JPH0639970Y2 - Boxing machine gluing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a gluing device for a corrugated board box making machine.

(Prior Art) FIGS. 6 and 7 are schematic side views showing an example of a conventional gluing device in a corrugated board box box making machine. FIG. 6 is a setting for inside sticking, and FIG. 7 is outside sticking. Shows the case of setting for. Further, FIG. 8 is an explanatory view of a general cardboard box forming method, and FIG.
The figure is an illustration of a cardboard box making machine.

Now, a general box-making machine has a paper feed unit 4 as shown in FIG.
4, a printing unit 45, a paper discharge unit 46, a folding unit 47, a counter / ejector unit 48, and the like. First, the paper feed section
Reference numeral 44 denotes a device that carries out the corrugated cardboard sheets 1 stacked on the table one by one from the lowermost sheet through a means such as a kicker, and the next printing unit 45 performs predetermined printing on the fed sheet 1. It is a part. In the paper output unit 46,
The required creasing and slotter groove processing are performed by the pair of creaser rolls and slotter rolls. After that, hand hole or air hole processing, gluing, and bending processing are sequentially performed, and in the final step, the counter / ejector section 48 is stacked as a folded box and carried out as a predetermined number of bundles to the outside.

8 (a), (b), (c), and (d) are explanatory views of the bonding state of the sheet 1 in the cardboard box,
There are a case where the glued hanging piece portion 1'is positioned inside as shown in (b) and a case where the glued hanging piece portion 1'is positioned outside as shown in (c) and (d). Therefore, it is necessary to change the gluing position (front and back of the corrugated cardboard sheet) depending on whether the inner gluing joint or the outer gluing joint is desired. That is, in FIG. 6 and FIG. 7, as a whole structure, there are two sizing rolls 49, 50 configured to hold the sheet 1 so as to sandwich the corrugated cardboard sheet 1 from above and below. The glue supply applicator 51 or 52 made exclusively for each is engaged with the 50. In addition, the glue circulation path and supply path are provided in the tank below.
By driving the pump 54 with the glue 3 in the hose 43
Applicator for sucking up more and supplying glue by hose 43 '
It is supplied to 51 or 52, and excess glue is collected in the tank 53 through the hose 43 ″.

The glue 3 transferred and supplied from the glue applicators 51, 52 to the glue rolls 49, 50 is rotatably transferred while being attached to the outer peripheral surfaces of the glue rolls 49, 50, and is further contacted with the corrugated cardboard sheet 1. It is transferred to the specified surface. The adhesive remaining on the outer peripheral surface of the adhesive roll is fed back into the adhesive applicators 51 and 52. Further, the amount of paste reduced by the transfer of the paste onto the corrugated board sheet 1 is compensated by appropriately supplying new paste into the tank 53. After that, the above cycle is sequentially repeated.

FIG. 6 shows the setting for inner sticking. The glue 3 sent by the glue circulation described above is transferred along the peripheral surface of the glue roll 49 which rotates in correspondence with the traveling speed of the corrugated board sheet 1,
The sheet transferred to the upper surface of the sheet 1 is carried out to the next step. In this case, there is no adhesive supply to the sizing roll 50 located below via the sheet 1, and the sizing roll 50 merely functions as a vehicle for holding and transporting the corrugated board sheet 1.

Further, FIG. 7 shows the setting at the time of external sticking, and the glue 3 sent by the glue circulation is transported along the peripheral surface of the gluing roll 50 that rotates corresponding to the traveling speed of the corrugated board sheet 1, and the same sheet is sewn. It is transferred to the next process in a state where it has been transferred to the lower surface of 1. Then, in this case, contrary to FIG. 6 (inside attachment), the gluing roll 49 positioned above the sheet 1 functions as a vehicle for holding and transporting the sheet 1. In addition,
The gluing rolls 49 and 50 forming the pair can change the mutual axial distance by a gap adjusting device (not shown), and can adjust the pressing force (contact pressure) to the corrugated board sheet 1.

(Problems to be solved by the invention) Since the pasting device in the conventional corrugated board box making machine is equipped with two types of pasting rolls having different diameters, there are two types of pasting rolls when the pasting roll is used and when the pasting roll is used. Since the gluing roll is changed to a roll having different upper and lower diameters, a dedicated glue supply applicator is required for each of the upper and lower rolls. Therefore, it is necessary to change to the dedicated glue supply applicator attached to each upper and lower rolls when changing the setting of outer sticking and inner sticking.In this case, it is necessary to change the connection of the glue circulating hose each time. At the same time, since it is necessary to replace the gluing roll to be used, it was necessary to clean the outer peripheral surface of the gluing roll that newly functions as a vehicle.
In addition, since it is necessary to have two types of sizing rolls, a large space is required, and when installing in the same space, it is necessary to reduce the diameter of the sizing rolls conversely. It was not possible to avoid the scattering of the glue due to. Further, since it takes time to change the settings of the inner and outer sticking, there is a problem that the operating rate of the entire apparatus is lowered, and thus the productivity is unavoidably lowered.

The present invention is to provide a gluing device that can solve the above-mentioned conventional problems by providing one gluing roll.

(Means for Solving the Problems) Therefore, the present invention provides a gluing device for a box making machine, which transfers and pastes the glue to the glued hanging pieces made on the corrugated cardboard sheet for boxes conveyed from the previous step. Is arranged on one side of the device frame movable in the width direction of the device frame, and engages with a drive shaft supported by the device frame to move up and down by a predetermined amount. One supported gluing roll, which is attached to a part of the elevating frame, advances the corrugated cardboard sheet with respect to the gluing roll at the vertical movement position of the gluing roll when externally and internally pasting the corrugated cardboard sheet. A glue supply applicator that changes the mounting position in the front-rear direction, and a gluing roll that is rotatably supported by a pair of upper and lower arms swingably mounted at the upper and lower positions of the elevating frame. A pair of sheet carriages that can be brought into and out of contact with the upper and lower surfaces of the gluing roll, and the gluing roll is driven to rotate in one direction at the raised position of the gluing roll, and the gluing roll is moved at the lowered position of the gluing roll. It is composed of a rotation transmission device for reverse rotation, which serves as means for solving the problem.

(Operation) In the above configuration, when gluing the upper surface of the corrugated cardboard sheet, the gluing roll unit frame is raised to a predetermined position, and the corrugated cardboard sheet is placed between the gluing roll and the receiving car positioned below the gluing roll. It is held and conveyed by the carriage, and the receiving car located above is set to be separated from the gluing roll. On the contrary, when gluing to the lower surface of the corrugated board sheet, the gluing roll part frame is lowered to a predetermined position, and the corrugated board sheet is sandwiched and conveyed between the gluing roll and the vehicle above the gluing roll. The receiving car located below should be set apart from the gluing roll. By automatically setting each of the above-mentioned ascending and descending positions, it is possible to change the inside and outside sticking and re-set with the glue roll.
Since the rotation direction changes with each piece, it is only necessary to change the front and rear of the glue supply roll of the glue supply adder.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 to FIG. 5 show a first embodiment of an automatic inner / outer exchange device in a gluing device of a box making machine showing an embodiment of the present invention. An example is shown. In this embodiment, a series of intended functions of the corrugated board box making machine and the gluing device provided in the box making machine are the same as those described in the section of the prior art. The present invention automatically transfers the adhesive (adhesive) to either the upper side or the lower side of the glued hanging piece formed on the box-making base paper (corrugated cardboard sheet) and automatically changes the setting. It proposes an inner-paste and outer-paste exchanging device which is performed.

Now, as shown in the drawings, the corrugated cardboard is mounted on a frame 2 which is configured to be movable in the lateral width direction by a known means at a position corresponding to the position of the glued hanging piece made on the corrugated cardboard sheet for a box 1 conveyed from the previous step. One glue roll 4 for transferring and feeding the glue 3 to the sheet glue hanging piece, a glue supply applicator 5 engaging with the glue roll 4, and a glue roll 4 positioned above and below the glue roll 4. A frame 7 having a pair of (two) seat carriages 6 and 6 which are detachably engaged (clearance adjustment) with the No. 4 is mounted so as to be capable of moving up and down by a predetermined amount, and is rotated at a position where it is raised and lowered. Roll 4 with glue via transmission device
Are configured so that they can rotate in opposite directions.

As shown in FIGS. 1 to 5, the width direction moving frame 2
Is suspended from a gluing device supporting shaft 9 through a slide bearing 8 which allows the upper end thereof to move in the axial direction. The lower end of the same is a channel erected in the lateral direction of the box making machine by a pair of cam followers 10. It is rolling on the upper guide plate 11. Therefore, by rotating the width direction moving screw rod 12, it is possible to set the corrugated paperboard sheet 1 at a predetermined position with respect to the glued hanging piece.

The roll with glue 4 that transfers the glue to the corrugated board sheet 1
Bearing 1 in housing 13 fixed to lifting frame 7
It is fixed to one end of a shaft 15 which is axially supported via 4,14 ′, and the other end of the shaft 15 is provided with a bevel gear 17 in a gear box 16 and is attached to a drive shaft 18 via a sliding key or the like. Is engaged with a bevel gear 19 which is slidably fitted in the axial direction. The lower end of the drive shaft 18 is pivotally supported by a bracket 20 fixed to the width direction moving frame 2 via a bearing 21, and the upper end is pivotally supported by a housing 22 fixed to the frame 2 via a bearing 23. The lower end of the drive shaft 24 is connected by a coupling 25.

A bevel gear 27 is mounted in a gear box 26 at the upper end of the drive shaft 24, and is meshed with a bevel gear 29 fitted to a drive shaft 28 slidably in the axial direction via a slide key or the like.
The drive shaft 28 is configured to rotate at a rotational speed that is synchronized with the traveling speed of the box-making base paper (cardboard sheet) by a mechanism not shown. Therefore, if the drive shaft 28 is rotated, the bevel gear 29, the bevel gear 27, the drive shaft 24, the coupling 25, the drive shaft 18, the bevel gear 19, the bevel gear 17, the shaft.
The sizing roll 4 can be rotated via 15.

Next, the vertical movement of the elevating frame 7 will be described. A female screw is fixed to a part of the elevating frame 7, and the female screw is screwed with a vertically moving screw rod 30 installed parallel to the drive shaft 18. ing. The lower end of the vertical moving screw rod 30 is a bracket fixed to the width direction moving frame 2.
The shaft 20 is rotatably supported by a bearing 31 and a movement amount detecting encoder 32 is further connected to the lowermost end. Further, the upper end of the vertical moving screw rod 30 is attached to the frame 2 by a bracket 33.
With the shaft of the geared motor 34 with a brake fixed via
They are connected by a coupling 35. Therefore, by driving the geared motor 34 with a brake, the elevating frame 7 can be moved up and down by a predetermined amount via the coupling 35 and the screw rod 30 for vertical movement. It can be detected by the rotation of.
In the figure, 36 is a limit switch for setting the upper and lower limit positions of the elevating frame 7, and by installing a plurality of upper and lower frames, it can function as a safety measure against malfunction (overrun, etc.). .

A pair (two) of the seat carriages 6 and 6 ′ located above and below the gluing roll 4 are axially mounted via a bearing 39 to a pin 38 fixed to the arm 37 substantially in the center. The arm 37 is swingably attached to the elevating frame 7 by a pin 40 protruding from the elevating frame 7, and the other end of the arm 37 is connected to a cylinder 41 swingably attached to the elevating frame 7. Therefore, when each cylinder 41 is operated, the seat carriages 6 and 6'can be swung to engage and disengage from the sizing roll 4. Reference numeral 42 in the drawing is a stopper for setting the position of the arm 37, and finely adjusts the contact pressure when the corrugated cardboard sheet 1 is held by adjusting the engagement state of the glue roll 4 and the receiving wheels 6 and 6 '. You can do it.

The setting will be briefly described below. FIG. 1 and FIG. 2 show the setting for inner attachment (paste transfer to the upper surface of the corrugated cardboard sheet). First, the geared motor 34 with a brake is driven to move the elevating frame 7 to a predetermined upper position. After adjusting the clearance between the receiving wheel 6'and the sizing roll 4 by moving it up to
Is rotated to convey the glued roll 4 to a predetermined position corresponding to the glued hanging piece of the corrugated board sheet 1. In this case, the receiving wheel 6 located above is set with an appropriate gap between it and the gluing roll 4 by the pushing operation of the cylinder 41, as shown in FIG. The glue supply applicator 5 is attached to a part of the elevating frame 7 and is engaged with the glue roll 4 by a known method. On the other hand, the glue circulation system is the same as that described in the above section (prior art).

Next, FIG. 3 and FIG. 5 are the settings for external attachment (paste transfer to the lower surface of the corrugated cardboard sheet). First, the geared motor 34 with a brake is driven to lower the elevating frame 7 to a predetermined lower position and receive the vehicle. After adjusting the gap between 6 and the sizing roll 4,
By rotating the width direction moving screw rod 12, the glue roll 4 is conveyed to a predetermined position corresponding to the glue droop of the next-order cardboard sheet. In this case, an appropriate gap is set between the receiving wheel 6'located below and the sizing roll 4 by the pushing operation of the cylinder 41, as shown in FIG. The glue supply applicator 5 has a directional property and is set to move to the position shown on the elevating frame 7, but is engaged with the gluing roll 4
Since the common one is used regardless of the setting change of the inner sticking and the outer sticking, it is only necessary to move and install the same glue applicator 5 as well.

Therefore, it is not necessary to change the connection of the glue circulation hoses 43 ', 43 "as shown in Fig. 6 and Fig. 7. In the above configuration, all the features except the transfer of the glue supply applicator 5 can be automatically performed. Further, because of the structure, the sizing roll 4 can have a large diameter, and cleaning can be omitted, and the sizing roll 4 drive method, the lifting frame 7 moving means,
As the control method and the like, various methods other than the example are conceivable.

(Effects of the Invention) The present invention is configured as described in detail above, and since the adhesive supply applicator can share one set, only the mounting position is changed when changing the setting of the inner sticking and the outer sticking. No need to change the glue circulation hose again. Further, since the glued rolls are commonly used for both inner and outer sticking, cleaning is not required when changing the setting of inner and outer sticks. Further, since only one sizing roll is provided, a roll having a large diameter can be installed in terms of space.
Therefore, the amount of glue scattered due to the rotation of the roll is reduced, and even if the traveling speed of the corrugated cardboard sheet is increased, this does not cause a serious problem. Therefore, according to the present invention, it is possible to significantly reduce the time required for changing the settings of inner and outer sticking and improve the operation rate of the entire apparatus, which can contribute to the improvement of productivity.

[Brief description of drawings]

FIG. 1 is a side sectional view of a gluing device for a box making machine showing an embodiment of the present invention when setting for inner sticking, FIG. 2 is a front sectional view of the same, and FIG. 3 is a side cross section when setting for outer sticking. 4 and 5 are detailed views of the main part in FIG. 1 when the inner pasting is set, FIG. 5 is a detailed view of the main part in FIG. 3 when the outer pasting is set, and FIG. 6 is the conventional box making machine. A side view of the gluing device at the time of setting for inner sticking, No. 7
The figure is a side view of the same setting for outside sticking, Fig. 8 (a) (b)
(C) and (D) are explanatory views of general corrugated cardboard box formation, No. 9
FIG. 9A is a plan view for sequentially explaining the shape of the corrugated board sheet when the same box is formed, and FIG. 9B is a side view showing an example of a conventional corrugated board box making machine. Description of the main parts of the figure 1 ... Corrugated cardboard sheet for boxes 2 ... Frame for moving in the width direction 3 ... Glue 4 ... Roll with glue 5 ... Applicator for feeding glue 6, 6 '... Sheet carrier, 7 ... Lifting frame 8 ... Slide bearing 9 ... Support shaft, 10 ... Cam follower 11 ... Guide plate 12 ... Width direction moving screw rod 16 ... Gear box, 17 ... Bevel gear 18 ... Drive shaft , 19 …… bevel gear 24 …… drive shaft, 25 …… coupling 26 …… gearbox, 27 …… bevel gear 28 …… drive shaft, 29 …… bevel gear 30 …… vertical moving screw rod, 34… … Motor 37 …… Arm, 38 …… Pin 40 …… Pin, 41 …… Cylinder

Claims (1)

[Scope of utility model registration request] 1. A gluing device for a box making machine, which transfers and pastes glue to a glued hanging piece made on a corrugated board sheet for a box conveyed from the previous step, in a device frame movable in the width direction of the corrugated board sheet. An elevating frame which is arranged on one side and which is capable of moving up and down by a predetermined amount by engaging with a drive shaft supported by the apparatus frame; Adhesive that is attached to a part of the lifting frame and that changes the mounting position before and after the corrugating sheet in the traveling direction of the corrugating sheet at the vertical movement position of the corrugating sheet when the cardboard sheet is externally and internally stuck. A supply applicator, a pair of upper and lower arms swingably attached to the upper and lower positions of the elevating frame, respectively, are rotatably supported, and a pair of sheets which can be brought into and out of contact with the upper and lower surfaces of the gluing roll, respectively. It is characterized by comprising a rotation receiving device for rotating the sizing roll in one direction when the sizing roll is in a raised position of the vehicle and for rotating the sizing roll in the lowered position of the sizing roll. Adhesive device for box making machine.