JPH0614898U - Support for roof tile firing - Google Patents

Abstract

(57) [Abstract] [Purpose] Improve the distribution of gas in the high-temperature furnace near the contact area between the tile base and the support rods, prevent uneven firing and uneven color of the tile base, and perform high-quality tile firing. A supporting tool for roof tile firing is provided. [Structure] A roof tile support for assembling into a container for firing has receiving rods 9 and 9 and supporting rods 15 and 15 which are arranged horizontally and in parallel at a predetermined interval. The support rods 15 and 15 are placed in the concave groove 11 formed in the. In the longitudinal direction of the tops of the arcuate leg portions 16a and 16b of the support bars 15 and 15, linear protrusions 17 and cutout grooves 18 are formed at predetermined intervals, and the tile base 13 is parallel to the linear protrusions 17. It is held upright. At the time of firing, the notch groove 18 allows the firing gas in the high-temperature furnace to flow, so that the high-temperature furnace gas can flow in the vicinity of the line contact portion on the bottom surface of the roof tile body 13 well, and uniform firing becomes possible.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 TECHNICAL FIELD The present invention relates to a roof tile baking support for kiln-filling a roof tile body in a roof tile firing furnace.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, multi-tiered shelves used for filling tile roof kilns are known. For example, as shown in Japanese Utility Model Publication No. 59-1200, a shelf of this type is provided with two receiving rods that are parallel to each other and horizontally passed, and is placed in a groove of the receiving rod, for example, a prismatic shape. A large number of tile base materials are erected in parallel on the supporting rods of. In this case, the tile base material is supported by the linear tops of the support rods placed in the groove so as to reduce the contact area with the support rods. A support tool consisting of a shelf on which such tile base material is placed is kiln-filled, and the tile base material is fired in a firing furnace. When the tile base material contracts due to the temperature rise during firing, the supporting rod slides in the concave groove in the contracting direction.

[0003]

[Problems to be solved by the device]

 However, according to such a conventional roof tile baking support, a gap is hardly formed between the top of the support rod and the bottom surface of the tile base. Therefore, if a large number of tile bases are arranged on the support rod, There is a problem that the gas flow inside the high-temperature furnace is blocked at the line contact part with the support rod, and the temperature drop at this line contact part causes uneven coloring and uneven baking.

The present invention has been made to solve such a problem, and improves the circulation of the gas in the high temperature furnace in the vicinity of the contact portion between the tile base material and the support rod, and improves the uneven firing and color of the tile base material. It is an object of the present invention to provide a roof tile baking support that can prevent unevenness and perform high quality roof tile baking.

[0005]

[Means for Solving the Problems]

 The roof tile baking support according to the present invention for solving the above-mentioned problems includes a pair of receiving rods horizontally arranged at a predetermined interval and a supporting rod for placing tiles placed on the receiving rod. A supporting tool having a groove formed in at least one of the receiving rods in the longitudinal direction and for mounting the supporting rod movably in the width direction, and a supporting groove in the longitudinal direction of the supporting rod. A protruding portion formed to support the tile base material; and a notch groove formed in the protruding portion and allowing gas flow between the supporting tile and the tile base material mounted on the protruding portion. Is characterized by.

[0006]

[Action]

 According to the roof tile firing support of the present invention, when the roof tile body is placed on the convex portions of the support rod during firing, the gas in the high temperature furnace flows through the notch groove formed between the adjacent convex portions. For this reason, the distribution of the gas in the high temperature furnace in the vicinity of the line contact portion on the bottom surface of the roof tile base becomes good, unevenness in baking, color unevenness, etc. are reduced, and the entire surface of the roofing tile can be uniformly baked.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. A first embodiment of the present invention is shown in FIGS. As an example of the firing container 1 for loading the tile base material, as shown in FIG. 2, the lowermost shelf 2, the middle shelf 3, and the uppermost shelf 4 are sequentially stacked. Side plates 5 are arranged opposite to each other at both ends of the shelves 2, 3, and 4. The side plate 5 has a vent hole 6 and a receiving rod mounting hole 7, and a roof tile holding member mounting hole 8 is formed between the receiving rod mounting holes 7. The receiving rod 9 and the roof tile holding member 10 are fitted horizontally and in parallel to the predetermined receiving rod mounting holes 7 and the roof tile holding member mounting holes 8 formed in the side plates 5 at both ends. A large number of holding pins 12 are suspended from the roof tile holding member 10.

As shown in FIG. 1, the receiving rod 9 has a recessed groove 11 extending in the longitudinal direction formed on the top surface thereof, and a recessed groove bottom surface 11 a formed flat. Partitioning portions 11b extending in the longitudinal direction are formed at both ends in the width direction of the bottom surface 11a of the groove. The support rods 15 are placed in the recessed grooves 11 of the pair of parallel receiving rods 9, 9. The support rod 15 placed in the groove 11 in the longitudinal direction is slidable in the groove width direction, as shown in FIG. 3, but cannot cross the partition portion 11b. That is, the partition 11b prevents the support rod 15 from falling.

As shown in FIG. 4, the supporting rod 15 having a length slightly shorter than the receiving rod 9 has arcuate leg portions 16 a and 16 b and a linear convex portion 17. A linear convex portion 17 is formed on top of the arcuate leg portions 16a and 16b extending in the longitudinal direction. The cavity 19 formed between the arcuate leg portions 16a and 16b, through which the firing gas and the like can pass, increases the rate of temperature rise of the support rod 15 during preheating or the like. A notch groove 18 is formed between the adjacent linear protrusions 17 arranged at a predetermined interval in the longitudinal direction. The support rod 15 is made of, for example, mullite, and is manufactured by extrusion molding or the like.

As shown in FIG. 3, the linear projection 17 has a semi-elliptical cross section, and a linear support 17a is formed on the top thereof. The height from the bottom surface 16c of the arcuate upper leg portions 16a, 16b to the support portion 17a is set to a constant value larger than the height of the partition portion 11b of the receiving rod 9. The length L ₁ of the linear convex portion 17 shown in FIG. 4 is set to be substantially equal to the length L ₂ of the cutout groove 18. The sum of the length L ₁ and the length L ₂ is set to about ½ of the plate thickness of the tile base material 13 shown in FIG. Therefore, when the tile base material 13 is erected on the support rods 15 so as to intersect with each other, the bottom surface of the tile base material 13 is supported by two adjacent linear protrusions 17. In the present invention, the ratio of the lengths of L ₁ and L ₂ is not limited.

When stacking the tile base material 13 on the firing container 1 shown in FIG. 2, first, the support rod 15 is arranged in the groove 11 of the receiving rod 9 at the center of the groove width. Next, the tile base 13 is placed upright on the support rods 15, and the upper end of the tile base 13 is placed between the holding pins 12 and 12. Then, the tile base 13 is prevented from falling sideways between the holding pins 12 adjacent to each other, and the bottom face of the tile base 13 is supported by the linear protrusions 17 of the support rods 15 by line contact. It

During firing, when the tile base material 13 shrinks by firing as shown by an arrow a in FIG. 3, the support rod 15 moves in the contraction direction of the tile base material 13 while sliding in the arrow b direction due to the heat shrinkage. To do. At this time, the contact portion between the tile base 13 and the support rod 15 is kept substantially in line contact by the linear convex portion 17. At the time of contraction, the roof tile base 13 receives no load from the support rods 15 and the bottom surface of the roof tile base 13 is not damaged.

A gap through which the firing gas can flow is formed between the bottom surface of the tile base material 13 arranged on the support rod 15 and the bottom surface of the cutout groove 18. Therefore, the high-temperature furnace gas blown into the vicinity of the bottom surface of the tile base material 13 freely flows through the notch groove 18, and the support bar 15 hardly blocks the gas flow. Therefore, according to the first embodiment, the circulation efficiency of the burning gas, the fuming gas, etc. coming into contact with the bottom of the roof tile base 13 is improved, the gas is brought into contact with the entire roof tile surface almost uniformly, and there is little burning unevenness or color unevenness. A fired roof tile can be obtained.

Next, a second embodiment of the present invention is shown in FIG. In this second embodiment, a solid semicircular support rod 20 shown in FIG. 5 is used in place of the support rod having the arcuate leg portion. In the longitudinal direction of the top of the support rod 20, linear projections 22 and cutout grooves 24 are formed alternately at regular intervals. The bottom surface 20a of the support rod 20 is a flat surface. According to the second embodiment, since the weight of the support rod 20 can be made relatively large, the support rod 20 is less likely to vibrate when moving a firing container or the like loaded with the tile base material, thus stabilizing the tile base material. Let

A third embodiment of the present invention is shown in FIG. The support rod 30 according to the third embodiment has a triangular prism shape, and linear projections 32 and cutout grooves 34 are alternately formed at predetermined intervals at linear corners extending in the longitudinal direction. The side surface 30a and the bottom surface 30b are flat surfaces. According to the third embodiment, since the shape of the support rod 30 is relatively simple, molding and the like are facilitated and manufacturing is facilitated. Further, when the tile base 13 is placed on the linear protrusion 32, a gap is formed between the bottom face of the tile base 13 and the bottom face of the cutout groove 34, and a relatively large area is formed near the line contact portion of the linear protrusion 32. Since the space is formed, the firing gas, the fuming gas, etc. are easily introduced under the roof tile substrate placed on the linear convex portion 32, and the gas flow uniformly contacts the entire surface of the fired product. The quality of the product is improved.

[0016]

[Effect of device]

 As described above, according to the roof tile firing support of the present invention, since the supporting rod for supporting the roof tile body is provided with the notch groove and the gas in the high temperature furnace is circulated in the notch groove, The circulation efficiency of the burning gas near the contact portion with the rod can be increased, color unevenness, burning unevenness, etc. can be prevented, and the tile substrate surface can be baked relatively uniformly.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a roof tile baking support according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a firing container according to a first embodiment of the present invention.

FIG. 3 is a schematic view for explaining the operation of the baking support according to the first embodiment of the present invention.

FIG. 4 is a partially enlarged perspective view showing the support rod shown in FIG.

FIG. 5 is a partial perspective view showing a support rod according to a second embodiment of the present invention.

FIG. 6 is a partial perspective view showing a support rod according to a third embodiment of the present invention.

[Explanation of symbols]

 9 Receiving rod 11 Recessed groove 13 Roof tile base material 15 Support rods 16a, 16b Arc-shaped leg portion 17 Linear convex portion (convex portion) 18 Notched groove

Claims (1)

[Scope of utility model registration request] 1. A support tool comprising a pair of receiving rods arranged horizontally at a predetermined interval and a support rod for placing a roof tile placed on the receiving rod, wherein: A concave groove that is formed in at least one of the receiving rods in the longitudinal direction and that movably mounts the supporting rod in the width direction; a convex portion that is formed in the longitudinal direction of the supporting rod and that supports the tile base; A roof tile firing tool characterized by comprising a cutout groove formed between the support rod and the roof tile body formed on the convex portion and placed on the convex portion.