JPH0667305U - Film cartridge for automatic sealing machine - Google Patents

Abstract

(57) [Summary] [Purpose] In a film cartridge for an automatic sealing machine that holds a sealing film formed by joining the ends of two roll films, the stability of the center of gravity during carrying and loading is improved, and further To facilitate the attachment / detachment to / from the cartridge holding member. A film cartridge has hollow semi-cylindrical film accommodating portions 14b and 14c for vertically fitting and holding a roll film, and a transfer path for a tray to be advanced between the film accommodating portions. Opening 1
4a, and a handle portion 14h is provided substantially at the center of the opening side portion of the back surface of the upper film accommodating portion 14b. Also,
Engaging portions 14f, 14 for detachably engaging the upper end of the upper film accommodating portion and the lower end of the lower film accommodating portion with the cartridge holding member 23 attached to the sealing machine.
g is provided, and these locking portions have a structure in which the upper locking portion can be locked after the lower locking portion is locked.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention covers a recording paper or printed matter discharged from an upstream device (this is referred to as a document in this specification) with a sealing film formed by joining the ends of two roll films, and The present invention relates to a film cartridge for holding the sealing film in an automatic sealing machine that seals a document by welding the periphery.

[0002]

[Prior art]

 Documents discharged from an upstream device such as an image forming device are stacked and aligned on a tray that is movable in the front-back direction, and the tray is joined by joining the top and bottom roll film tips of the film supply section. State that the film and the document are pushed between the transport rollers in the separated state, the film is fed from the film supply section, and the transport roller is closed to hold the leading edge of the film and the document. After retreating only the tray, the transport rollers are rotated to cover the upper and lower sides of the document with the film for synchronous transport, and both sides of the transported film are welded by the welding means. Recently, an automatic sealing machine has been proposed which seals the document and discharges it out of the machine by welding and cutting the film by means of a welding and cutting means behind the rear end.

[0003]

[Problems to be solved by the device]

 In such an automatic sealing machine, the sealing film is installed in the film supply section with the leading ends of the upper and lower roll films joined together, and is held so as to block the document transfer path by the tray.

By the way, since the film is a consumable item, a new roll film must be replenished when it is used up. If a film jam occurs, the roll film must be removed from the film supply section and reloaded for maintenance.

Therefore, it is desirable that the roll film is loaded and held in a state where it can be easily attached to and detached from the film supply unit. In addition, the roll film has a weight of about 1 kg per roll of 100 M, and a weight of about 2 kg per two rolls. Therefore, it is desired that the supply or removal of the film can be done quickly and safely. From this point of view, it is desired to use a film cartridge that can easily hold two roll films in an exchangeable manner. If a film cartridge is used, it is required that it can be easily and accurately set on the sealing machine even if it is not a specialized staff member. Furthermore, the film cartridge must be fully loaded with two roll films loaded. Since it weighs as much as 2.5 kg, it is desirable to handle the film cartridge safely during replacement.

The present invention has been made in order to meet the above-mentioned demands, and the roll film can be easily handled and carried with a high degree of safety, and can be attached to the cartridge holding member in the correct orientation. It is an object of the present invention to provide a film cartridge for an automatic sealing machine that can be easily attached and detached.

[0007]

[Means for Solving the Problems]

 To achieve this object, in the present invention, the film cartridge has a hollow semi-cylindrical film accommodating portion for fitting and holding the roll film up and down, and a forward movement between the film accommodating portions. It is characterized in that it has an opening serving as a transfer path for a tray to be formed, and a handhold is provided substantially at the center of the opening side portion of the back surface of the upper film accommodating portion. In addition, the upper film storage portion has an upper end portion and the lower film storage portion has a lower end portion with locking portions for detachably locking the cartridge holding member mounted on the sealing machine. The locking portion is characterized by having a structure in which the upper locking portion can be locked after the lower locking portion is locked.

[0008]

[Action]

 There is a handle at the center of the upper film storage that holds the upper roll film, so if you lift the film cartridge with one hand, the center of gravity will be on a substantially vertical line, and the balance will be good. You can have a stable. In addition, since the upper locking part can be locked after the lower locking part is locked, the locking part of the lower film housing part is locked to the cartridge holding member. By locking the locking portion provided on the upper film accommodating portion to the cartridge holding member, it is possible to reliably and safely attach and detach.

[0009]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. In this embodiment, a heat roller is used as the welding means for welding the left and right ends of the film, and a heat cutter is used as the welding cutting means for cutting the film by a predetermined length, but the invention is not limited to this. Not a thing. For example, high frequency irradiation means can be used for welding the left and right ends, and a combination of high frequency irradiation means and room temperature cutting means can be used for welding cutting. Figure 1 shows that the tray loaded with documents is transferred, the upper and lower roll films are fed out, the document and film are continuously conveyed, the document is covered with the film, and the left and right ends of the film are welded together. FIG. 2 is a cross-sectional view of a specific example of the overall configuration, showing a schematic configuration mainly of a drive system, mainly showing the schematic configuration of an automatic sealing machine that seals a portion by welding.

A in FIG. 2 is an upstream device for discharging a document. The upstream device A is, for example, an image forming device such as a facsimile receiver, a copying machine, or a printer, which prints on paper at that time and discharges the paper one by one, or a specified number of sheets from the accumulated ready-made documents. It is a document feeding device that continuously discharges up to. The automatic sealing machine B according to the present invention is used by being connected to the upstream device A.

As shown in FIG. 1, the automatic sealing machine B generally includes a take-in section B1, an upper ejecting section B2, a matching section B3, a film supplying section B4, a sealing section B5, and a lower ejecting section. It has a section B6.

The take-in section B1 takes in the document P discharged from the upstream apparatus A into the sealing machine B, and includes a take-in roller 2 provided near the take-in port of the housing 1. A motor ICM for rotating the take-in roller in a predetermined direction, a gate 3 provided on the downstream side of the take-in roller for switching the advancing direction, and a drive unit for rotating the gate 3 between upper and lower positions, for example, a solenoid. It consists of FLSOL. The capture section B1 is provided with a sensor S1 for detecting the presence / absence of a document to be captured. The solenoid FLSOL is normally in a demagnetized state and holds the gate 3 on the upper side, and when excited, turns the gate 3 on the lower side. When the non-sealing command input switch of the operation unit (not shown) provided in the sealing machine is pressed, it is immediately excited and the gate is rotated to the lower side. On the other hand, when the non-sealing command input switch is not pressed, when the document discharged from the upstream device A is detected by the sensor S1, until the front half of the document passes through the intake roller 2. During this period, the gate 3 is excited to rotate the gate 3 to the lower side.

When the gate 3 is on the lower side, the document P taken in by the take-in roller 2 is stacked on the upper discharge tray 5 via the upper discharge roller 4 constituting the upper discharge section B 2, and is placed on the upper side. In this case, it is loaded on the matching section B3 on the downstream side.

The take-in roller 2 has a plurality of rollers separated in the direction of the rotation axis, and the gate 3 has a plurality of blades that rotate between the rollers of the take-in roller connected to a support shaft. Comb-shaped ones are used. Therefore, when the gate 3 is rotated to the lower side while the capturing roller 2 is capturing the aligning portion B3, the captured document is corrugated in a wavy shape, so that the waist is strengthened and the document flies. The property is improved.

The aligning section B3 has a tray 6, an aligning roller 7, a gate 8, a clamper 9, a tray moving means 10, a stapler 11 and a stapler moving means 12.

The tray 6 has a stacking surface on which documents to be taken are stacked, and a side wall which stands up on one side of the stacking surface and serves as an alignment reference surface in the width direction of the documents. The alignment roller 7 is moved by a solenoid ALSOL between a position close to the stacking surface of the tray 6 and a position separated from it, and is rotated in a fixed direction by a motor ALM. The alignment roller 7 close to the stacking surface is provided so that the document flying from the take-in roller 2 to the upper surface of the tray 6 is obliquely fed toward the side wall of the tray by the rotation of the motor ALM.

The gate 8 is mounted on the lower side of the front end portion of the tray 6 so as to rotate around a support shaft and can be raised and lowered, and is always biased in the standing direction by a spring (not shown) wound around the support shaft. I am doing it. When the tray 6 is at the home position (retracted position), the gate 8 stands up to serve as the alignment reference plane in the longitudinal direction of the document, and the top of the tray is obliquely fed by the alignment roller 7 to the leading edge of the document. Stop and align the leading edges of all documents.

On the side wall of the tray 6, there is provided a clamper (paper pressing means) 9 for holding the document in the front and rear by sandwiching the document each time the document is aligned on the tray. This clamper is composed of a pressing piece 9a which comes in contact with and separates from the upper surface of the tray, and a solenoid PCSOL which makes the pressing piece come into contact with and separate from the pressing piece.

The tray moving means 10 reciprocates the tray 6 in the front-rear direction (left-right direction in FIGS. 1 and 2), and includes a reversible motor TRM, a belt 10c wound around front and rear pulleys 10a and 10b, The motor TRM includes a connecting piece 10d for connecting the tray 6 to the belt 10c, a guide shaft 10e for guiding the tray in the front-rear direction at a predetermined angle, and an engaging piece 10f for engaging the tray 6 with the guide shaft. The tray 6 is reciprocally moved between a retracted position shown by a solid line in FIG. 2 and an advanced position shown by a chain line by being controlled and driven by a controller.

The stapler 11 is provided on the side opposite to the side wall of the tray 6, is stacked on the tray, is aligned by the aligning roller 7 and the gate 8, and is pressed by the clamper 9 to give a stapling command to the document P. It is for binding when received. Since the structure itself is known, detailed illustration is omitted. The stapler 11 is also moved back and forth by another moving means 12 including a motor STM, front and rear pulleys 12a and 12b, a belt 12c, and a connecting piece 12d. The stapler 11 has a home position at the front portion of the tray 6 in the retracted position (moved backward for convenience in FIG. 1), and one of the documents aligned on the tray. When binding the front side portion, the binding operation is performed at the home position, and when binding at one side central portion and / or the rear portion of the document, the binding operation is performed after moving to a predetermined position by the motor STM to the rear. . In this case, the tray moving means 10 also advances the tray at the same time and moves relative to the stapler, thereby aligning on the tray, shortening the time required for binding as much as possible, and downsizing the apparatus. There is.

A film supply unit B4 according to an embodiment of the present invention is provided on the downstream side of the matching unit B2. The film supply unit B4 is equipped with a film cartridge 14 according to the present invention, which is loaded with the sealing film 13. As shown in FIG. 3, the sealing film 13 is formed by joining 13c the ends of roll films 13a and 13b wound around a first film shaft 15a and a second film shaft 15b, respectively. The cartridge 14 has an opening 14a at the center, and film accommodating portions 14b and 14c opening on the upper and lower sides of the opening in the downstream direction. As shown in FIGS. 14 is loaded from the opening surface side, and the film shaft is attached to the bearing portions 14d and 14e formed at both ends of the accommodating portions 14b and 14c, with the joint portion 13c at the leading end of the roll film positioned at the center of the opening portion 14a. It is rotatably held by supporting 15a and 15b.

Further, the cartridge 14 is provided with a hand-holding portion 14h that allows one hand to be placed in the center of the opening 14a-side portion of the back surface of the upper film accommodating portion 14b. Since the handgrip is provided at this position, even if a new film is held in this film cartridge and it is relatively heavy, it is possible to maintain a high center of gravity stability when holding it with one hand on the handgrip 14h. Can be carried. Further, the film cartridge 14 has an engaging projection 14f at the lower end of the lower film accommodating portion 14c and an engaging projection 14g at the upper end of the upper film accommodating portion 14b as detachable engaging means for the sealing machine. Has been formed. Then, the lower engagement protrusion 14f is engaged with the engagement hole 16a formed at the lower end of the mounter 16 attached to the sealing machine, and then the upper engagement protrusion 14g is attached to the mounter 16. By engaging with the locking projection 16b formed on the upper end, it is detachably mounted.

As shown in FIGS. 3 and 4, the cartridge 14 is provided with a plurality of fixed rollers 17a corresponding to the upper and lower film accommodating portions 14b and 14c at appropriate intervals. In addition to having the fixing rollers 17b close to both sides of the central opening 16c corresponding to the opening 14a of the film cartridge, on both sides thereof, a direction in which the fixing roller 17b is separated from the fixing roller of the film cartridge by an urging means 170 described later, that is, A plurality of movable rollers 17c urged in the upstream direction are arranged between the fixed rollers 17a so as to be movable in the distance.

FIG. 6 shows a part of the structure of the cushion mechanism on the mounter 16 side. Explaining an example of the urging means 170 shown in FIGS. 4 to 6, the side wall 171 provided upright on both left and right sides of the mounter 16 has a longitudinal direction in which the film 13 is fed out at symmetrical positions with the transport path sandwiched therebetween. A predetermined number of vertical holes 172 (in this example, two holes are sandwiched across the opening 16c serving as a transport path), and each of the vertical holes 172 is provided with the movable roller 17c movable in the vertical hole 172. It is fitted. On the outer side of the side wall 171, a movable plate 174 having two laterally elongated holes 173 having a width capable of collectively locking the ends of a plurality of movable rollers 17c located symmetrically with respect to the conveyance path is arranged. Both ends of the movable plate 174 are pivotally supported by screws 176 at the other ends of a pair of arms 175, one end of which is pivotally supported by the side wall 171.

Therefore, the movable plate 174 and the arm 175 form a link mechanism, and the movable plate 174 can move together with the movable roller 17c in the longitudinal direction of the vertically elongated hole 172. A spiral spring 177 for urging the movable plate 174 upward is provided between the arms 175 and the side wall 171.

The fixed rollers 17a and 17b, the movable roller 17c, and the urging means 170 constitute a tension mechanism 17 that gives a buffering action and a tensioning action to the film in the cartridge. As a result, when the cartridge 14 loaded with the film 13 is attached to the mounter 16 as shown in FIG. 7, the sealing film 13 becomes a fixed roller and a movable roller of the tension mechanism as shown in FIG. 8 (a). It is held in a zigzag manner in the meantime, and is stretched at the opening 14a and the opening 16c so as to block the transfer path of the document transferred by the forward movement of the tray 6.

Further, a fixed roller 17d corresponding to the fixed roller 7a closest to the roll films 13a and 13b of the film cartridge is provided on the side of the mounter 16 opposite to the opening 16a of the movable roller 17c. As a result, when the film cartridge 14 loaded with the film as shown in FIG. 7 is mounted on the mounter, as shown in FIG. 8B, the film 13 is held between the opposed fixed rollers 17a and 17d. Then, when a force in the downstream direction is received from the advancing tray 6 or the conveying roller 18 which will be described later, the film is smoothly fed out. However, as shown in FIG. 7A, the force from the tray or the conveying roller is released. The back tension applied to the film 13 from the tension mechanism 17 at the time of being pulled is not easily pulled out. Note that FIG. 8A shows the initial state of the film supply, and the tension mechanism 17 absorbs the film slack. Further, (b) shows a state during the sealing operation, in which the film is strained.

The mounter 16 is supported by a cartridge holding member 23 fixed to a drawer 31, which will be described later, so as to be vertically movable. The cartridge holding member 23 has a length that allows the film cartridge 14 to move up and down between a predetermined position and a retracted position, extends from the upper part to the lower part in the sealing machine, and is a guide opening opposite to both sides. The mounter 16 has a frame member 25 having a groove 24, and the mounter 16 has guide rollers 26 on both side surfaces which are fitted into the guide groove 24 and roll. Then, a wire 28 is wound around the rotation shaft of the motor FCM provided on the drawer 31 and the pulleys 27 provided on the lower part and the upper part of the cartridge holding member 23, and the wire 28 is connected to the wire via the connecting piece 29. The unta 16 is connected. As a result, by the rotation control of the motor FCM, as shown by the solid line in FIG. 2, the position where the center of the opening 14a of the cartridge coincides with the document conveying path by the tray 6 (FIG. 7 also shows the position at this time). 2) and the position where the cartridge 14 is retracted below the document transport path, as indicated by the chain line in FIG.

A sealing unit B5 is provided on the downstream side of the film supply unit B4. This sealing unit carries out welding cutting (heat cutting) at a predetermined length (a length sufficient to wrap the document) with a conveying roller 18 for sandwiching and conveying the film 13 covering the document from the upper and lower surfaces thereof. And a heat roller 20 for welding (heat sealing) both sides of the film 13 that covers the document from both the front and back sides.

A discharge part B6 is provided on the downstream side of the sealing part. The discharge part B6 deposits the discharge roller 21 for discharging the sealed material SM formed by the heat cutting by the heat cutter 19 and the heat sealing by the heat roller 20 to the outside of the housing 1, and the sealed material discharged. It is composed of a bottom discharge tray 22.

A common transport motor MM for rotating the transport roller 18, the heat roller 20, and the discharge roller 21 in a predetermined direction is connected to the transport roller 18, which includes a driving roller and a driven roller. A drive unit for opening and closing these with respect to the transport surface, for example, a motor TAM, a cam and a follower (not shown) are connected, and the heat cutter 19 is provided with a cutting blade 19a and a pedestal 19b constituting the heat cutter 19. A drive unit for approaching and pressing each other, for example, a motor HCM and a cam and a follower (none of which are shown) are connected, and further, a drive unit for bringing the heat roller 20 into and out of contact with the transport surface, for example, The motor HRM is connected to a cam and a cam follower (neither is shown). A heater HC that heats up at a temperature that can melt the film 13 is built in the cutting blade 19a of the heat cutter, and a heater HR that heats up to a temperature that can melt a film is also provided inside the heating roller 20a of the heat roller 20. It is built in.

The automatic sealer B is provided with at least two sensors S2 and S3 in addition to the sensor S1 of the intake section B1. The sensor S2 serves both to detect the leading edge of the film and to detect a cutting position detection mark, which will be described later, provided on the film. The sensor S2 is provided between the transport roller 18 and the heat cutter 19, and the film is supplied from the film supply section B4. It can be detected that the carriage 13 has begun to be fed by the transport roller 18. Further, the sensor S3 is for detecting that the conveyed film and document have passed through the sealing section B5, and is provided in the vicinity of the discharge roller 21.

In the automatic sealing machine according to the present invention, as shown in FIG. 9, the upstream device A and each of the sensors S1 to S3 form an interface circuit 100, and motors ICM, ALM, The STM, TRM, FCM, MM, TAM, DRM, HCM, HRM, solenoids FLSOL, ALSOL, PCSOL, and heaters HC, HR are driven by drive circuits (not shown) for driving them, respectively. The interface circuit is connected to the interface circuit 100, and the interface circuit is connected to a microcomputer 200 including a central processing control unit CPU, a storage unit ROM, and a RAM. As the function realizing means, the CPU operates the take-in control means 201 that specifies the take-in direction of the gate 3 of the take-in section B1, the adjustment control means 202 that controls the rotation and elevating timing of the aligning roller 7, and the operation of the stapler 11. And a stapler control means 203 for controlling the stapling movement means 12, a tray control means 204 for controlling the tray movement means 10, a conveyance motor MM for controlling the conveyance roller 18, the heat roller 20 and the discharge roller 21. The control means 205, the film supply control means 206 for controlling the film supply through the opening / closing control of the nips of the transport rollers via the drive section TAM, the retraction control means 207 of the film supply section, and the opening / closing drive section HCM of the heat cutter 19. To control the heat cutter control means 208 and the opening / closing drive unit HRM of the heat roller 20. Because of the heat roller control unit 209, and a jam detection means 210 and the film remaining low detection unit 211.

The jam detection unit 210 determines that a jam has occurred and outputs a jam detection signal when the sealed-end detection signal is not input from the sensor S3 within a predetermined time from the time when the film leading edge detection signal is input from the sensor S2.

As shown in FIG. 10, the roll film 13a used as the front side film of the sealing film 13 has a transparent address window 131 for each predetermined length and a strip-shaped transparent portion extending in the full width direction of the film. A cutting position detection mark (hereinafter, simply referred to as a registration mark) 132 composed of is provided on both sides of the film 13a except for the address window 131 and the registration mark 132. The recorded content of the document covered with is printed with a predetermined density (light transmittance) d 1 that is invisible to the outside, and corresponds to at least the sensor S2 in a predetermined length on the winding start side with respect to the film shaft 15a. On the other side, that is, on the other side when the remaining length of the film 13a becomes the length of a few more sealed items due to consumption, Are printed in dark concentration d2 than the previous concentration d1 is. It should be noted that the roll film 13b used as the back side film has the entire surface printed with the density d1.

As a result, as shown in FIG. 11, the output clearly differs from the light receiving element of the sensor S2 depending on the presence / absence of a film between the transport roller 18 and the heat cutter 19, the presence / absence of a registration mark, and the presence / absence of a remaining film. Levels L1 to L4 are obtained. L1 has no film, L2 has film 13a and film 13b, and the registration mark of film 13a is detected, L3 has both the front and back films, and the registration mark of film 13a is not detected, L4 and L4 are the respective output levels when the film is running low.

Therefore, the heat cutter control means 208 drives the heat cutter opening / closing motor HCM when the output level of the sensor S2 is L2. The film remaining amount detecting means 211 outputs a remaining amount detecting signal when the output level of the sensor S2 is L4.

Further, the interface circuit 100 is further connected to a door opening detector S4 that outputs an opening detection signal when the door is opened when the drawer 31 is pulled out, and the display unit 300, as described later. There is. The CPU displays the film remaining amount on the display unit 300 based on the film remaining amount detecting signal from the film remaining amount detecting means 211 to notify the operator of the film shortage. Further, the CPU causes the display unit 300 to display that fact based on the jam detection signal from the jam detection means 210.

Next, the operation of the above configuration will be described with reference to FIGS. Now, only the operation when the sealing machine inputs the sealing command signal will be described. FIG. 12 is a time chart from the time when one document is fetched from the upstream device A to the sealing machine B to the time when it is aligned, FIG. 13 is a time chart at the time of document binding, and FIG. 14 is the time of the sealing operation in the sealing unit. It is a chart. 15 to 19 are cross-sectional views of essential parts showing the operating state of each stage.

FIG. 15 shows the initial state. The tray 6 is in the retracted position, and the transport roller 18, the blade 19a forming the heat cutter 19, the pedestal 19b, and the heat roller 20 are all open. When it is started, first, the document P from the upstream device A is captured, the captured document is aligned, and the heat cutter 19 and the heat roller 20 are warmed up.

In the process of fetching the document, the fetch control means 201 and the matching control means 202 operate to rotate the fetch motor ICM as shown in FIG. It is taken in by the gate 3 toward the matching portion B3. When the sensor S1 detects the leading edge of the document, the solenoid FLSOL is excited for a predetermined time to rotate the gate 3 to the lower side, so that the document flies on the tray 6 and is stacked while forming a corrugate.

Then, the alignment motor ALM is rotated a predetermined time after the sensor S1 detects the leading edge of the document to prepare for alignment, and the alignment roller 7 is moved to the tray after the sensor S1 detects the trailing edge of the document. Descend to the top and feed the documents stacked on the tray diagonally to align them. The clamper 9a is lowered before the aligning roller is returned to the raised position, and the aligned document is pressed onto the tray. This document acquisition / alignment is performed each time each document is ejected, until the upstream device A exhausts a predetermined number of documents.

When the acquisition and alignment of the predetermined number of documents is completed, the stapler control means 203 is operated after the document is pressed by the clamper 9a as shown in FIG. The stapler control unit 203 performs binding on only one front side, only one rear side, or both sides of the document in accordance with the designated binding position for the document. To explain one example, when binding the front portion, the stapler 11 is moved slightly backward by the motor STM and stopped, and the stapler 11 is driven to bind. In the case where the rear portion is also bound, the tray control means 204 is also operated, the motor TRM is started to rotate and the tray 6 is moved forward, and when the stapler 11 and the tray 6 reach a predetermined position due to relative movement, both are stopped. Drive 11 to bind the rear part. After finishing the predetermined binding, the motor STM is reversed to return the stapler to the front position which is the home shift position.

Further, when the predetermined binding is completed, as shown in FIG. 14, the tray control means 204 normally rotates the tray motor TRM to move the tray 6 forward so that the document is conveyed toward the sealing portion. Start. While the document P on the tray 6 is held in an aligned state by the clamper, the tray 6 advances while tilting the gate 8 and conveys the document to the film supply section B4 on the downstream side, as shown in FIG.

The front end of the tray 6 is moved forward to the center of the opening 14a of the film cartridge 14, and the joint between the front side film 13a and the back side film 13b of the film 13 is aligned with the center of the opening. , The tension mechanism 17 lightly taps and pushes the film 13 waiting in a tensioned state in the downstream direction, and as shown in FIG. 16, the film 13 is unwound and the front and back surfaces of the front part of the document are covered with the film. In this state, the film and the front part of the document are transferred to between the conveying rollers 18 in the separated state, and stopped at the forward position.

In this state, the film supply control means 206 operates to close the opened transport roller 18 as shown in FIG. 17 to hold the film and the document and at the same time open the clamper 9. After that, the tray control means 204 returns the tray 6 to the intermediate position where the gate 8 does not stand up again. After that, the transport control unit 205 rotates the transport motor MM and rotates the transport roller 18 almost at the same time when the tray starts to move backward, and transports the film and the document. Following this, the heat roller control means 209 warmed up previously closes the pressure roller 20a and the heating roller 20b of the heat roller 20 to continuously heat seal both sides of the conveyed film. .

Then, when the trailing edge of the conveyed document P passes through the gate 8, the tray 6 is completely returned to the retracted position as shown in FIG. At that point, the gate 8 is restored by the action of a return spring (not shown) and returns to the standing state. As a result, the next document P can be loaded on the tray 6.

The sensor S 2 detects the light transmittance of one side of the film 13 which is conveyed to the downstream side by the conveying roller 18, and gives the output voltage to the control unit 200 via the interface 100. The department monitors the presence or absence of a film, the presence or absence of the registration mark 132, and the presence or absence of a film shortage.

Then, returning to FIG. 14, based on the fact that the sensor S2 detects the registration mark 132 of the film, first, the transport control means 205 stops the rotation of the transport motor MM, and the heat roller control means 209. In order to prevent the heat roller from shrinking due to the continued contact of the stopped film with the heat roller, the heat roller 20 is opened, and the heat cut control means 208 continues the cutting blade of the heat cutter 19 as shown in FIG. 19a and the pedestal 19b are closed, and the film 13 is heat-cut at the registration mark 132.

After the heat cutting, the film supply control means 206 opens the transport roller 18 which has been closed until then, the transport motor MM is rotated again, and the heat roller 20 is closed again at the time of heat cutting. Seal the unsealed parts on both sides of the film between the heat cutter and the heat roller.

As a result, as shown in FIG. 20, both sides are heat-sealed (133) on the downstream side of the heat cutter, and the front and rear are heat-cut (134) at the registration mark 132, and the front surface is A sealed product SM is obtained in which the document P is sealed in the film bag having the address window 131. The sealed material SM is discharged to the lower discharge tray 22 by the discharge roller 21 of the lower discharge portion B6.

As shown in FIG. 13, the front surface film 13 a and the back surface film 13 b on the upstream side of the heat cutter 19 of the heat-cut film 13 are heat-sealed by the heat cutter 19 at their tip portions. Since the back tension is applied by the tension applying mechanism 17 provided in the film supply section, the film returns to its original position.

The film cartridge 14, the transport roller 18, the heat cutter 19, and the heat roller 20 are unitized into a drawer 31, as shown in FIG. The discharge roller 21 may be attached to the drawer 31 in the same manner.

Guide rollers 32 are provided on the front and bottom of the drawer 31, and the guide rollers 31 are provided on the side of the housing 1 so as to extend in the vertical direction in FIG. It is fitted to the rail 33. A handle 34 is provided on the front side of the drawer 31. When the handle 34 is pulled, the guide roller 31 rolls in the guide rail 33 and the drawer 31 is pulled out to the front side. There is.

Then, with the drawer 31 pulled out to the front side, the cartridge 14 is removed from the cartridge holding member 23 and a new film is replenished to the cartridge holding member 23, or a jam is provided between the transport roller 18 and the discharge roller 21. It will be possible to eliminate films and documents that have been deleted.

The drawer 31 has a pinion (not shown) fixed to the rotary shaft of a drawer motor DRM (shown only in FIG. 9) using a reversible motor provided in the housing 1 instead of or together with the handle 34. The drawer 31 may be pulled out by providing a drawer moving means which is provided in the drawer 31 and a rack (not shown) which meshes with the pinion and rotates the drawer motor in a predetermined direction.

By the way, there are cases where the drawer 31 is drawn out for replenishment when the film is consumed, and cases where the drawer 31 is drawn out to eliminate the jam. Regarding the film consumption, when the output level L1 of the sensor S2 shown in FIG. 11 is reached, the control unit 200 determines that the film has been consumed and displays the fact that the film is consumed on the display unit 300.

It should be noted that housing parts 37 and 38 for housing a spare film cartridge 14 S are provided at both lower corners of the housing 1, and the film 13 of the film cartridge 14 loaded on the cartridge holding member 23 is provided. When the film has been used up, the film cartridge 14S housed in the accommodating parts 37, 38 is taken out from the opening on the front side and loaded on the cartridge holding member 23, and the film accommodating parts 37, 38 are emptied. Is replenished with a new spare film cartridge 14S.

Further, at the bottoms of the accommodating portions 37, 38, there are restricting members 39, 40 for restricting the attitude and orientation of the film cartridge 14S at the time of accommodating the same as when the film cartridge 14S is mounted on the cartridge holding member 23. The direction of the film cartridge 14S, which is provided and taken out from the accommodating portions 36 and 37, is regulated at the time of accommodating in the accommodating portions 37 and 38 so that the film cartridge 14S can be loaded onto the cartridge holding member 23 in the same orientation. . It should be noted that the accommodating portion 41 can accommodate a spare roll film 13S for supplementing the empty film cartridge 14 or 14S. The spare roll film may be stored in the storage portions 37 and 38.

[0060]

[Effect of device]

 As described above, according to the present invention, the two roll films are held in the cartridge, which is convenient for handling, carrying and loading. Further, since the handgrip is provided in the rear side of the upper film accommodating portion in the center of the opening side, a relatively heavy film cartridge can be stably carried with one hand and loaded into the sealing machine. In addition, since the lower side of the film cartridge is locked first by the locking portion and then the upper side is locked with respect to the cartridge holding member without using a fastening means such as a nut bolt, the film cartridge can be attached and detached. Can be done easily.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a schematic configuration of an automatic sealing machine according to an embodiment of the present invention centering on a drive system.

FIG. 2 is a cross-sectional view showing a specific configuration of the same enclosing machine.

FIG. 3 is a perspective view of a sealing film and a film cartridge.

FIG. 4 is a cross-sectional view of essential parts showing a positional relationship and a mounting relationship among a film, a film cartridge, and a mounter.

FIG. 5 is an exploded perspective view showing a film cartridge, a mounter, and a cartridge holding member.

FIG. 6 is an exploded perspective view of an essential part showing a part of the biasing means of the movable roller of the tension mechanism.

FIG. 7 is a perspective view showing a state in which the film cartridge is mounted on the mounter.

FIG. 8 is a cross-sectional view showing the action of the tension mechanism and the state of the film during the initial state and the sealing operation.

FIG. 9 is a block diagram showing a control system of the enclosed machine.

FIG. 10 is a perspective view showing an example of a sealing film and a detection position.

FIG. 11 is an explanatory diagram similarly illustrating a detection principle.

FIG. 12 is a time chart illustrating the operation of the capturing unit.

FIG. 13 is a time chart explaining the operation of the stapler.

FIG. 14 is a time chart explaining the operation of the sealing unit.

FIG. 15 is a cross-sectional view of essential parts showing an initial state of the sealing machine according to the present invention.

FIG. 16 is a sectional view showing a film feeding process in the same manner.

FIG. 17 is a cross-sectional view showing a process of holding a film and a document.

FIG. 18 is a cross-sectional view showing a tray retracting step and a film / document conveying step.

FIG. 19 is a cross-sectional view showing a step of heat cutting.

FIG. 20 is a perspective view of the completed sealed product.

[Explanation of symbols]

A upstream device B sealing machine B1 intake section B3 matching section B4 film supply section B5 sealing section 13 film 13a, 13b roll film 13c joint section 14 film cartridge 14a opening 14b, 14c film accommodating section 14d, 14e bearing section 14f, 14g Locking means 14h Handhold part 15a, 15b Film shaft 16 Mounter 16a, 16b Locking means 17 Tension mechanism 17a, 17b, 17d Fixed roller (tension mechanism) 17c Movable roller (tension mechanism) 170 (171 to 177) Biasing means ( Tension mechanism) 18 Conveying roller 19 Heat cutter 20 Heat roller 21 Discharging roller 23 Cartridge holding member

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location // B65H 19/12 B 7130-3F

Claims (2)

[Scope of utility model registration request] 1. A seal formed by stacking and aligning a document discharged from an upstream device on a tray, and moving the tray to the downstream side to transfer the document and an aligning portion for joining the ends of two roll films. Film is held so as to block the end of the document transfer path by the tray, and a film supply unit for feeding the film by the downstream movement of the tray, and the fed film is used as the front and back surfaces of the document. A film cartridge for an automatic sealing machine, comprising: a sealing unit for sealing a document by welding while welding the right and left ends of the film, and sealing the film by welding at a predetermined length. The film cartridge has a hollow semi-cylindrical film accommodating portion for fitting and holding the roll film up and down, and is advanced between the film accommodating portions. It is has a transport path to become the opening of the tray, the upper film accommodating portion of the rear surface of the automatic sealing machine film cartridge, characterized in that a substantially central to the working portion of the opening portion. 2. An upper end portion of the upper film accommodating portion and a lower end portion of the lower film accommodating portion have engaging portions for detachably engaging with a cartridge holding member attached to a sealing machine, These locking parts, after locking the lower locking part,
The film cartridge for an automatic sealing machine according to claim 1, wherein the upper locking portion has a structure capable of locking.