JPH05213523A - Film folding device - Google Patents

Abstract

PURPOSE:To provide a film folding device for forming a wide width film into the shape appropriate for physical distribution and storage. CONSTITUTION:A film folding device has a transferring mechanism for transferring a wide width film 3, which is folded like a Buddhist scriptures, and a position detecting means for detecting the position of the wide width film 3 transferred by the transferring mechanism, and a folding mechanism 9 for folding the wide width film 3 to the direction crossing the edge of fold, which is folded like a Buddhist scriptures, at a right angle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film folding device for a wide film, and more particularly to a film folding device used at the end of a film forming process for a wide film used for cultivation in a covering facility in agriculture.

[0002]

2. Description of the Related Art Generally, a wide film is manufactured in a continuous process, and after a desired raw material is formed into a desired thickness by inflation molding or the like, it is cut into a predetermined width, for example, a width of 2 to 4 m. A long cylindrical column is formed by winding a predetermined length around a cylindrical paper tube or the like corresponding to the width.

[0003]

However, in the above-mentioned long cylindrical columnar shape of the conventional wide film, the pallet stacking which is generally used at the time of physical distribution cannot be adopted, and the dedicated transfer cure is adopted. There was a problem that I needed equipment. Also, when storing in a warehouse,
There was a problem that the storage form different from that of general products had to be applied, workability was inferior, and much labor was required for management.

The present invention has been made in view of these points, and overcomes the above-mentioned problems of the conventional ones.
An object of the present invention is to provide a film folding device capable of forming a wide film into a shape suitable for distribution and storage.

[0005]

In order to achieve the above-mentioned object, the film folding apparatus of the present invention according to claim 1 is a transfer mechanism for transferring a wide film that has been folded in a suture and a transfer mechanism for transferring the wide film. And a folding mechanism that folds the wide film at least in a direction orthogonal to the folds of the sutra-folding.

According to a second aspect of the present invention, in the film folding apparatus according to the first aspect, the folding mechanism holds at least a part of the wide film, and
It is characterized in that it has a pinching means that is movable at least in a direction orthogonal to the fold of the sutra-folding.

Further, the film folding apparatus of the present invention according to claim 3 is the film folding device according to claim 1, wherein the folding mechanism is rotatable and at least in a direction orthogonal to the fold line of the sutra fold. It is characterized by having a folding roll that is movable.

[0008]

According to the film folding apparatus of the present invention as defined in claim 1, since the wide film that has undergone sutra folding can be formed into a square shape having a smaller projected area, it is made of box-shaped corrugated cardboard or the like. Packing becomes possible, and the inconvenience of having to take special handling forms in distribution and storage can be eliminated.

As described in claim 2, by providing the sandwiching means as the folding mechanism, in addition to the operation described in claim 1, the wide film subjected to the sutra folding is surely sandwiched and folded. Can be folded.

By providing a folding roll as a folding mechanism, as described in claim 3, in addition to the operation described in claim 1, the folding film is folded during folding operation of the wide film. Deformation can be surely prevented.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.

1 to 4 show a first embodiment of a film folding apparatus according to the present invention, FIG. 1 is a plan view showing a main portion, and FIG. 2 is a front view showing the main portion. FIG. 3 is a right side view, FIG. 4 is an enlarged view showing a main part of the folding mechanism, and FIG. 5 is an enlarged view showing a main part of the folding means.

As shown in detail in FIGS. 1 to 5, the film folding apparatus 1 in this embodiment is arranged so as to be connected to a supply conveyor 2 shown by a chain double-dashed line in FIG. And
This film folding device 1 has a plurality of, in this embodiment, 3
The conveyors 4a, 4b, and 4c of the table are arranged as a transfer mechanism that makes it possible to convey the wide film 3 on which the sutra-folding is performed in the traveling direction indicated by an arrow A in the drawing. Further, these conveyors a, 4b, 4c are provided in a direction orthogonal to the traveling direction of the wide film 3, and the upper surfaces of the conveyors a, 5b, 5c constitute table-like working surfaces 5a, 5b, 5c. Further, among these conveyors 4a, 4b, 4c, the conveyors 4a, 4c arranged at the left and right ends in the figure are respectively fixed to appropriate frames not shown, and the conveyor 4b arranged in the center is shown in the figure. As shown in FIG. 2, it can be moved up and down by an appropriate lifting means 6 such as a lifter. Further, below the conveyor 4b arranged in the center of the drawing, as shown in FIG. 3, a desired carry-out conveyor 7 for carrying out is arranged on the downstream side in the traveling direction of the wide film 3. Then, these conveyors 4a, 4b, 4c, in a normal use state, have work surfaces 5a,
5b and 5c have the same height. Further, these conveyors 4a, 4b, 4c are controlled and operated by a desired drive device (both not shown) by an appropriate control device.

Further, as shown in FIGS. 1 and 3, each of the conveyors 4a, 4b, 4c serving as the transfer mechanism.
Of the wide film 3 supplied from the supply conveyor 2 to the conveyors 4a, 4b, 4c as the transfer mechanism at an appropriate position on the downstream side in the traveling direction of the wide film 3.
An optical switch 8 is arranged in a suitable frame (not shown) as a position detecting means for detecting the position of. The position detecting means may be one that can detect at least the position of the leading end of the wide film 3 in the traveling direction, and for example, a contact sensor such as a limit switch or various optical sensors may be used. It is not limited to the examples. Further, the position where the position detecting means is installed can be changed according to the specifications, and is not particularly limited to this embodiment.

Further, a folding mechanism 9 for folding the wide film 3 is provided in the vicinity of the downstream end of the wide films 3 in the traveling direction of the conveyors 4a, 4b, 4c. In this embodiment, the folding mechanism 9 is designed to hold the wide film 3 in the vicinity of the end portion at the front end in the traveling direction to perform folding.

Further, the folding mechanism 9 will be described. As shown in FIG. 1, the conveyors 4a, 4b, 4c.
The two rails 10 and 10 are mounted on an appropriate frame 11 at appropriate intervals so as to be close to the downstream end of the wide film 3 in the traveling direction, and the conveyor 4
a, 4b, 4c in the parallel direction, that is, conveyors 4a, 4
It is provided in parallel with the direction orthogonal to the crease of the sutra-folding of the wide film 3 transferred onto b and 4c. Further, folding means 12 for the wide film 3 are provided at both ends of the rails 10, 10 to conveyers 4a, 4b, 4c.
It is mounted so that it can move in parallel with the parallel direction.

As shown in FIGS. 4 and 5, the folding means 12, 12 have a base 13 having a width slightly shorter than the distance between the rails 10, 10 and an upper portion of the base 13 from the center thereof. A bearing stand 15 formed in a generally convex shape on the front side as a main body 16 is formed by the extended standing portion 14.

An appropriate size is formed by penetrating through the central portion of the upright portion 14 of the bearing stand 15 in a direction orthogonal to the rail 10 (direction orthogonal to the folding line of the wide film 3). A main through hole 17 is provided. Further, the rail 1 is provided near both ends of the base 13 of the bearing stand 15.
Two sub-through holes 18, 18 having an appropriate size are formed so as to penetrate in a direction orthogonal to 0, respectively.

As shown in FIG. 4, in the main through hole 17, a main shaft 19 having an appropriate length is provided at both ends of the main shaft 19 with the bearing base 15.
It is rotatably and slidably supported via an appropriate bearing 20a so as to extend from the. A rod 23 of a suitable reciprocating cylinder 22 for moving the main shaft 19 in the axial direction is connected to the end of the main shaft 19, and the reciprocating cylinder 22 is attached to the bearing base 15 via a mounting base 21. It is firmly fixed. Further, an appropriate electromagnetic brake 24 is fixed together with a brake plate 25 on the opposite side of the bearing base 15 to which the reciprocating cylinder 22 is attached, so that the rotation of the main shaft 19 can be stopped.
Further, a first pinion 27 is fixed to an appropriate position on the side of the main shaft 19 facing the wide film 3 via a desired fixing means 26 such as a sunken key. On the frame 11 below the first pinion 27, a first rack 28 having an appropriate length that meshes with the first pinion 27 is arranged in parallel with the rail 10.

Further, a rear surface 31 of a cylinder mounting base 30 is eccentrically fixed to a tip end portion 29 of the main shaft 19 which faces the wide film 3. The cylinder mount 30 has a generally U-shaped cross-section that is open toward the wide film 3, and when the wide film 3 is not bent, the protruding flange portions 32 and 32 are They are arranged so as to face each other in the vertical direction. The opening portion 33 formed by the protruding flange portions 32, 32 faces the wide film 3 mounted on the conveyors 4a, 4b, 4c. Appropriate reciprocating cylinders 34, 34 are fixed to the outer sides of the protruding flange portions 32, 32, respectively, and rod through holes 35, 35 are formed at appropriate positions of the protruding flange portions 32, 32. The rods 36, 36 of the reciprocating cylinders 34, 34 are inserted into the shaft in a loosely fitted state. The reciprocating cylinders 34, 34 have rods 36, 36 having distal end portions 37, 37 with the film gripping member 3 having an appropriate shape.
8, 38 are fixed. This film gripping member 3
Appropriate film damage prevention members 39, 39 made of hard rubber or the like are fixed to the surfaces of the films 38, 38 facing the wide film 3 in a desired shape. The whole of them serves as a holding means for holding the wide film 3.

An appropriate drive motor 41 is disposed above the bearing stand 15 via a mounting plate 40 so that its output shaft 42 projects toward the opposite side of the conveyors 4a, 4b, 4c. There is. An appropriate first pulley 43 is fixed to the output shaft 42 of the drive motor 41.

Further, as shown in FIG. 4, in each of the sub through holes 18, 18, an axle 44 having an appropriate length is provided so that both ends thereof extend from the bearing base 15, and an appropriate bearing 20 is provided.
It is rotatably attached via b and 20b. The rail 1 is attached to both ends of the axles 44, 44.
Appropriate wheels 45, 45 for traveling on 0, 10 are fixed respectively. Further, a second pulley 46 and a second pinion 47 are fixed in order from the inner side to the outer side on the same side of the single axle 44 as the output shaft 42 of the motor 41. A suitable belt 48 is wound around the second pulley 46 and the first pulley 43 fixed to the drive motor 41. Then, by operating the drive motor 41, the axles 45, 45 rotate, and
The wheels 45, 45 rotate and the bearing base 15 moves to the rail 1.
It is designed to run over 0 and 10. Further, as shown in FIG. 4, an appropriate second rack 49 meshed with the second pinion 47 is arranged on the frame 11 outside the rails 10, 10 in parallel with the rail 10.

The film folding apparatus 1 is controlled and operated by an appropriate control device (not shown).

By the way, the film folding apparatus 1 of this embodiment
The wide film 3 which has been subjected to the sutra folding is supplied to the sutra folding machine 50 as shown in FIG. This sutra-folding machine 50 will be described with reference to FIG. Arrow B from left to right
You can drive in the direction indicated by. Then, a pair of intermediate rolls 53 provided in the central portion of the beam portion at the upper end of the frame 51.
By a and 53b, it is sent downward in the drawing indicated by arrow C. Then, the intermediate rolls 53a, 53b
The intermediate roller 53a on the left side of FIG.
Is stuck.

Further, the intermediate roll 53 of the frame 51
A drive motor 54 is provided to the left of a and 53b, and a powder clutch 57 to which an appropriate pulley 56 is fixed is attached to this drive motor. A desired belt 58 is wound around the pulley 56 provided on the powder clutch 57 and the pulley 55 provided on the intermediate roll 53a.

A swing mechanism 59 for the sheet-shaped wide film 3a is provided below the upper beam portion of the frame 51 provided with the intermediate rolls 53a and 53b. The swing mechanism 59 is suspended and supported by an appropriate support base 60 fixed to the lower surface of the upper beam portion of the frame 51. A pivot shaft 62 is pivotally attached to the support base 60. An intermediate pulley 61 is rotatably attached to the pivot shaft 62 and a swing frame 63 is fixed thereto. A pair of pinch rollers 64a and 64b are provided at the tip of the swing frame 63 by fixing a desired pulley (not shown) to one of the pinch rollers 64a. This pair of pinch rollers 64a, 64b
Are abutted with a desired abutting force so that the sheet-shaped wide film 3a can be sandwiched. Appropriate tensioners 65, 65 are provided on the left and right of the middle portion of the swing frame 63. A desired belt 66 is wound around the intermediate pulley 61 and the pulley 56 provided on the powder clutch 57. Further, the intermediate pulley 61 and a pulley (not shown) fixed to the pinch roller 64a are provided with the tensioners 65 and 6 described above.
A desired belt 67 is wound around the belt 5. Also,
At an appropriate position of the swing frame 63, a gear motor 68 is arranged with its rotation shaft 69 facing downward. A male screw is formed on the outer circumference of the rotary shaft 69.

An appropriate supporting member 71 is fixed to the left of the frame 51. A support shaft 72 is pivotally attached to the support member 71, and a pulley 74 is attached to the support shaft 72.
Is rotatably mounted, and the pinion 73 is fixed. A rack is mounted above the pinion in a meshed state, and the rack is swingable. Further, a female screw is provided at one end of the rack 70, and the rotary shaft 6 of the gear motor 68 is provided.
It is screwed with the male screw provided on the No. 9.

Below the swing mechanism 59,
A conveyor 75 fixed to a support frame (not shown) is provided below the swing mechanism 59 at appropriate intervals in a predetermined carry-out direction. Further, film pressing arms 76, 76 having an appropriate shape are provided at both ends of the conveyor 75. The film pressing arms 76, 76 are fixed to pivots 77, 77 rotatably provided on an appropriate frame (not shown) so as to be rotatable. Further, stopper cams 78, 78 are fixed to the support shafts 77, 77. The stopper cams 78, 78 are formed with protrusions 79, 79 having an appropriate shape, and desired protrusion members (not shown) are hooked on the protrusions 79, 79. Further, a roller 80 is provided at an appropriate position of the film pressing arm 76.
Is provided. At an appropriate position below the roller 80, an eccentric cam 81 is fixedly arranged on a rotation support shaft 82 provided on an appropriate frame (not shown). Further, a pulley 83 is fixed to the rotary support shafts 82, 82 to which the eccentric cam 81 is fixed. Then, the pulleys 83 provided on the rotation support shafts 82, 82,
An appropriate belt 84 is wound between 83. Further, the pulley 83 on the left side of the drawing is a two-stage pulley,
A relay pulley 86 in which the output of an appropriate drive motor 85 arranged near the lower end of the frame 51 is arranged on the lower left side in the drawing.
The rotational driving force is transmitted by the desired belts 88a and 88b to which tension is applied by appropriate tensioners 87 and 87 via.

The output of the drive motor 85 is also transmitted by the belt 89 to the pulley 74 for driving the rack 70 described above via the relay pulley 86. Further, a known film cutting mechanism (not shown) is provided at an appropriate position in the traveling direction of the sheet-shaped wide film 3a so as to cut the sheet-shaped wide film 3a into a desired length. ..

On the right side of the conveyor 75 in the figure,
An appropriate carry-out conveyor 90 is arranged so that the wide film 3 that has been folded in a sutra can be carried in the direction indicated by the arrow D in the figure. Further, the sutra-folding machine 50 is controlled and operated by an appropriate control device (not shown).

It is to be noted that the sutra-folding machine 50 and the film folding device 1 are connected by an appropriate transfer means to continuously perform sutra-curving and folding of the sheet-shaped wide film 3a, thereby reducing the intermediate stock. Although desirable in the sense, the sheet-shaped wide film 3a can be folded and folded separately. The connection relationship between the sutra folding machine 50 and the film folding apparatus 1 may be determined by the installation space, economy, design concept, and the like.

Next, the operation of this embodiment having the above-mentioned structure will be described.

First, the operation of the sutra-folding machine 50 of this embodiment will be described.

In this embodiment, the sheet-shaped wide film 3a is used as the dancer roll 52 and the intermediate rolls 53a, 5a.
3b and pinch rollers 64a and 64b. When a control device (not shown) is operated in this state, the control device issues a control command to a desired device, and the sutra-folding machine 50 is driven. And frame 5
When the drive motor 85 provided near the lower end of 1 is operated,
The pinion 73 rotates via the relay pulley 86 to rotate the rack 7
0 moves. The rack 70 is moved left and right by rotating the drive motor 85 forward and backward. Then, by moving the rack 70 in the left-right direction, the rack 70
The swing frame 63, to which the gear motor 68 screwed at one end thereof is fixed, is swung about the rotary shaft 62 as a fulcrum as indicated by an arrow E in the figure, and the entire swing mechanism 59 is traversed with a desired width. It will be shaken.

Further, by driving the gear motor 68 fixed to the swing frame 63, the tip of the rack 70 screwed with the rotary shaft 69 of the gear motor 68 can be moved up and down. This allows rack 7
The swing width of the swing mechanism 59 can be made variable by making the connection point between the rack 70 and the rotary shaft 69 of the gear motor 68 variable while the movement distance of 0 is fixed. Then, by making the swing width of the swing mechanism 59 variable, the folding positions of the sheet-shaped wide film 3a on the left and right sides in the drawing can always be set to the same position.

When the swing mechanism 59 starts the traverse motion, when the drive motor 54 provided on the upper portion of the frame 51 is operated, the pinch rollers 64a and 64b provided at the lower end of the swing mechanism 59 are operated, With the traverse motion of the swing mechanism 59 described above, the sheet-shaped wide film 3a can be fed downward. Then, the sheet-shaped wide films 3a fed from the pinch rollers 64a and 64b are stacked on the conveyor 75 while being folded back in the left-right direction at a desired position in the drawing.

Further, when the sheet-shaped wide film 3a is folded back at a desired position on the conveyor 75, the tip of one film pressing arm 76 is on the conveyor 75 like the film pressing arm 76 shown on the right side in the figure. Then, the sheet-shaped wide film 3a is clamped by the film pressing arm 76 and the conveyor 75, and the sheet-shaped wide film 3a is prevented from being dragged in the direction after being folded back. When the sheet-shaped wide film 3a reaches the folding position on the left side in the figure, the tip of the other film pressing arm 76 shown on the left side in the figure descends onto the conveyor 75, and the film on the right side in the figure. The holding arm 76 is designed to jump up. The vertical movement of the film pressing arm 76 is
By rotating the rotation support shaft 82 via a drive motor 85 provided below the frame 51, the rotation support shaft 82 is rotated.
It is performed by rotating the eccentric cam 81 fixed to the. More specifically, when the eccentric cam 81 is rotated about the rotation support shaft 82, the roller 80 provided below the film pressing arm 76 in contact with the outer periphery of the eccentric cam 81 rotates the eccentric cam 81. Move up and down,
The film pressing arm 76 can also be moved up and down around the support shaft 77.

In the present embodiment, the film pressing arm 76 is lowered by gravity. Further, the eccentric cams 81, 81 provided on the left and right sides in the figure are arranged at vertically symmetrical positions with respect to each other.

In this way, the eccentric cams 8 provided on the left and right sides in the figure
By arranging 1 and 81 at vertically symmetrical positions, the film holding arms 76 and 76 on the left and right in the figure are alternately moved up and down to sandwich the folded portion of the sheet-shaped wide film 3a. Then, a sheet-shaped wide film 3 having a desired length is provided by an appropriate sensor (not shown).
After "a" is fed from the pinch rollers 64a, 64b, the sheet-shaped wide film 3a is cut at an appropriate position and subjected to sutra folding. Then, the wide film 3 in which the film pressing arms 76 and 76 have been subjected to sutra folding
When the conveyor 75 and the carry-out conveyor 90 are operated in synchronism with each other, the wide film 3 having the sutra-folding can be transferred onto the carry-out conveyor 79.

Therefore, according to the sutra-folding machine 50 of the present embodiment, the sheet-shaped wide film 3a fed from the pinch rollers 64a and 64b has a desired width on the conveyor 75 while being traversed. Since the folded-back portion can be reliably held by the film pressing arms 76 and 76 while moving right and left and gradually descending, the sutra-folding is surely performed.

Next, the operation of the film folding apparatus 1 of this embodiment will be described with reference to FIGS. 1 to 5 and 7.

FIG. 7 is an explanatory view for explaining the operation of the folding means.

First, when the wide film 3 which has been folded by the supply conveyor 2 is transferred onto the conveyors 4a, 4b and 4c in the traveling direction indicated by the arrow A in FIG. 1, the wide film 3 advances. The front end of the direction is detected by the optical sensor shown in FIG. 3, and the conveyors 2, 4a, 4b, 4c are stopped by a control command from a control unit (not shown). The leading end and the trailing end of the wide film 3 in the advancing direction are extended to a desired length before and after the conveyors 4a, 4b, 4c in the advancing direction.

Next, when the drive motor 41 provided on the upper portion of each bearing stand 15 in the initial position is operated, the driving force is transmitted to the axle 44 and the wheels 45 fixed to the axle 44.
Is rotated to move the respective folding means 12, 12 toward the center in the longitudinal direction to the predetermined starting position on the rail 10.
At this time, the facing surfaces of the film gripping members 38, 38 are in a separated state so that the end portion in the longitudinal direction of the wide film 3 can be seen from above and below. Then, at the predetermined position, the first pinion 27 fixed to the main shaft 19 meshes with the first rack 28.

Next, when the respective reciprocating cylinders 34, 34 are driven to bring the film holding members 38, 38 into close proximity, the film damage preventing members 39, 39 provided on the surfaces of the film holding members 38, 38 are removed. Between the wide film 3
Can be clamped.

Next, the bearing stand 15 of the one folding means 12
When the drive motor 41 provided in the upper part is further operated, the main shaft 19 travels on the rail 10 while rotating due to the engagement between the first pinion 27 and the first rack 28. Then, when the first pinion 27 makes a half rotation, the cylinder mount 30 fixed to the tip portion 29 of the main shaft 19 in an eccentric state causes the positions of the reciprocating cylinders 34, 34 provided on the respective projecting flange portions 32, 32 to move. Can be flipped up and down. This means that one end portion in the longitudinal direction of the wide film 3 is picked up and folded back, as shown by a chain double-dashed line in FIG. 7. The length of the first rack 28 is set to a length that the first pinion 27 makes a half rotation from the starting point position. Therefore, the first pinion 27 will be disengaged from the first rack after one half rotation or more. Further, the disengaged position where the first pinion 27 is disengaged from the first rack is detected by an appropriate sensor 91a shown in FIG. The rotation due to the inertia of 19 can be forcibly stopped. Note that other known rotation preventing means may be applied instead of the electromagnetic brake 24.
The present invention is not limited to this example.

In this disengaged position, the second pinion 47 fixed to the axle 44 is adapted to mesh with the second rack 49. Then, by operating the drive motor 41, the folding means 12 can run on the rail 10 toward the central portion in the longitudinal direction in a state where one end of the wide film 3 is inverted and fold one end of the wide film 3.
Then, when one end of the wide film 3 is folded to a desired folding position, an appropriate sensor (not shown) detects that the folding means 12 has reached the folding position, and the rotation of the drive motor 41 is stopped. Then, at this folding position, the reciprocating cylinders 34, 34 are operated in opposite directions to release the sandwiched state of the wide film 3. Further, the reciprocating cylinder 22 is operated to move the rod 23 in the same direction as the traveling direction of the wide film 3 (leftward in FIG. 4) to move the cylinder mount 30 and the first pinion 27 from the wide film 3. Separate. Then, in this state, the drive motor 4
1 is reversely rotated, and the bearing base 15 is moved toward the initial position. During the movement of the bearing base 15 to the initial position, at a position where the bearing base 15 does not face the wide film 3,
The reciprocating cylinder 22 is operated to move the rod 23 in the direction opposite to the traveling direction of the wide film 3, that is, in the right direction in FIG. Further, as shown in FIG. 7, when the electromagnetic brake 24 is released by detecting the above-mentioned disengaged position by an appropriate sensor 91b, the first pinion 27 fixed to the main shaft 19 and the first pinion provided on the frame 11 are released. The 1 rack 28 meshes with each other, the main shaft 19 makes a half rotation in the opposite direction, and the cylinder mount 30 is reversed to restore the initial state.

When one of the folding means 12 starts the returning operation to the initial state and at the same time the other folding means 12 is driven, in the same manner as described above, the opposite side in the longitudinal direction of the wide film 3, The left end in the figure can be folded.

In this way, as shown by the chain double-dashed line in FIG. 2, a wide film 3b is formed which is folded in three in the longitudinal direction, that is, is folded in three so as to be orthogonal to the folds of the sutra-folding. Then, by the lifting means 6, the central conveyor 4b
When the conveyor 4b is driven after being lowered to a predetermined position, the wide film 3b folded in three in the longitudinal direction is transferred onto the carry-out conveyor 7.

Therefore, according to the film folding apparatus 1 of the present embodiment, the wide film 3 subjected to the sutra-folding can be folded back by securely sandwiching the longitudinal end portion of the wide film 3. Unlike conventional products, it can be made into a rectangular shape with a small projected area, so it can be stored in box-shaped corrugated cardboard, etc., and can be handled in the same way as general products, as well as a special handling form in distribution and storage. The inconvenience of having to do this can be eliminated.

The first pinion 27 used in this embodiment is used.
It is possible to omit the first rack 28 and the first rack 28 and to make the reciprocating cylinder 22 an actuator for both reciprocating and rotating.

Further, the traveling direction of the wide film 3 traveling on the supply conveyor 2 may be either the short side or the long side of the wide film, and may be determined according to the design concept. Further, the arrangement order of the respective conveyors 4a, 4b, 4c connected to the supply conveyor 2 may be such that the respective conveyors 4a, 4b, 4c are arranged in order in the advancing direction of the wide fill 3, particularly in the present embodiment. It is not limited to.

Further, by providing the film folding apparatus 1 of the present embodiment at both ends of the conveyors 4a and 4c in the same direction as the direction orthogonal to the folding folds of the wide film 3, the wide film 3 is shortened. It can also be folded in the hand direction.

Further, by appropriately changing the number of folding means and the folding position, various folding forms can be obtained as shown in FIGS. 8 to 10. Furthermore, 1
When the diffracted wide film 3b is turned by 90 degrees by an appropriate direction changing means such as a turntable and then folded as shown by an arrow in FIG. 11, bidirectional folding can be performed in both vertical and horizontal directions. it can. Also, the supply conveyor 2
Rails 10 may be provided so as to surround the conveyors 4a, 4b, 4c except the side surfaces adjacent to the folding means 12 so that the folding means 12 can travel in the longitudinal direction and the lateral direction with respect to the wide film 3.

Further, a suitable push plate (not shown) is provided above the conveyor 4b so as to be freely accessible, and the wide film 3b after folding on the conveyor 4b is pressed to remove the air present in the folded portion. It is desirable to reduce the thickness by degassing.

FIG. 12 is a plan view of essential parts showing a second embodiment of the film folding device according to the present invention.

In this embodiment, the folding mechanism 9 by the sandwiching means 12 for holding the wide film 3 is not formed on the side surfaces of the conveyors 4a, 4b, 4c as in the first embodiment described above, and instead, the folding mechanism 9 is not provided. Between the conveyors 4a, 4b, 4c,
Arranging folding rolls 91a, 91b of an appropriate length, which are rotatable at the same or slightly lower position as the work surface, are arranged with their axial directions oriented in the same direction as the direction orthogonal to the folds of the wide film 3 in the sutra-folding. Along with the central conveyor 4b, a push plate 92 which is freely movable toward and away from the conveyor 4b by an appropriate lifting means (not shown) is provided.
The folding rolls 91a and 91b are made to perform a desired operation by the industrial robot 93 or the like, so that the wide film 3 is folded.

Next, the film folding device 94 of the present embodiment.
The operation will be described with reference to a to d of FIG. 13 and a to d of FIG.

First, the wide film 3 that has undergone sutra folding
Is traveled in the same manner as in the first embodiment described above, and is stopped on the conveyors 4a, 4b, 4c as shown in FIG.

Next, an appropriate push plate 92 located above the conveyor 4b is lowered onto the wide film 3 transferred onto the conveyor 4b by a desired elevating means such as a reciprocating actuator (not shown) to a predetermined position. Make contact with the pressing force of. In the present embodiment, the folding roll 91 on the right side in the drawing at the initial position arranged between the conveyors 4b and 4c.
As shown in FIG. 13B, b is raised to a desired position by an industrial robot 93 (not shown).

Next, the push plate 92 is raised to a desired position. Then, the folding roll 91b is lowered and pressed against the conveyor 4b, and is moved leftward in the drawing.
Then, as shown in FIG. 13C, the folding roll 91b folds the wide film 3 while rotating counterclockwise.

Next, the folding roll 91b is moved to the position d in FIG.
Move to the desired position as shown in.

Next, while gradually raising the folding roll 91b, as shown in FIG. 14a, the folding roll 91b is moved to the right in the figure. Then, the folding roll 91b is moved to a position above the initial position and then lowered to return to the initial position between the conveyors 4b and 4c. By the series of these operations, the right side (conveyor 4c side) portion of the wide film 3 in the drawing is folded.

Next, an appropriate push plate 92 located above the conveyor 4b is lowered onto the wide film 3 folded on the conveyor 4b by a desired elevating means such as a reciprocating actuator (not shown), and a predetermined amount. Abut with pressing force. In the present embodiment, the folding roll 91a on the left side in the drawing at the initial position arranged between the conveyors 4a and 4b.
Is raised to a desired position by an industrial robot 93 (not shown), as shown in FIG.

Next, the push plate 92 is raised to a desired position. Then, the folding roll 91a is lowered and pressed against the conveyor 4b, and moved rightward in the drawing.
Then, as shown in FIG. 14C, the folding roll 91b folds the wide film 3 while rotating clockwise. When the folding roll 91a is operated symmetrically with the folding roll 91b described above, the wide film 3 can be folded as shown in d of FIG.

As described above, according to the film folding device 94 of this embodiment, the wide film 3 on which the sutra-folding is performed is
The longitudinal direction of the wide film 3 is set to the folding rollers 91a, 9
1b can be surely supported and folded back, and it is possible to prevent the inconvenience that the wide film 3 is deformed during the folding work and the folds are skewed. In addition, unlike the conventional case, since it can be made into a rectangular shape with a small projected area, it can be stored in a box-shaped corrugated cardboard, etc., and can be handled in the same way as general products. The inconvenience of having to take a handling form can be eliminated.

The present invention is not limited to the above embodiment, but can be modified as necessary.

[0068]

As described above, according to the present invention, since the wide film that has been subjected to the warp-fold has a rectangular shape with a smaller projected area, it can be stored in a box-shaped corrugated cardboard or the like. In addition, in storage, it is possible to eliminate the inconvenience of having to take a special handling form, and to achieve an extremely excellent effect.

[Brief description of drawings]

FIG. 1 is a plan view showing a main part of an embodiment of a film folding device according to the present invention.

FIG. 2 is a front view showing a main part of the film folding device of the present invention.

FIG. 3 is a right side view showing a main part of the film folding device of the present invention.

FIG. 4 is an enlarged sectional view showing a main part of a folding mechanism.

5 is a left side view of FIG.

FIG. 6 is a view showing a main part of a warp-folding machine for a wide film that has undergone sutra-folding, which is applied to the film folding apparatus of the present invention.

FIG. 7 is a view for explaining the operation of the folding means of the film folding device of the present invention.

FIG. 8 is a diagram showing another example of a folded state.

FIG. 9 is a view similar to FIG.

FIG. 10 is a view similar to FIG.

FIG. 11 is a view similar to FIG.

FIG. 12 is a plan view of an essential part showing a second embodiment of the film folding device according to the present invention.

13A to 13D are explanatory views explaining the operation of the second embodiment.

14A to 14D are views similar to FIG.

[Explanation of symbols]

 1 Film Folding Device 3 Wide Film 3a Woven Film 4a, 4b, 4c Conveyor 9 Folding Mechanism 10 Rail 12 Folding Means 15 Bearing Stand 27 First Pinion 28 First Rack 30 Cylinder Mount 34 Reciprocating Moving cylinder 38 Film gripping member 41 Drive motor 45 Wheel 47 Second pinion 49 Second rack 91a, 91b Folding roll 93 Industrial robot 94 Film folding device

Front page continuation (72) Inventor Minami Niimoto 6-10-29 Tsunashima Higashi, Kohoku Ward, Yokohama City, Kanagawa Prefecture Tommy Machine Industry Co., Ltd. 10-29 Tommy Machine Industry Co., Ltd.

Claims (3)

[Claims] 1. A transfer mechanism for transferring a wide film folded in a warp, a position detecting means for detecting the position of the wide film transferred by the transfer and feed mechanism, and a fold of the wide film at least for the wide film. And a folding mechanism that folds the film in a direction orthogonal to the film folding apparatus. 2. The folding mechanism holds at least a part of the wide film and has a holding means that is movable at least in a direction orthogonal to a fold line of a sutra fold. The film folding device according to claim 1. 3. The folding mechanism according to claim 1, wherein the folding mechanism includes a folding roll that is rotatable and is movable at least in a direction orthogonal to a fold line of a sutra fold. Film folding device.