JPH0639294B2 - Deposition device for stacked veneer veneer - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

The present invention relates to a stacking veneer separating device that separates stacked veneer veneers (hereinafter referred to as veneers) one by one.

[Prior art]

Conventionally, as an apparatus for separating stacked veneers described above, as shown in, for example, Japanese Patent Laid-Open No. 49-3363, an adhesive is adhered to the upper surface of the stacked veneers at the uppermost stage and lifted upward. After separating from the veneer, a veneer separating device for picking up a single plate by adsorbing it to a suction device and taking it out is known.

[Problems to be Solved by the Invention]

However, since the deposited veneers are usually piled up in a wavy pattern in the horizontal direction, the veneer will not be attached to the veneer when the adhesive body of the above-mentioned conventional separating device is brought into contact with the veneer. On the other hand, the entire adhesive surface of the adhesive body cannot be surely adhered, and the single plate may peel off from the adhesive body during the lifting process and may not be separated.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention solves the above-mentioned problems by a mounting member, a first moving member that horizontally moves the mounting member between a stacking position and a take-out position of a veneer, and a second moving member that vertically moves the mounting member. With respect to the moving member and the mounting member, an arbitrary interval is set in a direction orthogonal to the horizontal moving direction of the mounting member,
Also, a plurality of support members that are movably supported in the vertical direction via the guide member, a restriction member that restricts the lowermost movement limit position of each support member with respect to the mounting member due to its own weight, and a lower end portion of each support member. , The adhesive tape is provided so that the adhesive surface faces downward and projects from the lower end, and the respective support members that are provided corresponding to the respective support members and are at the lowest motion limit position with respect to the mounting member are upward. A plurality of detectors for detecting the movement of the first moving member to move the mounting member in the horizontal direction so that each supporting member is positioned above the laminated veneer veneer, and When the second moving member is operationally controlled so as to move the mounting member downward, and all the detectors detect the upward movement of the respective support members with respect to the mounting member during the downward movement of the mounting member, the mounting member Move downwards by interrupting downward movement And a control device for switching and controlling the operation of the second moving member so that the mounting member is separated from the laminated veneer veneer. I am trying.

[Operation of the invention]

Since the present invention is configured as described above, the attachment member is moved to the side of the stacked veneer along with the operation of the first moving member, and each supporting member is moved to the upper side of the stacked veneer. rear,
The second moving member is activated to move the mounting member downward. At the time of this downward movement, when the adhesive tape of each supporting member whose movement is regulated at the lowermost limit position by the regulating member comes into contact with and adheres to the stacked single plate at the uppermost stage, the downward movement of each supporting member Is regulated and is moved upward with respect to the mounting member. When each detector detects the upward movement of each support member with respect to the mounting member, the control device controls the switching of the second moving member to move the mounting member upward and move each support member to the information. As a result, the uppermost veneer that is adhesively held by the adhesive tape of each supporting member is separated from other veneers and lifted upward. Also, the control device controls the switching of the first moving member to move the mounting member to the take-out position side, and separates the respective support members from the stacking position of the single plate.
The veneers thus deposited are separated and taken out one by one.

【Example】

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an outline of a deposition veneer separating apparatus 1 according to the present invention, FIG. 2 is a schematic side view of FIG. 1, and a deposition apparatus 3 is arranged on the carry-in side of the separating apparatus 1. Has been done. This stacking device 3 has a large number of veneers 7 oriented on the pedestal 5 connected to a pantograph mechanism (not shown) in which the fiber direction is taken out (indicated by solid arrows in FIGS. 1 and 2). Has been deposited. Further, the deposition device 3 is, for example, a photoelectric type level detection device (not shown) disposed on the side of the deposition device 3.
The pedestal 5 is moved up on the basis of a signal from, and the uppermost single plate 7 always deposited on the pedestal 5 is configured to substantially match the height of the level detecting device. The main body frame 9 of the separating device 1 is provided with a pair of upper and lower frames 11 facing each other with a required space. A rack gear 13 is fixed inside the upper and lower frames 11. A movable member 15 is attached to the upper and lower frames 11.
Are mounted so as to move in the vertical direction by a required distance. That is, the pinion gears 17 are rotatably supported on both sides behind the movable member 15, and each pinion gear 17 is connected to the rack gear 13. A support roller 19 is rotatably supported on both front sides of the movable member 15, and the support roller 19 is mounted so as to roll on a rail portion 11b provided on a front vertical surface of the upper and lower frames 11. . Further, the body frame 9 is provided at one end of the movable member 15.
A cylinder 21 constituting a second moving member of the invention of the present application, which is fixed to the above, is connected, and the operation of the cylinder 21 moves the movable member 15 up and down while the pinion gear 17 and the rack gear 13 mesh with each other. The movable member 15 has a single plate 7
A large number of guide rods 23 having an axis in the take-out direction are slidably supported. A fixed bar 25 is integrally fixed to the rear ends of the guide rods 23, and the fixed bar 25 is fixed to the movable member 15 according to the first aspect of the present invention.
The cylinder 27 that constitutes the moving member is connected.
A support holder 47, which constitutes a mounting member of the present invention, is fixed to the front end of each guide rod 23.
Then, along with the operation of the cylinder 27, the support holder 47
Are moved in the axial direction by a required distance. A drive roller 31 is rotatably supported between the upper and lower frames 11 at a height according to the level detecting device. An electric motor (not shown) is connected to the drive roller 31, and the drive roller 31 is rotated by the electric motor in the direction of the solid arrow shown in FIG. The upper and lower frames 1
The support shaft 33 is provided between the two above the drive roller 31.
Further, it is fixed in parallel with the axis of the drive roller 31. A lever 35 is supported at both ends of the support shaft 33 so as to be rotatable about the support shaft 33 at the center thereof. A cylinder 37 attached to the upper and lower frames 11 is connected to the rear end portion (lower side in the take-out direction) of each lever 35, and the lever 35 is rotated around the support shaft 33 in accordance with the operation of the cylinder 37. A support shaft 39 is attached to the front end of the lever 35 (adjacent to the take-out direction) in accordance with the drive roller 31, and a large number of pressing rollers 41 are rotated on the support shaft 39 at required intervals in the axial direction. Supported as possible. A release bar 43 is rotatably supported on the support shaft 39. A pressing arm 43a is integrally formed on the release bar 43 so as to extend toward the front of a guide roller 99 described later. A cylinder 45 attached to the main body frame 9 is connected to both ends of the release bar 43, and is rotated about the support shaft 39 as the cylinder 45 operates. FIG. 3 is a schematic perspective view showing the take-out member 29, and the plate 49 constituting the support member of the present invention is arranged in the take-out direction in each of the support holders 47 attached to the front end portions of the guide rods 23 described above. The rollers are supported by a support roller 51, which constitutes a guide member, at arbitrary intervals in the orthogonal direction so as to be vertically movable. Incidentally, reference numeral 49a in the drawing denotes a rail portion which is fixed to or integrally formed with the support plate 49 and guides the support roller 51 to roll. A ratchet gear 53 is rotatably supported on each support plate 49 about a shaft 55. Further, the swing lever 5 is attached to the shaft 55.
7 is rotatably supported on the side of the ratchet gear 53, and a first ratchet pawl 59 is rotatably supported on the free end of the swing lever 57. A winding spring 61 is attached between the swing lever 57 and the first ratchet pawl 59, and the pawl portion of the first ratchet pawl 59 is constantly moved by the elastic force of the winding spring 61. Is urged to mesh with. The support plate 49 is attached to the free end of the swing lever 57.
Is connected to a cylinder 63, and by the operation of the cylinder 63, the swing lever 57 is rotated clockwise about the shaft 55 at a predetermined angle to engage a first ratchet pawl 59 with a ratchet gear. 53 is rotated at a required angle. A second ratchet pawl 65 that restricts the reverse rotation of the ratchet gear 53 is rotatably supported on the support plate 49 about a shaft 67, and the second ratchet pawl 65 is wound by the coil spring 6.
Due to the elastic force of 9, the ratchet gear 53
Is urged to mesh with. A feed roller 71 is attached to the other end of the shaft 55.
Is in contact with a supporting roller 73 rotatably supported by the supporting plate 49. The support plate 49 has a take-up shaft 75 rotatably supported above the ratchet gear 53, and the take-up shaft 75 on the ratchet gear 53 side.
A pulley 77 is fixed to the shaft end of the. The pulley 77 includes a pulley 78 and a belt 7 with respect to the shaft 55.
They are connected via 9. As a result, the winding shaft 75 is rotated in the same rotation direction in synchronization with the rotation of the ratchet gear 53. Winding shaft 75 on the feed roller 71 side
A take-up spool 81 is detachably attached to the shaft end of the. A support shaft 83 is rotatably supported at the front center of the support plate 49, and a braking disc 85 is fixed to the shaft end of the support shaft 83. A swing lever 87 is rotatably supported on the support plate 49 about a shaft 89, and a brake shoe 91 is fixed to the free end of the swing lever 87. The oscillating lever 87 constantly presses the braking shoe 91 against the outer peripheral surface of the braking disc 85 with a required pressure by the elastic force of the mounted winding spring 93. A tape reel 97 around which an adhesive tape 95 is wound is detachably attached to the shaft end of the support shaft 83 on the side of the feed roller 71. A guide roller 99 is rotatably supported on the lower end of the support plate 49 on the side of the feed roller 71. The adhesive tape 95 fed from the tape reel 97 passes through the guide roller 99, the feed roller 71 and the support roller 73, and the single plate 7
It is stretched so as to be wound in a state in which a required tension is applied in the fiber direction. And the guide roller 99
The adhesive surface of the adhesive tape 95, which is supported by, is directed downward and projects downward from the lower end of the support plate 49. A stopper 101, which constitutes a regulating member of the present invention, is fixed to the upper part of each support plate 49 so as to be able to contact the upper surface of the support holder 47, and the stopper 101 is lower than the support holder 47 by its own weight. Contacting the upper surface of the support holder 47 when moving to the support plate 4
The lowermost limit position of 9 is regulated. A detector LS ¹ is attached to the take-out side of the movable member 15, and when the take-out member 29 is positioned above the veneer 7 on which the take-out members 29 are deposited by the operation of the cylinder 27, the fixed bar 25 contacts the detector LS ^1. In contact, the detector LS ¹ is activated.
Then, the control device 103 stops the operation of the cylinder 27 and operates the cylinder 21 downward based on the electric signal from the detector LS ¹ . Each of the stoppers 101 is attached with a detector LS ² which constitutes the detector of the present invention, and is normally a stopper 101 for the support holder 47.
The contact of the detector causes the detector LS ^{2 to} be in the ON state. When each take-out member 29 is moved downward by the operation of the cylinder 21 and the guide roller 99 is brought into contact with the single plate 7 located at the uppermost stage, the downward movement of the support plate 49 is restricted, and the downward movement of the support holder 47. Since the movement is continued, the support plate 49 moves upward with respect to the support holder 47, the stopper 101 is separated from the support holder 47, and the detector LS is moved.
² is turned off. The control device 103 stops the downward movement of the cylinder 21 based on the fact that the electric signals output from all the detectors LS ² are in the OFF state, and then operates the upward movement to move the movable member 15 and hence the respective take-out members 29.
Move up. A detector LS ³ is attached to the upper and lower frames 11 according to the upper limit position of each take-out member 29. The detector LS ³ is activated when each take-out member 29 located above the single plate 7 accumulated by the operation of the cylinder 21 in the upward direction reaches its upper limit position.
Then, the control device 103 stops the operation of the cylinder 21 and operates the cylinder 27 in the opposite direction based on the electric signal from the detector LS ³ to move the support holder 47, and hence each take-out member 29 to the take-out position. Move to the side. A reflection type photocell LS ⁴ is attached to the lower side of the drive roller 31 in the take-out direction with respect to the axis thereof. When the take-out member 29 is moved to the take-out position side by the operation of the cylinder 27 and the front end of the single plate 7 held by the adhesive tape 95 of the take-out member 29 reaches below the photo-tube LS ⁴ , the photo-tube LS. ⁴ is activated. And the control device 1
03 stops the operation of the cylinder 27 and operates the cylinder 45 downward based on the electric signal from the photocell LS ⁴ . A detector LS ⁵ is attached to the cylinder 45. An electric signal from the photocell LS ⁴ causes the cylinder 45 to move downward to operate the release bar 43.
The detector activates the detector LS ⁵ when is rotated about the support shaft 39 by a required angle sufficient to release the adhesive holding state of the single plate 7 by the adhesive tape 95. Then, the control device 103 stops the operation of the cylinder 45 based on the electric signal from the detector LS ⁵ and causes the cylinder 3 to operate.
7 is operated. Next, the operation of the separation device 1 configured as described above will be described below.
This will be described with reference to the drawings and FIGS. 4 to 7. 2, FIG. 4 showing a state of taking out the veneer 7 by the take-out member 29, FIG. 5 showing a state of moving the veneer 7, and a release bar 43.
In FIG. 6 showing the adhesion release action of the veneer 7 by FIG. 7 and FIG. 7 showing the transporting state of the veneer 7, when the cylinder 27 is operated while the movable member 15 is moved upward by the operation of the cylinder 21, each support is supported. With the movement of the holder 47, each take-out member 29 horizontally moves toward the deposition device 3 and is positioned above the front end side in the transport direction of the single plate 7 deposited on the pedestal 5. When the detector LS ¹ detects that the take-out member 29 has moved above the accumulated single plate 7, the detector L
The control device 103 moves the cylinder 21 downward based on the electric signal from S ¹ . As a result, each take-out member 29 moves downward and the adhesive tape 95 supported by the guide roller 99 is stacked on the pedestal 5.
The veneer 7 is adhered by pressure contact with the upper surface. At this time, the downward movement of the support plate 49 with respect to the support holder 47 is stopped due to the contact of the coil spring 93 with the single plate 7, but the downward movement of each support holder 47 is continued, so that the support holder 4
7, the support plate 49 moves upward, the support holder 47 moves away from the stopper 101, and the detector LS ² is turned on.
Operate FF. When all the detectors LS ² are turned off by this operation, the control device 103 controls switching based on the electric signal so as to stop the movable operation of the cylinder 21 and then move the cylinder 21 upward. . As a result, the single plate 7 adhesively held by the adhesive tape 95 is lifted upward while being separated from the other single plates 7 deposited on the pedestal 5 in a cantilever state. Then, as the cylinder 21 moves, the respective take-out members 29 holding the veneer 7 adhesively move upward to the required positions to move the detector LS.
³ , the control device 103 stops the operation of the cylinder 21 based on the electric signal from the detector LS ³ and operates the cylinder 27 in the direction opposite to the above operation as shown in FIG. . As a result, the veneer 7 separated from the other veneers 7 is moved so that the front end portion in the fiber direction is located between the drive roller 31, the pressing roller 41 and the release bar 43. When the front end of the single plate 7 passes below the phototube LS ⁴ , the phototube LS ⁴ detects the front end of the single plate 7 and outputs an electric signal, and the control device 103 detects the electric signal of the phototube LS ⁴ based on the electric signal. The operation of the cylinder 27 is stopped and the cylinder 45 is moved downward. At this time, the cylinder 37
Since the support shaft 39 is still held in the fixed position by the, the release bar 43 rotates counterclockwise around the support shaft 39 as shown in FIG. The adhesive holding state of the plate 7 is released. On the other hand, the cylinder 45 is a single plate 7 using an adhesive tape 95.
The detector LS ⁵ emits an electric signal when fully operated until the holding state of the cylinder is released, and the control device 103 stops the operation of the cylinder 45 in the downward direction based on the electric signal from the detector LS ^5. At the same time, the cylinder 37 is moved upward. Then, as shown in FIG. 7, the lever 35 rotates counterclockwise around the support shaft 33, and the pressing roller 41 descends to drive the driving roller 31 that rotationally drives the single plate 7 from which the adhesive holding is released. Press it. The single plate 7 sandwiched by the drive roller 31 and the pressing roller 41 is conveyed in the fiber direction as the drive roller 31 rotates. The cylinder 37
Is operated upward, the support shaft 43 of the release bar 43
Since b is still held in a fixed position by the cylinder 45, the release bar 43 rotates clockwise around the support shaft 43b, and interference of the release bar 43 with the single plate 7 is avoided. The adhesive tape 95 from which the adhesive holding of the single plate 7 is released is wound on the winding spool 81 with a required length after the above operation. That is, when the cylinder 63 is operated, the first ratchet pawl 59 meshing with the ratchet gear 53 moves the shaft 55.
Rotates around the cylinder 63 according to the stroke of the cylinder 63,
The shaft 55 is rotated at a required angle. As a result, the feed roller 71 supporting the adhesive tape 95 is
Is rotated at the required angle in the feed direction of. Also, the shaft 55
Is applied to the support shaft 83 via the belt 79,
Since the take-up spool 81 is rotated at a required angle, the adhesive tape 95 is taken up by the take-up spool 81 in a direction corresponding to the fibers of the single plate 7 with a required length. When the cylinder 63 is reversely operated after the adhesive tape 95 is wound, the second ratchet pawl 65 meshes with the ratchet gear 53, so that the first ratchet pawl 59 does not rotate the ratchet gear 53. It is moved back to the original position while loading each tooth in a regulated state. Further, since the braking shoe 91 is pressed against the braking disk 85 by a force corresponding to the elastic force of the winding spring 93, when the adhesive tape 95 is wound on the take-up spool 81, the adhesive tape 95.
The required tension is applied to. As described above, in the present embodiment, the veneers 7 stacked on the pedestal 5 by the adhesive tape 95 that is sequentially wound with the take-out operation.
After the sheets are taken out one by one, the release bar 43 releases the adhesive holding of the single plate 7 by the adhesive tape 95, and the single plate 7 can be conveyed in the fiber direction by the driving roller 31 and the pressing roller 41. . In the above description, the front end of the veneer 7 in the fiber direction is adhesively held by the adhesive tape 95, and the veneers 7 are taken out one by one from the gantry 5 in the fiber direction. The single plate 7 may be taken out in the fiber orthogonal direction by holding the front end of the adhesively. Also, the uppermost single plate 7 deposited on the pedestal 5 is directly adhered and held by the adhesive tape 95.
An air ejecting device is provided in accordance with a portion of the veneer 7 where the adhesive is held, and when adhering the adhesive tape 95 to the veneer 7, the air discharged from the air ejecting device removes wood chips and the like attached to the adhesive holding place. By doing so, the adhesive holding action of the single plate 7 by the adhesive tape 95 may be stabilized. In the above description, the adhesive tape 95 stretched between the tape reel 97, the guide roller 99 and the take-up spool 81.
Was wound in a direction that coincides with the fibers of the veneer 7 having fibers in the take-out direction. As shown in FIG. 8, the adhesive tape 95 is sequentially wound in a direction orthogonal to the fiber direction of the veneer 7. It may be one. That is, when the adhesive tape 95 is wound in the fiber direction of the single plate 7 as in this embodiment, the single plate 7
When the adhesive holding to the
May have long fibers peeled from the veneer 7, but since these fibers are oriented in the winding direction, when the adhesive tape 95 is slightly wound in a direction coinciding with the fibers of the veneer 7, Next, when the veneer 7 was adhered and held, some of the fibers were located on the adhesive surface of the adhesive tape 95, so the adhesive action was reduced and the deposited veneer 7 could not be reliably separated. However, when the adhesive tape 95 is wound in the direction orthogonal to the fiber direction of the veneer 7, even if the fiber is attached to the adhesive tape 95, the fiber of the veneer 7 is attached by slightly winding the adhesive tape 95. The adhesive surface of the adhesive tape 95 that is not attached can be made to face the upper surface of the veneer 7, and the deposited veneer 7 can be stably taken out. In the modified embodiment shown in FIG. 8, the release bar 43 is provided closer to the take-out direction of the veneer 7 than in the present example, and the release bar 43 is rotated when the holding of the veneer 7 by the adhesive tape 95 is released. The contact between 43 and the take-out member 29 is avoided. Also,
Since other configurations are similar to those of the present embodiment, detailed description thereof will be omitted. In the above description, the release bar 43 is provided on the body frame 9 side, but the release bar 111 may be provided on the take-out member 29. That is, as shown in FIG. 9, the support shaft 1 of the guide roller 99 attached to the support plate 49
13, the release bar 111 longer than the radius of the guide roller 99 is rotatably supported, and the cylinder 11 attached to the support plate 49 is attached to the tip of the release bar 111.
Connect 5 Then, by operating the cylinder 115, the release bar 111 is rotated at a required angle in the clockwise direction shown in FIG. 9, and the single plate 7 is pressed downward to hold the single plate 7 by the adhesive tape 95. It has been canceled. The operation of the cylinder 115 may be performed by an electric signal from the photocell LS ⁴ as in the case of the above-described embodiment.

【The invention's effect】

As described above, according to the present invention, since the adhesive tape of each supporting member can be adhered to the upper surface of the deposited veneer, the veneer can be reliably secured even when the veneers are stacked so as to have undulations. It can be adhered to and separated from other veneers.

[Brief description of drawings]

FIG. 1 is a perspective view showing an outline of an apparatus for separating stacked veneers according to the present invention, FIG. 2 is a schematic side view of FIG. 1, and FIG. 3 is a schematic perspective view showing a supporting member. Is an explanatory view showing a state where the veneer is taken out by the support member, FIG. 5 is an explanatory view showing a state where the veneer is moving, FIG. 6 is an explanatory view showing a state where the veneer is released from adhesion, and FIG. FIGS. 8 and 9 are explanatory views showing a carrying state, and are explanatory views showing a modified embodiment of the present invention. In the drawing, 1 is a separating device for stacked veneers, 7 is a veneer, 21 is a cylinder as a second moving member, 27 is a cylinder as a first moving member, 47 is a support holder as a mounting member,
Reference numeral 49 is a support plate as a support member, 95 is an adhesive tape, 101 is a stopper as a regulating member, 103 is a control device, and LS ² is a detector.

Claims (1)

[Claims] 1. A mounting member, a first moving member that horizontally moves the mounting member between a stacking position and a take-out position of the veneer veneer, and a second moving member that vertically moves the mounting member. A plurality of support members that are supported by the mounting member at arbitrary intervals in a direction orthogonal to the horizontal movement direction of the mounting member, and are movably supported in the vertical direction via guide members, and each support for the mounting member. A regulation member that regulates the lowermost movement limit position due to the weight of the member, an adhesive tape provided on the lower end portion of each support member so that the adhesive surface faces downward and projects from the lower end, and corresponding to each support member Multiple detectors that are installed in the lowermost motion limit position with respect to the mounting member and detect that each supporting member has moved upward, and the mounting member is moved horizontally to accumulate each supporting member. Veneer veneer Operatively controlling the first moving member to be positioned above and the second moving member to move the mounting member downward, all detectors during the downward movement of the mounting member, When the upward movement of each support member with respect to the mounting member is detected, the operation of the second moving member is switched and controlled so that the downward movement of the mounting member is interrupted and the mounting member is moved upward.
And a control device for switching and controlling the operation of the first moving member so that the mounting member is separated from the stacked veneer veneer, and a separating device for the stacked veneer veneer.