JP6046527B2 - Food case manufacturing equipment - Google Patents

Description

  The present invention relates to a food case manufacturing apparatus used for manufacturing a food case.

  In the manufacture of a food case manufactured by processing thin paper, plastic film, aluminum foil, or a laminated sheet material composed of two or more of these, a roll-shaped sheet material is cut out to a predetermined size before forming. Small pieces called “blanks” are manufactured (see Patent Document 1). In the manufacturing process of this blank material, a method of cutting out one or many sheet materials at the same time with a cutting blade integrated with a single punch or a molding punch, or a method of performing a molding process at the same time as cutting (bushing) is used. .

JP 2006-347596 A

In the method of cutting out and molding a large number of sheet materials at the same time, burrs or resin scum may be generated when the end (edge) of the manufactured blank is laminated. Moreover, it becomes difficult to isolate | separate the case for foodstuffs after shaping | molding by shape | molding in the state which piled up several blank materials. Further, there is a problem that a shape difference occurs between the upper side and the lower side of the food case formed by stacking a plurality of sheets.
In addition, when a single sheet cutting process is used to cut out one sheet material, the blank after curling is curled or misaligned, causing various errors such as handling errors, molding defects, and pattern shifts. May cause malfunctions.

  This invention is made in view of such a situation, Comprising: The food case manufacturing apparatus which can shape | mold without producing a curvature in the blank cut out from the sheet | seat material, and can prevent the malfunction at the time of a shaping | molding process The purpose is to provide.

  The present invention is a food case manufacturing apparatus for manufacturing a food case by forming a blank cut out from a sheet material that is a raw material of the food case, and can hold the blank and a cutting means for cutting the blank A pallet having a through hole, a transfer means for fitting the blank cut out by the cutting means into the through hole of the pallet, a forming means having a forming die and a punch for drawing the blank, and the pallet as the blank. Slide means for reciprocating from the assembling position to the molding position between the molding die and the punch, and the through hole of the pallet has an inner peripheral surface that contacts the outer peripheral edge of the blank, The forming means presses the punch against the forming die via the through hole of the pallet at the forming position. More, characterized by draw forming the blank.

The through hole of the pallet is formed slightly smaller than the outer shape of the blank so that the inner peripheral surface thereof contacts the outer peripheral edge of the blank. Therefore, the blank is in a state where the position is fixed in the through-hole and fitted into the through-hole, and the blank is placed in the through-hole in the correct posture without destroying the posture of the blank (without causing the warp of the blank). Can do. The punch is drawn by pressing the blank held on the pallet. Therefore, it is possible to avoid the occurrence of a blank position shift and the like, and it is possible to prevent problems that occur during the molding process.
Further, since the blank is slid to the molding position by reciprocating the pallet by the sliding means, the stroke of the punch can be reduced. In other words, when the blank storage part is provided integrally with the molding die, the molding die becomes thick, and it is necessary to retract the punch while avoiding the operation area by means for transferring the blank onto the molding die. As a result, the punch stroke becomes large, and the workability deteriorates.
Therefore, by adopting the configuration of the present invention, not only the apparatus can be miniaturized, but also the working time can be shortened and the productivity can be improved.

In the food case manufacturing apparatus of the present invention, it is preferable that a protruding portion protruding inward is provided at a lower portion of the through hole of the pallet.
By providing the protrusions, it is possible to prevent the blank from falling. Moreover, it is possible to prevent the blank from rotating or being displaced in the through hole.

  According to the present invention, a blank cut out from a sheet material can be molded without causing warpage, and thus a problem during molding can be prevented. In addition, the apparatus can be reduced in size and productivity can be improved.

1 shows an embodiment of a food case manufacturing apparatus according to the present invention, and is a plan view showing a cutting means. It is a principal part top view which shows the cutter die of the food case manufacturing apparatus shown in FIG. It is principal part sectional drawing of the cutter die which follows the AA line shown in FIG. It is a figure explaining cutting of a blank, (a) shows the state before cutting out, (b) shows the state after cutting out. It is a figure explaining transfer of the cut-out blank, (a) is a figure seen from the upper part of a cutter die, and (b) is a figure seen from the side. It is a figure explaining a pallet, (a) is a principal part top view, (b) is principal part sectional drawing which follows the BB line. It is principal part sectional drawing explaining a shaping | molding means. It is a figure which shows the case for foodstuffs, (a) is a front view, (b) is a side view.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows an embodiment of a food case manufacturing apparatus according to the present invention. This food case manufacturing apparatus 100 manufactures a food case by molding a blank 11 cut out from a sheet material 10 that is a raw material of a food case (see FIG. 8). A cutting means 50 for cutting out 11, a pallet 60 for storing a plurality of blanks 11, a transfer means 70 for fitting the blanks 11 into the pallets 60, a forming means 80 for drawing the blanks 11, and a pallet 60 as a set of blanks 11 Slide means 65 for reciprocating from the insertion position to the molding position.

As shown in FIG. 1, the food case 12 manufactured by the food case manufacturing apparatus 100 is formed by pressing the oval blank 11 with a heated mold (molding means 80) as shown in FIG. 8. It is formed in a cup shape having an elliptical bottom portion 12a as shown, and a peripheral wall portion 12b rising obliquely upward from the bottom portion 12a.
In addition, as a shape of the case for foodstuffs manufactured, there are a round shape, a square shape, a rectangular shape, and the like in addition to the oval shape, and the shape is not limited.

  As a material of the sheet material 10 from which the blank 11 is cut out, a thin paper, a plastic film, an aluminum foil, or a material produced by processing a laminated sheet material composed of two or more of these can be used. A laminate of terephthalate (PET) can be used. In addition, the thickness of the sheet | seat material 10 shall be about 10 micrometers-200 micrometers.

The cutting means 50 presses the blade portion 21 against the sheet material 10 by sandwiching the sheet material 10 between the blade die 20 having the blade portion 21 disposed along the outer shape of the blank 11 and the blade die 20. And an anvil 30.
The blade die 20 is formed in a flat plate shape by, for example, high-tensile steel and is installed on the magnet base 40. And the blade part 21 arrange | positioned along the external shape of the blank 11 is protrudingly formed in the upper surface of the cutter die 20. FIG.
The blade portion 21 protrudes from the upper surface of the blade die 20 (see FIG. 2), is formed in a pattern along the outer shape of the blank 11, and a plurality of such patterns are arranged at a predetermined interval. In the food case manufacturing apparatus 100 shown in FIG. 1, a plurality of rows in which four patterns along the outer shape of the blank 11 are arranged along the longitudinal direction are arranged. The blade portion 21 is integrally formed with the blade die 20 by machining or etching.

Further, as shown in FIG. 2, the blade die 20 is provided with a plurality of small holes 22 on the inner side surrounded by the blade portion 21. When the blank 11 is cut out from the sheet material 10, a suction mechanism 25 for sucking the blank 11 through these small holes 22 is connected (FIG. 3), and the blank 11 cut out from the sheet material 10 is held in a flat state. can do.
In addition, as shown in FIG. 2, the small hole 22 is formed in multiple numbers inside the blade part 21 so that a suction | attraction force may be exhibited equally according to the shape and magnitude | size of the blank 11 to shape | mold. .

The anvil 30 is formed of a cylindrical roll with a metal such as stainless steel. And it is set as the structure which presses the blade part 21 of the blade die 20 against the sheet material 10 by rotating this anvil 30 on the blade die 20.
Moreover, the front-end | tip of the blade part 21 and the outer peripheral surface of the anvil 30 are arrange | positioned with a predetermined space | interval (clearance), and it is set as the structure by which the blank material 11 is piled up on the sheet material 10, and the dummy material 13 is piled up. . When the sheet material 10 is disposed on the blade portion 21 side and the dummy material 13 is disposed on the anvil 30 side and the anvil 30 is rotated on the sheet material 10 and the dummy material 13, the tip of the blade portion 21 causes the sheet material 10 to move. The blade portion 21 and the anvil 30 are not in contact with each other, but the tip of the blade portion 21 is configured to bite into the midway position of the dummy material 13.

The pallet 60 is formed in a flat plate shape, and a through hole 61 capable of holding the blank 11 is formed. The through hole 61 is formed to be slightly smaller than the outer shape of the blank 11 so that the inner peripheral surface thereof is in contact with the outer peripheral edge of the blank 11. Further, as shown in FIG. 6A, a plurality of through holes 61 are arranged at a predetermined interval. Further, as shown in FIG. 6B, a protrusion 62 protruding inward is provided at the lower part of the through hole 61 over the entire circumference.
The transfer means 70 is made of, for example, vacuum, and as shown in FIGS. 5 and 6, the blank 11 cut by the cut-out means 50 is handled in a correct posture and is fitted into the through hole 61 of the pallet 60.
The pallet 60 is slid by the slide means 65 from the assembly position of the blank 11 to the molding position to reciprocate. For example, the sliding means 65 is provided with wheels at both ends of the pallet 60, and a mechanism for operating the wheels along rails previously laid in the sliding direction of the pallet 60. A mechanism such as a reciprocating motion using power such as air pressure can be used.
Moreover, the shaping | molding means 80 is comprised with the shaping | molding die 81 and the punch 82, as shown in FIG. In a state where the pallet 60 is disposed between these forming dies 81 and the punch 82 (forming position), the blank 11 in a state where the punch 82 is held on the pallet 60 through the through hole 61 of the pallet 60 is formed into the forming die. By pressing to 81, the blank 11 can be drawn into a predetermined shape.

A method for manufacturing the food case 12 using the food case manufacturing apparatus 100 configured as described above will be described.
First, as shown in FIG. 4A, the sheet material 10 to be processed is arranged between the blade die 20 and the anvil 30 with the dummy material 13 being stacked thereon. Then, the anvil 30 is rotated and moved on the cutter die 20 from the upstream side (position on the cutter die 20 side indicated by a solid line in FIG. 1) toward the downstream side (position on the cutter die 20 side indicated by a two-dot chain line in FIG. 1). Then, the sheet material 10 is sequentially pressed against the blade portion 21. The height of the blade portion 21 is formed higher than the thickness of the sheet material 10, and the tip of the blade portion 21 passes through the sheet material 10 and overlaps the sheet material 10 as shown in FIG. A predetermined amount is cut into the dummy material 13. Therefore, the sheet material 10 is punched along the pattern shape of the blade portion 21, and the blank 11 is manufactured. Further, when the blank 11 is cut out from the sheet material 10, the blank 11 is held flat by the suction mechanism 25 through the small hole 22.

The blank 11 manufactured in this manner is placed on the blade die 20 in the correct posture by the suction mechanism 25, and the blank 11 is handled in the correct posture by the transfer means 70 as shown in FIG. Each blank 11 is fitted into the through hole 61 by being transferred onto the pallet 60 waiting at the assembly position. The through hole 61 of the pallet 60 is formed to be slightly smaller than the outer shape of the blank 11 so that the inner peripheral surface thereof is in contact with the outer peripheral edge of the blank 11. Therefore, the position of the blank 11 is fixed in the through-hole 61 and is fitted into the through-hole 61, and the blank 11 is held in a correct posture without collapsing.
The blank 11 incorporated in the pallet 60 is arranged at the molding position as the pallet 60 slides. Then, the forming unit 80 presses the blank 11 against the forming die 81 by passing the punch 82 through the through hole 61 of the pallet 60 in a state where the blank 11 is incorporated in the through hole 61. Thereby, the blank 11 is drawn into a cup shape, and the food case 12 is manufactured.
The sheet material 10 is intermittently fed between the blade die 20 and the anvil 30. In the food case manufacturing apparatus 100, by using the long sheet material 10, the sheet material 10 is continuous. Thus, the blank 11 can be manufactured.

As described above, in the food case manufacturing apparatus 100 of the present invention, the blanking means 50 sucks through the small hole 22 provided in the blade die 20 before the blank 11 cut out is warped. 11 can be held flat. Therefore, the handling property at the time of transferring the blank 11 to the pallet 60 can be improved, and the blank 11 in the correct posture can be securely fitted into the through hole 61.
Furthermore, since the anvil 30 is formed by a roll, the contact between the anvil 30 and the blade portion 21 of the blade die 20 can be managed by a line rather than a surface, and management of parallelism and the like becomes easy. Therefore, the processing accuracy of the blank 11 can be improved.
Moreover, the blank 11 can be reliably cut out from the sheet material 10 by stacking and co-processing the sheet material 10 and the dummy material 13 and cutting with the blade portion 21 to the middle of the thickness of the dummy material 13. Moreover, since the blank 11 can be cut out without making the blade part 21 and the anvil 30 of the blade die | dye 20 contact, abrasion of the blade part 21 is prevented and durability can be improved.

Further, the position of the blank 11 is fixed in the through hole 61 of the pallet 60, and the blank 11 is held in the through hole 61 with the correct posture without breaking the posture of the blank 11 (without causing the warp of the blank 11). can do. The punch 82 is drawn by pressing the blank 11 held on the pallet 60. Therefore, it is possible to avoid occurrence of a positional deviation of the blank 11 and to prevent problems that occur during the molding process.
Further, since the pallet 60 is reciprocated by the slide means 65 and the blank 11 is moved to the molding position, the stroke of the punch 82 can be reduced. Therefore, not only can the apparatus be miniaturized, but also the working time can be shortened and productivity can be improved.

The effect of the present invention was confirmed by the following method.
As a sheet material, an oval blank having a major axis of 95 mm and a minor axis of 80 mm was punched out using a laminate of PET resin on one side of a paper material made of single gloss bleached craft. And it drawn in the case where a blank was transferred on a shaping | molding die using a pallet, and when the blank was directly mounted on the shaping | molding die by the transfer means, without using a pallet.
When the pallet was used, no warping occurred and good molding could be performed without any defects. On the other hand, when a blank was placed directly on a forming die without using a pallet, there was a case where a forming position shift occurred due to warpage.

In addition, this invention is not limited to the said embodiment, A various change can be added in the range which does not deviate from the meaning of this invention.
For example, in the said embodiment, although the blade die was formed in flat form and it was set as the structure which formed the anvil in cylindrical shape, it is not limited to this. It is good also as a structure which forms a blade part in the outer peripheral surface of a roll so as to oppose an anvil, and it is also possible to employ | adopt the structure which forms an anvil in flat form.
Moreover, although the projection part was provided over the perimeter of the through-hole of a pallet, it is not necessarily provided in a perimeter, and if it is a form which can prevent a blank fall, it will not be limited to this.

DESCRIPTION OF SYMBOLS 10 Sheet material 11 Blank 12 Food case 12a Bottom part 12b Perimeter wall part 13 Dummy material 20 Cutler die 21 Blade part 22 Small hole 25 Suction mechanism 30 Anvil 40 Magnet base 50 Cutout means 60 Pallet 61 Through-hole 62 Projection part 65 Slide means 70 Transfer Means 80 Molding means 81 Molding die 82 Punch 100 Food case manufacturing apparatus

Claims (2)

  A food case manufacturing apparatus for manufacturing a food case by molding a blank cut out from a sheet material that is a raw material of the food case, the cutting means for cutting out the blank, and a through-hole capable of holding the blank A pallet, a transfer means for fitting a blank cut out by the cutting means into the through-hole of the pallet, a forming means having a forming die and a punch for drawing the blank, and an installation position of the pallet in the blank Slide means for reciprocating to a molding position between the molding die and the punch, and the through hole of the pallet has an inner peripheral surface that contacts an outer peripheral edge of the blank, By pressing the punch through the through-hole of the pallet to the forming die at the forming position, Food casing manufacturing apparatus characterized by draw forming the blank.   The food case manufacturing apparatus according to claim 1, wherein a protrusion protruding inward is provided at a lower portion of the through hole of the pallet.

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