Digital cloth powder spraying head for large powder amount

Abstract

The present application relates to the technical field of ceramic cloth, and particularly relates to a digital cloth powder spraying head with wider adaptability to large powder quantity. The digital cloth powder spraying head with wider adaptability to large powder quantity comprises a control system, a powder storage hopper, a wire outlet plug, a powder storage seat, a spraying head bottom plate and a plurality of vibrating powder spraying assemblies; the bottom of the powder storage seat is installed on the spraying head bottom plate, the inside of the powder storage seat is provided with a powder storage cavity, and the top of the powder storage seat is provided with a first feeding port; and the top of the powder storage hopper is provided with a second feeding port. The digital cloth powder spraying head with wider adaptability to large powder quantity can realize cloth distribution with large powder quantity, has wide adaptability to different powder cloth, has strong controllability of texture, has natural texture effect, effectively reduces the volume of the spraying head, and solves the problems that the existing through-body brick cloth powder cannot be used for cloth distribution with large powder quantity, has poor adaptability to different powder cloth, cannot finely control the texture of the brick blank, the texture effect is unnatural, and the space occupancy rate of the spraying head is large.

Description

Technical Field

[0001] This invention relates to the field of ceramic fabric technology, and in particular to a digital powder spray nozzle for large powder volumes. Background Technology

[0002] Ceramic tiles can be used to decorate and protect the walls and floors of buildings. With the continuous development of society and economy and the continuous improvement of people's living standards, people's demand for ceramic tiles is increasing, and their requirements for the decorative effect of ceramic tiles are also getting higher and higher. At present, in the ceramic industry, through-body tiles are generally mixed and laid flat, or the powder is distributed by pneumatic control. This cannot achieve the fine distribution of the texture of through-body tiles, and it cannot achieve consistency between the inside and outside. That is, the texture inside the tile body is inconsistent with the texture on the surface. The texture effect is only reflected on the surface of the tile, which is quite different from natural stone, and the texture effect is unnatural. In addition, in the distribution equipment, a row of powder discharge ports and a powder hopper are usually used in combination. The powder is fed from the hopper to the discharge port to achieve distribution. This makes the equipment large in size and space-consuming, and it cannot distribute large amounts of powder. For different powders, the particle size, appearance, and moisture content will affect the distribution of the powder. Therefore, the existing nozzles cannot adapt to different powders, thus affecting the distribution effect of the powder. Summary of the Invention

[0003] In response to the problems raised in the background technology, the purpose of this invention is to provide a digital powder spraying nozzle for large powder volumes, which can achieve large powder volumes, has wide adaptability to different powder materials, strong texture controllability, natural texture effect, and effectively reduces the size of the nozzle. It solves the problems of existing through-body brick powder spraying, which cannot achieve large powder volumes, has poor adaptability to different powder materials, cannot finely control the brick texture, has unnatural texture effect, and has a large nozzle space occupation.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A digital powder spray nozzle for large powder volumes includes a control system, a powder storage hopper, a cable plug, a powder storage base, a nozzle base plate, and multiple vibrating powder spraying components.

[0006] The bottom of the powder storage base is installed on the nozzle base plate. The powder storage base has a powder storage cavity inside and a first feed inlet at the top. The top of the powder storage hopper has a second feed inlet and the bottom of the powder storage hopper has a discharge outlet. The bottom of the powder storage hopper passes through the first feed inlet and is inserted into the powder storage cavity. The powder storage hopper can move up and down relative to the powder storage base.

[0007] A row of the vibrating powder spraying components is installed on both sides of the powder storage base in the width direction, and a row of insertion holes communicating with the powder storage cavity is provided on both sides of the powder storage base in the width direction. The powder inlet end of the vibrating powder spraying component is set to correspond one-to-one with the insertion hole.

[0008] The nozzle base plate is provided with two rows of spray holes, which are used to feed powder. The powder outlet end of the vibrating powder spraying component is located on one side of the spray hole, and the powder outlet range of the vibrating powder spraying component is within the feed range of the corresponding spray hole. The powder inlet end and the powder outlet end of the vibrating powder spraying component are both horizontally set.

[0009] The vibratory powder spraying assembly is electrically connected to the ribbon cable connector, and the ribbon cable connector is electrically connected to the control system. The control system controls the vibration of the vibratory powder spraying assembly through the ribbon cable connector.

[0010] To further explain, the vibration powder spraying assembly includes a bracket, a vibrating element, and a powder spraying box. The bracket is fixedly installed on the powder storage base, the top of the vibrating element is detachably installed on the bracket, the bottom of the vibrating element is fixedly connected to the powder spraying box, and the insertion holes are provided one-to-one with the powder spraying box.

[0011] The powder spraying box is a hollow structure with openings at both ends. The opening at one end of the powder spraying box passes through the corresponding insertion hole and is inserted into the powder storage chamber. The opening at the other end of the powder spraying box is positioned facing the side of the corresponding spray hole.

[0012] To further explain, the bracket includes a vertical part and a clamping part, the vertical part is perpendicularly connected to the clamping part, the vertical part is fixedly installed on the powder storage seat, and the vibrating element is detachably installed on the clamping part.

[0013] To further explain, the clamping part includes a first clamping block and a second clamping block arranged parallel to each other, with a clamping gap between the first clamping block and the second clamping block, and the vibrating element is detachably clamped in the clamping gap between the first clamping block and the second clamping block.

[0014] To further explain, the insertion hole is located between the bracket and the nozzle base plate, the powder spray box is located above the nozzle base plate, the opening at one end of the powder spray box passes through the corresponding insertion hole and is inserted into the powder storage chamber, and the opening at the other end of the powder spray box is located above and to the side of the spray hole.

[0015] To further clarify, the longitudinal section of the powder spraying box is rectangular, and the angle α between the diagonal of the longitudinal section of the powder spraying box and the horizontal plane is greater than 48°.

[0016] To further clarify, in the same row of vibratory powder spraying assemblies, the spacing between two adjacent powder spraying boxes is equal.

[0017] To further explain, the ribbon cable plug is fixedly installed on the powder storage hopper, and the ribbon cable plug is located on both sides of the width direction of the powder storage hopper. The vibrating element of each row of the vibrating powder spraying assembly is electrically connected to the connecting line of the corresponding ribbon cable plug.

[0018] To further explain, the nozzle includes a feed section and a cloth section that are connected to each other, and the cloth section is connected to the lower end of the feed section;

[0019] The feeding section is a tapered hole with a larger cross-sectional area at the top and a smaller cross-sectional area at the bottom. The taper angle λ of the feeding section is 10 to 90°. The cloth section is a round hole, a square hole, or an elliptical hole.

[0020] To further explain, the fabric portion has a circular hole, and the hole diameter of the fabric portion is 2 to 10 times the particle size of the powder.

[0021] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0022] 1. Due to the presence of multiple vibrating powder spraying components and multiple spray holes, digital powder application can be achieved. During powder application, the vibration of different vibrating components can be controlled to control whether different spray holes apply powder, enabling on-demand powder application and achieving fine control over the texture of digital powder application. The texture is highly controllable and can apply powder to brick blanks with a consistent overall texture (internal texture and external texture), resulting in natural and realistic brick blank textures. By using the powder spraying box, large amounts of powder can be applied, and the up-and-down movement of the powder storage hopper and its coordination with the powder spraying box can adapt to the feeding of different powders.

[0023] 2. By controlling the vibration frequency or amplitude of the vibrating component, the amount of powder applied can be controlled. The amount of powder applied is directly proportional to the amplitude and the width of the powder spraying box. Therefore, by controlling the vibration frequency or amplitude of the vibrating component and the width of the powder spraying box, the amount of powder applied can be controlled, which facilitates the control of the amount of powder applied.

[0024] 3. By setting up a double-row vibrating powder spraying assembly, the size of the spray head can be effectively reduced. In addition, the multiple powder spraying boxes adopt a narrow side structure, which allows the spray holes to be arranged in a single row, achieving a straight-line splicing without the need for triangular splicing, thus saving more equipment space. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural schematic diagram of a digital powder spray nozzle for large powder volumes according to an embodiment of the present invention;

[0026] Figure 2 yes Figure 1A magnified structural diagram at point A;

[0027] Figure 3 This is a cross-sectional structural schematic diagram of a digital powder spray nozzle for large powder volumes according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the installation structure of the powder storage hopper and powder storage base for a digital powder spray nozzle with a large powder volume according to an embodiment of the present invention.

[0029] Figure 5 This is a top view of the nozzle base plate of a digital powder spray nozzle for large powder volume according to an embodiment of the present invention.

[0030] Figure 6 This is a bottom view structural schematic diagram of the nozzle base plate of a digital powder spray nozzle for large powder volume according to an embodiment of the present invention.

[0031] Figure 7 This is a cross-sectional view of the nozzle base plate of a digital powder spray nozzle for large powder volume according to an embodiment of the present invention.

[0032] The components include: powder storage hopper 1, second inlet 11, outlet 12, cable plug 2, powder storage base 3, powder storage chamber 31, first inlet 32, insertion hole 33, nozzle base plate 4, spray hole 41, feeding part 411, cloth part 412, vibrating powder spraying assembly 5, bracket 51, vertical part 511, clamping part 512, first clamping block 5121, second clamping block 5122, fastener 513, vibrating component 52, and powder spraying box 53. Detailed Implementation

[0033] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the description of this invention, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0035] In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0036] like Figures 1 to 7 As shown, a digital powder spraying nozzle for large powder volumes includes a control system, a powder storage hopper 1, a cable plug 2, a powder storage base 3, a nozzle base plate 4, and multiple vibrating powder spraying components 5.

[0037] The bottom of the powder storage base 3 is installed on the nozzle base plate 4. The powder storage base 3 has a powder storage cavity 31 inside and a first feed inlet 32 ​​at the top. The top of the powder storage hopper 1 has a second feed inlet 11 and the bottom of the powder storage hopper 1 has a discharge outlet 12. The bottom of the powder storage hopper 1 passes through the first feed inlet 32 ​​and is inserted into the powder storage cavity 31. The powder storage hopper 1 can move up and down relative to the powder storage base 3.

[0038] A row of vibrating powder spraying components 5 is installed on both sides of the powder storage base 3 in the width direction, and a row of insertion holes 33 communicating with the powder storage cavity 31 is provided on both sides of the powder storage base 3 in the width direction. The powder inlet end of the vibrating powder spraying component 5 is arranged in a one-to-one correspondence with the insertion hole 33.

[0039] The nozzle base plate 4 is provided with two rows of spray holes 41. The spray holes 41 are used to feed powder. The powder outlet end of the vibrating powder spraying component 5 is located on one side of the spray hole 41, and the powder outlet range of the vibrating powder spraying component 5 is within the feed range of the corresponding spray hole 41. The powder inlet end and the powder outlet end of the vibrating powder spraying component 5 are both horizontally arranged.

[0040] The vibratory powder spraying assembly 5 is electrically connected to the ribbon cable plug 2, and the ribbon cable plug 2 is electrically connected to the control system. The control system controls the vibration of the vibratory powder spraying assembly 5 through the ribbon cable plug 2.

[0041] By setting up the powder storage hopper 1, the powder storage hopper 1 supplies powder to the powder storage seat 3. When the powder is discharged from the powder storage hopper 1 to the powder storage seat 3, the powder accumulates in the powder storage cavity 31. The powder inlet end and the powder outlet end of the vibrating powder spraying component 5 are both horizontally set, and the powder also accumulates in the vibrating powder spraying component 5. Since the angle of repose of the granular powder is 27° to 48°, the angle of repose of motion is smaller than the angle of repose. Generally, the angle of repose of motion is 70% of the angle of repose of the powder. (It should be noted that the angle of repose is the maximum angle at which the material can remain stationary when stacked in its natural state. The angle of repose of the material is the angle of repose when the material is stationary. The angle of repose of motion refers to the angle of repose of the material during dynamic transport. Due to the motion, the material is in motion...) The angle of repose when the powder is in motion is slightly smaller than the angle of repose when it is at rest. By moving the powder storage hopper 1 up and down relative to the powder storage seat 3, the height of the powder storage hopper 1 is adjusted so that the angle β (hereinafter referred to as "powder spraying angle β") between the line connecting the end of the powder discharge end of the vibrating powder spraying component 5 and the bottom of the powder storage hopper 1 near the end of the vibrating powder spraying component 5 and the horizontal plane is approximately equal to the angle of repose of the powder. This is to accommodate powders with different angles of repose. When the vibrating powder spraying component 5 vibrates to discharge the powder, the powder is squeezed during the vibration. Since the angle of repose of the powder is smaller than the powder spraying angle β, the powder falls from the vibrating powder spraying component 5. When the vibrating powder spraying component 5 stops vibrating, the powder becomes stationary. Since the angle of repose of the powder is approximately equal to the powder spraying angle β, the powder stops falling.

[0042] Because it is equipped with multiple vibrating powder spraying components 5 and multiple spray holes 41, digital powder application can be achieved. When applying powder, the vibration of different vibrating powder spraying components 5 can be controlled to control whether different spray holes 41 apply powder. Powder can be applied on demand, achieving fine control of the texture of digital powder application. The texture is highly controllable and can apply powder to brick blanks with consistent overall texture (internal texture and external texture). The resulting brick blank texture is natural and realistic. Furthermore, through the up and down movement of the powder storage hopper 1 and its cooperation with the vibrating powder spraying components 5, it can adapt to the feeding of different powders.

[0043] By setting up a double-row structure for the vibrating powder spraying components 5, the volume of the nozzle can be effectively reduced. Furthermore, the multiple vibrating powder spraying components 5 adopt a narrow side structure, allowing the spray holes 41 to be arranged in a single row, achieving a straight-line splicing without the need for triangular splicing, thus saving more equipment space.

[0044] To further explain, a linear module can be connected to the powder storage hopper 1 to drive the powder storage hopper 1 to move up and down, which has high motion stability and ensures the accuracy of digital fabric.

[0045] The digital powder spray nozzle for large powder volumes can achieve large powder volumes, has wide adaptability to different powder materials, strong texture controllability, and natural texture effect. It effectively reduces the size of the nozzle and solves the problems of existing through-body brick powder application, such as inability to apply large amounts of powder, poor adaptability to different powder materials, inability to finely control the brick texture, unnatural texture effect, and large nozzle space occupation.

[0046] To further explain, the vibratory powder spraying assembly 5 includes a bracket 51, a vibrating element 52, and a powder spraying box 53. The bracket 51 is fixedly installed on the powder storage base 3. The top of the vibrating element 52 is detachably installed on the bracket 51. The bottom of the vibrating element 52 is fixedly connected to the powder spraying box 53. The insertion hole 33 is provided one-to-one with the powder spraying box 53.

[0047] The powder spraying box 53 is a hollow structure with openings at both ends. The opening at one end of the powder spraying box 53 passes through the corresponding insertion hole 33 and is inserted into the powder storage cavity 31. The opening at the other end of the powder spraying box 53 is set to face the side of the corresponding spray hole 41.

[0048] By setting the vibrating element 52 and the powder spraying box 53, when the powder is discharged from the powder storage hopper 1 to the powder storage base 3, the powder accumulates in the powder storage cavity 31. Since the powder spraying box 53 is inserted into the powder storage cavity 31 after passing through the insertion hole 33, the powder also accumulates in the powder spraying box 53. Since the angle of repose of the granular powder is 27° to 48°, and the angle of repose of motion is smaller than the angle of repose, generally the angle of repose of motion is 70° of the angle of repose. By moving the powder storage hopper 1 up and down relative to the powder storage base 3, the height of the powder storage hopper 1 is adjusted so that the line connecting the end of the powder spraying box 53 away from the powder storage hopper 1 and the end of the bottom of the powder storage hopper 1 near the powder spraying box 53 is aligned with... The included angle β of the horizontal plane (hereinafter referred to as "powder spraying angle β") is approximately equal to the resting angle of the powder to accommodate powders with different resting angles. When the powder spraying box 53 vibrates laterally under the drive of the vibrating member 52 (it should be noted that lateral refers to the arrangement direction of the vibrating powder spraying assembly), the powder is squeezed under the lateral movement of the powder spraying box 53. Since the motion resting angle of the powder is less than the powder spraying angle β, the powder falls from the powder spraying box 53. When the powder spraying box 53 stops vibrating, the powder becomes stationary. Since the resting angle of the powder is approximately equal to the powder spraying angle β, the powder stops falling. Through the up and down movement of the powder storage hopper 1 and its cooperation with the powder spraying box 53, it can adapt to the feeding of different powders.

[0049] Furthermore, the amount of powder applied is directly proportional to the width of the powder spraying box 53 and the amplitude and intensity of the vibrating element 52. Due to the influence of the vibration frequency of the vibrating element 52, the width of the powder spraying box 53 can reach 2-10mm. The larger the width of the powder spraying box 53, the greater the amount of powder applied, thereby achieving a large amount of powder application. Moreover, by controlling the vibration frequency or amplitude of the vibrating element 52, the amount of powder applied can be controlled. The amount of powder applied is directly proportional to the amplitude and the width of the powder spraying box 53. Therefore, by controlling the vibration frequency or amplitude of the vibrating element 52 and the width of the powder spraying box 53, the amount of powder applied can be controlled, making it convenient to control the amount of powder applied.

[0050] It should be noted that after the powder spraying box 53 passes through the corresponding insertion hole 33, it is inserted into the powder storage cavity 31. A gap is left between the powder spraying box 53 and the insertion hole 33 so that the powder spraying box 53 can vibrate while passing through the insertion hole 33.

[0051] To further explain, the bracket 51 includes a vertical part 511 and a clamping part 512. The vertical part 511 is perpendicularly connected to the clamping part 512. The vertical part 511 is fixedly installed on the powder storage seat 3, and the vibrating member 52 is detachably installed on the clamping part 512.

[0052] By setting the vertical part 511 and the clamping part 512, the vertical part 511 is fixedly installed on the powder storage seat 3, and the vertical part 511 is perpendicularly connected to the clamping part 512, so that the vibrating element 52 is installed on the side of the bracket 51 away from the powder storage seat 3, the installation structure is stable, and the vibrating element 52 is detachably installed on the clamping part 512, which is convenient for disassembly and assembly. When equipment maintenance is required, it is convenient to remove the vibrating element 52 from the clamping part 512, and it is also convenient to adjust the texture effect of the fabric.

[0053] Specifically, the clamping part 512 includes a first clamping block 5121 and a second clamping block 5122 arranged parallel to each other, with a clamping gap between the first clamping block 5121 and the second clamping block 5122, and the vibrating member 52 is detachably clamped in the clamping gap between the first clamping block 5121 and the second clamping block 5122.

[0054] By setting the first clamping block 5121 and the second clamping block 5122, with a clamping gap between the first clamping block 5121 and the second clamping block 5122, the top of the vibrating element 52 is clamped in the clamping gap between the first clamping block 5121 and the second clamping block 5122, which ensures the installation stability of the vibrating element 52 while facilitating disassembly and installation.

[0055] To further explain, a fastener 513 can be used to pass through the first clamping block 5121, the vibrating element 52, and the second clamping block 5122 to detachably install the vibrating element 52 in the clamping gap between the first clamping block 5121 and the second clamping block 5122. Specifically, the fastener 513 is a screw, bolt, or other fastener. By using the fastener 513 to install the vibrating element 52 in the clamping gap between the first clamping block 5121 and the second clamping block 5122, the installation stability of the vibrating element 52 can be effectively improved, thereby preventing the vibrating element 52 from loosening and falling off during vibration.

[0056] Specifically, the insertion hole 33 is disposed between the bracket 51 and the nozzle base plate 4, the powder box 53 is disposed above the nozzle base plate 4, the opening at one end of the powder box 53 passes through the corresponding insertion hole 33 and is inserted into the powder storage chamber 31, and the opening at the other end of the powder box 53 is located on the side and above the nozzle 41.

[0057] By positioning the powder spraying box 53 above the nozzle base plate 4, the powder spraying box 53 is prevented from being obstructed by the nozzle base plate 4 when vibrating under the drive of the vibrating member 52, ensuring the smooth vibration of the powder spraying box 53. In addition, the opening at one end of the powder spraying box 53 passes through the corresponding insertion hole 33 and is inserted into the powder storage chamber 31, while the opening at the other end of the powder spraying box 53 is located on the side and above the spray hole 41. This allows the powder material discharged from the powder spraying box 53 to be smoothly discharged into the spray hole 41, ensuring that the powder discharge range of the powder discharge end of the vibrating powder spraying assembly 5 is within the feeding range of the corresponding spray hole 41, preventing the powder material from being discharged into other positions of the nozzle base plate 4, and ensuring the fineness of the fabric application.

[0058] To further explain, the longitudinal section of the powder spraying box 53 is rectangular, and the angle α between the diagonal of the longitudinal section of the powder spraying box 53 and the horizontal plane is greater than 48°.

[0059] By defining the longitudinal section of the powder spraying box 53 as rectangular, the powder can easily accumulate in the powder spraying box 53. When the vibrating element 52 vibrates, it drives the powder spraying box 53 to vibrate, causing the powder to be discharged from the powder spraying box 53 into the corresponding spray hole 41, thereby completing the digital powder application. Since the angle between the diagonal of the longitudinal section of the powder spraying box 53 and the horizontal plane will limit the accumulation angle of the powder in the powder spraying box 53, the angle α between the diagonal of the longitudinal section of the powder spraying box 53 and the horizontal plane is limited to 48°. The angle of repose of the granular powder is 27° to 48°, ensuring that the powder spraying box 53 can adapt to the angle of repose of most powders, thereby improving the adaptability of the digital powder application nozzle for large powder volumes to different powders.

[0060] Preferably, in the same row of vibratory powder spraying assemblies 5, the spacing between two adjacent powder spraying boxes 53 is equal.

[0061] Since the distance between two adjacent powder spraying boxes 53 in the same row of the vibrating powder spraying components 5 is equal, the digital powder spraying head for large powder volume is more compact, which can effectively improve the fineness of the digital powder texture of the digital powder spraying head for large powder volume and ensure the texture effect of the fabric.

[0062] Specifically, the ribbon cable plug 2 is fixedly installed on the powder storage hopper 1, and the ribbon cable plug 2 is located on both sides of the width direction of the powder storage hopper 1. The vibrating element 52 of each row of the vibrating powder spraying assembly 5 is electrically connected to the connecting line of the corresponding ribbon cable plug 2.

[0063] By placing the ribbon cable plug 2 on both sides of the width direction of the powder storage hopper 1, and electrically connecting each row of vibrating elements 52 to the corresponding connecting wire of the ribbon cable plug 2, it is possible to facilitate cable routing, organize the connecting wire of the ribbon cable plug 2, and ensure the safety of the digital powder spraying head used for large powder volumes.

[0064] To further explain, the nozzle 41 includes a feeding section 411 and a cloth section 412 that are connected to each other, and the cloth section 412 is connected to the lower end of the feeding section 411;

[0065] The feeding part 411 is a tapered hole with a larger cross-sectional area at the top and a smaller cross-sectional area at the bottom. The taper angle λ of the feeding part 411 is 10 to 90°. The cloth part 412 is a round hole, a square hole, or an elliptical hole.

[0066] By providing the feeding section 411 and the spreading section 412 in the spray hole 41, the spreading section 412 is connected to the lower end of the feeding section 411. The feeding section 411 is a tapered hole with a larger cross-sectional area at the top and a smaller cross-sectional area at the bottom, allowing the powder to gradually enter the spreading section 412 along the feeding section 411, ultimately achieving spreading and improving the smoothness of powder feeding, ensuring that the powder is accurately spread at the set position. Furthermore, the taper angle of the feeding section 411 is limited to 10 to 90 degrees to ensure that the powder can enter the spreading section 412 from the feeding section 411. If the taper angle of the feeding section 411 is too large, the powder may be stuck on the hole wall of the feeding section 411, affecting the spreading effect.

[0067] Preferably, the fabric portion 412 is a circular hole, and the diameter of the fabric portion 412 is 2 to 10 times the particle size of the powder.

[0068] To further explain, when applying powder to the entire brick blank, the particle size of the powder is generally 0.1 to 5 mm. By limiting the aperture of the application section 412 to 2 to 10 times the particle size of the powder, it is ensured that the powder can enter the application section 412 from the feed section 411 of the spray hole 41 and then be discharged from the application section 412, thereby ensuring the accuracy of the discharge, effectively improving the fineness of the textured application, and ensuring the continuity of the texture.

[0069] Preferably, the vibrating element 52 is a multi-core piezoelectric ceramic vibrating plate.

[0070] The vibrating element 52 uses a multi-core piezoelectric ceramic vibrating plate. "Multi-core" means that multiple vibration sources resonate together on a single vibrating plate, such as... Figure 1 As shown, each of the vibrating elements 52 has 3 rows of 6 piezoelectric ceramics arranged vertically. When the piezoelectric ceramics vibrate together in the same direction, they can enhance the amplitude and intensity of the vibration of the vibrating element 52. The more piezoelectric ceramics there are, the greater the amplitude and intensity of the vibration, which is beneficial for achieving a large amount of powder distribution. In addition, since the multi-core piezoelectric ceramic vibrating plate is an electrically controllable vibration frequency component, the vibration start and stop and vibration frequency of the vibrating element 52 are easy to control, thereby improving the controllability of digital fabric.

[0071] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the vibrating element 52 is a sheet-shaped vibrating element, and more specifically, the vibrating element 52 is a multi-core piezoelectric ceramic vibrating sheet, which has a simple vibration structure and good vibration effect.

[0072] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A digital cloth powder spray head for large powder volumes, characterized by, The vibration powder spraying assembly comprises a support, a vibrating member and a powder spraying box. The bottom of the powder storage seat is mounted on the spray head bottom plate, the inside of the powder storage seat is provided with a powder storage cavity, and the top of the powder storage seat is provided with a first feeding port. The top of the powder storage hopper is provided with a second feeding port, the bottom of the powder storage hopper is provided with a discharging port, the bottom of the powder storage hopper is inserted into the powder storage cavity through the first feeding port, and the powder storage hopper can move up and down relative to the powder storage seat. The two sides of the powder storage seat in the width direction are respectively provided with a row of vibrating powder spraying assemblies, and the two sides of the powder storage seat in the width direction are respectively provided with a row of insertion holes communicating with the powder storage cavity. The powder inlet end of the vibrating powder spraying assembly is arranged in one-to-one correspondence with the insertion hole.

2. The digital cloth powder spray head for large powder quantities according to claim 1, characterized in that, The spray head bottom plate is provided with two rows of spray holes for discharging powder, the powder outlet end of the vibrating powder spraying assembly is arranged in one-to-one correspondence on one side of the spray hole, and the powder outlet range of the powder outlet end of the vibrating powder spraying assembly is within the feeding range of the corresponding spray hole. The powder inlet end and the powder outlet end of the vibrating powder spraying assembly are both horizontally arranged.

3. The digital cloth powder spray head for large powder quantities according to claim 2, characterized in that The vibrating powder spraying assembly is electrically connected with the row line plug, the row line plug is electrically connected with the control system, and the control system controls the vibration of the vibrating powder spraying assembly through the row line plug.

4. The digital cloth powder spray head for large powder quantities according to claim 3, characterized in that, The vibrating powder spraying assembly comprises a support, a vibrating member and a powder spraying box.

5. The digital cloth powder spray head for large powder quantities according to claim 2, wherein, The support is fixedly mounted on the powder storage seat, the top of the vibrating member is detachably mounted on the support, the bottom of the vibrating member is fixedly connected with the powder spraying box, and the insertion hole is arranged in one-to-one correspondence with the powder spraying box.

6. The digital cloth powder spray head for large powder quantities according to claim 2, wherein, The powder spraying box is a hollow structure with two open ends.

7. The digital cloth powder spray head for large powder quantities according to claim 2, wherein, The opening of one end of the powder spraying box is inserted into the powder storage cavity through the corresponding insertion hole, and the opening of the other end of the powder spraying box is arranged towards one side of the corresponding spray hole.

8. The digital cloth powder spray head for large powder quantities according to claim 2, wherein, The support comprises a vertical part and a clamping part. The vertical part is perpendicularly connected with the clamping part, the vertical part is fixedly mounted on the powder storage seat, and the vibrating member is detachably mounted on the clamping part. The clamping part comprises a first clamping block and a second clamping block arranged in parallel with each other. The first clamping block and the second clamping block are arranged in the clamping gap between the first clamping block and the second clamping block. The insertion hole is arranged between the support and the spray head bottom plate, the powder spraying box is arranged above the spray head bottom plate, the opening of one end of the powder spraying box is inserted into the powder storage cavity through the corresponding insertion hole, and the opening of the other end of the powder spraying box is arranged above one side of the spray hole. The longitudinal section of the powder spraying box is a rectangle, and the angle a between the diagonal line in the longitudinal section of the powder spraying box and the horizontal plane is greater than 48 degrees. In the same row of vibrating powder spraying assemblies, the distance between the adjacent two powder spraying boxes is equal. The row line plug is fixedly mounted on the powder storage hopper, and the row line plug is arranged on both sides of the powder storage hopper in the width direction. The vibrating member of each row of vibrating powder spraying assemblies is electrically connected with the connecting line of the corresponding row line plug.

9. The digital cloth powder spray head for large powder quantities of claim 1, wherein, The nozzle comprises a feeding part and a distributing part connected in series, and the distributing part is connected to the lower end of the feeding part; The feeding part is a taper hole with the cross-sectional area decreasing from top to bottom, and the taper angle λ of the feeding part is 10-90°, and the distributing part is a round hole, a square hole or an elliptical hole.

10. The digital cloth powder spray head for large powder quantities according to claim 9, characterized in that, The distributing part is a round hole, and the hole diameter of the distributing part is 2-10 times of the particle size of the powder.

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