JP2009106189A - Mulching sheet-laying machine with feeding-out device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mulching sheet-laying machine with a feeding-out device which reliably feeds out a mulching sheet to be improved in working efficiency because the mulching sheet is prevented from sticking to or winding around the machine. <P>SOLUTION: The mulching sheet-laying machine with a feeding-out device is provided with a mulching sheet holder 2 rotatably holding a mulching sheet roll 21 around which a mulching sheet 20 is wound on a roll, a covering device 4 covering ridges with the mulching sheet unwound from the mulching sheet roll, and a sheet feeding-out device 3 disposed between the mulching sheet holder and the covering device to feed out the mulching sheet. The feed-out device is provided with a pair of feeding-out axes 301, 302 at least one of which is rotationally driven in a width direction of the mulching sheet, at the front side and the back side of the unwound mulching sheet, and feeding-out rings 303a, 303b formed into gearwheel-like tooth faces engaged with each other, are attached to the feeding axes. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a multi-sheet laying machine with a feeding device for feeding out a multi-sheet of a necessary length in a multi-sheet laying machine that lays a multi-sheet on a farm field and coats a straw.

  Patent Document 1 is known as a multi-sheet laying machine that further extends a necessary length in order to fix the end of a multi-sheet with a headland after the multi-sheet is covered up to the edge of the straw in the field.

  In the multi-sheet laying machine described in Patent Document 1, the first and second pinch rolls, each consisting of a pair of upper and lower sides, are mounted on a movable body capable of mounting a multi-sheet wound in a roll shape. And is provided. These pinch rolls have a cylindrical shape, and sandwich the multi-sheet therebetween, and rotate the pinch roll to convey the multi-sheet by friction with the peripheral surface.

  According to the multi-sheet laying machine provided with such a conveying device, the operator can feed out a multi-sheet of a necessary length without getting out of the driver's seat, so that improvement in work efficiency can be expected.

However, in the nipping and conveying method in which the multi-sheet is fed by friction with the peripheral surface of the pinch roll as described above, the unrolled multi-sheet is pressed against the peripheral surface by the pressure of the pinch roll, or the pinch roll is caused by static electricity or the like. Sometimes it was stuck on. In such a case, the multi-sheet was not drawn out normally, and the multi-sheet attached to the pinch roll was caught in the rotating pinch roll.
JP-A-6-133653

  The problem to be solved is that, in the conventional feeding device using the pinch roll, the fed multi-sheet may stick to the pinch roll, and in this case, the multi-sheet is wound around the rotating pinch roll. The present invention is to provide a multi-sheet laying machine with a feeding device that can reliably feed out the multi-sheet and improve the work efficiency without the multi-sheet sticking or winding. Objective.

In order to solve the above-mentioned problem, the invention according to claim 1 is to cover a ridge with a multi-holding tool that rotatably holds a multi-roll in which a multi-sheet is wound around a roll, and a multi-sheet that is unwound from the multi-roll. In a multi-sheet laying machine with a feeding device provided with a coating device, and a sheet feeding device that feeds a multi-sheet between the multi-holding device and the coating device, the sheet feeding device includes a front side and a back side of the unrolled multi-sheet. And a pair of feeding shafts, at least one of which is driven to rotate in the width direction of the multi-sheet, and a feeding wheel having gear-like tooth surfaces meshing with each other is attached to these feeding shafts.
The multi-sheet laying machine configured as described above coats the multi-sheets with the covering device, and the multi-sheet sandwiched between the feeding wheels of the feeding shaft provided on the front side and the back side of the multi-sheet at the heel end is fed out. By rotating the shaft, it is pulled out by the engagement of both wheels and fed out.
According to a second aspect of the present invention, in the configuration of the first aspect, the feeding wheel is rounded to form a corner.
The multi-sheet laying machine configured as described above has a sharp corner for the multi-sheet that is formed by rounding the peripheral edge of the feeding wheel and the tooth tip of the tooth surface formed on the circumferential surface and being partially pulled out by the feeding wheel. Will not win.
According to a third aspect of the present invention, in the configuration of the first aspect, one of the feeding shafts is a driving shaft, and the other feeding shaft is a driven shaft that is supported by a long hole formed low toward the driving shaft. It is characterized by.
In the multi-sheet laying machine having the above configuration, when the multi-sheet is laid, the driven shaft moves backward in the range of the long hole formed low toward the drive shaft due to the tension of the multi-sheet acting on the driven wheel of the driven shaft. When the multi-sheet is pulled out, the feeding wheel is idled in the retracted position without restraining, and when the multi-sheet is fed out, the multi-sheet is loosened, and the driven shaft returns to its meshing position with the feeding wheel.
According to a fourth aspect of the present invention, in the configuration of the first aspect, the feeding device includes a cutting mechanism for cutting the multi-sheet in the width direction.
In the multi-sheet laying machine configured as described above, after a multi-sheet having a required length is fed out by the sheet feeding device at the heel end, the multi-sheet is cut in the width direction by the cutting mechanism.

  In the multi-sheet laying machine with a feeding device configured as described in claim 1, when the multi-sheet is sandwiched between the feeding wheels and the feeding shaft is rotationally driven, the shear due to the speed difference between the meshing tooth surfaces of both feeding wheels. It is fed out while receiving force on both sides of the multi-sheet. As a result, the multi-sheet can be reliably fed without sticking to the tooth surface of the feeding wheel, and the work efficiency can be improved.

  By configuring as described in claim 2, even if the multi-sheet that is partially sandwiched and drawn out by the feeding wheel hits the corner of the peripheral edge of the feeding wheel or the tooth tip of the tooth surface, the multi-sheet A load exceeding the tensile strength in the width direction is not applied. As a result, there is no inconvenience such as tearing of the multi-sheet in the length direction, the multi-sheet can be pulled out reliably, and the work efficiency can be improved.

  By configuring as described in claim 3, the multi-sheet tension operation causes the driven shaft to retreat within the elongated hole during the multi-sheet laying operation. As a result, the feeding wheel idles in the retracted position and does not interfere with the drawn out multi-seat, and the multi-seat is drawn out smoothly as the laying machine advances, and the multi-seat feeding work is performed. Sometimes, the driven shaft returns to the meshing position of the feeding wheel due to its own weight, and the multi-seat can be reliably fed by the feeding wheels of both shafts.

  By configuring as described in claim 4, the multi-sheet can be cut at a required length at the heel end. As a result, after the multi-sheet is coated on the heel, the multi-sheet of the length necessary for fixing to the headland is left at the end of the heel, and the operator can simply fix the multi-sheet to the headland. Labor can be reduced because only simple manual work is required.

  Hereinafter, an embodiment of a multi-sheet laying machine with a feeding device according to the present invention will be described with reference to FIGS.

  First, the multi-sheet laying machine of this embodiment is demonstrated with reference to FIG.1 and FIG.2. FIG. 1 is a side view of a multi-sheet laying machine with a feeding device according to the present invention, and FIG. 2 is a main part rear view thereof.

  The multi-sheet laying machine 1 according to the present embodiment is configured integrally with a vertical rotary 10 and a vertical molding machine 11 and is connected to a hitch 12 of a mobile agricultural machine such as a tractor. The vertical rotary 10 and the vertical molding machine 11 are arranged in this order from the front side in the traveling direction F, and the multi-sheet laying machine 1 is assembled behind the vertical molding machine 11.

  The multi-sheet laying machine 1 includes a multi-holder 2 that rotatably supports a multi-roll 21 around which a film-like multi-sheet 20 is wound, and a sheet that is unwound by unwinding a multi-sheet 20 of a certain length from the multi-roll 21. The feeding device 3 and the covering device 4 for laying the unwound multi-sheet 20 on a ridge. These are attached to support frames 14 and 15 projecting rearward from the hitch 12.

  The support frame 14 is provided on the left and right, and the multi-holding tool 2 and the sheet feeding device 3 are attached to the support frame 14. The multi-holding tool 2 is formed by attaching shaft supports 23 and 23 to multi-roll holding rods 22 and 22 erected upward from the left and right support frames 14, and the multi-roll 21 is rotatably supported by the shaft support 23. To do.

  The sheet feeding device 3 is disposed below the multi-roll 21. In the sheet feeding device 3, support plates 33 and 33 are integrally attached to the left and right support frames 14, respectively. Between the support plates 33 and 33, as shown in FIG. The multi-sheet 20 is cut at a cutting position indicated by a broken line by an electric heater 321 provided with a presser mechanism 31 that holds and holds the front side of the fed-out multi-sheet 20, a moving mechanism that slides left and right, and a heating mechanism. The cutting mechanism 32 is arranged. The presser mechanism 31 and the cutting mechanism 32 are connected via a linkage mechanism 34. Details of each mechanism will be described later.

  The covering device 4 is provided on a center frame 150 attached to a central support frame 15 and left and right side frames 151 and 151. The center frame 150 is provided with a center roller 40 arranged so that the central portion of the unrolled multi-sheet 20 is folded back to the front F, and the multi-sheet 20 projects to the center by projecting to the center roller 40 in the lateral direction. A presser bar 400 is attached so as not to hold it. The left and right side frames 151 are provided with left and right treading wheels 41 and earthing disks 42 that step on the left and right edges of the multi-seat 20 and lay the soil on both hem positions. These are arranged from the lower side to the rear side of the sheet feeding device 3.

  Next, each mechanism of the sheet feeding device 3 will be described in detail with reference to the drawings. First, the feeding mechanism 30 will be described.

  The feeding mechanism 30 includes a pair of feeding shafts arranged on the front side and the back side along the width direction of the multi-sheet 20, and feeding gears 303a and 303b that are attached to the feeding shaft and mesh with each other. In the present embodiment, one of the feeding shafts is connected to the drive motor 300 to serve as the drive shaft 301, and the other is a follower that can move toward and away from the drive shaft 301 by means of the long holes 330 and 330 formed in the support plates 33 and 33. The axis 302 is used.

  The drive shaft 301 is pivotally supported on the support plates 33 and 33 below the multi-roll 21 and is connected to the motor 300. The driven shaft 302 is disposed on the rear side in the traveling direction of the drive shaft 301 (left side in FIG. 1). The long hole 330 is low toward the drive shaft 301 and is formed higher as the distance from the drive shaft 301 increases, and the driven shaft 302 is lowered by its own weight toward the lower end of the long hole 330, that is, the drive shaft 301 side. 301 and the feeding wheels 303a and 303b of the driven shaft 302 mesh with each other. FIG. 3 shows a state where the feeding wheels 303a and 303b are engaged with each other.

  Gear-shaped tooth surfaces that mesh with each other are formed on the peripheral surfaces of the feeding wheels 303a and 303b. When the drive shaft 301 is rotated by the motor 300, the feeding wheels 303a and 303b are engaged with each other and the driven shaft 302 is rotated together. Further, the feeding wheels 303a and 303b of the present embodiment are formed rounded by taking the peripheral edge of the left and right end faces and the corner of the tooth tip.

  As a preferred embodiment, the feeding mechanism 30 of the present embodiment has the feeding wheels 303a and 303b to be paired arranged at three positions of the left and right edge positions and the center position of the multi-sheet, but the multi-sheet width is short. In some cases, it may be arranged only at the left and right edge positions or only at the center position. When the left and right widths of the multi-sheet are long, the feeding wheels 303a and 303b may be arranged at four or more locations, or wide feeding wheels formed long in the axial direction may be used.

  Further, in the feeding mechanism 30 of the present embodiment, the multi-seat 20 is fed out by meshing a pair of feeding wheels 303 a and 303 b attached to the drive shaft 301 and the driven shaft 302, but the feeding wheel 303 is provided only on the driving shaft 301. The attachment and driven shaft 302 may be configured by attaching a disc wheel whose peripheral surface is made of an easily deformable material such as urethane. The peripheral surfaces of the disk wheels are deformed by the tooth surfaces of the feeding wheels and mesh with each other. The multi-sheet can be fed by both wheels and the multi-sheet can be fed by meshing the both wheels.

Next, the presser mechanism 31 will be described.
The presser mechanism 31 of this embodiment is composed of a pair of pressing bodies 310 and 311 having a length over the entire width of the multi-sheet 20, and is provided below the feeding mechanism 30. Each of the pressing bodies 310 and 311 includes an arm portion 312 extending in the radial direction from the rotation axis and a rotating portion 313 that is long in a belt shape. The contact surface of the rotating part 313 is preferably formed by a gripping member 314 made of rubber or sponge so that the multi-sheet 20 does not slip.

  Each of the pressing bodies 310 and 311 includes rotation gears 315 and 316 having the same number of teeth, and these are transmitted so as to rotate in opposite directions. The rotating gears 315 and 316 form a synchronization mechanism to rotate the rotating portions 313 and 313 facing each other. Power of a drive gear 317 driven by a motor (not shown) is transmitted to the rotation gears 315 and 316, and the pressing bodies 310 and 311 are rotated opposite to each other. It is preferable to use a drive gear 317 having a smaller number of teeth than that of the rotating gear and to decelerate the pressing bodies 310 and 311 so as to be driven at an appropriate speed.

  A linkage mechanism 34 is connected to the pressing bodies 310 and 311. This linkage mechanism 34 is composed of a limit switch, and transmits a switch signal when the pressing bodies 310 and 311 are closed, thereby stopping the motor rotating the driving gear 317 and closing the pressing bodies 310 and 311. While holding, a switch signal for starting the operation of the cutting mechanism 32 described later is transmitted.

  Further, even when the pressing bodies 310 and 311 are rotated and opened (for example, when both pressing bodies are rotated 180 ° from the closed state), the linkage mechanism 34 is operated to stop the motor and hold the opened state. .

  As a preferred embodiment, the presser mechanism 31 of the present embodiment is configured by a pair of left and right pressing bodies 310 and 311 including a rotating portion 313. For example, one pressing body is fixed to a support plate and the other is pressed. A rotation mechanism may be formed in the pressing body, and the pressing mechanism may be configured so that the other pressing body is brought into contact with and separated from the fixed pressing body. If comprised in this way, since a synchronous mechanism becomes unnecessary, a presser mechanism can be comprised further easily.

  Next, the cutting mechanism 32 will be described. The cutting mechanism 32 according to the present embodiment includes a guide member 320 formed of rails installed on the left and right support plates 33 and 33, and an electric heater 321 that slides along the guide member 320.

  The guide member 320 of the present embodiment is a rod-like body that is constructed on the left and right support plates 33, 33 and is formed of a prismatic rail. The guide member 320 is attached almost parallel to the multi-roll 21 held by the sheet holding unit 2.

  The electric heater 321 includes grooved wheels 322a and 322b that roll along a prismatic guide member 320, a motor 323 that drives the grooved wheel 322a, and a substrate 324 that is integrally assembled with these. Further, a pair of support rods 325a and 325b are extended from the substrate 324 between the feeding mechanism 30 and the presser mechanism 31 below, and a heating wire 326 is installed at the tip to form a heating mechanism. A battery (not shown) is connected to the heating wire 326.

  The grooved wheels 322a and 322b of the electric heater 321 and the guide member 320 form a moving mechanism. By engaging the grooved wheels 322a and 322b and the guide member 320, the straightness of the electric heater 321 is ensured and the posture is maintained so that the electric heater 321 does not rotate around the traveling direction.

  The grooved wheels 322a and 322b of the present embodiment have a substantially cylindrical shape with a recessed central portion, and one is disposed above and below the guide member 320 having a rhombic cross section. The upper grooved wheel 322a is rotationally driven by a motor 323, and the lower grooved wheel 322b rolls according to this, whereby the upper and lower grooved wheels 322a and 322b roll while engaging with the guide member 320. While maintaining the posture of 321, the heating wire 326 held by the electric heater 321 is moved along the guide member 320 over the entire width of the multi-sheet 20.

  The support rods 325a and 325b have their tips extended between the feeding mechanism 30 and the presser mechanism 31, and a heating wire 326 is installed between the tips.

  A battery (not shown) for heating the heating wire 326 is mounted on the multi-sheet laying machine 1 or a mobile agricultural machine (not shown). It is good also as a structure which attaches to the electric heater 321 and moves with the electric heater 321. FIG.

  In the sheet feeding device 3 of the present embodiment, as a preferred embodiment, the moving mechanism is configured such that the substantially cylindrical grooved wheels 322a and 322b whose center portion is recessed on the guide member 320 formed of a rail having a rhombus cross section rolls. However, the moving mechanism may be configured by a linear motion mechanism including a rack and a pinion.

  FIG. 4 is a side sectional view of the sheet feeding device 3. The right direction of the drawing is the traveling direction F of the multi-sheet laying machine. The unrolled multi-sheet 20 passes between the left and right feeding wheels 303a and 303b and between the left and right pressing bodies 310 and 311.

  The support rods 325a and 325b of the electric heater 321 have their tips extended between the feeding mechanism 30 and the presser mechanism 31, and one tip is in front of both the mechanisms 30 and 31, and the other tip is It arrange | positions rather than both mechanisms 30 and 31 in the advancing direction back side. The heating wire 326 is installed between the both ends, and the heating wire 326 is configured to be able to interfere with the multi-sheet 20 that hangs down between the mechanisms 30 and 31.

  At the time of laying work, the multi-sheet 20 is pulled and tensioned as the multi-sheet laying machine proceeds (shown by a solid line). At this time, the central portion 20a of the multi-sheet 20 projects forward F by the center roller 40, but the left and right side edges 20b are pulled rearward. The feeding wheel 303b retreats along the elongated hole 330 by the tension of the left and right side edges 20b of the multi-seat 20 pulled rearward (shown by a solid line), and does not mesh with the feeding wheel 303a. The space between the pressing bodies 310 and 311 is wide open to the left and right and does not interfere with the multi-sheet 20.

  At the time of non-working, the multi-sheet 20 is loosened and hangs down, the feeding wheels 303a and 303b are engaged with each other, the multi-sheet 20 is sandwiched between the both wheels 303a and 303b, and the original side is pressed. The left pressing body 310 is rotated clockwise, and the right pressing body 311 is rotated counterclockwise to press the front side of the multi-sheet 20.

  The operation and effect of the multi-sheet laying machine having the above configuration will be described below with reference to FIG. First, the operation will be described.

  At the time of the multi-sheet covering operation, the front side of the multi-sheet 20 is laid on the heel, and the left and right edges of the multi-sheet 20 are pulled backward as the multi-sheet laying machine advances. Due to the tension, the driven shaft 302 moves backward within the range of the elongated hole 330 and is lifted to the retracted position (shown by the broken line in FIG. 5A), and the feeding wheel 303b is idled at this position. Since the pressing bodies 310 and 311 of the presser mechanism 31 are also wide open to the left and right, the rotating portions 313 and 313 do not interfere with the multi-sheet 20 and the multi-sheet 20 is pulled out smoothly.

  After covering the multi-sheet 20 to the end of the heel, in order to fix the end of the multi-sheet 20 to the headland and finish the multi-sheet laying operation on the heel, first, the necessary length from the multi-roll 21 by the feeding mechanism 30 is reached. The multi-sheet 20 is fed out.

  In the feeding operation, first, the tensioned multi-sheet 20 is loosened, the feeding wheels 303a and 303b are engaged, and the multi-sheet 20 is sandwiched. Next, the drive shaft 301 is driven by the motor 300 and both the feeding wheels 303a and 303b are rotated to feed out the multi-sheet 20 having a required length.

  The multi-sheet 20 fed out in this manner hangs down between the pressing members 310 and 311 of the presser mechanism 31 held in an open state (FIG. 5A shows a solid line).

  Next, the front side of the multi-sheet 20 is pressed by the pressing mechanism 31. When the pressing mechanism 31 is operated, the pressing body 310 on the left side of the drawing rotates clockwise and the pressing body 311 on the right side rotates counterclockwise and closes from above, and holds the multi-sheet 20 while holding it downward. (FIG. 5B).

  At this time, the original side of the multi-sheet 20 is pressed by the feeding mechanism 30. That is, the driven shaft 302 is lowered by its own weight to the lower end of the long hole 330, that is, the drive shaft 301 side, and the feeding wheels 303a and 303b are engaged with each other at this position to sandwich the multi-roll side, that is, the original side of the multi-sheet 20 It is holding down on the full width.

  A linkage mechanism 34 is attached to the pressing bodies 310 and 311, and when the pressing bodies 310 and 311 are closed, the motor is stopped and the closed state is maintained. Further, at this time, a switch signal for operating the cutting mechanism 32 is transmitted from the linkage mechanism 34. When this switch signal is received, the moving mechanism and the heat generating mechanism are driven to start heating the heating wire 326 and the electric heater 321 moves along the width direction of the multi-sheet 20 (perpendicular to the plane of FIG. 5).

  The heating wire 326 is short enough to cover the front and back of the multi-sheet 20, and is rapidly heated to a temperature at which the multi-sheet 20 can be melted even when heated by a small battery having a small capacity and a small weight load. The posture of the vessel 321 is maintained by the guide member 320 and the grooved wheels 322a and 322b, and the heating wire 326 moves and moves over the entire width while interfering with the multi-sheet 20, so that the multi-sheet 20 is melted.

  In this manner, the multi-sheet 20 having a length necessary for the fixing process to the headland is left on the basket that has finished the covering operation. An operator fixes the head of the multi-sheet 20 to the headland by putting soil or the like.

  The effects of the multi-sheet laying machine configured as described above will be described below.

  At the time of cutting the multi-sheet, since the heating wire is blown by a slight part that interferes with the multi-sheet, i.e., the short temperature rising part extending in the thickness direction of the multi-sheet across the front and back of the multi-sheet, Rapid heating up to a temperature sufficient for fusing is possible even with a small amount of electric power, and high-speed operation is realized by the rapid heating, and the multi-sheet can be blown out reliably to improve work efficiency.

  Further, since the heating wire is short, the temperature can be increased in a short time even when using a battery with a small capacity and a small weight load, which is advantageous in terms of cost because of a small weight load on the battery and excellent in practicality.

  The presser mechanism opens and closes when the rotating portions of the pair of pressing bodies face each other, and opens and closes between the rotating portions to open the multi-seat and closes both pressing bodies. It is configured to hold the entire width across the front and back of the multi-sheet by operation, and when laying the multi-sheet, the space between the two pressing bodies is wide open to open, and the multi-sheet that covers the bag while being pulled out And the pressing bodies do not interfere with each other, and when the multi-sheet is cut, both pressing bodies are closed and closed by a rotating operation, and the multi-sheet can be held from the front and back to hold the entire width. With a simple configuration with a pair of rotating pressing bodies, the multi-sheet and the pressing body do not interfere with each other in the open state, and suitable work can be performed, and the multi-sheet can be easily closed and reliably It is possible to hold the over door.

  In addition, since the multi-sheet can be pressed while being closed by closing both pressing bodies from the original side of the multi-sheet toward the front side, the position of the multi-sheet between the original-side and front-side pressing mechanisms during the cutting operation There is little deviation, the heating wire can be shortened, and the multi-sheet can be cut smoothly and reliably.

  In addition, the moving mechanism and the heat generating mechanism are provided with a linkage mechanism that operates the moving mechanism and the heat generating mechanism when the multi-sheet is pressed by the presser mechanism. When pressed, the multi-sheet is blown by operating the moving mechanism and heat generation mechanism via the linkage mechanism, so that the multi-sheet is reliably blown in a state where the multi-sheet is held by the holding mechanism by simple operation and simple control. Is possible.

  The feeding mechanism includes a pair of feeding wheels having gear-shaped tooth surfaces meshing with each other on the peripheral surface, and the multi-sheet is sandwiched between these feeding wheels. When the feeding shaft is rotationally driven, the multi-sheet is fed out while receiving the shearing force due to the speed difference between the meshing tooth surfaces of both feeding wheels. As a result, the multi-sheet can be reliably fed without sticking to the tooth surface of the feeding wheel, and the work efficiency can be improved without the need for unraveling the wound multi-sheet.

  The presser mechanism and the feeding mechanism are integrally configured, and the sheet feeding device can be formed compactly with a simple configuration.

  In addition, since the holding mechanism on the original side is integrated with the feeding mechanism, a multi-sheet of a necessary length can be fed out by the feeding mechanism even when the covering operation to the adjacent ridge is started after the cutting work. This eliminates the need to manually pull out the multi-sheet and check the length of the multi-sheet that has been pulled out.

  Furthermore, since the presser mechanism on the front side is widely opened between the rotating parts of both pressing bodies, even if the multisheet is fed out by the feeding mechanism after the cutting operation, the leading edge of the multisheet that has been fed out is on the original side. There is no need to pass between the pressing members of the presser mechanism reliably and confirm the passage position of the multi-sheet or correct it correctly.

  The feeding wheel is formed with rounded corners at the peripheral edge and the tip of the tooth tip, and the multi-sheet pulled out while being partially sandwiched by the feeding wheel hits the corner of the peripheral edge of the feeding wheel or the tooth tip of the tooth surface formed on the peripheral surface. However, since the load exceeding the tensile strength in the width direction is not applied to the multi-sheet, there is no inconvenience such as tearing of the multi-sheet in the length direction, and the multi-sheet can be pulled out without fail. Efficiency can be improved.

  A pair of feeding shafts arranged on the front side and the back side of the multi-seat has one as a drive shaft and the other as a driven shaft supported by a long hole formed low toward the drive shaft. During work, the driven shaft moves backward in the range of the long hole due to the tension of the multi-seat, so the feeding wheel idles in the retracted position and does not interfere with the multi-seat being pulled out, and as the laying machine advances The multi-seat is fed out smoothly, and when the multi-seat is drawn out, the driven shaft returns to the meshing position of the feeding wheel due to its own weight, and the multi-seat can be reliably fed out by the feeding wheels of both shafts. is there.

It is a side view of a multi-sheet laying machine provided with a sheet feeding device according to the present invention. It is a rear view of a multi-sheet laying machine. It is a principal part perspective view of a multi-sheet laying machine. It is principal part side surface sectional drawing of a multi-sheet laying machine. It is a side block diagram showing the operation of the sheet feeding device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Multi sheet | seat laying machine 10 Rotary for laying 11 畝 Forming device 12 Hitch 14, 15 Support frame 150 Center frame 151 Side frame 2 Multi holder 20 Multi sheet 20a Center part 20b Side edge part 21 Multi roll 22 Multi holding rod 23 Axis Support 3 Sheet feeding device 30 Feeding mechanism 300 Motor 301 Driving shaft 302 Driven shaft 303a, 303b Feeding wheel 31, 31a Pressing mechanism 310, 311 Pressing body 312 Arm portion 313 Rotating portion 314 Holding member 315, 316 Rotating gear 317 Driving gear 318 Press body 32 Cutting mechanism 320 Guide member 321 Electric heater 322a, 322b Grooved wheel 323 Motor 324 Substrate 325 Support rod 326 Heating wire 33 Support plate 330 Slot 34 34 Linkage mechanism 4 Covering device 40 Center roller 400 Presser bar 41 Treadle wheel 42 Doughing disc

Claims (4)

A multi-holding tool (2) for rotatably holding a multi-roll (21) wound around a multi-sheet (20), and a coater (4) for covering a ridge with the multi-sheet wound from the multi-roll; In a multi-sheet laying machine with a feeding device provided with a sheet feeding device (3) for feeding a multi-sheet between a multi-holding tool and a covering device,
The sheet feeding device (3) includes a pair of feeding shafts (301, 302) on which at least one extending in the width direction of the multi-sheet is rotationally driven on the front side and the back side of the unrolled multi-sheet.
A multi-sheet laying machine with a feeding device, wherein feeding wheels (303a, 303b) having gear-shaped tooth surfaces meshing with each other are attached to these feeding shafts (301, 302).   The multi-sheet laying machine with a feeding device according to claim 1, wherein the feeding wheel (303a, 303b) is rounded to form a corner.   One of the feeding shafts is a drive shaft (301), and the other feeding shaft is a driven shaft (302) pivotally supported by a long hole (330) formed low toward the driving shaft. A multi-sheet laying machine with a feeding device according to 1.   The multi-sheet laying machine with a feeding device according to claim 1, wherein the feeding device (3) includes a cutting mechanism (32) for cutting the multi-sheet in the width direction.

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