JP2005132388A - Packaging apparatus for bagging cleaned rice - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging machine for bagging a cleaned rice which does not make two kinds of packaging bags with extreme differences fall down respectively from clamps, and carries these two kinds of large and small packages of the cleaned rice in the selected directions. <P>SOLUTION: When the package 40 rotated supported by a clamp 12 around the central shaft 42 of the packaging machine and filled with the cleaned rice on a rotating track, reaches the final section supported by a pallet 60 from the underside, a pulley 57 press contacted on the lower face of an annular cam 58 by the weight of the cleaned rice is pushed up at a cutout part of the annular cam 58. As the pallet 60 is inclined to a condition of an imaginary line by the weight of the cleaned rice, so that the package 40 is delivered out by a conveyor 30 by opening the clamp 12. In this case, by positional movement 75b of an obstruction member 75, delivery of the package 40 is arbitrarily switched either to the bottom side or to the bag opening side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention is an apparatus for sequentially filling and sealing a predetermined amount of polished rice in a wrapping bag, and packaging the wrapping bag to prevent the pallet from falling off from the clamp of the wrapping bag due to the filling impact of the polished rice. It is characterized in that it is applied to the selection of changing the direction of carrying out the package.

  A rotary-type bag that revolves along a circular track integrally with the clamp, fills the package bag with a packaged object in the revolving track, and heat-seals the opening edge of the wrapped bag. In the bagging and packaging machine, the pallet that supports each packaging bag from the bottom is revolved integrally with each packaging bag in order to prevent the packaging bag from falling off the clamp due to the impact of the packaging material on the packaging bag. There is a configuration one.

  In a conventional packaging machine, when filling an object to be packaged in a flat self-supporting bag with a flat bottom, a structure in which the wrapping bag is operated upward with the pallet to counter the filling impact is used. A configuration is adopted in which the package bag is filled with an object to be packaged while the package bag is supported by the pallet from below, and then the pallet is rotated downward to vertically drop the package body.

In general, rice milling packaging uses two types of wrapping bags for 10 kg and 5 kg. In such a configuration where two types of packaging bodies having extremely different sizes are applied, the pallet As a result, there is a drawback in that the accuracy of carrying out the package in a predetermined direction is lowered. As a result, it is preferable that all packages be unloaded in the same direction because there is a problem of labor loss when the direction of such a heavy package is corrected manually by the unloading track. In addition, for example, in order to align the direction of the package in response to labeling, it is desirable that the direction of carrying out the package can be freely selected and changed.
Japanese Utility Model Publication No. 51-106670 Japanese Patent Laid-Open No. 2003-26101

  The problem to be solved is to make it possible to change the support pallet to a height suitable for these two types of wrapping bags so that the two types of wrapping bags with extreme differences are not dropped from the clamps, respectively. Using the pallet, each of the two types of packages is carried out in the same direction and freely changing directions.

  In order to make the carry-out direction of two types of large and small packages with extreme differences constant from the rotary type bag filling and packaging machine, and to change the direction freely, the central axis of the circular orbit for carrying the bag in the packaging machine An annular track installed around the pallet for supporting the package body through the parallel link mechanism and engaging the annular cam to keep it horizontal, and tilting the pallet to the package unloading section from the clip in the circular track In addition, an obstacle member for preventing the package body from falling over is installed so that the obstacle member can be displaced within the range of non-interference of the package body.

  FIG. 2 is a plan view showing the entire apparatus of the present invention. The apparatus includes a rotary bag filling and packaging machine 10, a packaging tube feeder 20 for the packaging machine, and the packaging machine 10. It is comprised with the package body conveyance conveyor 30. FIG.

  As shown in FIG. 3 in which a part of the rotary wrapping machine 10 is enlarged, two pieces for sandwiching a wrapping bag between a pair of support arms 13 which are supported on a disk 11 with a pin 21 as a fulcrum. Is supported and installed. Each clamp 12 includes a support rod 14 fixed to one end of the arm 13 and an opening / closing rod 16 that opens and closes with respect to the support rod 14 with a pin 15 as an axis, and the support arm 13 via a pin 17. One end of a lever 18 that is supported by the lever and the open / close rod 16 are connected via a connecting rod 19, while a coil spring 22 is provided between the extended end 13 b of the support arm and the other end of the lever 18. Is installed. By forming the arm extension end 13b, the coil spring 22 engaged therewith can have a sufficient amount of expansion and contraction and a relatively strong elasticity. As a result, the opening / closing angle of the opening / closing bar 16 is increased and the clamping pressure against the wrapping bag is increased. Therefore, it is possible to obtain a large amount of material, and it is suitable for supporting heavy objects such as polished rice.

  In short, the disk of the bag filling and packaging machine 10 in FIG. 2 supports six sets of clamps 12 at equal intervals around the disk and rotates intermittently by one pitch in the clockwise direction. Each clamp 12 moves intermittently while stopping for about 1 second. In this case, the cutting mechanism 25 in the tube feeder 20 cuts the strip-shaped tube film 26 into a length suitable for a wrapping bag and sequentially supplies it to each clamp 12.

  That is, as shown in FIG. 4, the film cutting mechanism is provided with a seal bar 27 on the upper part of the conveying track of the tube film 26 and a seal base 28 having a cutting blade 29 on the lower side of the track. The pipe heater 32 behind the cut blade receiving groove 31 in the seal bar 27 welds the film opening, while the front structure of the bar without such a welded structure allows the rear of the tube film 26. As a result of the end being cut while being kept open, the packaging bag 40 adsorbed to the vacuum cup 35 provided on the lever by the rotational motion 34 of the lever 33 with the pin 32 as an axis passes the opening upward and has a claw 36. Further, the wrapping bag 40 supported by the claw 36 is transferred to each clamp of the bagging and packaging machine by the rotation of the shaft 37.

  In each of the equal stop sections of the packaging machine disk 11 shown in FIG. 5, the section indicated as bag supply supplies the bag to the clamp as described above. In the subsequent opening display section, the packing bag is opened, and in the filling display section, the opened packing bag is filled with milled rice. Further, after the excess air in the sachet is evacuated in the deaeration display section, in the seal display section, the opening edge of the sachet is sealed with a pair of seal bars and sealed in the unloading display section. The package that has been sealed is taken out of the packaging machine, and the configuration that governs these operations will be sequentially described below.

  FIG. 6 is a partial cross-sectional side view of the packaging machine. The packaging machine forms a central axis 42 by a cylinder standing on a machine base 41 and is rotatably supported around the central axis 42. On the other hand, the disk 11 already described is fixed to the connecting member 44 provided on the umbrella at the upper end of the rotary 43. The clamp 12 of the support arm 13 supported by the disk 11 moves intermittently while sandwiching the wrapping bag 40 by the power applied to the gear 45 fixed to the lower part of the rotary 43. In this case, the pallet 60 that supports the milled rice in the packaging bag 40 from below moves together with the packaging bag 40. This structure will be described below.

  That is, while the annular track 46 arranged around the rotary 43 is supported by a screw rod 48 that engages with a female screw member 47 of the machine base, the annular track 46 is arranged around the rotary 43 in the same direction as the axis of the central shaft 42. Six guides 49 are fixed, and a horizontal radial arm 51 is slidably supported by each of these guides 49, and a lower roller 52 of each arm 51 is supported on the upper surface of the annular track 46.

  Further, a balance swinging rod 54 is horizontally supported on a horizontal T-shaped block 53 suspended from the arm 51, and the pallet 60 is fixed to the link 55 and the swinging rod 54, while A swing mechanism 54 and another link 56 form a parallel link mechanism, and a pulley 57 provided on the parallel link mechanism is fixed around the annular track 46 with the weight of the package loaded on the pallet 60. The annular cam 58 is brought into contact. With this configuration, the disk 11 revolves with the pallet 60, while the annular cam 58 with which the pulley 57 comes into contact maintains the pallet 60 in parallel.

  By rotating each threaded rod 48 with the endless chain 61 in FIG. 7, the annular track 46 can be displaced up and down along the guide rod 62. By the displacement of the annular track 46, each of the six arms 51 is moved to the pallet. 60 is displaced along the guide 49. Such a pallet free displacement is an adjustment that makes the height of the pallet correspond to the length of the two types of wrapping bags 40 for 10 kg and 5 kg in FIG. The two types of packages having different extreme lengths are adjusted so as to be supported by the pallet 60 under the same conditions.

  As shown in FIG. 8, the pair of support arms 13 that support the clamp are interlocked via fan-shaped gears 65 and 66 that mesh with each other, but the power of the tension spring 67 installed between the support arms 13 is as follows. A roller 71 at the end of a lever 69 pivotally supported on the disk 11 via a pin 68 is pressed against the peripheral surface of the cloud cam 73 via a rod 72. Therefore, when the roller 71 reaches the depression of the cloud cam 73 in FIG. 3, the distance 70 between the clamps 12 on both sides is narrowed by the tension of the spring 67, and the mouth of the sachet sandwiched between both clamps is expanded. .

  The rod 72 is formed by a piston rod of a fluid cylinder 77 so that the interval between both clamps can be changed to correspond to two types of bag widths, and each of the six cylinders 77 is a two-position three-port type. Are connected to the fluid pump 76 via the switching valve 95. As described above, the force of the spring 67 between the arms 13 contracts the piston rod 72 of the cylinder 77 to make it rigid, and the clamp interval corresponds to the width interval of the 5-kg bag. Further, when using a 10 kg bag, the fluid is pushed into each cylinder 77 by six operations of the switching valve 95, and each piston rod 72 is made rigid in an extruded state.

  As shown in FIG. 9, by deforming the lower surface upward with the upper surface of the annular cam 58 as a reference, the pallet 60 tilts downward due to its own weight. That is, in each of the filling, degassing and sealing sections in FIG. 5, the pallet needs to be kept horizontal to support the package, but the presence of the annular cam 58 makes the pallet unnecessary in the bag supply section. Since an adverse effect of pushing up the sachet occurs, the width of the annular cam 58 is narrowed between the opening section and the carry-out section to change the shape.

  As a result of the above, the clockwise pallet in FIG. 5 is tilted downward as shown in FIG. 9 due to the shape change of the annular cam immediately before reaching the unloading section and stopping, and simultaneously opening the clamp 12 to 40 is dropped and carried out. In this case, as a result of the rod-shaped obstacle member 75 existing in the carry-out section restricting the movement of the package 40, the package 40 slides down the bottom side as indicated by the arrow 93, and the unload conveyor 30 in FIG. It is unloaded to the next processing area.

  In FIG. 9, even if the annular track 46 is moved up and down in two stages, the contact points of the obstacle member 75 with respect to the two types of packages 40 do not change, and the packages 40 can be carried out in the same direction. Further, when changing the direction of carrying out the package, the fastening screw 78 is loosened, the lever 90 is rotated in the direction of the arrow 91 around the pin 79 and the obstacle member 75 is moved upward, thereby moving the bottom of the package 40. Since the friction with the pallet 60 is affected on the side, the package is carried forward on the bag mouth side as indicated by the phantom line.

  FIG. 1 shows a part of the packaging machine 10 already described and the carry-out conveyor 30, but these components coincide with the configurations of the same common reference numerals already described, and the description of this configuration is omitted again. .

  Although described for the purpose of packaging polished rice, it is considered to be applicable to a granular material packaging having a relatively large specific gravity.

Side view of part of the device Plan view of the entire device An enlarged plan view of a part of the bagging machine Side view of package supply mechanism Explanatory drawing of the packing bag trajectory Enlarged side view of part of the device Top view of the packaging support pallet Partial explanatory diagram of bag packing machine Explanatory drawing of the package unloading mechanism

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Bag filling and packaging machine 11 ... Disk 12 ... Clamp 13 ... Support arm 14 ... Supporting rod 16 ... Opening / closing rod 18 ... Lever-shaped rod 42 ... Center shaft 43 ... Guide 46 ... Annular track 48 ... Lifting mechanism 51 ... Arm 52 ... Roller 54 ... balance swing rod 56 ... parallel link 57 ... tilting mechanism 58 ... annular cam 60 ... pallet 65, 66 ... gear 77 ... fluid cylinder 75 ... obstruction member

Claims (2)

Means for intermittently rotating a large number of clamps, one set of two, one pitch at a time along the circular track at equal intervals, and the same number of guides as the number of the clamps along the central shaft around the central shaft of the circular track Means for rotating and rotating, an annular track around a central axis for supporting each arm slidably supported on each guide from the lower side via a roller, and an arrangement position of the annular track on the central axis And a parallel link mechanism formed at the other end of the balance swinging rod for maintaining the pallet at one end of the balance swinging rod pivotally supported at each other end of each radial arm horizontally. And a pulley provided in the parallel link mechanism is engaged with an annular cam installed on the annular track to keep the pallet horizontal, while carrying the package from the clip on the circular track. A mechanism for tilting the pallet in the downward inclination direction by changing the shape of the annular cam in the section, and a package that tries to fall outward in an integrated manner with the tilt of the pallet in the package unloading section from the clip in the circular track A rice wrapping and packaging apparatus in which an obstruction member for preventing the body from falling is installed, and the obstruction member can be displaced within the range of non-interference of the package. A pair of two clamps consists of a support rod fixed to one end of each of a pair of support arms pivotally supported by a disk, and an open / close rod that opens and closes relative to the same rod, and the clamping pressure is pivoted on the arm. One end of a supporting lever is connected to the opening / closing rod via a connecting rod, and the lever is generated by pulling a coil spring installed between the extension end of the other end of the arm and the other end of the lever. In addition, the other end of the fluid cylinder, one end of which is connected to a pair of gears that link the two arms to the pivot point, is pressed against the peripheral surface of the cloud cam at the center of the disk by a pulling spring between the arms. On the other hand, the apparatus according to claim 1, wherein the clamp interval is changed in two stages by pushing out a piston rod of the fluid cylinder with a pump pressure.