JP3010144B2 - Paper towel wrapping equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is a paper towel packaging equipment
About the.

[0002]

2. Description of the Related Art FIG. 15 is a single view of a paper towel product A.
(A) is a schematic perspective view, (B) is a BB sectional view of (A). As shown in the figure, the paper towel product A is a paper towel 1 made of pulp impregnated with a chemical solution and packaged in a packaging film 2 made of a thermoplastic resin such as a polyethylene film or vinyl chloride. Paper towel 1
It is folded in two directions along its longitudinal direction, further folded in two along its longitudinal direction, and finally folded vertically in the middle in its longitudinal direction along its width direction. In this way, the paper towel 1 is folded compactly and easily. The wrapping film 2 is a rectangular piece, and in order to wrap the paper towel 1,
It is folded, and both end portions 7, 7 are heat-sealed, and the upper central portion 6 is heat-sealed. To use the paper towel product A, it is only necessary to pull the central portion 6 of the upper surface of the packaging film 2 in the width direction. When the central portion 6 of the upper surface of the packaging film 2 is pulled in the width direction, the packaging film 2 is torn along the central portion 6 of the upper surface and further torn along both edges 7 of the packaging film 2. Therefore, if the paper towel 1 is taken out of the packaging film 2, it can be used immediately. Moreover, the taken out paper towel 1 is easy to spread and easy to use.

[0003]

However, there is a problem that there is no paper towel manufacturing apparatus capable of efficiently mass-producing the paper towel 1. There is also a problem that there is no paper towel packaging apparatus or paper towel product manufacturing equipment that efficiently wraps the paper towel 1 with the packaging film 2 to obtain the paper towel product A. Furthermore, the conventional paper towel product manufacturing equipment, as the high-speed operation, the paper towel packaging equipment,
The heat-sealing time of the packaging film 2 is shortened, and the heat-sealing of the central portion 6 and the both end portions 7 of the upper surface of the packaging film 2 wrapping the paper towel 1 cannot be performed. Even if the measure is taken by raising the temperature of the heat seal, it is possible that the melted packaging film 2 adheres to the heat seal roll side due to its adhesiveness and heat seals the packaging film 2 well. Can not. In any case, since the heat sealing cannot be performed well, the position of the paper towel 1 in the packaging film 2 is shifted, and the paper towel 1 cannot be packaged at a high speed with the packaging film 2, so that the paper towel product A is mass-produced. There is a problem that you can not. Furthermore, an attachment conveyor is incorporated in the conventional packaging apparatus, and there is a folding apparatus for wrapping the paper towel 1 conveyed by the attachment conveyor with a packaging film sheet. However, the paper towel is successfully applied to the packaging film sheet. There is a problem that there is a lot of loss because it is not superimposed and is not inserted into the folding device well.

In view of such circumstances, the present invention can reliably seal paper towels with a packaging film, prevent misalignment of the paper towels in the packaging film, eliminate product loss, and efficiently produce a large amount of paper towels. an object of the present invention is to provide a production can be paper towel packaging equipment.

[0005]

[Means for Solving the Problems]

A paper towel wrapping device according to claim 1 is a polymerization section for superposing a paper towel on a packaging film sheet while running a continuous packaging film sheet fed from a raw roll, and the paper towel. Inside, the packaging film sheet is folded along its running direction, the facing edges in the width direction of the packaging film sheet are overlapped with each other, and a wrapping portion for wrapping a paper towel is provided, and the width of the packaging film sheet is A center seal portion for heat-sealing both edge portions overlapped in a direction, and a temporary bonding portion for temporarily bonding a gap between adjacent paper towels wrapped in the packaging film sheet in the packaging film sheet, A film dissolving unit that dissolves the gap part in the packaging film sheet by heat, The gap portion was dissolved in serial packing sheet was cooled and solidified, Ri Do from the seal cutting unit to cut the said gap portion, wherein the polymerization unit, the roll peripheral
On a plane, at equal intervals in the direction of rotation,
With a plurality of grooves formed along
With a circumferential groove formed along the direction of rotation
A first roll rotatably provided in a vertical plane
On the peripheral surface along the direction of rotation
A second row rotatably provided in a vertical plane provided with a turning groove
, A circumferential groove of the second roll, and a circumferential groove of the first roll.
A wire wound around the wire, and provided below the wire,
Belt conveyor that runs with the packaging film sheet
And characterized by the following. The paper towel wrapping device according to claim 2 is a continuous wrapping wrapper fed from a raw roll.
While running the film sheet, the packaging film sheet
A polymerization unit for superposing a paper towel on the paper
With the streamer inside, run the packaging film sheet
Fold along the direction, the width of the packaging film sheet
Paper edges by overlapping the opposite edges in
And a wrapping portion for wrapping the packaging film sheet.
Heat seal the overlapping edges in the width direction
Center seal part and the packaging film sheet
Before being wrapped in the packaging film sheet
A temporary bonding portion for temporarily bonding a gap between the paper towels,
The gap in the packaging film sheet is heated by heat.
And a film dissolving section for dissolving
The melted gap portion in the sheet is cooled and solidified,
A seal cutting section for cutting the gap portion, wherein the temporary bonding section is formed by a pair of rotatable heat seal rolls provided with heating sections extending in the axial direction of the roll at equal intervals in the circumferential direction on the roll circumferential surface. The packaging film sheet travels between the pair of heat sealing rolls, and the heating section temporarily bonds the gap portion in the packaging film sheet. The paper towel wrapping device of claim 3 is
A series of wrapping film sheets unwound from the web roll
While running the paper, place paper and paper on the packaging film sheet.
The overlapping part where the towel is overlaid and the paper towel are inside
The packaging film sheet along its running direction.
Folded in the width direction of the packaging film sheet
Overlap the opposite edges and wrap the paper towel
And a non-wrapping section, you in the width direction of the wrapping off Irumushito
To heat seal the edges of both ends
In the packaging film sheet,
Adjoining paper woolen wrapped in a wrapping film sheet
A temporary bonding portion for temporarily bonding a gap portion between the
The gap in the film sheet is melted by heat.
Film dissolving part to be
The melted gap portion is cooled and solidified, and the gap portion is
The film melting section comprises a hot plate that generates heat, and a mesh belt that travels between the hot plate and the packaging film sheet. A heat transmission portion and a heat blocking portion are provided alternately in the direction, and the mesh belt runs in synchronization with the packaging film sheet. 5. The continuous paper wrapping device according to claim 4, wherein the continuous wrapping film is unrolled from a raw roll.
While running the sheet, place it on the packaging film sheet
The polymerization section where paper towels are overlaid, and the paper towels
With the packaging film sheet in the running direction
Along the width of the packaging film sheet.
Wrap the paper towels on top of each other
The wrapping portion to be wrapped and the width direction of the packaging film sheet
Heat seal the overlapped edges at
Inter seal portion, in the packaging film sheet,
The adjacent paper or paper wrapped in the wrapping film sheet
A temporary bonding portion for temporarily bonding a gap between the squeezes;
The gap in the film sheet is melted by heat.
The film dissolving part to be disassembled and the packaging film sheet
Cooling and solidifying the melted gap portion in the gap portion;
Consists of a seal cutting unit to cut the amount, the seal cutting unit, a roll at equal intervals in the circumferential direction in the circumferential surface, rotatable pair of cooling the seal with a cooling unit and a cutter extending in the axial direction of the roll The packaging film sheet travels between the pair of cooling seal cutting rolls, and the cooling unit solidifies and cuts the gap in the packaging film sheet by the cooling unit.

[0007] In the present specification, the term "double-folding" refers to a folding method in which the double-folding is performed from the center to the left and right.

[0008]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view of a paper towel product manufacturing facility. As shown in the figure , the paper towel product manufacturing equipment is configured such that a paper towel manufacturing apparatus 10 on the left side in the figure and a paper towel packaging apparatus 90 on the right side in the figure are connected in series. Reference numerals 1R and 1R denote raw rolls of the paper towel sheet, and any one of the raw rolls 1R is supplied to the paper towel manufacturing apparatus 10 via a known joint 3a. I have. The joining portion 3a is a device for connecting the tip of the remaining material roll 1R to the tail end when one of the material rolls 1R is fully fed. Reference numerals 2R and 2R denote raw rolls of the packaging film sheet, and either one of the raw rolls 2R is connected to the paper wiping and wrapping apparatus 90 via a known joint 3b.
It is supplied to. The joining portion 3b is a device for connecting the tip of the remaining material roll 2R to the tail end when one of the material rolls 2R is fully fed.

Next, the paper towel manufacturing apparatus 10 will be described. The paper towel manufacturing apparatus 10 includes the embossing press unit 2.
0, paper towel sheet cutting section 30, primary folding section 4
0, a secondary folded portion 50, a chemical solution impregnated portion 60, a cut portion 70, and a vertical folded portion 80 are provided. The raw sheet 1T unwound from the raw roll 1R passes through the joining portion 3a and passes through the embossing press section 20, the paper towel sheet cutting section 30, the primary folding section 40, the secondary folding section 50, the chemical liquid impregnating section 60, The paper is toweled 1 by being sequentially processed by the cut unit 70 and the vertical folding unit 80.

First, the embossing press section 20 will be described.
As shown in FIG. 1, the embossing press section 20 includes a pair of opposing embossing press rolls. Each of the pair of embossing press rolls is formed with embossed projections and depressions on the peripheral surface of the roll, so that a convex portion of one embossing press roll fits into a concave portion of the other embossing press roll. . Therefore, when the raw sheet 1T is passed between the pair of embossing press rolls, an embossing die is formed on both front and back surfaces of the raw sheet 1T, and the raw sheet 1T is embossed. In addition,
The embossing press section 20 may be omitted, but the raw sheet 1T embossed as in the present embodiment is preferable because its bulk is increased.

Next, the paper towel sheet cutting section 30 will be described. The paper towel sheet cutting unit 30 is configured to use the raw sheet 1
T is cut in multiple rows in the width direction to form a multi-row paper towel sheet 1S. As shown in FIG. 1, the paper towel sheet cutting unit 30 includes a pair of cutter rolls. A plurality of cutters are mounted on the roll peripheral surface of one of the cutter rolls at equal intervals in the rotation direction. A plurality of circumferential grooves corresponding to the cutters are formed on the peripheral surface of the remaining cutter roll. Therefore, when the raw sheet 1T is passed between the pair of cutter rolls, the raw sheet 1T is cut in multiple rows in the width direction to form a multi-row paper wetting sheet 1S. The number of cutters on the cutter roll may be any number. If the desired number of rows is N, the number of cutters on the cutter roll may be (N-1). In the present embodiment, the paper towel sheet 1
For simplicity, the number of columns N in S will be described as 2.

Next, the primary folding section 40 will be described.
FIG. 3 is a schematic perspective view of the primary fold 40 and the secondary fold 50. As shown in the figure, the primary folding section 40 is composed of a multi-row known folding device 41. Each of the folding devices 41 of the primary folding section 40 is for folding a continuous paper towel sheet 1S that travels in the traveling direction, and performs double folding. The number of rows of the multi-row folding device 41 may be the same as the number N of rows of the paper towel sheet 1S. The paper towel sheets 1S running in multiple rows are passed through the corresponding folding devices 41. Then, each of the folding devices 41 folds the paper towel sheet 1S in each row along the running direction, and performs double folding.

Next, the secondary folding section 50 will be described.
As shown in FIG. 3, the secondary folding unit 50 is configured such that a combination unit of a fold roller 52 and a known folding device 51 is arranged in multiple rows. Each fold roller 52
Is perpendicular to the running direction of the double-sided paper towel sheet 1S, and the leading edge of each fold roller 52 is positioned at the center line along the running direction of the double-sided paper towel sheet 1S. They are arranged to overlap. The combination unit of the folding device 51 and the fold roller 52 of the secondary folding unit 50 is for folding a continuous sheet running along the running direction and folding it in half. The number of rows of this combination unit may be the same as the number N of rows of the paper towel sheet 1S. The paper towel sheets 1S that travel in a multi-row folded in a double row are passed through the folding device 51 via the corresponding fold rollers 52. Then, each folding device 51 causes each of the rows of paper towel sheets 1S to be in a row.
Is folded in the middle in the width direction along the traveling direction and folded in half. Therefore, the paper wiping sheet 1S is formed by the primary folding section 40 and the secondary folding section 50.
Is folded into four along the traveling direction.

Next, the chemical liquid impregnation section 60 will be described. FIG. 4 is a cross-sectional view of the chemical liquid impregnation section 60. As shown in the figure, the chemical liquid impregnated portion 60 includes a pair of upper and lower nozzles 61, 61.
However, corresponding to the paper towel sheet 1S running in multiple rows,
They are arranged in multiple rows. A pair of upper and lower nozzles 6
Reference numerals 1 and 61 are arranged along the width direction of each paper towel sheet 1S. In all the nozzles 61, a plurality of ejection ports 62 are formed at equal intervals along the longitudinal direction. The ejection port 62 is a hole for ejecting a chemical solution. As the chemical, purified water, ethanol, propylene glycol, paraben and the like having a bactericidal action are desirable. In the drawing, the nozzle 61 is disposed in a gap between the folded paper towel sheet 1S and the paper towel sheet 1S.
This is preferable because the liquid can be sufficiently impregnated with the chemical solution.
The chemical liquid is ejected from all the ejection ports 62 of the pair of nozzles 61 corresponding to the paper towel sheets 1S in each row folded by the secondary folding section 50. Then, the chemical liquid is impregnated in the width direction of the paper towel sheets 1S in all the rows. In addition, since the paper towel sheets 1S in all rows are running, the entire surface of the paper towel sheets 1S in all rows is continuously impregnated with the chemical.

Next, the cutting section 70 will be described. 5 is a side view of a part of the cutting unit 70, the vertical folding unit 80 and the paper towel wrapping apparatus 90, FIG. 6 is an enlarged view of the cutting unit 70 and the vertical folding unit 80, and FIG. 7 is a feed roll 73 and a vertical folding roll 81. FIG. As shown in FIGS.
The cutting section 70 includes a cutter roll 71 and a feed roll 73 provided rotatably in a vertical plane.
On the roll peripheral surface of the former cutter roll 71, a plurality of cutters 72 extending in the axial direction of the cutter roll 71 are provided.
It is attached at equal intervals along the rotation direction of the cutter roll 71. In the drawing, the number of the cutters 72 is two, but any number may be attached.

A projection 74 extending in the axial direction of the feed roll 73 is attached on the roll peripheral surface of the latter feed roll 73 at equal intervals in the rotation direction of the feed roll 73.
The number of the protrusions 74 is set to 2, which is the same as the number of the cutters 72. Furthermore, as shown in FIG. 7, the projection 74 of the feed roll 73 is fixed by tightening a wedge-shaped holding member 75 with a bolt 76, but the fixing means is not particularly limited. And this cutter roll 71
And the feed roll 73 are arranged in a phase in which the positions of the cutters 72 and the protrusions 74 are alternately shifted.

Between the cutter roll 71 and the feed roll 73 of the cutting section 70, a multi-row paper towel sheet 1S
And the cutter roll 71 and the feed roll 73 are rotated in synchronization with the traveling speed of the paper towel sheet 1S. Any cutter 7 on cutter roll 71
When 2 comes in contact with the feed roll 73, the cutter 72 of the cutter roll 71 and the roll peripheral surface of the feed roll 73 always contact. For this reason, the paper towel sheets 1S in each row sandwiched between the cutter 72 of the cutter roll 71 and the roll peripheral surface of the feed roll 73 are cut along the width direction, respectively, to form a multi-row paper towel 1. Become.
If the multi-row paper towel sheet 1S continues to run and the cutter roll 71 and the feed roll 73 of the cutting unit 70 are continuously rotated in synchronization with the paper towel sheet 1S, the paper towels 1 having the same shape are continuously formed. Manufactured. Then, the multi-row paper towel 1 is sent to the vertical folding section 80.

Next, the vertical folding section 80 will be described. As shown in FIG. 6, the vertical folding section 80 is composed of a vertical folding roll 81 and a return roll 85 provided rotatably in a vertical plane. In the vertical folding roll 81, a plurality of grooves 82 extending in the axial direction are formed at equal intervals in the rotation direction of the vertical folding roll 81 on the peripheral surface of the roll. In the figure, the number of the grooves 82 is six, but any number may be used. This vertical folding roll 8
Numeral 1 is provided at a position where the protrusion 74 of the feed roll 73 fits into the groove 82. The vertical folding roll 81 can rotate synchronously so that its groove 82 fits with the protrusion 74 of the feed roll 73. A plurality of circumferential grooves 86 are formed on the peripheral surface of the vertical folding roll 81 by the vertical folding rolls 8.
1 are formed at intervals in the width direction. The rope 111 is wound around the circumferential groove 86 of the vertical folding roll 81, and details thereof will be described later. The rotation drive source of the vertical folding roll 81 is a motor (not shown). The return roll 8
5 is disposed below between the vertical folding roll 81 and the feed roll 73. In FIG. 7, the vertical folding roll 81 is used.
The groove 82 is formed by fixing the gap material 83 with a bolt 84, but the forming means is not particularly limited.

The paper towels 1 of all the rows sent to the vertical folding section 80 are sent between the feed roll 73 and the vertical folding roll 81 as shown in FIG. In addition, the paper towels 1 in all rows are sandwiched between the protrusion 74 of the feed roll 73 and the groove 82 of the vertical folding roll 81 in the middle in the traveling direction. Accordingly, a fold is formed in the center of the paper towel 1 in each row in the traveling direction, and the fold is fitted into the groove 82 of the vertical folding roll 81. Next, when the feed roll 73 and the vertical folding roll 81 are rotated, as shown in FIG. 6, the paper towels 1 of all the rows are folded while their folds are held in the grooves 82 of the vertical folding rolls 81. The lower half surface rests on the upper surface of the return roll 85. Further, when the vertical folding roll 81 is rotated, the paper towels 1 in all rows have their folds held by the grooves 82 of the vertical folding rolls 81, and the lower half of the folds pass over the upper surface of the return roll 85, The paper towel 1 in each row is folded with its upper half surface and lower half surface both overlapping each other, that is, folded vertically in two.

Next, the working process by the paper towel manufacturing apparatus 10 will be described. FIG. 2 is a block diagram of the paper towel manufacturing apparatus 10. As shown in the figure, a continuous web sheet 1T unwound from the web roll 1R is embossed (20P), and the web sheet 1T is embossed on its front and back surfaces. Then, the raw sheet 1T is cut into multiple rows (30P) in the traveling direction, and becomes a multiple row paper towel sheet 1S. Each of the paper towel sheets 1S in each row is folded in a double fold along the running direction (40).
P), and further folded in two along the running direction (50P). And the paper towel sheet 1S of each row
Is impregnated (60P) with a chemical solution. further,
The paper towel sheet 1S in each row is cut (70P) along each width direction to become a single paper towel 1, and the paper towel 1 is vertically folded in the middle in its longitudinal direction (80P). .

A paper towel manufacturing apparatus 1 having the above-described configuration.
By setting 0, the continuous raw sheet 1T can be made into a multi-row folded paper towel 1, and the paper towel 1 can be efficiently mass-produced. Then, the paper towels 1 are sent to the paper towel packaging apparatus 90 in a multi-row state.

Next, the paper towel wrapping apparatus 90 will be described. Again, as shown in FIG. 1, the towel wrapping device 90 includes a film cutting unit 100, a superposing unit 110, and a wrapping unit 120.
, A center seal part 130, a temporary bonding part 140, a film melting part 150, and a seal cutting part 160 are provided. The original sheet 2T unwound from the original film roll 2R of the packaging film passes through the joining section 3b and passes through the film cutting section 100,
Polymerization section 110, wrapping section 120, center seal section 130,
Temporary bonding part 140, film melting part 150 and seal cutting part
The paper towel 1 is wrapped by the packaging film 2 to become a paper towel product A. Raw roll of wrapping film 2
R is obtained by winding a packaging film sheet 2S made of a thermoplastic resin such as polyethylene, polyolefin, or vinyl chloride.

First, the film cutting section 100 will be described. FIG. 9A is a side view of the film cutting unit 100, and FIG. 9B is a plan view of the same. As shown in FIG.
Numeral 0 indicates that the raw sheet 2T unwound from the raw roll 2R of the packaging film is cut in multiple rows in the width direction of the raw sheet 2T to form a multi-row packaging film sheet 2S. The film cutting unit 100 is a multi-row film cutter.
Reference numeral 101 denotes an arrangement in which the cutting edge is oriented in a direction opposite to the traveling direction of the raw sheet 2T. Raw roll of wrapping film 2
The raw sheet 2T fed out from the R is the film cutting unit 10
0, this raw sheet 2T is
The film is cut into multiple rows in the width direction by 100 film cutters 101 to form a multi-row packaging film sheet 2S. In addition,
The number of cuts of the raw sheet 2T may be the same as the number of rows of the paper towel 1 in the paper towel manufacturing apparatus 10. In other words, if the paper towel manufacturing apparatus 10 manufactures paper towels in N rows, the film cutting unit 100 generates
T may be cut into N pieces to form N rows of packaging film sheets 2S. Therefore, in this case, (N-1) film cutters 101 may be arranged side by side in the width direction of the raw sheet 2T. Furthermore, the film cutting unit 100
May be not only the multi-row film cutter 101 but also a cutter roll or the like.

Next, the overlapping section 110 and the wrapping section 120
Will be described. FIG. 10 is a schematic perspective view of the overlapping section 110, the wrapping section 120, and the center seal section 130. As shown in FIG. 6 and FIG. 6, the overlapping portion 110 includes a vertical folding roll 81 in which a plurality of orbiting grooves 113 are formed on the roll peripheral surface, and a lower portion of the vertical folding roll 81 inclined obliquely forward and downward. It is composed of a belt conveyor 112 provided and a plurality of ropes 111 wound around a plurality of peripheral grooves 114 of a folding hold roll 123 described later.
0 will be explained.

As shown in FIGS. 5, 6 and 10, the wrapping unit 120 has a wrapping unit composed of a belt conveyor 121, a folding device 122 and a folding hold roll 123 arranged in multiple rows. The folding hold roll 123 of each wrapping unit is provided so as to be rotatable in a vertical plane similarly to the vertical folding roll 81. Each folding hold roll 123 is rotatably provided in a vertical plane at a position lower than a rear wheel (left side in the figure) of the belt conveyor 112. The roll width of the folding hold roll 123 is smaller than the width of the wrapping film sheet 2S in each row, and can press down the center of the wrapping film sheet 2S in each row in the running direction from above. For this reason, in the packaging film sheet 2S of each row, the paper towel 1 is set inside, and the packaging film sheet 2S of the row is put together with the paper towel 1 along the running direction, and the bottom is flat in a cross-sectional view. It can be typed in a U-shape.

The folding device 122 of each wrapping unit is disposed adjacent to the belt conveyor 112 and inclined forward and obliquely upward. Each folding device 122
In a known device, the packaging film sheet 2 formed into a U-shape with a flat bottom by the folding hold roll 123.
S is folded along this molding, and both edges in the width direction of the packaging film sheet 2S are brought into contact with each other. Each folding device 122 has a belt of a belt conveyor 121 passed therethrough, and each folding device 122 has a belt.
Reference numeral 122 is provided at a position substantially at the same height as the rear wheel (left side in the figure) of the overlapping portion 110. That is, this folding device 122
, A packaging film sheet 2S is passed from the entrance to the exit and runs. The number of rows of the wrapping unit is determined by the paper towel manufacturing apparatus 10.
The number may be the same as the number N of the rows of paper towels 1 in.

Next, the polymerization section 110 will be described. The vertical folding roll 81 is the first roll described in claim 3, and the vertical folding roll 81 has a circumferential groove 113 formed on the roll peripheral surface along the rotation direction. Further, the folding hold roll 123 is the second roll described in claim 3, and the folding hold roll 123 has a circumferential groove 114 formed on the roll peripheral surface along the rotation direction. According to the number N of rows of the packaging film sheet 2S, the vertical folding roll 8
1 has 2N circumferential grooves 113 formed therein. Similarly, the folding hold roll 123 has 2N circumferential grooves 114 formed therein. A plurality of orbital grooves of this folding hold roll 123
A cable 111 corresponding to each of the 114 and the plurality of circumferential grooves 113 of the vertical folding roll 81 is wound. Below the vertical folding roll 81, a belt conveyor 112 is provided obliquely downward and forward. A multi-row packaging film sheet 2S runs on the belt conveyor 112.

With this configuration, the multi-row paper towel 1 is
While being held in the groove 82 in the vertical folding roll 81 of the vertical folding section 80, the vertical folding roll 81 advances with the rotation of the vertical folding roll 81. Vertical folding roll 8 holding multiple rows of paper towels 1
When the groove 82 of one of the paper rolls advances to a position where it intersects with the cable 111 of the overlap portion 110, the multi-row paper towels 1 are respectively moved to the overlap portion 11
At the time of hitting the rope 111 of 0, it is forcibly superimposed on the packaging film sheet 2S. In other words, paper towels in each row 1
Moves forward with the rotation of the vertical folding roll 81, and the overlapping portion 11
Since the rope 111 of No. 0 always runs on the same locus, the paper towel 1 is pushed back by the rope 111 of the overlapping section 110, comes out of the groove 82 of the vertical folding roll 81, and is moved by the weight of the paper towel 1. , Falls on the belt conveyor 112 of the overlapping section 110. In addition, no matter which of the grooves 82 of the vertical folding roll 81, the paper towel 1 is always moving on the same locus, and since the cable 111 of the overlapping portion 110 runs on the same locus, In the paper towel 1 of each row, all the paper towels 1 following the paper towel 1 fall to the same position. For this reason, since the positioning of each paper towel 1 in the packaging film sheet 2S of each row is extremely accurate, there is an effect that product loss can be eliminated. Since two ropes 111 are made to correspond to one row of paper towels 1, it is preferable because the paper towels 1 can be prevented from tilting or shifting left and right.

Next, the center seal portion 130 will be described. The center seal portion 130 includes a plurality of units each having two sets of opposing seal rolls 131 arranged in series in the running direction of each row of the packaging film sheet 2S in accordance with the number N of rows of the packaging film sheet 2S. They are arranged in rows. The pair of seal rolls 131 of each unit are rotatably provided with their outer peripheral edges in contact with each other. All the seal rolls 131, 131 have irregularities formed on the outer peripheral edge thereof. This seal roll 13
Although not shown in FIG. 1, thermal energy is continuously supplied by the electric heater, so that the packaging film sheet 2S can be melted by the heat. Reference numeral 132 indicates a belt conveyor. The center seal 13
The number of sets of the seal roll 131 in 0 may be any number, but two or more sets are preferable.

The multi-row wrapping film sheet 2S in which the paper towel 1 is wrapped by the folding device 122 of the wrapping unit 120 is running while standing at both end edges while approaching or contacting. The center portions of the wrapping film sheets 2S in each row are placed on the belt conveyor 121 together with the paper towel 1, and both end edges of the wrapping film sheets 2S in each row are the first corresponding to the respective rows of the center seal portion 130. It is passed between a pair of seal rolls 131,131. Both end edges of the packaging film sheet 2S in each row are melted by the heat of the set of seal rolls 131, 131 while being sandwiched between the first set of seal rolls 131, 131, and are pressed. Then, both end edges of the packaging film sheet 2S in each row are melted by the heat of the second pair of seal rolls 131, 131 while being sandwiched between the second set of seal rolls 131, 131 and pressed. For this reason, both ends of the packaging film sheet 2S in all rows are located at the center seal portion 13.
0 means complete heat sealing.

The packaging film sheets 2S in each row after the center seal are kept at both ends, but when sent between the belt conveyor 132 and the belt conveyor 121, the both ends are turned over. Then, the sheet is superposed on the upper surface of the packaging film sheet 2S and sent to the temporary bonding section 140. The heat-sealed both end portions of the packaging film sheet 2S are portions to be the upper surface central portion 6 of the paper towel product A.

FIG. 11 is a schematic perspective view of the temporary bonding portion 140. As shown in the figure, the temporary bonding portion 140 is provided with a pair of upper and lower heat seal rolls 141, 141 rotatably provided. The multi-layered packaging film sheet 2S runs between the pair of heat seal rolls 141, 141. Each heat seal roll 141 has a trapezoidal heating section 143 extending in the axial direction of the roll and provided at regular intervals in the rotation direction on the roll peripheral surface. Since the heating part 143 has a built-in heat core 144 for generating heat,
Accordingly, the temperature of the heating unit 143 becomes high. By the way, the portion between the adjacent paper towels 1 and 1 on the packaging film sheet 2S in each row is a gap portion 7, and the gap portion 7 is formed along the width direction of the packaging film sheet 2S by a seal cutting section 160 described later. This is the part that is cut off.

With this configuration, the temporary bonding section 140 operates as described below. When the paper towel 1 wrapped by the wrapping film sheet 2S in each row is located between the pair of heat seal rolls 141, the heating portions 143 of the pair of heat seal rolls 141 come into contact with each other. Not. Therefore, no matter which row of the paper towel 1 is pressed, the paper is not pressed by the heating units 143, 143 or deteriorated by the heat of the heating units 143, 143. pass. Gap portion 7 in packaging film sheet 2S of each row
Is located between the pair of heat seal rolls 141, 141, the gap 7 of the packaging film sheet 2S is sandwiched by the heating portions 143 of the pair of heat seal rolls 141, 141. For this reason, the gaps 7 of the packaging film sheets 2S in each row are pressed and temporarily bonded by the heat of the heating units 143, 143 of the pair of heat sealing rolls 141, 141 while melting. Therefore,
This temporary bonding portion 140 is used for the packaging film sheets 2 in all rows.
Since the gap portion 7 between the adjacent paper towels 1 and 1 on S can be temporarily bonded, there is an effect that the positional deviation of the packaging film sheets 2S in all rows can be prevented.
The roll width of each heat seal roll 141 may be determined according to the width of the sent packaging film sheet 2S and the number N of rows.

FIG. 12 is a schematic perspective exploded view of the film melting section 150. As shown in FIG.
Are the packaging film sheets 2 of all the rows temporarily bonded.
A pair of upper and lower film dissolving mechanisms are provided at positions sandwiching S, and the film dissolving mechanisms dissolve the gap portions 7 of the packaging film sheets 2S in each row. Although the film dissolving mechanism is shown separately in the drawing for the sake of explanation, the pair of film dissolving mechanisms are provided close to the packaging film sheet 2S. A pair of front and rear rolls 151, 151 are rotatably opposed to each other in the upper and lower film melting mechanisms, and a mesh belt 153 is wound around the pair of front and rear rolls 151, 151, respectively. I have. When the roll 151 is rotated, the mesh belt 153 runs in the running direction of the packaging film sheet 2S in synchronization with the packaging film sheet 2S. Of course, the packaging film sheets 2S in each row are all running in synchronization.

The mesh belt 153 is formed by bonding a thermally conductive belt such as stainless steel to a heat insulating material such as silicon rubber or asbestos at regular intervals in the running direction of the mesh belt 153. The surface to which the heat insulating material is attached is a heat interrupting portion 154,
154 blocks the heat of a hot plate 155 described later. On the other hand, the surface of the mesh belt 153 except for the heat blocking portion 154 is a heat transmitting portion 156, and the heat transmitting portion 156 transmits heat of a hot plate 155 described later. The mesh belt 153 is made of not only stainless steel but also iron
Any material having heat resistance can be adopted without particular limitation. Further, as a material constituting the heat blocking portion 154 of the mesh belt 153, not only silicon rubber and asbestos but also any material having heat insulating properties such as carbon fiber or glass fiber can be used without any particular limitation. Note that the belt width of the mesh belt 153 may be determined according to the width of the sent packaging film sheet 2S and the number N of rows.

A hot plate 155 for generating heat is disposed between the pair of rolls 151, 151. The heat generated from the hot plate 155 causes the gap portions 7 of the packaging film sheets 2S in each row to move. Can dissolve. The hot plate 155 has a built-in heater made of metal such as brass, copper, iron, and aluminum. When energized, it generates heat due to the electrical resistance of the metal. The amount of heat can be adjusted by the amount.

All the rolls 15 of the film melting section 150
When 1 is rotated, the mesh belt 153 runs in the same direction and in synchronization with the packaging film sheets 2S in all rows. Therefore, the heat of the hot plate 155 passes through the heat transmitting portion 156 of the mesh belt 153, and the heat always melts only the gap portions 7 of the packaging film sheets 2S in each row. On the other hand, since the heat of the hot plate 155 is cut off by the heat blocking portion 154 of the mesh belt 153, all the paper towels 1 folded on the packaging film sheet 2S in the row are not heated and do not deteriorate. That is, the film dissolving unit 150 can dissolve only the gap 7 between the adjacent paper towels 1 on the packaging film sheet 2S in each row in the packaging film sheets 2S in all rows without deteriorating the paper towel 1. This has the effect.

FIG. 13 is a schematic perspective view of the seal cutting section 160. As shown in the figure, the seal cutting section 160 is provided with a pair of upper and lower cooling seal cutting rolls 161, 161 rotatably provided at a position sandwiching the packaging film sheet 2S between the rolls. Numeral 161 is used to rotate in synchronization with the traveling speed of the packaging film sheet 2S in each row. Of course, the packaging film sheets 2S in each row are all running in synchronization.

Each cooling seal cutting roll 161 is provided with a trapezoidal cooling section 163 extending in the axial direction on the roll peripheral surface. Unlike the heating section 143 of the heat sealing roll 141 of the temporary bonding section 140, the cooling section 163 of the cooling seal cutting roll 161 does not generate heat but cools the gap 7 of the packaging film sheet 2S in each row. It is for doing. Each of the cooling seal cutting rolls 161 has a cylindrical shape, and a roll shaft portion is formed in a hollow shape. Hose 164 is connected to both ends of the hollow portion, and cooling water flows through the hose 164. . The cooling water can always cool the cooling unit 163. 165 is a rotary connector for preventing the hose 164 from being twisted. The number of cooling units 163 in the cooling seal cutting roll 161 may be any number. When a plurality of cooling units 163 are attached to the cooling seal cutting roll 161,
A plurality of cooling units 163 may be mounted at regular intervals in the rotation direction. Of course, a cutter 166 may be attached to each cooling unit 163.

The cooling section 163 is provided with a cutter 166 extending in the axial direction of the cooling seal cutting roll 161. The cooling method of the cooling seal cutting roll 161 is as follows.
As described above, not only water cooling but also cooling with electricity or a pump may be used, and various methods can be adopted. However, water cooling is preferable because it is inexpensive. Furthermore, the roll width of the cooling seal cutting roll 161 may be determined according to the width of the sent packaging film sheet 2S and the number N of rows.

With this configuration, the seal cutting section 160 operates as follows. As shown in FIG. 13, when the paper towel 1 wrapped in each row of the wrapping film sheet 2S is located between the pair of cooling seal cutting rolls 161, 161 of the pair of cooling seal cutting rolls 161, The cooling unit 163 does not contact. Therefore, the cooling unit 16
It is not pressed by 3 and passes between the cooling seal cutting rolls 161, 161. When the gap portion 7 in each row of the packaging film sheet 2S is located between the pair of cooling seal cutting rolls 161 and 161, the cooling section 163 of the pair of cooling seal cutting rolls 161 is provided.
, 163 sandwich the gap portion 7 of the packaging film sheet 2S in each row. Therefore, the cooling portions 163, 163 of the respective cooling seal cutting rolls 161 cool and solidify the melted gap portions 7 of the packaging film sheets 2S in the respective rows, and press and bond them while cooling. Therefore, the seal cutting section 160 cools and solidifies the melted gap portion 7 between the adjacent paper towels 1 wrapped in the packaging film sheets 2S of all rows, so that the packaging film sheets 2S of all rows are solidified. In addition to preventing the paper towel from being opened, the paper towel 1 can be completely wrapped and sealed with the wrapping film sheets 2S in each row.

Further, the pair of cooling seal cutting rolls
When the cooling units 163 are brought into contact with each other by rotating 161 and 161, the cutters 166 of the cooling unit 163 overlap each other and sandwich the gap 7 of the packaging film sheet 2S.
The gap portion 7 of the packaging film sheet 2S is cut along the width direction of the packaging film sheet 2S.

Next, the operation of the paper towel wrapping apparatus 90 will be described. FIG. 8 is a flowchart of a method of packaging the paper towel 1. FIG. 14 is a diagram illustrating the operation of the paper towel wrapping apparatus 90 of the present embodiment. As shown in FIGS. 8 to 14, in the film cutting step 100 </ b> P, a continuous raw sheet 2 </ b> T fed from the packaging film roll 2 </ b> R by the film cutting section 100 is cut in multiple rows in the width direction of the raw sheet 2 </ b> T. , Forming a multi-row packaging film sheet 2S. Next, in the polymerization step 110P,
The paper towel 1 is superimposed on each of the packaging film sheets 2S running in multiple rows. Next, in the wrapping step 120P, the packaging film sheet 2S traveling in multiple rows by the wrapping unit 120 has the bottom along the running direction of the packaging film sheet 2S together with the paper towel 1 with the paper towel 1 inside. It is folded into a flat U-shape, and its both edges are in contact while standing.

In the center sealing step 130P, the package film sheet 2S is sandwiched between the seal rolls 131 of the center seal portion 130 and melted by heat, so that both edges of the packaging film sheet 2S are heat sealed. Then, both edge portions of the packaging film sheet 2S are turned over by the belt conveyor 132.

In the temporary bonding step 140P, the gap portions 7 of the packaging film sheet 2S running in multiple rows are sandwiched between the heating portions 143 of the pair of heat sealing rolls 141, and the heat of the heating portions 143 causes the gap portions 7 to be formed. While only the gap portions 7 in the row of packaging film sheets 2S are melted, they are pressed and temporarily bonded. Regardless of the row of packaging film sheets 2S, the paper towel 1 wrapped in the packaging film sheets 2S of that row is not pressed against the heating unit 143, so that the paper towel 1 does not deteriorate. Therefore, there is an effect that the positional deviation of each paper towel 1 in the packaging film sheets 2S in all rows can be prevented.

Then, in the film melting step 150P, the heat of the hot plate 155 of the film melting section 150 passes through the heat transmitting section 156 of the mesh belt 153, so that the gap 7 in the packaging film sheet 2S running in multiple rows.
Is melted by the heat of the hot plate 155. On the other hand, since the heat of the hot plate 155 of the film melting section 150 is blocked by the heat blocking section 154 of the mesh belt 153, the paper wrapped in the wrapping film sheet 2S of any row, regardless of the row of the wrapping film sheet 2S. Towel 1
Is not degraded by this heat. That is, dissolving only the gap 7 between the adjacent paper towels 1 wrapped in the packaging film sheets 2S of all rows without deteriorating the paper towel 1 in any row of the packaging film sheets 2S. This has the effect that it can be performed.

Finally, in the seal cutting step 160P,
The cooling portions 163, 16 of the pair of cooling seal cutting rolls 161 are separated from the gap portions 7 of the packaging film sheet 2S running in multiple rows.
3, the melt gap portions 7 in the respective rows of the packaging film sheets 2S are cooled and solidified, and pressed and adhered by cooling. Regardless of the row of the packaging film sheet 2S, the paper towel 1 wrapped in the packaging film sheet 2S is supplied to the cooling section of the cooling seal cutting roll 161.
163, the paper towel 1 does not deteriorate. In other words, no matter which row of the packaging film sheet 2S, the melted gap portion 7 between the adjacent paper towels 1 wrapped in the row of the packaging film sheet 2S can be cooled and solidified. It is possible to prevent the row of packaging film sheets 2S from opening and to completely wrap and seal the paper towel 1 with each row of packaging film sheets 2S. Moreover, the gap portions 7 in all the rows of the packaging film sheets 2S are cut along the width direction of the packaging film sheets 2S by the cutters 166, 166 of the cooling unit 163, and each paper towel 1 is attached to the corresponding packaging film 2S. The paper towel product A is wrapped.

As described above, the multi-row paper towel 1 can be efficiently packed by the paper towel packaging apparatus 90. Therefore, there is an effect that the paper towel 1 can be efficiently manufactured in large quantities by packaging the paper towel 1.

[0049] or a paper towel 1 can be reliably sealed with wrapping film 2, the packaging film can prevent the displacement of the paper towel 1 in 2, can be a paper towel products A efficiently mass-produced.

[0050]

According to the paper towel packaging apparatus 請 Motomeko 1 according to the present invention can be manufactured of paper towel products efficiently mass packaged paper towel in the packaging film. In addition , even when the packaging film sheet is run at high speed, the paper towel is superimposed on the packaging film sheet at an accurate position, and product loss can be eliminated. According to the paper towel wrapping device of the second aspect , the gap between adjacent paper towels on the packaging film sheet can be temporarily bonded, so that the positional deviation of the paper towel on the packaging film sheet can be prevented, and product loss can be prevented. Can be eliminated. According to the paper towel packaging device of the third aspect , the gap between adjacent paper towels on the packaging film sheet can be melted without deteriorating the paper towel. According to the paper towel packaging apparatus of the fourth aspect , the melted gap between adjacent paper towels on the packaging film sheet is cooled and solidified, so that the packaging film is prevented from opening and the paper towel is packed. It can be completely wrapped and enclosed in film to make a paper towel product.

[Brief description of the drawings]

1 is a schematic substantially side view of the paper towel products manufacturing facility.

FIG. 2 is a flowchart of a method of manufacturing the paper towel 1.

FIG. 3 shows a primary folding section 40 and a secondary folding section 50.
It is a schematic perspective view of.

FIG. 4 is a cross-sectional view of a chemical liquid impregnating section 60.

5 is a side view of a part of the cutting unit 70, the vertical folding unit 80, and the paper towel wrapping device 90. FIG.

FIG. 6 is an enlarged side view of a cutting section 70 and a vertical folding section 80.

FIG. 7 is a vertical sectional view of a feed roll 73 and a vertical folding roll 81.

FIG. 8 is a flowchart of a method of packaging the paper towel 1.

FIG. 9 is an explanatory view of the film cutting unit 100, and FIG.
Is a side view, and (B) is a plan view.

FIG. 10 is a schematic perspective view of a superposition unit 110, a wrapping unit 120, and a center seal unit 130.

11 is a schematic perspective view of a temporary bonding section 140. FIG.

FIG. 12 is a schematic perspective view of a film melting section 150.

FIG. 13 is a schematic perspective view of a seal cutting section 160.

FIG. 14 is an explanatory diagram of the operation of the paper towel wrapping apparatus 90.

FIG. 15 is a single view of the paper towel product A, and FIG.
Is a perspective view, and (B) is a cross-sectional view taken along line BB of (A).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper towel 2 Packaging film 7 Gap part 10 Paper towel manufacturing apparatus 20 Emboss press part 30 Paper towel sheet cutting part 40 Primary folding part 50 Secondary folding part 60 Impregnation part 70 Cut part 80 Vertical folding part 90 Paper towel packaging apparatus 100 Film Cutting unit 110 Overlapping unit 120 Wrapping unit 130 Center seal unit 140 Temporary bonding unit 141 Heat seal roll 143 Heating unit 144 Heat core 150 Film melting unit 153 Mesh belt 154 Heat blocking unit 155 Hot plate 156 Heat transmitting unit 160 Seal cutting unit 161 Cooling Seal cutting roll 163 Cooling unit 166 Cutter A Paper towel

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-53-56584 (JP, A) JP-A-50-6477 (JP, A) JP-A-49-36461 (JP, A) JP-A-47-463 38354 (JP, A) JP-A-57-153624 (JP, A) JP-A-60-126131 (JP, A) JP-A-50-19670 (JP, U) JP-B-53-22916 (JP, B2) JP-B-54-38549 (JP, B2) JP-B-52-16017 (JP, B2) JP-B-42-12579 (JP, B1) JP-B-44-3501 (JP, B1) JP-B-43-11509 (JP, B1) Jikken 42-15679 (JP, Y1) Jikken 47-22915 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47K 7/00 102

Claims (4)

(57) [Claims] 1. A polymerization section for superposing a paper towel on a packaging film sheet while running a continuous packaging film sheet unreeled from a raw roll, and the packaging film with the paper towel inside. A wrapping portion that folds the sheet along its running direction, overlaps the opposing edges in the width direction of the packaging film sheet and wraps the paper towel, and overlaps both edges in the width direction of the packaging film sheet. A center seal portion for heat-sealing, a temporary bonding portion for temporarily bonding a gap portion between the adjacent paper towels wrapped in the packaging film sheet in the packaging film sheet, and the gap portion in the packaging film sheet. A film dissolving section for dissolving the heat by heat; and The gap portion dissolved solidified by cooling, Ri Do from the seal cutting unit to cut the said gap portion, wherein the polymerization unit, on the roll circumference, at equal intervals in the rotational direction, the
A plurality of grooves formed along the axial direction, and a roll
A circuit formed along the direction of rotation on the peripheral surface
First roll rotatably provided in a vertical plane having a groove
And is formed along the rotation direction on the roll peripheral surface.
Second rotatably provided in a vertical plane having a circumferential groove
A roll, a winding groove of the second roll, and a winding groove of the first roll.
The wrapped film and the wrapping film sheet are provided below the stranded cable.
And a belt conveyor that runs
Paper towel packaging equipment. (2)A series of packaging unwound from a stock roll
While running the film sheet, The packaging film sheet
Polymerization section where paper towel is superimposed on With the paper towel inside, the packaging film sheet
Is folded along its running direction,
Overlapping edges facing each other in the width direction of the sheet
A wrapping part that wraps the paper towel Superimposed in the width direction of the packaging film sheet
A center seal part that heat seals the both edges, In the packaging film sheet, the packaging film sheet
Gaps between adjacent paper towels wrapped in paper
A temporary bonding portion for temporarily bonding the components, The gap in the packaging film sheet is heated by heat.
Film dissolving part to dissolve The gap portion dissolved in the packaging film sheet
Cooling and solidifying, and a seal cutting portion for cutting the gap portion.
Consisting of  The temporary bonding section fixes the heating section extending in the axial direction of the roll.
Rotatable ones provided at equal intervals in the circumferential direction on the circumferential surface
A pair of heat seal rolls.
The packaging film sheet travels between the
The gap portion in the packaging film sheet is temporarily
Characterized by bondingPaperTowel packaging equipment. (3)A series of packaging unwound from a stock roll
While running the film sheet,
Polymerization section where paper towel is superimposed on With the paper towel inside, the packaging film sheet
Is folded along its running direction,
Overlapping edges facing each other in the width direction of the sheet
A wrapping part that wraps the paper towel Superimposed in the width direction of the packaging film sheet
A center seal part that heat seals the both edges, In the packaging film sheet, the packaging film sheet
Gaps between adjacent paper towels wrapped in paper
A temporary bonding portion for temporarily bonding the components, The gap in the packaging film sheet is heated by heat.
Film dissolving part to dissolve The gap portion dissolved in the packaging film sheet
Cooling and solidifying, and a seal cutting portion for cutting the gap portion.
Consisting of  A hot plate in which the film melting section generates heat
Running between the hot plate and the packaging film sheet.
A mesh belt running on the mesh belt, and the mesh belt is alternately heated in its running direction.
A transmission section and a heat blocking section are provided, and the mesh belt is synchronized with the packaging film sheet.
Characterized by travelingPaperTowel packaging equipment. (4)A series of packaging unwound from a stock roll
While running the film sheet,
Polymerization section where paper towel is superimposed on With the paper towel inside, the packaging film sheet
Is folded along its running direction,
Overlapping edges facing each other in the width direction of the sheet
A wrapping part that wraps the paper towel Superimposed in the width direction of the packaging film sheet
A center seal part that heat seals the both edges, In the packaging film sheet, the packaging film sheet
Gaps between adjacent paper towels wrapped in paper
A temporary bonding portion for temporarily bonding the components, The gap in the packaging film sheet is heated by heat.
Film dissolving part to dissolve The gap portion dissolved in the packaging film sheet
Cooling and solidifying, and a seal cutting portion for cutting the gap portion.
Consisting of  The seal cutting portion is circumferentially equal on the roll peripheral surface.
Cooling section and cutter extending in the axial direction of the roll at intervals
A pair of rotatable cooling seal cutting rolls with
Between the pair of cooling seal cutting rolls.
The cooling sheet travels, and the packing
Cooling and solidifying the gap in the sheet
Characterized byPaperTowel packaging equipment.