JPH09118304A - Sealer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To seal firmly and stably even when an enclosure thickness or size is not even or an enclosure in an envelope is not in place. SOLUTION: A sealer 33 presses down and seals a flap 22A of an envelope 22 having an enclosure 21. The sealer comprises a roller 45 which extends breadthwise along the envelope flap, and which is provided with brushes 46A & 46B to press down the envelope flap. The brushes are made of soft material to evenly press down the flap even when the flap has difference of elevation depending on the enclosure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing device for sealing a bag body in which an enclosure is enclosed.

[0002]

2. Description of the Related Art A conventional enclosing / sealing device 1 shown in FIG. 6 includes an encapsulating material supply device 2, an encapsulating material conveyor 3, an envelope supplying device 4,
Envelope conveyor 5, enclosure inclusion device 6, envelope flap folding device 7, enclosing device 8 and envelope stacker device (not shown)
Is configured.

The enclosed material 9 is supplied onto the enclosed material conveyor 3 from each of the plurality of enclosed material supply devices 2, and is collected and conveyed in a laminated state. On the other hand, the envelope 10 is supplied from the envelope supply device 4 onto the envelope conveyor 5 and conveyed, and at the encapsulation position 11 of both conveyors 3 and 5, the enclosure 9 is inserted and enclosed in the envelope 10 by the enclosure enclosure 6. To be done. The envelope 10 in which the inclusion 9 is enclosed is sealed by the envelope flap folding device 7 and the enclosing device 8 and sequentially stacked in the envelope stacker device.

That is, the above-mentioned envelope flap folding device 7
The flap 10A of the envelope 10 is bent as shown in FIG.
The entire surface of A is pressed by the extruding rod 12 at the same time and adhered.
In this way, the envelope 10 is sealed.

[0005]

However, there is a dimensional difference in the size of the inclusion 9 conveyed by the inclusion conveyer 3, or the thickness of the inclusion 9 varies like personal information paper. Even if the size and thickness of the enclosed material 9 are the same, if the enclosed position in the envelope 10 is displaced, the sealing device 8
Flap 1 adhered at the time of sealing with the extruding rod 12 of
Wrinkles may occur at 0A. Furthermore, as shown in FIG. 8, since the push-out rod 12 of the sealing device 8 presses only the portion X of the flap 10A corresponding to the inclusion 9, the unpressed portion Y is not adhered and sealing is insufficient. In some cases

An object of the present invention is to take the above circumstances into consideration, and even if the thickness or size of the enclosed material is not uniform or the enclosed material enclosed in the envelope is misaligned,
An object of the present invention is to provide a sealing device capable of realizing good and stable sealing.

[0007]

According to a first aspect of the present invention, there is provided a sealing device for sealing the bag body by pressing and adhering a flap of the bag body in which an enclosed material is sealed, to seal the bag body. A pressing member capable of pressing the flap is installed on a support extending in the width direction of the flap, and the pressing member uniformly presses the flap even if a height difference occurs in the flap due to the inclusion. It is composed of possible flexible materials.

According to a second aspect of the present invention, in the first aspect of the present invention, the support is a roller, and the pressing member is provided on the circumferential surface of the roller from the axial center position of the roller in the axial direction. The rollers are arranged so as to be gradually rearward in the rotational direction of the roller as they move toward both sides.

According to a third aspect of the invention, in the first aspect of the invention, the support is a roller, and the pressing member is linear on the circumferential surface of the roller along the axial direction of the roller. It was installed in.

According to a fourth aspect of the present invention, in the invention according to the first aspect, the support is a roller, and the pressing member is installed over substantially the entire circumferential surface of the roller.

According to a fifth aspect of the present invention, in the invention according to the first aspect, the support is an extruding rod, and a pressing member is linearly installed at the tip of the extruding rod.

The invention described in claims 1 to 5 has the following effects. On the support extending in the width direction of the bag flap,
A pressing member that can press the flap is installed, and this pressing member is made of a flexible material that can press the flap evenly even if there is a difference in height between the flaps. Even if there is a difference in height between the flaps of the bag due to variations in the thickness and size of the items, or because the enclosed items are misaligned in the envelope,
The pressing member absorbs this height difference and can evenly press the entire surface of the flap. As a result, good and stable sealing can be realized.

In particular, according to the second aspect of the invention, the pressing member is arranged so as to be gradually positioned in the rotational direction of the roller from the axial center position of the roller toward both sides in the axial direction. After the pressing member at the central position in the axial direction presses the central portion in the width direction of the flap, the pressing members sequentially positioned on both axial sides of the roller from the pressing member at the central position are separated from the center of the flap in the width direction. Gradually press the part. For this reason, wrinkles may occur on the flap to be bonded, or only a part of the flap may be bonded.
Further, the flaps are not inclined and adhered, and a better and more stable sealing can be realized.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. (A) First Embodiment FIG. 1 is a plan view showing an enclosing and sealing device to which the first embodiment of the sealing device according to the present invention is applied. FIG. 2 is a perspective view showing the sealing device of FIG. 1. FIG. 3 is a side view of the sealing device of FIG. FIG. 4 is a front view showing a part of the sealing device of FIG.

As shown in FIG. 1, the enclosing and sealing device 20 includes
An enclosure 21 such as a printed matter, a catalog, a magazine or personal information paper is enclosed in an envelope 22 as a bag and sealed. This enclosing / sealing device 20 is an encapsulating material supply device 2
3, enclosure conveyor 24, envelope supply device 25, envelope conveyor 26, envelope flap opening device 27, envelope opening device 28, enclosure enclosing device 30, envelope flap gluing device 3
1, an envelope flap folding device 32, an enclosing device 33, and an envelope stacker device 34.

The enclosure supply device 23 is used for the enclosure conveyor 2
A plurality of them are installed along the line 4. The inclusions 21 are supplied from the respective inclusions supply devices 23 onto the inclusions conveyor 24, and the inclusions 21 are collated in a stacked state on the inclusions conveyor 24 and conveyed. The envelope supply device 25 also supplies the envelopes 22 one by one onto the envelope conveyor 26 without stacking them.

The inclusion conveyor 24 comprises two chains 3
6 are respectively wound around two sprockets (not shown) and arranged in parallel, and the inclusion feeding pawls 37 are fixed to the chains 36 at predetermined intervals. This predetermined interval is set to be equal to or longer than the length of the enclosure 21. Above the chains 36, the inclusion receiving plate 38 is installed. The inclusion feeding pawl 37 is provided so as to project from the inclusion receiving plate 38. The inclusions 21 supplied to the inclusions conveyor 24 are placed on the inclusions receiving plate 38, pushed by the inclusions feeding claw 37, and slid on the inclusions receiving plate 38 to be conveyed. In addition, the sprocket that drives the chain 36 of the inclusion conveyor 24 rotates intermittently,
The inclusion 21 is intermittently conveyed.

The envelope conveyor 26 is a chain 40.
Is wound around two sprockets (not shown), and the envelope feed claws 41 are fixed to the chain 40 at predetermined intervals. This predetermined interval is set to be equal to or longer than the length of the envelope 22. An envelope receiving plate 42 is arranged above the chain 40, and the envelope feed claw 41 penetrates through the envelope receiving plate 42 and projects. The envelope 22 is placed on the envelope receiving plate 42, and is pushed by the envelope feeding claw 41 to be conveyed. The sprocket that drives the chain 40 of the envelope conveyor 26 also intermittently rotates to intermittently convey the envelope 22.

The envelope flap opening device 27 opens the flap 22A of the envelope 22. Since the envelope 22 is supplied by the envelope supply device 25 with the flap 22A closed, the envelope flap opening device 27 is required.
The flap 22A of the envelope 22 is an envelope flap opening device 2
The opening is opened to about 90 ° by 7, and the opening is opened to about 180 ° by using an opening guide plate (not shown) in the next process.

The envelope opening device 28 is installed at the enclosing position A of the envelope conveyor 26, and sucks the front surface and the back surface of the envelope 22 by a lower suction cup and an upper suction cup (both not shown) that can be moved up and down. The mouth of 22 is opened.

The inclusion enclosure device 30 includes an inclusion conveyor 24.
It is installed in the enclosing position A of. In this enclosure inclusion device 30, by sliding the push member 43 from the enclosure conveyor 24 side to the envelope conveyor 26 side, the enclosure 21 on the envelope conveyor 26 opened to the enclosure 21 on the enclosure conveyor 24 is opened. Is inserted and sealed.

The envelope flap gluing device 31 is for gluing the flap 22A of the envelope 22 on the envelope conveyor 26 (or water if the glue in a dry state is attached to the flap 22A). Further, in the envelope flap folding device 32, the folding arm 44 shown in FIG.
The flap 22A of the envelope 22 on the envelope conveyor 26 is pushed up from below and bent. Further, as will be described later in detail, the sealing device 33 is on the envelope conveyor 26 and presses the folded flap 22A against the envelope 22 to bond them to seal the envelope 22.

The envelope stacker device 34 is used for the envelope conveyor 2
The envelope 22 which is on the upper side of the box 6 and is sealed after the enclosure 21 is sealed is pushed up from the bottom to the top to be stacked, and a predetermined amount is stacked.

In the sealing device 33, as shown in FIGS. 2 to 4, brushes or plates (brushes 46A and 46B in this embodiment) as pressing members are provided on the peripheral surface of the roller 45 as a support. It was installed. The roller 45 extends in the width direction of the flap 22A of the envelope 22,
The axial length is configured to be equal to or larger than the width of the flap 22A. Further, the brush 46A is installed on the circumferential surface of the roller 45 at the center position of the roller 45 in the axial direction O. The brushes 46B are arranged on both sides of the brush 46A along the axial direction O of the roller 45 on the circumferential surface of the roller 45. Further, the brush 46A is arranged at the forefront in the rotation direction M of the roller 45, and the both brushes 46B are arranged in the brush 4A.
It is arranged behind 6A in the rotation direction M of the roller 45.

The above-mentioned brushes 46A and 46B are made of a flexible material, and even if there is a height difference in the flap 22A due to the enclosure 21 enclosed in the envelope 22, the flap 22A absorbs the height difference due to bending deformation, It is configured so that the entire surface of 22A can be pressed uniformly.

By rotating the roller 45 in the M direction, first,
The brush 46A presses and adheres to the center portion of the flap 22A in the width direction of the envelope 22, and the further rotation of the roller 45 in the same direction M causes both brushes 46B to press the outer side portions of the flap 22A in the width direction. In this way, the flap 22A is sequentially pressed by the brushes 46A and 46B from the center portion in the width direction to both outer portions to be bonded.

According to the above embodiment, the rollers 45 extending in the width direction of the flap 22A of the envelope 22 are provided with the brushes 46A and 46B capable of pressing the flap 22A. These brushes 46A and 46B are Flap 2
Since the flap 22A is made of a flexible material that can evenly press the flap 22A even when there is a difference in height between the 2A, the enclosure 21 in the envelope 22 may vary in thickness or size, or The enclosure 21 may be misaligned in the envelope 22, and the flap 22A of the envelope 22 may be misaligned.
Even if there is a difference in height, the brushes 46A and 46B can absorb the difference in height and evenly press the entire surface of the flap 22A. As a result, the envelope 22 in which the enclosure 21 is enclosed
Can be sealed stably and satisfactorily.

A brush 46A located at the center position of the roller 45 in the axial direction O is arranged at the forefront in the rotation direction M of the roller 45, and brushes arranged on both sides of the roller 45 in the axial direction O of the roller 45. 46B is the roller 4
Since the brush 46A is arranged rearward in the rotation direction M of FIG.
After pressing the center portion of the flap 22A in the width direction, the brush 46B gradually presses both side portions apart from the center of the flap 22A in the width direction. For this reason, wrinkles do not occur in the flap 22A to be adhered, only a part of the flap 22A is adhered, and the flap 22A is not inclined and adhered, so that a better and stable sealing can be realized.

In the above-mentioned embodiment, the brush 46B is arranged on both sides of the brush 46A. However, another brush is further provided on both outer sides of the brush 46B along the axial direction O of the roller 45. These other brushes may be sequentially arranged behind the brush 46B in the rotation direction M of the roller 45.

Further, as shown by the alternate long and short dash line in FIG. 4, a brush 46 is continuously provided in the axial direction O of the roller 45, and the brush 46 is gradually increased from the central position of the roller 45 in the axial direction O toward both sides. It may be arranged so as to be located rearward with respect to the rotation direction M of the roller 45.

Further, in the above-described embodiment, an example in which a gap is provided between the brushes 46A and 46B has been described, but it is not necessary to provide a gap between the brushes 46A and 46B, and the brushes 46A and 46B can be disposed without a gap. Is also good.

(B) Second Embodiment FIG. 5 is a perspective view showing a main part of a second embodiment of the sealing device according to the present invention. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In this sealing device 50, a brush 51 (or plate) as a pressing member is linearly installed on the peripheral surface of the roller 45 along the axial direction O of the roller 45. The brush 51 is also made of a flexible material, and the envelope 2
Even if a height difference occurs in the flap 22A by the enclosure 21 enclosed in the inside 2, the height difference is absorbed by the flexural deformation, and the entire surface of the flap 22A can be pressed simultaneously.

Therefore, in this sealing device 50, the roller 4
Even when the brush 51 rotates in the rotation direction M of FIG.
The entire surface of the second flap 22A is pressed at the same time. At this time, even if there is a height difference in the flap 22A, the brush 51 flexibly deforms to absorb the height difference, and the flap 22A
Glue the entire surface of evenly. As a result, this sealing device 50
Also in the case, the flap 22A of the envelope 22 in which the enclosure 21 is enclosed can be stably and satisfactorily sealed.

(C) Third Embodiment In the enclosing device of this embodiment, the pressing member is a plurality of brushes, and the brushes are planted on substantially the entire circumferential surface of the roller as a support. This brush is also made of a flexible material that can evenly press the flaps even if the flaps have a height difference.

Therefore, also in this sealing device, as in the sealing devices 33 and 50 of the first and second embodiments, when the roller is rotated, the entire surface of the flap of the envelope in which the inclusions are enclosed is covered with a plurality of flaps. It can be pressed evenly by the brush, and at this time, the brush can absorb the height difference of the flap and evenly bond the flap, thereby realizing good and stable sealing.

(D) Fourth Embodiment In the sealing device according to this embodiment, the supporting member is shown in FIG. 7 and FIG.
The extruding rod having the shape shown in FIG. 3, in which a brush or a plate as a pressing member is linearly installed at the tip of the extruding rod. This brush or plate is also made of a flexible material that can evenly press the flap even if the flap causes a height difference.

Therefore, also in this sealing device, when the push rod is moved toward the flap of the envelope, the brush or the plate can uniformly press the entire surface of the flap even if the flap has a height difference. , The flaps can be evenly bonded, and good and stable sealing can be realized.

[0039]

As described above, according to the sealing device of the present invention, even if the thickness or size of the enclosed material is not uniform or the enclosed material in the bag is misaligned, A good and stable sealing can be realized.

[Brief description of the drawings]

FIG. 1 is a plan view showing an enclosing and sealing device to which a first embodiment of a sealing device according to the present invention is applied.

FIG. 2 is a perspective view showing the sealing device of FIG. 1.

FIG. 3 is a side view of the sealing device of FIG. 2.

FIG. 4 is a front view showing a part of the sealing device of FIG.

FIG. 5 is a perspective view showing a main part of a second embodiment of the sealing device according to the present invention.

FIG. 6 is a plan view showing a conventional enclosing and sealing device.

FIG. 7 is a side view showing the closing device and the envelope flap folding device of FIG. 6;

FIG. 8 is a view on arrow VIII of FIG. 7.

[Explanation of symbols]

 21 Enclosure 22 Envelope 22A Flap 33 Enclosing Device 45 Rollers (Support) 46A, 46B Brush (Pressing Member) 50 Enclosing Device 51 Brush (Pressing Member)

Claims (5)

[Claims] 1. A sealing device for sealing a bag body by pressing and adhering a flap of a bag body in which an enclosure is sealed, comprising: a support body extending in a width direction of the flap of the bag body;
A pressing member capable of pressing the flap is installed, and the pressing member is made of a flexible material that can evenly press the flap even if a height difference occurs in the flap due to the inclusion. A sealing device. 2. The support is a roller, and the pressing member is positioned on the circumferential surface of the roller so that the pressing member is gradually positioned rearward in the rotational direction of the roller from the axial center of the roller toward both sides in the axial direction. The sealing device according to claim 1, wherein the sealing device is arranged. 3. The sealing device according to claim 1, wherein the support is a roller, and the pressing member is linearly installed on the peripheral surface of the roller along the axial direction of the roller. 4. The support is a roller, and the pressing member is installed over substantially the entire circumferential surface of the roller.
The sealing device described in 1. 5. The sealing device according to claim 1, wherein the support is an extruding rod, and a pressing member is linearly installed at a tip of the extruding rod.