JP2004337778A - Edge coating dispenser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an edge coating dispenser which prevents the quality of an edge coating liquid from being deteriorated, eliminates waste of an edge coating liquid, and is adaptive even to the change in the thickness of a sheet flexibly. <P>SOLUTION: This edge coating dispenser 30 is composed of a main pipe 41, a coating pin 42, an extension pipe 44 and a flange 46. The pipe 44 is exchanged according to the thickness or the like of the sheet 12. A bar-shaped part 45 of the pin 42 is projected to the outside from a discharge port 44a of the pipe 44 to form a hollow 50 between the pipe 44 and the flange 46. When the dispenser 30 is pulled to the side of the sheet 12, The tapered upper surface 46a of the flange 46 guides the edge part 12f of the sheet 12 to the hollow 50. When the dispenser 30 is moved to the peripheral direction of the sheet 12 while supplying the resin-based edge coating liquid 35 to the main pipe 41, the liquid 35 is applied to the part 12f of the sheet 12 like a U-shape through the hollow 50. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rim coating dispenser for applying a rim coating liquid to an end portion of a sheet.
[0002]
[Prior art]
Sheets such as an imaging plate and photographic paper have various layers formed on a support. For example, in an imaging plate, a stimulable phosphor layer is formed on a plastic support, a protective layer made of a transparent resin is formed on the top surface of the stimulable phosphor layer, and on the back surface of the support. Has a protective layer made of black resin mixed with carbon black. This imaging plate is used instead of an X-ray film, and is exposed with an X-ray image of a human body or the like at the time of X-ray imaging. The stimulable phosphor layer accumulates incident X-ray energy, and emits fluorescence having an intensity corresponding to the accumulated X-ray energy when irradiated with excitation electromagnetic radiation such as a laser during image reading. An X-ray image can be reproduced by reading this fluorescence.
[0003]
Since the imaging plate is cut from a wide plate, the end surface that is the cut end is exposed. For this reason, the stimulable phosphor layer is discolored by moisture that has entered from the end face of the imaging plate, or no fluorescence is generated even when irradiated with excitation electromagnetic radiation. In order to improve this, it is conceivable to apply resin or the like to the end face of the imaging plate.
[0004]
As a means for bordering the end face of a sheet, for example, a coating apparatus described in Patent Document 1 is known. In this coating apparatus, a rotating drum is immersed in a bathtub of a radiation curable composition. A V-shaped groove is formed in the rotating drum along the rotation direction of the peripheral surface. When the sheet (radiographic screen) is moved in the direction opposite to the rotation direction of the rotating drum (horizontal direction) and the end of the sheet is put into a V-shaped groove, the radiation curable composition adheres to the end surface of the sheet and the edge Painting is done.
[0005]
[Patent Document 1]
JP 5-119198 A (Patent No. 3183936)
[0006]
[Problems to be solved by the invention]
Although the edge coating liquid, which is the radiation curable composition, is used in a bathtub that is open at the top and exposed to air, despite being mainly composed of a solvent, The solvent is scattered to cause concentration fluctuations, and the quality of the edge coating liquid is deteriorated. Moreover, since the dust and dirt adhering to the end surface of the sheet easily fall into the bathtub, there is a drawback that the quality of the edge coating liquid is deteriorated.
[0007]
In addition, since it is necessary to put much more liquid into the bathtub than the amount of liquid actually applied to the end face of the sheet, there is a disadvantage that a large amount of edge coating liquid is wasted. Furthermore, it is necessary to change the size of the groove each time the thickness of the sheet is changed. For this reason, a plurality of rotating drums having different groove sizes must be prepared in advance and replaced in accordance with the thickness of the sheet, resulting in a lot of labor and cost.
[0008]
An object of the present invention is to provide an edge coating dispenser that prevents deterioration of the quality of the edge coating liquid, eliminates waste of the edge coating liquid, and can flexibly cope with a change in sheet thickness.
[0009]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the rim coating dispenser of the present invention includes a pipe for discharging the rim coating liquid supplied from the supply port from the discharge port, and a state in which the flow path of the rim coating liquid remains in the pipe. A coating pin having an end fixed to the pipe and a tip protruding outward from the discharge port of the pipe, and a coating pin formed on the tip of the coating pin to receive the edge of the sheet to be edged. The sheet end is inserted into a recess formed between the discharge port of the pipe and the receiver, and the edge coating liquid supplied into the recess is passed through the end of the sheet. It is applied to the part.
[0010]
The coating pin is set substantially vertically so that the receiving part is on the bottom, and moves along the edge of the sheet set substantially horizontally. Moreover, the fitting part with the said pipe is formed in the rear-end part of the said coating pin, and the end surface of this fitting part is fitting with the inner wall of a pipe. In addition, the end of the sheet is inserted into the recess so that the surface side of the sheet faces the discharge port of the pipe, and the sheet surface, the back surface of the sheet, and the end surface of the sheet are applied in a U-shape with an edge coating liquid. It is.
[0011]
The main pipe for supplying the edge coating liquid, and the coating in which the rear end portion is fixed to the main pipe and the front end portion protrudes from the main pipe with the flow path of the edge coating liquid left in the main pipe. An extension pipe which is connected to the main pipe so as to surround the pin and the coating pin, and forms a flow path of the edge coating liquid between the coating pin and a tip of the coating pin protruding from the discharge port of the extension pipe A flange that receives the end of the sheet to be edged, and inserts the end of the sheet into the recess formed between the outlet of the extension pipe and the flange. Is applied to the edge of the sheet.
[0012]
The coating pin is set substantially vertically so that the flange is on the bottom, and moves along the end of the sheet set substantially horizontally. Further, a flat plate portion is formed at the rear end portion of the coating pin, and the end surface of the plate portion is fitted to the inner wall of the main pipe. Further, the end of the sheet is inserted into the recess so that the surface side of the sheet faces the discharge port of the extension pipe, and the surface of the sheet, the back surface of the sheet, and the end surface of the sheet are applied in a U shape with the rim coating liquid. Is.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
In FIG. 1 and FIG. 2 showing the edging apparatus equipped with the edging dispenser of the present invention, a suction table 13 for adsorbing a rectangular sheet 12 is provided at the center of the work table 11, and a rectangular shape is provided around the suction table 13. A groove 14 is formed in a frame shape. For example, an imaging plate is used as the sheet 12.
[0014]
As shown in FIG. 3, the sheet 12 has a stimulable phosphor layer 17 formed on a plastic support 16. A protective layer 18 made of a transparent resin is provided on the upper surface of the stimulable phosphor layer 17. A protective layer 19 made of a black resin is provided on the lower surface of the support 16. Carbon black is mixed in the protective layer 19 and absorbs the fluorescence emitted from the stimulable phosphor layer 17.
[0015]
The end surface 12a of the sheet 12 has an edge 12c on the front surface 12b side cut obliquely by chamfering, and an edge 12e on the back surface 12d side is vertically cut and processed. The end portion 12f of the sheet 12 indicates a rough portion including the end surface 12a, the edge 12c, and the edge 12e. Moreover, the code | symbol 35a is a protective film formed by hardening | curing the resin liquid 35 mentioned later. The reason why the edge 12c is chamfered is that when the sheet 12 is transported inside an X-ray apparatus or the like, the stimulable phosphor layer 17 that is vulnerable to external impacts does not easily come into contact with the transport path or the like. It is. Thereby, since the physically strong support body 16 takes in the impact from the outside, durability of the whole sheet | seat 12 improves.
[0016]
The suction table 13 is formed with a large number of holes 13 a that pass through the back side of the work table 11, and these holes are connected to the compressor 23 via the adapter 21 and the tube 22. The suction table 13 is formed to be slightly smaller than the size of the sheet 12, and the periphery of the sheet 12 protrudes into the groove 14.
[0017]
A known XY moving device 26 is provided above the work table 11. The XY moving device 26 has an elongated rectangular bar shape that moves in the short side direction (X direction) and an X direction moving member 27 that is provided on the upper side and moves in the longitudinal direction (Y direction) of the X direction moving member 27. And a Y-direction moving unit 28.
[0018]
The Y-direction moving unit 28 is provided with a pair of clamping members 29, and the edge coating dispenser 30 according to the first embodiment of the present invention is held by the clamping members 29. Further, the Y-direction moving unit 28 is provided with a sensor 31 that detects the end 12f of the sheet 12, and a computer (not shown) is operated by the computer (not shown) according to the position information of the end 12f output from the sensor 31. To control.
[0019]
A syringe 33 is connected to one end of the rim coating dispenser 30 via a tube 32 formed of silicon rubber. The syringe 33 is filled with a transparent resin liquid 35 as an edge coating liquid, and the eccentric disk-shaped cam 36 is rotated by a motor, whereby the moving member 37 of the syringe 33 is gradually moved. The resin liquid 35 is pushed out from the syringe 33 and supplied to the supply port 30 a of the edge coating dispenser 30 through the tube 32. In addition, as the resin liquid 35, for example, a transparent adhesive that cures when the solvent is scattered is used.
[0020]
As shown in FIG. 4, the edge coating dispenser 30 is formed on the outer peripheral surface 43 a of the stepped portion 43 having a diameter smaller than that of the main pipe 41 to which the tube 32 is connected, the coating pin 42 to be inserted therein, and the main pipe 41. The extension pipe 44 is inserted and extends the length of the main pipe 41. A plurality of extension pipes 44 having different lengths and diameters are prepared in advance, and are exchanged according to the thickness of the sheet 12 and the coating width d1 from the edge 12b (see FIG. 3). The application width d1 is determined by the outer diameter of the extension pipe 44 on the discharge port 44a side.
[0021]
The coating pin 42 includes an elongated cylindrical rod-shaped portion 45, a disc-shaped flange 46 fixed to one end portion thereof, and a strip-shaped flat plate portion 47 that is a fitting portion with the main pipe 41. An end surface 47 a on the short side of the flat plate portion 47 is fixed to the central portion of the other end portion of the rod-like portion 45. Further, after fitting the coating pin 42 into the main pipe 41, the outer diameter of the flange 46 is formed smaller than the inner diameter of the discharge port 44 a in order to fit the extension pipe 44 into the stepped portion 43 of the main pipe 41.
[0022]
The short side of the flat plate portion 47 is slightly shorter than the inner diameter of the main pipe 41. When the flat plate portion 47 is inserted into the cavity of the main pipe 41, the end surface 47b in the longitudinal direction of the flat plate portion 47 (more precisely, The edge of the end face 47b abuts the inner wall 41b, and the coating pin 42 is fixed in the main pipe 41 (see FIGS. 5 and 6).
[0023]
By inserting the flat plate portion 47 into the main pipe 41, as shown in FIG. 6, a pair of flow passages 48 having a half-moon-shaped opening are formed between the flat surface 47c of the flat plate portion 47 and the inner wall 41b. The resin liquid 35 reaches the peripheral surface 45 a of the rod-like portion 45 through the flow path 48. The flat plate portion 47 is inserted into the main pipe 41 so that the end surface 47a is substantially flush with the end surface of the main pipe 41 on the discharge port 41a side.
[0024]
The flange 46 receives the resin liquid 35 that hangs down along the peripheral surface 45a of the rod-like portion 45, and applies the resin liquid 35 to the back surface 12d side of the sheet 12 by the application width d2 (see FIG. 3). The resin liquid 35 has an appropriate viscosity that does not easily drop downward from the flange 46.
[0025]
Further, as shown in FIG. 7, a recess 50 is formed by the end portion of the extension pipe 44 on the discharge port 44a side, the peripheral surface 45a of the rod-like portion 45 protruding from the discharge port 44a, and the upper surface 46a of the flange 46. . The end 12f of the sheet 12 is inserted into the recess 50, and the edge coating of the sheet 12 is performed.
[0026]
The upper surface 46a of the flange 46 is tapered. Thus, when the dent dispenser 30 is moved toward the sheet 12 side after the recess 50 is substantially aligned with the end 12f of the sheet 12, the edge 12e of the sheet 12 is obtained even if the sheet 12 is not kept completely horizontal. Is in contact with the upper surface 46 a, and the edge 12 e faces the joint portion 49 between the rod-shaped portion 45 and the flange 46 so that the upper surface 46 a guides the end 12 f of the sheet 12 toward the peripheral surface 45 a of the rod-shaped portion 45. Therefore, it is not necessary to align the recess 50 and the end portion 12f of the seat 12 with high accuracy, so that it is possible to eliminate the skill of the worker and more accurate control of the XY moving device 26.
[0027]
The coupling portion 49 has a diameter smaller than that of the rod-shaped portion 45 and forms a groove 49 a between the rod-shaped portion 45 and the flange 46. Since the groove 49a captures and guides the edge 12e of the sheet 12, the positional relationship between the recess 50 and the end 12f of the sheet 12 is constant, and the thickness and application widths d1, d2 of the resin liquid 35 applied to the end surface 12a. Becomes constant. In FIG. 7, the edge 12e of the sheet 12 and the groove 49a are drawn apart from each other for easy understanding of the drawing.
[0028]
Further, the groove 49a and the tapered upper surface 46a prevent the resin liquid 35 that has reached the back surface 12d of the sheet 12 from flowing backward through the gap between the end surface 12a of the sheet 12 and the peripheral surface 45a. As a result, the protective layer 19 dissolved by the solvent contained in the resin liquid 35 is prevented from turning to the surface 12b side of the sheet 12, and the surface 12b of the sheet 12 is not contaminated black. The light receiving area of the body layer 17 can be effectively utilized to the maximum extent.
[0029]
The operation of the edge coating apparatus configured as described above will be described. First, the syringe 33 is filled with the resin liquid 35. Further, the edge coating dispenser 30 is set on the clamping member 29. Next, the sheet 12 is placed on the suction table 13 and the compressor 23 is operated. As a result, the sheet 12 is adsorbed on the suction table 13 and fixed in a substantially flat shape.
[0030]
When the operation start button of the edge coating device is turned on, the cam 36 starts to rotate by the motor, and the resin liquid 35 is gradually pushed out from the syringe 33 and sent through the tube 32 to the supply port 30a of the edge coating dispenser 30. The rotational speed of the cam 36 is kept constant so that the supply amount of the resin liquid 35 to the edge coating dispenser 30 is, for example, 70 cc per hour.
[0031]
On the other hand, when the XY moving device 26 is driven and the sensor 31 detects the end portion 12f of the sheet 12, the position of the recess 50 is adjusted to the position facing the end portion 12f of the sheet 12, and then the rim dispenser 30 is moved to the sheet. Moved to the 12 side.
[0032]
Even when the end portion 12f of the sheet 12 hangs down slightly, if the edge 12e is guided along the tapered upper surface 46a and is captured in the groove 49a, the XY moving device 26 may cause the sheet 12 of the edge coating dispenser 30 to be used. The movement toward the side is stopped, and the rim dispenser 30 is moved along the groove 14 while maintaining the positional relationship between the recess 50 and the end portion 12f of the sheet 12. The driving of the XY moving device 26 is controlled by a computer so that the moving speed of the edge coating dispenser 30 becomes constant.
[0033]
The resin liquid 35 that has entered the main pipe 41 from one end of the main pipe 41 of the rim coating dispenser 30 passes through the flow path 48 and reaches the peripheral surface 45a of the rod-like portion 45, and is then conveyed to the discharge port of the extension pipe 44. It flows into the dent 50 from 44a. Thereby, it is applied to the front surface 12b with the application width d1 determined by the diameter of the extension pipe 44 and applied to the end surface 12a, and further applied to the back surface 12d with the application width d2 by the upper surface 46a of the flange 46. As a result, the resin liquid 35 is applied to the end portion 12 f of the sheet 12 in a U shape.
[0034]
When the edge 12e of the sheet 12 is caught by the groove 49a and the vicinity of the edge 12e is in close contact with the peripheral surface 45a and does not contact the resin liquid 35, the resin liquid 35 that has flowed into the gap between the peripheral surface 45a and the end surface 12a As the rim dispenser 30 moves along the end 12f of the sheet 12 as it hangs down from the side of 12e, the bar 45 is applied to the rim 12e that passes.
[0035]
When a predetermined time elapses after the rim coating dispenser 30 passes, the resin liquid 35 is cured and covers the end surface 12a, the coating width d1 of the front surface 12b, and the coating width d2 of the back surface 12d, as shown in FIG. A protective film 35a having a U-shaped cross section is formed. Thereby, the stimulable phosphor layer 17 is shielded from moisture in the air, and discoloration of the sheet 12 is prevented.
[0036]
When the resin liquid 35 in the syringe 33 runs out, a warning buzzer is activated for the sensor to detect this and notify the maintenance staff. The maintenance staff exchanges the empty syringe 33 and another syringe filled with the resin liquid 35. Since the resin liquid 35 is hardly exposed to the air until immediately before being applied to the end portion 12f of the sheet 12, the quality of the resin liquid 35 is prevented from being deteriorated. Further, since the resin liquid 35 has only to be supplied to the gap between the extension pipe 42 and the flange 46, the waste of the resin liquid 35 can be eliminated.
[0037]
Next, another embodiment of the edge coating dispenser will be described. In FIG. 8 showing the second embodiment of the rim coating dispenser, the rim coating dispenser 52 shows the most basic configuration of the present invention, and a coating pin 54 is fitted inside a cylindrical pipe 53. The coating pin 54 includes an elongated cylindrical rod-shaped portion 55, a flat disk-shaped flange 56 fixed to one end portion, and a strip-shaped flat plate portion 57 fixed to the other end portion of the rod-shaped portion 53. .
[0038]
In the rim coating dispenser 52, as in the first embodiment, the rod-shaped portion 55 is on the end surface 12a of the sheet 12, the edge on the discharge port 53a side of the pipe 53 is on the edge of the surface 12b of the sheet 12, and the flange 56 is on the sheet 12. The resin liquid 35 is applied to each edge of the back surface 12d of
[0039]
Since the rim dispenser 52 has a simple configuration, it is possible to achieve quality prevention of the rim coating liquid and effective use of the rim coating liquid at a low cost. In addition, since the application width d1 (see FIG. 3) in which the resin liquid 35 is applied to the edge of the surface 12b of the sheet 12 is determined by the outer diameter on the discharge port 53a side of the pipe 53, when changing the application width d1, Replace pipe 53 itself.
[0040]
In FIG. 9 showing the third embodiment in which the coating width d1 can be easily changed, a rim coating dispenser 60 has a cylindrical extension pipe 62 fitted into the outer periphery of the main pipe 61 on the discharge port 61a side. As a result, the coating width d1 is determined by the outer diameter of the extension pipe 62 on the outlet 62a side. Therefore, when the coating width d1 needs to be changed, only the extension pipe 62 may be replaced with another extension pipe. Moreover, what is necessary is just to adjust the insertion position of the extension pipe 62 with respect to the main pipe 61 in order to rim the sheet | seat from which thickness differs.
[0041]
Since the flange 56 is flat, it is somewhat difficult to correctly insert the end portion 12f of the sheet 12 that is difficult to be flat into the gap between the flange 56 and the pipe 51 or the extension pipe 62. Therefore, it is necessary to control the XY moving device 26 with higher accuracy.
[0042]
In FIG. 10 which shows 4th Embodiment which improved 2nd Embodiment and 3rd Embodiment in FIG. 10, the edge coating dispenser 70 has the coating pin 72 inserted in the inner side of the main pipe 61. FIG. The coating pin 72 includes an elongated cylindrical rod-shaped portion 73, a disc-shaped flange 74 fixed to one end portion, and a strip-shaped flat plate portion 75 fixed to the other end portion of the rod-shaped portion 73.
[0043]
The upper surface 74a of the flange 74 on the rod-like portion 73 side is formed in a taper shape, and the edge portion 12f of the sheet 12 is substantially aligned with the position in the thickness direction between the flange portion 62 and the upper surface 74a, and the rim coating dispenser 70 is placed on the sheet. If it approaches to the 12th side, the edge part 12f of the sheet | seat 12 will be guide | induced to the rod-shaped part 73 side along the upper surface 74a.
[0044]
In FIG. 11 which shows 5th Embodiment, the edge coating dispenser 80 forms the flange 83 of the coating pin 82 in spherical shape. With this flange 83, the application width d2 of the back surface 12d of the sheet 12 can be minimized while maintaining the effect of guiding the end 12f of the sheet 12 to the coating pin 82 side. Further, since the spherical flange 83 requires fewer production steps than the flanges 46 and 74, the manufacturing cost of the edge coating dispenser can be reduced.
[0045]
In FIG. 12 showing the sixth embodiment, a rim coating dispenser 90 has a flange 92 having a tapered upper surface 92 a attached to a rod-like portion 95 of a coating pin 94 so as to be rotatable by a shaft 93. A spherical stopper member 96 that rotatably supports the flange 92 is fixed to the lower portion of the shaft 93, and the upper portion is fixed to the rod-like portion 95.
[0046]
In the rim coating process, when the rim dispenser 90 is moved in the circumferential direction of the sheet 12, the flange 92 rotates due to friction with the rim 12 e of the sheet 12, so that dust and dirt adhere to the end 12 f of the sheet 12. Even if it is, dust or dust is less likely to adhere to the rod-like portion 95. For this reason, the occurrence of coating defects is extremely reduced.
[0047]
When the edge coating dispenser 90 is moved by the XY moving device 26, if the stopper member 96 slides on the bottom surface of the groove 14 of the work table 11, the vertical direction of the edge coating dispenser 90 (in the drawing of FIG. 1). ) Can be kept constant. Further, the stopper member 96 is not limited to a spherical shape, and may be a disk shape, for example, as long as the flange 92 can be rotatably supported.
[0048]
Next, seventh and eighth embodiments in which the coating width d1 is changed without using an extension pipe will be described. In FIG. 13 showing the seventh embodiment, the rim coating dispenser 98 narrows the coating width d1 (see FIG. 3) by reducing the thickness of the main pipe 99 on the discharge port 99a side. In FIG. 14 showing the eighth embodiment, the edge coating dispenser 100 increases the coating width d1 by reducing the diameter of the rod-shaped portion 102 of the coating pin 101. Further, if the diameter of the rod-like portion 102 is increased, the coating width d1 can be reduced. The application width d2 can be changed by changing the outer diameter of the flange 103.
[0049]
In each of the embodiments described above, a strip-like flat plate portion is employed as a fitting portion with the main pipe for any coating pin, but the present invention is not limited to this, as shown in FIG. You may employ | adopt the cross-shaped fitting part 105 (A) and the arrow feather-like fitting part 106 (B). Moreover, although the cross section of the coating pin is a circle, the present invention is not limited to this, and may be, for example, a quadrangle, a triangle, or an ellipse.
[0050]
Moreover, in the said embodiment, although the sheet | seat to be edge-coated was an imaging plate, this invention is not limited to this, For example, photographic paper may be sufficient. The photographic paper is immersed in the developer after the exposure. If the developer soaks from the edge of the support (paper) at this time, the edge of the photographic paper may be discolored or deformed. For this reason, when the edge coating is performed by the edge coating dispenser of the present invention, it is possible to prevent the edge of the photographic paper from being discolored or deformed.
[0051]
Moreover, in the said embodiment, although the syringe was used in order to supply a resin liquid to an edging dispenser, this invention is not limited to this, For example, you may use the combination of a cylinder and a piston. Further, in the above embodiment, the supply amount of the resin liquid per unit time is always constant and the moving speed of the edge coating dispenser is fixed. For example, a sensor for monitoring the edge coating state is provided, and the edge coating operation is performed. If for some reason the balance between the amount of resin liquid supplied per unit time (resin liquid delivery speed) and the movement speed of the rim dispenser is lost, for example, if the amount of resin liquid supplied becomes excessive It is desirable to increase the moving speed of the edge coating dispenser by computer control so that the resin liquid is not always wasted.
[0052]
The resin liquid may be a two-liquid mixed type such as an epoxy resin. When the resin liquid is a two-liquid mixing type, supply the two liquids in separate tubes up to the main pipe of the rim coating dispenser so that the two liquids are mixed in the extension pipe or near the opening of the extension pipe. To do. However, since the two-component mixed type resin solution undergoes a chemical change when it is mixed and is cured in the edge coating dispenser, it must be applied at a high speed.
[0053]
【The invention's effect】
As described above, according to the rim coating dispenser of the present invention, the edge of the sheet is inserted into the dent formed between the discharge port of the pipe or the extension pipe and the receiving portion, and the rim supplied to the dent is supplied. Since the coating liquid is applied to the edge portion of the sheet, the edge surface of the sheet and the three surfaces of the front and back edges can be simultaneously edged, and the edge of the sheet can be coated with high efficiency. Moreover, since it is sufficient to discharge the edge coating liquid only into the recess, waste of the edge coating liquid can be eliminated. Further, the edge coating liquid is exposed to the air only in the dents and immediately before being applied to the sheet, so that the quality deterioration of the edge coating liquid can be prevented.
[0054]
In addition, the coating pin is set almost vertically so that the receiving part is at the bottom, and moves along the edge of the sheet that is set almost horizontally. Edge coating can be performed. In addition, a fitting portion with the pipe is formed at the rear end portion of the coating pin, and the end surface of this fitting portion is fitted to the inner wall of the pipe, so that the edge coating liquid can be formed in the pipe with a simple configuration. Can be secured.
[0055]
In addition, the end of the sheet is inserted into the recess so that the surface side of the sheet faces the outlet of the pipe, and the surface of the sheet, the back of the sheet, and the end of the sheet are applied in a U-shape with the rim coating liquid. Sheet edge coating can be performed with high efficiency. In addition, if an extension pipe is connected to the main pipe so as to surround the coating pin, the coating width on the surface of the sheet can be easily changed by replacing the extension pipe, and it is possible to deal with sheets having different thicknesses.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing a rim coating apparatus using a rim dispenser according to a first embodiment of the present invention from the side.
FIG. 2 is an explanatory view showing the edge coating apparatus shown in FIG. 1 from above.
FIG. 3 is a cross-sectional view showing a layer structure of a sheet.
FIG. 4 is an exploded perspective view showing the configuration of the first embodiment.
FIG. 5 is an explanatory diagram showing a relationship between the configuration of the first embodiment and a sheet.
6 is a cross-sectional view taken along the line VI-VI shown in FIG.
7 is an explanatory diagram showing an enlarged main part shown in FIG. 5; FIG.
FIG. 8 is an explanatory diagram showing a second embodiment.
FIG. 9 is an explanatory diagram showing a third embodiment.
FIG. 10 is an explanatory diagram showing a fourth embodiment.
FIG. 11 is an explanatory diagram showing a fifth embodiment.
FIG. 12 is an explanatory diagram showing a sixth embodiment.
FIG. 13 is an explanatory diagram showing a seventh embodiment.
FIG. 14 is an explanatory diagram showing an eighth embodiment.
FIG. 15 is an explanatory diagram showing an example of another fitting portion.
[Explanation of symbols]
11 Worktable
12 sheets
12a end face
12b surface
12c, 12e edge
12d back side
12f end
13 Suction table
26 XY moving device
30, 52, 60, 70, 80, 90, 98, 100 Edging dispenser
33 Syringe
35 Resin liquid
35a Protective film
41, 61, 99 Main pipe
41a, 44a, 53a, 61a, 62a, 99a outlet
42, 54, 72, 82, 94, 101 Coating pin
44 Extension pipe
45, 55, 73, 95, 102 Bar-shaped part
45a circumference
46, 56, 74, 83, 92, 103 Flange
46a, 74a, 92a top surface
47, 57, 75 Flat part
48 channels
49a Groove
50 dent
53 Pipe
96 Stopper member
105,106 Fitting part

Claims (8)

A pipe for discharging the edge coating liquid supplied from the supply port from the discharge port;
A coating pin in which the rear end portion is fixed to the pipe with the flow path of the edge coating liquid left in the pipe, and the front end portion protrudes outside from the discharge port of the pipe,
The coating pin is formed at the tip of the coating pin and comprises a receiving portion protruding in the radial direction of the coating pin so as to receive the edge of the sheet to be edged
The edge coating is characterized in that the edge of the sheet is inserted into a recess formed between the outlet of the pipe and the receiving portion, and the edge coating liquid supplied in the recess is applied to the edge of the sheet. dispenser. 2. The rim dispenser according to claim 1, wherein the coating pin is set substantially vertically so that the receiving portion is located downward, and moves along the edge of the sheet set substantially horizontally. 3. The edge coating according to claim 2, wherein a fitting portion with the pipe is formed at a rear end portion of the coating pin, and an end surface of the fitting portion is fitted with an inner wall of the pipe. dispenser. The end of the sheet is inserted into the recess so that the surface side of the sheet faces the discharge port of the pipe, and the surface of the sheet, the back of the sheet, and the end of the sheet are applied in a U-shape with a rim coating liquid. The edge coating dispenser according to claim 2 or 3. A main pipe for supplying the edge coating liquid;
In a state where the flow path of the edge coating liquid is left in the main pipe, the rear end portion is fixed to the main pipe, and the tip portion projects from the main pipe,
An extension pipe that is connected to the main pipe so as to surround the coating pin and forms a flow path of the edge coating liquid between the coating pin and
It is formed at the tip of the coating pin protruding from the discharge port of the extension pipe, and comprises a flange that receives the end of the sheet to be edged,
Inserting an end portion of the sheet into a recess formed between the outlet of the extension pipe and the flange, and applying the edge coating liquid supplied into the recess to the end portion of the sheet dispenser. 6. The rim dispenser according to claim 5, wherein the coating pin is set substantially vertically such that the flange faces downward, and moves along the edge of the sheet set substantially horizontally. The edge coating dispenser according to claim 6, wherein a flat plate portion is formed at a rear end portion of the coating pin, and an end surface of the plate portion is fitted to an inner wall of the main pipe. The end of the sheet is inserted into the recess so that the surface side of the sheet faces the discharge port of the extension pipe, and the surface of the sheet, the back of the sheet, and the end of the sheet are applied in a U-shape with a rim coating liquid. 8. An edging dispenser according to claim 6 or 7, characterized in that:

Images