JP2005305408A - Adhesive coater - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an adhesive coater capable of selectively coating the upper and lower surfaces of a plate member with an adhesive. <P>SOLUTION: The coater is provided with a first coater 1 capable of coating the lower surface 60b of the plate member 60 with the adhesive, a second coater 2 capable of coating the upper surface 60a of the member 60 with the adhesive, and a transfer means 3 for continuously bring in/out the plate members 60 to/from the first and second coaters. The coater 1 is provided with a first coating roller 4 capable of coating the surface 60b of the member 60 with the adhesive and a first elevating means 9 for elevating the roller 4, and the coater 2 is configured by providing a second coating roller 8 capable of coating the surface 60a of the member 60 with the adhesive and a second elevating means 9 for elevating the roller 8. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an adhesive application device that applies an adhesive to the surface of a plate-like member (lamina) or the like constituting a laminated material.

  As is well known, laminated lumber is made from lamina (small board) or small timber obtained by cutting raw wood such as imported foreign timber, etc., with the fiber directions being substantially parallel to each other, and the thickness, width and length. It is formed as a square bar or a thick plate by laminating and bonding in this direction. Such laminated lumber is generally more expensive than muk lumber depending on the type of raw wood, but it is beneficial in terms of effective use of resources and is frequently used.

Such a laminated material is obtained by, for example, applying an adhesive to a lamina (plate-like member) sent by a conveyor by an adhesive application device, and further laminating the adhesive to a stacking device by a conveyor. Sent and manufactured by stacking a plurality of laminas up and down with the loading device.
The thing of patent document 1 is known as an example of the adhesive agent coating apparatus which apply | coats an adhesive agent to a plate-shaped member. In this adhesive application device, an adhesive is placed on an application roller, and the adhesive is applied to the surface of the plate member while rotating the application roller through the plate member on the application roller.
JP 2000-317918 A

By the way, when the plate-like members (lamina) constituting the laminated material are stacked one above the other and bonded with a normal adhesive, the adhesive is applied to the upper surface of the uppermost plate-like member and the lower surface of the lowermost plate-like member. do not have to.
In addition, when using a two-component mixed type adhesive that rapidly gels or hardens by mixing with each other and performs an adhesive function as the adhesive, when the plate-like members are stacked, the upper and lower surfaces facing each other are stacked. In this case, it is not necessary to apply the adhesive to the upper surface of the uppermost plate member and the lower surface of the lowermost plate member.
Thus, in order to manufacture a laminated material, when applying an adhesive agent to a plate-like member, it is necessary to apply an adhesive selectively to the upper and lower surfaces of the plate-like member. In the adhesive application device, it is unclear how to deal with such a case.

  This invention is made | formed in view of the said situation, and makes it the subject to provide the adhesive agent coating apparatus which can apply | coat an adhesive agent selectively to the upper and lower surfaces of a plate-shaped member.

In order to solve the above-described problem, the invention described in claim 1 is configured so that, for example, as shown in FIGS. An adhesive application device for applying,
A first application device 1 capable of applying an adhesive to any one of the upper and lower surfaces 60b of the plate-like member 60, and a second one capable of applying an adhesive to the other surface 60a of the plate-like member 60. A coating device 2; and a transport means 3 for continuously loading and unloading the plate-like member 60 to and from the first and second coating devices,
The first application device 1 includes a first application roller 4 that can apply an adhesive while rotating the adhesive on one surface 60 b of the plate-like member 60, and first elevating means 9 that elevates and lowers the first application roller 4. Prepared,
The second application device 2 includes a second application roller 8 capable of applying an adhesive while rotating the adhesive on the other surface 60b of the plate-like member 60, and second elevating means 9 for elevating and lowering the second application roller 8. It is characterized by having.

When the first application roller 4 is below the plate-like member 60, the first application roller 4 rises to come into contact with the lower surface 60b of the plate-like member 60 and moves downward to be separated from the plate-like member 60. To do. On the contrary, when the first application roller 4 is above the plate-like member 60, the first application roller 4 is brought into contact with the upper surface 60a of the plate-like member 60 by being lowered, and from the plate-like member 60 by being raised. Separate.
When the second application roller 8 is above the plate-like member 60, the second application roller 8 is brought into contact with the upper surface 60a of the plate-like member 60 by being lowered and separated from the plate-like member 60 by being raised. To do. Conversely, when the second application roller 8 is below the plate-like member 60, the second application roller 8 rises to contact the lower surface 60 b of the plate-like member 60 and descends from the plate-like member 60. Separate.

According to the first aspect of the present invention, when the adhesive is applied only to one surface 60 b of the upper and lower surfaces of the plate-like member 60, the first application roller 4 of the first application device 1 is moved to the first elevating means 5. Then, the adhesive is applied to the one surface 60b of the plate-like member 60 while rotating, and the second application roller 8 of the second application device 2 is secondly applied. It is raised or lowered by the lifting / lowering means 9 so as to be separated from the other surface 60a.
On the other hand, when the adhesive is applied only to the other surface 60a of the plate-like member 60, the second application roller 8 of the second application device 2 is raised or lowered by the second elevating means 9 and brought into contact with the other surface 60a. In this state, the adhesive is applied to the other surface 60a of the plate-like member 60 while rotating, and the first application roller 4 of the first application device 1 is raised or lowered by the first elevating means 5 from the one surface 60b. Keep them apart.
Further, when an adhesive is applied to the upper and lower surfaces 60a, 60b of the plate-like member 60, the first application roller 4 of the first application device 1 is raised or lowered by the first elevating means 5 and brought into contact with one surface 60b. In this state, the adhesive is applied to one surface 60b of the plate-like member 60 while rotating, and the second application roller 8 of the second application device 2 is raised or lowered by the second lifting / lowering means 9 to the other surface 60a. In this state, the adhesive is applied to the other surface 60a of the plate member 60 while rotating.
In other words, the first application roller 4 of the first application device 1 and the second application roller 8 of the second application device 2 are selectively raised and lowered by the first raising and lowering means 5 and the second raising and lowering means 9, respectively. The application roller 4 and the second application roller 8 are selectively adhered to the upper and lower surfaces 60a and 60b of the plate member 60 by selectively contacting or separating the upper and lower surfaces 60a and 60b of the plate member 60. An agent can be applied.

The invention according to claim 2 is the adhesive application device according to claim 1,
The transport means 3 is provided on the upstream side of the first coating device 1, and a first feeding device 21 that feeds the plate member 60 to the first coating device 1;
A second feeding device 22 which is provided between the first coating device 1 and the second coating device 2 and draws the plate-like member 60 from the first coating device 1 and feeds it into the second coating device 2; It is characterized by having.

  According to the invention described in claim 2, the plate-like member 60 is fed into the first coating device 1 by the first feeding device 21, and the plate-like member is fed from the first coating device 1 by the second feeding device 22. Since 60 is pulled in and sent to the second coating device 2, selective adhesive application to the upper and lower surfaces 60a, 60b of the plate-like member 60 can be performed successively one after another.

The invention according to claim 3 is the adhesive applicator according to claim 1 or 2,
The second coating device 2 includes a transport roller 13 disposed to face the second coating roller 8 with the plate-shaped member 60 interposed therebetween,
The conveying roller 13 carries out the plate-like member 60 by rotating with the plate-like member 60 sandwiched between the second application roller 8.

  According to the invention described in claim 3, since the transport roller 13 of the second coating device 2 rotates while sandwiching the plate-like member 60 with the second coating roller 8, the plate-like member 60 is carried out. That is, since the second coating device 2 has a driving force for carrying out the plate-like member 60, the plate-like member can be carried out easily and reliably from the second coating device 2 to the downstream downstream process.

The invention according to claim 4 is the adhesive applicator according to claim 3,
The second feeding device 22 includes a pair of upper and lower feeding rollers 31 and 32 that can rotate with the plate-like member 60 sandwiched from above and below,
The upper feeding roller 32 can be separated from the plate-like member 60.

  According to the fourth aspect of the present invention, of the pair of upper and lower feed rollers 31 and 32 that can rotate with the plate-like member 60 sandwiched from above and below, the upper feed roller 31 can be separated from the plate-like member 60. Therefore, by separating the upper feeding roller 31 from the plate-like member 60, it is not conveyed while sandwiching the plate-like member 60, but is supported from below by the lower feeding roller 32. Can be transported. Accordingly, when the transport roller 13 of the second coating device 2 rotates with the plate-like member 60 sandwiched between the second coating roller 8, when the plate-like member 60 is carried out, the upper side of the second feeding device 22. By separating the feeding roller 31 from the plate-like member 60, the plate-like member 60 can be smoothly passed through the second feeding device 22 and fed to the second coating device 2.

The invention according to claim 5 is the adhesive application device according to any one of claims 1 to 4,
Between the first coating device 1 and the second coating device 2 and on the downstream side of the second coating device 2, support rollers 40 that support the plate member 60 from below and can be conveyed horizontally are provided at predetermined intervals. A plurality are provided.

  According to the fifth aspect of the present invention, when the plate-like member 60 is transported from the first coating device 1 to the second coating device 2 and further transported from the second coating device 2 to the downstream next process, a plurality of the plate-shaped members 60 are transported. Since the plate-like member 60 is supported and conveyed from below by the support roller 40, the plate-like member 60 can be conveyed more smoothly.

The invention according to claim 6 is the adhesive application device according to any one of claims 1 to 5,
The adhesive applied to the upper surface 60 a of the plate member 60 is a first adhesive obtained by kneading an adhesive main agent and a crosslinking agent in advance, and is applied to the lower surface 60 b of the plate member 60. The agent is a second adhesive that promotes curing and crosslinking reaction of the first adhesive and has a lower viscosity than the first adhesive.

According to invention of Claim 6, the adhesive agent apply | coated to the upper surface 60a of the plate-shaped member 60 is a 1st adhesive agent which knead | mixes the adhesive agent main ingredient and a crosslinking agent previously, and is 2nd adhesion | attachment. Since the viscosity is high in the agent, it can remain on the second application roller 8, and therefore the first adhesive can be easily and reliably applied to the upper surface 60 a of the plate-like member 60 by the second application roller 8.
Further, the uneven application of the first adhesive particularly affects the quality of the product (glued material), but since the first adhesive is applied to the upper surface 60a of the plate-like member 60, the visual confirmation of the application state of the first adhesive is performed. It becomes easy to do. Furthermore, since the 1st adhesive agent with a high viscosity is apply | coated to the upper surface 60a of the plate-shaped member 60, when conveying this plate-shaped member 60 with conveyance means, such as a conveyor and a conveyance roller, a 1st adhesive agent becomes a conveyance means. It can prevent adhesion.
In addition, since the first adhesive is obtained by kneading the adhesive main agent and the crosslinking agent in advance, durability (water resistance, heat resistance, etc.) is improved.
The second adhesive may be applied in a small amount (for example, about 1/9 of the first adhesive) as compared with the first adhesive, but the viscosity of the second adhesive is lower than that of the first adhesive. The second adhesive can be easily and uniformly applied to the lower surface 60b.

The invention according to claim 7 is the adhesive application device according to claim 6, for example, as shown in FIGS.
The first coating device 1 can apply a second adhesive to the lower surface 60 b of the plate-like member 60, and the second coating device 2 can apply the first coating adhesive to the upper surface 60 a of the plate-like member 60. And
The first application roller 4 of the first application device 1 includes a roller body 4a and an outer periphery application part 4b wound around the outer periphery of the roller body 5a.
The outer periphery application portion 4b is characterized in that the second adhesive can be impregnated and the second adhesive impregnated by being compressed is squeezed out.

According to the invention described in claim 7, the first application roller 4 of the first application device 1 includes the roller body 4a and the outer periphery application part 4b wound around the outer periphery of the roller body 4a. Since the portion 4b can be impregnated with the second adhesive and the second adhesive impregnated by being compressed is squeezed out, the second adhesive having a low viscosity can be easily and reliably plate-shaped. It can apply | coat to the lower surface 60b of the member 60. FIG.
In other words, the second adhesive is impregnated in the outer peripheral application portion 4b, and is held by the outer peripheral application portion 4b. When the roller body 4a rotates, the outer peripheral application portion 4b is pressed against the lower surface 60b of the plate-like member 60. Rotate while. At this time, since the outer periphery application portion 4b is compressed by the lower surface 60b of the plate-like member 60, the impregnated second adhesive is squeezed out from the outer periphery application portion 4b and applied to the lower surface 60b of the plate-like member 60. . Therefore, the second adhesive having a low viscosity can be easily and reliably applied to the lower surface 60b of the plate-like member 60 without unevenness.
In order to compress the outer periphery application part 4b by the lower surface 60b of the plate-like member 60, for example, the first application roller 4 so that the outer periphery application part 4b protrudes slightly above the conveying line of the plate-like member 60. May be arranged.

The invention according to claim 8 is the adhesive applicator according to claim 7,
The first application roller 4 protrudes slightly above the lower surface 60b of the plate member 60 in a state in which the second adhesive can be applied to the lower surface 60b of the plate member 60 being conveyed,
The upper feeding roller 31 of the second feeding device 22 descends when the leading end of the plate-like member 60 reaches between the pair of feeding rollers 31 and 32, and the leading end of the plate-like member 60. The lower surface 60b of the plate-like member 60 is pressed against the first application roller 4 by pushing down.

  According to the invention described in claim 8, the feeding roller 31 on the upper side of the second feeding device 22 is configured such that when the tip of the plate-like member 60 reaches between the pair of feeding rollers 31 and 32, The lower surface 60b of the plate-like member 60 is pressed against the first application roller 4 by descending and pushing down the front end portion of the plate-like member 60. Therefore, the outer periphery application of the first application roller 4 is performed by the lower surface 60b of the plate-like member 60. The portion 4b can be reliably compressed and the second adhesive impregnated therein can be squeezed out and applied to the lower surface 60b of the plate-like member 60 with certainty.

The invention according to claim 9 is the adhesive applicator according to claim 8,
The first feeding device 21 of the conveying means 3 is provided with a pressing means 70 that presses the tip of the plate-like member 60 fed to the first coating device 1 against the first coating roller 4. And

  According to the ninth aspect of the present invention, the front end portion of the plate-like member 60 fed into the first coating apparatus 1 is moved before the front end portion of the plate-like member 60 reaches between the pair of feed rollers 31 and 32. Since the pressing means 70 presses against the first application roller 4, the second adhesive can be reliably applied to the lower surface 60 b of the front end portion of the plate-like member 60.

  According to the present invention, the first application roller of the first application device and the second application roller of the second application device are selectively raised and lowered by the first elevating means and the second elevating means, respectively. By selectively abutting or separating the second application roller and the upper and lower surfaces of the plate-like member, the adhesive can be selectively applied to the upper and lower surfaces of the plate-like member.

Hereinafter, an example of an adhesive application device according to the present invention will be described with reference to the drawings.
1 is a side view showing an outline of an adhesive application device, FIG. 2 is a front view of a second feeding device, FIG. 3 is a schematic configuration diagram showing a state in which a plate-like member is conveyed, and FIG. 4 is a second application. FIG. 5 is an exploded perspective view of a laminated material formed by laminating a plurality of plate-like members.

  First, before explaining the adhesive applicator according to the present invention, the laminated material will be explained with reference to FIG. The laminated material 50 is configured by stacking a plurality of plate-like members 60 each having adhesive surfaces (upper and lower surfaces) 60a and 60b to which an adhesive is applied. The plate-like member 60 is, for example, a plate material obtained by processing red pine, larch, fir, spruce, and other trees into a flat rectangular plate, and has a structure defined by JAS.

  Examples of the adhesive include urea resin-based adhesives, phenol-based adhesives, honeymoon adhesives, and other adhesives used for bonding wood materials. A honeymoon adhesive consists of two types of adhesive constituent materials applied to the mutually opposing surfaces of adjacent plate-like members 60. For example, an imide resin is used as the adhesive constituent material, a glyoxal is used as the adhesive constituent material, or a polymer compound having an acetoacetyl group is used as the adhesive constituent material, and an aldehyde compound or polyethyleneimine is used as the adhesive constituent material. Or what has a hydrazine compound as a main component may be used. In short, the specific type of the adhesive is not particularly limited as long as it is an adhesive that rapidly gels or hardens when superposed on each other. Furthermore, in order to improve water resistance and heat resistance, a curing agent that reacts with the adhesive constituent material may be mixed and used in advance.

The plate-like member 60 is obtained, for example, by cutting a rough material stored in a rough material storage area into a predetermined size and then cutting the top surface, the bottom surface, and the left and right side surfaces of the cut rough material. The plate-like member 60 measures the Young's modulus and is classified according to the result.
Then, the plate member of a predetermined grade is conveyed to an adhesive application device, and the adhesive is applied to the upper and lower surfaces of the plate member by this adhesive application device.

Here, when a general adhesive such as urea resin is used as the adhesive, the adhesive is applied only to the middle part of the laminated material 50 and the upper surface of the plate-like member 60 arranged at the lowest level. By overlapping the adjacent members 60, the adhesive is evenly spread on the upper and lower surfaces facing each other. On the other hand, when a honeymoon adhesive is used as the adhesive, one adhesive constituent material (adhesive) is applied to the middle part of the laminated material 50 and the upper surface 60a of the plate-like member 60 arranged at the lowest level. The other adhesive constituent material (adhesive) is applied to the lower surface 60b of the member 60 disposed in the uppermost stage and the middle part of the laminated material 50.
Hereinafter, the adhesive applicator according to the present invention will be described taking as an example the case of using a honeymoon adhesive. In the following, one adhesive constituent material applied to the upper surface of the plate-like member 60 arranged at the middle part and the lowermost layer of the laminated material 50 is referred to as an adhesive, and is arranged at the uppermost and middle parts of the laminated material 50. The other adhesive constituent material applied to the lower surface of the member 60 is referred to as a primer.
The adhesive applied to the upper surface of the plate-like member 60 is a first adhesive obtained by kneading an adhesive main agent and a crosslinking agent in advance, and a primer (adhesive) applied to the lower surface of the plate-like member 60. ) Is a second adhesive that promotes curing and crosslinking reaction of the first adhesive and has a lower viscosity than the first adhesive.

As shown in FIGS. 1 and 2, the adhesive application device includes a first application device 1, a second application device 2, and a conveying means 3.
The first coating device 1 can apply a primer (second adhesive) to the lower surface (one surface) 60b of the plate-like member 60, and the primer is applied to the lower surface (one surface) 60b of the plate-like member 60. Two first application rollers 4, 4 that can be applied while rotating, and first elevating means 5 that elevates the first application rollers 4, 4 are provided.
The first application rollers 4 and 4 are attached to a container 6 called a primer bath so as to be rotatable about an axis. The upper portions of the first application rollers 4 and 4 protrude upward from the upper end opening of the container 1. A primer is stored in the container 6, and the lower portions of the first application rollers 4 and 4 are immersed in the primer. As shown in FIG. 3, the first application roller 4 includes a roller body 4 a that is a steel free roller that is rotatably attached, and an outer periphery application portion 4 b that is wound around the outer periphery of the roller body 4 a. . This outer periphery coating portion 4b is capable of impregnating the second adhesive and squeezes out the second adhesive impregnated by being compressed. For example, felt (a wool sheet laminated with steam) )It is configured. And the outer periphery application part 4b is always wet with the primer. That is, since the lower part of the first application roller 4 is immersed in the primer, the outer periphery application part 4b of the first application roller 4 is slightly expanded by being impregnated with the primer, and is always wet with the primer.

The first lifting / lowering means 5 is composed of an air cylinder, and a plurality of piston rods are installed on the base of the first coating device 1 with the piston rod facing upward, and the container 6 is supported by the tip of the piston rod. Yes. Accordingly, the first application rollers 4 and 4 are moved up and down together with the container 6 by extending and contracting the piston rod of the first lifting and lowering means 5.
The first application rollers 4 and 4 are in a state in which the first application rollers 4 and 4 can apply the second adhesive to the lower surface of the conveyed plate-like member 60 at the position where the first application rollers 4 and 4 are raised. In FIG. 3, the lower surface of the plate-like member 60, in other words, slightly protrudes above the conveying line L that conveys the plate-like member 60.

  And in the 1st coating device 1 of such a structure, after raising the 1st coating rollers 4 and 4 by the 1st raising / lowering means 5, and pressing the outer periphery coating part 4b on the lower surface 60b of the plate-shaped member 60, it is. The primer can be applied to the lower surface 60b of the plate-like member 60 while the outer periphery application portion 4b rotates with the rotation of the first application rollers 4 and 4. On the other hand, the first application rollers 4 and 4 are lowered and separated from the lower surface 60 b of the plate-like member 60, so that the primer is not applied to the lower surface 60 b of the plate-like member 60. That is, in the first coating device 1, it is possible to select whether or not to apply the primer to the lower surface 60 b of the plate-like member 60.

The second coating device 2 can apply the first adhesive to the upper surface (the other surface) 60a of the plate-like member 60, and rotates the primer to the upper surface (the other surface) 60a of the plate-like member 60. A second application roller 8 that can be applied while the second application roller 8 is moved up and down.
On the right side of the second application roller 8, a doctor roller 10 is arranged with its rotation axis parallel to the rotation axis of the second application roller 8, and these second application roller 8 and doctor roller 10 are attached to the support portion 11. It is attached. The second application roller 8 and the doctor roller 10 are in contact with each other or close to each other, and when the second application roller 8 rotates, the doctor roller 10 also rotates in synchronization.

A first adhesive S is supplied on a portion where the second application roller 8 and the doctor roller 10 are in contact with or close to each other. The first adhesive S is appropriately supplied by an operator, or an adhesive supply device (not shown) is provided on the second coating device 2 and is automatically supplied from the adhesive supply device. Good. In addition, the doctor roller 10 can adjust the position of the rotation shaft thereof, and thereby the interval between the outer peripheral surfaces of the doctor roller 10 and the second application roller 8 can be adjusted. And the application quantity of the adhesive agent S can be adjusted by adjusting this space | interval. Further, the first adhesive is spread evenly on the surface of the second application roller 8 by the doctor roller 10.
Further, the rotation speed of the second application roller 8 is controlled at a second speed, and when the sensor provided in the second application device 2 senses the front end of the plate-like member 60, the speed is increased. Driven. This is for suppressing the drying of the first adhesive S supplied between the second application roller 8 and the doctor roller 10 and extending the usable time.

  The second lifting / lowering means 9 includes a drive motor 12 attached to the upper part of the second coating device 2, a worm gear attached to the rotation shaft of the drive motor 12, and the support portion 11. It is comprised by the gear which meshes with a gearwheel. And in the 2nd raising / lowering means 9, the support part 9 raises / lowers via a worm gear and a gearwheel by rotating the rotating shaft of the drive motor 12, and is attached to the support part 11 in connection with this. The application roller 8 and the doctor roller 10 are moved up and down integrally.

  Further, the second coating device 2 includes a transport roller 13 that is disposed to face the second coating roller 8 with the plate-shaped member 60 interposed therebetween. The transport roller 13 carries out the plate member 60 by rotating with the second application roller 8 sandwiching the plate member 60, and is rotated by the drive motor 14.

The conveyance roller 13, the application roller 8, and the doctor roller 10 are rotated synchronously by the one drive motor 14.
This mechanism will be described with reference to FIG. In FIG. 4, reference numeral 15 denotes a drive gear attached to the rotary shaft 14 a of the drive motor 14. A gear 16 is disposed above the drive gear 15, and the gear 16 is attached to the rotation shaft 13 a of the transport roller 13. An idling gear 17 is disposed between the drive gear 15 and the gear 16, and the idling gear 17 is rotatably attached to the frame of the second coating device 2 via a shaft 17 a.
A gear 18 is disposed above the gear 16, and this gear 18 is attached to the rotation shaft 8 a of the second application roller 8. Therefore, the gear 18 moves up and down together with the second application roller 8. An idling gear 19 is disposed above the gear 18, and the idling gear 19 is rotatably attached to the frame of the second coating device via a shaft 19a.

An endless chain 20 is wound around the drive gear 15, idling gear 17, gear 16, gear 18, and idling gear 19.
Although not shown, gears are respectively attached to the other end portion of the rotation shaft of the second application roller 8 and the other end portion of the rotation shaft of the doctor roller 10, and these gears mesh with each other.
Therefore, as shown in FIG. 4, when the drive gear 15 is rotated clockwise by the drive motor 14, the gear 16 and the gear 18 are synchronously rotated counterclockwise and clockwise, respectively. Due to the rotation, the transport roller 13 and the second application roller 8 are rotated counterclockwise and clockwise, respectively. Further, when the second application roller 8 rotates clockwise as described above, the doctor roller 10 rotates counterclockwise in synchronization therewith.
That is, as shown in FIG. 1, the transport roller 13, the second application roller 8, and the doctor roller 10 are rotated in synchronization by one drive motor 14.
Further, since the distance between the gear 16 and the idling gear 19 is constant, the gear 18 can be raised and lowered, whereby the second application roller 8 and the doctor roller 10 can also be raised and lowered.

  In the second coating device 2 having such a configuration, the second coating roller 8 and the doctor roller 10 are integrally lowered by the second lifting and lowering means 9 to be placed on the upper surface 60 a of the plate-like member 60. , The adhesive can be applied to the upper surface 60a of the plate member 60 while the second application roller 8 rotates. On the other hand, the second application roller 8 and the doctor roller 10 are integrally raised and separated from the upper surface 60a of the plate-like member 60, so that the adhesive is not applied to the upper surface 60a of the plate-like member 60. . That is, in the second coating device 2, it is possible to select whether or not to apply the adhesive to the upper surface 60a of the plate-like member 60.

The transport means 3 continuously carries in and out the plate-like member 60 to and from the first coating device 1 and the second coating device 2, and includes a first feeding device 21 and a second feeding device 22. ing.
The first feeding device 21 is provided on the upstream side (right side in FIG. 1) of the first coating device 1 and feeds the plate-like member 60 to the first coating device 21, and sandwiches the plate-like member 60. A pair of upper and lower drive rollers 23, 24 arranged at positions are provided.
The upper drive roller 23 is rotated clockwise through a chain 26 by the upper drive motor 25. The upper drive roller 23 is pressed downward by the repulsive force of the compression spring 27.
The lower drive roller 24 is rotated counterclockwise via a chain 29 by a lower drive motor 28.

  In the first feeding device 21 configured as described above, when the plate-like member 60 thrown in from the right is inserted between the upper and lower drive rollers 23 and 24, the plate-like member is formed by the repulsive force of the compression spring 27. The member 60 is caught so as to be sandwiched, and is further fed onto the first application rollers 4 and 4 of the first application device 1 by the rotation of the drive rollers 23 and 24. Further, a guide member 30 is provided above the first application rollers 4 and 4, and a plate-like member 60 is fed between the guide member 30 and the first application rollers 4 and 4, and the guide member The plate member 60 is guided by 30 so as not to deviate upward.

  Further, as shown in FIG. 3, the first feeding device 21 of the conveying means 3 is pressed against the first coating rollers 4 and 4 by pressing the tip of the plate-like member 60 fed to the first coating device 1. Means 70 are provided. The pressing means 70 includes the pair of upper and lower drive rollers 23 and 24 and support rollers 40 and 40 that can support the plate member 60 from below and can be conveyed horizontally. In the pressing means 70 having such a configuration, as shown in FIG. 3A, the front end portion of the plate-like member 60 conveyed leftward is elastically upward by the first application rollers 4 and 4. Although slightly curved, the plate-like member 60 is supported by the support rollers 40, 40 on the right side of the drive rollers 23, 24, so that the front end portion of the plate-like member 60 is elastically restored by the first application roller 4. , 4 are pressed against the outer peripheral application parts 4b, 4b.

As shown in FIGS. 1 and 2, the second feeding device 22 is provided between the first coating device 1 and the second coating device 2, and draws the plate-like member 60 from the first coating device 1. It feeds into the 2nd coating device 2, and is provided with a pair of upper and lower feed rollers 31 and 32 that can rotate with the plate-like member 60 sandwiched from above and below.
The upper feeding roller 31 is a free roller and is rotatably attached to the support portion 33. A weight 34 is attached to the support portion 33. Moreover, the support part 33 is supported by the guide rods 35 and 35 attached to the frame of the second feeding device 22 so as to be movable up and down. An air cylinder 36 is installed on the upper part of the frame of the second feeding device 22 with its piston rod facing downward, and the tip of the piston rod is connected to the support portion 33. Therefore, the upper feeding roller 31 can be lifted and lowered together with the support portion 33 by expanding and contracting the piston rod of the air cylinder 36, and can be separated from the plate-like member 60 by being lifted and lowered. It contacts the upper surface 60 a of the plate-like member 60.
The lower feeding roller 32 is rotated counterclockwise by a drive motor 37 via a chain 38.

And in the 2nd feeding apparatus 22 of the said structure, if the plate-shaped member 60 sent from the 1st coating apparatus 1 will detect the front end (front-end | tip) with the sensor 39 provided in the 2nd feeding apparatus 22. FIG. The upper feed roller 31 is lowered together with the support portion 33 by the air cylinder 36 and comes into contact with the upper surface 60a of the plate-like member 60. The weight of the weight 34 causes the plate-like member 60 to move to the upper and lower feed rollers 31, 32. To be caught by. When the lower feeding roller 32 rotates, the plate-like member 60 is drawn from the first coating device 1 by the upper and lower feeding rollers 31 and 32 and further fed to the second coating device 2. Further, when the sensor detects the rear end of the plate-like member 60, the upper feeding roller 31 is raised together with the support portion 33 by the air cylinder 36 so as to be separated from the plate-like member 60.
Further, the feeding roller 31 on the upper side of the second feeding device 22 is detected by the sensor 39 when the tip of the plate-like member 60 reaches between the pair of feeding rollers 31 and 32, and the feeding is performed. The insertion roller 31 descends and pushes down the front end portion of the plate-like member 60, thereby pressing the lower surface of the plate-like member 60 against the outer peripheral application portions 4 b and 4 b of the first application rollers 4 and 4.

A plurality of support rollers 40 that support the plate-like member 60 from below and can be conveyed horizontally are provided between the first coating device 1 and the second coating device 2 and downstream of the second coating device 2 at predetermined intervals. Is provided. Similarly, a support roller 40 is provided on the upstream side of the first coating device 1. These support rollers 40 are all provided at the same height. Further, the support roller 40 is in contact with the lower surface 60b of the plate-like member 60. The conveying roller 13, the feed roller 32, the drive roller 24, the first application roller 4 and the lower surface of the plate-like member 60 are in contact with each other. The contact portion and the height direction position are equal.
Therefore, when the plate-like member 60 is transported from the first coating device 1 to the second coating device 2 and further transported from the second coating device 2 to the next downstream process, the plurality of support rollers 40, the transport rollers 13, Since the plate-like member 60 is supported and conveyed from below by the feed roller 32, the drive roller 24, and the first application roller 4, the plate-like member 60 can be conveyed more smoothly.

Next, the operation of the adhesive applicator configured as described above will be described.
In the following, when a plurality of plate members 60 are stacked and bonded together to produce a laminated material, a case where an adhesive or a primer is selectively applied to each plate member 60 will be described. .

First, when the leading plate member 60 is inserted from the right and inserted between the upper and lower drive rollers 23 and 24 of the first feeding device 21, the plate member 60 is sandwiched by the repulsive force of the compression spring 27. Then, the toner is fed onto the first application rollers 4 and 4 of the first application device 1 by the rotation of the drive rollers 23 and 24.
On the other hand, when the leading plate-like member 60 is inserted, the first application rollers 4 and 4 are raised by the first elevating means 5 to a paintable position. That is, the first application rollers 4 and 4 rise and protrude slightly above the lower surface of the plate-like member 60, in other words, the conveyance line L that conveys the plate-like member 60.
When the leading plate member 60 is fed into the first coating device 1, the tip of the plate member 60 is elastically moved upward by the first coating rollers 4 and 4 as shown in FIG. Although slightly curved, the plate-like member 60 is supported by the support rollers 40, 40 on the right side of the drive rollers 23, 24, so that the front end portion of the plate-like member 60 is elastically restored by the first application roller 4. , 4 are pressed against the outer peripheral application portions 4b, 4b. In this state, the plate-like member 60 is further fed to the left by the first feeding device 21, so that the primer is applied to the lower surface 60b of the front end of the plate-like member 60 while the first application rollers 4 and 4 are rotated. To do. That is, since the lower surface 60b of the front end portion of the plate-like member 60 is pressed against the outer peripheral application portions 4b and 4b of the first application rollers 4 and 4, the first application rollers 4 and 4 are pushed by the front end portion lower surface 60b of the plate-like member 60. The outer peripheral application portions 4b and 4b are compressed and the second adhesive impregnated therein is squeezed out and applied to the lower surface 60b of the tip portion of the plate member 60.

  As shown in FIG. 3B, the plate-like member 60 sent from the first coating device 1 is detected by the air cylinder 36 when the sensor 39 of the second feeding device 22 senses the front end (tip). 2 The upper feeding roller 31 of the feeding device 22 descends and comes into contact with the upper surface 60 a of the plate-like member 60, and the plate-like member 60 is sandwiched between the upper and lower feeding rollers 31 and 32 by the weight of the weight 34. The plate-like member 60 is pulled in from the first coating device 1 by the upper and lower feeding rollers 31 and 32 by the rotation of the lower feeding roller 32, and the second coating device 2. Sent to. When the sensor detects the rear end of the plate member 60, the upper feeding roller 31 is raised by the air cylinder 36 and separated from the plate member 60.

  In addition, the feeding roller 31 on the upper side of the second feeding device 22 is detected by the sensor 39 when the tip of the plate-like member 60 reaches between the pair of feeding rollers 31 and 32, and the feeding is performed. The insertion roller 31 descends and pushes down the front end portion of the plate-like member 60, thereby pressing the lower surface of the plate-like member 60 against the outer peripheral application portions 4 b and 4 b of the first application rollers 4 and 4. In this state, the plate-like member 60 is further fed leftward by the second feeding device 22, so that the primer is applied to the lower surface 60 b of the plate-like member 60 while the first application rollers 4 and 4 rotate. That is, since the lower surface 60b of the plate-like member 60 is pressed against the outer periphery application portions 4b, 4b of the first application rollers 4, 4, the outer periphery application portion 4b of the first application rollers 4, 4 by the lower surface 60b of the plate-like member 60. , 4b is compressed and the second adhesive impregnated therein is squeezed out and applied to the lower surface 60b of the plate member 60.

  Since it is not necessary to apply an adhesive to the upper surface 60 a of the top plate member 60, the second application device 2 is in a position where the second application roller 8 and the doctor roller 10 are raised, Since the adhesive is not applied to the upper surface 60a of the plate-like member 60, the plate-like member 60 is sent to the downstream side (left side) by the second feeding device 22 and the conveying roller 13 as it is away from the upper surface 60a. Then, transport to the next process.

The primer (second adhesive) and the first adhesive are applied to the upper surface 60a and the lower surface 60b, respectively, on the intermediate plate member 60 from the second to the last one, as follows.
That is, when each of the plate members 60 from the second to the last one is sequentially inserted from the right and fed into the first coating device 1 by the first feeding device 21, the leading plate member Similarly to the case of 60, the primer is applied to the lower surface 60 b of the plate-like member 60 by the first application rollers 4 and 4.
The plate-like member 60 sent from the first coating device 1 is sent to the second coating device 2 by the second feeding device 22 in the same manner as the first plate-like member 60.

When the plate-like member 60 is fed into the second coating device 2, an adhesive is applied to the upper surface 60a of the plate-like member 60 as follows.
That is, when a sensor provided in the second coating device 2 senses that the leading plate-like member 60 has passed through the second coating device 2, the second coating roller 8 and the doctor roller 10 of the second coating device 2 Is lowered integrally by the second lifting means 9. In this state, the plate-like member 60 is fed between the second application roller 8 and the conveyance roller 13, and the second application roller 8 and the conveyance roller 10 rotate in synchronization, whereby the second application roller 8 is While rotating, an adhesive is applied to the upper surface 60a of the plate-like member 60, and further, the plate-like member 60 coated with the adhesive is sent out by the rotation of the conveying roller 10 and the second applying roller 8 and conveyed to the next step. On the other hand, when the sensor detects the front end of the plate-like member 60, the rotation speed of the transport roller 13 is increased, and accordingly, the rotation speed of the second application roller 8 is also increased. At this time, the upper feeding roller 31 is raised by the air cylinder 36 of the second feeding device 22 and separated from the plate member 60.

Adhesive is applied only to the upper surface 60 a of the last plate-like member 60. That is, when the last plate-like member 60 is thrown in from the right and sent to the first coating device 1 by the first feeding device 21, or before that, the first coating rollers 4 and 4 are moved up and down first. It descends by means 5 and is spaced downward from the application position. Accordingly, the primer is not applied to the lower surface 60b of the last plate-like member 60. Even if the first coating rows 4 and 4 are lowered, the plate-like member 60 is supported from below by the support rollers 40 and 40 on both sides thereof, so that it is smoothly conveyed. When the last plate-like member 60 passes through the first application device 1, the first application rollers 4 and 4 are raised to return to a state where the primer can be applied.
Then, the last plate-like member 60 sent from the first coating device 1 is sent to the second coating device 2 by the second feeding device 22 in the same manner as described above. When the last plate-like member 60 is sent to the second coating device 2, an adhesive is applied to the upper surface 60a of the plate-like member 60 in the same manner as the intermediate plate-like member 60, and the adhesive is applied. The last plate-like member 60 that has been applied is sent out by the rotation of the conveying roller 10 and the second applying roller 8 and conveyed to the next step.
Note that the number of the plate-like members 60 to be input is previously input to the control device. Therefore, by this control device, the first plate-like member 60 passes through the second coating device 2 and before the plate-like member 60 immediately before the last passes through the second coating device 2, the first plate-like member 60 passes through the second coating device 2. Until the first coating rollers 4, 4 of the first coating device 1 and the second coating roller 8 of the second coating device 2 can be coated, and the leading plate-like member 60 passes through the second coating device 2, The second application roller 8 is in an unapplicable position, and the first application rollers 4 and 4 are in an unapplicable position until the last plate-like member 60 passes through the first application device 1. The first coating device 1 and the second coating device 2 can be controlled.

  As described above, according to the present embodiment, the first application rollers 4 and 4 of the first application device 1 and the second application roller 8 of the second application device 2 are respectively connected to the first elevating means 5 and the second elevating device. By selectively moving up and down by means 9, the first application roller 4, 4 and the second application roller 8 are selectively brought into contact with or separated from the upper and lower surfaces 60 a, 60 b of the plate-like member 60, thereby forming a plate-like shape. An adhesive can be selectively applied to the upper and lower surfaces 60 a and 60 b of the member 60. Therefore, the laminated material can be efficiently manufactured by stacking the plate-like members 60 to which the adhesive or the primer is applied by the adhesive application device of the present embodiment.

Further, the plate-like member 60 is sent to the first coating device 1 by the first feeding device 21, and the plate-like member 60 is drawn from the first coating device 1 by the second feeding device 22. Therefore, selective adhesive application to the upper and lower surfaces 60a, 60b of the plate-like member 60 can be performed successively one after another.
Further, since the transport roller 13 of the second coating device 2 rotates with the plate-like member 60 sandwiched by the second coating roller 8, the plate-like member 60 is carried out, that is, the second coating device 2 is a plate. Since it has the drive force which carries out the shaped member 60, the plate-like member 60 can be carried out easily and reliably from the 2nd coating device 2 to the downstream downstream process.

In addition, since the upper feeding roller 31 of the second feeding device 22 can be separated from the plate-like member 60, by separating the upper feeding roller 31 from the plate-like member 60, the plate-like member 60. Can be transported while being supported from below by the lower feeding roller 32. Accordingly, when the transport roller 13 of the second coating device 2 rotates with the plate-like member 60 sandwiched between the second coating roller 8, when the plate-like member 60 is carried out, the upper side of the second feeding device 22. By separating the feeding roller 31 from the plate-like member 60, the plate-like member 60 can be smoothly passed through the second feeding device 22 and fed to the second coating device 2.
Further, the plate-like member 60 is transported from the first feeding device 21 to the first coating device 1, the second feeding device 22, and the second coating device 2, and further transported from the second coating device 2 to the next downstream process. At this time, since the plate-like member 60 is supported and conveyed from below by the plurality of support rollers 40, the plate-like member 60 can be conveyed more smoothly.

Further, the adhesive applied to the upper surface 60a of the plate-like member 60 is a first adhesive obtained by kneading an adhesive main agent and a crosslinking agent in advance, and has a high viscosity behind the second adhesive. The first adhesive can be easily and reliably applied to the upper surface 60a of the plate-like member 60 by the second application roller 8.
Further, the uneven application of the first adhesive particularly affects the quality of the product (glued material), but since the first adhesive is applied to the upper surface 60a of the plate-like member 60, the visual confirmation of the application state of the first adhesive is performed. It becomes easy to do. Furthermore, since the 1st adhesive agent with a high viscosity is apply | coated to the upper surface 60a of the plate-shaped member 60, when conveying this plate-shaped member 60 with conveyance means, such as a conveyor and a conveyance roller, a 1st adhesive agent is a conveyance means ( Can be prevented from adhering to the supporting rollers 40, 40, the feeding rollers 31, 32, the conveying roller 13, and the like.
In addition, since the first adhesive is obtained by kneading the adhesive main agent and the crosslinking agent in advance, durability (water resistance, heat resistance, etc.) is improved.
The second adhesive may be applied in a small amount (for example, about 1/9 of the first adhesive) as compared with the first adhesive, but the viscosity of the second adhesive is lower than that of the first adhesive. The second adhesive can be easily and uniformly applied to the lower surface 60b.
Furthermore, since the first application rollers 4 and 4 are provided in the container 6, the extra low-viscosity second adhesive dripping from the first application rollers 4 and 4 can be easily collected in the container 6.

Further, the first application roller 4 includes an outer periphery application 4b portion, and the outer periphery application portion 4b can be impregnated with the second adhesive, and the second adhesive impregnated is squeezed out by being compressed. Therefore, the second adhesive having a low viscosity can be easily and reliably applied to the lower surface 60b of the plate-like member 60.
Further, the upper feeding roller 31 of the second feeding device 22 descends when the leading end of the plate-like member 60 reaches between the pair of feeding rollers 31 and 32, and the leading end of the plate-like member 60. Since the lower surface 60b of the plate-like member 60 is pressed against the first application roller 4 by pushing down the portion, the outer periphery application portion 4b of the first application roller 4 is reliably compressed by the lower surface 60b of the plate-like member 60, The second adhesive impregnated inside can be squeezed out and reliably applied to the lower surface 60 b of the plate-like member 60.
Further, before the front end portion of the plate-like member reaches between the pair of feeding rollers 31 and 32, the front end portion of the plate-like member 60 fed to the first coating device 1 is pressed by the pressing means 70 to the first application roller. 4, the second adhesive can be reliably applied to the lower surface 60 b of the tip of the plate-like member 60.

  In this embodiment, the case where the adhesive is selectively applied to the upper and lower surfaces of the plate-like member (lamina) constituting the laminated material has been described as an example. However, the present invention is not limited to this, and the plate Any adhesive can be applied as long as the adhesive is selectively applied to the upper and lower surfaces of the member.

An example of the adhesive agent coating apparatus of this invention is shown, and it is the schematic side view. It is a front view of a 2nd sending device same as the above. It is a schematic block diagram which shows the state in which the plate-shaped member is conveyed similarly. It is a side view which shows the drive mechanism of a 2nd coating device equally. It is a disassembled perspective view of the laminated material formed by laminating a plurality of plate-like members.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st coating device 2 2nd coating device 3 Conveying means 4 1st coating roller 4a Roller body 4b Outer periphery coating | coated part 5 1st raising / lowering means 8 2nd coating roller 9 2nd raising / lowering means 13 Conveying roller 21 1st feeding apparatus 22 Second feeding device 31, 32 Feeding roller 40 Support roller 60 Plate member 60a Upper surface 60b Lower surface 70 Pressing means

Claims (9)

An adhesive application device that selectively applies an adhesive to each of upper and lower surfaces facing each other of a plate-like member,
A first application device capable of applying an adhesive to any one of the upper and lower surfaces of the plate-like member; a second application device capable of applying an adhesive to the other surface of the plate-like member; A transport means for continuously carrying the plate-like member into and out of the first and second coating devices;
The first application device includes a first application roller that can apply the adhesive while rotating the adhesive on one surface of the plate-like member, and first elevating means that elevates and lowers the first application roller.
The second application device includes a second application roller capable of applying the adhesive while rotating the adhesive on the other surface of the plate-like member, and second elevating means for elevating and lowering the second application roller. Adhesive application device. In the adhesive application device according to claim 1,
The transport means is provided on the upstream side of the first coating device, and a first feeding device that feeds a plate-like member to the first coating device;
A second feeding device is provided between the first coating device and the second coating device, and draws a plate-like member from the first coating device and feeds it to the second coating device. Adhesive application device. The adhesive application device according to claim 1 or 2,
The second coating device includes a transport roller disposed opposite to the second coating roller with a plate-shaped member interposed therebetween,
The transporting roller is configured to carry out the plate-like member by rotating with the second coating roller sandwiching the plate-like member. In the adhesive application device according to claim 3,
The second feeding device includes a pair of upper and lower feeding rollers that can rotate with the plate-like member sandwiched from above and below,
The adhesive applicator characterized in that the upper feeding roller can be separated from the plate-like member. In the adhesive applicator according to any one of claims 1 to 4,
A plurality of support rollers that support the plate-like member from below and can be conveyed horizontally are provided between the first coating device and the second coating device and downstream of the second coating device at predetermined intervals. An adhesive application device. In the adhesive application device according to any one of claims 1 to 5,
The adhesive applied to the upper surface of the plate-shaped member is a first adhesive obtained by kneading an adhesive main agent and a crosslinking agent in advance, and the adhesive applied to the lower surface of the plate-shaped member is the first adhesive. An adhesive application device characterized in that it is a second adhesive that promotes curing and crosslinking reaction of one adhesive and has a lower viscosity than the first adhesive. The adhesive application device according to claim 6,
The first application device can apply a second adhesive to the lower surface of the plate-like member, the second application device can apply the first application adhesive to the upper surface of the plate-like member,
The first application roller of the first application device includes a roller body and an outer periphery application portion wound around the outer periphery of the roller body.
This outer periphery application part can impregnate a 2nd adhesive agent, and the 2nd adhesive agent impregnated by being compressed is squeezed out, The adhesive agent coating apparatus characterized by the above-mentioned. The adhesive application device according to claim 7,
The first application roller protrudes slightly above the lower surface of the plate-shaped member in a state where the second adhesive can be applied to the lower surface of the conveyed plate-shaped member,
The feeding roller on the upper side of the second feeding device descends and pushes down the leading end of the plate-like member when the leading end of the plate-like member reaches between the pair of feeding rollers. An adhesive applicator characterized in that the lower surface of the member is pressed against the first applicator roller. In the adhesive applicator according to claim 8,
The adhesive applicator characterized in that the first feeding device of the conveying means is provided with a pressing means for pressing the tip of the plate-like member fed into the first applicator against the first applicator roller. .

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