JPS5813338B2 - Mokushitsuboujiyousaihenkarabanjiyobutsuoseikeisurusouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for forming wood rod-like strips elongated in the direction of the fibers obtained by processing veneer scraps into a plate shape, and the present invention relates to an apparatus for forming wood rod-like strips into a plate shape, which are obtained by processing veneer scraps, and are formed using the product thickness as a standard. It is constructed so that a layered material is formed with an appropriate head in a vertical state using a forming path with a narrow cross section, and this forming path is rotated in a horizontal state so that the layered material is transferred horizontally and pressed. The object of the present invention is to provide an apparatus capable of molding such rod-like strips into a plate-like product having uniform directionality, uniform thickness, and uniform density with such a simple configuration.

The rod-shaped strips to be molded in the apparatus of the present invention are those in which the veneer layer A as shown in FIG. Venya scrap A is generally used as the core board of plywood, and its thickness is 1
There are about 3 mm to Amtn, and the rod-shaped strip B obtained by processing this is 1. 3 7gl+! X1. 3 mm to 1
．． It is a bar-shaped strip with a cross section of 3 mm x 4'11171 and a length of about 30 cfrL to 90 crfL.

It is extremely difficult to form such rod-like strips into plates with uniform orientation, uniform thickness, and uniform density. Therefore, even if the directionality is uniform, it is extremely difficult and almost impossible to achieve uniform thickness and density.

The present invention succeeded in forming this in a vertical state with a narrow cross section based on the product, and further simplified the equipment by pressing in a horizontal state.

The apparatus of the invention will be explained below by means of embodiments shown in the drawings.

Reference numeral 1 denotes an endless conveyor such as a wire mesh. The endless conveyor 1 is not limited to a wire mesh, but may be made of a thin steel plate or other material that is flexible and capable of forming an endless belt.

Chains 2, z are attached to both sides of the endless conveyor 1, and the chains 2, 2' are connected to an inlet end chain wheel 3, 3', a dog diameter chain wheel 4, 4', an outlet end chain wheel 5, and an intermediate chain wheel 6. , the driving chain wheels 7, 7', the tension chain wheels 8, 8', and the intermediate chain wheels 9, 9', and the endless conveyor 1 has a vertical section having an approximately vertical conveyance plane X-X and an approximately horizontal section. A curved approximately L-shaped conveyance path is formed at the portion of the chain wheels 4, 4' having a horizontal portion having a conveyance plane Y-Y.

Although the illustration of the driving device of the endless conveyor 1 is omitted,
The chains 2, 2' are driven by the driving chain wheels 7, 7', and the endless conveyor 1 is caused to travel in the direction shown by the arrows in FIGS. 2 and 3.

The endless band 10 is made of, for example, a wire mesh, and chains 11, 11' are attached to both sides of the wire mesh, and the chains 11, 11' are connected to the front chain wheel 12, 12' and the rear end chain wheel 1313'.
The conveyor 1 is arranged so as to span over the vertical part of the endless conveyor 1 and face the substantially vertical conveying surface XX, and the conveying surface XX is approximately parallel to the conveying surface XX and at a predetermined interval. D
These transport surfaces X-X and X-
A substantially vertical forming path F is formed by X'.

The endless belt 10 is, for example, an endless chain wheel 1 2 , 1 2'
Chain 1 1 as the driving source (driving device not shown)
, 11' are run, and the endless belt 10 is caused to run in the direction shown by the arrows in FIGS.

The front chain wheels 12, 17 are attached to the shaft 14, the rear end chain wheels 13, 13' and the large diameter chain wheels 4, 4' are respectively attached to the shaft 15 via bearings, and the carry-in end chain wheels 3, 3 are attached to the shaft 15. ' is attached to a shaft 16 via a bearing, and these shafts 14, 15 and 16 are U-shaped swinging punches 1 7 , 1
7' respectively.

The predetermined interval D is based on the shape of the U-shaped swinging punches 17, 17', the dog-diameter chain wheels 4, 4', and the rear end chain wheels 13, 1.
It is set by the difference in pitch diameter of 3'.

The receiving plate 18 is attached at both ends to the chains 1 1 , 1 1 ′ via support arms 19 , 19 ′.
', and within the forming path F, it moves from the carry-in end P to the discharge end P, that is, from the top to the bottom in the vertical state of the forming path, and its receiving surface is the cross section of the forming path F (forming path in the vertical state). It has almost the same shape and area as the (horizontal cross section), and catches the rod-shaped pieces falling into the forming path F.

The pinions 20 and 20' are the swinging punches 17 and 20', respectively.
17', the pinion 2020' meshes with the racks 21, 21' which are curved in an arched shape, and the rotation of the pinions 20, 20' causes the pinion to move along the racks. The swinging punches 17 and 17' are rotated in the direction shown by the arrow R about the shaft 15, and the forming path is turned into a forming path F in a substantially vertical state.
and the forming path y which is in a substantially horizontal state.

The rotation of the pinions 20 and 20' is driven by a swinging punch 17.
, 1 7' forward and reverse rotation motors 22, 22
’ is performed.

That is, the rotation of the drive shafts of the motors 22, 22' is performed via chains 23, 23' which are stretched between a chain wheel attached to the motor shaft and a chain wheel attached to the pinion shaft.

The press section 24 has heating plates 25 and 25' disposed at appropriate positions on the horizontal portion of the endless conveyor 1 above and below the conveyance surface Y1Y.

The carry-in conveyor 26 has a forming path F with its end Q being vertical.
It is disposed close to the upper carry-in end P, and is placed on the conveyor so that the bar-shaped strip B falls from the end Q so that its longitudinal force direction is almost horizontal and almost parallel to the conveyance plane X-X. The orientation of the strips and the direction of conveyance are set.

The rod-like strips B conveyed by the carry-in conveyor 26 are coated with an adhesive in advance, and an appropriate thermosetting adhesive such as a urea resin adhesive or a phenol resin adhesive is used as the adhesive.

The manner of implementing the present invention will be explained below.

In the apparatus of the present invention, the fiber direction, that is, the longitudinal force direction, of the rod-like strips E is oriented in the width direction of the endless conveyor 1, and the longitudinal direction is formed in a layered manner. In this case, the direction is perpendicular to the plane of the paper, and in FIG. 4, it is the left-right direction.

The dimensions of the product are determined by the longitudinal dimension L, the width dimension W (the dimension in the direction perpendicular to the fibers and the height of the forming path in the vertical state in Figures 2 and 3), and the thickness. be done.

The thickness of the product is mainly determined by the predetermined spacing D in the forming path, but it varies somewhat depending on the wood species of the strips, the pressure applied at the press section, etc.
~5 times, and pressurizing force is 15~251y/c1? If it is set at about L, an ideal product with a desired thickness and a specific gravity of about 0.5 to 0.7 can be obtained.

In this way, the rod-like strips B are oriented in the vertical forming path F in a direction perpendicular to the plane of the paper in FIGS. 2 and 3, and in a left-right direction in FIG. 4 to form a layer. Therefore, the bar-shaped strip B is carried out by the carrying-in conveyor 26.
When conveying, the directionality is oriented perpendicular to the plane of the paper in Figures 2 and 3, and approximately in the left-right direction in Figure 4, and the dimension L in the longitudinal direction is When the strips are aligned and conveyed with almost equal density in this direction, and fall from the end Q to the carry-in end P of the vertical forming path F, the longitudinal direction is the conveyance plane X-X of the endless conveyor 1. The conveyor direction is set so that the objects fall parallel and horizontally.

The procedure for forming the rod-like strips B in a layered manner on the vertical forming path F is to first stop the receiving plate at the position of the receiving plate 18' shown by the dotted line near the input end P of the forming path F, and then The head difference between the receiving surface of the receiving plate 18' and the end Q of the carry-in conveyor 26 at this position is set to an appropriate head difference H, and the carrying-in conveyor 26 is run in this state, and the rod-shaped strip B is transferred from the end Q to the receiving plate 18'. It falls on top to form a layer.

Incidentally, during this layer formation, the running of the endless conveyor 1 is stopped.

When this fall starts, the receiving plate 18' is moved downward,
This movement is performed so as to maintain an appropriate height H between the upper surface of the rod-like strips B gathered on the receiving plate 18' and the end Q, thereby preventing the strips from becoming misoriented.

Even if the rod-like strips are dropped with an appropriate head H, there may be cases where they do not fall horizontally due to differences in the shape of the rod-shaped strips in the longitudinal force direction or differences in specific gravity. A means for aligning the directionality of the strips by inserting a push plate or the like from above the carry-in end P is provided.

As described above, since the device of the present invention drops the bar-shaped strips B between the predetermined relatively narrow intervals D, the strips are formed into uniform layers between the intervals D, and their orientation is also uniform. Become.

In this way, when the bar-like strips B form a layered body C having widthwise dimension W in the forming path F, the lowering of the receiving plate 18 and the running of the carrying-in conveyor 26 are stopped, and the motors 22 and 22' are stopped.
is actuated to rotate the pinions 20, 20', move the pinions 20, 2σ along the racks 21, 21', and rotate the swinging punches 17, 17' around the shaft 15 to bring them into the vertical position. The forming path F, which is located at , is moved to the horizontal forming path y.

In this case, the layered body C rotates while being supported by the receiving plate 18 and sandwiched between the conveying surfaces of the endless conveyor 1 and the endless belt 10, so that the layered body C changes from a vertical state to a horizontal state without collapsing. The transition will take place.

When the forming path becomes horizontal, it runs on the endless belt 10 (receiving plate 1
8 also runs.

) and run the endless conveyor 1 (in this case, the running speeds of both are made equal).

) The receiving plate 18 is moved to the position indicated by the receiving plate 18', and the layered body C is moved in the direction of the press section 24.

When the layered material C reaches the press section, it is pressurized and heated, but the endless conveyor 1 is stopped during this time.

On the other hand, when the end of the layered body C passes the lower position of the shaft 15, the forming path activates the motor 22, 22' again, and the pinion 20. 20' in the opposite direction from the previous time, and
7 and 17' in the vertical direction, the forming path is returned from the horizontal state to the vertical state, and the next layer is formed in the same manner as described above.

In this case, while the press section 24 is pressurizing and heating, the forming path changes from layered formation to a horizontal state.

The plate-shaped product that has been pressed is transferred to the next process via the carry-out conveyor 27.

In addition, the press part is replaced with a pressure device such as a roller or an endless band,
The structure is such that temporary compression is performed while the endless conveyor 1 is running, and after the temporary compression prevents the layers from collapsing, a heating and pressing device (even in a multi-stage hot press) installed at the rear of the conveyor end chain wheel 5 is used. (possible)), layer formation, etc. can be performed regardless of press time, and efficiency can be further improved, and the configuration of such a press device is also included in the present invention. It is something.

As described above, the apparatus of the present invention does not perform layer formation on a wide surface of the product in width and length, but performs layer formation on a narrow area of product thickness in a vertical state and with an appropriate height, so that it is possible to form a layer in a vertical manner. When forming layers from fibers, it is possible to control the thickness, density, and directionality of the fibers with a simple device and with great precision. Since the layered material is pressed horizontally, the layered material is pressed horizontally, so the layered material is pressed in a horizontal state, making it suitable for pressing hard boards, particle boards, etc., which have been commonly used in the past. There is an advantage that the press apparatus can be simplified by using the press apparatus.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention, and FIG. 1A is a perspective view of veneer scraps, and FIG. 1B is a diagram showing the veneer scraps shown in FIG. Fig. 2 is a side view showing the whole, Fig. 3 is a detailed side view enlarging the main part of Fig. 2, and Fig. 4 is the drawing of Fig. 3 on paper. It is a front view seen from the left side. 1... Endless conveyor, 2, 2'... Chain, 3,
3'... Input end chain wheel, 4,4'... Dog diameter chain wheel, 5... Output end chain wheel, 6... Intermediate chain wheel,
7, 7'... Drive chain wheel, 8, 8'... Tension chain wheel, 9, q... Intermediate chain wheel, 10.
...Endless band, 1 1, 1 1'...Chen, 12
, 12'...Tip chain wheel, 1 3, 1 3'.
... Rear end chain wheel, 14, 15, 16... Shaft, 17,
17'...Swinging punch, 1B, 18'...Receiving plate, 19, 19'...Support arm, 20, 20'...
・Pinion, 21, 21'...Rack, 22, 27・
...Motor, 2 3, 2 3'...Chain, 2
4...Press part, 25, 25'...Heating plate, 26
5... Carrying in conveyor, 2T... Carrying out conveyor,
A: Plywood scrap, B: Bar-shaped strip, C: Layered body, D: Spacing, F, y: Forming path, P: Carrying in end, y... Carrying out end , Q... terminal.

Claims (1)

[Claims] 1. An endless conveyor such as a wire mesh is used to form a substantially L-shaped conveyance path having a vertical portion having a substantially vertical conveyance surface and a horizontal portion having a substantially horizontal conveyance surface, and the endless conveyor is placed in the vertical portion of the conveyance path. A nearly vertical forming path is formed by arranging an endless band at a predetermined distance from the conveying surface of the rod, and an adhesive is applied in advance above the vertical forming path near the feeding end of the rod-shaped strip. A receiving means is provided for causing the strips to fall so that the longitudinal direction thereof is substantially horizontal and substantially parallel to the conveyance surface of the endless conveyor, and a rod-like strip is caused to fall with an appropriate head from the end of the carrying means within the forming path. A plate is movably arranged from the input end to the output end of the forming path to form a layered body of a predetermined size with uniform directionality in the forming path, and after forming the layered body, the forming path is placed in a horizontal state. 1. An apparatus for molding a plate-like object from a wood rod-like strip, which is characterized by rotating the layered object horizontally and heating and pressurizing the layered object.