JPS6051861B2 - Gluing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a woodworking gluing device used for manufacturing plywood and the like, and more particularly to a gluing device that can be used for both double-sided and single-sided coating.

Conventionally, for example, to manufacture plywood by layering board materials,
A method is used in which an adhesive is applied to each plate material and then these are pressed together using a lamination press or the like.

In such an adhesive application process, it goes without saying that the plates located at the top and bottom layers are coated on only one side, while the members located between them are coated on both sides. For this reason, two gluing devices were required, one for single-sided coating and one for double-sided coating. Therefore, in addition to the space issue, the operating time of each unit is different due to the number of sheets processed, and even if one unit is operating, the other unit may be idle, resulting in a lot of time loss. Furthermore, since the concentration of the adhesive varies over time between groups, this has also been a cause of variations in product quality. In view of the above, an object of the present invention is to provide a gluing device that can perform both one-sided and double-sided application of an adhesive.

Next, the present invention will be explained in detail based on illustrated embodiments.

As shown in FIG. 1, the gluing device consists of a top gluing mechanism 3 supported by worm/worm gear mechanisms 2, 2 disposed on the upper left and right sides of the machine frame 1, and an intermediate frame 4 of the machine frame 1. A lower surface gluing mechanism 6 is supported downward by lifting mechanisms 5, 5 fixedly installed on the lower left and right sides, and a backup roll 7 made of Com is supported by bearings on each of the left and right sides of the machine frame 1, and the upper surface gluing mechanism 3 It consists of a backup mechanism 8 that can move between a backup position and a rest position.

The upper gluing mechanism 3 includes a rubber upper applicator roll 9 and a steel upper doctor roll 10 to form an adhesive reservoir therebetween, and the second gluing mechanism 6 also has a rubber upper applicator roll 9 and a steel upper doctor roll 10. A second applicator roll 11 made of steel and a second doctor roll 12 made of steel are provided, and an adhesive/agent reservoir is formed between them. The second applicator roll 11 is disposed at a position opposite to the upper applicator roll 9 of the upper adhesive mechanism 3, that is, at a backup position, and these upper and lower applicator rolls 9, 1
1 is driven by a reducer 14 connected to a motor 13 via a chain 15. Therefore, the plate material P sent between the upper surface gluing mechanism 3 and the lower surface gluing mechanism 6 from the guide 16 attached to the machine frame 1 in the illustrated state is coated with adhesive on both surfaces thereof. Next, such a device will be explained in more detail with reference to FIGS. 2 and 3. In Figure 2,
The worm/worm gear mechanism 2 includes a worm 19 provided on the handle shaft 18 of the lifting handle 17, and a worm gear 2 that engages with the worm 19 to perform horizontal rotation.
0.

At the center of this worm gear 20, the upper surface gluing mechanism 3 is provided.
An elevating shaft 23 that suspends and supports the bracket 21 via a spring 22 is screwed together. This bracket 21 is attached with a support frame 24 on which the upper coating roll 9 is supported by bearings, and which supports the upper doctor roll 10 with bearings. Guide plates 25, 25 attached to the machine frame 1
It is possible to slide up and down along the A shaft 27 of the gap adjustment handle 26 is screwed into the support frame 24.
A bearing member 28 that can slide back and forth within the support frame 24 is provided, and the upper backup roll 1 is attached to this bearing member 28.
0 is pivoted. Moreover, the bearing member 28 and the support frame 2
A spring 29 is interposed around the shaft 27 between the two. With such a configuration, the upper surface gluing mechanism 3 can be moved up and down by the lift handle 17, and can be moved up and down by the gap adjustment handle 2.
6, the distance between the upper surface coating roll 9 and the upper surface doctor roll 10 can be adjusted. On the other hand, the lower surface gluing mechanism 6 is similar to the lower surface gluing mechanism 13, and the lower surface application roll 1
1 and the lower doctor roll 12 by bearings, and a bracket 32 that is vertically slidable along guide plates 31, 31 attached to the machine frame 1. There is. to the support frame 30. The bearing-supported lower doctor roll 12 can also be adjusted in distance from the lower coating roll 11 by a gap adjustment handle 33, and its mechanism is the same as that of the upper gluing mechanism 3, and a detailed description will be given later. Omitted. The lifting mechanism 5 has a cylinder 35 equipped with a pneumatically or hydraulically operated piston 34, and this rod 36 is connected to the bracket 32 of the lower surface gluing mechanism 6.

Further, a rack 38 that meshes with a pinion 37 that is pivotally supported on the machine frame 1 is connected to the lower end of the rod 36, and a guide roller 39 is provided on the back of this rack 38. The shaft 40 of the pinion 37 is located on the side facing the pinion 37, and pivotally supports the pinion of the lifting mechanism 5 having the same configuration, so that the left and right lifting mechanisms 5, 5 operate with the same stroke. ing. Furthermore, the rod 36,
A rod 36 is provided between the cylinder body 41 and the rack 38.
By tightening and fixing these rings 42, 42 to each other at arbitrary positions, the upward stroke of the rod 36 is controlled.
The upper limit position of the lower surface gluing mechanism 6 can be adjusted by the lifting mechanism 5. The backup mechanism 8 includes a rotary arm 43 that supports a rubber backup roll 7 with a bearing at its upper end and a rotary arm 43 whose lower end is supported by a bearing on the machine frame 1, and this rotary arm 43 is rotatably supported at an approximately intermediate position. The rear end of the air cylinder 46 is rotatably supported by a support 47 attached to the machine frame 1.

Therefore, the rotating arm 43 is rotatable about the bearing support portion at the lower end by the expansion and contraction of the rod 45 of the air cylinder 46, and when the rod 45 of the air cylinder 46 is extended to the maximum, A backup roll 7 is positioned directly below the upper surface application roll 9 of the upper surface gluing mechanism 3. With such a configuration,
When the lower surface gluing mechanism 6 is lowered by the elevator 5 and the rod 45 of the air cylinder 46 of the backup mechanism 8 is extended to move the backup roll 7, as shown in FIG. The upper surface coating roll 9 of the surface gluing mechanism 3 is backed up by the backup roll 7, and coating on one side of the plate material P becomes possible. Incidentally, such switching from double-sided coating to single-sided coating or switching from single-sided coating to double-sided coating is performed using the cylinder 3 of the lifting mechanism 5.
5 and the air cylinder 46 of the backup mechanism 8 (not shown). As is clear from the above description, the present invention has the applicator rolls of a pair of upper and lower gluing mechanisms arranged so as to be able to back up each other, and at least one of the gluing mechanisms is moved between an operating position and a rest position by an elevating mechanism. The method includes a backup mechanism that can move a separately provided backup roll to a backup position relative to the applicator roll of the other gluing mechanism when the gluing mechanism is inactive; By configuring the structure to allow coating, both double-sided and single-sided coating can be performed with one gluing device, which saves equipment costs and space. Since switching between the two sides and one side can be easily and instantaneously performed, time loss can be reduced and product quality can be stabilized.

Brief explanatory drawings of the drawings show embodiments of the present invention, in which Fig. 1 is a schematic front view of the gluing device, Fig. 2 is a detailed view of Fig. 1, and Fig. 3 is a detailed view of Fig. 1.
The figure is an enlarged view of section A in FIG. 2.

1...Machine frame, 3...Top surface gluing mechanism, 5
... Lifting mechanism, 6... Bottom gluing mechanism,
7...Backup roll, 8...Backup mechanism, 9...Top coating roll, 10
...Top doctor roll, 11...Bottom coating roll, 12...Bottom doctor roll,
13...Motor, 14...Reducer, 15
··chain.

Claims (1)

[Claims] 1 A gluing device having at least one pair of upper and lower gluing mechanisms each having an applicator roll and a doctor roll and capable of coating both sides of an object to be coated, wherein each of the applicator rolls of the pair of upper and lower gluing mechanisms is backed up with respect to each other. At least one of the gluing mechanisms is movable between an operating position and a rest position by an elevating mechanism, and a separately provided backup roll is provided to move the other gluing mechanism when the other gluing mechanism is out of service. A gluing device characterized in that it is equipped with a backup mechanism that is movable to a backup position relative to the applicator roll, and is configured to enable single-sided coating on an object to be coated.