JP5430471B2 - Cocoon forming machine - Google Patents

Description

  The present invention relates to a wrinkle forming machine that repairs old wrinkles to form new wrinkles.

  Conventionally, it has a banking part and a ridge forming part, and the bank is driven to raise the soil on the old paddle, and the paddle forming part is driven to compact the bank from above, thereby forming a new paddle on the old paddle. A forming machine is known (for example, Patent Document 1).

  The lid coater 1 described in Patent Document 1 includes a first buffer mechanism 81 that receives a force (impact) acting on the heaven field processing unit 50 that breaks the upper part (heaven field) of the old ridge K with a certain elastic force. A support member 82 and a second support member 84 that is adjustable in length with respect to the first support member 82 are provided. And in patent document 1, if only the length adjustment of the 2nd support member 84 is performed without adjusting the buffer function of the elastic body (compression spring 81a) with which the 1st support member 82 is equipped, various heights will be provided. It is said that the heaven field processing unit 50 can arrange the old turret K's heaven field.

Japanese Patent Laying-Open No. 2006-304615 (paragraph 0029, FIG. 4)

  In general, the wrinkle forming section provided in the wrinkle forming machine has a disc shape (polyhedral drum 73 as referred to in Patent Document 1) forming a truncated cone shape and a cylindrical shape, and a frustum having a disc shape. And a cylindrical portion (cylindrical portion 75 as referred to in Patent Document 1) that protrudes from the front end side of the ridge and forms the upper surface of the shinden. In recent years, a wrinkle forming machine has been developed in which the cylindrical part can be attached to and detached from the disk part, and the cylindrical part can be attached to the disk part so that it can easily cope with new heights of various heights. It is coming.

  Here, in the plastering machine 1 described in Patent Document 1, in order to adjust the position of the heaven processing unit 50, the second support member 84 is inserted into the cylindrical first support member 82, and the first support member is inserted. The insertion hole 82a provided in 82 is aligned with one of the plurality of length adjustment holes 84a formed in the second support member 84, and the connecting pin 86 is connected to the length adjustment hole 84a and the insertion hole 82a. Wear. However, the weight of the heaven processing unit 50 is large, and it is great for the operator to move the first support member 82 and the second support member 84 connected thereto to align the adjustment hole 84a and the insertion hole 82a. It becomes a burden.

  The present invention has been made in view of the above points, and an object of the present invention is to simplify handling of a ridge forming machine for forming the upper surface of ridges having various heights.

  A scissor forming machine according to claim 1 of the present invention includes a machine frame and a soil cutting part that is provided on the machine frame and scrapes an upper surface of an old paddle, and the soil cutting part is rotatable with respect to the machine frame. A first frame coupled to the first frame, a second frame concentric with the pivot shaft of the first frame and pivotally coupled to the machine frame or the first frame, and a pivoting tip side of the second frame A grounding rotor that cuts the upper surface of the old hammer, a telescopic position adjustment section that spans between the machine frame and the first frame, and spans between the first frame and the second frame. A connecting portion; and an elastic portion that is provided in the connecting portion and pushes the first frame and the second frame away from each other.

  A wrinkle forming machine according to a second aspect of the present invention is the wrinkle forming machine according to the first aspect, wherein the connecting portion is rotatably connected to the second frame and is slidably held by the first frame. And the elastic portion is a spring attached to the connecting rod, and further includes a holding position adjusting member attached to the connecting rod, the first frame, the spring, and the holding position adjusting member. And a retaining portion for retaining the connecting rod from the connecting rod.

  According to the present invention, it is possible to move the earthing rotor up and down without changing the ability of absorbing the shock received by the earthing rotor from the upper surface of the old ridge, and thus to form the upper surface of the ridge having various heights. Handling of the ridge forming machine can be simplified.

It is a top view of a wrinkle forming machine. It is a side view of a wrinkle forming machine. It is a side view of the ridge forming machine of the state where it replaced with the small diameter cylindrical part and attached the large diameter cylindrical part. It is a side view of the dredging upper surface earthing device. It is side surface sectional drawing of the dredging upper surface earthing apparatus. It is a side view of a connecting rod. It is a side view of a connecting rod in a state where a holding position adjusting member (collar) is mounted below the rod holding portion.

  One embodiment will be described with reference to FIGS. FIG. 1 is a plan view of the ridge forming machine 101. In FIG. 1, a part of the ridge forming machine 101 is shown broken. The ridge forming machine 101 is used by being connected to the rear of the tractor 501 (traveling machine). The tractor 501 travels along the inclined surface 303 of the kite 301 on the ground 302 on which the kite 301 is provided. Hereinafter, the traveling direction front side (right side in FIG. 1) of the tractor 501 may be simply referred to as “traveling direction front side”. Further, the rear side in the running direction of the tractor 501 (the left side in FIG. 1) may be simply referred to as “the rear side in the running direction”.

  The ridge forming machine 101 includes a machine frame 102. The machine casing 102 includes a mounting frame 103, a first connection frame 109, and a second connection frame 110. The mounting frame 103 is provided at an end portion on the front side in the traveling direction of the ridge forming machine 101 and is connected to the rear of the tractor 501. The mounting frame 103 includes a top bracket 104 and lower pins 105 and 106 connected to the three-point link mechanism 502 of the tractor 501. Further, the mounting frame 103 has a first shaft 107 extending substantially in the vertical direction on the rear side in the traveling direction.

  The first connection frame 109 is attached to the mounting frame 103 via the first shaft 107 and is rotatable around the first shaft 107 in a horizontal plane. The second connection frame 110 is attached to the first connection frame 109 via a second shaft 111 extending in a substantially vertical direction, and is rotatable in a horizontal plane around the second shaft 111. Here, the mounting frame 103 and the first connection frame 109 are connected by a first cylinder 112 that can be expanded and contracted. Further, the first connection frame 109 and the second connection frame 110 are connected by a second cylinder 113 that can be extended and contracted. Further, the mounting frame 103 and the second connection frame 110 are connected by a flexible link mechanism 103a. As a result, the second connecting frame 110 is directed in a direction orthogonal to the traveling direction of the tractor 501, and the offset amount of the working unit 121 (to be described below) relative to the tractor 501 toward the traveling direction side is adjusted. .

  FIG. 2 is a side view of the ridge forming machine 101. In FIG. 2, the upper cover 155, the gauge wheel 161, the handle 162, and the adjustment rod 163 are omitted. Hereinafter, a description will be given with reference to FIGS. 1 and 2. The wrinkle forming machine 101 includes a working unit 121. The working unit 121 is located on the rear side and the side in the traveling direction of the tractor 501, and includes a ridge forming device 131, a banking device 141, a ridge top surface cutting device 151 as a cutting portion, and a gauge ring 161.

  The ridge forming apparatus 131 is attached to the end of the machine casing 102 on the rear side in the traveling direction. The wrinkle forming device 131 includes a wrinkle forming device rotating shaft 132, a disk portion 133, a small diameter cylindrical portion 134, a cover 135, a movable case 136, an adjustment rod 137, and a handle 138. The heel-forming device rotating shaft 132 is located behind the second connecting frame 110 in the traveling direction, extends from a movable case 136 (described later), extends horizontally perpendicular to the traveling direction, and is rotatable around the axis. It has become. The disk portion 133 has a truncated cone shape and is attached to the ridge forming device rotating shaft 132. A plurality of metal plates are attached to the surface of the disk portion 133. The tip side of the truncated cone of the disk portion 133 is directed to the inclined surface 303 of the flange 301. The small-diameter cylindrical portion 134 has a cylindrical shape and is detachably attached to the distal end side of the truncated cone of the disk portion 133. When the reed forming device rotating shaft 132 rotates, the disk unit 133 compacts the soil raised on the reed 301 by the embankment device 141 (described later) or the reed upper surface cutting device 151 (described later), and the inclined surface of the new reed 305 306 is formed. Further, when the reed forming device rotating shaft 132 rotates, the small-diameter cylindrical portion 134 compacts the soil raised on the reed 301 by the embankment device 141 (described later) or the reed upper surface soil removal device 151 (described later), and the new reed 305 The upper surface 307 is formed. The cover 135 is located above the disk unit 133 and prevents an operator from contacting the disk unit 133.

  The movable case 136 is contained in a power transmission unit 116 (described later) and houses a drive chain and the like that transmits a driving force from the input shaft 114 and connects the heel forming device rotating shaft 132 and the support shaft 139. Here, the support shaft 139 is a long member that forms a part of the second connection frame 110 and extends in a direction orthogonal to the traveling direction of the rod forming machine 101. The movable case 136 is rotatable in the direction around the axis of the support shaft 139. For this reason, the wrinkle forming device 131 can be displaced up and down.

  The adjustment rod 137 is expanded and contracted to a desired length by turning the handle 138. As an example, the adjustment rod 137 is configured by screwing a male screw rod that forms a male screw portion at an end thereof and a female screw rod that has a female screw hole opened at an end surface. One end of the adjustment rod 137 is connected to the second connection frame 110. Further, the other end of the adjustment rod 137 is connected to the movable case 136 on the rear side in the traveling direction with respect to the rod forming apparatus rotating shaft 132. The handle 138 protrudes rearward in the traveling direction from the other end of the adjustment rod 137.

  The embankment device 141 is located on the front side in the traveling direction with respect to the ridge forming device 131. The embankment device 141 includes an embankment device rotating shaft 142, a plurality of excavation blades 143, a cover 144, and a fixed case 145. The embankment device rotating shaft 142 extends in parallel with the ridge forming device rotating shaft 132, extends from a fixed case 145 (described later), is positioned forward of the second connecting frame 110 in the traveling direction, and is rotatable around its axis. It has become. The excavation blade 143 extends by radiating from the banking device rotating shaft 142, and the tip thereof is bent toward the inclined surface 303 side of the trough 301. When the earthing device rotating shaft 142 is rotated, the excavating blade 143 excavates the inclined surface 303 of the excavated gutter 301 and the ground 302 in the vicinity thereof, and the excavated soil is scattered on the inclined surface 303 of the eaves 301 and the upper surface 304 of the eaves 301. Let The cover 144 is installed above the excavating blade 143 and prevents the soil from being scattered by the excavating blade 143 and guides it to the fence 301 or prevents an operator from contacting the excavating blade 143.

  The fixed case 145 is long and extends downward from the support shaft 139 and forward in the running direction, and accommodates therein a drive chain and the like that is included in a power transmission unit 116 (described later) and transmits a driving force from the input shaft 114. . The fixed case 145 is fixed to the support shaft 139 and does not rotate in the direction around the support shaft 139. A banking device rotating shaft 142 is attached to the tip of the fixed case 145. The embankment rotating shaft 142 is rotatable around its own axis.

  The dredge top surface cutting device 151 is attached to the second connecting frame 110 and is positioned between the dredger forming device 131 and the embankment device 141, and includes a plurality of excavating blades 154a. The upper surface 304 is shaved. The saddle top surface cutting device 151 will be described later with reference to FIGS. 4 and 5.

  The ridge forming machine 101 includes an input shaft 114. The input shaft 114 is connected to a PTO shaft (not shown) provided in the tractor 501. The driving force from the tractor 501 is input to the input shaft 114. The input shaft 114 is provided with a ridge forming device 131, a banking device 141, and a power transmission unit 116 including a universal joint 115, a bevel gear (not shown), a sprocket (not shown), a chain (not shown), and the like. It is connected with each of the dredging upper surface earth cutting device 151. When a driving force is input to the input shaft 114, the driving force is applied to the heel forming device rotating shaft 132 of the hoe forming device 131, the embankment device rotating shaft 142 of the embankment device 141, and the heel upper surface cutting of the hoe upper surface earthing device 151. It is transmitted to the earth device rotating shaft 152. Accordingly, the disk portion 133 and the small-diameter cylindrical portion 134 of the dredger forming device 131, the excavating blade 143 of the embankment device 141, and the excavating blade 154a of the dredge upper surface earthing device 151 rotate in a clockwise direction in FIG. . At this time, the disk portion 133 and the small-diameter cylindrical portion 134 of the dredger forming device 131, the excavating blade 143 of the embankment device 141, and the excavating blade 154 a of the dredge upper surface earthing device 151 have a desired rotational speed ratio depending on the configuration of the power transmission unit 116. It is set in advance to make.

  The gauge ring 161 is a metal conical plate, and is disposed in the vicinity of the heel forming apparatus 131 on the opposite side to the ridge 301 in the heel forming apparatus 131. The gauge wheel 161 has the same structure as the adjustment rod 137 and is attached to the movable case 136. By operating the long adjustment rod 163 that can be expanded and contracted to a desired length by turning the handle 162, the hook forming device 131 is operated. Is displaced up and down. Then, the height of the ridge forming device 131 relative to the ground 302 is adjusted by the outer peripheral portion of the gauge wheel 161 being inserted into the ground 302. Further, the gauge wheel 161 receives the molding pressure from the rod 301 and maintains the straightness of traveling of the rod forming machine 101 pulled by the tractor 501.

  FIG. 3 is a side view of the ridge forming machine 101 with the large-diameter cylindrical portion 134a attached in place of the small-diameter cylindrical portion 134. FIG. In FIG. 3, the upper cover 155, the gauge wheel 161, the handle 162, and the adjustment rod 163 are omitted. Hereinafter, a description will be given with reference to FIGS. As described above, in the wrinkle forming apparatus 131, the small diameter cylindrical portion 134 is attached to the distal end side of the truncated cone of the disk portion 133 and is detachable from the disk portion 133. Therefore, as shown in FIG. 3, a large-diameter cylindrical portion 134 a having a diameter larger than that of the small-diameter cylindrical portion 134 can be attached to the tip side of the truncated cone of the disk portion 133. For this reason, in this embodiment, it is not necessary to operate the handle 138, and the new diameter to be newly formed can be formed by replacing the small diameter cylindrical portion 134 and the large diameter cylindrical portion 134a with respect to the disk portion 133. Two-stage switching of the height h of the upper surface 307 of 305 can be easily performed. In the present embodiment, the dredge upper surface cutting device 151 can easily perform two-stage switching of the height position of the lower end of the excavation blade 154a of the dredging upper surface cutting device 151, and the large diameter cylindrical portion 134 and the large diameter circular portion 134 The height h of the upper surface 307 of the new punch 305 set by the replacement with the diameter cylindrical portion 134a can be quickly dealt with.

  FIG. 4 is a side view of the saddle surface top cutting device 151. FIG. 5 is a side cross-sectional view of the saddle top surface cutting device 151. In FIGS. 4 and 5, the upper cover 155 is omitted. With reference to FIG. 1, FIG. 4 and FIG. The dredging upper surface earth cutting device 151 includes a dredging upper surface earthing device rotating shaft 152, a first frame 153a, a second frame 153b, a earth cutting rotor 154, an upper cover 155, and an adjustment rod 158 as a position adjusting unit. The adjusting rod handle 158d and a connecting rod 159 as a connecting portion are provided. The dredge upper surface earthing device rotating shaft 152 extends in parallel with the dredging device rotating shaft 132 and is rotatable around the axis. A clutch portion 152a is provided in the middle of the dredge upper surface earthing device rotation shaft 152 so that transmission of driving force from the input shaft 114 to the dredge upper surface earthing device 151 and switching of cutting can be performed.

  The first frame 153a is attached to the second connection frame 110 via a support shaft 139, and is rotatable in the direction around the support shaft 139. The first frame 153a forms a first protrusion 153aa for rotatably connecting with the adjustment rod 158 and a second protrusion 153ab for rotatably connecting with the connecting rod 159. Both the first protrusion 153aa and the second protrusion 153ab protrude upward from the first frame 153a. When the first frame 153a rotates in the direction around the axis of the support shaft 139, the first protrusion 153aa and the second protrusion 153ab rotate with this movement.

  The second frame 153b is attached to the second connecting frame 110 via a second support shaft 139a provided concentrically with the support shaft 139 on the first frame 153a side, and rotates around the axis of the second support shaft 139a. It is free to move. That is, in side view, both the first frame 153a and the second frame 153b rotate with the support shaft 139 as a rotation axis. The second frame 153b is formed in a long case shape, and houses a drive chain and the like that is included in the power transmission unit 116 and that transmits the driving force from the input shaft 114 to the excavation blade mounting shaft 154b (described later). To do. In addition, a third protrusion 153ba is formed on the distal end side of the second frame 153b so as to be pivotably connected to the connecting rod 159. The third protrusion 153ba protrudes upward from the second frame 153b.

  The earth cutting rotor 154 is provided on the rotating front end side of the second frame 153b, and has a plurality of excavation blades 154a and an excavation blade attachment shaft 154b. The excavation blade mounting shaft 154 b is provided in parallel with the dredging surface earth removal device rotation shaft 152. Then, when the dredging top surface earthing device rotating shaft 152 rotates around its axis by the driving force from the input shaft 114, the rotating force is transmitted to the excavating blade mounting shaft 154b by the driving chain or the like in the second frame 153b, The excavation blade mounting shaft 154b rotates in the direction around the axis. The excavation blade 154a extends radially from the excavation blade mounting shaft 154b, and its tip is bent. When the dredge upper surface earthing device rotation shaft 152 rotates, the excavation blade mounting shaft 154b rotates, and the excavation blade 154a excavates the upper surface 304 of the dredge 301.

  The upper cover 155 is installed above the excavation blade 154a. The upper cover 155 prevents soil from being scattered by the excavation blade 154a and prevents the operator from coming into contact with the excavation blade 154a.

  The adjustment rod 158 has the same structure as that of the adjustment rod 137 provided in the ridge forming device 131, and is hung on the second connection frame 110 constituting the machine casing 102 and the first frame 153a constituting the ridge upper surface soil removal device 151. Passed. More specifically, the adjustment rod 158 is configured by screwing a male screw rod 158a having a male screw portion 158aa at an end thereof and a female screw rod 158c having a female screw hole 158b opened at an end surface thereof. An end portion of the female screw rod 158c is rotatably connected to the first protrusion 153aa. An end portion of the male screw rod 158a is rotatably connected to the second connection frame 110. The male screw rod 158a extends upward from the male screw rod 158a. When the operator turns the male screw rod 158a, the male screw rod 158a slides in the axial direction with respect to the female screw rod 158c, and the length of the adjustment rod 158 is expanded and contracted.

  FIG. 6 is a side view of the connecting rod 159. FIG. 6 is a partially broken view of the connecting rod 159. The connecting rod 159 is bridged between the first frame 153a and the second frame 153b. The connecting rod 159 is a long rod having a circular cross section. A plurality of through holes 159 b arranged in the length direction of the connecting rod 159 are provided in one first end 159 a of the connecting rod 159. And the compression force of the spring 159d changes by inserting the pin body 159c in one of these through-holes 159b. The pin body 159c is detachable, and the biasing force of the spring 159d can be adjusted by selecting the through hole 159b through which the pin body 159c is inserted. That is, the pressing force of the earth cutting rotor 154 is adjusted.

  A rod holding portion 153ac is provided on the second protrusion 153ab formed on the first frame 153a. The rod holding portion 153ac has a short cylindrical shape through which the connecting rod 159 can be inserted. The connecting rod 159 is inserted through the rod holding portion 153ac, and the first frame 153a holds the connecting rod 159 in a slidable manner.

  A spring 159d as an elastic part is attached to the connecting rod 159. The spring 159d is disposed between the rod holding part 153ac and the third protrusion 153ba. A washer (not shown) that receives the end of the spring 159d is disposed between the spring 159d and the rod holding portion 153ac and between the spring 159d and the pin body 159c. The spring 159d pushes the first frame 153a and the second frame 153b away from each other.

  A collar 159e as a holding position adjusting member is also attached to the connecting rod 159. The collar 159e has a cylindrical shape. The length of the collar 159e is determined by the vertical position switching dimension of the earth cutting rotor 154. The collar 159e attached to the connecting rod 159 is slidable with respect to the connecting rod 159.

  A retaining portion 159g is provided at the second end 159f of the connecting rod 159 opposite to the first end 159a. The retaining portion 159g includes a retaining hole 159h that passes through the second end 159f of the connecting rod 159 in a direction perpendicular to the axis, and a retaining pin 159i that is inserted into the retaining hole 159h. The retaining pin 159i is inserted into the retaining hole 159h in a state where the spring 159d, the rod holding portion 153ac of the first frame 153a, and the collar 159e are attached to the connecting rod 159, and prevents them from falling off the connecting rod 159.

  Please refer to FIG. 1, FIG. 2 and FIG. When forming the new basket 305 by arranging the basket 301 using the basket forming machine 101 configured as described above, when the operator operates the adjustment rod handle 158d, the adjustment rod 158 expands and contracts, and the first frame 153a. Rotates about the axis of the support shaft 139, and the earth cutting rotor 154 is displaced up and down. At this time, the first protrusion 153aa and the second protrusion 153ab formed on the first frame 153a move along with the rotation of the first frame 153a, and the second frame 153b connected by the connecting rod 159 also rotates and scrapes. The earth rotor 154 is moved up and down to adjust the pressing force of the earth cutting rotor 154 against the upper surface 304 of the rod 301. Here, an angular range of rotation of the second frame 153b by an operation on the adjustment rod 158 is A (see FIGS. 6 and 7).

  Please refer to FIG. 2, FIG. 3 and FIG. Furthermore, the ridge forming machine 101 according to the present embodiment can mount a cylindrical portion (small diameter cylindrical portion 134 or large diameter cylindrical portion 134a) on the disk portion 133 according to the height of the upper surface 304 of the new ridge 305 to be formed. It can be done. At this time, the operator can finely adjust the height position of the disk portion 133 and the cylindrical portion (the small diameter cylindrical portion 134 or the large diameter cylindrical portion 134a) of the heel forming apparatus 131 by operating the handle 138. And with this operation | work, an operator sets the height of the lower end of the excavation blade 154a of the dredging upper surface cutting-off apparatus 151 as follows.

  The height setting of the lower end of the excavation blade 154a of the dredging upper surface earthing device 151 will be described. The operator inserts the pin body 159c into one through hole 159b selected from the plurality of through holes 159b in advance. Subsequently, the worker attaches a washer (not shown) from above the connecting rod 159, then attaches the spring 159d, and causes the pin body 159c to receive the lower end portion of the spring 159d via the washer.

  Here, consider the case where the small-diameter cylindrical portion 134 is mounted on the disk portion 133 (see FIG. 2). In this case, the operator inserts the connecting rod 159 into the rod holding portion 153ac, then attaches the collar 159e to the connecting rod 159, and inserts the retaining pin 159i into the retaining hole 159h.

  FIG. 7 is a side view of the connecting rod 159 with the holding position adjusting member (collar 159e) mounted below the rod holding portion 153ac. Consider the case where the large-diameter cylindrical portion 134a is mounted on the disk portion 133 (see FIG. 3). In this case, after attaching the spring 159d from above the connecting rod 159, the operator attaches the collar 159e to the connecting rod 159, and then inserts the connecting rod 159 into the rod holding portion 153ac to prevent the retaining pin 159i from being removed. It passes through the hole 159h (see FIG. 6).

  Please refer to FIG. 6 and FIG. When the small diameter cylindrical portion 134 attached to the disk portion 133 is switched to the large diameter cylindrical portion 134a, the operator removes the retaining pin 159i from the retaining hole 159h and removes the collar 159e and the rod holding portion 153ac from the connecting rod 159. . Subsequently, the operator attaches the collar 159e to the connecting rod 159, then attaches the rod holding portion 153ac, and inserts the retaining pin 159i into the retaining hole 159h. Thereby, the second frame 153b rotates downward by an angle B (FIG. 6 → FIG. 7).

  That is, when switching between the small-diameter cylindrical portion 134 and the large-diameter cylindrical portion 134a, the height position of the earthing rotor 154 is greatly changed at once by simply changing the mounting procedure of the collar 159e with respect to the connecting rod 159. Thus, it is possible to easily cope with the height position of the upper surface 307 of the new bag 305. At this time, even if the mounting procedure of the collar 159e and the rod holding portion 153ac to the connecting rod 159 is changed, the length of the spring 159d does not change. Therefore, the shock absorbing performance that the earth cutting rotor 154 receives from the upper surface 304 of the rod 301 is improved. does not change. Thereafter, the operator can finely adjust the urging force of the spring 159d by operating the adjustment rod 158.

  As described above, according to the wrinkle forming machine 101 of the present embodiment, the collar 159e and the rod holding portion are changed according to the two-step switching of the cylindrical portion (small diameter cylindrical portion 134 or large diameter cylindrical portion 134a) to be mounted on the disk portion 133. Only by changing the mounting procedure with 153ac, the height position of the earthing rotor 154 can be switched in two steps without changing the ability of absorbing the shock received by the earthing rotor 154 from the upper surface 304 of the rod 301.

  The operator sets the height of the upper surface 307 of the new rod 305 to be formed by setting the rod forming device 131 and the rod upper surface cutting device 151 in this way, and then rides on the tractor 501 along the rod 301. Then, the embankment device 141 and the top surface shaving device 151 are driven to deposit soil on the trough 301, and the trough forming device 131 is driven to form a new trough 305. At this time, the disk portion 133 forms the inclined surface 306 of the new tub 305, and the cylindrical portion (small diameter cylindrical portion 134 or large diameter cylindrical portion 134 a) forms the upper surface 307 of the new tub 305.

101 Wrinkling machine 102 Machine frame 139 Support shaft (rotating shaft)
151 畦 Upper surface soil removal device (Soil removal part)
153a First frame 153b Second frame 154 Soil cutting rotor 158 Adjustment rod (position adjustment unit)
159 Connecting rod (connecting part)
159d Spring (elastic part)
159e Color (holding position adjustment member)
159g Stopper part 301 畦 (old 畦)
303 Upper surface (upper surface of the old fence)

Claims (2)

The machine frame,
A shaving part provided on the machine frame for scraping the upper surface of the old fence;
With
The cutting portion is
A first frame rotatably connected to the machine frame;
A second frame concentrically with the pivot axis of the first frame and pivotally connected to the machine frame or the first frame;
A earthing rotor provided on a rotating front end side of the second frame and for scraping an upper surface of the old iron;
A telescopic position adjustment section spanned between the machine frame and the first frame;
A connecting portion that spans between the first frame and the second frame;
An elastic part that is provided in the connecting part and that pushes the first frame and the second frame away from each other;
Including cocoon forming machine. The connecting portion is a connecting rod rotatably connected to the second frame and slidably held by the first frame;
The elastic part is a spring attached to the connecting rod;
A holding position adjusting member attached to the connecting rod;
A stopper for preventing the first frame, the spring, and the holding position adjusting member from coming off from the connecting rod;
The wrinkle forming machine according to claim 1.

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