JPH068357A - Pasting apparatus - Google Patents

Abstract

PURPOSE:To selectively supply paste to both surfaces of a suspended piece to be pasted by attaching a laterally movable frame capable of rotating a rotary frame having a pasting roll, a paste supply applicator and a sheet receiving wheel by 180 deg. around a sheet pass line. CONSTITUTION:A rotary frame 4 is attached to a laterally movable frame 6 so as to be rotatable by a shaft 10. A pasting roll 1, a paste supply applicator 25 and a sheet receiving wheel 17 are attached to the rotary frame 4. When the upper surface of a fed corrugated cardboard sheet 23 is pasted, the rotary frame 4 is rotated by a motor 15 so that the pasting roll 1 comes to the upper surface of the sheet and the sheet receiving wheel 17 is adjusted so as to have a proper interval with respect to the roll 1 and the pasting roll 1 is rotated by a motor 8 to apply paste to the upper surface of the sheet 23. When the under surface of the sheet 23 is pasted, the rotary frame 4 is rotated by 180 deg. and the under surface of the sheet 23 is pasted by the pasting roll 1. Therefore, a pasting apparatus can be miniaturized as a whole.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention selectively transfers and supplies glue (adhesive) to either the upper side or the lower side of a glued hanging piece formed on a base paper (corrugated board) for making paper in a corrugating machine. The present invention relates to a gluing device that can be used.

[0002]

2. Description of the Related Art FIGS. 5 to 8 are schematic structural views showing an example of a conventional gluing device in a corrugated board sheet making machine. FIGS. 5 and 6 are settings for internal sticking, and FIGS. FIG. 9 is an explanatory view of a corrugated board box forming method, showing a setting state for external sticking. Now, as shown in FIG. 9, as a method of pasting the sheet side wall in the corrugated board making machine, as shown in FIG. 9 (a), the case where the glued hanging piece 23a is positioned inside (internal pasting) is used.
There is a case where the glued hanging piece 23a is positioned outside (outer pasting) as shown in (b). Therefore, it becomes necessary to be able to arbitrarily change the gluing surface (front and back) depending on whether inner or outer attachment is desired.

The conventional gluing device shown in FIGS.
Glue to the glued hanging pieces 23a of the corrugated cardboard sheet 23 on the frame 26 configured to be movable in the lateral width direction corresponding to the position of the glued hanging pieces 23a formed on the box corrugated board sheet 23 conveyed from the previous step. Adhesive roll 1 for transferring and supplying powder, and an applicator 2 for adhesive supply that engages with the adhesive roll 1
5. A frame 27 having a pair of (two) sheet carriages 17a, 17b positioned above and below the sizing roll 1 and detachably engaged with the sizing roll 1 (gap adjustment). The glued rolls 1 are mounted so that they can be moved up and down by a predetermined amount, and are rotated in opposite directions via a rotation transmission device at the raised and lowered positions.

Further, the width direction moving frame 26 is suspended from the glue attaching device supporting shaft 28 through a slide bearing which allows the upper end portion to move in the axial direction, and a width direction moving screw rod 29 is provided. By rotating the corrugated board sheet 23, the corrugated board sheet 23 can be set at a predetermined position with respect to the glued hanging piece 23a. The adhesive roll 1 for transferring the adhesive to the corrugated board sheet 23 is fixed to one end of a shaft 30 axially supported by a housing fixed to the elevating frame 27 via a bearing, and the other end of the shaft 30 is a gear. A bevel gear 32 is mounted in the box 31, and is meshed with a bevel gear 34 which is axially slidably fitted to a drive shaft 33 via a slide key. The lower end of the drive shaft 33 has a bracket 3 fixed to the width direction moving frame 26.
5, the upper end of which is connected to the lower end of a drive shaft 36 which is axially supported by a housing fixed to the frame 26 via a coupling. A bevel gear 38 is mounted in the gear box 37 at the upper end of the drive shaft 36, and is meshed with a bevel gear 40 which is slidably fitted in the drive shaft 39 via a slide key. Further, the drive shaft 39
Is powered by a rotation transmission mechanism (not shown) from the drive system of the scissor making machine through a belt V, and the base paper (cardboard sheet)
It is configured to rotate at a rotational speed that is synchronized with the traveling speed of. If the drive shaft 39 is rotated here, the gluing roll 1 can be rotated at a speed corresponding thereto. Further, by switching the clutches 1A, 2A and 3A, the glued roll 1 can be rotated normally, reversely and idling.

The vertical movement of the elevating frame 27 will now be described. A female screw is formed on a part of the elevating frame 27, and is screwed with a vertically moving screw rod 41 installed parallel to the drive shaft 36. is doing. A lower end portion of the vertically moving screw rod 41 is axially supported by a bracket 35 fixed to the width direction moving frame 26 via a bearing, and a movement amount detecting encoder 42 is further connected to the lowermost end. Further, the upper end of the vertically moving screw rod 41 has a geared motor 43 with a brake fixed to the frame 26 via a bracket.
It is connected to the shaft via a coupling. In addition, a pair of (two) sheet carriages 1 positioned above and below the gluing roll 1
Reference numerals 7a and 17b respectively denote shafts 19 that are fixed to substantially the center of an arm 18 via bearings, and the arms 18 are swingably attached by a fulcrum shaft 20 projecting from an elevating frame 27. The other end of the arm 18 is connected to a cylinder 21 that is swingably attached to the lifting frame 27. In the figure, reference numeral 22 is a stopper for setting the position of the arm 18, and the roll with glue 1 and the receiving wheel 17 are set.
By adjusting the engagement state with a and 17b, it is possible to finely adjust the contact pressure when the cardboard sheet 23 is sandwiched.

Next, the setting will be briefly described. FIGS. 5 and 6 show the settings for the inside attachment (paste transfer to the upper surface of the corrugated cardboard sheet). First, the geared motor 43 with a brake is driven to raise the elevating frame 27 to a predetermined upper position to attach the glue to the seat carriage 17b. After adjusting the gap with the roll 1, the widthwise moving screw rod 29 is rotated to convey the glued roll 1 to a predetermined position corresponding to the glued hanging piece of the corrugated board sheet 23. The adhesive supply applicator 25 is attached to a part of the elevating frame 27 and is engaged with the adhesive roll 1. 7 and 8 show the settings for external attachment (transfer of glue to the lower surface of the corrugated cardboard sheet). First, the geared motor 43 with a brake is driven to lower the elevating frame 27 to a predetermined lower position, and the carriage 17a and the roll with glue. After adjusting the gap with respect to No. 1, the widthwise moving screw rod 29 is rotated to convey the glued roll 1 to a predetermined position corresponding to the glued hanging piece 23a of the next-order cardboard sheet. The sheet receiving wheel 17b on the unused side is set with a predetermined gap between the sheet receiving wheel 17b and the gluing roll 1 by the pushing operation of the cylinder 21. Also, the glue supply applicator 25 has a directionality, and it is necessary to move and set it to the illustrated position of the elevating frame 27. The above-described conventional gluing device has the above-described configuration and functions, and there are various problems that will be described later when the setting is changed between the inner sticking and the outer sticking or structurally described later.

[0007]

As described above, the pasting device in the conventional corrugated board making machine has the following structural problems. That is, all the rotational driving force of the sizing roll 1 accompanying the operation is received from the drive shaft of the main body of the scissor machine through the power transmission means such as the pulley, the synchro belt, and the clutch, and separately provided for the idling rotation when the apparatus is stopped. There is a drawback that the gluing device such as a motor is large and complicated. In addition, since the gluing roll 1 is moved up and down with respect to the sheet path line, it is necessary to install two sets of sheet receiving wheels 17a and 17b that are opposed to each other with the sheet 23 interposed therebetween. As described above, since the conventional gluing device is constructed, there is a drawback that the assembly and adjustment are difficult and the manufacturing cost rises in terms of the number of parts. The present invention has been proposed to solve the above-mentioned conventional drawbacks.

[0008]

For this reason, the present invention is directed to a gluing device which is installed in a scooping machine for forming a box by a corrugated cardboard sheet and which transfers and supplies the glue for sticking the side walls of the box to each other. Corresponding to the position of the glued hanging piece formed on the side end of the corrugated board sheet conveyed from the process, the glueing roll for supplying and transferring the glue to the glued hanging piece on the frame that can move in the lateral direction of the device, and the glue. The glue supply applicator that engages with the glue roll, the seat carriage that is detachably engaged (gap adjustment) between the glue roll, and the rotating frame having the seat carriage in the seat path line. 180 ° in the center
A motor that is mounted so as to be rotatable and that can control forward / reverse rotation and speed such as a servo motor that constitutes the rotation driving means of the gluing roll 1 and a control device that can control according to the traveling conditions (direction, speed) of the sheet. It is provided, and this is used as a means for solving the problem.

[0009]

In the present invention, when gluing to the upper surface of the corrugated board sheet, the gluing roll is rotated upward with respect to the sheet path line, and the corrugated board sheet is passed between the sheet receiving car located below To do. On the other hand, when gluing the lower surface of the corrugated cardboard sheet, the gluing roll is rotated downward with respect to the sheet path line, and the corrugated cardboard sheet is passed between the sheet receiving roller and the sheet receiving roller located on the upper side. On the other hand, the peripheral speed of the gluing roll is controlled by detecting the traveling speed of the corrugated cardboard sheet and feeding it back to the servomotor which is the rotation driving means of the gluing roll. By automatically changing the position of the gluing roll portion and adjusting the peripheral speed, it is possible to easily perform the exchange setting for inner and outer attachments, and also to simplify the structure.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments of the drawings. FIGS. 1 to 4 show the embodiments of the present invention, and FIGS.
Shows the state when the inner pasting is set, and FIGS. 3 and 4 show the state when the outer pasting is set. The purpose and the series of functions of the gluing device installed in the corrugated board making machine are the same as those described in the section of the prior art. Further, in the present invention, the same parts as in the prior art will be designated by the same reference numerals. 1 to 4, the difference from the conventional device will be described. The gluing roll 1 has a gluing roll shaft 3 supported by a rotating frame 4 via a bearing 2 and rotates in an arbitrary direction. You can do it. Further, the gear 5 fixed to the rear end of the sizing roll shaft 3 meshes with the gear 9 fixed to the shaft end of the motor 8 mounted on the frame 6 via the bracket 7. On the other hand, the motor 8 is a motor such as a servo motor capable of performing normal rotation and reverse rotation and having a function of arbitrarily variably setting the rotation speed. Further, the rotary frame shaft 10 protruding from the rotary frame 4 has a bearing 11
It is attached to the frame 6 via. In addition, 1 in the figure
Reference numeral 2 denotes a gear whose center is aligned with the axis of the shaft 10 and which is fixed to the rotating frame 4, and which is also attached to the upper end of the frame 6 via an intermediate gear 14 which is fixed to the shaft 13 fixed to the frame 6 part. Gear 16 fixed to the shaft end of 15
Is connected with. The axis of the rotation driving motor 8 of the sizing roll 1 is aligned with the axis of the shaft 10 of the rotating frame 4.

The seat wheel 17 engaged with the sizing roll 1 is a shaft 19 fixed to a part of an arm 18 via a bearing, similar to the conventional one. The arm 18 is a fulcrum shaft 2 protruding from the rotating frame 4.
It can swing about 0. Further, the other end of the arm 18 is connected to the head of a cylinder 21 whose rear end is swingably supported by the rotary frame 4. In the figure, 22 designates (sets) the position of the arm 18.
By adjusting the gap between the gluing roll 1 and the sheet receiving wheel 17 with the stopper, it is possible to finely adjust the contact pressure when the corrugated cardboard sheet 23 running in the middle is nipped. Further, reference numeral 24 in the drawing denotes a control device which receives the traveling speed (or drive speed of the scissor machine) signal of the corrugated cardboard sheet 23 detected through the speed detecting means, and controls the rotation speed of the servo motor 8 by feeding back the signal. The peripheral speed of the sizing roll 1 can be automatically matched with the traveling speed of the corrugated cardboard sheet 23 via 9, 5. Further, a change command signal for inside / outside sticking can be transmitted to rotationally drive the motor 15 to rotationally move the rotary frame 4 to a predetermined position side for setting. Reference numeral 25 in the figure denotes an adhesive supply applicator fixed to the rotary frame 6, and is engaged with the outer peripheral surface of the adhesive roll 1.

Next, the setting will be described. FIG. 1 and FIG. 2 show the setting at the time of inner bonding (paste transfer to the upper surface of the corrugated cardboard sheet). First, the motor 15 is driven to drive the gear 16 and the intermediate gear 1.
The gear 12 is rotated via the gear 4, and the rotary frame 4 integrated with the gear 12 is rotated about the rotary frame shaft 10 and set to the position shown in the drawing, and then the corrugated paper sheet 23 to be fed next. Correspondingly, the gap between the sheet carriage 17 and the sizing roll 1 is adjusted. Then glue applicator 2
5 is attached to the position shown in the drawing and engaged with the outer peripheral surface of the sizing roll 1. Then, by rotating the width direction moving screw rod 29, the gluing roll 1 is conveyed and set to a predetermined position corresponding to the gluing hanging piece of the corrugated board sheet 23. It should be noted that the same operation is performed from the state of the inside-paste setting, and the sizing roll 1 is moved below the sheet path line by the rotational movement of the rotating frame 4 as shown in FIGS. By adjusting the gap with the gluing roll 1 and changing the mounting direction of the glue supplying applicator 25 up and down, the exchange setting can be made for external sticking. The applicator 25 has a vertical direction when it is attached. Further, in the present invention, as a structural example other than the illustrated embodiment, a shaft of a motor 8 fixed to a rotary frame 4 via a coupling is directly connected to a shaft rear end of the gluing roll 1, and the motor 8 together with the rotary frame 4 is connected. It is also possible to rotate the gears integrally, and as the rotation mechanism of the rotary frame 4, the gears 12,
It is also possible to rotate the rotary frame 4 by 180 degrees via a rack and a pinion without using the motors 14, 16 and the motor 15. Furthermore, as another means for transmitting the rotational driving force, a synchro pulley or a synchro belt employed in the related art may be used for connection.

[0013]

As described above in detail, according to the device of the present invention, the main body frame of the gluing device unit is incorporated with the inner-pasting / outer-paste exchange setting mechanism and the rotative driving mechanism of the gluing roll as a unit. Assembling and adjusting are simplified, the number of seat carriages becomes one set, the entire structure is simplified, and the number of mechanical parts can be reduced, so that the manufacturing cost can be reduced. In addition, since the power transmission mechanism is simple because there is no connection with the rotary drive system on the machine side of the machine, the time required for incorporating the machine into the machine can be shortened, and maintenance and inspection are facilitated. Furthermore, the entire device of the gluing device can be downsized, and various effects such as easy installation (layout) in the machine body can be obtained.

[Brief description of drawings]

FIG. 1 is a side sectional view of an inner pasting state in a gluing device showing an embodiment of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a side sectional view of the pasting device in an externally attached state according to the embodiment of the present invention.

FIG. 4 is a front view of FIG.

FIG. 5 is a side sectional view of a conventional gluing device.

FIG. 6 is a cross-sectional view of the state of internal attachment in the front cross-sectional view of FIG.

FIG. 7 is a cross-sectional view of an externally attached state different from FIG.

FIG. 8 is a detailed view of a main part in FIG.

FIG. 9 is an explanatory diagram of a method of attaching inside and outside of a cardboard box.

[Explanation of symbols]

 1 Roll with glue 2,11 Bearing 3 Roll shaft with glue 4 Rotating frame 5,9,12,16 Gear 6 Frame 7 Bracket 8,15 Motor 10 Rotating frame shaft 13 Shaft 14 Intermediate gear 17 Seat wheel 18 Arm 19 Shaft 20 Support shaft 21 Cylinder 22 Stopper 23 Corrugated cardboard sheet 24 Control device 25 Adhesive applicator

Claims (1)

[Claims] 1. A side end of a corrugated cardboard sheet conveyed from a previous step in a gluing device which is installed in a scooping machine for forming a box from a corrugated cardboard sheet and which transfers and supplies a glue for adhering side walls of the box to each other. Corresponding to the position of the glued hanging piece formed in the above, and a glueing roll for feeding and transferring the glue to the glued hanging piece on a frame that can move in the lateral direction of the device, and a glue supply application that engages with the glued roll. A sheet receiving wheel that is detachably engaged (gap adjustment) between the roller and the gluing roll, and a rotating frame having the sheet receiving wheel is attached so as to be able to rotate 180 ° around the sheet path line,
It is provided with a motor capable of forward / reverse rotation and speed adjustment, such as a servo motor, which constitutes the rotation driving means of the gluing roll 1, and a control device capable of controlling in accordance with the traveling conditions (direction, speed) of the sheet. Characteristic gluing device.