CN109773895B - Efficient milling device for preventing edge collapse of facing chipboard and processing method thereof - Google Patents
Efficient milling device for preventing edge collapse of facing chipboard and processing method thereof Download PDFInfo
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Abstract
The invention provides an edge breakage preventing efficient milling device for a veneer shaving board and a processing method thereof, wherein a double-end mill is used for milling an inlet part of a protecting end head by adopting a direct milling mode, an end part is pre-cut and milled, an end part is finish-milled, and an inlet part of the finish-milled end head is milled by adopting a direct milling mode; the cutter shaft configuration is reduced from a 5-station 10 shaft or a 6-station 12 shaft to a 4-station 6 shaft, so that the milling efficiency is improved; milling the inlet part of the edge end of the veneer shaving board by adopting a first milling cutter on the double-end milling, pre-cutting veneers and core layer shaving boards on the upper surface and the lower surface of the edge of the veneer shaving board respectively by adopting two second milling cutters, and then adopting two third milling cutters to finish the veneers on the upper and lower surfaces of the edge of the veneer and the core layer shaving board respectively, and finally adopting a fourth milling cutter to finish and mill the inlet part of the end head of the edge of the veneer. Thus, the surface quality of the end part of the veneer facing chipboard is improved, and the phenomena of veneer edge breakage, burrs, pits and the like of the chipboard are avoided.
Description
Technical Field
The invention belongs to the field of plate furniture production milling, and relates to an edge breakage preventing efficient milling device for a veneer shaving board and a processing method thereof.
Background
In recent years, as the loss of wood increases, existing wood storage is insufficient to support mass production of solid wood furniture. However, with the continuous development of society, the demand of furniture is increasing day by day, and in order to solve the furniture demand problem, people begin to use panel furniture using artificial boards as raw materials. At present, the plate furniture is mainly trimmed by double-end milling, along with the change of the market and the continuous emergence of new products, the original double-end milling cutter shaft configuration mode can not meet the milling requirement and milling quality of the products, the number of cutter shafts is changed from the initial configuration of 4-station 8 shafts to 5-station 10 shafts or 6-station 12 shafts, and the milling efficiency is lowered due to the increase of the number of cutter shafts; when the milling cutter is used for trimming the veneer shaving board, the veneer has the problem of edge breakage, so that the edge sealing position is not attractive; burrs can appear on the thick and thin shaving layers, and when edge sealing glue is rolled, the edge sealing strips are not tightly bonded; the thick and thin wood shavings layer can also generate pit phenomenon, and glue solution permeates into the shaving board when the edge sealing glue is coated by roller, so that the edge sealing strip is easy to fall off.
Disclosure of Invention
The invention aims to solve the technical problems that when a veneer facing chipboard is trimmed by double-end milling, the milling efficiency is low due to the fact that the number of cutter shafts is large; secondly, when double-end milling is used for trimming the veneer facing chipboard, burrs and pits appear on the veneer edge-breaking layer and the thick and thin shaving layer, so that the edge-sealing position of the plate furniture is not attractive, and the product reject ratio is too high.
In order to solve the problems, the invention provides the following technical scheme:
the invention provides an edge breakage preventing efficient milling device for a veneer shaving board, wherein double-end milling is set to be 4-station 6 cutter shafts, each cutter shaft is provided with a corresponding milling cutter, and the milling cutters are respectively as follows: the milling cutter comprises a first milling cutter (6) used for carrying out down milling protection on the end inlet part of a facing chipboard (1), a second milling cutter (8) used for carrying out back milling pre-cutting on the end part of the facing chipboard (1), a third milling cutter (10) used for carrying out back milling finishing on the end part of the facing chipboard (1), and a fourth milling cutter (12) used for carrying out down milling finishing on the end inlet part of the facing chipboard (1).
The invention also provides a high-efficiency milling method for preventing the edge collapse of the veneer chipboard, which comprises the steps of adopting a forward milling to protect the inlet part of the end head on the double-end milling, adopting an end pre-cutting milling, adopting an end finishing milling, and adopting a forward milling to finish the inlet part of the end head; the method can reduce the cutter shaft configuration from a 5-station 10 shaft or a 6-station 12 shaft to a 4-station 6 shaft, so that the milling efficiency is improved; and the problems that when the milling cutter is used for trimming the veneer shaving board, the veneer is broken, burrs and pits appear on the shaving board, the edge sealing position of the plate furniture is not attractive, and the reject ratio of the product is too high are avoided. Configuring a cutter shaft of the double-end milling machine into a 4-station 6 cutter shaft; firstly milling the inlet part of the edge end head of the veneer shaving board by adopting a first milling cutter (6) on the double-end milling, then pre-cutting veneers and core shaving boards on the upper surface and the lower surface of the edge of the veneer shaving board respectively by adopting two second milling cutters (8), and then, two third milling cutters (10) are adopted to finish the veneers on the upper and lower surfaces of the edge of the veneer and the core layer shaving board respectively, and finally, a fourth milling cutter (12) is adopted to finish and mill the inlet part of the end head of the edge of the veneer. Therefore, the surface quality of the end part of the veneer facing chipboard can be improved, and the phenomena of veneer edge breakage, burrs, pits and the like of the chipboard are avoided.
Preferably, the first milling cutter (6) for milling the inlet part of the protecting end is used for milling the whole end part of the veneer shaving board, the number of teeth of the first milling cutter (6) is 6, and the rotating speed of a cutter shaft is 3000r/min. Milling the whole end part of the veneer chipboard according to the feeding direction (14) of the veneer chipboard and the main movement direction (7) of the first milling cutter in a down milling mode, wherein the milling depth is 2.5mm; the cutting edge (15) of the first milling cutter and the main movement direction (7) of the first milling cutter are perpendicular to the extending direction of the single-plate fiber (5), and the cutting mode is end-to-end cutting; the design can avoid the phenomenon that the first milling cutter (6) cuts into the end from the end to cause end tearing when the end is precut and milled, the precut depth of the end is 2mm, the depth of the inlet part of the end is 2.5mm, and the inlet depth of the end is larger than the precut depth of the end, so that the single-plate fiber (5) is prevented from tearing to collapse. Because the milling depth is large, the rotating speed of the cutter shaft is 3000r/min, the number of teeth is 6, and the overlarge feeding amount of each tooth is avoided due to the lower rotating speed of the cutter shaft, so that each cutter tooth exceeds the rated power, and the cutter teeth are broken and damaged.
Preferably, the end pre-cutting milling adopts two second milling cutters (8), and the two second milling cutters (8) are used for staggered milling to pre-cut the veneer and the thick and thin shaving layers on the upper surface and the lower surface of the edge of the veneer; each second milling cutter has a milling depth of about 10mm from the veneer layer to the rough shaving layer, and a milling length (i.e., along the fiber direction from the end) of 2mm; the number of teeth of the second milling cutter (8) is 6, and the rotating speed of the cutter shaft is 3000r/min. According to the veneer facing chipboard feeding direction (14) and the main movement direction (9) of the second milling cutter, the milling mode is reverse milling; the surface of the veneer facing chipboard adopts veneer facing, the cutting edge (16) of the second milling cutter is parallel to the extending direction of the veneer fibers (5), the extending direction of the veneer fibers (5) is perpendicular to the main moving direction (9) of the milling cutter, and the cutting mode is transverse cutting. The design is that the milling depth is large, so that the rotating speed of the cutter shaft is 3000r/min, the number of teeth is 6, and the overlarge feeding amount of each tooth is avoided due to the lower rotating speed of the cutter shaft, so that each cutter tooth exceeds the rated power, and the cutter teeth are broken and damaged. Because the veneer chipboard is of a symmetrical structure, the veneer, the fine shaving layer and the coarse shaving layer are respectively arranged from the surface to the inside. When a milling cutter is used for milling the veneer shaving board, the milling workload is large, so that the milling cutter is adopted to mill the veneer shaving board in a staggered manner in order to avoid too fast cutter abrasion and uneven surface edge breakage caused by too large cutting force, the milling surface quality is ensured, and the milling efficiency is also improved.
Preferably, the end finishing milling adopts two third milling cutters (10), and the two third milling cutters are used for staggered milling to respectively finish the veneer and the thick and thin shaving layers on the upper surface and the lower surface of the edge of the veneer; each third milling cutter is used for milling from the single plate to the rough shaving layer, the milling depth is about 10mm, and the milling depth is 1mm; the number of teeth of the third milling cutter (10) is 6, and the rotating speed of the cutter shaft is 6000r/min. According to the veneer facing chipboard feeding direction (14) and the third milling cutter main movement direction (11), the milling mode is reverse milling; the cutting edge (17) of the third milling cutter and the main movement direction (11) of the third milling cutter are perpendicular to the extending direction of the single-plate fiber (5), and the cutting mode is end-to-end cutting. The design is that the milling depth is lower, the rotating speed of the cutter shaft is accelerated, and the feeding amount of each tooth is shortened, so that the higher milling surface quality is obtained. Because the veneer has a symmetrical structure, the veneer, the fine shavings and the coarse shavings are respectively arranged from the surface to the inside. Because the milling length is longer, the cutter is prevented from being worn too fast and the surface is not smooth and broken, which are caused by too large cutting force, so that two integral milling cutters are adopted to stagger and mill the veneer facing chipboard. By doing so, the milling surface quality is guaranteed, and the milling efficiency is improved.
Preferably, a fourth milling cutter (12) is used for milling the inlet part of the finish end head by direct milling, the number of teeth of the fourth milling cutter (12) is 6, and the rotating speed of a cutter shaft is 6000r/min. Milling the whole end part of the veneer shaving board according to the feeding direction (14) of the veneer shaving board and the main movement direction (13) of the fourth milling cutter in a down milling mode, wherein the milling depth is 0.5mm, and finishing and milling the inlet part of the end; the cutting edge (18) of the fourth milling cutter and the main movement direction (13) of the milling cutter are perpendicular to the extending direction of the single-plate fiber (5), and the cutting mode is end-to-end cutting. The design is that the milling depth is 2.5mm when the inlet part of the protecting end is milled, and the milling allowance of 0.5mm is reserved, so that the milling surface of the end part of the veneer facing chipboard is flat after the inlet part of the protecting end is finished by the direct milling. Because the milling depth is lower, the rotating speed of the cutter shaft is increased, and the feeding quantity of each tooth is shortened, so that higher milling surface quality is obtained.
Preferably, a first milling cutter (6) for milling the inlet part of the forward milling protection end head adopts a pneumatic control jumping cutter shaft, and after the end head part is milled, the cutter shaft automatically jumps to complete milling work.
Preferably, a fourth milling cutter (12) for milling the inlet part of the finish end head is pneumatically controlled to jump, and after the end head part is milled, the milling work is completed by automatic jumping.
Preferably, the first milling cutter (6) for milling the inlet part of the forward milling protection end and the fourth milling cutter (12) for milling the inlet part of the forward milling finishing end are composed of five parts of cutter teeth, and the five parts of cutter teeth respectively mill corresponding to different parts of the veneer facing chipboard; the five-part cutter teeth are respectively a first part cutter tooth I (21), a second part cutter tooth I (22), a third part cutter tooth I (23), a fourth part cutter tooth I (24) and a fifth part cutter tooth I (25); the profile positions of the first part cutter tooth I (21) and the fifth part cutter tooth I (25) are consistent, a single plate part of the single plate veneer shaving board is milled, the included angle between the central line of the first part cutter tooth I (21) and the central line I (19) of the milling cutter shaft, and the included angle between the central line of the fifth part cutter tooth I (25) and the central line I (19) of the milling cutter shaft are 15 degrees (clockwise), and the front angles 20 degrees, the rear angles 13 degrees and the wedge angles 57 degrees of the first part cutter tooth I (21) and the fifth part cutter tooth I (25) are all the same; milling a rough shaving layer of the veneer-faced chipboard by the third part of cutter teeth I (23), wherein an included angle between the central line of the third part of cutter teeth I (23) and the central line of the milling cutter shaft I (19) is 15 degrees (clockwise), and the front angle of the third part of cutter teeth I (23) is 25 degrees, the rear angle of the third part of cutter teeth I is 15 degrees and the wedge angle of the third part of cutter teeth I (23) is 50 degrees; the profile positions of the second part cutter teeth I (22) and the fourth part cutter teeth I (24) are consistent, fine shaving layers of the veneer facing shaving board are milled, the included angles between the center line of the second part cutter teeth I (22) and the center line I (19) of the milling cutter shaft and between the center line of the fourth part cutter teeth I (24) and the center line I (19) of the milling cutter shaft are 15 degrees (anticlockwise), and the front angles 20 degrees, the rear angles 15 degrees and the wedge angles 55 degrees of the second part cutter teeth I (22) and the fourth part cutter teeth I (24) are all 15 degrees. The veneer shaving board is composed of a veneer and a thick and thin shaving layer, the characteristics of the veneer and the thick and thin shaving layer are different, the milling surface of the veneer or the thick and thin shaving layer is uneven by milling by one milling cutter, and the problems of edge breakage, burrs, pits and the like are generated, so that the cutter teeth with different shapes of the milling cutter are required to mill the veneer and the thick and thin shaving layer respectively, the smooth surface is obtained, the cost of milling the veneer and the shaving board by two milling cutters is saved, the milling times are reduced, and the milling efficiency is improved.
Preferably, the second milling cutter (8) for end pre-cutting milling and the third milling cutter (10) for end finish milling are composed of three parts of cutter teeth, namely a first part cutter tooth II (26), a second part cutter tooth II (27) and a third part cutter tooth II (28); the profile positions of the first part cutter tooth II (26) and the third part cutter tooth II (28) are consistent, a veneer is milled, the included angles between the first part cutter tooth II (26) and the center line II (20) of the milling cutter shaft and between the third part cutter tooth II (28) and the center line II (20) of the milling cutter shaft are 15 degrees (clockwise), and the front angles 20 degrees, the rear angles 13 degrees and the wedge angles 57 degrees of the first part cutter tooth II (26) and the third part cutter tooth II (28) are respectively; the second part cutter teeth II (27) mill the shaving board fine shaving layer and the rough shaving layer, the included angle between the center line of the second part cutter teeth II (27) and the center line of the milling cutter shaft II (20) is 15 degrees (anticlockwise direction), and the front angle 25 degrees, the rear angle 15 degrees and the wedge angle 50 degrees of the second part cutter teeth II (27).
Compared with the prior art, the invention has the beneficial effects that:
by adopting the technical scheme of the invention, the milling of the inlet part of the protecting end head is carried out on double-end milling, the pre-cutting milling of the end part, the finishing milling of the end part and the milling of the inlet part of the finishing end head are carried out on the double-end milling. The cutter shaft configuration can be reduced from a 5-station 10 shaft or a 6-station 12 shaft to a 4-station 6 shaft by the design, so that the milling efficiency is improved; and the problems that when the milling cutter is used for trimming the veneer shaving board, the veneer is broken, burrs and pits appear on the shaving board, the edge sealing position of the plate furniture is not attractive, and the reject ratio of the product is too high are avoided. Firstly milling the end inlet part of the edge of the veneer shaving board by using one milling cutter on the double-end milling, then pre-cutting the veneer and the thick and thin shaving layers on the upper surface and the lower surface of the edge of the veneer shaving board by using two milling cutters respectively, then using two milling cutters, the veneer and the coarse and fine shaving layers on the upper and lower surfaces of the veneer and the shaving board edge are respectively finished, and finally, a milling cutter is used for finishing and milling the inlet part of the shaving board edge end, so that the surface quality of the veneer shaving board end can be improved, and the phenomena of veneer edge breakage, burrs, pits and the like of the veneer shaving board are avoided.
Drawings
FIG. 1 is a block diagram of a veneer chipboard in accordance with the present invention;
FIG. 2 is a milling diagram of a milling cutter milling single plate in the invention;
FIG. 3 is a side view of a milling cutter milling veneer facing chipboard process according to the present invention;
FIG. 4 is a front view of a process for milling veneer chipboard by a milling cutter in the invention;
FIG. 5 is a top view of a milling cutter milling veneer facing chipboard process according to the present invention;
FIG. 6 is a five-part tooth profile position of the first and fourth milling cutters of the present invention;
fig. 7 is a three-part tooth profile position diagram of the second and third milling cutters of the present invention.
The reference numerals of the drawings are marked: veneer shaving board (1), veneer (2), fine shaving layer (3), coarse shaving layer (4), veneer fiber (5), first milling cutter (6), first milling cutter main motion direction (7), second milling cutter (8), second milling cutter main motion direction (9), third milling cutter (10), third milling cutter main motion direction (11), fourth milling cutter (12), fourth milling cutter main motion direction (13), veneer shaving board feed direction (14), first milling cutter cutting edge (15), second milling cutter cutting edge (16), third milling cutter cutting edge (17), fourth milling cutter cutting edge (18), milling cutter arbor center line I (19), milling cutter arbor center line II (20), first part cutter tooth I (21), second part cutter tooth I (22), third part cutter tooth I (23), fourth part cutter tooth I (24), fifth part cutter tooth I (25), first part cutter tooth II (26), second part cutter tooth II (27), third part cutter tooth II (28).
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-2, a veneer chipboard 1 to be milled according to the present invention is shown in fig. 1, wherein the veneer chipboard is an artificial veneer chipboard using veneer 2 as a veneer material and chipboard as a base material.
The thickness of the veneer chipboard is 18mm, wherein the thickness of the two veneer veneers is 2mm, the thickness of the two fine shaving layers is 8mm, and the thickness of the coarse shaving layers is 8mm. The veneer 2 is made of wood with high quality by planing or rotary milling, and then glued on the surface of the shaving board. The veneer is used to make the surface of the shaving board have solid wood patterns, and the plate furniture made of the veneer shaving board is not only not easy to deform and stable in quality, but also attractive in appearance, and the appearance is more close to that of solid wood furniture. The surface layer of the base material shaving board in the veneer facing shaving board is a thin shaving layer 3 made of thinner and smaller special miniature shaving, and the core layer is a thicker and larger coarse shaving layer 4. The thin shavings are placed on the surface of the shaving board, have high static bending strength, good dimensional stability and a flat surface, and the thick shavings are placed on the core layer, so that high strength can be obtained.
As shown in fig. 3 to 5, the present invention provides a technical solution: the utility model provides a veneer shaving board prevents high-efficient milling device of limit that collapses, sets up to 4 station 6 arbor on milling the bi-polar, installs corresponding milling cutter on every arbor, these milling cutter respectively: the first milling cutter 6 for carrying out down milling protection on the inlet part of the end head of the facing chipboard 1, the 2 second milling cutters 8 for carrying out back milling pre-cutting on the end part of the facing chipboard 1, the 2 third milling cutters 10 for carrying out back milling finishing on the end part of the facing chipboard 1 and the fourth milling cutters 12 for carrying out down milling finishing on the inlet part of the end head of the facing chipboard 1.
As shown in fig. 3 to 5, the present invention further provides a technical solution: a veneer shaving board edge breakage prevention efficient milling method comprises the steps of adopting a forward milling protection end head inlet part milling mode on double-end milling, end pre-cutting and milling, end finishing and milling, and forward milling and finishing end head inlet part milling mode; the method can reduce the cutter shaft configuration from a 5-station 10 shaft or a 6-station 12 shaft to a 4-station 6 shaft, so that the milling efficiency is improved; and the problems that when the milling cutter is used for trimming the veneer shaving board, the veneer is broken, burrs and pits appear on the shaving board, the edge sealing position of the plate furniture is not attractive, and the reject ratio of the product is too high are avoided. Configuring a cutter shaft of the double-end milling machine into a 4-station 6 cutter shaft; firstly milling the inlet part of the edge end of the veneer shaving board by adopting a first milling cutter 6 on the double-end milling, then pre-cutting veneers and core layer shaving boards on the upper surface and the lower surface of the edge of the veneer shaving board respectively by adopting two second milling cutters 8, and then, two third milling cutters 10 are adopted to finish the veneers on the upper and lower surfaces of the edge of the veneer and the core shaving board respectively, and finally, a fourth milling cutter 12 is adopted to finish and mill the inlet part of the end head of the edge of the veneer. Therefore, the surface quality of the end part of the veneer facing chipboard can be improved, and the phenomena of veneer edge breakage, burrs, pits and the like of the chipboard are avoided.
As shown in fig. 2-5, the first milling cutter 6 at the inlet part of the forward milling protection end mills the whole end part of the veneer shaving board, and the pneumatic control jumping cutter shaft is adopted, the number of teeth of the first milling cutter 6 is 6, and the rotating speed of the cutter shaft is 3000r/min. Milling the whole end part of the veneer facing chipboard according to the veneer facing chipboard feeding direction 14 and the first milling cutter main motion direction 7 in a milling mode of down milling, wherein the milling depth is 2.5mm; the cutting edge 15 of the first milling cutter and the main movement direction 7 of the first milling cutter are perpendicular to the extending direction of the single-plate fibers 5, and the cutting mode is end-to-end cutting; the design can avoid the phenomenon that the first milling cutter 6 cuts into the end from the end to cause end tearing when the end is precut and milled, the precut depth of the end is 2mm, the depth of the inlet part of the end is 2.5mm, and the inlet depth of the end is larger than the precut depth of the end, so that the single-plate fiber 5 is prevented from tearing to collapse. Because the milling depth is large, the rotating speed of the cutter shaft is 3000r/min, the number of teeth is 6, and the overlarge feeding amount of each tooth is avoided due to the lower rotating speed of the cutter shaft, so that each cutter tooth exceeds the rated power, and the cutter teeth are broken and damaged.
As shown in fig. 2 to 5, two second milling cutters 8 are adopted for end pre-cutting milling, and the two second milling cutters 8 are used for staggered milling to pre-cut the veneer and the thick and thin shaving layers on the upper surface and the lower surface of the edge of the veneer; each second milling cutter has a milling depth of about 10mm from the veneer layer to the rough shaving layer, and a milling length (i.e., along the fiber direction from the end) of 2mm; the number of teeth of the second milling cutter 8 is 6, and the rotating speed of the cutter shaft is 3000r/min. Milling according to the veneer facing chipboard feeding direction 14 and the main motion direction 9 of the second milling cutter in a reverse milling mode; the surface of the veneer facing chipboard adopts veneer facing, the cutting edge 16 of the second milling cutter is parallel to the extending direction of the veneer fibers 5, the extending direction of the veneer fibers 5 is perpendicular to the main moving direction 9 of the milling cutter, and the cutting mode is transverse cutting. The design is that the milling depth is large, so that the rotating speed of the cutter shaft is 3000r/min, the number of teeth is 6, and the overlarge feeding amount of each tooth is avoided due to the lower rotating speed of the cutter shaft, so that each cutter tooth exceeds the rated power, and the cutter teeth are broken and damaged. Because the veneer chipboard is of a symmetrical structure, the veneer, the fine shaving layer and the coarse shaving layer are respectively arranged from the surface to the inside. When a milling cutter is used for milling the veneer shaving board, the milling workload is large, so that the milling cutter is adopted to mill the veneer shaving board in a staggered manner in order to avoid too fast cutter abrasion and uneven surface edge breakage caused by too large cutting force, the milling surface quality is ensured, and the milling efficiency is also improved.
As shown in fig. 2 to 5, two third milling cutters 10 are adopted for end finishing milling, and the two third milling cutters are used for staggered milling to respectively finish the veneer and the thick and thin shaving layers on the upper surface and the lower surface of the edge of the veneer; each third milling cutter is used for milling from the single plate to the rough shaving layer, the milling depth is about 10mm, and the milling depth is 1mm; the number of teeth of the third milling cutter 10 is 6, and the rotating speed of the cutter shaft is 6000r/min. Milling according to the veneer facing chipboard feeding direction 14 and the third milling cutter main movement direction 11 in a reverse milling mode; the cutting edge 17 of the third milling cutter and the main movement direction 11 of the third milling cutter are perpendicular to the extending direction of the single-plate fiber 5, and the cutting mode is end-to-end cutting. The design is that the milling depth is lower, the rotating speed of the cutter shaft is accelerated, and the feeding amount of each tooth is shortened, so that the higher milling surface quality is obtained. Because the veneer has a symmetrical structure, the veneer, the fine shavings and the coarse shavings are respectively arranged from the surface to the inside. Because the milling length is longer, the cutter is prevented from being worn too fast and the surface is not smooth and broken, which are caused by too large cutting force, so that two integral milling cutters are adopted to stagger and mill the veneer facing chipboard. By doing so, the milling surface quality is guaranteed, and the milling efficiency is improved.
As shown in fig. 2-5, a fourth milling cutter 12 is used for milling the inlet part of the finish end head by adopting pneumatic control, the number of teeth of the fourth milling cutter 12 is 6, and the rotating speed of the cutter shaft is 6000r/min. Milling the whole end part of the veneer facing chipboard according to the feeding direction 14 of the veneer facing chipboard and the main movement direction 13 of the fourth milling cutter in a milling mode of down milling, wherein the milling depth is 0.5mm, and finishing and milling the inlet part of the end; the fourth milling cutter cutting edge 18 and the milling cutter main movement direction 13 are perpendicular to the extending direction of the single-plate fiber 5, and the cutting mode is end-to-end cutting. The design is that the milling depth is 2.5mm when the inlet part of the protecting end is milled, and the milling allowance of 0.5mm is reserved, so that the milling surface of the end part of the veneer facing chipboard is flat after the inlet part of the protecting end is finished by the direct milling. Because the milling depth is lower, the rotating speed of the cutter shaft is increased, and the feeding quantity of each tooth is shortened, so that higher milling surface quality is obtained.
As shown in fig. 6, the first milling cutter 6 for milling the inlet part of the protecting end and the fourth milling cutter 12 for milling the inlet part of the finishing end are composed of five cutter teeth, and the five cutter teeth respectively mill corresponding to different parts of the veneer facing chipboard; the five-part cutter teeth are a first part cutter tooth I21, a second part cutter tooth I22, a third part cutter tooth I23, a fourth part cutter tooth I24 and a fifth part cutter tooth I25 respectively; the profile positions of the first part cutter tooth I21 and the fifth part cutter tooth I25 are consistent, a single-board part of the single-board veneer shaving board is milled, the included angle between the central line of the first part cutter tooth I21 and the central line I19 of the milling cutter shaft and the included angle between the central line of the fifth part cutter tooth I25 and the central line I19 of the milling cutter shaft are 15 degrees (clockwise), and the front angle 20 degrees, the rear angle 13 degrees and the wedge angle 57 degrees of the first part cutter tooth I21 and the fifth part cutter tooth I25 are all the same; milling the rough shaving layer of the veneer shaving board by the third part cutter teeth I23, wherein an included angle between the central line of the third part cutter teeth I23 and the central line I19 of the milling cutter shaft is 15 degrees (clockwise), and the front angle of the third part cutter teeth I23 is 25 degrees, the rear angle is 15 degrees and the wedge angle is 50 degrees; the profile positions of the second part cutter teeth I22 and the fourth part cutter teeth I24 are consistent, fine wood shaving layers of the veneer shaving board are milled, the included angles between the center line of the second part cutter teeth I22 and the center line I19 of the milling cutter shaft and between the center line of the fourth part cutter teeth I24 and the center line I19 of the milling cutter shaft are 15 degrees (anticlockwise), and the front angles 20 degrees, the back angles 15 degrees and the wedge angles 55 degrees of the second part cutter teeth I22 and the fourth part cutter teeth I24 are all 15 degrees.
The veneer shaving board is composed of a veneer and a thick and thin shaving layer, the characteristics of the veneer and the thick and thin shaving layer are different, the milling surface of the veneer or the thick and thin shaving layer is uneven by milling by one milling cutter, and the problems of edge breakage, burrs, pits and the like are generated, so that the cutter teeth with different shapes of the milling cutter are required to mill the veneer and the thick and thin shaving layer respectively, the smooth surface is obtained, the cost of milling the veneer and the shaving board by two milling cutters is saved, the milling times are reduced, and the milling efficiency is improved.
As shown in fig. 7, the second milling cutter 8 for end pre-cutting milling and the third milling cutter 10 for end finishing milling are each composed of three-part cutter teeth, namely, a first part cutter tooth ii 26, a second part cutter tooth ii 27 and a third part cutter tooth ii 28; the profile positions of the first part cutter tooth II 26 and the third part cutter tooth II 28 are consistent, a veneer is milled, the included angles between the first part cutter tooth II 26 and the center line II 20 of the milling cutter shaft and between the third part cutter tooth II 28 and the center line II 20 of the milling cutter shaft are 15 degrees (clockwise), and the front angle 20 degrees, the rear angle 13 degrees and the wedge angle 57 degrees of the first part cutter tooth II 26 and the third part cutter tooth II 28 are respectively; the second part cutter teeth II 27 mill the shaving board fine shaving layer and the rough shaving layer, the included angle between the center line of the second part cutter teeth II 27 and the center line II 20 of the milling cutter shaft is 15 degrees (anticlockwise direction), and the front angle 25 degrees, the rear angle 15 degrees and the wedge angle 50 degrees of the second part cutter teeth II 27.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A high-efficiency milling method for preventing edge breakage of a veneer chipboard is characterized in that a cutter shaft with double end milling is configured into a 4-station 6-cutter shaft; firstly milling the inlet part of the edge end head of the veneer shaving board by adopting a first milling cutter (6) on the double-end milling, then pre-cutting veneers and core shaving boards on the upper surface and the lower surface of the edge of the veneer shaving board respectively by adopting two second milling cutters (8), then, two third milling cutters (10) are adopted to finish the veneers on the upper and lower surfaces of the edge of the veneer and the core layer chipboard respectively, and finally, a fourth milling cutter (12) is adopted to finish and mill the inlet part of the end head of the edge of the veneer;
the first milling cutter (6) for milling the inlet part of the forward milling protection end head and the fourth milling cutter (12) for milling the inlet part of the forward milling finish end head are composed of five parts of cutter teeth, and the five parts of cutter teeth respectively mill corresponding to different parts of the veneer facing chipboard;
the five-part cutter teeth are respectively a first part cutter tooth I (21), a second part cutter tooth I (22), a third part cutter tooth I (23), a fourth part cutter tooth I (24) and a fifth part cutter tooth I (25);
the profile positions of the first part cutter tooth I (21) and the fifth part cutter tooth I (25) are consistent, a single plate part of the single plate veneer shaving board is milled, the included angle between the central line of the first part cutter tooth I (21) and the central line I (19) of the milling cutter shaft, and the included angle between the central line of the fifth part cutter tooth I (25) and the central line I (19) of the milling cutter shaft are 15 degrees, and the front angles 20 degrees, the rear angles 13 degrees and the wedge angles 57 degrees of the first part cutter tooth I (21) and the fifth part cutter tooth I (25) are all the same;
milling a rough shaving layer of the veneer facing chipboard by the third part cutter teeth I (23), wherein an included angle between the central line of the third part cutter teeth I (23) and the central line of the milling cutter shaft I (19) is 15 degrees, and the front angle of the third part cutter teeth I (23) is 25 degrees, the rear angle is 15 degrees and the wedge angle is 50 degrees;
the profile positions of the second part cutter teeth I (22) and the fourth part cutter teeth I (24) are consistent, fine shaving layers of the veneer facing shaving board are milled, the included angles between the center line of the second part cutter teeth I (22) and the center line I (19) of the milling cutter shaft and between the center line of the fourth part cutter teeth I (24) and the center line I (19) of the milling cutter shaft are 15 degrees, and the front angles 20 degrees, the rear angles 15 degrees and the wedge angles 55 degrees of the second part cutter teeth I (22) and the fourth part cutter teeth I (24) are all the same.
2. The efficient milling method for preventing edge collapse of the veneer chipboard according to claim 1, wherein the first milling cutter (6) at the inlet part of the forward milling protection end is used for milling the whole end part of the veneer chipboard, the number of teeth of the first milling cutter (6) is 6, and the rotating speed of a cutter shaft is 3000r/min; milling the whole end part of the veneer chipboard according to the feeding direction (14) of the veneer chipboard and the main movement direction (7) of the first milling cutter in a down milling mode, wherein the milling depth is 2.5mm; the cutting edge (15) of the first milling cutter and the main movement direction (7) of the first milling cutter are perpendicular to the extending direction of the single-plate fiber (5), and the cutting mode is end-to-end cutting.
3. The efficient milling method for preventing edge collapse of veneer chipboard according to claim 1, wherein the end pre-cutting milling adopts two second milling cutters (8), the two second milling cutters (8) are used for staggered milling, and pre-cutting is carried out on veneers and thick and thin shaving layers on the upper and lower surfaces of the edge of veneer chipboard; the milling depth of each second milling cutter is from the veneer layer to the rough shaving layer, and the milling length is 2mm; the number of teeth of the second milling cutter (8) is 6, and the rotating speed of the cutter shaft is 3000r/min; according to the veneer facing chipboard feeding direction (14) and the main movement direction (9) of the second milling cutter, the milling mode is reverse milling; the surface of the veneer facing chipboard adopts veneer facing, the cutting edge (16) of the second milling cutter is parallel to the extending direction of the veneer fibers (5), the extending direction of the veneer fibers (5) is perpendicular to the main moving direction (9) of the second milling cutter, and the cutting mode is transverse cutting.
4. The efficient milling method for preventing edge collapse of the veneer chipboard according to claim 1, wherein the end finishing milling adopts two third milling cutters (10) which are used for staggered milling, and respectively finishing veneers and thick and thin shaving layers on the upper surface and the lower surface of the edge of the veneer chipboard; each third milling cutter is used for milling from the single plate to the rough shaving layer, and the milling depth is 1mm; the number of teeth of the third milling cutter (10) is 6, and the rotating speed of the cutter shaft is 6000r/min; according to the veneer facing chipboard feeding direction (14) and the third milling cutter main movement direction (11), the milling mode is reverse milling; the cutting edge (17) of the third milling cutter and the main movement direction (11) of the third milling cutter are perpendicular to the extending direction of the single-plate fiber (5), and the cutting mode is end-to-end cutting.
5. The efficient milling method for preventing edge breakage of the veneer chipboard according to claim 1, wherein a fourth milling cutter (12) is used for milling the inlet part of the finish end head of the finish end of the finish chipboard, the number of teeth of the fourth milling cutter (12) is 6, and the rotating speed of a cutter shaft is 6000r/min; milling the whole end part of the veneer shaving board according to the feeding direction (14) of the veneer shaving board and the main movement direction (13) of the fourth milling cutter in a down milling mode, wherein the milling depth is 0.5mm, and finishing and milling the inlet part of the end; the cutting edge (18) of the fourth milling cutter and the main movement direction (13) of the fourth milling cutter are perpendicular to the extending direction of the single-plate fiber (5), and the cutting mode is end-to-end cutting.
6. The efficient milling method for the edge collapse prevention of the veneer chipboard according to claim 2, wherein a first milling cutter (6) for milling the inlet part of the forward milling protection end head adopts a pneumatic control jumping cutter shaft, and after the end head part is milled, the cutter shaft automatically jumps to complete milling work.
7. The efficient milling method for the edge breakage prevention of the veneer chipboard according to claim 5, wherein a fourth milling cutter (12) for milling the inlet part of the finish end head is pneumatically controlled to jump, and after the end head part is milled, the milling work is completed by jumping automatically.
8. The efficient milling method for preventing edge breakage of the veneer chipboard according to claim 1, wherein the second milling cutter (8) for end pre-cutting milling and the third milling cutter (10) for end finish milling are composed of three parts of cutter teeth, namely a first part cutter tooth II (26), a second part cutter tooth II (27) and a third part cutter tooth II (28);
the profile positions of the first part of cutter teeth II (26) and the third part of cutter teeth II (28) are consistent, and milling is carried out on the veneer of the veneer;
the included angles between the first part cutter tooth II (26) and the center line II (20) of the milling cutter shaft and between the third part cutter tooth II (28) and the center line II (20) of the milling cutter shaft are 15 degrees, and the front angle 20 degrees, the rear angle 13 degrees and the wedge angle 57 degrees of the first part cutter tooth II (26) and the third part cutter tooth II (28) are respectively formed;
the second part cutter teeth II (27) mill the shaving board fine shaving layer and the rough shaving layer, the included angle between the center line of the second part cutter teeth II (27) and the center line of the milling cutter shaft II (20) is 15 degrees, and the front angle, the rear angle and the wedge angle of the second part cutter teeth II (27) are 25 degrees, 15 degrees and 50 degrees.
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| CN202210090453.2A CN114290446B (en) | 2019-03-05 | 2019-03-05 | Efficient milling method for anti-edge-collapse of veneer shaving board |
| CN201910162790.6A CN109773895B (en) | 2019-03-05 | 2019-03-05 | Efficient milling device for preventing edge collapse of facing chipboard and processing method thereof |
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| CN201910162790.6A CN109773895B (en) | 2019-03-05 | 2019-03-05 | Efficient milling device for preventing edge collapse of facing chipboard and processing method thereof |
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| GB191127927A (en) * | 1911-12-12 | 1912-06-06 | Harold Williamson Lake | Improved Method of and Machine for Milling Flat Metal Bars. |
| DE4401044B4 (en) * | 1994-01-15 | 2006-10-05 | Otto Martin Maschinenbau Gmbh & Co | planer |
| CN2544923Y (en) * | 2002-06-24 | 2003-04-16 | 蓝帜（南京）工具有限公司 | Comb tear-proof cutter tooth structure |
| CN201361910Y (en) * | 2008-11-28 | 2009-12-16 | 诸义锋 | Novel three side-planing-and-milling woodworking machine tool for board processing |
| CN202106430U (en) * | 2011-06-27 | 2012-01-11 | 济南天辰铝机制造有限公司 | Timber milling processing center |
| CN103128829A (en) * | 2011-12-03 | 2013-06-05 | 苏州豪特景精密机械有限公司 | Grooving method for wood |
| CN203282180U (en) * | 2013-06-21 | 2013-11-13 | 保定天威保变电气股份有限公司 | Machining equipment for a plurality of T-shaped supporting strips |
| CN107042329A (en) * | 2017-02-23 | 2017-08-15 | 中钢集团邢台机械轧辊有限公司 | For the milling method of chill product |
| CN108393521B (en) * | 2018-02-01 | 2019-04-23 | 大连理工大学 | A kind of preferred method of carbon fibre composite along upmilling processing method |
| CN108908529A (en) * | 2018-07-09 | 2018-11-30 | 佛山市神雕机电设备有限公司 | A kind of method for milling of curved part |
| CN210616791U (en) * | 2019-03-05 | 2020-05-26 | 南京林业大学 | Veneer shaving board prevents that limit high efficiency mills processingequipment that collapses |
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| CN114290446B (en) | 2022-07-08 |
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