CN114670303B

CN114670303B - Thickness fixing structure of non-clamping shaft rotary cutter and working method thereof

Info

Publication number: CN114670303B
Application number: CN202210417543.8A
Authority: CN
Inventors: 李承华; 丁强; 张景南
Original assignee: Fuzhou Sanmu Sansen Machinery Co ltd
Current assignee: Fuzhou Sanmu Sansen Machinery Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2023-04-28
Anticipated expiration: 2042-04-21
Also published as: CN114670303A

Abstract

The invention relates to a thickness fixing structure of a shaftless rotary cutter and a working method thereof, wherein the structure comprises a machine base, a single roller beam and a rotary cutter blade, wherein the single roller beam is provided with a single driving roller, a pressure bar beam is arranged above the single roller beam, the front side of the pressure bar beam is fixedly connected with a plurality of pressure bars which are transversely arranged, the lower ends of the pressure bars extend to the vicinity of the rear side of the cutting edge of the rotary cutter blade, the single driving roller is positioned behind the pressure bars, the single driving roller is provided with a plurality of transmission discs which are axially arranged at intervals, and the front parts of the transmission discs extend out from the front sides of the pressure bars through intervals between two adjacent pressure bars. The thickness-fixing structure of the shaftless rotary cutter is reasonable in design and high in practicability, a plurality of pressure bars arranged in rows are additionally arranged at the single driving roller of the shaftless rotary cutter to press wood, high-precision multipoint thickness fixing is achieved, the pressure bars press the wood and stabilize wood jumping or shaking in the rotary cutting process, the wood is ensured to be stably rotary-cut, the quality of a single board is ensured, meanwhile, wire drawing and wave phenomena are eliminated, the surface is smooth, and the accuracy and quality of the single board are further improved.

Description

Thickness fixing structure of non-clamping shaft rotary cutter and working method thereof

Technical Field

The invention relates to the technical field of rotary cutting machines, in particular to a thickness fixing structure of a shaftless rotary cutting machine and a working method thereof.

Background

At present, veneer manufacturing equipment in China is completed by a rotary cutter with a clamping shaft and a rotary cutter without the clamping shaft. The working principle of the rotary cutting machine without the clamping shaft is that three driving rollers (a double driving roller and a single driving roller) clamp wood and drive the wood to rotate on the central line of the double driving roller, and the double driving roller moves to the direction of a blade to extrude the wood (namely, moves to the direction of the single driving roller) while driving the wood, and the wood is cut into single plates by the blade. In the rotary cutting process, the wood cannot be kept on the central line all the time, and can be inevitably dithered (trembled) up and down at the knife edge, so that the phenomena of wire drawing, wave and uneven thickness of the board surface occur, and the quality of the veneer is affected.

Disclosure of Invention

Therefore, the invention aims to provide the thickness-fixing structure of the shaftless rotary cutter with the thickness-fixing function, which has strong practicability, ensures the stable rotary cutting of wood and improves the quality of veneers.

The invention is realized by adopting the following scheme: the utility model provides a no clamping axle peeler fixed thickness structure, includes frame, installs single roller roof beam and the rotary-cut blade of single drive roller, is located single roller roof beam top and is equipped with the pressure bar roof beam, pressure bar roof beam front side fixedly connected with is a plurality of along horizontal range and the lower extreme extends to the adjacent pressure bar of rotary-cut blade cutting edge rear side, single drive roller is located the pressure bar rear, is equipped with a plurality of transmission disks along axial interval arrangement on the single drive roller, the transmission disk front portion stretches out from the pressure bar front side through the interval between two adjacent pressure bars.

Further, the single driving roller comprises a roller shaft positioned at the center, the transmission disc is sleeved on the roller shaft, tooth grooves are formed in the peripheral portion of the roller shaft along the axial direction, and protruding teeth matched with the tooth grooves are formed in the edge portion of an inner hole of the transmission disc.

Further, a limiting ring sleeved on the roll shaft is arranged between two adjacent transmission discs; external thread parts are arranged at two ends of the roll shaft, and pressing rings which compress the transmission disc towards the middle are connected with threads.

Further, a transverse channel is formed in the front side of the pressure bar beam, a positioning key is embedded in the transverse channel, and a key groove matched with the positioning key is formed in the rear side of the pressure bar.

Further, the beam body supporting seat is arranged above two sides of the rear portion of the machine base, a connecting seat is arranged on the upper side of the beam body supporting seat through a bolt, a long hole matched with the bolt is formed in the connecting seat, the rear portion of the pressure bar beam is hinged to the connecting seat, a vertical fixing plate positioned behind the connecting seat is fixedly connected to the beam body supporting seat, an adjusting bolt is arranged on the vertical fixing plate in a penetrating mode, and a threaded hole in threaded connection with the adjusting bolt is formed in the rear end of the connecting seat.

Further, an adjusting seat is arranged on the beam body supporting seats at two sides respectively, the front ends of the adjusting seats are hinged to the beam body supporting seats, two ends of the single-roller beam are connected to the adjusting seats through bolts, long holes matched with the bolts are formed in the two ends of the single-roller beam, a top wheel is mounted at the rear end of the adjusting seat, the top wheel is leaned against the cams below the top wheel, and the cams on the two side beam body supporting seats are connected through a connecting shaft.

Further, a double-roller beam which is positioned in front of the single-roller beam and can move back and forth relative to the machine base is arranged above the front part of the machine base, and a double-driving roller is arranged on the double-roller beam; one end of the connecting shaft is connected with a swing arm, a connecting rod is connected between corresponding ends of the swing arm and the double-roller beam, and two ends of the connecting rod are respectively hinged to free ends of the double-roller beam and the swing arm.

Further, driving motor and reducing gear box are installed to single roller roof beam rear side, and single drive roller both ends are rotated and are installed on the bearing frame of Shan Gunliang front side, and a pivot is installed in the one end rear side rotation of single roller roof beam, through universal joint transmission connection between the power take off end of reducing gear box and the pivot, through hold-in range and synchronous pulley transmission connection between pivot and the single drive roller.

The invention adopts another technical scheme that: the working method of the thickness fixing structure of the shaftless rotary cutter comprises the steps that wood is pressed backwards on the shaftless rotary cutter and is against a blade and a single driving roller, the single driving roller rotates to drive the wood to rotate for rotary cutting, and in the rotary cutting process, a pressure bar presses the wood and stabilizes the jumping or shaking of the wood, locks the distance between the pressure bar and a cutting edge, and controls the thickness of the wood within standard precision.

Compared with the prior art, the invention has the following beneficial effects: the thickness-fixing structure of the shaftless rotary cutter is reasonable in design and high in practicability, a plurality of pressure bars arranged in rows are additionally arranged at the single driving roller of the shackless rotary cutter to press wood, the thickness-fixing function is increased, high-precision multipoint thickness fixing is realized, the pressure bars press the wood and stabilize wood jumping or shaking in the rotary cutting process, the distance between the pressure bars and a cutting edge is locked, the thickness of the wood is controlled within standard precision, the stable rotary cutting and the uniform thickness of the wood are ensured, the quality of a single board is ensured, meanwhile, the phenomena of wiredrawing and wave are eliminated, the surface is smooth, and the precision and the quality of the single board are further improved.

The present invention will be further described in detail below with reference to specific embodiments and associated drawings for the purpose of making the objects, technical solutions and advantages of the present invention more apparent.

Drawings

FIG. 1 is a perspective view showing the overall structure of a shaftless rotary cutter according to an embodiment of the present invention;

FIG. 2 is a front perspective view of a fixed thickness structure according to an embodiment of the present invention;

FIG. 3 is a rear perspective view of a fixed thickness structure according to an embodiment of the present invention;

FIG. 4 is a perspective view of FIG. 2 with the hold-down beam omitted;

FIG. 5 is a perspective view of a pressure bar beam in an embodiment of the invention;

FIG. 6 is an enlarged view at A in FIG. 5;

FIG. 7 is a diagram of a single roller Liang Liti in an embodiment of the invention;

FIG. 8 is an end view of a single drive roller in an embodiment of the invention;

FIG. 9 is a perspective view of a drive plate in an embodiment of the invention;

FIG. 10 is a schematic view of an adjustment seat installation in an embodiment of the present invention;

the reference numerals in the figures illustrate: 100-stand, 110-beam body supporting seat, 111-vertical fixed plate, 120-connecting seat, 130-adjusting seat, 131-top wheel, 200-single roller beam, 210-driving motor, 220-reduction gearbox, 230-rotating shaft, 240-universal coupling, 300-rotary cutting blade, 400-single driving roller, 410-driving disc, 411-convex tooth, 420-roller shaft, 421-tooth socket, 430-limiting ring, 440-pressing ring, 500-pressing bar beam, 510-pressing bar, 511-key slot, 520-transverse channel, 530-positioning key, 600-connecting shaft, 610-cam, 620-swing arm, 630-connecting rod, 700-double roller beam, 710-double driving roller and 800-feeding driving assembly.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

As shown in fig. 1 to 10, a thickness fixing structure of a spindleless rotary cutter comprises a machine base 100, a single roller beam 200 provided with a single driving roller 400 and a rotary cutter blade 300, wherein a pressure bar beam 500 is arranged above the single roller beam, a plurality of pressure bars 510 which are arranged transversely are fixedly connected to the front side of the pressure bar beam 400, the lower ends of the pressure bars extend to the vicinity of the rear side of the cutting edge of the rotary cutter blade 300, the single driving roller 400 is positioned behind the pressure bars, a plurality of transmission discs 410 which are arranged at intervals along the axial direction are arranged on the single driving roller, and the front parts of the transmission discs 410 extend out of the front sides of the pressure bars 510 through intervals between two adjacent pressure bars. The thickness-fixing structure of the non-clamping-shaft rotary cutter is characterized in that a plurality of pressure bars arranged in rows are additionally arranged at a single driving roller to press wood, so that high-precision multi-point thickness fixing is realized to solve the problems of the single driving roller of the conventional non-clamping-shaft rotary cutter. The working principle is as follows: the pressure bar is inserted in the middle of the single driving roller, the upper end of the pressure bar is fixed on the pressure bar beam, the lower end of the pressure bar stretches into the vicinity of the rear side of the cutting edge of the rotary cutting blade, the distance between the lower end of the pressure bar and the cutting edge is adjusted, the pressure bar presses wood and stabilizes the jump or shake of the wood in the rotary cutting process, the distance between the pressure bar and the cutting edge is locked, the thickness of the board is controlled within standard precision, the stable rotary cutting of the wood is ensured, the quality of a single board is ensured, meanwhile, the wire drawing and wave phenomena are eliminated, the surface is smooth, the precision and the quality of the single board are further improved, the functions of the clamping shaft rotary cutter and the non-clamping shaft rotary cutter are combined, meanwhile, the single driving roller adopts a pawl structure formed by a plurality of transmission discs, and the transmission discs can penetrate through the pressure bar and drive the wood to rotate from the front side of the pressure bar.

In this embodiment, the single driving roller 400 includes a roller shaft 420 located at the center, the driving disc 410 is sleeved on the roller shaft, a tooth slot 421 is disposed on the outer peripheral portion of the roller shaft 420 along the axial direction, teeth 411 matched with the tooth slot are disposed on the edge portion of the inner hole of the driving disc 410, and the driving disc and the roller shaft realize synchronous rotation through the matched teeth and tooth slot.

In this embodiment, a limiting ring 430 sleeved on the roller shaft is arranged between two adjacent driving disks 410; the roller 420 both ends are equipped with external screw thread portion and threaded connection have to the centre compress tightly the clamping ring 440 of driving disk, still are equipped with the retaining ring between clamping ring 440 and the driving disk of tip, and the clamping ring hole is equipped with internal screw thread portion, clamping ring and roller threaded connection, extrudees the location to the centre through the clamping ring at both ends, avoids the driving disk to take place axial float to utilize spacing environmental protection evidence to be the distance between two adjacent driving disks unchangeable.

In this embodiment, in order to make all the pressure gauges install flush and level, ensure that the rotary cutting thickness is even, the pressure gauge beam 500 front side has been seted up horizontal channel 520, the horizontal channel is embedded to be equipped with locating key 530, the pressure gauge rear side has been seted up with locating key complex keyway 511.

In this embodiment, beam supporting bases 110 are disposed above two sides of the rear portion of the stand 100, a connecting base 120 is connected to the upper side of the beam supporting bases 110 through bolts, long holes matched with the bolts are formed in the connecting base 120, the rear portion of the pressure bar beam 500 is hinged to the connecting base 120, a vertical fixing plate 111 located behind the connecting base is fixedly connected to the beam supporting bases, an adjusting bolt (not shown in the drawing) is arranged on the vertical fixing plate in a penetrating manner, the adjusting bolt can only rotate relative to the vertical fixing plate, a threaded hole connected with the adjusting bolt in a threaded manner is formed in the rear end of the connecting base, and the pressure bar beam is in a horizontal state during operation because the rear portion of the pressure bar beam is hinged to the connecting base, and can swing upwards when the pressure bar beam needs to be overhauled or a single driving roller needs to be overhauled or replaced; and through rotating adjusting bolt, can drive the connecting seat and reciprocate, and then adjust the distance between the cutting edge of clamp bar and rotary-cut blade, the bolt on the locking connecting seat after the regulation finishes, the beam body supporting seat clamp bar roof beam front and back position.

In this embodiment, two beam body supporting seats 110 on two sides are respectively provided with an adjusting seat 130, the front ends of the adjusting seats 130 are hinged to the beam body supporting seat 100, two ends of the single-roller beam 200 are connected to the adjusting seats 130 through bolts, two ends of the single-roller beam 200 are provided with long holes matched with the bolts, the rear ends of the adjusting seats 130 are provided with top wheels 131, the top wheels 131 are leaned against cams 610 below the top wheels, the cams on the beam body supporting seats on two sides are connected through a connecting shaft 600, and two ends of the connecting shaft 600 are rotatably connected to the beam body supporting seats through bearings; the connecting shaft rotates to drive the cams at two ends to rotate, the angles of the regulating seats can be finely regulated by the rotation of the cams through the outlines of the cams, and then the fine regulation of the working angles of the single driving rollers is realized, and the change of the single driving rollers is kept to change the gap between the single driving rollers and the rotary cutter blade.

In this embodiment, a double-roller beam 700 that is located in front of the single-roller beam and can move back and forth relative to the machine base is installed above the front of the machine base 100, a double-driving roller 710 is installed on the double-roller beam, and a feeding driving assembly that drives the double-roller beam to move back and forth is arranged in front of the double-roller beam, and drives the double-roller beam to move back and further to squeeze wood. The double roller beams and the feed drive assembly both belong to the prior art, and the structure and the working principle thereof are not specifically described herein; one end of the connecting shaft is connected with a swing arm 620, a connecting rod 630 is connected between the corresponding ends of the swing arm and the double-roller beam, and two ends of the connecting rod are respectively hinged to the free ends of the double-roller beam and the swing arm; the connecting shaft in the thickness fixing structure is connected with the double-roller beam through the connecting rod and the connecting arm to realize linkage; in the rotary cutting process, the diameter of the wood is gradually reduced, the contact position of the rear driving rod and the wood can be changed, and through the linkage structure, the connecting shaft can be driven to rotate in the backward moving process of the double-roller beam so as to adjust the working angle of the single driving roller to adapt to the wood with reduced diameter.

In this embodiment, the driving motor 210 and the reduction gearbox 220 are installed on the rear side of the Shan Gunliang, two ends of the single driving roller are rotatably installed on the bearing seat on the front side of the Shan Gunliang, a rotating shaft 230 is rotatably installed on the rear side of one end of the single roller beam, the power output end of the reduction gearbox is in transmission connection with the rotating shaft through the universal coupling 240, and the rotating shaft is in transmission connection with the single driving roller through the synchronous belt and the synchronous belt pulley.

The working method of the thickness fixing structure of the shaftless rotary cutter comprises the steps that wood is pressed backwards by the double driving rollers on the double roller beams on the shaftless rotary cutter to lean against the blade and the single driving roller, the single driving roller rotates to drive the wood to rotate for rotary cutting, and in the rotary cutting process, the pressure bar presses the wood and stabilizes the jumping or shaking of the wood, locks the distance between the pressure bar and the cutting edge, and controls the thickness of the wood within standard precision; along with the diameter of timber diminishes, the twin roll roof beam slowly moves forward to drive the connecting axle through connecting rod and linking arm and rotate, and then change the angle of adjusting the seat through the epaxial cam of connecting, realize the regulation to single drive roller operational angle.

Before wood processing begins, the distance between the lower end of the pressure bar and the cutting edge of the rotary cutting blade is required to be adjusted according to the thickness of the required veneer, and the concrete adjustment mode is to lock the bolts on the connecting seat after the adjustment is finished by rotating the adjusting bolts on the vertical fixing plate, and the beam body supports the front and rear positions of the pressure bar beam of the seat.

Any of the above-described embodiments of the present invention disclosed herein, unless otherwise stated, if they disclose a numerical range, then the disclosed numerical range is the preferred numerical range, as will be appreciated by those of skill in the art: the preferred numerical ranges are merely those of the many possible numerical values where technical effects are more pronounced or representative. Since the numerical values are more and cannot be exhausted, only a part of the numerical values are disclosed to illustrate the technical scheme of the invention, and the numerical values listed above should not limit the protection scope of the invention.

If the invention discloses or relates to components or structures fixedly connected with each other, then unless otherwise stated, the fixed connection is understood as: detachably fixed connection (e.g. using bolts or screws) can also be understood as: the non-detachable fixed connection (e.g. riveting, welding), of course, the mutual fixed connection may also be replaced by an integral structure (e.g. integrally formed using a casting process) (except for obviously being unable to use an integral forming process).

In addition, terms used in any of the above-described aspects of the present disclosure to express positional relationship or shape have meanings including a state or shape similar to, similar to or approaching thereto unless otherwise stated.

Any part provided by the invention can be assembled by a plurality of independent components, or can be manufactured by an integral forming process.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a no clamping axle peeler thickness structure, includes frame, installs single roller beam and the rotary-cut blade of single drive roller, its characterized in that: the single driving roller is positioned behind the pressure bars, a plurality of transmission discs which are arranged at intervals along the axial direction are arranged on the single driving roller, and the front parts of the transmission discs extend out of the front sides of the pressure bars through intervals between two adjacent pressure bars; the front side of the pressure bar beam is provided with a transverse channel, a positioning key is embedded in the transverse channel, and the rear side of the pressure bar is provided with a key slot matched with the positioning key; the upper parts of two sides of the rear part of the stand are provided with beam body supporting seats, the upper sides of the beam body supporting seats are connected with connecting seats through bolts, long holes matched with the bolts are formed in the connecting seats, the rear parts of the pressure bars are hinged to the connecting seats, the beam body supporting seats are fixedly connected with vertical fixing plates positioned behind the connecting seats, the vertical fixing plates are penetrated with adjusting bolts, and the rear ends of the connecting seats are provided with threaded holes in threaded connection with the adjusting bolts; the front ends of the adjusting seats are hinged to the beam body supporting seats, two ends of the single-roller beam are connected to the adjusting seats through bolts, long holes matched with the bolts are formed in the two ends of the single-roller beam, a top wheel is mounted at the rear end of the adjusting seat and leans against the cams below the top wheel, and the cams on the two side beam body supporting seats are connected through a connecting shaft; a double-roller beam which is positioned in front of the single-roller beam and can move back and forth relative to the machine base is arranged above the front part of the machine base, and a double-driving roller is arranged on the double-roller beam; one end of the connecting shaft is connected with a swing arm, a connecting rod is connected between corresponding ends of the swing arm and the double-roller beam, and two ends of the connecting rod are respectively hinged to free ends of the double-roller beam and the swing arm.

2. The fixed thickness structure of the shaftless rotary cutter according to claim 1, wherein: the single driving roller comprises a roller shaft positioned at the center, the transmission disc is sleeved on the roller shaft, tooth grooves are formed in the peripheral portion of the roller shaft along the axial direction, and protruding teeth matched with the tooth grooves are formed in the edge portion of an inner hole of the transmission disc.

3. The fixed thickness structure of the shaftless rotary cutter according to claim 2, wherein: a limiting ring sleeved on the roll shaft is arranged between two adjacent transmission discs; external thread parts are arranged at two ends of the roll shaft, and pressing rings which compress the transmission disc towards the middle are connected with threads.

4. The fixed thickness structure of the shaftless rotary cutter according to claim 1, wherein: the driving motor and the reduction gearbox are installed on the rear side of the single-roller beam, two ends of the single-roller beam are rotatably installed on bearing seats on the front side of Shan Gunliang, a rotating shaft is rotatably installed on the rear side of one end of the single-roller beam, the power output end of the reduction gearbox is in transmission connection with the rotating shaft through the universal coupling, and the rotating shaft is in transmission connection with the single-roller beam through the synchronous belt and the synchronous belt pulley.

5. A method of operating a fixed thickness structure of a shaftless rotary cutting machine according to claim 1, wherein: the wood is pressed backwards on the shaftless rotary lathe and is against the blade and the single driving roller, the single driving roller rotates to drive the wood to rotate for rotary lathe, and in the rotary lathe process, the pressure bar presses the wood and stabilizes the jumping or shaking of the wood, and locks the distance between the pressure bar and the cutting edge, so that the plate thickness is controlled within the standard precision.