JP2008110597A - Apparatus for manufacturing adhesion letter, film insertion mechanism, method for manufacturing adhesion letter, and film insertion method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for manufacturing an adhesion letter manufacturing adhesion letter which can realize the size reduction of the apparatus and the rise in folding precision. <P>SOLUTION: The apparatus for manufacturing adhesion letter is characterized to comprise a sheet supply means 2 for continuously supplying sheets of predetermined size and shape one by one, a folding means 4 for folding the sheets supplied from the sheet supply means 2 in a predetermined folding type, an opening and inserting means 6 for opening the closed state of folding pieces of the sheets while conveying the folded sheets and continuously inserting an adhesion film 9 between the folding pieces of the sheets of the opening state a cutting means 7 for cutting the sheets to a predetermined size by setting a closed state between the folding pieces together with the inserted adhesion film, and an adhesion means 8 for adhering the folding pieces to each other through the adhesion film 9 by the adhesive layer of the adhesion film 9 in the cut sheet. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  In the present invention, an adhesive film having an adhesive layer on the front and back surfaces of a base material layer and separated by the base material layer and peelable into two layers is sandwiched between folded pieces of folded paper. The present invention relates to a manufacturing apparatus and a manufacturing method for manufacturing a contact letter by bonding pieces through an adhesive film, and further, a base material layer between folded pieces of folded paper. The present invention relates to an insertion mechanism and an insertion method for continuously inserting an adhesive film that has an adhesive layer on the front and back surfaces and can be separated into two layers by being separated by a base material layer.

  An apparatus for producing a close contact letter using an adhesive film that has an adhesive layer on the front and back surfaces of the base material layer and can be separated into two layers by separating the base material layer is, for example, Patent Document 1, 2. The apparatus of Patent Document 1 folds continuous paper, continuously inserts an adhesive film into the space between the folds, and bonds the folds to each other via the adhesive film to produce a close letter. . The apparatus of Patent Document 2 folds while transporting a sheet, inserts an adhesive film continuously into the space between the folds, and bonds the folds to each other via the adhesive film to produce a close letter is doing.

In the past, generally, as in the apparatus of Patent Document 1, a contact letter is manufactured using continuous paper. However, gradually, the production of contact letters using sheets as in the apparatus of Patent Document 2 has increased.
Japanese Patent Laid-Open No. 5-38894 Japanese Patent Laid-Open No. 9-76665

However, the apparatus of Patent Document 2 has the following problems because it is folded while transporting a sheet.
(I) The work space required for the folding work becomes longer and the entire apparatus becomes larger.
(II) Since special parts are required for carrying and folding at the same time, folding accuracy may be insufficient.
(III) Patent Document 2 refers to an embodiment in which a sheet is folded in three and an adhesive film is inserted. However, the folding process in the embodiment is complicated, and there is a machine that actually implements the embodiment. Not done.
(IV) When the sheet is folded in three and the adhesive film is inserted, the actual situation is that the process is divided into two steps, a folding step and a film insertion step.

  Therefore, an apparatus that can produce a close contact letter using a dedicated folding machine, can perform folding of three or more folds at once, and can also insert an adhesive film at one time is desired. It was.

  An object of the present invention is to provide a contact letter manufacturing apparatus that can realize a device capable of producing a contact letter using a dedicated folding machine, thereby realizing downsizing of the device and higher accuracy of folding. To do.

1st invention of this application has the adhesive film which has an adhesive layer on the front and back of a base material layer between the folded pieces of the folded paper, and can be isolate | separated in a base material layer and can peel in two layers. It is a close contact letter manufacturing device that manufactures a close contact letter by sandwiching and bonding pieces together via an adhesive film,
Paper feeding means for continuously feeding sheets of a predetermined size and shape one by one;
Folding means for folding the paper supplied from the paper feeding means into a predetermined folding mold;
An open insertion means for opening the closed state between the folded pieces of the paper while conveying the folded paper, and continuously inserting an adhesive film between the folded pieces of the opened state;
A cutting means for cutting the paper together with the adhesive film into a predetermined dimension with the inserted adhesive film closed between the folded pieces;
It is characterized by comprising an adhering means for adhering the folded pieces to each other through the adhesive film by the adhesive layer of the adhesive film in the cut paper.

In the said 1st invention, it is preferable to employ | adopt the following structures (1) and / or (2).
(1) The open insertion means has suction means for sucking the paper from both the upper and lower sides.
(2) The cutting means has two cutters that are arranged at a predetermined interval in the paper transport direction and cut the paper in a direction orthogonal to the transport direction.

In the said structure (2), it is preferable to employ | adopt the following structure (A) further.
(A) The cutting means has a cutting control unit for controlling cutting work,
When the cutting control unit sequentially cuts a plurality of sheets conveyed in a state of being connected in the conveying direction by the adhesive film, after the previous sheet is cut by two cutters at a predetermined position, Before the paper is cut at the predetermined position, the adhesive film connecting the previous paper and the next paper is controlled to be cut by the cutter on the upstream side in the transport direction.

In the second invention of the present application, there is provided an adhesive film having an adhesive layer on the front and back surfaces of the base material layer between the folded pieces of the folded paper and separated into two layers by the base material layer. A film insertion mechanism for continuous insertion,
An open insertion means for opening the closed state between the folded pieces of the paper while conveying the folded paper, and continuously inserting the adhesive film between the folded pieces of the open state; ,
The open insertion means has suction means for sucking the paper from both the upper and lower sides.

According to a third invention of the present application, an adhesive film having an adhesive layer on the front and back surfaces of a base material layer and separated by the base material layer and peelable into two layers between folded pieces of folded paper. A method for producing a close contact letter, in which a close contact letter is produced by adhering the fold pieces to each other via an adhesive film,
A paper feeding process for continuously feeding sheets of a predetermined size and shape one by one;
Folding the paper supplied by the paper feeding process into a predetermined folding mold; and
An open insertion step of opening the closed state between the folded pieces of paper while continuously feeding the folded paper, and continuously inserting an adhesive film between the folded pieces of the open state;
A cutting step of cutting the sheet together with the adhesive film into a predetermined size with the inserted adhesive film closed between the folded pieces,
An adhesive step of adhering the folded pieces to each other through the adhesive film by the adhesive layer of the adhesive film in the cut paper.

According to a fourth aspect of the present invention, there is provided an adhesive film having an adhesive layer on the front and back surfaces of a base material layer and separated into two layers by being separated between the folded pieces of the folded paper. A film insertion method for continuous insertion,
An open insertion step of opening the closed state between the folded pieces of the paper while conveying the folded paper, and continuously inserting the adhesive film between the folded pieces of the open state. ,
In the open insertion process, the sheet is sucked from both the upper and lower sides.

According to the 1st invention or the 3rd invention of this application, when manufacturing a contact letter using a sheet, the following effects can be exhibited.
(A) While the paper is being conveyed by the open insertion means, the closed state between the folded pieces of the paper is opened, and the adhesive film is continuously inserted between the folded pieces in the opened state. The following effects can be demonstrated.
(I) In the production of a close contact letter, the folding operation and the film insertion operation can be performed completely separately and independently. Therefore, a dedicated folding machine can be used as the folding means.
(Ii) The work space in the transport direction for performing the film insertion work can be shortened as compared with the conventional case, and thus the entire apparatus can be reduced in size.
(Iii) The adhesive film can be inserted at once.

(B) Since a dedicated folding machine is used as the folding means, it is possible to realize high-precision folding, and to realize various folding types, for example, folding types with three or more folds. The required work space can be shortened and the entire apparatus can be miniaturized.

  In the first invention of the present application, if the configuration (1) is adopted, the open insertion means can be realized with a simple configuration.

  In the first invention of the present application, if the above configuration (2) is adopted, two cutters arranged at a predetermined interval in the paper transport direction are operated to cut the paper, so that one cutting operation Thus, it is possible to obtain a sheet cut to a predetermined size, thus improving the workability and improving the dimensional accuracy as compared with the conventional example in which the sheet is cut twice with one cutter. it can.

  In the first invention of the present application, if the above configuration (A) is adopted together with the above configuration (2), it is possible to prevent the adhesive film from being cut along with the paper in a state of being entangled with the leading edge of the next paper, and a problem associated therewith Can be prevented. For example, it is possible to prevent the cut adhesive film from adhering to a later sheet.

According to the second invention or the fourth invention of the present application, the following effects can be exhibited.
(I) In the production of a close contact letter, the folding operation and the film insertion operation can be performed completely separately and independently. Therefore, a dedicated folding machine can be used as the folding means.
(Ii) The work space in the transport direction for performing the film insertion work can be shortened as compared with the conventional case, and thus the entire apparatus can be reduced in size.
(Iii) The adhesive film can be inserted at once.

  FIG. 1 is a schematic plan view of a contact letter manufacturing apparatus 1 according to the present invention. The apparatus 1 includes a paper feeding unit 2, a first transport unit 3, a folding unit 4, a second transport unit 5, an open insertion unit 6, a cutting unit 7, a bonding unit 8, and a paper discharge unit 10. And in this order. FIG. 2 is a plan view of a portion including the paper feeding unit 2, the first transport unit 3, the folding unit 4, and the second transport unit 5 of FIG. 1, and FIG. 3 is a view taken along the arrow III in FIG. .

  The paper feed unit 2 includes a placement unit 21 on which sheets 11 having a predetermined size and shape are stacked, and a feeder unit 22 that sucks and conveys the uppermost sheet 11 of the placement unit 21 one by one from above. ing. The paper feeding unit 2 transports the paper 11 of the loading unit 21 to the first transport unit 3 one by one by the feeder unit 22.

  The first transport unit 3 has two transport belts 31 and 32. The first transport unit 3 places the paper 11 transported by the feeder unit 22 on the two transport belts 31 and 32 and transports the paper 11 to the folding unit 4. The two conveyor belts 31 and 32 are parallel to each other, but are inclined with respect to the conveyance direction (arrow X1 direction) as a whole. Therefore, the first transport unit 3 transports the paper 11 while aligning the paper 11 along the guide 33 positioned on the inclined side of the transport belts 31 and 32.

  The folding means 4 is composed of a dedicated folding machine. The dedicated folding machine can realize various types of folding molds with high accuracy, and employs a mechanism described in, for example, JP-A-2003-20163. The folding unit 4 includes a folding mechanism unit 41 that performs a folding operation of the paper 11 and a pressing and conveying unit 42 that conveys the folded paper 11 while pressing the folded paper 11 from above.

  In the present embodiment, the folding mechanism 41 operates as shown in FIGS. 4A to 4D to fold the paper 11 into a Z shape. That is, as shown in FIG. 4A, the paper 11 is fed into the nip between the feed rollers 411 and 412 and is conveyed along the conveyance guide 413. Even if the leading edge of the paper 11 collides with the stopper 414, the paper 11 is fed by the feed rollers 411 and 412. Therefore, as shown in FIG. The The crooked portion of the paper 11 is fed into the nip between the feed rollers 412 and 415 and is conveyed along the conveyance guide 417 as shown in FIG. Even if the leading end of the bent portion of the paper 11 collides with the stopper 418, the paper 11 is fed by the feed rollers 412, 415. Therefore, as shown in FIG. The middle part is further cramped. Then, the bent portion is fed into the nip between the feed rollers 415 and 416 and sent out. In this way, the sheet 11 is folded into a Z shape by being bent twice. Therefore, the folding mechanism unit 41 folds the paper 11 sent from the first transport means 3 one by one into a Z shape as shown in FIG.

  The second conveying means 5 is configured by arranging a large number of conveying rollers 51 in the conveying direction (arrow X2 direction). The arrow X1 direction and the arrow X2 direction are orthogonal to each other. All the transport rollers 51 have their rotational axes slightly inclined from the direction orthogonal to the transport direction. Therefore, the second transport unit 5 transports the paper 11 while aligning the paper 11 along the guide 52.

  6 is a plan view of a portion including the second conveying means 5, the open inserting means 6 and the cutting means 7 in FIG. 1, FIG. 7 is a schematic sectional view taken along the line VII-VII in FIG. FIG. 8 is a view taken along arrow VIII-VIII in FIG. 6.

  The open insertion means 6 includes a lower transport unit 61, an upper transport unit 62, a lower suction unit 63, an upper suction unit 64, a lower film insertion unit 65, and an upper film insertion unit 66. ing. The film insertion mechanism of the present invention is constituted by the open insertion means 6, and the suction means is constituted by the lower suction part 63 and the upper suction part 64.

  The lower conveyance unit 61 is configured by four endless belts 612 laid around four conveyance rollers 611. The lower conveyance unit 61 conveys the paper 11 placed on the belt 612 in the arrow X2 direction by rotating the conveyance roller 611 and moving the belt 612 in the arrow direction. A number of through holes (not shown) are formed in the belt 612. On the other hand, the suction port of the lower suction part 63 is arranged upward in a space surrounded by the belt 612. The lower suction part 63 is composed of a suction fan, for example, and sucks air from the suction port in the direction of the arrow Y1. Therefore, when the lower suction unit 63 is operated, the lower transport unit 61 transports the paper 11 in a state where the paper 11 is attracted to the surface of the belt 612 by the air sucked through the through holes as shown in FIG. To do.

  The upper transport unit 63 is configured by an endless belt 632 being stretched around two transport rollers 631. A number of through holes 6321 (FIG. 6) are formed in the belt 632. On the other hand, the suction port of the upper suction part 64 is disposed downward in a space surrounded by the belt 632. The upper suction part 64 is composed of a suction fan, for example, and sucks air in the direction of the arrow Y2. Therefore, when the upper suction unit 64 is operated, the upper transport unit 63 transports the paper 11 in a state where the paper 11 is attracted to the lower surface of the belt 632 by the air sucked through the through-hole 6321 as shown in FIG. To do. The upper conveyance unit 63 conveys the paper 11 adsorbed to the belt 632 in the direction of the arrow X2 by rotating the conveyance roller 631 and moving the belt 632 in the direction of the arrow.

  The lower film insertion unit 65 wraps the adhesive film 9 from the film supply unit 651 around the outer guide 652 and then around the inner guide 653, so that the first folded piece 111 and the second folded piece 112 of the paper 11 are wound. The adhesive film 9 is inserted into the space 101 between the two. The inserted adhesive film 9 is conveyed along with the paper 11. The outer guide 652 and the inner guide 653 are disposed at a predetermined angle such as about 60 degrees with respect to the transport direction of the paper 11. The outer guide 652 is arranged so that the leading end is positioned outside the side edge of the sheet 11 to be conveyed, and the inner guide 653 is inserted into the space 101 so that the opposite side edge is inserted. It is arranged to be located beyond.

  The upper film insertion unit 66 winds the adhesive film 9 from the film supply unit 661 around the outer guide 662 and then around the inner guide 663, whereby the second folded piece 112 and the third folded piece 113 of the paper 11 The adhesive film 9 is inserted into the space 102 between the two. The inserted adhesive film 9 is conveyed along with the paper 11. The outer guide 662 and the inner guide 663 are disposed at a predetermined angle such as about 60 degrees with respect to the transport direction of the paper 11. The outer guide 662 is arranged so that the leading end is positioned outside the side edge of the paper 11 to be conveyed, and the inner guide 663 is inserted into the space 102 so that the opposite side edge is inserted. It is arranged to be located beyond.

  By the way, the adhesive film 9 has a structure as shown in FIG. That is, as shown in FIG. 9A, the adhesive film 9 has adhesive layers 92 and 93 on the front and back surfaces of the base material layer 91 composed of two layers. Then, as shown in FIG. 9B, the adhesive film 9 is separated by a base material layer 91, a layer 9 </ b> A composed of a base material layer 911 and an adhesive layer 92, a base material layer 912 and an adhesive agent. It can be peeled into two layers, the layer 9 </ b> B composed of the layer 93.

  The cutting means 7 includes four pressure roller pairs 71 arranged side by side in the conveyance direction of the paper 11, two cutters 72 arranged at predetermined intervals in the conveyance direction of the paper 11, and the pressure roller pair 71. And a cutting control unit (not shown) for controlling the operation of the cutter 72. The cutter 72 cuts the paper 11 in a direction orthogonal to the transport direction by bringing the upper blade 721 into sliding contact with the lower blade 722. The cutting means 7 is formed by the two cutters 72 with the adhesive film 9 in a state in which the space between the folded pieces of the paper 11 with the adhesive film 9 inserted into the spaces 101 and 102 is closed by the pressure roller pair 71. At the same time, the paper 11 is cut into a predetermined size.

  The bonding unit 8 includes a plurality of conveyance roller pairs and a plurality of heaters. Each transport roller pair is composed of a pair of rollers arranged above and below the transport path of the paper 11. The interval between adjacent conveyance roller pairs is set to be smaller than the conveyance direction dimension of the paper 11 cut by the cutting means 7. Each heater is disposed between adjacent pairs of conveyance rollers and above and below the conveyance path. In the bonding means 8, the adhesive film 9 inserted in the spaces 101 and 102 is heated, and the adhesive layers 92 and 93 are heat-sealed to the folds opposed to the adhesive layers 92 and 93, thereby A close contact letter is obtained in which the two are bonded via an adhesive film 9.

  The paper discharge means 10 has a belt conveyor, and collects the contact letters sent out from the bonding means 8 in a standing state on the stacker.

  Next, the operation of the contact letter manufacturing apparatus 1 having the above-described configuration will be described.

  When the operation of the apparatus 1 is started, first, the uppermost sheet 11 of the sheets 11 stacked on the loading unit 21 of the sheet feeding unit 2 is conveyed to the first conveying unit 3 one by one by the feeder unit 22. The

  In the first transport unit 3, the paper 11 is transported to the folding unit 4 while being aligned along the guide 33.

  In the folding unit 4, the paper 11 is folded into a Z shape by the folding mechanism unit 41 and then conveyed to the second conveying unit 5 while being pressed from above by the pressing and conveying unit 42. Therefore, the sheet 11 conveyed to the second conveying means 5 is, as shown in FIG. 10, between the first folded piece 111 and the second folded piece 112 and between the second folded piece 112 and the third folded piece 113. Is closed.

  Since the folding means 4 uses a dedicated folding machine, the paper 11 is folded into a Z shape with high accuracy.

  In the second transport unit 5, the paper 11 is transported to the open insertion unit 6 while being aligned along the guide 52.

  In the open insertion means 6, the lower transport unit 61 and the upper transport unit 62 operate simultaneously, and the lower suction unit 63 and the upper suction unit 64 operate simultaneously. When the lower suction part 63 and the upper suction part 64 are operated, the sheet 11 folded in the Z shape is pulled up and down as shown in FIG. A space 101 is formed between the piece 112 and a space 102 is formed between the second fold piece 112 and the third fold piece 113. Thereby, the closed state between the folded pieces of the paper 11 is released, and the paper 11 is transported in the direction of the arrow X2 by the lower transport unit 61 and the upper transport unit 62. Simultaneously with these operations, the lower film insertion portion 65 and the upper film insertion portion 66 are activated, and the adhesive film 9 is inserted into the spaces 101 and 102. As a result, the sheet 11 with the adhesive film 9 inserted into the spaces 101 and 102 as shown in FIG.

  In the cutting means 7, the paper 11 is pressed by the pressure roller pair 71, that is, between the first fold piece 111 and the second fold piece 112, and between the second fold piece 112 and the third fold piece 113. In the state where is closed, the motor stops at a predetermined position. In this state, when the two cutters 72 are operated, the paper 11 is cut into a predetermined dimension together with the adhesive film 9. The cut sheet 11 is conveyed to the bonding means 8 by the operation of the pressure roller pair 71.

  In the bonding means 8, the paper 11 is heated in a pressed state. As a result, the adhesive layers 92 and 93 of the adhesive film 9 inserted in the spaces 101 and 102 are melted to bond the first fold piece 111 and the second fold piece 112 together with the second fold piece 112. The third folded piece 113 is bonded. As a result, as shown in FIG. 12, a contact letter 100 is obtained in which the folded pieces of the paper 11 folded into the Z shape are bonded together via the adhesive film 9. The close contact letter 100 is sent out from the bonding means 8 and collected by the paper discharge means 10.

  In addition, the contact letter 100 of FIG. 12 is isolate | separated by the base material layer 91, as shown in FIG. That is, the base material layer 912 is attached to the inner surface of the first fold piece 111 via the adhesive layer 93, and the base material layer 911 is provided to the lower surface of the second fold piece 112 via the adhesive layer 92. Is attached to the upper surface of the second fold piece 112 via an adhesive layer 93, and the adhesive layer 92 is provided to the inner surface of the third fold piece 113. A base material layer 911 is attached.

  By the way, specifically, one sheet of paper 11 has a dimensional shape capable of forming two postcard-sized contact letters. Then, the paper 11 that has passed through the open insertion means 6 is conveyed to the cutting means 7 while being connected to the rear paper 11 by the adhesive film 9. In the cutting means 7, specifically, the paper 11 is cut as shown in FIG. 14 under the control of the cutting control unit.

  That is, first, as shown in (A), the previous paper 11 </ b> A is conveyed to the positions C <b> 1 and C <b> 2 of the two cutters 72 by the operation of the pressure roller pair 71. Then, the previous paper 11A is cut at that position. As a result, the first postcard-sized paper 100A is separated from the previous paper 11A. Next, as shown in (B), the remaining of the previous paper 11 </ b> A is conveyed to the positions C <b> 1 and C <b> 2 of the two cutters 72 by the operation of the pressing roller pair 71. Then, the remainder of the previous paper 11A is cut at that position. As a result, the second postcard-sized paper 100B is separated from the previous paper 11A. Next, as shown in (C), the pressure roller pair is set so that the adhesive film 9 attached to the leading edge of the paper 11B comes to the position C2 of the cutter 72 on the upstream side in the transport direction of the two cutters 72. By the operation of 71, the next sheet 11B is conveyed a little. Then, the adhesive film 9 attached to the leading edge of the paper 11B is cut by the cutter 72 on the upstream side in the transport direction. As a result, the length of the adhesive film 9 attached to the leading edge of the paper 11B in the transport direction is extremely short. Then, as shown in (D), by the operation of the pressure roller pair 71, the next paper 11B is conveyed to the positions C1 and C2 of the two cutters 72 and cut in the same manner as the previous paper 11A. Thus, the paper 11 is cut sequentially.

  Incidentally, in the cutting means 7, when the operation (C) is not performed, the leading edge of the paper 11B generated by the operation (B) is in the state shown in FIG. The remaining side 11a of the previous paper 11A is detached from the adhesive film 9, and the state shown in FIG. When the operation (D) is performed on the paper 11B in this state, as shown in FIG. 16, the adhesive film 9 is cut together with the paper 11B in a state of being entangled with the leading end of the paper 11B. And the malfunction that the cut | disconnected adhesive film 9 adheres to a subsequent paper generate | occur | produces.

  However, in the contact letter manufacturing apparatus 1 having the above-described configuration, the cutting unit 7 performs the cutting operation controlled as described above by the cutting control unit, and in particular, the leading edge of the next sheet 11B by the operation (C). The length in the conveying direction of the adhesive film 9 attached to is extremely short. Therefore, the adhesive film 9 can be prevented from being entangled with the front end portion of the paper 11B. Therefore, it is possible to prevent the occurrence of problems due to the adhesive film 9 being cut together with the paper 11B in a state where the adhesive film 9 is entangled with the front end portion of the paper 11B.

According to the contact letter manufacturing apparatus 1 having the above-described configuration, the following effects can be exhibited when a contact letter is manufactured using a sheet of paper. The same effect can also be exhibited by the method for producing a contact letter according to the present invention.
(A) While the paper 11 is being conveyed by the open insertion means 6, the closed state between the folded pieces of the paper 11 is opened, and the adhesive film 9 is continuously inserted between the opened folded pieces. Therefore, the following effects can be demonstrated. In addition, the same effect can be exhibited also by the film insertion mechanism of the present invention.
(I) In the production of a close contact letter, the folding operation and the film insertion operation can be performed completely separately and independently. Therefore, a dedicated folding machine can be used as the folding means 4.
(Ii) The work space in the transport direction for performing the film insertion work can be shortened as compared with the conventional case, and thus the entire apparatus can be reduced in size.
(Iii) The adhesive film can be inserted at once.

(B) Since a dedicated folding machine is used as the folding means 4, it is possible to achieve high accuracy folding, to realize various folding molds, and to further shorten the working space required for the folding work. The overall size can be reduced.

(C) In the cutting means 7, the two cutters 72 arranged at predetermined intervals in the conveying direction of the paper 11 are operated to cut the paper 11, so that the predetermined size is obtained by one cutting operation. Thus, it is possible to obtain a sheet 11 that has been cut into two pieces, thus improving the workability and improving the dimensional accuracy as compared with the conventional example in which the sheet 11 is cut twice with one cutter.

  In the above embodiment, the case where the folding mold is the Z type has been described. However, the present invention can be applied even when the folding mold is the lateral V type shown in FIG. 17 or the lateral W type shown in FIG.

  The close contact letter manufacturing apparatus of the present invention can realize high accuracy of folding, and can realize downsizing of the entire apparatus, and thus has great industrial utility value.

It is a plane schematic diagram of the contact letter manufacturing apparatus of the present invention. FIG. 2 is a plan view of a portion including a paper feeding unit, a first transport unit, a folding unit, and a second transport unit in FIG. 1. FIG. 3 is a view taken in the direction of arrow III in FIG. 2. It is a side cross-sectional schematic diagram for demonstrating the action | operation of a folding mechanism part. It is a perspective view of the paper folded in Z shape. It is a top view of the part which consists of the 2nd conveyance means of FIG. 1, an open insertion means, and a cutting means. It is a VII-VII cross-sectional schematic diagram of FIG. It is a VIII-VIII arrow line view of FIG. It is sectional drawing which shows the structure of an adhesive film. It is sectional drawing which shows the state of the paper in a 2nd conveying means. It is sectional drawing which shows the paper of the state in which the adhesive film was inserted in the space between folding pieces by the open insertion means. It is sectional drawing of the contact letter obtained through the adhesion | attachment means. FIG. 13 is a partial cross-sectional view showing a state where the close contact letter of FIG. 12 is opened. It is a top view which shows the process of the cutting operation in a cutting means. It is side surface sectional drawing which shows the state of the front-end | tip of the paper after the operation | work of FIG. It is side surface sectional drawing which shows the cause of generation | occurrence | production of the malfunction in a cutting operation. It is a perspective view which shows another example of the folding mold | type which can apply this invention. It is a perspective view which shows another example of the folding mold | type which can apply this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Contact letter manufacturing apparatus 11 Paper 100 Contact letter 2 Paper feed means 4 Folding means 6 Open insertion means 63 Lower suction part 64 Upper suction part 7 Cutting means 72 Cutter 8 Adhesion means 9 Adhesive film 91 Base material layers 92 and 93 Adhesive layer

Claims (7)

Between the folded pieces of the folded paper, sandwiching an adhesive film that has an adhesive layer on the front and back surfaces of the base material layer and can be separated into two layers by the base material layer, An adhesion letter manufacturing apparatus that produces an adhesion letter by adhering via an adhesive film,
Paper feeding means for continuously feeding sheets of a predetermined size and shape one by one;
Folding means for folding the paper supplied from the paper feeding means into a predetermined folding mold;
An open insertion means for opening the closed state between the folded pieces of the paper while conveying the folded paper, and continuously inserting an adhesive film between the folded pieces of the opened state;
A cutting means for cutting the paper together with the adhesive film into a predetermined dimension with the inserted adhesive film closed between the folded pieces;
An adhesive letter manufacturing apparatus, comprising: an adhesive unit that adheres the folded pieces to each other through the adhesive film by the adhesive layer of the adhesive film in the cut paper.   The contact letter manufacturing apparatus according to claim 1, wherein the open insertion means includes suction means for sucking the paper from both the upper and lower sides.   The contact letter manufacturing apparatus according to claim 1, wherein the cutting unit includes two cutters that are arranged at predetermined intervals in the paper transport direction and that cut the paper in a direction orthogonal to the transport direction. The cutting means has a cutting control unit for controlling cutting work,
When the cutting control unit sequentially cuts a plurality of sheets conveyed in a state of being connected in the conveying direction by the adhesive film, after the previous sheet is cut by two cutters at a predetermined position, The control unit according to claim 3, wherein the adhesive film connecting the previous paper and the next paper is controlled to be cut by a cutter on the upstream side in the transport direction before the paper is cut at the predetermined position. Close letter production equipment. Between the folded pieces of the folded paper, an adhesive film that has an adhesive layer on the front and back surfaces of the base material layer and is separated by the base material layer and can be separated into two layers is continuously inserted. A film insertion mechanism,
An open insertion means for opening the closed state between the folded pieces of the paper while conveying the folded paper, and continuously inserting the adhesive film between the folded pieces of the open state; ,
A film insertion mechanism, wherein the open insertion means includes suction means for sucking the paper from both the upper and lower sides. Between the folded pieces of the folded paper, sandwiching an adhesive film that has an adhesive layer on the front and back surfaces of the base material layer and can be separated into two layers by the base material layer, It is a manufacturing method of a close contact letter that is bonded through an adhesive film to manufacture a close contact letter,
A paper feeding process for continuously feeding sheets of a predetermined size and shape one by one;
Folding the paper supplied by the paper feeding process into a predetermined folding mold; and
An open insertion step of opening the closed state between the folded pieces of paper while continuously feeding the folded paper, and continuously inserting an adhesive film between the folded pieces of the open state;
A cutting step of cutting the sheet together with the adhesive film into a predetermined size with the inserted adhesive film closed between the folded pieces,
A method for producing a contact letter, comprising: an adhesion step in which the folded pieces are adhered to each other through an adhesive film by an adhesive layer of the adhesive film in the cut paper. Between the folded pieces of the folded paper, an adhesive film that has an adhesive layer on the front and back surfaces of the base material layer and is separated by the base material layer and can be separated into two layers is continuously inserted. A film insertion method,
An open insertion step of opening the closed state between the folded pieces of the paper while conveying the folded paper, and continuously inserting the adhesive film between the folded pieces of the open state. ,
A film insertion method characterized in that, in the open insertion step, the sheet is sucked from both upper and lower sides.

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