JP5908231B2 - Automatic packaging machine splicing device - Google Patents

Description

  The present invention relates to a technology for a splicing device for an automatic packaging machine, and more particularly to a splicing device for an automatic packaging machine in which an existing packaging material and a starting end of a preliminary packaging material are overlapped and continuous.

  2. Description of the Related Art Conventionally, an automatic packaging machine that obtains a package (product) by sealing and packaging powdery or granular objects to be packaged such as medicines, luxury products, seasonings, and other foods is known. In such an automatic packaging machine, a long film-shaped packaging material made of polyethylene, polyvinyl chloride, or other thermoplastic resin is folded in two along the longitudinal direction by a molding chute while being moved, and then a longitudinal device constituting a sealing device is formed. The folded edge portion of the packaging material folded in two by the seal bar is vertically sealed into a tube shape, and then the tube-shaped packaging material is packed into one package (one bag) by the horizontal seal bar that also constitutes the sealing device. The product to be packaged supplied from the molding chute is sealed and packaged every time.

  In the automatic packaging machine described above, the packaging material is continuously fed from the packaging material roll by the feeding device. For example, as disclosed in Patent Document 1 to Patent Document 3, the packaging material roll currently in use ( Separately from the current packaging material roll), a preliminary packaging material roll (preliminary packaging material roll) is set in advance, and the current packaging material fed from the current packaging material roll is started from the preliminary packaging material roll. A configuration of a splicing device has been proposed in which the packaging material can be continuously supplied without being stopped by being overlapped with each other.

  In particular, in the conventional automatic packaging machine splicing device, it is known that the holding portion is configured to hold the starting end of the preliminary packaging material fed from the preliminary packing material roll and press and connect the starting end of the preliminary packaging material to the current packaging material. The configuration is such that the starting end of the pre-packaging material is vacuum-sucked and held (see Patent Document 1), or the spring member is urged and held (see Patent Documents 2 and 3). ) Etc. are adopted. Further, as a mechanism for pressing the starting end of the preliminary packaging material against the current packaging material, a mechanism for pressing the starting end of the preliminary packaging material against the current packaging material while moving the starting end in a linear direction (see Patent Documents 1 and 2), or one of a pair of rotating bodies In addition, a mechanism (see Patent Document 3) that presses the current packaging material while rotating the pair of rotating bodies while holding the starting end of the preliminary packaging material is employed.

JP 2001-225810 A JP 2008-1429 A JP 2006-21888 A

  However, in the configuration of the conventional automatic packaging machine splicing device, the current packaging is disposed in the middle of the conveyance path of the packaging material extending along the vertical direction, and the pair of holding portions are fed from the current packaging material roll. Since the material is sandwiched between the left and right positions, when the starting end of the preliminary packaging material fed from the preliminary packaging material roll is attached to one holding portion, the pair of holding portions are separated while pulling up the preliminary packaging material. There is a problem that the work quality of the packaging is inferior due to the inferior workability of the prepacking material and the prepackaging material is mounted while being tilted with respect to the feeding direction. .

  On the other hand, in Patent Document 3, a pair of unit bodies in which a support shaft of a packaging material, a holding portion (rotating body) and the like are integrally assembled are formed, and the unit bodies can swing in the horizontal direction toward the outer side. The structure of the splicing device that is pivotally supported by the above is disclosed. According to this configuration, it is possible to easily attach the starting end of the preliminary packaging material by exposing one of the unit bodies toward the outside direction so that the holding portion is exposed to the outside of the machine. However, since the support shaft and the like are assembled, the size is increased, and it is necessary to secure a work space for attaching the preliminary packaging material by swinging the unit body to the side of the machine body.

  Therefore, the present invention relates to a splicing device for an automatic packaging machine, which solves the above-described conventional problems, and provides a splicing device for an automatic packaging machine that has a reduced apparatus configuration and improved workability for attaching a prepacking material. For the purpose.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, according to the first aspect of the present invention, in the splicing device of the automatic packaging machine in which the current packaging material and the starting end of the preliminary packaging material are overlapped and continuous, the pair of swing devices that are disposed in the vertically opposed positions and can swing in the outward direction. And a pair of the swinging portions, which are disposed at the vertically opposed positions sandwiching the current packaging material fed from the current packaging material roll between the pair of swinging portions, and move in the direction in which the suction surface holding the starting end of the preliminary packaging material is brought closer A pair of holding portions each having a possible suction bar, and the pair of swinging portions disposed in a vertically opposed position upstream in the feeding direction with respect to the pair of holding portions ; And a pair of cutting parts each having a pair of clamping bars that can be more clamped, and a cutting blade that is inserted into a slit formed in the pair of clamping bars so as to be movable in a linear direction. , Unrolled from roll of pre-packaging material It was in a state of being vacuum suction start of prepackaged materials to adsorb bar of one of the holding portion, superimposing a starting end of said pair of active packaging adsorption bar is actuated by said pair of suction bars material and pre-packaging material And press and connect the starting end of the preliminary packaging material to the current packaging material, and operate the pair of clamping bars to sandwich the current packaging material from the front and back surfaces in such a state. The cutting blade is moved relative to the pair of sandwiching bars so that the cutting edge protrudes from the sandwiching surface through the slit portion, and the surplus portion of the current packaging material to which the starting end of the preliminary packaging material is connected is cut. It is.

  According to a second aspect of the present invention, the swinging portion includes an opening / closing swinging body pivotally supported by a shaft portion extending in the horizontal direction so as to be able to open / close swinging in the vertical direction.

  According to a third aspect of the present invention, the swinging portion can be switched between a posture in which the suction surface of the holding portion is directed outward and a posture in a direction facing each other.

  According to a fourth aspect of the present invention, the holding portion includes a plurality of suction ribs having suction ports formed on the suction surface.

  As an effect of the present invention, it is possible to reduce the size of the apparatus and improve the workability of attaching the preliminary packaging material.

It is the sectional side view which showed the whole structure of the automatic packaging machine which concerns on one Example of this invention. It is a front view of the automatic packaging machine of FIG. It is a side view of the splicing device of the present embodiment. It is a front view of a rocking | swiveling part and a holding | maintenance part. It is a front view of a rocking | swiveling part and a cutting part. It is the side view which showed a mode that the start end of preliminary packaging material was attached to a holding | maintenance part. It is the side view which showed the state by which the starting end of a preliminary packaging material is vacuum-sucked to a holding | maintenance part. It is the side view which showed the state by which the starting end of a preliminary | backup packaging material is pressed on the present packaging material. It is the side view which showed the state by which the excess part of working packaging material is cut | disconnected. It is the side view which showed the state by which the working packaging material and the starting end of the preliminary packaging material were continued.

  Next, modes for carrying out the invention will be described.

  First, the overall configuration of the automatic packaging machine 100 provided with the splicing device 11 of this embodiment will be outlined below. In the following embodiments, the arrow X direction in FIG. 1 is the vertical direction of the automatic packaging machine 100, the arrow Y direction is the longitudinal direction of the automatic packaging machine 100, and the arrow Z direction in FIG.

  As shown in FIGS. 1 and 2, the automatic packaging machine 100 according to the present embodiment obtains a package while intermittently supplying a long packaging material (current packaging material 1) along the conveyance path R. It is configured as an automatic packaging machine. Specifically, a feeding device 10 that continuously feeds the current packaging material 1 or the preliminary packaging material 2, a splicing device 11 that continuously superimposes the current packaging material 1 and the starting end of the preliminary packaging material 2, and a package An article supply device 12 for storing and filling an object, a forming chute 13 for folding the current packaging material 1 in half along the longitudinal direction, and a vertical seal and a lateral seal for the folded current packaging material 1 The vertical seal device 14 and the horizontal seal device 15 for sealing and packaging the package supplied from the package supply device 12 and the cutter for cutting the current packaging material 1 in which the package is sealed and packaging is obtained. It is comprised with the apparatus 16 grade | etc.,.

  A support shaft 20 that supports the current packaging material roll R1 is disposed on the upper body of the automatic packaging machine 100, and the current packaging material 1 is conveyed from the current packaging material roll R1 supported by the support shaft 20 by the feeding device 10. It is continuously fed out in the downstream direction of the path R. Further, in the automatic packaging machine 100 of the present embodiment, a support shaft 21 that supports the preliminary packaging material roll R2 is disposed at a position vertically below the support shaft 20, and the preliminary packaging material fed from the preliminary packaging material roll R2 is provided. 2 is attached to a splicing device 11 described later (see FIG. 3 and the like).

  The feeding device 10 operates up and down with respect to the drive motors 22 and 23 that rotate and drive the support shaft 20 and the support shaft 21, respectively, and the current packaging material 1 that is fed out by driving the support shaft 20 by the drive motor 22. The dancer roller 24 is abutted freely, and includes a detection device 25 that detects the position of the dancer roller 24 in the vertical direction. The detection device 25 is provided with a plurality of proximity sensors arranged in series in the vertical direction, and a support shaft by the driving motor 22 according to the vertical position of the dancer roller 24 detected by each sensor of the detection device 25. The rotational speed of 20 is controlled, and the feed amount of the current packaging material 1 is adjusted.

  At a lower position of the feeding device 10, a molding chute 13 to which the current packaging material 1 fed from the current packaging material roll R <b> 1 is transferred is disposed. The molding chute 13 is formed as a surface member that is widened in the upper part and narrowed in the lower part in order to fold the developed working packaging material 1 in the longitudinal direction, and the working packaging material is formed along the surface. By passing 1 continuously, the current packaging material 1 is folded in half in a U shape in a horizontal sectional view.

  At a position behind the molding chute 13, a package supply device 12 that supplies a package is disposed. The packaged article supply device 12 accommodates a packaged article transferred from a transfer device (not shown), and opens and closes a shutter valve (not shown) to drop a certain amount of the packaged item. In the molding chute 13 described above, an intermediate receiving chute 17 for supplying an article to be packaged is formed in the molding chute 13, and one end of the intermediate receiving chute 17 is positioned below the article to be packaged supplying device 12 and is to be packaged. It is placed at the position where the object falls. The article to be packaged in the article supply device 12 is fed into the current packaging material 1 which is folded in two from the molding chute 13 via the intermediate receiving chute 17.

  A vertical sealing device 14 and a horizontal sealing device 15 are disposed below the molding chute 13 for longitudinally and laterally sealing the current packaging material 1 folded in two. The folded-in-use packaging material 1 is vertically sealed at both side edges by a vertical sealing device 14 to form a tube, and further laterally sealed by a horizontal sealing device 15 disposed below the vertical sealing device 14. It is made a bottomed state. Then, the package to be packaged is supplied from the package supply device 12 intermittently through the intermediate receiving chute 17 through the molding chute 13 into the bottomed working packaging material 1 and further sent out in the longitudinal direction. The upper side of the material 1 is laterally sealed and the packaged object is hermetically packaged.

  A cutter device 16 is disposed at a position below the horizontal seal device 15, and the current packaging material 1 in which an object to be packaged is hermetically packaged by the horizontal seal device 15 is linearly cut at the horizontal seal portion by the cutter device 16. By being (cut), a package body in which one or two or more pieces are continuous is obtained. In the automatic packaging machine 100 of the present embodiment, the cutter device 16 is provided so as to be movable up and down with respect to the main body, and the current packaging material is moved by the cutter device 16 moving down while holding the current packaging material 1. 1 is intermittently sent out in the longitudinal direction. The cutter device 16 feeds the current packaging material 1 by holding the horizontal seal portion of the current packaging material 1 at the upper stop position and moving downward by a distance corresponding to one package, and is illustrated at the lower stop position. The horizontal seal portion is cut or perforated by the cutter blade.

  A discharge duct 18 is disposed at a lower position of the cutter device 16, and a package obtained by the cutter device 16 is discharged outside the machine through the discharge duct 18.

Next, the configuration of the splicing device 11 of this embodiment will be described in detail below.
As shown in FIGS. 1 and 2, the splicing device 11 of this embodiment is disposed on a frame body 101 formed on the upper part of the machine body. In addition to the support shafts 20 and 21 described above, the drive motors 22 and 23 and the dancer roller 24 that constitute the feeding device 10 are attached to the frame body 101. The current packaging material roll R1 is supported by a support shaft 20 that is rotatably disposed above the frame body 101, and the preliminary packaging material roll R2 is below the frame body 101 and vertically below the support shaft 20. It is supported by a support shaft 21 that is rotatably disposed at a position.

  A plurality of guide rollers 40 to 46 are arranged on the conveyance path R from the current packaging material roll R1 to the molding chute 13, and the current packaging material 1 fed by the feeding device 10 is guided by these guides. The rollers 40 to 46 are supplied after being wound around a predetermined holding angle. In the present embodiment, the current packaging material 1 is fed forward from the current packaging material roll R1 toward the front of the machine body, then redirected via the guide rollers 41 and 42, and is fed substantially horizontally toward the rear of the machine body. The The guide rollers 40, 41, 43 to 46 are pivotally supported at positions above the frame body 101, and the guide roller 42 is pivotally supported by a swing portion 30 (open / close swing body 30b) of the splicing device 11 described later.

  Further, guide rollers 47 to 49 are disposed below the frame body 101, and the preliminary packaging material 2 fed out by the feeding device 10 includes the guide rollers 47 to 49 and the above-described guide rollers 43 to 49. 46 is supplied by being wound around a predetermined holding angle. In this embodiment, the preliminary packaging material 2 is fed forward from the preliminary packaging material roll R2 toward the front of the machine body, then turned around through the guide rollers 48 and 49, and is fed substantially horizontally toward the rear of the machine body. The The guide roller 49 is pivotally supported by a swing part 31 (open / close swing body 31b) of the splicing device 11 described later.

  The above-described guide rollers 40 to 49 are linked to the packaging material (the current packaging material 1 or the preliminary packaging material 2) supplied along the transport path R, with the roll body rotatably supported with respect to the support rotation shaft. Is rotated.

  As shown in FIGS. 3 to 6, the splicing device 11 according to the present embodiment is provided at a vertically opposed position, and a pair of oscillating portions 30 and 31 that can oscillate outwardly, and the oscillating portion 30. -It is arrange | positioned in 31 and it arrange | positions in a pair of holding | maintenance part 32 * 33 arrange | positioned in the up-and-down opposing position on both sides of the present packaging material 1 drawn | fed out from the present packaging material roll R1, and the rocking | swiveling part 30 * 31. It is composed of a pair of cutting parts 34, 35, etc., which are arranged at the upper and lower facing positions upstream in the feeding direction with respect to the holding parts 32, 33.

  In the following embodiments, the splicing device 11 has the swinging portion 31, the holding portion 33, and the cutting portion 35 configured substantially the same as the swinging portion 30, the holding portion 32, and the cutting portion 34, respectively. Unless specifically mentioned, detailed description of the swinging part 31, the holding part 33, and the cutting part 35 is omitted.

  As shown in FIG. 3, the swinging portion 30 is disposed in front of the machine body and at a position above the frame body 101. Specifically, the swinging portion 30 swings in the vertical direction on a shaft portion 30a extending in the horizontal direction. The opening / closing oscillating body 30b is pivotally supported, and the oscillating device 30c is used to oscillate the opening / closing oscillating body 30b. The swinging portions 30 and 31 of this embodiment are opened and closed by the swinging devices 30c and 31c so that the suction surfaces 32c and 33c of the holding portions 32 and 33 described later are directed outward. The posture can be switched between the posture and the posture facing each other.

  The shaft portion 30a is rotatably disposed above the frame body 101, and extends in the left-right direction of the machine body (the direction of the arrow Z in FIG. 2). The opening / closing oscillating body 30 b is fixed to the shaft portion 30 a at the upper edge, and is pivotally supported by the frame body 101 so as to be able to oscillate. The opening / closing oscillating body 30b is configured by a plurality of frame members being bridged between a pair of planar members in a side view, and the above-described guide roller 42, holding portion 32, and cutting portion 34 are provided.

  The swing device 30c is configured as a cylinder device that moves the swing rod 30d back and forth in a linear direction, and is disposed at a position above the frame body 101 and at a position behind the opening / closing swing body 30b. The swing rod 30d has a protruding end connected to the opening / closing swing body 30b and the other end connected to a piston provided in the cylinder, and is moved forward and backward by reciprocating the piston in the cylinder.

  The open / close oscillating body 30b is closed so that the oscillating rod 30d of the oscillating device 30c is moved in the shortening direction so that the oscillating body 30b is oscillated downward and the lower edge portion is directed substantially vertically downward. On the other hand, the open / close oscillating body 30b is opened so that the oscillating rod 30d is moved in the extending direction, so that the oscillating rod 30d is oscillated upward and the lower edge portion is directed outward (obliquely forward direction).

  The swinging portion 31 is configured in the same shape as the swinging portion 30 described above, and an opening / closing swinging body 31b is fixed to a shaft portion 31a rotatably disposed at a lower position of the frame body 101 at a lower edge portion. As a result, the opening / closing oscillating body 31 b can oscillate with respect to the frame body 101. The open / close oscillating body 31b is operated to close so that the oscillating rod 31d of the oscillating device 31c is moved in the shortening direction so that the oscillating rod 31d is oscillated upward and the upper edge portion is directed substantially vertically upward. On the other hand, when the swinging rod 31d is moved in the extending direction, the swinging rod 31d is swung downward, and the opening operation is performed so that the upper edge portion faces the outer side (the obliquely forward direction) (see FIG. 6).

  In the splicing device 11 of this embodiment, the opening and closing oscillating bodies 30b and 31b are closed by the oscillating portions 30 and 31, and the starting ends of the current packaging material 1 and the preliminary packaging material 2 are moved by the holding portions 32 and 33. At the same time, the cutting portion 34 cuts the surplus portion of the current packaging material 1. Further, the start end of the preliminary packaging material 2 is attached to the holding portion 33 in a state where the opening / closing swing body 31 b is opened by the swing portion 31. The method of splicing the preliminary packaging material 2 to the current packaging material 1 in the splicing device 11 will be described in detail later (see FIGS. 7 to 10).

  As shown in FIGS. 3 and 4, the holding unit 32 includes a suction bar 32 a that can hold the preliminary packaging material 2 by vacuum suction, a suction bar moving device 32 b that opens and closes the suction bar 32 a, and the like. Yes. The holding portions 32 and 33 of the present embodiment are disposed on the corresponding swinging portions 30 and 31, respectively, and the suction bars 32a and 33a are on substantially the same plane in a state where the opening and closing swinging members 30b and 31b are closed. In addition, the suction surfaces 32c and 33c are disposed so as to face each other.

  The suction bar 32a is composed of a rectangular member extending in the left-right direction (the arrow Z direction in FIG. 2), and the suction surface 32c of the preliminary packaging material 2 is formed on one side surface. A plurality of suction ribs 32d, 32d,... Each having a suction port are provided on the suction surface 32c. The suction rib 32d is formed in a columnar or conical shape, and is configured as a suction pad having a suction port formed in the center. The suction rib is discharged by discharging the air in the suction port by a suction device (not shown). Negative pressure attracting force is generated at 32d, 32d.

  The suction bar moving device 32b is configured as a cylinder device that moves the operating rod 32e extended in a rod shape in a linear direction, and the suction bar 32a is attached to the projecting ends of the operating rod 32e and the guide rod 32f. . The operation rod 32e is connected to a piston provided in a cylinder (not shown), and is moved forward and backward by reciprocating the piston in the cylinder. The suction bar 32a is opened and closed in a linear direction in conjunction with the forward and backward movement of the operating rod 32e. The guide rod 32f is moved following the advance and retreat of the operating rod 32e.

  The suction bar 32a is moved in a direction (upward) away from the other suction bar 33a and opened by moving the operating rod 32e of the suction bar moving device 32b in the shortening direction. On the other hand, when the operating rod 32e is moved in the extending direction, the suction bar 32a is moved in a direction (downward) close to the other opposite suction bar 33a and is closed.

  The holding portion 33 is configured in the same shape as the holding portion 32 described above, and the operation rod 33e of the suction bar moving device 33b is moved in the shortening direction, so that the suction bar 33a moves away from the other suction bar 32a facing the holding bar 33a. Moves downward (downward) and opens. On the other hand, when the operating rod 33e is moved in the extending direction, the suction bar 33a is moved in a direction (upward direction) close to the other suction bar 32a that is opposed to the operation bar 33e and is closed.

  The holding portions 32 and 33 according to the present embodiment are disposed at a distance between the suction bars 32a and 33a when the suction bars 32a and 33a are closed in a state where the opening / closing oscillators 30b and 31b are closed. The leading ends of the packaging material 1 and the preliminary packaging material 2 are sandwiched by the suction bars 32a and 33a (the suction surfaces 32c and 33c) from the front and back sides, and the leading end of the preliminary packaging material 2 is pressed and connected to the current packaging material 1. (See FIG. 8 etc.).

  As shown in FIG. 3 and FIG. 5, the cutting part 34 is disposed upstream of the holding part 32 in the feeding direction (front of the machine body), and is a clamping member that clamps the current packaging material 1 from the front and back directions. A pair of sandwiching bars 34a and 34b, a cutting blade 34e inserted into the slits 34c and 34d formed in the sandwiching bars 34a and 34b so as to be movable in a linear direction, and the one sandwiching bar 34b and the cutting blade 34e are opened and closed. It is comprised with the cutting blade moving apparatus 34f etc. which operate | move. The cutting portions 34 and 35 of the present embodiment are disposed on the corresponding swinging portions 30 and 31, respectively, and are disposed on substantially the same plane with the open / close swinging members 30b and 31b being closed.

  The sandwiching bars 34a and 34b are formed of a rectangular member extending in the left-right direction (the arrow Z direction in FIG. 2), and are disposed in a state where the sandwiching surfaces are opposed to each other with a predetermined separation. Has been. In the splicing device 11 of the present embodiment, the current packaging material 1 fed out from the current packaging material 1 is inserted into the gap between the sandwiching bars 34a and 34b. Slit portions 34c and 34d extend along the left-right direction (the direction of arrow Z in FIG. 2) at the center of the sandwiching bars 34a and 34b.

  The sandwiching bar 34a is fixed to the open / close oscillating body 30b so that the relative position cannot be changed, and the other sandwiching bar 34b is connected to a support member 34g disposed at an upper position via a connection member 34h to move the cutting blade. The device 34f can move together with the support member 34g. The connecting member 34h is inserted into the spring coil, and can be expanded and contracted with a biasing force in the axial direction.

  The cutting blade 34e is a plate-like member in plan view, and has a substantially saw blade-like cutting edge for cutting the packaging material at the tip, and is inserted into the slit portion 34d of the holding bar 34b. The cutting blade 34e is fixed to the support member 34g described above, and can be moved integrally with the support member 34g by the cutting blade moving device 34f.

  The cutting blade moving device 34f is configured as a cylinder device that moves the moving rod 34i forward and backward in a linear direction, and a support member 34g is attached to the protruding ends of the moving rod 34i and the guide rod 34j. The moving rod 34i is connected to a piston provided in a cylinder (not shown), and is moved forward and backward by reciprocating the piston in the cylinder. The sandwiching bar 34b and the cutting blade 34e are reciprocated in the linear direction in conjunction with the forward and backward movement of the moving rod 34i. Further, the guide rod 34j is moved following the movement of the moving rod 34i.

  When the moving rod 34i of the cutting blade moving device 34f is moved in the shortening direction, the sandwiching bars 34a and 34b of the present embodiment are moved and moved in a direction away from the sandwiching bar 34a. In the opened state, the sandwiching bars 34a and 34b are stopped with a predetermined separation, and the current packaging material 1 fed from the current packaging material roll R1 is inserted into the separation. In this state, the cutting blade 34e is stopped in a state where the cutting edge is accommodated in the slit portion 34d of the holding bar 34b.

  On the other hand, when the moving rod 34i is moved in the extending direction, the sandwiching bars 34a and 34b are moved in the direction in which the sandwiching bar 34b is close to the sandwiching bar 34a and are closed. When the closing operation is performed, the sandwiching bar 34b and the cutting blade 34e are linearly moved together, and are first moved until the sandwiching bar 34b comes into contact with the sandwiching surface of the sandwiching bar 34a. In such a state, the relative position of the cutting blade 34e with respect to the sandwiching bar 34b does not vary, and the blade tip remains positioned inside the slit portion 34d of the sandwiching bar 34b. The current packaging material 1 inserted in the space between the sandwiching bars 34a and 34b is sandwiched by the sandwiching bars 34a and 34b from the front and back surfaces.

  When the moving rod 34i is further extended, the clamping bar 34b is pressed against the clamping bar 34a and the connecting member 34h is compressed. As a result, the cutting blade 34e is moved relative to the clamping bar 34b and the clamping bar 34b is moved. The cutting edge protrudes from the clamping surface and is moved into the slit portion 34c of the clamping bar 34a. In this manner, the current packaging material 1 sandwiched by the sandwiching bars 34a and 34b from the front and back directions is cut by the cutting blade 34e.

Next, a method for splicing the preliminary packaging material 2 by the splicing device 11 will be described in detail below.
As shown in FIGS. 6 to 10, in the splicing device 11 configured as described above, first, the start end of the preliminary packaging material 2 fed from the preliminary packaging material roll R <b> 2 is adsorbed by the adsorption bar 33 a of the holding portion 33. Attached to the surface 33c, in a state where the starting end of the preliminary packaging material 2 is vacuum-adsorbed to the holding portion 33, the holding portions 32 and 33 are moved to press and connect the starting end of the preliminary packaging material 2 to the current packaging material 1. The cutting portion 34 is configured to cut the surplus portion of the current packaging material 1 to which the starting end of the preliminary packaging material 2 is connected.

  First, the attachment method of the pre-packaging material 2 to the holding part 33 is that the suction bar 33a is closed and the opening / closing oscillating body 31b is opened so that the suction surface 33c of the suction bar 33a of the holding part 33 is opened. Is switched to a posture in the outward direction (see FIG. 6). The preliminary packaging material 2 fed from the preliminary packaging material roll R2 is inserted into the holding bars 35a and 35b while being in contact with the guide roll 49, and the starting end of the preliminary packaging material 2 is brought into contact with the suction surface 33c of the suction bar 33a. Abutted.

  Here, in the splicing device 11 of the present embodiment, a double-sided tape (not shown) is applied in advance to one plane at the starting end of the preliminary packaging material 2, and the plane opposite to the plane on which the double-sided tape is applied. (Suction surface) is brought into contact with the suction surface 33c. Then, with the starting end of the preliminary packaging material 2 in pressure contact with the suction ribs 33d, 33d,... Of the suction surface 33c, a negative pressure suction force is generated on the suction ribs 33d, 33d,. As a result, the preliminary packaging material 2 is vacuum-adsorbed (negative pressure adsorption) to the adsorption ribs 33 d, 33 d... Of the adsorption bar 33 a, and the starting end of the preliminary packaging material 2 is attached to the holding unit 33. When the operation of attaching the pre-packaging material 2 to the holding portion 33 is completed, the opening / closing swing body 31b is closed.

  The splicing device 11 of the present embodiment is configured to be able to continuously supply the preliminary packaging material 2 without stopping the automatic packaging machine 100, and automatically when the remaining amount of the current packaging material roll R1 becomes a predetermined amount or less. The splicing device 11 is activated. In the state in which the support shaft 20 is driven by the feeding device 10 and the current packaging material 1 is fed from the current packaging material roll R1, the splicing device 11 has the opening / closing oscillators 30b and 31b closed, and the suction bar described above. Both 32a * 33a and the clamping bars 34b * 35b are opened (see FIG. 7). The current packaging material 1 fed from the current packaging material roll R1 is inserted into the holding bars 34a and 34b while being in contact with the guide roll 42, and is sent downstream in the conveying direction R.

  When the remaining amount of the current packaging material roll R1 becomes equal to or less than a predetermined amount, the splicing device 11 is operated, and first, the suction bar moving devices 32b and 33b are operated by the holding portions 32 and 33, and the suction bars 32a and 33a are moved. The working packaging material 1 which is closed and sent to the downstream side in the transport direction R through the separation of the suction bars 32a and 33a and the starting end of the preliminary packaging material 2 vacuum-sucked by the suction bar 33a are sucked from the front and back directions. It is overlapped and sandwiched by the bars 32a and 33a (see FIG. 8). At this time, the starting end of the preliminary packaging material 2 is pressed against the current packaging material 1 by the suction surfaces 32c and 33c of the suction bars 32a and 33a, and the current packaging material 1 is applied with a double-sided tape affixed to the starting end of the preliminary packaging material 2. And the starting end of the preliminary packaging material 2 are connected.

  Simultaneously with the above-described closing operation of the suction bars 32a and 33a, the cutting blade moving device 34f is operated by the cutting unit 34 to close the holding bar 34b, and the working is inserted into the holding bars 34a and 34b. The packaging material 1 is clamped by the clamping bars 34a and 34b from the front and back surfaces (see FIG. 9). When the cutting blade moving device 34f is further operated in a state where the current packaging material 1 is sandwiched between the sandwiching bars 34a and 34b, the cutting blade 34e is relatively moved with respect to the sandwiching bar 34b, and the preliminary packaging material 2 Only the surplus portion of the current packaging material 1 to which the starting end is connected is cut (see FIG. 9).

  When the surplus portion of the current packaging material 1 is cut by the cutting unit 34, the suction bar moving devices 32b and 33b are operated by the holding units 32 and 33 to open the suction bars 32a and 33a, and the cutting is performed. In the section 34, the cutting blade moving device 34f is operated to open the clamping bar 34b (see FIG. 10). When the splicing operation of the preliminary packaging material 2 is completed in this way, the support shaft 21 is driven by the feeding device 10 to feed the preliminary packaging material 2 from the preliminary packaging material roll R2, and the current packaging material 1 Instead, it is sent downstream in the transport direction R.

  If the current packaging material 1 is clamped by the suction bars 32a and 33a and the clamping bars 34a and 34b while the above-described splicing operation of the splicing device 11 is performed, the feeding amount relative to the feeding amount of the current packaging material 1 is insufficient. However, when the dancer roller 24 constituting the above-described feeding device 10 moves up and down, the shortage of the amount of the current packaging material 1 on the conveyance path R is adjusted.

  As described above, the splicing device 11 according to the present embodiment is disposed at a vertically opposed position in the splicing device 11 of the automatic packaging machine 100 that continuously superimposes the current packaging material 1 and the starting end of the preliminary packaging material 2. A pair of oscillating portions 30 and 31 that can oscillate in the outward direction, and disposed at the oscillating portions 30 and 31 and arranged in a vertically opposed position across the current packaging material 1 fed from the current packaging material roll R1. A pair of holding portions 32 and 33 provided, and a pair of cutting portions 34 and 33 disposed at the swinging portions 30 and 31 and disposed at the upper and lower opposing positions upstream of the holding portions 32 and 33 in the feeding direction. 35, and with the starting end of the preliminary packaging material 2 fed from the preliminary packaging material roll R2 being vacuum-adsorbed to one holding portion 33, the holding portions 32 and 33 are moved to move the current packaging material. Connect the first end of the pre-packaging material 2 by pressing it to 1 Since the cutting portion 34 cuts the surplus portion of the current packaging material 1 to which the starting end of the preliminary packaging material 2 is connected, the apparatus configuration is reduced in size and the workability of attaching the preliminary packaging material 2 is improved. be able to.

  That is, in the splicing device 11 according to the present embodiment, the pair of swinging portions 30 and 31 that can swing toward the outer side, the pair of holding portions 32 and 33 disposed at the vertically opposed positions, and the pair of cutting portions. 34 and 35 are respectively disposed, the splicing device 11 can be disposed in the middle of the conveying path R of the current packaging material 1 extending along the horizontal direction, and the preliminary packaging material roll is provided in the holding portion 33. When attaching the starting end of the preliminary packaging material 2 fed out from R2, it is only necessary to pass the separation of the pair of holding portions 32 and 33 while pulling out the preliminary packaging material 2 horizontally, and the swinging portions 30 and 31 are outside. Since it is swung in the direction, it is easy to attach the preliminary packaging material 2 to the holding portions 32 and 33, and the accuracy of attaching the preliminary packaging material 2 can be improved. Further, in the splicing device 11 of the present embodiment, the holding portions 32 and 33 and the cutting portions 34 and 35 are only disposed on the swinging portions 30 and 31, respectively, so that the configuration of the swinging portions 30 and 31 can be reduced in size. The work space for attaching the preliminary packaging material 2 can be reduced.

  In particular, in the splicing device 11 of the present embodiment, the swinging portions 30 and 31 are opened and closed swinging bodies 30b and 31b that are pivotally supported by shaft portions 30a and 31a extending in the horizontal direction so as to be able to open and close in the vertical direction. Therefore, when the preliminary packaging material 2 is attached, the open / close oscillating bodies 30b and 31b may be oscillated in the vertical direction along the shaft portions 30a and 31a, and the working space can be further reduced. In addition, since the swinging portions 30 and 31 can be switched between a posture in which the suction surfaces 32c and 33c of the holding portions 32 and 33 are directed outward and a posture in which they face each other. By switching when attaching 2 and orienting the suction surfaces 32c and 33c in the outward direction, the workability and attachment accuracy of such attachment work can be further improved.

  Further, in the splicing device 11 of the present embodiment, the holding portions 32 and 33 have a plurality of suction ribs 32d and 33d having suction ports formed on the suction surfaces 32c and 33c. The suction surfaces 32c and 33c can be reliably held without being generated or tilted, and the workability of the mounting operation of the preliminary packaging material 2 can be further improved.

  Further, in the splicing device 11 of the present embodiment, the cutting portions 34 and 35 are sandwiched between the working packaging material 1 from the front and back directions, the sandwiching bars 34a and 35a and the sandwiching bars 34b and 35b, the sandwiching bars 34a and 35a, The slits 34c and 35c formed in the clamping bars 34b and 35b, and the cutting blades 34e and 35e inserted into the slits 34d and 35d so as to be movable in the linear direction are provided. Since the surplus portion of the current packaging material 1 is cut by the cutting blade 34e in a state where the current packaging material 1 is sandwiched between the bar 34a and the sandwiching bar 34b, the cutting of the current packaging material 1 when cutting with the cutting blade 34e. Can be prevented, and the current packaging material 1 can be cut reliably.

  In addition, as a structure of the splicing apparatus 11, it is not limited to the Example mentioned above, A various change is possible unless it deviates from the objective of this invention.

  That is, in the splicing device 11 of the above-described embodiment, the current packaging material roll R1 is supported on the support shaft 20 at the upper part of the automatic packaging machine 100, and the preliminary packaging material roll R2 is supported on the support shaft 21 at the lower part of the machine body. However, since the oscillating parts 30 and 31, the holding parts 32 and 33, and the cutting parts 34 and 35 are formed substantially the same and are respectively disposed in the vertically opposed positions, the current packaging material 1 and the preliminary packaging material For example, the preliminary packaging material 2 may be supported on the support shaft 20, and the current packaging material 1 may be supported on the support shaft 21.

  In such a case, unlike the embodiment described above, the start end of the preliminary packaging material 2 is attached to the holding portion 32 in a state where the opening / closing oscillating body 30b is opened by the oscillating portion 30, and at the cutting portion 35 The surplus portion of the current packaging material 1 is cut. Thus, in the splicing device 11 of the above-described embodiment, the present packaging material 1 and the preliminary packaging material 2 are not limited to the arrangement configuration, and therefore, by sequentially supplying the preliminary packaging material 2 to the support shaft 20 or the support shaft 21, The automatic packaging machine 100 can be operated continuously for a long time.

  Further, in the splicing device 11 of the above-described embodiment, a double-sided tape is applied in advance to one plane of the starting end of the preliminary packaging material 2, and the active packaging material 1 and the starting end of the preliminary packaging material 2 are connected by the adhesive of the double-sided tape. However, the connection method is not limited to this, and for example, the current packaging material 1 and the preliminary packaging material 2 may be directly welded to each other. In such a case, a contact-type heat welding heater or the like is provided on the holding portions 32 and 33 as heat welding means.

DESCRIPTION OF SYMBOLS 1 Current packaging material 2 Preliminary packaging material 10 Feeding apparatus 11 Joint apparatus 30 * 31 Oscillating part 30a * 31a Shaft part 30b * 31b Opening / closing oscillator 30c * 31c Oscillating apparatus 30d * 31d Oscillating rod 32 * 33 Holding part 32a * 33a Suction bar 32b / 33b Suction bar moving device 32c / 33c Suction surface 32d / 33d Suction rib 32e / 33e Actuating rod 34/35 Cutting part 34a / 35a Holding bar 34b / 35b Holding bar 34c / 35c Slit part 34d / 35d Slit part 34e / 35e Cutting blade 34f / 35f Cutting blade moving device 34g / 35g Support member 34h / 35h Connecting member 34i / 35i Moving rod 100 Automatic packaging machine 101 Frame body R1 Current packaging material roll R2 Preliminary packaging material roll

Claims (4)

In the automatic wrapping machine splicing device in which the current packaging material and the starting edge of the preliminary packaging material overlap and continue,
A pair of oscillating portions that are disposed at vertically opposed positions and are capable of oscillating in an outward direction;
The pair of swinging portions have suction bars that are arranged at positions facing each other in the vertical direction that sandwich the current packaging material fed from the current packaging material roll, and that can move in the direction in which the suction surfaces that hold the starting end of the preliminary packaging material are brought close to each other. A pair of holding parts,
A pair of sandwiching bars that are disposed on the pair of swinging portions at positions opposite to each other on the upstream side in the feeding direction with respect to the pair of holding portions, and capable of sandwiching the current packaging material from the front and back directions, and the pair of sandwiching bars A pair of cutting parts having a cutting blade inserted into the slit part formed to be movable in a linear direction ,
In a state where the starting end of the preliminary packaging material fed from the preliminary packaging material roll is vacuum-adsorbed to the suction bar of one holding part, the pair of suction bars are operated and the current packaging material and the spare The top end of the packaging material is overlapped and sandwiched, and the front end of the pre-packaging material is pressed and connected to the current packaging material,
The pair of sandwiching bars are actuated to sandwich the current packaging material from the front and back surfaces with the pair of sandwiching bars, and in this state, the cutting blade is moved relative to the pair of sandwiching bars to form the slit portion. The cutting edge is protruded from the clamping surface via the cutting portion, and the surplus portion of the current packaging material to which the starting end of the preliminary packaging material is connected is cut.
A splicing device for an automatic packaging machine.   2. The joint device for an automatic packaging machine according to claim 1, wherein the swinging portion has an opening / closing swinging body pivotally supported by a shaft portion extending in the horizontal direction so as to be swingable in the vertical direction.   The automatic wrapping machine according to claim 1 or 2, wherein the swinging portion is switchable between a posture in which the suction surface of the holding portion is directed outward and a posture facing each other. Joint device. The splicing device for an automatic packaging machine according to any one of claims 1 to 3, wherein the holding portion includes a plurality of suction ribs each having a suction port formed on a suction surface.

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