JP3217423B2 - Film folding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

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

[0003]

However, in the above-described conventional long cylindrical columnar shape of a wide film, pallet stacking generally used at the time of physical distribution cannot be adopted, and a special transport jig is used. There was a problem that required tools. Also, when storing in a warehouse, etc.,
There has been a problem that a storage form different from a general product must be applied, workability is inferior, and a lot of labor is required for management.

[0004] The present invention has been made in view of these points, and overcomes the above-described problems in the conventional art.
It is an object of the present invention to provide a film folding device capable of forming a wide film into a form suitable for distribution and storage.

[0005]

Means for Solving the Problems A film folding apparatus of the present invention described in claim 1 for achieving the above object, the thickness
A transfer mechanism for transferring the Ku sutra-folded wide film,
Position detecting means for detecting the position of the wide film transferred by the transfer feeding mechanism, and sandwiches at least a part of the wide film horizontally disposed ,
It is free to move at least in the direction parallel and perpendicular to the folds of the sutra folding, and grips a part of the wide film.
And clamping means for folding in the direction perpendicular to the folds of the folded sutras while increasing, and a push plate for degassing from folding unit, the wide film in a direction perpendicular to at least sutras folded folds And a folding mechanism.

According to a second aspect of the present invention, there is provided a film folding apparatus for detecting a position of the wide film transported by the transport mechanism, which transports a wide film which is thickly folded and folded. Position detection means, rotatable and freely movable in a direction parallel and perpendicular to at least the folds of the transversal fold of the wide film disposed horizontally, so as to be movable in the fold direction of the wide film.
A folding roll that folds in the direction perpendicular to the fold of the sentence fold while lifting the middle from below, and a wide film downward
And a folding mechanism that folds the wide film at least in a direction orthogonal to the folds of the folding process.

[0007]

[0008]

According to the film folding apparatus of the present invention, the wide film that has been thickly folded in the translatory manner is clamped by the clamping means included in the folding mechanism so that the film can be folded with respect to the folds of the translatory fold. It can be folded in the direction perpendicular to it and folded securely to form a square shape with a smaller projected area, so it can be packed with box-shaped cardboard etc., special handling form in logistics and storage Can be eliminated.

According to the film folding apparatus of the present invention, a wide film that has been thickly folded in a sentence can be formed by:
The folding roll included in the folding mechanism folds in the direction perpendicular to the fold of the sentence fold and folds while reliably preventing the fold from being deformed, and a square form with a smaller projected area Therefore, packaging with a box-shaped cardboard or the like can be performed, and the inconvenience of requiring a special handling form in distribution and storage can be eliminated.

[0010]

[0011]

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

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 part, and FIG. 2 is a front view showing a main part. 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 according to the present embodiment is connected to a supply conveyor 2 shown by a two-dot chain line in FIG. And
The film folding device 1 has a plurality of, in this embodiment, three or more.
The conveyors 4a, 4b, and 4c are arranged as a transfer mechanism that allows the wide film 3 on which the transliteration has been performed to be freely conveyed in the traveling direction indicated by the arrow A in the figure. Further, these conveyors a, 4b, 4c are provided in a direction orthogonal to the traveling direction of the wide film 3, and their upper surfaces constitute table-like work surfaces 5a, 5b, 5c. 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 at the center is As shown in FIG. 2, it can be moved up and down by a suitable lifting means 6 such as a lifter. Further, below the conveyor 4b arranged at the center in the figure, a desired unloading conveyor 7 for unloading is arranged downstream of the wide film 3 in the traveling direction, as shown in FIG. Then, these conveyors 4a, 4b, 4c are in a normal use state, and the working surfaces 5a,
5b and 5c have the same height. Further, these conveyors 4a, 4b and 4c are controlled and operated by a desired drive device (both not shown) by an appropriate control device.

As shown in FIGS. 1 and 3, each of the conveyors 4a, 4b, 4c as the transfer mechanism is provided.
At an appropriate position on the downstream side in the traveling direction of the wide film 3, the wide film 3 supplied from the supply conveyor 2 to each of the conveyors 4 a, 4 b, 4 c as the transfer mechanism
An optical switch 8 is disposed on an appropriate frame (not shown) as a position detecting means for detecting the position of. The position detecting means may be any as long as it can detect at least the position of the leading end of the wide film 3 in the traveling direction. For example, a contact-type sensor such as a limit switch, various optical sensors, or the like may be used. It is not limited to the embodiment. Further, the position where the position detecting means is installed can be changed according to the specification, and is not particularly limited to the present embodiment.

A folding mechanism 9 for folding the wide film 3 is provided near the end of the conveyor 4a, 4b, 4c on the downstream side in the traveling direction of the wide film 3. In this embodiment, the folding mechanism 9 folds the wide film 3 while holding the vicinity of the end of the wide film 3 in the traveling direction.

Further, the folding mechanism 9 will be described. As shown in FIG. 1, the conveyors 4a, 4b, 4c
The two rails 10, 10 are mounted on an appropriate frame 11 at an appropriate interval in close proximity to the downstream end of the wide film 3 in the traveling direction of the
a, 4b, 4c in parallel direction, that is, conveyors 4a, 4
b, 4c are provided in parallel with the direction perpendicular to the folds of the transversal fold of the wide film 3 transferred to the wide film 3c. At both ends of the rails 10, 10, folding means 12 of the wide film 3 is provided with the conveyors 4a, 4b, 4c.
It is mounted so that it can move freely in the parallel direction.

As shown in FIGS. 4 and 5, the folding means 12, 12 has a base 13 having a width slightly shorter than the interval between the rails 10, 10, and an upwardly extending part from the center of the base 13. The main body 16 is a bearing base 15 formed in a substantially convex shape as a whole by the extended standing portions 14.

The central portion of the upright portion 14 of the bearing base 15 has an appropriate size penetrated in a direction perpendicular to the rails 10 (a direction perpendicular to the folds of the wide film 3). A main through hole 17 is formed. The rails 1 are provided near both ends of the base 13 of the bearing base 15.
Two sub-through holes 18 each having an appropriate size and penetrating in a direction orthogonal to 0 are respectively formed.

As shown in FIG. 4, a main shaft 19 of an appropriate length is provided in the main through hole 17 at both ends thereof.
And is rotatably and slidably supported via an appropriate bearing 20a. A rod 23 of a suitable reciprocating cylinder 22 for moving the main shaft 19 in the axial direction is connected to an 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 fixed. A suitable electromagnetic brake 24 is fixed together with a brake plate 25 on the opposite side of the bearing base 15 where the reciprocating cylinder 22 is mounted, 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 desired fixing means 26 such as a sinking key. On the frame 11 below the first pinion 27, a first rack 28 of an appropriate length to be engaged with the first pinion 27 is arranged in parallel with the rail 10.

Further, a back surface 31 of a cylinder mount 30 is eccentrically fixed to a front end portion 29 of the main shaft 19 on the side facing the wide film 3. The cylinder mounting base 30 has a substantially inverted U-shaped cross section open toward the wide film 3, and in a normal state other than when the wide film 3 is bent, the two projecting flange portions 32, 32 are formed. They are arranged so as to face up and down in the vertical direction. The opening 33 formed by the protruding flanges 32, 32 faces the wide film 3 mounted on the conveyors 4a, 4b, 4c. Appropriate reciprocating cylinders 34, 34 are fixed to the outside of the protruding flanges 32, 32, respectively, and rod through holes 35, 35 formed at appropriate positions of the protruding flanges 32, 32. , Rods 36, 36 of the reciprocating cylinders 34, 34 are inserted in a loosely fitted state. The film gripping member 3 having an appropriate shape is attached to the tip portions 37, 37 of the rods 36, 36 of the reciprocating cylinders 34, 34.
8, 38 are fixed. This film gripping member 3
Appropriate film damage preventing members 39, 39, such as hard rubbers, are fixed in a desired shape to the surfaces of the wide films 3, 8 facing the wide film 3. The whole of them is a holding means for holding the wide film 3.

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

As shown in FIG. 4, an axle 44 of an appropriate length is provided in each of the sub-through holes 18 so that both ends thereof extend from the bearing base 15 so that an appropriate bearing 20 is provided.
It is rotatably mounted via b and 20b. The rails 1 are provided at both ends of each axle 44, 44.
Suitable wheels 45, 45 for traveling on 0, 10 are fixed respectively. Further, a second pulley 46 and a second pinion 47 are fixed to one axle 44 on the same side as the output shaft 42 of the motor 41 in order from inside to outside. A suitable belt 48 is wound around the second pulley 46 and the first pulley 43 fixed to the drive motor 41. By driving the drive motor 41, the axles 45, 45 rotate,
When the wheels 45 rotate, the bearing base 15 is
It runs on 0,10. 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 rails 10.

The film folding device 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 sentence folding is supplied to a sheet folding machine 50 as shown in FIG. 6, the sheet-like wide film 3a is spread by a dancer roll 52 provided on the upper side of a frame 51 formed in a suitable substantially rectangular shape in the traveling direction. Arrow B from left to right
The vehicle is driven in the direction indicated by. Then, a pair of intermediate rolls 53 provided at the center of the beam at the upper end of the frame 51
a and 53b allow the sheet to be sent downward in the figure as indicated by arrow C. Then, the intermediate rolls 53a, 53b
A suitable pulley 55 is attached to the intermediate roll 53a on the left side in FIG.
Is fixed.

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 mounted on the drive motor 54. A desired belt 58 is wound around a pulley 56 provided on the powder clutch 57 and a pulley 55 provided on the intermediate roll 53a.

A swing mechanism 59 for the sheet-like wide film 3a is provided below the upper beam 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 rotation shaft 62 is pivotally attached to the support base 60, and an intermediate pulley 61 is rotatably mounted on the rotation shaft 62, and a swing frame 63 is fixed to the rotation shaft 62. 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. The pair of pinch rollers 64a, 64b
Are in contact with a desired contact force so that the sheet-like wide film 3a can be held therebetween. Further, appropriate tensioners 65, 65 are provided on the left and right of the intermediate 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 tensioners 65 and 6 are attached to the intermediate pulley 61 and a pulley (not shown) fixed to the pinch roller 64a.
5, a desired belt 67 is wound. Also,
At an appropriate position of the swing frame 63, a gear motor 68 is disposed with its rotating shaft 69 directed downward. A male screw is formed on the outer periphery of the rotating shaft 69.

An appropriate support member 71 is fixed to the left side of the frame 51. A support shaft 72 is pivotally mounted on the support member 71, and a pulley 74 is mounted on the support shaft 72.
Are rotatably mounted, and the pinion 73 is fixed. A rack is mounted above the pinion in a meshing state, and the rack is swingable. Further, a female screw is provided at one end of the rack 70, and the rotation shaft 6 of the gear motor 68 is provided.
9 is screwed with a male screw.

Below the swing mechanism 59,
A conveyor 75 fixed to a support frame (not shown) is provided below the swing mechanism 59 at an appropriate interval in a predetermined unloading direction. At both ends of the conveyor 75, film holding arms 76 having appropriate shapes are provided. The film holding arms 76 are fixed to support shafts 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 a desired stopper member (not shown) is engaged with the protrusions 79, 79. A roller 80 is provided at an appropriate position of the film holding arm 76.
Is provided. At an appropriate position below the roller 80, an eccentric cam 81 is fixedly mounted on a rotation support shaft 82 provided on an appropriate frame (not shown). Further, a pulley 83 is fixed to the rotation support shafts 82 to which the eccentric cam 81 is fixed. Then, pulleys 83 provided on the pivot shafts 82, 82,
A suitable belt 84 is wound between 83. The pulley 83 on the left side in the figure is a two-stage pulley,
The output of an appropriate drive motor 85 disposed near the lower end of the frame 51 is connected to a relay pulley 86 disposed at the lower left in FIG.
, The rotational driving force is transmitted by desired belts 88a, 88b to which tension is applied by appropriate tensioners 87, 87.

The output of the drive motor 85 is transmitted via a relay pulley 86 to a pulley 74 for driving the rack 70 by a belt 89. In addition, a known film cutting mechanism (not shown) is provided at an appropriate position in the running direction of the sheet-like wide film 3a so as to cut the sheet-like wide film 3a to 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 so that it can be conveyed in the direction indicated by the arrow D in the figure. Further, the transliteration folding machine 50 is controlled and operated by an appropriate control device (not shown).

The transit folding machine 50 and the film folding device 1 are connected by an appropriate transport means, and the transit folding and folding of the sheet-like wide film 3a are continuously performed to reduce the intermediate stock. Although desirable in the sense, the translucent folding and folding of the sheet-like wide film 3a can be performed separately. The connection relationship between the transliteration folding machine 50 and the film folding device 1 may be determined based on the installation space, economy, design concept, and the like.

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

First, the operation of the transflector 50 of this embodiment will be described.

In this embodiment, the sheet-like wide film 3a is formed by a dancer roll 52 and intermediate rolls 53a, 5a.
3b and pinch rollers 64a and 64b. In this state, when a control device (not shown) is operated, a control command is issued from the control device to a desired device, and the transliteration 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 is rotated via the relay pulley 86 to rotate the rack 7.
0 moves. The rack 70 is moved right and left by rotating the drive motor 85 forward and backward. The movement of the rack 70 in the left-right direction causes the rack 70 to move.
A swing motor 63, to which a gear motor 68 screwed to one end is fixed, is swung with the rotation shaft 62 as a fulcrum as shown by the dashed line arrow E in FIG. You will be swinging.

By driving the gear motor 68 fixed to the swing frame 63, the tip of the rack 70 screwed to the rotating shaft 69 of the gear motor 68 can be moved up and down. Thereby, the rack 7
By changing the connection point between the rack 70 and the rotating shaft 69 of the gear motor 68 in a state where the moving distance of 0 is fixed, the swing width of the swing mechanism 59 can be changed. Then, by making the swing width of the swing mechanism 59 variable, the left and right fold positions in the drawing of the sheet-like wide film 3a can always be the same position.

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

When the sheet-like wide film 3a is folded at a desired position on the conveyor 75, the tip of one of the film pressing arms 76 is placed on the conveyor 75, as in the case of a film pressing arm 76 shown on the right side in the figure. , And the sheet-like wide film 3a is sandwiched between the film holding arm 76 and the conveyor 75 to prevent the sheet-like wide film 3a from being dragged in the direction after folding. When the sheet-like wide film 3a reaches the folded position on the left side in the figure, the tip of the other film holding arm 76 shown on the left side in the figure falls on the conveyor 75, and the film on the right side in the figure The holding arm 76 is configured to jump up. The vertical movement of the film holding 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
The rotation 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 holding arm 76 in contact with the outer periphery of the eccentric cam 81 rotates the eccentric cam 81. Move up and down,
The film holding arm 76 can also be moved up and down around the support shaft 77.

In this embodiment, the lowering of the film holding arm 76 utilizes a natural fall. Further, the eccentric cams 81, 81 provided on the left and right in the figure are arranged at vertically symmetric positions with respect to each other.

As described above, the eccentric cams 8 provided on the left and right in the figure
By arranging the upper and lower members 1 and 81 at symmetrical positions, the left and right film pressing arms 76 and 76 in the figure alternately move up and down to sandwich the folded portion of the sheet-like wide film 3a. Then, a sheet-shaped wide film 3 having a desired length is obtained by an appropriate sensor (not shown).
After a is fed out from the pinch rollers 64a and 64b, the sheet-like wide film 3a is cut at an appropriate position, and is subjected to transliteration. Then, the film holding arms 76, 76 are folded over the wide film 3
When the conveyor 75 and the unloading conveyor 90 are operated in synchronization with each other, the wide film 3 on which the sentence folding has been performed can be transferred onto the unloading conveyor 79.

Therefore, according to the translatory folding machine 50 of this embodiment, the sheet-like wide film 3a fed from the pinch rollers 64a, 64b has a desired width on the conveyor 75 along the traverse motion in the figure. While gradually descending while moving to the left and right, the folded portion can be reliably held by the film holding arms 76, 76, so that the transliteration can be reliably performed.

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

FIG. 7 is an explanatory diagram 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, 4c in the direction of travel indicated by arrow A in FIG. The leading end in the direction is detected by the optical sensor shown in FIG. 3, and each of the conveyors 2, 4a, 4b, and 4c is 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 traveling direction are extended by a desired length before and after the traveling direction of the conveyors 4a, 4b, 4c.

Next, when the drive motor 41 provided above each bearing stand 15 at 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 each of the folding means 12 and 12 on the rail 10 to a predetermined starting position toward the center in the longitudinal direction.
At this time, the opposing surfaces of the film gripping members 38, 38 are separated from each other so that the longitudinal end of the wide film 3 is viewed from above and below. Then, at the predetermined position, the first pinion 27 fixed to the main shaft 19 is engaged with the first rack 28.

Next, when the reciprocating cylinders 34, 34 are driven to bring the film gripping members 38, 38 close to each other, the film damage preventing members 39, 39 provided on the surfaces of the film gripping members 38, 38 are moved. The wide film 3 between
Can be clamped.

Next, the bearing stand 15 of the one folding means 12
When the drive motor 41 provided above is further operated, the main shaft 19 travels on the rail 10 while rotating by the engagement of the first pinion 27 and the first rack 28. Then, when the first pinion 27 rotates a half turn, the position of the reciprocating cylinders 34, 34 provided on the respective protruding flange portions 32, 32 of the cylinder mount 30 fixed eccentrically to the tip portion 29 of the main shaft 19 is increased. Can be flipped upside down. This means that one end of the wide film 3 in the longitudinal direction is picked up and folded as shown by a two-dot chain line in FIG. The length of the first rack 28 is set to a length at which the first pinion 27 makes a half turn from the starting position. Therefore, when the first pinion 27 rotates a half turn or more, it comes off the first rack. Further, the position where the first pinion 27 is detached from the first rack is detected by a suitable sensor 91a shown in FIG. The rotation due to the inertia of the nineteenth can be forcibly stopped. In addition, other known anti-rotation means may be applied instead of the electromagnetic brake 24.
It is not limited to this embodiment.

In this disengaged position, the second pinion 47 fixed to the axle 44 is engaged with the second rack 49. By the operation of the drive motor 41, the folding means 12 can run on the rail 10 toward the center in the longitudinal direction in a state where one end of the wide film 3 is inverted, and can fold one end of the wide film 3.
Then, when one end of the wide film 3 is folded to a desired folding position, the arrival of the folding means 12 at the folding position is detected by an appropriate sensor (not shown), and the rotation of the drive motor 41 is stopped. Then, at this folding position, the reciprocating cylinders 34, 34 are operated in the reverse direction to release the sandwiched state of the wide film 3. Further, the reciprocating cylinder 22 is operated, and the rod 23 is operated in the same direction as the traveling direction of the wide film 3 (the left direction 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 rotated in the reverse direction to move the bearing base 15 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, the release position is detected by an appropriate sensor 91b, and when the electromagnetic brake 24 is released, the first pinion 27 fixed to the main shaft 19 and the first pinion 27 The first rack 28 meshes with the main shaft 19 to make a half turn in the reverse direction, and the cylinder mount 30 is inverted to return to the initial state.

When one of the folding means 12 starts the returning operation to the initial state and drives the other folding means 12 at the same time, 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 a two-dot chain line in FIG. 2, a wide film 3b is formed which is folded in three in the longitudinal direction, that is, three times perpendicular to the folds of the sentence folding. Then, the central conveyor 4b is moved by the lifting / lowering means 6.
When the conveyor 4b is driven after moving down to a predetermined position, the wide film 3b whose longitudinal direction is folded in three 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 transliteration can be folded by securely holding the longitudinal end of the wide film 3. Unlike conventional, it can be made into a square shape with a small projected area, so it can be stored in box-shaped cardboard etc., it can be handled like general products, and special handling form in logistics and storage Can be eliminated.

The first pinion 27 used in this embodiment is
And the first rack 28 can be omitted, and various changes can be made, such as using the reciprocating cylinder 22 as a reciprocating and rotating actuator.

The traveling direction of the wide film 3 traveling on the supply conveyor 2 may be either short or long of the wide film, and may be determined according to the design concept. The arrangement order of the conveyors 4a, 4b, and 4c connected to the supply conveyor 2 may be such that the conveyors 4a, 4b, and 4c are arranged in the traveling direction of the wide fill 3 in particular. However, the present invention is not limited to this.

The wide film 3 can be shortened by providing the film folding apparatus 1 of this embodiment at both ends of the wide films 3 of the conveyors 4a and 4c in the same direction as the direction perpendicular to the folding line of the transversal fold. It can also be folded in the hand direction.

By appropriately changing the number of folding means and the folding position, various folding forms can be obtained as shown in FIGS. In addition, 1
After the folded wide film 3b is turned 90 degrees by a suitable direction changing means such as a turntable and then further folded as shown by arrows in FIG. 11, bidirectional folding in both vertical and horizontal directions can be performed. it can. In addition, supply conveyor 2
The rails 10 may be provided so as to surround the conveyors 4a, 4b, 4c excluding the side surfaces adjacent to the wide film 3, so that the folding means 12 can travel in the vertical direction and the horizontal direction with respect to the wide film 3.

An appropriate push plate (not shown) is provided above and below the conveyer 4b so as to be able to move freely in and out of the way. The folded wide film 3b on the conveyer 4b is pressed to release air interposed in the folded portion. It is desirable to reduce the thickness by degassing.

FIG. 12 is a plan view of a main part showing a second embodiment of the film folding apparatus according to the present invention.

In this embodiment, the folding mechanism 9 by the holding means 12 for the wide film 3 is not formed on the side surfaces of the conveyors 4a, 4b, 4c as in the first embodiment described above. Between the conveyors 4a, 4b, 4c,
Folding rolls 91a, 91b of an appropriate length 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 folding folds of the wide film 3 in the longitudinal direction. A push plate 92 is provided above the central conveyor 4b so as to be freely movable toward and away from the conveyor 4b by a suitable lifting means (not shown).
The folding rolls 91a and 91b are operated as desired by the industrial robot 93 or the like, so that the wide film 3 is folded.

Next, the film folding device 94 of this embodiment
13 will be described with reference to FIGS. 13A to 13D and 14A to 14D.

First, the wide film 3 which has been subjected to the folding process
Is driven in the same manner as in the first embodiment, and stopped on the conveyors 4a, 4b and 4c as shown in FIG. 13A.

Next, an appropriate push plate 92 positioned above the conveyor 4b is lowered onto the wide film 3 transferred onto the conveyor 4b by a desired lifting / lowering means such as a reciprocating actuator (not shown) so as to be moved to a predetermined position. Contact with the pressing force of. In the present embodiment, the folding roll 91 on the right side in the figure at the initial position disposed between the conveyors 4b and 4c.
b is raised to a desired position by an unshown industrial robot 93 as shown in FIG.

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 to the left in the figure.
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 shown in FIG.
Is moved to a desired position as shown in FIG.

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

Next, an appropriate push plate 92 positioned 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) so as to be moved to a predetermined position. Contact with pressing force. In this embodiment, the folding roll 91a on the left side in the figure at the initial position disposed between the conveyors 4a and 4b.
Is raised by a not-shown industrial robot 93 to a desired position 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 to be 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 above-described folding roll 91b, the wide film 3 can be folded as shown in FIG.

As described above, according to the film folding device 94 of the present embodiment, the wide film 3 subjected to the transliteration is
Folding rollers 91a, 9
1b can be reliably supported and folded, and the problem that the wide film 3 is deformed during the folding work and the folds are skewed can be prevented. In addition, unlike the conventional case, it can be formed in a rectangular shape with a small projected area, so that it can be stored in a box-shaped cardboard or the like, and can be handled in the same manner as a general product, and special in logistics and storage. The inconvenience of having to handle is eliminated.

It should be noted that the present invention is not limited to the above-described embodiment, and can be modified as needed.

[0068]

As described above, according to the present invention, since the wide film which has been subjected to the transliteration is formed into a rectangular shape having a smaller projected area, it can be stored in a box-shaped cardboard or the like. In addition, in storage, it is possible to achieve an extremely excellent effect that the inconvenience of requiring a special handling mode can be eliminated.

[Brief description of the drawings]

FIG. 1 is a plan view showing a main part of an embodiment of a film folding device of 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 the folding mechanism.

FIG. 5 is a left side view of FIG. 4;

FIG. 6 is a diagram showing a main part of a translatory folding machine for a transversally folded wide film applied to the film folding apparatus of the present invention.

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

FIG. 8 is a view showing another example of the folded state.

FIG. 9 is a view similar to FIG. 8;

FIG. 10 is a view similar to FIG. 8;

FIG. 11 is a view similar to FIG. 8;

FIG. 12 is a plan view of a main part showing a second embodiment of the film folding apparatus according to the present invention.

FIGS. 13A to 13D are explanatory diagrams illustrating the operation of the second embodiment.

FIG. 14 is a view similar to FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Film folding device 3 Wide film which has been subjected to sentence folding 3a Wide film 4a, 4b, 4c Conveyor 9 Folding mechanism 10 Rail 12 Folding means 15 Bearing stand 27 1st pinion 28 1st rack 30 Cylinder mount 34 Reciprocation Dynamic cylinder 38 Film holding member 41 Drive motor 45 Wheel 47 Second pinion 49 Second rack 91a, 91b Folding roll 93 Industrial robot 94 Film folding device

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Minami Niimoto 6-10-29 Tsunashima Higashi, Kohoku-ku, Yokohama, Kanagawa Prefecture Inside Tommy Machinery Co., Ltd. (72) Mizuho Mukoyoshi Tsunashima, Kohoku-ku, Yokohama, Kanagawa East 6-10-29 Tommy Machine Industry Co., Ltd. (56) References JP-A-50-6477 (JP, A) JP-A-57-155148 (JP, U) JP-A-51-144596 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B65H 45/12

Claims (2)

(57) [Claims] And 1. A transfer mechanism for transferring the thickened sutra-folded wider film, position detecting means for detecting a position of the wide film transferred by the transfer sheet mechanism, of the wide film disposed horizontally with sandwiching at least a portion, it is movable in a direction parallel and perpendicular to the folds of the folded least sutras, wide
A folding mechanism for folding a wide film at least in a direction perpendicular to the fold of the transliteration, comprising a holding means for folding up a part of the film in a direction perpendicular to the fold of the transliteration; And a pressing plate for deaerating from the folded portion . 2. A transport mechanism for transporting a wide film which has been thickly folded, a position detecting means for detecting a position of the wide film transported by the transport mechanism, and a rotatable and horizontally disposed. At least in the direction parallel to and orthogonal to the folds of the wide fold of the wide film.
A folding mechanism that folds a wide film at least in a direction orthogonal to the folds of the sentence fold, comprising a folding roll that folds in the direction orthogonal to the fold of the sentence fold while lifting the middle of the direction from below. And a vertically movable push plate for pressing the wide film downward .