JP2626835B2 - Tunnel film stretching device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application field] The present invention drives an inverted U-shaped column in the transverse direction of a ridge at a predetermined interval while moving the column, and then forms a film on the frame in a tunnel shape. It relates to a device for covering in series.

[Conventional technology]

As an apparatus for stretching a long synthetic resin film on a ridge in a tunnel shape, there are proposed (1) Japanese Patent Application Laid-Open No. 61-282024, and (2) Japanese Utility Model Application Laid-Open No. 62-33554.

These devices support the inverted U-shaped column with a holder,
The strut is transferred by the transfer device toward the penetrating device, and is supplied one by one at the receiving position of the penetrating device. The cylinder device of the penetrating device is operated to push the lower end of the strut into the soil on both sides of the ridge. I'm doing it.

[Problem to be Solved by the Invention] However, the device of the above (1) is a device of a type for supplying a support from the rear of the pushing device, and when driving the support, the tractor is stopped at the driving position one by one. There is a problem that it is necessary to operate and that the driving operation cannot be performed efficiently.

Further, since this device requires a strut driving device, a strut feeding device for supplying struts to the striking device one by one, and a strut holder for holding a large number of struts, a series of operations are performed. The device to be enlarged becomes a device that cannot be turned around as a whole. Further, since the long horizontal frame is arranged on the lower side behind the driving device, the pushed-in strut passes between the horizontal frames, and the frame body is not overturned by the horizontal frame. There is a problem that the shape and size of the support are limited.

On the other hand, in the case of the device (2), the support is supplied from the front of the driving device. In the case of this device, projecting pieces are projected horizontally on both sides of the lower portion of the support, and Is pressed by a presser wheel and pushed into a field. Therefore, it is necessary to use a special shape for the column, and it is necessary to fix the protruding piece that engages with the pressing body at a predetermined position of the column. There is a problem that the projection is caught on handling and the operation becomes difficult.

The present invention has been obtained to solve the problems of the conventional tunnel-like film stretching apparatus,
It is an object of the present invention to provide an apparatus that can drive a strut into a predetermined position in a field while moving.

Another object is to provide a supporting and transporting function of the support of the support transporting unit so that a large amount of supports can be supported and supplied one by one to the driving device. An object of the present invention is to provide a miniaturized device.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a column driving section for driving both ends of an inverted U-shaped column into a field, a column conveying section for supplying a column to the column driving section from the rear, and a column conveying section. A tunnel-like film stretching device comprising a film covering portion which is located at the rear of the portion and covers the pillars driven into the field with the film drawn from the film roll and covers the ends thereof. The strut pressing plate constituting the main part of the part is disposed parallel to the frame on the back side of the frame which is inclined in the direction opposite to the traveling direction of the fuselage, and further, behind the strut pressing plate. A strut holding guide that holds the strut during the striking operation by the strut pressing plate is provided, and a strut holding guide parallel to the strut pressing plate is provided, and both ends of the strut during the striking operation by the strut pressing plate on the back side of the strut pressing plate. Providing a column narrowing section to narrow the gap A tunnel-like film stretching device.

(Operation)

In this way, the strut pressing plate constituting the main part of the strut driving portion is disposed in parallel to the frame on the back side of the frame inclined in the direction opposite to the traveling direction of the fuselage,
Behind the strut pressing plate, a strut holding guide parallel to the strut pressing plate that holds the strut during the striking operation by the strut pressing plate is arranged, and the striking operation by the strut pressing plate on the back side of the strut pressing plate. By providing a column squeezing portion that narrows the interval between both ends of the middle column, the column enters the field in a state inclined backward, but is driven while being caused by the advance of the aircraft. At this time, since the both ends of the column are held by the column narrowing portion, the column is driven into substantially the same width.

〔Example〕

 Next, an embodiment of the present invention will be described with reference to the drawings.

A tunnel-like film stretching apparatus according to the present invention performs a striking operation of a column while being connected to and lifted by a lift cylinder of a hydraulic lifting mechanism via a working machine connecting link mechanism of a tractor and being pulled.

The tunnel-like film stretching apparatus according to the present invention is configured by arranging a column pushing portion 1 at a front portion, and arranging a column conveying portion 2 and a film covering portion 3 behind the column pushing portion 1. The strut driving portion 1 is inclined backward by an angle α, and the strut transport portion 2 is entirely inclined forward by an angle β.

The frame 1a constituting the strut driving portion 1 is connected to the working machine link mechanism of the tractor, and supports the strut pressing plate 1b on the rear surface thereof in a vertically movable manner, and the frame 1a and the strut pressing plate 1b Driving cylinder that can be extended and retracted between
1c (hydraulic cylinder) can reciprocate up and down.

A pressing plate 1d for pressing the upper surface of the column 30 is attached to the rear surface of the column pressing plate 1b by bolting a mounting plate 1d 'fixed thereto, and a column above the pressing plate 1d. The pressing plate 1b is provided with three support pressing guides 1f having the same thickness as the width of the pressing plate 1d.

A rail 1g is provided at the center of the front surface of the column pressing plate 1b, and a rail 1h is provided at both ends.Rollers 1g 'provided on the frame 1a side are fitted to the rail 1g, and 1h' is fitted to the rail 1h. The column pressing plate 1b is guided with respect to the frame 1a so as to move up and down as indicated by arrows.

On the rear surface of the frame 1a, a squeezing arm 1i that presses the lower part of the column 30 inward is rotatably supported by a rotation fulcrum 1i ', and a roller 1j provided at one end of the squeezing arm 1i is provided on the rail. It is pulled by the elastic force of the spring 1k and is in contact with the arm operating plate 1o (a kind of cam) provided on the side of 1h. At the other end of the squeezing arm 1i, a strut narrowing material 1m and a strut separation plate 1n are provided on the strut narrowing material 1m, and the strut 30 is squeezed.

The support | carrier conveyance part 2 is supported by the frame 2a provided orthogonally to the frame 1a, and is comprised as follows.
That is, a column guide 2a is arranged on the upper part and members 2b are arranged on both sides as members for guiding the arc-shaped portion 30a of the column 30, and a column guide 2c is provided in parallel above the column guide 2a. The support guide 2c is fixed to a guide release tool 2d supported on the top of the frame 1a so as to be able to be raised and lowered.When the support 30 is replenished, the support guide 2c is rotated as shown by an arrow to rotate the support guide 2a. Open the top.

2e is a column guide that supports the lower end of the column 30, the cross section of which is formed in a gutter shape, and preferably, the outer plate rotates as shown by the arrow to open the guide surface, thereby lowering the lower end of the column 30. It is also possible to make it easier to insert. Further, the support guide
Above 2a, a column guide 2f for guiding the outer surface of the linear portion of the column 30 is provided.

Further, a rail 2g is provided below the column guide 2a and between 2b and 2b, and guides the column pusher 2h fitted to the rail 2g. A rope hook 2i is provided above a slide portion 2h 'of the support pusher 2h which is fitted to the rail 2g,
One end of the rope 2j is fixed to this, this rope 2j is a pulley 2k
The weight 2m is connected to a hook 2r provided on the weight 2m via a frame, and the weight 2m is guided into a cylindrical weight guide 2n provided on the front surface of the frame 1a. A weight stopper 2p is located below the weight guide 2n.
It is closed to prevent the weight 2m from falling. The support 2g is supported in the middle by a frame 2q.

Further, a column holding guide 2s is provided at the tip of the column guide 2a so that the column 30 pressed and lowered by the column pressing plate 1b is held on the surface of the column pressing plate 1b.

The film covering part 3 is connected to the rear part of the frame 2q whose front end is fixed to the frame 1a, the groove notches 3a are arranged on both sides of the fuselage, and the film roll 3c is supported on the frame 3b and is fed out from the film roll 3c. The film f is developed and transported by the roll 3d. Further, a film pressing wheel 3e and a mud pulling wheel 3f are provided on both sides of the column 30 driven into the field G.

A gauge wheel 4 having a wheel 4a supported at the tip of a positioning member 4b is fixed to the lower end of the frame 1a in front of the strut driving portion 1.

The tunnel-like film stretching apparatus having the above-described structure is pulled by connecting the machine body to a lift cylinder of a hydraulic elevating mechanism via a work machine connecting link mechanism of a tractor (not shown) so as to be able to move up and down freely.

In this state, the device is tilted so that the frame 1a is tilted rearward at the angle α as a whole (see the tilt angle between the frame 2q and the field G). The support 30 is guided toward the support pressing plate 1b in a state where the support 30 is inclined forward with an angle β by various guides.

When using this device, the film coating unit 3
Attach the film roll 3c. Then, the support guide 2c of the support transport unit 2 is retracted from a predetermined position by operating the guide release tool 2d to support the support 30 on the support guide 2a. Then, the support guide 2c is returned to the original position, and the support guide 2c is returned. 2c and
A plurality of columns 30 are supplied in a state where the top of the column 30 is sandwiched between the column 2a and the arc portion is supported on the column guide 2b, and the end is inserted into the column guide 2e. Then, a column pushing tool 2h is arranged at the last part of the column 30, and
The other end of the rope 2j having the weight 2m attached to one end is attached to the rope hook 2i protruding from the upper part of 2h.

The rail 2g that guides the support pusher 2h is the guide 2a, 2c.
The rope 2j is stretched almost along this inclination, and the strut pusher 2h can apply a uniform pressing force to the strut 30 up to the forefront. I have.

When pressure oil is supplied to the hydraulic cylinder 1c from the hydraulic mechanism of the tractor via the hydraulic pipe 1c 'to the hydraulic cylinder 1c and the column pressing plate 1b is raised, the column 30 located at the forefront of the column transport unit 2 has an arc shape. It is fitted into the lower part of the column pressing plate 1d formed in an arc shape. And the lower part of this column 30
1m, coming off the guide 2e while being supported by the support separation plate 1m.

As the column pressing plate 1b descends, the arm 1i is pressed by the contact surfaces of the arm operating plates 1o provided on both sides of the column pressing plate 1b, rotates leftward, and one column is provided by the column separating plate 1n provided at the tip of the arm 1i. The lower end of the column 30 is separated from the other column group, and the distance between both ends of the column is reduced by the column squeezing material 1m by the lift of the arm operating plate 1o.

The strut 30 whose distance between both ends is narrowed as described above is driven into the field G together with the downward movement of the strut pressing plate 1b.

The striking operation of the strut 30 is performed during traveling of the tractor. However, since the frame 1a is inclined backward with respect to the surface of the field G as shown in FIG. Therefore, while standing up, it is finally driven by a predetermined depth substantially perpendicular to the field G.

Subsequent to the driving operation of the column 30, the film covering portion 3
With the movement, the groove is dug at a position near both edges of the tunnel-like film f by the slicer 3a. The film f fed from the film roll 3c is a film pressing ring.
3e, the both sides are moved while being stepped on, and the stepped portion is covered with a mudguard ring 3f to complete a tunnel-shaped film supported by the column 30.

In addition, as shown in FIG.
And the back is inclined so as to be away from the field G, so that the support 30 driven by the support driving unit 1
Since the work progresses in a state where the space portion gradually expands, it is necessary to accurately strike without falling down, tilting, or falling out of contact with the members constituting the column transport portion 2 Can be. Further, even if the width of the airframe is narrow, the struck struts are not defeated, so that a downsized device can be provided.

[Effects of the Invention] As described above, the present invention places the strut pressing plate, which constitutes the main part of the strut driving portion, on the rear side of the frame that is inclined in the direction opposite to the traveling direction of the body. Arranged in parallel with the frame, and further provided, behind the column pressing plate, a column holding guide parallel to the column pressing plate that holds the column being driven by the column pressing plate, and the column pressing plate On the back side of the strut, a strut narrowing part that narrows the distance between both ends of the strut during the striking operation by the strut pressing plate is provided, so that the strut enters the field in a state inclined backward, but is pulled as the aircraft advances. It is accurately driven into the field while being woken up. At this time, since the both ends of the column are held by the column narrowing portion, the column is driven into substantially the same width.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a side view of a tunnel-like film stretching apparatus, and FIG. 2 is a front view showing a main part of a strut driving part viewed from a strut conveying part side. . 1… Pole driving section 1a… Frame, 1b… Post pressing plate, 1c… Punching hydraulic cylinder, 1e… Post holding spring, 1f… Post pressing guide, 1g …… Rail, 1g '… … Roller, 1h …… Rail, 1h ′… Roller, 1i …… Narrow squeezing arm, 1i ′
…… Roller, 1j …… Spring, 1k …… Spring, 1m
… Narrow squeezed material for columns, 1n… Column separation plate, 2… Column transport section 2a, 2b, 2c, 2e, 2f… Column guide, 2d… Guide release tool, 2g… Rail, 2h… Column Extruder, 2i …… Rope hook, 2j …… Rope, 2k …… Pulley,
2m… weight for column extrusion, 2n… weight guide,
2p ... weight stopper, 2r ... hook, 2s ... post holding guide, 3 ... film covering part 3a ... grooving tool, 3c ... film roll, 3d ... film feeding roll, 3e ... film pressing ring , 3f …… Mud ring.

Claims (1)

(57) [Claims] 1. A strut driving portion for driving both ends of an inverted U-shaped strut into a field, a strut conveying portion for supplying a strut to the strut driving portion from behind, and a strut moving portion positioned behind the strut conveying portion. A tunnel-like film stretching apparatus comprising a film covering portion covering the both ends thereof while covering a film pulled out of a film roll onto a field, and constituting a main part of the column driving portion The strut pressing plate is disposed in parallel with the frame on the back side of the frame that is inclined in the direction opposite to the traveling direction of the body, and further, behind the strut pressing plate, driving by the strut pressing plate A column narrowing portion that arranges a column holding guide parallel to a column pressing plate that holds a column being worked, and narrows a distance between both ends of the column during driving by the column pressing plate on the back side of the column pressing plate. Tunneled film upholstery Apparatus.