JPS61291063A - Coater table - Google Patents

Abstract

PURPOSE:To smoothly perform the running of a coater by surely sucking an article to be coated by preventing the levitation thereof, by providing a suction groove continuing to the running direction of a coater to the area at least corresponding to the suction surface of the article to be coated. CONSTITUTION:A table main body 20 is formed as a hollow one so as to be communicated with an external sucking machine and an suction surface 21 can suck an object 22 to be coated by the suction force of said sucking machine. A suction groove 34 continuing to the running direction of a coater 23 is provided to the area 33 corresponding to the coater slide region 32 of the sucking surface 21. By this method, the object 22 to be coated can be linearily sucked in the running direction of the coater 23 and it can be prevented that a recessed part inevitably generated at the time of sucking exerts effect to the running of the coater 23 and a good film can be formed.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a coater table that has a suction surface that can adsorb an object to be coated under reduced pressure, and that allows a coater to run by partially sliding on the upper surface of the object to be coated. It is related to.

[Background of the invention]

As shown in FIGS. 5 and 6, the conventional coater table of this type has a suction surface 2 provided with numerous suction holes 3 that can adsorb the object 1 to be coated under reduced pressure. A coater 4 runs on the upper surface of the body 1. For example, the coater 4 has a side frame 5 in sliding contact with the upper surface of the object to be coated l, and transfers the coating liquid 8 stored between the blades 6 and 7 disposed between the side frames 5 to the blade 6 on the downstream side in the running direction. In the case of a so-called blade coater that can flow out from a gap (not shown) provided at the lower end and form a coating film 9 with a thickness corresponding to the gap, the coater is coated on the suction surface 2 corresponding to the sliding contact area A. When the round suction holes 3 for adsorbing the coated body 1 are arranged in a row, a recess (
As a result of the coater 4 moving up and down slightly while running, horizontal steps (including dents that cannot be recognized with the naked eye) are formed on the coating film 9 that flows out from the gap at the lower end of the blade installed between the side frames 5. There was a risk of forming step-like stripes in the length direction of the blade. Therefore, normally, there are suction holes 3 in the part B of the suction surface 2 corresponding to the coater sliding contact area A.
I tried not to set it.

However, the flatness of the object 1 to be coated cannot be maintained unless it is attracted with a strong adsorption force.Especially when the object 1 to be coated has a curling property such as a plastic film, the part corresponding to the coater sliding contact area A The adsorption force of B (indicated by diagonal lines in FIG. 6) became weak, and this part rose up, causing wrinkles, which impeded the runnability of the coater.

[Purpose of the invention]

In view of the above points, it is an object of the present invention to provide a coater table that can maintain a strong adsorption force in the portion opposite to the coater sliding area and also allows the coater to run smoothly.

[Structure of the invention]

In order to achieve the above object, the present invention provides a coater table which has an adsorption surface capable of suctioning the object to be coated under reduced pressure and allows the coater to run by partially sliding on the upper surface of the object to be coated. A suction groove that is continuous in the running direction of the coater is provided in at least a portion of the suction surface corresponding to the coater sliding contact area, so that the coater sliding contact area can be suctioned without creating any dents that would impede the running of the coater. This is what I did.

〔Example〕

Next, the present invention will be explained based on the embodiments shown in FIGS. 1 to 4.

20 is the table body, 21 is the suction surface of the object to be coated 22, 2
3 is a coater. The coater 23 includes a side frame 24 that comes into sliding contact with the object to be coated 22, and two blades 25 and 26 installed between the side frames 24, and a coating liquid 28 contained in a blur formed by these blades 1-27. The coating film 29 can be formed by flowing out from a gear (not shown) provided at the lower end of the blade 25 located downstream in the running direction (in the direction of the arrow in FIG. 1).

The table main body 20 is formed hollow and communicates with an external suction device 31 as shown in the fourth figure, so that the object to be coated 22 can be suctioned onto the suction surface 21 by the suction force of the suction device 31. A suction groove 34 continuous in the running direction of the coater 23 is provided in a portion 33 of the suction surface 21 corresponding to the coater sliding contact area 32 (the shaded area in FIG. 2). This allows the object 22 to be coated to be linearly attracted in the running direction of the coater 23, so that the dents that are inevitably formed during the attraction do not affect the running of the coater 23. Therefore, it is sufficient to provide the suction groove 34 only in the above-mentioned portion 33, but in this embodiment, as shown in FIG.
35d to increase the adsorption force around the object 22 to be coated. However, other parts 36
is provided with a round suction hole 37. The reason for this is that the suction groove 34 is formed by forming a small hole in the inner bottom surface of a shallow groove a as shown in the third figure, and forming the groove and the small hole takes more effort than simply forming a round hole. Of course, if this effort is not considered, the entire area of the suction surface 21 may be used as the suction groove 34.

〔Effect of the invention〕

As described above, the present invention provides a coater table which has a suction surface capable of suctioning the object to be coated under reduced pressure, and which allows the coater to run by partially sliding on the upper surface of the object to be coated. Since it is characterized by providing suction grooves that are continuous in the running direction of the coater at least in the area corresponding to the coater sliding contact area, the depressions that occur at the suction area of the coated object are continuous along the running direction of the coater, and Therefore, the coater can slide the side frame against the upper surface of the object to be coated, and transfer the coating liquid stored between the blades disposed between the side frames to the blade on the downstream side in the running direction. Even in the case of a so-called blade coater, which can flow out from a gap provided at the lower end and form a coating film with a thickness corresponding to the gap, it has excellent effects such as there is no risk of forming horizontal steps on the coating film. be.

[Brief explanation of the drawing]

1 to 4 show examples of the present invention, in which FIG. 1 is a perspective view of the applied state, FIG. 2 is a plan view of the suction surface, FIG. 3 is a partially enlarged perspective view, and FIG. 5 is a schematic front view, FIGS. 5 and 6 show a conventional example, FIG. 5 is a perspective view of the applied state, and FIG. 6 is a plan view of the suction surface. 20-table body 21-adsorption surface 22-object to be coated 23-coater 31-suction machine 3
2 - Coater sliding contact area 33 - Portion corresponding to coater sliding contact area 34 - Suction groove Patent Applicant Konishiroku Photo Industry Co., Ltd. Figure 1 Figure 2

Claims (1)

[Claims] In a coater table having a suction surface capable of suctioning a workpiece under reduced pressure and allowing a coater to run by partially sliding on the top surface of the workpiece, the coater table corresponds to at least the coater sliding contact area of the suction surface of the workpiece. A coater table characterized in that a suction groove that is continuous in the running direction of the coater is provided in a portion where the coater is coated.