JP4914636B2 - Plate body conveying method and apparatus - Google Patents

Description

  In the present invention, a flat plate (a thin plate such as a veneer single plate) is conveyed while being displaced to an arbitrary posture. For example, the posture of a veneer veneer conveyed in a horizontal state is displaced to an upright state, or the veneer veneer conveyed in an upright state is displaced to a horizontal state, or the front and back of a veneer veneer The present invention relates to a plate conveying method and apparatus for inverting the plate.

  In general, in a plywood factory, the veneer veneer may be transferred to the next processing step while the posture of the veneer veneer is displaced depending on the transfer mode to each processing apparatus. Usually, the log is cut into a standard length, both ends of the longitudinal direction are supported by a veneer lace, and the veneer veneer is rotated and cut by feeding the long blade and the edge to the outer surface of the log. A veneer veneer is cut continuously in a state where its fiber directions are orthogonal, and is wound up as it is on a take-up reel and temporarily stored as a wound ball on a reeling deck, or cut into a fixed length. Once deposited as a pile of mountains.

  Thereafter, the veneer veneer is dried in the drying step so that the finished moisture content is 8 to 12%. The veneer dryer used in this drying process is configured by ending a pair of upper and lower chains, a wire mesh, or the like endlessly, or by arranging a set of upper and lower rolls in multiple rows in the transport direction. In general, the former veneer dryer is used to dry a continuous veneer veneer unwound from a roll, and the latter veneer dryer is cut to any predetermined width such as 2, 3, 4 ... The rectangular veneer veneer or the irregular veneer that is less than a predetermined width is conveyed with its fiber direction parallel to the conveying direction.

  The veneer veneer is initially conveyed on the belt conveyor adjacent to each other at a certain interval with the fiber direction orthogonal to the conveying direction. At the end of the belt conveyor, a roller conveyor is provided that can protrude and immerse into the conveying surface of the belt conveyor within a plurality of row intervals forming the belt conveyor. A veneer veneer conveyed adjacently at a certain interval on the belt conveyor can be freely transferred from the belt conveyor to the roller conveyor by a roller conveyor protruding from the conveying surface at the end of the belt conveyor. Each sheet is replaced as a set (for example, a set of 4 sheets).

  Therefore, the fiber direction of the veneer single plate transferred onto the roller conveyor becomes parallel to the driving direction of the roller conveyor and is inserted as it is into each conveying stage in the veneer dryer. The veneer dryer is usually configured with a plurality of stages in the vertical direction. A plurality of veneer veneers in each conveyance stage are dried while being conveyed in each conveyance stage of the veneer dryer, and reach the terminal portion. At the terminal end of the veneer dryer, a set of veneer single plates of each conveying stage is transferred onto a belt conveyor controlled so as to be able to protrude and immerse from within each interval of the roller conveyor. For this reason, the veneer veneer is conveyed again with its fiber direction intersecting the conveyance direction.

  Then, the dried veneer veneer is conveyed to the next step while being turned upside down by a reversing device. This reversing device is, for example, a pair of upper and lower belt conveyors 2 wound around a large-diameter drum pulley 1 as shown in FIG. 1 or a pair of upper and lower reversing pulleys 3 installed in the vertical distance as shown in FIG. The belt veneer 4 is sandwiched between the pair of belt conveyors 2 and conveyed. In the next step, a processing device for cutting and rowing the veneer veneer 4 is provided. In conjunction with the insertion timing of the veneer veneer 4 into the veneer dryer, the dried veneer drier is discharged from the veneer dryer. Processing of the veneer veneer 4 is performed.

  However, the conveyance is stopped due to a shift in timing when the veneer having a fixed width and / or rectangular shape as described above is inserted into the veneer dryer, or during meandering, meandering in each conveyance stage, clogging due to drying shrinkage, etc. Sometimes. At this time, particularly in the case shown in FIG. 2 described above, the veneer veneer 4 that is in the process of being folded back may fall due to insufficient clamping force. Further, according to FIG. 1 described above, the occupied space of the large-diameter drum pulley 1 becomes large, and the enlargement of the apparatus becomes a problem.

  The plurality of rows of belt conveyors are controlled to synchronize the conveyance speed of each row, and the veneer single plate is conveyed while being supported by the belts of each row in a plurality of portions extending in the direction intersecting the conveyance direction. At this time, if the veneer veneer is flat, each row of belts can be conveyed evenly in contact with a plurality of parts of the veneer veneer while maintaining its posture, and is conveyed adjacent to the front and rear. The veneer veneer is held at a constant interval. However, if the veneer veneer after drying is bent, corrugated, blown, cracked, chipped, etc. due to its properties, drying stress, etc., the veneer veneer abuts on each row of belts. The part which does not generate | occur | produce occurs and the conveyance force by a belt cannot be obtained. As a result, the transport force varies between the part that contacts the belt and the part that does not contact the belt, and the transport posture is tilted due to the biased transport. Colliding with the plate causes clogging.

  Further, in the plywood factory, the veneer veneer is conveyed while being reversed, and the conveying posture may be displaced. For example, when a plywood (parallel plywood) that has been pre-pressed at room temperature by applying an adhesive to a plurality of veneer veneers is inserted into a horizontal multi-stage press or removed after hot pressing, it changes from a horizontal state to an upright state. Alternatively, the posture is displaced from the upright state to the horizontal state.

Means for Solving the Problems and Effects of the Invention

In order to solve the above-mentioned problems, the transport method of the plate body of the present invention (thin plate like a veneer single plate)
The conveying path that receives the plate conveyed by the conveying conveyor and delivers it to the second conveying conveyor is different in the conveying direction of the conveying start end position and the conveying end position of the plate, and the conveying path is a pair of conveying bodies. And a guide body that supports the back surface of the transport body via a guide pulley or a roller, and the transport path reduces the contact area in the direction intersecting the transport direction of the plate body and is around the center of the plate body. The guide body has a curved shape twisted from the transport direction of the transport start end position of the plate body toward the transport direction of the transport end position,
Conveyors arranged opposite to each other that form a conveyance path convey the plates in close contact with each other, and convey the substrates conveyed while sandwiching the plates. And always stick to the plate ,
In any of the transport region spanning the conveying end position from the conveying starting end position of the transport path, by rotating by any angle along the outside of the guide body transportable Okukarada respect conveyance direction, it is supplied to the conveying path The plate body is conveyed from the conveyance start end position to the conveyance end position while displacing the posture and conveyance direction of the plate body.

  The transport body is installed by being rotated by an arbitrary angle with respect to the transport direction, and the plate body to be transported displaces its posture while tilting along the inclined state in which the transport body is set. Further, the installation form at the start position of the carrier can be any of an inclined state, a vertical state, and a horizontal state, and the installation form at the end position can be any of a horizontal state, an upright state, and an inclined state. That is, the conveyance surface at the start end position of the conveyance body can be set to any arbitrary inclined surface, and the conveyance surface at the end position can be set to any different inclined surface. Moreover, the conveyance surface in the starting end position of a conveyance body can be made into a vertical surface, and the conveyance surface in the terminal position can be set to a horizontal surface. It is also possible to set the transport surface at the start end position of the transport body as a horizontal plane and the transport surface at the end position as a vertical plane. The installation form of the transport surface of these transport bodies can be arbitrarily set based on the displacement posture of the transported plate body.

  Further, as these installation forms, the transport body is generated so that the transport surface is inclined while tilting from the horizontal plane and reaches the horizontal plane again, and the front and back surfaces of the transport body are displaced while sequentially shifting the transport posture of the plate body in the transport direction. It is also possible to invert. The transport body is arranged so that the height of the transport surface is different at the start end position and the end position, and the posture of the transport body is displaced when the transported plate body is transported from the start end to the end of the transport path. It is also possible to install them at different conveying heights.

  The transport body can be set by reducing the contact area in the direction intersecting the transport direction of the plate body. That is, the conveyance body is not in contact with the entire width of the plate body, and is in close contact with the contact area with the plate body, and the contact area is preferably the conveyance center of the plate body. It is made into the site | part of the center vicinity over the direction which cross | intersects the conveyance direction applicable to a line. In this case, in order to ensure the clamping state of the plate body, it is desirable to configure the pair of opposed conveying bodies with members having a tensioned state and / or a high friction coefficient. Therefore, the bias conveyance as described above is prevented, and the plate body is conveyed in a state in which the posture is maintained, and inconveniences such as collision with the next plate body adjacent to the front and rear are avoided.

  In particular, if there is a difference in height between the transport start end position and the transport end position of the plate body, and the transport body is in contact over almost the entire width of the plate body, the plate body is moved inside and outside during the process of descending while being twisted. A circumferential speed difference occurs. For this reason, for example, when the plate is a fragile material, a tensile force is generated at a portion located on the outer side in the transport direction, which causes cracks, breaks, tears, and the like in the fiber direction. However, as described above, if the transport body is arranged in a portion around the center of the plate body and the contact area with the plate body is generated so as to be extremely small and in close contact with the plate body, the plate body has an adverse effect due to a difference in peripheral speed. Is eliminated.

  Further, in an arbitrary transport region extending from the start end to the end of the transport path, the pair of transport bodies are arranged at an angle of 180 degrees with respect to the transport direction while being arranged in a state of being rotated approximately 180 degrees at the end portion, The plate supplied to the conveying path can be also obtained by inverting the front and back surfaces of the plate at the end position.

In addition, in order to solve the above problem, the plate conveying apparatus of the present invention is
The conveying path that receives the plate conveyed by the conveying conveyor and delivers it to the second conveying conveyor is different in the conveying direction of the conveying start end position and the conveying end position of the plate, and the conveying paths are opposed to each other. A pair of arranged transport bodies and a guide body that supports the back surface of the transport body via a guide pulley or roller, and the transport path reduces a contact area in a direction intersecting the transport direction of the plate body. Along with the center of the plate body,
The guide body has a curved shape twisted from the conveyance direction of the conveyance start end position of the plate body toward the conveyance direction of the conveyance end position,
A pair of carrier to form a transport path, brought into close contact at all times with respect to the plate member maintains the tensions state, in any of the transport region spanning transfer terminal end position from the conveyance start position of the conveying path, transportable Okukarada rotated by any angle along the outside of the guide member with respect to the conveyance direction, the conveying surface is to generate a twisted state over the conveying direction, plate member supplied to the conveying path from the conveying starting end position It is characterized in that it is transported while displacing the posture and transport direction of the plate body to the transport end position.

When the transported plate is transported while its posture is displaced from the start end to the end of the transport path, the transport path of the plate formed by the transport body is at its start and end positions. It is also possible to arrange them at different conveyance heights, and when there is a difference between the height position of the start end of the conveyance path and the height position to which the plate to be conveyed is delivered, this conveyance path changes its posture. It is possible to cope with the difference in height.
The transport body can be set by reducing the contact area in the direction intersecting the transport direction of the plate body. That is, the conveyance body is not evenly in contact with the entire width of the plate body, and the contact area with the plate body is set to be extremely small, and the contact area is preferably a conveyance direction corresponding to the conveyance center line of the plate body. It is made into the site | part around the center of a board body covering the direction which cross | intersects. For this reason, each conveyor will be arrange | positioned by making a contact | adherence-like body limitedly in the site | part of the center vicinity over the direction which cross | intersects the conveyance direction of a board | plate body.

  Further, in the transport region from the start end to the end of the transport path, it is desirable that the transport surface for transporting the plate bodies of the pair of transport bodies facing each other in order to ensure the clamping state of the plate bodies is made of a high friction coefficient member. Further, in the transport region from the start end to the end of the transport path, at least one transport body is provided with a guide body that generates a twisted transport path in the transport direction. It is also possible to support the back surface of the transport body along the longitudinal direction, and an accurate transport path can be configured by this guide body, so that the plate body can be transported reliably.

  Further, the transport body is constituted by a belt conveyor in which a pair of belts wound between pulleys are opposed to each other in the transport direction, and the belt conveyor disposed so as to face each other has a certain constant with respect to the transport surface. A conveyance path for pressing the plate with the pressure of is formed. That is, the pair of belt conveyors are maintained in tension with each other. For example, a belt of a belt conveyor wound around an intermediate pulley between the front and rear pulleys is pressed by placing a tie pulley on the way. Has always been in tension. For this reason, the belt of the belt conveyor is always in close contact with the transported plate body, and the plate body is reliably transported without slipping.

  The transport body is configured by a roller conveyor having a pair of rollers with a roller wound between pulleys in the transport direction so as to face each other. The conveyance path for pressing the plate body with a certain pressure is formed. That is, this pair of roller conveyors is maintained in tension with each other. For example, the roller roller chain of the roller roller conveyor wound around the intermediate pulley between the front and rear pulleys has a tie pulley in the middle. Placed and pressed, always in tension. For this reason, the roller-attached chain of the roller-attached conveyor is always in close contact with the plate to be transferred, and the plate is reliably transferred without slipping.

  The transport body is constituted by a chain conveyor opposed to each other by a chain wound between chain wheels in the transport direction, and the plate conveyor is arranged at a certain pressure against the transport surface by the chain conveyors disposed facing each other. The conveyance path for pressing the body is formed. That is, the pair of chain conveyors are maintained in tension with each other. For example, the chain conveyor chain that is wound between the front and rear chain wheels via an intermediate chain wheel has a tyner chain wheel in the middle. Pressed and always in tension. For this reason, the chain of the chain conveyor is always in close contact with the transported plate body, and the plate body is reliably transported without slipping.

  The carrier is constituted by a roller conveyor composed of a plurality of rolls arranged opposite to each other in a direction crossing the conveyance direction, and the roller conveyor arranged opposite to each other causes a certain pressure against the conveyance surface. The conveyance path for pressing the plate body is formed. For example, the conveyance path for pressing the plate body includes a pair of rolls facing each other by elastically supporting the torsion coil springs at both end bearing portions of the rolls constituting the roller conveyor, and the opposed rolls are provided with the torsion coil springs. Are pressed against each other.

As examples of the transport apparatus of the plate of the preferred Naru present invention,
Transportable Okukarada is constituted by a belt conveyor are opposed to each other a pair of belts that are wound between the pulleys over the conveying direction, at any intervals in the longitudinal direction of the draft in the body guide pulley rotatably the mounting, moth Idopuri supports the back surface of the base Rutokonbeya, while rotating by any angle that the belt conveyor with respect to the transport direction, is rotated approximately 180 degrees in the transport end position, the front and back surfaces of the plate member to be conveyed It is possible to invert.

In general, a veneer dryer (not shown) for drying the veneer veneer 10 is usually configured to have a plurality of conveying stages in the vertical direction. The veneer veneer 10 having any width (2 width, 3 width, 4 width,...) Is set in a set for every arbitrary number of sheets with the fiber direction parallel to the conveying direction. (For example, a set of four sheets) is inserted into each conveying stage of the veneer dryer.
A set of veneer veneer plates 10 of each transport stage of the veneer dryer is dried while being transported at each transport stage of the veneer dryer, and is transferred onto the connected transport conveyor 11 at the terminal end.
The conveyor 11 connected on the terminal end side of the veneer dryer is constituted by a roller conveyor, and a belt conveyor that is controlled so as to be able to protrude and immerse is disposed within a roll interval of the roller conveyor. The veneer veneer 10 of a set of a plurality of sheets conveyed by a roller conveyor roll is transferred to a belt conveyor protruding upward from each interval of the roller conveyor roll. For this reason, the veneer veneer 10 is conveyed in series on the conveyor 11 constituted by a belt conveyor in a state where the veneer veneer 10 intersects the conveying direction again in series. become.
Then, at the end of the conveyor 11, a transport path 13 is transported to the next processing step by the second conveyor 12 while displacing the dried veneer veneer 10 one by one, such as turning over one by one. It is connected.

A conventional example of the transport path 13 is shown in FIG. 1 and FIG. 2, but as described with reference to FIG. 3 to FIG. 14 according to each embodiment of the present invention, the present invention provides the transport path 13. In order to improve, the conveyance path 13 is composed of a pair of conveyance bodies 14 arranged to face each other, and the veneer veneer 10 is sandwiched by the conveyance bodies 14 and conveyed to the next processing step. One sheet is sent out toward the second transfer conveyor 12.
FIG. 3 shows an embodiment of one aspect of the present invention, and the pair of transport bodies 14 of this embodiment is a belt conveyor composed of an inner belt 16 and an outer belt 17 that are driven together by a drive device (not shown). 15, a pair of front pulleys 18 are disposed on the conveyor 11 side, and a pair of rear pulleys 19 are disposed on the processing step side. A pair of belt conveyors 15 is driven by rotating the front and rear pulleys 18 and 19 or the intermediate pulley 20 by a driving device (not shown).
On the conveying surface of the veneer veneer 10, the pair of belt conveyors 15 oppose the front and rear pulleys 18 and 19 and the inner belt 16 and the outer belt 17 wound around the intermediate pulley 20 to each other.
The inner and outer belts 16 and 17 between fixed pulleys such as the intermediate pulley 20 of the belt conveyor 15 are pressed by an internal spring device and the inner and outer belts 16 wound around the belt conveyor 15 are pressed. -To maintain the 17 tension state, the tire pulley 21 is appropriately arranged.

The pair of belt conveyors 15 constituting the transport body 14 receive the veneer veneer 10 from the transport conveyor 11 side at the start position, and deliver the veneer veneer 10 to the second transport conveyor 12 at the end position. In the meantime, the conveyance path 13 of the veneer veneer 10 is provided with a difference in height between the start position and the end position, or the conveyance direction is bent and converted into an L shape, or the conveyance direction is converted to an orthogonal state, It has a form such that the front and back surfaces are reversed by twisting in the transport direction.
The transport path 13 shown in the embodiment of FIGS. 6 and 7 is such that the second transport conveyor 12 disposed below the transport conveyor 11 transports the veneer veneer 10 in the direction opposite to the transport conveyor 11. The transfer path 13 is formed with a difference in height between the start position and the end position and the transfer direction is reversed. The transfer body 14 constituting the transfer path 13 has a difference in height from the start end. Is formed with a semicircular curvature in an arbitrary transport region up to the lower end disposed in the position, and the position of the transport surface of the transport body 14 from the start end to the end is approximately 180 degrees. Will be displaced.
For this reason, the upper surface of the veneer single plate 10 which is conveyed by the conveyance conveyor 11 becomes the lower surface of the second conveyance conveyor 12, and the veneer single plate 10 can be conveyed by being reversed by the conveyance body 14. Is reliably held between the pair of belt conveyors 15 and can be transported toward the second transport conveyor 12 without disturbing the transport mode.

In addition, when the transport path 13 is reversed to a U-shape as described above, or is constituted by a pair of transport bodies 14 along a semicircular curvature bent into an L-shape as another form, the embodiment of FIG. In addition to reversing as in FIG. 3, it is possible to configure the conveying path 13 with further twists as in the embodiment of FIG. 3.
That is, the transport body 14 configured by a belt conveyor 15 having a pair of curved transport surfaces is configured by reducing the contact area in the direction intersecting the transport direction of the veneer veneer 10 and twisting the transport surface. The pair of belt conveyors 15 can be operated even in a state in which is added.
If it is this conveyance form, the belt conveyor 15 can set the contact area with the veneer veneer 10 very few, without contacting uniformly with respect to the full width of the veneer veneer 10, and the contact area is suitably The region around the center in the direction intersecting the conveyance direction corresponding to the conveyance center line of the veneer veneer 10 is in a close contact state and is sandwiched between the belts of the belt conveyor 15 and the conveyance surface is twisted. However, the veneer veneer 10 can be reliably conveyed.
In this way, when the belt conveyor 15 is limitedly arranged in a portion around the center in the direction intersecting the conveying direction of the veneer veneer 10, it is surely conveyed even on a conveying surface having a twist. In order to secure the sandwiched state of the veneer veneer 10, the conveying surface for conveying the veneer veneer 10 of the pair of belt conveyors 15 facing each other is formed with rubber, and the surface is formed in an uneven shape. It is desirable that the veneer veneer 10 is made of a material having a high coefficient of friction that increases the conveyance holding force.

In the embodiment shown in FIG. 3, the veneer veneer 10 inserted horizontally from the transport conveyor 11 into the pair of transport bodies 14 is guided by the transport body 14 along a semicircular curvature and twisted 180 degrees. The veneer veneer 10 is turned upside down when it is conveyed and reaches the end. In other words, the veneer veneer 10 is inevitably reversed by being conveyed along a semicircular curvature, and substantially when the veneer veneer 10 is transferred to the second conveyer 12, the conveyance path. Similarly to the start position of 13, the inserted horizontal state is restored.
Further, in the embodiment of FIG. 3, the second conveying conveyor 12 is twisted so that the conveying direction of the second conveying conveyor 12 is 90 degrees different from that of the conveying conveyor 11. In the embodiment of FIG. While the veneer veneer 10 is in the original horizontal state, the veneer veneer 10 can be conveyed in any direction, and a very versatile conveyance path 13 is disclosed.

In addition to the horizontal state of the illustrated veneer veneer 10 depending on the form of the conveyor 11, the veneer veneer 10 is held in an inclined state or a horizontal state. A conveying conveyor 10 for conveying is known, and the conveying apparatus of the present invention can receive the veneer veneer 10 from the conveying conveyor 11 which is conveyed in any of the inclined state, the vertical state, and the horizontal state. Moreover, the installation form in the terminal position of the conveyance body 14 can be any of a horizontal state, a vertical state, and an inclined state according to the conveyance form of the second conveyance conveyor 12 to be transferred.
That is, since the transport body 14 is configured by reducing the contact area in the direction intersecting the transport direction of the veneer veneer 10, the transport surface at the starting end position of the transport body 14 is adjusted to an arbitrary transport conveyor 11. The veneer veneer 10 can be conveyed as an inclined surface, and the conveying surface at the terminal position can be set to another inclined surface that matches an arbitrary second conveying conveyor 12.
At this time, the conveyance surface at the start end position of the conveyance body 14 can be set as a vertical surface, and the conveyance surface at the end position can be set as a horizontal plane. It is also possible to set the conveyance surface at the start end position of the belt conveyor 15 as a horizontal plane and the conveyance surface at the end position as a vertical plane. Such displacement of the position of the veneer veneer 10 from the vertical state to the horizontal state and from the horizontal state to the vertical state is particularly effective for insertion / removal to / from the horizontal multi-stage press. The installation form of the conveyance surface of these conveyance bodies 14 can be arbitrarily set based on the displacement attitude | position of the veneer single board 10 conveyed.

In this way, an embodiment using a pair of belt conveyors 15 is disclosed with reference to FIGS. 3 to 5 in order to construct a conveying surface having a difference in height from the starting end position to the ending position of the conveying member 14 and torsion. is doing.
That is, since the conveyor 14 has a height difference and forms a torsionally conveyed conveyor surface, at least the back surface of the curved belt conveyor 15 matches the shape of the conveyor surface of the conveyor 14. A guide body 22 is installed. The guide body 22 is formed on the basis of the posture of the veneer veneer 10 that is transported and displaced, and is formed by deforming the long rod-shaped body under a certain curvature that matches the shape of the transport surface of the transport body 14. The starting end faces the end of the conveyor 11 and the other end faces the front end of the second conveyor 12 and is directed to the processing step of the next veneer veneer 10.

The guide body 22 composed of this long rod-shaped body is in an arbitrary transport region from the start end of the transport path 13 of the veneer veneer 10 to the lower end disposed with a height difference. The veneer veneer 10 is transported from the transport conveyor 11 toward the second transport conveyor 12 whose transport direction has been changed.
The curved guide body 22 is arranged on the back side of the inner belt 16 of the belt conveyor 15 in FIG. 3. As described in detail in FIGS. A plurality of guide pulleys 23 are rotatably attached to the body 22 via brackets 24 at an arbitrary interval in the longitudinal direction of the guide body 22 as shown in FIG. The guide pulley 23 is positioned outside the curved guide body 22 and supports the back surface of the inner belt 16.
Each guide pulley 23 that supports the back surface of the inner belt 16 is attached by being rotated by an arbitrary angle along the longitudinal direction of the guide body 22 so that the transport surface of the transport body 14 is twisted in the transport direction. It is possible to generate so as to be generated.
That is, in the form of the embodiment shown in FIG. 3, the guide pulley 23 is located below the veneer veneer 10 that is transported by being positioned above the guide body 22 at the start end position of the transport path 13 on the transport conveyor 11 side. Although located on the side, it is located above the veneer veneer 10 that is conveyed below the guide body 22 at its end portion, and the guide pulley 23 is located from the starting end position of the conveyance path 13. It will be attached in a state of being rotated by almost 180 degrees before reaching the end position.

Further, the guide body 22 is generated along a semicircular curvature, and a plurality of guide pulleys 23 are rotatably attached via brackets 24 at arbitrary intervals along the longitudinal direction thereof. The guide pulley 23 supports the back surface of the inner belt 16 of the belt conveyor 15, and the outer belt 17 is also supported by the guide pulley 23 in close contact with the inner belt 16 along the semicircular curvature from the outside. ing.
At this time, each guide pulley 23 is rotated and attached at an arbitrary angle with respect to the longitudinal direction of the guide body 22, so that the conveying surface of the belt conveyor 15 is twisted in the conveying direction, and its upward starting end. The position of the guide pulley 23 was displaced approximately 180 degrees from the end to the downward end, and the transport surface of the veneer veneer 10 could be twisted in the transport direction of the second transport conveyor 12.

The transport surface of the transport body 14 is inverted by displacing the transport surface by displacing the transport surface by the guide body 22 and a guide pulley 23 attached to the guide body 22, so that the transport conveyor 11 moves to the pair of belt conveyors 15. The inserted veneer veneer 10 is lowered while rotating in a twisted manner along the conveying path 13 formed in a twisted state due to the pressing state from each guide pulley 23, and is displaced in the conveying direction at the terminal position. At the same time, it is rotated approximately 180 degrees, and its front and back surfaces are reversed.
Thus, when there is a difference in height between the conveyance start end position and the conveyance end position of the veneer veneer 10 and an arc-shaped curvature is formed in the conveyance path, the inside of the veneer veneer 10 is lowered while being twisted. A circumferential speed difference occurs on the outside.
However, as described above, if the belt conveyor 15 is disposed in a region around the center of the veneer veneer 10 and has a very small contact area with the veneer veneer 10 and is in close contact with the veneer veneer 10, The adverse effects caused by the inner peripheral speed difference are eliminated. That is, the tensile force generated in the portion located outside the transport direction of the veneer veneer 10 is reduced, and it becomes possible to prevent the veneer veneer 10 from being cracked, broken, broken or the like in the fiber direction. .

Instead of the pair of belt conveyors 15 in the embodiment of FIG. 3, in the embodiment shown in FIG. 8, the transport body 14 has the roller-attached chain 31 wound between the pulleys 30 facing each other in the transport direction. It can also be constituted by a pair of conveyors 32 with rollers.
The roller-equipped conveyor 32 has a pair of pulleys 30 arranged on the conveying conveyor 11 side which is the start position and the second conveying conveyor 12 side which is the end position, and a pair of roller-conveyors 32 wound around the pulley 30. Forms a conveying surface of the veneer veneer 10 along a semicircular curvature from the starting end position to the ending position, and there is a pair of roller conveyors 32 with respect to the conveying surface of the veneer veneer 10 The veneer veneer 10 is sandwiched between them while being pressed with a certain pressure.
That is, an intermediate pulley 33 is disposed on each roller-attached chain 31 wound between the pulleys 30, and the roller-attached chain is installed near the fixed pulley such as the pulley 30 or the intermediate pulley 33 by an internal spring device. A tie pulley 34 that presses 31 is disposed, and the pair of roller conveyors 32 are maintained in a tensioned state and / or a pressed state with respect to each other by the tie pulley 34. The veneer veneer 10 is conveyed while always in close contact.
As shown in detail in FIG. 9, a guide body 35 that matches the form of the transport surface is installed on the back side of the roller-attached chain 31 constituting the transport body 14. The roller-attached chain 31 is rotatably supported along the outer surface, so that the back surface of the roller-equipped conveyor 32 is supported by the guide body 35 in a pressed state.
For this reason, when the pair of conveyors 32 with rollers are driven in an interlocking manner by a drive device (not shown), the roller conveyor 32 on the guide body 35 side is rotated by the roller chain 31 on the outer surface of the guide body 35. The other roller conveyor 32 is positioned outside the roller conveyor 32 disposed inside, and the veneer veneer 10 is sandwiched between a pair of roller chains 31, and the guide The roller-attached chain 31 that rotates along the outer surface of the body 35 moves the veneer veneer 10 to the next processing step while making the conveyance speed of the sandwiched veneer veneer 10 faster than the moving speed of the roller conveyor 32. It can be transported to the front end of the second transport conveyor 12 that has been exposed.

In place of the pair of belt conveyors 15 in the embodiment of FIG. 3, in the embodiment shown in FIG. 10, the transport body 14 is a pair of chains 41 wound between chain wheels 40 across the transport direction. The chain conveyor 42 can also be used.
In the chain conveyor 42, a pair of chain wheels 40 are arranged on the conveyor belt 11 side which is the start position and the second conveyor belt 12 side which is the end position, respectively, and a pair of chain conveyors 42 wound around the chain wheel 40 is disposed. Forms a conveying surface of the veneer veneer 10 along a semicircular curvature from the starting position to the ending position, and a pair of chain conveyors 42 are fixed to the conveying surface of the veneer veneer 10. And the veneer veneer 10 is sandwiched between them.
That is, an intermediate chain wheel 43 is disposed between the chains 41 wound between the chain wheels 40, and a fixed chain wheel such as the chain wheel 40 or the intermediate chain wheel 43 is provided by an internal spring device. A tie chain 44 that presses the chain 41 is disposed, and the pair of chain conveyors 42 are maintained in a tension state and / or a pressed state by the tie chain 44 so that the chain 41 is transported to the veneer veneer 10 to be conveyed. The veneer veneer 10 is conveyed while always in close contact.
As shown in detail in FIG. 11, a guide body 45 matching the form of the transport surface is installed on the back side of the chain 41 constituting the transport body 14, and the guide body 45 has its longitudinal direction. A guide roller 46 is rotatably supported at an arbitrary interval across the direction, and the back surface of the chain conveyor 42 is supported by the guide body 45 in a pressed state.
For this reason, when the pair of chain conveyors 42 are interlocked and driven by a drive device (not shown), the veneer veneer 10 is sandwiched between the pair of chains 41 while the back side of the chain 41 is supported by the guide rollers 46. Then, the veneer veneer 10 can be transported to the front end portion of the second transport conveyor 12 that has been subjected to the processing step for the next-stage veneer veneer 10.

Instead of the pair of belt conveyors 15 in the embodiment of FIG. 3, in the embodiment shown in FIG. 12, the transport body 14 is a pair of a plurality of rolls 50 arranged facing each other in a direction intersecting the transport direction. The roller conveyor 51 can be used.
The roller conveyor 51 can transport the veneer veneer 10 between the transport conveyor 11 side which is the start position and the second transport conveyor 12 side which is the end position. The roller conveyors 51 are arranged in a shape similar to the surface, and the roller conveyor 51 is reversed to a U shape, bent into an L shape, or twisted, while the rolls 50 are transported on the veneer veneer 10. The veneer veneer 10 is sandwiched and conveyed while being pressed with a certain pressure.
As shown in detail in FIGS. 13 and 14, each roller conveyor 51 includes two guide bodies 52 that match the form of the transport surface of the transport body 14, and the rolls 50 are arranged at both ends thereof. The bearing portion 53 is supported by the guide body 52 via a torsion coil spring 54 in a resilient manner. Therefore, the pair of roller conveyors 51 are pressed against each other by the torsion coil spring 54 so that the pair of opposed rolls 50 are in contact with each other.
Therefore, when the individual rolls 50 of the pair of roller conveyors 51 are rotationally driven by a driving device (not shown), the rolls 50 elastically supported via the torsion coil springs 54 are conveyed from the conveyor 11. The veneer veneer 10 thus received is sandwiched and received while the roll 50 on the front end side is rotating, and the veneer veneer 10 is moved between the pair of rolls 50 by the rotational drive of the roll 50, so that the next stage The veneer veneer 10 can be transported to the front end portion of the second conveyor 12 that has been subjected to the processing step.

  The present invention follows the fundamental technical idea, and can be implemented by changing a part of the above-described embodiments within a range that does not significantly impair the effects of the invention. Included in the range.

The perspective view which shows the conventional inversion apparatus. The perspective view which shows the conventional inversion apparatus. The perspective view which shows one form of this invention. The principal part expansion perspective view of FIG. The side view of FIG. The side view which shows the other form of this invention. The side view of FIG. The perspective view which shows the other form of this invention. The principal part enlarged side view of FIG. The side view which shows the other form of this invention. The principal part enlarged side view of FIG. The perspective view which shows the other form of this invention. The principal part expansion perspective view of FIG. The side view of FIG.

Explanation of symbols

10 Plate (Veneer veneer)
11 Conveyor 12 Second Conveyor 13 Conveying Path 14 Conveying Body 15 Belt Conveyor 16 Belt (Inside)
17 Belt (outside)
18 Pulley (front pulley)
19 Pulley (rear pulley)
20 pulley (intermediate pulley)
22 Guide body 23 Guide pulley 30 Pulley 31 Roller chain 32 Roller conveyor 40 Chain wheel 41 Chain 42 Chain conveyor 50 Roll 51 Roller conveyor

Claims (16)

The transport path that receives the plate body transported by the transport conveyor and delivers it to the second transport conveyor is different in the transport direction of the transport start end position and the transport end position of the plate body,
The transport path is composed of a pair of transport bodies and a guide body that supports the back surface of the transport body via a guide pulley or a roller, and the transport path is a contact region extending in a direction intersecting the transport direction of the plate body. And is disposed in a portion around the center of the plate,
The guide body has a curved shape twisted from the transport direction of the transport start end position of the plate body toward the transport direction of the transport end position,
The transport bodies arranged opposite to each other that form the transport path are transported in a close contact state with the plate body sandwiched therebetween, and the transport body that sandwiches and transports the plate body is , Maintaining a tension state, and always sticking to the plate ,
In any of the transport region spanning the conveying end position from the conveying starting end position of the transport path, by rotating by any angle in front Symbol carrier relative conveyance direction along the outside of the guide member, to the conveying path A plate conveying method, wherein the supplied plate is conveyed from a conveyance start end position to a conveyance end position while displacing a posture and a conveyance direction of the plate body.   The plate transport method according to claim 1, wherein the transport body is generated such that a transport surface thereof extends from a certain inclined surface to a different inclined surface, and the transport state of the plate body is sequentially displaced toward the transport direction.   The said conveyance body is produced | generated so that the conveyance surface may incline and incline from a horizontal surface, and it may reach again to a horizontal surface, The front and back are reversed, shifting the conveyance attitude | position of a board sequentially toward a conveyance direction. The board conveying method of description. The transport body is arranged such that the height of the transport surface is different at the start position and the end position,
2. The plate transporting method according to claim 1, wherein the transported plate is displaced in posture when transported from the start end to the end of the transport path, and the transport height is different.   The conveyance method of the plate body of any one of Claim 1 thru | or 4 with which the conveyance surface which conveys the plate body of the said conveyance body is comprised with the member of a high friction coefficient.   Arranged in an arbitrary transfer area from the transfer start end position to the transfer end position on the transfer path while rotating the pair of transfer bodies by an arbitrary angle with respect to the transfer direction while rotating the transfer end position by approximately 180 degrees. 6. The plate conveying method according to claim 1, wherein the plate supplied to the conveying path reverses the front and back surfaces of the plate at the conveyance end position. . The transport body is constituted by a belt conveyor in which a pair of belts wound between pulleys are opposed to each other in the transport direction,
The board | substrate conveyance method of any one of Claim 1 thru | or 6 with which the said conveyance path is formed of the belt conveyor arrange | positioned facing each other. The transport body is constituted by a conveyor with a roller in which a pair of rollers with a roller wound between pulleys across the transport direction are opposed to each other.
The board | substrate conveyance method of any one of Claim 1 thru | or 6 by which the conveyance path is formed of the conveyor with a roller arrange | positioned facing each other. The transport body is constituted by a chain conveyor in which a pair of chains wound between chain wheels across the transport direction are opposed to each other.
The plate conveying method according to any one of claims 1 to 6, wherein the conveying path is formed by chain conveyors arranged to face each other. The transport path that receives the plate body transported by the transport conveyor and delivers it to the second transport conveyor is different in the transport direction of the transport start end position and the transport end position of the plate body,
The transport path is composed of a pair of transport bodies arranged opposite to each other and a guide body that supports the back surface of the transport body via a guide pulley or a roller, and the transport path includes a transport direction of the plate body While reducing the contact area over the intersecting direction, it is arranged at the site around the center of the plate,
The guide body has a curved shape twisted from the transport direction of the transport start end position of the plate body toward the transport direction of the transport end position,
A pair of said carrier to form said transport path, brought into close contact at all times with respect to the plate member maintains the tensions state,
In any of the transport region spanning transfer terminal end position from the conveyance start position of the conveying path, it is rotated by an arbitrary angle along the outside of the guide body prior Symbol carrier transportable relative feeding direction, its conveying surface Causing a twisted state in the transport direction,
The plate body transporting apparatus, wherein the plate body supplied to the transport path is transported from a transport start end position to a transport end position while displacing a posture and a transport direction of the plate body. The plate conveying apparatus according to claim 10 , wherein the conveying path of the plate formed by the conveying member is arranged with different conveying heights at a start end position and an end position. The board | substrate conveyance apparatus of Claim 10 or 11 with which the conveyance surface which conveys the plate body of the said conveyance body is comprised with the member of a high friction coefficient. The transport body is constituted by a belt conveyor in which a pair of belts wound between pulleys are opposed to each other in the transport direction,
The plate conveying apparatus according to any one of claims 10 to 12 , wherein the conveying path is formed by belt conveyors arranged to face each other. The transport body is constituted by a conveyor with a roller in which a pair of rollers with a roller wound between pulleys across the transport direction are opposed to each other.
The board | substrate conveyance apparatus of any one of Claim 10 thru | or 12 with which the conveyance path is formed of the conveyor with a roller arrange | positioned mutually facing. The transport body is constituted by a chain conveyor opposed to each other by a chain wound between chain wheels in the transport direction,
The board | substrate conveyance apparatus of any one of Claim 10 thru | or 12 in which the said conveyance path is formed of the chain conveyor arrange | positioned mutually opposed. The transport body is constituted by a belt conveyor in which a pair of belts wound between pulleys are opposed to each other in the transport direction,
A guide pulley is rotatably mounted at an arbitrary interval in the longitudinal direction of the guide body,
The guide pulley supports the back surface of the belt conveyor, and rotates the belt conveyor at an arbitrary angle with respect to the transport direction while rotating the belt conveyor by approximately 180 degrees at the transport end position, thereby transporting the front and back surfaces of the plate body to be transported. The plate body conveying device according to claim 10 , wherein the plate body conveying device is reversed.

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