A digital cloth powder device

Abstract

The application discloses a digital cloth powder device, which comprises a cloth powder body and a powder amount control assembly. The cloth powder body is formed with a powder inlet, a powder storage cavity and a powder outlet which are sequentially communicated. The powder amount control assembly is used for controlling the powder falling amount of the powder outlet, and comprises an electrostatic assembly, a first electrode and a second electrode. The electrostatic assembly is installed on the cloth powder body or outside the cloth powder body. The first electrode and the second electrode are arranged in the powder storage cavity. The electrostatic assembly is electrically connected with the first electrode. The second electrode is grounded. The side wall at the powder outlet of the cloth powder body is grounded. The application improves the structure of the digital cloth powder device, improves the cloth powder effect, expands the application range, meets the cloth powder demand of different powder materials, realizes the on-demand cloth powder, and makes the whole brick have more fine texture.

Description

Technical Field

[0001] This invention relates to the field of digital printer technology, and more particularly to a digital toner application device. Background Technology

[0002] Ceramic tiles can be used to decorate and protect the walls and floors of buildings. With the continuous development of the social economy and the continuous improvement of people's living standards, people's demand for ceramic tiles is increasing day by day, and their requirements for the decorative effect of ceramic tiles are also getting higher and higher.

[0003] Existing powder distribution equipment typically uses a row of powder inlets in conjunction with a powder hopper. Powder is fed from the hopper to the inlets, thus achieving powder distribution. However, this type of equipment generally mixes and spreads the powder or uses pneumatic control to distribute it for producing through-body bricks. It cannot achieve the fine powder distribution required for the texture of through-body bricks. The consistency between the surface and the inner layer is poor, meaning that the texture inside the brick is inconsistent with the texture on the surface. The texture effect is only reflected on the surface of the brick, which is significantly different from natural stone and results in an unnatural texture effect. Summary of the Invention

[0004] The main objective of this invention is to provide a digital powder application device that improves the powder application effect, thereby giving the through-body bricks a finer texture.

[0005] To achieve the above objectives, the present invention provides a digital powder application device, comprising:

[0006] The powder-dispensing body comprises a powder inlet, a powder storage chamber, and a powder outlet connected in sequence; and

[0007] A powder quantity control component is used to control the amount of powder falling from the powder outlet. The powder quantity control component includes an electrostatic component, a first electrode, and a second electrode. The electrostatic component is installed on the powder distribution body or outside the powder distribution body. The first electrode and the second electrode are located inside the powder storage cavity. The electrostatic component is electrically connected to the first electrode, the second electrode is grounded, and the side wall at the powder outlet of the powder distribution body is grounded.

[0008] Optionally, the electrostatic component includes an electrostatic generator and an electrostatic eliminator, wherein the electrostatic generator is electrically connected to the first electrode, and the electrostatic eliminator is electrically connected to the first electrode and grounded.

[0009] Optionally, the digital powder application device further includes a baffle. The powder application body includes a first sidewall and a second sidewall disposed opposite to each other. The baffle is installed in the powder application body and disposed close to the first sidewall. The baffle and the first sidewall surround to form a feeding channel, and the top of the feeding channel constitutes the powder inlet.

[0010] Optionally, the baffle is detachably installed inside the powder cloth body; or the baffle is height-adjustable and disposed inside the powder cloth body.

[0011] Optionally, a powder-feeding channel is provided at the bottom end of the powder-feeding body near the second sidewall, and the bottom end of the powder-feeding channel constitutes the powder-feeding opening.

[0012] Optionally, the first electrode and the second electrode are parallel to each other, and both the first electrode and the second electrode are inclined to form the powder storage cavity; wherein, one end of the first electrode is disposed on the first side wall, and the other end of the first electrode is disposed on the bottom wall of the powder dispensing body; one end of the second electrode is disposed in the middle of the powder dispensing body or on the baffle, and the other end of the second electrode is disposed on the second side wall.

[0013] Optionally, the second electrode is adapted to be at a distance from the powder accumulation surface of the powder storage chamber, and the second electrode is arranged parallel to the powder accumulation surface or the second electrode and the extension line of the powder accumulation surface form an angle with the opening facing the powder inlet or the powder outlet, wherein the angle is an acute angle.

[0014] Optionally, the amount of powder falling from the powder outlet is directly proportional to the action time, voltage, and duty cycle of the electrostatic generator.

[0015] Optionally, the powder outlet is provided with a nozzle for discharging powder.

[0016] Optionally, the nozzle orifice is a slit, cylindrical, rectangular, polygonal, or elliptical shape.

[0017] In the technical solution of the present invention, the digital powder application device includes a powder application body and a powder quantity control component; the powder application body has a powder inlet, a powder storage chamber and a powder outlet connected in sequence; the powder quantity control component is used to control the amount of powder falling from the powder outlet, and the powder quantity control component includes an electrostatic component, a first electrode and a second electrode. The electrostatic component is installed on the powder application body or outside the powder application body, the first electrode and the second electrode are disposed in the powder storage chamber, the electrostatic component is electrically connected to the first electrode, the second electrode is grounded, and the side wall at the powder outlet of the powder application body is grounded.

[0018] During the powder application process, the powder enters the powder storage chamber through the powder inlet and remains stationary within the chamber under the influence of friction. The first electrode becomes charged under the action of the electrostatic component, forming an electric field with the second electrode. The powder becomes charged under this electric field, and its polarity is opposite to that of the second electrode. Due to the attraction of opposite charges, the charged powder flies towards the second electrode under the influence of the electric field. Upon contact with the second electrode, its polarity changes to the same as that of the second electrode. At this point, due to the repulsion of like charges, the powder with the changed polarity is bounced away by the second electrode and then falls towards the powder outlet under the influence of gravity. Since the sidewall of the powder outlet is grounded, the powder loses its charge upon contact with the sidewall. When the electrostatic generator of the electrostatic component stops operating and the electrostatic eliminator operates, the static electricity on the first electrode is eliminated, the electric field disappears, and the charged powder no longer flies towards the second electrode, thus stopping the powder application. This achieves on-demand powder application, improves the powder application effect, and results in a finer texture for the through-body brick. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the digital powder application device of the present invention;

[0021] Figure 2 This is a state diagram of the digital powder application device of the present invention during the feeding stage in one embodiment;

[0022] Figure 3 This is a state diagram at the beginning of the material suction stage in one embodiment of the digital powder application device of the present invention;

[0023] Figure 4 This is a state diagram of the digital powder application device of the present invention when the material suction stage is completed in one embodiment;

[0024] Figure 5 This is a state diagram of the digital powder application device of the present invention during the material feeding stage in one embodiment;

[0025] Figure 6 This is a schematic diagram of the nozzle structure in the first embodiment of the digital powder application device of the present invention;

[0026] Figure 7 This is a schematic diagram of the nozzle structure in the second embodiment of the digital powder application device of the present invention;

[0027] Figure 8This is a schematic diagram of the nozzle structure in the third embodiment of the digital powder application device of the present invention;

[0028] Figure 9 This is a schematic diagram of the nozzle structure in the fourth embodiment of the digital powder application device of the present invention;

[0029] Figure 10 This is a schematic diagram of the nozzle structure in the fifth embodiment of the digital powder application device of the present invention.

[0030] Explanation of icon numbers:

[0031] 10. Powder distribution body; 20. Powder quantity control component; 30. Baffle; 10a. Powder inlet; 10b. Powder storage chamber; 10c. Powder discharge port; 21. Static electricity component; 22. First electrode; 23. Second electrode; 211. Static electricity generator; 212. Static electricity eliminator; 101. First sidewall; 102. Second sidewall; 111. Powder accumulation surface; 110. Nozzle.

[0032] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0036] This invention proposes a digital powder application device, which can be applied to the manufacture of ceramic tiles or other products that can be made by powder application, and is not limited thereto.

[0037] Reference Figures 1 to 5 In one embodiment of the present invention, the digital powder application device includes a powder application body 10 and a powder quantity control component 20. The powder application body 10 has a powder inlet 10a, a powder storage chamber 10b, and a powder outlet 10c connected sequentially from top to bottom. The powder quantity control component 20 is used to control the amount of powder falling from the powder outlet 10c. The powder quantity control component 20 includes an electrostatic component 21, a first electrode 22, and a second electrode 23. The electrostatic component 21 is installed on the powder application body 10 or outside the powder application body 10. The first electrode 22 and the second electrode 23 are disposed in the powder storage chamber 10b. The electrostatic component 21 is electrically connected to the first electrode 22, the second electrode 23 is grounded, and the side wall at the powder outlet 10c of the powder application body 10 is grounded.

[0038] In this embodiment, the powder-spreading body 10 can be arranged in a funnel shape, the powder inlet 10a can be arranged at the top of the powder-spreading body 10, and the powder outlet 10c can be arranged at the bottom of the powder-spreading body 10, which is not limited here.

[0039] The electrostatic component 21 may include an electrostatic generator 211 and an electrostatic eliminator 212. The electrostatic generator 211 is connected to the first electrode 22 via a wire, and the electrostatic eliminator 212 is electrically connected to the first electrode 22 and grounded. In this embodiment, the second electrode 23 is grounded to avoid breakdown or arcing. Of course, the first electrode 22 and the second electrode 23 can also be interchanged, with comparable powder distribution effect. Preferably, the first electrode 22 is connected to the electrostatic generator 211, which makes the electric field less prone to breakdown and facilitates better control of powder falling.

[0040] The timing of the electrostatic generator 211 and the electrostatic eliminator 212 allows for on-demand control of powder drop, thus achieving powder distribution as needed. The amount of powder falling from the powder drop port 10c is directly proportional to the operating time, voltage, and duty cycle of the electrostatic generator 211; controlling the voltage or duty cycle controls the amount of powder falling per unit time.

[0041] In addition, the powder quantity control component 20 may also include a controller, which is connected to the electrostatic generator 211 and the electrostatic eliminator 212 respectively, for controlling the operation of the electrostatic generator 211 and the electrostatic eliminator 212 to realize automatic control of the powder quantity at the powder discharge port 10c, thereby improving the efficiency of production and manufacturing.

[0042] During the powder application process, the powder enters the powder storage chamber 10b from the powder inlet 10a. Under the action of friction, the powder remains stationary within the powder storage chamber 10b. Figure 2 As shown; the first electrode 22 becomes charged under the action of the electrostatic component 21 and forms an electric field with the second electrode 23. The powder becomes charged under the action of the electric field, and the polarity of the powder is opposite to that of the second electrode 23. Since opposite charges attract, the charged powder flies towards the second electrode 23 under the action of the electric field. After the charged powder comes into contact with the second electrode 23, its polarity becomes the same as that of the second electrode 23, as shown. Figure 3 and Figure 4 As shown; at this time, due to the repulsion of like charges, the powder with changed polarity is bounced away by the second electrode 23, and then falls into the powder inlet 10c under the action of gravity, as shown. Figure 5 As shown, because the sidewall at the powder inlet 10c is grounded, the powder loses its charge after contacting the sidewall. When the electrostatic generator 211 of the electrostatic component 21 stops working and the electrostatic eliminator 212 works, the static electricity on the first electrode 22 is eliminated, the electric field disappears, and the charged powder no longer flies towards the second electrode 23, thus stopping the powder falling. In this way, powder is applied on demand, improving the powder application effect and giving the through-body brick a finer texture.

[0043] Since the powder eliminates static electricity after passing through the powder inlet 10c, and the digital powder distribution device is a non-pneumatically controlled powder distribution device with no pressurized gas inside, the powder no longer spreads after leaving the powder inlet 10c, but accumulates into a point or line, thereby achieving the purpose of distributing the powder as needed, which greatly improves the fineness and consistency of the texture of the surface and inner layers of the through-body brick.

[0044] Reference Figures 1 to 3 In one embodiment, the digital powder application device may further include a baffle 30. The powder application body 10 includes a first sidewall 101 and a second sidewall 102 disposed opposite to each other. The baffle 30 is installed in the powder application body 10 and disposed close to the first sidewall 101. The baffle 30 and the first sidewall 101 surround each other to form a feeding channel. The top of the feeding channel forms a powder inlet 10a.

[0045] In this embodiment, the baffle 30 is detachably installed inside the powder-spreading body 10; or the baffle 30 is height-adjustable and disposed inside the powder-spreading body 10.

[0046] After the powder enters the powder body through the powder inlet 10a, it is blocked by the baffle 30 and flows along the inclined surface to the powder storage cavity 10b. Under the action of friction, the powder remains stationary in the powder storage cavity 10b.

[0047] The height of the baffle 30 can be adjusted to accommodate powders with different angles of repose, thus expanding its applicability and meeting the powder distribution requirements of various powders. It should be noted that the height of the baffle 30 can be adjusted by using baffles 30 of different lengths. Each baffle 30 corresponds to one or more materials. When changing materials, the current baffle 30 is removed, and a baffle 30 of the corresponding specification is installed. Alternatively, to reduce downtime for disassembling and reassembling the baffle 30, its height can also be adjusted using telescopic or lifting structures to match the required angle of repose for different materials.

[0048] Please refer to Figures 1 to 5 In one embodiment, the bottom of the powder-dispensing body 10 is provided with a powder-dispensing channel at one end near the second sidewall 102, and the bottom end of the powder-dispensing channel forms a powder-dispensing port 10c.

[0049] In this embodiment, the first electrode 22 and the second electrode 23 are arranged parallel or approximately parallel to each other, and both the first electrode 22 and the second electrode 23 are inclined to form a powder storage cavity 10b; wherein, one end of the first electrode 22 is disposed on the first side wall 101, and the other end of the first electrode 22 is disposed on the bottom wall of the powder dispensing body 10; one end of the second electrode 23 is disposed in the middle of the powder dispensing body 10 or on the baffle 30, and the other end of the second electrode 23 is disposed on the second side wall 102.

[0050] To improve the uniformity of the electric field and thus the accuracy of powder drop adjustment, in this embodiment, the second electrode 23 is adapted to be at a distance from the powder accumulation surface 111 of the powder storage chamber 10b. The second electrode 23 is set parallel to the powder accumulation surface 111 or the second electrode 23 and the extension line of the powder accumulation surface 111 form an angle with the opening facing the powder inlet 10a or the powder drop outlet 10c, and the angle is acute.

[0051] The second electrode 23 is set parallel to the powder accumulation surface 111, which is beneficial to the uniform electric field; and when the second electrode 23 is at a certain angle to the extension line of the powder accumulation surface 111, it is beneficial to control the adsorption of powder.

[0052] In this embodiment, the powder discharge channel can be vertical or inclined at a certain angle. A vertically positioned powder discharge channel facilitates powder falling, while an inclined channel is more effective in eliminating static electricity in the powder.

[0053] Reference Figures 5 to 10In some embodiments, the powder outlet 10c is provided with a nozzle 110 for discharging powder. The nozzle 110 can be a slit, cylindrical, rectangular, polygonal, or elliptical shape, etc., which is not limited here.

[0054] It should be noted that the slit nozzle 110 is beneficial for controlling the width of the powder drop point and is less prone to clogging; the cylindrical nozzle 110 is beneficial for the powder to form a round dot; the rectangular and polygonal nozzles 110, due to their large contact area, are beneficial for eliminating static electricity; and the elliptical nozzle 110 is beneficial for controlling the width and length of the powder drop point.

[0055] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A digital powder application device, characterized in that, include: The powder-dispensing body has a powder inlet, a powder storage chamber, and a powder outlet connected sequentially from top to bottom; A powder quantity control component is used to control the amount of powder dispensed from the powder outlet. The powder quantity control component includes an electrostatic component, a first electrode, and a second electrode. The electrostatic component is mounted on or outside the powder dispensing body. The first and second electrodes are located within the powder storage cavity. The electrostatic component is electrically connected to the first electrode, and the second electrode is grounded. The side wall of the powder outlet of the powder dispensing body is grounded. A baffle is detachably installed in the powder-coating body; or the baffle is height-adjustable and set in the powder-coating body; the powder-coating body includes a first sidewall and a second sidewall disposed opposite to each other, the baffle is installed in the powder-coating body and disposed near the first sidewall, the baffle and the first sidewall form a feeding channel, the top of the feeding channel constitutes the powder inlet, and the bottom of the powder-coating body near the second sidewall is provided with a powder dropping channel, the bottom of the powder dropping channel constitutes the powder dropping outlet; The first electrode and the second electrode are parallel to each other, and both the first electrode and the second electrode are inclined to form the powder storage cavity; wherein, one end of the first electrode is disposed on the first side wall, and the other end of the first electrode is disposed on the bottom wall of the powder dispensing body; one end of the second electrode is disposed on the middle part of the powder dispensing body or the baffle, and the other end of the second electrode is disposed on the second side wall; the second electrode is adapted to maintain a distance from the powder accumulation surface of the powder storage cavity, and the second electrode is disposed parallel to the powder accumulation surface or the second electrode and the extension line of the powder accumulation surface form an angle with the opening facing the powder inlet or the powder outlet, and the angle is an acute angle.

2. The digital powder application device as described in claim 1, characterized in that, The electrostatic component includes an electrostatic generator and an electrostatic eliminator. The electrostatic generator is electrically connected to the first electrode, and the electrostatic eliminator is electrically connected to the first electrode and grounded.

3. The digital powder application device as described in claim 2, characterized in that, The amount of powder falling from the powder inlet is directly proportional to the action time, voltage, and duty cycle of the electrostatic generator.

4. The digital powder application device as described in claim 1, characterized in that, The powder outlet is equipped with a nozzle for discharging powder.

5. The digital powder application device as described in claim 4, characterized in that, The nozzle orifice can be a slit, cylindrical, polygonal, or elliptical shape.

Images