JP2006044095A - Grinding device of tail end face of tile basis material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grinding device of a tail end face of tile basis material for rapidly and precisely grinding an end face of a tail part of a dried tile basis material into a flat surface in a series of manufacturing processes. <P>SOLUTION: The grinding device 1 of tail end face of tile basis material has conveyers 2 for conveying the dried tile basis materials 50 by laying them down, grinding belts 4 arranged along a conveying direction on one side of the conveyers 2 in a state that grinding faces 3 are stand erect, and a head end face pressing means 5 for butting each tail end face 53 of the tile basis material 50 against the grinding face 3 of the grinding belt 4. Even if the tail end face 53 of the tile basis material 50 is deformed in any shapes, the tail end face 53 of the tile basis material 50 is pressed against the grinding face 3 of the grinding belt 4 by the head end face pressing means 5 just before grinding. Thereby, the tail end face is formed into the flat face more precisely compared to mechanisms for positioning the tile basis material regardless of the grinding face. The grinding belts are used as grinding means so as to enable rapid grinding. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a grinding device suitable for use in grinding the bottom end surface of the tile base to a flat surface for firing in a self-supporting state, and more specifically, prior to the glaze application step or firing step, The present invention relates to a bottom end surface grinding apparatus for a tile base that can quickly and accurately grind a bottom end surface of a dried tile base into a flat surface.

  In general, roof tiles are mass-produced through a series of processes including a press molding process, a drying process, a glaze coating process, and a firing process. In the firing process, it is mass-produced by making the roof tile base stand on a firing cart. It is efficient to do. Specifically, for example, in the roof tile 50 shown in FIGS. 4 and 5, the head 51 is upward and the bottom 52 is downward, and the end surface 53 of the bottom 52 is a grounding surface with respect to the upper surface of the firing carriage (not shown). It is preferable to be able to fire in a state where they are self-supporting and are arranged in parallel and spaced apart from each other.

  However, the tile base is easily deformed into various forms in the drying process due to the difference in shrinkage rate, and when it cannot stand on its own or is unstable, it may fall during firing. For this reason, various proposals have been made for grinding the bottom end face of the tile base material into a flat surface to maintain a stable self-supporting state and for that purpose.

For example, there is a grinding device disclosed in JP-A-2001-198911 as such a grinding device.
JP 2001-198911 A

  However, since this grinding apparatus moves and grinds along the bottom end face of the tile base while rotating the disk-shaped grinding cutter, a grinding time is required accordingly. In addition, since the positioning of the tile base before grinding is performed independently of the grinding surface, misalignment is likely to occur, and necessary and minimum grinding is efficiently performed to make the bottom end face of the tile base flat. I can't.

  Then, the subject of this invention is providing the bottom part end surface grinding apparatus of the tile base material which can grind the bottom part end surface of the dried tile base body to a flat surface quickly and accurately in a series of manufacturing processes. is there.

  The tile base end surface grinding apparatus of the present invention includes a conveyor that conveys a dried tile substrate in a flat state, and a grinding belt in which a grinding surface is disposed in an upright state along a conveyance direction on one side of the conveyor. In particular, the main feature is that it has a head end face pressing means for bringing the bottom end face of the tile base into contact with the grinding surface of the grinding belt.

According to the first aspect of the invention, no matter how the bottom end face of each tile base is deformed, the bottom end face is pressed against the grinding surface of the grinding belt by the head end face pressing means prior to grinding. Therefore, the tail end face can be formed on the flat surface more accurately than the mechanism in which the tile base is positioned regardless of the grinding surface. In addition, since a grinding belt is used, grinding can be performed very quickly.
According to the second aspect of the present invention, in addition to the effect of the first aspect, since the tile base to be ground is supported at three points, the tile base that may occur when supporting at four or more points is reduced. Grinds in a stable state with no wobbling. Further, since the vicinity of both ends on the butt portion side is supported at two points, grinding can be performed in a more stable state.
According to the third aspect of the present invention, in addition to the effect of the first or second aspect, the position of the end face of the tail portion with respect to the grinding surface of the grinding belt is not changed, and a flat surface can be formed more reliably. .
According to the invention described in claim 4, in addition to the effects of claims 1 to 3, no matter how the bottom end surface of the tile base to be ground is deformed, the bottom end surface of the tile base is provided on the ground surface. The flat surface can be formed more accurately.

  The tile base end surface grinding apparatus of the present invention has realized that the bottom end surface is ground to a flat surface quickly and accurately regardless of how each tile base is deformed.

  1 to FIG. 3 shows a bottom end face grinding apparatus 1 for a tile base, a conveyor 2 that transports a dried tile base 50 in a flat state, and a grinding surface 3 along the transport direction on one side of the conveyor 2. Is placed on the conveyor 2, and the head end face pressing means 5 A and 5 B for bringing the bottom end face 53 of the roof tile base 50 into contact with the grinding surface 3 of the grinding belt 4. The tile base lifting / lowering means 6A, 6B, 6C for raising and lowering the tile base 50 is provided. Hereinafter, each configuration will be described in detail.

  FIG. 1 is a schematic plan view of an embodiment of a bottom end surface grinding apparatus for a tile base according to the present invention. FIG. 2 is a schematic front view of the bottom end face grinding apparatus for a tile base shown in FIG. FIG. 3 is an enlarged schematic diagram of a part of the right side of the tile base end surface grinding apparatus shown in FIG. 1, and FIG. 4 is an embodiment of the tile base ground by the tile base end edge grinding apparatus of the present invention. FIG. 5 is a plan view of an example, and FIG. 5 is a front view of the tile base shown in FIG.

  As shown in FIG. 1, the conveyor 2 is a part that receives the tile base material that has undergone the drying process in a flat state (the state shown in FIG. 4), and after grinding the bottom end surface 53 of the tile base material 50, the glaze When the coating process or the glaze coating process is not obtained, it is for transporting to the baking process.

  The grinding belt 4 is for grinding the bottom end surface 53 of the tile base 50 to a flat surface, and as shown in FIG. 1, in the conveying direction (direction in which the conveyor extends) on one side of the conveyor 2. The grinding surface 3 is arranged along the standing direction.

  Specifically, as shown in FIG. 1, the grinding belt 4 includes first and second pulleys 7 a and 7 b provided on one side of the conveyor 2 along the extending direction of the conveyor, and a grinding belt rotation. A third pulley 7c that is rotationally driven by a motor 8 is wound around and rotated. Reference numeral 9 denotes a grinding belt tension cylinder which applies tension to the grinding belt 4 after the grinding belt 4 is wound around the first to third pulleys 7a, 7b and 7c.

  One grinding belt 4 is configured to be able to grind the bottom end faces 53 of two roof tiles 50 at the same time. Such grinding belts 4 are adjacent to each other along the extending direction of the conveyor 2. This is arranged, and six tile bodies 50 can be ground at a time. The reason why the two tile bases 50 are ground by the single grinding belt 4 and the three grinding belts 4 are arranged is to prevent the concentration of the grinding waste and to distribute the generation site of the grinding waste. More specifically, grinding waste is generated in the vicinity of the first and second pulleys 7a and 7b. For this reason, it is preferable to arrange an air blow in the part where these exist or in the vicinity of the gap between the tile bases 50.

  The grinding surface 3 of the grinding belt 4 is arranged in an upright state. The bottom end surface 53 of the tile base 50 abuts on this grinding surface 3, and the bottom end surface 53 is ground and flat by rotating the grinding surface 3. Formed.

  As shown in FIG. 1, the grinding surface 3 has a length approximately equal to two tile bodies in order to grind two tile bodies 50 simultaneously. In the case of grinding, the grinding surface 3 of the grinding belt 4 is slightly reciprocated along the extending direction of the conveyor 2 so that the two tile bases 50 are more reliably ground to the end. Has been. Specifically, each grinding belt 4 is connected to the slide shafts 10a and 10b shown in FIG. 3 together with the first and second pulleys 7a and 7b, the grinding belt rotating motor 8, the third pulley 7c and the like (grinding unit). It can be reciprocated along. Although a drive source for realizing this operation is not shown, an air cylinder or the like can be used preferably.

  On the other hand, the width (length in the height direction) of the grinding surface 3 is formed to be larger than the thickness of the tile base 50 as shown in FIG. The belt 4 is moved up and down so that the grinding position on the grinding surface 3 can be changed. Specifically, as shown in FIG. 2, the grinding belt 4 can be moved up and down along the lifting shafts 12 a and 12 b by the grinding belt lifting and lowering means 11. It is comprised so that the site | part which the bottom part end surface 53 of this will contact | abut to the grinding surface 3 can be changed.

  Further, the grinding belt 4 is configured to be reciprocable toward the conveyor 2, and by setting and controlling the amount of movement toward the conveyor 2, the grinding amount (thickness to be ground) of the bottom end surface 53 of the tile base 50 is set. In general, after adjusting the grinding surface 3 to the initial position as a grinding reference surface, the grinding belt 4 can be rotated slightly away from the conveyor 2 in order to rotate. It becomes. Specifically, as shown in FIG. 2, each grinding belt 4 includes slide shafts 13a, 7a, 7b, grinding belt rotating motor 8, third pulley 7c, etc. (grinding unit), as well as slide shafts 13a, It is comprised so that reciprocation is possible along 13b. Although a drive source for realizing this operation is not shown, an air cylinder or the like can be preferably used. FIG. 2 is a diagram in which the grinding belt rotating motor 8 is omitted in the left and right grinding units, and the grinding belt lifting and lowering means 11 and the like are omitted in the central grinding unit.

  As shown in FIG. 1, the head end surface pressing means 5 is for bringing the bottom end surface 53 of the tile base 50 into contact with the grinding surface 3 of the grinding belt 4. In this embodiment, air with an intermediate stop is provided. A cylinder is used. Specifically, the head end surface pressing means 5 is provided on the other side of the conveyor 2 (a position facing the grinding unit including the grinding belt 4 and the like with the conveyor 2 interposed), and the piston rod of this air cylinder Is extended, the pressing portion 5a (head) is configured to press the end surface of the head portion 51 of the roof tile 50 so that the bottom end surface 53 contacts the ground surface 3. In this way, in the tile base end surface grinding apparatus 1 of the present invention, the head belt end surface pressing means 5 immediately before grinding the grinding belt 4 regardless of how the bottom end surface 53 of each tile base material 50 is deformed. Since the bottom end face 53 is pressed against the grinding surface 3 of the steel sheet, the tile base is not displaced after positioning, and the bottom end face 53 is more accurately compared to a mechanism in which the tile base is positioned regardless of the grinding surface. Can be formed on a flat surface.

  The head end face pressing means 5 uses an air cylinder with an intermediate stop, presses the roof tile 53 to be ground, and stops at the position where the buttocks end face 53 contacts the grinding surface 3 of the grinding belt 4. 5a. For this reason, the tile base 50 is held without changing the position of the bottom end face 53 with respect to the grinding surface 3, and a flat surface can be formed more accurately. Further, after the grinding surface 3 comes into contact with the buttocks end face 53 and then rotates, the grinding surface 3 is temporarily moved back together with the grinding belt 4 in a direction away from the conveyor 2. Since the pressing is stopped, the bottom end face 53 does not move following the grinding surface 3. Further, at the time of grinding, the grinding surface 3 advances in a direction approaching the conveyor 2 and grinds the butt end surface 53 by the set thickness, but the butt end surface 53 is supported by the pressing portion 5a from the rear. Since it does not move, a desired amount of grinding can be achieved by controlling the advance distance of the grinding belt 4.

  Furthermore, the head end surface pressing means 5 includes first pressing means 5A and second pressing means 5B for independently pressing the vicinity of both end portions of the end surface of the head 51. How the bottom end face 53 of the tile base material 50 to be ground is deformed by the first pressing means 5A and the second pressing means 5B that respectively press the vicinity of both end portions of the end face of the head 51 independently. Even if it exists, since the 1st press means 5A and the 2nd press means 5B each press the both end part vicinity of the end surface of the head 51 until the bottom end surface 53 of the tile base 50 contacts the grinding surface 3, it is more reliable. A flat surface can be formed.

  As shown in FIG. 3, the tile base lifting / lowering means 6 is for raising and lowering the tile base 50 placed on the conveyor 2, and at the time of grinding, the tile base 50 is lifted to a portion where the grinding surface 3 is located. After the grinding, the tile base 50 functions to be lowered and placed on the conveyor 2.

  As shown in FIG. 1, the roof tile lifting / lowering means 6 includes a first roof tile lifting / lowering means 6A and a second roof tile lifting / lowering means 6A for lifting and lowering the vicinity of both ends of the bottom 52 of the roof tile 50 to be ground on the grinding belt 4 side. The roof tile lifting / lowering means 6B and the third roof tile lifting / lowering means 6C for lifting and lowering the vicinity of the center of the head 51 of the roof tile base 50 to be ground are supported and lifted by supporting the roof tile base to be ground at three points. It is configured. Thus, since the tile base lifting means 6 supports the tile base 50 to be ground at three points, rattling may occur when supporting the tile base having different deformation conditions at four or more points. The tile base 53 can be supported from below in a stable state without such a situation, and stable grinding becomes possible. Further, in addition to supporting at three points, the vicinity of both ends of the bottom portion 52 on the side to be ground is supported at two points, so that more stable grinding can be performed.

  An air cylinder is used as the tile base lifting means 6, and the first to third tile base lifting means 6A, 6B, 6C are raised and lowered in contact with the back surface of the tile base 50 according to the type of the tile. It is comprised so that the raising / lowering amount of a contact part can be set, respectively.

  Further, as shown in FIG. 3, the head end face pressing means 5 and the tile base lifting means 6 have a main body (cylinder main body) fixed to a frame 14, and the frame 14 is centered on a rotating shaft 15. 3 is configured to be rotatable in the direction of arrow h in FIG. This may be at a position where the center of gravity is inclined depending on the form of the tile base, etc. In order to make such a tile base stand on its own, it may be necessary to form the end face of the bottom part slightly on the inclined surface. Because. More specifically, when the frame 14 is rotated and fixed upward, the end face of the butt portion comes into contact with the grinding surface 3 while being inclined. By grinding in this state, an inclined flat surface can be formed on the butt end surface, and an inclined flat surface having a desired inclination angle can be formed on the butt end surface by adjusting the rotation amount.

Below, the usage method of the edge part end surface grinding apparatus 1 of a tile base is demonstrated.
The tile base 50 dried through the drying step is first placed on the upper surface of the belt of the conveyor 2 in a stopped state as shown in FIG. Next, these tile bases 50 are lifted and lifted from below (rear side) by the first tile base lifting means 6A, the second tile base lifting means 6B, and the third tile base lifting means 6C. Next, the piston rods of the head end surface pressing means 5A and 5B extend in the i direction in FIG. 3, and the pressing portion 5a presses the end surface of the head 51 of the tile base 50 to the grinding surface 3 to the bottom end surface. 53 is brought into contact. When the bottom end surface 53 comes into contact with the grinding surface 3, the pressing portion 5 a stops, so that the position of the tile base 50 does not change thereafter.

  Then, the grinding surface 3 is once separated from the bottom end surface 53 (retracted from the conveyor 2). Thereafter, the grinding belt 4 is rotated by the driving of the grinding belt rotating motor 8 and advances toward the conveyor 2 while rotating to grind the tail end face 53 by the set thickness. When the grinding is completed, the piston rods of the head end surface pressing means 5A and 5B contract, and the pressing portion 5a is separated from the end surface of the head 51 of the roof tile 50. Next, the respective tile bases 50 are lowered by the first tile base lifting / lowering means 6A, the second tile base lifting / lowering means 6B, and the third tile base lifting / lowering means 6C and placed on the belt upper surface of the conveyor 2 in the stopped state.

  The tile base end surface grinding apparatus 1 of the present invention takes about 13 seconds for the grinding, of which the grinding time is about 2 seconds, and the bottom end surfaces of the six tile bases are quickly and accurately ground. can do. Thereafter, the tile base 50 having the bottom end face 53 ground to a flat surface is conveyed to the glaze application process or the firing process by driving the conveyor 2.

  The bottom end surface grinding apparatus 1 for the tile base of this embodiment does not have a mechanism for holding the tile base 50 from the upper surface side during grinding, but the tile base is transferred from the drying process to the next process conveyor. A mechanism that presses the tile base 50 from the upper surface side during grinding, such as using a suction gripping tool that is generally used when the tile base is sucked and moved from the upper surface side by negative pressure suction. What is provided is also included in the category of the present invention. Further, the bottom end face grinding apparatus 1 of the tile base of this embodiment does not include a mechanism for fountaining toward the grinding portion, but has such a fountain mechanism and performs grinding while fountaining the grinding portion. Are also included in the scope of the present invention.

It is the plane schematic of one Example of the bottom part end surface grinding apparatus of the tile base material of this invention. It is the front schematic of the bottom part end surface grinding apparatus of the tile base material shown in FIG. FIG. 2 is a partially enlarged schematic view of the right side of the bottom edge grinding apparatus for tile base shown in FIG. 1. It is a top view of one Example of the tile base material ground with the bottom part end surface grinding apparatus of the tile base material of this invention. It is a front view of the tile base shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 End part grinding | polishing apparatus of a tile base material 2 Conveyor 3 Grinding surface 4 Grinding belt 5 Head end surface pressing means 6 Roof tile lifting means 7 Pulley 8 Grinding belt rotation motor 9 Grinding belt tension cylinder 10 Slide shaft 11 Grinding belt lifting means 12 Lifting shaft 13 Slide shaft 14 Frame 15 Rotating shaft 50 Roof tile
51 head 52 buttocks
53 Bottom edge

Claims (4)

  A conveyor for transporting the dried tile base in a flat state, a grinding belt with a ground surface standing upright along the transport direction on one side of the conveyor, and a bottom of the tile base on the grinding surface of the grinding belt A tile end surface grinding apparatus, comprising: a head end face pressing means for contacting the end faces. The bottom end surface grinding apparatus for the tile base has tile base lifting / lowering means for lifting and lowering the tile base placed on the conveyor, and the tile base lifting / lowering means is arranged on the grinding belt side and is to be ground A first roof tile lifting means and a second roof tile lifting means for lifting and lowering the vicinity of both ends of the bottom of the base; a third roof tile lifting means for lifting and lowering the vicinity of the center of the head of the roof tile to be ground; The bottom end surface grinding apparatus for a tile base according to claim 1, wherein the tile base to be ground is supported by three points and moved up and down.   The roof tile according to claim 1 or 2, wherein the head end surface pressing means has a pressing portion that presses a tile base to be ground and stops at a position where a bottom end surface abuts on a grinding surface of the grinding belt. Base end edge grinding machine.   The roof tile according to any one of claims 1 to 3, wherein the head end face pressing means includes first pressing means and second pressing means for independently pressing the vicinity of both ends of the head end face. Base end edge grinding machine.

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