JPH0491996A - Device for manufacturing concealed postcard - Google Patents

Abstract

PURPOSE:To manufacture a concealed postcard automatically with high productive efficiency by supplying, transporting and holding a postcard sheet of double or triple size with print for concealment, then sandwiching two transparent plastic films with the sheet and allowing a thermally fusing material to stick to the surface of the postcard. CONSTITUTION:A postcard sheet A of double size is sucked by a suction part 17, then is sent to belt conveyors 2a, 2b using a swingable arm 16 and is allowed to proceed through a guide 21. Then, the tip of the sheet A comes in contact with a stopper 210 and then begins to be folded by a folding roller 20c and a belt wheel 20b. At the same time, a plastic film B is cut to a specified length using a rotary blade 41 and a fixed blade 40 and is introduced into an area between the right and left half leaves A1, A2 of the postcard sheet A. Next the double-folded postcard sheet A sandwiching the concealing plastic film B is allowed to drop in a pocket 5c and their edges are trimmed. After that, the sheet A is sent into a transport conveyer 5e and then is sent into a heat press device 6 using a transport roller 6c. Finally a thermally fusing material which is in contact with printing parts for concealment (a), (a) is allowed to fuse thermally under pressure, and a finished product is sent to an inspection line from a drawing roller 6d using a transport conveyor.

Description

[Detailed description of the invention]

[Industrial Field of Application] The present invention relates to an apparatus for manufacturing concealed postcards using a per-leaf method. [Prior art and its technical issues] When mailing printed documents such as advertising letters, advertisement/order forms, invitations, invoices, balance sheets, etc., in the past, the printed documents were generally loaded into envelopes. Alternatively, the necessary contents were printed on the inside of the envelope paper, and the three edges of the envelope paper were glued to form an envelope. Recently, covert postcards have been used as an alternative to these. This concealment postcard usually has the necessary concealment printing applied to the inner surface of a return postcard size (double size) postcard, and then covers the concealment printing surface with a transparent plastic film, which prevents the static electricity of the transparent plastic film from forming between molecules. The two bars of a postcard are brought into close contact with each other by suction power, and the information can be sent by mail at the cost of a postcard rather than a sealed letter, while keeping the information hidden.As a result, it has a large cost-saving effect and is becoming more widely used. However, in the past, when manufacturing these hidden postcards, the method was to attach a transparent plastic film coated with glue onto the paper in the required areas, and then fold the paper in half, making the process complicated and the production cost high. In addition, there was a problem in that excess glue smeared around the edges, making the paper look unsightly, and easily causing trouble in the operation of the automatic postcard reading mechanism. Another method is to continuously fold a long length of postcard paper with perforations etc. and sandwich a long transparent film between them. There is a problem in that loss is likely to occur at the starting and ending ends, and it is also difficult to fold the transparent film in a manner that leaves unbonded twills for peeling. [Means for Solving the Problems] The present invention was devised by LJ in order to solve the above-mentioned problems, and its basic purpose is to provide concealed postcards that are easy to peel off and have good appearance using the per-leaf method. The objective is to provide a compact device that can be manufactured automatically and efficiently and without loss. In order to achieve this object, the present invention includes means for sequentially supplying double-sized postcard paper having the required concealment printing on the surface thereof, and a means for conveying the postcard paper downstream of the postcard paper supply means. A folding means for folding in half and discharging the film, and a film narrow means for cutting two closely-adhered transparent plastic films having a heat-fusible substance on the back to a required length and inserting the cut sheets between the left and right sides of postcard paper during the folding process. , a means for aligning the edges of the folded postcard paper with a transparent plastic film sandwiched therebetween, and a heat press means for bonding a heat-fusible substance to the postcard by pressurizing and heating the edge-aligned concealment postcard assembly. It is equipped with the following. A second object of the present invention is to provide an apparatus that can automatically and efficiently produce a concealment postcard having two sets of concealment printing. In order to achieve this object, the present invention provides a means for sequentially supplying postcard paper of triple size with first and second concealment printing on the front and back sides, and a means downstream of the postcard paper supply means. a first folding means for folding the postcard paper into two and ejecting the postcard paper as an intermediate stage for the first concealment printing; and two sheets of closely-adhered transparent plastic films having a heat-fusible material on the back side. a first film narrow means for feeding and cutting the paper into a required length and inserting it between the left and right sides of the postcard paper during the bifolding process; and a first edge aligning means for receiving and aligning the edges of the bifold postcard paper sandwiching the transparent plastic film. a first heat press means for pressurizing and heating the edge-aligned concealment postcard assembly to fuse at least one side of the heat-fusible material to the postcard; a means for conveying the earthen postcard; a second folding means including a part of the conveying means and for folding the earthenware postcard in half with the middle of the second concealment printing as a border and then discharging the same; and a heat-fusible substance on the back side. a second film narrowly defined means for feeding out two closely-adhered transparent plastic films, cutting them to a required length, and inserting them between the left and right cotyledons of the semi-finished postcard in the bifolding process; and a bifold clay postcard sandwiching the transparent plastic film. The present invention is configured to include a second edge aligning means for receiving and aligning the edges, and a second heat press means for pressurizing and heating the edge aligned concealment postcard assembly to bond it with a heat-fusible material. The folding means includes, for example, a pair of belt wheels that feed out the postcard paper, a roller that rotates in contact with one of the pair of belt wheels, and a V-shaped opening formed by the belt wheel and the roller. It is suitable that the film is equipped with a guide that bends the desired part of the postcard paper by abutting the leading edge of the postcard paper fed by a pair of belt wheels. Appropriately, one is equipped with a pinch roller that pulls out the transparent plastic film layered with a substance from the original web, and a cutter located downstream of the pinch roller that cuts the transparent plastic film into smaller pieces than the postcard paper 1 method. The means for aligning the edges of the transparent plastic film and the folded postcard paper is either an intermittent rotating body with a plurality of pockets for bottoming on the outer periphery, or a stationary chute for bottoming and a feeding claw positioned within the chute. [Embodiment] The embodiment of the present invention will be described below with reference to the accompanying drawings. Figures 1 to 3 show a first embodiment of the present invention. An example is shown. A is a double-sized postcard paper, and desired information is printed on the inside surface using a computer, printing machine, etc. In Figure 2, a and a are concealment printing parts, and for example, in the case of a bill, the current month's bill is printed on the single sheet A□ of the postcard paper, and the billing statement is printed on the single sheet A2 of the postcard paper for the transfer destination. . B is a plastic film for concealment, and as shown in a partially enlarged view in Figure 1, it consists of two highly transparent plastic films (for example, OPP film) that are closely adhered to each other due to static electricity and intermolecular attraction force. , b is made of a composite film in which a heat-fusible material b', such as ethylene-vinyl acetate copolymer resin (EVA), is layered by coating on the back surfaces of the paper sheets B and b. It is made to have a width equal to or slightly smaller than the length of the wire, and is wound into a coil as shown in Figure 1. The apparatus of the present invention comprises a means 1 for feeding the accumulated double-sized postcard paper A one by one, a means 2 for transporting the double-sized postcard paper A taken out from the supplying means 1, and a transporting means. A folding means 3 disposed downstream of the folding means 3, which is located near the means, folds the plastic film B for concealment at the same time as the double-sized postcard paper A starts to be folded in half. Cut to size and make left and right fresh leaves A□g A 2
When the film narrow means 4 to be inserted in between and the inserted concealing plastic film B are received and removed, the plastic film B cut at 3 degrees fits at the bottom of the folded postcard and leaves a margin for opening at the edge. a heat press means 6 for heating the edge-aligned covert postcard assembly C and bonding the heat-fusible substances b' and b' to the half-cake AlA2. There is. First, a supply means 1 for supplying postcard paper A of double size is provided on the back of the frame 100. The supply means 1 may be of any type with a mechanism capable of taking out the accumulated 2:1 method postcard paper sheets one by one. This embodiment uses a vacuum method. In other words, a biasing mechanism that presses the pile of postcard paper A of 2x 1000 sheets against the top plate 10]
3, the paper feed motor, for example 11r, is on the top plate side.
)1 Geared motor with clutch brake and brake 12
The crank 13 driven by the sea and this crank 13
A cam 14 having a meshing gear of 140 g and a drive arm 15 connected to a gear 150 connected to the cam 14, respectively. The tip of the yunsonk 13 and 5 are connected to the swinging arm 1 (with the swinging arm 3) - the tip of the swinging arm 1., - installation j
7, which applies negative pressure introduced from a negative pressure source (not shown) to the uppermost layer of postcard paper A. Next, the first postcard paper conveying means 2 is connected to the flow of the above-mentioned supply means 1, and the double-sized postcard paper A, which has been suctioned and transferred by the suction section J7 of the above-mentioned supply means 1-, is transferred to the -I conveyor belt. Transfer by pinching]-lower IJM & eggplant belt conveyor 2a,
It consists of 2b. One of the bell 11 conveyors 2a and 2h on the downstream side, 20b of the 1 and 1 bell I cars 20a and 20b, is a driving bell 1 car, as shown in FIG.
Conveyance motor (for example, +1f variable speed geared motor) 22
The shaft of each belt wheel of the postcard sheet conveying means 2, which is driven by tc, is journalled in the frame ], 00. The folding means 3 is provided in common with a part of the postcard paper conveying means 3, and includes a drive belt wheel 2.
Ob&:1 is provided with a pair of folding rollers 20c, and as shown in FIG. An interlocking gear 201 that meshes with is provided. A chute-shaped guide 21 rising diagonally at a predetermined angle from near the folding row 20c is fixed, and approximately the center of the double-sized postcard paper A is fixed to this guide 21 for folding. A stopper 210 is provided with which the tip abuts when the roller 20c is reached. Next, the film narrow-sense means 4 includes a pinch roller 4a that pulls out a predetermined length of the concealing plastic film AB from the original film in one rotation, and a pinch roller 4a that pulls out the concealing plastic film AB from the original film by a predetermined length, and the pulled-out concealing plastic film B.
The pinch roller 4a and the cutter 4b are connected to the drive belt pulley 2. A frame-shaped film guide 4c is arranged on the vertical line of the folding opening formed by the folding roller 20e and the cutter 4b.
is permanently installed. The cutter 4b includes a fixed blade 40 whose cutting edge faces toward the film transport route, and a rotary blade 41 that cooperates with the fixed blade 40 to cut the film.
-, the rotating shaft of this rotary blade 40 and the pinch roller 4a
As shown in FIG. 3, a timing pulley 42.
．． 43 is attached, and the timing pulley 4.2.43 is connected to the interlocking motor (eg, a geared motor with a clutch brake for one-rotation drive) 44 by the drive-side timing pulley 440, and is synchronously driven thereby. The plastic film B is pulled out from the original film by a predetermined feeder and cut into a size smaller than half the area of the postcard paper A by 2 times. , the folding means 3 is disposed on the discharge side (o), i.e., below.In this embodiment, the aligning means 5 is located on the outer periphery of the rotary body 5a and has a plurality of trailing blades 5b.
By providing a plurality of bottom pockets 5c, the rotating body ξ5a aligns the bottom pockets 5c with the vertical line of the discharge port, which is composed of the drive belt pulley 20b and the folding row 20c. It is driven intermittently so that the bottom stays in place. Therefore, the rotation axis of the rotating body 5a is the index mechanism 5d.
The input shaft 50 of the indexing mechanism 5d is incorporated into the indexing mechanism 5d.
is connected to the one-rotation drive motor 44 via a timing pulley 500. A transfer belt conveyor 5e is arranged below the edge aligning means 5 for conveying the edge aligned concealment postcard assembly C to the next joining means 6. One pulley 51 of the transfer belt conveyor 5e is driven by being connected to the variable speed motor 22 of the postcard sheet conveying means 2 by a timing belt 510. The heat press means 6 is for heating the concealing postcard assembly C while applying pressure, melting the heat-fusible substance b'b'' and melting it into the fibers of the postcard to integrate it. In this embodiment, , a fixed heater 6a fixed to the base of the frame 100, a presser heater 6b paired with the fixed heater 6a, and pairs of upper and lower feed rollers 6c and pull-out rollers 6d disposed before and behind both heaters 6a, 6h. The fixed heater 6a and the presser heater 6b each have a heating element embedded therein, and the presser heater 6b is constantly pressed against the fixed heater 6a by a bias 65 from the back, and when the covert postcard assembly C enters, the bias is applied. 65 and heated at the same time.The bias 65 is supported by a frame, etc., and the frame and presser heater 6b are connected with hanging bolts that are movable in the axial direction. One of the rollers 6d (lower roller in the embodiment) 60, 61 is connected by a timing belt 610 as shown in FIG. 3, and each upper roller is meshed with a gear provided on the roller shaft by an interlocking gear, and The roller 60 of the feed roller 6C is connected to the downstream pulley 52 of the transfer belt conveyor 5e and interlocking gears 62, 63.
It is designed to be driven synchronously. In this embodiment, the heat press means 6 is a single heat press means, but it may be arranged in series in multiple stages in combination with a pull-out roller 6b. This is convenient for providing preheating to improve the welding of the film and for speeding up the welding. In FIG. 3, reference numeral 8 indicates the paper feed motor J2. A power supply unit/controller that synchronizes the operation of the variable speed motor 22 and the interlocking motor 44, and 8a is a first sensor installed in the transport path of the postcard paper transport means 2, which detects the transport of the postcard paper A and interlocks it. This is to send a drive signal to the motor 44 to operate the pinch roller 4a, cutter 4b, and indexing machine 4115cl for edge alignment. Reference numeral 8b denotes a second sensor provided at a suitable location of the folding means 3, for example, at the guide 21, and detects that the postcard paper has entered the guide 21, and sends the signal to the paper feed motor 12 to operate it. It's a creature. The first sensor 8a and the second sensor 8b may be any arbitrary sensor such as a phototube. 4 to 6 show another embodiment of the ear aligning means 5. FIG. In this embodiment, the edge aligning means 5 includes a bottoming chute 5f fixed to the discharge side of the folding means 3 and a transfer conveyor 5g attached thereto. The bottom punching chute 5f has a groove shape, and the feeding claw 55 of the transfer conveyor 5g is inserted into the groove to transfer the aim postcard assembly C that has fallen into the bottom punching chute 5f. Although the chute 5f for bottom thrusting is not shown, the angle of the wall gradually changes from vertical to horizontal on the downstream side,
In response to this, the concealment postcard assembly C changes its posture and is moved to the transfer belt conveyor 5e in FIG. 1. 7 and 8 illustrate a jI2 embodiment of the invention. This embodiment is for producing a tri-fold type concealment postcard E having two sets of concealment parts ext e2 as shown in FIGS. 9(a) and 9(b). Incidentally, FIGS. 7 and 8 are examples of obtaining the Z-fold type covert postcard shown in FIG. 9(a). The postcard paper A used to obtain this three-fold type hidden postcard E has a width three times that of a normal IN letter, as shown in Fig. 8, and the front side has 1/3 cotyledons A1, A2, A, of which two cotyledons Ai. A2 has a first concealing printing part a,
Cotyledon A that remains after a has been applied. A front print part f for address, name, etc. is printed on the front. And on the back side there is a second concealment printing section "' + a
' will be applied. In the two-fold format, the cotyledon A with the front printing part f is printed, and the second concealment printing parts a' and a' are printed on the back side of the adjacent cotyledon A2, and the sender's name is printed on the back side of the remaining cotyledon Ai. A printed part f'' displaying address, name, etc. is applied.In the case of the wrap-around folding format shown in Fig. 9(b), a second concealing printed part is placed on the front side of one cotyledon A3 at the end. On one side, and on the back side of the cotyledon A at the other end, one side of the second concealing printing part is applied, and on the back side of the remaining cotyledon A2, A, the front printing part and the printing part are applied. In the example, in the first step, the triple-sized postcard paper A is folded in half at the middle of the first concealing printing section ava, that is, at the middle of the cotyledons A1A, and between the cotyledons A and A2, the above-mentioned concealing paper is folded in half. Plastic film B is sandwiched,
A semi-finished postcard C' is produced by heating and printing, and then, as a second step, a second concealment printing part 1.81
It is folded in half in the middle, a concealing plastic film B is sandwiched therebetween, and the desired concealed postcard E is produced by heat pressing. The mechanism of the first stage is the means 1 for supplying the postcard paper AI.
-, followed by a conveying means 2 for conveying the postcard paper A, and the conveying means 2 is provided with an IJ and a first folding means that partially shares this.

[The plastic film B for concealment is drawn out to the starting side of the two folds, and cut to the required length J. The sandwiched bifold postcard paper of different length is removed and the receiver is bottomed out, and the edge aligning means 5 stores the concealing plastic film B in a predetermined position, and the edge aligned concealment postcard assembly is heated under pressure and heat fused A heat-blessing means 6 is provided for fusing the substance to the postcard. The structure of the mechanism described above is basically the same as that shown in the embodiment shown in FIGS. 1 to 3, and the same part numbers J and the same reference numerals are given, and the explanation thereof will be omitted. The difference is that the stopper 210 of the first folding means 3 is moved back by one cotyledon A6. This can be realized by making the position of the stopper 2]-◯ variable. For convenience, a long hole may be provided in one of the walls of the guide 21, a shaft connected to the stopper 210 may be protruded from the long hole, and the shaft may be tightened and loosened by thumbscrewing. In addition, in this first step, the heat-fused substance is attached to two cotyledons A,
, A2 complete 1. The fixed heater 6b of the first heat press means 6 is fixed because it is only necessary to fuse one side without fusing, that is, the surface that is later inserted in the middle and is difficult to transmit heat during the second heat press. It may be replaced with a cradle named 1, or the power supply to the heater may be stopped. The second stage mechanism shares a part of the conveying means 2' with a means 2' for conveying the semi-finished postcard C' discharged from the pull-out roller 6d of the first heat press means 6, and 1. A second folding means 3' that folds C'' into two from the middle and discharges the sheet, and a second film that inserts a concealing plastic film B between the left and right cotyledons in the folding process. The narrow-sense means 4' and the second folding means 3'' are located on the discharge side and the concealing plastic film B is sandwiched therebetween. and a second heat press stage 6' for finally pressurizing and heating the covert postcard assembly to bond the heat-sealing substance to the cotyledons. The structure of this second stage mechanism is the same as that shown in FIGS. 1 and 3, and the second heat press means (1' is
The fixed beater 6a and presser beater 6b are activated to heat both sides. To obtain a concealed postcard stack of the type shown in FIG. 9(b), a conveyor with a 180-degree reversing means may be interposed between the first heat press means 6 and the conveying means 2'. Alternatively, the postcard paper A in FIG. 8(a) may be conveyed with the right and left side reversed, and the folding position of the postcard paper in the first stage may be changed to
Heat press the oppositely facing postcard paper at the border with the -f leaf A1A2 (corresponding to the border between cotyledons A and A2 in Fig. 8), heat press with the short folded side facing upward, and heat press the second leaf. Just do the folding. In this case, of course, the position of the stopper in the first folding means 3 will change. Incidentally, it is of course possible to obtain two sets of hidden portions ex+ez in the second embodiment. In this case. The stopper position of the folding means 3 is set to a position corresponding to the triple size postcard paper, and the operation of the fixed heater 6a is stopped, and in this state, the device is operated to perform a half ring l! ! Then, as a second step, the semi-finished cover sheets MC' are stacked on the supply means J, the stopper position of the folding means 3 is set to the position for double size postcard paper, and the fixed heater 6a is In addition, in the second embodiment, it is possible to selectively produce both a concealed postcard having one set of concealing parts and a concealing postcard having two sets of concealing parts ex+ez. In this case, an intermediate conveyor that can be freely rotated is arranged between the first heat press means 6 and the conveying means 2'', Direction away from the line,
The concealed postcard ejected from the 1st heat breather 6 is stolen by 2
Of course, in this case, set the stopper position to a position corresponding to the size of the postcard [5, and operate the fixed heater 6a. Action] In the first embodiment, the double-sized postcard paper A is sucked from the stacked state by the suction unit 17 and transferred to the conveying means 2 by the swinging arm 16. Once transferred, the supply motor 12
is deactivated. The double size postcard paper A is forwarded by the lower belt conveyor 2.1.2b, and the belt]
Enter the guide 21 from p, 20a, 20b. The forward movement of the bar is detected by the first sensor 8a (thereby, the motor 4
4 is activated, rotates the pinch roller 4a, rotates the rotary blade 41, and index-rotates the rotating body 5a, so that the bogget 5c is placed on standby directly below the folding means 4. The plastic film for concealment is pulled out from the original by the pinch roller 4a until the lower end of the film approaches the postcard paper A that is entering the guide 21 as shown in FIG. 1-0. on the other hand. Postcard paper A is moved forward through the guide until it reaches the stopper 210.
The leading edge of the postcard comes into contact with the postcard, and at this time, the rear part of the postcard paper is continuously fed out by the belt wheels 20a and 20b.
As shown in Fig. 11, the folding roller 20e and the belt wheel 2
It is bent between the ends of the paper and begins to be folded by the folding roller 20e and the belt pulley 20b. At the same time or just before this folding, the rotating blade 4 aligns with the fixed blade 40, so that the concealing plastic film B is cut to a predetermined length. On the other hand, when the postcard paper A enters the inner number of the guide 21 as described above, the second sensor 8b detects this and activates the feeding mode 12 to start feeding the next postcard paper A. Concealing plastic film B uses folding roller 20
e and the vertical m of the red folding opening made with the belt wheel 201)
,,,h, the tip is in contact with the leaflet, so
As the postcard paper A is folded, it is sucked into the folding roller 20c and the belt wheel 20b, and is sandwiched between the left and right fresh leaves A1 and A2 as shown in FIG. Postcard paper A and concealing plastic film B have different coefficients of friction, and also differ in the strength of the acting force from the sides. Therefore, if the film is pinched too quickly, the film will be pinched by the V-bottom of the folded postcard paper and folded. Therefore, if the controller cuts and drops the film at a slightly slower timing, the concealing plastic film will not come into contact with the bottom of the folded paper, but will protrude slightly above the folded postcard paper A as shown in Figures 1 and 3. It is discharged from the folding means 4 in the state of
Then, when the bifold postcard paper A comes into contact with the bottom of the pocket 5C, the concealing plastic film B slides down due to the impact, the leading edge reaches the bottom of the fold, and the trailing edge falls within the width of the postcard. It fits properly. Thereby, it is possible to obtain a convenient peeling operation ad on one side in the width direction of the bifold postcard paper A when opening the envelope later. As described above, when the two-fold postcard paper A with the concealing plastic film B sandwiched therebetween is dropped into the pocket 5C and the edges are aligned, the rotating body 5a is rotated by the indexing mechanism, and the edges are aligned. The postcard assembly C is placed on the transfer conveyor 5e and forwarded. The forward-fed concealment postcard assembly C is fed into the heat press means 6 by the feed roller 6C. The concealing postcard assembly C that has entered the heat press means 6 pushes up the presser heater 6b against the force of the bias 65.65, whereby the concealing postcard assembly C is pressurized.
heated at the same time. Due to this pressurization and heating, the heat-fusible material in contact with the concealing printed parts a, a melts and permeates into the fibers. this

[From J, the back sides of the transparent plastic films b and b are joined to the raw leaves A and A2, and they are collected in the stocker from the pull-out roller 6d or sent to the inspection line by the carry-out conveyor. In the second embodiment, the concealment postcard paper A of triple size is supplied to the supply device W.
] is sent to the conveying means 2, and when the leading edge contacts the stopper 2]0 corresponding to the postcard medium method, the boundary line between the T-sheets A1 and A2 on which the first concealment printing parts a and a have been applied. The plastic film B for concealment is sandwiched between the cotyledons A1 and A2 by the first film means 4 in the same way as in the first embodiment. Then, by bottoming out the pocket 5c of the first selvage aligning means 5, the plastic film B for covering the number Jm is neatly stored so that the peeling operation edge d is created as in the first embodiment. The covert postcard assembly thus obtained is
It is sent from the transfer belt conveyor 5e to the first heat press means 6, and only one side is heated to a high temperature (the other side may also be lightly heated). In this way, a double-sized homemade concealment postcard C" is produced in which the heat-fusible substance of the concealment plastic film B is fused to at least the first concealment printing parts a and a. Next, the homemade concealment postcard C" is made. C' is forwarded through the conveying means 2', and its tip abuts against the stopper 210 provided on the guide 21 of the second folding means 3', and as in the case of the first embodiment, the belt pulley 20a and While being folded by the folding roller 20e along the center line of the cotyledons on which the second concealing printed portions a+ and al have been applied, the concealing plastic film B fed out and cut by the second film narrow means 4' is inserted; The edges are aligned by falling into the second edge aligning means 5', and the assembly CI+ in which the concealing plastic film B is tightly housed is formed, and the assembly CI+ is sent as it is to the second heat press means 6', where the presser heater 6b and the fixed heater are 6a, the unfused or incompletely fused heat-sealing material of the first concealing printed parts a, a is completely fused, and at the same time, the second concealing printed parts a are heated under pressure from both sides. '
, a' are fused, and thus a trifold concealed postcard E having two sets of concealed portions e, , e, as shown in FIG. 9 is completed. [Effects of the Invention] According to the first aspect of the present invention described above, an excellent effect can be obtained in that a 1ilWi1 postcard that is folded in two and is easy to open can be automatically and efficiently produced. According to item 2, an excellent effect can be obtained in that a concealed postcard that is easy to open even in a tri-fold A7 format can be automatically and efficiently produced.

[Brief explanation of drawings]

Fig. 1 is a side view showing the first embodiment of the present invention, Fig. 2 is a perspective view showing the process of manufacturing a covert postcard according to the invention, Fig. 3 is an explanatory diagram showing the drive system in the first embodiment, Fig. 4 The figure is a sectional view showing another embodiment of the ear aligning means in the present invention.
6 is a rear view of the same, FIG. 7 is a side view showing the second embodiment of the present invention, and FIG. 8 is a side view of the second embodiment of the present invention.
A perspective view showing the concealment postcard manufacturing process in the example, FIG. 9 is a cross-sectional view of the concealment postcard made in the second embodiment, and FIGS. 10 to 13 are steps of folding, concealment film sandwiching, and edge alignment. It is a side view which shows step by step.

Claims (6)

[Claims] (1) Includes means for sequentially supplying double-sized postcard paper with required concealment printing on the surface, and part of a conveying means downstream of the postcard paper supply means, and the postcard paper is folded in half and discharged. a folding means for folding, a film means for cutting two close-contact transparent plastic films having a heat-fusible material on the back to a required length and inserting the cut sheets between the left and right sides of postcard paper during the folding process; and a transparent plastic film. The present invention is characterized by comprising a means for receiving and aligning the edges of the folded postcard paper sandwiched between the edges, and a heat press means for pressurizing and heating the edge-aligned concealment postcard assembly to bond a heat-fusible substance to the postcard. A device for manufacturing concealed postcards. (2) A means for sequentially supplying postcard paper of triple size with first and second concealment printing on the front and back sides, respectively, and a conveying means downstream of the postcard paper supply means, 1. A first folding means for folding the film into two with the middle of the concealing printing as a boundary and discharging the film; and a first folding means for folding the film into two with the middle of the concealing printing as a border and discharging the film; A first film narrow means to be inserted between the left and right sides of the postcard paper in the process, a first edge aligning means for receiving and aligning the edges of the bifold postcard paper sandwiching the transparent plastic film, and pressurizing the edge aligned concealment postcard assembly. a first heat press means for heating to fuse at least one side of the heat-fusible material to the postcard; a means for conveying the double-sized semi-finished postcard discharged from the first heat press means; and this conveyance means. a second folding means for folding the semi-finished postcard in half at the middle of the second concealment printing and ejecting the semi-finished postcard; a second film narrowly defined means for feeding out and cutting to a required length and inserting it between the cotyledons of the semi-finished postcard during the folding process; and a second edge aligning means for receiving and aligning the edges of the half-folded semi-finished postcard with the transparent plastic film sandwiched therebetween. and a second heat press means for pressurizing and heating the edge-aligned covert postcard assembly to bond a heat-fusible material. (3) The folding means includes a pair of belt wheels that feed out the postcard paper, a roller that rotates in contact with one of the pair of belt wheels, and a side of the V-shaped opening formed by the belt wheel and the roller. A guide according to claim 1 or 2, further comprising a guide that bends the postcard paper from a predetermined portion by abutting the leading edge of the postcard paper fed by a pair of belt wheels. A device for manufacturing concealed postcards. (4) Film narrowly defined means include a pinch roller that pulls out a transparent plastic film with a heat-fusible material layered on the back from the original roll, and a pinch roller located downstream of this that cuts the transparent plastic film into a size slightly shorter than the size of a postcard paper. An apparatus for manufacturing a concealed postcard according to claim 1 or 2, further comprising a cutter for cutting. (5) Claim 1 or 2, wherein the means for aligning the edges of the transparent plastic film and the folded postcard paper is an intermittent rotating body having a plurality of pockets for bottoming out on the outer periphery. A device for manufacturing concealed postcards. (6) The means for aligning the edges of the transparent plastic film and the folded postcard paper comprises a stationary bottoming chute and a transport mechanism arranged such that a feed claw is located within the chute. The apparatus for manufacturing a concealed postcard according to any one of paragraphs 1 and 2.