JP2017124513A - Coating applicator for resin material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coating applicator for a resin material capable of preventing foreign matters such as wood chips from entering into a gap provided between a blade for adjusting a coating amount of the resin material and a coating roll to stably maintaining the coating amount to be a predetermined amount when applying the resin material such as a water sealant or adhesive onto a butt end surface of a wooden plate.SOLUTION: A coating applicator 1 for a resin material 3 comprises: a coating roll 4 for coating the resin material 3 on a butt end surface 2a of a wooden plate 2; a resin material supply roll 5 for supplying the resin material 3 to the coating roll 4; a coating amount adjusting blade 7 for adjusting an amount of the resin material 3 to be coated onto the butt end surface 2a using a gap 6 between the coating roll 4 and the coating amount adjusting blade; and a cleaning blade 8 facing a surface 4a of the coating roll 4, wherein wood chips 9 attached to the coating roll 4 can be stopped to be removed by the cleaning blade 8.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a resin material coating apparatus.

  Conventionally, by applying a resin material such as an adhesive or water-stopping agent to the surface of the wooden board and sticking a decorative sheet on the surface of the wooden board, it can be used as a watering product such as a door of a kitchen or a bathroom vanity. It is known to be a decorative board that is suitably used. Conventionally, various devices and improvements have been attempted for the production of such decorative panels. For example, as described in Patent Document 1, the present inventors also applied a water-stopping agent to the end of the wooden board in order to obtain a decorative board in which the sticking out of the adhesive from the end of the wooden board is suppressed. A coating apparatus that can make the amount predetermined is proposed.

  This device includes a water stop agent application roll and an application amount adjusting blade for adjusting the application amount of the water stop agent, and can adjust the application amount of the water stop agent by adjusting the mutual distance. It has been made possible.

  However, in the coating device described in Patent Document 1, wood chips peeled off from the wooden board, and dust such as cutting powder that is generated in the cutting process of the wooden board and falls and floats on the water-stopper storage container or the like, There is a concern of being caught between the coating roll and the blade. For this reason, in the process of continuously manufacturing a plurality of decorative plates, the application amount adjustment mechanism of the application device is used in order to suppress non-uniformity and decrease in the application amount of the water-stopping agent as the application time elapses. There was room for improvement.

JP-A-2015-199322

  The present invention has been made in view of the circumstances as described above, and a blade that adjusts the coating amount of a resin material when a resin material such as a water-stopping agent or an adhesive is applied to the end of a wooden board. It is an object of the present invention to provide a coating apparatus that can prevent dust such as a piece of wood from being caught between the coating rolls and can stably keep the coating amount of the resin material at a predetermined level.

In order to solve the above-described problems, a resin material coating apparatus according to the present invention includes a coating roll for coating a resin material on the end of a wooden board, a resin material supply roll for supplying a resin material to the coating roll, A resin material coating apparatus comprising a coating amount adjusting blade that adjusts the coating amount of the resin material on the end surface of the wooden roll with an interval between the coating roll,
Having a cleaning blade facing the surface of the application roll;
The piece of wood adhering to the coating roll is blocked by the cleaning blade and can be removed.

  According to the apparatus for applying a resin material of the present invention, when a resin material such as a water-stopping agent or an adhesive is applied to the end of the wooden board, the blade between the blade and the application roll for adjusting the application amount of the resin material is used. Further, it is possible to prevent dust such as wood chips from being bitten, and to stably keep the application amount of the resin material at a predetermined value.

It is a general | schematic top view of the coating device of the resin material of this invention. It is a general | schematic elevation view of the coating device of the resin material of this invention. (A), (B), and (C) are schematic plan process diagrams of the wood piece removal mechanism in the resin material coating apparatus of the present invention. It is the general | schematic top view which showed another embodiment of the adjustment part.

  Embodiments of the resin material coating apparatus of the present invention will be described in detail below.

  As shown in FIGS. 1 and 2, the resin material application device 1 of the present invention supplies an application roll 4 for applying the resin material 3 to the wood end surface 2 a of the wooden board 2, and supplies the resin material 3 to the application roll 4. A resin material supply roll 5 is provided. In addition, the coating apparatus 1 includes a coating amount adjusting blade 7 that adjusts the coating amount of the resin material 3 on the end surface 2 a at a distance 6 between the coating material 4 and the coating roll 4. Furthermore, the coating apparatus 1 has a cleaning blade 8 on the surface 4 a of the coating roll 4, so that the wooden piece 9 attached to the coating roll 4 can be blocked and removed.

  In the coating device 1, for example, the resin material 3 from the resin material storage tank 10 is supplied to the rotating coating roll 4 via the rotating resin material supply roll 5. The resin material adhering to the surface of the rotating application roll 4 is adjusted to a predetermined thickness by the application amount adjusting blade 7 and applied to the wooden face 2a of the wooden board 2.

  The applicator roll 4 is axially fixed so as to be rotatable about a rotary shaft 41. It is conceivable that the coating apparatus 1 includes a drive mechanism for rotating the rotary shaft 41 and a control mechanism for controlling the rotation speed and the like. The rotating shaft 41 is disposed substantially vertically. For example, as shown in FIGS. 1 and 2, the application roll 4 is a roll surface 4 a that faces the wood end surface 2 a of the wooden board 2, and the resin material 3 is applied to the end surface 2 a with a predetermined application amount and application width. I do. The shape of the applicator roll 4 is not limited as to the shape of the other part as having the roll surface 4a as described above. Regarding the shape, the stability of the rotating shaft 41, the coating performance on the end surface 2a, and the like can be taken into consideration.

  The material of the application roll 4 may be various materials such as a synthetic resin material, a rubber material, and a metal material. In consideration of the transfer characteristics of the material, it is preferable to use an inexpensive and easy-to-process material.

  The width of the roll surface 4a of the coating roll 4 may be appropriate depending on the thickness of the wooden board 2 and the required coating width of the front end surface 2a, and examples include a range of 1.0 cm to 5.0 cm. When the resin material 3 is applied to the wood surface 2a of the wood board 2, the resin on the front and back surfaces of the wood board 2 is provided regardless of whether the surface decorative material 2b is provided or not. The protrusion of the material 3 is suppressed.

  The roll surface 4a of the application roll 4 is, for example, 0.5 mm from one end in the thickness direction of the wooden surface 2a of the wooden board 2 in order to prevent the resin material 3 from protruding to the front and back surfaces of the wooden board 2. It is preferably considered that the coating is performed in contact with a portion separated by about 1.0 mm.

  Moreover, you may enable it for the application | coating roll 4 to change the position which opposes the front end surface 2a of the roll surface 4a relatively. For example, the vertical movement mechanism of the rotating shaft 41, the vertical movement mechanism of the support part of the wooden board 2, etc. are considered.

  For example, in the latter case, the coating process is performed on the wooden board 2 conveyed while being sandwiched by the belt conveyor from above and below by the coating roll 4 fixedly arranged in a position facing the front end surface 2a in advance. Is exemplified.

  The shape of the resin material supply roll 5 that supplies the resin material 3 to the application roll 4 using the resin material supply roll 5 is cylindrical, conical, as long as the resin material 3 can be stably supplied to the application roll 4. The shape is not particularly limited, such as a truncated cone shape. In this embodiment, the resin material supply roll 5 has a disk shape, and the resin material 3 is supplied from the surface thereof to the application roll 4.

  The material of the resin material supply roll 5 may be a synthetic resin material, a rubber material, a metal material, or the like. Good.

  The resin material supply roll 5 is rotatably supported around a rotation shaft 51. In the present embodiment, the rotation shaft 51 is disposed in a substantially horizontal direction and is at a position orthogonal to the rotation shaft 41 of the application roll 4. It is conceivable that the coating apparatus 1 includes a drive mechanism for rotating the rotary shaft 51 and a control mechanism for controlling the rotation speed.

  As shown in FIG. 2, a resin material storage tank 10 storing the resin material 3 is installed below the resin material supply roll 5, and the resin material supply roll 5 rotates and the resin material is positioned below the resin material supply roll 5. 3 is arranged so as to be immersed. By this immersion, the resin material 3 adheres to the resin material supply roll 5 and is transferred and supplied to the coating roll 4.

  Examples of the resin material 3 include an adhesive and a water stop agent.

  Examples of adhesives include hot-melt resins such as ethylene vinyl acetate resin, reactive urethane resin, and polyolefin, and room temperature curable resins such as urethane resin, epoxy resin, vinyl acetate resin, and vinyl urethane resin. Is done. These resins can be used alone or in combination of two or more.

  Examples of the water stop agent include diphenylmethane diisocyanate (MDI) and ultraviolet curable paint. The hot melt type resin exemplified as the adhesive is also preferably used as a water-stopping agent because of its good water-stopping property. These resins can be used alone or in combination of two or more.

  In the example of FIGS. 1 and 2, a gap 6 is provided between the coating amount adjusting blade 7 and the coating roll surface 4 a, and the coating amount of the resin material 3 is adjusted by the width of the gap 6. The A predetermined amount of the resin material 3 adhering to the roll surface 4 a of the rotating application roll 4 is applied to the wood end surface 2 a of the wooden board 2. The surplus portion of the resin material 3 removed by the coating amount adjusting blade 7 falls into the resin material storage container 10 located below and is reused.

  As shown in FIG. 1, the coating amount adjusting blade 7 is generally disposed orthogonal to the tangential direction of the rotation direction of the coating roll 4. Depending on the shape of the coating amount adjusting blade 7, the blade 7 may be inclined. It is also considered that the coating amount adjusting blade 7 has a movement adjusting mechanism for adjusting the interval 6.

  The material of the coating amount adjusting blade 7 is not particularly limited as long as it does not damage the roll surface 4a even if it contacts the coating roll 4, but for example, the use of a resin plate or a metal plate is considered. In consideration of solvent resistance, corrosion resistance, etc., for example, it is preferably used for a metal plate such as a stainless steel plate or a brass plate. In particular, since the brass plate is softer than the stainless steel plate, when used as the coating amount adjusting blade 7, the roll surface 4 a of the coating roll 4 is not shaved and the brass plate is worn away, so that the resin material 3 Less affected on application amount and application accuracy.

  In the coating apparatus 1, the cleaning blade 8 is disposed so as to face the surface 4 a of the coating roll 4 and be in a state of being substantially in contact with the surface 4 a. The arrangement position is a rotational position after the application roll 4 has applied the resin material 3 to the wood end surface 2a of the wooden board 2. And it is considered that the cleaning blade 8 also has an adjustment mechanism that can be adjusted including a case where a gap is provided in the contact state with the coating roll 4. The cleaning blade 8 can be removed from the roll surface 4 a of the application roll 4 by clogging the piece of wood 9 that is peeled off from the wood end surface 2 a of the wooden board 2 or mixed with the resin material 3 and adhered to the application roll 4. The substantially contacted state is a state in which the cleaning blade 8 is in contact with the surface 4a of the coating roll 4 and a minute interval that can clean the piece of wood 9 attached to the coating roll 4 for cleaning with the coating roll 4. An open state is included between the blade 8 and the blade 8.

  When the wood piece 9 is caught in the space 6 between the coating roll 4 and the coating amount adjusting blade 7, the wood piece 9 is removed through the steps shown in FIGS. 3 (A), (B), and (C). It is also possible to do.

  For example, FIG. 3A illustrates a state in which a piece of wood 9 is caught between the coating roll 4 and the coating amount adjusting blade 7, but the coating amount adjusting blade 7 can be moved back and forth. I will keep it. As a result, as shown in FIG. 3B, the coating amount adjusting blade 7 is moved rearward to widen the distance 6 between the coating roll 4 and the wood piece 9 is passed.

  As shown in FIG. 3C, the wooden piece 9 is blocked by the cleaning blade 8 and removed from the roll surface 4 a of the coating roll 4.

  The material of the cleaning blade 8 may be the same as that of the coating amount adjusting blade 7 or may be different. The material of the cleaning blade 8 is not particularly limited as long as it does not damage the roll surface 4a even when it comes into contact with the coating roll 4, but for example, use of a resin plate, a metal plate, or the like is considered. In consideration of solvent resistance, corrosion resistance, etc., for example, it is preferably used for a metal plate such as a stainless steel plate or a brass plate. In particular, since the brass plate is softer than the stainless steel plate, when used as the cleaning blade 8, the roll surface 4a of the coating roll 4 is not scraped, and the brass plate is worn away. Less likely to affect coating accuracy.

  The worn brass plate as the cleaning blade 8 may be replaced as appropriate, or the surface of the coating roll 4 is opposed to the surface 4a by adjusting the position of the cleaning blade 8 and substantially in contact with the surface 4a. It is also preferably considered to be in such a state.

  The coating amount adjusting blade 7 can be moved back and forth by various mechanisms. For example, the application amount adjusting blade 7 is a cylinder piston mechanism. That is, for example, an adjustment unit 71 is provided, and the adjustment unit 71 includes a core rod 71a and an outer cylinder 71b having an inner diameter that substantially matches the diameter of the core rod 71a. By drawing the core rod 71a into the outer cylinder 71b, the tip position of the coating amount adjusting blade 7 is drawn to the rear position of the arrow α in FIG.

  After the wood piece 9 has passed, as shown in FIG. 3C, the tip position of the coating amount adjusting blade 7 is indicated by the arrow β in FIG. Push up in the direction to return the spacing 6 to its original width.

  It is also possible to automate the movement of the position of the coating amount adjusting blade 7.

  Further, when a sensor element such as a piezoelectric sensor or an optical sensor is disposed at the position of the tip 7a of the coating amount adjusting blade 7 and the biting of the piece of wood 9 is detected, the coating amount as shown in FIG. A mechanism for instructing the position of the adjustment blade 7 to move in the direction of the arrow α in the figure and instructing to return to the original position when the piece of wood 9 passes is configured.

  As exemplified in FIG. 4, various mechanisms are also considered, including a mode in which the coating amount adjusting blade 7 rotates in the direction of the arrow γ in the drawing to widen the interval 6.

  By using the resin material applicator 1 as described above, when applying a resin material such as a water-stopping agent or an adhesive to the end of the wooden board, a blade and an application roll for adjusting the application amount of the resin material, It is possible to prevent dust such as a piece of wood from being caught in the space provided between the two, and to stably keep the application amount of the resin material at a predetermined amount.

  As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited to said embodiment at all, A various change is possible within the range which does not deviate from the summary.

DESCRIPTION OF SYMBOLS 1 Resin material application apparatus 2 Wood board 2a Wood end surface 2b Surface decoration material 3 Resin material 4 Application roll 4a Surface 5 Resin material supply roll 6 Space | interval 7 Application amount adjustment blade 71 Adjustment part 71a Core rod 71b Outer cylinder 8 Cleaning blade 9 Wood chip 10 Resin material storage tank

Claims (2)

An application roll for applying a resin material to the wooden end of the wooden board, a resin material supply roll for supplying the resin material to the application roll, and an amount of the resin material applied to the wooden end at an interval between the application roll A resin material coating apparatus comprising a coating amount adjusting blade to be adjusted,
Having a cleaning blade facing the surface of the application roll;
A resin material applicator characterized in that the wood pieces adhering to the applicator roll can be clogged by the cleaning blade and removed. The coating amount adjusting blade includes a mechanism for adjusting a distance between the coating roll and the coating roll, and passes the wooden piece caught in the gap between the coating roll and blocks the wooden piece by the cleaning blade. The resin material coating apparatus according to claim 1, wherein the resin material coating apparatus is excluded.

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