JP5205046B2 - Coating equipment - Google Patents

Description

  The present invention relates to a coating apparatus for coating a web with a coating liquid.

  There are the following types of coating apparatuses that apply a coating liquid to a web of fabric, paper, film, metal foil or the like.

  The first type is a lip coater type coating apparatus as shown in Patent Document 1.

  The second type is a gravure type coating apparatus as shown in Patent Document 2.

  The third type is a die-type coating apparatus as shown in Patent Document 3.

The fourth type is a roll coater type coating apparatus as shown in Patent Document 4.
The fifth type is a capillary type coating apparatus that uses the capillary phenomenon as shown in Patent Document 5 to discharge the coating liquid from the slit of the nozzle and coats the web.

  Since such a coating apparatus is different in the type and application of the web to be coated, it is necessary to conduct a test study by replacing each of the coating apparatuses in a test study.

Therefore, in the past, each device was fixed to the floor with pins or bolts in the vicinity of the guide roll for guiding the web, and after that test study was completed, it was replaced with another coating device.
Japanese Patent Laid-Open No. 2-172555 JP 2004-313955 A JP 2006-346625 A JP-A-10-216590 JP 2006-122891 A

  When the coating apparatus is fixed to the floor as described above, its positioning and accuracy are important. However, when dust or dirt adheres to the floor, it is difficult to maintain the accuracy.

  Therefore, in view of the above problems, the present invention provides a coating apparatus that can ensure positioning accuracy when fixing the coating apparatus.

The present invention has a coating apparatus main body for applying a coating liquid to a web, and a fixing frame for fixing the coating apparatus main body, and the coating apparatus main body is provided at an upper front portion of the coating apparatus main body. A pair of left and right first protrusions protruding from both sides, and a pair of second protrusions protruding from the lower portions on both sides of the front surface of the coating apparatus body, and the fixed frame includes the coating apparatus body A base to be placed; a pair of left and right support walls erected from the base; and a lower part of a rear surface of the pair of left and right support walls, and the coating apparatus main body placed on the base. A pair of left and right arms that are respectively provided on both sides of the pair of left and right support walls and that lift and fix the pair of left and right first projections from below. If, have a, and an arm drive unit for rotating the pair of left and right arms, a pair of left and right first projection And a pair of left and right second protrusions projecting from the positions on both sides of the front upper portion of the coating apparatus body corresponding to the height of the pair of left and right arms on the fixed frame, respectively. It is the coating apparatus which protruded from the position of the both sides lower part of the front surface of the said coating apparatus main body corresponding to the height of a contact part .

According to the present invention, the coating apparatus main body can be accurately positioned and fixed with respect to the fixed frame.

  Hereinafter, the coating apparatus 10 of one Embodiment of this invention is demonstrated based on FIGS.

  The coating apparatus 10 of this embodiment is a lip type coating apparatus as shown in Patent Document 1, and applies a coating liquid to a web W such as a fabric, a film, a metal foil, or paper. The coating apparatus 10 includes a coating apparatus main body 12 and a fixed frame 14 that fixes the coating apparatus main body 12. The following will be described in order.

(1) Configuration of Coating Device Main Body 12 The configuration of the coating device main body 12 will be described with reference to FIGS. 3 and 4.

  FIG. 3 is a longitudinal sectional view of the coating apparatus main body 12, and FIG. 4 is a front view.

  The coating apparatus main body 12 has a pair of left and right main body support walls 18, 18 erected from the left and right sides of the main body support base 16.

  A backup roll 20, a nozzle head 22 having a doctor edge, and a head support portion 24 for supporting the nozzle head 22 are arranged between the pair of left and right body support walls 18, 18. The head support part 24 is fixed to the pair of left and right main body support walls 18, 18 so as to be rotatable with respect to the pair of main body support walls 18.

  Cylindrical first protrusions 26, 26 protrude from outside the pair of left and right body support walls 18, 18 at the front upper part thereof.

  A pair of left and right second protrusions 28 protrude from the front lower portion of the pair of left and right body support walls 18, 18. The second protrusion 28 is a part of a roller that is rotatably embedded in the main body support wall 18.

  An air cushion transport system 30 is provided at each corner of the bottom surface of the main body support 16. These air cushion transport systems 30 spray air on the air cushion to lift the coating apparatus main body 12 and make it movable. In place of these air cushion transport systems 30, casters may be used.

(2) Configuration of Fixed Frame 14 Next, the configuration of the fixed frame 14 will be described with reference to FIGS. 5 and 6.

  The fixed frame 14 has a base 32 fixed to the floor, and a pair of left and right support walls 34, 34 are erected from the base 32. For example, five guide rolls 36, 38, 40, 42, 44 are installed between the pair of left and right support walls 34, 34 so as to be horizontally rotatable.

  Arms 46 are provided outside the pair of left and right support walls 34 so as to be rotatable about a rotation shaft 48. The mounting position of the arm 46 is a position corresponding to the first protrusion 26 of the coating apparatus main body 12. A key portion is formed at the front portion of the arm 46, and the lower end of the cylinder portion of the air cylinder 50 is attached to the base portion, which is the rear end portion, via an attachment shaft. When the cylinder portion of the air cylinder 50 extends downward, the key portion of the arm 46 is raised by rotating around the rotation shaft 48, and when the cylinder portion of the air cylinder 50 is contracted upward, the key portion of the arm 46 is lowered.

  The rear surface of the support wall 34 (hereinafter, this portion is referred to as “contact portion”) is located at a position corresponding to the second protrusion 28 of the coating apparatus main body 12.

(3) Fixing method of coating apparatus main body 12 Next, a method of fixing to the fixing frame 14 of the coating apparatus main body 12 will be described with reference to FIGS.

  The air cushion transport system 30 of the coating apparatus main body 12 is placed on the base 32 and further brought closer to the pair of left and right support walls 34.

  When the first protrusion 26 comes above the arm 46, when the key part of the arm 46 is lifted by the air cylinder 50, the first protrusion 26 is lifted by the key part of the arm 46. When the first protrusion 26 is lifted by the arm 46, the entire coating apparatus body 12 rotates around the first protrusion 26, and the second protrusion 28 contacts the contact portion of the support wall 34. The coating apparatus main body 12 is fixed to the fixed frame 14.

  In addition, the distance which lifts the 1st protrusion 26 with the arm 46 is about 5 mm.

(4) Operation of the coating apparatus main body 12 After the coating apparatus main body 12 is fixed to the fixed frame 14 as described above, the web W is passed through the guide rolls 36 to 42, and then the back roll 20 of the coating apparatus main body 12. The web W is again passed through the guide roll 44 of the fixed frame 14 through the web W.

  When the web W is run, the coating liquid can be applied from the nozzle head 22 to the lower surface of the web W.

(5) Effect According to the present embodiment, the pair of left and right first protrusions 26 and 26 are lifted by the pair of left and right arms 46 and 46, and the pair of left and right second protrusions 28 and 28 are lifted by the pair of left and right support walls 34, Positioning can be ensured by abutting on the abutting portion 34.

  Further, since the coating apparatus main body 12 is fixed in a state where it is lifted about several millimeters from the base 32 of the fixed frame 14, even if dust or dirt is present on the base 32, positioning is not affected by it. Can do.

  In addition, since the first protrusion 26 and the second protrusion 28 are simply provided on the coating apparatus main body 12 and the arm 46 is provided on the fixed frame 14, the positioning can be reliably performed with a simple structure.

(6) Modification Examples The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist thereof.

  In the above-described embodiment, the lip coater type coating apparatus main body 12 is used. However, other than this in the test research, the gravure type coating apparatus, the die type coating apparatus, the roll coater type coating apparatus, the capillary tube, etc. The same applies to the case where the mold coating apparatus is fixed to the fixed frame 14.

  In the above embodiment, the air cylinder 50 is used as a means for rotating the arm 46, but a hydraulic cylinder or a motor may be used instead.

It is a side view of the coating device which shows one Embodiment of this invention. It is a front view of a coating apparatus. It is a longitudinal cross-sectional view of the coating apparatus main body. It is a front view of a coating device main body. It is a side view of a fixed frame. It is a front view of a fixed frame.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Coating apparatus 12 Coating apparatus main body 14 Fixed frame 22 Nozzle head 26 1st protrusion 28 2nd protrusion 30 Air cushion transport system 32 Base 34 Support wall 36 Guide roll 46 Arm 48 Rotating shaft 50 Air cylinder

Claims (5)

A coating apparatus main body for applying a coating liquid to the web; and a fixing frame for fixing the coating apparatus main body,
The coating apparatus body is
A pair of left and right first protrusions respectively protruding from both sides of the front upper part of the coating apparatus body;
A pair of left and right second protrusions protruding from the lower portions on both sides of the front surface of the coating apparatus body;
Have
The fixed frame is
A base on which the coating apparatus main body is placed;
A pair of left and right support walls erected from the base;
An abutting portion provided at a lower part of a rear surface of the pair of left and right support walls, and abutting portions with which the pair of left and right second protrusions of the coating apparatus main body placed on the base are in contact;
A pair of left and right arms provided on both sides of the pair of left and right support walls, respectively, for lifting and fixing the pair of left and right first protrusions from below;
An arm driving section for rotating the pair of left and right arms;
I have a,
The pair of left and right first protrusions protrude from positions on both sides of the front upper portion of the coating apparatus body corresponding to the height of the pair of left and right arms in the fixed frame,
The pair of left and right second protrusions protrudes from the positions of the lower portions on both sides of the front surface of the coating apparatus body corresponding to the height of the pair of left and right contact portions in the fixed frame.
Coating equipment. Between the pair of left and right support walls of the fixed frame, a guide roll for guiding the web to the coating apparatus main body is rotatably mounted.
The coating apparatus according to claim 1. The coating apparatus main body has a lip coater type coating part, a gravure type coating part, a roll coater type coating part, a capillary type coating part, or a die type coating part,
The coating apparatus according to claim 1. On the bottom surface of the coating apparatus main body, an air cushion transport system for moving the coating apparatus main body, or a caster is provided.
The coating apparatus according to claim 1. The drive unit of the arm is an air cylinder, a hydraulic cylinder, or a motor.
The coating apparatus according to claim 1.

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