JP2015154733A - Ridge forming machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable enhancement of workability in ridge formation by allowing the size of a ridge top former to be changed to conform to a low ridge and a high ridge, thereby eliminating the need to prepare two types of rotating ridge formers or two types of ridge top formers corresponding to the low and high ridges.

SOLUTION: A rotating ridge former 13 comprises a ridge side former 15 capable of forming one side face W₂ of a ridge W; and a ridge top former 16 capable of forming a top face W₁ of the ridge. The circumference of the ridge top former is provided with a plurality of pressing faces K, ... disposed at intervals. Each of the pressing faces is provided with a flexible and elastic pressing plate G extending from a pressing face side in a front position in a rotation direction toward a pressing face part K₁ of an adjacent pressing face in a rear position. A size change mechanism 18 allows a size change operation in a radial direction of each of the pressing plates and can fix the position of the pressing plate at an enlarged diameter position G_A and a reduced diameter position G_C.

COPYRIGHT: (C)2015,JPO&INPIT

Description

  The present invention relates to a straightening machine used for wrinkle creation work, repair work, and the like.

  Conventionally, as this kind of leveling machine, the machine frame is connected to the traveling machine body by a connecting mechanism, and the bank frame is provided with a banking mechanism for raising soil on the old fence, and the ridge surface is pressed and rotated to the rear position in the traveling direction of the banking mechanism. An adjusting mechanism having a rotating adjusting body capable of rotating adjustment is provided, and the rotating adjusting body is composed of a side surface adjusting body capable of adjusting one side surface of the surface and a top surface adjusting body capable of adjusting the upper surface of the surface. A plurality of pressing surface bodies are arranged at intervals on the outer peripheral portion of the upper surface adjusting body and the side surface adjusting body, and each of the pressing surface bodies is adjacent to the pressing surface body side in the rotational direction at the rear side. 2. Description of the Related Art There is known a structure in which a pressing plate body having flexible elasticity reaching a pressing surface portion of a pressing surface body at a position is provided.

Japanese Patent No. 4154545

  However, in the case of the above-mentioned conventional structure, in order to cope with wrinkles having different heights, two types of rotary trimming bodies or two types of top trimming bodies for high wrinkles and low wrinkles are manufactured in advance. Accordingly, it is necessary to replace the entire rotary trimming body, or at least only the top trimming body, and with the replacement of the entire rotary trimming body or the top trimming body, the trimming workability may be reduced. Has inconvenience.

  SUMMARY OF THE INVENTION The present invention aims to solve such inconveniences. Among the present inventions, the invention according to claim 1 connects a machine frame to a traveling machine body by a connection mechanism, Is provided with a leveling mechanism having a rotary leveling body capable of rotating and leveling the surface by press-fitting rotation at a rear position in the advancing direction of the banking mechanism. It is composed of a side surface adjusting body capable of adjusting the side surface and a top surface adjusting body capable of adjusting the upper surface of the collar, and a plurality of pressing surface bodies are arranged at intervals on the outer peripheral portion of the upper surface adjusting body. Each of the pressing surface bodies is provided with a flexible elastic pressing plate body extending from the pressing surface body side at the front position in the rotational direction to the pressing surface portion of the adjacent pressing surface body at the rear position. Expansion and contraction that allows the plate body to expand and contract in the radial direction and that can fix the clamping plate body at the diameter expansion position and the diameter reduction position. In Seiaze machine characterized by comprising providing the structure.

  According to a second aspect of the present invention, as the expansion / contraction mechanism, a drive shaft is disposed on the rotational axis of the upper surface trimming body, and a fixed cylinder is provided on the drive shaft so that the position can be fixed and moved. The cylinder is provided so as to be movable in the rotation axis direction in a rotating state, and a link mechanism is provided between the fixed cylinder and the movable cylinder and the plurality of pressing surface bodies, and According to a third aspect of the present invention, as the link mechanism, a support link is installed between the fixed cylinder and the pressing surface body, and an operation link is installed between the movable cylinder and the support link. It is characterized by this.

  As described above, according to the present invention, the traveling machine body travels along the old dredge, while the embankment rotor of the embankment mechanism continuously splashes the field mud at the shore on the old dredge. The rotary trimming body is rotated by driving the leveling mechanism and rotating, and the upper and side surfaces of the bowl can be trimmed by the rotary trimming body. The pressure-bonding surface bodies are arranged at intervals, and each of the pressure-bonding surface bodies has a flexible elasticity extending from the pressure-bonding surface body side at the front position in the rotation direction to the pressure-bonding surface portion of the pressure-bonding surface body at the rear position adjacent thereto. Since the clamping plate body is disposed, the clamping plate body gradually clamps the embankment as the rotary leveling body rotates, and the clamping surface body is strongly clamped via the clamping plate body. The clamping surface is intermittently clamped by the presence of a plurality of clamping surfaces, and the entire outer periphery of the rotary rectifying body by the presence of a plurality of clamping surfaces. The tightening pressure can be increased by reducing the tightening area as compared with the structure for tightening with the above, and the rivet can be tightened as much as that, and the pressing plate body has flexible elasticity. In addition, the pressing plate body can gradually press the embankment while bending from a flat shape, can securely press the embankment, can obtain a more robust ridge, and each pressing surface body Since the pressing plate body having flexible elasticity extending from the pressing surface body side at the front position in the rotation direction to the pressing surface portion of the pressing surface body at the rear position adjacent thereto is disposed, A space portion is formed between the face bodies, and the presence of the space portion further intermittently clamps the flange surface, so that it can be firmly tightened. Gradually tighten the embankment while bending in a curved direction It is possible to securely press the embankment, to obtain a more robust ridge, and to suppress the adhesion phenomenon of the soil to the pressing plate body, and to perform a good leveling work. In addition, there is provided an expansion / contraction mechanism that allows radial expansion / contraction operation of each of the pressing plate bodies of the upper surface trimming body and that can fix the pressing plate body at the enlarged diameter position and the reduced diameter position. , By expanding each pressing plate body in the radial direction and fixing the position to the enlarged diameter position, it is possible to arrange the ridges having a low height and reduce each pressing plate body in the radial direction. It can be fixed at the reduced diameter position, can arrange the high ridges, and resize the top adjustment body for low and high ridges. Two types of rotary adjusters and two types of top surface adjusters can be used. It is not necessary to prepare a casing, and it is not necessary to replace the entire rotating trimming body or only the top trimming body, so that the trimming workability can be improved.

  In the invention described in claim 2, as the expansion / contraction mechanism, a drive shaft is provided on the rotational axis of the upper surface trimming body, and a fixed cylinder is provided on the drive shaft so that the position can be fixed freely. In addition, the movable cylinder is provided so as to be movable in the rotation axis direction in a stationary state, and a link mechanism is provided between the fixed cylinder and the movable cylinder and the plurality of pressing surface bodies. By moving in the direction, each pressing plate body can be expanded in the radial direction to be fixed at the enlarged diameter position. In the invention according to claim 3, each pressing plate The body can be reduced in the radial direction to be fixed at the reduced diameter position, and the top surface trimming body can be easily resized for low heel height and high heel height, In addition, as the link mechanism, a support link is installed between the fixed cylinder and the pressing surface body, Since formed by bridging the operating link between the mobile barrel and the support link, it is possible to smoothly perform the scaling operation of each of the clamping plate member makes it possible to simplify the structure of the link mechanism.

1 is an overall side view of an embodiment of the present invention. It is a side view of the example of an embodiment of the invention. It is a top view of the example of an embodiment of the invention. It is a rear view of the embodiment of the present invention. It is sectional drawing after expansion of the example of embodiment of this invention. It is an enlarged side view of the embodiment of the present invention. It is an expansion side sectional view of an example of an embodiment of the invention. It is an expansion side sectional view of an example of an embodiment of the invention. It is a partial expanded side sectional view of an example of an embodiment of the invention. It is sectional drawing after expansion of the example of embodiment of this invention. It is an enlarged side view of the embodiment of the present invention. It is a description side view of the embodiment of the present invention.

  1 to 12 show an embodiment of the present invention. Reference numeral 1 denotes a traveling machine body. In this case, a tractor is used as shown in FIG. 2 connects the machine casing 3 so as to be movable up and down.

  Reference numeral 4 denotes a banking mechanism. In this case, as shown in FIGS. 2, 3, and 4, the banking rotor 5 includes a banking rotor 5, and the banking rotor 5 projects a plurality of scraping blades 5b on the outer periphery of the rotor body 5a. In addition, a mounting shaft 5c protrudes from the rotor body 5a, and a trimming machine body 6 projects from the machine frame 3 so as to cover the upper side of the embankment rotor 5 and the upper side of the ridge W. A member 6a is attached, and a main shaft 7 that is rotated by a power take-off shaft 1a provided on the traveling machine body 1 is supported on the machine frame 3, and an intermediate shaft 8 is provided on the styling machine body 6 so as to be rotatable in parallel with the saddle forming direction. The mounting shaft 5 c is connected to the intermediate shaft 8, the embankment rotor 5 is rotated through the gear train 9, the universal joint 10, the gear train 11, and the intermediate shaft 8 by the rotation of the main shaft 7, and The soil of the farm scene M is excavated with the excavation trajectory N and spun up toward the old fence W It is configured to so that.

Reference numeral 12 denotes an adjusting mechanism. In this case, as shown in FIGS. 3 and 4, the adjusting mechanism 12 includes a rotating adjusting body 13 and a rotating mechanism 14 capable of rotating and adjusting the flange surface by press-contact rotation of the outer peripheral portion. The body 13 is detachably provided with a side surface adjusting body 15 capable of adjusting one side surface W ₂ of the rod W and an upper surface adjusting body 16 capable of adjusting the upper surface W ₁ of the rod W, and the rotation axis P is set at an angle θ. The rotating adjuster 13 is forcibly rotated in the direction of the arrow in the figure around the rotation axis P by the rotation mechanism 14.

In this case, as shown in FIGS. 8 and 9, the side surface trimming body 15 includes a plurality of ring members 15a, medium-diameter ring members 15b, and small-diameter ring members 15c. The plate-shaped crosspieces 15d are welded and fixed radially at intervals, and the drive shaft 17 is disposed on the rectifying machine body 6 with the rotation axis P being obliquely upward at an angle θ. The shaft 17 is rotated through the gear train 11, and the drive shaft 17 is formed in a hexagonal shaft shape. An insertion cylinder 15 e having a hexagonal hole that can be inserted into the drive shaft 17 is arranged on the rotation axis P of the side surface trimming body 15. A plurality of, in this case, eight connecting members 15f are welded and fixed between the insertion cylinder 15e and the medium-diameter ring material 15b and the small-diameter ring material 15c, and the insertion cylinder 15e is fixed to the drive shaft 17 by a fixing pin 15g. A plurality of crosspieces 15d. .. and formed on the outer peripheral portion of the side surface trimming body 15 with a plurality of pressing surface bodies K, K,... Spaced apart and the outer surfaces of the pressing surface bodies K, K,. a surface portion K _1, pressing plate member having a flexible elastic leading to clamping surface K ₁ of clamping tetrahedron K of a rear position adjacent the clamping tetrahedra K side in the rotation direction forward position in each of the clamping face piece K G It becomes attached, between adjacent clamping face piece K · K to space R is formed in which the mounting member K ₂ made from bolts and nuts.

Further, in this case, as shown in FIGS. 6, 7, and 10, the upper surface trimming body 16 has a plurality of pressing surface bodies K, K,. the clamping plate member G having a flexible elastic leading to clamping surface K ₁ of clamping tetrahedron K of a rear position adjacent the clamping tetrahedra K side in the rotation direction forward position in each of the clamping face piece K · K · · arranged to, each of the clamping plate member G · G · · of radial expanded position clamping plate member G together to allow scaling operation G _a and contracted position G _C in position fixable decreasing mechanism 18 Is provided.

In this case, as the expansion / contraction mechanism 18, as shown in FIGS. 6, 7, and 10, the drive shaft 17 is disposed on the rotation axis P of the top surface adjusting body 16, and the drive shaft 17 is fixed with a hexagonal hole. The cylinder 19 is provided so that the position can be freely fixed in the rotation state, and the movable cylinder 20 is provided so as to be movable in the direction of the rotation axis P in the rotation state, so that the fixed cylinder 19 and the movement cylinder 20 and the plurality of pressing surface bodies K, K, In this case, as the link mechanism 21, a pair of support pieces 19a and 19a are provided at the front and rear positions of the outer peripheral surface of the fixed cylinder 19, as shown in FIGS. A plurality of pairs, in this case, a total of 16 pairs projecting to the front and rear 8 pairs, and the lower end portions of the pair of front and rear support links 21a and 21a in the opposing gaps of the pair of support pieces 19a and 19a directed to the front and rear 8 pairs The lower support pins 21b and 21b are used to mount a plurality of sets, in this case, 8 Facepiece K is formed by bending the attachment portion _{K 3} and clamping surface _{K 1} to L shape, pressing tetrahedral K · K · by the upper support pins 21c · 21c the upper end of the pair of front and rear support link 21a · 21a pivotally attached to the attachment portion K ₃ of &, clamping surface of the clamping face piece K of a rear position adjacent the clamping tetrahedra K side in the rotation direction forward position in clamping surface K ₁ of each of the clamping face piece K K ₁ A clamping plate G having flexible elasticity to the position is attached by means of a mounting material K ₂ consisting of bolts and nuts, and a space R is formed between the adjacent clamping surface bodies K and K, and is formed on the outer peripheral surface of the movable cylinder 20. A plurality of support pieces 20a, in this case, eight are provided, and the lower ends of the pair of operation links 21d and 21d are pivotally attached to the support pieces 20a by the lower pivot pins 20b. The upper end is pivoted by an upper pivot pin 21e with the one support link 21a interposed therebetween. Wear and, fixing hole 17a and the moving cylinder 20 expanded position G _A and diameter position fitting located fixed to the G _C disengaging pin 21g position fixing pin 21f positioned fixing the fixed cylinder 19 to the drive shaft 17 is inserted Two insertion holes 21h and 21i are formed to allow insertion and contraction operation in the radial direction of each of the pressing plate bodies G, G,. top Seiaze body by removing the fixed barrel 19 and the moving cylinder 20 and pulled out from the position fixing pin 21f and fitting disengaging pin 21g of the drive shaft 17 with diameter position G _a and contracted position G _C in position fixably provided 16 is provided so as to be detachable from the side surface trimming body 15.

  In this case, the pressing plate G is made of a synthetic resin plate such as a nylon resin or a vinyl chloride resin having flexible elasticity, and is substantially flat in a plate shape when no load is applied, and can be bent in an arc shape by an external load. A material which is restored and deformed substantially flat by self-elasticity when released is used. The pressure plate G may be made of a metal plate such as spring steel used for a plate spring or other resin plate.

Thus, in the above decreasing mechanism 18 moves the movable cylinder 20 to the rotation axis P direction on the drive shaft 17, FIG. 5, as shown in FIG. 6, the lower ridge W of ridge height H ₁ Seiaze when the movable cylinder 20 is located fixed to the enlarged diameter position G _a, and each of the clamping plate member G · G · · extended operation in the radial direction by the link mechanism 21, 10, as shown in FIG. 11, when Seiaze high ridge W of ridge height H ₂ is a movable cylinder 20 is fixed in position reduced diameter position G _C, by the link mechanism 21 each of the clamping plate member G · G · · radially It will be reduced.

  In this case, as shown in FIG. 3, a grounding mechanism 22 is pivotally attached to the intermediate shaft 8 with the base of the holding frame 23 concentrically with the intermediate shaft 8, and the rotor shaft 24 is attached to the tip of the holding frame 23. A grounding rotor 25 having a plurality of naginata-shaped blades is attached to the rotor shaft 24, a cover 26 is disposed on the top of the grounding rotor 25, and the intermediate shaft 8 and the rotor shaft 24 are disposed between them. A chain mechanism 27 is erected, and the upper surface portion of the old hammer W at the forward position of the embankment rotor 5 of the embedding mechanism 4 is rotationally earthed with a cutting locus S by the earthing rotor 25.

Since this embodiment is configured as described above, as shown in FIGS. 1 and 2, when the traveling machine body 1 travels in the direction of the arrow in the drawing along the old fence W and rotates the power take-off shaft 1a, on the other hand, the embankment mechanism No. 4 embankment rotor 5 continuously raises and raises the field mud at the time of dredging W onto the old dredge W, and the cover member 6a prevents the mud from scattering to the upper side of the embankment rotor 5 and to the side of the dredging. The mud is prevented from scattering outward and falls by its own weight. On the other hand, the grading mechanism 12 is driven by using the power take-off shaft 1a of the traveling machine body 1 as a drive source, and the rotary grading body 13 is one side W _{2 of the} ridge W. the result of the upper surface W ₁ of Seiaze possible side Seiaze body 15 and ridge W from Seiaze possible top Seiaze body 16, rotary Seiaze body 13 traveling machine body 1 as in Figure 2 the direction of the arrow by the rotation mechanism 14 rotates in the direction to promote the forward, upper surface W ₁及of ridge W by rotating Seiaze 13 On the other hand a side W ₂ can be Seiaze, rotating Seiaze body 13 by increasing the rotational speed of the rotary Seiaze body 13 relative to the running speed of the traveling machine body 1 rotates sliding contact with the ridge surface, the rotary slide By contact, the side surface W ₂ of the ridge W and the upper surface W _{1 of the} ridge W can be adjusted smoothly and firmly.

In this case, consists of the rotating Seiaze body 13 Seiaze possible top Seiaze body 16 the upper surface W ₁ of one side W ₂ Seiaze possible side Seiaze body 15 and ridge W of ridge W, the upper surface Seiaze Since the body 16 is provided so as to be detachable with respect to the side surface trimming body 15, by removing the top surface trimming body 16, the side surface of a high gutter, the slope of a road or a dike can be clamped, and versatility of use As shown in FIGS. 5 and 12, a plurality of pressing surface bodies K, K,... Are arranged at intervals on the outer peripheral portion of the upper surface adjusting body 16 and each pressing surface body K is disposed. · disposed a clamping plate member G having a flexible elastic leading to clamping surface K ₁ of clamping tetrahedron K of a rear position adjacent the clamping tetrahedra K side in the rotation direction forward position in K · ·, and FIG. 5, FIG. 9, FIG. 9, and FIG. 12, a pressing surface body K.K as a plurality of cross members 15d. - the outer surface of each of the clamping face piece K · K · · a clamping surface portion K ₁ a as well as arranged at intervals, clamping facepiece K rotational forward position in each of the clamping face piece K & K · · Since the pressing plate G having flexible elasticity reaching the pressing surface portion K ₁ of the pressing surface K adjacent to the rear side from the side is disposed, the pressing plate body is rotated with the rotation of the rotary rectifying body 13. G gradually compresses the embankment and is strongly clamped by the clamping surface body K via the clamping plate body G, and is intermittently clamped by the presence of the plurality of clamping surface bodies K, K,. The presence of the individual clamping surfaces K, K,... Allows the clamping pressure to be increased by reducing the clamping area as compared with a structure in which clamping is performed on the entire outer peripheral surface of the rotary trimming body 13, so Since W can be tightened and the pressure plate G has flexible elasticity, the pressure plate G is bent from a flat shape. While embankment can pressure gradually tightening the embankment can be reliably pressure clamping, it is possible to obtain a more robust ridge W.

In this case, as shown in FIGS. 5, 6, 8, and 12, the upper surface adjusting body 16 is adjacent to each of the pressing surface bodies K, K,. arranged a clamping plate member G having a flexible elastic leading to clamping surface K ₁ of clamping tetrahedron K backward position, further pressing of the rotational forward position in each of the clamping face piece K · K · · by having arranged the clamping plate member G having a flexible elastic leading to facepiece K of clamping facepiece K of a rear position adjacent the side pressing surface portion K _1, of the top surface Seiaze body 16 and side Seiaze 15 A space portion R is formed between the adjacent pressing surface bodies K and K, and the presence of the space portion R will more intermittently tighten the collar surface, and the space portion R can be firmly tightened as well. By this, the pressing plate G can bend in a curved shape from flat to inward and gradually pressurize the embankment, and the embankment can be surely Pressure it can, it is possible to suppress the adhesion phenomenon of soil to pressing plate member G it is possible to obtain a more robust furrow W, it is possible to perform good Seiaze work.

Further, expanded position clamping plate member G · G · · while permitting radial scaling operation of pressing plate member G · G · · for each of said upper surface Seiaze body 16 G _A and diameter position G since is provided a position fixable decreasing mechanism 18 and _C, FIG. 5, as shown in FIG. 6, fixed in position expanded position G _a and extended operating each of the clamping plate member G · G · · radially can Seiaze low ridge W of Azedaka of H ₁ by, 10, as shown in FIG. 11, reduced diameter position by reducing operation each clamping plate member G · G · · radially can be fixed in position G _C, ridge height H ₂ of high ridges W to be able to Seiaze, the upper surface Seiaze 16 Azedaka of H ₁ lower the ridge W and for Azedaka of H ₂ high can be resized for ridge W, ridge height two types of rotary Seiaze body 13 and two of the top surface Seiaze body of an H ₁ lower for high ridge W of ridge W and for Azedaka of H ₂ 16 does not need to be prepared, and it is not necessary to replace the entire rotary trimming body 13 or only the top trimming body 16, and the trimming workability can be improved accordingly.

In this case, as the expansion / contraction mechanism 18, as shown in FIGS. 5, 6, and 7, the drive shaft 17 is disposed on the rotation axis P of the upper surface trimming body 16, and the fixed cylinder 19 is stopped on the drive shaft 17. The movable cylinder 20 is provided so as to be freely fixed in the state, and is movable in the direction of the rotation axis P in the stationary state. Between the fixed cylinder 19 and the movable cylinder 20 and the plurality of pressing surface bodies K, K,. Since the link mechanism 21 is provided, by moving the movable cylinder 20 in the direction of the rotation axis P of the drive shaft 17, each of the pressing plate bodies G, G,. can be fixed in position expanded position G _a extended operation, also, FIG. 10, as shown in FIG. 11, reduced diameter position G by reducing operating each of the clamping plate member G · G · · radially _The upper surface trimming body 16 can be fixed to _C , and the upper surface trimming body 16 is for ridge W having a low ridge height H ₁ and for ridge W having a high ridge height H ₂ . As the link mechanism 21, support links 21a and 21a are installed between the fixed cylinder 19 and the pressing surface K, and the movable cylinder 20 and the support link 21a Since the operation link 21d is installed between the two, the structure of the link mechanism 21 can be simplified and the expansion / contraction operation of each of the pressing plate bodies G, G,.

  In this case, as shown in FIGS. 3, 4, and 5, the old dredging surface can be ground in advance by the soil cutting mechanism 22, and the embankment mechanism 4 fills the ground on the ground surface thus ground. The binding property between the old dredging W soil and the embankment can be enhanced, and a solid dredging W can be obtained.

  The present invention is not limited to the above-described embodiment. For example, the present invention is formed in the structure in which the rotation axis P of the rotary trimming body 13 is horizontal without being inclined, or formed on the side trimming body 15. The present invention can also be applied to a structure formed in a conical surface shape in which the outer surface is a continuous surface without the presence of such a pressing plate body, and the structure of the rotary adjusting body 13 and the pressing surface body K. In addition, the number and shape of the pressing plate body G, the size and material of the pressing plate body G, and the like are designed as appropriate.

  As described above, the intended purpose can be sufficiently achieved.

W 畦 W ₁ Upper surface W ₂ One side surface P Rotating axis K Pressing surface body K ₁ Pressing surface part G Pressing plate body G _A Diameter expansion position G _C Reduction diameter position 1 Traveling machine body 2 Connection mechanism 3 Machine frame 4 Filling mechanism 12 Adjusting Acupuncture mechanism 13 Rotating trimming body 15 Side trimming body 16 Upper surface trimming body 17 Drive shaft 18 Expansion / contraction mechanism 19 Fixed cylinder 20 Moving cylinder 21 Link mechanism 21a Support link 21d Actuation link

Claims (3)

  Rotation adjustment that connects the machine frame to the traveling machine body with a linkage mechanism, and provides a banking mechanism that raises the soil on the old ridge, and the ridge surface can be rotationally adjusted by press-fitting rotation at a rear position in the traveling direction of the banking mechanism. A rotary trimming body comprising a side trimming body capable of trimming one side surface of the collar and a top surface trimming body capable of trimming the upper surface of the collar. A plurality of pressing surface bodies are arranged at intervals on the outer peripheral portion, and each pressing surface body can reach the pressing surface portion of the pressing surface body at the rear position adjacent from the pressing surface body side at the front position in the rotational direction. An expansion / contraction mechanism in which a compression plate body having flexural elasticity is disposed, allows the expansion / contraction operation of each compression plate body in the radial direction, and can fix the compression plate body at a diameter expansion position and a diameter reduction position. A sizing machine characterized by comprising:   As the expansion / contraction mechanism, a drive shaft is disposed on the rotation axis of the upper surface trimming body, and a fixed cylinder is provided on the drive shaft so as to be positionally fixed in a rotation state, and the movable cylinder is rotated in the rotation axis direction in the rotation state. 2. The straightening machine according to claim 1, wherein the styling machine is provided so as to be movable, and a link mechanism is provided between the fixed cylinder and the movable cylinder and the plurality of pressing surface bodies.   3. The link mechanism according to claim 2, wherein a support link is installed between the fixed cylinder and the pressing surface body, and an operation link is installed between the movable cylinder and the support link. Straightener.