Veneer lathe

[Detailed Description of the Invention]

[Industrial Application] This invention relates to the veneer lathe which cuts a plywood single plate (henceforth a single plate) from material wood.

[Description of the Prior Art] These people have many cutting parts or piercing objects on the perimeter in JP,53-91499,A previously, The right I is equipped with the gutter of the hand of cut, a position good at point-of-a-sword going-up how many minutes of Guidance is equipped with Drive roll, and the passage of the single plate immediately after cutting is made to form between the above-mentioned edged tool and the above-mentioned drive roll. power -- the material wood perimeter -- supply To cover -- it had useless drive mechanism, and also the gutter of the drive roll was equipped with the single plate guide part for making the single plate or the piece of Lack of immediately after cutting secede from the cutting part or piercing object of the above-mentioned drive roll smoothly, and the veneer lathe which may improve the material wood yield was proposed.

If it is in [Problem(s) to be Solved by the Invention] however But, and the veneer lathe, in order to cut by rotating the material wood by the cutting part or the prickle arrival of a piercing object to the material wood perimeter, it had a problem to which Bite mark remains on the surface of the cut single plate. Although it is what does not become a problem exceptionally in order not to expose the above-mentioned Bite mark on the plywood surface as a product when the cut single plate is used as a single plate for middle-sized boards which constitutes plywood, When used as a single plate for negatives for clothes which constitutes plywood, although there was no problem of intensity, this Bite mark had become a factor which makes plywood quality aesthetic-sense-top-low-Do. For this reason, if it is in the above-mentioned veneer lathe, it cannot be used when cutting the single plate for negatives which makes aesthetic sense a problem, If it was after material wood resulted in the abbreviated perfect circle, Beni A7 conventional race which cuts by rotation of a spindle had to be reequipped with the material wood, and working efficiency had a bad fault. In order to solve this fault, these people developed the veneer lathe concerning Japanese Patent Application No. No. (original patent application of this application) 36290 [ 58 to ].

[Means for Solving the Problem] The object of the present invention limits composition of a veneer lathe indicated to original patent application, It prevents an elastic member becoming vulnerable by frictional heat which occurs with rotation of an elastic member welded by pressure to a material wood peripheral face at the time of a material wood drive, and being damaged, material wood is rotated stably, and it is in providing Beni A7 race in which cutting 1' To is possible about a single plate. For this reason, an elastic member of a large number which give rotation driving force to material wood according to frictional force which rotates the present invention, welds by pressure to a peripheral face of material wood by which chocking was carried out, and arises between the material wood, In a veneer lathe provided with a cutting knife which cuts a plywood single plate by Move * To toward a peripheral face of the material wood according to rotation of material wood, a veneer lathe is constituted by providing metal members in the material wood contact side side of each elastic member sporadically.

[Function of the Invention] According to the present invention, the elastic member of a large number to rotate is made to weld by pressure to the peripheral face of the material wood by which chocking was carried out, and a single plate is cut with a cutting knife, giving rotation driving force to material wood by generating J Frictional force with pressure welding with the elastic member to rotate. And it is although it has a tendency which makes an elastic member vulnerable by the frictional heat which occurs with the above-mentioned pressure welding by prolonged use at the time of rotation of material wood, and is easy to be damaged, Frictional heat was made to radiate heat positively by the metal members provided in the elastic member, and the breakage accompanying vulnerable-izing of the elastic member by frictional heat is prevented. It is possible to be able to come, to continue for being alike at Long term, and to rotate material wood stably. Since metal members are provided in the contact side side over material wood, they can raise a coefficient of friction with a material wood peripheral face, and can give bigger driving force to material wood. It carries out and is Example]. Hereinafter, an example is described according to one example of the present invention. In Drawing 4 in which attachment of the elastic roll to Drawing 1 showing the outline of the veneer lathe of the present invention, Drawing 3 showing the outline of Not shown 2 figure and an elastic roll for the arrangement state of a drive roll and an elastic roll, and a driving shaft and a drive roll shows a state, Tool post 5 by which support frame 3 was provided in one is attached to the body frame (not shown) of veneer lathe 1 so that movement in the direction which intersects perpendicularly with the axis of the spindle (not shown) which carries out chocking of the material wood 7 is possible. It sends to the tool post 5, a screw (not shown) is connected, and tool post 5 reciprocates with rotation of the sending screw. Cutting Di 79 is a position according to the abbreviated axis of the above-mentioned spindle, and it is attached to the above-mentioned tool post 5 so that it may have the edge of a blade parallel to the axis. The cutting knife 9 cuts single plate S which consists of necessary thickness, when tool post 5 moves by operation of a sending screw toward the peripheral face of rotating material wood 7. In superior, drive @11 is rotatably supported a little by the above-mentioned support frame 3 to the hand of cut of material wood 7 by the edge of a blade of the above-mentioned cutting knife 9. An electric motor (illustration 1 To) is connected with the driving shaft 11, and driving shaft 11 rotates with the drive of the electric motor in the direction of a solid line arrow shown in Drawing 1. Many fixed rolls 13 set a necessary interval to the driving shaft 11 in the direction of an axis of the supporting spindle 11, it acts to it as a person of the same sex to it, and collector ring 15 is slidably attached to the peripheral face of the fixed roll 13. And elastic roll 17 which constitutes an elastic member is attached to the perimeter of each collector ring 15, for example, the elastic roll 17 is elastically deformable, it consists of hard urethane rubber etc., and it is welded by pressure to the peripheral face of material wood 7 according to superior from the edge of a blade of the above-mentioned cutting knife 9 a little to the hand of cut of material wood 7. Metal wire rod 18 wound in the shape of [ which constitutes metal members in the elastic O-Le 17 ] a coil is fabricated by material wood 7 at hard urethane rubber and one at the Contact side side for J. The metal wire rod 18 can be obsequiously deformed according to elastic deformation of elastic roll 17, and raises the coefficient of friction to material wood 7, and it makes the frictional heat which occurs at the time of material wood 70 rotation radiate heat, since it is formed in the shape of a coil. And the above-mentioned collector ring 15 races driving shaft 11, when Negative more than necessary acts to elastic roll 17 at the time of cutting of material wood 7, and collector ring 15 slides to fixed roll 13. Shield @ This transmits the rotation driving force of driving shaft 11 to elastic roll 17. Drive roll 19 is being fixed to the above-mentioned driving shaft 11 where proximal is carried out to the @1ltlA direction both sides of the above-mentioned fixed roll 13 and elastic roll 17. The drive roll 19 consists of the shape of a byway from the diameter of elastic roll 17, and many piercing objects 19a are formed in the perimeter at one. The outside diameter difference of the drive roll 19 and elastic 0-Le 17, For example, cutting thickness until material wood 7 results in an abbreviated perfect circle is thickness (when cutting single plate S on which high cutting force acts). When cutting single plate S on which cutting force with it acts after prickle arrival is possible for piercing object 19a and material wood 7 results in an abbreviated perfect circle to the peripheral face of material wood 7 by increasing pressure welding m of elastic roll 17 to material wood 7 peripheral face, [ thin cutting thickness and ] [ low ] It is set up so that Pressure welding of elastic roll 17 to the peripheral face of material wood 7 may be lessened and piercing object 19a may become impossible [ prickle arrival ] to material wood 7. Single plate ejection passage 21 is formed between above-mentioned cutting Naino 9, elastic roll 17, and drive roll 19, and cut single plate S is discharged out of the Beni V race 1 via the single plate ejection passage 21. Many Brush 17- and bars 23 adhere to the above-mentioned support frame 3 between the above-mentioned elastic roll 17 and drive roll 19, and the pressure bar 23 comprises pressurization chip 27 attached at the tip of holder 25 which adheres to support frame 3, and the holder 25. And at the time of cutting of material wood 7, the pressure bar 23 makes above-mentioned pressurization Detep 27 weld by pressure to the peripheral face of material wood 7 according to the edge-of-a-blade neighborhood of cutting knife 9, and regulates J and a point crack of Logs 7 on cutting knife 9. A material wood racing mechanism (illustration * Scratches) is connected with the above-mentioned spindle, and a spindle rotates with the drive of the material wood idling machine ii. About the composition and its operation of this material wood racing mechanism, since it is indicated in detail to JP,53-91499,A, that explanation is omitted. When the case where single plate S with comparatively thick cutting thickness which constitutes the middle-sized board of plywood in early stages of cutting until it results is cut is explained, it is made to rotate in the direction of a material wood solid line arrow aligned by the spindle. And if tool post 5 is moved by making sending accompanying rotation of a sending screw large, rotating elastic roll 17 will be welded by pressure to the peripheral face of material wood 7, and rotation driving force will be given to the material wood 7 by the comparatively big frictional force which the elastic roll 17 deforms elastically more than necessary, and arises in between with material wood 7. As for drive roll 19 which carries out proximal, at this time, prickle arrival of the piercing object 19a of That is carried out to the peripheral face of material wood 7 with the elastic deformation more than necessary [ of the above-mentioned elastic roll 17 ], Even if it follows on rotation of the drive roll 19, it rotates in the direction of a solid line arrow shown in a rotation piece to material wood 7, and single plate S which consists of necessary thickness with cutting knife 9 which runs toward the perimeter of material wood with rotation of material wood 7 with driving shaft 11 is cut. If it is after cutting of single plate S, when elastic roll 17 carries out an elastic return toward the outside with rotation of driving shaft 11, the prickle arrival of piercing object 19a to single plate S is canceled automatically. the time of waste, such as a piece of wood, invading between material wood 7 Elasticity rolls 17 at the time of cutting of material wood 7, when elastic roll 17 hits the convex part of the perimeter of material wood 7 -- fixed roll 13 and collector ring 15 -- although 13 or more maximum frictions [ of which between ] rotation resistance tends to arise on elastic roll 17 In order that collector ring 15 may slide to fixed roll 13 at this time, the transfer of the rotation driving force of driving shaft 11 to elastic roll 17 is intercepted. Even if it can come, it resists for being alike at Cutting resistance and elastic roll 17 continues rotating, breakage of elastic roll 17 by the elastic deformation beyond a limit is prevented. next, it is in Drawing r d3 and material wood 7 is \ at the shape of an approximately perfect circle -- if the case where single plate S with comparatively thin cutting thickness which constitutes the negative of plywood behind is cut is explained If it is made to decrease according to the thickness of single plate S which has the amount of sending of tool post 5 cut, It becomes the physical relationship to which Pressure welding of Elasticity 1for J]-Le 17 decreases in material wood 7, and piercing object 19a does not carry out prickle arrival of material wood 7 and the single plate S, and the rotation driving force of driving shaft 11 is given by the frictional force which arises with rotation of elastic roll 17 welded by pressure to material wood 7 on the perimeter of material wood 7. Single plate S which consists of necessary F4 To with cutting knife 9 which acts with rotation of material wood 7 by this is cut. Since material wood 7 rotates according to the frictional force accompanying rotation of elastic roll 17 chiefly welded by pressure to a peripheral face at this time, the elastic roll 17 has those for Ml(s) which are made vulnerable by Ig Frictional heat by prolonged cutting, but the frictional heat radiates heat with metal wire rod 18. Since the coefficient of friction to material wood 7 peripheral face becomes high with the metal wire rod 18, it is possible to rotate material wood efficiently. by this, vulnerable-ization by the above-mentioned frictional heat is prevented, and material wood 17 continues at a long period of time -- material wood 7 -- stable -- rotation J To -- things are made. It is possible to cut quality single plate S, without forming Bite mark by piercing object 19a in the surface. In the cutting first stage until material wood 7 results in an abbreviated perfect circle, they are convex parts, such as a paragraph of the material wood 7 perimeter, or -- although bulge modification of the elastic roll 17 is carried out in the direction of an axis of elastic deformation Suffering driving shaft 11 too much with the piece of wood etc. in which cutting first IUJ or material wood 7 invaded between the material wood 7 and elastic roll 17 after Reached 1 = at the abbreviated perfect circle and it has a tendency which is easy to be damaged by this By drive roll 19 arranged at the both sides of the elastic ["-Le 17, the above-mentioned bulge modification was regulated and breakage of the material wood 17 is avoided. Thus, when this example's cutting single plate S, making material wood 7 rotate according to the frictional force which arises with rotation of elastic roll 17 welded by pressure to the peripheral face of material wood 7, in order that the frictional heat which occurs by the above-mentioned friction may be made to radiate heat with metal wire rod 18, It is possible to prevent vulnerable-ization of elastic roll 17, to continue at a long period of time, and to rotate material wood stably. Since the metal wire rod 18 is provided in the contact side side over material wood 7, it is possible to raise a coefficient of friction with the peripheral face of material wood 7, and to give bigger driving force to material wood 7. The above-mentioned explanation is although the torque of driving shaft 11 shall be transmitted to material wood 7 by elastic roll 17 or drive roll 19 and single plate S shall be cut, While the present invention rotates material wood 7 mainly by the above-mentioned elastic roll 17 and one drive roll, While rotating material wood 7 by the veneer lathe of the form which is made to rotate material wood 7 and is cut by supplying the torque of a spindle to material wood 7, or a spindle, Prickle arrival of the cutting part or piercing object which gets down to the Piercing roll which follows by rotation of the material wood 7 is carried out to the material wood perimeter, a front crack is formed, and Ah can also be carried out by the veneer lathe of form which acquires the tender effect. If it is in the veneer lathe of the spindle drive form, For example, it is possible to acquire the high tender effect by making the front crack which establishes Regulationn which makes the single plate cut by the aisle side of the Piercing roll crooked in the tool post side, and q object as shown in JP,57-156206,A, and originates in Bite mark form positively. Although the above-mentioned explanation shall attach driving shaft 11 to support frame 3 fixed, it may change arbitrarily pressure welding m of an elastic roll to Installation and material wood via the driving shaft oil-pressure-regulation mechanism which consists a driving shaft of an oil pressure cylinder, a stopper, etc. to a support frame.

[Effect of the Invention] thus -- the present invention prevents vulnerable-ization of the elastic member by the frictional heat which occurs with pressure welding with material wood and an elastic member at the time of a raw water drive -- drive A j to material wood -- A pasta -- it is possible to provide the veneer lathe which it enlarges, and material wood is rotated stably and can cut a single plate.

[Brief Description of the Drawings]

The sectional view in which Drawing 1 shows the outline of a veneer lathe, the explanatory view in which Drawing 2 shows the arrangement state of a drive roll and an elastic roll, the explanatory view in which Drawing 3 shows the outline of an elastic roll, and a Show '?l explanatory view and Drawing 4 show the structure of an elastic roll, and Drawings 5 and 6 are explanatory views showing an operation. As for material wood and 9, one in a figure is [ the elastic roll as an elastic member and 18 ] the metal wire rods as a metal member a cutting knife and 17 a veneer lathe and 7. Applicant for a patent Incorporated company Meinan Machinery Works representative Patent attorney Ito Research - 5 59 Drawing 6