JPS5859154A - Transport device for thin single-plates - Google Patents

Abstract

PURPOSE:To prevent generation of wrinkle in a thin single-plate by furnishing No.2 conveyor which is to transport the thin single-plates delivered from No.1 conveyor by means of attraction at its undersurface. CONSTITUTION:This device is conposed of No.1 conveyor 2 to transport thin single-plates on its oversurface, No.2 conveyor to receive the plates 1 from No.1 conveyor 2 and forward them by attracting at its undersurface by means of the attractive force acted from above, and a guide plate 4 to catch them just given off from the tail of No.1 conveyor 2 at its oversurface and transfer to near said undersurface of No.2 conveyor 3, where the guide plate 4 is provided with a number of holes 5 to attract the single-plates to No.2 conveyor 3 by applying the atmospheric pressure to the surface of each single-plate 1 so that each single-plate 1 which has passed the guide plate 4 is attracted to the undersurface of No.2 conveyor 3. Thus generation of wrinkle during said transfer can be prevented.

Description

[Detailed description of the invention]

The present invention relates to a conveying device for thin veneers, more specifically, a first conveyor device for conveying thin veneers with the thin veneers placed on the upper surface for forming decorative plywood etc.
The present invention relates to a thin veneer conveying device having a Koshibear and a second Koshibear that picks up the thin veneer from the first Koshibear and conveys the thin veneer by adsorbing the thin veneer to its lower surface. Conventionally, in the case of decorative plywood, which is formed by laminating thin veneers, in order to convey the thin veneer, in addition to the usual conveyor that carries a thin veneer sheet metal on the top surface, the thin veneer is Koshibear is used to transport thin veneers by adsorbing them to the bottom surface so that they can be dropped from above and stacked one after another. That is,
Of each conveyor that conveys thin veneers, a Koshibear that sucks the thin veneer on its lower surface is installed at the end of the conveyor in the direction in which the thin veneer travels. However, the uke is passed. By the way, the Fushibear for sucking the thin veneer upward is configured so that the suction force is uniformly plowed along the width direction of the thin veneer. Therefore, when the thin veneer is transferred from the conveyor to the next Koshiveer, it is expected that the leading edge of the thin veneer will lift up almost simultaneously on a straight line along the width direction. However, in reality, when the thin veneer lifts up, the front edge of the thin veneer is completely lifted due to the influence of differences in hardness of the thin veneer and slight differences in air flow in a straight line along the width direction of the thin veneer. At the same time, the thin veneer is not adsorbed by Koshivea, and therefore the thin veneer is sometimes adsorbed by [Koshibea] with a wrinkled appearance. Once wrinkles occur, they are difficult to straighten out, and this also has the disadvantage of causing cracks in the wrinkly thinning board and degrading the quality of the product. The present invention has been made in view of the above-mentioned problems, and its main purpose is to prevent wrinkles from forming on thin veneers when they are transferred from conveyor to conveyor. Prevention is in the corner. 1. Examples of the present invention will be described based on the drawings. The conveying device for thin veneers according to the present invention includes a first conveyor (21) that carries #small plates 11) on a surface and conveys them in one direction, and a receiver for thin veneers from the first conveyor +211-. The second conveyor (3) attracts and conveys the thin veneer 11) to the lower surface by the suction force acting from the top, and the thin veneer 11) sent from the end of the first conveyor (2) is received and picked up on its upper surface. The thin veneer plate (1) of the lever is moved to the lower surface of the second stiff bear 13), and the kite plate (4) is equipped with a thin veneer plate 11).
By applying atmospheric pressure to the surface, the thin veneer 111 is moved from the rear end to the front along the traveling direction of the thin veneer 111. The number of through holes (6) lined up in the width direction gradually increases as the number of through holes (6) lined up in the width direction increases, and the kite plate (41) is sent to the rear end of the kite plate (4) at one place in the width direction of the front edge on the second conveyor 13). As the thin veneer to be suctioned to the lower surface advances on the guide plate (4), the suction portion is gradually expanded from the part initially suctioned to the second sheet 7) 131 to the remaining part, Thin veneer (1
) The part that passed through the kite board 14) is the second
It is characterized in that it is attracted to the lower surface of the conveyor (3), and in this embodiment, an example is shown in which the terminal end of the first conveyor (2) and the starting end of the second cosi pair (3) overlap. As shown in FIG. 1, the second conveyor 13) that transports the next kCζ1#l board 11) by adsorbing it to its lower surface is 61' The thin veneer is transferred from the first conveyor (2) to the second conveyor (31).The first conveyor 12
The terminal end of No. 1 and the start end of No. 2 Fushivere (31) overlap vertically. Both the first conveyor (21 and the second conveyor 13) have a suction chamber +6117'l, and each conveyor +
]-J pair belt 1B+ +91 of 21131 is provided with a suction port (IO) as shown in FIG. i K tj A large number of suction ports (■) for vacuuming are formed, and the conveyor belt 181191 has suction ports (10
) are drilled in large numbers. Each suction port 1111 always corresponds to one of the suction ports (lO), and the thin veneer (1) is suctioned and held on the sheave belt (81+91). Chamber 16) and second cosy pair (3) suction channel JS-11+
, the downward suction force from the suction chamber 161 of the first conveyor (2) working on the thin veneer 111&c is lost, and at the same time, the suction force from the suction chamber (71) on the second conveyor (31) is In other words, the suction force is always exerted in one of the directions below.The second conveyor is located at the position corresponding to the end of the first conveyor (21). A kite plate 14) is disposed opposite to the lower surface of the fuselage pair 13).The upper surface of the guide plate (4) is located approximately on the same plane as the upper surface of the first fuselage pair (2). At the rear end of the guide plate (41), as shown in FIG. When placing it on the guide plate (4), place the thin veneer +
11 onto the kite board (4). Projections (I4) projecting upward are formed on both side edges of the kite & (4) perpendicular to the transport direction of the thin veneer plate (4).The bottom surface of the kite plate (4) is provided with a large number of through holes (61 is sprouted, and this through hole t61
Due to heavy trade pressure, the thin veneer 11)
3) is adsorbed. As shown in FIG. 8(b), the through hole t51Fi is formed in a semi-elliptical planar shape, and the through hole (616
The leading edge is straight and the trailing edge is curved. From the front edge of the through hole (6), a tongue piece (14) that slopes downward extends toward the rear, and a thin veneer (14) that is conveyed from the rear.
) to prevent the front end from getting caught in the through hole (6). The through holes (6) are arranged so that the number of through holes (6) gradually increases in the width direction from the rear end to the front end of the guide plate (4). That is, at the rear end of the floid plate (41), the through hole il+ is formed only in the center in the width direction of the Δoid plate (41), and at the front end of the kite plate (4), the through hole il+ is formed in the widthwise center of the floid plate (41). A through hole (6) is formed over approximately the entire length of the through hole (61).
are arranged within a substantially isosceles triangular range and at substantially the same intervals within that range. The present invention will be described in detail. In the second cosi-bearer (3), the cosi-peer vent (7) is connected to the suction chania J.
9) A substantially uniform attraction force is working across the gold mine. However, the second Fushibear (3
) at the starting end of the guide plate (4) and conveyor belt (9)
The suction force that acts between the conveyor belt (9), that is, the atmospheric pressure that acts perpendicular to the surface of the conveyor belt (9), is determined by the air erosion that flows in through the through hole (5), so it is maximum around the perforation (6), and
The distance from 61 or b becomes smaller. Therefore, at the rear end of the kite plate (4), the suction force ii is maximum at the center of the width direction of the kite plate (4), and decreases toward both sides, as shown in FIG. When the thin veneer fil is sent from the first conveyor 121 onto the guide plate (4), the front end of the -veneer +110 is
The rear end of the guide plate (4) is lifted above the air flowing in from the through hole 1lSl provided in the center of the width direction of the kite plate
). As the thin veneer (11) moves forward, the flow rate of air hitting the back surface of the thin veneer increases, and the adsorbed portion gradually expands from the part that was initially adsorbed to the second Koshibear 13. The part that has passed through the guide plate (4) in this way is the second
] It is in close contact with Shibea (3). As described above, the center of the thin veneer Ill in the width direction first comes into close contact with the second conveyor 13), and as it moves forward, the suction part expands so as to be pulled toward both sides. 2nd bearing 181 and thin veneer I
This means that the air between the thin veneer and the veneer can be sucked onto the second conveyor (31) without wrinkles.Protrusions are also formed on both sides of the guide plate (4) in the width direction. This protrusion α31VC prevents air from flowing in from the sides of the kite board (4) and prevents the flow of static electricity from unnecessary directions from affecting the thin veneer Ill. As described above, in the present invention, the number of through holes formed in the kite plate that are arranged in the width direction is gradually increased from the rear along the traveling direction of the thin veneer to the front from the end.

[7. The thin veneer is sent onto the kite board and is adsorbed to the lower surface of the second conveyor at a point in the rear end of the kite board in the l] direction, and as it advances on the t3 board, it is first transferred to the vJ2 conveyor. The suction part gradually expands from the part that was suctioned to the remaining part, and the part that has passed through the thin veneer kite plate is suctioned to the lower surface of the second Koshibear over the entire surface, so the thin veneer is first held in one place. Only the thin veneer is attracted to the second conveyor, and the adsorption part to the second Fushibear is expanded around that part, so that there is no static electricity between the second Fushibear and the thin veneer, and the thin veneer is attracted to the second conveyor. It has the advantage of being adsorbed onto the two conveyors without wrinkles.゛The device shown in Fig. 5 is a device for removing dust such as sawdust adhering to the front and back surfaces of thin veneers. I), upper side] 8 of Shibea So
The thin veneer ill is transferred in this order. Both the feed conveyor (20) and the lower comparison conveyor 1) are conveyors which carry a thin veneer tll on the upper surface. Feed Fushibear■ is the lower conveyor (2
The conveyance speed is faster than in 1), and the frictional force acting between the conveyor belt of the feed conveyor and the thin veneer sheet is set to be relatively small. On the surface of the conveyor belt (24) running along the lower conveyor, a plurality of end cover pieces (c) protrude from the surface of the cosipear belt and are inclined upward in the rear direction in the feeding direction for thin veneers. The tip cover piece (c) is 0.
It is made of polyethylene terephthalate resin or the like with a thickness of about 2 fl, and has flexibility, so that it can be bent back and forth in the feeding direction with a small force. Example of a cosipair belt On the surface, behind the tip cover piece (C), when the tip cover piece □□□ swings backward, the tip cover piece 4 is stored and the brown back side of the conveyor belt is stored. A recess (E) is formed to reduce the road surface. Lower conveyor t21)
has a suction ``ft'' and is adapted to suck the thin veneer onto the upper surface of the lower veneer (21). A barrel is installed inside the neem hood (28) where suction power is always working. Inside the neem hood 28, there is an 0-55 seam that rotates in the opposite direction to the feeding direction of the thin veneer plate. The thin veneer (1) is placed on the lower conveyor +211 and passes under the neem hood Q~.
The dust on the top surface is blown away, and this dust is sucked up and removed using the neem hood (ha). A position detector (b), such as a female optical position detector, is installed between the feed conveyor (foundation) and the lower side conveyor (2I), and the position detector (b), such as a female optical position detector, is installed between the feed conveyor and the lower side. Is the state of passing between the conveyor circle and the feeding gap between the tip cover pieces? Detects the state of passing between the /bear ψ storage and the lower Koshibear (2]). In addition, the rear part of the skirt stroke υ of the bar + neem hood t2B is bent rearward and upward to form a guide piece (3z).
The starting end of the upper conveyor 12 overlaps with the terminal end of the lower conveyor 1) below E. The upper conveyor ( The surface of the conveyor belt is provided with a number of flexible tip covering pieces.These tip covering pieces Nt′i are suspended on the lower surface of the upper conveyor, and also fall down on the upper surface of the upper cosipair area. At the bottom of the upper conveyor zone, there is a suction chamber that exerts an upward suction force, and a stone that attracts the thin veneer sent from the lower Fushibear R21) to the lower surface of the upper conveyor circle. , At the position corresponding to the pulling chiseshi bar (2), a bar + neem hood ζ is arranged facing the lower surface of the upper fushi pair, and the direction is opposite to the feeding direction of the neem hood Kannai (thin veneer opening). A rotating suction brush aη is provided at the bottom of the plate.Therefore, when the thin veneer (1) passes over the top of the veneer plate (1), the bottom surface of the thin veneer (1) is rotated. Sliding contact [
7. Brush off the garbage on the lower surface of the thin veneer plate with L40-le brush (
The garbage splashed by the 3η is sucked up and removed by the neem hood. The rear edge of the skirt (c) of the neem hood is bent backward and downward to form a guide piece. When the tip cover piece passes, the tip cover piece is bent backward so that the tip cover piece can be easily introduced into the beam hood haze. A position detector such as an optical position detector is installed at the position corresponding to the end of the upper conveyor, so that the state of the thin veneer (1) passing through the end of the upper conveyor is detected. It has become. Questions will be asked about the operation of this dust removal device using Figures 6 and 7. First, the lower part of the cut 1) is the tip cover piece R269.
is stopped at a fixed position on the starting end side, and the tip of the thin veneer Ill, which is carried on top of the feed conveyor can, comes into contact with the tip cover piece 3 of the lower Fushibear 31). At this time, the position detector side detects that the thin veneer plate Ill has come into contact with the tip cover piece 6, and the lower stiffness plate Ill starts to be driven by the output from the position detector side. Feeding conveyor (
Since the feed speed of b); is faster than the feed speed of the lower conveyor 1)vI), the tip of the thin veneer 11) is always pressed against the tip cover piece t25+. In addition, since the frictional force between the conveyor belt of the feed conveyor V0 and the thin veneer (1) is relatively small, when the thin veneer 11) comes into contact with the tip-carrying single cut F11, A look at the thin veneer Ill and the feed conveyor (b)),
□□□ means that the tip can be brought into contact with the two end cover pieces without applying excessive force to the thin veneer Ill by slipping, and then as shown in Figure 6 (b). Thin veneer (1)
When passes under the hood bn, the tip cover piece (a) is pushed and bent by the rotational force of the 0-ru 5 shi wire to protect the tip of the thin veneer 11). The tip of is 0
- Prevents breakage due to rachis. Also, °
When the thin veneer opening) is placed on the tip cover piece □□□, the tip cover piece (sha) is bent backward and fits into the recess (5),
The surface of the conveyor belt 9 and the road surface - stones that are often used to form irregularities for thin veneers. In this way, dust on the top surface of the thin veneer 11) is removed. Next, Figure 7(a)
As shown in the figure, the thin board 11) is sent from the lower side to the upper conveyor □□□. Lower conveyor @1) and upper conveyor I24 have the same feed speed, and upper conveyor c2
The tip cover pieces 4) of 21 are formed to have lengths that partially overlap with each other when they are in a fallen state. Therefore, no matter where the tip of the thin veneer passes, any tip covering piece will be located within a range that can cover the tip of the thin veneer. That is, as shown in FIG. 7(b), a thin veneer (1
) when the tip passes over the neem hood (goods),
No matter where the tip of the thin veneer (1) is located on the conveyor belt, when the tip cover piece is thrown backward by the zero-end rake 61, it will always cover the tip of the thin veneer (1). This is how it is. In this way, the tip of the thin veneer 11) does not touch directly like a brush, and the tip of the thin veneer 11)
This prevents the paper from turning over or cracking due to twisting. As described above, dust on the lower surface of the thin veneer (1) is removed. When the position detector detects that the thin veneer has completely passed through the upper conveyor (2), the 1st position detector detects that the thin veneer has completely passed through the upper conveyor. When one side of the tip cover reaches the starting position of the lower conveyor 121), the lower conveyor 121) is stopped. As described above, this dust removal device removes dust from the thin veneer II+ when the tip of the thin veneer II+ comes into contact with the 0-ru brush Q9).
The tip is covered with a thin veneer (for example, a thin veneer).
It is possible to prevent the material from cracking due to excessive physical force.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing one embodiment of the present invention, FIG. 2 is a partial perspective view of the same as above, and FIGS. 8(a) and (b) are perspective views of a kite board and a guide plate used in the same. FIG. 4 is a partial sectional view of the same as above, FIG. 5 is a configuration diagram of the dust removal device, and FIGS. 6 (a) (b) and 7 (a) (b) are explanations of the operation of the above 11) is a thin veneer, (21)
(31 is the second conveyor, (4) is the beam kite board, (51 is the through hole. Agent Patent Attorney Ishi 1) Chief 7 Figure 6 (0) (b) Figure 7 (0) ) 5 (b)

Claims (1)

[Claims] The first conveyor carries the thin veneer on its upper surface and conveys it in one direction, and the second conveyor picks up the thin veneer from the first conveyor and uses the suction force applied from above to attract the thin veneer to the bottom and conveys it. 2 conveyors, and a kite board that receives the thin veneer sent from the end of the first conveyor on its upper surface and transfers this thin veneer to the bottom surface of the second conveyor, and the kite board has a thin veneer surface. A large number of through holes are formed in order to apply a large voltage to the bottom surface of the second conveyor to attract the thin veneer to the lower surface of the second conveyor. The number of holes gradually increases, and as the # veneer is sent to the kite board F and is adsorbed to the lower surface of the second Fushibear at the width direction of the front edge at the rear end of the kite board, as the kite board E moves forward. The suction part gradually expands from the part that was first attracted to the second conveyor to the remaining part, and the part that has passed through the thin veneer kite plate is attracted to the lower surface of the second conveyor over the entire surface. b Conveying device for thin veneer.