JPH1045460A - Method for interposing silver sand to contact surfaces of green brick briquettes and silver sand adhering device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and device capable of saving manpower as far as possible and making the intervening amt. and distribution of silver sand uniform at the time of interposing the silver sand into the contact surfaces of the green brick briquettes. SOLUTION: In the stage of carrying the green brick briquettes 1 in the state of stacking the green brick briquettes in many stages to a firing stage, glue 2 is applied on at least one of the contact surfaces of the green brick briquettes 1 to be stacked before the green brick briquettes 1 at the time of interposing the silver sand 3 into the contact surfaces of the green brick briquettes 1 to be stacked. The surfaces coated with the glue 2 are brought into contact with the surfaces of the silver sand 3 leveled off in a vessel 31, by which the silver sand 3 is adhered to these surfaces. The green brick briquettes 1 are stacked successively with the surfaces adhered with the silver sand 3 as the contact surfaces.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for interposing silver sand between multiple stacked brick horns when stacking and transporting brick horns into a firing furnace in the manufacture of refractory bricks. .

[0002]

2. Description of the Related Art Generally, when manufacturing refractory bricks, brick horns formed into a predetermined shape (often a rectangular parallelepiped shape) are stacked in a multi-stage manner on a truck, carried into a firing furnace, and fired.
When stacking and firing in this way, between the bogie and the raw angle of the brick, and between the raw surfaces of the vertically overlapping bricks so that they do not weld to each other during firing, between these contact surfaces,
For example, silver sand having a particle size of about 0.5 to 2.0 mm (a welding prevention material such as high-purity magnesia grains or silica sand) is interposed.

Conventionally, as a method of interposing silver sand between the raw brick corners and the bogie, during stacking work, a worker sprays silver sand by hand on the upper surface of the lower brick raw corner or the upper surface of the bogie. The brick angle is placed on the upper surface, and by repeating this, the brick angle is stacked in multiple stages on the carriage while silver sand is interposed between the truck and the contact surface of the upper and lower brick angles. ing.

[0004]

However, in the prior art, the work efficiency was poor because the spraying of silver sand had to be performed manually. In addition, since the work is performed manually, there is a variation in the amount of silver sand sprayed, and as a result, problems such as firing bricks sticking to a trolley or other bricks, warping, and the like occur. was there.

[0005] In consideration of the above circumstances, the present invention can save labor as much as possible when silver sand is interposed between the raw corners of the bricks and the bogie, and furthermore, the intervening amount and distribution of the silver sand are made uniform. It is an object of the present invention to provide a method and an apparatus which can perform the method.

[0006]

According to a first aspect of the present invention, there is provided a method for applying glue to at least one of the contact surfaces of the bricks to be stacked before stacking the bricks. After the silver sand is deposited on the same surface by contacting the surface of the silver sand to be stored at a predetermined location, the bricks are sequentially stacked with the surface on which the silver sand is deposited as a contact surface. . By doing so, it is possible to reduce the variation in the adhesion amount of silver sand to the contact surface of the raw brick corner. In addition, since silver sand can be adhered to the lower surface of the brick angle, the silver angle can be adhered to the lower surface and the brick angle can be simply placed on the upper surface of the lower brick angle, and the contact surface Brick horns can be built up with silver sand in between. Therefore, unlike the case where silver sand is sprayed on the upper surface of the brick raw corner, automation can be easily realized. Claim 2
The invention according to the first aspect is characterized in that, in the invention according to the first aspect, the surface of the silver sand stored at the predetermined location is leveled. According to this method, the adhesion of the silver sand to the predetermined surface of the brick raw corner can be made more uniform.

According to a third aspect of the present invention, there is provided an apparatus for realizing automation, in which a gluing section for applying a glue to a predetermined surface of a brick raw corner, and a silver sand attaching section in which silver sand having a uniform surface is stored in a container. When,
And a handling unit for handling the raw angle of the brick. The handling unit applies glue to a predetermined surface of the raw brick at the gluing unit, and then causes the predetermined surface with the glue to come into contact with the surface of the silver sand of the silver sand attachment unit to adhere silver sand to the same surface. Subsequently, the brick raw corners are sequentially stacked at predetermined positions (multi-stage stacking positions). Thereby, the brick angle can be piled up with silver sand uniformly distributed between the contact surfaces.

According to a fourth aspect of the present invention, there is provided a gluing roller for applying a glue adhered to an outer periphery of the glue roller to a predetermined surface of the brick raw angle by contacting the glue portion with a predetermined surface of the brick raw angle, and And a replenishing unit for refilling the glue. This makes it possible to automatically and continuously apply the glue to a predetermined surface of the raw brick corner. Claim 5
The invention is characterized in that the gluing section is provided with an urging mechanism that urges the gluing roller toward the predetermined surface with a predetermined urging force when a predetermined surface of the raw angle of the brick is pressed against the gluing roller. I have. As a result, it is possible to reduce an impact or the like at the time of contact between the brick angle and the gluing roller. Further, the invention according to claim 6 is characterized in that the silver sand attaching portion includes a scraper for leveling the surface of the silver sand in the container. As a result, the surface of the silver sand becomes flat, and the adhesion of the silver sand to the surface with the glue can be made uniform.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. First, with reference to FIG. 1, a method of interposing silver sand between green bricks and an outline of an apparatus therefor will be described. In FIG. 1, reference numeral 1 denotes a brick raw angle formed into a predetermined shape (a rectangular parallelepiped shape), 6 denotes a robot hand (handling unit), and 8 denotes a bogie. At the time of loading the brick raw corners 1 into a firing furnace (not shown), multi-stacking is currently being performed on the cart 8. At that time, the brick angle 1 stacked vertically
Therefore, it is necessary to interpose silver sand between the contact surfaces and between the brick horn 1 and the carriage 8, and the work is performed in the following procedure.

First, the lower surface (predetermined surface) of the brick raw corner 1 handled by the robot hand 6 is pressed against the upper surface of the gluing roller 23 of the gluing section 5 (movement of arrow A1).
Then, the robot hand 6 is slightly moved in a substantially horizontal direction, and the glue roller 23 is rotated while rotating the glue roller 23.
Is applied to the lower surface of the brick raw corner 1. The glue 2 is liquid and is contained in the container 21, and the supply roller 22 is immersed in the glue 2 by about half. Accordingly, the gluing roller 23 is rotated by the horizontal movement of the brick angle 1, and the replenishing roller 22 in contact therewith rotates, and the glue 2 is supplied from the container 21 to the outer periphery of the gluing roller 23 via the replenishing roller 22. Is done. Here, the container 21 containing the glue 2, the replenishing roller 22, and the glue replenishing bottle 27 constitute a replenishing unit.

After the glue 2 has been applied to the lower surface of the brick raw corner 1 as described above, the robot hand 6 is moved to
The raw angle 1 of the brick is lowered on the surface of the silver sand 3 and the silver sand 3 is attached to the lower surface on which the glue 2 is applied (movement of arrow A2). A dish-shaped container 31 is provided in the silver sand attachment portion 7, and the silver sand 3 is laid in the container 31 with the surface leveled. The silver sand attachment portion 7 has a scraper 32 for leveling the surface of the silver sand 3 and a discharge chute 33 for discharging extra silver sand 3 when the scraper 32 leveles the silver sand 3 out of the container 31. Is provided. When operating the scraper 32, it is moved as shown by the arrow B.

After the silver sand 3 is adhered to the lower surface, the robot hand 6 is moved as it is, and is first placed on the carriage 8 with the surface on which the silver sand 3 is adhered down as a contact surface ( Movement of arrow A3). In the drawing, the brick horn 1 is already stacked in four stages, but in this case also, the operation is exactly the same as above, and the brick horn 1 newly carried by the robot hand 6 The bricks 1 are sequentially placed on the upper surface of the placed brick raw corner 1 (movement of arrow A3). In this way, in a state where silver sand is interposed between the brick angle 1 and the cart 8 and between the upper and lower contact surfaces between the brick angle, the brick angle 1 is stacked on the carriage 8 in multiple stages. Can be.

When this method is performed, the silver sand 3 is not sprayed by hand, so that the work efficiency is improved and the amount and distribution of the silver sand 3 interposed between the contact surfaces are reduced. Thus, problems such as warpage of the brick after firing can be solved. In addition, as the kind of the glue 2,
What can be applied thinly to the underside of the brick horn 1 and can hold the silver sand 3 at least until the brick horn 1 is stacked and does not adversely affect the brick horn. May be used, for example, a kind of slightly sticky water may be used.

Next, the specific structure of each part of the silver sand deposition apparatus of the present invention will be described. FIG. 2 is a side view of a main part of the silver sand deposition apparatus, FIG. 3 is a plan view of the main part of the apparatus, and FIG.
FIG. 6 is a sectional view taken along the arrow VI. Note that the entire apparatus includes a robot hand 6, a gluing section 5, and a silver sand attaching section 7.
The robot hand 6 is not shown in the figure because a well-known one having an appropriate structure can be used. In the apparatus of the present embodiment, as shown in FIG. 2, a gluing section 5 and a silver sand attaching section 7 are provided on a gantry 11 side by side.

As shown in detail in the perspective view of FIG. 5, the gluing section 5 includes a container 21 containing the liquid glue 2 and a container 21
A gluing roller 23 and a replenishing roller 22 which are horizontally arranged on the top. A pair of columns 12 stands on the side of the container 21, and an intermediate portion of a horizontally arranged arm 25 is rotatably supported by a shaft 24 at the upper end of the column 12. The arms 25 are arranged in a pair of left and right parallel to each other, and a gluing roller 23 and a replenishing roller 22 are rotatably mounted between one ends of both arms 25 extending above the container 21. The gluing roller 23 and the replenishing roller 22 are in contact with each other at their outer circumferences. When the gluing roller 23 rotates, the replenishing roller 22 also rotates.

The replenishing roller 22 includes the gluing roller 2.
3 and is so arranged that about half of it is immersed in the glue 2 in the container 21. A weight 25a (biasing mechanism) is attached to the other end of each arm 25, and one end of the arm 25 is urged upward by the action of the weight 25a. When there is no load, the stopper 2
6 stops the arm 25 at a substantially horizontal position.
Reference numeral 27 denotes a bottle for refilling the glue 2, and the glue 2 in the container 21.
When the amount of water decreases, the glue 2 is automatically replenished in response to a decrease in the liquid level. Therefore, the liquid level of the glue 2 in the container 21 is controlled to be substantially constant.

The silver sand adhering section 7 has a horizontally disposed thin rectangular silver sand container 31, a scraper 32, a discharge chute 33, and a supply hopper 34 for the silver sand 3. These are held by a frame 35, and a supply hopper 34 is provided at one end of the silver sand container 31 in the longitudinal direction, and the opposite side (the gluing portion 5).
A discharge chute 33 is arranged on the side). As shown in FIG. 4, silver sand 3 is laid on the upper surface of silver sand container 31, and cushion sponge 9 is arranged below silver sand 3.

The scraper 32 has a gate-shaped frame 36 disposed so as to straddle above the silver sand container 31. The gate-shaped frame 36 is slidably supported by guide rails 40 arranged on both sides of the frame 35, and is driven by the motor 42 to drive the endless chain 39 around, so that the gate-shaped frame 36 extends in the longitudinal direction of the silver sand container 31. Reciprocate. Normally, the scraper 32 is on standby at the supply hopper 34 side, moves to the discharge chute 33 side during the leveling operation, moves to the end point, and then returns to the standby position. The endless chain 39 is composed of sprockets 3 arranged at one end and the other end of the silver sand container 31.
7, 38. A vertically moving cylinder 32a is provided at an upper end of the portal frame 36, and a leveling member 32b of the scraper 32 is provided at a lower end of a downward rod of the vertically moving cylinder 32a.

In the work of depositing silver sand, the robot hand is controlled to operate on a predetermined path. The operation will be described below. First, the robot hand (not shown) presses the handled brick angle on the upper surface of the gluing roller 23 of the gluing unit 5 and slightly moves the side in this state. Then, the gluing roller 23 rotates while being in contact with the lower surface of the brick angle, and applies the glue 2 adhering to its own outer periphery to the lower surface of the brick angle. At this time, the glue roller 23 comes into contact with the lower surface of the brick raw corner with a constant force by the action of the weight 25a, so that an appropriate amount of the glue 2 is uniformly applied. Further, since the arm 25 swings when the raw brick angle 1 is pressed against the roller 23, the impact when the brick raw angle hits the gluing roller 23 is reduced. The glue 2 pumped from the container 31 by the replenishing roller 22 is supplied to the outer periphery of the gluing roller 23 according to its own rotation.

When the gluing is completed, the robot hand moves the raw angle of the brick to a position above the adjacent silver sand attaching portion 7 and the silver sand container 3
Lower the brick angle on 1. Then, the lower surface of the glued brick raw corner is placed on the surface of the silver sand 3 spread over the container 31. As a result, a suitable amount of the silver sand 3 uniformly adheres to the lower surface of the glued brick raw corner. At this time, the cushion sponge 9 on the lower side of the silver sand 3 acts as a buffer.

Next, the robot hand lifts the raw angle of the brick as it is and moves above the cart. Then, the carried brick angle is placed on the upper surface of the brick angle previously placed on the trolley. By repeating this operation, the brick raw corners are stacked with the silver sand 3 interposed between the upper and lower brick raw corners and between the brick raw corners and the cart.

The silver sand 3 on the silver sand container 31 of the silver sand attaching section 7 decreases every time one attaching operation is completed.
Depress gradually. Then, after finishing several adhesion operations, the silver sand replenished from the replenishment replenishing hopper is operated by the scraper 32 to perform the leveling work of the surface of the silver sand 3. That is, first, the vertically moving cylinder 3 of the scraper 32
2a is lowered to lower the leveling member 32b from the upper position to the working position. Then, in this state, the motor 42 is driven to move the scraper 32 from the supply hopper 34 to the discharge chute 33. Thereby, the surface of the silver sand 3 can be leveled at the same time as the supply.

The excess silver sand 3 due to the leveling operation is discharged from a discharge chute 33. Finally, the discharge chute 33
When the scraper 32 is moved to the
2a is lifted to lift the leveling member 32b to the upper position, and the motor 42 is reversed to return the scraper 32 to the standby position on the supply hopper 34 side. The equalizing operation is performed with the above operation as one cycle. Therefore, the surface of the silver sand 3 can always be maintained at a favorable flat surface, and uniform adhesion of the silver sand 3 can be realized.

In the present invention, the method of interposing the silver sand 3 on the contact surface of the raw brick angle is most naturally carried out in the above-mentioned form. However, in some cases, the surface on which the silver sand is adhered may be used. It is also possible to successively pile up the next brick fresh corner on the upper surface to which the silver sand is adhered by the handling operation. In addition, by depositing silver sand on the upper and lower surfaces of the brick open corner and stacking every other unit, silver sand can be interposed between all the upper and lower brick open corners. Further, in the present invention, a large number of brick horns may be handled at the same time, and the above-described steps may be carried out so as to be stacked on a truck.

[0025]

As described above, according to the first aspect of the present invention, since the glue is applied to the contact surface of the raw brick and the silver sand is adhered thereto, the variation in the amount of silver sand adhered is reduced. Thus, it is possible to prevent occurrence of problems such as warpage of the brick after firing. In addition, since silver sand can be attached to the lower surface of the brick raw corner, the setting of silver sand is completed only by sequentially stacking the silver sand. Therefore, unlike the case where silver sand is sprayed on the upper surface of the brick raw corner by hand, automation is easy.

According to the second aspect of the present invention, the surface of the silver sand stored at a predetermined location is leveled, so that the contact between the predetermined surface of the raw angle of the brick and the silver sand is stabilized, and Adhesion of silver sand to a predetermined surface can be made more uniform. According to the third aspect of the present invention, the provision of the gluing section, the silver sand attaching section, and the handling section enables silver sand to be automatically attached to the brick raw corner, and the contact surface of the brick raw corner. Bricks can be piled up with silver sand interposed. Therefore, the work efficiency can be improved with almost no manual work, and the quality of the fired product can be improved by eliminating the dispersion of silver sand.

In the case where a gluing roller is provided in the gluing section, the glue can be easily and appropriately applied. Also, as in the invention of claim 5,
When the urging mechanism of the gluing roller is provided in the gluing unit, the impact when the brick angle is pressed against the gluing roller by the handling device can be reduced, and the contact pressure can be made constant. Further, when the scraper is provided at the silver sand adhesion portion as in the invention of claim 6, the recessed portion due to the adhesion of the silver sand up to the previous time can be cleanly leveled, and the silver sand can always be removed under favorable conditions. It can be attached to the lower surface of the brick brick.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory diagram of an embodiment of the present invention.

FIG. 2 is a side view of the device according to the embodiment of the present invention.

FIG. 3 is a plan view of the device according to the embodiment of the present invention.

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3;

FIG. 5 is a perspective view of a gluing unit in the apparatus of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Brick fresh angle 2 Glue 3 Silver sand 5 Glue part 6 Robot hand (handling part) 7 Silver sand adhesion part 21 Container (supply part) 22 Auxiliary roller (supply part) 23 Glue roller 25a Weight (biasing mechanism) 31 Silver sand Container 32 Scraper

Claims (6)

[Claims] 1. A method in which silver sand is interposed in a contact surface of a raw angle of a brick to be stacked when the raw angle of a brick is carried in a multi-stage state to a firing step. Glue is applied to at least one of the contact surfaces of the corners, and the surface on which the glue is applied is brought into contact with the surface of silver sand that is stored at a predetermined location to cause the silver sand to adhere to the same surface. A method of interposing silver sand on a contact surface of a brick raw angle, wherein the raw surfaces of the bricks are sequentially stacked with the surface on which the surface is adhered as a contact surface. 2. The method according to claim 1, wherein the surface of the silver sand stored at the predetermined location is leveled evenly. 3. A silver sand adhering device for adhering silver sand to a contact surface of a brick fresh angle to be stacked when carrying a brick fresh angle into a firing step in a multi-stack state, wherein the silver sand attaching device is provided on a predetermined surface of the brick fresh angle. A gluing section for applying glue, a silver sand attaching section capable of storing a predetermined amount of silver sand in a container, and handling of a brick raw corner, and applying glue to a predetermined surface of the brick raw corner at the gluing section. And a handling unit that allows the predetermined surface to come into contact with the surface of the silver sand of the silver sand attachment unit to cause the silver sand to adhere thereto, and then allows the brick raw angle to be transferred to a predetermined location. Silver sand deposition equipment. 4. A gluing roller for applying the glue adhered to the outer periphery to the predetermined surface by the gluing portion coming into contact with a predetermined surface of the brick raw corner, and a replenishing portion for supplying glue to the outer periphery of the gluing roller. The silver sand adhesion device according to claim 3, comprising: 5. The gluing section has an urging mechanism for urging the gluing roller in the direction of the raw brick angle with a predetermined urging force when a predetermined surface of the raw brick angle is pressed against the gluing roller. 5. The silver sand deposition device according to claim 4, wherein: 6. The silver sand application apparatus according to claim 3, wherein the silver sand application section includes a scraper that can be moved substantially horizontally to level the surface of the silver sand in the container.