JP3553829B2 - Method and apparatus for sealing corners of packaged rice - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method and apparatus for heating and sealing a corner portion of a plastic packaged rice cooked with laver.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there has been developed a mechanical rice-shed wrapping apparatus using a rice-shed pit (Japanese Patent Publication No. 5-67484) in a rice-shed wrapping machine, a rice-sheet wrapping machine for a sheet-like film (Japanese Patent No. 2778434), and the like. This mechanical packaging efficiently packs triangular rice in a sheet film and is suitable for mass production. However, the tops of the three triangular rice are easy to vacate, and are exposed to air to dry from there. There was a drawback that pests such as flies entered.
[0003]
In response to such a defect, a triangular rice ball (Japanese Utility Model Publication No. 7-7745) in which rice is hermetically sealed by sealing gaps at three corners. However, there is no specific method for fixing the product at the three corners and for sealing. This is because the current apparatus is full of only the function of packing in a triangle, and it has not been considered that the three tops of the triangle cover the easily vacant defect.
[0004]
[Problems to be solved by the invention]
In the present invention, the packaging is completed in the packaging rice storing pit, and at the stage outside the machine or before being carried out of the machine, the corners are heated and sealed to prevent drying and storage of the polygon package rice. The purpose is to improve the performance.
[0005]
[Means for Solving the Problems]
The present invention for achieving the above object is
Positioning frame polygonal packaging rice ball is provided at equal intervals on the endless intermittently rotating device, at the same time heat welding contact heating strip to the side of the plurality of corner protrusions extending from the frame at the stop position of the positioning frame a equipment you seal a diagonal frame the positioning frame is interposed the opening angle, an the endless intermittently rotating device is endlessly intermittently rotating conveyor, inclined with the oblique frame on said conveyor, A guide plate fixedly arranged in the moving direction of the conveyor and having a corner projection insertion gap interposed between the conveyor and the oblique frame, and a corner projection insertion gap interposed between the oblique frames. corner sealing device positioning frame Do that packaging rice ball is polygonal pits for accommodating the polygonal packaging rice ball, endless intermittently rotating device is a endless intermittently rotating discs, the pits circular plate Are provided at equal intervals along the outer circumference of the A groove for accommodating the corner projection is extended at each vertex, and a heating piece insertion groove is formed on one or both sides of the groove in the depth direction of the pit, and the plurality of heating pieces are inserted by the heating pieces inserted into the insertion groove. It is constituted by the corner sealing device for packaged rice sliver according to the first aspect of the present invention, wherein the corner projections are simultaneously sealed by heat welding.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
(1) Triangular packaged rice-harvesting pits 1 are formed every 60 degrees along the outer circumference of the endless intermittently rotating disk 15 shown by the imaginary line in FIG. The extended grooves 2, 2, 2 are formed in the depth direction of the pit 1, and the main body of the triangular packaged rice-grinding 3 is inserted into the pit 1, and the corners of the packaging film are projected into the grooves 2, 2, 2. The parts 4, 4, 4 are accommodated.
[0007]
A receiving plate 25 of the packaged rice 3 is provided immediately below the stop position of the pit 1, and the packaged rice 3 in the pit 1 is pushed by a stamp and transferred to the receiving plate 25.
[0008]
An endless intermittent rotation device Y, that is, an upper transition portion 26 ′ of an endless intermittent rotation conveyor 26 is disposed at the same level as the reception plate 25, and the triangular package rice 3 on the reception plate 25 is disposed. The push plate 27 slides from the solid line position to the imaginary line position in FIG. 2 so that the rice-grass 3 is placed in the stopped positioning frame X provided on the conveyor 26, that is, the oblique frames 28, 28 having an opening angle of 60 degrees. As shown in (2), both sides of the rice-grass rice 3 are positioned in contact with the slanted frames 28, 28.
[0009]
One vertex of the triangular packaged rice on the receiving plate 25 is guided to the inner surfaces of the oblique frames 28, 28 during the pressing operation by the pressing plate 27, and the two side surfaces of the rice 3 are shown in FIG. As shown by the imaginary line, it is fitted and positioned in the oblique frames 28, 28.
[0010]
After the pushing plate 27 is retracted to the position indicated by the solid line in FIGS. 1 and 2, the conveyor 26 is rotated by a predetermined distance, and the oblique frames 28, 28 are attached to the heat-resistant guide plate 29 to the left in FIG. Move along and stop.
[0011]
In this state, the corner protruding portions 4, 4, 4 extend from the gap t between the guide plate 29 and the oblique frames 28, 28 and the gap t 'between the oblique frames 28, 28 to the outside of the oblique frames 28, 28. It protrudes and extends in three directions.
[0012]
In this state, the outer corner protruding portions 4 of the oblique frames 28, 28 have the side surfaces sandwiched by the opening and closing heating pieces 5, 5, and at the same time, protrude and extend on both sides along the guide plate 29. The side surfaces of the heating pieces 5 ', 5' are pressed against the heat-resistant guide plate 29, and the corner projections 4, 4, 4 are simultaneously heat-sealed.
[0013]
As shown in FIG. 4, the opening / closing heating pieces 5, 5 have horizontal opening / closing arms 31, 31 provided on upright forward / reverse rotating shafts 30, 30 opened and closed via meshing gears 32, 32 having the same number of teeth. Heating pieces 5 and 5 opposed to each other at the end of 31 sandwich the corner projecting portions 4 protruding from the oblique frames 28 and 28 and heat seal them.
[0014]
On the other hand, as shown in FIGS. 1 and 5, two vertically rotating heating pieces 5 'and 5' are provided on a forward / reverse rotating horizontal shaft 34 parallel to the guide plate 29 pivotally supported by the machine frame 33 immediately above the guide plate 29. Are provided at the lower end thereof with heating pieces 5 ', 5' for pressing the side surfaces of the corner projections 4, 4 which are in contact with the guide plate 29 and which project right and left from the gaps t, t. The left and right corner projections 4, 4 which are provided at the lower ends of the swinging legs 35, 35, respectively, and which are in contact with the guide plate 29, are sealed by heat welding.
[0015]
A bevel gear 36 is provided on the forward / reverse rotation horizontal shaft 34, and meshes with a bevel gear 36 'provided at the tip of an orthogonal forward / reverse rotation horizontal shaft 38 provided on the machine frame 33. And the bevel gear 39 'provided on the upper end of the upright forward / reverse rotation shaft 41 provided on the machine box 40, and the number of teeth of these bevel gears 36, 36' and 39, 39 'is reduced. The meshing gears 32, 32 have the same number of teeth, and one of the upright forward / reverse rotating shafts 30, 30 is driven by a forward / reverse intermittent motor M, and the upright forward / reverse rotating shaft 41 is driven by a forward / reverse intermittent motor M. And simultaneously rotate the horizontal opening / closing arms 31, 31 and the two swinging legs 35, 35 at the same time, thereby simultaneously operating the heating pieces 5, 5 provided on the horizontal opening / closing arms 31, 31. 5 heats the side surface of the corner projection 4 and heatsinks provided on the two swing legs 35, 35. Pieces 5 ', 5' can be performed simultaneously and side pressing the heating of the left and right corner protruding portions 4 by.
[0016]
Thereafter, the conveyor 26 is rotated at a fixed interval, and simultaneously heat seals the three corner projections 4, 4, 4 of the packaged rice 3 in the next oblique frames 28, 28 as described above, and repeats this. It is.
[0017]
At the end stop position of the conveyor 26, as shown in FIG. 6, the push rod 43 moves between the oblique frames 28 and 28 from the solid line position in FIG. 1 by a no-seal signal from a seal sensor 42 provided above the previous stop position. Through this, the unsealed packaged rice 3 can be pushed out in a direction perpendicular to the conveyor 26, and conversely, the unsticked signal from the seal sensor 42 causes the push rod 43 to stop at the position indicated by the solid line in FIG. It can be controlled so that it is transported in the direction of 26 and the packaged rice 3 with seal is pushed out in a direction perpendicular to the conveyor 26.
[0018]
In FIG. 3, reference numeral 44 denotes a sliding arm for reciprocating operation of the pressing plate 27, 45 denotes a rotating disk for sliding, and 46 in FIG. Reference numeral 48 denotes a step motor for intermittently driving the conveyor 26, and 49 denotes a timing belt meshing gear of the conveyor 26.
[0019]
(2) The upper and lower surfaces and each side surface of the formed triangular rice shredder 3 'are wrapped with a rectangular packaging film 13, and the film 13 is placed above the upper surface along the isosceles triangle side surfaces 3 ", 3" of the rice meal 3'. In a state where both corners 14 and 14 are protruded, a triangular vertex is formed at the three corners of the positioning frame X that fits the three side surfaces of the rice-grinding 3 ′, that is, the triangular packaged rice-grinding storage pit 1. An endless intermittent rotation device Y in which grooves 2, 2, 2 extending outside the pit 1 are formed in the depth direction of the pit 1, that is, an endless intermittent rotation disk 15 (without the insertion groove 6) is known. (FIG. 7 of Japanese Patent Publication No. 5-67484, FIG. 7 of Japanese Patent No. 2778434).
[0020]
The intermittently rotating disk 15 is an intermittently rotating disk at the final stage of the rice-packing machine using the sheet-like film 13, and stops rotating every 90 degrees, and is shown in FIG. 12 (d) as shown in FIG. In this state, the pit 1 is pushed into the pit 1 from above by a stamp, and the three corner projections 4, 4, 4 enter the grooves 2, 2, 2.
[0021]
In this state, the disc 15 is rotated by 90 degrees in the direction of the arrow a and stopped, and both corners 14 ', 14' of the film projecting upward are folded by a folding machine (not shown) as shown in FIG. (E) As shown in the drawing, the packaged rice 3 is folded on the upper surface, and a seal 16 is attached on the folded portion by a seal attaching machine (not shown).
[0022]
From this state, the disk 15 is further rotated by 90 degrees in the direction of arrow a and stopped immediately below the elevator frame 7.
[0023]
Insertion grooves 6 for opening and closing heating pieces 5, 5 orthogonal to the grooves 2, 2, 2, respectively, are formed in the grooves 2, 2, 2 on both sides of the grooves 6 in the depth direction of the pit 1.
[0024]
The elevator frame 7 is moved up and down by the rotation of an elevator rod 17 provided outside the disk 15 and a cam provided at the lower end thereof, and intersects (orthogonally in FIG. 9) along the lower surface of the machine frame 7. A set of forward and reverse rotation shafts 8, 8 'and 9, 9' are provided.
[0025]
As shown in FIG. 9, a pair of forward and reverse rotation shafts 8, 8 'are provided in parallel with the radial direction r of the disk 15, and the center line (perpendicular line passing through the apex of the triangle) of the pit 1 stopped. The direction coincides with the radial direction r, and the other set of forward / reverse rotation shafts 9, 9 'is orthogonal to the radial direction r (FIG. 9).
[0026]
Each pair of forward and reverse rotation shafts 8, 8 'and 9, 9' are provided with interlocking gears 10, 10 '(the same number of teeth) meshing with each other, and one of the forward and reverse rotation shafts 8, 8' in the radial direction r. 8 is provided with a bevel gear 11 at its tip and meshed with a bevel gear 11 'provided on one of the forward and reverse rotation shafts 9, 9' orthogonal to the radial direction r (the number of teeth of both bevel gears 11, 11 '). Are the same).
[0027]
Opening and closing legs 12, 12 'are respectively suspended at the middle of the forward and reverse rotating shafts 8, 8' in the radial direction r and at both ends of the forward and reverse rotating shafts 9, 9 'orthogonal to the radial direction r. Heating pieces 5, 5 facing each other are provided at the lower ends of the opening and closing legs 12, 12 'in the direction of the insertion grooves 6 of the opening and closing heating pieces 5, 5, respectively.
[0028]
The three sets of heating pieces 5, 5 are opened at the time of ascending as shown by solid lines in FIGS. 10 and 11, and then descend into the insertion groove 6 in the opposite direction as shown by phantom lines in FIGS. When closed, the three corner projections 4, 4, 4 in the three grooves 2, 2, 2 can be simultaneously pressed and sealed.
[0029]
Thereafter, the three sets of heating pieces 5, 5 are opened in the three insertion grooves 6, 6, 6, and then raised to the solid line positions in FIGS.
[0030]
The opening and closing of the three pairs of open / close legs 12, 12 'are performed by forward / reverse rotation of an output shaft 19 of a forward / reverse reduction motor 18 connected to one of the forward / reverse rotation shafts 8, 8' in the radial direction r. The timing of the forward / reverse rotation is performed by the rotation of the cam at the lower end of the lifting / lowering rod 17 and the program control of the forward / reverse reduction motor 18.
[0031]
After completion of the sealing operation, the disk 15 is further rotated in the direction of arrow a by 90 degrees and stopped, and a stamp (not shown) immediately above is lowered to heat and seal the three corner projections 4 to form a packaged rice 3. Are unloaded onto the lower carry-out conveyor 20 and carried out.
[0032]
In FIG. 9, reference numeral 21 denotes a bearing for the forward / reverse rotating shafts 8, 8 ', 9, 9', 22 in FIGS. 10 and 11, a wire cord, and 23 in FIG. The middle 24 is a guide for the elevating rod 17.
[0033]
【The invention's effect】
The present invention is carried out simultaneously in three stopped state is positioned a heat welding seal corner protrusions of triangular packaging rice ball because due to equipment described above, there is a smooth and effective that can rapidly mass production.
[0034]
In addition, by simultaneously performing or performing the inside of the groove of the packaged rice picking pit, the sealing process can be simply, quickly and simply performed in the packaged rice picking pit without requiring a sealing step after being unloaded from the pit. effective.
[Brief description of the drawings]
FIG. 1 is a plan view of a corner sealing device for packaged rice in the present invention.
FIG. 2 is a plan view of a starting end of the sealing device.
FIG. 3 is a side view of FIG. 2 viewed from the right.
FIG. 4 is a front view of the corner projection portion in a sealed state.
FIG. 5 is a side view of FIG. 4 viewed from the left in a state where the corner projections are sealed.
FIG. 6 is a plan view of a terminal portion of the sealing device.
FIG. 7 is a side view taken along the line CC of FIG. 6;
FIG. 8 is a plan view of the corner sealing device for packaged rice in the present invention.
FIG. 9 is a plan view of the sealing device.
FIG. 10 is a side view taken along the line AA of FIG. 8;
FIG. 11 is a front view of FIG. 8B-B.
FIGS. 12 (a), (b), (c), (d), (e), and (f) are diagrams showing a procedure of a packaging step.
FIG. 13 is a plan view of the packaged rice before the corner seal.
FIG. 14 is a plan view of the packaged rice-grinding after sealing the corners.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Packing rice storage pit 2 Groove 3 Packaging rice 4 Corner protrusion 5 Heating piece 6 Heating piece insertion groove 7 Elevator frame 8, 8 ', 9, 9' Forward / reverse rotation shaft 10, 10 'Interlocking gear 11, 11' Umbrella Gears 12, 12 'Opening / closing legs X Positioning frame Y Endless intermittent rotation device X' Slant frame Y 'Endless intermittent rotation conveyor b Gap 15 Endless intermittent rotation disk

Claims (2)

Positioning frames for polygonal packaging rice are provided at equal intervals on the endless intermittent rotating device, and at the stop position of the positioning frame, heating pieces are brought into contact with the side surfaces of a plurality of corner projections extending from the frame, and simultaneously heated and welded. A sealing device, wherein the positioning frame is an oblique frame with an opening angle interposed therebetween, and the endless intermittent rotating device is an endless intermittent rotating conveyor, and the conveyor is inclined with the oblique frame on the conveyor. A guide plate fixedly arranged in the transition direction of the frame and having a corner projection insertion gap interposed between the slanted frame and a corner projection insertion gap interposed between the slanted frames. Corner sealing device for rice shaking. The positioning frame is a polygonal pit that accommodates the polygonal packaged rice, the endless intermittent rotation device is an endless intermittent rotation disk, and the pits are provided at equal intervals along the outer periphery of the disk, A plurality of apexes of the pits are extended with a groove for accommodating a corner projection, and a heating piece insertion groove is formed on one or both sides of the groove in the depth direction of the pit, and a heating piece inserted into the insertion groove is formed. corner sealing device of the packaging rice ball of claim 1, wherein the simultaneous heat welding seal corner protrusions of the plurality by piece.

Images