JPH0818614B2 - Packaging film sheet joining device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the technical field of film feeding when filling a product in a packaging bag, such as a liquid product or a snack made of a soft packaging film sheet, which is sold in a packaging state. Suitable for a packaging device for packaging easy-to-use liquids, and of two film rolls wound with a film sheet as a packaging material, the end of use of the film sheet fed from the first-used sheet roll and the rear end The present invention relates to a packaging film sheet splicing device in which a film sheet fed from a sheet roll to be used is superposed with a use start end thereof and a connecting portion is integrally connected with an adhesive tape to be continuous.

[0002]

2. Description of the Related Art As is well known, as social life becomes more prosperous and citizen's life becomes more prosperous, various products are being traded in a large variety and in a large amount in the secondary market. In order to ensure smooth distribution of various types of products, a mode has been used in which products are handled in a state in which they are calculated in a predetermined weight and the quantity is calculated and packaged in advance. In particular, in the case of products such as foods (including food materials), transactions in a packaged form such as bagging at a predetermined weight are not only convenient in handling on the supply side, but also from the viewpoint of quality assurance, Also on the consumer side,
It is widely used because it is easy to use and has significant health and hygiene benefits.

On the supply side in the secondary market, a pre-made bag made of a predetermined size, for example, a film made by laminating a sheet made of paper or a synthetic resin, or the like, is supplied, and a liquid material or a predetermined weight is supplied to the bag. It is also possible to pack products such as snacks into bags, but directly feed the film sheet to the packaging machine in order to reduce costs in the production process and achieve smooth and efficient packaging work. The mode of automatic packaging is widely used, in which the product is made into a bag and the product is filled into a bag. In the case of direct packaging with a film sheet, considering properties such as moisture resistance, gas permeability of oxygen, etc., light permeability of ultraviolet rays, etc., it is laminated according to the product to be filled, and further content is displayed. , Film sheets processed with photographs, advertisements, and other color printing are used.

The structure and operation of a typical packaging film sheet joining device used in this type of conventional packaging device will be described below with reference to FIGS. 15 to 22.
This wrapping film sheet joining device is disclosed in Japanese Patent Application No. Hei 2-321.
No. 285 and the drawings,
It is suitable for a packaging device for packaging snacks whose quality is unlikely to change.

FIG. 15 is a perspective view of a conventional film sheet, and FIG. 16 is a conventional example in which a post-use film sheet is adhered to a post-use film sheet by attaching an adhesive tape to a post-use film sheet. 17 is a schematic perspective view of the entire apparatus, FIG. 17 is a perspective view of the film sheet holder shown in FIG. 16, FIG. 18 is a sectional view of the presser body shown in FIG. 16, and FIG.
16 is a side view of FIG. 16, FIG. 20 is a perspective view of the crimp body shown in FIG. 16, FIG. 21 is a side view of the film sheet holding body in an open state with respect to the crimp body shown in FIG. 20, and FIG. 22 is shown in FIG. It is a closed state side view of the film sheet holder with respect to a pressure bonding body.

As shown in FIG. 19 and FIG. 22, this packaging film sheet splicing device has a rear end from a post-use sheet roll 1'X with respect to a use end 13X of a pre-use film sheet 11X from a pre-use sheet roll 1X. The starting ends 14X of the used film sheets 11'X are superposed, and the film sheets 11X and 11'X are adhesively connected by adhering only the adhesive tape 21X to the superposed portion.

As shown in FIG. 15, the synthetic resin laminate type film sheets 11X and 11'X are provided on the front side thereof with advertisements and explanations of filled products at a predetermined design pitch.
Alternatively, a predetermined print pattern 15X such as a pattern is formed, and a registration mark 12X is also provided by printing on the edge portion between them. Previously used film sheet 11
Cut marks 16X, 16 'for cutting the use end 13X of X and the use start end 14X of the post-use film sheet 11'X
Xs are also printed side by side in pairs in the feeding direction at a predetermined interval, and are printed for each bag of film sheets 11X and 11'X.

As shown in FIGS. 16 to 22, an adhesive plate 22X having a rectangular shape in a front view is fixedly installed on a side surface of a frame of a packaging device (not shown), and the upper pin 22 'is attached to the adhesive plate 22X.
The receiving plate 23X having substantially the same size in the front view is pivotally supported via the X in a freely openable and closable state, and the pre-use film sheet 11X and the post-use film sheet 11'X are attached and connected only by the adhesive tape 21X. Adhesive plate 22X and receiving plate 23X
Have long grooves 24X, 24X ... Which are laterally opposed to each other and are provided with a predetermined number of recesses. Adhesive rollers 25X, 25X. The film sheet 1 is used as a pre-use film and a post-use film sheet between the adhesive plate 22X and the receiving plate 23X.
It is possible to feed upward with the 1X and 11'X sandwiched.

A rubber plate or the like is adhered to the lower side of the adhesive plate 22X at a predetermined distance, and on the surface thereof, the adhesion position indicating marks 18X, of the terminal end 13X of the previously used film sheet 11X, are adhered.
18'X is provided by connecting a straight line between them. further,
At the bottom of the line, a predetermined photoelectric detection device 35X attached to the rear part of the film sheet 11X passes a position where the terminal end of the previously used film sheet 11X passes, and a light beam enters and penetrates a slit hole 18''X for detecting this. 22 "X
Is provided. A film sheet holder 27X for the post-use film sheet 11'X faces the pressure-bonding body 22 "X and a lower end of the film sheet holder 27X is attached to a frame (not shown) by an arm 28X.
Is pivoted through. The arm 28X is provided with a tension spring 29X, and the film sheet holder 27
The upper part of X is temporarily opposed to the crimping body 22 ″ X with a slight distance so that it can be in close contact with the pressure bonding body 22 ″ X. (Not shown) is actuated to bring them into close contact with each other and press them.

Crimping body 2 of film sheet holder 27X
Holes 30X, 30X of a vacuum device as a temporary fixing device are provided in a predetermined matrix-shaped row and column arrangement on the surface facing 2''X, and a vacuum source is provided via a vacuum pipe 31X and a hose 31'X. It is connected to 32X and the negative pressure can be freely adjusted by the adjusting valve 32'X. Film sheet holder 27X crimp body 22 "X
On the inner side of the surface facing the
Instruction marks 19'X, 19 'for the starting point 14X
X is provided by a marking or the like together with a straight line connecting the two.

The pre-use film sheet 11X from the pre-use sheet roll 1X in the initial set is driven by the drive roller 2'X,
The guide roller 2 is fed by the presser roller 2 ″ X.
The adhesive plate 22X and the receiving plate 23 which pass through X and pass between the film sheet holder 27X and the pressure-bonding body 22 "X which are closed with a slight gap left therebetween and also face each other with a slight gap left therebetween.
X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, and X, and is fed to the packaging device via dancer roller 3X. When the continuous wrapping operation is performed and the product dropped and filled through the hopper is formed into a predetermined shape, the pre-use film sheet 11X of the initial mounting set is consumed and the use end 13X thereof is fed out. Post-use sheet roll 1'for replenishment
X is set on the arm.

Next, the upper portion of the film sheet holder 27X is pulled outward, and the arm 28X opens a predetermined angle against the spring 29X, so that the arm 28X engages with the hook notch (not shown) and holds the film sheet. Body 27
The first standby posture state in which X is opened at a predetermined angle with respect to the crimping body 22 ″ X is maintained. Therefore, the post-use sheet roll 1 '
The use start end 14X of the post-use film sheet 11'X wound around X is pulled out and pulled up through the space between the arms 28X and 28X, and before that, the negative pressure of the vacuum hole 30X is adjusted by the adjustment valve 32'X in advance. After pulling up, the use start end 14X of the used film sheet 11'X is pulled up and temporarily moved by a negative pressure so as to follow the line between the use start end indication marks 19'X and 19'X of the film sheet holder 27X. Stop. After being temporarily fixed, the portion of the use start end 14X of the use film sheet 11'X is peeled off, and the adhesive tape 21X is attached to the portions of the use start end instruction marks 19'X and 19'X so that the adhesive surface is above. By the suction force of the vacuum holes 30X, 30X, the adhesive tape 21
X is cut into a film width dimension, then temporarily fixed, and the use start end 14X portion of the post-use film sheet 11'X is pressed against this, so that the lower half of the adhesive tape 21X is used start end 14X of the post-use film sheet 11'X. Is closely attached to the edge of the.

Therefore, the arm 28X of the film sheet holder 27X is detached from a hook (not shown), and the film sheet holder 27X is pulled toward the pressure-bonding body 22 "X via the tension spring 29X, and the film sheet holder 27X is pulled. Is close to the pressure-bonding body 22 "X and temporarily leaves a slight gap, and the pre-use film sheet 11X is attached to the end-of-use instruction marks 18'X, 18'X of the pressure-bonding body 22" X.
When the use end 13X of the pressure contact body 2 reaches its predetermined position, the crimp body 2
After passing through the slit hole provided in 2 ″ X, the photoelectric detection device 35X detects it and outputs an electric signal to secondarily stop the film feed drive roller 2′X momentarily. At the same time, the film sheet holder 27X is secondarily operated to press and bond the adhesive portion of the starting point 14X of the post-use film sheet 11'X to the post-use film sheet 11 '.
The use start end 14X of X is superposed on the adhesive portion of the use end 13X of the previous use film sheet 11X, and the adhesive tape 21
The upper half of X is adhered to the previously used film sheet 11X,
Pre-use film sheet 11X and post-use film sheet 1
1'X is continuously and integrally connected.

When this operation is completed, the packaging work is restarted,
Pre-use film sheet 11X and post-use film sheet 1
1'X is continuously fed integrally to a bag-making guide (not shown), and the above-described operation is repeated for connection to the film sheet from the next film sheet roll. In addition, in the specification and drawings of Japanese Patent Application No. 54-083260, similar to the above-mentioned packaging film sheet joining device,
A connection and supply device for packaging material is disclosed.

[0015]

The conventional packaging film sheet splicing device is set for a packaging device for a packaged product such as snacks whose quality is unlikely to change, and has a large size as described below. There is a problem.

(1) Although the tension of the film sheet in the normal condition is kept constant to some extent by the dancer roller,
When the film sheet is automatically connected, the film sheet is pulled from the packaging device side, and it is not possible to absorb the sudden change in tension, that is, the shock, and the film sheet is provided with a cut mark and a registration mark. Detecting the registration mark and the registration mark require a complicated electric circuit to convey the film sheet at a constant speed or stop the driving roller, which is practically impossible for automatic packaging work and is at an idea stage. It is a thing.

(2) Since the pre-use film sheet and the post-use film sheet are connected to each other only by the adhesive tape, the connecting portion of the film sheet is used at a portion such as a bag-making guide where the film conveying direction is greatly changed or a vertical seal portion. A large amount of force is applied, the product is easily separated from the connection portion, and the packaging work such as a liquid material is scattered around the machine, so that the packaging work is interrupted for a long time. This is because if the input device such as a device for kneading at a constant ratio such as konjac manufacturing or a sterilizer is connected to the previous stage of the packaging device, it will lead to lack of stabilization of quality and discard a large amount of packages. Therefore, the interruption of the packaging work is a serious problem.

(3) Although the slack of the film sheet is absorbed to some extent by the dancer roller, it causes peeling from the connection portion, and also causes misalignment or misalignment of patterns or marks printed on the film sheet. This may cause a production loss due to the bag-making cut position deviation, such as interruption of the packaging operation and readjustment.

(4) Once the film connecting portion is peeled off, the pre-use film is removed, the post-use film is re-attached, and in order to readjust the mark position, the preceding stage feeding device is stopped for a long time to stabilize the product. In addition, the package and the input pipe are exposed to the outside air, which causes secondary contamination of the package, and the quality assurance and health and hygiene advantages of the film packaging are lost.

The present invention has been made in view of the above problems of the prior art. The strength of the connection portion of the film sheet is large, interruption of the packaging work does not occur, and product loss due to mark deviation or the like occurs. It is an object of the present invention to provide a packaging film sheet splicing device having a small number.

[0021]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a use end of a film sheet fed from a pre-use sheet roll and a use start end of a film sheet fed from a post-use sheet roll. In a packaging film sheet splicing device in which the overlapping portions are continuously connected by an adhesive tape, and the film pitch mark is fed from a pre-use sheet roll or a post-use sheet roll. A pair of openable / closable film splicing opening / closing members provided on the way of feeding the film sheet to the packaging apparatus, and a temporary film sheet provided on each of the pair of film splicing opening / closing members. A pair of adsorbents provided with vacuum means as a stopping device, and a portion of at least one adsorbent facing the other adsorbent Between a heat-welding unit provided and a heat-welding unit including a heat-generating body for welding and at least one adsorbent that moves and presses the other adsorbent to the other adsorbent, and the heat-welding unit and the sheet roll. A cutting means provided for cutting the film sheet fed from the pre-used film sheet roll, and provided between the heat welding unit and the packaging device, detects the film pitch mark of the film sheet. And a roller provided between the heat welding unit and the packaging device so as to be movable in the direction of pressing the film sheet and urged by an elastic member to bend the film sheet. Film impact absorbing means and the end of use of the film sheet provided near the roll axis of the pre-use sheet roll and the post-use sheet roll, respectively. And a control means for driving the welding driving means and driving the cutting means when the mark detecting means detects a film pitch mark after the end detecting means detects the end of the film sheet. And are provided.

Further, the roller of the film shock absorbing means is
It can be moved only when the film sheet is connected.

Further, the roller of the film shock absorbing means is a roller rotatably supported by a supporting member provided movably in a direction substantially perpendicular to the transport direction of the film sheet, or swingable at one end thereof. A swing roller that is rotatably supported by the other end of the bracket provided in the.

[0024]

In the present invention constructed as described above, first, one opening / closing member for film splicing is opened, and half of the adhesive tape is first attached to the starting end of the post-use film sheet with its adhesive surface (adhesive surface) first. The film is attached so as to face the used film sheet side, and the starting end of the post-use film sheet is temporarily fixed together with the adhesive tape to one of the adsorbents by vacuum means. After this, one film splicing opening / closing member is closed.

The packaging film sheet joining device is started together with the packaging device to perform the packaging work. As the packaging progresses, the previously used film sheet is fed to the packaging device and its consumption proceeds. When the end of use of the previously used film sheet is detected by the end detection means provided in the vicinity of the roll shaft of the previously used film sheet, the fact is input to the control means. After this, when the mark detecting means dedicated to the splicing device detects the film pitch mark of the previously used film sheet, that effect is also input to the control means, which causes the control means to generate heat and further drive welding. The cutting means is driven while driving the means. As a result, one adsorbent is pressed against the other adsorbent by the welding driving means via the pre-use film sheet, the post-use film sheet and the adhesive tape, and at this time, the pre-use film sheet and the post-use film sheet are The pre-use film sheet and the post-use film sheet are connected by an adhesive tape, and the pre-use film sheet and the post-use film sheet are also heat-welded and connected by the heat of the heating element, and then the pre-use film sheet is cut.

As described above, the film sheets are securely connected within one pitch of the film pitch marks, and when one of the adsorbents is pressed against the other adsorbent during the packaging operation, the previously used film sheet is used. Is pulled toward the packaging device side and a large tension is applied, but the roller of the film impact absorbing means moves in the direction in which the bending degree of the prior-use film sheet decreases against the elastic member, and A pulling margin can be obtained, a sudden change in the tension of the previously used film sheet, that is, a joint impact of the film sheets is relieved, and automatic packaging can be performed without tearing of the film sheet, waviness, or mark deviation.

When the pre-use film sheet is consumed, this time, the post-use sheet roll becomes the pre-use sheet roll, a new sheet roll is mounted on the roll shaft of the consumed pre-use film sheet, and this post-use sheet roll is attached. Roll. Then open the other opening / closing member for film splicing and attach half of the adhesive tape to the starting end of the post-use film sheet so that its adhesive surface (adhesive surface) faces the pre-use film sheet side. The starting end of the film sheet is temporarily fixed together with the adhesive tape to the other adsorbent by vacuum means. After this, the other film splicing opening / closing member is closed.

In the meantime, as the packaging progresses, the previously used film sheet is fed to the packaging apparatus and its consumption progresses. The film sheet is connected firmly by the adhesive tape or the heat welding as in the above. Done.

[0029]

Next, an embodiment of the present invention will be described with reference to the drawings.

First, a vertical filling and packaging apparatus applied to the packaging film sheet joining apparatus of the present invention will be described. FIG. 1 is a schematic view of a vertical filling and packaging apparatus applied to an embodiment of the packaging film sheet joining apparatus of the present invention, and FIG. 2 is a cross-sectional view of the main part of FIG.

As shown in FIGS. 1 and 2, this packaging device is for packing a filling A, which is konjac paste, which is fed by the feeding nozzle 2. Main pipe 6a
A charging nozzle 2 for charging the filling material A is inserted into the inside of the container, and a film sheet (preliminarily used film sheet described later) 5 is formed into a cylindrical shape on the outer peripheral portion which is substantially the center of the main pipe 6a. The bag making guide 3 is attached. The tubular film 1 formed into a tubular shape by the bag making guide 3 has a vertical seal portion 7 provided below the bag making guide 3.
The mating surface is heat-sealed by means of. The film sheet 5 is supplied from the packaging film joining device of the present invention described later.

A film feed roller pair 8 is provided below the main pipe 6a, each of which is composed of two disc-shaped rollers, and the cylindrical film 1 is sandwiched by four rollers.
a, 8b, and a handling roller pair 4 comprising two cylindrical rollers for handling the filler A put in the tubular film 1.
a and 4b and lateral seal portions 9a and 9b for sealing the empty filling portion of the tubular film 1 obtained by the handling roller pairs 4a and 4b are provided so as to face each other with the tubular film 1 interposed therebetween. ing. Each of the handling roller pairs 4a and 4b is movable in a direction perpendicular to the moving direction of the tubular film 1 (the left-right direction in FIG. 1) in order to move the tubular film 1 into which the filling A has been introduced downward. Is configured. A cut blade 10 for cutting the sealed empty filling portion is provided at the substantially center of one of the horizontal sealing portions 9a and 9b. Further, a guide needle 6 composed of two pins that are spread downward is attached to the lower end of the charging nozzle 2.

The tubular film 1 obtained by forming the film sheet 5 by the bag making guide 3 and the vertical seal portion 7 in the vertical filling and packaging apparatus configured as described above has the film feed roller pair 8a, 8b. By the rotation of a driving motor (not shown), the guide needle 6 opens the door and draws it downward by a predetermined amount.
The vertical seal portion 7 heat-seals the mating surface.

After that, when the filling material A is charged, the rotation of the film feed roller pair 8a, 8b is stopped as described above, and the handling roller pair 4a, 4b and the lateral seal portions 9a, 9b.
This is done when b is open. After the loading is completed, the handling roller pairs 4a and 4b move in the direction in which the tubular film 1 is sandwiched, and rotate in the arrow direction in FIG. 1 together with the film feeding roller pairs 8a and 8b. By this rotation, the tubular film 1
Is lowered downward, and the handling roller pair 4a,
An empty filling section is generated by 4b. When the tubular film 1 is pulled down by the rotation of each roller pair, the horizontal sealing portions 9a and 9b move to positions where the tubular film 1 is sandwiched, and after the horizontal sealing of the tubular film 1 is performed, the cutting blade 10 is used. The cutting operation of the film pitch mark (not shown) portion is performed, and the bag-filled product 11 in which the filling A is packed is obtained. After that, the handling roller pairs 4a and 4b and the lateral seal portions 9a and 9b are opened, and the above-described filling operation is repeated.

Next, the packaging film sheet joining device of the present invention will be described.

FIG. 3 is a schematic view of an embodiment of the packaging film sheet joining apparatus of the present invention, FIG. 4 is a schematic left side view of FIG. 3, FIG. 5 is a sectional view taken along line BB of FIG. 3, and FIG. CC sectional view of
7 is a partially enlarged view of the opening / closing member for film splicing in FIG. 3, FIG. 8 is an enlarged view of a main part of FIG. 7, FIG. 9 is a view showing a film sheet according to the present invention, and FIG. 10 is welding of the film sheet in the present invention. FIG. 11 is a view showing an inside state, FIG. 11 is a view showing a joint portion of a film sheet according to the present invention, FIG. 12 is a control block diagram of a packaging film sheet joining device of the present embodiment, and FIG. 13 is a film joining step according to the present invention. It is a flowchart of.

As shown in FIG. 3, FIG. 9 and FIG. 11, the packaging film sheet joining device of the present invention is similar to the prior art in that the pre-use film sheet 14 from the pre-use sheet roll 12 is used after the end 89 of use. This is a mode in which the use start end 88 of the post-use film sheet 17 from the use sheet roll 15 is connected by a superposition method, but the pre-use and post-use film sheets are attached to the superposition part by adhesion with an adhesive tape 78 and heat welding. This is greatly different from the conventional example in that the connection of 14 and 17 is automatically and accurately performed.

Laminate type film sheets 14 and 17 made of synthetic resin are provided on the front side thereof with a predetermined design pitch at a predetermined design pitch, or a predetermined print pattern 83 such as a description of a commercial advertisement or a filled product, or a pattern. , A phototube mark 8 as a film pitch mark on the edge portion between them.
4 is also provided by printing. This photocell mark 84 also serves as a conventional cut mark, that is, as shown in FIG.
When feeding is performed in the direction of the middle white arrow, the photo-electric cell marks 84 for cutting the use end 89 of the first-use film sheet 14 and the use start end 88 of the second-use film sheet 17 are adjacent to each other at a predetermined interval in the sending direction in right and left pairs. The pre-use and post-use film sheets 14 and 17 are printed for each bag, and laterally cut by the cutting blade 10 (see FIG. 1) accurately and smoothly on the packaging machine side as specified by the position. .

As shown in FIGS. 3 to 6, the pre-use and post-use sheet rolls 12 and 15 are set in the vertical direction on the side surface of the packaging apparatus body (frame) 49 of the packaging apparatus (not shown). ing. The brake weight 43 and the weight 44 prevent unnecessary rotation of the roll shafts 13 and 16 of the pre-use and post-use sheet rolls 12 and 15 when the packaging device is not in operation. The sheet roll 12 is pressed against the peripheral surface, and the weight 44 is used by being wound around the roll shaft 16 of the post-use sheet roll 15. The pre-use film sheet 14 of the pre-use sheet roll 12 includes a plurality of rotatable tension rollers 1
8, 19, 80, 87, 29a, a roller 35 of the present invention described later, and tension rollers 29b, 29c, 38,
39, 45, 40, 41, 42, 42a and is supplied to the packaging device (not shown) side (tension roller 80,
87 is shown in FIG. 8). Here, reference numeral 45 indicates a dancer roller provided exclusively for the packaging device, and the dancer roller 45 constantly moves up and down so that the tension applied to the film sheet 14 during the packaging operation becomes constant. After the use of the pre-use sheet roll 12, the post-use film sheet 17 of the post-use sheet roll 15 includes a plurality of rotatable tension rollers 20, 21, 28, 79, 86, 29a and a roller 35 of the present invention described later. , Tension rollers 29b, 2
9c, 38, 39, 45, 40, 41, 42, 42a and supplied to the packaging device (tension roller 79,
86 and 29 refer to FIG. 8). The tension roller 28
Is provided on a first film splicing opening / closing member 32 described later.

In the packaging device main body 49, first and second metal film opening / closing members 32, which are made of metal, are provided via brackets 47, 48 for supporting the opening / closing members, which are substantially L-shaped, respectively.
33 is supported. Each of the first and second opening / closing members 32 and 33 for film splicing is composed of a pair of plate members facing each other, and the lower ends thereof are rotated by the rotation fulcrums 26 and 27 to the opening / closing member supporting brackets 47 and 48. Each is supported as possible. The upper ends of the first and second opening / closing members 32 and 33 for film splicing are supported by the opening / closing member supporting brackets 47 and 48 by the pair of fixing pins 30 and 31, respectively. When 30 and 31 are removed, the first and second opening / closing members 32 and 33 for film splicing are rotated downward to open. 1 and 7, the state where the first and second film splicing opening / closing members 32, 33 are closed and face each other is shown by a solid line, and the first and second film splicing opening / closing members 32, 33 are shown. The state in which is open and is supported by a stopper portion (not shown) is indicated by a two-dot chain line. The printing machine 98 prints the manufacturing date and the like on the film sheets 14 and 17 when the film sheets 14 and 17 are fed to the packaging device side.

(Regarding the unit for heat welding) As shown in FIGS. 3 to 8, a plurality of suction holes 52 and 55 are arranged in the first and second film joining opening / closing members 32 and 33, respectively. Both ends of the first suction plate 53 and the second suction plate 56 are fixed. The first suction plate 53 and the second suction plate 56 are respectively provided with suction surfaces 54 and 57 that face each other when the first and second film joining opening / closing members 32 and 33 are closed. First suction plate 53
Is movable in the facing direction by the air cylinder 70 for heat welding, and also serves as a pressing plate for heat welding. Each suction hole 52, 55 is connected to a suction switching solenoid valve 50 via a separate tube (not shown), and this suction switching solenoid valve 50 is connected to a vacuum source (not shown). By switching the adsorption switching solenoid valve 50 by a control unit described later, the first adsorption plate 53 and the second adsorption plate 53
The suction operation with the suction plate 56 can be switched.
The first suction plate 53 and the second suction plate 56 are used to indicate the position of the use start end of the post-use film sheet 17,
The same use start point instruction marks (not shown) as in the conventional case are provided. In FIG. 8, the post-use film sheet 17 is used.
The use starting end 88 is vacuum sucked and temporarily fixed to the first suction plate 53. As is clear from these, the suction hole 52, the tube (not shown), the vacuum source (not shown), etc. The vacuum means is constituted by.

As shown in FIGS. 6, 7 and 8, the second
At the upper and lower ends of the suction surface 57 of the suction plate 56, the nichrome wires 71, 72 as heating elements are provided over substantially the entire width thereof.
The nichrome wires 71, 72 are provided in a range wider than the width dimension of the film sheet, and are energized at a predetermined timing by the heat-generating circuit 73 for heat welding (a high-frequency impulse is applied) to instantly Fever. The use starting end 88 of the post-use film sheet 17 is the first suction plate 53.
When the nichrome wires 71 and 72 are caused to generate heat in the state where they are temporarily fixed to the first suction plate 53, the first welding plate 53 is pressed against the second suction plate 56 (see FIG. 1).
0)), the pre-use film sheet 14 and the post-use film sheet 17 are connected by the adhesive tape 78 and the first and second heat-welding portions 90 and 91 (see (a) of FIG. 11).

(About Cutting Means) The first and second opening / closing members 32 and 33 for film splicing have a cutting blade 64,
First and second sliders 66 and 67 as cutting blade holders respectively having 65 are provided. The cutting blades 64 and 65 are arranged such that their tips are opposed to each other, and a cut receiving plate 85 fixed to the opening / closing member supporting brackets 47 and 48 is located between them. Each of the cutting blades 64 and 65 is contained in the first silicon mat 76 and the second silicon mat 77, respectively. The first and second sliders 66 and 67 integrally include slider shafts 68 and 69, and are fixed to the rods of the first and second cutting blade driving air cylinders 60 and 61, respectively. The above-mentioned first and second sliders 66 and 67 are attached to the slider shafts 68 and 69 so as to be movable in the facing direction and not to fall off,
The springs 62 and 63 are urged toward each other, that is, toward the cut receiving plate 85. For example, when the air cylinder 61 for driving the second cutting blade is activated and the second slider 67 is moved forward, the tip of the second cutting blade 65 and the second silicon mat 77 are placed on the cutting receiving plate 85 almost at the same time. Although they come into contact, the spring 63 contracts from this,
The tip of the second cutting blade 65 is the second silicon mat 77.
From the above, as a result, the previously used film sheet 14 is cut by the second cutting blade 65.

Again, as shown in FIG. 3, a film joining photoelectric tube 36 and a known packaging photoelectric tube 37 dedicated to the joining device as mark detecting means are arranged side by side between the heat welding unit and the packaging device. Has been done. The film joining phototube 36 and the packaging phototube 37 detect the phototube mark 84 (see FIG. 9) on the film sheet, but the detection signal from the packaging phototube 37 is sent to a control unit (not shown) on the packaging machine side. The input signal is used to set the driving timing of the above-mentioned lateral seal portions 9a and 9b and the cutting blade 10 (see FIG. 1), and the detection signal from the film joining photoelectric tube 36 will be described later in the packaging film sheet joining device. It is input to the control unit 75 (see FIG. 12).

(About Film Impact Absorbing Means) A film impact absorbing means 99 is provided above the heat welding unit. The opening / closing member supporting brackets 47, 48 are provided with rollers 35, and the rollers 35 are attached to a pair of supporting members 46 which are movable in a direction substantially perpendicular to the conveying direction (vertical direction) of the film sheet 14 at both ends. Is a roller rotatably supported. That is, the pair of supporting members 46 (one supporting member is not shown) move in the horizontal direction with respect to the pair of horizontally extending brackets 46a fixed to the L-shaped opening / closing member supporting brackets 47 and 48, respectively. The pair of coil springs 92 (one coil spring is not shown), which are freely guided and serve as elastic members, bias the roller 35 in the direction in which the film sheet 14 is bent, that is, in the right side in FIG. Then, the roller 35 is connected to the film sheet 1 while the film sheet is being connected.
4 is pulled toward the packaging device, a pair of coil springs 9
It moves to the left side in FIG.
(See Fig. 7). The peripheral surface of the roller 35 may be made of aluminum or rubber.

In the vicinity of the roll shafts 13 and 16 of the pre-use sheet roll 12 and the post-use sheet roll 15, first and second film end limit switches 22 and 24 as end detection means of the sheet films 14 and 17, respectively, are provided. It is provided. The first and second film end limit switches 22 and 24 are provided with rod-shaped detection pieces 23 and 25, respectively, and end of the pre-use film sheet 14 and the post-use film sheet 17 of the pre-use sheet roll 12 and the post-use sheet roll 15, respectively. When the tension rollers 18 and 20 pass, the detection pieces 23 and 25 are
The end can be detected by entering into the grooves 51 formed on the peripheral surfaces of 8 and 20, respectively, and that effect is input to the control unit 75 (see FIG. 12) described later.

As shown in FIG. 12, the control section 75 as the control means inputs the end detection signals from the first and second film end limit switches 22 and 24, and
A mark detection signal is also inputted from the film joining photoelectric tube 36. The setting unit 81 is for setting a predetermined number of bagged products to be manufactured by the packaging device, and the counter 93.
Counts the number of bagged products 11 (see FIG. 1) manufactured by the packaging device. As shown in FIGS. 3, 8 and 11A, the first film end limit switch 2
When the film joining photoelectric tube 36 as the mark detecting means detects the photoelectric tube mark 84 after 2 detects the end of the previously used sheet film 14, the control unit 75 causes the heating element circuit 73 for heat welding to connect the nichrome wires 71 and 72. A signal for generating heat is output, and further, the air cylinder 70 for heat welding is activated and the second cutting blade driving air cylinder 61 is driven. The automatic / manual changeover switch 74 automatically performs the connection process after the end of the pre-use film sheet 14 is detected, or performs the connection process before the end of the pre-use film sheet 14 is not detected when changing specifications. This is a switch that switches between manual operation and manual operation.

Next, the operation of the packaging film sheet joining device of this embodiment will be described in detail.

First, the normal automatic connection will be described.
As shown in FIG. 3, the pre-use sheet roll 12 corresponds to the post-use sheet roll in the previous packaging work, and the tip of the pre-use film sheet 14 of the pre-use sheet roll 12 has a plurality of tension rollers 18 , 19, 8
0,87,29a, 29b, 29c, 38,39,4
0, 41, 42, 42a (tension rollers 80, 87
(See FIG. 8) and is guided to a vertical filling and packaging apparatus (not shown). The post-use sheet roll 15 is set in the packaging film sheet splicing device, and the fixing pin 30 is removed to make the first film splicing opening / closing member 32 stand by at the position rotated downward as indicated by the two-dot chain line. Keep it. The post-use film roll 17 of the post-use sheet roll 15 is unwound by hand and sequentially wound around the plurality of tension rollers 20, 21, 28, and as shown in FIG. Then, together with the adhesive tape 78, the use start end 88 is aligned with the use start end instruction mark (not shown) of the first suction plate 53 and vacuum suction is performed. Then, the first film splicing opening / closing member 32 is rotated upward and held at that position by the pair of fixing pins 30.
Here, only the first suction plate 53 is in the vacuum state by the suction switching solenoid valve 50.

The vertical filling and packaging apparatus is activated, and the pre-use film sheet 14 is consumed as the filling and packaging progresses. When the consumption of the pre-use film sheet 14 progresses and the end of the pre-use film sheet 14 passes the tension roller 18, the detection piece 23 of the first film end limit switch 22 operates to use the pre-use film sheet 14. The end 89 is detected (step 94 in FIG. 13), and that effect is input to the control unit 75. After the input, when the film joining photoelectric tube 36 detects the photoelectric tube mark 84 of the previously used film sheet 14 for the first time (step 95 in FIG. 13), the control unit 75 causes the heating element circuit 73 for heat welding to apply the nichrome wire 7 to the nichrome wire 7
1, 72 is made to generate heat (step 96 in FIG. 13), and further, the air cylinder 70 for heat welding is started, and
The second cutting blade driving air cylinder 61 is driven.
As a result, as shown in FIG. 10, the first suction plate 53 moves forward, and the back surface of the pre-use film sheet 14 and the front surface of the post-use film sheet 17 are joined by the adhesive tape 78 and also by heat welding, The second cutting blade 65 advances and the previously used film sheet 14 is cut (in FIG. 13,
Step 97), the splicing or connection of the packaging film sheets is finished. At this time, the photocell 3 for film splicing
By the action of 6, the photoelectric tube mark 84 of the previously used film sheet 14 and the photoelectric tube mark 8 of the later used film sheet 17
4 are overlapped with each other, and the film connection portion is located substantially in the center of the phototube mark 84.

As described above, the connection of the packaging film sheets is surely made within the pitch of the photoelectric tube marks, and when one of the adsorbents 53 is pressed against the other adsorbent 56 during the packaging operation, that is, the film. While the sheets are being connected, the pre-use film sheet 14 is pulled toward the packaging apparatus and a large tension is applied, but the roller 35 of the film impact absorbing means 99 is used.
Moves against the elastic force of the pair of coil springs 92 in the direction in which the degree of bending of the pre-use film sheet 14 decreases (left side in FIGS. 3 and 7), thereby obtaining the pulling margin of the pre-use film sheet 14. The sudden change in the tension of the pre-use film sheet 14, that is, the joint impact of the pre-use film sheet 14 is alleviated, and the pre-use film sheet 14 is relieved.
Automatic packaging can be performed without tearing, waviness or mark deviation. Furthermore, of course, it is not necessary to stop the packaging device when connecting the film sheets.

In this embodiment, the film impact absorbing means 99
By using a roller 35 that is movable in a direction substantially perpendicular to the transport direction of the film sheet 14, the pulling margin of the film sheet 14 can be made long (for example, a plurality of pitches of photoelectric tube marks), which is extremely suitable for a high-speed packaging device. It is valid. In addition, normally, the pair of support members 46a are fixed by some fixing means, and the pair of support members 46a are
It suffices that a is movable with respect to the guide member 46 only when the film sheets are connected, that is, immediately before one suction plate is pressed by the other suction plate until after the pressing is released.

A post-use sheet roll 15, that is, a film sheet (hereinafter referred to as A film sheet) 17 of a next pre-use sheet roll (hereinafter referred to as A sheet roll) 17
While the sheet is being supplied to the packaging device, a new sheet roll (not shown) is attached to the roll shaft 13 to which the previously used sheet roll 12 that has been consumed is attached, and the new sheet roll (hereinafter, B sheet roll). Further, the pair of fixing pins 31 are removed and the second film joining opening / closing member 33 is made to stand by at the position rotated downward as shown by the two-dot chain line. The film sheet of the B sheet roll (hereinafter referred to as the B film sheet) is manually fed out and sequentially wound around the tension rollers 20, 21, and 28, and half of the adhesive tape is attached to the starting end of the use in the same manner as in FIG. Attaching and using the starting point together with the adhesive tape
Vacuum suction is performed on the suction plate 56. Then, the second film splicing opening / closing member 33 is rotated upward and held at that position by the pair of fixing pins 31. Here, only the second suction plate 56 is in the vacuum state by the suction switching solenoid valve 50.

As the consumption of A film sheet 17 progresses, A
When the end of the film sheet 17 passes the tension roller 20, the detection piece 25 of the second film end limit switch 24 operates to detect the use end of the A film sheet 17, and the fact is input to the control unit 75. It After the input, when the photoelectric tube 36 for film joining detects the photoelectric tube mark 84 of the A film sheet 17 for the first time, the control unit 75
Causes the heating element circuit 73 for heat welding to generate heat in the nichrome wires 71, 72, further activates the air cylinder 70 for heat welding, and at the same time, drives the first cutting blade driving air cylinder 60.
Drive. As a result, as shown in FIG. 10, the first suction plate 53 moves forward, the surface of the A film sheet 17 and the surface of the B film sheet are not only adhered by an adhesive tape, but also joined by heat welding, and The cutting blade 64 advances, the A film sheet 17 is cut (step 97 in FIG. 13), and the joining of the packaging films, that is, the connection is completed. Here, the connection mode is as shown in FIG. 11B, and the front surface of the A film sheet 17 and the back surface of the B film sheet are connected. After that, the above-described operation is repeated.

In the present embodiment, the film sheets can be continuously connected without causing picture displacement or positional displacement of the design items such as the design or mark of the film sheet, and the packaging can be performed exactly as designed. That is, when the pre-use film sheet is pulled toward the packaging device and a large tension is applied, the roller of the film impact relaxation device moves in the direction in which the degree of bending of the pre-use film sheet decreases,
The pulling margin of the previously used film sheet is obtained, and the joint impact of the previously used film sheet can be reliably absorbed. In addition, by providing a registration mark that also serves as a cut mark on the film sheet and detecting the registration mark with a dedicated phototube, a complicated electric circuit is not required, and the film sheet is conveyed at a constant speed and a mark deviation occurs. It is possible to easily carry out the automatic packaging work without doing so. Since the pre-use sheet roll and the post-use sheet roll are repeated for many cycles, a long continuous work such as day and night operation is continued. In addition, the reliability of the product accuracy in packaging and bag making does not deteriorate, and the operating efficiency of packaging does not decrease. Although the packaging device performs intermittent feeding, the tension of the film sheet is kept constant by providing the dancer roller.

Regarding automatic packaging, in many cases, automatic packaging for a long time, for example, continuous day and night, is often performed in order to improve efficiency, improve operating efficiency, achieve stable supply in the secondary market, and reduce costs. The present invention is extremely effective because, for example, one sheet of about 1000 meters may be continuously used for a certain time.

Next, a connection process for changing specifications, which is performed before the end of the previously used film sheet is not detected, will be described.

As shown in FIG. 3, the pre-use sheet roll 12 corresponds to the post-use sheet roll in the previous packaging operation, and the tip of the pre-use film sheet 14 of the pre-use sheet roll 12 has a plurality of ends. Tension roller 1
8, 19, 80, 87, 29a, 29b, 29c, 3
8, 39, 40, 41, 42, 42a (for tension rollers 80 and 87, see FIG. 8), they are guided to a vertical filling and packaging apparatus (not shown). The post-use sheet roll 15 is set in the packaging film joining device, and the pair of fixing pins 3 is used.
0 to remove the first film splicing opening / closing member 32
As shown by the dotted chain line, it stands by at the position rotated downward. Post-use sheet roll 15 Post-use film sheet 1
7 by hand to pull out a plurality of tension rollers 20, 2.
1, 2 and 28 are sequentially wound, and as shown in FIG. 8, a half of the adhesive tape 78 is attached to the use starting end 88, and the use starting end 88 is sucked together with the adhesive tape 78 by vacuum suction to the first suction plate 53. Then, the first film splicing opening / closing member 32 is rotated upward and held at that position by the pair of fixing pins 30. Here, only the first suction plate 53 is in the vacuum state by the suction switching solenoid valve 50.

The number of bag-filled products to be manufactured is set in the setting section 81, the vertical filling and packaging apparatus is activated, and the pre-use film sheet 14 is consumed as the filling and packaging progresses. When the number of the bagged products 11 (see FIG. 1) to be manufactured is counted by the counter 93 and the counted number matches the set value of the setting unit 81, the control unit 75 causes the heating element circuit 73 for heat welding to nichrome wire 71. , 72 are made to generate heat (step 96 in FIG. 13), and further, the air cylinder 70 for heat welding is activated and the second cutting blade driving air cylinder 61 is driven. As a result, as shown in FIG. 10, the first suction plate 53 advances, the pre-use and post-use film sheets 14 and 17 are joined by the adhesive tape 78 and heat welding, and the second cutting blade 65 advances. Then, the previously used film sheet 14 is cut (step 9 in FIG. 13).
7), splicing of the packaging film is completed.

Next, the manual switching operation will be described.

The vertical filling and packaging apparatus is activated, and the pre-use film sheet is consumed as the filling and packaging progresses. When the specification is changed, the automatic / manual selector switch 74 is switched to the manual side, and the control unit 75 causes the heat welding heating element circuit 73 to heat the nichrome wires 71 and 72 (step 96 in FIG. 13). Further, the air cylinder 70 for heat welding is activated and the second cutting blade driving air cylinder 61 is driven. As a result, as shown in FIG.
The first suction plate 53 advances, the pre-use and post-use film sheets 14 and 17 are joined by the adhesive tape 78 and heat welding, and the second cutting blade 65 advances to cut the pre-use film sheet 14. (Step 97 in FIG. 13), the joining of the packaging film sheets is completed.

FIG. 14 is a diagram showing a modified example of the film impact absorbing means of the film sheet joining device of the present invention.

The swing roller 35a has a pair of brackets 34 (one of which is not attached) whose one end is swingably supported by a pair of opening / closing member supporting brackets 47 (one of the opening / closing member supporting brackets is not shown). It is rotatably supported at the other end (shown). An end of the tension roller 29 is rotatably supported at the other end of the pair of brackets 34, and the other end of the pair of brackets 34 and the pair of opening / closing member supporting brackets 47 are supported.
And a pair of coil springs 92a (one coil spring is not shown) hung between
a is biased in the direction of pressing the film sheet 14. When the film sheet 14 is pulled toward the packaging device, the swing roller 35 swings to the right in FIG. 14 against the elastic force of the pair of coil springs 92a, and the two-dot broken line 35
Come to position a '. In this example, the tensile margin of the film sheet is shorter than that in the example shown in FIG. 3, but the film sheet also functions properly in this case. Of course, also in this case, the pair of brackets 34 need only be swingable only when the film sheets are connected, that is, when the previously used film sheet is pulled by the packaging device.

[0064]

Since the present invention is configured as described above, it has the following effects.

(1) When connecting the film sheets, if the film sheets are pulled toward the packaging device and a large tension is applied, the rollers of the film impact absorbing means move in a direction in which the degree of bending of the film sheets decreases, and Since the pulling allowance of the film sheet can be obtained, it is possible to relieve the sudden change in the tension of the film sheet, that is, the splicing impact of the film sheet.Also, the film sheet is provided with a registration mark that also serves as a cut mark, and the photocell dedicated to the splicing device is used to By adopting a realistic method of detecting the registration mark, the complicated electric circuit for driving the drive roller as in the past is not required, and the mark deviation occurs when the film sheet is conveyed at a constant speed. The automatic packaging work can be performed without the need.

(2) In addition to the adhesive tape, the pre-use film sheet and the post-use film sheet are connected by heat welding, so that in a portion such as a bag-making guide where the film conveying direction greatly changes or a vertical seal portion, Even if a large force is applied to the connection portion of the film sheet, peeling from the connection portion does not occur, and packaging work such as liquid matter may be interrupted for a long time due to scattering around the machine. Absent. This is because if a kneading device, such as a konjac manufacturing device, or a charging device, such as a sterilizer, is connected to the front stage of the packaging device, a large amount of problems or packages that lack conventional quality stabilization can be created. It is extremely effective in solving the problem of discarding in.

(3) The slack of the film sheet is surely absorbed by the conventional dancer roller and the roller of the film impact absorbing means according to the present invention, and the cause of the peeling from the connecting portion is eliminated and the film sheet is printed. No misalignment or misalignment of the marked patterns or marks does not occur, and it is not necessary to interrupt the packaging operation and adjust again for misalignment of the bag-making cut position, and no production loss occurs.

(4) Since peeling does not occur at the film connecting portion, it is necessary to remove the pre-use film, replace the post-use film, and readjust the mark position, as in the conventional case, for a long period of time with the loading device in the preceding stage. There is no risk of secondary stabilization of the package or the input pipe due to contact with the outside air without stopping the product and stabilizing the product, and there is sufficient quality assurance and health and hygiene benefits of film packaging. Can enjoy.

(5) Since the film sheets are connected within one pitch of the film pitch mark, it is not necessary to stop the preceding-stage charging device such as a kneading machine for konjac paste as a package, and continuous operation becomes possible. Increases stability.

Further, by using a roller of the film impact absorbing means that can move in a direction substantially perpendicular to the conveying direction of the film sheet, the pulling margin of the film sheet can be made long (for example, a plurality of pitches of photocell marks). Very effective for high-speed packaging equipment.

[Brief description of drawings]

FIG. 1 is a schematic view of a vertical filling and packaging apparatus applied to an example of a packaging film joining apparatus of the present invention.

FIG. 2 is a cross-sectional view of a main part of FIG.

FIG. 3 is a schematic view of an embodiment of the packaging film joining device of the present invention.

FIG. 4 is a schematic left side view of FIG.

5 is a sectional view taken along line BB of FIG.

FIG. 6 is a sectional view taken along the line CC of FIG. 3;

7 is a partially enlarged view of the film splicing opening / closing member of FIG.

FIG. 8 is an enlarged view of a main part of FIG.

FIG. 9 is a diagram showing a film sheet according to the present invention.

FIG. 10 is a diagram showing a state during welding of a film sheet in the present invention.

FIG. 11 is a view showing a joint portion of a film sheet according to the present invention, where (a) shows a case where the previously used film sheet is temporarily fixed to the first suction plate, and (b) shows the previously used film sheet. The case where it is temporarily fixed to the second suction plate is shown.

FIG. 12 is a control block diagram of the packaging film joining device of the present embodiment.

FIG. 13 is a film sheet connection (connection) according to the present invention.
It is a flowchart of a process.

FIG. 14 is a view showing a modified example of the film impact absorbing means of the packaging film sheet joining device of the present invention.

FIG. 15 is a perspective view of a film sheet according to a conventional example of a superposition adhesion method.

FIG. 16 is an overall schematic perspective view of an apparatus for adhering a post-use film sheet to a post-use film sheet by an automatic splicing method according to a conventional example by applying an adhesive tape from a use start end to a post-use film sheet.

FIG. 17 is a perspective view of the film sheet holder shown in FIG.

18 is a cross-sectional view of the presser body shown in FIG.

FIG. 19 is a side view of FIG.

20 is a perspective view of the crimp body shown in FIG. 16. FIG.

21 is a side view of the film sheet holder in an open state with respect to the pressure-bonding body shown in FIG. 20. FIG.

FIG. 22 is a side view of the same closed state.

[Explanation of symbols]

 A Filling material (konjac paste) 1 Cylindrical film 2 Inserting nozzle 3 Bag making guide (Sera) 4a, 4b Handling roller pair 5 Film sheet (previously used film sheet) 6 Guide needle 6a Main pipe 7 Vertical seal part 8a, 8b Film Feed roller pair 9a, 9b Horizontal seal portion 10 Cutting blade 11 Bagging product (konjac product) 12 Pre-use sheet roll 13 Roll shaft 14 Pre-use film sheet 15 Post-use sheet roll 16 Roll shaft 17 Post-use film sheet 18 Tension roller 19 Tension roller 20 Tension roller 21 Tension roller 22 First film end limit switch 23 Detection piece 24 Second film end limit switch 25 Detection piece 26, 27 Rotation fulcrum 28 Tension roller 29a, 29b, 29c Tension roller La 30, 31 Fixing pin 32 First film splicing opening / closing member 33 Second film splicing opening / closing member 34 Bracket 35, 35 'Film impact absorbing means roller 35a, 35a' Swing roller 36 Film splicing photoelectric tube 37 Packaging Photoelectric tube 38 Tension roller 39 Tension roller 40 Tension roller 41 Tension roller 42, 42a Tension roller 43 Brake weight 44 Weight 45 Dancer roller 46 Support member 46a Guide member 47, 48 Opening / closing member support bracket 49 Packaging device main body 50 Adsorption switching electromagnetic Valve 51 Groove 52 Suction hole 53 First suction plate (press plate for heat welding) 54 Suction surface 55 Suction hole 56 Second suction plate (welding receiving plate) 57 Suction surface 58,59 Welding portion 60 First cutting blade Air cylinder for drive Da 61 second cutting blade driving air cylinder 62 spring 63 spring 64 first cutting blade 65 second cutting blade 66 first slider 67 second slider 68 first slider shaft 69 second slider shaft 70 Air cylinder for heat welding 71,72 Nichrome wire 73 Heater circuit for heat welding 74 Automatic / manual changeover switch 75 Control unit 76 First silicone mat 77 Second silicone mat 78 Adhesive tape 79,80 Tension roller 81 Setting unit 82 Adhesive surface 83 Printing pattern 84 Photoelectric tube mark (film pitch mark) 85 Cut receiving plate 86 Tension roller 87 Tension roller 88 Start of use 89 End of use 90 First heat-welded portion 91 Second heat-welded portion 92 Coil spring 92a Coil spring 93 Counter 94,95,96,97 -Up 98 printing machine 99,99a film impact mitigation measures

Claims (4)

[Claims] 1. A use end of a film sheet fed from a pre-use sheet roll and a use start end of a film sheet fed from a post-use sheet roll are overlapped, and the overlapping portion is integrally connected with an adhesive tape. In a packaging film sheet splicing device configured to be continuous, a film sheet provided with a film pitch mark at a predetermined pitch, which is fed from a pre-use sheet roll or a post-use sheet roll, is fed to the packaging device side. A pair of openable and closable film splicing opening and closing members provided on the way, and a pair of adsorbents provided with vacuum means as temporary fixing devices for the film sheets, respectively, provided on the pair of film splicing opening and closing members, A heating element for welding provided in a portion of at least one adsorbent that faces the other adsorbent, and at least one of the adsorbents Is fed from a pre-use film sheet roll provided between the heat welding unit and a sheet roll Cutting means for cutting the film sheet, provided between the heat welding unit and the packaging device,
A mark detecting means for detecting the film pitch mark of the film sheet, a heat-welding unit and the packaging device are provided movably in the direction of pressing the film sheet and elastic so as to bend the film sheet. A film impact absorbing means provided with a roller urged by a member, an end detecting means for detecting an end of use of the film sheet, which is provided near the roll shafts of the pre-use sheet roll and the post-use sheet roll, respectively. When the mark detecting means detects a film pitch mark after the detecting means detects the end of the film sheet, the welding driving means is driven, and the cutting means is also controlled. Packaging film sheet splicing device. 2. The packaging film sheet joining device according to claim 1, wherein the roller of the film impact absorbing means is movable only when the film sheets are connected. 3. The roller of the film shock absorbing means is a roller rotatably supported by a supporting member provided so as to be movable in a direction substantially perpendicular to the transport direction of the film sheet. The packaging film sheet joining device described. 4. The packaging film according to claim 1, wherein the roller of the film impact absorbing means is a swing roller rotatably supported at the other end of a bracket swingably provided at one end. Sheet joining device.