JPH0442243B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a box in which a side wall is formed by bending and abutting two upper and lower flaps a ₁ and a ₂ . This invention relates to a method and apparatus for sealing a box by pasting a piece of tape b across the abutting portion of a 1 _{and a 2 .}

[Conventional technology]

Conventionally, when sealing a box of the above type with a single piece of tape, as shown in Fig. 2, the boxes are folded flat before being opened, and the boxes are sequentially opened while being transported. After passing through the state shown in Figure 2, upper and lower 2
A method is adopted in which two flaps a ₁ and a ₂ are bent and butted together, and then a piece of tape is pasted so as to span the butted portion of both flaps a ₁ and a ₂ .

[Problem that the invention seeks to solve]

In this way, the upper and lower two flaps a ₁ , a ₂
Since the tape is fed out after the tape is bent and butted together, the box must be transported at least as much as the tape is fed out. Therefore, there is a drawback that the conveyance line becomes longer.

In addition, when this method is adopted, the tape is pasted after the two upper and lower flaps a ₁ and a ₂ are bent and butted together, so the tape must be placed vertically, that is, in an upright position. If you are unable to unwind a long piece of tape properly, and if you mess it up, the tape will meander, and it may not stick to the specified position of the two upper and lower flaps a ₁ and a ₂ that are abutted against each other, or it may not stick to the specified position. Even if it is pasted, it has the disadvantage that many wrinkles are formed.

[Means for solving problems]

The present invention was devised to eliminate such drawbacks, and in this method, the sealing tape b is positioned horizontally and half of its width is held approximately horizontally. Paste it on the upper flap _A1 , then bend and butt the upper flap _A1 to which tape b is pasted and the lower flap _a2 to which tape b is not pasted, and then paste tape b. Attach the remaining half of the width in the lower flap _A2 .

Furthermore, the device of the present invention bends and butts the upper and lower two flaps a ₁ and a ₂ on the feeding line of the tape b, thereby bending the upper flap a ₁ of the box that forms the side wall into a substantially horizontal position. receiving roller 1 held in
, and in front of the receiving roller 1 are provided bending members 3 and 4 for bending the two upper and lower flaps a ₁ and a ₂ , and the two upper and lower flaps a ₁ and a ₂ formed by bending the tape b. A pressing member 6 that presses against the side is arranged.

[Effect]

In the method of the present invention, one piece of sealing tape b is first fixed to the upper flap _a1 before bending, which is held in a substantially horizontal position, although it is only half the width; The tape b is oriented horizontally so that it does not easily meander.

In addition, when using the device of the present invention, after pasting half the width of the sealing tape b to the upper flap a ₁ held almost horizontally, the two upper and lower flaps a ₁ and a ₂ are attached. Since it is possible to bend and butt them together, it is possible to create two upper and lower flaps from the state shown in Figure 2.
There is no need for a box transport process for feeding out tape b after bending a ₁ and a ₂ .

〔Example〕

Embodiments of the present invention will be described based on the accompanying drawings.

The box A, which forms the side walls by folding the upper and lower two flaps a ₁ and a ₂ from the fold lines on the left and right sides of the box and butting them together, is transported and opened to the state shown in Figure 2. It is further fed onto the feeding line of tape b, and is fed out horizontally to the outer end side of the upper flap a ₁ of the two upper and lower flaps a ₁ and a ₂ that are held almost horizontally. Attach tape b to half the width [Figure 1 a].

In order to hold _the upper _flap a ₁ in a substantially horizontal position, as shown in FIG. It is a good idea to accept it. In this way, the unstable flap _a1 is supported by the receiving roller 1, and the tape b can be applied under stable conditions. After tape b is applied, the third
As shown in the figure, it is best to press this top with a press roller 2 to ensure that the tape b does not peel off.

It is preferable that the tape b be wound into a roll as shown by _b0 in FIG. 1, and then be affixed to the flap _a1 while being sequentially rolled out and cut into predetermined dimensions. In this way, a series of sealing operations including subsequent operations can be carried out continuously and efficiently.

Next, as shown in FIG. 1b, the upper flap _a1 to which the tape b is attached and the lower flap _a2 to which the tape b is not attached are bent from each fold line. In this case, the timing for folding the two upper and lower flaps a ₁ and a ₂ from the crease line is as follows:
Make sure that the lower flap _A2 is bent first. In order to bend the two upper and lower flaps a ₁ and a ₂ from the fold line, in the embodiment, two upper and lower folding members 3 and 4 are used, and both folding members 3 and 4 are connected to the shafts 3a and 4.
An example is illustrated in which the rotation is performed using a as a fulcrum. Note that if the inner flaps a ₃ and a ₄ are coated with, for example, hot melt adhesive 5 before the double-folding members 3 and 4 operate, the upper and lower two flaps a ₁ and a ₂ will be Even if the flaps a ₃ and a ₄ are temporarily glued and the bending members 3 and 4 are separated, the flaps a ₁ and a ₂
never opens his mouth.

At the moment when the two upper and lower flaps a ₁ and a ₂ are bent as shown in Fig. 4, the tape is applied to both the folded flaps a ₁ and a ₂ by the pressing member 6 located on the side thereof. Press b. Then, the remaining half of the tape b in the width direction is attached to the lower flap a ₂ , and as shown in Figure 1 c, the two upper and lower flaps a ₁ and a ₂ are brought together to form a side wall. A box of this type can be sealed with one piece of tape b.

Note that the tape b is longer than the length of the two upper and lower flaps a ₁ and a ₂ , and its two remaining ends b' and b' are connected to the first flap.
If it is attached to the side wall of the box as shown in Figure d, the seal will be more complete.

This sealing operation may be performed separately on the left and right sides of the box, that is, on both the left and right sides in the transport direction of the box, but it is preferably performed on both sides simultaneously as shown in FIG. In this way, the efficiency of sealing the box can be improved.

Next, an embodiment of the sealing device according to the present invention will be described based on FIGS. 6 to 12 of the drawings.

A receiving roller 1 is provided horizontally on the flap passing line on the upper side of the conveyance path A' of the box A, and a presser roller 2 is provided horizontally above the receiving roller 1 so as to be close to the receiving roller 1 so as to be almost in contact with the receiving roller 1. The flap _a1 of the box A, which has been expanded as shown in FIG. 2, passes between the receiving roller 1 and the presser roller 2, as shown in FIG. While being held in place, a tape b is pasted to the outer side of the tape by half its width (FIG. 1a), and the presser roller 2 presses the top of the tape b. The presser roller 2 is attached to the tip of a lever 8 (Figs. 6 to 8) that swings about a shaft 7, and the presser roller 2 is held by a spring 9 provided at the other end.
so that a force is constantly applied downwardly, that is, to pressing the flap _a1 .

On the upper front side, as shown in FIGS. 6 and 7, two members 3, 3 for bending the upper flap _a1 are provided at the front and rear. Both bending members 3, 3 are fixed to one shaft 10 in the front-rear direction parallel to the transport direction of the box A. When the shaft 10 rotates clockwise in the right half of FIG. 9, the double-folding members 3, 3 fixed thereto rotate, and the horizontal upper flap a to which the tape b is attached rotates. ₁ as shown in Figure 1b and the right half of Figure 9. Various means can be considered for rotating the shaft 10 as described above, but in the embodiment, as will be described later, the upper flaps a ₁ and a ₁ on both the left and right sides are bent at the same time. , the shaft 10 is rotated by one cylinder 11. That is, a lever 13 is fixed to a shaft 12 provided in the width direction above the conveyance path A' of the box A, and the tip of the lever 13 is pivotally connected to the tip of the rod of the cylinder 11. The tip of another lever 14 and the rear bending member 3 are connected by a connecting rod 15, and when the cylinder 11 is actuated, the shaft 12 is rotated via the lever 13, and in conjunction with the rotation, the lever 14 , the rear bending member 3 is rotated via a connecting rod 15. Therefore, when the rear bending member 3 rotates, the shaft 10 to which it is attached also rotates.
The front and rear bending members 3 fixed to the shaft 10 also rotate. In this way, the two front and rear bending members 3, 3 rotate simultaneously, and as a result, the horizontal upper flap _a1 to which the tape b is attached is moved to the right half of Figs. 1b and 9. It is bent as shown.

Below the two bending members 3 and 3, there is a 9th
As shown in the figure, a member 4 for bending the lower flap _A2 is provided. The bending member 4 is assumed to rotate about the shaft 16 from the position indicated by the dotted line in FIG. 9 to the position indicated by the chain line in the same figure. The timing of its operation is such that it rotates before the upper bending member 3.
In this way, the reason why the operation timings of the upper bending member 3 and the lower bending member 4 are different is that the upper and lower two flaps a ₁ ,
This is to prevent the lower flap A ₂ from catching the remaining half of the tape B attached to the upper flap A ₁ when A ₂ is bent, thereby preventing it from being stuck in an odd place. The horizontal flap _a2 on the lower side is bent by this rotation as shown in FIGS. 1b and 9. This bending member 4 is the upper bending member 3
It is also possible to provide two flaps at the front and rear in the same way as above, but for reasons such as the fact that tape b is not pasted on the lower flap _a2 , it is necessary to install one that is long in the front and rear direction parallel to the conveyance path A' of box A. You can also. In this way,
While transporting box A continuously, lower flap a ₂
It is convenient because it can be bent.

Upper and lower two flaps _a1 , _a2 bending members 3, 4
As shown in FIG. 10, a pressing member 6 is provided on the side. As shown in FIG. 11, this pressing member 6 extends inward from the side of the transport path A' of the box A, and is thereby bent as shown in FIGS. 1b and 4. Two upper and lower flaps a ₁ , a ₂
Tape b is pressed against. Therefore, the remaining half of the tape b in the width direction is attached to the lower flap _a2 as shown in Fig. 1c, and the two upper and lower flaps _a1 and _a2 are brought together to form a side wall. A box of this type can be sealed with one piece of tape b. In moving the pressing member 6 forward and backward, in the embodiment, as shown in FIG.
A case is illustrated in which a platform 18 is placed on the rails 17, 17, a pressing member 6 is attached to the platform 18, and the platform 18 is run on the rails 17, 17, but the means are not limited to this. For example, the pressing member 6 may be attached to the tip of a rod of a cylinder (not shown), and the pressing member 6 may be moved forward or backward by the operation of the cylinder. In the embodiment, as shown in FIG. 10, the pressing member 6 is attached to the tip of the L-shaped lever 19, and the lever 19 is rotated about the shaft 21 by the cylinder 20, so that the platform 18 is moved to the rail 17. , 17. In addition, in the embodiment, as shown in FIG.
As tape 8 advances, both remaining ends b' and b' of tape b are hooked and turned to the side wall of box A (Fig. 1), and pressed there. In this way, the box A can be more completely sealed with the tape b.

This device is installed at a location indicated by P in FIG. 12, and the boxes A are transported by driving an endless chain 23 in the direction of the arrow in the figure. That is, the chain 23 is provided with a push piece 24, and the box A is conveyed by pushing the box A on the conveyance path A' with the push piece 24.

In addition, in the above explanation, the above-mentioned device is arranged on one side of the conveyance path A' of the box A, but the receiving roller 1, presser roller 2, etc. are arranged on the conveyance path A' as shown in FIGS. It is best to provide them symmetrically on both sides of '. In this way, a series of operations such as attaching tape b to the upper flap a ₁ , bending the upper and lower two flaps a ₁ and a ₂ , and sealing with tape b on both the left and right sides of box A can be efficiently carried out. can do well.

In Fig. 12, 25 is a magazine, inside which is a sheet-like material before being expanded to the state shown in Fig. 2.
If a large number of A ₀ are stacked up and one by one is taken out from the bottom using the suction cup 26, the sheets are expanded as shown in FIG. Work can be done continuously.

Note that the tape in the above case refers to both an adhesive tape coated with adhesive glue on the back side and a tape coated with quick-drying glue, and the box can be sealed using either of them. There is no difference. However, when using the latter tape,
When the tape is fed out, it is necessary to apply water to the back side of the tape using a water application roller or the like.

〔Effect of the invention〕

According to the method of the present invention, one piece of sealing tape b is first fixed on the upper flap a ₁ before bending, which is held in a substantially horizontal position, although it is only half its width; Since the tape b is oriented horizontally so that it is difficult to meander, the tape b is not only stuck in place, but also prevents wrinkles, which gives the box a good appearance after sealing. be.

Further, according to the device of the present invention, after the sealing tape b is pasted by half the width on the upper flap a ₁ held almost horizontally, the two upper and lower flaps a ₁ and a ₂ are attached.
Since it is possible to bend and butt the
The step of transporting the box for feeding out the tape b after bending the two upper and lower flaps a ₁ and a ₂ from the state shown in FIG. 2 is no longer necessary, which has the effect of making the apparatus more compact.

[Brief explanation of drawings]

The attached drawings show embodiments of the present invention, and the first
Figures a to d are perspective views showing the method of the present invention in the order of steps, Figure 2 is a perspective view of the expanded box before pasting the tape, and Figures 3 to 5 are Figures 1a and 5. FIGS. 6 to 11 are enlarged side views of a part of the box showing the flap portion in states b and c, and show the device of the present invention, with FIG. 6 being a front view and FIG. 7 being a plan view thereof. figure,
Figures 8 and 9 are side views of the tape sticking device and flap folding device, which are part of the same, and Figure 10 is a side view of the part that presses the tape against the two folded upper and lower flaps. , Figure 11 is its side view,
FIG. 12 is an elevational view of the entire machine including the device of the invention. 1...Receiving roller, 2...Press roller, 3, 4
... Flap bending member, 6... Pressing member, A...
...Box, A′...Conveyance path, a ₁ ...Upper flap, a ₂
...lower flap, b...tape.

Claims (1)

[Scope of Claims] 1. The upper flap a 1 of the box is formed into a side wall by bending the upper and lower two flaps a ₁ and a ₂ and abutting them against each other, and holds the upper flap a ₁ in _a substantially horizontal state. A piece of tape b kept horizontally is pasted to half the width, and then the flap _a1 to which tape b is pasted and the lower flap _a2 to which tape b is not pasted. A method for sealing a box with tape, which is characterized by bending each part, butting them together, and pasting the remaining half of the tape b in the width direction to the lower flap _a2 . 2. A method for sealing a box with tape according to claim 1, wherein the above operation is performed simultaneously on both the left and right sides of the box. 3. On the feeding line of the tape b, a receiving roller 1 is installed to hold the upper flap a ₁ of the box in a substantially horizontal state, which forms the side wall by bending the upper and lower _two flaps a ₁ and a 2 and butting them together. A bending member 3, 4 for bending the upper and lower two flaps a ₁ and a ₂ is provided in front of the receiving roller 1, and a tape is attached to the folded upper and lower two flaps a ₁ and a ₂ . A box sealing device using tape, characterized in that a pressing member 6 for pressing b is arranged. 4. Sealing a box with the tape set forth in claim 3, in which a receiving roller 1, folding members 3, 4, and a pressing member 6 are provided symmetrically on both the left and right sides of the transport path A' of the box A. Device.