JPH0611178Y2 - Adhesive device for bottom wall of box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a gluing device for a bottom wall of a box.

(Prior Art) FIG. 8 and FIG.
There is something like the one shown in the figure. This is a bottom wall 13,14,15,16 of the box material 1 by the conveyor 23 for the box material 1 which has been expanded and prefolded so that it can be assembled into a box.
And the bottom wall 13, 14, 15, 16 during the transfer.
Is folded back on the side walls 2, 3, 4, 5 of the box body material 1 and is laid on the glued portions 17, 18 of the folded bottom walls 14, 16 by the drive shaft 34. Glue is applied by a gluing roller 33 that is driven to rotate in synchronization with the bottom wall 14, 1
The vicinity of the glued portions 17, 18 of 6 is pressed from above by a rod-shaped pressing member 53. Then, the pressing member 53
Is fixed on the fixed side. In addition, after the glue is applied to the side walls 2 and 5 on both sides of the box material 1, the side walls 2 and 5 on both sides are folded back on the side walls 3 and 4 by the folding lines 6 and 8 in the next step. Can be folded.

(Problems to be solved by the invention) In the above-mentioned conventional one, the pressing member presses the folded bottom wall to stand up due to its restoring force, thereby facilitating the application of the glue to the glued portion. And stabilization. However, since the pressing member is fixed on the fixed side, if the bottom wall to be erected is pressed firmly to press it sufficiently, the pressing member becomes a large resistance to the transfer of the box material and the box material is The sliding movement, the next side wall folding process,
It becomes difficult to correctly fold the side wall at the position of the fold line, which may adversely affect the product.

Therefore, the present invention is capable of sufficiently pressing the bottom wall when pasting the box material to the bottom wall, and the pressing member does not become a resistance,
An object of the present invention is to provide a gluing device for a bottom wall of a box body in which the box body material does not shift.

(Means for Solving the Problems) The technical means taken by the present invention to achieve the above-mentioned object is a box material which is expanded and pre-folded so as to be assembled in the box. Is transferred by the conveyor with the bottom wall of the box material ahead, and during the transfer, the bottom wall is folded back and folded over one side wall of the box material, and the box material is transferred above the conveyor. The outer peripheral surface of the gluing roller, which is fixed concentrically to a drive shaft arranged so as to be orthogonal to the direction and is driven to rotate in the same direction as the box material transfer direction in synchronization with the conveyor by this drive shaft, is folded. The gluing portion of the bottom wall is brought into contact with the gluing portion, and the glue on the outer peripheral surface of the gluing roller is applied to the gluing portion. At this time, the vicinity of the gluing portion of the bottom wall is pressed from above by a pressing member. In the gluing device for the bottom wall of the box, the pressing member is a roller having substantially the same diameter as the gluing roller. To configure
It is located concentrically fixed on the drive shaft.

(Operation) The unfolded box material 1 according to the present invention is transferred by the conveyor 23 with the bottom walls 13, 14, 15, 16 of the box material 1 in advance, and during the transfer, the bottom walls 13, 14, Fold back 15 and 16 to the rear side and fold them on the side walls 2, 3, 4, and 5 of the box material 1. Then, the glue is applied to the glued portions 17 and 18 of the folded bottom walls 14 and 16 by the glued roller 33 that is rotated by the drive shaft 34 in synchronization with the conveyor 23. At that time, the vicinity of the glued portions 17, 18 of the bottom walls 14, 16 is pressed from above by a roller 46 as a pressing member. The roller 46 is fixed on the drive shaft 34 and is rotationally driven in synchronization with the transfer of the assembly box 1. Thereby, the presser roller 46
Sufficiently presses the bottom walls 14 and 16 and does not significantly resist the transfer of the assembly box 1.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 7, reference numeral 1 is a flattened box-shaped material made of paper, which has been folded in advance so that it can be assembled into the box. That is, in the box material 1, four side walls 2, 3, 4, 5 constituting the side surface are arranged side by side with the folding lines 6, 7, 8 interposed therebetween, and each side wall 2,
Bottom wall 13,14,1 with folding lines 9,10,11,12 on the same side of 3,4,5
5,16 are lined up. Then, the glued portion 1 is attached to the bottom walls 14 and 16.
7,18 are connected in series via the folding lines 19,20.

In FIG. 4, reference numeral 21 denotes a box making device, which is used to attach the predetermined parts of the unfolded box material 1 to make the box material 1 a product. The box making device 21 includes a paper feeding unit 22, a belt conveyor 23, a glue applying unit 24, a folding unit 25, a shaping unit 26, a pressing unit 27, a discharge table 28, and the like. Explaining the assembling process of the box material 1, the box material 1 has its bottom wall 1
3, 14, 15, 16 are sent out one by one from the paper feeding section 22 sequentially, and are sandwiched by the upper and lower belts 30, 31 of the conveyor 23 driven by the motor 29 and transferred to the discharge table 28 side. During the transfer, each bottom wall 13, 14, between the paper feeding unit 22 and the glue applying unit 24,
15, 16 are folded back at the folding lines 9, 10, 11, 12 and folded on the corresponding side walls 2, 3, 4, 5 and glued parts 17, 1 of the bottom walls 14, 16
8 is folded on the bottom walls 14 and 16 by the folding lines 10 and 12. Then, the glue application section 24 applies glue to the glued sections 17 and 18 of the bottom walls 14 and 16, the upper surface of the side edge 2a of the side wall 2 and the lower surface of the glued section 5a of the side wall 5. After that, at the folding portion 25, the side wall 5 is folded back along the folding line 8 and folded over the side walls 3 and 4, and then the side wall 2 is folded over over the side wall 3 folded back along the folding line 6. And box material 1
After that, the shape is adjusted by the shaping unit 26, the pressure is applied by the roller by the pressure unit 27, the respective parts are bonded, and the result is discharged to the discharge table 28.

In FIGS. 1 to 3, 32 is the bottom walls 14, 16 of the box material 1.
2 shows a gluing device for gluing to the gluing parts 17 and 18, and this gluing device 32 is arranged in the gluing part 24 of the box making device 21. The gluing device 32 has a pair of gluing rollers 33, 33 for gluing onto the gluing portions 17, 18 of the bottom walls 14, 16, and the glue roller 33 has a glue (not shown) on the upper portion thereof. The tank is located. The gluing roller 33 is fixed on a drive shaft 34 which is arranged above the conveyor 23 and orthogonal to the transfer direction of the box material 1. Both ends of the drive shaft 34 are provided on both side walls 3 of the box making device 21.
It is rotatably attached to an elevator 36 provided at 5,35 and is rotationally driven in the same direction as the transfer direction of the box material 1 in synchronization with the conveyor 23 by a motor 29 via a belt winding transmission mechanism (not shown). It

The elevator 36 is mounted on the side wall of the box manufacturing device 21 through the guide groove 37.
A guide plate 38 fixed to 35 has an elevating plate 39 slidably provided in the vertical direction, and both ends of a drive shaft 34 are rotatably supported by the elevating plate 39.

Further, a screw shaft 44 is arranged in the up-down direction on the outer side of the elevating plate 39, an upper part of the screw shaft 44 is rotatably supported by the elevating plate 39, and a lower part is fixed to a side wall 35 of the box making device 21. 45 screwed together.

Then, by rotating the handle 41 at one end of the connecting rod 40 that passes through the elevating part 39 and is bridged between the elevating plates 39, and rotate the screw shaft 44 via the bevel gears 42 and 43 that mesh with each other. The lift plate 39 is moved up and down.

A pressing roller 46 as a pressing member is provided on the drive shaft 34 so as to be slidable in the axial direction, and the bottom walls 14 and 16 of the box material 1 are provided.
The purpose of this is to prevent the bottom walls 14 and 16 from standing up due to their restoring force when the glue is applied to the glued portions 17 and 18. The pressing roller 46 has substantially the same diameter as the sizing roller 33,
Further, a rubber material 47 such as neoprene rubber is provided on the entire outer circumference. Further, a boss portion 48 is formed at the center of the pressing roller 46, and a through hole 49 having substantially the same diameter as the drive shaft 34 is formed at the center thereof. Further, the pressing roller 46 is divided into two along the diameter thereof, one of the two divided bosses 48a is formed with a bolt hole 51 having a counterbore 50, and the other boss 48b is formed with a bolt hole 51. A screw hole 52 corresponding to 51 is formed. Then, the drive shaft 34 has a through hole 49.
And the bolt is inserted into the bolt hole 51 and screwed into the screw hole 52, whereby the pressing roller 46 is detachably fixed to the drive shaft 34.

In the above structure, since the pressing roller 46 is movable in the axial direction with respect to the drive shaft 34, the position for pressing the bottom walls 14 and 16 can be set arbitrarily. At that time, the glue roller 33 is the drive shaft.
By being movable in the axial direction with respect to 34, it is possible to correspond to the box-shaped material 1 having different sizes. Also, the sizing roller 33
Since the pressing roller 46 can be moved up and down by the elevator 36, the box material 1 having different thicknesses can be accommodated. Further, since the roller 46 is fixed to the drive shaft 34, the box material 1
Is driven to rotate in synchronism with the transfer of the
46 can sufficiently press the bottom walls 14 and 16, and does not resist the transfer of the box material 1, and the box material 1 can move while being glued to the bottom walls 14 and 16. Absent.

(Effects of the Invention) According to the present invention, the box material which has been unfolded and provided with the folding lines in advance so that it can be assembled into the box is transferred by the conveyor with the bottom wall of the box material preceding. During that transfer,
The bottom wall is folded back to be folded back on one side wall of the box material, and is concentrically fixed to a drive shaft arranged above the conveyor so as to be orthogonal to the transfer direction of the box material, and this drive shaft is The outer peripheral surface of the gluing roller, which is driven to rotate in the same direction as the box material transfer direction by the conveyor, is brought into contact with the glued portion of the folded bottom wall, and the glued roller is attached to the glued portion. In the gluing device for the bottom wall of the box, wherein the glue on the outer peripheral surface is applied, and the vicinity of the gluing portion of the bottom wall is pressed from above by the pushing member, the pressing member is substantially the same as the gluing roller. Since it is configured as a roller having a diameter and is concentrically fixed on the drive shaft, the roller as a pressing member is rotationally driven in synchronization with the transfer of the box material, so that it is glued to the bottom wall of the box material. At this time, the roller can sufficiently press the bottom wall and has resistance against the transfer of the box material. Narazu are transported smoothly without the box body material moves shift. Also, since the roller is fixed to the drive shaft, there is no need for a device for mounting the roller,
It is economical.

[Brief description of drawings]

1 to 7 show an embodiment of the present invention.
FIG. 2 is a plan view of the main part, FIG. 2 is a view taken along the line AA of FIG.
FIG. 3 is an external view of a main part, FIG. 4 is a schematic plan view of a box making device, FIG. 5 is a front view of a roller, FIG. 6 is a sectional side view of the same, and FIG. 7 is an exploded view of an assembly box. FIG. 8 and FIG. 9 show a conventional example, FIG. 8 is a plan view of a main part, and FIG. 9 is a side view of the same. 1 ... Box material, 13, 14, 15, 16 ... Bottom wall, 17, 18 ... Glued part, 21
… Box making device, 23… Conveyor, 32… Gluing device, 33… Gluing roller, 34… Drive shaft, 46… Holding roller.

Claims (1)

[Scope of utility model registration request] 1. A box material preliminarily provided with folding lines so as to be assembled into a box body is transferred by a conveyor with the bottom wall of the box material preceding the bottom material, and the bottom is transferred during the transfer. The wall is folded back and folded over one side wall of the box material, and is concentrically fixed to a drive shaft arranged above the conveyor so as to be orthogonal to the transfer direction of the box material and by this drive shaft. The glue roller is driven to rotate in the same direction as the box material transfer direction in synchronism with the conveyor, and the outer peripheral surface of the glue roller is brought into contact with the glued portion of the folded bottom wall. In the gluing device for the bottom wall of the box, wherein the gluing of the surface is applied and the vicinity of the gluing portion of the bottom wall is pressed from above by the pressing member, the pressing member having substantially the same diameter as the gluing roller. Adhesive on the bottom wall of the box characterized by being configured as a roller and fixed concentrically on the drive shaft apparatus.