JPS6125801A - Starching device in veneer lateral barker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (a) Industrial Application Field The present invention is used in the field of plywood manufacturing, and is particularly applicable to cutting small and medium-sized veneer veneers cut with a veneer lace, veneer slicer, etc. into a blind shape. Gluing in a veneer stripping machine, which performs horizontal stripping during the continuous process, is related to improvements in equipment.

←) Prior art The gluing device of this type of veneer cross-splitting machine, which is the prior art, is similar to the pasting device of the veneer veneer cross-splitting machine of Japanese Patent Publication No. 55-40401 filed in the prior application. An adhesive is applied to the front end of the veneer veneer that is continuously conveyed by a conveyor, and then it is applied to the end of the trailing edge of the preceding veneer to form a sash-shaped joint. In a veneer veneer horizontal stripping machine for producing veneers, a gluing block is installed between the rows of the conveyor so that vertical movement can be freely controlled with respect to the conveying surface. It is formed into a gentle slope from the bottom to the top, and in the middle of the slope of the block, a discharge port for discharging an appropriate amount of adhesive and a control valve communicating with the discharge port are installed. In addition, the gluing process is performed using a plywood veneer horizontal stripping machine, in which a protruding surface is formed at the end of the inclined surface of the block, with which the end surface of the front edge of the glued veneer veneer collides. Since the attachment was with device J, each time the gluing was performed, the block was raised and lowered up and down, and the gluing was performed again after removing the front end surface of the succeeding plywood veneer that once collided with the protruding surface of the block. Attachment required intermittent lifting and lowering operations to raise the protruding surface of the block onto the conveyor line in preparation for the next collision with the front end of the following plywood veneer. Therefore, the intermittent lifting and lowering of the glued block usually requires a response time of 0.1 seconds or more, which limits the gap between the preceding and succeeding veneer veneers, and in many cases, the gap between the plates is 5 cm or less. In this case, it was not possible to apply adhesive to the front end surface.

(c) Problems to be Solved by the Invention As mentioned above, the conventional gluing machine lacks high-speed compatibility due to the intermittent lifting and lowering of the machine, and the end face joints of the rammed products end up in a state of missing HP in some places. Overlapping and tunneling in the later plywood bonding process (3).

In order to eliminate the serious drawbacks that caused quality defects such as μ and many breakage accidents due to insufficient joint strength during handling, the present invention has developed a method for gluing by simply installing the device in a fixed position. In addition, by simply controlling the adhesive discharge according to the timing of the arrival of small and medium veneers, the adhesive can be scraped and applied to the front end surfaces of the small and medium veneers that arrive one after another, and the applied adhesive can be removed. The adhesive is constructed so that it can expand the adhesion area by crushing it from the end surfaces before it hangs down due to its fluidity, and the gluing process improves the high-speed response of the device and the quality of the side-splitting product. The purpose of this is to significantly contribute to the improvement of the environment.

B) Means for Solving the Problem In order to achieve the above object, the present invention provides a conveyor for force-feeding small and medium veneers and extruding them to a subsequent process, and a rail for braking the small and medium veneers pushed out by the conveyor. In a veneer horizontal stripping machine having a member, a) a part slightly closer to the carry-in side than a stop part on the rear end surface of the leading small pile veneer where the conveyor and the rail member intersect, b) maybe L C) Gluing with freely controlled discharge is a veneer horizontal splinter with a hole in the upper inclined surface of the container fixedly facing the adhesive discharge part in a part slightly above the pressure line on the lower side of the conveyor. Gluing in a machine is a device.

(E) Function The function of the gluing device, which constitutes the main body of the present invention, and which has an adhesive discharge portion perforated in the upper inclined surface, will be described in detail as follows.
First, the front end of the succeeding small and medium veneers, which are brought in intermittently by a pressure-feeding conveyor, is brought into contact with the upper inclined surface of the container, and the adhesive is discharged from holes drilled in spots near the end of the veneer. Scrape off the adhesive such as molten hot melt resin that has been dispensed onto the surface of the small and medium veneers diagonally upwards from the front end of the small and medium veneers so that the adhesive sinks into the bottom surface of the small and medium veneers. In addition, the adhesive is applied by scraping it onto the front end surface using a tool, and due to its fluidity, it hangs down and spreads around the bottom surface of the following small and medium veneers. Before applying the adhesive, it is applied to the rear edge of the preceding small veneer, and the area where the adhesive is scraped and the area where the edge is crushed is made so that the adhesive area can be expanded by the mutual crushing action of the edge surfaces. is set within close range and fixedly.

(F) Embodiment To further explain this in detail with reference to drawings showing an example of the implementation of the present invention, the succeeding small and medium veneers 1a brought in from the previous cutting process etc. are conveyed under pressure from above and below while being conveyed in the subsequent process. The carriers 2a, 2b such as a bench or bee A/) are vertically opposed to each other, and the suppressors 4a, 4b such as a rail member equipped with a pressure member 5 such as a spring on the upper side are pushed out. The rail members 6a, 6b are arranged such that the conveyor 5 for pressure feeding is configured to be able to freely feed under pressure, and the preceding small pile veneer 1b extruded by the conveyor 5 is braked so that mutual end face K11l pressure is applied during the extrusion process.
In the extrusion type veneer horizontal stripping machine, which has main mechanisms that face each other vertically, the conveyor 5 and the rail member 6a
, 6b, slightly from the stopping point on the rear end surface of the leading small veneer 1b, for example, assuming a range of variation in braking distance due to the rail members 6a and 6b of the leading small veneer 1b.
Glue is applied to the horizontal part near the carry-in side by about 8χ, and also to the vertical part slightly above the lower pressure line of the conveyor 5, for example, by the thickness of the small and medium veneers 1a and 1b. An adhesive discharge part 8, which is perforated in the form of a spot, is fixedly faced on the upper inclined surface of the container 7, and an appropriate amount of adhesive 9, such as molten hot melt resin, is discharged into the discharge part 8 in the form of a spot. It is configured to be applied to the front end surface of the succeeding small and medium veneer 1a. Further, the control operation for discharging an appropriate amount of adhesive 9 in a spot shape from the discharging section 8 is performed by detecting the front end surface of the following small and medium veneer 1a using a veneer detector 10 such as a photoelectric switch mounted on the conveyor 5. Each time the gluing is detected, the gluing is transmitted to an operating mechanism 12 such as an air cylinder that activates the opening/closing piece 11 of the adhesive supply path attached to the container 7, and the appropriate amount of adhesive 9 is applied.
is discharged onto the discharge section 8 in a spot shape.

(G) Effects of the Invention As described above, the present invention can apply glue by simply installing the device in a fixed position, and also controls the discharge of adhesive each time according to the arrival time of small and medium veneers. The adhesive is scraped and applied to the front end surfaces of the small and medium veneers that arrive one after another, and before the applied adhesive sag due to its fluidity, the end surfaces are crushed and bonded. Since it is designed to expand the surface area, the gluing seen in conventional equipment lacks high-speed compatibility due to the intermittent lifting and lowering of the equipment, and the end surface joints of the rammed products are missing in some places. The present invention eliminates all of the serious drawbacks such as the occurrence of quality defects such as overlaps and tunnels in the subsequent plywood adhesion process due to the plywood bonding process, and the frequent breakage accidents due to insufficient bonding strength during handling. Because it only requires repeated cycles of re-discharging the adhesive to the adhesive discharging section, it is extremely responsive to high speeds, and is not only able to handle plate spacing of 1 to 2 cr. Since all end faces of the product are completely bonded, the quality of the product has been significantly improved.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention, in which FIG. 1 is a side view when the adhesive is being discharged, and FIG. 2 is a side view when the end faces are brought into contact. 1a, 1b...Small and medium veneer, 5...Conveyor, 6a. 6b...Rail member, 7...Gluing container, 8...Glue discharge part.

Claims (1)

[Claims] A veneer cross-cutting machine comprising a conveyor for force-feeding a narrow veneer and extruding it to a subsequent process, and a rail member for braking the narrow veneer pushed out by the conveyor, wherein the conveyor and the rail member are A gluing device that can freely control the discharge is applied to a portion slightly closer to the carry-in side than the stop portion of the rear end surface of the intersecting leading narrow veneer plates, and furthermore, to a portion slightly above the pressure line on the lower side of the conveyor. 1. A gluing device for a veneer side splicing machine, characterized in that an adhesive discharge portion perforated in an upper inclined surface is fixedly faced.