JP2019064677A - Mounting structure of making-cylinder unit in making-bag filling packing machine - Google Patents

Abstract

To provide mounting structure of a making-cylinder unit in a vertical making-bag filling packing machine in which mounting cannot be done if the making-cylinder unit of a proper combination is not set, so as to promote human error prevention of mounting.SOLUTION: A key groove 19 which is a first index portion corresponding to an item is formed in a making-cylinder unit which includes a former and a filling cylinder and is assembled on a base plate 12. A fixing member 20 connected to an output shaft of a servomotor 30 of the side of a body frame has a key 22 which is a second index portion. The key 22 and the key groove 19 can only be fitted mutually only in a case where the making-cylinder unit is a proper unit for a packing machine, the making-cylinder unit is mounted to the body frame as making the fixing member 20 intervene in only this fitting state, and error mounting can be avoided. An angle position of the key 22 can be changed by rotation of the servomotor 30 according to the kind of the making-cylinder unit.SELECTED DRAWING: Figure 2

Description

The present invention relates to a form-fill-seal packaging machine, in particular, a vertical form-fill-seal packaging machine, in which a strip-shaped packaging material is curved into a substantially cylindrical shape in order to fabricate a tubular packaging material by curving the strip-shaped packaging material. A main body frame of a packaging unit of a cylinder unit comprising: a filling cylinder which is disposed through the cylinder with a predetermined gap between the former and the cylinder circumferential surface and into which the product to be packaged is introduced through the inside of the cylinder. It relates to the attachment structure.

  Heretofore, as a form-fill-seal machine, for example, a vertical form-fill-seal machine, which is disclosed in Patent Document 1 and schematically shown as an example in FIG. 6 which is a perspective view, is widely used. In the vertical form-fill-seal packaging machine 50 shown in FIG. 6, the strip-like packaging material Fw drawn out from the film roll Fr comprises a dancer roller 60, an adjustment roller 61, a first roller 62, and a guide roller 63 placed in an appropriate place. Then, it is sent to the former 51. In particular, the first roller 62 is a band-shaped packaging material guiding device that determines the feeding posture of the band-shaped packaging material Fw to the former 51. The band-shaped packaging material Fw is bent into a substantially cylindrical shape so that the side edge portions fe and fe are overlapped in a combined shape by the former 51, and is traveled in the longitudinal (up and down or longitudinal) direction. The longitudinal sealing portion Sc is applied to fe and fe by the longitudinal sealing device 54, whereby the tubular packaging material Ft is formed.

  The product S, which is a package, is fed from the hopper 52 to the inside of the cylindrical packaging material Ft through the filling cylinder (usually cylindrical, cylindrical in a special case such as a square cylinder in a special case) 53. The filling cylinder 53 is formed in a cylinder having an inside of the cylinder into which the product S from the hopper 52 is subsequently introduced and a cylinder circumferential surface which is an outer cylindrical surface. The filling cylinder 53 is disposed so as to pass through the former 51 with a predetermined gap between the former and the cylinder circumferential surface. At the left and right sides of the outer periphery of the filling cylinder 53, packaging material feeding devices 56, 56, which are configured by a suction type belt mechanism and sandwich the cylindrical packaging material Ft, are disposed. The band-shaped packaging material Fw curved and formed by the former 51 passes through the gap between the former 51 and the filling cylinder 53, and the cylindrical packaging material Ft formed from the band-shaped packaging material Fw The paper sheet is fed by the wrapping material feeding devices 56, 56 in the surrounding state. A transverse sealing device 55 sandwiches the tubular packaging material Ft from the outside to apply a transverse seal to the tubular packaging material Ft, whereby a bag package Bp formed in advance and in which the product S is packaged is produced. In addition, a horizontal seal portion Se on the bottom side of the bag B into which the product S is to be introduced next is formed.

  The lateral sealing device 55 is disposed below the lower end of the filling cylinder 53 with the cylindrical packaging material Ft interposed therebetween, and includes lateral sealing blocks 55a and 55b that operate to approach and separate from each other. The lateral seal blocks 55a and 55b sandwich the cylindrical packaging material Ft in the transverse direction from the outside when approaching, and form an upper lateral sealer portion that forms a bottom lateral seal part Se for the bag B, and a bag package The lower side sealer portion forming the upper side horizontal seal portion Se of Bp is configured. The product S is put into the inside of the cylindrical packaging material Ft, and the transverse sealing portion Se is applied in the transverse direction by the transverse sealing device 55, whereby the bag package Bp is manufactured.

  The transverse sealing device 55 can further include a cutter device 57 that cuts the cylindrical packaging material Ft in a form that cuts it. In the cutter device 57, cutter blades are disposed between upper and lower horizontal sealers of one horizontal seal block 55a, and a groove into which the cutter blade can be formed is formed in the other horizontal seal block 55b. There is. The two horizontal seal blocks 55a and 55b approach each other and sandwich the packaging material, thereby welding the tubular packaging material Ft in the transverse direction to form the transverse sealing part Se, and at the same time the cutter blade is driven in the advancing direction Cut off the material Ft. At the lower end of the filling cylinder 53, a pair of tension guides for tensioning the cylindrical packaging material Ft outward in the bag width direction is provided so as to extend obliquely downward.

  In the vertical bag-filling and packaging machine 50, the vertical sealing device 54 includes a pair of openable and closable vertical seal blocks 54a and 54b elongated along the direction in which the side edges fe and fe of the strip-shaped packaging material Fw extend. ing. The vertical seal blocks 54a and 54b are heat sealed when sandwiching the both side edge portions fe and fe in the overlapping state when performing the closing operation to form the vertical seal portion Sc, and when performing the opening operation, the open It allows passage of both side edge portions fe, fe through the gap created between the vertical seal blocks 54a, 54b by operation.

  In the vertical form-fill-seal packaging machine 50, the packaging material is intermittently sent in accordance with the packaging operation. Longitudinal sealing device during a short time when the product S is put into the cylindrical packaging material Ft and the feeding of the curved packaging material in which the strip packaging material Fw and the both side edge parts fe and fe are made to approach is stopped. 54 sandwiches both side edge portions fe, fe to form a vertical seal portion Sc in the portion, and a horizontal seal device 55 forms a horizontal seal portion Se to manufacture a bag package Bp. In addition, it is also possible to speed up the feeding of the packaging material by configuring the vertical seal device 54 and the horizontal seal device 55 so as to be capable of box motion operation.

  In the above-described form-fill-seal packaging machine, the former 51, the hopper 52 and the filling cylinder 53 are collectively attached as a form-cassette unit to the main body frame of the vertical form-fill-seal packaging machine. Patent Literatures 1 and 2 disclose an example of a mounting structure of a cylinder unit to a main body frame. As shown in FIG. 7 (part of FIG. 16 shown in Patent Document 2), the cylinder unit 58 for forming the band-shaped packaging material Fw into a cylindrical packaging material Ft has the band-shaped packaging material Fw in a substantially cylindrical shape. It is connected to the lower end of the curvature of the film 51, the hopper 52 for product S input, and the hopper 52 so as to form a continuous input path for the product S, and the packaging material is passed between the former 51 and the cylinder circumferential surface. The filling cylinder 53 which is disposed to pass through with a predetermined gap to be made possible is unitized.

  The cylinder unit 58 is collectively attached to the main body frame 70 of the vertical form-fill-seal packaging machine 50 so as to be removable. Specifically, the base plate 72 is disposed to be superimposed on the upper surface of the upper frame horizontal portions 71 and 71 of the main body frame 70, and the filling cylinder 53 is formed through the notch 73 formed to open to the front side in the base plate 72. Are arranged vertically through. A pair of left and right columns 74, 74 are provided upright on the base plate 72, and the hoppers 54 are held by the columns 74, 74 via brackets 75, 75 attached to the upper ends thereof. At the rear portion of the base plate 72, a sailor rear portion of the former 51 is supported in a cantilever manner via a mounting plate 76. The former 51 and the filling cylinder 53 have a predetermined form with respect to the filling cylinder 53 so that the curved band-like packaging material Fw guided by the former 51 can pass between the former 51 and the outer periphery of the filling cylinder 53. It is pre-assembled on the base plate 72 in a manner to be in an arrangement surrounding the gap. The cylinder unit 58 is attached to the main body frame 70 so as to be removable in a batch, by attaching the cylinder unit 58 to the upper frame horizontal portions 71 and 71 so as to overlap the base plate 72 assembled in advance.

  FIG. 8 (corresponding to FIG. 10 shown in Patent Document 1) is a view schematically showing an example of the attachment structure of the base plate to the main body frame. For the convenience of illustration, as for the reference numerals, components shown in FIG. 7 are used as components having the same functions. As shown in FIG. 8, two mounting grooves 77, 77 are formed in the base plate 72 at predetermined positions in left-right symmetry, and the two mounting grooves 77, 77 are formed in the upper frame horizontal portion 71, 71. Screw holes or mounting holes are formed corresponding to 77. The cylinder unit 58 assembled on the base plate 72 is fixed at a predetermined position relative to the upper frame horizontal portions 71 and 71 of the main body frame 70 by tightening the screw 78 in the screw hole or tightening the nut through the mounting bolt in the through hole. It is attached collectively.

  By the way, when the product (item) to be packaged is changed, usually the packaging specification such as thickness, width size or sealing barrier property required for the bag is different, so the packaging material used for packaging is also Types (materials) and width dimensions will be different. Since the former and the filling cylinder will be different according to the change of the packaging material, it is necessary to prepare one corresponding to the item as a cylinder unit to be assembled to the packaging machine. On the other hand, with regard to the packaging machine main body other than the cylinder unit, various devices provided in the main body, that is, each device such as a vertical sealing device, a horizontal sealing device, a packaging material feeding device, and a strip packaging material guiding device to the cylinder unit There is some flexibility in that it can be used for different cylinder units by mechanically adjusting the mounting position or adjusting the timing and operating range in the packaging operation by software. That is, for these various devices, there may be a plurality of tube forming units that can be adapted by mechanical or software adjustment while using the same device. Therefore, for the packaging machine main body, it is necessary to select and attach, from among a plurality of compatible cylinder units, a cylinder unit properly corresponding to the packaging specification used for actual packaging. If a cylinder unit that is compatible with the packaging machine body but is incorrect for a product (item) is attached to the packaging machine body, a number of bag packages that are defective will be manufactured. In addition, it is necessary to replace the wrong cylinder unit with the correct cylinder unit, and the working efficiency and operating efficiency of the packaging machine are significantly reduced.

  Patent Document 2 discloses that mounting errors of a packaging material or a former are prevented by inactivating the packaging machine when the mounted packaging material or the former is incompatible. That is, when the item is designated by inputting the reading number of the package or the barcode attached to the packaging material by the input unit, the readout unit reads out the data on the packaging material or the former of the designated item from the storage unit Judgment means collates the received data with the output data from the attachment data output means to judge the propriety of the loaded packaging material or former, and if the judgment result is nonconformity, the packing machine is not passed through the control means In operation, it is configured to prevent the production of defective products. Further, the base plate fixed detachably to the upper frame horizontal portion of the main body frame via the clamp mechanism is provided with a binary-coded identification element by a plurality of small holes. The presence or absence of the identification element is optically detected by the upper frame horizontal portion (not shown), and the size of the former and the former number are output to the input / output interface, and the attached packaging material and former are designated. It is determined whether the product conforms to the

  Further, in Patent Document 3, the type of the former is physically detected, and the detection result is displayed at an appropriate position where the confirmation operation is easy, so that the loss of the packaging occurs due to the confirmation of the size and the type of the former. Discloses a discrimination device for preventing the More specifically, in a packaging machine having a holder for detachably supporting the mounting portion of the former, and the type of the former attached to the holder being exchangeable, the former discrimination device comprises a holder for the mounting portion of the former. The detection means is provided with identification means for identifying the type, and the holder is provided with detection means for transmitting a desired signal corresponding to the type of the former by contact or approach with the identification means of the former, the detection means according to the signal The display means for displaying the type of the former is connected.

  Although the methods disclosed in the above-mentioned patent documents show measures for avoiding incorrect attachment of components in the packaging machine, the arrangement of the detection means such as a large number of sensors or the signal from the detection means is displayed. It requires complex circuits or software to process or process, and as a result, the sensor configuration and control related configuration of the packaging machine become large, resulting in an increase in manufacturing cost and a complication of input operation.

Japanese Patent Laid-Open No. 2000-033907 JP 06-032325 A Japanese Utility Model No. 02-23304

  Therefore, it is formed in a former that bends the band-shaped packaging material in a substantially cylindrical shape, and a cylinder having the inside of the cylinder and the cylinder circumferential surface, and a predetermined clearance is left between the former and the cylinder circumferential surface. A band-shaped packaging material which has been disposed and has passed through a gap is formed into a tubular packaging material and is fed in a state of wrapping around the circumferential surface of the cylinder, and provided with a filling cylinder into which a product to be packaged is introduced through the inside of the cylinder. In the form-fill-seal packaging machine in which the production cylinder unit is attached to the main body frame of the packaging machine, by allowing the attachment of the production cylinder unit to the main body frame only in the proper combination between the production cylinder unit and the main body frame There is a problem to be solved in that the tube making unit is attached to the packaging machine in the wrong combination.

  The object of the present invention is to solve the above-mentioned problems, and in the form-fill-seal packaging machine, the structure can be simplified and the manufacturing cost is low by making it impossible to install unless the tube unit of the proper combination is set It is an object of the present invention to provide a mounting structure of a cylinder unit in a vertical form-fill-seal packaging machine capable of preventing human error in mounting.

  In order to solve the above-mentioned problems, the mounting structure of the cylinder unit in the bag filling and packing machine according to the present invention bends and shapes the band-shaped packaging material to produce a cylindrical packaging material. And a cylindrical body having a cylinder inner surface and a cylinder peripheral surface, and the through member is disposed to pass through the clearance with a predetermined gap between the former and the cylinder peripheral surface. A cylinder unit comprising: a packing tube formed into the cylindrical packaging material and fed by paper around the cylinder circumferential surface; and a product to be packaged is fed through the inside of the cylinder In the form-fill-seal packaging machine attached to the main body frame of the packaging machine, the tube forming unit is unique to the tube forming unit corresponding to the combination of the former and the filling tube for packaging of the product to be packaged. In the main body portion, a fixing member having an index portion and having a main body portion attachable to the main body frame and a second index portion integrally provided to the main body portion is attached to the main body frame The second indicator unit can be fitted with the first indicator unit only when the cylinder unit is a cylinder unit appropriate for packaging of the product to be packaged, the cylinder unit The first and second indicators are attachable to the main body frame via the fixing member only when the first indicator and the second indicator are in the fitting state.

  According to the mounting structure of the cylinder unit in the bag filling and packaging machine, the first indicator unit unique to the cylinder unit corresponding to the combination of the former and the filling cylinder for packaging of the product to be packaged by the cylinder unit The fixing member attached to the main body frame in the main body portion has a second index portion corresponding to the combination of the former of the cylinder unit and the filling cylinder. The second index portion of the fixing member can be fitted with the first index portion only when the tube unit to be attached to the packaging machine body is a tube unit suitable for packaging of the product to be packaged. The cylinder unit is attached to the main body frame via the fixing member only when the first index portion and the second index portion are fitted to each other. If the cylinder unit is an improper unit for packaging the product to be packaged, the first indicator of the cylinder unit and the second indicator of the fixing member do not fit together, so such a wrong cylinder The unit is not attached to the body frame via the fixing member. Therefore, it is not possible to erroneously attach the wrong cylinder unit to the packaging machine body for the packaging of the product to be packaged.

  In the mounting structure of the cylinder unit in the bag filling and packing machine, the fitting relationship between the first index portion of the cylinder unit and the second index portion of the fixing member is asperity fitting. can do. If the tube unit to be attached is a tube unit suitable for packaging of the product to be packaged if it can be fitted to the concavo-convex fit, and if it can not be fitted to the concavo-convex fit, the tube unit to be fitted Is a cylinder unit not suitable for packaging machines. By confirming the concavo-convex fitting of both index parts, it can be easily confirmed whether it is appropriate as a cylinder unit to be attached to the main body of the packaging machine.

  In the mounting structure of the cylinder unit in the bag filling and packing machine, the main body portion of the fixing member is formed as a cylindrical body rotatable with respect to the main body frame, and the second index portion of the fixing member is It is a non-cylindrical portion integrally formed with the cylindrical body, and the fixing member is made of a plurality of types of cylinders by changing the position at which the main body portion is rotated relative to the main body frame to stop rotation. The rotation stop position of the second indicator portion can be set to be different for each of the cylinder units while being commonly used for the unit. By forming the main body portion of the fixing member as a rotatable cylindrical body with respect to the main body frame, the main body portion is rotated relative to the main body frame, and the rotation stop position is changed according to each cylinder unit. The rotation stop position of the second indicator can be made different for each of the cylinder units, and one fixing member can be commonly used for a plurality of cylinder units.

  In the mounting structure of the cylinder unit in the bag filling and packaging machine, the main body of the fixing member is a servomotor whose rotational output is controlled in multiple stages, or an electromagnetic actuator or an air actuator whose output is in multistage operation. It can be assumed that the position at which the rotation is stopped can be changed in multiple stages according to the tube making unit. In the case of a servomotor, the rotation of the output rotary shaft can be used for the rotation of the main body. Further, in the case of an electromagnetic actuator or air actuator operating in multiple stages, the output of the actuator can be converted into rotational operation and transmitted to the main body of the fixing member.

  In the mounting structure of the cylinder unit in the bag filling and packing machine, the second index portion of the fixing member protrudes radially from the circumferential surface of the cylindrical body and extends parallel to the generatrix direction of the cylindrical body. It is a formed key, and the first index portion of the cylinder unit is a key groove formed parallel to the generatrix direction of the cylindrical body and into which the key can be fitted. Can. The key and the key groove have a structure that is easy to form as a concavo-convex fit and has high reliability at the time of fitting. In addition, the fitting operation of the key and the key groove is also easy and reliable by axial movement.

  In the mounting structure of the cylinder unit in the bag filling and packaging machine, the fixing member can be moved in the vertical direction by the switch operation, and the cylinder unit can be moved by the downward movement. If the key which is the second indicator portion of the fixing member can be fitted into the key groove which is the first indicator portion of the cylinder unit only when the cylinder unit is appropriate for packaging can do. By moving the fixing member in the vertical direction by the switch operation, in the case of the moving operation downward, the fixing member only when the forming unit is a proper forming unit for packaging of the product to be packaged. It becomes easy to fit the key which is the second index part of the above into the key groove which is the first index part of the cylinder unit.

  In the mounting structure of the cylinder unit in the bag filling and packing machine, the cylinder unit is assembled on a base plate stacked and placed on the main body frame, and an upper portion of the cylindrical body is provided from a circumferential surface of the cylindrical body. The head unit is provided so as to project outward, and the cylinder unit is held by the cylinder unit being sandwiched between the head unit and the main body frame by the downward movement operation of the fixing member. It is locked with respect to the said main body frame, and the said lock of the said cylinder unit can be cancelled | released by the moving operation | movement to the upper direction of the said fixing member. By assembling the cylinder unit on the horizontal plate stacked on the main body frame, the assembly of the former and the filling cylinder can be collectively attached to the main body frame by moving the horizontal plate. By providing the head portion in the main body portion, locking and unlocking of the horizontal plate with respect to the main body frame can be performed with a simple structure and operation.

  In the mounting structure of the cylinder unit in the bag filling and packing machine, the horizontal plate is formed with a mounting groove opened to the outside in the front-rear direction corresponding to the position where the fixing member is mounted to the main body frame. The fixing member is relatively moved in the mounting groove by moving the horizontal plate in the back and forth direction in a state where the lock of the cylinder unit is released by the upward moving operation of the fixing member. By moving, the cylinder unit can be pushed or pulled out of the set position with respect to the main body frame. By forming a mounting groove that opens in the longitudinal direction in the structure of the horizontal plate, a simple operation of moving the horizontal plate in the longitudinal direction pushes the cylinder unit to the set position to the main body frame or pulls it out from the set position It can be performed.

  In the mounting structure of the cylinder unit in the bag filling and packaging machine, a sensor for detecting an amount of movement of the fixing member in the vertical direction is provided, and the cylinder unit is the main body frame according to the detection output of the sensor. It can be determined whether or not it is properly set. By providing a sensor that detects the amount of movement of the fixing member in the vertical direction, even if it is difficult to visually check the set of the cylinder unit, it is easily confirmed whether the set is a proper set by the detection output of the sensor be able to.

  In the mounting structure of the cylinder unit in the bag filling and packing machine, the bag filling and packing machine has a longitudinal seal on the side edge portion of the beltlike packing material in order to form the beltlike packing material into the cylindrical packing material. A longitudinal sealing device to be applied, a transverse sealing device for transversely sealing the tubular packaging material in a transverse direction, a ribbon-shaped packaging material guiding apparatus for guiding the feeding of the ribbon-shaped packaging material to the cylinder unit, and cooperation with the filling cylinder The apparatus further comprises a packaging material feeding device for feeding the cylindrical packaging material, and a bag package in which a product is introduced into the bag formed in advance while forming the bag from the cylindrical packaging material is continuous. It can be said that it is a vertical form-fill-seal machine to be manufactured.

The mounting structure of the production unit in the bag filling and packaging machine according to the present invention is configured as described above, so the production unit is limited to the case where the production unit is a proper production unit for the product to be packaged. The first index portion provided on the cylinder unit side and the second index portion provided on the fixing member on the main body frame can be fitted to each other, and only in this case, the appropriate cylinder unit is fixed It is attachable to the main body frame through the member. If the tube making unit is a tube making unit improper for packaging of the product to be packaged, the first indicator portion and the second indicator portion do not fit with each other, and thus the improper tube making unit is It can not be attached to the body frame via the fixing member. Therefore, the incorrect cylinder unit is not mistakenly attached to the packaging machine main body.
As described above, according to the mounting structure of the cylinder unit in the present bag filling and packaging machine, the cylinder unit can be used unless the cylinder unit of the proper combination of the former and the filling cylinder is set for packaging of the product to be packaged. Since it can not be attached to the main body frame, even if there are a plurality of tube units compatible with the same packaging machine body, incorrect attachment of the tube unit to the packaging machine body, ie, packaging It is possible to avoid human error in attaching the wrong type tube making unit to the body frame for product packaging.
In addition, since one index unit is provided on the cylinder unit side and the other indicator unit is provided on the fixing member attached to the main body frame on the main body frame side, the cylinder unit of the vertical type bag filling and packaging machine It is possible to provide a tube unit attachment structure for preventing erroneous attachment at the time of attachment, with a simple configuration and at low manufacturing cost.

FIG. 1 is a view showing an embodiment of a mounting structure of a tube making unit in a bag filling and packaging machine according to the present invention. FIG. 2 is a plan view showing an enlarged main part of the attachment structure of the cylinder unit shown in FIG. FIG. 3 is a view showing an example of a lift mechanism of a servomotor in the mounting structure of the cylinder unit shown in FIG. FIG. 4 is a cross-sectional view cut along the broken line A-A shown in FIG. 2 and is a view showing the unlocked state and the locked state of the attachment structure of the cylinder unit. FIG. 5 is a block diagram relating to attachment control of the tube making unit in the control device provided in the bag filling and packaging machine. FIG. 6 is a perspective view showing an example of a conventional vertical form-fill-seal machine to which the attachment structure of the tube making unit is applied. FIG. 7 is a perspective view showing an example in which the tube making unit in the vertical form-fill-seal packaging machine is attached to the main body frame of the packaging machine. FIG. 8 is a plan view showing the details of an example in which the production unit is attached to the main body frame of the packaging machine.

  Hereinafter, based on the attached drawings, an embodiment of the mounting structure of the cylinder unit in the bag filling and packaging machine according to the present invention will be described. FIG. 1 is a view showing an embodiment of the mounting structure of the cylinder unit in the bag filling and packaging machine according to the present invention, and FIG. 1 (a) is a plan view showing an example of the cylinder unit and its mounting structure; (B) is a front view of the cylinder unit and its mounting structure, and FIG. 2 (c) is a side view thereof. FIG. 2 is an enlarged plan view showing the main part of the mounting structure shown in FIG. In FIG. 1, the position of the fixing member is appropriately shown in cross section. Moreover, FIG. 3 is a front view which shows an example of the raising / lowering mechanism of the servomotor in the attachment structure of the cylinder unit shown in FIG.

  With regard to the mounting structure of the cylinder unit shown in FIG. 1, the bag filling and packing machine to which the cylinder unit should be attached is a conventionally used vertical bag filling and packing machine as shown in FIG. 6 and FIG. May be there. Therefore, when referring to the configuration of the vertical form-fill-seal packaging machine, the code used for describing the vertical form-fill-seal packaging machine shown in FIG. Thus, the description of the configuration of the packaging machine is not repeated.

  In the vertical form-fill-seal packaging machine, the product S to be disposed through and disposed at a predetermined gap between the former 51 for forming the band-shaped packaging material Fw into the cylindrical packaging material Ft and the former 51 is introduced. The cylinder unit 10 including the filling cylinder 53 is collectively attached to the main body frame 70 of the packaging machine. The cylinder unit 10 is assembled on the base plate 12. Although the base plate 12 and the filling cylinder 53 are illustrated in FIG. 1, the flange portion 53 a at the upper end of the former 51 supported from the rear portion of the base plate 12 via the mounting plate and the filling cylinder 53. About the hopper 52 connected so that the feed path of the product S may be connected upwards using FIG.

  The right and left columns 13 and 13 are provided upright on the base plate 12, and the bridge 14 is attached between the columns 13 and 13 by appropriate means such as screwing 15 or 15 at the upper end of the columns 13 and 13. It has been passed. The filling cylinder 53 is held on the bridge 14 in such a manner that the flange portion 53 a at the upper end thereof is placed on the bridge 14. The filling cylinder 53 is suspended from the upper end by the bridge 14 and extends downward through the base plate 12. At the lower end of the filling cylinder 53, tension guides 53b, 53b having springiness are provided which contact the cylindrical packaging material Ft from its inner surface and expand it in the width direction. Furthermore, on the side surface of the lower half of the filling cylinder 53, elongated flat surfaces 53c, 53c are formed on which the suction belts of the packaging material feeding devices 56, 56 are pressed with the cylindrical packaging material Ft interposed therebetween.

  The base plate 12 has a notch 16 which is open at the center front, and is continued to the central large diameter hole 17 through which the filling cylinder 53 passes. The base plate 12 and the body frame 70 are positioned slightly lower than the former 51 in a state where the base plate 12 is overlapped and attached to the body frame 70, but the filling cylinder 53 is provided with the notches 16 of the base plate 12 and The main body frame 70 is exposed to the front of the packaging machine through notches 73 separating the left and right upper frame horizontal portions 71, 71. Therefore, the vertical sealing device 54 can be approached from the front to the filling cylinder 53 by the notches 16 of the base plate 12 and the notches 73 of the main body frame 70, and the band-like packaging material is formed in a curved shape in the approaching state. Vertical sealing can be applied by sandwiching the two side edge portions fe, fe of Fw.

  Since the cylinder unit 10 is integral with the base plate 12, the base plate 12 is placed on the upper frame horizontal portions 71, 71 of the main body frame 70, and the base plate 12 is placed on the upper frame horizontal portions 71, 71 in the mounted state. By sliding the mounting unit in the mounting direction X (FIG. 1A), the cylinder unit 10 can be accurately moved to the mounting position on the upper frame horizontal portions 71, 71. On the left and right back sides of the base plate 12, mounting grooves 18, 18 which penetrate the base plate 12 up and down and opened in the mounting direction (rear of the packaging machine) X are formed in the form of notches. In order to fix the cylinder unit 10 to the main body frame 70, fixing members 20, 20 are provided upright on the left and right upper frame horizontal portions 71, 71 of the main body frame 70. The fixing members 20, 20 are provided with a main body 21 (see FIG. 4) having a size corresponding to the groove width W of the mounting grooves 18, 18. The main body portion 21 is formed as a cylindrical body in this embodiment. When the base plate 12 is slid in the mounting direction X, the main unit 21, 21 of the fixing members 20, 20 abuts against the deepest portion having the semi-cylindrical surface of the mounting grooves 18, 18, thereby making the cylinder unit 10 the main body frame It is accurately positioned at the mounting position relative to 70.

  As shown in FIG. 1 and FIG. 2, in the cylinder unit 10, the second cylinder unit 10 corresponds to the combination of the former 51 adapted to the packaging of the product S (item) to be packaged and the filling cylinder 53. 1Indicator section is provided. In this embodiment, the first index portion is formed in parallel with the generatrix direction of the cylindrical body which is the main body portion 21 from the arc-shaped groove surface 18 a of the mounting groove 18 on the right side formed in the base plate 12. The key groove 19 is provided. The key groove 19 formed at a specific angular position on the arc-shaped groove surface 18 a of the mounting groove 18 is an index unique to the cylinder unit 10 corresponding to the combination of the former 51 and the filling cylinder 53. If the combination of units is different, the angular position at which the key groove 19 is provided is different accordingly.

  The right fixing member 20 is a second index which is integrally provided on the main body 21 attachable to the main body frame 70 and the main body 21 and corresponds to the first index portion (key groove 19) of the cylinder unit 10 It has a department. In this embodiment, the second indicator is provided as a key 22 which projects from the main body 21 at that particular angular position. In the case where the main body portion 21 is a cylindrical body, the key 22 which is the second index portion is formed in a mode projecting radially from the circumferential surface of the cylindrical body and extending in parallel to the generatrix direction of the cylindrical body. In cooperation with the body frame 70, the vertical sealing device 54, the horizontal sealing device 55, the strip-like packaging material guiding device for guiding the feeding to the cylinder unit 10 as the first roller 62, and the tubular packaging material Ft in cooperation with the filling cylinder 53. The packaging machine main body including the packaging material feeding devices 56, 56 for feeding the plural cylinder units by mechanically changing the mounting position thereof and changing the operation (timing, speed, range, etc.) by software. Has the flexibility to respond to Since a plurality of tube forming units can be adapted to one packaging machine main body, it is necessary to select and install a specific tube forming unit from among the specific products to be packaged. Therefore, in the main body portion 21, the angular position where the key 22 protrudes is an index corresponding to a specific cylinder unit, and the angular position of the key 22 in the projection direction according to the cylinder unit to be selected and mounted It is different.

  When the key groove 19 which is the first index portion of the cylinder unit 10 and the key 22 which is the second index portion of the fixing member 20 are the cylinder units which are appropriate for the specific product to be packaged by the cylinder unit 10 The angular position corresponds to the same specific angular position, and can be fitted as a concavo-convex fit with each other in size. The cylinder unit 10 can be attached to the main body frame through the fixing member 20 only when the key groove 19 as the first index portion and the key 22 as the second index portion are in a fitting state. (Details will be described later). If the cylinder unit 10 is not a proper cylinder unit for a specific product to be packaged, the key groove 19 which is the first indicator of the cylinder unit 10 and the key 22 which is the second indicator of the fixing member 20 Can not be fitted to one another because at least their angular positions do not correspond, so that no subsequent attachment (fixing) is possible either.

  The fixing members 20 are configured to be movable in the vertical direction by the operation of a switch provided in the packaging machine. With regard to one fixing member 20 having the index portion, the concavo-convex fitting of the key 22 and the key groove 19 can be in a fitting relationship when the fixing member 20 moves in the vertical direction. That is, the key 22 which is the second index portion of the fixing member 20 is limited only when the cylinder unit 10 is a proper cylinder unit for a specific product to be packaged by the downward movement of the fixing member 20. It can be fitted into the key groove 19 which is the first index portion of the cylinder unit 10. A shaft member 25 movable in the axial direction (vertical direction) is connected to the lower side of the main body portion 21. The mechanism for moving the other fixing member 20 having no index portion in the vertical direction may be a mechanism using a normal actuator 32 such as an electromagnetic actuator or an air actuator as shown in FIG. 1 (b). The shaft member 25 can be an output shaft of the actuator 32.

  As an example of the configuration that allows the fixing member 20 on the side having the index portion to move in the vertical direction, detailed illustration is omitted in FIG. 1 for the sake of simplification, but each servo motor 30 as shown in FIG. There is a slide structure that moves up and down. In FIG. 3, two slide shafts 33, 33 are attached to the upper frame horizontal portion 71 of the main body frame 70 in a hanging manner, and the air cylinder base 34 is fixed to the lower ends of the slide shafts 33, 33. It is done. A lifting and lowering air cylinder 35 is vertically disposed on the air cylinder base 34, and a motor base 36 slidably fitted to the slide shafts 33, 33 is attached to the upper end (output end) of the lifting and lowering air cylinder 35 It is done. The servo motor 30 is preferably attached to the lower surface of the motor base 36, and the rotation output shaft 31 penetrates the motor base 36, the upper frame horizontal portion 71 and the base plate 12 so that the upper end portion is the main body of the fixing member 20. (Cylindrical body) 21 is connected. The rotation output shaft 31 doubles as a shaft member 25 that moves in the vertical direction. By operating the elevating air cylinder 35, the motor base 36 is guided by the slide shafts 33, 33 to move up and down, and the motor base 36 moves up and down together with the servomotor 30 and thus the rotation output shaft 31. By raising and lowering the rotation output shaft 31, the fixing member 20 can move in the vertical direction.

  Referring to FIG. 4 which is a cross-sectional view taken along line A-A shown in FIG. 2, the fixing member 20 locks the base plate 12 to the main body frame 70 (FIG. 4A) and the unlocking state (FIG. 4) 4 (b)) will be described. As shown in FIG. 4, each fixing member 20 is provided with a head portion 23 having a shape projecting outward beyond the circumferential surface of the cylindrical body at the top of the cylindrical body as the main body portion 21. The lower surface 24 of the head, which is the downward surface of the overhanging portion of the head portion 23, can abut on the upper surface 12a in a state in which the base plate 12 is locked.

  The fixing members 20 can be moved in the vertical direction by moving the shaft members 25 in the vertical direction, and the moving range in the vertical direction is preferably superimposed on the main body frame 70 and the cylinder unit 10 Corresponds to the thickness H of the base plate 12 being assembled. By this configuration, as shown in FIG. 4B, the fixing members 20 are moved upward away from the base plate 12, and at the same time, the base plate for one fixing member 20 having the index portion is When the key 22 fitted in the key groove 19 of 12 is completely removed from the key groove 19 of the base plate 12, the head lower surface 24 of the head portion 23 is separated from the upper surface 12 a of the base plate 12. Locking of the base plate 12 being carried out and the body frame 70 of the cylinder unit 10 as a whole is released. As a result, the base plate 12 can slide in the direction opposite to the mounting direction (X direction) with respect to the main body frame 70, and the cylinder unit 10 can be removed from the main body frame 70. 10 can be moved in the mounting direction (X direction) to make the main body frame 70 loadable.

  On the other hand, when the production unit 10 is locked to the main body frame 70, as shown in FIG. 4A, the fixing members 20, 20 correspond to the mounting grooves 18, 18 of the base plate 12, and the base plate 12 is the main body frame. The fixing members 20, 20 are moved downward while being moved to the mounting position with respect to 70. When the cylinder unit is appropriate, the key 22 for one of the fixing members 20 is fitted in the key groove 19 of the base plate 12, and the head portions 23, 23 of the fixing members 20, 20 have their head lower surfaces 24, 24. The base plate 12 is pressed against the upper frame horizontal portions 71, 71 such that the base plate 12 is sandwiched between the upper surfaces 71a, 71a of the upper frame horizontal portions 71, 71. Thereby, the cylinder unit 10 can be locked with respect to the main body frame 70. It is preferable to provide a sensor for detecting the amount of movement of the fixing members 20, 20 in the vertical direction. Based on the detection output of the sensor, it is determined whether or not the cylinder unit 10 is properly set in the main body frame 70.

  It is preferable to form the main body 21 of the fixing member 20 on the side having the index part as a cylindrical body that can rotate with respect to the main body frame 70. The key 22 as a second index portion of the fixing member 20 is formed as a non-cylindrical portion integrally formed with the cylindrical body. The fixing member 20 is rotatably supported on the main body frame 70 as a whole by rotation of the main body portion (cylindrical body) 21 with respect to the main body frame 70. By changing the position at which the fixing member 20 is stopped rotating according to the combination of the former 51 and the filling cylinder 53 that conforms to the packaging of the product S (item) to be packaged, the fixing member 20 is used as a second indicator (key 22) can be used as a common part for a plurality of cylinder units by having the same shape itself but having different rotation stop positions for each cylinder unit. On the other hand, in the cylinder unit 10 including the former and the filling cylinder, as described above, the key groove 19 as the first index portion formed on the base plate 12 according to the combination of the former 51 and the filling cylinder 53. Position (including posture) is changed. Therefore, the position and the attitude of the key groove 19 to be formed in accordance with the packaging of the product S (item) to be packaged are different.

  The means for rotating the main body portion (cylindrical body) 21 of the fixing member 20 can be a servomotor 30 attached to the main body frame 70 and whose rotational output is controlled in multiple stages. The fixing member 20 is connected to the rotation output shaft 31 of the servomotor 30. The control of the amount of rotation according to the cylinder unit of the servomotor 30 is performed in a mode as shown as a block diagram in FIG. That is, in response to the instruction of the product (item) S to be packaged to the input means 41 (and further including the instruction of the packaging material used for the packaging, if necessary), the control device 40 of the packaging machine From the various data stored for each item, a specific cylinder unit 10 having a combination of a compatible former 51 and a filling cylinder 53 is selected, and a second indicator corresponding to the specific cylinder unit 10 In order to determine the rotational position of the key 22 as a control data, data of the amount of rotation for rotating the servomotor 30 is obtained as a control amount. The control device 40 controls the rotation of the servomotor 30 to rotate the fixing member 20 by a predetermined amount of rotation. The rotation operation of the fixing member 20 is also preferably detected by an appropriate sensor 43. The sensor 43 can use, for example, an origin detection sensor usually provided in the servomotor 30. In this case, the rotational position can be stored by adjusting the origin in a state where the fixing is released only once after the power is turned on. The control device 40 that has received the detection signal from the sensor 43 determines whether the fixed member 20 has rotated by a predetermined amount of rotation and causes the display means 44 to display the determination result (OK or error, etc.) it can. In FIGS. 1A and 2, the rotation output shaft 31 of the servomotor 30 is drawn eccentrically to the servomotor 30 corresponding to provision of a reduction gear for decelerating the rotation output of the servomotor 30. ing.

  As a means for rotating the main body (cylindrical body) 21 of the fixing member 20, besides the servomotor 30, an electromagnetic actuator or an air actuator whose output is a multistage operation can be adopted. These actuators have multiple output positions, so that the rotation stop position of the fixing member 20 linked to the output member of the actuator can be changed to multiple stages depending on the cylinder unit.

  The embodiment of the mounting structure of the production unit in the bag filling and filling machine according to the present invention has been described above, but the present invention is not limited to such an embodiment, and various modifications may be made within the technical idea of the present invention. Changes are possible. For example, various structures other than the bridge 14 etc. can be used for the structure of attachment or holding of the former 51 and the filling cylinder 53 assembled on the base plate 12. Although the fitting between the key 22 and the key groove 22 was taken as an example for the index part, it is also possible to use other key-shaped shapes. Furthermore, if the fixing members 20, 20 are not rotated (changed according to the model), the main body 21 does not necessarily have to be a cylindrical body, and the shape of the innermost portion of the loading grooves 18, 18 It is not necessary to limit to a semi-cylindrical surface.

DESCRIPTION OF SYMBOLS 10 cylinder unit 12 base plate 12a upper surface 13, 13 support 14 bridge 15, 15 screwing 16 notch 17 large diameter hole 18, 18 mounting groove 18a arc-shaped groove surface 19 key groove 20, 20 fixing member 21 main body 22 key 23 Head part 24 Head lower surface 30 Servo motor 30 31 Rotation output shaft 32 Actuator 33, 33 Slide shaft 34 Lifting air cylinder base 35 Lifting air cylinder 36 Motor base 40 Control device 41 Input means 42 Memory means 43 Sensor 44 Display means 50 Vertical type Bag filling and packaging machine 51 former 52 hopper 53 filling cylinder 53a flange 53b, 53b spring bar 53c, 53c flat surface 54 vertical sealing device 54a, 54b vertical sealing block 55 horizontal sealing device 55a, 55b horizontal sealing block 56, 56 Material feeding device 57 Cutter device 58 Tube forming unit 60 Dancer roller 61 Adjust roller 62 First roller 63 Guide roller 70 Body frame 71, 71 Upper frame horizontal part 72 Base plate 73 Notch 74, 74 Support 75, 75 Bracket 76 Mounting plate 77, 77 Notch 78 Screw hole or mounting hole Fr Film roll Fw Strip wrapping material fe, fe Side edge part Ft Cylindrical wrapping material Sc Vertical seal part Se Horizontal seal part S Product Bp Bag package body B Bag W Groove width H Thickness of base plate 12

Claims (10)

In order to manufacture a cylindrical packaging material by curving a belt-like packaging material, the former is formed into a cylindrical body having a cylindrical interior and a cylinder circumferential surface, and the former is made to curve the beltlike packaging material into a substantially cylindrical shape. On the other hand, the band-like packaging material which is disposed to be penetrated with a predetermined gap between the cylinder circumferential surface and passed through the gap is formed into the cylindrical packaging material and fed in a paper surrounding the cylinder circumferential surface In a form-fill-seal machine, wherein a cylinder unit comprising a filling cylinder which is filled with the product to be packaged and which is fed through the inside of the cylinder is attached to the body frame of the packaging machine,
The tube making unit is provided with a first index portion unique to the tube making unit corresponding to a combination of the former and the filling tube for packaging of the product to be packaged,
A fixing member having a main body portion attachable to the main body frame and a second index portion integrally provided to the main body portion is attached to the main body frame in the main body portion,
The second index portion can be fitted to the first index portion only when the tube making unit is a tube making unit appropriate for packaging of the product to be packaged, and the tube making unit can It can be attached to the main body frame via the fixing member only when the first indicator and the second indicator are in the fitting state,
The attachment structure of the tube making unit in the form-fill-seal machine comprising: 2. The bag making and packaging machine according to claim 1, wherein the fitting relationship between the first index part of the cylinder unit and the second index part of the fixing member is an uneven fitting. Tube unit mounting structure. The main body portion of the fixing member is formed as a cylindrical body rotatable relative to the main body frame,
The second index portion of the fixing member is a non-cylindrical portion integrally formed with the cylindrical body,
The fixing member is commonly used for a plurality of types of cylinder units by changing the position at which the main body portion is rotated with respect to the main body frame to stop rotation, while the fixing member is used for each cylinder unit. The mounting structure of the tube making unit in the form-fill-seal machine according to claim 1 or 2, wherein the rotation stop positions of the two index portions are provided differently. The main body of the fixing member can change the position at which rotation is stopped according to each cylinder unit by a servomotor whose rotational output is controlled in multiple stages, or an electromagnetic actuator or an air actuator whose output is in multistage operation. The mounting structure of the cylinder unit in the form-fill-seal machine according to claim 3, which comprises: The second index portion of the fixing member is a key that protrudes in the radial direction from the circumferential surface of the cylindrical body and is formed in a manner extending in parallel with the generatrix direction of the cylindrical body,
The said 1st index part of the said cylinder unit is formed in parallel with respect to the generatrix direction of the said cylindrical body, It consists of a key groove which can be inserted in the said key. The mounting structure of the tube making unit in the bag making, filling and packaging machine. The fixing member can be moved in the vertical direction by the switch operation, and the moving operation in the downward direction allows the tube unit to be a tube unit suitable for packaging the product to be packaged. The bag making and packaging machine according to claim 5, wherein the key which is the second index portion of the fixing member can be fitted into the key groove which is the first index portion of the cylinder unit. Tube unit mounting structure. The cylinder unit is assembled on a base plate stacked on the body frame,
At the upper part of the cylindrical body, there is provided a head portion projecting outward beyond the circumferential surface of the cylindrical body,
The cylinder unit is locked with respect to the body frame by the cylinder unit being sandwiched between the head portion and the body frame by the downward moving operation of the fixing member.
The cylinder unit mounting structure of the bag making, filling and packaging machine according to claim 6, wherein the lock of the cylinder unit is released by an upward movement operation of the fixing member. The horizontal plate is formed with a mounting groove opened to the outside in the front-rear direction corresponding to the position where the fixing member is mounted to the main body frame,
In the state where the lock of the cylinder unit is released by the upward moving operation of the fixing member, the fixing member is relatively moved in the mounting by moving the horizontal plate in the front-rear direction. The mounting structure of the tube making unit in the form-fill-seal machine according to claim 7, wherein the tube making unit is pushed or pulled out of the set position with respect to the main body frame. A sensor is provided to detect the amount of movement of the fixing member in the vertical direction,
The bag making and packaging machine according to any one of claims 6 to 8, wherein whether or not the cylinder unit is properly set on the main body frame is determined by the detection output of the sensor. Tube unit mounting structure. The form-fill-seal packaging machine includes a longitudinal sealing device for longitudinally sealing a side edge portion of the strip-like packaging material to form the strip-like packaging material into the tubular packaging material, and a transverse direction of the tubular packaging material. Transverse sealing device for applying a transverse seal, Belt-shaped packaging material guiding device for guiding feed of the belt-shaped packaging material to the above-mentioned cylinder unit, and Packaging material feeding device for feeding the above-mentioned tubular packaging material in cooperation with the above-mentioned filling cylinder It further comprises a vertical bag-fill-filling machine for continuously manufacturing a bag package in which a product is introduced into the previously formed bag while forming a bag from the cylindrical packaging material. The attachment structure of the cylinder unit in the bag-fill-seal machine according to any one of claims 1 to 9, comprising:

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