JP2782433B2 - Automatic and continuous laminating method of paper on plywood and laminator for it - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for automatically and continuously attaching paper to a plywood plate and a laminator therefor.

[0002]

2. Description of the Related Art A commercially available flooring is a typical example of a veneer laminated veneer obtained by bonding a thin veneer veneer utilizing the aesthetic effect of natural heather to the surface of a base plate veneer through a paper sheet. However, a method as shown in FIG. 27 is employed for automatically and continuously attaching paper to the surface of the base plate plywood.

[0003] That is, the base plate plywood (1) is made of the fiber (heat treatment).
In the process of longitudinal feeding along the direction (y-y), the undercoating adhesive (3) is applied to the surface by the roll coater (2), and the fiber direction (zz) of the paper (4) is also the same as that of the base. Rolled out along the vertical direction parallel to that of the board plywood (1), and rolled to the surface of the board plywood (1)
Alternatively, they are bonded and integrated by a flat plate press.

In addition, at this time, the undercoat adhesive (3)
If the amount of the coating is too large, this may penetrate the paper (4) and penetrate upward when the paper (4) is pasted and pressed, thereby contaminating the surface of the pressure roll (5) or the flat plate press. Therefore, it is customary to specify a smaller application amount.

[0005]

However, the base plate plywood (1) and the paper (4) adhered by such a method.
Is the fiber direction (y-
y) (z-z) Since they are in a parallel conforming state, the fiber direction (y-y) (z-z) due to a change in humidity over time during use as a product-decorative plywood (M). ), The surface of the decorative veneer (6) tends to crack.

Further, since the undercoat adhesive (3) to be applied to the base plate plywood (1) must be specified to be small, the surface of the paper (4) is to be adhered to the veneer veneer (6) later. The top coat adhesive (7) applied to the surface of the veneer veneer (6) also has to be specified so that it does not seep into the surface of the veneer veneer (6). In the meantime, the intermediate portion (4a) of the paper (4) remains in a base paper state not impregnated with the adhesives (3) and (7), and as a result, the paper (4) also changes due to humidity change during use. May repeatedly expand and contract, and delamination may occur from the intermediate portion (4a) in the base paper state, and the durability of the product-decorative laminated plywood (M) cannot be secured.

[0007] In short, the above-mentioned conventional paper sticking method and its laminator are used for general printed plywood for bonding and integrating printed decorative paper such as wood grain pattern onto the surface of a plywood substrate. However, it cannot be applied to the production of decorative plywood.

[0008]

SUMMARY OF THE INVENTION The present invention is intended to solve such a problem, and as an automatic continuous paper bonding method for a base plate plywood, which is useful for this purpose, an adhesive is preliminarily applied. Only when it comes into contact with the surface of the base plate plywood that is being rolled, the roll paper is fed out and rotated from the leading end side, the fixed pressure rolls facing the base plate plywood from above, and the fixed pressure rolls. To be able to squeeze the base plate plywood,
A movable rolling roller that is moved up and down from below is mounted on a parallel horizontal state,

The base plate plywood is successively pushed between the upper and lower sides of the two compaction rolls in a relationship in which the fiber direction of the front veneer crosses the fiber direction of the roll paper.
Attaching the roll paper to the surface of the plywood in a coated state,

[0010] At the contact point between the movable compaction roll and the fixed compaction roll which are raised each time the roll is pushed, the roll paper is sequentially adhered to the surface of the base plate plywood and integrated.

The preceding plate plywood sent out from the contact point of the two compaction rolls is temporarily received during the feeding movement, and is continuously adhered over the preceding plate plywood and the succeeding plate plywood. The roll paper that has been attached is characterized in that it is cut at the boundary between the preceding board plywood and the succeeding board plywood,

[0012] Further, as a laminator used for carrying out the above method, a fixed pressure roller rolled so as to face the transport line of the base plate plywood from above due to its constitution;

A movable rolling roll capable of holding the plywood together with the fixed rolling roll by automatically intermittently raising and lowering each of the base plywoods from below;

A pusher which is automatically and intermittently advanced and retracted so as to sequentially push the plywood between the upper and lower sides of the two compaction rolls;

A roll paper which is fed out and rotated from the leading end side only after the surface of the base plate plywood pressed by the pusher is brought into contact with the coated state from above, and

First and second belt conveyors which are driven to rotate synchronously with each other in a series arrangement in which a plywood plate is sent out from the contact points of the two compaction rolls;

A roll paper cutting blade plate which is automatically and intermittently moved up and down from above so as to cut off the belt conveyors from each other;

A stop stopper for a plywood base plate, which is automatically intermittently moved up and down from below so as to be able to shut off a feeding movement path by the second belt conveyor;

The distance between the contact point of the two pressure rollers and the cutting position of the roll paper by the cutting blade plate and the distance between the cutting position and the receiving position of the base plate plywood by the stopper are all determined by the base plate. determined substantially not equal <br/> dimensions constant width of plywood,

The base plate plywood having the surface coated with the adhesive in advance is pressed by the above-mentioned pusher under the condition that the fiber direction of the front veneer crosses the fiber direction of the roll paper. And press the roll paper onto the surface of the plywood in a coated state,

At the point of contact between the movable compaction roll, which is raised each time it is pushed in, and the fixed compaction roll, the roll paper is sequentially adhered to the surface of the base plate plywood and integrated.

From the contact points of the two compaction rolls, the first, second
The preceding bedboard plywood sent out by the belt conveyor,
Once received by a receiving stopper that is raised to shut off the delivery movement path,

The preceding plywood plywood and the following plywood plywood
Roll paper that is continuously affixed over
The cutting blade plate is lowered actuated to block between each other in the first and second belt conveyor, the related set to cut at the boundary between the base plate plywood trailing and the base plate plywood its predecessor It is characterized by the following.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 show a schematic whole of a laminator for decorative laminated plywood, which has a fixed length as a base material thereof. On a line for automatically and intermittently transporting a base plate plywood (10) having a width (L1) and a width (W1), a base plate plywood (10) for sequentially and continuously attaching roll paper (11) to the surface thereof. Feeding device (A), a paper pasting device (B) adjacent to the lateral side thereof, and a feeding device (C) for a base plate plywood (10) further laterally adjacent to the paper pasting device (B). And a paper cutting device (D) facing from above between the paper pasting device (B) and the feeding device (C).

FIGS. 3 to 5 show the plywood plate (1) at a position corresponding to each of the devices (A), (B) and (C) of the laminator.
0), but when it is fed to the feeding device (A) by an auto feeder (not shown), the veneer (10a) that forms the base plate plywood (10)
As shown in FIG. 3, the fiber (heat treatment) direction (yy) is set to be the same as the longitudinal direction (Y) by the feeding device (A), and the surface thereof has a roll coater ( The undercoat adhesive (12) of the synthetic resin is applied in advance through a method such as illustrated (not shown).

FIG. 4 shows the base plate plywood (10) and the roll paper (1) in the paper pasting process in the paper pasting apparatus (B).
1) shows the relation with the base plate plywood (10).
Is pushed and moved from the feeding device (A) in the lateral direction (X1) where the paper pasting device (B) is present, so that the fiber direction (yy) of the front veneer (10a) is changed to the roll paper ( It crosses the fiber direction (xx) of 11).

In this case, unlike the conventional decorative paper for printed plywood described above, the roll paper (11) is impregnated with Japanese paper, non-woven fabric, or another synthetic resin-based primer (12) to impregnate the roll paper (11). These are papers that can be used as synthetic resin adhesive films that are unnaturally integrated. Therefore, the undercoat adhesive (12) that has leached from the surface easily adheres to and stains the surface of the fixed compaction roll described later, and there is a technical reason and necessity to provide a cleaning device in order to prevent the contamination. Details will be described later.

Then, the fiber direction (xx) (y-
y) The base plate plywood (10) on which the roll paper (11) is pasted in the cross state of the comrades is then attached to the paper pasting device (B)
Through the delivery device (C) and in the lateral direction (X2) (X
In the process, the roll paper (11) is cut at the boundary (seam) between the preceding board plywood (10) sent out and the succeeding board plywood (10). The device (D) cuts itself into a single-wafer form corresponding to the size of the plywood (10), resulting in a finish as shown in FIG.

The specific configuration of each of the above devices (A), (B), (C), and (D) will be described in detail in accordance with such an operation sequence.
It is as follows.

That is, first, in FIG. 6 to FIG. 8 in which the feeding device (A) for the base plate plywood (10) is extracted and shown, (1)
Reference numeral 3) denotes a feeding device frame which is three-dimensionally formed from steel material at a certain height, and has a rectangular shape elongated in the vertical direction (Y) in plan view, which is larger than one of the plywood plates (10).

(14) is the feeder frame (1)
3) a plurality of horizontal roller conveyors which are mounted on the upper surface of the roller conveyor in a transverse state in a transverse state, and the plywood (10) is sequentially fed along the vertical direction (Y) to the roller conveyor (14). Come. (15) is a front receiving stopper for the vertically fed base plate plywood (10), which is raised from the upper surface of the feeder frame (13) to be higher than the plane of action of the roller conveyor (14). It is laid down.

The front stopper (15)
Is composed of an L-shaped plate piece in a side view, and is attached and fixed to the upper surface of the feeding device frame (13) by a pair of left and right bolts (16). (17) is each bolt (1
The receiving adjustment slot 6) is elongated in the front-rear direction, so that the mounting position of the stopper (15) can be adjusted.

(18) is the roller conveyor (1).
In the lower position of 4), the pusher has a certain length and extends in a longitudinal direction perpendicular to the front stopper stopper (15).
A pair of locking claws (19) for locking to one side surface of (0) is integrally provided upright.

(20) is a connecting piece fixed to the intermediate portion of the pusher (18) from below, and (21) and (22) are a piston rod fastened to the connecting piece (20) and an air cylinder for moving the piston forward and backward. And as a whole, the feeder frame (13) is suspended. (23) is a trunnion for absorbing the distortion during the forward / backward operation.

Further, (24) is a piston rod (21)
Are a pair of front and rear guide shafts fixedly and horizontally mounted in parallel with the pair of front and rear, and a pair of front and rear bearing metal (25) fitted with these guide shafts.
8) is stably supported.

Then, the plywood (1) vertically fed to the feeding device (A) by an auto feeder (not shown).
0) is received by the front receiving stopper (15), the position is detected by the first sensor (26), and the air cylinder (22) which receives an electric signal from the stopper detects the position of the base plate plywood (22). A pusher (18) provided with a pair of front and rear locking claws (19) for locking with one side surface of (10) is advanced in the lateral direction (X1), and the base plate plywood (10) is pasted on paper. It is designed to be pushed into the device (B). The pusher (18) is automatically and intermittently advanced and retracted for each of the plywood plates (10).

(S) indicates the forward / backward operation stroke, but the lateral direction (X) is determined by the pusher (18).
The leading end (the remaining one side surface) of the base plate plywood (10) pushed into 1) reaches a contact point between a later-described movable compaction roll and a fixed compaction roll forming the paper pasting device (B). Will be.

Next, regarding the paper sticking apparatus (B) to the base plate plywood (10), FIG.
9 to 20, (27) is a paper pasting apparatus frame which is also framed from a steel material into a vertically elongated rectangle in a plan view, which is considerably higher than the feeding apparatus frame (13). And it is connected and integrated in parallel with the side of the feeding device frame (13).

(28) is vertically extended to a bias position (position shifted to the left side in FIG. 1) adjacent to the feeding device (A) in the frame of the paper sticking device frame (27). A horizontal movable roller, the surface of which is made of an elastic material such as rubber or synthetic resin, and receives the base plate plywood (10) pushed by the pusher (18) of the feeding device (A). , And elastically presses from below.

(29) a pair of front and rear bearing metals which serve as a rotating shaft (30) of the movable compaction roll (28);
(31) is a pair of front and rear air cylinders for raising and lowering the pressure roller (28). The upper ends of the piston rods (32) are integrally connected to the bearing metal (29).

An input sprocket (33) is fitted to one end of the rotary support shaft (30) and integrated therewith, and (34) is a geared motor with a clutch brake for rotating and driving a movable rolling roller (28). The output sprocket (35) is supported so as to face the input sprocket (33) and at a height position that halves the lifting / lowering operation stroke of the pressure roller (28).

An endless transmission chain (36) is wound between the input sprocket (33) on the rotating shaft (30) and the output sprocket (35) of the geared motor (34). Therefore, even though the movable rolling roller (28) is moved up and down by the air cylinder (31), the rotational driving force from the geared motor (34) is constantly applied to the rolling roller (28) without loss. Can be transmitted to

(37) is the feeder frame (1)
3) a horizontal guide bar that is also mounted longitudinally in the frame of the paper pasting device frame (27) so as to be interposed between adjacent left and right sides of the movable compaction roll (28).
Reference numeral (38) denotes an adjustment slot for receiving a pair of front and rear mounting bolts (39).
7) The mounting height can be adjusted. As is apparent from FIG. 7, the lower surface of the base plate plywood (10) pushed in along the lateral direction (X1) by the pusher (18) of the feeding device (A) is moved to the guide bar (37).
And smoothly guided to the movable rolling roll (28).

Reference numeral (40) denotes a second sensor for detecting the position of the board plywood (10) which has reached the end point of pushing in the lateral direction (X1). In order to retreat the pusher (18) in the return direction, the air cylinder (22) is controlled.

(41) is a position adjacent to the movable rolling roller (28) opposite to the guide bar (37) in the frame of the paper pasting device frame (27) (position shifted to the right side in FIG. 1). ), A horizontal guide plate (42) arranged in a transverse state is a pair of left and right support pillows, and is fixed in a longitudinal state to a middle height position of the paper pasting device frame (27).

Reference numeral (43) denotes an endless first belt conveyor for continuously feeding the base plate plywood (10) in the horizontal direction (X2), and comprises a driving pulley (44) and a driven pulley (4).
5), and the lower surface thereof is supported by the guide plate (41). (4
Reference numeral 6) denotes an inverter-driven geared motor for driving the first belt conveyor (43) to rotate, and is connected to a driving pulley (44) via a transmission belt (47).

(48) is the first belt conveyor (4)
The third sensor for detecting the position of the plywood (10) in the process of traversing in the step (3) works only on the first one of the plywood (10) at the beginning of the operation, and the movable rolling roller (28) is lowered and returned.

Reference numeral (49) denotes a pair of opposed front and rear support masts, which are also vertically suspended from the upper surface of the paper pasting device frame (27), and each has a central portion for receiving a rotary support shaft as shown in FIG. The notch (50) is cut out. Reference numeral (51) denotes a horizontal roll paper rotation shaft which is longitudinally cut between the support masts (49), and has a front end portion and a halfway portion in the recesses (50) of the support masts (49). In a state of being freely dropped and inserted from above, it is supported by a pair of left and right idle rollers (52) from below.

A top cover (53) is rotatably mounted on a support mast (49) via a horizontal pivot pin (54) so as to open and close the entrance of each recess (50). An idle roller (55) attached thereto is in contact with the upper surface of the roll paper rotation support shaft (51). (5
6) are fixing bolts for the top cover (53).

As is apparent from FIG. 13, the roll paper (11) mentioned above is fitted on the roll paper rotation support shaft (51), and the band width (W2) of the roll paper (11) is set to the base plate plywood (10). ) Are set to have substantially the same dimensions as the length (L1). Reference numeral (57) denotes a pair of front and rear conical pieces press-fitted between the core tube (58) of the roll paper (11) and the roll paper rotation support shaft (51). ) Is held so as to be able to rotate integrally with the rotation support shaft (51). (5
Reference numeral 9) denotes a mounting bush for each conical piece (57), and reference numeral (60) denotes a pressing bolt for the rotary support shaft (51).

(61) is the roll paper rotation support shaft (5).
1) An integrated brake drum fitted to the rear end,
Reference numeral (62) denotes the brake shoe, and a lower end of an inverted U-shaped steel strip (63) wound around the brake shoe (65) is integrally suspended from a cylinder mount (64).
And the steel strip (63)
Is connected to and integrated with the upper end of a piston rod (67) which is raised and lowered by an air cylinder (66). The cylinder mount (64) is attached and fixed at a mid-height position of the paper pasting device frame (27).

The lowering force of the piston rod (67) causes the rotation shaft (5) of the roll paper (11) to rotate.
1) is braking. In other words, only when the roll paper (11) does not idle at all times and a forcible pulling force is applied from the leading end side of the roll paper (when receiving the pushing force of the plywood), FIG. Arrows 14 and 15 (F)
In other words, it is gradually fed out in the direction. The braking force can also be adjusted strongly by the air cylinder (66).

However, instead of the above-mentioned band brake type, as shown in a modified example of FIG. 16 corresponding to FIG. 13, the roll paper rotating support shaft (51) is fitted and integrated with the rear end. The large-diameter transmission gear (61a) and the mounting table (6
4a) The output gear (67a) of the powder brake (66a) installed above meshes with and rotates, and the detection object (62a) attached to the transmission gear (61a) is detected by the proximity switch (63a). , The rotating spindle (5
It is preferable that the braking force applied to 1) is always kept constant in accordance with the change in thickness accompanying the feeding of the roll paper (11).

(68) is a vertical state parallel to the rotation shaft (51) of the roll paper (11), and is a horizontal first shaft also suspended on the upper surface of the paper pasting device frame (27).
A wrinkle removing roll, (69) is a second wrinkle removing roll also suspended in parallel at the middle position of the paper pasting device frame (27), and (70) is a first and second wrinkle removing rolls (68), (6).
9) guide rolls suspended parallel to each other between the upper and lower sides, and the leading end side of the roll paper (11) that has been subjected to the bypass guide action of the rolls (68), (69), and (70) group is the platform. Upon receiving the pushing force of the plate plywood (10), it is introduced into the contact point between the movable compaction roll (28) and the fixed compaction roll described below.

Further, (71) is the feeding device (A)
The plywood (10) pressed by the pusher (18) can be pinched together with the movable pressure roll (28) so that the plywood (10) is positioned directly above the pressure roll (28). 9 to 12 are horizontal fixed compaction rolls suspended in a longitudinal state as shown in FIGS. 9 to 12, and the movable compaction rolls (28) are moved up and down, while the fixed compaction rolls (71). Is fixedly mounted in the frame of the paper pasting device frame (27). Reference numeral (72) denotes a pair of bearing metals for supporting the front and rear ends of the rotary support shaft (73) in the fixed compaction roll (71).

Further, the working circumferential surface of the movable compaction roll (28) is made of an elastic material such as rubber or synthetic resin, thereby applying a push-up elastic pressure to the lower surface of the base plate plywood (10). On the contrary, this fixed compaction roll (7
The working circumferential surface of 1) is made of a metal material and is finished to a smooth mirror surface.

In this way, the movable rolling roll (2)
8) While firmly supporting the upper surface of the plywood plate (10) while resisting the upward pressure, the plywood plate (10) is moved up and down between the movable compaction roll (28) and the fixed compaction roll (71). Pressure is applied to each other so as to continuously feed the pusher (18) in the lateral direction (X2), and the adhesive (1)
The smooth mirror surface prevents the 2) from adhering to the working circumferential surface of the fixed compaction roll (71), and the roll paper (11) slides along the smooth mirror surface to prevent wrinkling and breakage. It has become.

(74) is a large-diameter input sprocket which is fitted to and integrated with the front end of the rotating shaft (73) of the fixed compaction roll (71), and (75) is above the input sprocket (74). In this position, a motor mount is attached to and supported by the paper pasting device frame (27), and a geared motor (76) for rotating and driving the fixed compaction roll (71) is mounted on the motor mount.

Further, the motor mounting base (75) is moved and adjusted along the left and right sides to the paper pasting apparatus frame (27) through a pair of front and rear bolts (77) and its receiving adjustment slot (78). It is installed freely so that the first and second transmission chains to be described later can be engaged and disengaged and tensioned. (79) is a small output sprocket of the geared motor (76).

(80) is the motor mount (7)
5) A fixed-compacting roll-shifting cam clutch mounted adjacently to the geared motor (76) in parallel with the large-diameter first transmission sprocket (82) on the cam shaft (81) and the geared motor. An endless first transmission chain (83) is wound around the left and right sides of the output sprocket (79) of the motor (76), while the second transmission sprocket is also small in diameter on the cam shaft (81). (84)
And a rotating shaft (7) in the fixed compaction roll (71).
3) Between the upper and lower portions of the upper input sprocket (74), another endless second transmission chain (85) is wound.

The reason for the interposition of the cam clutch (80) is that the fixed compaction roll (71) is rotated at a relatively low speed relatively slower than the movable compaction roll (28), and the adhesive (1) is rotated.
A cleaning device (E) including a scraping blade plate, a vibrator, a cleaning liquid storage tank, and the like, which will be described later 2), ensures that the working circumferential surface of the cleaning device (E) can be reliably cleaned, while the movable rolling compaction roller (28) that has been raised is operated. During the paper adhering operation of sandwiching the base plate plywood (10) between the upper and lower sides of the base plate plywood (10), the speed is increased so that the fixed compaction roll (71) is rotated at a constant speed with the movable compaction roll (28). By the roll paper (11)
In order to prevent wrinkles and breakage. The fixed compaction roll (71), which is kept free in the direction of rotation, is automatically intermittently the same as the movable compaction roll (28) each time the movable compaction roll (28) is raised. It is designed to rotate at high speed.

As is apparent from FIGS. 17 to 20, the cleaning device (E) is attached and supported so as to face the working circumferential surface of the fixed compaction roll (71).

That is, reference numeral (8) in FIGS.
6) a fixed spacer (87) attached to the paper pasting device frame (27) at an intermediate height position in a non-interfering state surrounding the rotating support shaft (73) of the fixed pressure roller (71); ) Is a support plate that hangs from each of the fixed spacers (86), and the lower end thereof is a bolt (88).
Is joined and integrated with the fixed spacer (86).

Reference numeral (89) denotes a horizontal square axis which is vertically cut parallel to the obliquely upward position of the fixed compaction roll (71), and only the front and rear ends thereof are round shaft portions (90), and the support plate (87) is formed. ) Bearings (9
According to 1), it is supported in a pivotal state. (92) is a segment case of each bearing (91),
They are assembled and integrated via bolts (93).

Reference numeral (94) denotes an adhesive scraping blade plate which is sandwiched between the pressing lower bar (95) and the fixing screw (96) on the flat lower surface of the square shaft (89). The fixed rolling roller (7) whose sharp edge portion is made of the above metal material
It protrudes toward the working circumferential surface of 1).

Needless to say, the scraping blade plate (94) extends the same length as or slightly longer than the length of the fixed compaction roll (71), and the working circumference of the compaction roll (71). The projecting halfway toward the surface is in a restricted state where it is pressed from above by a plurality of stop bolts (97) scattered at a constant interval.

In addition, each stop bolt (97)
Is screwed into a mounting block (98) attached and fixed to the side surface of the above-mentioned square shaft (89) so as to be able to perform forward and backward adjustment operations from above. (99) a pair of spring receiving arms fitted and fixed near the front and rear ends of the square shaft (89);
(100) is a pair of front and rear horizontal spring receiving pins integrally projecting from the intermediate height position of the support plate (87) so as to face the same.

A tension coil spring (101) is suspended between the upper and lower sides of each spring receiving arm (99) and the spring receiving pin (100), whereby the cutting edge of the scraping blade plate (94) is cut. Roller fixing part (71)
Is pressed against the circumferential surface. Therefore, from the direction opposed to the fixed compaction roll (71) which is driven to rotate in the direction conforming to the feeding direction (F) of the roll paper (11),
The adhesive (12) adhered to the working circumferential surface can be efficiently scraped off.

Reference numeral (102) denotes a vibrator provided at the center of the angular axis (89).
9) and the attached scraping blade plate (94) are vibrated,
The adhesive (12) adhered to the working circumferential surface of the fixed compaction roll (71) can be scraped off more efficiently.

Reference numeral (103) denotes a cleaning liquid storage tank mounted on the upper surface of the paper pasting apparatus frame (27), and a cleaning liquid supply hose (104) extending from the cleaning liquid supply tank toward the blade edge of the scraping blade plate (94). ) Is provided, and the cleaning liquid is dripped from the tip nozzle portion. Reference numeral (105) denotes an opening / closing valve interposed in the middle of the supply hose (104), and the amount of the cleaning liquid dripped can be adjusted by its opening degree.

Next, the feeding device (C) for the base plate plywood (10) will be described.
Reference numerals 1 and 22 denote a feeder frame (106) which is formed from a steel material and has a three-dimensional framework substantially at the same height as the feeder frame (13). A pair of left and right is mounted on the shaft. Reference numeral (109) denotes an endless second belt conveyor wound around the driving pulley (107) and the driven pulley (108), and the base plate attached by the paper attaching device (B). The plywood (10) continues to be delivered in the lateral direction (X3).

(110) is the second belt conveyor (1)
09) is an inverter-driven geared motor installed below the driving pulley (107) for running drive, and is connected to the driving pulley (107) via an endless transmission belt (111). I have. The geared motor (110) is synchronized with the gear drive motor (46) for driving the first belt conveyor (43) mounted on the paper adhering device (B) to smoothly move the plywood (10). Acts sideways.

(112) is a pair of left and right horizontal support pillows fixed vertically on the upper surface of the feeder frame (106), and (113) is further fixedly mounted on both support pillows (112). A pair of front and rear horizontal guide plates, which stably receive the lower surface of the second belt conveyor (109).

(114) is the second belt conveyor (1).
09) is a pair of front and rear stoppers for temporarily receiving the base plate plywood (10) sent out by the base rod plywood (10), and is embodied from a piston rod of an air cylinder (115) which can be raised and lowered in a state in which a transverse feed passage is shut off. I have.
A support stay (116) supports each of the air cylinders (115) in an upright state, and is fixed to the feeder frame (106) by fixing bolts (117). Numeral (118) is a slot for adjusting the receiving of the fixing bolt (117), which is elongated in the left and right direction, so that the mounting position of the air cylinder (115) can be adjusted.

That is, the stopper (114) for receiving the base plate plywood (10) by both air cylinders (115).
Is raised, and when the preceding plywood (10) sent out from the paper pasting device (B) is received, the plywood (10) is controlled by the fourth sensor (119) which detects the position. paper cutting device (D) is, prior
Over the base plate plywood (10) in the trailing of the base plate plywood (10)
The continuous roll paper (11) is cut at the boundary (seam) between the adjacent baseboard plywoods (10), and as soon as the cutting, the receiving stopper (114) is lowered and returned, and The plywood (10) is continuously fed from the feeding device (C).

For this purpose, as shown in FIGS. 1 and 2, the distance between the cutting position of the paper cutting device (D) and the above-mentioned paper sticking position (the contact point between the movable roller and the fixed roller) is defined as the distance between the right and left sides ( L2) is defined et been in almost <br/> have equal dimensions and a constant width (W1) of the base plate plywood (10), and also receiving the cutting position and the paper cutting device (D) Sutotsupa (114 )
Are also set to have dimensions substantially equal to the fixed width (W1) of the plywood plate (10). The plywood (10) is automatically and intermittently sent out in the horizontal direction (X2) (X3) at each of these distances (L2) and (L3).

Further, the paper cutting device (D) will be described. In FIG. 21, FIG. 23 and FIG. 24 which are extracted and shown, (120) is a paper pasting device frame (27) and a feeding device frame (106). ) Is a paper cutting device frame interposed and connected between the left and right sides, and is also framed from steel so as to be taller than the delivery device frame (106).

Reference numeral (121) denotes a pair of left and right support tables which maintain substantially the same height as the guide plate (41) of the paper sticking device (B) and the second belt conveyor (109) of the feeding device (C). , Paper cutting device frame (12
The cutting blade plate (122) of the roll paper (11) escapes into the gap between the left and right sides of the halfway height position horizontally.

The cutting blade plate (122) is in a longitudinal state facing the support table (121) from above and, needless to say, is the same as the band width (W1) of the roll paper (11)?
Or, it extends slightly longer than this, and its blade edge portion is provided with a gentle inclination angle (θ). As a result, the biting force of the cutting edge portion with respect to the roll paper (11) is increased, and cutting can be performed stably and beautifully.

The upper end of the cutting blade plate (122) is joined to the lower end of a hanger plate (123) slightly longer than the cutting blade plate (122), and is fixed by a number of bolts (124) distributed at regular intervals. ing. Numeral (125) is a pair of angle bars which are sandwiched between the upper ends of the hanger plate (123) in a symmetrical back-to-back state, and each horizontal piece has an inverted U-shaped rod receiving frame (12).
The plurality of items 6) are fixedly erected in a dotted distribution state that keeps a constant front-back distance.

Further, (127) is each rod receiving frame (1).
26) and an elevating rod suspended from the horizontal piece of the angle bar (125). A retaining nut (128) is fastened to the upper end screw portion of the elevating rod. ), A horizontal holding plate (129) is attached and fixed in a longitudinal state.

Reference numeral (130) denotes a spring receiving piece attached and integrated near the lower end of each elevating rod (127), and a compression interposed between the upper and lower parts of the horizontal bar of the angle bar (125). A coil spring (131) is wound around the lifting rod (127). As a result, the elevating rod (127) is constantly pressed down to the down state,
The holding plate (129) at the lower end is a plywood plate (1).
0) is pressed from above.

A pair of front and rear air cylinders (132) for vertically moving the cutting blade plate (122) are integrally hung from the upper surface of the paper cutting device frame (120). Reference numeral (133) denotes a piston rod of each air cylinder (132). A fork (134) attached to the lower end of the air cylinder (132) includes a hanger plate (123) of the cutting blade plate (122) and a pair of right and left angles sandwiching the hanger plate (123). The bar (125) is integrally connected to and attached to the bar (125) from above.

It has been described above that the hanger plate (123) extending longitudinally along the front-rear direction of the paper cutting device frame (120) extends slightly longer than the cutting blade plate (122). A pair of bearing metals (135) is joined and fixed to both front and rear ends of (123).
Reference numeral (136) denotes an elevating guide column that penetrates each bearing metal (135), and a paper cutting device frame (120) for correctly operating the elevating and lowering of the cutting blade plate (122).
It is fixed upright within the frame.

When the cutting blade plate (122) is moved downward by the air cylinder (132), the holding plate (129) is moved almost simultaneously with the blade edge or slightly earlier than the cutting edge plate. ) Is pressed resiliently, and under this condition, the roll paper (11) is quickly and reliably cut by the cutting edge of the cutting blade plate (122).

As described above, the leading board plywood (10) and the succeeding board plywood (10) are continuously connected via the roll paper (11) attached to the surface thereof. In the process, the roll paper (11) is cut into a single sheet at the boundary (joint) between the two plywood plates (10) by the lowering operation of the cutting blade plate (122). That is.

The completion of the cutting is indicated by the fifth sensor (1).
37), and as soon as it is detected, the receiving stopper (114) of the delivery device (C) descends and sends out the preceding base plate plywood (10) from the delivery device (C) while cutting. The blade plate (122) is lifted and returned to prepare for the lateral feed movement of the following plywood (10).

The laminator having the above structure automatically and continuously adheres the roll paper (11) to the base plate plywood (10) for decorative plywood as follows.

That is, the base plate plywood (1) sequentially fed along the vertical direction (Y) to the roller conveyor (14) of the feeding device (A) by an automatic feeder (not shown).
0) is received by the front receiving stopper (15), the air cylinder (22) attached to the feeding device frame (13) is moved by the electric signal from the first sensor (26) which has detected the receiving position. The pusher (1) connected to the piston rod (21)
8) is advanced in the lateral direction (X1), and the locking claws (1)
The plywood (10) locked by step 9) is pushed one by one to the paper pasting position of the paper pasting device (B) and moved.

In this case, at the beginning of the operation, the roll paper (11)
As shown by reference numeral (11a) in FIG. 25, the cutting end of the first plywood (10) is suspended in a state where the pushing movement passage is shut off. As described in 11), this is introduced into the lower surface of the fixed compaction roll (71) while being in contact with the surface on which it is covered.

When the position of the plywood (10) during the pushing movement is detected by the second sensor (40), the air cylinder (31) for moving up and down the movable rolling roller in the paper adhering device (B). ) Raises the movable compaction roll (28), and sandwiches and presses between the upper and lower fixed rolls (71) so as to receive the base plate plywood (10). (28) By the equal high-speed rotation of (71) and the first belt conveyor (43),
The base plate plywood (10) is continuously fed out in the horizontal direction (X2) from the contact points of the rolls (28) and (71).

As is apparent from FIG. 25, the horizontal direction (X
1) In the process of moving to (X2), plywood (10)
The roll paper (11) is firmly adhered and integrated on the surface of the plywood (10a), and in the attached state, as shown in FIGS. ) And the fiber direction (x) of the roll paper (11).
-X) crosses.

In the process from the paper pasting position (the contact point between the movable compaction roll and the fixed compaction roll) to the paper cutting position of the paper cutting device (D), the position of the base plate plywood (10) is detected. When the first belt conveyor (43) detects the moving plywood (10) which is being sent out and moved in the lateral direction (X2), the movable roller (28) Is returned.

Further, the base plate plywood (10) is carried over from the first belt conveyor (43) to the second belt conveyor (109), from the paper cutting position of the paper cutting device (D) to the feeding device (C). It moves in the lateral direction (X3) and receives the stopper (11) attached to the delivery device (C).
4), the air cylinder (132) of the cutting blade plate (122) of the paper cutting device (D) is lowered by an electric signal from the fourth sensor (119) which has detected the receiving position. Cutting blade plate (12
According to 2), the roll paper (11) is cut at the boundary (seam) between the preceding board plywood (10) and the succeeding board plywood (10).

The disconnection is indicated by the fifth sensor (13).
7), the stopping stopper (114) of the delivery device (C) receiving the electric signal descends and returns, and the preceding plywood (10) is sent out from the delivery device (C). The cutting blade plate (122)
Also rises and returns, allowing the subsequent movement of the plywood (10).

From the second of the plywood (10), 1
The roll paper (11) cut not only at the boundary (seam) between the first and the second, but also at the boundary (seam) between the first and the second as well as being continuously traversed so as to push it from behind.
The intermediate part is necessarily positioned so as to face the lower surface of the fixed compaction roll (71), and is covered in the second and third continuous state. 2
8) and the fixed compaction roll (71) can be attached and integrated successively without any trouble.

The third sensor (48) is used only for detecting the position of the first plywood (10) at the beginning of the operation, and the fifth sensor (137) is used for the third sensor (137) from the second.
In place of the sensor (48), position detection of the plywood (10)
Know. And from the second of the board plywood (10)
The receiving stopper (11) of the delivery device (C)
4), the movable rolling roll (28)
While the lower cylinder (31) is returned to the lower position,
At the same time or immediately thereafter, the roll paper (11) is
It is adapted to be cut by a plate (122).

Such an operation cycle is referred to as a plywood (1).
By repeating this process for each sheet of (0), the roll paper (11) can be stably stuck on the surface of the line on the line that automatically and intermittently conveys a large amount of the sheet. It can be sent out in such a single-wafer form.

The paper (1) stuck on the plywood (10)
On the surface of 1), a veneer veneer (138) thinned in the subsequent next step is coated with a synthetic resin-based topcoat adhesive (139).
26, the product is produced as a decorative laminated plywood as shown in FIG. still,
As the overcoat adhesive (139), it is preferable to employ a mixture of the same thermoplastic adhesive as the undercoat adhesive (12) and a thermosetting adhesive.

According to the method of pasting the paper to the base plate plywood (10), the undercoat adhesive (12) previously applied to the surface of the base plate plywood (10) was pasted to this. The synthetic resin adhesive film (140) as shown in FIG. 25 is formed by infiltrating the roll paper (11) and mixing the paper (11) and the adhesive (12). 11)
Since it does not remain in the base paper state, the top coat adhesive (139) for applying the decorative veneer (138) is slightly applied thereto, and the top coat adhesive (139) is applied to the surface of the decorative veneer (138). Even if you decide not to seep into
The decorative veneer (138) can be finished as a decorative laminated plywood without delamination.

In addition, the fiber direction (xx) of the roll paper (11) and the front veneer (10) on the base plate plywood (10) are used.
The fiber direction (yy) of a) is in a cross-attached state, so that it exhibits excellent resistance to surface cracks of the decorative veneer (138), and the natural veneer (138) The aesthetic effect of the heather can be maintained for a long time.

The fiber direction of the decorative veneer (138) is the fiber direction (y) of the front veneer (10a) in the base plate plywood (10).
-Y) is preferably adhered in parallel, but may be adhered in a cross state. Cover it,
The roll paper (11) and the undercoating adhesive (12), which are the so-called sticking bases of the decorative veneer (138), form a solid synthetic resin adhesive film (140) that is mixed together, Further, the paper (11) and the veneer veneer (10) face veneer (10a) are in a cross-bonded state in the fiber direction (xx) (yy), and the veneer veneer (138) ) Does not occur.

In the illustrated embodiment, the feeding device (A) is placed on the roller conveyor (14) in the vertical direction (Y).
The platen plywood (10) once fed along along the direction is pushed and moved by the pusher (18) in the lateral direction (X1) where the paper pasting device (B) is present, and the table is moved. Although the fiber direction (yy) of the veneer (10a) is kept in a cross-attached state with the fiber direction (xx) of the roll paper (11), the vertical direction (Y ) Is omitted, and the base plate plywood (10) is automatically and intermittently fed into the horizontal direction (X1) where the paper pasting device (B) is present, so as to move straight, so to speak. But I can't do it.

[0104]

As described above, in the method for automatically and continuously attaching paper to the plywood board (10) according to the present invention, the plywood board (10) to which the adhesive (12) has been applied in advance. ), The roll paper (11) which is fed out and rotated from the leading edge side of the separation, and the base plate plywood (10).
Rolling roll (71) facing from above, and a movable rolling roll that is raised and lowered from below so as to be able to pinch the base plate plywood (10) together with the fixed rolling roll (71). (28) and all of them are mounted in a parallel horizontal state,

The plywood plate (10) was replaced with its front veneer (10).
Under the condition in which the fiber direction (yy) of a) crosses the fiber direction (xx) of the roll paper (11), the upper and lower sides of the two compaction rolls (71) and (28) are moved to each other. By sequentially pushing the roll paper (11) into the surface of the base plate plywood (10) in a coated state,

At the point of contact between the movable compaction roll (28), which is raised each time it is pushed in, and the fixed compaction roll (71), the roll paper (11) is placed on the base plate plywood (10).
To the surface of the

The leading board plywood (10) sent out from the contact point of the two compaction rolls (71) and (28) is temporarily received during the delivery movement, and the leading board plywood (10) is received.
A trailing die plate plywood (10) and the roll paper pasted continuously over the (11), the preceding base plate plywood (10) and the rear row of the base plate plywood (10) 27, it is possible to completely solve the problems of the prior art described at the beginning with reference to FIGS. 27 to 29, and to provide an elegant makeup that is free from delamination and surface cracks. There is an effect that a laminated board can be obtained.

Further, since the laminator for carrying out the above method is also configured as described in claim 2, the laminator is provided on a line for automatically and intermittently transporting the base plate plywood (10). The paper (11) can be efficiently adhered to the surface, and it is extremely excellent in labor saving in its operation and mass production of decorative laminated plywood.

[Brief description of the drawings]

FIG. 1 is an overall schematic side view of a laminator according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a perspective view showing a plywood board at the time of feeding.

FIG. 4 is a perspective view showing an arrangement relationship between a base plate plywood and roll paper.

FIG. 5 is a perspective view showing a state in which paper is stuck to a plywood plate;

FIG. 6 is a front view illustrating a feeding device for a plywood plate;

FIG. 7 is an enlarged side view of FIG. 6;

8 is a partially enlarged sectional view taken along line 8-8 in FIG. 6;

FIG. 9 is a front view illustrating a paper sticking apparatus extracted from the apparatus;

FIG. 10 is a development view extracting and showing a drive system of a fixed roller and a movable roller.

FIG. 11 is a partially enlarged side view of FIG. 9;

FIG. 12 is a side view showing a cleaning device for a fixed pressure roller.

FIG. 13 is a cross-sectional front view extracting and showing a bearing state of roll paper.

FIG. 14 is a right side view of FIG.

FIG. 15 is a left side view of FIG.

FIG. 16 is a sectional front view of a modified example corresponding to FIG.

FIG. 17 is a partially enlarged cross-sectional view showing a state where the cleaning device is attached to the fixed pressure roller.

FIG. 18 is a sectional view taken along line 18-18 of FIG. 17;

FIG. 19 is a sectional view taken along line 19-19 of FIG. 17;

FIG. 20 is a side sectional view corresponding to FIG. 18 showing a cleaning device extracted.

FIG. 21 is a side view showing a feeding device for a plywood plate and a paper cutting device.

FIG. 22 is an enlarged cross-sectional view illustrating a receiving stopper of the plywood.

FIG. 23 is a front view showing a paper cutting device.

FIG. 24 is a plan view of FIG. 23;

FIG. 25 is an explanatory view showing an operation of attaching paper to a base plate plywood.

FIG. 26 is a sectional view showing a completed state as a decorative laminated plywood.

FIG. 27 is an operation explanatory view showing a conventional paper sticking method for a base plate plywood.

FIG. 28 is a perspective view showing a conventional arrangement relationship between a base plate plywood and paper.

FIG. 29 is a sectional view showing a conventional decorative laminated plywood.

[Explanation of symbols]

 (10) ・ Plywood plywood (10a) ・ Table veneer (11) ・ Roll paper (12) ・ Adhesive (18) ・ Pusher (28) ・ Movable rolling roller (43) ・ First belt conveyor (71)・ Fixed rolling roller (109) ・ Second belt conveyor (114) ・ Stopper for receiving plywood plate (122) ・ Cutting blade plate (A) ・ Sending device for plywood plate (B) ・ Paper pasting device (C)・ Delivery device for plywood (D) ・ Paper cutting device (E) ・ Cleaning device (L1) ・ Constant length of plywood (L2) ・ Spacing distance (L3) ・ Spacing distance (W1) ・ Plywood plywood Constant width (W2), constant band width of roll paper (X1), horizontal feed direction (X2), horizontal feed direction (X3), horizontal feed direction (Y), vertical feed direction (xx), roll paper Fiber direction (y-y) ・ Fiber direction of front veneer

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B27M 1/08 B27D 5/00

Claims (2)

(57) [Claims] 1. A roll paper (11) which is fed out and rotated from the leading end side thereof only after an adhesive (12) has been applied to the surface of a base plate plywood (10) on which the adhesive (12) has been previously applied. A fixed compaction roll (7) facing the plywood (10) from above
1) and a movable compaction roll (28) which is raised and lowered from below so as to be able to sandwich the base plate plywood (10) together with the fixed compaction roll (71). The fiber direction (yy) of the veneer plate (10a) is set to the fiber direction (xx) of the rolled paper (11).
Under the condition of crossing with the two compaction rolls (7
1) By sequentially pushing the upper and lower parts of (28),
The roll paper (11) is brought into contact with the surface of the base plate plywood (10) in a covering state, and the roll paper (2) is raised each time the roll paper (11) is pushed in.
8) and at the point of contact between the fixed compaction roll (71), the roll paper (11) is sequentially adhered to the surface of the base plate plywood (10) and integrated, and the two compaction rolls (71) (28) The leading plate plywood (10) sent out from the contact point of (1) is once received during the sending movement, and continuously over the leading plate plywood (10) and the trailing plate plywood (10). The roll paper (11) that has been pasted is used as the preceding plywood (10).
A method of automatically and continuously attaching paper to a board plywood, wherein cutting is performed at a boundary between the board plywood and a succeeding board plywood (10). 2. A fixed compaction roll (71) suspended so as to face a conveying line of a base plate plywood (10) from above, and automatically intermittently from below for each one of the base plate plywood (10). The movable compaction roll (28) capable of holding the plywood (10) together with the fixed compaction roll (71) by being raised and lowered, and the both compaction rolls (71) (28) A pusher (18) which is automatically intermittently moved forward and backward to sequentially push the plywood (10) between the upper and lower sides of the plywood (10), and upwardly to the surface of the plywood (10) pushed by the pusher (18). and spliced to the covering state from the first time, the roll paper (11) which is rotated unwinding from its disconnecting the distal end side, series arrangement for feeding the base plate plywood (10) from the contacts of both compacting rolls (71) (28) tuning to dose measles under, each other The first and second belt conveyors (43) (10)
9) and a roll paper cutting blade plate (122) that is automatically intermittently moved up and down from above so as to cut off between the two belt conveyors (43) and (109). A stop stopper (114) for a plywood plate, which is automatically and intermittently moved up and down from below so as to shut off the feed-out movement passage by (109); Distance (L2) between the cutting blade plate (122) and the cutting position of the roll paper (11), and the mutual spacing distance between the cutting position and the receiving position of the plywood (10) by the stopper (114) ( the L3), both determined substantially not equal dimensions and a constant width (W1) of the base plate plywood (10), pre Ji because adhesive surface (base plate plywood 12) is applied (10) , Its front veneer (10a) Fiber direction (y-
Under the condition that y) crosses the fiber direction (xx) of the roll paper (11), the pusher (18) pushes the two compaction rolls (71) and (28) sequentially between the upper and lower sides. , Roll paper (1) on the surface of the plywood (10).
While spliced to 1) the covering state, the movable roller compaction roll is raised operative for each pushed Part (2
At the point of contact between 8) and the fixed compaction roll (71), the roll paper (11) is sequentially adhered to the surface of the base plate plywood (10) and integrated, and both compaction rolls (71) and (28) The leading plywood (10) sent out by the first and second belt conveyors (43) and (109) from the contact point is temporarily stopped by a stopper stopper (114) which is raised to shut off the feeding movement path. Receiving, the preceding plywood plywood (10) and the following plywood plywood (1)
0) and the roll paper pasted continuously over (11) and said first and second belt conveyors (43)
The cutting blade plate is lowered operated to cut off between each other (109) (122), the preceding base plate plywood (10)
A laminator for automatically and continuously attaching paper to a plywood plate, wherein the laminator is set so as to be cut at a boundary portion between the plywood plate and a subsequent plywood plate (10).