JPH0716957A - Sealing device - Google Patents

Abstract

PURPOSE:To make an exchange of adhesive tape cartridges or cleaning of an adhesive film sticking mechanism unnecessary in a sealing operation lasting for a long time, by a method wherein the adhesive film sticking mechanism is provided on a flap side of a course of an envelope and a thin and long-sized double face adhesive tape is allowed to stick to an adhesive part of the envelope. CONSTITUTION:An adhesive film sticking mechanism 10 possesses an adhesive film supply reel 11 on which a tape 21 to which the adhesive film is stuck is wound, a roller 32 transferring the adhesive film unwound through the reel 11 by pressing it against an adhesive part of the envelope, a solenoid 30 driving the roller 32, a separator wind-up reel 12 winding a separator 22 after transfer of the adhesive film, a motor 15 and a sensor detecting a position of the envelope. Then the adhesive film sticking mechanism 10 controls an envelope moving mechanism (belt 3a) based on a detected result of the sensor, the adhesive film transfer roller 32 and the separator wind-up reel 12 and the adhesive film is transferred to the adhesive part of the envelope from the tape 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing device, and more particularly to a sealing device capable of efficiently adhering an adhesive film for sticking a flap to an envelope body to the envelope.

[0002]

2. Description of the Related Art Conventionally, in an apparatus for putting a document or the like in an envelope and sealing it, an adhesive such as glue is applied to the portion where the flap is folded back and attached, and the vicinity of the tip of the flap is fixed to the envelope body. Adhesives can be attached to the sticking part by applying an adhesive such as glue to the sticking part immediately before folding back the flap, or by applying glue to the sticking part in advance and drying it. In addition, a method of wetting with water just before sticking,
Alternatively, there is a method in which just before attaching, the double-sided adhesive tape sandwiched between tape-shaped separators and wound is cut together with the separator to an appropriate length and attached, and then only the separator is removed.

[0003]

As described above, in the conventional sealing device, when the flap and the envelope body are attached, an adhesive such as glue is applied to the attaching portion or a double-sided adhesive tape is attached. However, when using an adhesive such as glue, you can store it directly on the flap just before turning it over, or by applying it in advance and moistening it with water immediately before storing it. However, there is a drawback in that the replenishment work is not only troublesome, but also related parts need to be regularly cleaned, and a great deal of labor is required for maintenance of the device. Further, when using the double-sided adhesive tape, it is necessary to cut to a certain length before adhering to the sticking part, and to remove the separator from the sticking part after sticking, which is not very efficient. There is.

When the double-sided adhesive tape is used, it is possible to use the tape contained in the cartridge and arrange it along the movement path of the envelope to transfer the adhesive film to the attachment portion of the envelope. However, there is a problem that the arrangement of the drive mechanism for supporting the cartridge and transferring the adhesive film is restricted by the shape of the cartridge, and the structure of the entire apparatus becomes complicated. In addition, since there is a limit to the amount of tape that can be accommodated in a cartridge, it is often necessary to replace the cartridge.Therefore, when performing a large amount of continuous sealing, there is a disadvantage that the replacement of the cartridge reduces the work efficiency. is there.

An object of the present invention is to eliminate such a drawback by using a long double-sided adhesive tape wound with a thin separator with an adhesive film, and to compare with conventional methods.
It is an object of the present invention to provide a sealing device in which, in a continuous and large amount of sealing, an adhesive film is efficiently attached to a sticking portion of an envelope, and cleaning after the work is not required.

[0006]

In order to achieve the above-mentioned object, the sealing device of the present invention is provided with a sticking portion 2a on one of the surfaces facing each other when the flap 2 of the envelope is folded back, and the envelope is fixed in a certain direction. While moving, flap 2 is folded back and attached section 2
In the device for adhering and sealing the flap 2 and the envelope body 1 with a, an adhesive film adhering mechanism 10 for adhering the adhesive film 20 to the adhering portion 2a is arranged on the flap 2 side of the movement path of the envelope,

The adhesive film attachment mechanism 10 includes an adhesive film supply reel 11 on which a tape-shaped separator 22 to which the adhesive film 20 is attached is wound, and a first reel support portion 13 for supporting the adhesive film supply reel 11. An adhesive film pressing portion 32 for pressing and transferring the adhesive film 20 fed out from the adhesive film supply reel 11 together with the separator 22 to the adhesive portion 2a of the envelope.
And an adhesive film pressing drive unit 30 that drives the adhesive film pressing unit 32, and a separator take-up reel 12 that winds up the separator 22 without the adhesive film after transferring the adhesive film 20 to the sticking unit 2a of the envelope. And separator take-up reel 12
To detect the position of the moving envelope. The second reel support portion 14 for supporting the reel, the separator take-up reel drive portion 15 for driving the second reel support portion 14 for rotating the supporting reel, and the position of the moving envelope. The sensors 61 and 62, and at least a drive unit 6 of an envelope moving mechanism that moves the envelope, an adhesive film pressing unit drive unit 30, and a control unit that controls the operation of the separator take-up reel drive unit 15,

The traveling path of the separator 22 and the moving path of the sticking portion 2a of the envelope are on the same plane, and the control section selects the envelope moving mechanism and the adhesive film pressing section based on the detection results of the sensors 61 and 62. Controls the separator take-up reel,
When the envelope moves and reaches the position where the adhesive film 20 should be transferred to the sticking part 2a of the envelope, the adhesive film 20 is transferred from the separator 22 to the sticking part 2a.

The sticking portion 2a of the envelope is provided on the surface of the envelope body 1 which faces the flap 2 when the flap 2 is folded back, or the flap which faces the envelope body 1 when the flap 2 is folded back. The structure provided on the second surface.

[0010]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a partially cutaway front view showing a main part of an adhesive film deposition device, which is a feature of one embodiment of the present invention.
FIG. 2 is a plan view of the portion of FIG. FIG. 3 is a left side view of the portion of FIG. FIG. 4 is a back view showing an example of an envelope to be sealed by the apparatus of the embodiment of FIG. Figure 5
Omits a part of the example of the sealing device including the part shown in FIG.
And an explanatory view (plan view) shown by cutting along the line C-C in FIG.
Is. FIG. 6 is an explanatory view (front view) cut along AA of the sealing device in FIG. FIG. 7 shows a moving mechanism for moving the envelope to be sealed, and is an explanatory view (front view) cut along the line BB in FIG. 1, 2, 3, 5, 6, and 7, the front surface, the top surface, and
Alternatively, it is shown with the side removed.

First, an outline of the apparatus of this embodiment will be described. 5 to 7, reference numeral 5 is a pulley that transmits a rotational force to each belt driving roller. A motor 6 rotates the pulley 5. The motor 6 rotates the belts 3a to 3d in the directions shown by the arrows in FIG. 3 via the pulley 5 and the respective belt driving rollers. Belt 3b at this time
The belts 4b to 4d that are in contact with 3d to 3d also rotate together. The envelope can be moved from left to right in the drawings of FIGS. 5 to 7 by being sandwiched between the rotating lower belts 3b to 3d and the upper belts 4b to 4d. Reference numerals 61 and 62 in FIG. 6 are sensors for detecting the position of the envelope in order to determine the timing of transferring the adhesive film 20 from the tape 21 to the flap 2 or the envelope body 1.

Reference numeral 8 is a disc-shaped bending roller. The fold line 1a is provided between the envelope body 1 and the flap 2 as shown in FIG. Reference numeral 10 denotes an adhesive film attachment device for attaching the adhesive film 20 to the attachment portion (for example, 2a) of the envelope body 1 or the flap 2. The adhesive film attachment device 10 will be described in detail later. Reference numeral 49 denotes a bending tool for attaching the adhesive film 20 by the adhesive film attaching device 10 and then raising the flap 2 from the fold 1a to bend it. When the flap 2 is bent, the flap 2 protruding from the restraining plate 48 that holds the envelope body 1 in progress along the fold line 1a is bent, and is raised to guide the change of the posture. The folding tool 49 may be relatively simple because the folded flap 2 is surely processed correctly by the flap fixing mechanism later. In this embodiment, the plate-shaped bending tool deformed along the curved surface is arranged so that the flap 2 rises along the inside of the bending tool as the envelope advances, as shown in FIGS. 5 and 6. .

Reference numeral 50 denotes a flap fixing mechanism for further bending the flap 2 which has already been bent to some extent, and pressing and fixing the flap 2 and the envelope body 1 in a correct posture. Reference numeral 51 is a flap pressing plate. Adhesion of the adhesive film to the attachment portion 2a and fold 1 at the base of the flap
In order to press the flap 2 of the envelope that has been bent at a toward the envelope body 1, the flap 2 is arranged on the flap 2 side of the movement path of the envelope. And flap pressing plate 5
The longitudinal direction of 1 is parallel to the moving path of the envelope. 52
Is a flap pressing plate support, and the flap pressing plate 5
1 is rotatably supported. Reference numeral 53 is a pressing plate drive unit. The movable portion of the flap pressing plate support portion 52 is driven and rotated. By the rotation, the flap pressing plate 51
The tip of the opens or closes against the moving surface of the envelope.
Flap pressing plate 51, flap pressing plate support 5
2. The flap fixing mechanism 50 is formed by the pressing plate driving unit (solenoid) 53. FIG. 8 is a left side view of the flap fixing mechanism 50.

Next, the adhesive film attachment mechanism 10, which is a feature of this embodiment, will be described in detail. In FIGS. 1 to 3, 11
Is an adhesive film supply reel, and 12 is a separator winding reel. A take-up tape 23 as shown in the perspective view of FIG. 9 is mounted on the adhesive film supply reel 11. The winding tape 23 is obtained by winding the tape 21 with the adhesive film (adhesive layer) 20 attached to one surface of the separator (release paper) 22. The adhesive film and the separator are both thin, and are generally called double-sided adhesive tapes for long-winding business forms (for example, when the thickness of the adhesive layer is 0.03 mm and the thickness of the separator is 0.05 mm, , Which is wound up with a length of 1 to 2 km) is suitable. 24
Is a winding tape obtained by winding the separator 22 to which the adhesive film 20 is not attached after transferring the adhesive film 20 to the flap 2 or a predetermined place of the envelope body 1.
It is mounted on the separator take-up reel 12.

Reference numeral 13 is a first reel support portion for rotatably supporting the adhesive film supply reel 11. Reference numeral 14 is a second reel support portion that rotatably supports the separator take-up reel 12. The second reel support portion 14 is rotated by the motor 15 via the belt 16. Reference numeral 31 is a guide roller for guiding the tape 21 fed from the adhesive film supply reel 11. Reference numeral 32 denotes an adhesive film transfer roller for transferring the adhesive film 20 attached to one surface of the tape 21 to the flap 2 or the attachment portion of the envelope body 1.

Guide roller 31 and adhesive film transfer roller 32
Is rotatably supported by the roller support portion 33, and the roller support portion 33 is fixed to one end of the roller position conversion bar 35 and is rotatably supported about the support shaft 34. The other end of the roller position conversion bar 35 is coupled to the tip of the movable portion 30a of the solenoid 30 via an intermediary plate 36. In addition,
The spring 37, one end of which is hung on the intermediary plate 36,
The spring 38 urged the movable portion 30a of the solenoid 30 to return to the inoperative position, and the spring 38 hung on the other end of the roller position conversion bar 35 flaps the adhesive film 20 from the tape 21 to the flap 2. Alternatively, when transferring to the sticking portion of the envelope body 1, the adhesive film transfer roller 32 is urged to generate a force to press the sticking portion.

Reference numeral 41 is a position adjusting dial for changing the relative position of the entire adhesive film attaching mechanism 10 relative to the envelope moving mechanism (hence to the envelope on the belt) at right angles to the envelope path. A female screw is formed in the central hole of the position adjusting dial 41, and a shaft 42 having a male screw is engaged with the female screw. The shaft 42 is fixed to the frame of the envelope moving mechanism, although the situation is not shown. Although the adjustment dial support plates 43a and 43b are engaged with the shaft 42 so as to sandwich the position adjustment dial 41. The engagement is slidable in the moving direction of the position adjusting dial 41 with respect to the shaft 42. The end portions of the roller support plates 43a and 43b are fixed to a frame that supports the entire adhesive film attachment mechanism 10, although the situation is not shown. Therefore, by operating and rotating the position adjusting dial 41, the relative position of the entire adhesive film attachment mechanism 10 can be changed at right angles to the envelope path with respect to the envelope moving mechanism (hence the envelope on the belt). . Therefore, when it is desired to change the transfer location of the adhesive film 20 according to the size of the envelope, the position adjustment dial 4
1 may be operated to rotate.

When using the adhesive film attachment mechanism 10,
First, the position adjusting dial 41 is operated to determine the transfer position of the adhesive film 20 according to the size of the envelope, and the winding tape 23
Is attached to the adhesive film supply reel 11, the tip is peeled off, the separator tape 21 with the adhesive film is guided along the guide roller 31 and the adhesive film transfer roller 32, and is wound on the separator take-up reel 12. At this time, the solenoid 30 is in a non-operating state, the movable portion 30a of the solenoid 30 protrudes, and the roller supporting portion 3
Roller position conversion bar 3 until 3 hits the stopper 39
Since 5 (hence, the roller support portion 33) is rotated counterclockwise in the figure, the adhesive film transfer roller 32 is sufficiently separated from the envelope moving belt 3a. Therefore, it is easy to set the tape 21 on the adhesive film attachment mechanism 10.

When the adhesive film 20 is to be transferred to the sticking part 2a of the envelope, the solenoid 30 is in the operating state and the movable part 30a is retracted, and the spring 38 biases the roller position conversion bar 35. Roller support 33)
Is rotated clockwise in the figure, the adhesive film transfer roller 32 is lowered, and the adhesive portion 2a of the envelope is pressed to transfer the adhesive film from the tape 21 to the envelope. When the transfer of the adhesive film to the necessary portion is completed by the movement of the envelope, the solenoid 30 is made inoperative, so that the spring 3
The roller position conversion bar 35 (and hence the roller support portion 33) is rotated counterclockwise in the figure by the bias of 7. Therefore, the adhesive film transfer roller 32 is raised to attach the sticking portion 2 of the envelope.
Although it separates from a, the adhesive film will be pulled appropriately at this time, so the adhesive film remains necessary parts in the adhesive part,
It is easily torn off at its edges. The solenoid 3
0 and the motor 15 operate synchronously, and the tape 22 after the transfer of the adhesive film 20 is wound on the separator take-up reel 12 only during the transfer of the adhesive film.

Next, the overall operation of this embodiment will be described with reference to FIG.
This will be described with reference to FIGS. 6 and 8. The envelope supplied to this embodiment in FIGS. 5 and 6 is moved from left to right in the drawings. In the process, first, the folding roller 8 makes a fold line (fold line 1a in FIG. 4) at the boundary between the envelope body 1 and the flap 2. The details of the operation of the folding roller are the same as those in the conventional art, and thus will be omitted.

Next, when the envelope advances and the front edge of the flap 2 exceeds the position S ₁ of the sensor, the micro switch 61 is turned on. When the envelope further advances and the front edge of the flap 2 exceeds the sensor position S ₂ , the micro switch 62 is also turned on. Only when the two micro switches 61 and 62 are both turned on, the adhesive film transfer roller 32 approaches the path of the envelope, and the adhesive film 20 of the tape 21 comes into contact with the adhesive film attachment position T of the flap 2. From this time, the adhesive film is started to be attached to the flap 2. (The position of the envelope at this time is shown by the chain double-dashed line in FIG. 5.) When the flap 2 advances while the adhesive film is transferred and the trailing edge of the flap 2 moves away from the sensor position S ₁ , the micro switch 61 is turned off. Then, the adhesive film transfer roller 32 is separated from the path of the envelope, and the transfer of the adhesive film 20 to this envelope is stopped.

The envelope goes further and the flap folding tool 4
When the flap 2 is bent by 9 and the bent flap 2 advances along the surface of the flap pressing plate 51 on the envelope side and just comes to a position where they are properly overlapped, the motor 6 is controlled by a control unit (not shown). Will stop and the movement of the envelope will be suspended. Then solenoid 5
4 is actuated, and the flap pressing plate 51 falls toward the path of the envelope. At this time, the flap pressing plate 51 presses the flap 2 against the envelope body 1 to fix the flap 2 in a correct posture. The envelope thus sealed is moved and discharged to the outside of the apparatus by the driving of the belts 3a to 3d and 4b to 4d by the motor 6 subsequently.

The timing of temporarily stopping the movement of the envelope by stopping the motor 6, the timing of tilting the flap pressing plate 51 toward the path of the envelope, the timing of separating it from the same path, the timing of restarting the drive of the motor 6, etc. In addition to the sensor, a sensor is provided near the flap fixing mechanism 50 based on the on / off operation timings of the microswitches 61 and 62, and the envelope is detected by the sensor. You may control based on the information of the position of. The structure and form of the adhesive film attachment mechanism 10 are shown in FIGS.
Although various other than the ones shown in FIG. 3 are conceivable, any one may be used as long as it is in accordance with the gist of the present invention. Although the position where the adhesive film is transferred is provided at the folded-back portion of the flap 2 in the example, a sticking portion may be provided on the envelope body 1 side. Further, an example in which the control unit controls the operation of the envelope moving mechanism and the pressing plate based on the detection result of the sensor and temporarily stops the movement when the envelope moves near the flap pressing plate However, it is not necessary to stop it.

[0024]

As described above, according to the present invention, a mechanism for adhering an adhesive film for sealing is provided on the flap side along the path of the envelope. In the adhesive film attaching mechanism, a thin adhesive film is attached. By making it possible to use a long double-sided adhesive tape with the separator wound up, the adhesive film can be more efficiently attached to the attachment part of the envelope as compared with the conventional method, and the frequent adhesive tape cartridge It has the effect of not needing to be replaced or cleaned after work. Therefore, the present invention is particularly useful for improving the working efficiency by implementing it in a continuous and large-volume sealing device.

[Brief description of drawings]

FIG. 1 is a front view showing a main part of an embodiment of the present invention.

FIG. 2 is a plan view showing a main part of the embodiment shown in FIG.

FIG. 3 is a left side view showing a main part of the embodiment shown in FIG.

FIG. 4 is a back view showing an example of a sealed envelope.

5 is an explanatory view (a plan view cut along CC in FIG. 6) showing an example of the sealing device including the main part of FIG. 1. FIG.

FIG. 6 is an explanatory view (front view) taken along the line AA of the sealing device in FIG.

FIG. 7 is an explanatory view (front view) cut along the line BB of the sealing device in FIG.

FIG. 8 is a left side view showing the flap fixing mechanism of FIG.

9 is a perspective view showing an example of a winding tape used in the embodiment of FIG. 1. FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Envelope body 1a Fold 2 Flap 2a Adhesion part of flap 3a-3d, 4b-4d, 16 Belt 5 Belt drive roller direct connection pulley 6,15 Motor 8 Bending roller 10 Adhesive film attachment mechanism 11 Adhesive film supply reel 12 Separator winding Take-up reel 13,14 Reel support 20 Adhesive film 21 Separator tape with adhesive film 22 Separator tape 23 Separator (with adhesive film) Take-up tape 24 Separator (without adhesive film) Take-up tape 30,54 Solenoid 31 Guide roller 32 Adhesive film Transfer roller 41 Adhesive film attachment position adjustment dial 42 Male screw shaft 49 Bending tool 50 Flap fixing mechanism 51 Flap pressing plate 52 Flap pressing plate support 53 53 Pressing plate drive 61, 62 Sensor

Claims (3)

[Claims] 1. An envelope is provided with a sticking portion on one side of a surface facing each other when the flap is folded back, and the flap is folded back while moving the envelope in a certain direction, and the flap and the envelope body are stuck at the sticking portion to seal the envelope. In the device, an adhesive film attaching mechanism for attaching an adhesive film to the attaching portion is arranged on the flap side of the movement path of the envelope, and the adhesive film attaching mechanism is a tape-shaped separator to which an adhesive film is attached. The adhesive film supply reel wound up with the adhesive film, the first reel supporting portion supporting the adhesive film supply reel, and the adhesive film fed together with the separator from the adhesive film supply reel is pressed against the attachment portion of the envelope to be transferred. Adhesive film pressing unit, adhesive film pressing drive unit for driving the adhesive film pressing unit, and winding the separator without the adhesive film after transferring the adhesive film to the sticking unit of the envelope A separator take-up reel, a second reel support section that supports the separator take-up reel, a separator take-up reel drive section that drives the second reel support section for rotating the supported reel, and A sensor for detecting the position of the envelope inside, and at least a drive unit of an envelope moving mechanism for moving the envelope, a control unit for controlling the operation of the adhesive film pressing unit drive unit, and the separator take-up reel drive unit. Having the traveling path of the separator and the moving path of the sticking portion of the envelope are in the same plane, the control unit, based on the detection result of the sensor, the envelope moving mechanism, the adhesive film pressing unit and the The separator take-up reel is controlled so that when the envelope moves to a position where the adhesive film should be transferred to the sticking portion of the envelope, the adhesive film is moved from the separator to the front. Sealing apparatus characterized by being configured to transition to the bond portion. 2. The enclosing device according to claim 1, wherein the sticking portion of the envelope is provided on a surface of the envelope body facing the flap when the flap is folded back. 3. The sealing device according to claim 1, wherein the sticking portion of the envelope is provided on a surface of the flap that faces the envelope body when the flap is folded back.