TWI719206B - Envelope processing device - Google Patents

Abstract

Envelope processing device that can press envelopes so that they will not shift in a correctly positioned state while carrying and processing, and can increase the throughput.

An envelope processing device is arranged on the outer side of the envelope conveying conveyor belt (4) along the conveying direction of the envelope: a cut-off piece forming unit (6), a tear line forming unit (7), and an unsealing thread attaching unit ( 8), the line pressing unit (9), the line cutting unit (10) that press the line, the envelope conveying conveyor belt is an endless belt conveyor on the upper side and an endless belt on the lower side that clamp the envelope for conveyance Conveyor belt, and the belt on the lower side of the upper endless belt conveyor is pushed on the lower side by a pressing roller. The line attaching unit has: glue attaching part, equipped with Glue-filled glue tank where the thread rolled back by the bobbin passes through and adheres to the glue; and the aforementioned glue sticking part is provided with a pair of heaters for heating and sticking by clamping and heating the glue sticking line along the fold. Mold.

Description

Envelope processing device

The present invention relates to an envelope processing device that forms a tear line on the fold of the flap of the opening of an envelope, attaches the unsealing thread to the tear line, and processes an envelope with the unsealing thread.

The inventors of the present invention have previously applied for an envelope with a thread for opening that can be opened without using scissors (refer to Patent Document 1). In the envelope with unsealing thread described in the aforementioned Patent Document 1, in Figures 11(a) to 11(c), in order to seal the opening of the envelope 51, the fold 53 in which the flap 52 is recessed is It is used to make it easy to tear with the unsealing thread 54 when unsealing, and is formed by a tear line 53, and the unsealing thread 54 is attached with a paste 59 on the tear line 53.

At the corners of the envelope, the cut-out piece 55 to which the opening line 54 is attached is formed by a tear line along the outline of the cut-out piece 55 and can be cut off from the envelope. In addition, in FIG. 11, the arrow indicating the split direction of the cutout piece 55 is formed in braille.

The opening of the aforementioned envelope with the opening thread is shown in Figures 12(a) to 12(c). As shown in Figure 12(a), pinch the cutout piece 55 attached with the opening thread 54 to cut off the envelope. Next, pull the cut off piece 55 apart as shown in Figure 12(b), and use it as shown in Figure 12(c) The tear line of the tear fold 53 is performed with the unsealing thread 54.

The manufacturing of the envelope with the opening thread of the aforementioned Patent Document 1 is as shown in FIG. 13, and the supplied envelope 51 is conveyed by a conveyor belt 56 while being formed by a cut hole forming machine 57 along the fold 53 of the flap. Tear line 53.

Next, a paste coater 58 is used to apply the paste 59 on the tear line 53 formed, and the unsealing line 54 supplied along the applied paste 59 is stretched across while being pressed tightly by the roller 60, and is stretched by the dryer 61 The paste 59 is dried, and the unsealing thread 54 is attached.

Since the attached unsealing thread 54 is continuous and connected, the cutter 62 is cut between adjacent envelopes to cut the unsealing thread 54 and separate the envelope 51.

Next, the flap 52 is bent along the fold with a bending machine 63, and a tear line is formed along the outline of the cut piece 55 by a punch 64 at the corner of the envelope 51 including the bent flap 52 to form a cut.片55. The envelope with unsealing thread processed in this way is to put the letter from the unsealing opening, peel off the release paper 65, bend the flap 52 and seal it with the adhesive layer 66.

In addition, due to the poor appearance of the cutout of the envelope of the aforementioned Patent Document 1, an envelope manufacturing device that can be easily opened with a thread, is more beautiful after opening, and can be stored directly (see Patent Document 2) has also been proposed.

The envelope processing device described in the aforementioned Patent Document 2 includes an envelope feeder that continuously feeds envelopes, a positioning conveyor belt for conveying the fed envelopes at regular intervals, and a thread feeder that applies paste to the tangent line and feeds it. Part, stick the cut line on the lined part of the envelope to dry the paste The drying part and the line cutting part that cuts the tangent line.

[Prior Technical Literature] [Patent Literature]

Patent Document 1 Japanese Patent No. 4039573

Patent Document 2 JP 2009-61712 A

In the envelope manufacturing apparatus of the aforementioned patent document, the envelope is conveyed by a conveyor, and processes such as forming a cutout piece and a tear line through a perforation, and the cross-stretching of the line are performed while conveying the envelope. Therefore, when the conveying speed of the conveyor increases, the positioned envelopes will slide on the conveyor and be conveyed under offset during processing. As a result, it is not only impossible to correctly form a tear line along the crease, apply paste, and attach For wire, there is even a problem that it is impossible to speed up the conveying speed of the conveyor to increase the production volume.

In addition, in the envelope manufacturing apparatus of the aforementioned patent document, it is necessary to arrange a dryer that sprays heated air on the bonding part of the unsealing thread and a drying part equipped with a pressure bonding roller that presses the bonding part. There is a problem of complicated installation.

In addition, in the aforementioned envelope processing apparatus of the aforementioned patent document, since the drying via the dryer requires a certain amount of time, there is a problem that the conveying speed of the conveyor cannot be increased to increase the throughput.

Therefore, the present invention provides to clamp the envelope between the envelope conveyor Envelope processing device that can be processed while being transported while being pressed and positioned so that the folds do not shift.

The invention in the scope of patent 1 of this application is an envelope processing device. The envelope processing device uses a tear line to form a fold that seals the opening of the envelope. The end of the tear line can be cut from the envelope. The cut-off piece for processing envelopes with the opening line attached to the aforementioned tear line and the aforementioned cut-off piece is equipped with: envelope conveying conveyor belt, which is an endless belt conveyor belt on the upper side of the supplied envelope and an endless belt on the lower side The belt conveyor is clamped for conveyance; the positioning unit is to position the aforementioned folds of the envelopes arranged on the entrance side of the aforementioned envelope conveying conveyor belt; the cut-out piece forming unit is arranged in parallel with the aforementioned envelope conveying conveyor belt in order, And forming the aforementioned cut-out piece; the tear line forming unit is to form a tear line in the aforementioned fold; the thread attaching unit is to attach glue to the aforementioned unsealing thread to be attached to the aforementioned tear line; a thread pressing unit, It is to press the attached opening thread; the thread cutting unit is to cut the opening thread between adjacent envelopes to separate the envelopes; and the crease making unit is to make the crease in the aforementioned The tear line is characterized in that: the envelope conveying belt is provided with a belt that presses the lower belt of the endless belt conveyor belt on the upper side of the plurality of rows to the belt on the upper side of the endless belt conveyor belt on the lower side of the plurality of rows The pressing rollers are arranged at the positions of the units arranged in parallel with the envelope conveying conveyor belt in order.

The invention in the scope of the second patent application is the envelope processing device as claimed in item 1 of the scope of the patent application, in which the aforementioned positioning unit is provided with: The piece is moved up and down to stop the loaded envelope; and a pair of rollers clamp the stopped envelope up and down and move and position it in a direction orthogonal to the loading direction.

The invention in the scope of the patent of this application is the envelope processing device of the first or the second item of the scope of the application, wherein the thread attaching unit has: a glue attaching part, which is equipped to pass the thread wound back from the winder The glue tank to which glue is attached; and the thread attaching part are provided with a pair of heater molds which are provided with a pair of heater molds that are pulled out from the glue attached part and adhered along the fold to sandwich the line of glue attached to heat and perform crimping.

The invention in the patent scope 4 of the present application is an envelope processing device as in items 1, 2, or 3 in the scope of the patent application, wherein the line pressing unit is formed by a pair of rollers that sandwich the attached line and rotate. .

The invention in the 5th patent scope of the present application is an envelope processing device as claimed in items 1, 2, 3, or 4 in the scope of the patent application, wherein the aforementioned crease making unit is a pair of pressurized lines that sandwich the attached line The heater mold is made.

The envelope processing device of the present invention is carried by sandwiching the positioned envelope on the upper side conveyor belt and the lower side conveyor belt and pressing the lower side belt of the upper side conveyor belt against the lower side conveyor belt with a pressing belt. With the structure, the envelope can be transported or processed without shifting and correctly positioned, so that the cut-off piece and the tear line can be correctly formed along the fold and the line can be attached. In addition, because there is no offset during envelope transportation, the transportation speed can be increased. Degree, which can increase production.

Since the envelope processing device of the present invention clamps and heats the attached thread by a pair of heater molds, the thread can be attached reliably without drying with a dryer.

The envelope processing device of the present invention can process not only normal straight envelopes but also Western-style envelopes (such as direct mail and other horizontally wide envelopes whose folds are longer than the width of the envelope) if the folding member of the flap is installed. Therefore, no special processing device for Western-style envelopes is required.

1‧‧‧Envelope Manufacturing Device

2‧‧‧Envelope feeding device

3‧‧‧Product gathering device

4‧‧‧Envelope conveying conveyor belt

4a‧‧‧Orbit

4b‧‧‧Feeding roller

4c‧‧‧Upper frame

4d‧‧‧lower frame

4e‧‧‧Supporting member

5‧‧‧Envelope positioning unit

5a‧‧‧Sucker

5b‧‧‧stop

5c‧‧‧roller

6‧‧‧Resection piece forming unit

7‧‧‧Tear line forming unit

8‧‧‧Line attaching unit

9‧‧‧Line pushing unit

10‧‧‧Line cutting unit

11‧‧‧Crease production unit

12‧‧‧Upper conveyor belt

13‧‧‧Lower conveyor belt

14‧‧‧Pushing roller

14a‧‧‧Roller support rod

15‧‧‧Perforation mold

15a‧‧‧Needle

16‧‧‧Putter

17‧‧‧round blade

18‧‧‧Rotating Wheel

19‧‧‧Bending guide

51‧‧‧Envelope

52‧‧‧Blanking

53‧‧‧Folding seam (tear line)

54‧‧‧Opening thread

55‧‧‧Excision piece

56‧‧‧Conveyor belt

57‧‧‧Cut-off hole forming machine

58‧‧‧Paste Coating Machine

59‧‧‧Paste

60‧‧‧roller

61‧‧‧Dryer

62‧‧‧Cutter

63‧‧‧Bending machine

64‧‧‧Puncher

65‧‧‧Release paper

66‧‧‧Adhesive layer

Figure 1 is a schematic plan view showing the arrangement of the envelope processing device of the present invention.

Fig. 2 is a schematic diagram showing the conveying state of envelopes via the conveyor of the envelope processing device of the present invention.

Fig. 3 is a diagram showing a feeding state of envelopes to the envelope processing device of the present invention.

Fig. 4 is a diagram showing the arrangement of the pressing rollers of the conveyor belt of the envelope processing device of the present invention.

Fig. 5 is a schematic view of the cut-out piece forming unit of the envelope processing apparatus of the present invention.

Figure 6 is a schematic view of the tear line forming unit of the envelope processing device of the present invention.

Figure 7 is an outline of the thread attaching unit of the envelope processing device of the present invention Figure.

Figure 8 is a schematic view of the thread pressing unit of the envelope processing device of the present invention.

Figure 9 is a schematic view of the thread cutting unit of the envelope processing device of the present invention.

Fig. 10 is a schematic view of the crease making unit of the envelope processing apparatus of the present invention.

Figure 11 shows an envelope with a line for opening, Figure 11(a) shows a state in which the flap is opened, Figure 11(b) shows a sealed envelope, Figure 11(c) It is a diagram showing the back of a sealed envelope.

Figures 12(a) to 12(c) are diagrams showing the steps of opening an envelope with an opening thread.

Fig. 13 is a schematic diagram showing a manufacturing process of an envelope with an opening thread.

The embodiment of the envelope processing device of the present invention will be described with reference to the drawings.

The envelope processing device of the present invention is like the envelope shown in Fig. 11, and the fold 53 of the flap 52 that seals the opening of the envelope 51 is formed by a tear line respectively, and the end and the fold 53 are formed at the end and The cut-out piece 55 at the corner of the envelope (the end of the opening) is processed into an envelope with the unsealing thread by attaching the unsealing thread 54 to the cut-out piece 55 and the fold 53.

As shown in Figures 1 to 4, the envelope processing device 1 of the present invention is provided with a general-purpose envelope supply device 2 for supplying processed envelopes at the front stage, and a line for opening the envelopes obtained by processing is arranged at the rear stage. An accumulation device 3 that accumulates every predetermined number (for example, 50) of envelopes.

The envelope processing device 1 includes an envelope conveying conveyor 4 that conveys processed envelopes along an envelope processing line.

An envelope positioning unit 5 is arranged on the envelope carrying-in side of the envelope conveying belt 4. The envelope positioning unit 5 sucks and positions the envelopes fed from the envelope feeding device 2 one by one with a suction cup 5 a and feeds the envelopes to the envelope conveying belt 4.

As shown in FIG. 2, in the envelope processing line outside the envelope conveying belt 4, various units 6 to 11 for processing envelopes are movably arranged on a rail 4 a provided along the envelope conveying belt 4. Each unit 6-11 is moved on the rail 4a according to the length of the fold of the envelope, and the processing position is set.

The envelope processing production line is arranged in order: the cut-off piece forming unit 6 that forms the cut-off piece 55, the tear-line forming unit 7 that forms the tear line on the fold 53, and the line for attaching the unsealing thread 54 to which glue is attached. Unit 8, the thread pressing unit 9 that presses the attached unsealing thread 54, the thread cutting unit 10 that cuts the thread between adjacent envelopes 51, the unsealing thread 54 is crimped, and it is in Western style In the case of an envelope, the crease creating unit 11 that creates creases along the fold 53.

From the envelope supply device 2, the unsealing side of the envelope 51 faces up and the fold 53 of the flap 52 is moved toward the processing side to the envelope processing device 1 It is supplied in a fixed interval that is partially overlapped in a stacked shape. The envelope positioning unit 5 arranged on the envelope carrying-in side of the envelope conveying belt 4 is provided with a suction cup 5a for sucking up and transporting the envelope supplied from the envelope feeding device 2, a stopper 5b for stopping the envelope sent via the suction cup 5a, The upper and lower rollers 5c that clamp the envelope stopped by the stopper 5b and move it in a direction orthogonal to the conveyance direction to position the crease, and an optical sensor that detects the position of the crease.

When the stopper 5b is lowered, the envelope positioned by the positioning unit 5 is fed into the envelope conveying belt 4 by the up and down feed rollers 4b arranged on the entrance side of the envelope conveying belt 4.

The envelope 51 fed into the envelope conveying belt 4 is as shown in Figure 4, the fold 53 of each envelope 51 is positioned in a straight line on the processing line, and the interval between adjacent envelopes 51 is empty for later processing steps, that is The unsealing thread 54 attached to and connected to the envelope 51 can be conveyed at an interval (for example, 4 to 5 mm) cut by a cutter.

The envelope conveying belt 4 is, as shown in Figure 3, an upper conveyor belt 12 formed by an endless belt attached to the upper frame 4c for looping, and an endless belt attached to the lower frame 4d for looping. The formed lower conveyor belt 13 is arranged opposite to each other. Except for the fold 53, the supplied envelope 51 is sandwiched between the upper conveyor belt 12 and the lower conveyor belt 13 for conveyance.

The envelope conveying conveyor 4 lowers the upper mold or cutter for processing in order to place the cut sheet forming unit 6, the thread attaching unit 8, and the thread cutting unit 10 in the crease making unit 11 for processing. At this time, the envelope must be stopped first. , So while carrying and stopping the envelopes alternately, intermittently Carry envelopes.

The upper conveyor belt 12 and the lower conveyor belt 13 are constituted by a plurality of rows of belts. In this embodiment, four belts are used. The longitudinally-long envelope is supported and transported by four leather belts, and the horizontally wide Western-style envelope is supported and transported by the two belts on the processing side in the lateral direction.

The upper conveyor belt 12 is provided with a pressing roller 14 that presses the lower belt 12 a downward and presses against the lower conveyor belt 13. The pressing roller 14 is rotatably supported on an L-shaped roller support rod 14a, the roller support rod 14a is a support member 4e movably supported on the upper frame 4c, and the roller support rod 14a is inserted between the belts to adjust the pressure The position where the roller 14 presses the lower belt 12a and the pressing strength. The pressing roller 14 is not only arranged at the position of each processing unit so that the envelope does not shift during processing, but is also arranged at an appropriate position so that the envelope does not shift.

Since the lower belt can be pressed against the lower conveyor belt 13 by the pressing roller 14 and the envelope can be clamped tightly between the upper and lower belts to prevent the deviation of the envelope, the envelope can be correctly positioned. Processing and handling are carried out under.

As shown in Fig. 5, the cut-off piece forming unit 6 formed by the cut-off piece 55 cut at the time of opening is formed by the upper punching die 15 and the lower push rod 16 opposite to it, and moves up and down. The lower side of the perforating mold 15 matches the contour of the cutout piece 55 to set a needle 15a for piercing the tear line of the cutout piece 55. The push rod 16 is formed of a soft material that bears the needle. The end of the fold 53 of the envelope 51 is conveyed between the punching die 15 and the push rod 16, and the punching die 15 is lowered while stopping at the processing position. Discount by falling The slit is centered and the tear line 53 is pierced with the needle 15a to form the cut piece 55 in accordance with the outline of the cut piece 55, and then the envelope is conveyed again.

As shown in FIG. 6, the tear line forming unit 7 that forms the tear line in the fold is composed of a round blade 17 on the upper side and a rotating wheel 18 on the lower side facing the same. The circular blade 17 has a serrated blade 17a on the circumference of which a tear line is formed by rotation. The rotating wheel 18 receiving the blade 17a of the round blade 17 is made of resin, and a groove for receiving the blade 17a is formed. When the fold of the envelope 51 conveyed by the envelope conveying conveyor 4 enters between the round blade 17 and the rotating wheel 18, the round blade 17 and the rotating wheel 18 rotate in accordance with the movement of the fold to continuously form the tear line 53.

As shown in Fig. 7, the thread attaching unit 8 for attaching the unsealing thread 54 to which glue is attached is composed of a glue attaching portion 8a that attaches the glue to the unsealing thread, and the unsealing thread 54 to which the glue is attached. The thread attaching portion 8b attached to the tear line 53 is formed. The glue attaching part 8a is provided with a glue tank 8d filled with glue 8c, and the unsealing thread 54 is wound back from the winding device 8e, and the glue 8c is attached to the unsealing thread 54 through the glue groove 8d. The thread attaching part 8b is equipped with heater molds 8f and 8g up and down, and the heater mold 8f on the upper side moves up and down to affix the unsealing thread 54 with the glue 8c attached along the tear line at a high temperature (about 120°C). The heater mold 8g on the side is crimped and heated to perform bonding. Since the unsealing wire 54 is crimped and heated between the heater molds 8f and 8g, it is possible to reliably perform attachment and drying in a short time without providing a drying device.

As shown in Fig. 8, the thread pressing unit 9 that presses the attached unsealing thread 54 and pulls the thread is provided with rollers 9a and 9b up and down. The unsealing thread 54 attached by the thread attaching unit is crimped between the rollers 9a and 9b to prevent the attached thread from being pulled and peeled off while the envelope is moved. If the attachment is not sufficient, the opening thread may peel off due to the movement of the envelope, and the thread cannot be pulled out. Therefore, by pressing the pressing unit 9 to move the envelope without separating the thread, the thread can be pulled. Out.

As shown in FIG. 9, the thread cutting unit 10 that cuts the unsealing thread 54 between adjacent envelopes is provided with a cutting blade 10 a for cutting the inclined blade of the unsealing thread 54. Since the adjacent envelopes 51 are connected by the unsealing thread 54 attached, the cutter is cut from above into the space between adjacent envelopes (4 to 5 mm) to cut the unsealing thread 54.

The line cutting unit 10 cuts the unsealing line 54 and heats and presses the unsealing line attached along the tear line 53 of the separated envelope, or, in the case of Western-style envelopes, further arranges creases to make creases Production unit 11. As shown in FIG. 10, the crease creation unit 11 includes heater molds 11a and 11b heated to approximately 50°C. The heater mold 11a on the upper side moves up and down and heats and compresses the unsealing wire. With the crease making unit 11, the opening thread is completely attached, and creases can be made in the case of Western-style envelopes.

When processing Western-style envelopes, a bending guide 19 that bends the flap 52 toward the sealing side is installed on the entrance side of the crease making unit 11, and the moving flap 52 has a curved shape gradually bent toward the sealing side and lowered in height. . The sealing tongue 52 is supplied to the fold making unit 11 in a state of being bent along the guide and finally folded in half, and is pressurized by the heater molds 11a and 11b.

After the folds are made, the envelopes are stacked by a predetermined number to form a stacking device 3 and are accumulated.

The envelope processing operation performed by the envelope processing device constructed as described above will be described. The envelopes fed from the envelope feeding device are positioned by the envelope positioning unit on the envelope carrying-in side of the envelope conveying conveyor 4 so that the folds of each envelope are in a row, and then they are fed to the envelope conveying conveyor 4.

Envelopes positioned at intervals and folds in a row are held between the upper conveyor belt 12 and the lower conveyor belt 13 of the envelope conveying conveyor 4 for a fixed period of time while being tightly clamped by the pressing roller 14 Move and stop repeatedly at intervals to carry intermittently.

When the intermittently conveyed envelope reaches the stop of the cutout piece forming unit 6, the upper punching die 15 is lowered to punch a tear line at the corner of the envelope to form a cutout piece.

Next, a tear line is continuously formed by the fold of the envelope between the round blade 17 of the tear line forming unit 7 and the rotating wheel 18.

In the line attaching unit 8, the unsealing line 54 to which the glue is attached is stretched across the line attaching portion 8b between the heater molds 8f and 8g above and below the line attaching portion 8b, and the envelope reaches one of the heater molds 8f, 8g. While stopping, pressurizes between the upper heater mold 8f and the lower heater mold 8g, and performs heating and pressure bonding at 120°C for bonding.

The unsealing thread 54 attached by the thread attaching unit 8 is further crimped between the rollers 9a and 9b of the thread pressing unit 9 to securely attach and prevent the attached thread from being pulled and peeled off.

Next, when the gap between adjacent envelopes reaches the line cutting unit 10 and is stopped, the cutting knife is cut from above to cut the continuous unsealing line 54 Cut to separate the envelope.

When the separated envelope reaches between the heater molds 11a and 11b heated to about 50°C of the crease making unit 11 and is stopped, the attached unsealing wire is heated and pressure-bonded for the sake of prudence.

In addition, in the case of processing Western-style envelopes, when the bending guide 19 is installed on the entrance side of the crease making unit 11 to bend the flap 52 and fold it in half, the heater mold 11a of the crease making unit 11, 11b is heated and pressurized, and the creases that are folded in half can be made surely.

The envelopes passing through the crease making unit 11 are stacked by a predetermined number in an overlapping shape and are accumulated in the accumulating device 3.

1‧‧‧Envelope Manufacturing Device

2‧‧‧Envelope feeding device

3‧‧‧Product gathering device

4‧‧‧Envelope conveying conveyor belt

4a‧‧‧Orbit

5‧‧‧Envelope positioning unit

5b‧‧‧stop

5c‧‧‧roller

6‧‧‧Resection piece forming unit

7‧‧‧Tear line forming unit

8‧‧‧Line attaching unit

9‧‧‧Line pushing unit

10‧‧‧Line cutting unit

11‧‧‧Crease production unit

51‧‧‧Envelope

52‧‧‧Blanking

53‧‧‧Folding seam (tear line)

Claims (5)

An envelope processing device for processing envelopes. The envelope uses a tear line to form a fold that seals the opening of the envelope. A cutout piece that can be cut off from the envelope is formed at the end of the tear line. The tear line and the cut-off piece are attached with an opening line, and the envelope processing device is equipped with an envelope conveying conveyor belt, which clamps the endless belt conveyor belt on the upper side of the supplied envelope and the endless belt conveyor belt on the lower side. Carrying; the positioning unit is to position the aforementioned folds of the envelopes arranged on the entrance side of the aforementioned envelope conveying conveyor belt; the cut-out piece forming unit is sequentially arranged in parallel with the aforementioned envelope conveying conveyor belt, and forms the aforementioned cut-out piece; The tear line forming unit is to form a tear line in the aforementioned fold; the thread attaching unit is to attach glue to the aforementioned unsealing thread to be attached to the aforementioned tear line; the thread pressing unit is to attach the aforementioned The opening is pressed by a thread; the thread cutting unit is to cut the aforementioned opening thread between adjacent envelopes to separate the envelopes; and the crease making unit is to make the crease on the aforementioned tear line, its characteristics Said envelope conveying belt is provided with a pressing roller which presses the lower belt of the upper endless belt conveyor belt of the plurality of rows against the upper belt of the endless belt conveyor belt on the lower side of the plural rows, and the said pressing roller It is arranged in the position of each unit arranged in parallel with the aforementioned envelope conveying belt in order. For example, the envelope processing device of item 1 of the scope of patent application, wherein the aforementioned positioning unit is equipped with a stopper that moves up and down to carry in Envelope stop; and a pair of rollers, which clamp the stopped envelope up and down and move and position it in a direction orthogonal to the loading direction. For example, the envelope processing device of item 1 or item 2 of the scope of patent application, wherein the thread attaching unit has: a glue attaching part, which is provided with a glue tank that allows the thread wound back from the winder to pass through and attach the glue; And the thread attaching part is a pair of heater molds equipped with a pair of heater molds that are pulled out from the glue attaching part and adhered along the fold to sandwich the lines of the attached glue to heat and perform crimping. For example, in the envelope processing device of item 1 or item 2 of the scope of patent application, the line pressing unit is formed by a pair of rollers that sandwich the attached line and rotate. For example, in the envelope processing device of item 1 or item 2 of the scope of patent application, the crease making unit is formed by a pair of heater molds that sandwich the attached thread and pressurize it.

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