JPS5892503A - Method and device for separating veneer - 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 The present invention relates to separating and holding veneer veneers that have been cut by a veneer race, a veneer slicer, etc. We provide a method for reliably separating and holding the topmost veneer or a specified number of veneers depending on the required number of veneers to be supplied to the process, and a device that can directly implement this method, including a veneer dryer and a mechanism device. , adhesive coating equipment, etc. are designed to improve the efficiency of supplying veneer veneers to the next process.

Conventionally, when supplying the number of veneer veneers required for the next process, for example, one veneer veneer, from a stack of veneer veneers to the top, the veneer veneers are sucked and held using a vacuum suction AIIM. Alternatively, the needle-shaped object was stuck and held by the needle-shaped object, or two or more veneers were often fed at the same time, which significantly reduced workability in the next process. .

Generally, a veneer veneer has an extremely large number of conduit grooves scattered about, and when a vacuum absorber phosphor like the former is used.

When suctioning, pass the second and subsequent plywood veneers through this conduit groove and use the same RE! Depending on the type of wood, negative pressure may have occurred between the veneers, and the veneer itself may still be kept in a moderately moist state. The phenomenon of adsorption of veneer veneer was observed.

In addition, in the latter case, due to excessive or insufficient pressing force at the time of sticking, not only the topmost veneer veneer but also the second and subsequent pieces were simultaneously stuck. In some cases, it may not be possible to obtain the holding force to raise the temperature.

Furthermore, in the next process, a specified arbitrary number of 2 or more sheets,
For example, when 2, 8, etc. veneer veneers are required at the same time, it is necessary to separate and hold them in m% from the stack of veneer veneers in order to supply them to the next process, as described above. This is much more difficult than separating and holding the top single plywood veneer.

That is, in the former vacuum suction mechanism, the next specified number of veneer veneers are sequentially suctioned through the conduit grooves, cracks, chips, etc. of the uppermost veneer veneer, and therefore the vacuum Even if the capacity of the generation source is simply increased proportionally, as mentioned above, depending on the individual properties of the veneer veneer,
It becomes impossible to reliably separate and hold the specified number of veneer veneers.

In addition, in the latter case of sticking and maintaining, the pressing force on the needle-like body is increased according to the thickness of the specified arbitrary number of veneers, but as described above, the pressure on the needle-like body at the time of sticking is increased. Excessive or insufficient pressing force may impede proper adhesion retention, and even if a specified number of veneer veneers are attached to the temporary sheet,
The veneer veneer is simply stuck to the needle-shaped body, and as the veneer veneer increases in weight while being lifted or transported, it will gradually slide down from the veneer veneer below, making it difficult to keep it separated. Become.

In view of the above, and based on the properties of the veneer veneer to be separated and held, the present invention interposes an engaging body in the thickness direction of the veneer veneer, and connects the spiral groove portion that the engaging body has in the vertical direction and the wood fiber tS. The gist is to separate and hold a specific arbitrary number of veneer veneers by engaging with *, and below, the method of the present invention and an apparatus for directly carrying out the method will be described based on the embodiments shown in the attached drawings. First, I will explain its structure.

A pile 3 of veneer veneers 2 is placed on a lift table 1, and its upper surface position is always maintained at a constant height by an appropriate detection device (not shown).

A cross beam 5 fixed between a pair of support columns 4 is installed horizontally at an appropriate position above the pile pile 8, and a fluid cylinder 6 is mounted on at least one side of the cross beam 5, and is held at the tip of the piston rod 7. Attach combination 8.

The engaging body 8 has a sharp distal end 9, and has spiral grooves 11 formed at regular intervals over an arbitrary length between the distal end 9 and the proximal end 10, as shown in FIG. The illustrated engaging body 8 gradually becomes sharper from the base cap 1o toward the tip end 9,
The retainer 8 shown in FIG. 2 has a straight cylindrical shape from the proximal end lO to the middle part 12, and is sharpened from the middle part 12 to the distal end 9, and has a spiral shape over its entire length. A groove 11 is formed.

Furthermore, the retainer 8 shown in FIG.
This method excludes the formation of a spiral groove 11 of a predetermined distance l, and in particular, depending on the difference in the tree species of the veneer veneer 2 or the condition of the pile pile 8, when bonding to the veneer veneer 2. It serves as a guide for the veneer veneer 2, or a guide for sliding it down if it rises while engaging with more veneer veneer 2 than necessary.

Furthermore, FIG. 4 shows a case where a regulating body 18 that can come into contact with the surface of the veneer veneer 2 over a certain range is fitted onto the engaging body 8. The amount of engagement of the engaging body 8 in the thickness direction of the veneer veneer 2 is always regulated to an arbitrary amount to prevent excessive engagement, and at the same time, cracks, chips, etc. If there is a missing part such as a knot hole, it is possible to prevent the holding body 8 from holding onto the next veneer veneer 2.

The number of the engaging bodies 8 can be increased or decreased as desired depending on the size of the shape of the veneer veneer 2 to be separated and held, or the occurrence of cracks, chips, knotholes, etc. in the veneer veneer 2. In this embodiment, eight engaging bodies 8 are arranged at equal intervals for convenience.

Next, a predetermined angle rotation mechanism 1 that imparts rotation to the engaging body 8
4 will be explained.

A bracket 15 fixedly protruding from the support column 4 pivots the rear end of the fluid cylinder 16, and connects one end of a connecting body 18 to the tip of the piston rod 17. On the other hand, the guide rod 19, which is erected and fixed at the other end of the connecting body 18, and the backing beam 5
An arm rod 21 is fitted between the guide rods 20 which are erected and fixed to maintain the connecting body 18 almost parallel to the cross beam 5 in a raised state.

Further, holes are formed in the connecting body 18 at equal intervals, and the lower end of the guide shaft 22 that is loosely fitted into the hole is fitted into one end of the arm rod 21 to be in a raised state. By the extension and contraction movement of the piston rod 17, the holding body 8 is rotated by a predetermined angle, approximately 90 degrees in this embodiment.

7 shows another embodiment of the predetermined angle rotation mechanism 14, which will be described below.

A pair of machine frames 24 are drilled in parallel with each other at regular intervals in the upper part of the cross beam 5 via auxiliary struts 28, and the pair of machine frames 24 are equally spaced apart from each other.

On the other hand, the fluid cylinder 6 is of a double-rod type, and the upper piston rod shaft 25 is supported by a bearing 2G installed in the machine frame 24 located opposite the perforated portion. At this time, the chain wheel 27 is fitted into the keyed portion of the piston rod shaft 25, and the position of the chain wheel 27 is fixed from above and below with the interposition of collars 28 and the like.

Further, a clutch brake 8 which receives the drive of the prime mover 29
0 is fixed to the machine frame 24, and the clutch brake 8o is fixed to the machine frame 24.
chain wheel 81 and 1. Che 782 is suspended in the darkness of the chain wheel 27.

Therefore, the upper piston rod shaft 25 is rotated by a predetermined angle as driven by the prime mover 29, thereby imparting rotation to the engaging body 8.

Next, the action will be explained.

- First, the upper surface of the pile 8 of the veneer veneer 2 is set to a constantly constant reference plane by the operation of the lifting platform 1. In this state, each fluid cylinder 6 is actuated to extend its piston rod 7 and lower the holding body 8 onto the upper surface of the veneer veneer 2 . When the tip of the holding body 8 descends and presses against the upper surface of the veneer veneer 2, a predetermined angle rotation 5111114 is actuated via an appropriate delay device (not shown) such as a timer.

That is, in the case shown in Figs. '45 to 6, when the clockwise spiral groove 11 is formed in the retainer 8, the piston rod 17 is extended by the operation of the fluid cylinder 16, and vice versa. When the counterclockwise spiral groove 11 is formed, the piston rod 17 is moved slightly, and the arm rod 21
The engaging body 8 is rotated approximately 90 degrees through the .

In addition, in the case shown in FIG. 7, the drive of the prime mover 29 is controlled by the chain wheel 2 driven by the clutch brake 30'Ijr.
7 imparts forward or reverse rotation to the upper piston rod shaft 25, and this rotation is transmitted to the holding body 8, and the helical groove 11 of the holding body 8 is rotated in the helical direction. It will rotate by a predetermined angle.

Therefore, since the holding body 8 is rotated in the spiral direction of the spiral groove 11 while pressing the surface of the veneer veneer 2, the spiral groove 11 in the desired range is bitten in stages in the thickness direction of the veneer veneer 2. , binds to wood fibers. At this time, the veneer veneer 2 is momentarily subjected to a lifting force by the holding body 8, and lifts up slightly from the next veneer veneer 2, promoting the separation effect and then operating each fluid cylinder 6. Damn that piston rod 7
By reducing the size, a specified arbitrary number of Q veneer veneers 2 can be reliably separated and raised from the pile 8 of veneer veneers 2.

Next, in order to release the engaging body 8 from the veneer veneer 2 that has been once separated and held, the engaging body 8 is rotated in a reverse spiral direction.
E! It is dropped while applying I or directly with a drop bar 88 interposed. At this time, a circular scratch occurs on the veneer veneer 2, but the scratch t is caused by the engagement body 8 itself having a sharp tip 9, and the spiral groove 11 that engages with the main fiber being relatively soft. Since the damage to the wood fibers is minimal,9 the damage to the wood fibers is kept to a level that is slightly larger than the puncture marks from the needles used in the past, and there is no deterioration in the quality of the veneer veneer 2. It's something that doesn't exist.

The shape of the engaging body 8 and the shape and growth of the spiral #111 are as follows:
The decision may be made as appropriate depending on the different species of wood of the veneer veneer 2 to be separated and the number of veneers, and the number of engaging bodies 8 and the use of the regulating body 18 may be determined to prevent cracks or chips occurring in the veneer veneer 2. This should be determined each time depending on the distribution of missing parts such as knotholes, or the accumulation state of the heap 8. In particular, the fixed angle rotation mechanism 14 shown in FIG.
It is preferable to employ the regulating body 18 in cases where variations due to inertia are likely to occur with respect to a predetermined rotation angle, such as when transmitting rotation to a predetermined rotation angle.

As described above, according to the present invention, the tip part 9 is made sharp, and the spiral groove 11 is formed at an arbitrary length, and the corpse union 8 is interposed while rotating in the thickness direction of the veneer veneer 2, and the spiral groove 11 portion 11 tons of wood fiber [because it will be attached to the dormitory,
It is possible to eliminate the drawbacks caused by the above-mentioned suction holding or sticking holding, and to separate and hold only one veneer veneer 2 on the forged part from the pile pile 8, as well as to adjust the length of the spiral groove 11 to hold the wood fibers. If you set appropriately, you can simultaneously print any specified number of veneer veneers 2, such as 2, 3, etc., in minutes! Items that can be held, such as veneer dockers, mechanical devices, adhesive coating devices, etc., that can supply work according to the number of veneer veneers 2 required for the next process, and can improve work efficiency. It is.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the holder of the present invention, and FIGS.
The figure is a front view showing an embodiment of the same location, Figure @5 is a plan view showing an embodiment of the device of the present invention, Figure 6 is a front view of Figure 5,
The figure is a front view showing another embodiment. 2... Plywood veneer, 8... Pile pile, 8... Engaging body, 9... Tip, lO... Base end, 11... Spiral groove, 18... Regulating body, 14...Predetermined angle rotation mechanism patent applicant Taihei Seisakusho Co., Ltd.

Claims (1)

[Claims] 1. A holding body with a sharp tip and a spiral groove formed over arbitrary feldspar is pressed down onto the surface of a veneer veneer, and the holding body is moved in the spiral direction. A method for separating a veneer veneer, which comprises rotating the veneer veneer by a predetermined angle to engage the wood fibers in the thickness direction of the veneer veneer in an arbitrary spiral groove portion, and then raising the holder ≧≧. 2. A lifting device was suspended at an appropriate position above the pile of veneer veneers deposited on the lifting platform, and a spiral groove was formed in the lifting device with a sharp tip and a spiral groove in an arbitrary long bar. While attaching the engaging body, a predetermined angle LE is attached to the retaining body! A veneer veneer separation device characterized by a complete one-turn mechanism.