JP2003128250A - Separating device for pallet for drying roof tile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that when fitting between projections and recesses for fitting of stacked pallets for drying roof tile gets tight, the pallet for drying roof tile designed to be separated is not separated at separation with a separating device, due to tight fitting between the projections and recesses for fitting, but lifted with the pallet for drying roof tile lifted by a lifting means. SOLUTION: In this separating device 10 for a pallet for drying roof tile for separating at least the pallet 50 for drying roof tile stacked vertically, the lifting means for lifting the pallet 50 for drying roof tile located on an upper stage from the pallet for drying roof tile located on a lower stage is provided and a stopping means for stopping the pallet 50 for drying roof tile located on the lower stage when the pallet 50 for drying roof tile located on the upper stage is to be lifted is provided.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tile drying pallet separation apparatus for separating a tile drying pallet used for drying tile tiles. 2. Description of the Related Art Undried tiles are generally dried in a horizontal state by a tile drying pallet. Normally, tiles for drying tiles on which undried tiles are placed are stacked in a multi-stage form, and are dried by being sent into a drying oven. After the tiles are dried, the tiles need to be separated from each other in order to load and unload the tiles from the tiles. Here, a conventionally known tile drying pallet will be described. For example, a tile drying pallet 50 shown in FIG. 10 includes a rectangular frame 52, on which a number of support rods 54 are horizontally laid so as to be parallel to each other, and conforms to the back surface of the tile substrate. The receivers 56, 58, and 60 form a set, and these receivers 56, 58, and 60 are attached to the support rod 54, and can hold 25 tiles (5 rows × 5 columns). Was. At the corners of the frame 52, connecting columns 6
2 are provided, and a connecting protrusion 62 is provided on the upper surface of the connecting column 62, and a concave portion 66 corresponding to the fitting protrusion 64 is provided on the lower surface of the connecting column 62. According to the tile drying pallet 50, the tile drying pallets 50 can be stacked by fitting the fitting projections 64 and the concave portions 66 of the connecting pillars 62, and the displacement of each tile drying pallet 50 is prevented. We were able to. [0004] As a device for separating the stacked tile drying pallets 50, for example, a separation device 100 shown in Figs. 11 and 12 is known. In the separation device 100 shown in FIGS. 11 and 12, a pair of frames 104, 104 facing both sides of a conveyor 102 that conveys a tile drying pallet 50 stacked in a multi-stage manner is provided. An elevating body 106 was provided. Then, the elevating body 106 has a frame 10 facing the same.
A pair of support claws 108, 1 which can move forward and backward toward
08 was provided. According to the separation device 100,
For example, the support claws 108, 108 are moved forward on the lower surface of the frame 52 of the pallet 50 for drying tiles from the second bottom, and the support claws 108, 108 are raised. Up to the pallet 50 for drying the tiles, and the lowermost pallet 50 could be separated. As described above, the tile drying pallet 50 is provided with the fitting projections 64 and the concave portions 66 corresponding to the projections 64, so that the stacked pallet drying pallets 50 can be displaced with respect to each other. Prevention had been attempted.
However, the modification of the tile drying pallet 50 may cause distortion in the frame of the tile drying pallet 50 in some cases. Since the tile drying pallet 50 is generally made of metal, for example, in a modification involving welding, distortion of the frame 52 of the tile drying pallet 50 often occurs more often. In addition, it is not rare that the tile drying pallet 50 without distortion and the tile drying pallet 50 having distortion are mixed and stacked, but it is not rare in the commercial practice.
In some cases, the fitting between the protrusion 64 for fitting and the concave portion 66 becomes tight. For this reason, when separating the tile drying pallet 50, the tile drying pallet 50
In some cases, the fitting protrusion 64 and the concave portion 66 are not separated due to the tight fit, and may be lifted together with the tile drying pallet 50 lifted by the support claws 108. If the tile drying pallet 50 intended for separation is not separated, the separation device 100 stops as a separation abnormality, and the stop affects other production processes, thereby impairing the productivity of the tile. Further, the separation device 1 may be configured such that the tile drying pallet 50 lifted following the tiles 50 lifted by the support claws 108 is dropped.
There is also a risk of causing damage to 00 and peripheral devices. The problem to be solved by the present invention is that when the fitting of the fitting projections or the recesses of the stacked tile drying pallets becomes tight, the tile drying by the separating device is performed. When separating the pallets, the tile drying pallets intended to be separated are not separated due to the tight fit between the fitting projections and the recesses, and are lifted together with the tile drying pallets lifted by the lifting means. There is a point. An object of the present invention is to surely separate a tile drying pallet intended for separation even when the stacked tile drying pallets are tightly fitted with each other when the tile drying pallet is separated by a separating device. It is an object of the present invention to provide a separation device for a tile drying pallet capable of drying. In order to achieve the above object, a tile drying pallet separating apparatus according to the first aspect of the present invention includes a tile drying pallet stacked at least vertically. A separating device for a tile drying pallet for separating a tile drying pallet located at an upper stage, and a stationary device for stopping a tile drying pallet located at a lower stage. And The tile drying pallet separating device according to the first aspect of the present invention has the above-mentioned structure. Therefore, the upper tile drying pallet is lifted from the lower tile drying pallet by the lifting means. Even if the fitting of the pallet for tile drying is tight, the pallet for tile drying at the lower level and the pallet for tile drying at the upper level are stopped by the stationary means. According to the first aspect of the present invention, even if the fitting of the stacked tile drying pallets is tight, the tile drying pallets intended to be separated can be reliably separated. Therefore, when the pallet for tile drying is separated, the separation device does not stop as a separation abnormality, so that it is possible to prevent a decrease in the productivity of the tile and to prevent the separation device from being damaged. Absent. FIG. 1 is a front view of an apparatus for separating pallets for tile drying according to an embodiment, FIG. 2 is a side view of the apparatus,
3 to 7 are explanatory views showing the procedure for separating a tile drying pallet by the same apparatus, FIG. 8 is a front view of a tile drying pallet separating apparatus according to another embodiment, and FIG. 9 is a side view of the same apparatus. FIGS. 10 and 10 are perspective views of a tile drying pallet, FIG. 11 is a front view of a conventional apparatus, and FIG. 12 is a side view of the conventional apparatus.
The tile separation pallet separation device 10 (hereinafter referred to as “separation device 10” for convenience) according to the embodiment of the present invention basically includes a lifting means and a stationary means. The lifting means is a pallet 50 for drying tiles as in the case of the conventional apparatus.
The stationary means has the purpose of forcibly stopping the tile drying pallet 50 lifted by the lifting means and another tile drying pallet 50 located immediately below the tile drying pallet 50 to be lifted. The separation apparatus 10 according to this embodiment will be specifically described with reference to the drawings. Although the conveyor 12 is provided as shown in FIG. 1, the purpose is mainly to convey a tile drying pallet 50 stacked in a multi-stage manner. In this embodiment, an example is described in which the tile drying pallets 50 stacked in ten stages are transported on the conveyor 12. Gate-shaped frames 14, 14 as viewed from the side
Are provided so as to sandwich both sides of the conveyor 12 when viewed from the front. Each of the frames 14, 14 has a U-shaped cross section in which the inner sides thereof are open, and the two pillars 16, 16 and the horizontal member 1 connecting the tops of these pillars are connected to each other.
8 (see FIGS. 1 and 2). An elevating body 20 is provided between the columns 16 on both sides in a horizontal state, and can be moved up and down with respect to the columns 16 by a drive motor (not shown) (see FIGS. 1 and 2). . A support claw 2 is provided on the lower surface of each of the lifting members 20 near the columns 16 and 16.
2 and 22 are provided, respectively, and these support claws 22 are opposed to each other by the air cylinder (not shown).
It is possible to advance and retreat toward 14. The support claws 22 support the lower surface of the frame 52 of the tile drying pallet 50 and lift the tile drying pallet 50, and correspond to lifting means in the present invention. In this embodiment, two support claws 22 are provided on one side and two on the other side, and a total of four support claws 22 are provided, but the advance and retreat of each support claw 22 are controlled so as to be synchronized with each other. In addition, the lifting bodies 20, 20 on both sides
Also, the elevation is controlled so as to be synchronized with each other. Therefore, each of the support claws 22 is supported by the elevating bodies 20 and moves up and down, but is always located at the same height.
The advance and retreat of each support claw 22 is performed at the same time. In this embodiment, as the specific structure of the lifting means, the support claw 22 which can move forward and backward is employed. However, the structure is not particularly limited as long as it can lift the tile drying pallet 50. For example, lifting means using air suction by a suction cup, physical holding by an arm, or magnet lifting may be used. An air cylinder 24 is suspended from the support claw 22, and a pallet 5 for drying tiles on the conveyor 12 is attached to an end of a rod 26 directed downward from the air cylinder 24.
A holding plate 28 extending horizontally toward the zero side is attached. When the support claw 22 supports the tile drying pallet 50, the holding plate 28 provided at the end of the rod 26 of the air cylinder 24 serves as a tile drying device located immediately below the tile drying pallet 50 supported by the support claw 22. The pallet 50 is for pressing around the four corners of the pallet 50 and stopping the pallet 50, thereby forcibly separating the pallet 50 for tile drying. Therefore, in this embodiment, the air cylinder 24, the rod 26, and the holding plate 28 correspond to the stationary means. The tip of the holding plate 28 substantially corresponds to the position of the tip of the support claw 22, and in a normal state where the rod 26 is retracted,
The positional relationship between the support claw 22 and the press plate 28 is set such that the support claw 22 and the press plate 28 can be inserted between the upper and lower sides of the frame 52 of the stacked tile drying pallet 50. . The holding plate 28 moves downward due to the extension of the rod 26 of the air cylinder 24. The extension of the rod 26 is controlled so as to be synchronized with the elevation of the support claw 22 that lifts the tile drying pallet 50. is there. In this embodiment, the air cylinder 24, the rod 26, and the holding plate 28 are employed as a specific configuration of the stationary means.
There is no particular limitation as long as it is a configuration that can make 0 stationary. Further, the stationary pawl 22 may be provided with a stationary means independently of the supporting pawl 22 without providing the air cylinder 24, the rod 26, and the holding plate 28 as stationary means. In this case, the stationary means is the support pawl 22
A configuration is required in which the pallet 50 can be moved back and forth and raised and lowered independently, and the pallet 50 for drying the roof tiles can be stopped. For example, by employing a multi-axis control robot equipped with an equivalent to the holding plate 28, a stationary means independent of the support claw 22 can be realized. In the tile drying pallet 50 of this embodiment, the fitting of the fitting projections 64 and the recesses 66 provided on the connecting columns 62 prevents the stacked tile drying pallets 50 from being displaced. However, the present invention is not limited to the fitting projections 64 and the concave portions 66. In order to prevent the displacement, it is sufficient that at least physical fitting of the tile drying pallet 50 is realized. Next, the tile drying pallet 50 by the separation device 10 of the tile drying pallet 50 according to this embodiment.
The procedure of the separation will be described. It is assumed that the tile drying pallets 50 stacked in ten stages are mounted on the conveyor 12. Here, the lower tile pallet drying pallet 50 of the present invention is replaced with the lowermost tile drying pallet 50.
The case where the tile for drying tiles located at the upper stage is the second stage for drying tiles from the bottom, and the lowermost stage for drying tiles 50 and the second stage for drying tiles from the bottom are separated will be described. (See FIG. 3). The stacked tile drying pallets 50 are conveyed by the conveyor 12, but when the tile drying pallets 50 reach the separation device 10, the conveyor 12 is stopped. Next, the lifting means of the separation device 10 is operated, and the support claws 22 are inserted between the frame 52 of the lowermost tile drying pallet 50 and the frame 52 of the second lowermost tile drying pallet 50. (See FIG. 4). At this time, the end of the rod 26 of the air cylinder 24 of the stationary means provided on the support claw 22 is in a retracted state. Next, the support claws 22 are raised, and the support claws 22
Is brought into contact with the lower surface of the frame 52 of the second tile pallet 50 for drying tiles from the bottom. At this time, the air cylinder 24 of the separation device 10 is operated to extend the rod 26. Rod 2
6, the pressing plate 28 moves, and the pressing plate 2 is placed on the upper surface of the frame 52 of the lowermost tile drying pallet 50.
8 is abutted. Next, the support claws 22 are further raised, and the rods 26 are further extended as the support claws 22 are raised (see FIG. 5). While the support claw 22 is raised, the pressing plate 28 presses the upper surface of the frame 52 of the lowermost tile drying pallet 50 by the extension of the rod 26. In other words, the pallet for drying tiles at the second to tenth stages from the bottom supported by the support claws 22 rises,
The rod 26 extends in response to the rise of the support claws 22, and while the rod 26 is extended, the holding plate 28 always presses the lowermost tile drying pallet 50, and the lowermost tile drying pallet. 50 and the second-stage tile drying pallet 50 from the bottom are forcibly separated. Therefore, even if the fitting of the fitting projections 64 and the concave portions 66 provided on the tile drying pallet 50 is tight due to distortion, the tile drying pallet 50 is reliably separated. When these pallet drying pallets 50 are completely separated, the rod 26 of the air cylinder 24 is retracted, and the holding plate 28 is opened from the upper surface of the frame 52 of the lowermost pallet drying pallet 50. (See FIG. 6). The lowermost tile drying pallet 50 released from the pressing by the pressing plate 28 is sent out by the conveyor 12. When the tile drying pallet 50 is sent out, the support claws 22
Descends, and the second stage to 1 supported by the support claws 22
The 0th-stage tile drying pallet 50 is placed on the conveyor 12, and the 2nd-stage tile drying pallet 50 is located at the bottom (see FIG. 7). If the separation and sending out of the tile drying pallets 50 are repeated in the same procedure, all the tile drying pallets 50 stacked in ten stages can be separated. Next, a separation device 30 according to another embodiment is described.
Will be described. Separation device 30 according to this embodiment
Is for separating the uppermost tile drying pallet 50 and the second tile drying pallet 50 from the top among the stacked tile drying pallets 50. On both sides of the conveyor 32, substantially trapezoidal frames 34, 34 are provided as viewed from the side, and a connecting member 3 is provided at the top between the two frames 34, 34.
6 and 36. Wheels 38, 38 are provided on the lower surface of the frame 34, and can reciprocate within a predetermined range with respect to the conveying direction of the conveyor 32. The reason that the frame 34 reciprocates is to load and unload the tile drying pallets 50 lifted by the support claws 44 described later in front of the stacked tile drying pallets 50. Guides 40, 40 are vertically mounted on each frame 34, and a guide 4 is provided between the guides 40.
An elevating body 42 guided to 0 and 40 is provided horizontally. In the vicinity of both ends of the elevating body 42, substantially L-shaped support claws 44, 44 are provided so as to be freely opened and closed. Support claw 4
Reference numerals 4 and 44 support the lower surface of the frame 52 of the tile drying pallet 50 and lift the tile drying pallet 50, and correspond to lifting means. An air cylinder 46 is suspended from the support claw 44.
At the end of the rod 48 directed downward, a holding plate 49 that is horizontally stretched toward the tile drying pallet 50 on the conveyor 32 is attached. Air cylinder 4
The holding plate 49 provided at the end of the rod 48 of the sixth is a tile drying pallet located immediately below the tile drying pallet 50 supported by the supporting claws 44 when the supporting claw 44 supports the tile drying pallet 50. 50 is pressed in the vicinity of four corners to forcibly separate the tile drying pallet 50. Therefore, in this embodiment, the air cylinder 46, the rod 48, and the holding plate 49 correspond to the stationary means as in the previous embodiment. According to the separation device 30, the support claws 44 are closed and made to face the lower surface of the frame 52 of the uppermost tile pallet 50 for drying tiles. The top tile drying pallet 50 is lifted. At the same time, the rod 48 of the air cylinder 46 is extended, and the pressing plate 49 attached to the rod 48 presses the frame 52 of the pallet drying tile 50 at the second stage from the top. For this reason, the top tile drying pallet 50
It is forcibly separated from the tile pallet 50 for drying tiles.
Then, the uppermost tile drying pallet 50 lifted by the support claws 44 moves forward on the frame 34 to move forward of the stacked tile drying pallets 50. Next, by lowering the elevating body 42, the uppermost tile drying pallet 50 is placed on the conveyor 32. The support claws 44 of the frame 34 on which the tile drying pallet 50 is placed on the conveyor 32 are opened, and the frame 34 returns to the stacked tile drying pallet 50, and
In preparation for the separation of the tile pallet 50 for drying the tile. As described above, in each of the separation devices 10 and 30, the air cylinders 24 and 46 are provided on the support claws 22 and 44, and the holding plates 28 and 49 are attached to the ends of the rods 26 and 48 of the air cylinders 24 and 46. With this configuration, the structures of the separation devices 10 and 30 are simple, and the air cylinders 24 and 46, the rods 26 and 48, and the holding plate 2
8 and 49 are moved forward and backward or opened and closed.
Control of 0 and 30 is relatively easy. In addition, these separating devices 10 and 30 are different from the conventional device in that the air cylinder 24 and the
46, rods 26, 48 and holding plates 28, 49
, The existing equipment can be utilized, and the air cylinders 24, 46, rods 26, 48
It is also relatively easy to provide the holding plates 28 and 49.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a tile drying pallet separation device according to an embodiment. FIG. 2 is a side view of the same device. FIG. 3 is an explanatory diagram showing a state before operation of the device. FIG. 4 is an explanatory view showing a state in which a support claw of the device has advanced. FIG. 5 is an explanatory diagram showing the raising of the support claws and the operating state of the holding plate of the device. FIG. 6 is an explanatory diagram showing a state in which a holding plate of the device has returned to an original position. FIG. 7 is an explanatory view showing a state in which the support claws of the apparatus have returned to their original positions, and the second to uppermost tile drying pallets from the bottom have been placed on a conveyor. FIG. 8 is a front view of a tile drying pallet separation device according to another embodiment. FIG. 9 is a side view of the same device. FIG. 10 is a perspective view of a tile for drying tiles. FIG. 11 is a front view of a conventional tile drying pallet separation device. FIG. 12 is a side view of a conventional tile-pallet-drying pallet separator. DESCRIPTION OF SYMBOLS 10 Separation device for tile drying pallet 12 Conveyor 14 Frame 16 Column 18 Horizontal member 20 Elevating body 22 Supporting claw 24 Air cylinder 26 Rod 28 Holding plate 30 Separation device 32 for tile drying pallet 32 Conveyor 34 Frame 36 Connecting member 38 Wheel 40 Guide 42 Elevating body 44 Supporting claw 46 Air cylinder 48 Rod 49 Holding plate 50 Tile drying pallet 52 Frame 54 Supporting rod 56 Receiving tool 58 Receiving tool 60 Receiving tool 62 Connecting column 64 Protrusion 66 Depression 100 Tile drying Pallet separation device (conventional) 102 Conveyor 104 Frame 106 Lifting body 108 Supporting claws W

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Claims (1)

Claims: 1. A tile drying pallet separation device for separating tile drying pallets vertically stacked at least in two upper and lower stages, wherein the lifting device lifts a tile drying pallet located in an upper stage. A tile drying pallet separation apparatus, further comprising: means for stopping the tile drying pallet located at the lower stage.