JPH0357632A - Manufacturing equipment for vessel made of paper - Google Patents

Abstract

PURPOSE:To enhance the product yield of a vessel made of paper by cutting a side plate piece from continuous paper just before winding it around a mandrel, separating and carrying the side plate piece itself and winding this on a drum just after cutting without converting the pullout direction. CONSTITUTION:Continuous paper 1 wound in a roll-shape is fed and carried by a carrier 11. A perforationlike cutting line 2 is formed to the width direction of the continuous paper by a perforation hole forming body 12 at a time for carrying it. The part becoming a side plate piece 6 is comparted and furthermore sizing is performed on the single side of continuous paper by a sizing applicator 13. Thereafter the part becoming the side plate piece 6 is cut off according to the perforation-like cutting line by a cutter 15. Simultaneously this part is fixed to a winding and molding core 161 by a presser. The fixed side plate piece 6 is would around the core 161 by a molding mechanism having a pair of wings. The sizing part of the laminated part of the side plate piece 6 is pressed and bonded. A thermal adhesive resin layer is previously formed to the outside of a bottom plated attracted to the end face of the core 161. The end side of the side plate piece 6 is folded toward the inside, heated, pressed and bonded to the thermal adhesive resin layer.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an apparatus for manufacturing a paper container formed of a side plate and a bottom plate, and particularly relates to a manufacturing device for a paper container formed of a side plate and a bottom plate, and in particular, a bottom plate prepared in advance immediately after cutting the side plate from continuous paper. This invention relates to a paper container manufacturing device that is attached to a paper container.

[Prior Art] A conventional apparatus for assembling and manufacturing containers of this type is described in, for example, Japanese Patent Publication No. 53-43870.

In this conventional technique, a fan-shaped container side plate forming piece is cut out from a roll of raw material paper using a cutter, and this single leaf-shaped container side plate forming piece is transported in a horizontal state with the plate surface facing in the vertical direction.
At this destination, it is taken out vertically between the mandrel and the guide rod for winding it into a cylindrical shape so that the plate surface faces left and right, and is pressed around the mandrel with a star wheel to shape and glue. It is made into a cylindrical shape.

[Problems to be Solved by the Invention] In the prior art described above, a fan-shaped container side plate forming piece is first cut out from a roll of raw material paper using a cutter, and the cut out forming piece is further conveyed horizontally via a conveyance mechanism. A device that feeds the robot in the direction of rotation and pulls it out vertically by sandwiching it between a core metal attached to the end of a support arm that projects radially around the rotating body and a guide rod that extends downward from the conveyor plate. It is.

Therefore, in the process of conveying and pulling out, the formed piece may be bent when it is conveyed, or when it is pulled out, it will not be wrapped accurately around the mandrel and both ends of the formed piece will overlap in a misaligned manner, so the cylindrical body made is It is unsuitable as a side plate of a container, and there is a problem that the yield of the product is affected by the work environment such as humidity.

In order to eliminate the above-mentioned problems, this invention separates the side plate pieces forming the container side plate from continuous paper just before wrapping them around the mandrel, thereby separating and transporting the side plate pieces themselves, and changing the direction of the drawer. To provide a large quantity of paper containers at low cost with a high product yield by wrapping the container immediately after cutting without cutting.

[Means for Solving the Problems] The object of the present invention described above is to provide a continuous paper conveying device that conveys a long continuous paper in its length direction, and a plurality of perforated cutting lines in the width direction of the continuous paper. a first gluing machine that applies glue to one side in the longitudinal direction of the continuous paper; A heat-adhesive resin layer was formed on the end face of one of the plurality of wrapped cores, each of which had a cutter for cutting from a shaped cutting line and a side plate piece cut from continuous paper protruding around the core rotating body. a bottom plate supply mechanism that supplies the bottom plate in advance; a presser that presses the side plate pieces onto the circumferential surface of the wrap-forming core to which the bottom plate is adsorbed; and a wrap-forming mechanism that wraps the side plate pieces around the wrap-form core. This wrap-forming mechanism applies pressure to the overlapping portions of the side plate pieces wrapped around the wrap-forming core, and a pressing body adheres the overlapping portions with glue applied to the overlapping portions, and the overlapping portions are adhered to form a tube. By bending the end edge of the cylindrical side plate that has become a shape along the outer surface of the bottom plate, the end edge of the cylindrical side plate is heated and pressed to the heat-adhesive resin layer coated on the outer surface of the bottom plate. This is accomplished by each having a bottom plate attachment mechanism for attaching the end edge to the outer surface of the bottom plate by adhesively bonding the end side to the outer surface of the bottom plate.

[Function] In the paper container manufacturing apparatus of the present invention, a continuous paper wound into a roll is fed out and conveyed by a conveying device, and during this conveyance, a perforated cut line is formed in the width direction of the continuous paper by a perforation forming member. are formed, the portions that will become the side plate pieces are divided, and then glue is applied with a gluing machine so as to be parallel to one side of the continuous paper.

After this gluing is completed, a cutter is used to cut along the perforated cutting line to separate the portion that will become the side plate piece at the tip.

Immediately before the side plate pieces are cut off, they are positioned below the wrapped core that has previously adsorbed the bottom plate, and at the same time as they are cut off, they are pressed against the wrapped oval core with a presser and fixed to the wrapped core. .

This fixed side plate piece is wrapped around the wrapping molding core by a waiting forming mechanism having a pair of wings, and the overlapping portion of the side plate piece is bonded by applying pressure with a pressing body, and the wrapped oval core is bonded. By bending the edge of the side plate piece inward with a bottom plate attachment device and applying heat and pressure to the heat-adhesive resin layer previously formed on the outside of the bottom plate that is adsorbed to the end face of the paper The container can be completed.

[Example] Examples will be described with reference to the drawings.

As shown in FIGS. 1 and 2, the paper container manufacturing apparatus of the present invention includes a conveying device l1 that feeds out and conveys continuous paper l wound into a roll from its front end side at a constant speed, and paper l
a perforation forming body 12 that forms a perforation-like cutting line 2 in the width direction of the paper, a gluing machine 13 that applies thermosetting glue 3 to one side of the continuous paper l, and the perforation-like cutting line. a cutter 15 that cuts the portion 5 that will become the side plate divided by , a presser 17 that presses the side plate piece 6 cut from the continuous paper 1 onto a wrap-forming core 161 protruding around the rotating body;
a wrapping forming mechanism 18 having a pair of wings for wrapping the side plate piece 6 around the wrapping forming core 161;
A suppressor I9 that pressurizes the overlapping portion of the side plate piece 6 wound around the wrap-forming core by the wrap-forming mechanism and joins the overlapped portion with glue dotted on the overlap portion, and an end face of the wrap-form core. a bottom plate supply mechanism 20 that supplies the bottom plate 7 to the bottom plate 7;
It consists of a bottom plate attachment mechanism 21 that adheres the bottom plate 7 to the side plate 8 by bending one end of the side plate 8 to a heat-adhesive resin layer previously formed on the outside of the bottom plate 7 and applying heat and pressure. .

As shown in FIGS. 1 and 2, the conveyance device 11 that conveys the continuous paper 1 wound into a roll has a pair of feed ports 112, 112 forming a first conveyance section Ill that continuously conveys the continuous paper 1. and a feed roller 115 forming a second conveyance section 114 for intermittently feeding the continuous paper 1 sent from the first conveyance section III.

Incidentally, a slack allowance l^ of the continuous paper l is naturally provided between the first and second conveyance sections III and 114.

The perforation forming body l2 that forms perforation-like cutting lines 2 in the width direction of the continuous paper 1 has a perforation forming protrusion that forms perforation-like cutting lines 2 on the circumferential surface of the roll body that is paired with the feed roller 115. The roll body is attached so that it bulges in an arc shape in the circumferential direction and forms a wave shape at the center portion of the roll body, and the continuous paper 1 sandwiched between the feed roller 115 has a center portion of the paper width that is arcuate in the feed direction. A wavy perforated cutting line 2 that bulges out is provided at intervals determined by the conveyance speed in the second conveyance section 114,
The perforated cutting line 2 defines a portion 5 that will become a side plate.

Gluing machine 1 that applies glue 3 in a straight line parallel to one side of continuous paper 1
3 pressure-feeds the glue 3 from a glue container (not shown) to the gluing head 131 via the feeding pipe 132, and
31 moves up and down to apply the glue 3 to the paper surface.

The cutter I5 has an upper blade 151, a lower blade 152, and a lower blade 152.
The upper and lower blades each have a curved and wavy shape similar to the perforated cutting line 2, and a sensor (not shown) moves the perforated cutting line 2.
, and cut the connecting portion between the perforations along this perforation-like cutting line to separate the portion 5 that will become the side plate from the leading end of the continuous paper 1.

The wrapped oval core 161 is attached to the end face of a mounting body 163 that protrudes from each side of the octagonal core rotating body 16, as shown in FIGS. It rotates intermittently depending on the conveyance amount of the paper 1.

Further, each of the wrapped cores 161 and 161 has an air suction and blowout hole for adsorbing the bottom plate 7, which will be described later.

The holding tool 17 is attached to the wing mounting base 1 as shown in FIG.
A connecting rod 17 is attached to an elevating block (not shown) at one end of the push block 171, which has an elongated hole 172 that is slidably inserted into 81 and allows the wing attachment shaft 182 to pass through.
3, and a presser piece 174 whose other end has an oblique end surface so as to be able to abut against the side surface of the tapered wrap-forming core 161 is inserted into the push block 172 via a protrusion.

As shown in FIGS. 4 and 6, the winding mechanism 18 holds a wing mounting shaft 182 on a wing mounting base 181, and holds the winding core 161 from both sides as shown in FIG. A pair of wings 1113 and 184 are pivotally attached, each having a curved concave portion 185 in the shape of a half-split shape, and a mounting portion 186 having a mounting hole 187 below through which the shaft is inserted.

In the figure, 188 is a bushing for a bearing.

As shown in FIG. 3, the bottom plate attachment mechanism 21 includes a bending machine 211 that bends the end of the side plate piece 6 to the outside of the bottom plate 7, and a bonding machine 2.
12, a winding finishing part 2+3, and an air blowing means for blowing out the container a as a product from the winding molding core.

7 to 10 are explanatory diagrams of the winding forming operation, and show the wing 183. An operating rod 225 for opening and closing 184 is pivotally attached to one end of the lifting block, and the other end of a blank table lifting rod 226 with a blank table 189 attached thereto is attached to one end of the lifting block. A guide rod connected thereto and having a fixed block 227 attached thereto is inserted therethrough.

The paper container manufacturing apparatus of the present invention is comprised of the above-mentioned mechanisms, etc., and the procedure for manufacturing paper containers using this apparatus will be described below.

As shown in FIGS. 1 and 2, the continuous paper 1 wound into a roll is drawn out and conveyed by a first conveyance section III composed of feed rollers 112, 112.

A loop is formed in the continuous paper l between the second conveyance unit [4] which has a slower feed speed than the first conveyance unit 111, so that the feed speed can be adjusted.

Perforation forming body 1 attached to feed reroller 115
2, the central portion of the continuous paper 1 bulges out in the feeding direction at intervals corresponding to the width of the side plate, and a wavy perforated cutting line 2 is formed.

Next, as the continuous paper I is conveyed, a first glue application machine 13 applies glue 3 near one edge thereof.

Thereafter, the cutter 15 operates to cut along the perforated cutting line 2 and separate the side plate piece 6 from the continuous paper 1.

This side plate piece 6 is placed on a blank table 189 waiting in front of the delivery side, and is placed by being displaced to a fixed position on the table using a pin or the like.

When the side plate piece 6 is placed on the blank table 189 held horizontally as shown in FIG. When the side plate piece is properly placed on the blank table 189, a sensor (not shown) detects this and operates a drive system (not shown) to move the blank table 189 through the lifting block.
rises.

When the fixed block 227 and the blank table lifting rod 226 rise due to the rise of the lifting block, the push block +71 rises via the spring guide rod, and the presser piece 174 attached to the push block 171 moves to the center of the side plate piece 6. Wrap around the molded core! 61,
The blank table 189 pushes up both ends of the side plate piece 6 and bends the side plate piece 6 into a U-shape as shown in FIG.

When the elevating block has finished rising a certain amount, the elevating block rises while maintaining its position, and the wings 183,1
84 is rotated clockwise and counterclockwise about the shaft 182 using the operation rod 225, and the side plate piece 6 is pressed around the wrapped core 161 by the curved concave portion 185.

In this case, since the length of the side plate piece 6 is slightly longer than the circumferential length of the wrapped core 161, the ends to which the glue 3 is attached overlap. As shown in FIG. 10, a suppressor 19 descends from above onto this overlapping portion, pressurizes the overlapping portion, and performs bonding with a thermosetting glue such as starch glue.

When the side plate piece 6 has been wrapped around the wrapped core 161 and the ends have been joined, the heat suppressor 19 is raised,
The lifting block descends and returns to the state shown in Figure 7 again.
Prepare for next processing.

Thereafter, the core rotating body 16 rotates 178 times, and the wrapped core 161, in which the side plate piece 6 described above is processed into a cylindrical shape, wraps one end (small diameter side) of the cylindrical side plate 8 as shown in FIG. The bending machine 2 is attached to the heat-adhesive resin layer previously formed on the bottom plate 7 which is adsorbed to the end surface of the molding core 161.
11. After being bent by the adhesive machine 212, the adhesive is bonded by applying heat and pressure, and the container a as shown in FIG. 5 is blown out through the bottom finishing part 213 and taken out.

As shown in FIG. 5, two parallel perforation-like cutting lines m, m and the perforation-like cutting line 2 are formed in the width direction of the side plate piece 6, that is, in the height direction of the paper container a. By providing a perforation-like cutting and folding line m' along the perforation-like cutting line m, when the final user takes out baked confectionery from the paper container a and eating it, the paper container a is cut along the perforation-like cutting line m, It becomes easier to cut and eat from m'.

[Effects of the Invention] Since the present invention is configured as described above, it produces the effects described below.

In the paper container manufacturing apparatus of claim 1, the side plate forming piece (blank) that is to become the paper container is not transported after separation, but is wrapped and formed in a body-wrapping manner with a wrapping-forming core as it is immediately after separation, and the periphery of the bottom of the side plate forming piece (blank) is Since the paper container is created by applying heat and pressure to the resin layer of the bottom plate 7 and adhering it, there is no bending or misalignment of the position of the blank against the molded core. Since there is no need to apply glue along the lines 2, automation is easy, product yield is high, and inexpensive paper containers can be provided in large quantities.

According to claim 2, it is very suitable for use as a paper container for heated foods or baked confectionery because the glued portion does not puncture.

According to claim 3, it is possible to easily create a paper container with a slightly smaller diameter bottom.

According to claim 4, the paper container a can be blown out from the molding core and taken out without using a takeout robot arm or the like.

According to the fifth aspect of the present invention, the side plate piece at the bottom can be easily bent inward from the continuous corrugated perforated cut line, and a paper container with a corrugated upper edge and a good appearance can be produced.

According to claim 6, the side plate piece 6 can be easily folded inward from the perforated cutting/folding line m'.

According to claim 7, the paper container a is cut along a perforated cutting line m,
This makes it easy for the final user to take out the contents as it is easy to tear them into pieces.

[Brief explanation of drawings]

The drawings all show one embodiment of the present invention, and Fig. 1 is a schematic side view of the paper container manufacturing apparatus, Fig. 2 is a schematic plan view of the same, Fig. 3 is a schematic plan view of the main parts, and Fig. 4. 5 is a perspective view of the paper container, FIG. 6 is a perspective view of the wrapping mechanism, and FIGS. 7, 8, 9, and 10 are paper containers, respectively. It is an explanatory view showing a procedure for making a container.

Claims (1)

[Claims] 1. In an apparatus for manufacturing a paper container having a bottom plate at the bottom of a cylindrical side plate, a continuous paper conveying device 11 for conveying a long continuous paper 1 in its length direction; Perforation forming body 1 forming a plurality of perforation-like cutting lines 2 in the width direction of continuous paper 1
2, a gluing machine 13 that applies glue 3 to one side in the length direction of the continuous paper 1, and a part 5 that will become a side plate divided by the perforated cutting line 2 from the perforated cutting line 2. A heat-adhesive resin is attached to the end face of one of the plurality of wrapping molded cores 161, 161 in which the cutter 15 and the side plate piece 6 cut from the continuous paper 1 are protruded around the core rotating body 16. A bottom plate supply mechanism 20 that supplies the layered bottom plate 7 in advance, a presser 17 that presses the side plate piece 6 onto the circumferential surface of the wrap-around molded core 161 to which the bottom plate 7 is adsorbed, and the wrap-around mold core. A winding forming mechanism 18 wraps the side plate piece 6 around the winding core 161, and this winding forming mechanism 18 pressurizes the overlapping part of the side plate piece 6 wrapped around the winding forming core 161, and the glue 3 applied to the overlapping part. The ends of the cylindrical side plate 8 are bent along the outer surface of the bottom plate 7, and the ends of the cylindrical side plate 8, which is formed into a cylindrical shape by adhering the overlapping portions, are bonded to the presser body 19. Each of the bottom plate mounting mechanisms 21 includes a bottom plate attachment mechanism 21 for attaching the edge 8a to the outer surface of the bottom plate 7 by heating and pressing the edge 8a to the heat-adhesive resin layer coated on the outer surface of the bottom plate 7. Paper container manufacturing equipment. 2. The paper container manufacturing apparatus according to claim 1, wherein a thermosetting glue such as starch glue is used as the glue. 3. The paper container manufacturing apparatus according to claim 1 or 2, wherein the perforated cutting line 2 is formed in an arc shape. 4. The paper container manufacturing apparatus according to claim 1, wherein the paper container a consisting of the cylindrical side plate 8 to which the bottom plate 7 is attached by bonding is wound and blown away from the forming core 161 to the outside. 5. The container according to claim 1, wherein at least one of the plurality of perforated cutting lines 2, 2 facing the bottom plate 7 of the paper container a is formed into a continuous wave shape. Paper container manufacturing equipment. 6. The paper container manufacturing apparatus according to claim 1, wherein the perforated cutting/folding line m' is formed close to and along the perforated cutting lines 2, 2. 7. The paper container manufacturing apparatus according to claim 1, wherein at least one perforation-like cutting line m is formed in the width direction of the side plate piece 6.