Layered multi-channel on-demand powder distribution method

Abstract

The invention discloses a layered multi-channel on-demand powder distribution method, which comprises the following steps of: converting a powder distribution pattern into a BCMYK image, dividing the BCMYK image into five layers of BCMYK, and inputting the BCMYK image into powder distribution equipment; a plurality of powder distribution units are arranged, each powder distribution unit comprises five color channels BCMYK, and the five color channels are in one-to-one correspondence with the five layers. By means of the multiple color channels, powder of one color is split, multiple times of powder distribution is conducted, powder of different colors is mixed through multiple times of combined powder distribution, so that the needed color is obtained, the color obtained through mixing is uniform, and compared with the prior art that each color channel completes powder distribution at a time, color faults are obvious, and the color distribution efficiency is improved. Obvious faults are avoided, and the finished product effect is good; the powder distribution thickness can be controlled by controlling the powder distribution amount of each channel, and due to the fact that the same color is formed through multiple times of splitting and combining, even if the powder distribution thickness is 10 mm or above, the color of a finished product obtained after powder distribution cannot be layered, and the powder distribution effect can be effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of tile production, and in particular to a layered multi-channel on-demand powder distribution method. Background Art

[0002] Ceramic tiles can be used to decorate and protect the walls and floors of buildings. The traditional industrial powder spreading machine used for powdering ceramic tile textures mostly uses liquid pigments as the powder spreading medium. After the pigments of different colors are spread on the substrate, the different colors of pigments will mix with each other through the water-based dissolution principle of the liquid pigment, thus forming the required color. The thickness of the pigment after the liquid pigment is used for powdering is thin, mostly within 1mm, the texture depth is not enough, and the texture effect is poor. When some ceramic texture powders are used for large bricks with a thickness of more than 10mm, powdering is usually used for coloring. The thickness of the powder is increased to increase the texture depth. The existing single color channel of the powder is completed at one time. When multiple color channels are required, only simple superposition is used, that is, the powder of one channel color is powdered before the color of another channel. This simple superposition method will result in obvious stratification of different color powders, poor precision, and poor finished product effect. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is that the ceramic tile powder spreading method in the prior art will lead to obvious color stratification and poor powder spreading effect when spreading multi-color powder on solid brick blanks with a large thickness, thereby providing a layered multi-channel on-demand powder spreading method.

[0004] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0005] A layered multi-channel on-demand powder distribution method comprises the following steps:

[0006] Enter the pattern that needs to be powdered;

[0007] Converting the pattern into a BCMYK image;

[0008] The BCMYK image is divided into BCMYK5 layers;

[0009] Inputting the BCMYK image into a powder dispensing device;

[0010] The powder spreading equipment includes multiple powder spreading modules, each of which is provided with 5 color channels B, C, M, Y, and K arranged in sequence, and the 5 color channels correspond to the 5 image layers one by one; each powder spreading module includes 5 powder spreading units B, C, M, Y, and K, and the B, C, M, Y, and K powder spreading units of the nth powder spreading module are respectively set to Bn, Cn, Mn, Yn, and Kn; when spreading powder for one pixel, first use the B channel to spread the powder material at the required powder spreading position according to demand and quantity, and then stack and arrange the powder materials of the C, M, Y, and K channels in sequence, so as to spread the powder to the required thickness; the remaining powder spreading modules also spread powder separately in this stacked powder spreading manner;

[0011] When the subsequent powder distributing modules are distributing powder, the powder distributing is also completed in the horizontal length in the manner of stacking the powder.

[0012] Furthermore, the powder colors arranged in the channels of different colors correspond one to one with the colors of the patterns that require powder spreading, the amount of powder spread in the channels is proportional to the number of pixels of the corresponding color, and the size of the arranged powder points is proportional to the size of the pixel points.

[0013] Furthermore, the color of the powder arranged in the B channel is the basic background color.

[0014] Furthermore, the total amount of powder distributed on each powder distribution module is consistent, and the sum of the powder distribution amounts of the C, M, Y, and K color channels in the same group is complementary to the powder distribution amount of the B color channel.

[0015] Furthermore, the powder spreading unit includes 6 powder spreading modules, so that each color is powdered in 6 times, that is, the 5 channels on the 6 powder spreading modules are B1C1M1Y1K1, B2C2M2Y2K2, B3C3M3Y3K3, B4C4M4Y4K4, B5C5M5Y5K5, and B6C6M6Y6K6 respectively during 6 powder spreading times.

[0016] Furthermore, when distributing powder in the horizontal length of the image, let the powder pixel be P, and the order of arrangement of the powder pixels is P1, P2, P3...Pn. When distributing powder B1C1M1Y1K1, B2C2M2Y2K2, B3C3M3Y3K3, B4C4M4Y4K4, B5C5M5Y5K5, and B6C6M6Y6K6 in sequence, the powder is distributed in the staggered order of P(1+n*6)→P(4+n*6)→P(5+n*6)→P(3+n*6)→P(6+n*6)→P(2+n*6).

[0017] Furthermore, multiple groups of powder distribution units are set up. When distributing powder, the same channels of the same powder distribution modules on the multiple groups of powder distribution units distribute powder at the same time, that is, when distributing powder on channel B, the B1 channels of the multiple groups of powder distribution units distribute powder at the same time, and multiple groups P(1+n*6) distribute powder at the same time, and multiple groups P(4+n*6) distribute powder at the same time; the multiple groups of powder distribution units all repeat the powder distribution in the same staggered arrangement order, so as to complete the powder distribution on the horizontal lateral length of multiple powder distribution units.

[0018] Furthermore, when distributing the image in the longitudinal direction, let the distributing pixel be L, and the multiple pixels L are sequentially arranged from front to back as L1, L2, L3...Ln. When distributing the image, the distributing is performed in the order of L1, L2, L3...Ln.

[0019] Furthermore, when distributing powder, the powder distributing nozzle uses the amplitude of the waveform to control the powder distribution or uses the duty cycle pulse method to control the powder distribution.

[0020] Furthermore, after the powder is spread, the spread powder is compacted by a powder pressing structure.

[0021] The technical solution of the present invention has the following advantages:

[0022] 1. The layered multi-channel on-demand powder spreading method provided by the present invention, by setting up multiple color powder spreading units, powder of one color is split into multiple powder spreadings, and powders of different colors are mixed by repeated powder spreading combinations to obtain the required color, and the mixed color is uniform. Compared with the prior art in which each color channel is completed with one powder spreading and causes obvious color faults, the present application will not have obvious faults and the finished product effect is good; and by controlling the powder spreading amount of each channel, the powder spreading thickness can be controlled. Since the same color is formed by multiple splitting and combination, even if the powder spreading thickness is more than 10 mm, the color of the arranged finished product will not have the problem of color stratification, and the powder spreading effect can be effectively guaranteed.

[0023] 2. The layered multi-channel on-demand powder spreading method provided by the present invention has the powder colors of the channels with different colors corresponding to the colors of the patterns that need to be spread, the amount of powder spread in the channels is proportional to the number of pixels of the corresponding colors, and the size of the powder points laid out is proportional to the color depth of the pixels. This arrangement can ensure the powder spreading accuracy, and make the finished product smooth as a whole after the powder spreading is completed, while ensuring the same degree of consistency between the final powder spreading pattern and the pattern that needs to be spread.

[0024] 3. In the layered multi-channel on-demand powder distribution method provided by the present invention, the total amount of powder distributed on each channel is consistent, and the sum of the powder distribution amounts of the C, M, Y, and K color channels in the same group is complementary to the powder distribution amount of the B color channel. Such an arrangement can ensure uniform distribution of powder materials for different powder distribution units in the same module without staggered arrangement of powder distribution, so as to ensure that the finished product after powder distribution is smooth as a whole, and will not cause poor effect of the finished product due to uneven distribution of powder.

[0025] 4. The layered multi-channel on-demand powder spreading method provided by the present invention sets up multiple powder spreading modules, and allows the same color channels in the powder spreading modules to spread powder simultaneously, which can increase the powder spreading speed, allow the powder to quickly cover the required powder spreading range, and effectively improve the powder spreading efficiency.

[0026] 5. The layered multi-channel on-demand powder spreading method provided by the present invention sets multiple groups of powder spreading modules. When spreading powder, the powder spreading units of the same channel on the multiple groups of powder spreading modules spread powder at the same time, that is, when spreading powder on channel B, the powder spreading units B of the multiple groups of powder spreading modules spread powder at the same time. Such a setting can increase the amount of powder spreading per unit time, and at the same time can ensure the powder spreading accuracy. The powder spreading between different powder spreading units will not affect each other when spreading powder at the same time, and effectively ensure the powder spreading effect.

[0027] 6. In the layered multi-channel on-demand powder distribution method provided by the present invention, when distributing powder, the powder distribution nozzle uses the amplitude of the waveform to control the powder distribution or uses the duty cycle pulse method to control the powder distribution. In this way, the arrangement of each color channel can be controlled to obtain the required powder thickness, and the powder thickness can be controlled at the same time, so that powders of different colors are cross-mixed to achieve a uniform color mixing effect, and there will be no obvious stratification of powders of different colors, and the powder distribution product effect is good.

[0028] 7. The layered multi-channel on-demand powder spreading method provided by the present invention, after the powder spreading is completed, the powder material is compacted by the powder pressing structure. With such a configuration, the powder material does not need to go through a falling process during the powder spreading, thus avoiding pattern deformation caused by the falling process, and improving the powder spreading accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A powder distribution flow chart of the layered multi-channel on-demand powder distribution method provided in an embodiment of the present invention;

[0031] Figure 2A channel arrangement sequence diagram provided by an embodiment of the present invention;

[0032] Figure 3 A schematic diagram of the corresponding relationship between channels and pixels of an image provided by an embodiment of the present invention;

[0033] Figure 4 A schematic diagram of dividing multiple powder distribution unit image layers provided by an embodiment of the present invention;

[0034] Figure 5 A schematic diagram of dividing the image layers of a single powder dispensing unit provided in an embodiment of the present invention;

[0035] Figure 6 A schematic diagram of the powder distribution sequence of multiple powder distribution units provided in an embodiment of the present invention;

[0036] Figure 7 A schematic diagram of the powder distribution sequence of a single powder distribution unit provided in an embodiment of the present invention;

[0037] Figure 8 A schematic diagram of the powder distribution effect of the layered multi-channel on-demand powder distribution method of the present invention;

[0038] Fig. 9 It is a schematic diagram of the powder distribution effect of the powder distribution method in the prior art. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] like Figure 1-8 A layered multi-channel on-demand powder distribution method is shown, comprising the following steps:

[0044] Enter the pattern that needs to be powdered;

[0045] Converting the pattern into a BCMYK image;

[0046] The BCMYK image is divided into BCMYK5 layers;

[0047] Inputting the BCMYK image into a powder dispensing device;

[0048] The powder spreading equipment includes multiple powder spreading modules, each of which is provided with 5 color channels B, C, M, Y, and K arranged in sequence, and the 5 color channels correspond to the 5 image layers one by one; each powder spreading module includes 5 powder spreading units B, C, M, Y, and K, and the B, C, M, Y, and K powder spreading units of the nth powder spreading module are respectively set to Bn, Cn, Mn, Yn, and Kn; when spreading powder for one pixel, first use the B channel to spread the powder material at the required powder spreading position according to demand and quantity, and then stack and arrange the powder materials of the C, M, Y, and K channels in sequence, so as to spread the powder to the required thickness; the remaining powder spreading modules also spread powder separately in this stacked powder spreading manner;

[0049] When the subsequent powder distributing modules are distributing powder, the powder distributing is also completed in the horizontal length in the manner of stacking the powder.

[0050] This layered multi-channel on-demand powder spreading method, by setting up multiple color powder spreading units, splits a color of powder into multiple powder spreadings, and achieves mixing of powders of different colors by repeated powder spreading combinations, thereby obtaining the required color, and the mixed color is uniform, compared with the prior art in which each color channel is completed with one powder spreading, resulting in obvious color faults (such as Fig. 9As shown), this application will not have obvious faults and the finished product effect is good; and by controlling the amount of powder in each channel, the thickness of the powder can be controlled. Since the same color is split and combined many times, even if the thickness of the powder is more than 10mm, the color of the finished product produced by the powder will not have the problem of color stratification, which can effectively ensure the powder effect.

[0051] In this embodiment, the color of the powders arranged in the channels of different colors corresponds to the color of the pattern that needs to be spread, the amount of powders spread in the channels is proportional to the number of pixels of the corresponding color, and the size of the powder points arranged is proportional to the size of the pixels. This arrangement can ensure the accuracy of powder spreading, and make the finished product smooth as a whole after the powder spreading is completed, while ensuring the same degree between the final pattern spread and the pattern that needs to be spread. Specifically, the color of the powders arranged in channel B is the basic background color.

[0052] In this embodiment, when distributing powder in the horizontal length, multiple powder distribution modules are arranged in a staggered order to distribute powder. This arrangement can avoid the powder materials being arranged and stacked in sequence at adjacent positions during the distribution, which may cause local stacking to be too high and then cause the powder materials to collapse and move, thereby improving the powder distribution accuracy. In an alternative embodiment, multiple powder distribution modules can also be arranged in sequence to distribute powder.

[0053] In this embodiment, the total amount of powder distributed on each module is consistent, that is, the total amount of powder distributed on B1C1M1Y1K1 is the same as the total amount of powder distributed on B2C2M2Y2K2. Specifically, the sum of the amount of powder distributed on the C, M, Y, and K color channels of the same group is complementary to the amount of powder distributed on the B color channel, that is, when the total amount of powder distributed on C1M1Y1K1 is different from the total amount of powder distributed on C2M2Y2K2 and the amount of powder distributed on B1 is different from the amount of powder distributed on B2, the amount of powder distributed on B1 is complementary to the total amount of powder distributed on C1M1Y1K1, the amount of powder distributed on B2 is complementary to the total amount of powder distributed on C2M2Y2K2, and the total amount of powder distributed on B1 and C1M1Y1K1 is the same as the total amount of powder distributed on B2 and C2M2Y2K2; in this way, different powder distribution units in the same module can ensure uniform distribution of powder without staggered arrangement of powder distribution, so as to ensure that the finished product is flat as a whole after the powder distribution is completed, and the finished product will not be poor in effect due to uneven distribution of powder.

[0054] In this embodiment, the powder spreading unit specifically includes 6 powder spreading modules, so that each color is spread powder 6 times, that is, the 5 channels on the 6 powder spreading modules are B1C1M1Y1K1, B2C2M2Y2K2, B3C3M3Y3K3, B4C4M4Y4K4, B5C5M5Y5K5, and B6C6M6Y6K6 respectively during the 6 times of powder spreading.

[0055] Specifically, when distributing powder along the horizontal length of the image, let the powder pixel be P, and the order of arrangement of the powder pixels is P1, P2, P3...Pn. When distributing powder B1C1M1Y1K1, B2C2M2Y2K2, B3C3M3Y3K3, B4C4M4Y4K4, B5C5M5Y5K5, and B6C6M6Y6K6 in sequence, they are arranged in the staggered order of P(1+n*6)→P(4+n*6)→P(5+n*6)→P(3+n*6)→P(6+n*6)→P(2+n*6), such as P1→P4→P5→P3→P6→P2, and P7→P10→P11→P9→P12→P8. Such a configuration can avoid the powder materials from being stacked in adjacent positions during the distribution of powder, which may cause the local stacking to be too high and then cause the powder materials to collapse and move, and can improve the distribution accuracy of powder. In an alternative embodiment, the number of powder distribution modules can be increased or decreased as required, and the order of powder distribution can also be adjusted as required. In an alternative embodiment, the powder can also be arranged in order, that is, the powder is not distributed in a staggered arrangement.

[0056] In this embodiment, multiple groups of powder distribution modules are set. When distributing powder, the same units of the same powder distribution module distribute powder at the same time, that is, when distributing powder on the B channel, the B1 units of the first module distribute powder at the same time, that is, the pixels of P1→P7→P13→P19→P25→P31→P37... are distributed at the same time; the B2 units of the second module distribute powder at the same time, that is, the pixels of P4→P10→P16→P22→P28→P34→P40... are distributed at the same time; the B3 units of the third module distribute powder at the same time, that is, the pixels of P5→P11→P17→P23→P29→P35→P41... are distributed at the same time. Powder distribution; the B4 unit of the fourth module distributes powder at the same time, that is, the pixels of P3→P9→P15→P21→P27→P33→P39... distribute powder at the same time; the B5 unit of the fifth module distributes powder at the same time, that is, the pixels of P6→P12→P18→P24→P30→P36→P42... distribute powder at the same time; the B6 unit of the sixth module distributes powder at the same time, that is, the pixels of P2→P8→P14→P20→P26→P32→P38... distribute powder at the same time; the other color channels are repeated in the same staggered distribution order to complete the distribution of powder on the horizontal length. Such a setting can increase the amount of powder distribution per unit time, so that the powder material can quickly cover the required distribution range, effectively improving the distribution efficiency; at the same time, it can ensure the distribution accuracy, and the distribution of powder between different distribution units will not affect each other, effectively ensuring the distribution effect.

[0057] Specifically, the same units of the same powder distribution module are powdered at the same time, that is, when the B channel is powdered, the B1 units of the first module are powdered at the same time, that is, the pixels P1→P7→P13→P19→P25→P31→P37...are powdered at the same time; the B2 units of the second module are powdered at the same time, that is, the pixels P4→P10→P16→P22→P28→P34→P40...are powdered at the same time; the B3 units of the third module are powdered at the same time, that is, the pixels P5→P11→P17→P23→P29→P35→P The pixel points of P41... are distributed powder at the same time; the B4 unit of the fourth module is distributed powder at the same time, that is, the pixel points of P3→P9→P15→P21→P27→P33→P39... are distributed powder at the same time; the B5 unit of the fifth module is distributed powder at the same time, that is, the pixel points of P6→P12→P18→P24→P30→P36→P42... are distributed powder at the same time; the B6 unit of the sixth module is distributed powder at the same time, that is, the pixel points of P2→P8→P14→P20→P26→P32→P38... are distributed powder at the same time.

[0058] In this embodiment, when distributing powder in the vertical length of an image, let the distribution pixel be L, and multiple pixels L are sequentially arranged from front to back as L1, L2, L3...Ln. When distributing powder, the order of L1, L2, L3...Ln is followed.

[0059] In this embodiment, when distributing powder, the powder distributing nozzle uses the amplitude of the waveform to control the powder distributing or uses the duty cycle pulse method to control the powder distributing. In this way, each powder distributing unit can be controlled to distribute powder to obtain the required powder thickness, and the powder thickness can be controlled at the same time, so that powders of different colors are cross-mixed to achieve a uniform color mixing effect, and there will be no obvious stratification of powders of different colors, and the powder distributing finished product has a good effect.

[0060] In this embodiment, after the powder is spread, the powder is compacted by the powder pressing structure. With this arrangement, the powder does not need to fall during the powder spreading process, thus avoiding pattern deformation during the falling process and improving the powder spreading accuracy.

[0061] To sum up, this layered multi-channel on-demand powder spreading method, by setting up multiple color powder spreading units, splits one color of powder into multiple powder spreadings, and achieves mixing of powders of different colors by repeated powder spreading combinations, thereby obtaining the required color, and the mixed color is uniform. Compared with the prior art in which each color channel is completed with one powder spreading and causes obvious color discontinuities, the present application will not have obvious discontinuities and the finished product effect is good; and by controlling the amount of powder spreading in each channel, the thickness of the powder spreading can be controlled. Since the same color is formed through multiple splitting and combinations, even if the thickness of the powder spreading is above 10 mm, the color of the finished product produced by the powder spreading will not have the problem of color stratification, and the powder spreading effect can be effectively guaranteed.

[0062] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A layered multi-channel on-demand powder distribution method, characterized in that: The following steps are involved: Enter the pattern that needs to be powdered; Converting the pattern into a BCMYK image; The BCMYK image is divided into BCMYK5 layers; Inputting the BCMYK image into a powder dispensing device; The powder spreading equipment includes multiple powder spreading modules, each of which is provided with 5 color channels B, C, M, Y, and K arranged in sequence, and the 5 color channels correspond to the 5 image layers one by one; each powder spreading module includes 5 powder spreading units B, C, M, Y, and K, and the B, C, M, Y, and K powder spreading units of the nth powder spreading module are respectively set to Bn, Cn, Mn, Yn, and Kn; when spreading powder for one pixel, first use the B channel to spread the powder material at the required powder spreading position according to demand and quantity, and then stack and arrange the powder materials of the C, M, Y, and K channels in sequence, so as to spread the powder to the required thickness; the remaining powder spreading modules also spread powder separately in this stacked powder spreading manner; When the subsequent powder distributing modules are distributing powder, the powder distributing is also completed in the horizontal length in the manner of stacking the powder.

2. The layered multi-channel on-demand powder distribution method according to claim 1, characterized in that: The powder colors arranged in the channels of different colors correspond one to one with the colors of the patterns that require powder distribution, the amount of powder distribution in the channels is proportional to the number of pixels of the corresponding colors, and the size of the arranged powder points is proportional to the size of the pixels.

3. The layered multi-channel on-demand powder distribution method according to claim 2, characterized in that: The powder color arranged by the B channel is the basic background color.

4. The layered multi-channel on-demand powder distribution method according to claim 1, characterized in that: The total amount of powder distributed on each powder distribution module is consistent, and the sum of the powder distribution amounts of the C, M, Y, and K color channels in the same group is complementary to the powder distribution amount of the B color channel.

5. The layered multi-channel on-demand powder distribution method according to claim 1, characterized in that: The powder spreading unit comprises 6 powder spreading modules, so that each color is powdered in 6 times, that is, the 5 channels on the 6 powder spreading modules are B1C1M1Y1K1, B2C2M2Y2K2, B3C3M3Y3K3, B4C4M4Y4K4, B5C5M5Y5K5, and B6C6M6Y6K6 respectively during the 6 times of powder spreading.

6. The layered multi-channel on-demand powder distribution method according to claim 5, characterized in that: When distributing powder along the horizontal length of the image, let the powder pixel be P, and the order of the powder pixels is P1, P2, P3...Pn. When distributing powder B1C1M1Y1K1, B2C2M2Y2K2, B3C3M3Y3K3, B4C4M4Y4K4, B5C5M5Y5K5, and B6C6M6Y6K6 in sequence, the powder is distributed in the staggered order of P(1+n*6)→P(4+n*6)→P(5+n*6)→P(3+n*6)→P(6+n*6)→P(2+n*6).

7. The layered multi-channel on-demand powder distribution method according to claim 6, characterized in that: A plurality of groups of powder distributing units are set up. When distributing powder, the same channels of the same powder distributing modules on the plurality of groups of powder distributing units distribute powder at the same time, that is, when distributing powder on the B channel, the B1 channels of the plurality of groups of powder distributing units distribute powder at the same time, and multiple groups P(1+n*6) distribute powder at the same time, and multiple groups P(4+n*6) distribute powder at the same time; the plurality of groups of powder distributing units distribute powder repeatedly in the same staggered arrangement order, so as to complete the powder distribution on the horizontal transverse length of the plurality of powder distributing units.

8. The layered multi-channel on-demand powder distribution method according to claim 1, characterized in that: When distributing powder along the vertical length of an image, let the distributing pixel be L, and the multiple pixels L are sequentially arranged from front to back as L1, L2, L3...Ln. When distributing powder, the powder is distributed in the order of L1, L2, L3...Ln.

9. The layered multi-channel on-demand powder distribution method according to claim 1, characterized in that: When distributing powder, the powder distributing nozzle uses the amplitude of the waveform to control the powder distribution or uses the duty cycle pulse method to control the powder distribution.

10. The layered multi-channel on-demand powder distribution method according to claim 1, characterized in that: After the powder is distributed, the distributed powder is compacted by a powder pressing structure.

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