JP2004057995A - Adhesive application device for forming l-shaped tile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a two-component liquid type adhesive is used for sticking L-shaped tiles because of a short cure time, excellent adhesive strength, and so on, but the adhesive is cured in a short time after mixing, which causes difficulty in applying it to an automated coating device. <P>SOLUTION: An adhesive application device is constituted so that, after temporalily tacking two chamfered tiles with a connecting tape, their chamfered parts are coated with the adhesive. The adhesive application device has a supply passage member 42 equipped with a base resin passage and a curing agent passage, a mixing pipe 43 of which the inlet is communicated with the base resin passage and the curing agent passage detachably attached to the supply passage member 42, an agitation means installed in the mixing pipe 43, and a discharge nozzle 44 at the lower end of the mixing pipe 43. The base resin and the curing agent are fed under pressure into the base resin passage and the curing agent passage respectively, so that the two liquids are made to flow into the mixing pipe 43 at the same time. The two liquids are agitated with the agitation means. The adhesive AB in which the two liquids are mixed is discharged to the chamfered parts of the temporalily tacked tiles TT. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an adhesive application device for forming an L-shaped tile, which applies an adhesive to an adhesion surface of the tiles in order to join two tiles in an L shape.
[0002]
[Prior art]
Conventionally, two tiles T, T (see FIG. 17) each having one side chamfered to approximately 45 ° are temporarily fixed to bendable with the connecting tape P so that the edges on the chamfered side abut each other (in this manner, they are connected). The tiles T, T are hereinafter referred to as temporary fixing tiles), and there is an adhesive applying apparatus for forming an L-shaped tile for applying an adhesive to the chamfered portion of the temporary fixing tile (see Japanese Patent Application Laid-Open No. 7-195343). .
[0003]
[Problems to be solved by the invention]
For bonding the L-shaped tiles, a two-part type adhesive is used in which the main agent and the curing agent are mixed and cured, because (a) the curing time is short and (b) the adhesive strength is excellent. However, the two-part adhesive hardens in a short time when the main agent and the curing agent are mixed, so there is a possibility that the adhesive may be clogged in the middle of the adhesive supply path, and there is a problem that the automated coating device is difficult to use. .
[0004]
The present invention has been made in view of the above, and an object of the present invention is to provide an adhesive application apparatus for forming an L-shaped tile suitable for use of a two-part adhesive.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a method of temporarily fixing two tiles having at least one side chamfered so that edges on the chamfered side abut each other so as to be bendable with a connecting tape, and chamfering the temporarily fixed tile. An adhesive applying device for forming an L-shaped tile for applying an adhesive to a portion formed as described above, wherein a supply passage member provided with a main agent passage through which a main agent of a two-part type adhesive passes and a curing agent passage through which a curing agent passes A mixing tube detachably attached to the supply passage member, wherein the main agent passage and the curing agent passage communicate with an inlet portion of the mixing tube; a stirring means provided inside the mixing tube; And a discharge nozzle provided at the lower end of the two-part adhesive, and a two-part adhesive main agent is pressure-fed to the main agent passage, and a curing agent is pressure-fed to the curing agent passage so that the two liquids flow into the mixing tube at the same time. Stir two liquids passing through It is agitated by stages, thus providing a L-shaped tile forming adhesive coating apparatus that ejects an adhesive two liquids are mixed from the discharge nozzle aiming at the chamfered portion of the temporary fixing tiles.
[0006]
The main agent and the curing agent of the two-part adhesive are in separate passages immediately before the mixing tube, and are mixed at the inlet immediately after entering the mixing tube and exit from the discharge nozzle. Therefore, even if the main agent and the curing agent are mixed and cured, the mixture is limited to the replaceable mixing tube and thereafter, and the mixing tube is replaced as needed.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an overall perspective view of an L-shaped tile forming adhesive application apparatus, FIG. 2 is a perspective view showing a connection tape application line, FIG. 3 is a front view of the connection tape application line, and FIG. FIG. 5 is an enlarged front view of an essential part of the connecting tape attaching line, in which a part of FIG. 4 is further enlarged, and FIG. 6 is an XX sectional view of FIG. FIG. 7 is an exploded perspective view showing a main part of the pressing means of the connecting tape attaching line, FIG. 8 is a partial cross-sectional plan view showing the end of the connecting tape attaching line, the transfer means, and the adhesive applying line. 10, FIG. 10 is a cross-sectional view showing a transfer means, FIG. 11 is a perspective view showing a main part of an adhesive application line, FIG. 12 is a cross-sectional view showing a main part of an adhesive application line, and FIG. FIG. 14 is a cross-sectional view of the main part with the mixing tube at the center, and FIG. Exploded perspective view of the Jo container, FIG 16 is the discharge nozzle and the first, plan view showing a relationship between the second sensor and the temporary fixing tiles, FIG. 17 is a perspective view of the temporary fixing tiles face down.
[0008]
The adhesive application apparatus for forming an L-shaped tile according to the embodiment includes a transfer tape attaching line 1, an adhesive application line 100, and a transfer of the temporary fixing tile TT from the connection tape application line 1 to the adhesive application line 100. It is schematically constituted by the mounting means 200.
[0009]
[Connecting tape attachment line]
The connecting tape attaching line 1 includes an apparatus base 3 including a transporting means 2 and an attaching unit 4 movably attached to the apparatus base 3. As shown in FIG. 3, the apparatus base 3 includes a main frame 5 and a conveyor frame 6 installed on the main frame 5. Chain wheels 7, 7 are rotatably attached to both ends of the conveyor frame 6. The conveying means 2 is a conveyor in which a large number of conveying plates 2a are joined by pins and connected endlessly, and a chain 2b on the back side of the conveying plate 2a is wound around the chain wheel 7, and the rotation of the chain wheel 7 as shown in FIG. Orbits clockwise at. A large number of prismatic engaging members 2c are fixed to the upper surface of the transport plate 2a at equal pitches in the transport means 2. The upper side between the chain wheels 7 of the conveying means 2 is a conveying surface, and the left side in FIG. 3 is the upstream portion and the right side is the downstream portion in FIG.
[0010]
In addition, the device base 3 is provided with three guide shafts 8 that slidably support the sticking unit 4, and urges the tile T toward the center of the transport plate 2 a at the upper end of the conveyor frame 6. Linear brushes 9, 9 are provided. The linear brushes 9, 9 are fastened and fixed to the conveyor frame 6 with bolts 10. By loosening and sliding the bolts 10, the linear brushes 9, 9 can correspond to tiles T of different sizes. The conveyor frame 6 is provided with a cutter 11 for cutting the connecting tape P, the details of which will be described later.
[0011]
Next, the sticking unit 4 will be described. The attaching unit 4 includes a mounting plate 12 slidably mounted on the guide shaft 8 of the device base 3, a clearance ruler 13 arranged in front of the mounting plate 12 from the upstream side, and a connecting tape P. And a pressing brush 14, a sticking roller 15, a rotating brush 16, pressing means 17, and a cover 18 for cutting.
[0012]
The gap ruler 13 is, for example, a thin metal plate having a thickness of about 0.2 mm, and is suspended and supported by a ruler arm 13 a integral with the mounting plate 12. The gap ruler 13 is located vertically above the transport surface of the transport means 2 and has a height of less than the thickness of the tile T and the height of the engaging member 2c of the transport plate 2a between its own bottom and the transport surface. The above intervals are provided. Therefore, the gap ruler 13 does not contact the transporting means 2 at all, but may contact the tile T placed on the transporting surface. The gap ruler 13 has a tapered shape toward the downstream side of the conveying means 2 as shown in FIG. It is. The height of the gap ruler 13 can be adjusted by loosening the adjustment bolt 13b with the ruler arm 13a movable up and down with respect to the mounting plate 12.
[0013]
The connecting tape P is a tape-shaped long object having an adhesive layer 19 on one surface, and is rotatably mounted on the mounting plate 12 by being wound in a roll shape. The connecting tape P is pulled out through the guide pulleys 20 and 20 in a direction in which the adhesive layer 19 faces the tile T on the transport surface.
[0014]
As shown in FIG. 4, the pressing brush 14 is located at a position where the end of the gap ruler 13 and the tip of the application roller 15 cross each other, and is provided on both sides of the gap ruler 13. The pressing brush 14 is formed by implanting a synthetic resin fiber straight downward toward the conveying surface. First, a resistance is applied to the tile T on the conveying surface so that the edge of the tile T is engaged with the engaging member 2c. Secondly, the function of pressing the tiles T, T so as not to be out of order until the connection tape P is completed is performed. The pressing brush 14 is vertically movable with respect to the mounting plate 12, and its height can be freely adjusted by loosening the fixing screw 14a and turning the adjusting screw 14b.
[0015]
The sticking roller 15 is formed by winding a sponge rubber elastic ring 15b around the outer periphery of a metal wheel 15a, and is rotatably mounted on a free end of a swingable swing arm 15c. As described above, the tip of the gap ruler 13 is slightly below the sticking roller 15, so that the tiles T that are conveyed and come off the gap ruler 13 dive below the sticking roller 15. The swing arm 15c is vertically movable with respect to the mounting plate 12, and its height can be freely adjusted by loosening the fixing screw 15d.
[0016]
The rotating brush 16 is made of synthetic resin fibers planted on the entire circumference of the disk 16a. The rotating brush 16 always rotates counterclockwise in FIG. 3 and rubs the upper surface of the tile T conveyed by the conveying means 2. It is in. The rotating brush 16 is vertically movable with respect to the mounting plate 12, and its height can be freely adjusted by loosening the fixing screw 16b and turning the adjusting screw 16c.
[0017]
The pressing means 17 includes a cylinder 17b for expanding and contracting a rod 17a by liquid pressure or gas pressure, and an elastic body 17c attached to a lower end of the rod 17a. The elastic body 17c is made of, for example, sponge rubber having appropriate hardness and elasticity, and is fixed to the back surface of the metal substrate 17d with an adhesive as shown in FIG. The elastic body 17c is fixed to the lower end of the cylinder 17b integrally with the board 17d with a bolt 17e, and can be replaced together with the board 17d according to the size of the tile T.
[0018]
The cutting cover 18 corresponds to the cutter 11 provided on the apparatus base 3, and includes a transparent synthetic resin top plate 18a and two pressing brushes vertically provided on both sides of the top plate 18a. 18b and 18c. The cutter 11 of the apparatus base 3 is directly connected to a driving means (not shown) such as an air cylinder or a motor, and performs a reciprocating linear motion in a direction orthogonal to the paper surface in FIG. Then, the connecting tape P is cut. The top plate 18a of the cutting cover 18 and the two pressing brushes 18b and 18c cover the range in which the cutter 11 moves, thereby preventing accidents caused by the cutter 11. Further, when the connecting tape P is cut by the cutter 11, the two pressing brushes 18b and 18c play a role of holding down the tile T and increasing the reliability of the cutting. The cutting cover 18 is vertically movable with respect to the mounting plate 12, and its height can be freely adjusted by loosening the fixing screw 18d and turning the adjusting screw 18e.
[0019]
Next, the operation of the connecting tape attaching line 1 will be described. First, before operating the connecting tape attaching line 1, the attaching roller 15 is flipped upward as shown by a two-dot chain line in FIG. 5, the connecting tape P is pulled out, and is passed between the pressing brushes 14 via the guide pulley 20. At the same time, the leading end is attached to the transport plate 2a of the transport means 2, and then the adhesive roller 15 is returned to the original state as shown by the solid line in FIG. This operation need only be performed once at the beginning.
[0020]
Next, two tiles T, T with one side chamfered, are placed on the upstream part of the conveying means 2 with the gap ruler 13 interposed therebetween. The tile T faces upward and the chamfered edge faces the gap ruler 13. Then, as shown in FIG. 6, both tiles T, T are pressed by the linear brushes 9, 9 of the conveyor frame 6, and respectively contact the gap rulers 13 (see the enlarged view Z). When the transporting means 2 is operated in this state, the tiles T, T move on the transporting plate 2 a and first strike the pressing brush 14. Since the pressing brush 14 applies resistance to the tiles T in the direction of hindering the conveyance, if the edges of the tiles T, T do not contact the engaging member 2c of the conveying means 2, the conveying plate is brought into contact with the engaging member 2c until it engages. The tiles T slide on the upper surface of 2a. Then, when the engaging members 2c hit the edges of the tiles T, T, the tiles T, T are pushed by the engaging member 2c, and move forward while dive below the holding brush 14.
[0021]
Next, the tiles T, T reach the end of the gap ruler 13 as shown by the two-dot chain line in FIG. 5, and the sticking roller 15 is placed on the upper surface of the tiles T, T at that point. Since the connecting tape P passes between the gap ruler 13 and the attaching roller 15 as described above, when the attaching roller 15 is put on the upper surface of the tiles T, T, the connecting tape P is placed on the surface of the tiles T, T. Stick. At this time, the metal wheel 15a of the sticking roller 15 becomes a weight and presses the connecting tape P moderately, and the elastic ring 15b of the sticking roller 15 exerts a cushioning effect to tie the connecting tape P to the tiles T, T. Apply to the surface.
[0022]
Until the connecting tape P is stuck to the tiles T, T, the elasticity of the linear brushes 9, 9 and the pressing brush 14 restricts the movement of the tiles T, T. The gap between them does not go out of order.
[0023]
Next, the tiles T and T move on the transport plate 2a and go under the rotating brush 16. The rotating brush 16 is rotating clockwise in FIG. 3 and rubs the connecting tape P to press it against the tiles T, T surface. Further, the tiles T, T move on the transport plate 2a and stop immediately below the pressing means 17. In this state, the rod 17a of the pressing means 17 descends, and presses the connecting tape P against the tiles T, T while elastically deforming the elastic body 17c. Then, the elastic body 17c is deformed in accordance with the irregularities of the tiles T, T, and the connecting tape P adapts to the irregularities of the tiles T, T, so that the connecting tape P adheres tightly to the tiles T, T surface.
[0024]
Next, the transporting means 2 operates to move the tiles T, T again, and stop at the position where the tip enters the cutting cover portion 18. In this state, the cutter 11 advances toward the front of the drawing in FIG. 4, cuts the connecting tape P, and returns. Then, the transporting means 2 operates to move the tiles T again and stop at the position where the rear end is left in the cutting cover portion 18. In this state, the cutter 11 operates to cut the connecting tape P. In this way, a temporary fixing tile TT connected by the connecting tape P and having the surplus portions PP at both ends as shown in FIG. 17 is obtained.
[0025]
When changing the size of the tiles T, T..., The fixing screw 21 is loosened in FIG. 6, the mounting plate 12 is slid in the direction traversing the conveying means 2, and the fixing screw 21 is tightened according to the size of the tile T. Just fine. By doing so, the sticking unit 4 moves integrally. If necessary, the linear brushes 9, 9 are also moved.
[0026]
Note that the tiles T, T,... May be continuously supplied onto the conveying means 2 in accordance with the interval between the engaging members 2c. Then, as shown in FIG. 4, the preceding tiles T, T and the subsequent tiles T, T are conveyed in a state of being connected by one connecting tape P. , T and the center of the subsequent tiles T, T, the connecting tape P is cut, and by repeating this, a temporary fixing tile TT as shown in FIG. 17 is obtained.
[0027]
[Transfer means]
As shown in FIG. 1, the transfer means 200 is laterally attached to an end point of the connecting tape attaching line 1, and has a square tower-shaped device frame 22 and an end point of the transporting means 2 of the connecting tape attaching line 1. And a linear transfer machine 24 that reciprocates linearly between the reverse transfer machine 23 and the adhesive application line 100. You.
[0028]
As shown in FIGS. 8 and 9, the reversing transfer machine 23 is provided with a rotating plate 26 which is pivotally mounted on a shaft between columns of the apparatus frame 22 and is rotatable. It comprises a suction box 27 movably mounted up and down, and an air cylinder 28 for driving a rotary plate 26 fixed to the apparatus frame 22. The air cylinder 28 and the rotation plate 26 are connected by meshing between a rack gear 30 attached to a rod 29 of the air cylinder 28 and a pinion gear 31 fixed to a shaft 25 of the rotation plate 26.
[0029]
On the other hand, as shown in FIGS. 8 to 10, the linear transfer machine 24 has a fixed rail shaft 32 horizontally hung between the columns of the device frame 22, and is capable of reciprocating linear movement on the rail shaft 32. , A suction box 34 attached to the support member 33 so as to be vertically movable, and an air cylinder 35 for driving the support member 33 fixed to the apparatus frame 22. When the suction box 27 of the reversing transfer machine 23 faces upward (see the two-dot chain line in FIG. 9), the upper surface of the suction box 27 is linearly transferred. It is in a positional relationship below the moving area of the suction box 34 of the machine 24.
[0030]
[Adhesive application line]
The adhesive application line 100 includes an apparatus base 36 including a transport unit, and an adhesive application unit 37 attached to the apparatus base 36. As shown in FIG. 1, the device base 36 includes a conveyor frame 38 and an endless conveyor 39 spanning the conveyor frame 38, and the starting end of the conveyor 39 is connected to the device of the transfer unit 200. It enters inside the frame 22 and below the moving area of the suction box 34 of the linear transfer machine 24. Then, the upper surface of the conveyor 39 serves as a tile placing portion on which the temporarily fixed tile TT is placed.
[0031]
As shown in FIGS. 11 to 15, the adhesive application unit 37 is attached to upper and lower two support shafts 40, which are bridged between columns that sandwich the conveyor 39 of the device frame 22. The main components of the adhesive application unit 37 are a base member 41 attached to the support shafts 40, a fixed supply passage member 42 attached to the front of the base member 41, and a central lower surface of the supply passage member 42. Pipe 43, which is detachably attached to the mixing pipe 43, a discharge nozzle 44 integrally provided at the lower end of the mixing pipe 43, a coloring agent supply means 45 attached to the upper surface of the center of the supply passage member 42, Sensor means 47 for simultaneously controlling the two pumps for feeding the agent B and the pump 46 of the colorant supply means 45.
[0032]
The base member 41 includes a lateral moving plate 49 that is supported by the supporting shafts 40 and 40 via a sliding bearing 48 so as to be laterally movable, and a vertical guide shaft 50 that is vertically fixed to the front side of the lateral moving plate 49. And a vertical moving plate 51 supported by the vertical guide shaft 50 so as to be vertically movable. The vertical moving plate 51 is connected to a horizontal moving plate 49 via an elevating screw 52, and the elevating screw 52 is rotated left or right by a top knob 53 so that the vertical moving plate 51 is moved vertically. Can be adjusted. As shown in FIG. 11, a scale member 54 is stretched between the columns of the device frame 22 in parallel with the support shaft 40, and the horizontal position of the laterally moving plate 49 can be accurately determined using the scale member 54. Can be positioned. Of course, the lateral moving plate 49 is provided with an appropriate fixing means (not shown) for the support shaft 40 separately, and can be fixed at an arbitrary position on the support shaft 40.
[0033]
The supply passage member 42 has a rectangular parallelepiped shape and is fixed to the front surface of the vertical moving plate 51 of the base member 41. The main agent passage 55 through which the main agent A of the two-component adhesive AB passes, and the hardener B through which the supply passage member 42 passes. The curing agent passage 56 and the coloring agent passage 57 through which the coloring agent C passes are provided separately without intersecting with each other. The outlets of the three passages 55, 56, 57 are provided intensively at a joint 42 a having a circular cross section protruding from the center of the lower surface of the supply passage member 42. The main agent passage 55 and the hardener passage 56 are connected to respective storage tanks (not shown) of the main agent A and the hardener B via a pipe 58 and a pump (not shown) connected to the left and right of the supply passage member 42. The main agent A and the hardener B are pumped to the main agent passage 55 and the hardener passage 56 by the operation of the pump. The path from the storage tank to the outlets of the main agent passage 55 and the curing agent passage 56 is an adhesive supply passage.
[0034]
The mixing pipe 43 is a circular pipe made of a synthetic resin, and an inlet part 43a at the top is thicker than a body part 43b, and the inlet part 43a fits into a joint part 42a of the supply passage member 42. I have. As shown in FIG. 14, a male screw 42b is formed on the outer periphery of the joint portion 42a, and a cap nut 42c is fastened to the male screw 42b to connect and fix the mixing pipe 43 to the supply passage member 42. As described above, the outlets of the three passages of the main agent passage 55, the curing agent passage 56, and the colorant passage 57 are respectively opened in the joint portion 42a. Therefore, when the mixing pipe 43 is fitted into the joint portion 42a, the joint portion 42a is in the mounted state. The main agent passage 55, the curing agent passage 56, and the colorant passage 57 communicate with the inlet portion 43a of the mixing tube 43.
[0035]
As shown in FIG. 14, a stirring means 59 is provided inside the body 43b of the mixing tube 43. The stirring means 59 has n (for example, 20) small stirring blades 59a having a height of 1 / n (for example, 1/20) of the body length (for example, 20 cm) and having a helical twist in the body 43b. ), The liquid flow is disturbed by making the spiral passage formed by the stirring blades 59a discontinuous at the joint between the stirring blades 59a. A narrowed discharge nozzle 44 is integrally formed at the lower end of the mixing pipe 43, and the liquid (adhesive AB) stirred by the stirring means 59 is discharged from the discharge nozzle 44 at an appropriate thickness. .
[0036]
Colorant supply means 45 is connected to the colorant passage 57. The colorant supply means 45 includes a cylindrical container 61 with a lid 60 for containing the colorant C, a cap-shaped piston 62 slidably housed in the cylindrical container 61, and a compression chamber in the upper chamber of the piston 62. It comprises an air pipe 63 for supplying air, a valve 64 for opening and closing the air pipe 63, and a pump 46 (for example, a gear pump) for pressure-feeding the colorant C in the cylindrical container 61 to the supply passage member 42. As shown in FIG. 15, the cylindrical container 61 has a transparent or translucent synthetic resin inner cylinder 61b loaded in a metal outer cylinder 61a, and a colorant C of the inner cylinder 61b together with the inner cylinder 61b. Perform color change. By doing so, the old and new colors are not mixed in the cylindrical container 61, and the work efficiency of the color change is very good. On the other hand, a vertically long window hole 61c is provided below the outer cylinder 61a, and the remaining amount of the coloring agent C can be confirmed from the window hole 61c. Further, the piston 62 in the cylindrical container 61 obtains the pressure of the compressed air to push out the colorant C from the inside, and thus, the colorant C is pumped in cooperation with the pump 46. Therefore, the color change of the cylindrical container 61 is performed in such a procedure that the compressed air is shut off by closing the valve 64 of the air pipe 63, the lid 60 is removed, and the inner cylinder 61a is replaced.
[0037]
The sensor means 47 is for simultaneously controlling the two pumps for pumping the main agent A and the curing agent B and the pump 46 of the coloring agent supply means 45, and as shown in FIG. A mounting seat 65 protrudes from the lower end of the moving plate 51 and is mounted on the lower surface of the mounting seat 65. The sensor means 47 is a pair of a first sensor 47a and a second sensor 47b arranged on both left and right sides of the mixing tube 43, and changes the level by irradiating a laser beam to the upper surface of the tile mounting portion. Then, the front and rear edges of the temporary fixing tile TT are detected. As shown in FIG. 16, the first sensor 47a and the second sensor 47b are provided with distances X and Y respectively before and after the discharge nozzle 44 of the mixing tube 43. For example, the distances X and Y in the embodiment are set in a range of 1 to 5 mm. As shown in FIG. 11, the first sensor 47a and the second sensor 47b are screwed to the lower surface of the mounting seat 65, and their positions can be adjusted in parallel with the conveying direction of the conveyor 39.
[0038]
Next, the operation of the transfer means 200 and the adhesive application line 100 will be described. As described above, the temporary fixing tiles TT are arranged in a line in a state where the ends of the surplus parts PP are in contact with each other at the end point of the transporting means 2 of the connecting tape attaching line 1 with the front face down. At this time, as shown in FIGS. 8 and 9, the transfer means 200 is such that the suction box 27 of the reversing transfer machine 23 faces the upper surface of the end point of the transfer means 2 and the suction box 34 of the linear transfer machine 24 is It is above the start of the conveyor 39 of the application line 100.
[0039]
In this state, as shown by the two-dot chain line in FIG. 9, the suction box 27 of the reversing transfer machine 23 is lowered, placed on the upper surface of the temporary fixing tile TT, and sucked as it is to remove a predetermined number of temporary fixing tiles TT, TT. Attach to 27. Then, as shown in FIG. 10, the rack gear 30 is lowered by the air cylinder 28, the pinion gear 31 is rotated clockwise, and the rotation plate 26 is rotated about the shaft 25 by 180 ° as shown by a two-dot chain line in FIG. Turn 27 upward. At this time, the tip of the rotating plate 26 is stopped by a stopper 66 on the device frame 22 side. The temporary fixing tiles TT, TT,... On the suction box 27 are on their backs, and the chamfers on which the adhesive AB is to be applied face upward.
[0040]
Next, the suction box 34 of the linear transfer machine 24 is slid by the air cylinder 35 and stopped at the upper surface of the suction box 27 of the reverse transfer machine 23. Then, the suction box 34 is lowered and placed on the temporarily fixed tiles TT, TT... Which are on their back, and the temporarily fixed tiles TT, TT. In this state, the suction box 34 is raised and moved to the start end of the conveyor 39 of the adhesive application line 100. At this point, the suction box 34 is lowered, and the temporary fixing tiles TT, TT,... Are placed on the upper surface of the conveyor 39 serving as the tile placement section, the suction is released, and only the suction box 34 is raised. Next, the conveyor 39 of the adhesive application line 100 is operated to send the temporarily fixed tiles TT, TT... To the adhesive application unit 37. At this time, all the temporary fixing tiles TT, TT... Are arranged in a row in a state in which the ends of the surplus parts PP, PP, which are spread over the upper surface of the tile mounting part, are in contact with each other, as shown in FIG. Lined up.
[0041]
The adhesive application unit 37 is positioned in advance so that the center of the discharge nozzle 44 is located on a line L (see FIG. 16) through which one chamfered portion of the temporary fixing tile TT passes. In addition, the two-part type adhesive AB colored by discharging all of the two pumps for pumping the main agent A and the curing agent B and the pump 46 of the colorant supply unit 45 in advance is discharged from the discharge nozzle 44, In this state, the pumps are stopped. Therefore, when each pump is operated, the adhesive AB is discharged from the discharge nozzle 44 immediately.
[0042]
Then, as shown in FIG. 16, the temporary fixing tiles TT, TT... Move on the conveyor 39 while keeping a state in which they are arranged in a line, and the first temporary fixing tile TT moves to the first position of the adhesive application line 100. When passing under one sensor 47a, first, the laser beam of the first sensor 47a hits the front edge of the temporary fixing tile TT and emits a front edge detection signal. Next, the discharge nozzle 44 passes through the front edge of the temporary fixing tile TT, and then the laser light of the second sensor 47b hits the front edge of the temporary fixing tile TT, and emits a front edge detection signal. Upon receiving the leading edge detection signal of the second sensor 47b, the three pumps operate simultaneously, and the colored two-part adhesive AB is discharged from the tip of the discharge nozzle 44. Since the discharge nozzle 44 is positioned so as to cross over the chamfered portion of the temporary fixing tile TT, the adhesive AB accurately captures the chamfered portion of the temporary fixing tile TT. In addition, since the adhesive AB is discharged by the leading edge detection signal of the second sensor 47b passing through the leading edge of the temporary fixing tile TT after the discharge nozzle 44, the adhesive AB is separated from the leading edge of the temporary fixing tile TT by the distance Y. The point inside is the start of painting. Therefore, the adhesive AB does not drop on the tile placing portion of the conveyor 39. Note that there is a slight time difference between the time when the leading edge detection signal of the second sensor 47b is issued and the time when the adhesive AB reaches the chamfered portion. Therefore, the distance Y is set to a size that allows for the time difference. Good to put.
[0043]
Once the three pumps operate, they are set to operate continuously until a stop signal is issued, so that the discharge of the adhesive AB from the discharge nozzle 44 does not stop. On the other hand, since the conveyor 39 is continuously operated, the temporary fixing tile TT also moves continuously, so that the adhesive AB becomes streaks and is applied to the chamfered portion of the temporary fixing tile TT. When this state continues, the first sensor 47a passes the trailing edge of the temporarily fixed tile TT. Then, the first sensor 47a that has detected the height difference between the temporarily fixed tile TT and the tile placement unit emits a trailing edge detection signal. The trailing edge detection signal of the first sensor 47a becomes a stop signal, and the three pumps stop at the same time, and the discharge of the adhesive AB stops. At this time, since there is a margin of the distance X from the discharge nozzle 44 to the trailing edge of the temporarily fixed tile TT, there is no possibility that the adhesive AB protrudes into the tile placement portion. Since a slight time difference occurs between the time when the trailing edge detection signal of the first sensor 47a is issued and the time when the adhesive AB stops, the distance X may be set to a size that allows for the time difference.
[0044]
The above operation is repeatedly performed until all the temporary fixing tiles TT on the conveyor 39 are exhausted. Then, the worker takes out the tacking tile TT from which the application of the adhesive AB has been completed in order from the conveyor 39, bends the tacking tile TT, pastes the chamfered portions together, cures the adhesive AB, and finally connects the adhesive tape P Peel off. The color of the adhesive AB is substantially the same as that of the tile T due to the coloring agent C. Therefore, even if the adhesive AB is present at the joint of the completed L-shaped tile, the adhesive AB is inconspicuous. Also, since the adhesive AB is applied to the inside of the temporary fixing tile TT with a space of approximately X and Y distances from the end of the temporary fixing tile TT, the adhesive AB that is likely to be generated when the temporary fixing tile TT is bent due to the blank portion. Does not protrude outside.
[0045]
By the way, since the main agent A and the curing agent B are mixed in the mixing tube 43, the curing of the adhesive AB naturally progresses, but does not clog while the adhesive AB is discharged regularly. However, when the apparatus is stopped for a long period of time during a break or the like, the adhesive AB may be hardened and clogged inside the mixing tube 43. Therefore, when the apparatus is to be stopped for a long time, an appropriate tray container (for example, a disposable cup) is set under the discharge nozzle 44, and all the pumps are automatically operated so as to periodically discharge the adhesive AB. Good to do. However, in the case where one day's work is completed and the apparatus is stopped until the next day, the amount of the adhesive AB wasted too much, which is uneconomical. Therefore, in such a case, the cap nut 42c is removed, the mixing pipe 43 is removed from the supply passage member 42, and the main agent A, the hardener B, and the colorant C attached to the tip of the joint 42a are wiped clean, and the next business A new mixing pipe 43 is attached to the supply passage member 42 and a new operation is started. This method makes the mixing tube 43 disposable, but the cost of replacing the mixing tube 43 is lower than the cost of disposing of the adhesive AB.
[0046]
In addition, in FIG. 1 and the like, reference numeral 67 denotes a transparent curtain-shaped cover that covers the front end of the connecting tape attaching line 1, and the body of the worker is placed in the rotation area of the rotation plate 26 of the reversing transfer machine 23. The purpose is to protect against accidental entry and to ensure the safety of workers.
[0047]
The embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments. For example, in the adhesive application apparatus for forming an L-shaped tile according to the present invention, the connecting tape attaching line 1 is not essential, and an operator manually creates a temporary fixing tile TT and manually feeds it to the conveyor of the adhesive application line 100. 39. Of course, in such a case, the transfer means 200 is also unnecessary. Further, even when the connecting tape attaching line 1 is provided, the structure is not limited to the embodiment, and a commercially available connecting tape attaching apparatus may be used.
[0048]
Further, in the embodiment, the coloring agent C is supplied to the outlets of the main agent passage 55 and the hardening agent passage 56, that is, the inlet portion 43a of the mixing pipe 43, but from the storage tank to the outlets of the main agent passage 55 and the hardening agent passage 56. It is possible to supply the colorant C to any of the adhesive supply paths of the above. However, the structure of the embodiment in which the colorant C is supplied to the inlet portion 43a of the mixing tube 43 is advantageous in that the amount of the colorant C and the like that must be discarded unnecessarily at the time of color change is reduced. Further, the configuration of the embodiment in which the outlet of the colorant passage 57 is provided between the outlets (preferably at the center) of the main agent passage 55 and the curing agent passage 56 is different from the main agent A at the inlet portion 43 a of the mixing pipe 43. Since the colorant C has an effect of inhibiting the mixing of the curing agent B, there is little risk that the main agent A and the curing agent B are mixed near the joint 42a, and thus the joint 42a is clogged with the cured adhesive AB. That trouble is unlikely to occur. In the embodiment, the colorant C is mixed for the purpose of making the adhesive AB less noticeable. However, even if the colorant C is not mixed, the basic function of bonding is not affected. Therefore, the colorant passage 57 is not essential in the first aspect of the present invention.
[0049]
In the embodiment, the temporary fixing tile TT moves and passes under the discharge nozzle 44 fixed by moving the conveyor 39 serving as the tile mounting portion. Alternatively, the discharge nozzle 44 may be moved, or both may be moved simultaneously.
[0050]
In the embodiment, the discharge timing of the adhesive AB is controlled by pairing the first sensor and the second sensor. However, for example, the sensor means 47 is formed by one sensor, and the front edge of the temporary fixing tile TT is After the detection, the discharge of the adhesive AB may be started after a predetermined time has elapsed, and the discharge time of the adhesive AB may be controlled by a timer. In this case, the ejection timing is set so that the adhesive AB does not protrude from the chamfered portion according to the size of the temporary fixing tile TT and the transport speed of the conveyor 39. When the timer control method and the double sensor method of the embodiment are compared, the double sensor method of the embodiment is superior in that it can flexibly cope with a change in the size of the temporary fixing tile TT without requiring any special setting change. On the other hand, the timer control method can reduce the cost because only one sensor is required. Furthermore, although a laser-type sensor is employed in the embodiment, any detection structure other than laser light may be used.
[0051]
【The invention's effect】
An adhesive application device for forming an L-shaped tile according to the present invention is a discharge nozzle that mixes a main agent and a curing agent in a detachable mixing tube and provides an adhesive mixture of the two components at the lower end of the mixing tube. , And even if the adhesive hardens, it is limited to the inside of the mixing tube. Therefore, only the mixing tube needs to be replaced when the operation is stopped for a long time. Alternatively, if there is a means (for example, low-temperature preservation) for slowing the curing speed of the adhesive in which the two liquids are mixed, a means (for example, storing in a refrigerator) necessary to reduce the curing speed of the adhesive by removing the mixing tube is provided. It is only necessary to take measures to resume operation. Thus, according to the present invention, it is possible to provide an L-shaped tile forming adhesive application apparatus suitable for use of a two-part type adhesive.
[0052]
In the adhesive application apparatus for forming an L-shaped tile according to the second aspect, since the coloring agent added to the adhesive is sufficiently mixed by the stirring means in the course of passing through the mixing tube, there is no labor for coloring. Further, if the colorant is supplied to the inlet portion of the mixing tube as in claim 3, the color can be changed without discarding the main agent and the curing agent in the main agent passage and the curing agent passage, which is economical. .
[0053]
Further, if the discharge of the adhesive is controlled using the first sensor and the second sensor as in claim 5, the adhesive can be surely applied into the chamfered portion of the temporary fixing tile, In addition, there is an advantage that the size of the temporary fixing tile can be changed flexibly without requiring any special setting change.
[0054]
In addition, if the surplus portion of the connection tape is spread on the upper surface of the tile mounting portion as in claim 6 so that the surplus portion passes under the discharge nozzle, the temporary fixing tile may be formed from the tip of the discharge nozzle. Even if the adhesive drips on a part other than the chamfered part, the surplus part receives it, so that there is no possibility that the adhesive adheres to the tile placing part. If the adhesive is attached to the tile mounting portion, it is difficult to remove the adhesive because of the strong adhesive force.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of an adhesive application device for forming an L-shaped tile.
FIG. 2 is a perspective view showing a connecting tape attaching line.
FIG. 3 is a front view of a connecting tape attaching line.
FIG. 4 is a front view of a main part of a connecting tape attaching line.
FIG. 5 is an enlarged front view of a main part of a connecting tape attaching line in which a part of FIG. 4 is further enlarged.
6 is a sectional view taken along line XX of FIG. 4 including an enlarged view Z.
FIG. 7 is an exploded perspective view showing a main part of a pressing means of the connecting tape attaching line.
FIG. 8 is a partial cross-sectional plan view showing an end of a connecting tape attaching line, a transfer means, and an adhesive application line.
FIG. 9 is a sectional view showing a transfer unit.
FIG. 10 is a sectional view showing a transfer unit.
FIG. 11 is a perspective view showing a main part of an adhesive application line.
FIG. 12 is a cross-sectional view showing a main part of an adhesive application line.
FIG. 13 is a longitudinal sectional view showing a main part of an adhesive application line.
FIG. 14 is a transverse cross-sectional view of a main part centering on a mixing tube.
FIG. 15 is an exploded perspective view showing a cylindrical container of a colorant supply unit.
FIG. 16 is a plan view showing a relationship among a discharge nozzle, first and second sensors, and a temporary fixing tile.
FIG. 17 is a perspective view in which a temporary fixing tile is turned upside down.
[Explanation of symbols]
T: Tile
TT: Temporary fixing tile
P ... connecting tape
PP: surplus part
A: Main agent
B: Curing agent
AB: adhesive
C: Colorant
39… Conveyor (Tile placing part)
42 ... Supply passage member
43 ... mixing tube
43a ... entrance part
44 ... Discharge nozzle
47a ... First sensor
47b ... second sensor
55… Main agent passage
56 ... Hardener passage
57 ... Colorant passage
59: stirring means

Claims (6)

At least two tiles having chamfered at least one side are temporarily fixed to bendable with a connecting tape so that edges on the chamfered side abut against each other (the tiles connected in this manner are hereinafter referred to as temporary fixed tiles). An L-shaped tile forming adhesive application device for applying an adhesive to the chamfered portion,
A supply passage member provided with a main agent passage through which the main agent of the two-part adhesive passes and a curing agent passage through which the curing agent passes,
A mixing pipe detachably attached to the supply passage member, wherein the main agent passage and the curing agent passage communicate with an inlet portion of the mixing tube;
Stirring means provided inside the mixing tube;
A discharge nozzle provided at the lower end of the mixing tube,
The main agent of the two-part type adhesive is sent to the main agent passage under pressure, and the curing agent is sent to the curing agent passage under pressure so that the two parts simultaneously flow into the mixing tube and the two parts passing through the mixing tube are stirred by the stirring means. An adhesive application device for forming an L-shaped tile, wherein the adhesive in which the two liquids are mixed is discharged from a discharge nozzle to a chamfered portion of the temporarily fixed tile. 2. The L-shape according to claim 1, wherein a colorant is supplied at an inlet portion of the mixing pipe or in the middle of an adhesive supply path before the mixing tube to color the adhesive in an arbitrary color. Adhesive application device for tile formation. 3. The colorant according to claim 2, wherein a colorant passage serving as a third passage is formed in the supply passage member, and the colorant is supplied to an inlet portion of the mixing tube via the colorant passage. Adhesive applicator for forming tiles. The temporary fixing tile is set on the upper surface of the tile placing part with the supine face up, and the discharge nozzle is arranged above the tile. The discharge nozzle is relatively moved by moving one or both of the tile placing part and the discharge nozzle. The L-shaped tile-forming adhesive application device according to any one of claims 1 to 3, wherein the device crosses over the chamfered portion of the temporary fixing tile. A first sensor set so that the edge of the temporary fixing tile passes before the discharge nozzle, and a second sensor set so that the edge of the temporary fixing tile passes after the discharge nozzle, are installed in front of the second sensor. 5. The adhesive for forming an L-shaped tile according to claim 4, wherein the discharge of the adhesive is started in response to the edge detection signal, and the discharge of the adhesive is stopped in response to the trailing edge detection signal of the next first sensor. Agent application device. The length of the connecting tape is set to be larger than the width of the temporary fixing tile so that the surplus portion of the connecting tape protrudes at both ends of the temporary fixing tile, the surplus portion is spread on the upper surface of the tile mounting portion, and the discharge is further performed. The adhesive application device for forming an L-shaped tile according to claim 4 or 5, wherein a surplus portion passes under the nozzle.

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