JP4875653B2 - Laminating film connection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a laminated film coupling device capable of rigidly coupling films regardless of a film constitution, and simply detecting a film coupling part without a need of adhesion of a color tape and the like. <P>SOLUTION: A sealant layer on any of top and rear surfaces of a strap film 3 is fused under a posture that preceding and following fed films 1, 2 are abutted on each other, so as to couple both of the fed films. The device comprises pressurization means for holding the films on a table 4 under a condition that the preceding fed film 1 and the following fed film 2 are partially overlaid on each other, a cutter blade 6 installed to a seal bar unit 5 arranged on an upper side, drive means of the table with a heater wire 13, a tool 7 for laying the strap film on the heater wire on bottom face sides of both of the fed films, drive means of the seal bar unit, and drive means for pressurizing ends of the fed films to the heater wire together with the strap film. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a strap film having a printed layer, which is disposed so as to straddle both the rear end surface of a preceding feeding film having a laminated structure and the front end surface of a subsequent feeding film after lamination. The present invention relates to a wrapping film connecting apparatus for fusing the two payout films with a sealant layer and interconnecting the payout films sufficiently firmly and liquid-tightly. In particular, the apparatus of the present invention has a function of identifying a joint portion of a feeding film. For example, a strap film that functions in exactly the same manner as the laminated feeding film itself can be used for filling and wrapping an article to be packaged. It is a laminated film connecting device having a simple structure that can be easily and always properly fused over each feeding film.

  For example, many laminated films for packaging that are used to fill and wrap liquids, powders and granular materials continuously or intermittently with an automatic filling machine are often subjected to a printing process, a laminating process, a slitting process, etc. Although it is applied to an automatic filling machine in a state wound to a predetermined length of 1000 m, 2000 m, etc., the slitter process cuts out a printing defective part, a laminating defective part, etc., and connects the film. In the laminated film for packaging of a predetermined length wound in a roll shape, there may be a plurality of film connecting portions generated in the slitter process.

  In addition to providing excellent liquid-tightness and air-tightness to such a film connecting portion which will be present in a predetermined length of the laminated film for packaging wound in a roll shape, the film connecting portion itself is also covered. For example, Patent Documents 1 and 2 disclose conventional techniques that can sufficiently function for filling and packaging a package.

The prior art disclosed in Patent Document 1 is a film made of the same material as the outer surface of both films in a state where the rear end portion of the preceding packaging film and the front end portion of the subsequent packaging film are overlapped. The sheet is covered over each packaging film and thermally fused to the outer surface of those packaging films, and the prior art disclosed in Patent Document 2 includes a rear end portion of a preceding laminated film, The stretched base film layers are fused and joined to the leading end portion of the subsequent laminated film.
Japanese Patent Laid-Open No. 2005-14508 JP 2002-96391 A

  However, the prior art disclosed in Patent Document 1 is formed by thermally fusing a film sheet made of the same kind of material to the base film or sealant layer of a packaging film that is superposed on each other. When a film sheet of the same type as the base film of an industrial film is heat-sealed, it is necessary to heat at a high temperature because the base film is made of a material having excellent heat resistance. As a result of this, the base film is Due to the heat shrinkage, there was a problem that wrinkles were generated on the packaging film or a large dimensional change occurred.

  On the other hand, when film sheets made of the same material as the sealant layer are heat-sealed to both packaging films and the packaging films are connected, the film sheets are weak against heat, easy to stretch, and have a tensile strength. Therefore, when filling and packaging a packaged item, there is a high possibility that the connecting part is elongated to change the dimensions of the product packaging bag, or that the filling and packaging operation is interrupted due to the breaking of the connecting part. It was.

  Moreover, since the film sheet of this prior art is colorless, even if the connecting portion can function in the same manner as the packaging film in filling and packaging of an article to be packaged, Other than the fact that it is necessary to attach an identification member such as a color tape for distinguishing existing product packaging bags from other appropriate packaging bags to the vicinity of the film sheet by manual labor There was also a problem.

  Further, in the prior art disclosed in Patent Document 2 in which stretched base film layers are fused and joined in the form of a palm, when non-melting members such as aluminum foil and paper are laminated on the laminated film, fusing is not necessary. In addition to this, there is a problem that it becomes difficult to perform fusion bonding as expected.

  The present invention has an object to solve the above-mentioned problems of the prior art, and the object of the present invention is to change the thickness of the laminated films regardless of the configuration of the laminated films. It is always possible to connect firmly and reliably as expected without the occurrence of etc., and there is no need for sticking of color tape etc. It is an object of the present invention to provide a laminated film connecting device that enables easy detection.

  In the laminated film connecting apparatus of the present invention, an intermediate layer provided with a required printing layer as a mark, for example, a sealant layer of any one of a strap film formed by laminating a sealant layer on both front and back sides of a stretched film layer is laminated. Under the butt posture between the rear end surface of the preceding feeding film and the leading end surface of the subsequent feeding film, the two feeding films are joined by straddling over the respective sealant layers of the feeding film. And holding the rear end portion of the preceding payout film and the front end portion of the subsequent payout film on a table that can be displaced in the extending direction of the payout films in a superposed state. Or a plurality of pressing means, and arranged in parallel with the table above the table so that it can be displaced in the extending direction of the feeding film The cutting bar is protruded and displaced with respect to both feeding films to a simple seal bar unit, over the entire width of both feeding films, for example, in the width direction of the feeding films, or between the width direction and the extending direction of the feeding films. Cutter blades that are driven obliquely are provided, and this also applies over the entire width of both feeding films, for example, in the width direction of the feeding films or in the intermediate direction between the width direction and the extending direction of the feeding films. Forward / backward drive means for reciprocally displacing the table having the heater wire extending obliquely in the extending direction of the feeding film between the cutting position allowing the cutter blade to enter and the operating position of the heater wire. The tip of the strap film pulled out from the strap film winding roll is disposed on the seal bar unit, The strap film is fed out on the heater wire of the table that is driven by running along the seal bar unit by being attached, stuck, clamped, etc. A strap film disposing jig is provided over the entire width of the film in the width direction of the film or in an oblique direction, and in the width direction of the feeding film or in the oblique direction over the entire width of both feeding films. A seal bar unit including an extended seal bar is arranged in the extending direction of the feed film between the operation position of the cutter blade and the strap film placement jig and the position where the seal bar is directly above the heater wire. A reciprocating drive means is provided to displace, and the seal bar is moved downward with respect to the heater wire in the seal bar unit. Thus, an elevating drive means for pressing the end portions of both feeding films together with the strap film against the heater wire is provided.

  Here, preferably, negative pressure adsorbing means for the preceding feeding film and the following feeding film is provided at each position separated from the table in the extending direction of the feeding film, and preferably, the end of the table is provided on the table. A push-up bar that is displaced together with the table while pushing up the feeding film whose portion has been cut is provided.

  Each of the cutter blade and the strap film placement jig is preferably attached to a common base block. In this case, a cutter cylinder for projecting and reversing the cutter blade on the base block, and a strap It is preferable to provide a jig cylinder for projecting and retreating the film disposing jig between the operating position and the non-operating position.

  The strap film disposing jig is preferably provided with a clamper that clamps the leading end portion of the strap film drawn out from the winding roll, and the action starting end of the strap film disposing jig is outside the feeding film in the width direction. It is preferable to be located at.

  By the way, in such a coupling device, a guide member for guiding insertion of the strap film into the lower surface side of the feeding film is provided on the distal end side in the working direction of the strap film disposing jig, The cutter blade at the working position is configured with a pair of presser plates that are arranged at intervals in the extending direction of the feeding film and are operated independently of each other. It is preferable to correspond to a portion of the table that allows the cutter blade to be inserted, and the elevating drive means of the seal bar is a rubber tube cylinder having a peripheral surface fixed or fixed to the seal bar.

  In the coupling device according to the present invention, first, the rear end portion of the preceding feeding film and the leading end portion of the following feeding film are overlapped, and the pressing device is positioned and held on the table while projecting to the working position. The displaced cutter blade is driven and driven in the forward movement direction over the entire width of the feeding film, for example, and the cut portion cut by the cutter blade is removed so that the rear end surface of the preceding feeding film and the following feeding film are removed. This brings about an exact butting condition with the front end surface of the. Then, the table provided with the heater wire is displaced to the working position of the heater wire by the action of the advancing / retreating driving means, and in this state of the table, the leading end portion of the strap film drawn out from the strap film winding roll is clamped. For example, the strap film placement jig held by sticking or the like, for example, in a downward projecting posture to be the working position, is moved and displaced, for example, in the backward direction over the entire width of the feeding film. Is laid on the heater wire over the entire width of the feeding film on the lower surface side of both feeding films. Thereafter, the seal bar unit is displaced by the reciprocating drive means until the seal bar provided therein is positioned immediately above the heater wire, where the seal bar is moved downwardly based on the action of the elevating drive means, and both feeding films With the strap film pressed against the heater wire together with the strap film, the heater wire is energized in such a state, with the sealant layer on one side of the strap film straddling the respective end portions of both feeding films, By fusing to the sealant layer of those films, an intermediate layer that can be a stretched film provided with a printing layer in a butting posture between the rear end surface of the preceding feeding film and the front end surface of the following feeding film With the provided strap film, the feeding films can be connected sufficiently firmly and liquid-tightly.

  In addition, according to this, regardless of the laminated structure of the feeding films, both feeding films are securely connected as expected without occurrence of wrinkles and dimensional changes, and the sealant on the other side of the strap film is connected. The layer can be made to function in the same manner as the sealant layer of the payout film during filling and packaging of a liquid material or the like. Moreover, the printing layer provided in the intermediate | middle layer can be functioned as an identification member which makes the presence of a connection part stand out, without sticking, such as a color tape.

  In such a coupling device, when each negative pressure adsorbing means for the preceding feeding film and the following feeding film is provided at each position across the table in the extending direction of the feeding film, both feeding films In combination with the action of the pressing means for holding the film on the table, the positioning and holding of each feeding film can be made more reliable.

  In addition, when the table is provided with a push-up bar that is displaced along with the table while pushing up the feeding film whose end portion has been cut off, the table is moved to the working position of the heater wire provided on the table under the non-operation of the pressing means. Prior to displacing the table, the push-up bar is protruded to lift the feeding film, and the table is displaced in this state to prevent co-deformation of the feeding film by the table and the cut end of the feeding film. It is possible to effectively eliminate the risk of entrainment.

  Here, when each of the cutter blade and the strap film placement jig is directly attached to one common base block and attached to the seal bar unit via this base block, they are independent of each other. Compared to the case where each of the functioning cutter blade and the strap film placement jig is separately mounted on the seal bar unit, the structure of the apparatus is simplified, and each of the cutter blade and the strap film placement jig is provided. The operation control can be facilitated.

  In this case, each of the cutter cylinder that controls the protrusion and the backward displacement of the cutter blade and the jig cylinder that controls the protrusion and the backward displacement of the strap film disposing jig are provided in a common base block. Thereby, the mutually independent operation | movement of a cutter blade and a strap film arrangement | positioning jig | tool can be performed easily and reliably.

  By the way, when a clamper that clamps the leading end of the pulled-out strap film is provided in the strap film placement jig, it has a simple structure compared to when the strap film is sucked into the jig under negative pressure. Thus, the strap film can be more reliably held, and there is an advantage that auxiliary materials such as an adhesive, a pressure-sensitive adhesive, and a pressure-sensitive adhesive tape can be made unnecessary as compared with the case where the strap film is adhered.

  Here, when the action start end of the strap film placement jig is positioned on the outer side in the width direction of the feeding film, the strap film winding roll is in a downward projecting state as the action posture of the placement jig. The strap film withdrawn from the leading end of the strap film is held on the strap film placement jig on the outside in the width direction of the feed film, and then the placement jig is placed on the bottom surface side of both feed films. By moving and moving in the direction, the drawn strap film can be laid easily, quickly and reliably on the heater wire provided on the table.

  A triangular pyramid that guides the insertion of the strap film into the lower surface side of the two feeding films in the butted state at the leading end side in the working direction of the strap film disposing jig, that is, the leading end side in the traveling direction described above. When the guide member is provided in the shape, the laying of the strap film on the lower surface side of both feeding films can be further ensured.

  When the pressing means for holding both the feeding films on the table is constituted by a pair of presser plates that are operated independently of each other at an interval in the extending direction of the feeding film with respect to the cutter blade at the working position. Each of the presser plates can be set to the working position and the non-working position at a required timing, and removal of unnecessary portions of the feeding film cut by the action of the cutter blade can be performed by aligning both feeding films, that is, It can be performed smoothly without disturbing the butted state of the end faces after cutting.

Here, when the push-up bar provided on the table is made to correspond to the part of the table that allows the insertion of the cutter blade, both the table and the push-up bar have a simple structure, and the push-up bar is always in the proper position. Can be made to work.
In other words, the structure can be simplified as compared with the case where the storage space for the push-up bar is provided on the table and the push bar itself is provided with a slit or the like that allows the cutter blade to be inserted.

  Furthermore, when the lifting / lowering drive means of the seal bar with respect to the heater wire of the table is a rubber tube cylinder fixed or fixed to the seal bar, the seal bar should be sufficiently even over the entire length under a simple structure. It can be displaced up and down.

  FIG. 1 is a schematic perspective view showing an embodiment of the present invention, in which 1 is a laminated film including a sealant layer, for example, a pre-feeding film for packaging, and 2 is a similar follower. Each of the feeding films 1 and 2 has a sealant layer on the lower surface side thereof.

  In the figure, reference numeral 3 denotes a strap film drawn out from a winding roll, and this strap film 3 is provided with a printing layer, for example, a sealant layer laminated on both front and back sides of an intermediate layer made of a uniaxial or biaxially stretched film. The structure is as follows.

  Reference numeral 4 denotes a table which is displaced in the extending direction of the feeding films 1 and 2 by an advancing / retreating drive means which will be described later. Reference numeral 5 denotes an upper side of the table 4 which is arranged in parallel with the table 4, which will be described later. The seal bar units displaced in the extending direction of the feed films 1 and 2 under the action of the reciprocating drive means are shown, respectively, and the table 4 and the seal bar unit 5 are both longer than the width dimensions of the feed films 1 and 2. Have a length.

  Further, in the figure, 6 is a cutter blade for cutting the overlapping portions of the feeding films 1 and 2, and 7 is a feeding film 1, 2 that holds the leading end of the strap film 3 drawn from the winding roll. The strap film placement jig laid on the lower surface side of each of the cutter blade 6 and the strap film placement jig 7 are both attached to a common base block 8 as shown in the figure. Thus, the drive is driven in the extending direction of the seal bar unit 5 beyond the width dimension of the feeding films 1 and 2.

  Therefore, when the seal bar unit 5 is disposed obliquely with respect to the extending direction of the feeding films 1 and 2, the reciprocating displacement of the cutter blade 6 and the strap film disposing jig 7 is also inclined in the same manner. Direction.

The reciprocating displacement of the cutter blade 6 and the strap film disposing jig 7 here winds a loop material 10 such as an endless rope around a pair of pulleys 9 provided in the seal bar unit 5, and the loop material 10 The base block 8 fixed to the base plate 8 is caused to be moved and displaced together with the loop material 10 on the basis of rotating one of the pulleys 9 by the operation of a motor 11 capable of forward and reverse rotation. It is also possible to make the base block 8 run directly by using a rodless cylinder or the like.
In this case, the travel displacement of the base block 8 is preferably guided by a guide rail 12 provided on the seal bar unit 5 side as shown in the figure.

  Here, with respect to each of the table 4 and the seal bar unit 5, as shown in the longitudinal sectional views in FIG. 2 and FIG. 3, respectively, the table 4 is inserted into the cutter blade 6 with the grooves provided therein. 2 between the advance position shown in FIG. 2 and the retracted position shown in FIG. 3 where the heater wire 13 which is disposed on the table 4 and extends beyond the entire width of the feeding films 1 and 2 acts. A cylinder 14 is provided as an example of an advancing / retreating drive unit that reciprocates in the extending direction of the feeding films 1 and 2. Further, the seal bar unit 5 is disposed at the retracted position as shown in FIG. 2 where the cutter blade 6 and the strap film disposing jig 7 provided indirectly on the seal bar unit 5 are disposed, and the seal bar unit 5. As shown in FIG. 3, the seal bar 15 that cooperates with the heater wire 13 moves forward and backward in the extending direction of the feed films 1 and 2 between the advance position that is directly above the heater wire 13. A cylinder 16 is provided as an example of driving means.

  In addition, here, in a state where the rear end portion of the preceding feeding film 1 and the leading end portion of the following feeding film 2 are overlapped on the table 4 as indicated by phantom lines in the drawing, those feeding films 1 and 2 are The pressing means 17 that integrally presses and holds on the table 4, as shown in FIG. 2, is disposed at an interval in the extending direction of the feeding films 1 and 2 with respect to the cutter blade 6 in the working position, A pair of presser plates 17a and 17b that are displaced up and down independently of each other by a cylinder or the like (not shown) are provided.

In addition, a push-up bar 18 is disposed on the table 4 so as to correspond to a groove formed on the table 4 and allowing the cutter blade 6 to enter, and the push-up bar 18 is disposed above the table surface. A cylinder 19 is provided that is displaced up and down between an advancing position that protrudes into the table and a retracted position that is completely immersed in the table groove.
The push-up bar 18 protrudes upward from the table surface before the table 4 is displaced to the working position of the heater wire 13 after the cutter blade 6 is actuated. By the way, in particular, the trailing payout film 2 is lifted and the table 4 is displaced in this state to prevent the trailing payout film 2 from being brought together by the table 4 and the cutting end portion of the following payout film 2 from being caught. It works as much as you can.

  On the other hand, in the seal bar unit 5, the seal bar 15 disposed therein is displaced downward with respect to the heater wire 13 on the table 4, and both the feeding films 1 and 2 are laid on the heater wire 13. An elevating drive means for pressing the heater wire 13 through the strap film 3 and returning the seal bar 15 to the raised position after the fusion bonding of the feeding films 1 and 2 and the strap film 3 is completed. For example, a rubber tube cylinder 20 fixed or fixed to the seal bar 15 is provided.

  In the apparatus as described above, more preferably, the negative pressure adsorbing means for the preceding feeding film 1 and the following feeding film 2 are respectively disposed at positions in the extending direction of the feeding films 1 and 2 across the table 4. 21a and 21b are provided, and by these, the respective films 1 and 2 are sucked and held, so that the positioning and holding of both the feeding films 1 and 2 in a predetermined position can be further combined with the action of the pressing means 17. Make sure.

  By the way, in order to bring about the projecting displacement to the working position and the backward displacement to the non-working position of each of the cutter blade 6 and the strap film disposing jig 7, for example, as shown in an enlarged front view in FIG. The base block 8 is preferably provided with the cutter cylinder 22 and the jig cylinder 23 for operating the both 6 and 7 independently of each other, and according to this, the cutter blade 6 And the independent operation | movement of the strap film arrangement | positioning jig | tool 7 can be performed easily and reliably.

  Further, the strap film disposing jig 7 is provided with a clamper 24 for holding the tip of the strap film 3 drawn out from the winding roll on the surface of the flat jig, and the strap film disposing jig 7. It is preferable to provide a guide member 25 for guiding insertion of the strap film 3 into the lower surface side of the feeding films 1 and 2, for example, a guide member having a triangular pyramid shape, etc. It is preferable that the operation start end of the film disposing jig 7 is positioned on the outer side in the width direction of the feeding films 1 and 2 in order to facilitate the insertion of the strap film 3 into the lower surface side of the feeding films 1 and 2.

The operation of the apparatus configured as described above will be described below.
When connecting the trailing edge of the preceding feeding film 1 and the leading edge of the following feeding film 2, first, as shown in FIG. The top end portion of the film 2 is placed over the required amount, and the pair of presser plates 17a and 17b of the pressing means 17 are both displaced downward, and both end portions are placed on the table 4 with the plates 17a and 17b. In addition to pressing and holding, each negative pressure adsorbing means 21a and 21b is operated to adsorb both feeding films 1 and 2 so that both films 1 and 2 can be positioned and held as expected. Make sure.

Next, as shown in FIG. 5, the cutter cylinder 22 provided on the base block 8 is operated to cause the cutter blade 6 to project and displace with respect to both the films 1 and 2, and in this state, the pulley 9 is driven to rotate. Then, the cutter blade 6 and the base block 8 are run in the forward direction over almost the entire length of the seal bar unit 5 to cut the overlapping portion of the two films 1 and 2, and as a result, the preceding feeding film 1 is cut. The abutting posture as shown in FIG. 3 is brought about between the rear end surface and the cutting front end surface of the subsequent feeding film 2.
In this case, the unnecessary portion cut by the cutter blade 6 can be removed by, for example, negative pressure suction or the like.

  After the cutter blade 6 is moved in the forward movement direction together with the base block 8 and the cutting over the entire width of the films 1 and 2 by the cutter blade 6 is completed, the cutter blade 6 is brought into the inoperative position by the cutter cylinder 22. On the other hand, the strap film disposing jig 7 is projected and displaced to the working position by the jig cylinder 23, and the leading end portion of the strap film 3 is placed on the clamper 24 at the outer side in the width direction of the feeding films 1 and 2. It is clamped on the arrangement jig 7 by the action.

Unnecessary portions of the films 1 and 2 cut by the cutter blade 6 are removed with the presser plates 17a and 17b opened, and the table 4 is heated by a cylinder 14 as an example of a forward / backward drive means. 13, the disposing jig 7 holding the tip of the strap film 3 in this way is displaced in the acting direction based on the travel drive of the base block 8 in the backward movement direction, Along with this traveling displacement, the strap film 3 held between the films 1 and 2 is surely inserted into the lower side of the films 1 and 2 while the guide member 25 pushes the end portions of the films 1 and 2 somewhat upward. Thus, the strap film 3 is laid on the heater wire 13 as expected.
In addition, before the table 4 is displaced to the working position of the heater wire 13 by the operation of the cylinder 14, the push-up bar 18 is moved up and displaced to its advanced position by the cylinder 19 as described above.
On the other hand, the push-up bar 18 is returned to its retracted position after the displacement of the table 4 is completed.

After the strap film 3 is laid on the lower surface side of the films 1 and 2 over almost the entire length of the heater wire 13 by the strap film placement jig 7, the clamper 24 is opened and the placement jig 7 is attached to the jig. The strap film 3 is placed on the heater wire 13 by moving backward to the inoperative position by the cylinder 23 for use.
Therefore, the seal bar unit 5 is advanced and displaced by the cylinder 16 to bring the seal bar 15 to a position directly above the heater wire 13 as shown in FIG.

  Thereafter, the rubber tube cylinder 20 accommodated in the seal bar unit 5 is expanded and deformed as shown in FIG. 7 by, for example, filling the inside thereof with a pressurized gas, and thereby fixed to the rubber tube cylinder 20. Alternatively, the fixed seal bar 15 is displaced downward, and the sealant layer on the lower surface side of both the feeding films 1 and 2 is pressed together with the strap film 3 to the heater wire 13 sufficiently evenly over the entire length thereof. The heater wire 13 is heated so that one sealant layer of the strap film 3 is fusion bonded to both of the sealant layers in a state of straddling both the feeding films 1 and 2.

  After completing one connecting operation in this way and integrating the preceding feeding film 1 and the following feeding film 2, the energization to the heater wire 13 is stopped and the seal bar 15 is moved to the raised position. Returning, the seal bar unit itself is moved backward, and the table 4 is brought to the advanced position as shown in FIG. 2 and both the feeding films 1 and 2 are released from the negative pressure adsorption. Wait for the start of concatenation work.

  Any of the strap films 3 formed by laminating the sealant layer at the rear end portion of the preceding feeding film 1 and the sealant layer at the leading end portion of the following feeding film 2 on both front and back surfaces of the intermediate layer provided with the printing layer. When interconnecting as described above by fusion bonding of the sealant layers, as long as both the feed films 1 and 2 have a sealant layer, regardless of the laminated configuration of the feed films 1 and 2, The feeding films 1 and 2 can be connected to each other without causing wrinkles or dimensional changes, and always firmly and securely as expected, and can be attached with an identification member such as a color tape. The presence of the connecting portion can be reliably detected with the printed layer of the strap film 3 without wearing.

  The connecting device for laminated films of the present invention can firmly join the films regardless of the thickness and configuration of the laminated films, so there is no need to select an item to be packaged, and a large capacity that was impossible with the prior art It can also be used for making bags such as large bags and hot packs, so it has great industrial applicability.

It is an approximate line perspective view showing an embodiment of this invention. It is a longitudinal cross-sectional view of FIG. It is a longitudinal cross-sectional view which shows the displacement state of a table and a seal bar unit. It is an enlarged front view which shows a cutter blade and a strap film arrangement | positioning jig | tool. It is a longitudinal cross-sectional view which shows the action state of a cutter blade. It is a longitudinal cross-sectional view which shows the action state of a strap film arrangement | positioning jig | tool. It is a longitudinal cross-sectional view which shows the action state of a seal bar.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lead advance film 2 Subsequent feed film 3 Strap film 4 Table 5 Seal bar unit 6 Cutter blade 7 Strap film arrangement jig 8 Base block 9 Pulley 10 Loop material 11 Motor 12 Guide rail 13 Heater wires 14, 16, 19 Cylinder 15 Seal bar 17 Pressing means 17a, 17b Presser plate 18 Lifting bar 20 Rubber tube cylinders 21a, 21b Negative pressure adsorbing means 22 Cutter cylinder 23 Jig cylinder 24 Clamper 25 Guide member

Claims (11)

Any of the sealant layers of the strap film formed by laminating the sealant layers on both the front and back sides of the intermediate layer provided with the printing layer is formed by a laminated structure between the rear end surface of the preceding feeding film and the front end surface of the subsequent feeding film. A laminating film coupling device that couples both feeding films by fusing across the respective sealant layers of these feeding films under a butting posture,
While providing a pressing means for holding the rear end portion of the preceding payout film and the front end portion of the subsequent payout film on a table that is displaceable in the extending direction of those payout films,
On the upper side of the table, the blade is projected and displaced with respect to both feeding films on a seal bar unit that is arranged in parallel with the table and can be displaced in the extending direction of the feeding films, and runs across the entire width of both feeding films. Provide a cutter blade to be driven,
Advancing and retreating the table including the heater wire extending over the entire width of both feeding films to reciprocate in the extending direction of the feeding film between a cutting position allowing the cutter blade to enter and an operating position of the heater wire. Arranging the driving means;
The seal bar unit holds the leading end of the strap film pulled out from the strap film winding roll and is driven to run along the seal bar unit. On the heater wire of the table to be provided, a strap film placement jig for laying the strap film over the entire width of the feeding film is provided,
A seal bar unit having a seal bar extending over the entire width of both feed films is fed between the working position of the cutter blade and the strap film placement jig and the position where the seal bar is directly above the heater wire. While arranging a reciprocating drive means for displacing in the extending direction of the film,
An apparatus for connecting laminated films, wherein the seal bar unit is provided with elevating drive means for lowering the seal bar with respect to the heater wire and pressing the end portions of both feeding films against the heater wire together with the strap film.   2. The laminated film connecting device according to claim 1, wherein negative pressure adsorbing means for the preceding feeding film and the following feeding film are provided at respective positions in the extending direction of the feeding film with the table being separated.   The apparatus for connecting laminated films according to claim 1 or 2, wherein the table is provided with a push-up bar that is displaced together with the table while pushing up the feeding film whose end portion is cut.   The laminated film coupling device according to any one of claims 1 to 3, wherein each of the cutter blade and the strap film placement jig is attached to a common base block.   The laminated film connecting device according to claim 4, wherein the base block is provided with a cutter cylinder for projecting and retracting the cutter blade, and a jig cylinder for projecting and retracting the strap film mounting jig. .   The laminated film connecting device according to any one of claims 1 to 5, wherein a clamper that clamps the leading end portion of the strap film is provided on the strap film arranging jig.   The device for connecting laminated films according to any one of claims 1 to 6, wherein an operation start end of the strap film disposing jig is positioned on the outer side in the width direction of the feeding film.   The connection of laminated films according to any one of claims 1 to 7, wherein a guide member for guiding insertion of the strap film into the lower surface side of the feeding film is provided on the front end side in the action direction of the strap film placement jig. apparatus.   The said pressing means is comprised with a pair of presser plates which are arrange | positioned at intervals in the extension direction of a feeding film with respect to the cutter blade of an action position, and operate | move mutually independently. The connection apparatus of the laminated | multilayer film in any one of.   The laminated film connecting device according to any one of claims 3 to 9, wherein a push-up bar provided on the table is positioned corresponding to a portion of the table that allows insertion of the cutter blade.   The apparatus for connecting laminated films according to any one of claims 1 to 10, wherein the elevating drive means for the seal bar is a rubber tube cylinder fixed or fixed to the seal bar.

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