CN217256894U - Numerical control device for milling side surface of bamboo strip - Google Patents

Abstract

The utility model relates to a bamboo strip side mills numerical control device. It has solved the problem that the width between the milling cutter is difficult to nimble regulation among the prior art. The numerical control cutting machine comprises a box body supporting mechanism, wherein two longitudinally-arranged eccentric sleeve bodies are symmetrically arranged on the box body supporting mechanism, a cutting knife shaft which is eccentrically arranged with the center of the eccentric sleeve body penetrates through the eccentric sleeve bodies, cutting knives are installed at the upper ends of the cutting knife shafts, a cutting channel is formed between the two cutting knives, the cutting knife shafts are connected with a cutting knife power mechanism, a knife interval adjusting numerical control mechanism is arranged in the box body supporting mechanism, and the knife interval adjusting numerical control mechanism is a gear type rotation driving mechanism which is in transmission connection with at least one eccentric sleeve body and can drive the two eccentric sleeve bodies to move in opposite directions. The utility model has the advantages that: the width of a cutting channel between the milling cutters can be flexibly determined, the using effect is good, and the operation is convenient and fast.

Description

Numerical control device for milling side surface of bamboo strip

Technical Field

The utility model relates to a bamboo strip mills equipment technical field, concretely relates to bamboo strip side mills numerical control device.

Background

In order to mill the upper surface, the lower surface and the two side surfaces of the bamboo batten, a bamboo batten milling machine is developed and produced, after green skin and yellow skin of the bamboo are milled and removed, the bamboo batten milling machine is also provided with a set of milling mechanisms for milling the two side surfaces of the bamboo batten, and before the milling mechanisms for milling the two side surfaces of the bamboo batten, the center position of the width of the bamboo batten needs to be determined on a center line between milling cutters on the two sides. If the center position of the width of the bamboo strip cannot be accurately determined on the center line between the milling cutters at the two sides, a large amount of available bamboo raw material can be milled due to uneven milling. In the prior art, a mechanism for determining the center position of the width of the bamboo strip on the center line between the milling cutters at two sides is to mount side stop irons in front of the milling cutters at two sides, and a spring and a sliding rod are arranged behind the stop irons so as to adjust the centers of the bamboo strips with different widths. The arrangement has the advantages that the structure is not sensitive enough in movement and has a clamping phenomenon, the prepressing force of the spring is difficult to adjust the same, bamboo chips are deviated, available bamboo raw materials are milled, and waste is caused; in addition, the width between the existing bamboo strip milling cutters is difficult to flexibly adjust according to the width of the bamboo strips, and the using effect is influenced.

In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, chinese patent literature discloses a bamboo cane self-centering mechanism [ CN200620141788.9] of a bamboo cane milling machine, which includes a bracket mounted on a machine body, a bamboo cane input port, and a bamboo cane traveling platen, wherein an automatic adjustment mechanism is provided on a side surface of the bracket, the automatic adjustment mechanism has a pair of gears engaged with each other and having the same number of teeth, the gears are mounted at upper ends of respective gear shafts, lower ends of the gear shafts are mounted at rear ends of respective swing arms, front ends of the swing arms are mounted with respective guide wheel shafts and guide wheels, and tension springs are connected between the guide wheel shafts.

The scheme solves the problems that in the prior art, a bamboo splint positioning mechanism in the bamboo splint milling process moves sensitively and the pre-pressure is difficult to adjust to a certain extent, but the scheme still has a plurality of defects, such as: the width between the bamboo splint milling cutters is difficult to flexibly adjust according to the width of the bamboo splints, and the using effect is influenced.

Disclosure of Invention

The utility model aims at the above-mentioned problem, provide a reasonable in design, use nimble bamboo splint side and mill numerical control device.

In order to achieve the above purpose, the utility model adopts the following technical proposal: the numerical control device for milling the side surface of the bamboo strip comprises a box body supporting mechanism, wherein two eccentric sleeve bodies which are longitudinally arranged are symmetrically arranged on the box body supporting mechanism, a cutting cutter shaft which is eccentrically arranged with the center of the eccentric sleeve body penetrates through the eccentric sleeve bodies, a cutting cutter is installed at the upper end of the cutting cutter shaft, a cutting channel is formed between the two cutting cutters, the cutting cutter shaft is connected with a cutting cutter power mechanism, a cutter interval adjusting numerical control mechanism is arranged in the box body supporting mechanism, and the cutter interval adjusting numerical control mechanism is a gear type rotation driving mechanism which is in transmission connection with at least one eccentric sleeve body and can drive the two eccentric sleeve bodies to move in opposite directions. The numerical control mechanism for adjusting the distance between the cutters and connected with the at least one eccentric sleeve body in a transmission mode is arranged in the box body supporting mechanism, the numerical control mechanism for adjusting the distance between the cutters is used for driving the two eccentric sleeve bodies to move in opposite directions, so that the purpose of adjusting the width of a cutting channel is achieved, flexible adjustment can be performed according to the width specification of bamboo strips and the cutting requirement, and the using effect is good.

In foretell bamboo strip side mills numerical control device, box supporting mechanism includes upper support plate and the lower support plate that corresponds the setting from top to bottom, and the end runs through upper support plate and lower support plate respectively and installs respectively on upper support plate and lower support plate through the bearing about the eccentric bushing body, is equipped with preceding curb plate between upper support plate one side and the lower support plate one side, is equipped with the posterior lateral plate between upper support plate opposite side and the lower support plate opposite side.

In the numerical control device for milling the side surface of the bamboo strip, the upper supporting plate, the lower supporting plate, the front side plate and the rear side plate are connected into an integral structure or detachably connected.

In the numerical control device for milling the side face of the bamboo batten, the cutter spacing adjustment numerical control mechanism comprises a numerical control motor which is vertically arranged in the box body supporting mechanism through the installation fixing structure, a motor gear is installed at the upper end of the numerical control motor, driven gears are respectively arranged on the circumferential outer sides of the two eccentric sleeve bodies, a gear pair is formed between the motor gear and the two driven gears, and when the numerical control motor drives the motor gear to rotate, the two driven gears move in opposite directions and drive the eccentric sleeve bodies to move in opposite directions. The driven gears are driven by the motor gears to synchronously rotate in opposite directions, so that the width between the cutting knife shafts is changed, and the linkage effect is good.

In the numerical control device for milling the side surface of the bamboo strip, the mounting and fixing structure comprises a numerical control motor mounting seat for mounting a numerical control motor, and the numerical control motor mounting seat is fixedly arranged on the inner side of the front side plate or the inner side of the rear side plate. The numerical control motor mounting seat is used for fixing the numerical control motor, and the stability in working is ensured.

In the numerical control device for milling the side surface of the bamboo batten, the motor gear is meshed with any one driven gear of the two driven gears, and the two driven gears are meshed with each other; or the motor gear is arranged between the two driven gears and is meshed with the two driven gears simultaneously. Can be flexibly installed according to actual conditions, and different technical effects are realized.

In the numerical control device for milling the side face of the bamboo strip, the power mechanism of the cutting tool comprises a three-phase asynchronous motor, the output end of the three-phase asynchronous motor is provided with a rotating belt wheel, the rotating belt wheel is connected with a linkage belt wheel arranged at the bottom of the cutting cutter shaft through a power transmission belt, one end of the power transmission belt is sleeved on the linkage belt wheel far away from the three-phase asynchronous motor, one side of the power transmission belt penetrates through the two linkage belt wheels, and the linkage belt wheel close to the three-phase asynchronous motor is in close contact with the outer wall of the power transmission belt. The arrangement can ensure that the linkage belt wheel keeps synchronous rotation.

In the numerical control device for milling the side surface of the bamboo strip, the upper supporting plate is symmetrically provided with the left floating plate and the right floating plate, floating limiting components for limiting materials are arranged on the left floating plate and the right floating plate and positioned at two sides of the corresponding eccentric sleeve body, and a cutting abdicating notch for exposing a cutting tool is arranged between the floating limiting components positioned at the same side; the floating limiting assembly comprises a feeding limiting plate, one side of the feeding limiting plate is flush with the cutting channel, one side, far away from the cutting channel, of the feeding limiting plate is connected with a positioning seat through an elastic connecting rod, the positioning seat is fixedly arranged on the corresponding left floating plate and the right floating plate respectively, and the floating limiting assembly is symmetrically arranged on two sides of the cutting channel. The left floating plate and the right floating plate can synchronously rotate along with the rotation of the eccentric sleeve body, so that the synchronous adjustment of the cutting channel is realized.

In the numerical control device for milling the side surface of the bamboo strip, floating eccentric shafts for connecting the upper supporting plate and the corresponding left floating plate or right floating plate are arranged on two sides of the cutting cutter shaft, an upper bearing is arranged at the upper end of each floating eccentric shaft, a lower bearing is arranged at the lower end of each floating eccentric shaft, the lower bearings are arranged in the upper supporting plates, and the upper bearings are arranged in the corresponding left floating plates or right floating plates.

In the numerical control device for milling the side surface of the bamboo strip, the eccentric amount of the floating eccentric shaft is the same as that of the eccentric sleeve body, and the left floating plate and the right floating plate are supported by the corresponding floating eccentric shaft and the cutting knife shaft and move synchronously.

Compared with the prior art, the utility model has the advantages of: the cutting machine has the advantages that the design is reasonable, the structure is simple, the cutting channels among the cutting tools can be flexibly and synchronously adjusted in a numerical control mode, the purpose of width fixing can be achieved, cutting of various oblique lines and curves can be achieved, different cutting effects are met, the flexibility is good, and the cutting effect is good; meanwhile, the processing is convenient, the disassembly and the assembly are flexible, the box body supporting mechanism can be changed into an integrated structure, the shape is stable, and the shock absorption performance is good.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the bin support mechanism of the present invention;

fig. 3 is a schematic view of a partial structure in the present invention;

fig. 4 is an exploded view of a partial structure in the present invention;

fig. 5 is a schematic structural view of the floating limiting assembly of the present invention.

In the figure, a box body supporting mechanism 1, an upper supporting plate 11, a lower supporting plate 12, a front side plate 13, a rear side plate 14, a left floating plate 15, a right floating plate 16, a bearing 17, an eccentric sleeve body 2, a cutting knife shaft 21, a cutting knife 22, a cutting channel 23, a cutting knife power mechanism 3, a three-phase asynchronous motor 31, a rotating belt pulley 32, a power transmission belt 33, a linkage belt pulley 34, a knife interval adjusting numerical control mechanism 4, a numerical control motor 41, a motor gear 42, a driven gear 43, an installation and fixing structure 5, a numerical control motor installation seat 51, a floating limiting assembly 6, a cutting abdicating notch 61, a feeding limiting plate 62, an elastic connecting rod 63, a positioning seat 64, a floating eccentric shaft 7, an upper bearing 71 and a lower bearing 72.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-5, the numerical control device for milling the side surface of a bamboo strip includes a box supporting mechanism 1, two longitudinally arranged eccentric sleeves 2 are symmetrically arranged on the box supporting mechanism 1, a cutting knife shaft 21 eccentrically arranged with the center of the eccentric sleeve 2 penetrates through the eccentric sleeve 2, a cutting knife 22 is installed at the upper end of the cutting knife shaft 21, a cutting channel 23 is formed between the two cutting knives 22, the cutting knife shaft 21 is connected with a cutting knife power mechanism 3, a knife interval adjusting numerical control mechanism 4 is arranged in the box supporting mechanism 1, and the knife interval adjusting numerical control mechanism 4 is a gear type rotation driving mechanism which is in transmission connection with at least one eccentric sleeve 2 and can drive the two eccentric sleeves 2 to move in opposite directions. The eccentric sleeve body 2 is eccentrically provided with a cutting knife shaft 21 with cutting knives 22, and the numerical control mechanism 4 is adjusted by the knife interval to drive the eccentric sleeve body 2 to move oppositely, so that the size of a cutting channel 23 between the cutting knives 22 is changed.

Wherein, the box supporting mechanism 1 includes upper supporting plate 11 and lower supporting plate 12 that correspond the setting from top to bottom, and the upper and lower end of the eccentric cover body 2 runs through upper supporting plate 11 and lower supporting plate 12 respectively and installs on upper supporting plate 11 and lower supporting plate 12 through bearing 17 respectively, is equipped with preceding curb plate 13 between upper supporting plate 11 one side and lower supporting plate 12 one side, is equipped with posterior lateral plate 14 between upper supporting plate 11 opposite side and the lower supporting plate 12 opposite side. The box body supporting mechanism 1 is cast iron, has stable shape and good shock absorption.

The upper support plate 11, the lower support plate 12, the front side plate 13 and the rear side plate 14 are seen to be connected as a one-piece structure or detachably connected. The disassembly and assembly are flexible, and the processing is convenient.

Obviously, the tool spacing adjustment digital control mechanism 4 includes a digital control motor 41 vertically arranged in the case supporting mechanism 1 through the mounting and fixing structure 5, a motor gear 42 is mounted at an upper end of the digital control motor 41, driven gears 43 are respectively arranged on circumferential outer sides of the two eccentric sleeves 2, a gear pair is formed between the motor gear 42 and the two driven gears 43, and when the digital control motor 41 drives the motor gear 42 to rotate, the two driven gears 43 move towards each other and drive the eccentric sleeves 2 to move towards each other.

Further, the mounting and fixing structure 5 comprises a numerical control motor mounting seat 51 for mounting the numerical control motor 41, and the numerical control motor mounting seat 51 is fixedly arranged on the inner side of the front side plate 13 or the rear side plate 14. The fixing position of the motor mounting seat 51 is selected according to the position of the numerical control motor mounting seat 51.

Specifically, the motor gear 42 is meshed with any one driven gear 43 of the two driven gears 43, and the two driven gears 43 are meshed with each other; alternatively, the motor gear 42 is provided between the two driven gears 43 and is simultaneously meshed with the two driven gears 43, respectively, and no connection relationship is generated between the two driven gears 43. When the motor gear 42 is meshed with any one driven gear 43 of the two driven gears 43, one driven gear 43 rotates anticlockwise, and the other driven gear 43 rotates clockwise, namely rotates reversely, so that the two sides of the cutting channel 23 generate the same width change at the same time; when the motor gear 42 is disposed between the two driven gears 43 and simultaneously meshes with the two driven gears 43, the two driven gears 43 rotate in the same direction, so that different width changes can be simultaneously generated at both sides of the cutting path 23.

Furthermore, the cutting tool power mechanism 3 includes a three-phase asynchronous motor 31, the output end of the three-phase asynchronous motor 31 is provided with a rotating belt wheel 32, the rotating belt wheel 32 is connected with a linkage belt wheel 34 arranged at the bottom of the cutting knife shaft 21 through a power transmission belt 33, one end of the power transmission belt 33 is sleeved on the linkage belt wheel 34 far away from the three-phase asynchronous motor 31, one side of the power transmission belt 33 is arranged between the two linkage belt wheels 34 in a penetrating manner, and the linkage belt wheel 34 close to the three-phase asynchronous motor 31 is in close contact with the outer wall of the power transmission belt 33. The three-phase asynchronous motor 31 can be replaced by a direct current motor or a numerical control motor according to requirements and can be applied here, and the power transmission belt 33 can be applied in various ways, such as a flat belt and a flat belt wheel, a triangular belt and a triangular belt wheel, and a synchronous belt and a synchronous wheel according to requirements.

More specifically, a left floating plate 15 and a right floating plate 16 are symmetrically arranged on the upper supporting plate 11, floating limiting assemblies 6 for limiting the material are arranged on the left floating plate 15 and the right floating plate 16 and positioned at two sides of the corresponding eccentric sleeve body 2, and a cutting abdicating notch 61 for exposing the cutting tool 22 is arranged between the floating limiting assemblies 6 positioned at the same side; the floating limiting assembly 6 comprises a feeding limiting plate 62, one side of the feeding limiting plate 62 is flush with the cutting channel 23, one side, far away from the cutting channel 23, of the feeding limiting plate 62 is connected with a positioning seat 64 through an elastic connecting rod 63, the positioning seat 64 is fixedly arranged on the corresponding left floating plate 15 and the right floating plate 16 respectively, and the floating limiting assembly 6 is symmetrically arranged on two sides of the cutting channel 23. A processing channel for materials to pass through is formed between the floating limiting assemblies 6 on the two sides, and the materials are flexibly compressed and positioned.

In detail, floating eccentric shafts 7 for connecting the upper support plate 11 and the corresponding left floating plate 15 or right floating plate 16 are disposed on both sides of the cutting arbor 21, an upper bearing 71 is disposed on the upper end of the floating eccentric shaft 7, a lower bearing 72 is disposed on the lower end, the lower bearing 72 is disposed in the upper support plate 11, and the upper bearing 71 is disposed in the corresponding left floating plate 15 or right floating plate 16. The floating eccentric shaft 7 and the cutting knife shaft 21 form a three-shaft synchronous mode, when the eccentric sleeve body 2 rotates synchronously, the upper bearing 71 can make relative adjustment according to the eccentric amount, and the left floating plate 15 or the right floating plate 16 can also be adjusted synchronously.

Preferably, the eccentric amount of the floating eccentric shaft 7 is the same as that of the eccentric sleeve body 2, and the left floating plate 15 and the right floating plate 16 are supported by the corresponding floating eccentric shaft 7 and the cutting knife shaft 21 in three shafts and move synchronously. The floating eccentric shafts 7 enable the corresponding left floating plates 15 or right floating plates 16 to move stably and not to rotate, the number of the floating eccentric shafts 7 can be increased or decreased according to needs, and the supporting and running are more reliable as the number is larger.

In summary, the principle of the present embodiment is: the cutting knife shafts 21 with the cutting tools 22 are eccentrically arranged in the eccentric sleeve body 2, so that cutting channels 23 are formed among the cutting knife shafts 21, driven gears 43 positioned on the circumferential outer wall of the eccentric sleeve body 2 are driven to synchronously move in opposite directions by utilizing motor gears 42 on a numerical control motor 41 according to material specifications or cutting requirements, so that the width of the cutting channels 23 among the cutting tools 22 is changed, different cutting purposes are realized, a left floating plate 15 and a right floating plate 16 are respectively arranged on the upper supporting plate 11 and positioned on two sides of the cutting channels 23, the floating eccentric shaft 7 is utilized for movable positioning, and when the eccentric sleeve body 2 rotates to adjust the width of the cutting channels 23, the synchronous adjusting positions of the left floating plate 15 and the right floating plate 16 keep the consistency of the cutting channels.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the box supporting mechanism 1, the upper supporting plate 11, the lower supporting plate 12, the front side plate 13, the rear side plate 14, the left floating plate 15, the right floating plate 16, the bearing 17, the eccentric sleeve body 2, the cutting knife shaft 21, the cutting knife 22, the cutting channel 23, the cutting knife power mechanism 3, the three-phase asynchronous motor 31, the rotating pulley 32, the power transmission belt 33, the linkage pulley 34, the knife interval adjusting numerical control mechanism 4, the numerical control motor 41, the motor gear 42, the driven gear 43, the mounting and fixing structure 5, the numerical control motor mounting base 51, the floating limit assembly 6, the cutting abdicating notch 61, the feeding limit plate 62, the elastic connecting rod 63, the positioning base 64, the floating eccentric shaft 7, the upper bearing 71, the lower bearing 72, and the like are used more often, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (10)

1. A numerical control device for milling the side surface of a bamboo batten comprises a box body supporting mechanism (1), two longitudinally arranged eccentric sleeve bodies (2) are symmetrically arranged on the box body supporting mechanism (1), a cutting knife shaft (21) which is eccentrically arranged with the center of the eccentric sleeve body (2) penetrates through the eccentric sleeve body (2), a cutting knife (22) is arranged at the upper end of the cutting knife shaft (21), a cutting channel (23) is formed between the two cutting tools (22), the cutting knife shaft (21) is connected with a cutting tool power mechanism (3), it is characterized in that a cutter spacing adjusting numerical control mechanism (4) is arranged in the box body supporting mechanism (1), and the cutter spacing adjustment numerical control mechanism (4) is a gear type rotation driving mechanism which is in transmission connection with at least one eccentric sleeve body (2) and can drive the two eccentric sleeve bodies (2) to move in opposite directions.

2. The numerical control device for milling the side surface of the bamboo strip as claimed in claim 1, wherein the box supporting mechanism (1) comprises an upper supporting plate (11) and a lower supporting plate (12) which are correspondingly arranged up and down, the upper end and the lower end of the eccentric sleeve body (2) respectively penetrate through the upper supporting plate (11) and the lower supporting plate (12) and are respectively installed on the upper supporting plate (11) and the lower supporting plate (12) through bearings (17), a front side plate (13) is arranged between one side of the upper supporting plate (11) and one side of the lower supporting plate (12), and a rear side plate (14) is arranged between the other side of the upper supporting plate (11) and the other side of the lower supporting plate (12).

3. The numerical control device for milling the side surface of the bamboo strip as claimed in claim 2, wherein the upper supporting plate (11), the lower supporting plate (12), the front side plate (13) and the rear side plate (14) are connected into an integral structure or detachably connected.

4. The numerical control device for milling the side surface of the bamboo batten according to claim 2 or 3, wherein the cutter spacing adjusting numerical control mechanism (4) comprises a numerical control motor (41) vertically arranged in the box body supporting mechanism (1) through a mounting and fixing structure (5), a motor gear (42) is mounted at the upper end of the numerical control motor (41), driven gears (43) are respectively arranged on the circumferential outer sides of the two eccentric sleeve bodies (2), a gear pair is formed between the motor gear (42) and the two driven gears (43), and when the numerical control motor (41) drives the motor gear (42) to rotate, the two driven gears (43) move oppositely and drive the eccentric sleeve bodies (2) to move oppositely.

5. The numerical control device for milling the side surface of the bamboo strip as claimed in claim 4, wherein the mounting and fixing structure (5) comprises a numerical control motor mounting seat (51) for mounting a numerical control motor (41), and the numerical control motor mounting seat (51) is fixedly arranged on the inner side of the front side plate (13) or the rear side plate (14).

6. The numerical control device for milling the side surface of the bamboo strip as claimed in claim 4, wherein the motor gear (42) is meshed with any one driven gear (43) of two driven gears (43), and the two driven gears (43) are meshed with each other; or the motor gear (42) is arranged between the two driven gears (43) and is meshed with the two driven gears (43) simultaneously.

7. The numerical control device for milling of the side face of the bamboo strip as claimed in claim 1, wherein the cutting tool power mechanism (3) comprises a three-phase asynchronous motor (31), the output end of the three-phase asynchronous motor (31) is provided with a rotating belt wheel (32), the rotating belt wheel (32) is connected with a linkage belt wheel (34) arranged at the bottom of the cutting knife shaft (21) through a power transmission belt (33), one end of the power transmission belt (33) is sleeved on the linkage belt wheel (34) far away from the three-phase asynchronous motor (31), one side of the power transmission belt (33) is arranged between the two linkage belt wheels (34) in a penetrating mode, and the linkage belt wheel (34) close to the three-phase asynchronous motor (31) is in close contact with the outer wall of the power transmission belt (33).

8. The numerical control device for milling the side surface of the bamboo strip according to claim 3, wherein a left floating plate (15) and a right floating plate (16) are symmetrically arranged on the upper supporting plate (11), floating limiting assemblies (6) used for limiting materials are arranged on the left floating plate (15) and the right floating plate (16) and positioned on two sides of the corresponding eccentric sleeve body (2), and a cutting abdicating notch (61) for exposing a cutting tool (22) is arranged between the floating limiting assemblies (6) positioned on the same side; unsteady spacing subassembly (6) include that one side flushes feed limiting plate (62) that sets up with cutting passageway (23), feed limiting plate (62) keep away from one side of cutting passageway (23) and be connected with positioning seat (64) through elastic connection pole (63), and positioning seat (64) are fixed respectively to be set up on the board (16) are floated on the left side that corresponds and the board (15) are floated on the right side, unsteady spacing subassembly (6) be the symmetry setting in cutting passageway (23) both sides.

9. The numerical control device for milling the side surface of the bamboo strip as claimed in claim 8, wherein two sides of the cutting cutter shaft (21) are provided with floating eccentric shafts (7) for connecting the upper bearing plate (11) with the corresponding left floating plate (15) or right floating plate (16), the upper ends of the floating eccentric shafts (7) are provided with upper bearings (71), the lower ends of the floating eccentric shafts are provided with lower bearings (72), the lower bearings (72) are arranged in the upper bearing plate (11), and the upper bearings (71) are arranged in the corresponding left floating plate (15) or right floating plate (16).

10. The numerical control device for milling the side surface of the bamboo strip as claimed in claim 9, wherein the eccentric amount of the floating eccentric shaft (7) is the same as that of the eccentric sleeve body (2), and the left floating plate (15) and the right floating plate (16) are supported by the corresponding floating eccentric shaft (7) and the corresponding cutting knife shaft (21) in a three-axis manner and move synchronously.

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