JPS59414B2 - Lamination device for opening material to packaging material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for laminating an opening material to a packaging material, and more specifically, for example, it forms a packaging bag in which various items are packed in bulk and sealed, an overwrapper in which a boxed item is wrapped and sealed, etc. The present invention relates to a device for laminating a band-tipped opening material made of synthetic resin or aluminum foil to a packaging material for packaging.

The present invention is a pasting device configured to feed and align and stick a banded opening material at predetermined time intervals to packaging materials that are continuously or intermittently fed. An attempt is made to accurately affix an opening material, also called a cut tape, for easily opening a packaging bag or an overwrapping paper, at predetermined intervals on the packaging material.

The invention will now be described with reference to illustrated embodiments.

The pasting device shown in this example is installed during the feeding of packaging materials in the packaging machine (not shown, but may be either vertical or horizontal). As shown schematically, there is a mechanism section A that intermittently feeds a series of tape foils with a width of a foot from a tape body for opening material, a mechanism section B that cuts the tape foil into one sheet of tearing tape, and a mechanism section B that cuts the tape foil into one sheet of tearing tape. It is equipped with a mechanism section C that holds tapes one by one and feeds them to the packaging material at predetermined time intervals, and a mechanism section D that laminates the tapes to the packaging material, and processes from tape feeding to pasting every pitch. A series of examples of types that can be automatically created are shown below. This device will be explained for each of the above-mentioned mechanical parts.

However, regarding the transmission means in each mechanical section, a chain train is a type in which a chain is hung between both chain wheels, and a gear train is a type in which both gears are meshed, respectively, for convenience's sake. First, in the mechanism section A for intermittent tape feeding, a pair of upper and lower feed rollers 9 and 16 are arranged on shafts 5 and 10 supported between the left and right machine frames 1 and 2. The lower shaft 5 has a feed lever 6 connected to its right end via a one-way clutch 7, and a crank eccentrically connected to the end of a drive shaft 3 which is continuously rotated from the drive section of the packaging machine via a chain train 8. It is connected to the head throat 4 via a pin and a long hole. This allows axis 5
At the same time, the feed roller 9 is intermittently rotated in one direction by a predetermined angle via the feed lever 6 every time the crank rod 4 reciprocates. On the other hand, the upper shaft 10 has eccentric shaft portions 11 at both outer ends inserted into support plates 12 inside the machine frames 1 and 2, and both ends are supported by movable bearings disposed inside the support plates 12. It is supported between the tools 13.

As a result, the feed roller 16 made of a rubber surface and pivotally fitted in the center of the coaxial shaft 10 can follow the feed roller 9 in an appropriate pressed state using the knobs 14 and springs 15 for each movable bearing 13. It's summery. In addition, by operating the handle 17 attached to the eccentric shaft portion 11 toward the machine frame 2 side, the shaft 10
Since the feed roller 16 can eccentrically rotate, the feed roller 16 can be moved upwardly away from the lower roller 9 to insert and set the starting end of the tape foil t from the tape body T. The tape body T is selected and used according to the properties of the packaging material, and is made by winding a series of tape foils made of thermoplastic colored synthetic resin film that is appropriately wider than the packaging material and has a higher tensile strength. It is set replaceably on a support shaft 18 supported by the machine frame 1. 19 is a guide plate installed horizontally in front of both rollers 9 and 16.

Next, in the cutting mechanism section B for the table, the above-mentioned both feed rollers 9
, 16 in front, a support plate 20 installed on the machine frames 1 and 2
and the chain wheel 2 of the main shaft 22 supported between the branches 21 of the machine frame 1
3, and a rotating chain wheel 2 of a pin 24 supported on the other end of the support plate 20.
An endless chain 26 is hung horizontally between the knife 5 and the knife 26, and a knife 28 is attached to the chain 26 via a holder 27 so as to be adjustable in position and replaceable.

The main shaft 22 is connected to the drive shaft 3 by a chain row 29.
, transmission shaft 30 and bevel gear train 31, the chain 2 is synchronized with each rotation of the drive shaft 3.
6 and the knife 28 are cyclically moved in a fixed direction along a feeding holder 41, which will be described later. However, the cutting stroke of the knife 28 is set to an effective length that is the lower part of the chain 26 and is the same length as each holder L46 of the feeding holder 41. Note that the rotating chain wheel 25 is connected to the pin 24.
At the same time, the position can be adjusted using an adjustment bolt 32.
Reference numerals 33 and 34 are guide rails for the chain 26 arranged above and below the cutting stroke of the knife 28.

Before and after the cutting stroke portion of the knife 28 described above, a pair of rotating shafts 35 are supported in parallel between the machine frames 1 and 2, and horizontally thin presser plates 36 are connected to each other in a facing down position. .

Both rotating shafts 35 are connected to each other via an arm 37 and a pin 38, and one is connected to the cam 40 of the first drive shaft 3 via a cam lever 39 connected to the end of the shaft. Therefore, before the knife 28 starts cutting, both presser plates 36 are tilted downward in synchronization with each other to press and hold the tape foil t from both sides between it and the holder 46 of the feeding holder 41, which will be described later. It is starting to return to an upward tilt. In the feeding mechanism section C, a main shaft cylinder 42 supported between the machine frames 1 and 2 is located below the front of the feeding roller 9.
A feeding holder 41 with a suction holder 46 arranged on the outside
is installed.

This holder 41 is of a type that feeds the opening table while holding it by suction based on intermittent rotation every 1/4 by a rotation control mechanism to be described later, and its main shaft cylinder 42 is a square cylinder with an octagonal cross section. It is shaped like a flat seat 4 on the four sides of its outer periphery.
3 is formed in the axial direction, and an intake groove 45 is opened in a cross shape from the circular hole 44 to each seat 43. On the other hand, each suction holder 46 serves as both a knife holder and a bonding holder, and both are in the shape of an oblong block of the same length, and are removably attached to each seat 43. An intake groove 47 formed in the longitudinal direction is aligned and communicated with the intake groove 45.

A receiving groove 48 for the knife 28 is etched in the longitudinal direction on the outer periphery of each holder 46, and on both sides of the receiving groove 48, first and second receiving surfaces 49 for the respective presser plates 36,
50 is formed in the first receiving surface 49, and the intake groove 4 is formed in the first receiving surface 49.
A large number of intake holes 51 communicating with the air intake holes 7 are open and arranged in the longitudinal direction. The first receiving surface 49 also serves as the bonding surface of the opening tape, and is formed into an arcuate surface having the same radius as the second receiving surface 50. 52 is a recess formed in the front edge of the first receiving surface 49.

As for the intake means for the above-mentioned feeding holder 41, an intake pipe 53 is fixedly supported on the machine frame 2 and is laterally supported in the circular hole 44 of the main shaft cylinder 42.

This intake pipe 53 communicates an intake hole 54 extending in the axial direction with an intake device (not shown) via a pipe, and the intake hole 54 and the intake hole 54 are connected to the outer periphery of the pipe portion corresponding to each of the holders 46. A communicating port 55 is formed to open in the axial direction.
However, the opening 55 is approximately 140 to 15 mm in the circumferential direction of the tube 53.
It is opened over 0 degrees and is set so that the holder 46 can communicate with the intake grooves 45 and 47 over the range from the front of the cutting position (also referred to as the receiving position) to the bonding position. There is. Regarding the rotation control mechanism for the above-mentioned feeding holder 41, a chain wheel 57 with a clutch, which is pivotally fitted to the shaft end 56 of the main shaft cylinder 42, is connected to the chain row 58.
In accordance with the fact that the chain wheel 57 is of a type in which continuous constant rotation in one direction including idle rotation is performed via the chain wheel 57, an electromagnetic clutch 59 attached to the shaft end 56 is linked.

The means for switching on and off the clutch 59 is not particularly limited, but for example, it is connected [ON] by the cam 60 on the drive shaft 3 and its switch 61, and
Separation "0FF" by upper cam 62 and its switch 64
shall be carried out. This causes the clutch 59 to “0N,
0FF", the holding body 41 rotates intermittently by 1/4 in response to one revolution of the drive shaft 3, and performs a feeding operation in synchronization with the feeding and cutting operations of the table. The above-mentioned cam 62 is made of a square plate as shown in the figure, and four cam parts 63 are formed at equal angular intervals at each corner of the cam 62, and the switch 64 for this is a rod with a trochanter. It is assumed that each time 65 is pushed by each cam portion 63, it is turned [0N]. Further, the rotation transmission mechanism of the holding body 41 may be an intermittent type that does not require the clutch 59. In order to more accurately rotate the holder 41, a braking means for positioning and stopping the holder 41 is fixed on the shaft end 56 of the main shaft cylinder 42 in parallel with the cam 62. A locking lever 69 is provided opposite to the tarlage board 66.

The clamp disc 66 has four locking grooves 67 that are substantially circular and are formed at equal intervals on the outer periphery of the cam portion 63 of the cam 62, and each groove 67 is disposed at a predetermined angle difference with respect to the cam portion 63 of the cam 62.
A guide surface 68 is formed in between, and a locking lever 69 for this is supported by a pin 71 of the machine frame 1 and is always biased and held by a spring 72 in a state in which the pawl 70 is pressed against the outer peripheral surface of the clutch disk 66. has been done. As a result, in the braking mechanism, after the clutch 59 is turned 0FF by turning the switch 64 0N, the pawl 70 of the lever 69 enters into engagement with the locking groove 67 at the appropriate time, thereby stopping the subsequent inertial rotation of the holder 41. Thus, the holder 46 can be accurately stopped and held at each rotation end position, particularly at the cutting position. The above-mentioned lever 69 releasing means may include, but is not limited to, an electromagnetic solenoid 73 as an example.
has been adopted.

The solenoid 73 is connected to the cam 76 of the drive shaft 3 and the switch.
The lever 69 is set to be pulled and tilted clockwise in the figure via the rod 74 and the nut 75 when the clutch is turned to "0N" by the JMoV, thereby releasing the lever 69 and separating it from the clutch plate 66. , a ring, etc. may be substituted.In the pasting mechanism section D that cooperates with the above-mentioned feeding mechanism section C, the above-mentioned feeding holder 41 The bonded body 84 rotates intermittently in synchronization at the same circumferential speed as
is equipped with. The slave shaft cylinder 78 is supported between movable arms 80 at both ends of a support shaft 79 connected between the machine frames 1 and 2 in the front direction of the holder 41, and is inserted into the elongated hole 81 of the machine frames 1 and 2. It is connected to the main shaft cylinder 42 via a spur gear train 82, and heater brushes 83 are removably attached to both ends of the shaft. The above-mentioned bonding body 84, which is replaceably fitted onto the slave shaft cylinder 78, has a rectangular cylinder block shape with a square cross section, and each ridge thereof has a groove corresponding to the first receiving surface 49 of each suction holder 46. A protruding base 85 is formed to protrude uniformly along the axial direction. Each stand 85 has a bonded body 8
The heaters 86, which are detachably inserted into the heaters 86, are heated when the heater 86 is on, and are arranged at equal intervals in the circumferential direction and formed into arcuate surfaces with the same radius. In such a bonded body 84, the outer circumferential surface between each stand 85 is a flat surface below the rotation locus plane of the stand 85 in order to reduce and prevent heating of the packaging material.

In addition, a spring-loaded adjustment device 8 equipped on each movable arm 80
7 allows the state of contact between the respective bases 85 and the receiving surfaces 49 to be properly adjusted and set. Also, the holding body 41
In the bonded body 84, the abutting position between the receiving surface 49 and the stand 85 is the bonding position of the cutting tape, which is set approximately 150 degrees forward from the cutting position. Reference numeral 88 denotes a pair of knives that are attached to one end of each stand 85 of the bonding body 84 so as to be detachable and position adjustable as necessary.

This knife 88 is used to cut a cutting line parallel to one side edge of the packaging material of the relevant size when pasting the cut tape, and is placed in front and behind the table 85 and attached to each of the suction holders 46. They correspond to the receiving groove 48 and the recess 52, respectively. Note that the spacing between the knives 88 can be adjusted, and only one of the knives 88 can be used. Reference numeral 89 denotes guide rollers for packaging material arranged before and after the feeding holder 41.

Regarding packaging materials, we use various synthetic resins, aluminum foil,
Products made of cellophane, various types of paper, etc. are targeted, but both are examples of continuous strips of constant width. The device of this example configured as described above is able to move the film to a predetermined position within one pitch length (one bag length) by cooperation among the mechanism parts A, B, C, and D based on the set operation order. It is possible to perform tape lamination, and the operation of such tape lamination will be explained with reference to FIG.

However, with respect to tape lamination, we will mainly exemplify a mode in which lamination is performed in the width direction at predetermined pitches on a thermoplastic packaging film that is continuously fed to the packaging section based on a heat bonding method. That is, each time the drive shaft 3 rotates in time with the wrapping operation, the feed rollers 9 and 16 rotate intermittently via the crank rod 4, thereby feeding the tape foil t by a predetermined amount (one cut tape) toward the cutting section. be included. In response to this, the feeding holder 41 is intermittently rotated clockwise via the electromagnetic clutch 59, the clutch disc 66 of the braking means, and the locking lever 69 until it stops at the cutting position. The suction holder 46 is attached to the intake pipe 5 as shown in FIG.
As soon as the first receiving surface 49 receives the starting end of the tape foil t in front of the guide plate 19 from below, the suction hole 51
Hold it by adsorption. The cutting mechanism section B is activated in time with the completion of the suction and holding of the tape at the cutting position of the feeding holder 41, and both rotating shafts are operated from the drive shaft 3 side via the cam 40 and the lever 39. While the holding plates 36 of the chain 2
6 and the knife 28 cuts the starting end of the tape foil along the receiving groove 48 of the holder 46 while accurately horizontally moving the cutting stroke.

(See Figure A) As a result, the tape portion separated from the tape foil t and held by suction on the first receiving surface 49 is made into one cut tape t1 having a narrow width and appropriately longer than the film width. Mechanisms A and C are operated again in time with the completion of the above-mentioned tape cutting, and while the feeding rollers 9 and 16 feed the next tape, the feeding holder 41 carries out the next pitch rotation. Then, the above-mentioned cutting tape t1 is transferred while being sucked and held by the holder 46.

(Refer to the figure) In the process in which the holder 46 rotates at the same peripheral speed as the film F through the second pitch from the cutting position based on the continuous pitch rotation of the holder 41, the holder 46 rotates at the same circumferential speed as the film F. Each intake groove 45, 4 is connected to the mouth 55 of the intake pipe 53.
When 7 is separated and cut off, the position is almost synchronous (approximately 150 degrees position)
Then, the first receiving surface 49 and the base 85 of the bonding body 84, which is intermittently rotating at the same circumferential speed with respect to the holder 41 via the spur gear train 82, are simultaneously brought into alignment and contact, and the cutting tape t1 and the film F are brought into contact with each other.
While sandwiching the two, the bonding surfaces of the two may be properly melted and bonded to each other by heating to bond the tape to the film. At the same time, a cut can be made into one side edge of the film F using the knife 88 on the stand 85. (Figure C, No (bright)) At the time of this pasting, the second suction holder 46 (180 degrees) from the holder 46 in the same position is cut in a downwardly communicating air intake position with respect to the intake pipe 53 as described above. It is moving to the position.After that, the feeding to the tape mentioned above,
The operations of receiving, adsorbing, holding, cutting, feeding and laminating are successively continued for each pitch to heat laminate the cut tape.

As a result, each cutting tab t1 having a length L is mutually connected to each other at a predetermined portion of each film portion f at a pitch P corresponding to each bag on one side of the film F having a width L1 as shown in FIG. 9A. are laminated in a straight line over the entire width of the film at the same pitch P, and protrude from one side edge of the film part f without being laminated as a knob T2 when opening the package by L-L1. In accordance with this, incisions M by the knife 88 are formed before and after the knob T2. Note that the welding between the film and the tape may be adjusted based on the temperature adjustment of the heater 86. Further, the table or film may be preheated. Next, cold and hot adhesive tape lamination using the apparatus of this example will be explained.

In other words, for opening materials used depending on the type of packaging material, such as aluminum foil or paper, adhesives such as solution type, pressure sensitive type, or aqueous solution can be applied to the pasting side (one side) of various materials other than synthetic resin. When using adhesive materials such as molds or hotmel molds that are pre-coated with an adhesive, or when using packaging films that are pre-coated with adhesive or the like for each pitch, remove the heater 86 of the bonded body 84 or turn it off. By setting the tape in this state, tape lamination can be performed in the same operating mode as described above. In this way, the film F that has been tape-bonded by the heat-adhesive or cold-adhesive method as needed by the apparatus of this example can be wound up again into a roll as a so-called cut-tabe film, or it can be directly transported to the packaging section of the machine. It is used by being fed to the side, but in any case, in various packaging, it is folded into a cylindrical shape and sealed at the overlapping edges, and then sealed at two longitudinal points after filling with the product. When it is made into one pillow-like bag or when it is made into an overwrapping paper that covers the surface of the boxed product, the cuttable tab t1 is formed into a bag F1 as shown in FIG.
, the inner circumferential surface of the upper wrapping paper F2 is wrapped around the inner circumferential surface of the upper wrapping paper F2, and the tab T2 thereof is exposed outside the sealing part S1 of the bag and the adhesive part S2 of the paper, respectively, and the incision M is formed in the sealing part S1 and the adhesive part S2. are located respectively.

As a result, for bags F1 and paper F2 with such tapes, by simply peeling off the cut tape t1 using the above-mentioned knob T2 or notch M, the film part adhered to the tape can be removed together. Can be easily opened by tearing. In particular, since the cutting tape is attached to the inner circumferential surface of the bag or paper, the film portion around the cutting tape can be neatly torn and the bag can be opened without any problems. As mentioned above, in this example device which can perform cut tape lamination, each operating process of tape feeding and cutting can be performed in a series, so the tape is prepared in advance to be cut to a predetermined width and length. It is no longer necessary to feed the tape bodies one by one, and it is sufficient to simply set the tape bodies of the required size.

Further, when cutting the tape, the feeding holder 41 can be accurately and intermittently rotated by the clutch disc 66 of the braking means and the lever 69 to stop and hold it at the cutting position, so that the tape can always be cut at a constant position. Moreover, since the starting end of the tape foil from the tape body T is adsorbed by the holder 46 of the feeding holder 41 and held between the holder 46 and the holding plate 36, the tape, which tends to float and fluctuate greatly even in a slight breeze, can be stabilized. While held stationary, straight cuts can be made with great precision, and all cut tabs can be cut to the same predetermined size. Moreover, when feeding and laminating the cut tape, the tape is fed at the same circumferential speed as the film, and the alignment position with the film F is adjusted by setting the communication and isolation of the grooves 45 and 47 with respect to the opening 55 of the intake pipe 53. Since the cutting tape t1 can be continuously adsorbed and held until adhesion, the cutting tape t1 does not peel off or shift from the holder 46 during feeding, is fully adapted to continuous feeding of the film, and can be laminated accurately and neatly at a predetermined position. Moreover, since the outer circumferential surface of the bonded body 84 is shaped so as to be retracted from the film feeding line, thermal damage to the film can be avoided during heat bonding of the tape. Note that the device shown in this example may be modified as appropriate.

The feeding mechanism A may be of a type that corresponds to the properties, size, etc. of the opening material, such as a pair of feeding mechanisms with an appropriate number of rubber or spring-biased feeding pieces arranged at equal intervals around the outer periphery. In continuous or intermittent rotation of the body, a type may be adopted in which the tape foil is fed in a predetermined amount while being held while the feeding pieces are aligned and abutted against each other. In addition, when using a tape in the form of a continuous string with a width and thickness that does not require cutting into individual pieces as an opening material, the tape is inserted from one end of the holder 46 of the illustrated feeding holder 41. It may also be a type that feeds in the axial direction. Cutting mechanism part B
In this case, the knife is moved alternately along the axial direction of the holder 41 by appropriate reciprocating means, or the knife is reciprocated up and down or back and forth (left and right) toward the holder, and furthermore, in the axial direction of the outer circumference of the roller. It is also possible to use a type in which a knife is attached to the blade and cut based on continuous or intermittent rotation. Further, when the above-mentioned band-shaped tape is fed from the axial direction of the holder 41, it may be provided at one end of the holder. Particularly in the case of the vertical cutting type, a movable holding piece for the table using a sponge or a spring may be attached to one or both sides of the knife. Further, instead of using a knife, high frequency or ultrasonic vibration may be used for cutting. In the feeding mechanism section C1 and the bonding mechanism section D, the holder 41 and the bonding body 84 may have a polygonal shape, a roller shape, or a conveyor shape, for example. The bonding body 84 may be replaced by the holder 41 and cut tapes may be bonded to both sides of the film. Alternatively, it may be of a flat plate type in which the heating means can be switched between 0N and 0FF. Regarding the lamination of the cut tape, the length of the tape may be appropriately selected and the tape may be laminated at the center or half of one side in the width direction of the film as shown in FIG.

Of course, the film may be laminated on both sides of the film or in a predetermined direction on the desired side of the cylindrical film. In addition, in any bonding mode, it is desirable to provide an unbonded tab T2 or an incision M. In addition, the cutting operation on the film may be performed by a rotary type or a movable type before or after the tape pasting position, and if necessary, the cutting line CL is illustrated in Figure 9, Figure 9. It may also be formed along the longitudinal direction of the tape. In this way, the laminating device of the present invention is capable of handling packaging material of a required size received by the suction receiving surface of the feeding holder at the receiving stop position during feeding of packaging materials for forming bags or overwraps. The opening material and the packaging material are held together and sent to the packaging material side, and each time the suction receiving surface and the bonding surface of the bonded body facing each other across the packaging material align and abut, the opening material and the packaging material are held and bonded to each other. It is something that can be worn. In particular, with the device of the present invention, by continuing to adsorb and hold the opening material until the appropriate position (time) for pasting it onto the packaging material, the opening material is always stably maintained in an appropriate position, avoiding shifting or floating. It is possible.

Therefore, it is possible to accurately and neatly laminate the opening material in the width direction at a fixed position within a predetermined pitch of the packaging material based on the intermittent feeding mode of the opening material in accordance with the continuous or intermittent feeding of the packaging material. It is possible.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway plan view of the device of the present invention, Fig. 2 is a side sectional view taken along the line shown in Fig. 1, and Fig. 3 is a feeding mechanism section. 4 is a side sectional view along the line of FIG. 3, FIG. 5 is a partially broken front view showing the cutting, feeding, and laminating mechanisms, and FIG. is the fifth
Figure 7 is a partially cutaway perspective view of the feeding holder and the laminated body; Figure 8 is a cross-sectional view of the tape laminating operation at each stage. 9A, 9A and 9C are explanatory diagrams illustrating the bonding form of the tape to the film, respectively. FIG. 10A is a packaging bag with a town tape,
It is an explanatory view illustrating an upper wrapper. 1, 2... Machine frame, 3... Drive shaft, 41
...Feeding holding body, 45...Intake groove, 4
6...Suction holder, 47...Intake groove,
49...Receiving surface, 51...Adsorbent L53
...Intake pipe, 55...Mouth, 84...
... pasting body, 85... stand, C: feeding mechanism section, D: pasting mechanism section, t1...
...Katsutobe, F...Film.

Claims (1)

[Claims] 1. In an apparatus for pasting cut tape of opening material in the width direction of a continuous packaging material of a predetermined width, a feeding holder and a pasting body are arranged in the middle of feeding said packaging material so as to be able to feed said packaging material. A suction receiving surface is formed on the outer periphery of the feeding holder in the axial direction thereof, communicating with an intake path for adsorbing the cut tape of the opening material, and at least the suction receiving surface of the suction path is connected to the tape cut. The packaging material is set to be able to be held by suction over a range from the receiving suction position to the pasting position for the packaging material, and the pasting body is formed with a pasting surface corresponding to the suction receiving surface of the feeding holder. What is claimed is: 1. A device for laminating an opening material to a packaging material, characterized in that the surfaces thereof are set so as to be able to align and come into contact with each other.