JP5893279B2 - Enclosed sealing device - Google Patents

Description

  The present invention relates to a sealing device that nips and seals a pressure-bonding region in an envelope filled with a desired sealing material, and can particularly press-bond an envelope with an appropriate nip pressure according to the thickness of the envelope at the time of sealing. The present invention relates to a sealing device.

  2. Description of the Related Art Conventionally, there has been known an encapsulating device that encloses an enclosed material in an envelope produced by folding an envelope sheet and performs sealing. Further, in this type of sealing device, a pressure-sensitive adhesive is used as a sealing adhesive in order to prevent the occurrence of deformation of the envelope and a decrease in rigidity.

  In this type of sealing device, when the envelope is sealed while the gap between the nip rollers is fixed and the nip pressure is kept constant, the number of sealed materials, folding of the sealed material or envelope paper is reduced. Depending on the production conditions of the sealed letter such as the direction or paper quality, there is a possibility that the bonded portion is not nipped with an appropriate nip pressure.

  That is, in the case where the number of inclusions becomes large and the envelope thickness increases more than usual, the envelope cannot pass through the gap between the nip roller and the conveyance path, and a jam occurs. On the contrary, in the case where the inner surface of the envelope paper is printed and the inclusion is not sealed, the thickness of the envelope becomes thinner than usual, so that the crimping area is not sufficiently nipped by the nip roller, resulting in poor crimping. There was a problem.

  Therefore, in order to solve such a problem, the sealed sealing device disclosed in the following Patent Document 1 includes a gap adjusting mechanism that adjusts the gap between the nip rollers and the contact pressure, and is appropriate according to the thickness of the envelope. The gap between the rollers can be adjusted so as to obtain an adhesive strength.

JP 2010-195422 A

  In the sealed sealing device disclosed in Patent Document 1, the operator manually rotates the adjusting screw to move the nip roller up and down to adjust the gap between the nip rollers. For this reason, for example, when a job is executed to change the number of inclusions according to the address of the envelope, the gap between the nip rollers is finely adjusted according to the envelope thickness each time the envelope thickness changes. It had to be complicated. Moreover, it is difficult for an unfamiliar worker to adjust the nip pressure of the nip roller according to the thickness of the envelope in such a use situation.

  Therefore, the present invention has been made in view of the above problems, and an enclosing sealing device capable of nipping with an appropriate nip pressure according to the thickness of the envelope at the time of sealing without bothering the operator's hand. It is intended to provide.

In order to achieve the above-described object, the sealing device according to claim 1 includes a pair of flap nip rollers that nip a flap bonding portion that is a bonding portion between an envelope body and a flap in an envelope formed by folding envelope paper ,
In an encapsulating sealing apparatus for producing a sealed letter by pressure-sealing the adhesive portion in a state in which an enclosure is enclosed in the envelope ,
A thickness information acquisition unit for acquiring information indicating the thickness of the sealed letter before sealing as thickness information;
Crimping in which a plurality of crimping control conditions defined according to the number information of the inclusions are corrected by correction values based on the sheet information of the inclusions, the folding information of the inclusions, and the folding information of the envelope sheets, respectively. A storage unit for storing control information by thickness in which the control information is tabulated;
In order to collate the thickness information acquired by the thickness information acquisition unit with the thickness-specific control information stored in the storage unit, and to control the flap nip roller pair according to the thickness information A crimping control information acquisition unit for acquiring the crimping control information of
Based on the crimping control information from the previous SL crimping control information acquisition unit, and a control unit for variably controlling the nip pressure of said flap nip rollers,
It is provided with.

The enclosure sealing device according to claim 2 is the enclosure sealing device according to claim 1, wherein when the control unit nips the flap adhesion portion with the flap nip roller pair, a nip pressure defined by the pressure-bonding control information. It is characterized by controlling the crimping with

According to a third aspect of the present invention, in the sealed sealing device according to the first or second aspect, the control information for each thickness is determined by the appropriateness of the flap nip roller pair in accordance with the thickness of the sealed letter before sealing. Information to define the rotational speed
The control unit variably controls the nip pressure of the flap nip roller pair and the rotation speed of the roller based on the crimp control information from the crimp control information acquisition unit.

According to the enclosing and sealing apparatus according to claim 1 Symbol mounting, the thickness of the sealed letter to produce even when a job that varies by such number of inclusions in each case, be adjusted according to the envelope thickness There is no need, and the flap adhesive part of the envelope can be nipped at an appropriate nip pressure based on the production conditions of the automatically produced envelope.

According to the sealing device of claim 2, since the nip pressure is controlled so that the nip pressure corresponding to the thickness of the sealed letter is applied at least when the flap bonding part is pressed, unnecessary pressure is applied to the envelope. Without being added, it is possible to prevent the envelope from being damaged by the nip.

According to the sealing device of the third aspect , in addition to the variable control of the nip pressure according to the thickness of the sealed letter to be produced, the rotational speed of the pair of flap nip rollers is also variably controlled. It can be performed.

It is a schematic block diagram of a sealed letter preparation apparatus provided with the sealing device according to the present invention. It is explanatory drawing which shows an example of an envelope paper. It is a functional block diagram which shows the system configuration | structure of the enclosure sealing apparatus of this example. (A) is a schematic perspective view which shows the structure of the pressure mechanism of this apparatus, (b) is a schematic side view which shows the structure of the pressure mechanism. It is a control table which shows the relationship between the nip pressure by the number of enclosures, and speed ratio. (A) is a correction condition table showing the relationship between the thickness of the paper and the correction value, (b) is a correction condition table showing the relationship between the way the enclosure is placed and the correction value, and (c) is the envelope paper. It is a correction condition table showing the relationship between the folding method and the correction value. It is a table | surface which shows the relationship between the nip pressure and speed ratio for every pattern based on the correction value. It is a control waveform pattern which shows the relationship between the nip pressure for every pattern in a pressure mechanism, and flap adhesion part passage time.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings. In addition, the present invention is not limited by this embodiment, and all other forms, examples, operation techniques, and the like that can be implemented by those skilled in the art based on this form are included in the scope of the present invention. .

[1. About sealed letter preparation device]
First, a sealed letter preparation apparatus 200 provided with the sealed sealing apparatus 1 according to the present invention will be described. The following description is an embodiment of a sealed letter preparation apparatus 200 configured by connecting a sealed sealing apparatus 1 according to the present invention and a printing apparatus 50 for printing a sealed material and envelope paper Ea.

  As shown in FIG. 1, the sealed letter preparation apparatus 200 performs common printing on the envelope paper Ea that is folded into an envelope shape and the inclusion that is a sheet-like paper so as to perform processing for each sealed letter to be produced. Necessary printing is performed in an appropriate order using the apparatus 50. Then, the envelope paper Ea and the inclusions after printing are sent to the sealing device 1 and are conveyed along different conveyance paths, while the envelope paper Ea is folded so that the envelope paper Ea is in the form of the envelope E. Fold the inclusions as necessary. And finally, both are joined by an enclosing sealing means (an enclosing portion 130 and an enclosing portion 140 to be described later), and the encapsulated material is encapsulated in an envelope E, and is arranged and discharged as a completed envelope at the top of the apparatus. In addition, the arrow shown in each part has shown the conveyance direction of the envelope E formed by the paper, the envelope paper Ea, and the folding process.

[2. About envelope paper]
The envelope paper Ea used in the encapsulating and sealing apparatus 1 of this example is a rectangular paper in which at least two pieces of paper are connected by a crease so as to wrap the inclusion at the time of molding. FIG. 2 shows an example of envelope paper Ea, which is a three-fold envelope paper Ea made up of three paper pieces: a first paper piece Eb, a second paper piece Ec, and a third paper piece Ed.

  In FIG. 2, a pressure-sensitive adhesive Ef is provided in a strip shape on both edges (hereinafter referred to as “side portions Ee”) in the width direction on the front surface or the back surface of each paper piece constituting the envelope paper Ea. These pressure-sensitive adhesives Ef are appropriately arranged so that when the paper pieces are folded and assembled into the shape of the envelope E, the pressure-sensitive adhesives Ef of the corresponding paper pieces come into contact with each other and come into contact with each other. ing. In addition, a portion (hereinafter referred to as a “flap bonding portion”) that is a pressure-bonding region that is in contact with the back surface of a paper piece (hereinafter referred to as “flap Eg”) that is inside the side portion Ee of the paper piece and serves as a flap that is folded in the final folding step Eh ”) is provided with a pressure sensitive adhesive Ef in a strip pattern along the width direction.

  The pressure-sensitive adhesive Ef is a type of adhesive that exerts an adhesive force by bringing the pressure-sensitive adhesive Ef provided on the paper into close contact with each other and applying a predetermined pressure. For example, a two-pack type using microcapsules And natural rubber adhesive materials are known.

  In addition, you may use the pressure sensitive adhesive Ef which exhibits adhesive force with a different pressure by the side part Ee and the flap adhesion part Eh, and the arrangement pattern of each pressure sensitive adhesive Ef is the paper size to be used, paper quality, It is arbitrarily set according to conditions such as folding method.

[3. About printing device]
As shown in FIG. 1, the printing apparatus 50 is an apparatus that prints and discharges the envelope paper Ea and the paper that becomes the inclusion, and a plurality of types of paper (encapsulation) are provided inside or on the side of the housing that houses each part. A plurality of paper feed trays 51 capable of storing sheet-like paper and envelope paper Ea), a loop-like conveyance path 53 for conveying the paper from the introduction path 52, cyan (C), black (K), Printing means 54 including four ink jet devices C, K, M, and Y for ejecting magenta (M) and yellow (Y) inks, respectively, and a first discharge path 55 for discharging paper to the enclosing and sealing device 1 A second discharge path 56 that discharges the sheet out of the loop, and a switchback path 57 that reverses the sheet after receiving the sheet conveyed through the conveyance path 53 and returns the sheet to the conveyance path 53 so as to turn the sheet upside down. It is equipped with.

[4. About enclosed sealing device]
(4-1. Outline of device)
As shown in FIG. 1, the enclosing and sealing device 1 receives an envelope paper Ea sent from the first discharge path 55 of the printing device 50 and a paper to be an inclusion, and encloses the envelope E in which the envelope paper Ea is folded. Is a device for sealing and sealing.

  More specifically, a first folding means is provided at the end of the first transport path 110, which is a guide path for the envelope paper Ea transported from the printing apparatus 50, and folds the envelope paper Ea to produce the form of the envelope E ( A main folding roller A ′, a sheet conveying roller D ′, and a first folding roller B ′), and a guide path for inclusions (sheets) branched from the first stage of the first conveying path 110 and conveyed from the printing apparatus 50 And a second folding means (consisting of a main folding roller A, a first folding roller B, a second folding roller C, and a sheet conveying roller D) provided at the end of the second conveying path 120 for folding the sheet. The third folding means is provided at the junction of the first conveyance path 110 and the second conveyance path 120 and further folds the envelope paper Ea as necessary, and the inclusion is put on the folded envelope paper Ea. Add more folds after alignment A sealing portion 130 (including a main folding roller A ″, a paper conveying roller D ″, and first and second folding rollers B ″ and C ″) for performing a sealing process for enclosing the sealed material in the envelope E, A sealing part 140 provided with a pressure-bonding mechanism 3 for performing pressure-sensitive adhesive sealing by applying a pressure by nip-applying a pressure-sensitive adhesive Ef application site in the envelope E in which the inclusion is enclosed; A discharge table 150 that is provided on the upper surface and sequentially stacks the sealed letters that have been sealed and sealed, a discharge transport unit 160 that transports the sealed letters to the discharge table 150, and each mechanism of the sealed sealing device 1 and the printing device 50 is controlled. And a common storage unit 180 that stores drive control information and the like necessary for driving and controlling the respective units of the printing device 50, the encapsulating and sealing device 1, and the printing device 50.

  Note that the control unit 170 performs the sealing process control by the crimping mechanism 3 which is the main part of the present invention in addition to the drive control of each constituent element in the sealing and sealing device 1 and the printing device 50 described above. Will be described in detail later as a system configuration (control unit 6) in the encapsulating and sealing apparatus 1. Further, since the storage unit 180 also stores various types of information related to the sealing process performed by the pressure-bonding mechanism 3, it will be described in detail in the system configuration (storage unit 4) in the sealed sealing device 1.

In the sealed sealing device 1 of the present example, the thickness of the envelope before sealing, which is produced by encapsulating the sealed material in the envelope E formed by folding the envelope paper Ea, or printing directly on the envelope paper Ea The thickness of the envelope before sealing produced by molding from the processed envelope paper Ea is detected, and the envelope E is nipped with an appropriate nip pressure according to this thickness, and sealing processing is performed.
Hereinafter, a system configuration relating to sealing processing of the sealing device 1 will be described.

(4-2. System configuration for sealing processing)
Next, a system configuration relating to sealing processing in the sealed sealing device 1 of this example will be described. As shown in FIG. 3, since the sealing device 1 according to the present invention performs sealing processing with an appropriate nip pressure in accordance with the thickness of the sealed letter before sealing, a thickness information acquisition unit is used as its system configuration. 2, a crimping mechanism 3, a storage unit 4, a crimping control information acquisition unit 5, and a control unit 6.

  In addition, although the memory | storage part 4 and the control part 6 are the structural examples in which the control part 170 and the memory | storage part 180 of the sealed letter preparation apparatus 200 cover the function as mentioned above, You can also

  Thickness information acquisition unit 2 includes information indicating the thickness of the sealed letter before sealing to be produced among the sealed letter preparation information, which is the preparation condition of the sealed letter (number of inclusions, paper information of inclusions (basis weight), encapsulation Crimping control information acquired from the outside (for example, an external terminal such as a PC, an external device such as the printing apparatus 50, or a setting input operation by a user) as thickness information, such as how to fold an object, how to fold envelope paper Ea, etc. The data is output to the acquisition unit 5.

As another configuration example of the thickness information acquisition unit 2, in addition to acquiring the envelope preparation information acquired from the outside as the thickness information, the thickness information of the envelope E can be acquired by the following configurations.
(1) The structure which arrange | positions the permeation | transmission sensor comprised with a light projector / receiver in the front | former stage of the crimping | compression-bonding mechanism 3, optically detects the actual thickness of the sealed letter before sealing and acquires thickness information.
(2) The structure which measures the electric current value of the conveyance roller which conveys the envelope E just before sealing, and acquires thickness information according to the actual thickness of the sealed letter before sealing conveyed from this electric current value.
In addition, the thicknesses of the envelope E can be detected in more detail by arbitrarily combining the configurations (1) and (2) with the configuration for acquiring the envelope preparation information from the outside.

  As shown in FIG. 4A or 4B, the pressure-bonding mechanism 3 is provided on a conveyance path that connects between the sealing portion 130 and the discharge conveyance portion 160, and flaps that nip the flap adhesion portion Eh of the envelope E The nip roller pair 3 </ b> A and the side nip roller pair 3 </ b> B that nips the side portion Ee of the unsealed envelope E that encloses the inclusions.

  The pair of flap nip rollers 3A is made of a highly rigid metal so that a predetermined pressure can be applied to the pressure-sensitive adhesive Ef in the flap bonding portion Eh of the envelope E, and its axial length is the side of the envelope paper Ea. It is shorter than the width between the parts Ee. The pair of flap nip rollers 3A is provided on the conveyance surface side of the envelope E, and moves vertically in the direction perpendicular to the conveyance surface to adjust the nip pressure with respect to the envelope E, and the back surface side of the conveyance path. And a pair of upper and lower driving side flap nip rollers 3Ab that rotate the envelope E in the feeding direction, and are arranged opposite to each other across the conveyance path.

  The side nip roller pair 3B is disposed on the upstream side of the flap nip roller pair 3A, and is made of a highly rigid metal so that a predetermined pressure can be applied to the pressure-sensitive adhesive Ef of the envelope E in the same manner as the flap nip roller pair 3A. . The side nip roller pair 3B has a wheel shape having a pair of left and right rollers, and the width of each roller is larger than the application width of the pressure sensitive adhesive Ef provided on the side portion Ee in the width direction of the envelope paper Ea. small. Further, the rollers are disposed along the width direction of the envelope E so that the interval between the rollers is larger than the width of the enclosed material and smaller than the width of the envelope E. The side nip roller pair 3B having such a shape is provided on the conveyance surface side of the envelope E, and is moved vertically in the direction perpendicular to the conveyance surface to adjust the nip pressure with respect to the envelope E. Each side portion Ee in the width direction of the envelope E, which is provided on the back side of the transport path and is composed of a pair of upper and lower driving side nip rollers 3Bb that rotate the envelope E in the feeding direction, Nip is applied from above and below to apply pressure.

  The pressure applied to the envelope paper Ea by the side nip roller pair 3B and the flap nip roller pair 3A can be, for example, about 700 N / cm depending on the type of the pressure sensitive adhesive Ef. The arrangement positions of the side nip roller pair 3B and the flap nip roller pair 3A may be reversed.

  The storage unit 4 is composed of, for example, a rewritable semiconductor memory such as ROM or RAM, an HDD, or the like, and stores control information of each unit that drives the enclosing / sealing device 1. Further, the storage unit 4 stores the following tables as thickness-specific control information in which information on the thickness of the sealed letter before sealing and information on the nip pressure control amount suitable for the thickness are tabulated. doing.

  Specifically, as shown in FIG. 5, a basic control information table is stored in which a nip pressure ratio and a roller rotational speed ratio corresponding to the number of enclosed objects are divided into a plurality of patterns. Further, as shown in FIG. 6, the storage unit 4 stores a correction condition table in which the thickness information from the thickness information acquisition unit 2 and correction values corresponding to the thickness information are tabulated. . Further, as shown in FIG. 7, the storage unit 4 stores a crimping control information table divided into patterns for each nip pressure ratio and roller rotational speed ratio corrected based on the basic control information table and each correction condition table. ing.

  Here, the basic control information table, the correction condition table, and the crimping control information table, which are the control information by thickness stored in the storage unit 4, will be described. It should be noted that each value defined in each table is an example derived based on an experimental result obtained in advance by an experiment or the like, and needless to say, the value is appropriately changed depending on the use environment and conditions.

(Basic control information table)
As shown in FIG. 5, the basic control information table includes the pressure control conditions (nip pressure ratio and roller rotation speed ratio) defined in accordance with the number information of the inclusions in the thickness information, and each correction value in the correction condition table. This is a table in which basic values to be corrected are associated with each other.
In the illustrated example, the basic control information is divided into four patterns. “1” to “4” for “no inclusion”, “1 sheet”, “2 to 3 sheets”, and “4 to 5 sheets”, respectively. Are assigned as basic values, “no inclusion” is the default value, and as the number of inclusions increases, an appropriate nip pressure ratio and roller rotation speed ratio are specified.

(Correction condition table)
As shown in FIG. 6, the correction condition table is a table in which correction values corresponding to the conditions are tabulated for the sheet information of the inclusion in the thickness information, the folding information of the inclusion, and the folding information of the envelope paper Ea. It is. The correction value in each table is a value added to the basic value assigned to the basic control information (in this example, “1” to “4”).
As shown in FIG. 6A, the correction value based on the paper information of the enclosed material is “thin paper” (basis weight) when the paper (applicable paper basis weight: 49 g / m ^{2 to} 120 g / m ² ) used for the enclosed material is used. the ^{amount: 49g / m 2 ~61g / m} 2), "standard" (basis ^{weight: 62g / m 2 ~99g / m} 2), either by "thick paper" ^{(100g / m 2 ~120g / m} 2), The correction values are defined as “−1”, “0”, and “1”, respectively.
-As shown in FIG. 6 (b), the correction value based on the information on how to fold the inclusion is determined according to whether the inclusion is folded by "none or two-fold", "inner three-fold" or "four-fold". The correction values are defined as “0”, “1”, and “2”, respectively.
As shown in FIG. 6C, the correction value based on the folding method information of the envelope paper Ea is defined as “0” or “1” depending on one of “three folds” and “four folds”. doing.

(Crimping control information table)
As shown in FIG. 7, the crimping control information table is based on the basic control information selected based on the number information of the inclusions in the sealed letter creation information, the sheet information of the inclusions in the thickness information, and how to fold the inclusions And the addition value obtained by adding the correction values of the correction condition tables according to the folding information of the envelope paper Ea, and the pressure control conditions (nip pressure ratio and roller rotation speed ratio) according to the thickness information conditions ) And a table.
In the illustrated example, based on the four patterns of the basic control information table, nine crimping control information in which the addition values (0 to 9) obtained by adding the correction values of the respective correction condition tables are associated with the crimping control conditions are used.

  The crimping control information acquisition unit 5 receives the thickness information from the thickness information acquisition unit 2 and the thickness-specific control information (basic control information table, correction condition table, and crimping control information table) stored in the storage unit 4. The crimping control information corresponding to the thickness of the envelope E is output to the control unit 6.

  Specifically, the basic value corresponding to the number of inclusions is selected by comparing the number information of the inclusions in the thickness information with the basic control information table stored in the storage unit 4. Next, the crimping control information acquisition unit 5 includes the sheet information of the inclusion in the thickness information, the folding information of the inclusion and the folding information of the envelope paper Ea, and each correction condition table stored in the storage unit 4. Collation is performed, and a correction value corresponding to each condition is added to the selected basic value to calculate an added value. Then, the added value and the crimping control information stored in the storage unit 4 are collated, and the crimping control information corresponding to the added value is selected and output to the control unit 6.

  The control unit 6 is a microcomputer composed of, for example, a CPU, a ROM, a RAM, and the like, and performs drive control of each part of the enclosing / sealing device 1 such as drive control related to the nip processing of the side nip roller pair 3B. Further, the control unit 6 determines an appropriate nip pressure based on the thickness of the envelope E based on the position information of the flap adhesion part of the sealed letter preparation information acquired at the time of preparing the sealed letter and the pressure control information from the pressure control information acquiring part 5. The flap nip roller pair 3A is driven and controlled so that the rotational speed of the roller is the same.

FIG. 8 shows an example of a control waveform pattern in the drive control state of the flap nip roller pair 3 </ b> A based on the drive control signal output from the control unit 6.
In the illustrated example, as the drive control of the flap nip roller pair 3A, the position of the flap adhesion portion Eh is grasped by the position information of the flap adhesion portion Eh in the letter preparation information. Next, regardless of the selected crimping control information, the envelope E is first nipped at a predetermined nip pressure, and the nip pressure is gradually increased as the flap adhering portion Eh approaches the crimping position of the flap nip roller pair 3A as it is conveyed. . When the flap bonding portion Eh reaches the flap nip roller, the nip pressure defined by the pressure-bonding control information (that is, the maximum nip pressure corresponding to the envelope E to be nipped) is set, and the flap bonding is performed with this nip pressure applied. Control is performed so that the nip is gradually released after the portion Eh has passed through the crimping position for a predetermined time.

  As each control waveform pattern in the figure shows, the strength of the nip pressure and the rotation speed of the roller differ depending on the thickness of the sealed letter before sealing, so the nip pressure increases as the sealed letter becomes thicker, It can be seen that the flap bonding portion Eh has a longer time for passing the crimping position of the flap nip roller pair 3A.

  In addition, the pressure-bonding control of the flap adhesion part Eh by the flap nip roller pair 3 grasps the position of the flap adhesion part Eh from the position information of the flap adhesion part Eh in the letter preparation information, and at least an appropriate nip pressure is applied to the flap adhesion part Eh. Thus, by adjusting and controlling so that only a portion of several centimeters before and after the flap adhering portion Eh of the envelope E to be conveyed is nipped with a nip pressure corresponding to the thickness of the sealed letter before sealing, it is unnecessary. There is an effect that the pressure is not applied to the envelope E and the envelope E is prevented from being damaged.

<4-3. Processing action>
Next, the sealing processing operation of the above-described sealed sealing device 1 will be described along a series of sealed letter preparation processing operations in the above-described sealed letter preparation device 200. Here, as the thickness information, the number information of the inclusions is “1”, the sheet information of the inclusions is “standard”, the folding information of the inclusions is “folded in three”, and the folding information of the envelope paper Ea is “ This is an example in which sealing processing is performed as a configuration in which the sealed letter preparation information “tri-folded” is acquired from the printing apparatus 50 that is the information setting destination.

  First, the user sets the conditions for the sealed letter to be produced in the printing apparatus 50 so as to have the above contents. Next, when the sealed letter preparation device 200 is driven, desired printing is performed on the envelope paper Ea and the enclosed matter based on the set sealed letter preparation information, and each is conveyed to the enclosed sealing device 1.

  When the envelope paper Ea and the inclusion are conveyed to the enclosure sealing device 1, the envelope paper Ea is conveyed to the first conveyance path 110, and the inclusion is conveyed to the second conveyance path 120, and a predetermined folding process is performed. After that, the sealed material is transported to the sealing unit 140 in a state where the sealed material is wrapped in the envelope E by the sealing unit 130 at the junction of the first transport path 110 and the second transport path 120.

  On the other hand, in order to perform the sealing process, the thickness information acquisition unit 2 among the sealed letter preparation information set by the printing apparatus 50, information indicating the thickness of the sealed letter before sealing (the number information of the enclosed matter is “1”. Sheet ”, the paper information of the inclusion,“ standard ”, the folding information of the inclusion“ trifold ”, and the folding information of the envelope paper Ea“ trifold ”), which is used as the thickness information for pressure bonding Output to the control information acquisition unit 5.

The crimping control information acquisition unit 5 collates the thickness information from the thickness information acquisition unit 2 with the thickness-specific control information stored in the storage unit 4, and performs crimping according to the thickness of the sealed letter before sealing. Get control information.
That is, the number information of the inclusions in the thickness information and the basic control information table stored in the storage unit 4 are collated, and “2” is selected as the basic value in the table. Next, the sheet information of the inclusion, the folding information of the inclusion, and the folding information of the envelope paper Ea in the thickness information are collated with each correction condition table stored in the storage unit 4 to correct the basic value. A value (“0” for the paper information of the inclusion, “1” for the folding information of the inclusion, and “0” for the folding information of the envelope paper Ea) is selected, and an addition process is performed to add the value “3”. Is calculated. Then, the calculated addition value is compared with the crimping control information stored in the storage unit 4, and the crimping control information corresponding to the addition value “3” is output to the control unit 6.

  The control unit 6 drives and controls the flap nip roller pair 3A based on the crimping control information from the crimping control information acquisition unit 5, and performs the crimping process at an appropriate nip pressure and roller rotation speed with respect to the flap bonding portion Eh of the envelope E. . After the pressure bonding of the flap bonding portion Eh, the side portion Ee of the envelope E is pressure bonded by the pair of side nip rollers 3B, and the envelope E is sealed. Then, the sealed envelope E is conveyed to the discharge table 140 via the discharge conveyance unit 150.

  As described above, the sealed sealing device 1 of the present invention outputs the sealed letter production information of the produced letter acquired by the thickness information acquisition unit 2 from the outside to the crimping control information acquisition unit 5 as the thickness information. Based on the thickness information and the basic control information table, the correction condition table, and the crimp control information table, which are control information for each thickness stored in advance, the drive control of the flap nip roller pair 3A is performed with the crimp control information corresponding to the sealed letter to be produced. ing.

  As a result, even in the case of a job in which the thickness of the sealed letter to be produced changes depending on the number of inclusions, etc., it is not necessary to adjust according to the thickness of the sealed letter produced each time, and it is automatically produced. Since the flap adhesion portion Eh of the envelope can be nipped with an appropriate nip pressure based on the preparation conditions of the sealed letter, it is possible to prevent sealing failure due to insufficient nip pressure and conveyance failure of the envelope E.

  In addition, since the nip pressure corresponding to the thickness of the envelope is controlled so as to be applied to several centimeters before and after the flap bonding portion Eh, unnecessary pressure is not applied to the envelope E, and the envelope E is formed by the nip. Damage or the like can be prevented.

  By the way, in the above-described embodiment, the configuration has been described in which the flap nip roller pair 3A is driven and controlled with the nip pressure and the rotation speed of the roller according to the thickness of the envelope E based on the envelope preparation information acquired from the outside as the thickness information. By controlling to perform the sealing process at least with the nip pressure corresponding to the thickness of the envelope E, it is possible to avoid the press bonding failure of the flap bonding portion Eh.

  Further, as a configuration of the envelope preparation apparatus 200 on which the present apparatus is mounted, the printing apparatus 50 is an inkjet system, and the envelope sealing apparatus 11 uses an envelope E in which an envelope paper Ea is subjected to a molding process (folding process, pressure bonding process, etc.). However, the present invention is not limited to this example. The configuration of the printing apparatus 50 may be any image forming apparatus (stencil printing apparatus, copier, laser printer, etc.) that can perform an appropriate printing process on the inclusions and envelope paper Ea. A normal image forming apparatus can be used as the printing apparatus 50 according to the present invention, and the sealed sealing apparatus 11 can be formed by connecting the sealed sealing apparatus 11 thereto.

  Furthermore, as another modified example of the above-described embodiment, for example, instead of the configuration of the printing apparatus, a paper conveyance device that conveys printed inclusions or envelope paper Ea to the encapsulation sealing device 1 is connected to the encapsulation sealing device 1. It can also be set as the structure used. In addition, as a configuration of the sealing device 1, the envelope paper Ea is not folded to produce the envelope E. For example, a ready-made envelope E in which a pressure-sensitive adhesive Ef is applied to the flap portion in advance is used for the envelope E. It can also be set as the structure which performs only the enclosure sealing process of an enclosure thing.

  In addition, when it is set as the form which is not used as one component of the sealed letter preparation apparatus 200 like the said modification but used with the sealed sealing apparatus 11 single-piece | unit, the sealed letter preparation information which is thickness information is external terminal apparatus (PC) ) Or a setting process by the user.

DESCRIPTION OF SYMBOLS 1 ... Enclosing sealing device 2 ... Thickness information acquisition part 3 ... Crimping mechanism (3A ... Flap nip roller pair, 3Aa ... Driven side flap nip roller, 3Ab ... Drive side flap nip roller 3B ... Side nip roller, 3Ba ... Driven side nip roller, 3Bb ... Drive side nip roller)
DESCRIPTION OF SYMBOLS 4,180 ... Memory | storage part 5 ... Crimping control information acquisition part 6, 170 ... Control part 50 ... Printing apparatus (51 ... Introduction path, 52 ... Conveyance path, 53 ... Printing means, 54 ... 1st discharge path, 55 ... 1st 2 discharge paths, 56 ... switchback path)
DESCRIPTION OF SYMBOLS 110 ... 1st conveyance path | route 120 ... 2nd conveyance path | route 130 ... Encapsulation part 140 ... Sealing part 150 ... Discharge stand 160 ... Discharge conveyance part 200 ... Seal preparation apparatus E ... Envelope (Ea ... Envelope paper, Eb ... 1st paper piece Ec ... second paper piece, Ed ... third paper piece, Ee ... side part, Ef ... pressure sensitive adhesive, Eg ... flap, Eh ... flap adhesive part)

Claims (3)

A pair of flap nip rollers that nip a flap adhesion portion that is an adhesion portion between an envelope body and a flap in an envelope formed by folding envelope paper ;
In an encapsulating sealing apparatus for producing a sealed letter by pressure-sealing the adhesive portion in a state in which an enclosure is enclosed in the envelope ,
A thickness information acquisition unit for acquiring information indicating the thickness of the sealed letter before sealing as thickness information;
Crimping in which a plurality of crimping control conditions defined according to the number information of the inclusions are corrected by correction values based on the sheet information of the inclusions, the folding information of the inclusions, and the folding information of the envelope sheets, respectively. A storage unit for storing control information by thickness in which the control information is tabulated;
In order to collate the thickness information acquired by the thickness information acquisition unit with the thickness-specific control information stored in the storage unit, and to control the flap nip roller pair according to the thickness information A crimping control information acquisition unit for acquiring the crimping control information of
Based on the crimping control information from the previous SL crimping control information acquisition unit, and a control unit for variably controlling the nip pressure of said flap nip rollers,
An enclosure sealing device characterized by comprising: The sealed sealing device according to claim 1 , wherein when the flap nip roller pair nips the flap adhering portion, the control portion performs pressure-bonding control with a nip pressure defined by the pressure-bonding control information . The thickness-specific control information includes information for specifying an appropriate rotation speed of the flap nip roller pair according to the thickness of the sealed letter before sealing.
The enclosure according to claim 1 or 2, wherein the control unit variably controls a nip pressure of the flap nip roller pair and a rotation speed of the roller based on the crimp control information from the crimp control information acquisition unit. Sealing device.

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