JPH04354761A - Squeezing folder machine for agricultural and fishery film - Google Patents

Abstract

PURPOSE:To fold a film by squeeze folding it in the width direction by a squeeze supplying mechanism, pushing the two film sides across the thickness alternately using two folding guides each time the folding length is supplied, and displacing zigzag to the two sides of film across the thickness. CONSTITUTION:A wide film F is squeeze folded by a squeeze supplying mechanism 2 zigzagged in the width direction and then supplied to a folding mechanism 3. This folding mechanism 3 is composed of two folding guide members 31, 32 coupled by a link mechanism 30 and is hung at a frame 10. These guide members 31, 32 push the two sides of film across its thickness each time the folding length is supplied so that the supply locus is displayed zigzag to the two sides of film across the thickness, and the film F is placed on a table 4 in the folded condition in the form of bellows. This folding motion is generated by driving the link mechanism 30, and the table 4 is elevated and sunk so that the spacing between the uppermost layer of folded film upon the table 4 and the guide members 31, 32 is constant always. The folded film F is sent to compressing mechanism 6 and compressed.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for squeezing and folding a wide and long agricultural/fishery film in the width direction and then folding it in the length direction.

0002

[Background of the invention] It is made of polyethylene, polyvinyl chloride, ethylene-vinyl acetate film, polyolefin multilayer film, etc., and is used as a covering material for greenhouse cultivation such as greenhouses and tunnels for agriculture, including horticulture, or aquaculture houses for fisheries. The original film for agricultural and fishery use (sometimes simply called film) is pasted together in the width direction using a high-frequency sewing machine, etc., and the length is 1 to 10 meters, sometimes 20 to 20 meters.
It has a width of about 30 meters and a length of 10 meters to several hundred meters.

[0003] These wide and long films are folded into a bellows shape in the width direction and folded in the length direction to make them compact for convenient storage and transportation from manufacture to unfolding at the site. be packed.

Conventionally, in order to squeeze and fold a wide and long film as described above, one or two workers fold the front and back sides of the film, which is supplied in a squeezed and folded state, to the folding length. This was done by alternately pressing the sheets with the hands and distributing them from front to back.

[0005]

[Problem to be Solved by the Invention] However, the conventional manual drawing and folding work described above is a long and simple work, and is also heavy labor, which goes against the recent worsening labor shortage and the trend toward labor saving and rationalization. It has some drawbacks.

[0006] In addition, in manual folding, the width of folding when folding into a bellows shape is 30 cm, which is within reach when pressing the front and back sides of the film supplied in a folded state and separating it by hand. If the film width is 10 m or more, the amount of folding will increase, resulting in a thicker bundle, which not only makes the sorting work a laborious task, but also makes it difficult to ensure that the film is uniformly arranged. It has the disadvantage that it is extremely difficult to fold.

[0007]Furthermore, when folding is done manually, it is extremely difficult to always make the folded shape into a uniform shape depending on the timing and degree of sorting by workers, which not only looks bad but also results in standardized packaging. However, it has the disadvantage of being problematic in terms of storage and transportation.

[0008]Furthermore, in a manually folded film, even if the pinch roller removes the air trapped between the bellows at the stage of folding, the air will be trapped between the film again at the stage of folding. Not only does it take up more space for storage and transportation, but it also increases the bulk.
As the air contained inside deaerates over time and the volume decreases, the tied or tightened strings or bands may come off, or the cargo may collapse if stored in a pile, or it may cause problems during storage.
It has the disadvantage of being extremely troublesome.

[0009]

[Objects of the Invention] Therefore, the object of the present invention is, firstly, to provide a squeeze and folding machine for agricultural and fishery films that can save and rationalize labor by significantly omitting manpower; To provide a squeeze-folding machine for agricultural and fishery films that can squeeze and fold the film in a folded state.

0010

[Means for Solving the Problems] In order to achieve the above object, the present inventor has made extensive studies and has arrived at the present invention.

That is, the agricultural/fishery film squeeze-folding machine according to the present invention squeezes and folds a wide and long agricultural/fishery film into a bellows shape in the width direction, and then folds the agricultural/fishery film into strips at predetermined intervals in the length direction. A squeeze folding machine for agricultural and fisheries films that is folded into shapes, the squeeze folding machine includes a squeeze supply mechanism that sends the film in a squeezed and folded state to the next process, and a squeeze feed mechanism that squeezes and folds the film in the width direction. a folding mechanism having two folding guide members that alternately push both sides in the thickness direction of the film fed in a folded state each time the film is fed for a folding length to distribute the feeding locus of the film to both sides in the thickness direction; It is characterized by having.

[0012] Further, a preferred embodiment of the squeeze folding machine for agricultural and fishery films according to the present invention is as follows: (1) the two folding guide members are connected via a link mechanism;
■The placement position of the folded film is adjusted relative to the folding guide member according to the amount of folding so that the distance between the top layer of the folded film and the folding guide member is approximately constant. (1) It has a compression mechanism that deaerates and shapes the air contained in the film folded by the folding mechanism; (2) The operation of each mechanism is automatically controlled. .

[0013]

According to the present invention, the film that is supplied in the state of being squeezed and folded in a bellows shape in the width direction by the squeeze supply mechanism is folded by the two folding guide members of the folding mechanism each time the film is fed by the folding length. By alternately pressing both sides of the film in the thickness direction, the feeding locus of the film is distributed to both sides in the thickness direction, and by being sequentially supplied and distributed, the film is folded into a zigzag shape with uniform intervals. Since it is possible to widen the aperture fold width compared to the conventional method, the thickness of the folded film when folded is reduced, and the amount of air trapped between the films is significantly reduced. Therefore, the film is always folded into a spiral shape with uniform folding intervals and degassed, so the shape of the squeeze-folded film is beautiful and well-shaped, and there is almost no decrease in bulk over time.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic front view showing an embodiment of the agricultural/fishery film folding machine according to the present invention, FIG. 2 is a schematic right side view, and FIG. 3 is a schematic diagram of the folding guide member of the folding mechanism. The perspective view, FIGS. 4 and 5 are explanatory diagrams of the operating state of the folding mechanism.

In the figure, a squeeze folding machine (hereinafter sometimes simply referred to as a device) 1 is mainly composed of a squeeze supply mechanism 2, a folding mechanism 3, a placing table 4, and a conveyor mechanism 5. In the embodiment, a compression mechanism 6 is provided after each of these mechanisms. Note that it is preferable that the operations of these mechanisms be automatically controlled.

The apparatus 1 converts the leading end portion of a wide film F sent out from a pretreatment process (for example, a film manufacturing process, a film bonding process, an unraveling process, etc.) (not shown) located on the right side in FIG. The aperture is folded into a bellows shape in the direction and set in the aperture supply mechanism 2, and the folding mechanism 3 is used to arrange the mounting table 4 in a zigzag shape at predetermined intervals in the length direction.
After the film is folded upward, the film is conveyed to a compression mechanism 6 by a conveyor mechanism 5, and the compression mechanism 6 evacuates the air contained between the films F and shapes the film. The squeezed and folded film F is further conveyed by the conveyor mechanism 5 to a post-processing process such as a packaging process (not shown) located on the left side in FIG.

Each mechanism of the device 1 will be explained in detail below.

The squeeze supply mechanism 2 squeezes and folds the supplied film F into a bellows shape in the width direction, compresses the supplied film F, deaerates the air contained between the bellows, and supplies the film to the next process, the folding mechanism 3. It has a roller 20 and a width regulating roller 21 for maintaining a uniform drawing width of the drawn and folded film,
The entire structure is suspended from the frame 10. For a wide film F, an operator first places the leading end of the film F at an arbitrary distance in the width direction, for example, 50 to 1
The sheet is squeezed and folded into a bellows shape with an interval of about 50 cm, and set between the pinch rollers 20 while maintaining the squeezed and folded state. Conventionally, the folding interval was limited to a little less than 30 cm at most because the next step of folding was done manually, but with the folding mechanism 3 described later, in the present invention, the folding interval can be reduced to 30 cm.
Since it is possible to set any interval above, it is possible to set an interval of 50 to 150, which is originally a preferable interval for the aperture fold width.
The spacing can be set to approximately cm, that is, approximately the same width as a general folding width. Therefore, when films of the same length are folded, the device 1 of the present invention can significantly reduce the overall thickness compared to the conventional device, and also significantly reduce the amount of air trapped between the films. Can be done.

[0020] It goes without saying that this interval can be arbitrarily set to a desired interval depending on the film F to be squeezed and folded by the present apparatus 1. Furthermore, by adjusting the interval between the width regulating rollers 21, the interval may be set to within 30 cm as in the conventional method.

When the operator sets the film F between the pinch rollers 20 with only the leading end squeezed and folded, the continuous wide portion is automatically squeezed and folded.
You will pass through them sequentially. Note that it is preferable that the aperture supply mechanism 2 suspended from the frame body 10 be configured to be movable within the range indicated by the arrow X. With this configuration, when setting the leading end of the film F between the pinch rollers 20, the pinch roller 20 portion located approximately in the center of the frame 10 can be brought close to the operator's hand, making the setting work easier. Become.

As described above, the folding mechanism 3 folds the film F, which has been squeezed and folded in the width direction and is supplied by the aperture supply mechanism 2, onto the mounting table 4 in a zigzag shape at predetermined intervals in the length direction. Two folding guide members 3 are disposed on both sides of the film F in the thickness direction (left and right sides in FIG. 1) and are connected by a link mechanism 30.
1.32 (see schematic perspective view shown in Figure 3),
It is suspended from the frame 10. The folding guide member 3
1.32, by alternately pushing both sides of the film F in the thickness direction each time the film F is fed to the folded length, and distributing the feeding locus of the film F to both sides in the thickness direction,
The films F supplied by the aperture supply mechanism 2 are stacked on the mounting table 4 in a zigzag-folded state.

That is, as shown in FIG. 4, the folding guide member 31 is swung rightward in the drawing, so that the tip of the folding guide member 31 is on one side in the thickness direction of the film F (in the drawing,
(on the left side), the supply locus of the film F moves rightward in the drawing. Next, when the film F is supplied with a folding length (for example, the arbitrary length of about 50 to 150 cm mentioned above), the folding guide member 32 swings leftward in the drawing as shown in FIG. Since the tip of the member 32 pushes the other side of the film F in the thickness direction (the right side in the drawing),
The supply trajectory of the film F moves to the left in the drawing, contrary to the above. When the film F is further fed to the folded length, the feeding locus of the film F is moved rightward again by the folding guide member 31. By performing these series of operations continuously, the feeding trajectory of the film F is distributed to both sides in the thickness direction (left and right in the drawing), so that the film F is folded in a spiral pattern on the mounting table 4. becomes.

The folding guide members 31 and 32 are connected via the link mechanism 30 as described above, so when one is pushing the film F, the other escapes to the outside as shown in FIGS. 4 and 5. The situation is as follows. Furthermore, by connecting the folding guide members 31, 32 and the link mechanism 30, the series of operations described above can be reliably performed in a timely manner by only driving one of the folding guide members 31, 32 and the link mechanism 30. In addition, in Figure 3, 31
A and 32A are joints of the folding guide members 31 and 32, respectively.

The placing table 4 is arranged such that the uppermost layer of the film F folded on the placing table 4 and the folding guide member 31 are placed on the placing table 4.
- It is preferable to keep the distance from the film F substantially constant so that the folded length does not fluctuate, so that the film F descends in accordance with the amount of film F supplied. In order to keep the distance between the top layer of the folded film F and the folding guide members 31 and 32 substantially constant, the placement position of the film F should be set relative to the folding guide members 31 and 32. Any configuration that can be moved is sufficient. That is, the folding guide members 31 and 32 may be raised, or both may be moved.

The conveyor mechanism 5 conveys the films F, which have been squeezed and folded into a stack on the placement table 4 by the folding mechanism 3, to the compression mechanism 6, which is the next step. As the conveyor mechanism 5, the film F to be placed is
Any type of conveyor may be used as long as it can withstand the weight of the conveyor and the compression of the compression mechanism 6 in the next step. For example, a general conveyor such as a known belt conveyor or roller conveyor may be used.

The compression mechanism 6 is an air or hydraulic cylinder 6.
It has a compression plate 61 that moves up and down by 0, and the compression plate 61
The film F on the mounting table 4 conveyed by the conveyor mechanism 5 is compressed by descending under pressure. By compressing with this compression mechanism, even if a small amount of air is trapped between each film when folded into a zigzag shape in the length direction by the folding mechanism 3, the remaining air can be almost completely removed. I can care. Through such degassing and shaping, the shape of the squeezed and folded film F becomes beautiful and well-shaped.

[0028]

Effects of the Invention According to the present invention, a wide and long film that is supplied in a state of being squeezed and folded in a bellows shape in the width direction by the squeezing supply mechanism is folded into two folds of the folding mechanism each time the folded length is fed. The structure is such that two folding guide members alternately push both sides of the film in the thickness direction, distributing the feeding trajectory of the film to both sides in the thickness direction and folding it, making it possible to widen the aperture fold width compared to conventional methods. Therefore, the folded film has a reduced thickness when folded, and the amount of air trapped between the films is significantly reduced. Therefore, since the film is always folded in a spiral shape with uniform folding intervals and deaerated, the shape of the squeeze-folded film is beautiful and well-shaped. Furthermore, such work can be performed with a great deal of labor saving and rationalization.

[0029] In addition, agricultural and fishery films that have been squeezed and folded into a beautiful and well-shaped vine shape do not lose volume over time, so they can be easily tied or tightened with strings or bands, and can be packed easily. , the cargo will not collapse even when stored in piles.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view showing an embodiment of a film squeezing and folding machine for agriculture and fisheries according to the present invention.

FIG. 2 is a schematic right side view as well.

FIG. 3 is a schematic perspective view of a folding guide member of the folding mechanism.

FIG. 4 is an explanatory diagram of the operating state of the folding mechanism.

FIG. 5 is an explanatory diagram of the operating state of the folding mechanism.

[Explanation of symbols]

1 Squeezing and folding machine (device) for agricultural and fishery films 2
Squeezing supply mechanism 3 Folding mechanism 4 Placing table 5 Conveyor mechanism 6 Compression mechanism 10 Frame 20 Pinch roller 21 Width regulation roller 30 Link mechanism 31 Folding guide member 32 Folding guide member 60 Air or hydraulic cylinder 61 Compression plate

Claims (5)

[Claims] 1. A squeeze folding machine for agricultural and fisheries films, which squeezes and folds a wide and long agricultural and fisheries film into a bellows shape in the width direction, and then folds it into a zigzag shape at predetermined intervals in the length direction. , the squeeze-folding machine includes a squeeze-feeding mechanism that sends the film in a squeeze-folded state to the next process; and a squeeze-and-fold mechanism that folds both sides in the thickness direction of the film that is supplied in a squeeze-folded state in the width direction. A folding mechanism having two folding guide members that are alternately pushed each time a length is fed to distribute the feeding locus of the film to both sides in the thickness direction. Aperture folding machine. 2. A squeeze folding machine for agricultural and fisheries films according to claim 1, wherein the two folding guide members are connected via a link mechanism. 3. The placement position of the folded film is adjusted relative to the folding guide member according to the amount of folding so that the distance between the uppermost layer of the folded film and the folding guide member is approximately constant. 3. A squeeze folding machine for agricultural and fisheries films according to claim 1 or 2, characterized in that the folding machine is configured to move relative to each other. 4. The film for agriculture and fisheries according to claim 1, further comprising a compression mechanism that deaerates air contained in the film folded by the folding mechanism and shapes the film. Film aperture folding machine. 5. A squeeze folding machine for agricultural and fisheries films according to claim 1, wherein the operation of each mechanism is automatically controlled.