JP2019131333A - Sealing device, envelope conveying device, and closing device - Google Patents

Abstract

To provide a sealing device and an envelope conveying device that can easily correct skew of an envelope.SOLUTION: A sealing device 1 includes: a conveying unit 3 that conveys an envelope E; a sealant imparting unit 7 that imparts a sealant to the envelope E conveyed by the conveying unit 3; and a closing portion 8 for closing a flap of the envelope E. A skew correction portion 9 for correcting skew of the envelope E is provided. The skew correction portion 9 is provided with an abutting plate 91 that abuts a side of the envelope E. Further, the abutting plate 91 is configured to be able to block conveyance of the envelope E in a conveyance path 4. Furthermore, the abutting plate moving portion 94 is provided that moves the abutting plate 91 between a standby position where the envelope E is allowed to pass and a skew correction position where the conveyance of the envelope is blocked.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sealing device, an envelope conveying device, and a sealing device.

  Conventionally, a sealing device has been developed in which glue is automatically applied to a manual sealing operation, a fold is formed in the flap, and the flap is folded and attached to the envelope body side (Patent Document 1).

  The sealing device includes, for example, an envelope supply unit that supplies an envelope, a crease forming unit that forms a fold in the flap, a glue application unit that applies glue to the flap, and a seal that folds the flap and attaches it to the envelope body. And a stop.

JP 2006-151518 A

  In the conventional sealing device, it is difficult to correct the skew of the envelope. Moreover, the envelope after sealing was not divided according to the thickness of the envelope. Further, when the folding line is formed on the flap and the envelope is sealed, the sealing roller is not moved.

  An object of the present invention is to provide a sealing device and an envelope conveying device that can easily correct skewing of an envelope.

  In order to solve the above-described problems, a sealing device of the present invention includes a transport unit that transports an envelope, a sealant applying unit that applies a sealant to an envelope transported by the transport unit, and a seal that seals the flap of the envelope A skew correction unit that corrects the skew of the envelope, and an abutting plate that abuts the side of the envelope is installed in the skew correction unit.

  Further, in the above configuration, the abutting plate is configured to be able to block the conveyance of the envelope in the conveyance path.

Further, in each of the above-described configurations, a butting plate moving unit that moves the butting plate between a standby position for allowing the envelope to pass and a skew correction position for blocking the conveyance of the envelope is provided.

Further, in each of the above-described configurations, a plurality of stacking portions for loading the sealed envelopes and a plurality of discharge paths for discharging the envelopes to the stacking portions are provided.

Further, in each of the above configurations, the sealing portion includes a pair of sealing rollers that sandwich the flap together with the envelope body portion, a guide member that guides a folding line forming position of the flap between the pair of sealing rollers, and a pair of A sealing roller moving unit that moves at least one of the sealing rollers in a predetermined direction is provided.

Furthermore, in the said structure, a sealing roller moving part moves a sealing roller, when clamping a flap with an envelope trunk | drum.

Further, in each configuration, the sealing roller moving unit moves the sealing roller in a direction in which the radius of curvature of the envelope increases.

Furthermore, the envelope conveyance device of the present invention includes a conveyance unit that conveys the envelope and a skew correction unit that corrects the skew of the envelope, and the skew correction unit abuts against a side of the envelope. A board is installed.

Furthermore, the sealing device of the present invention includes a transport unit that transports the envelope, a sealant applying unit that applies a sealant to the envelope transported by the transport unit, and a sealing unit that seals the flap of the envelope. The sealing device is provided with a plurality of stacking portions for stacking envelopes after sealing, and a plurality of discharge paths for discharging the envelopes to the stacking portions.

Furthermore, the sealing device of the present invention includes a pair of sealing rollers for sandwiching the flap of the envelope together with the envelope body, a guide member for guiding a folding line forming position of the flap between the pair of sealing rollers, and a pair of A sealing roller moving unit that moves at least one of the sealing rollers in a predetermined direction.

According to the present invention, there is provided a sealing device including a transport unit that transports an envelope, a sealant applying unit that applies a sealant to the envelope transported by the transport unit, and a sealing unit that seals the flaps of the envelope. In addition, a skew correction unit that corrects the skew of the envelope is provided, and an abutting plate that abuts the side of the envelope is installed in the skew correction unit, so that the skew of the envelope is easily corrected. be able to.

Further, when the butting plate is configured to be able to block the conveyance of the envelope in the conveyance path, the skew feeding of the envelope can be corrected when the conveyance of the envelope is stopped.

And if it has a butting plate moving part that moves the butting plate between a standby position where the envelope passes and a skew correction position that interrupts the conveyance of the envelope, the skew of the envelope is easily corrected can do.

Further, when a plurality of stacking sections for loading the sealed envelopes and a plurality of discharge paths for discharging the envelopes to the stacking section are provided, the stacking sections can be divided according to the thickness of the envelope.

Further, the sealing portion includes a pair of sealing rollers that sandwich the flap together with the envelope body portion, a guide member that guides a folding line forming position of the flap between the pair of sealing rollers, and a pair of sealing rollers. When a sealing roller moving unit that moves at least one of the sealing rollers in a predetermined direction is provided, a folding line is formed on the flap, and the sealing roller can be moved when sealing the envelope.

Further, when the sealing roller is moved when the flap is held together with the envelope body portion, the sealing roller moving unit can suppress the envelope from being bent when the envelope is held by the sealing roller.

Furthermore, when the sealing roller is moved in a direction in which the radius of curvature of the envelope increases, the sealing roller moving unit can reduce the amount of bending of the envelope E when the envelope E is sandwiched between the sealing rollers. .

Furthermore, the envelope conveyance device of the present invention includes a conveyance unit that conveys the envelope and a skew correction unit that corrects the skew of the envelope, and the skew correction unit abuts against a side of the envelope. Since the plate is installed, the skew of the envelope can be easily corrected.

Furthermore, the sealing device of the present invention includes a transport unit that transports the envelope, a sealant applying unit that applies a sealant to the envelope transported by the transport unit, and a sealing unit that seals the flap of the envelope. Since the sealing device is provided with a plurality of stacking sections for loading the sealed envelopes and a plurality of discharge paths for discharging the envelopes to the stacking section, the stacking sections can be divided according to the thickness of the envelope.

Furthermore, the sealing device of the present invention includes a pair of sealing rollers for sandwiching the flap of the envelope together with the envelope body, a guide member for guiding a folding line forming position of the flap between the pair of sealing rollers, and a pair of Since the sealing roller moving section that moves at least one of the sealing rollers in a predetermined direction is provided, the sealing roller can be moved when forming a fold line on the flap and sealing the envelope.

It is a longitudinal cross-sectional view which shows schematic structure of the sealing apparatus which concerns on one Embodiment of this invention. It is a top view of the said sealing apparatus. It is a side surface enlarged view of the sealing part of the said sealing apparatus. It is a side view enlarged view of the sealing part of the said sealing apparatus. It is a top view of the sealing apparatus which concerns on other embodiment. It is a figure which shows operation | movement of the said sealing apparatus.

(First embodiment)
1 and 2 show the overall configuration of a sealing device according to the present invention. FIG. 1 is a longitudinal sectional view showing a schematic configuration of the sealing device 1. FIG. 2 is a plan view showing the internal configuration of the sealing device 1. In each figure, the sealing device 1 includes a transport unit 3 that transports an envelope. The transport unit 3 has a substantially horizontal transport path 4. The supply unit 2 for the envelope E is provided on the upstream side of the conveyance path 4. A stacking unit 6 is provided on the downstream side of the conveyance path 4. In the conveyance path 4, a sealing agent applying unit 7, a sealing unit 8, and a skew correction unit 9 are provided. A plurality of envelope detectors 11 are installed in the transport path 4. The envelope conveying device is constituted by a sealing device 1.

(Transport section 3)
The transport unit 3 transports the envelope E supplied from the supply unit 2 to the stacking unit 6. The conveyance unit 3 includes a conveyance roller 31, a conveyance belt 32, and a conveyance driving unit 35. A pair of transport rollers 31 are installed facing the top and bottom of the transport surface of the envelope E.
The conveyor belt 32 is stretched around a pair of belt rollers 33 that are spaced apart from each other by a predetermined amount.

(Supply unit 2)
The supply unit 2 supplies the unsealed envelope E to the conveyance path 4. The supply unit 2 includes a supply base 21, a supply belt 22, and a winding unit 23. A plurality of unsealed envelopes E are stacked on the upper surface of the supply table 21. A placement position corresponding to the size of the envelope E is marked on the supply base 21. The placement position of the envelope E is a position where the folding line forming position of the flap F is the same as the installation position of the guide member 82 described later in the width direction W orthogonal to the transport direction H by the transport unit 3.

The supply belt 22 is embedded at a downstream position of the supply table 21. A plurality of supply belts 22 are arranged in parallel in the width direction W orthogonal to the supply direction of the envelope E. The supply belt 22 is stretched around a pair of front and rear supply rollers 24. The supply roller 24 is installed below the placement surface of the envelope E. The supply roller 24 is installed in the supply direction of the envelope E at a predetermined distance. Of the pair of supply rollers 24 around which the supply belt 22 is stretched, one of the supply rollers 24 is connected to the supply drive unit 26 via a drive transmission mechanism 25 provided at one end in the width direction W. The supply roller 24 is rotated and the supply belt 22 is driven by the drive of the supply drive unit 26.

The winding unit 23 prevents double feeding of the envelope E. The winding unit 23 includes a winding roller 28 and a contact plate 29. FIG. 2 shows a case where one roller 28 is provided. The separation roller 28 is disposed so as to be opposed to the downstream end portion of the supply belt 22a disposed near the center of the width direction W perpendicular to the supply direction of the envelope E. Note that a plurality of the rolling rollers 28 may be arranged in parallel in the width direction W. The roller 28 is urged downward by urging means (not shown). The contact plate 29 is installed on the upstream side of the rolling roller 28. The contact plate 29 is in contact with the side of the envelope E. The contact plate 29 is erected above the supply belt 22 at a predetermined distance.

(Sealing agent application part 7)
The sealing agent applying unit 7 applies a sealing agent to the envelope E. Examples of the sealing agent include glue, adhesive, and water. Water is used when sealing the envelope E in which an adhesive component has been previously applied to the sealing position of the envelope E. The sealant may be in any form of liquid, solid or gel. The sealing agent may be held on a tape or may be sprayed in a mist form.

In the sealing agent application part 7 shown in FIG. 1, the sealing agent is a paste held in a paste cassette 71. The glue cassette 71 accommodates a tape for holding glue. At the lower end of the glue cassette 71, a transfer part 72 for transferring glue to the envelope E is provided. The transfer unit 72 includes a transfer roller 721. In the transfer unit 72, the adhesive holding surface of the tape faces the receiving roller 722 below. The transfer roller 721 sandwiches the flap F of the envelope E with the receiving roller 722.

The glue cassette 71 is held by the cassette holding unit 74. The cassette holding unit 74 holds the glue cassette 71 in a detachable manner. The cassette holding unit 74 is moved up and down by the lifting unit 75. The raising / lowering part 75 raises / lowers the glue cassette 71 between a standby position and a sealing agent provision position.

(Sealing part 8)
The sealing unit 8 seals the flap F of the envelope E. The sealing unit 8 constitutes a sealing device. The sealing unit 8 includes a pair of sealing rollers 81, a guide member 82, and a conveyance belt 32. The sealing roller 81 holds the flap F together with the envelope body T. The pair of sealing rollers 81 includes a first sealing roller 41 and a second sealing roller 42. The first sealing roller 41 and the second sealing roller 42 extend along the transport direction H of the envelope E by the transport belt 32. The first sealing roller 41 is connected to the sealing drive unit 86 via a drive connection mechanism (not shown).

At least one of the pair of sealing rollers 81 is moved in a predetermined direction by the sealing roller moving portion 87. FIG. 3 is an enlarged view of the sealing portion 8 viewed from the downstream side. The sealing roller moving unit 87 moves the sealing roller 81 in a direction in which the radius of curvature of the envelope E increases. At this time, for example, as shown in FIG. 4, the sealing roller moving unit 87 can swing one sealing roller 81 so that the nip N of the envelope E by the pair of sealing rollers 81 is inclined from the vertical direction. it can.

The sealing roller moving part 87 includes a swing part 51, a solenoid 52, a link member 53, a first urging member 55, and a second urging member 56. The swing part 51 includes a shaft support member 58 that rotatably supports a pair of sealing rollers 81. The shaft support member 58 swings the second sealing roller 42 around the rotation shaft 61 of the first sealing roller 41. The urging portion 59 provided at one end portion of the shaft support member 58 on the left side in FIG. 3 is urged toward the lower left by the first urging member 55. The locked portion 60 shown on the right side of the shaft support member 58 in FIG. 3 is locked to the link member 53.

The link member 53 has a shape bent at two locations as viewed from the downstream side. The link member 53 is provided with a locking portion 62, a support shaft 63, a connecting portion 64, and an urging portion 65. The locking portion 62 is provided at one end portion of the link member 53 shown in the upper end portion in FIG. The locking portion 62 locks the locked portion 60 of the shaft support member 58. The engaging shaft 63 is provided in the middle of the link member 53. The link member 53 is rotated around the support shaft 63. The connecting portion 64 is shown at a position below the engaging shaft 63 in FIG. The connecting portion 64 is connected to the solenoid 52. The urging portion 65 is provided at the other end portion of the link member 53 shown in the lower end portion in FIG. The urging unit 65 is coupled to the second urging member 56. The urging portion 65 is urged rightward in FIG. 3 by the second urging member 56.

When the connecting portion 64 is pulled leftward in FIG. 3 by driving the solenoid 52, the link member 53 is rotated by a predetermined angle clockwise C2 in FIG. Thus, the state in which the locking portion 62 at the upper end of the link member 53 locks the locked portion 60 of the shaft support member 58 is released. Then, the shaft support member 58 is swung C1 with the rotation shaft 61 of the first sealing roller 41 directed downward. At this time, the shaft support member 58 swings against the urging force of the first urging member 55. The second sealing roller 42 is swung downward. The plane including the nip N of the envelope E formed between the first sealing roller 401 and the second sealing roller 42 is moved from the vertical direction to the inclined position as shown in FIG.

On the other hand, when the plane including the nip N shown in FIG. 4 is inclined, when the first sealing roller 41 is rotated counterclockwise R1 in FIG. The second sealing roller 42 is moved upward in FIG. 4 by the rotation of the first sealing roller 41.

Accordingly, the second sealing roller 42 moves upward. The nip N of the envelope E by the pair of sealing rollers 81 returns in the vertical direction from the inclined position. Thereafter, the drive of the solenoid 52 is released, and the biasing portion 65 is moved rightward in FIG. 4 by the biasing force of the second biasing member 56. The link member 53 rotates counterclockwise R2 in FIG. 4 with the engaging shaft 63 as an axis. The locking portion 62 of the link member 53 is moved to a locking position where the shaft support member 58 is locked.

The guide member 82 guides the folding line forming position of the flap F between the first sealing roller 41 and the second sealing roller 42. The guide member 82 is installed above the conveying surface of the envelope E. The guide member 82 is disposed so as to face the nip N of the pair of sealing rollers 81 installed below the substantially horizontal conveyance surface. The guide member 82 is swingably supported by an integrally formed support portion 83. The guide member 82 moves in the vertical direction when the support portion 83 is swung around the swing shaft 84 at a predetermined timing by the swing portion 85. The swing part 85 includes a swing drive part 851, a swing cam 852, and an urging member (not shown). As shown in FIG. 3, when the swing cam 852 presses the support portion 83 by driving the swing drive portion 851, the guide member 82 swings toward the nip N against the biasing force of the biasing member. Is done.

(Skewing Correction Unit 9) The skew correction unit 9 corrects the skew of the envelope E. The skew feeding correction unit 9 includes an abutting plate 91, a support shaft 92, and an abutting plate moving unit 94. The abutting plate 91 extends in a direction orthogonal to the conveyance direction H of the envelope E by the conveyance belt 32. The side of the envelope E abuts against the abutting plate 91.

The abutting plate 91 is configured to be able to block the conveyance of the envelope E. The upper end portion of the abutting plate 91 is fixed to the support shaft 92 at a position above the transport surface. The support shaft 92 is rotatably supported on the side plates 13 and 14. The abutting plate 91 is moved between the standby position and the skew correction position by the abutting plate moving unit 94. In FIG. 1, the case where the abutting plate 91 is in the standby position is indicated by a solid line, and the case where it is in the skew correction position is indicated by a two-dot chain line. At the standby position, the abutting plate 91 is inclined at a predetermined angle. At the standby position, the envelope E can pass through the conveyance path toward the stacking unit 6. At the skew correction position, the butting plate 91 extends in the vertical direction, and the conveyance of the envelope E is blocked.

The abutting plate moving unit 94 swings the abutting plate 91 in the vertical direction from the standby position, and closes the envelope E conveyance path. The abutting plate moving part 94 includes a solenoid 95, a link member 96, and an urging member 97. FIG. 1 shows a case where the link member 96 is formed of a rectangular plate material. A central portion in the longitudinal direction of the link member 96 is connected to a solenoid 95. One end of the link member 96 is fixed to the support shaft 92. The other end of the link member 96 is urged downward by the urging member 97.

When the solenoid 95 is driven, the link member 96 is pivoted counterclockwise against the biasing force of the biasing member 97 to the skew correction position indicated by the two-dot chain line in FIG. The Accordingly, the abutting plate 91 is swung from the inclined posture to the posture extending in the vertical direction, and the conveying path 4 is closed.

The abutting plate moving unit 94 may be configured to move the abutting plate 91 in the vertical, horizontal, or inclined directions instead of the configuration in which the abutting plate 91 is swung around the support shaft 92.

(Loading part 6)
The stacking unit 6 is loaded with envelopes E after sealing. A plurality of stacking units 6 are provided. The stacking unit 6 includes a first stacking unit 68 and a second stacking unit 69. The first stacking unit 68 is installed on the side of the transport path 4. The second stacking unit 69 is installed on the downstream side in the conveyance direction H by the conveyance belt 32. A discharge path for discharging the envelope E to the first stacking unit 68 and the second stacking unit 69 is provided.

  The envelope detection unit 11 is installed with a light emitting element and a light receiving element above and below the envelope conveying surface. The envelope detection unit 11 detects the downstream side and the upstream side of the envelope E. The detection signal of the envelope detection unit 11 is sent to the control unit 10.

(Control unit 10)
The control unit 10 controls the operation of the sealing device 1 as a whole. The control unit 10 receives the detection signal from the envelope detection unit 11 and drives the drive unit at a predetermined timing. The control unit 10 starts counting for determining the operation timing in each unit based on the detection signal from the envelope detection unit 11.

(Sealing work)
During the sealing operation, the envelope E is loaded on the supply table 21. The downstream side of the envelope E is in contact with the contact plate 29. The folding line forming position of the flap F is aligned so as to be the same position as the installation position of the guide member 82 in the width direction W. The flap F of the envelope E is placed in an open state. When the supply drive unit 26 is driven, the supply belt 22 travels through the drive transmission mechanism 25 and the supply roller 24. The envelopes E are supplied to the downstream side in order from the lowest level, and are separated one by one by the rolling roller 28.

The control unit 10 receives the detection signal from the envelope detection unit 11. The control unit 10 drives the elevating unit 75 at a predetermined timing when the envelope E reaches the sealing agent applying unit 7 to lower the glue cassette 71 to the sealing agent applying position. The transfer roller 721 presses the adhesive held on the tape against the upper surface of the flap F at the sealing agent application position. When the envelope E is conveyed downstream by the conveyance unit 3, the transfer roller 721 is rotated by friction with the envelope E, and glue is applied to the flap F of the envelope E. At the timing when the upstream side of the envelope E reaches the transfer roller 721 installation position, the elevating unit 75 starts to raise the glue cassette 71 and raises it to the standby position.

Thereafter, the envelope E is conveyed to the sealing unit 8 by the conveying roller 31. The control unit 10 drives the solenoid 95 at a predetermined timing when the envelope E is conveyed to the sealing unit 8. Accordingly, the right end portion in FIG. 1 that is urged by the urging member 97 of the link member 96 swings upward as shown by a two-dot chain line against the urging force of the urging member 97. . Thus, the abutting plate 91 is swung from the inclined posture to the upright posture. The abutting plate 91 blocks the conveyance of the envelope E in the conveyance path 4. The envelope E is transported by the transport belt 32, hits the butting plate 91, and is stopped. After the conveyance of the envelope E is blocked by the abutting plate 91, the control unit 10 stops the traveling of the conveyance belt 32 after a predetermined time has elapsed.

The side of the envelope E comes into contact with the abutting plate 91, and the traveling of the conveying belt 32 is stopped after a predetermined time has elapsed from this contact, so that the direction of the side of the envelope E becomes parallel to the abutting plate 91. . Thus, the skew of the envelope E is corrected. Thus, since the abutting plate 91 that abuts the side of the envelope E is installed in the skew correction unit 9, the skew of the envelope E can be easily corrected.

Further, since the abutting plate 91 is configured to be able to block the conveyance of the envelope E in the conveyance path 4, when the conveyance of the envelope E by the conveyance unit 3 is stopped in order to form a fold line in the flap F of the envelope E. The skew of the envelope E can be corrected. Therefore, skew correction can be performed efficiently. Further, the skew of the envelope E can be corrected immediately before the folding line is formed on the flap F, and the folding line can be formed at a more appropriate position as compared with the case where the skew is corrected at another timing.

In order to form a fold line in the flap F, the control unit 10 drives the swinging part of the guide member 82 and lowers the guide member 82 to a fold line forming position indicated by a two-dot chain line in FIG. Further, the control unit 10 drives the sealing driving unit 86 to rotate the first sealing roller 41. When the first sealing roller 41 is rotated, the second sealing roller 42 is driven to rotate. Then, the control unit 10 drives the solenoid 52. By driving the solenoid 52, the link member 53 is rotated in the clockwise direction C2 in FIG. The locked portion 60 of the shaft support member 58 is not locked by the locking portion 62, and the second sealing roller 42 is swung downward about the rotation shaft 61 of the first sealing roller 41 as an axis. .

As shown in FIG. 4, the folding line forming position of the flap F is sandwiched between the nips N of the pair of sealing rollers 81 in an inclined posture. The control unit 10 further rotates the first sealing roller 41 by a predetermined amount by driving the sealing driving unit 86, so that the flap F is folded. The flap F is nipped by the nip N together with the envelope body T, and is fed a predetermined amount toward the lower left in FIG. Thereby, the sealing agent application position of the flap F is pressed against the envelope body T, and the flap F is closed.

Thus, since the sealing roller moving part 87 for moving the sealing roller 81 in a predetermined direction is provided, a folding line is formed on the flap F, and the sealing roller 81 is moved when the envelope E is sealed. Can do. Since the sealing roller moving unit 87 moves the sealing roller 81 when the flap F is sandwiched with the envelope body T, the envelope E is restrained from being bent by sandwiching the envelope E with the sealing roller 81. can do. Since the sealing roller moving unit 87 moves the sealing roller 81 in the direction in which the curvature radius of the envelope E increases, the amount of curve of the envelope E can be reduced by sandwiching the envelope E with the sealing roller 81. Can do.

If the envelope E is thinner than a predetermined value, the envelope E is discharged to the first stacking unit 68. At this time, after sealing the flap F, the control unit 10 drives the sealing drive unit 86 for a predetermined time and continues the rotation of the sealing roller 81. The envelope E is sent downward from the nip N position by the pair of sealing rollers 81 and is discharged to the first stacking unit 68.

When the envelope body T is not pinched by the sealing roller 81 and should not be discharged to the first stacking portion 68 such as when the envelope E is thicker than a predetermined value or the contents of the envelope E are fragile, the flap F Is adhered to the envelope body T and sealed, and then the sealing roller 81 is reversely rotated. Due to the reverse rotation of the sealing roller 81, the envelope E returns to the conveying belt 32 and assumes a horizontal posture. The control unit 10 turns off the solenoid 95 of the skew feeding correction unit 9. The abutting plate 91 is moved from the skew correction position to the standby position by the urging force of the urging member 97. The control unit 10 causes the transport belt 32 to travel, and discharges the envelope E toward the second stacking unit 69.

Since the butting plate 91 is provided with a butting plate moving portion 94 for moving the butting plate 91 between a standby position where the envelope E is allowed to pass and a skew correction position where the envelope is not conveyed, the skewing of the envelope E can be easily performed. It can be corrected. Since a plurality of stacking sections 6 for loading the sealed envelope E and a plurality of discharge paths for discharging the envelope E to the stacking section 6 are provided, the envelope E can be appropriately folded according to the thickness of the envelope E. And can be discharged to the required stacking unit 6.

As described above, the sealing device 1 of the present embodiment is provided with the skew correction unit 9 that corrects the skew of the envelope E, and the abutting plate 91 that abuts the side of the envelope E on the skew correction unit 9. Therefore, the skew of the envelope E can be corrected appropriately.

(Second Embodiment)
FIG. 5 shows a modification of the sealing device 1. In FIG. 5, the sealing portion 8 a includes a sealing plate 89 instead of the sealing roller 81. The sealing plate 89 is moved by the sealing plate moving unit 88, folds the flap F toward the envelope body T, and seals the envelope E. The sealing plate moving unit 88 includes a link mechanism 67 and a sealing driving unit (not shown).

Further, a broken line forming roller 44 is newly provided. The fold line forming roller 44 is installed between the sealing agent applying part 7 and the sealing part 8a. The folding line forming roller 44 includes a folding blade roller 45 and a receiving roller 46. The folding blade roller 45 is installed above the conveyance surface. A blade edge 47 is provided on the peripheral surface of the folding blade roller 45. The blade edge 47 is formed so as to protrude from the circumferential surface of the roller.

The receiving roller 46 is installed below the conveying surface. A concave groove 48 is formed on the peripheral surface of the receiving roller 46. The cutting edge 47 is inserted into the concave groove 48 via the flap F. The receiving roller 46 is driven and rotated by the rotation of the folding blade roller 45. The peripheral surface of the receiving roller 46 may be formed as a flat surface instead of the concave groove 48.

Further, the transport unit 3 a includes a plurality of transport rollers 34 instead of the transport belt 32. The folding blade roller 45 is fixed to the rotation shaft 36 of the transport roller 34. The folding blade roller 45 is rotated together with the conveyance roller 34 by driving of the conveyance driving unit 35a. In the second embodiment, the thickness detector 12 is provided. The thickness detector 12 detects the thickness information of the envelope N sandwiched between the conveying roller 31 and the separating roller 32. In the sealing device 1a according to the second embodiment, the first stacking portion 68 and the guide member 82 are not provided.

In the sealing device 1a according to the second embodiment, a folding line is formed at a predetermined position of the flap F as the flap F passes between the folding blade roller 45 and the receiving roller 46. At that time, the cutting edge 47 of the folding blade roller 45 is rotated while the flap F is inserted into the concave groove 48 of the receiving roller 46 so that a folding line is formed in the flap F when the envelope E is conveyed downstream. The

As shown in FIGS. 6A to 6C, the envelope E reaching the sealing portion 8a is folded toward the envelope body T by the sealing plate 89 that is rotated by driving the sealing plate moving portion 88. It is. Thereafter, the envelope E is conveyed by the conveying roller 34 to the stacking unit 6a.

  The control unit 10a adjusts the driving amount of the sealing drive unit based on the thickness information detected by the thickness detection unit 12, and adjusts the pressing amount of the sealing plate 89 to the support base 90. Moreover, it may replace with the detection value of the thickness detection part 12, and may control the said press amount based on the thickness information of the envelope input from the operation panel.

  In each of the above embodiments, the abutting plate 91 is configured to be able to block the conveyance of the envelope E in the conveyance path 4, but may be configured to be able to continue the conveyance of the envelope while abutting the side of the envelope. Good. The abutting plate 91 includes an abutting plate moving unit 94 that moves between a standby position where the envelope E is allowed to pass and a skew correction position where the envelope E is not transported. It is good also as a structure which does not.

Further, the guide plates 22 and 22a are provided with a knob 18 and manually moved in the conveyance width direction W, and fixed at a predetermined position by the rotation of the knob 18. However, instead of this, the motor and the driving of the motor are used. It is good also as providing the moving means which moves a guide board to a conveyance width direction.

Moreover, although the case where the conveyance path 4 travels from the supply unit to the stacking unit without traveling backward has been described in the above embodiment, it may be a reciprocal conveyance path having an outward path and a return path. Moreover, although paste was applied to the flap F of the envelope E, a configuration may be adopted in which paste is applied to the envelope body. Moreover, although the envelope supply apparatus was used for the sealing apparatus, it may be used for other processing, for example, post-processing of the sealing machine, or may be used when supplying the envelope to the address and contents confirmation device.

  E envelope, F flap, T envelope body, 1, 1a sealing device, 3 transport unit, 6 stacking unit, 7 sealing agent application unit, 8 sealing unit, 9 skew correction unit, 81 sealing roller, 87 sealing Roller moving part, 82 guide member, 91 butting plate.

Claims (10)

A sealing device comprising: a conveying unit that conveys an envelope; a sealing agent applying unit that applies a sealing agent to an envelope conveyed by the conveying unit; and a sealing unit that seals a flap of the envelope. A sealing device in which a skew feeding correcting portion for correcting a row is provided, and an abutting plate for abutting a side of the envelope is installed in the skew feeding correcting portion. The sealing device according to claim 1, wherein the abutting plate is configured to be able to block the conveyance of the envelope in the conveyance path. The sealing device according to claim 1, further comprising a butting plate moving unit that moves the butting plate between a standby position for allowing the envelope to pass through and a skew correction position for blocking the conveyance of the envelope. The sealing device according to any one of claims 1 to 3, wherein a plurality of stacking sections for stacking envelopes after sealing and a plurality of discharge paths for discharging the envelopes to the stacking section are provided. The sealing part includes at least one of a pair of sealing rollers that sandwich the flap together with the envelope body part, a guide member that guides the position of the folding line of the flap between the pair of sealing rollers, and a pair of sealing rollers. The sealing device according to any one of claims 1 to 4, further comprising a sealing roller moving unit that moves the sensor in a predetermined direction. The sealing device according to claim 5, wherein the sealing roller moving unit moves the sealing roller when sandwiching the flap together with the envelope body. The sealing device according to claim 5 or 6, wherein the sealing roller moving unit moves the sealing roller in a direction in which the curvature radius of the envelope increases. An envelope transport apparatus comprising: a transport unit that transports an envelope; and a skew correction unit that corrects the skew of the envelope, wherein the skew correction unit is provided with a butting plate that abuts a side of the envelope. A sealing device comprising: a transport unit that transports an envelope; a sealant imparting unit that imparts a sealant to an envelope transported by the transport unit; and a sealing unit that seals a flap of the envelope; A sealing device provided with a plurality of stacking sections for loading the envelopes and a plurality of discharge paths for discharging the envelopes to the stacking section. A pair of sealing rollers for sandwiching the envelope flap together with the envelope body, a guide member for guiding a folding line forming position of the flap between the pair of sealing rollers, and at least one of the pair of sealing rollers in a predetermined direction The sealing apparatus provided with the sealing roller moving part to move.

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