JP2002293308A - Sealing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a tape adhering workability to a flap, reduce the number of sealing steps and improve a sealing productivity. SOLUTION: There is provided a sealing apparatus 10 comprised of a tape adhering device 13 in which an inner surface of a flap 2 is supported while the flap 2 is being extended from one side surface of an envelope body 1 and a part in a width direction of an adhering tape 3 supplied by a tape supplying device 12 is adhered to an outer surface of the flap 2; and a flap adhering device 14 for folding the flap 2 having the adhering tape 3 adhered thereto against one side surface of the envelope body 1 and adhering a residual part in the width direction of the adhering tape 3 against the other side surface of the envelope body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a sealing device.

[0002]

2. Description of the Related Art Japanese Patent No. 2896735 discloses a conventional sealing device in which a flap extending from one side of an envelope body is attached to the other side of the envelope body with an adhesive tape. In this prior art, the flap is bent so as to rise substantially at a right angle to one side of the envelope body, and a half of the width of the adhesive tape is stuck on the outer surface of the raised flap. The attached flap is further bent at a right angle, and the remaining in the width direction of the adhesive tape is attached to the other side of the envelope body.

[0003]

The prior art has the following problems. After the flap is once bent to the rising state, adhesive tape is attached to the flap. Even if the flap in the rising state is backed up by the flap receiving stand at the time of sticking the adhesive tape, the flap can be received by the spring back. The posture is likely to be unstable when separated from the table, and the tape attaching workability is poor.

[0004] Before and after the application of the adhesive tape to the flap, a step of bending the flap twice is required, the number of sealing steps is increased, and the productivity of sealing is poor.

An object of the present invention is to improve the workability of attaching a tape to a flap and to improve the productivity of sealing by reducing the number of sealing steps.

[0006]

According to the first aspect of the present invention, there is provided a sealing device for attaching a flap extending from one side of an envelope body to the other side of the envelope body with an adhesive tape. A tape supply device to be supplied and a part in the width direction of the adhesive tape supplied by the tape supply device, supporting the inner surface of the flap while the flap is extended from one side surface of the envelope body to the same surface. A tape sticking device for sticking the adhesive tape to the outer side surface thereof, a flap to which the adhesive tape is stuck, and a flap to which the remaining portion of the adhesive tape in the width direction is stuck to the other side surface of the envelope body. And a sticking device.

According to a second aspect of the present invention, in the first aspect of the present invention, the tape affixing device further includes a tape holder for sucking and holding the adhesive tape, and a tape holder for a tape receiving position and a flap from a tape supply device. And a flap receiving portion for supporting the inner surface of the flap at the tape application position by moving the tape holder to the flap at the tape application position. It was done.

According to a third aspect of the present invention, in the first or second aspect, the flap sticking device further comprises an envelope holding device for holding the envelope body, and an outer surface of the flap to which the adhesive tape is stuck. A folding device that pushes the flap from one side to the inner surface of the flap until the inner surface of the flap is pressed against the other side of the envelope body.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the folding device further includes an elevating device which moves up and down with respect to the envelope body held by the envelope holding device, and A pressing device that contacts the outer side surface, and a swing device that swings the pressing device around a pivot point with the lifting device,
The flap is bent substantially at right angles to one side of the envelope body by the lowering operation of the presser by the elevating device, and further bent to a position where the flap is overlapped on the other side of the envelope body by the swinging operation of the presser by the swinging device. It is made possible.

According to a fifth aspect of the present invention, in the invention of the fourth aspect, the pivot point of the presser is set higher than the level of one side surface of the envelope main body at the lower end of the presser by the elevating device. It was done.

[0011]

According to the first aspect of the present invention, the following operations are provided. Adhesive tape is stuck while the flap is extended from one side of the envelope body on the same surface, and the posture of the flap when sticking the adhesive tape can be stabilized, and tape sticking to the flap Workability can be improved.

The folding of the flap is performed only once when the adhesive tape is stuck to the flap and then the flap is stuck to the other side of the envelope body, thereby reducing the number of sealing steps and increasing the productivity of sealing. Can be improved.

According to the second aspect of the present invention, the following operations are provided. The tape application device is moved by the tape holder
The tape holder is moved from the tape receiving position to the tape attaching position, and the tape holder is pressed against the flap at the tape attaching position. At the tape attaching position, the inner surface of the flap is supported by the flap receiving portion. I have. Therefore, the adhesive tape sucked and held by the tape holder can be securely adhered to the outer surface of the flap.

According to the third aspect of the present invention, the following operations are provided. A flap sticking device, the flap of the envelope main body held by the envelope holding device is bent from the root to one side of the envelope main body by the bending device and stuck on the other side, leaving the opening of the envelope main body. Can be completely sealed.

According to the fourth aspect of the invention, the following operation is provided. The bending device drives the presser that abuts on the outer surface of the flap and allows the flap to be bent by the cooperation of the lifting device and the swinging device, and the bending device can bend the flap with a simple configuration.

According to the fifth aspect of the invention, the following effects are obtained. By setting the pivot point of the presser pivotally supported by the elevating device to be higher than one side of the envelope body, it is possible to reliably start bending the flap from the root to one side of the envelope body.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view showing a tape sticking device of a sealing device, FIG. 2 is a side view of FIG. 1, FIG. 3 is a side view showing a flap sticking device of the sealing device, and FIG. It is a schematic diagram which shows an order.

The sealing device 10 includes one side 1 A of the envelope body 1.
The flap 2 extended from the other side 1B of the envelope body 1
To seal the opening 1 </ b> C of the envelope body 1.

The sealing device 10 has a conveyor 11 that moves the envelope body 1 intermittently. A tape supply device 12 and a tape attaching device 13 are installed in a tape attaching region along the moving path of the conveyor 11, and a flap attaching region. The flap sticking device 14 is installed in the box, and the envelope body 1 held and carried in by the transport pins 11A of the conveyor 11 is sequentially positioned in the tape sticking region and the flap sticking region. Conveyor 1
Envelope body 1 brought into the tape application area by 1
In this case, the contents are thrown in, and the flap 2 is extended from one side surface 1A on the same surface.

(Tape Supply Device 12) (FIG. 1) The tape supply device 12 cuts and supplies the adhesive tape 3 wound in a roll into a fixed length corresponding to the length of the envelope body 1 and the flap 2. . At this time, the tape supply device 12
Can be supplied in a flat state where the curling of the adhesive tape 3 is removed.

(Tape Pasting Apparatus 13) (FIGS. 1 and 2) The tape pasting apparatus 13 keeps the inside of the flap 2 with the flap 2 extending from one side 1A of the envelope body 1 on the same plane. The side surface is supported, and a part of the pressure-sensitive adhesive layer of the pressure-sensitive adhesive layer of the pressure-sensitive adhesive tape 3 supplied by the tape supply device 12 is attached to the outer surface of the flap 2.

More specifically, the tape sticking device 13 comprises a tape holder 2 for holding the adhesive tape 3 by vacuum suction.
A moving device 22 for moving the tape holder 21 between a tape receiving position from the tape supply device 12 and a tape attaching position to the flap 2 and pressing the tape holder 21 against the flap 2 at the tape attaching position; And a flap receiving portion 23 for supporting the inner surface of the flap 2 at the tape attaching position.

The moving device 22 of the tape holder 21 has a slider 26 fitted on a vertically extending guide rail 25 fixed to the gantry 24, and the swing motor 2 fixed to the gantry 24.
7, the pin 26A of the slider 26 is engaged with the elongated hole 28A of the swing lever 28 connected to the output shaft of the tape 7, and the upper end of the tape holder 21 is connected to the lower end of the slider 26 by the hinge 21A. A cam follower 21B provided at an intermediate portion of the tape holder 21 is engaged with a cam groove 29A of the fixed cam 29.

When the swing lever 28 swings up and down by forward and reverse rotation of the swing motor 27, the tape holder 2
Numeral 1 moves the hinge 21A part up and down and reciprocates the cam follower 21B part diagonally along the cam groove 29A of the cam 29 (vertical direction on one side of the cam groove 29A). As a result, the tape is held at the tape receiving position. The vacuum suction surface 30 of the tool 21 is set on a vertical surface along the adhesive tape 3 supplied from the tape supply device 12, and the suction surface 30 of the tape holder 21 is pressed against the flap 2 on the conveyor 11 at the tape application position. Set on a horizontal plane.

At this time, a vacuum supply pipe 31 is connected to the tape holder 21, and beside the tape receiving position,
An air blow 32 for blowing the adhesive tape 3 supplied from the tape supply device 12 onto the suction surface 30 of the tape holder 21.
Is installed. The air blow 32 prevents the pressure-sensitive adhesive tape 3 from curling due to curling, and causes the surface of the pressure-sensitive adhesive tape 3 opposite to the pressure-sensitive adhesive layer to be suctioned to the suction surface 30.

(Flap Pasting Apparatus 14) (FIGS. 3 and 4) The flap pasting apparatus 14 bends the flap 2 to which the adhesive tape 3 has been pasted on one side 1A of the envelope body 1.
The remaining portion in the width direction of the pressure-sensitive adhesive layer of the pressure-sensitive adhesive tape 3 is pressed against the other side surface 1 </ b> B of the envelope main body 1 and attached.

More specifically, the flap attaching device 14 includes an envelope holding device 41 for holding the envelope body 1 and an adhesive tape 3.
Is pushed in from the root 2A to one side 1A of the envelope body 1, and the inner side of the flap 2 is pressed against the other side 1B of the envelope body 1.
And a bending device 42 that bends the sheet.

The folding device 42 is a lifting device 43 that moves up and down with respect to the envelope body 1 held by the envelope holding device 41.
A vertically extending guide rod 45 erected on a gantry 44
A lifting block 46 is fitted to the frame 44, and a long hole 4 of a lifting lever 48 connected to an output shaft of a lifting motor 47 fixed to the gantry 44.
8A is provided with a pin 46A of the lifting block 46 engaged therein. A hinge 49A of a presser 49 is pivotally supported at the lower end of the lifting block 46, and the lower end surface of the presser 49 is
And the adhesive tape 3 attached to the outer surface of the flap 2. In addition, the bending device 42 moves the pressing element 49 to a pivot point (hinge 49A) with the lifting block 46.
As a swing device 50 for swinging around, a swing motor 51 fixed to the elevating block 46 is provided.
A belt 54 is wound around a pulley 52 fixed to the output shaft of the above and a pulley 53 fixed around a hinge 49A of the presser 49, and the presser 49 is oscillated by forward and reverse rotation of the oscillating motor 51.

Thus, the lifting motor 4 of the lifting device 43
The presser 49 is moved up and down by the forward / reverse rotation of 7, and the flap 2 is bent substantially at right angles to one side 1 </ b> A of the envelope body 1 by the lowering operation of the presser 49. By the swinging operation of the pressing element 49, the flap 2 is further bent at a substantially right angle to a position where the flap 2 overlaps the other side surface 1B of the envelope body 1. Here, at the lower end of the presser 49 by the elevating device 43, the pivot point (hinge 49A) of the presser 49 is set higher than the level of one side 1A of the envelope body 1.

At this time, the envelope holding device 41 penetrates the holding rod 55 through the lifting block 46, locks the upper end head 56 of the holding rod 55 on the upper surface of the lifting block 46, and holds the lower holding plate 57 of the holding rod 55. A compression spring 58 is interposed between the lower end surfaces of the lifting block 46. The envelope holding device 41 presses the envelope body 1 against the conveyor 11 by the holding plate 57 of the holding rod 55, and applies a holding force to the envelope body 1 by the spring force of the compression spring 58 which is compressed as the elevating block 46 descends. Increase.

Accordingly, the sealing operation of the envelope body 1 by the sealing device 10 is performed as follows. (1) The envelope body 1 in which the contents are sealed is placed on a conveyor 11 and is carried into a tape attaching area where a tape supply device 12 and a tape attaching device 13 are installed. At this time, the envelope body 1 has the flap 2 extending from one side surface 1A on the same plane.

(2) When the sensor (not shown) detects that the envelope main body 1 has reached the tape application area and is locked, the tape application device 13 executes the tape application operation. As described above, the tape affixing device 13 supports the inner surface of the flap 2 by placing it on the flap receiving portion 23 with the flap 2 extended from one side 1A of the envelope body 1 on the same surface. Then, the tape holder 21 is moved from the tape receiving position from the tape supply device 12 to the tape affixing position to the flap 2 by the moving device 22, and the adhesive layer of the adhesive tape 3 of a fixed length supplied by the tape supply device 12 is moved. A part of the width direction is applied to the outer surface of the flap 2 by pressing.

(3) When it is detected by a sensor (not shown) that the envelope main body 1 has been transported from the tape affixing area to the flap affixing area in the above (2) and stopped, a flap affixing device 14 operates. Execute As described above, the flap sticking device 14 attaches the flap 2 to which the adhesive tape 3 has been stuck to the one side 1A of the envelope main body 1 by the bending device 42 while holding the envelope main body 1 by the envelope holding device 41 as described above. Bending from 2A, the remaining portion in the width direction of the pressure-sensitive adhesive layer of the pressure-sensitive adhesive tape 3 is pressed against the other side surface 1B of the envelope body 1 and stuck.

According to the present embodiment, the following operations are provided. The adhesive tape 3 is adhered while the flap 2 is extended from one side 1A of the envelope body 1 on the same surface, and the posture of the flap 2 when attaching the adhesive tape 3 can be stabilized. The workability of attaching the tape to the flap 2 can be improved.

To bend the flap 2, the adhesive tape 3 is attached to the flap 2, and the flap 2 is attached to the envelope body 1.
It only needs to be performed once at the time of sticking to the other side surface 1B, and the number of sealing operations can be reduced to improve the productivity of sealing.

The tape sticking device 13 is used for the tape holder 2
The tape holder 21 is moved from the tape receiving position to the tape attaching position by the moving device 22, and the tape holder 21 is pressed against the flap 2 at the tape attaching position. Are supported by the flap receiving portion 23. Therefore, the adhesive tape 3 sucked and held by the tape holder 21 can be securely adhered to the outer surface of the flap 2.

The flap sticking device 14 folds the flap 2 of the envelope body 1 held by the envelope holding device 41 to the root 2A on one side 1A of the envelope body 1 by the bending device 42.
From the main body of the envelope 1
Can be completely sealed without leaving the opening 1C.

The bending device 42 drives the presser 49 which abuts on the outer surface of the flap 2 to bend the flap 2 by the cooperative action of the lifting / lowering device 43 and the rocking device 50. Thereby, the flap 2 can be bent.

By setting the pivot point (hinge 49A) of the pressing element 49 pivotally supported by the elevating device 43 higher than the one side 1A of the envelope body 1, the flap 2 is securely moved to the one side 1A of the envelope body 1. Bending can be started from the base 2A.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and the design can be changed within the scope of the present invention. The present invention is also included in the present invention.

[0041]

As described above, according to the present invention, it is possible to improve the workability of affixing the tape to the flap and to reduce the number of sealing steps, thereby improving the sealing productivity.

[Brief description of the drawings]

FIG. 1 is a front view showing a tape sticking device of a sealing device.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a side view showing a flap sticking device of the sealing device.

FIG. 4 is a schematic diagram showing a flap bending order.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Envelope main body 1A One side 1B Other side 1C Opening 2 Flap 2A Root 3 Adhesive tape 10 Sealing device 12 Tape supply device 13 Tape attaching device 14 Flap attaching device 21 Tape holder 22 Moving device 23 Flap receiving portion 41 Envelope holding device 42 Bending device 43 Lifting device 49 Presser 49A Hinge (pivot point) 50 Swinging device

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Haruo Mori 5-14-1, Higashikashigaya, Ebina-shi, Kanagawa F-term in Shibaura Mechatronics Co., Ltd. Sagamino Office 3E049 AA06 AB06 BA10 CA06 DB06 EA02 EB02 EC02 FA07 3E094 AA12 BA14 CA33 DA06 FA02 FA25 GA11 HA01 HA08

Claims (5)

[Claims] 1. A sealing device for sticking a flap extended from one side of an envelope body to the other side of the envelope body with an adhesive tape, comprising: a tape supply device for supplying a fixed length of adhesive tape; Affixing the widthwise part of the adhesive tape supplied by the tape supply device to the outer surface of the flap while supporting the inner surface of the flap while being extended on the same surface from one side of the flap; A flap sticking device that bends the flap to which the adhesive tape is stuck on one side of the envelope body and sticks the remaining portion of the adhesive tape in the width direction to the other side of the envelope body. Sealing device. 2. The tape applying device according to claim 1, wherein the tape attaching device moves the tape holding device between a tape receiving position from a tape supply device and a tape attaching position to a flap, by moving the tape holding device. 2. The sealing device according to claim 1, further comprising a moving device that presses the holding tool against the flap at the tape application position, and a flap receiving portion that supports an inner surface of the flap at the tape application position. 3. An envelope holding device for holding an envelope body, wherein the flap attaching device pushes an outer surface of the flap to which the adhesive tape is attached from a root to one side of the envelope body, and the inner surface of the flap is enveloped. 3. The sealing device according to claim 1, further comprising a bending device that bends the flap until the flap is pressed against the other side surface of the main body. 4. An elevating device in which the folding device is moved up and down with respect to an envelope body held by an envelope holding device, a pressing member pivotally supported by the elevating device and in contact with an outer surface of a flap, and A swing device for swinging around a pivot point with the device, wherein the flap is bent substantially at right angles to one side surface of the envelope body by the descending operation of the pusher by the elevating device, and the pusher is moved by the swing device. The sealing device according to claim 3, wherein the flap can be further folded to a position where the flap overlaps the other side surface of the envelope body by the swinging operation. 5. At the lower end of the presser by the lifting device,
The sealing device according to claim 4, wherein the pivot point of the pressing element is set higher than the level of one side surface of the envelope body.