JP3914298B2 - Finger joint material adhesive dryer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an adhesive drying apparatus in which finger joint materials are joined.
[0002]
[Background Art and Problems to be Solved by the Invention]
As shown in FIG. 5, the finger joint material known as a wood longitudinal material is formed by applying an adhesive to the serrated uneven surface formed at the mouth of the wood 1 to be joined to each other, that is, the finger 2. It is made by pressing wood vertically. In addition, as a modification of the finger joint material, there is also a sloppy finger joint material in which the end of the wood is inclined. These manufactured finger joint materials are stacked and shipped as they are, or temporarily stored in a warehouse or the like.
[0003]
When the finger joint material is clamped, the applied adhesive protrudes from the end of the joint surface. Therefore, when these are stacked as they are, the finger joint materials adhere to each other with the protruding adhesive, which greatly increases the separation. There is a problem that requires time and effort. There is also a problem that the surface of the finger joint material is wrinkled during separation.
[0004]
In order to prevent the above adhesion, temporarily placing the finger joint material and air-drying it involves a problem of requiring a lot of space and time.
[0005]
Then, the subject of this invention is providing the adhesive dryer of the finger joint material which can dry the adhesive protruded from the joining surface efficiently in a short time.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, an adhesive drying apparatus for finger joint materials according to the present invention applies adhesive to fingers formed at the mouths of wood to be joined to each other, and presses these woods in the vertical direction. The finger joint material manufactured as described above is composed of a conveyor that places the length direction parallel to the width direction of the conveyor and conveys it, and heaters that are arranged above and below the conveyor conveyance floor. A plurality of chains arranged in parallel are used, and claws are attached to the chain at a predetermined interval. These chains are intermittently operated with a predetermined transport stroke, and the transport floor of each chain is opened up and down. , a heater disposed above and below the conveyor beds of the conveyor is divided in the width direction of the conveyor at intervals of chain, it is arranged on the lower side between the conveying bed of the chain That we established in proximity to the transport floor heater is We chose liftably installed configuration in which the heater is disposed on the upper side between the conveying bed of the chain.
[0007]
That is, the pressed finger joint material is placed on the conveyor supply end as it is, intermittently sent to the drying zone where the heaters are arranged up and down, and the heater disposed on the upper side of the conveyor transport floor is lowered. Then, the adhesive protruding from the joint surface can be dried in a short time by bringing the joint surface close to the joint surface of the finger joint material and heating the joint surface with heaters close to both the upper and lower sides. The finger joint material that has been dried is sequentially sent to the discharge end side of the conveyor.
[0008]
The heater on the upper side of the transfer floor can be moved up and down to adjust the height position of the finger joint materials having different thicknesses, and when the finger joint material is transferred, the heater is retracted so that the finger joint material becomes the heater. This is to prevent contact.
[0009]
By dividing the heaters arranged above and below the conveyor transport floor in the width direction of the conveyor, the heaters can be selectively used according to the length of the finger joint material and the position of the joining surface, thereby eliminating waste of heating. Can do.
[0010]
Further, the conveyor floor of the conveyor is composed of a plurality of chains or belts that are continuous in the transport direction, and the finger joint material is inclined in the transport direction on the transport floor by attaching claws to these chains or belts at a predetermined interval. Can be prevented.
[0011]
Furthermore, by providing a means for feeding the finger joint material onto the transport floor on the supply end side of the conveyor, the finger joint material can be automatically fed onto the transport floor of the conveyor. Further, by this feeding means, a plurality of finger joint materials can be fed on the conveyor floor of the conveyor with a close interval therebetween, and the drying apparatus can be used efficiently by increasing the coverage of the conveyor floor.
[0012]
As the feeding means for the finger joint material, another conveyor having an overlap allowance between the conveyor floor and the conveyor floor of the conveyor can be adopted on the entrance side of the conveyor.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 is a front view of an adhesive drying apparatus for finger joint materials, FIG. 2 is a side view thereof, and FIG. 3 is a plan view thereof.
[0014]
The conveyor that conveys the finger joint material 3 has four racks 4 arranged at equal intervals in the width direction, and a motor 5 that drives the conveyor is attached to one of the racks 4. The driving force of the motor 5 is transmitted by a chain 7 and a sprocket 8 to a rotating shaft 6 connected to and attached to the four mounts 4. Four other sprockets 9 are also attached to the rotary shaft 6 at equal intervals, and each of the sprockets 9 is installed at a conveyor supply end and a discharge end on the gantry 4 respectively. Are connected by a chain 12. The four chains 12 form the conveyor floor of the conveyor. Claws 13 are attached to each chain 12 at regular intervals.
[0015]
In addition, a motor 14 for driving an auxiliary conveyor for feeding the finger joint material 3 onto the conveyor floor is attached to one of the mounts 4. The driving force of the motor 14 is transmitted by a chain 16 and a sprocket 17 to a rotary shaft 15 attached to the conveyor supply end side on the four mounts 4. Five sprockets 18 are attached to the rotating shaft 15, and each of the sprockets 18 and another five sprockets 20 attached via the arm 19 on the conveyor supply end side on each of the mounts 4 are respectively chain 21. It is connected. These five chains 21 form the conveyance floor of the auxiliary conveyor.
[0016]
The four sprockets 10 at the conveyor supply end are also attached at positions different from the five sprockets 18 of the rotating shaft 15. As shown in FIG. 4, each sprocket 10 is attached so as to be able to rotate independently of the rotating shaft 15 via a bearing 22. Therefore, the chain 12 that is the conveyor floor of the conveyor and the chain 21 that is the conveyor floor of the auxiliary conveyor are operated independently, and a part of each conveyor floor is shared on the supply end side of the conveyor.
[0017]
A pair of vertical frames 23 are set up at both width ends of the conveyor, and two horizontal frames 24 and 25 are passed over the vertical frame 23. A cylinder 26 is installed on each vertical frame 23, and the upper horizontal frame 24 is attached to each cylinder 26. The horizontal frame 24 moves up and down while being guided by a liner 27 attached to the window of the vertical frame 23. The lower horizontal frame 25 is fixed to the vertical frame 23 and supported by the four mounts 4.
[0018]
Electric heaters 28 and 29 are attached to the upper and lower horizontal frames 24 and 25, which are opened toward the conveyor floor of the conveyor and housed in a plurality of cases divided in the width direction of the conveyor. In each case, a power plug 30 for the electric heaters 28 and 29 is attached.
[0019]
In this embodiment, a chain is used for the conveyor floor and driving force transmission of each conveyor, but a belt can also be used. A belt made of heat-resistant silicone rubber or the like can be used for the conveyor floor of the conveyor that receives heat from the electric heaters 28 and 29.
[0020]
The operation procedure of the finger joint material adhesive drying apparatus described above is as follows.
[0021]
This adhesive drying apparatus is installed adjacent to the discharge end side table 31 of the finger joint material manufacturing apparatus. The finger joint material 3 on the discharge end side table 31 of the manufacturing apparatus is fed by the auxiliary conveyor operated by the motor 14 one by one onto the four chains 12 that are the conveyor floor of the conveyor. This operation is continued until the fed finger joint material 3 is pushed to the front of the claw 13 on the conveyance floor.
[0022]
When this operation is completed, the motor 5 is driven, and the fed finger joint material 3 is placed on the chain 12 and advanced by a fixed stroke. At this time, the next nail | claw 13 attached to the chain 12 is set to the rear surface of the finger joint material 3 sent last. In this embodiment, three finger joint members 3 are fed between the claws 13 to cover the conveyance floor surface.
[0023]
When the three finger joint members 3 fed between the claws 13 reach between the pair of vertical frames 23, the upper heater 28 is lowered by the cylinder 26, and the finger joint members 3 are joined. The surface is heated. The adhesive protruding from the joint surface is completely dried in 15 to 30 seconds.
[0024]
When the drying is finished, the upper heater 28 rises, the transport floor is advanced by a fixed stroke, and the next three finger joint members 3 reach the positions of the heaters 28 and 29.
[0025]
By repeating the above operation, the protruding adhesive of the finger joint material 3 is continuously dried in a short time, and the dried finger joint material 3 is sequentially taken out from the discharge end side of the transport floor and stacked. .
[0026]
【The invention's effect】
As described above, in the finger joint material adhesive drying apparatus of the present invention, the pressed finger joint material is fed to the supply end of the conveyor as it is, and the conveyor is intermittently operated and the heaters are arranged up and down. Since it reached the drying zone, the heater arranged on the upper side of the conveyor transport floor was lowered, brought close to the joint surface of the finger joint material, and this joint surface was heated with heaters close to the upper and lower sides. The adhesive protruding from the surface can be dried in a short time, and the manufactured finger joint materials can be stacked in a narrow space.
[0027]
Moreover, by dividing the heaters arranged on the upper and lower sides of the conveyor transport floor in the width direction of the conveyor, the heaters can be selectively used according to the dimensions of the finger joint material, and waste of heating can be eliminated.
[0028]
Furthermore, the conveyor floor of the conveyor is composed of a plurality of chains that are continuous in the conveying direction, stoppers are attached to these chains at predetermined intervals, and a plurality of finger joint materials are formed by feeding means provided on the entrance side of the conveyor. By feeding onto the transport floor until it hits the stopper, the coverage of the transport floor can be increased and the drying apparatus can be used efficiently.
[Brief description of the drawings]
FIG. 1 is a front view of an embodiment of a finger joint material adhesive drying apparatus. FIG. 2 is a side view of FIG. 1. FIG. 3 is a plan view of FIG. [Figure 5] Perspective view of finger joint material [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Wood 2 Finger 3 Finger joint material 4 Mount 5 Motor 6 Rotating shaft 7 Chain 8, 9, 10, 11 Sprocket 12 Chain 13 Claw 14 Motor 15 Rotating shaft 16 Chain 17, 18 Sprocket 19 Arm 20 Sprocket 21 Chain 22 Bearing 23 Vertical Frame 24, 25 Horizontal frame 26 Cylinder 27 Liner 28, 29 Heater 30 Plug 31 Table

Claims (1)

A finger joint material (3) manufactured by applying an adhesive to the fingers (2) formed at the mouth of the wood (1) to be joined to each other and pressing the wood (1) in the vertical direction , The conveyor is composed of a conveyor that is placed in parallel with the width direction of the conveyor and conveyed, and heaters that are arranged above and below the conveyor conveyance floor, and the conveyor has a plurality of chains (12) arranged in parallel. Used, claw (13) is attached to this chain at a predetermined interval, these chains (12) are intermittently operated with a predetermined transport stroke, and the transport floor of each chain (12) is opened up and down The heaters (28) and (29) arranged above and below the conveyor floor of the conveyor are divided in the width direction of the conveyor at intervals of the chain (12), and between the conveyor floors of each chain (12) under A heater (29) arranged to installed close to the conveyor floor with, each chain (12) adhesive liftably installed finger joint material heater (28) disposed above the interprocess transport floor Drying equipment.

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