JPH08310705A - Work transfer device and carrier - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a work delivery device in which a sheet-like work is turned by 90 degrees with respect to its conveying surface to change its direction. CONSTITUTION: forming a sheet-like and loading unit I ₀₀ and the unloading unit O ₀₀ of the workpiece F, these loading unit I ₀₀ and the unloading unit O ₀₀ 2 one connecting conveyor section J _I connecting the, an endless conveyor 115 having a J _O , A carriage dolly 127 mounted on the endless conveyor 115, a table base rotatably mounted on the carriage dolly 127, and a work table on which the work F is delivered by being integrally mounted on the table base. 145 and this work table 14
5, a suction means for suction-holding the work F, and a carry-in section I ₀₀
One means for rotating the table base 90 degrees about the axis perpendicular to the conveyance surface of the work F with respect to the conveyance carriage 127 at one of the connection conveyance sections J _I from the unloading section O ₀₀ to the unloading section O ₀₀ .

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work transfer device in which a sheet-shaped work is turned by 90 degrees with respect to its conveying surface to change its direction. It is suitable.

[0002]

2. Description of the Related Art A removable diaper having an opening corresponding to the waist and a pair of openings corresponding to the thighs of both legs is mounted by closing the left and right side flaps. Compared with a deployable diaper, an adult wearer can easily put on and take off the wearer, and can easily and quickly wear the wearer in a standing posture. Moreover, since the wearable diaper can be worn by an adult wearer as if he / she is wearing underwear rather than as a diaper, it seems that the diaper can be accepted with less resistance than the deployable diaper.

For these reasons, the demand for the removable diaper is increasing in place of the deployable diaper for adults who need a diaper and for infants at the time of weaning. Further, in order to improve the fit of the opening and to improve the overall feeling of wearing, the stretchable material tends to be frequently used.

FIG. 9 shows such a wearable diaper.
And the thing as shown in FIG. 10 is proposed. That is, the wearable diaper 11 includes a waist opening 12 corresponding to the waist, a pair of leg openings 13 corresponding to the thighs of both legs, and the openings 1
The outer packaging member 14 forming the second and thirteenth portions, the waist tape 15 joined so as to sandwich the outer packaging member 14 along the waist circumference opening 12, and the waist circumference opening 12 squeezed between the waist tape 15 Thereby, the waist elastic member 17 for forming the waist gathers 16 and the leg gathers 18 by squeezing the leg openings 13 are formed.
A leg elastic member 19 for forming a leg and an absorbent main body 20 extending from the crotch portion between the leg openings 13 to the ventral side and the hip side, respectively.

A pair of left and right closing portions 21 communicating with the waist opening 12 and the leg opening 13 are formed on the exterior member 14 so as to be peelable along the left and right flanks. By peeling 21 away, it can be developed as shown in FIG. That is, FIG.
From the unfolded state shown in FIG. 0, the front and rear closing portions 21 of the exterior member 14 are overlapped with each other, and these abutting portions are joined to each other, so that the removable diaper 11 shown in FIG. 9 can be obtained.

As shown in FIGS. 9 and 10 and FIG. 11 which schematically shows the cross-sectional structure of the retractable diaper 11, the outer covering member 14 is an outermost layer sheet 2 which can extend in the width direction.
2 and the outermost sheet 2 along the absorbent body 20.
The center sheet 23 arranged at the center of the second sheet and the leg elastic members 19 for narrowing the leg openings 13 are sandwiched between the center sheet 23 and the inner side in the width direction so as to overlap the side end portions of the center sheet 23 and to expand and contract in the width direction. Left and right pair of side seats 24
And are joined together. This side seat 2
4 is a stretchable sheet 2 having moisture permeability that can stretch in the width direction.
5 and a stretch sheet 26 that is integrally bonded to the stretchable sheet 25 and that can stretch in the width direction are formed of a composite material that is adhered in a laminated state. Further, a pair of left and right joining tapes 27 that partially overlap the width direction outer side of the side sheet 24 are attached to the above-described closing portion 21, and the closing portion 21 is peeled off at the portions of these joining tapes 27. I'm supposed to get it.

On the other hand, the absorptive main body 20 is composed of the liquid absorber 2
8 and the liquid impermeable back sheet 29 provided between the liquid absorber 28 and the center sheet 23 of the exterior member 14.
And a liquid-permeable topsheet 30 that sandwiches the liquid absorber 28 with the backsheet 29, and left and right ends of the backsheet 29 and the topsheet 30 that are joined at their widthwise one ends so as to wrap around the widthwise both ends. The pair of side top sheets 31 and a stretchable elastic member 33 for forming the three-dimensional gathers 32 that are respectively held along the other widthwise end portions of the side top sheets 31 are provided.

The back sheet 29 of the absorbent main body 20 and the center sheet 23 joined to the central portion in the width direction of the outermost layer sheet 22 of the exterior member 14 are integrally joined to each other by an adhesive portion 34. ing.

The present inventors have proposed the method shown in FIGS. 12 to 15 as a method for manufacturing a snap-on type diaper as shown in FIGS. 9 to 11.
It has a good overall fit, and enables a flexible diaper that can be manufactured at low cost by mass production.

A brief description of this manufacturing method is as follows.
A strip-shaped continuous body 14C of the exterior member 14 and a strip-shaped continuous body 20C of the absorbent body 20 which are formed in parallel with each other.
And are overlapped with each other via the adhesive portion 34 to obtain a continuous laminated body F _C (see FIG. 12).

Then, the continuous laminated body F downstream of the above
_At a predetermined position on the transport path of _C, the continuous laminated body F _C
Of the outermost layer sheet 22 located in the intermediate portion of the liquid absorbers 28 adjacent to each other in the conveying direction of the sheet, the elastic member 19C around the continuous leg, the continuous body of the center sheet 23, the continuous tape 27C, the continuous side sheet 24C, backsheet 2
9 continuous body, top sheet continuous body 30C, side top sheet continuous body 31C are cut at predetermined intervals along a cutting line C ₁ shown in FIG. 12 to form a rectangular laminated body F having one liquid absorber 28. obtain. Then, while maintaining the state before cutting so that the laminated body F is not deformed due to the contraction of the elastic members 19 around the leg and the elastic member 33 due to the free opening, the conveying surface thereof (the surface parallel to the paper surface of FIG. 12). The laminated body F is turned 90 degrees about an axis perpendicular to the axis. Further, the laminated body F is pulled in the width direction (left and right direction in FIG. 12) of the model diaper on which the laminated body F is detached, and the laminated body F is expanded by a predetermined length by elastic deformation of the leg elastic members 19 and the side sheets 24 (FIG. 12).
After that, switch to the lateral flow method.

In this way, the rectangular laminated body F having one liquid absorber 28 is swung 90 degrees and widened, while the left and right sides of the continuous laminated body F _C are conveyed in parallel along the conveying direction. Between a pair of waist tape continuum 15C,
The left and right edges of the connecting sheet 35 are joined at an interval equal to the cut size of the laminated body F to obtain a strip-shaped body 36 having a ladder-like structure (see FIG. 13).

Next, between the adjacent connecting sheets 35 of the belt-shaped body 36, the laminated body F swiveled 90 degrees and widened is overlapped, and both front and rear ends of the laminated body F along the conveying direction, that is, peeled off. Both widthwise ends of the diaper 11 are joined to the connecting sheet 35 (see FIG. 13). Then, downstream of this, a pair of left and right continuous waist elastic members 17C are joined to the waist tape continuum 15C in an extended state. Further, the waist tape continuum 15 is wrapped around the elastic member 17C around these continuous waists.
The outer edges in the width direction of C are respectively folded back inward, and the both edges in the width direction of the laminated body F are overlapped and joined to each other (see FIG. 14).

After that, at a predetermined position on the transport path of the strip-shaped body 36 further downstream, the strip-shaped body 36 of the strip-shaped body 36 is formed along the curved portion of the leg elastic member 19 of the laminated body F adjacent to each other via the connecting sheet 35. The central portion is cut out together with the laminated body F in a substantially circular shape at a predetermined interval to form a portion to be the leg opening portion 13 (see FIG. 15). A pair of waist tape continuums 15C positioned on both sides of the strip 36 in the width direction.
This strip-shaped body 36 is folded in two together with the laminated body F so that they overlap with each other, and the exposed portion of the joining tape 27, that is, the front and rear end portions along the transport direction of the folded-up laminated body F to be the closing portion 21. After joining in the width direction, the joining portions of the laminated bodies F adjacent to each other, that is, the portions of the connecting sheet 35 located between the portions to be the closing portions 21 are cut along the cutting line C ₂ in FIG. The diaper 11 and the discarding portion 37 having the connecting sheet 35 are obtained by cutting the diaper 11 (see FIG. 15).

In the above-mentioned break-away type diaper, a member that expands and contracts in the width direction is used as the side sheet 24. However, when a material that does not expand and contract is used, the work of expanding the laminated body F shown in FIG. 12 is omitted. be able to.

[0016]

In the method of manufacturing the snap-on type diaper shown in FIGS. 12 and 13, the leg elastic members 19 for forming the leg gathers 18 are conveyed along the longitudinal direction. Continuing along the substantially leg opening 13 of the diaper while curving the outermost layer sheet 22 at a predetermined interval along the conveying direction with respect to the continuous body.
After the outermost layer sheet 22 is joined to both sides in the width direction by a so-called longitudinal flow method, a waist-surrounding elastic member 17 for forming the waist gathers 16 is provided on the conveyance surface while holding the laminated body F in the state before cutting. On the other hand, it is necessary to turn 90 degrees around a vertical axis, switch to the lateral flow system, and join the belt-shaped body 36 at predetermined intervals. That is, in order to hold the stacked body F in the state before cutting, the transport table having substantially the same contour shape as the stacked body F is shown in advance on the upper side of FIG.
_C back surface, i.e. the outermost layer the continuous laminate being in contact with the continuum forming the strip-shaped sheet 22 F _C and synchronized movement, further continuous laminate F _C from the surface of the conveying table
The laminated body F after cutting is suction-held on the carrier table by vacuuming the back surface of the carrier, the carrier table is rotated 90 degrees in this state, and the carrier table is further separated from the central portion to the front and back. It is conceivable to increase the distance.

As described above, in order to manufacture the moldable diaper according to the above-mentioned procedure, the work transfer device in which the work in the form of a sheet is turned by 90 degrees with respect to the conveying surface to change its direction, Further, a work delivery device capable of delivering the work in a widened state is required, but conventionally there has not been a work delivery device that meets such a requirement.

[0018]

It is an object of the present invention to incorporate a sheet-shaped work into a work transfer device for turning the work by 90 degrees with respect to the conveying surface thereof, and particularly to a work line for manufacturing a diaper to be broken. To provide a simple work transfer device.

It is another object of the present invention to rotate a sheet-like work 90 degrees with respect to its conveying surface to change its direction, and further to deliver the work in a widened state, particularly a peeling type. An object of the present invention is to provide a suitable work transfer device by incorporating it into a diaper manufacturing line.

Further, another object of the present invention is to provide a carrier truck which is capable of surely carrying the guide rail without play, and a carrier truck suitable for being incorporated in a work transfer device for a wearable diaper. To do.

[0021]

A first embodiment according to the present invention is an endless conveyor having a sheet carrying-in section and a carrying-out section, and two connecting and carrying sections connecting the carrying-in section and the carrying-out section. , A carriage attached to the endless conveyor, a table base rotatably attached to the carriage, a work table integrally attached to the table base for transferring the work, Adsorption means for adsorbing and holding the work on the work table, and an axis perpendicular to the transfer surface of the work with respect to the transfer carriage by the table base at one of the connection transfer parts from the loading part to the unloading part. It is a work delivery device characterized in that it is provided with a means for turning 90 degrees around.

A second embodiment of the present invention is an endless conveyor having a sheet carrying-in and carrying-out section for works and two connecting and carrying sections connecting the carrying-in section and the carrying-out section, and the endless conveyor. A carriage mounted on the carriage, a table base rotatably mounted on the carriage, a carriage mounted on the table base so as to be movable in opposite directions along the width direction of the workpiece, and the workpiece. Of a pair of work tables, suction means for sucking and holding the work on the pair of work tables, and one of the connection transfer parts from the carry-in part to the carry-out part to connect the table base to the table. A means for turning 90 degrees around an axis perpendicular to the transfer surface of the work with respect to the transfer carriage, and one of the one from the carry-in section to the carry-out section. A means for moving the pair of work tables so that the pair of work tables are separated from each other in the continuous conveyance section and extending the work in the width direction thereof, and the other connection conveyance from the carry-out section to the carry-in section. Means for rotating the table base with respect to the transport carriage by 90 degrees about an axis perpendicular to the transport surface of the work, and the pair of the pair at the other connection transport portion from the carry-out portion to the carry-in portion. And a means for moving the pair of work tables so that the work tables come closer to each other and returning the pair of work tables to the original width.

Here, the turning operation of the table base with respect to the transport carriage and the movement of the pair of work tables along the width direction of the work with respect to the table base may be simultaneously performed. In this case, The means for moving the pair of work tables along the width direction of the work includes a pair of widening guide grooves formed in the transport carriage with a rotation axis of the table base with respect to the transport carriage as a rotational symmetry axis, and the pair of It is effective to have a pair of engaging pins that are respectively provided on the work table so as to project and engage with the widening guide grooves. Further, it is preferable that at least two portions having a linear transport locus are formed on the endless conveyor, and that the work carry-in portion and the work carry-out portion are respectively set to the portions having the linear transport trajectory. As a means for turning the table base with respect to the transport carriage,
It is formed along the transport direction of the transport carriage by the endless conveyor, and is on the one side and the other side in the width direction of the endless conveyor at the two connection transport sections between the loading section and the unloading section, respectively. It is possible to employ a guide groove having a shift, and an engaging pin protruding from the table base and engaging with the guide groove.

Further provided is a guide rail which is provided along the endless conveyor and which has a pair of guide surfaces parallel to each other and which has a portion curved around an axis parallel to the guide surfaces. As the carrier carriage that moves along the guide rail in a direction orthogonal to the axis, a carriage body connected to the endless conveyor, and a carriage body parallel to the guide surface of the guide rail with respect to the carriage body. And at least two front and rear swing bases that are mounted so as to be respectively rotatable around rotation axis lines that are perpendicular to the traveling direction of the transport carriage, and the guides are provided around these rotation bases in pairs about axes parallel to the rotation axis line. Adopting a guide roller that is rotatably mounted so as to sandwich the rail and that has guide rollers that make rolling contact with the pair of guide surfaces. It can be.

On the other hand, according to the third aspect of the present invention, the axis line is provided along a guide rail which has a pair of guide surfaces parallel to each other and which has a curved portion about an axis parallel to the guide surfaces. A carriage that can move in a direction orthogonal to the carriage body, the carriage being a carriage main body, and traveling of the carriage along the guide rail parallel to the guide surface of the guide rail with respect to the carriage main body. At least two front and rear swing bases mounted so as to be respectively rotatable around a rotation axis perpendicular to the direction, and each pair of the rotation bases is rotatable so as to sandwich the guide rail around an axis parallel to the rotation axis. And a guide roller attached to the pair of guide surfaces and rollingly contacting the pair of guide surfaces, respectively.

[0026]

According to the first aspect of the present invention, the sheet-like work is adsorbed and held by the adsorbing means at the carry-in portion to the work table of the carrier truck mounted on the endless conveyor, and the endless conveyor is turned. Along with this, it is sent out from this carry-in section to the carry-out section via the connection carrying section. Then, after the table base together with the work table turns 90 degrees around an axis perpendicular to the work transfer surface with respect to the transfer carriage at the connection transfer unit in the middle of this, it reaches the carry-out unit and the suction by the suction means is released. The sheet-shaped work whose direction is changed is removed from the work table. Further, when the carrier truck returns from the carry-out section to the carry-out section via the other connected carrier section, the table base together with the work table in the other connected carrier section has an axis perpendicular to the carrier plane with respect to the carrier carriage. Turn around 90 degrees and return to the original state.

According to the second aspect of the present invention, the sheet-shaped work is adsorbed and held by the adsorbing means at the carry-in portion to the pair of work tables of the carriage mounted on the endless conveyor, and the work of the endless conveyor is conveyed. Along with the turning, it is sent out from this carry-in section to the carry-out section via the connection carrying section. Then, in the connection transfer unit in the middle of this, the table base turns 90 degrees with respect to the transfer carriage around an axis perpendicular to the transfer surface of the work, and the work base is moved relative to the table base so that the pair of work tables separate from each other. After moving in the width direction to widen the work, the suction means releases the suction by the unloading section, and the work in the widened state whose direction is changed by 90 degrees is removed from the work table. Furthermore, when this transport carriage returns from the unloading unit to the unloading unit via the other connecting transport unit,
At the other connection transfer section, the table base turns 90 degrees around an axis perpendicular to the transfer surface of the work with respect to the transfer carriage,
Further, the pair of work tables moves in the width direction of the work with respect to the table base so as to approach each other, and returns to the original state.

When the means for moving the pair of work tables along the width direction of the work has the widening guide groove and the engaging pin, when the table base turns 90 degrees with respect to the carriage, it is formed on the carriage. The relative position of the engaging pin of the work table held by the table base changes with respect to the pair of widening guide grooves, and the work tables move relative to the table base so as to approach or separate from each other.

Further, when a means having a guide groove and an engaging pin is adopted as means for rotating the table base with respect to the carrying carriage, the engaging pin protruding from the table base is connected to the endless conveyor at the connecting and carrying section. The table base moves in one direction around the axis perpendicular to the work transfer surface with respect to the transfer carriage so as to follow along the guide groove that is displaced in the width direction of the table.
Similarly, the table base turns 90 degrees in the opposite direction in the other connecting and conveying section.

Further, a guide rail along the endless conveyor is further provided, and as the carrier truck that moves along the guide rail, a carriage main body, at least two front and rear swing bases, and a pair of guides attached to each of these swing bases. When a roller having a roller is adopted, a pair of guide rollers sandwiching the guide rail roll along the guide surface as the transporting carriage connected to the endless conveyor moves along the guide rail. In curved guide rails, the distance between the pair of guide rollers attached to each swivel base does not change, so that the pair of guide rollers face each other in the direction perpendicular to the guide surface so that they rotate with respect to the carriage body. The base turns.

According to the third aspect of the present invention, as the carriage moves along the guide rails, the pair of guide rollers sandwiching the guide rails roll along the guide surfaces. In curved guide rails, the distance between the pair of guide rollers attached to each swivel base does not change, so that the pair of guide rollers face each other in the direction perpendicular to the guide surface so that they rotate with respect to the carriage body. The base turns.

[0032]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the work transfer device according to the present invention, which can realize the manufacturing method for the removable diaper shown in FIGS. 12 and 13, will be described in detail with reference to FIGS.

In the present embodiment, as shown in FIG. 1 which shows the schematic structure of the present embodiment, the carry-in section I _{00 of the} work transfer device 100 is used.
The individual stacked bodies F that are continuous are carried in from the carry-out section O ₀₁ of the carry-in conveyor 101, and each stacked body F is swung 90 degrees and widened and held in this state at the connecting and conveying section J _I on the way. Laminate F is carried out at the unloading section O _00. Ladder-like strip 3
6 (see FIG. 13) and the work transfer device 10
It is designed to be carried out from 0.

The carry-in section I ₀₁ of the carry-in conveyor 101 is in contact with a direction changing roller 102 for guiding the continuous laminated body F _C carried in from the upstream side to the carry-in section I ₀₁ of the carry-in conveyor 101. 1, a cutter drum 105 having a not-shown cutter blade protruding from the outer periphery thereof is arranged above the conveyor drive pulley 104 that drives the conveyor belt 103 of the conveyor 101 to rotate counterclockwise in FIG. And the continuous drive body F _C
Is cut into individual laminated bodies F along a cutting line C ₁ shown in FIG. In order to hold the continuous laminated body F _C carried in from the direction changing roller 102, a suction device (not shown) for sucking and holding the continuous laminated body F _C and the individual laminated bodies F after cutting through the conveyor belt 103 is carried in. Although it is built in from the carry-in section I ₀₁ to the carry-out section O ₀₁ of the conveyor 101, the carry-out section O of the carry-in conveyor 101 is incorporated.
The suction force at the carry-out section O ₀₁ of the carry-in conveyor 101 is set to be weaker than that of the other parts so that the individual stacked bodies F can be smoothly transferred from ₀₁ to the carry-in section I ₀₀ of the work transfer apparatus 100. There is.

Similarly, the carry-in section I ₀₆ is the work transfer device 1
The strip-shaped body 3 facing the unloading section O _{00 of 00} and forming a ladder shape
In order to hold the stacked body F carried in from the work transfer device 100 in a state of being superposed on the belt-like body 36, the carry-out conveyor 106 carrying 6 carries a suction device (not shown) for sucking and holding the stacked body F. It is _installed from the part I ₀₆ to the downstream side.

As shown in FIG. 1 and FIG. 2 showing the front shape of the work transfer device 100, the reinforcing column 1 is provided on the side frame 108 which is vertically erected on the work floor 107.
The base end portion of the support shaft 110 that horizontally protrudes via 09 is fixed. A pair of face plates 113 that rotatably hold two sprocket shafts 111 and 112 parallel to the support shaft 110 are fixed to the support shaft 110 in parallel with the side frame 108. A pair of left and right bogie sprockets 114 are fitted to both ends of these two sprocket shafts 111 and 112 which are arranged symmetrically with respect to the support shaft 110. The left and right bogie sprockets 114 are endless. The bogie toothed belt 115 is wrapped around the endless conveyor of the present invention. Further, a deceleration sprocket 118 connected to a drive sprocket 116 connected to a drive source (not shown) via a drive toothed belt 117 is integrally fitted to one end side of one sprocket shaft 111, whereby left and right carriages are mounted. 1. The sprocket 114 for the sprocket rotates synchronously, and the toothed belt 115 for the carriage is shown in FIG.
It is designed to rotate in the middle and clockwise.

A holder arm 120 for holding the bracket holder 119 coaxially with one of the sprocket shafts 111 is attached to the tip of the support shaft 110, and the bracket holder 119 is directed toward the connection / conveyance unit J _O. The base ends of a plurality of radially extending roller brackets 121 are fixed. Holding rollers 122 are rotatably attached to the tip ends of the roller brackets 121, and an endless seal belt 123 in the form of a tape is wound around the holding rollers 122.
Further, a suction box 124 having a rectangular cross section extending from the carry-in section I ₀₀ to the connection carrying section J _I to the carry-out section O ₀₀ is arranged on the opposite side of the holding rollers 122 with the support shaft 110 interposed therebetween. The suction box 1 is included in the box 124.
A vacuum pump (not shown) for keeping the inside of 24 in a negative pressure state is connected. A groove-shaped opening 125 is formed on the outer peripheral side of the suction box 124, and the seal belt 123 is slidably wound around the suction box 124 so as to close the opening 125. There is.

That is, the seal belt 123 is wound around the holding roller 122 and the suction box 124, and is integrally connected to the transport carriage 127 described later via the suction duct 157 described later, and the tooth for the carriage is used. Belt with 1
Along with the turning movement of 15, it is turned together with the turning movement.

It should be noted that suction is carried out at the carry-out section O ₀₀ of the work transfer apparatus 100 so that the stack F is smoothly transferred from the carry-out section O ₀₀ of the work transfer apparatus 100 to the carry-in section I ₀₆ of the carry-out conveyor 106. The suction force inside the box 124 is set to be weaker than the other portions.

On the outer peripheral edge of the face plate 113, an inner peripheral side of a guide rail 126 having a band plate shape having a constant thickness is integrally joined. The guide rail 126 has a flat plate-like portion corresponding to the carry-in section I ₀₀ and the carry-out section O ₀₀ ,
The two sprocket shafts 11 have a semi-cylindrical portion corresponding to the two connecting and transporting portions J _I and J _O for connecting them, and the center of curvature of these semi-cylindrical portions is
It is set so as to coincide with the axes of 1, 112, and a plurality of transport carriages 127 described below turn around along the guide rails 126.

Regarding the structure of these transport carriages 127,
This is as shown in FIGS. That is, FIG. 3 showing its sectional structure in a fractured state and FIG. 4 showing its side surface shape,
As shown in FIG. 5, a pair of left and right base holders 129 facing the side end surfaces S _S of the guide rails 126 are fixed to the left and right sides of the connecting plate 128 that face the outer peripheral surface of the guide rails 126 with a gap. And these base holders 129
A pair of front and rear revolving bases 131 capable of revolving via a bearing 130 around a rotation axis that is perpendicular to the traveling direction of the transport carriage 127 along the guide rails 126 are attached to each. Each of the swivel bases 131 is provided with a pair of guide rollers 132 that are in rolling contact with mutually parallel guide surfaces S _GI and S _GO formed on the inner peripheral side and the outer peripheral side of the side end of the guide rail 126. The guide rollers 132 are rotatably attached, and the distance between these guide rollers 132 is set to the guide rail 12.
It is set to an appropriate interval corresponding to the interval between the six guide surfaces S _GI and S _GO .

In each of the transport carriages 127, the connecting pins 133 of the left and right swivel bases 131 on either side thereof are connected to the above-described left and right carriage toothed belts 115 respectively.
The transport carriages 127 are connected to each other via a space, and the distance between them is set to be equal to the length L of the laminated body F shown in FIG. That is, the length of the toothed belt 115 for a dolly described above is set to an integral multiple of the length L of the laminate F,
In this embodiment, 12 carrier vehicles 127 are used as the guide rails 12.
6 are assembled at equal intervals.

Therefore, as the carriage toothed belt 115 turns, the carrier carriage 127 is connected to the carrier parts J _I , J _O.
When passing through a semi-cylindrical part corresponding to
As shown in FIG.
In the same manner as when 31 rotates and passes through a flat plate-shaped portion corresponding to the carry-in section I ₀₀ and the carry-out section O ₀₀ as shown in FIG. 4, the carrier truck 127 smoothly travels along the guide rail 126. Can be made.

A structure in which one of the pair of guide rollers 132 is biased to one of the guide surfaces S _GI and S _GO by a spring force is also conceivable. Since a large centrifugal force acts on the guide roller 132, the one guide roller 132 is urged to one of the guide surfaces S _GI and S _GO by a strong spring material having a spring force that overcomes the centrifugal force and the own weight of the transport carriage 127. In this case, the frictional resistance of the bearing portion of the guide roller 132 becomes very large to increase the running resistance, and a storage space for the spring material is required, which makes it difficult to make the transport carriage 127 compact.

At the center of each of the swivel bases 131, the steel ball 1 which can be in rolling contact with the side end surface S _S of the guide rail 126.
A steel ball holder 136 for accommodating 35 is formed, and the steel ball 135 accommodated in this steel ball holder 136 is guided to the guide rail 12
By rolling contact with the left and right side end surfaces S _S of the carrier 6, the rattling of the transport carriage 127 with respect to the guide rail 126 in the left-right direction is suppressed, and together with the guide roller 132, the transport carriage 127 with respect to the guide rail 126 is suppressed. This enables smooth running without rattling.

FIG. 6 shows a state in which the plane shape of the carrier truck 127 is broken, and FIG. 7 shows the appearance of a table guide plate and a pair of work tables that form a part thereof.

That is, the connecting ring 137 having an elliptic ring shape is integrally fixed to the upper end of the connecting plate 128. In this embodiment, the connecting ring 137, the connecting plate 128, the base holder 129, etc. The bogie body of the present invention is formed. Further, a pivot shaft 138 penetrating the connecting plate 128 is rotatably attached to a central portion of the connecting plate 128 so as to be perpendicular to the outer peripheral surface of the guide rail 126 via a bearing 139. . Further, the rotation stop key 140 is provided on the upper end of the turning shaft 138.
A central portion of a rectangular table guide plate 141 is integrally fitted to the swivel shaft 1 in this embodiment.
38, the table guide plate 141, and the like constitute the table base of the present invention.

At the lower end of the swivel shaft 138, there is provided a base of an offset arm 144 having an engagement pin 143 slidably fitted in a swivel guide groove 142 formed on the outer peripheral surface of the guide rail 126 and screwed to the tip thereof. The ends are integrally fixed. The turning guide groove 142 is in a state of being offset from the widthwise center of the guide rail 126 by a predetermined amount in the carry-in portion I ₀₀ and the carry-out portion O ₀₀ , and these offset amounts are determined by the table guide plate 141. Is set to the amount necessary for turning 90 degrees around the bearing 139 with respect to the connecting plate 128.

A pair of work tables 145 for adsorbing and holding the laminated body F are placed on the table guide plate 141, and the table guide plates 141 are provided at both longitudinal ends of the work tables 145. Engagement blocks 146 are slidably engaged with the both end portions so as to embrace them, so that the work table 145 slides with respect to the table guide plate 141 in the left-right direction in FIG. I'm supposed to get it. On the pair of work tables 145, an elliptical widening guide groove 147 formed on the front surface of the connection ring 137 so as to project from the back surface side thereof.
The engaging pins 148 slidably engaged with the table guide plate 14 are fixed to the table guide plate 14.
A pair of left and right clearance grooves 149 formed in the table guide plate 141 is penetrated along the width direction of No. 1.

Therefore, as the table guide plate 141 and the work table 145 pivot with respect to the connecting ring 137, the engaging pin 148 moves along the widening guide groove 147, and as a result, the distance between the work tables 145 is shown in FIG. Table guide plate 14 so as to move away from each other
It can slide with respect to 1. In the present embodiment, the pair of widening guide grooves 147 are made to communicate with each other in an elliptical shape, but they may be formed in an arc shape at 180 degrees apart from each other.

Suction chambers 150 are formed in the work table 145 along the longitudinal direction thereof, and the suction chambers 150 are closed by a cover plate 151. In addition, a plurality of suction holes 152 communicating with the suction chamber 150 are formed in the cover plate 151, and a fine grain-shaped uneven portion 153 for increasing the frictional force to the laminated body F is formed on the surface thereof. ing.
On the back surface side of the work table 145, a long hole 154 communicating with one end side in the longitudinal direction of the suction chamber 150 is formed along the movement direction, and a felt for sealing the table guide plate 141 is formed on the inner peripheral portion thereof. The seal ring 155 formed in step 1 is attached. Further, one end of a flexible suction duct 157 is connected to each of a pair of suction ports 156 formed in the table guide plate 141 so as to always be in communication with the elongated hole 154. The other end of the suction duct 157 is integrally connected to the above-mentioned seal belt 123, and
With the turning operation of the seal belt 123 which is interlocked with 7, it is possible to communicate with the opening 125 of the suction box 124. That is, the other end of the suction duct 157 is connected to the seal belt 123 at an interval equal to the arrangement interval of the carriages 127.

Therefore, the opening 12 of the suction box 124
5, the suction duct 157 communicates with the seal belt 123, the suction duct 157 and the suction chamber 150 of the work table 145 are connected to the suction port 156 and the long hole 1 regardless of the position of the work table 145.
It is always in communication with each other through 54, and both widthwise end portions of the laminated body F placed on the cover plate 151 of the work table 145 are held in close contact with each other by the suction holes 152. In this case, the uneven portion 153 described above is effective in holding the stacked body F so as not to be displaced with respect to the cover plate 151 when the stacked body F is widened in a sucked state.

The swivel guide groove 14 extending from the carry-in section I ₀₀ of the work transfer device 100 to the carry-out section O ₀₀ through the connecting and conveying section J _I.
FIG. 8 shows the locus of movement of the carrier truck 127 in the present embodiment along line 2. That is, the individual stacked bodies F separated from each other are carried into the work table 145 in the closest state from the carry-out section O ₀₁ of the carry-in conveyor 101 at the carry-in section I ₀₀ of the work transfer device 100, but the cutter drum 10
The carrier truck 1 in which the cut portion of the continuous laminate F _C , which is cut along the cutting line C ₁ by the cutter blade 5 of FIG.
The carry-in conveyor 101 so as to match the boundary portion of 27.
The transport timings of the continuous stacked body F _C and the individual stacked bodies F and the traveling timing of each transport carriage 127 of the work transfer device 100 are adjusted in advance.

When the transport carriage 127 reaches the connection transport unit J _I on the way, as shown in FIG.
The direction of 45 changes, and the offset amount of the swivel guide groove 142 gradually changes as the transport carriage 127 travels in the connected transport portion J _I. Therefore, the engagement pin 143 engaged with the swivel guide groove 142 is held. The pivot shaft 138 that moves together with the table guide plate 141 and the like connects the connecting plate 128 and the connecting ring 1.
37, etc., start to turn counterclockwise in the figure, and along with this, the engagement pin 148 of the work table 145 moves counterclockwise in the figure along the widening guide groove 147 of the connection ring 137, resulting in a pair of The work table 145 has a wider interval, and the laminated body F is widened.

As described above, in the above-described embodiment, the continuous laminated body F _C is preliminarily changed to the individual laminated body F by the cutter drum 105.
It is cut into pieces and carried into the work transfer device 100. However, a perforation is cut along the cutting line C ₁ of the continuous laminated body F _C by the cutter blade of the cutter drum 105 to form the continuous laminated body F. _In the state of _C , the work is transferred to the work transfer device 100, and the transfer carriage 127 is in the middle of the connected transfer section J.
_By reaching _I , the orientation of the work table 145 changes as shown in FIG.
It is also possible that _C is cut at the perforation. In this case, the continuous stacked body F _C is carried into the work delivery device 100 in a stable shape, and the suction force by the suction device (not shown) that holds the continuous stacked body F _C by suction via the conveyor belt 103 is set strongly. There is no need, and this suction device can be made compact.

[0056] Note that part of the conveying carriage 127 adjacent with the turning operation of the transport carriage 127 in FIG. 8 is in the state of each other interfere, as apparent from FIG. 1, the connection conveying section J _I However, since the carrier vehicles 127 are not on the same plane, such mutual interference does not actually occur.

In this way, each laminated body F is swung 90 degrees and widened, and the laminated body F held in this state is transferred to the carry-out section O ₀₀ of the work transfer device 100, that is, the carry-in section I ₀₆ of the carry-out conveyor 106. Ladder-shaped strip 36 (see FIG. 1)
3), and is transferred to the carry-out conveyor 106 side with the completion of the suction operation on the transport carriage 127 side. Then, when the transport carriage 127 reaches the midway connection transport unit J _O , the operation completely opposite to the above case, that is, the operation of shifting from the lower side to the upper side in FIG.
Come back to ₀₀ .

In the above-described embodiment, the case where the laminated body F is widened has been described. However, in the case of the laminated body F that does not need to be widened, the table guide plate 141 and the work table 145 are integrally fixed. Thus, the widening guide groove 147 and the engaging pin 148 can be omitted.

[0059]

According to the work transfer device of the present invention, in a production line of a sheet-shaped work, especially a disposable diaper, a continuously supplied laminated body is rotated by 90 degrees with respect to its conveying surface. Since it is possible to transfer the laminated body in a widened state by changing the direction,
2. It is possible to realize the manufacturing method of the removable diaper shown in FIG.

Further, the pair of work tables are moved in the width direction of the work in conjunction with the turning motion of the table base. The turning motion of the table base with respect to the transport carriage and the pair of work tables along the width direction of the work with respect to the table base. When performing the movement at the same time, for example, in the two connecting and conveying sections between the work loading section and the work unloading section, the guide grooves that are displaced to the one side and the other side in the width direction of the endless conveyor are provided along the conveyance direction of the carriage. And a pair of widening guide grooves 147 are formed on the carriage, and engaging pins respectively engaging with the widening guide grooves 147 are formed. When projecting on the work table respectively, a pair of work tables can be connected to the work width by interlocking with the turning motion of the table base with respect to the carrier. It is possible to move to the direction,
It is possible to shorten the traveling section required for these operations and make the entire apparatus compact.

Further, when the work carry-in section and the work carry-out section are set to portions having a linear transport locus, the work can be delivered while being held flat, and the delivery of the work is reliable. It is easy to design a device that secures.

On the other hand, having a pair of guide surfaces parallel to each other,
And, along with the guide rail in which the curved portion around the axis parallel to these guide surfaces is formed, the transport carriage that can move in the direction orthogonal to the axis is parallel to the guide surface of the guide rail with respect to the carriage main body and At least two front and rear swing bases that are mounted so as to be respectively rotatable around rotation axes that are perpendicular to the traveling direction of the carrier along the guide rails, and a pair of each of these rotation bases is provided around an axis that is parallel to the rotation axis. If the guide rollers are rotatably mounted so as to sandwich the guide rails, and each has a pair of guide rollers that make rolling contact with the guide surfaces, the transport carriage can be smoothly run, and it can be made light and compact. You can

When the above-mentioned carrier truck is incorporated in the work transfer device, the whole device can be made compact.

[Brief description of drawings]

FIG. 1 is a side view showing a schematic structure of an embodiment of a work transfer device according to the present invention capable of realizing the manufacturing method for the break-away type diaper shown in FIGS. 12 and 13.

FIG. 2 is a front view showing a schematic structure of the embodiment shown in FIG.

FIG. 3 is a cutaway sectional view corresponding to FIG. 2 of the carrier truck according to the present embodiment.

FIG. 4 is a side view showing a structure in which the transport carriage shown in FIG. 3 is broken along a table movement guide groove, and shows a state where the carriage is traveling along a linear guide rail.

FIG. 5 is a side view of the main part of the transport carriage corresponding to FIG. 4, showing a state where the carriage is traveling along a curved guide rail.

FIG. 6 is a plan view in which a part of the transport carriage shown in FIG. 3 is cut away.

FIG. 7 is a perspective view showing appearances of a table guide plate and a pair of work tables that form a part of the transport carriage.

FIG. 8 is a conceptual diagram showing a movement locus of the carrier truck in the embodiment shown in FIG.

FIG. 9 is a perspective view showing the outer appearance of the snap-on diaper that is the subject of the present invention.

FIG. 10 is a perspective view showing the appearance of the breakable diaper shown in FIG.

FIG. 11 is a cross-sectional view schematically showing the structure of the flattenable diaper shown in FIG. 10 in a flattened state.

FIG. 12 is a work process diagram showing an example of a method for manufacturing a disposable diaper to be put together with FIGS. 13 to 15, showing a state in which a continuous laminated body is cut into individual laminated bodies, swiveled 90 degrees, and widened. Show.

13 is a process step diagram showing an example of a method for manufacturing a diaper to be put on together with FIG. 12, FIG. 14, and FIG. 15, showing a state in which a widened laminated body is joined to a belt-shaped body.

FIG. 14 is a work process diagram showing an example of a method for manufacturing a diaper to be put on together with FIGS. 12, 13 and 15, showing a state in which an elastic member around the waist is joined to a belt-shaped body.

FIG. 15 is a work process diagram showing an example of a method for manufacturing a disposable diaper to be put together with FIG. 12 to FIG. 14, in which a portion serving as an opening around the leg is cut out from the belt-shaped body and the belt-shaped body is folded in two. The state which cut | disconnected to a disposable diaper and a discard part is shown.

[Explanation of symbols]

36 Belt-shaped body 100 Work transfer device 101 Carry-in conveyor 102 Direction changing roller 103 Conveyor belt 104 Conveyor drive pulley 105 Cutter drum 106 Carry-out conveyor 107 Work floor 108 Side frame 109 Reinforcement column 110 Support shaft 111, 112 Sprocket shaft 113 Face plate 114 Truck sprockets 115 Toothed Belt for Truck (Endless Conveyor) 116 Drive Sprocket 117 Drive Toothed Belt 118 Deceleration Sprocket 119 Bracket Holder 120 Holder Arm 121 Roller Bracket 122 Holding Roller 123 Seal Belt 124 Suction Box 125 Opening 126 Guide Rail 127 Transport Cart 128 Truck Main body 129 Base holder 130 Bearing 131 Swiveling base 132 Guide roller 133 Connecting pin 134 Coupling metal fitting 135 Steel ball 136 Steel ball holder 137 Connection ring 138 Swivel shaft 139 Bearing 140 Rotation stop key 141 Table guide plate 142 Swivel guide groove 143 Engaging pin 144 Offset arm 145 Work table 146 Engaging block 147 Widening guide groove 148 Engaging Pin 149 Escape groove 150 Suction chamber 151 Lid plate 152 Suction hole 153 Concavo-convex portion 154 Long hole 155 Seal ring 156 Suction port 157 Suction duct I ₀₀ Work transfer device carry-in part O ₀₀ Work transfer device carry-out part J _I , J _O work Connection of transfer device I ₀₁ Carry-in part of carry-in conveyor O ₀₁ Carry-out part of carry-in conveyor I ₀₆ Carry-in part of carry-out conveyor F _C Continuous laminate F Laminate S _S side end surface S _GI , S _GO guide surface C ₁ Cutting line

Claims (8)

[Claims] 1. An endless conveyor having a sheet carrying-in and carrying-out section for workpieces, and two connecting and carrying sections connecting the carrying-in section and the carrying-out section, and a carrying carriage attached to the endless conveyor, A table base rotatably attached to the carrier, a work table integrally attached to the table base to transfer the work, and a suction means for suction-holding the work on the work table. And a means for rotating the table base by 90 degrees about an axis perpendicular to the transfer surface of the work with respect to the transfer carriage at the one connection transfer section from the carry-in section to the carry-out section. Characteristic work transfer device. 2. An endless conveyor having a sheet-like work carrying-in part and a carrying-out part, and two connecting and carrying parts connecting the carrying-in part and the carrying-out part, and a carrying carriage attached to the endless conveyor, A table base rotatably attached to a carrier, and a pair of work tables attached to the table base so as to be movable in opposite directions along the width direction of the work and for delivering the work. And a suction means for sucking and holding the work on the pair of work tables, and transporting the work from the table base to the transport carriage by the one connection transport unit from the loading unit to the unloading unit. A means for turning 90 degrees about an axis perpendicular to the plane, and the pair of work units at the one connecting and conveying section from the carry-in section to the carry-out section. Means for moving the pair of work tables so as to separate the work tables from each other so as to extend the work in the width direction, and the table base for the table base in the other connecting and conveying section from the carry-out section to the carry-in section. A means for turning 90 degrees around an axis perpendicular to the transfer surface of the work with respect to the transfer carriage, and a pair of the work tables approaching each other at the other connected transfer section from the carry-out section to the carry-in section. And a means for moving the pair of work tables to restore the pair of work tables to the original width. 3. The turning operation of the table base with respect to the transport carriage and the movement of the pair of work tables along the width direction of the work with respect to the table base are performed at the same time. Work transfer device described. 4. A means for moving the pair of work tables along the width direction of the work is a pair of widening guides formed on the carriage by using a rotation axis of the table base with respect to the carriage as a rotational symmetry axis. The work transfer according to claim 2 or 3, further comprising: a groove and a pair of engagement pins that are respectively provided on the pair of work tables so as to project and engage with the widening guide groove. apparatus. 5. The endless conveyor is formed with at least two portions having linear transport trajectories, and the work loading portion and the work unloading portion are respectively set to the portions having linear transport trajectories. The work transfer device according to any one of claims 1 to 4, characterized in that 6. The means for rotating the table base with respect to the transport carriage is formed along the transport direction of the transport carriage by the endless conveyor, and comprises two means between the carry-in section and the carry-out section. And a guide groove that is displaced in the width direction of the endless conveyor in the connecting and conveying section from the other side, and an engaging pin that projects from the table base and engages with the guide groove. The work transfer device according to any one of claims 1 to 5. 7. A guide rail is further provided, which is provided along the endless conveyor, has a pair of guide surfaces parallel to each other, and has a portion curved around an axis parallel to the guide surfaces. The transport carriage that moves along a guide rail in a direction orthogonal to the axis includes a carriage body connected to the endless conveyor, and a carriage body parallel to the guide surface of the guide rail with respect to the carriage body. And at least two front and rear swing bases that are mounted so as to be respectively rotatable around a rotation axis that is perpendicular to the traveling direction of the carrier, and a pair of each of these rotation bases is provided around the axis parallel to the rotation axis. And a guide roller that is rotatably mounted so as to sandwich the rail and that is in rolling contact with each of the pair of guide surfaces. Requirement 1
7. The work transfer device according to claim 6. 8. A conveyor capable of moving in a direction orthogonal to an axis along a guide rail having a pair of guide surfaces parallel to each other and having a curved portion about an axis parallel to the guide surfaces. The carriage is a carriage body and a rotation axis line parallel to the guide surface of the guide rail with respect to the carriage body and perpendicular to the traveling direction of the conveyance carriage along the guide rail. At least two front and rear swivel bases mounted rotatably on each of the pair of swivel bases, and each pair of swivel bases rotatably mounted so as to sandwich the guide rail around an axis parallel to the rotation axis. A carrier truck having guide rollers for rolling contact with each other.