JP2004244166A - Folding device and driving device of soft plastic film - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a folding device capable of preliminarily delivering a straight line cut piece of a soft plastic film for agriculture by holding and inserting the cut piece into the tip of a narrowing device without extremely curving the cut end and simultaneously delivering films at a concentric circular position by the same length up to an end position without changing a speed. <P>SOLUTION: In this folding device, the film is held and freely advanced at the position of an inlet 10 of each hold belt device 6 in the narrowing device, and preliminary delivery from the end of the hold belt device up to a substantially concentric circular position is freely performed. The device is constituted to stepwisely and freely perform the delivery so that the film held by all synchronized hold devices may be truly delivered. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
[Industrial applications]
The present invention relates to an apparatus for folding a soft plastic film such as vinyl, which constitutes an agricultural plant growing house commonly called a greenhouse.
[0002]
[Prior art]
In order to assemble a vinyl house for agriculture, usually, a pillar, a crosspiece, etc. made of metal pipes and the like are assembled on the ground to form a framework, and on the other hand, rolled in a length direction or a bellows is formed at irregular intervals. Put the transparent or translucent soft plastic film folded in front and back of the frame, pull this end up on the frame, pull it back from both sides by human power, and expand it into a tunnel, so that it is required to be symmetrical. Generally, the position is fixed.
[0003]
However, this agricultural film is usually 4m to 10m in width and 10m to 100m in length (weight is 7m, 50m in length and about 35kg). Therefore, it is necessary to pull up the framework and pull it back. There is a drawback in that it is inefficient because, for example, a day without wind is selected, and usually three or four people work together to perform heavy labor, and there is a risk of fraying and the like, making efficient work impossible.
[0004]
The inventor of the present invention disclosed in Japanese Patent No. 2969558, a wrapping device that folds a wide and long soft plastic film in a bellows shape while folding it at substantially equal intervals to the left and right from a substantially center in the width direction. A pair of left and right pinch roller devices that are arranged continuously at the end and press the soft plastic film in a bellows-like wrapping state, a direction change device that corrects the folded film in a predetermined direction, and a wrapping device The inventor has invented a folding device in which the front end of the sandwiching belt device is located substantially concentrically from the end, but the cut end of the soft plastic film is formed in a straight line perpendicular to the length direction. If the end is bent extremely and forced to the tip (pinching position) of the pinching belt device, the wrinkles may be too large, and the pinching of the pinching device may not be performed smoothly. There is a possibility that the whole width will gradually come to the center part gradually, and it is mechanically necessary to send the same length to the end position at the same time by changing the speed of the `` substantially '' concentric position It was difficult and required advanced technology.
[0005]
[Problems to be solved by the invention]
Therefore, the present invention provides a preliminary feeding by inserting a straight cut end of a soft plastic film for agriculture into the tip (entrance position) of a drawer without excessively curving the cut end, and performing a pre-delivery. The same length can be simultaneously fed to the end position without changing, and even during the feeding operation, the same length can be simultaneously sent to the end position smoothly without the overall width gradually approaching the center portion. An object of the present invention is to provide a folding device and a direction changing device in the folding device that can be securely turned over.
[0006]
[Means for Solving the Problems]
The present invention relates to a wrapping device that folds a wide and long soft plastic film in a bellows shape while folding the film in the longitudinal direction at substantially equal intervals to the left and right from substantially the center in the width direction, and a continuous wrapping device at the end of the wrapping device. And a pair of left and right pinch roller devices for pressing and sending the film in a bellows-like state, and a direction changing device for correcting the film folded in a bellows shape in a predetermined direction. The width shifting device includes a plurality of sandwiching belt devices that are arranged so as to be sequentially narrowed in the feed direction at substantially equal intervals to the left and right, and feeds the film while sandwiching the film, and at a front position slightly away from the tip of the sandwiching belt device. It consists of a guide bar stretched around and a deployment bar that turns the film by being positioned below the sandwiching belt device, and the sandwiching belt device has surfaces of upper and lower sandwiching belts that are synchronized with each other and overlaps each other. The film can be freely sandwiched between the lower sandwiching belts, and the length from the end to the entrance and the end of each sandwiching belt device is the concentric position from the end, and the extension line of the sandwiching belt device at both ends. And a straight line at the base of an isosceles triangle with the tangent at the approximate end position of the sandwiching belt at the center position, so that it is located at a curved position passing through the middle, and the film is placed at the entrance position of each sandwiching belt device. In addition to being able to pinch and penetrate freely, preliminary feeding from the end of the pinching belt device to a substantially concentric position is allowed freely, and after this preliminary feeding, the film pinched by the synchronous pinching belt device is fully fed. The direction change device is located below the pinch roller device and rotates in the tilting direction, and is inclined upward with respect to the feed direction, and is provided with a hanging portion of the film folded on the surface. Tactile surface folded sequentially by making it from a disc made of a large corrugated accordance sent, 且 in which folded alternately in the direction perpendicular to the feed direction to that this folded.
[0007]
The present invention will be described with reference to the illustrated embodiment. A wide and long flexible plastic film 1 made of vinyl, polyethylene, or the like (which may be a spliced wide film, usually having a width of about 4 to 10 m and a length of about 10 to 10 m) is used. And a width adjuster 2 that folds the bellows in a bellows-like manner while folding in the longitudinal direction at substantially equal intervals (approximately 100 cm) to the left and right from the approximate center (although some deviation is also possible) in the width direction. A pair of left and right pinch roller devices 3, which are arranged continuously at the ends of the film 2 and press the film 1 from the left and right to send it out, and a direction changing device 4 for correcting the film 1 folded in a bellows shape in a predetermined direction. In the folding device main body 5, the width shifting device 2 is arranged so as to become narrower left and right at substantially equal intervals toward the end (in the feed direction), and a plurality of nips for feeding while holding the film 1. , A guide bar 7 stretched to a front position slightly away from the tip of the clamping belt devices 6, 6,..., And a film 1 positioned below the clamping belt devices 6, 6,. And a development bar 8 that turns
[0008]
The surfaces of the upper and lower sandwiching belts 9, 9 which are synchronized with each other are overlapped with each other, so that the film 1 can be freely sandwiched between the upper and lower sandwiching belts 9, 9. The length between the entrance 10 and the end 11 of the wearing belts 9 and 9 is substantially concentric position 12 from the gathering point of the end 11, the extension lines 13 and 13 of the sandwiching belt devices 6 and 6 at both ends, and the center position. And a curved position 15 which passes through the middle between a straight line position 14 on the base of an isosceles triangle connected by a straight line having a tangent to the substantially end position of the holding belt 9.
[0009]
The soft plastic film 1 is held at the entrance 10 of each of the sandwiching belts 9, 9 in each of the sandwiching belt devices 6, 6, and the first driving motor 21 is slightly driven to sandwich and inject the film. After the entrapment and intrusion, the first drive motor 21 set to have a different feed speed is driven to freely perform the preliminary feed to the substantially concentric position 12.
[0010]
After the preliminary feeding, the first drive motor 21 which is set so as to be entirely synchronized is driven, and the film 1 clamped by the clamping belts 9, 9 is fully fed. That is, the sheet is sent in a stepwise manner, namely, sandwiching intrusion sending, preliminary sending, and main sending.
[0011]
The guide bar 7 is covered with a pipe on the surface so that the film 1 in contact therewith is slippery, and the unfolding bar 8 is located below the clamping belt devices 6, 6,. The film 1 at the front position is manually suspended from the inside in a state where the developing bar 8 is moved forward by the handle 17, and the developing bar is moved at the time of the feeding operation. 8 to maintain the tensioned state, and a disk (not shown) having a diameter larger than the diameter of the deployment bar 8 is fixedly or rotatably fixed in place at the development bar 8. The rolled film is hardly moved laterally.
[0012]
The direction changing device 4 is folded under the pinch roller device 3, rotates in a direction (counterclockwise in the figure) to fold down the hanging portion, and is inclined upward in the feeding direction and folded on the surface. The hanging portion of the disk 1 is made up of a disk 18 having a large contact surface by successively touching the surface. The disk 18 is rotated and folded in the same direction as the disk 18 at a position above the disk 18 in the feed direction and parallel to the feed direction. The pinch roller device 3 sandwiches only the upper part of the folded film 1, and the hanging part gradually touches the disk 18 by the pinch roller device 3. In the upper half position of the disk 18, it is fed forward while lying down and falls down, and the small disk 19 comes to a completely lying down state, and the folding bar 20 which moves the film lying down down and forwards and backwards is used. To Vignetting further folding at right angles to that folded like bellows, housed in the folding case 30 carries to the work site with its each case or packaging. In the figure, reference numeral 26 denotes a cutter.
[0013]
Reference numerals 21 and 21 denote first motors for driving the holding belts 6 and 6, 22 a second motor for driving the pinch roller device 4, 23 a third motor for driving the large disk 18, and 24 for driving the small disk 19. A fourth drive motor, 25 is a fifth drive motor for driving the cutter 26, and 28 is a sixth drive motor, which protrudes a little to the forward position of the small disk 19 and ensures the folded film 1 flowing sideways. Then, the auxiliary delivery roller 27 that guides the folding bar 20 is driven. 29 is a frame.
[0014]
The direction changing device 4 may be a plate-shaped one, an induction plate-shaped one processed so that the hanging part of the folded film 1 is turned over, or another method.
[0015]
[Action]
The present invention is as described above. First, the handle 17 is tilted backward, the deployment bar 8 is extended forward, the film 1 is suspended from the inside, the handle 17 is tilted forward, the film 1 is stretched, and guided. A piece of the film 1 is manually guided from the outside of the bar 7 to the entrance 10 of each of the sandwiching belt devices 6, 6, and the first drive motor 21 is slightly driven by a switch (not shown) to sandwich the leading end of the film 1 to enter. .
[0016]
After the cut ends of the film 1 are inserted into the entrances 10 of all the sandwiching belt devices 6 and 6, the preliminary feeding is performed. This preliminary feeding is performed by the first driving motors 21 and 21 in which the feeding speed is gradually increased in the sandwiching belt devices 6, 6 in the direction of the center and both ends, that is, the driving motor of the sandwiching belt device 6 in the center. The drive motor 21 is hardly driven, and is sent to the concentric position 12 by the first drive motors 21 and 21 which are set so that the drive motors 21 at both end positions are driven more.
[0017]
When the cut end of the film 1 reaches the concentric position 12, all the first drive motors 21 are synchronously synchronized, and are squeezed together in a bellows shape and sent out to the end position, and are sent to the pinch roller device 3 in the squeezed state. Then, the squeezed upper portion is sent out while being pinched by the pinch roller device 3.
[0018]
By the pinch roller device 3, only the upper part of the folded film 1 is sandwiched, the hanging part touches the first half of the disk 18 and lays down in the rotating direction, and in the latter part of the disk, most of the hanging is on the surface of the disk. The film 1 is fed out while being laid down by touching, and is further completely laid down by the small disk 19, and the laid down film 1 is hung on the folding bar 20 which moves back and forth along the auxiliary feeding roller 27. The folded and folded bellows shape is further folded at right angles, stored in the folding case 30, and transported to the work site together with the case or packed. If necessary, it is cut by the cutter 26 to a predetermined length.
[0019]
The small disk 19 of the direction changing device 4 is not necessary in some cases. That is, the sheet may be completely laid down by the disk 18 and sent to the auxiliary sending roller 27 as it is.
[0020]
【effect】
As described above, the present invention provides a wrapping device that folds a wide and long soft plastic film in a bellows shape while folding the film in the longitudinal direction at substantially equal intervals to the left and right from substantially the center in the width direction. A pair of left and right pinch roller devices that are continuously arranged at the end of the device and press and send the film in a bellows-like wrapping state, and a direction changing device that corrects the film folded in a bellows shape in a predetermined direction. In the folding device main body, the width shifting device includes a plurality of sandwiching belt devices that are arranged so as to be sequentially narrowed in the feed direction at substantially equal intervals on the left and right, and that sends out the film while sandwiching the film. It consists of a guide bar stretched to a distant front position and a development bar positioned below the sandwiching belt device to turn the film, and the sandwiching belt device is configured such that the surfaces of the upper and lower sandwiching belts that are synchronized are overlapped. The film can be sandwiched between the upper and lower clamping belts, and the length of each of the clamping belt devices from the entrance to the terminal is concentric with the terminal and the clamping belt on both ends. It is installed so that it becomes a curved position passing through the middle between the extension line of the device and the straight line position of the base of the isosceles triangle with the tangent at the approximate tip position of the clamping belt at the center position, and the entrance of each clamping belt device In addition to allowing the film to be inserted and inserted freely into the position, the preliminary feeding from the end of the sandwiching belt device to the substantially concentric position is also free, and after this preliminary sending, the film sandwiched by all the sandwiching belt devices that are synchronized As it can be sent out step by step, it can be inserted into the tip (entrance position) of the drawer without bending the linear cut of the soft plastic film for agriculture extremely. Smooth feeding can be performed in three stages, such as by feeding, and even during feeding operation, it can be smoothly folded without being stretched by the deployment bar so that the entire width is gradually shifted to the center, and concentrically positioned It is relatively easy to mechanically feed the same length simultaneously to the end position without changing the speed, and it can be provided at low cost.
[0021]
It consists of a disk that rotates under the pinch roller device and rotates in the tilting direction, and is inclined upward with respect to the feed direction, and gradually becomes larger as the contact surface of the hanging part of the folded film is fed to the surface. Since it is equipped with a direction change device that turns the folded film sideways, it can be folded down in a bellows shape, it can be folded easily back and forth and can be sent out smoothly, and as a whole compact folding, Transportation and deployment work can be done easily.
[Brief description of the drawings]
FIG. 1 is an explanatory plan view of a folding device according to the present invention.
FIG. 2 is an explanatory side view of the apparatus. FIG. 3 is a schematic view of the entire apparatus.
DESCRIPTION OF SYMBOLS 1 ... Soft plastic film 2 ... Closing device 3 ... Pinch roller device 4 ... Direction changing device 5 ... Folding device main body 6, 6 ... Clamping belt device 7 ... Guide bar 8 ... Deployment bar 9, 9 ... Clamping belt 10 … Entrance 11… end 12… concentric position 13… extension line 14… straight line position 15… bending position 16… weight 17… handle 18… disk 20… folding bar

Claims (2)

A wide and long soft plastic film that is folded in the bellows shape while folding it in the longitudinal direction at equal intervals to the left and right from the approximate center of the width direction, and a continuous arrangement at the end of the width adjuster A folding device main body comprising a pair of left and right pinch roller devices for pressing and sending the film in a bellows-like state and a direction changing device for correcting the film folded in a bellows shape in a predetermined direction; Is a plurality of clamping belt devices which are arranged so that they are sequentially narrowed in the feed direction at substantially equal intervals on the left and right, and which feeds while sandwiching the film, and a guide which is stretched around a front position slightly away from the tip of the clamping belt device. A bar and a deployment bar that turns the film by being positioned below the sandwiching belt device. The sandwiching belt device has the upper and lower sandwiching belts whose surfaces are synchronized with each other. In addition to allowing the film to be sandwiched between the belts, the length of each sandwiching belt device to the entrance and the end is the concentric position from the end, the extension line of the sandwiching belt device at both ends, and the center position. It is installed so that it becomes a curved position passing through the middle with the linear position of the base of the isosceles triangle with the tangent at the approximate tip position of the sandwiching belt, and the film can be sandwiched and penetrated into the entrance position of each sandwiching belt device. At the same time, the preliminary feeding from the end of the clamping belt device to the substantially concentric position can be freely performed, and after this preliminary feeding, the film clamped by the synchronous clamping belt devices is fully fed in a stepwise manner. A flexible plastic film folding device that can be sent out freely. It consists of a disk that rotates in the tilting direction under the pinch roller device and gradually increases as the contact surface of the hanging part of the film folded upward on the surface and fed to the feeding direction is sent, A flexible plastic film folding device equipped with a direction changing device for turning over a folded film.

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