JPH0772019B2 - Transfer device for unglazed substrate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to an apparatus for transferring unglazed green bodies used in the process of manufacturing flat tiles and the like.

(Prior Art) When manufacturing a tile, there are various kinds of series of manufacturing processes from the molding stage to the product inspection stage depending on the intended use of the tile. , The combination of small steps incorporated therein and the order of arrangement are different. For example, the process for manufacturing interior tiles, which is characterized by a relatively thin wall thickness, is dry pressure molding →
It was formed by combining small steps of drying → unglazed → glazed → main ware → product inspection, but the unglazed step among these is
It was not usually incorporated in the manufacturing process of exterior tiles and mosaic tiles.

By the way, in the unglazed step, crystal water, salts, organic substances and the like contained in the base material of the interior tile are burned down prior to the glazing step to be refrained from next, and the base material is sintered to increase water absorption and strength. It was for. Since the tunnel kiln was used in the unglazed process, the substrate was trolleyed in the tunnel kiln 1 as shown in FIG.
It was necessary to stack a large number of pillars 3a, 3b, ... on top. In the industry, such a firing method is called "naked grilling".
Or called "bare stack firing". As described above, the glazing process is followed by the glazing process. Therefore, the unglazed green bodies stacked on the trolley 2 are placed flat on the rear side of the tunnel kiln 1. A device (not shown) for transferring to was provided. The device holds the opposing side surfaces near the lowermost end of the columnar article (3a) of the biscuit body and holds the top surface so that it can be lifted, and lifts it. It was laid down horizontally and transferred to the upstream part such as a conveyor in this horizontal posture. In addition, the pillars (3a) of the unglazed green body in a horizontal posture are kicked out one by one on the conveyor in a flat state, and are transferred to the next glaze process as a single transfer line. It was getting closer.

(Problems to be Solved by the Invention) The base material after molding which is sent to the unglazed step has surplus powder of the molding clay attached to the entire peripheral surface thereof, and the surplus powder is
By stacking the base materials on the carriage 2, the base materials are interposed between the contact surfaces of the base materials. Therefore, pillars (3a) of unglazed green body carried out from tunnel kiln 1
In some cases, the sticking between the upper and lower bisque-fired substrates was sometimes caused by the welding of excess powder. Therefore, when there is a large amount of surplus powder interposed between the bases, the sticking strength is also large, so the welded state was not released at the time when it was kicked out onto the conveyor, and multiple bisque-fired bases stuck up and down. It was sometimes sent to the glaze process as it was. In this case, the bisque-fired bases in the sticking state must of course be rejected as defective products, which has been a cause of deteriorating the yield rate in the bisque-burning process or the glaze process.
In order to prevent such a defect, when stacking the base materials on the trolley 2 in the preceding stage of the unglazing process or the drying process, the upper and lower base materials are slightly shifted to the left and right to be stacked. However, this was not enough to completely eliminate the occurrence of defective products.

The present invention has been made in view of the above circumstances, in the unglazed substrate sent to the glaze process after finishing the unglazed process, to ensure that the flat placement of each piece,
An object of the present invention is to provide a novel transfer device (hereinafter referred to as the device of the present invention) for a unglazed green body, which can improve the yield rate in the unglazed process or the glaze process.

"Structure of the Invention" (Means for Solving the Problem) The gist of the device of the present invention is that a device for transferring a base material such as a flat tile that has been unglazed in a stacked state from a stacked state to a flat state. In, at least two suction cups arranged downward with respect to an appropriate carrier reciprocating between the upper part of the stacking position and the upper part of the flat placement position, and a striking end arranged between the respective suction cups. And the striking end is capable of instantaneously entering and leaving the area below the suction surface of the suction cup.

(Operation) In the present invention, when peeling the bi-firing bases in the sticking state from each other, by applying a momentary impact to the surface of the bifiring base positioned on the upper side of the bi-firing bases, it is possible to realize reliable peeling. It was made based on. That is, the striking end is made to collide with the top surface of the columnar object in which the unglazed bodies are stacked before the suction surface of the suction cup comes into contact with the top surface. As a result, even if the contact surface between the unglazed body located on the top surface of the columnar object and the unglazed body located below it is in a sticky state, the sticking state will be affected by the instantaneous vibration. Or, it will be reliably peeled off by impact. Therefore, after the striking end is retracted, if the biscuit body positioned on the top surface of the columnar object is adsorbed by the suction cup, only one piece of the biscuit body is surely held.

(Example) The following will describe the present invention with reference to the drawings illustrating an example thereof.

FIG. 1 is a front view showing the device of the present invention, and FIG. 2 is a partial front sectional view showing an enlarged main part of the device of the present invention. As shown in FIG. 1, in the device of the present invention, an elevator 5 is suspended from a carrier 4, and a large number of suction cups 6, 6, ... Are arranged on the lower surface side of the elevator 5. . In the device of the present invention, the stop of the trolley 2 which has finished the unglazed process and the upstream part of the glazed conveyor 11 which conveys the unglazed green body 9, 9, ... is set up.

As shown in FIG. 2, the suction cups 6 are arranged so that two of the suction cups 6 correspond to one side of the columnar article 3 of the biscuit base material 9. Also, although not shown in the drawing, each sucker
Similarly, suction cups are lined up in the back of the 6, 6, and in the end, a total of four suction cups 6, 6, ... Are arranged in a quadrangle and assigned to each of the four corners on the plane with respect to one unglazed body 9. The lifting plate 5 for holding each of the suction cups 6, 6, ... Has an intake passage inside, and is connected to an appropriate intake device (not shown) or the like, so that the suction cups 6, 6 ,. To generate a suction force. Further, a hitting tool 7 is attached to the lifting plate 5 at the center of the rectangular arrangement of the suction cups 6, 6, .... In this embodiment, a mini-cylinder is used as the hitting tool 7 facing downward.

The striking tool 7 has a bullet-shaped striking end 8 made of a synthetic resin material or a hard rubber material attached to the rod end thereof. The striking end 8 instantly projects downward by supplying compressed air or the like to the striking tool 7, and when the supply of compressed air or the like is stopped or sucked, the striking end 8 is instantaneously retracted to the original standby state. It is like this. The standby state of the striking end 8 is above the suction surface of the suction cup 6 (the lowermost level of the umbrella-shaped tongue), and the protruding state is below the suction surface of the suction cup 6 as indicated by the chain double-dashed line. It is related so that Therefore, when the suction cups 6, 6, ... Are brought close to the biscuit base material 9 positioned on the top surface of the columnar object 3, immediately before the suction surfaces of the suction cups 6, 6 ,. If compressed air or the like is supplied to the striking tool 7 and the supply is immediately stopped or sucked, the striking end 8 of the striking tool 7 strikes the center of the bisque-fired green body 9 instantaneously. Therefore, even if there is sticking between the unglazed green body 9 positioned on the top surface of the pillar 3 and the unglazed green body 9 on the lower side, the two can be reliably separated by this impact. Then, if suction is performed by the suction cups 6, 6, ... In addition, unglazed base 9
In the case where a tile having a nominal size of 100 mm on a side is targeted, a mini cylinder with a diameter of 20 mm is used as the impact tool 7, and the compressed air supplied to the impact tool 7 is about 5 to 7 kg / cm ^2. It is better to set to.

By the way, as shown in FIG. 1, the elevator board 5 is suspended from the carrier 4 via the elevator cylinder 12. Further, the carrier 4 can reciprocate between each position between the upper part of the trolley 2 stopped after the unglazing step and the upper part of the upstream part of the glazed conveyor 11. Therefore, the elevator board 5 is moved up and down and reciprocated, so that the suction cups 6, 6, ... Arranged on the lower surface of the elevator board 5 and the top surface of the base material column 3 stacked on the carriage 2 and glazed. .. are moved so as to come close to the flat-laying parts 9, 9 ,. In this embodiment, the crank mechanism 10 is used as a mechanism for reciprocating the transport body 4. As shown in the plan view of FIG. 3, the mechanism 10 is such that a large gear 13 having a boom 14 is rotated by a small gear 16 which is interlocked with a motor (see reference numeral 15 in FIG. 1) and the like. It is devised to make the traveling of the carrier 4 smooth and agile.

(Study of another aspect) In the device of the present invention, the object to release the sticking after the bisque-firing process is not limited to the bisque-firing base of flat-plate tiles, but a biscuit-firing base such as accessory tiles or roof tiles. May be Further, the material, shape, quantity, etc. of the striking end 8 are not limited to those in the above-mentioned embodiment, but can be changed according to the wall thickness, the plane size or the shape of the biscuit base material 9. Further, the hitting tool 7 for instantaneously moving the hitting end 8 in and out may be a solenoid, or may be replaced with a combination of a motor and a crank mechanism. Further, as the mechanism for reciprocating the transport body 4 and the mechanism for raising and lowering the elevator board 5, any conventionally known mechanism can be applied. As described above, the shape and configuration of the device of the present invention can be appropriately changed according to the embodiment.

"Effects of the Invention" As is clear from the above description, according to the unglazed substrate transfer device according to the present invention, a plurality of unglazed substrates that have been subjected to the unglazed process and then sent to the glaze process have been stuck. The yield rate in the unglazed process or the glazed process is remarkably improved because it does not remain as it is. Of course, during the glaze process or in the subsequent stage, it is possible to save the trouble of eliminating defective products that cannot be glazed due to sticking, so that the work efficiency is also improved. In addition, when stacking the base materials on the trolley in the preceding stage of the bisque-firing process, there is no need to shift the base materials from side to side, which has many excellent advantages such as simplification of the device. ing.

[Brief description of drawings]

FIG. 1 is a front view showing the device of the present invention, FIG. 2 is a partial front sectional view showing a main part of the device of the present invention in an enlarged manner, and FIG. 3 is a plan view illustrating a drive structure of a carrier, FIG. [Fig. 3] is a perspective view showing a bisque firing step. 2 ... carriage, 3 ... barrel of unglazed body 4 ... conveyor, 5 ... elevator board 6 ... sucker, 7 ... striking tool 8 ... striking end, 9 ...... sigma substrate 11 ... glazed conveyor

Claims (1)

[Claims] Claim: What is claimed is: 1. In a device for transferring a base material such as flat tiles annealed in a stacked state from a stacked state to a flat placed state, reciprocating between an upper part of the stacked position and an upper part of the flat placed position. And at least two suction cups arranged downward with respect to the appropriate transporting body, and striking ends arranged between the suction cups, the striking ends being located below the suction surface of the suction cups. An unglazed substrate transfer device characterized by being capable of instantaneous access.