the lid, reversely rotates and opens the lid, and in step S63, the finger portion with the lid rises and turns, and the upper portion of the collection container 306 of the lid is rotated. Then, the finger part is opened and dropped into the collection container 307, and sent to the disposal work process of step S64.

On the other hand, the shelves 305 of the ball separator 22, the upper is receptor 306 ₁ bottom dated refractory barcode screen 306 _0,
An assembly receiver 306 that is assembled so as to be vertically separable is prepared in advance by a transfer robot (not shown). On the vibration table 310, one assembly receiver 306 transferred from the shelf 305 by the robot 302 is set. When it is set, the bar code of the receptor 306 ₁ is read by the barcode reader 314 (step S65).

When the opening of the lid opener 303 is completed, the robot 302 takes the pot 101 without the lid from the lid opener 303 and moves to the ball separating unit 22 (step S66). The pot 101 is inverted on the assembly receiver 306 already set on the vibration table 310 to empty the contents (step S67). The washing nozzle 312 of the washing machine 311 enters the mouth of the pot 101 held by the robot in a reversed state from below, and the inside of the pot 101 is spray-washed with alcohol from the tank 313, and then the nozzle 312 is retracted and washed. The dropped pot 101 is dropped into the pot collection container 315 (step S70). Next, in step S68, the upper lid of the sieve is lowered onto the assembly receiver 306, the lid is closed, and the vibration of the vibration table is started. At the same time, alcohol is put on the screen (screen) of the assembly receiver from above the lid. Sprays from a spray nozzle (not shown) at the top of the lid for a set time.
After vibration and spraying stops, the lower portion of the receptacle 306 ₁ is fixed by the fixing device. Robot 302 balls in to remove the screen 306 ₀ at the top of the assembled receptacle 306 were charged into a ball collection container 316, it returns the screen 306 ₀ to the position of the under shelf 305 (step S71). Receptor 306 _{1 for} assembly receiver 306
Is released from the fixing device, transferred to a conveyor by the robot 302, and transported to a subsequent process (step S72).

Next, a part of FIG. 11 and FIGS. 12 and 13 (a) and (b)
The drying unit 23 will be described with reference to FIGS.

Receptor 306 ₁ from the robot 302 is moved to the predetermined position P, it is positioned by the positioning device by a conveyor 320 (step S73). The positioned receptacle 306 _1, the robot 401 is set to a hole of a predetermined position of the 13 transferred to dryer entrance 402 of Figure turntable 410 (step S74). In the dryer, the alcohol content mixed in the mixing preparation unit 11 and the ball separation unit 21 is evaporated within a predetermined time by heating, depressurizing, or the like as described in detail sequentially (step S75). A turntable 410 that rotates by a predetermined angle in accordance with a command signal is provided in a drying chamber 400 surrounded by a heat insulating material. The turntable 410 holes are set receptacle 306 ₁ at a predetermined angle on the same circumference are provided. Immediately below the specified position of this hole, a circular heater
The heaters 420 are attached to each of the eyashida, and these heaters 420 can be independently controlled on and off. An air nozzle 433 for blowing hot air is disposed on the turntable 410 so as to face the heater 420. Air heated by an air heater 430 is sent from an air inlet 435 to the air nozzle 433 via a duct 432 by a nozzle blower 431. From the air heater 430, hot air is further sent below the turntable 410 via a duct 434. Receptor at doorway 402
When ₃₀₆₁ is out, a door 442 that isolate the entrance 401 and the drying chamber 400 is opened and closed by an air cylinder 441. Of whether the contents of the receptacle 306 ₁ is dried determined at a temperature sensor provided on the turntable, the bottom surface temperature of the evaporator after completion receptacle 306 ₁ is performed by detecting that the rises sharply. After evaporation of the alcohol, the receptacle 306 ₁ after the entrance 402 completes the robot 401 is dry extraction (step S
76), and put on the conveyor 320 and transported to the next process (step S77).

The barcode is read on the conveyor 320 for confirmation (step S77). The read such as when the flow of the receptor 306 ₁ in not essential dryer is rotary, who performed may be prevented from error. The progression in the dryer 23 states, particularly feedback receiver 306 ₁ receivable state to the mixing section, prompting the progress of the mixing section 20.

 The temporary forming preparation unit 30 will be described with reference to FIG.

Completing the drying receptacle 306 ₁ is conveyed by the conveyor 320 (step S81). New scraping blades are set in the sample powder scraper in advance (step S82). Transported receptor 306 ₁ has is positioned and fixed on the conveyor 320, receptacle 306 in ₁ with blades for scraping, generally are scraping (step S83). That adhesion of powder to the inner wall of the receptacle 306 ₁ is released. The used blades are replaced again with new blades by means of a device with an automatic exchangeable supply.

 The temporary forming section 31 will be described with reference to FIG.

Receptor 306 ₁ whose entire inside has been scraped from temporary forming preparation unit 30 ₁
There Once supplied, receptor 306 ₁ proceeds positioned on the conveyor with reversing device (step S87) hopper immediately above (step S85). After receiving 306 ₁ were transferred to the contained object in a hopper is inverted and collected in a predetermined position. The empty hopper is previously prepared and aligned with the hopper feeder by usual means (step S86). The filled hopper is transferred to a temporary molding machine and positioned (step S88). The weighing feeder automatically weighs and cuts out the sample (step S89). When a predetermined cutting operation is started, the cutting of the molding machine, which is usually a press, into a mold, molding, taking out of a sample of the molded body, receiving in a tray of an orthogonal robot, and cleaning of a take-out part by a vacuum device are repeated, and Is performed (step S90). A tray to which a barcode or the like is given in advance is usually prepared in advance on a robot table manually (step S91). After the molding, the filled trays, which have received a predetermined number of molded bodies of the same composition, are automatically transferred from the robot table, and the barcode or the like is read on the conveyor (Step S92). The trays are then sorted into 1) storage trays, 2) waste trays, and 3) pre-sintering trays. One or a predetermined small number of the initial shots are placed in the waste tray to prevent contamination due to the previous molding composition, and the necessary number in consideration of the loss is placed in the pre-sintering tray. Alumina powder or the like is laid beforehand on the inner bottom surface of the pre-sintering or other tray to prevent seizure, and prevents the molded body from being seized on the tray during pre-sintering.

When moving the pre-sintering tray or the preservation and disposal tray into which the molded product pieces of the same composition have been placed, for example, as shown in Figs. 16 (a) and (b), about 10 It is efficient to collectively place and move them on a large tray (the former tray is called a small tray with respect to the large tray). Usually, seizure prevention is not performed between the large tray and the small tray. The anti-seizure material and the large tray are used in the same manner as in the case of the temporary sintering part 32 with respect to the main sintering part 35 described later.

The case where the preformed superconducting ceramic material or the like is transferred from the preforming section 31 to the sample storage section 40 will be described with reference to FIG.

The tray conveyed from the temporary forming section 31 is stored in the sample storage section 40.
(Step S100). During this time, the barcode or the like of the tray is read by a barcode reader or the like on the conveyor, and the composition, the tray and the correspondence are recorded. Thereafter, when the tray is conveyed to the takeout instruction device, the sample is taken out here (step S101), inserted into a storage container with a barcode and stored (step S1).
02). In the various steps described below, barcodes and the like of trays and containers are all processed in the same manner as described above in order to correspond the barcodes and the like to the composition of the sample on or in which they are placed. ) Is used by automatically performing central control, recording, recording in an instruction section, collation of correspondence between barcodes based on the record, instruction to each section, and the like.

Next, the case where the superconducting material temporarily formed is transferred from the temporarily formed portion 31 to the temporarily sintered portion 32 will be described with reference to FIG.

When the tray is conveyed to the pre-sintering section 32 by the transfer conveyor, the tray transferred to the pre-sintering section of the pre-forming section 31 is conveyed to the pre-sintering section. The sintering furnaces A and B are transferred to the upper surfaces of the furnace bottoms (step S110). When the tray is placed in the furnace,
The sintering furnace door is automatically opened and closed. When calcination is completed in the pre-sintering furnace (step S111), the pre-sintering furnace automatically opens and closes the door and places the tray in the furnace. The door is automatically opened and closed again, and the tray is taken out of the furnace by the robot and placed on the conveyor in the subsequent process. Is moved to (Step S112). When transported on a conveyor,
A barcode or the like is read (step S113).

 The crushing unit 33 will be described with reference to FIG.

The tray transferred on the conveyor of the pre-sintering section 32
After being conveyed to the crushing unit 33, the trays are aligned by the aligning robot in the crushing unit (step S121), and the small robot is taken out and transferred to a container by the takeout robot (step S122). At the time of transfer, it may be necessary to remove the alumina powder or the like from the compact taken out from the small tray by air suction or air blow before transferring it to the container. The anti-seizure powder remaining on the small tray is collected by rotation of the small tray by a robot, vacuum suction, etc., and collected in a collection container (step
S123). The empty small tray and large tray are collected and collected by a collecting means (not shown). The sample is filled into the automatic pulverizer and pulverized from the container put in step S122 (step S125). The pulverized sample is transferred to a collection container using a hopper (step S126). After the hopper reads and records the barcode or the like by a barcode reader or the like, the hopper is moved and conveyed by a conveyor to a subsequent process (step S127).

 With reference to FIG. 20, the main molding section 34 will be described.

The hopper transferred on the conveyor of the crushing unit 33,
When the hopper is conveyed to the main forming section 34, the hopper is transferred to the main forming machine by the transfer mechanism in the main forming section (step
S130). The weighing feeder automatically controls the weighing and cutting out of the sample (Step S131). As described above, cutting and molding into a mold of a molding machine (Step S132), taking out of a sample by a take-out robot (Step S133), receiving into a tray by an orthogonal robot (Step S134), and cleaning of a take-out part by a vacuum device are already described. A predetermined number of moldings are performed in the same manner as the temporary molding. The tray is manually prepared on the robot table in advance. After the molding, the filling tray is automatically transferred from the robot table (step S135), and a barcode or the like is read on the transport conveyor, and is sorted into a storage tray, a disposal tray, and a main sintering tray. The sorting, the use of the seizure prevention material, the use of the large and small trays, and the like are the same as those in the above-mentioned temporary molding. The main sintering tray is transported to the next step (step S136).

The case of being transferred from the main molding section 34 to the sample storage section 41 will be described with reference to FIG.

The tray conveyed from the main forming section 34 is placed on a conveyor at a predetermined position. The tray on which the bar code or the like is read by a bar code reader or the like on the conveyor and the correspondence between the composition of the molded product and the tray is recorded is conveyed to a take-out instruction position (step S149), where the sample is taken out (step S149). (Step S141), it is inserted into the storage container with the barcode (step S142), and the barcode is read (step S143).

The case of transferring from the main forming section 34 to the main sintering section 35 will be described with reference to FIG.

The tray transferred to the conveyor of the main forming section 34 is transferred to the main sintering section 35. Next, the tray is transferred onto a fork in front of the main sintering furnaces J, K, to N represented by a tubular furnace by an autoloader (step S144). In this main sintering furnace, the door automatically opens and closes, and the tray on the fork is automatically inserted and drawn out into the furnace core tube for main firing (step S14).
Five). After the main firing, the door automatically opens and closes again, and the tray is taken out of the furnace by the automatic insertion / drawing device, and transferred to the subsequent process conveyor by the autoloader (step S1).
46) The bar code or the like is read on the conveyor and is conveyed to the next process (step S147).

 The measurement preparation unit 36 will be described with reference to FIG.

The tray transferred on the conveyor of the main sintering unit 35 is transferred to the measurement preparation unit 36. It stops at a predetermined position (step S150), and the sample is conveyed on a conveyor for measurement and sample storage. Printing, labeling, reading, recording, and the like of a barcode and the like are performed on a tray containing a sample to be transported for measurement at a required position in the middle. At the time of removing the sample to be stored (step S151), the same alumina as described in the pulverizing section of FIG.
Large and small trays are collected, alumina is removed from the sample, etc.

 A second embodiment will be described with reference to FIG.

In the present embodiment, the steps of the temporary forming section 31, the temporary sintering section 32, and the pulverizing section 33 are repeatedly performed, and then the process proceeds to the steps after the main forming section.

Further, as a third embodiment, the temporary forming part 31, the temporary sintering part
32, the crushing unit 33 may be omitted (bypassed) and the temporary forming preparation unit may be directly transferred to the main forming unit 34 as a forming preparation unit. The portions indicated by the dotted arrow and the double arrow in the block diagram showing the embodiment do not hinder the reduction or elimination of the problems of the prior art, even if performed manually or by humans.

[Effects of the Invention] As described above, the present invention automatically performs the process with the most variability in quality until the temporary molding of the various powdery materials and the mixture into the pellets in the temporary molding process, and a large number of man-hours. By doing so, there is an effect that multiple types and a large amount of pellets can be efficiently manufactured by eliminating the quality variation by hand, and furthermore, the process from the temporary molding process to the main firing process is automated, and the finished pellets with stable quality are obtained. There is an effect that the production can be performed efficiently, and furthermore, there is an effect that a characteristic test of a superconducting material or the like can be accurately performed in a short time.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the entire system and apparatus of a first embodiment to which the method for producing a multi-component powder fired material of the present invention is applied. FIG. 2 is a layout diagram showing the arrangement of the system and the entire apparatus shown in FIG. FIG. 3 is a block diagram showing each step of the weighing unit 10. FIG. 4 is a block diagram showing each step of the mixing preparation unit 11. FIG. 5 is a configuration diagram showing a manufacturing apparatus used in the weighing unit 10 and the mixing preparation unit 11. FIG. 6 is a configuration diagram showing a manufacturing apparatus (ball mill type) used in the mixing section 20. 7 (a), (c) and (d) are a plan view, an elevation view and a side view, respectively, of the manufacturing apparatus of FIG. FIG. 7 (b) is a partially enlarged view of the manufacturing apparatus of FIG. FIG. 8 is a block diagram showing the operation of the robot of the mixing section 20. FIG. 9 is a block diagram showing each step of the separation preparation section 21. FIG. 10 is a block diagram showing each step of the ball separating section 22. FIG. 11 is a configuration diagram showing a device used in the separation preparing section 21 and the ball separating section 22 (FIG. 11 (a) is a plan view, FIG.
FIG. 11 (b) is a front view. FIG. 12 is a block diagram showing each step of the drying unit 23. FIG. 13 is a configuration diagram showing an apparatus used for the drying unit 23 (FIG. 13 (a) is a plan view, and FIG. 13 (b) is a front view). FIG. 14 is a block diagram showing each step of the temporary forming preparation unit 30. FIG. 15 is a block diagram showing each step of the temporary forming section 31. FIG. 16 is a view showing a tray used in the temporary forming section (FIG. 16 (a) is a plan view, FIG. 16 (b) is FIG. 16 (a)
Cross-sectional view taken along the line cc). FIG. 17 is a block diagram showing each step of the sample storage unit 40. FIG. 18 is a block diagram showing each step of the temporary sintering section 32. FIG. 19 is a block diagram showing each step of the crushing unit 33. FIG. 20 is a block diagram showing each step of the main forming section. FIG. 21 is a block diagram showing each step of the sample storage unit 41. FIG. 22 is a block diagram showing each step of the main sintering unit 35. FIG. 23 is a block diagram showing each step of the measurement preparation unit 36 and the sample storage unit 42. FIG. 24 is a block diagram showing a second embodiment. 10: Weighing unit, 11: Mixing unit, 20: Mixing unit, 21: Separation preparation unit, 22: Ball separation unit, 23: Drying unit, 30: Temporary molding preparation unit, 31: Temporary Forming part 32 Pre-sintering part 33 Pulverizing part 34 Main forming part 35 Main sintering part 36 Measurement preparation part 40, 41, 42 Sample storage part 101 … Sample pot, 105… Electronic weighing device, 111… Hopper drive device, 116 …… Ball hopper, 120… Lid closing robot, 201 …… Horizontal right-angled 2-axis transport device, 202 …… Vertical movement device, 302,401 …… Robot, 306 …… Assembly receiver, 400 …… Drying room, 410 …… Turntable, 420 …… Heater, 430 …… Air heater, 431,435 …… Blower.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Nao Yamauchi, Inventor 1-14-3 Shinonome, Shinonome, Koto-ku, Tokyo Foundation for Superconductivity Engineering, International Superconducting Technology Research Center (72) Yukio Yamada, Funabashi, Chiba 2599 Komurocho (72) Inventor Masami Onuki 923-29 Kamijiya 29, Okegawa City, Saitama Prefecture (72) Inventor Etsuji Morita 2-32-13 Natsumi, Funabashi City, Chiba Prefecture 1-18-6, Building 104 (72) Inventor Hirohiro Wada 1-333-14, Kamakura, Katsushika-ku, Tokyo (72) Inventor Hirotaka Kusaka 2421 Hayano, Mobara-shi, Chiba (72) Inventor Wataru Ikeda Chiba 1763-1, Kokuracho, Chiba-shi (56) References JP-A-64-59043 (JP, A) JP-A-50-50757 (JP, A) JP-A-61-141921 (JP, A) JP-A 55- 84529 (JP, A)

Claims (8)

(57) [Claims] 1. A measuring step of automatically measuring a predetermined amount of various powdery materials constituting a superconducting substance and the like into a pot with a lid removed sequentially supplied by a conveyor, and completing the measuring step. After automatically supplying a predetermined number of balls and a predetermined amount of volatile liquid into a later pot, the pot is closed with a lid, a first code attached to the lid is read, and the read first code is read. And a mixing preparation step of storing the contents of the materials supplied in the measuring step in a storage device in a corresponding manner. After the mixing preparation step, a mixing step of moving the pot to mix the contents of the pot, Open the lid of the pot after the process, remove only the mixed contents while removing the balls with a sieve, and read the second code displayed on the receiver,
A ball removing step of storing the correspondence with the code of the above, a drying step of heating the receiver after the ball removing step and drying the contents, and dispensing a predetermined amount of the material as the contents from the receiver after the drying step. A method for producing a multi-component powder fired material, comprising: a press molding with a mold to form a pellet; and a temporary molding step of storing the material content of the pellet corresponding to a second code. 2. The weighing step includes the steps of sequentially supplying a pot with a lid removed to an electronic weighing device, and sequentially weighing each of the weighing hoppers mounted on hopper supporting means and holding various material powders. Moving to a weighing position and dropping each material from the respective poppers into the pot by the weight specified by the control unit while weighing the same with the electronic weighing device. Production method. 3. When the balls are removed by a sieve in the ball removing step, the contents of the pot are opened on a sieve detachably mounted on the receiver, and a sieve lid is applied. 2. A method for producing a multi-component powder fired material according to claim 1, wherein the volatile liquid is sprayed on the sieve while being vibrated while the sieve lid is assembled, and then the lid is opened and the sieve containing the balls is removed. Method. 4. A pre-sintering step of automatically supplying the pellets formed and transported in the pre-forming step to a sintering furnace and pre-sintering after the pre-forming step of claim 1. , A crushing step of crushing the pellets after the preliminary sintering step with an automatic crusher, a main forming step of press-forming the material crushed in the crushing step with a mold, and a final firing of the pellets formed in the main forming step. And a main firing step of transferring to a measuring step. 5. A metering means for automatically metering a predetermined amount of various powdery materials constituting a superconducting substance into a pot with a lid removed, which is sequentially fed by a conveyor, and a metering step. After automatically supplying a predetermined number of balls and a predetermined amount of volatile liquid into the subsequent pot, the pot is sealed with a lid, a first code read on the lid, a read first code and Mixing preparation means for storing the contents of the material supplied in the weighing step in a storage device correspondingly; mixing means for moving the pot to mix the contents of the pot after the mixing preparation step; After opening the lid of the pot, removing only the mixed contents to the receiver while removing the balls with a sieve, the second code displayed on the receiver was read, and the first code was read.
Ball removing means for storing the correspondence to the code of the above, drying means for heating the receiver after the ball removing step and drying the contents, and dispensing a predetermined amount of the material as the contents from the receiver after the drying step. An apparatus for producing a multi-component powder fired material, comprising: press molding with a mold into pellets; and provisional molding means for storing the material content of the pellets in accordance with a second code. 6. The weighing means includes means for sequentially supplying the pot with the lid removed to the electronic weighing device, and sequentially weighing each of the weighing hoppers mounted on the hopper supporting means and holding the various material powders. 6. The manufacturing method according to claim 5, further comprising: means for moving to a position and dropping each material from the respective hoppers into the pot by the amount indicated by the control unit while measuring the weight with the electronic measuring device. apparatus. 7. The ball removing means removes the contents of the pot onto a removably mounted sieve on a receiver when the balls are removed by a sieve in the step by this means. Claims having means for removing a sieve containing a ball after spraying a volatile liquid on the sieve while applying a lid and vibrating while assembling a receiver, a sieve and a sieve lid, and then opening the lid. An apparatus for producing a multi-component powder fired material according to claim 5. 8. Temporary sintering in which the pellets formed and transported in the temporary forming step are automatically supplied to a sintering furnace after the temporary forming step of claim 5, and preliminarily sintered. Means, a crushing means for crushing the pellets after the preliminary sintering step with an automatic crusher, a main molding means for press-forming the material crushed in the crushing step with a die, An apparatus for producing a multi-component powder fired material having a main firing means for firing and transferring to a measuring step.