CN114851552A - Powder feeding device for powder ink-jet bonding printing - Google Patents
Powder feeding device for powder ink-jet bonding printing Download PDFInfo
- Publication number
- CN114851552A CN114851552A CN202210632014.XA CN202210632014A CN114851552A CN 114851552 A CN114851552 A CN 114851552A CN 202210632014 A CN202210632014 A CN 202210632014A CN 114851552 A CN114851552 A CN 114851552A
- Authority
- CN
- China
- Prior art keywords
- powder
- tank
- weighing
- mixing tank
- negative pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/141—Processes of additive manufacturing using only solid materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/314—Preparation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/321—Feeding
- B29C64/336—Feeding of two or more materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Accessories For Mixers (AREA)
Abstract
The invention provides a powder feeding device for powder ink-jet bonding printing, which comprises a negative pressure generator, a weighing tank, a powder falling control mechanism, a powder mixing tank and a powder discharging control mechanism, wherein the negative pressure generator is connected with the weighing tank; a discharge port of the negative pressure generator is communicated with the weighing tank, and a powder suction port is arranged on the negative pressure generator; the negative pressure is generated in the negative pressure generator, so that the powder suction port can absorb powder and enter the weighing tank; the weighing tank is provided with a weighing sensor so as to calculate the weight of the powder in the weighing tank; the feed inlet of the powder falling control mechanism is communicated with the discharge outlet of the weighing tank, and the discharge outlet of the powder falling control mechanism is communicated with the feed inlet of the powder mixing tank, so that the powder amount of the powder entering the powder mixing tank from the weighing tank is controlled; the powder outlet control mechanism is connected with a discharge hole of the powder mixing tank so as to control the discharge of the powder mixing tank; by adopting the scheme, the whole-course accurate weighing can be realized, the closed loop of each link can be realized, each link can be stably executed under the condition that powder gravels generate static electricity, and the interference of various external complex conditions can be avoided.
Description
Technical Field
The invention belongs to the technical field of powder feeding devices for powder ink-jet bonding printing, and particularly relates to a powder feeding device for powder ink-jet bonding printing.
Background
Powder ink-jet bonding printing, which is also called droplet jet 3D printing, ink-jet 3D printing or 3DP and the like; the working principle is that the powder spreading mechanism accurately spreads a thin layer of powder material on a processing platform, then the ink-jet printing head sprays a layer of adhesive on the powder according to the cross-sectional shape of the layer, and the thin layer of powder sprayed to the adhesive is solidified; then, a layer of powder with a certain thickness is laid on the layer, and the printing head sprays the adhesive according to the shape of a section; and stacking layer by layer from bottom to top until all layers of a part are printed, and finally cleaning the uncured powder to obtain a three-dimensional object prototype.
In the process of powder ink-jet bonding, printing and forming, powder materials are the most important raw materials, strong static electricity can be generated when the powder materials and the iron tank and the like of each layer of base powder are rubbed, the electronic actuating mechanism is easily and strongly influenced, and if the traditional mode is used, the long-time stable work is difficult; the existing weighing modes on the market are all weighing sensors, but when structural limitation exists or powder materials are unevenly distributed, deviation and design limitation are easily caused, and the reliability of the whole structural design is also poor.
Based on the technical problems in the powder ink jet bonding printing as described above, there has been no relevant solution; there is therefore a pressing need to find effective solutions to the above problems.
Disclosure of Invention
The invention aims to provide a powder feeding device for powder ink-jet bonding printing aiming at the defects in the prior art and aims to solve the problem of material feeding weight detection in the existing powder ink-jet bonding printing.
The invention provides a powder feeding device for powder ink-jet bonding printing, which comprises a negative pressure generator, a weighing tank, a powder falling control mechanism, a powder mixing tank and a powder discharging control mechanism, wherein the negative pressure generator is connected with the weighing tank; a discharge port of the negative pressure generator is communicated with the weighing tank, and a powder suction port is arranged on the negative pressure generator; the negative pressure is generated in the negative pressure generator, so that the powder suction port can absorb powder and enter the weighing tank; the weighing tank is provided with a weighing sensor so as to calculate the weight of the powder in the weighing tank; the feed inlet of the powder falling control mechanism is communicated with the discharge outlet of the weighing tank, and the discharge outlet of the powder falling control mechanism is communicated with the feed inlet of the powder mixing tank, so that the powder amount of the powder entering the powder mixing tank from the weighing tank is controlled; the powder outlet control mechanism is connected with the discharge hole of the powder mixing tank so as to control the discharge of the powder mixing tank.
Furthermore, the weighing tank is of a cone structure, and the round bottom surface of the weighing tank is positioned on the upper end surface; the negative pressure generator is arranged at the top of the weighing tank; the three weighing sensors are uniformly arranged on the side face of the cone structure and can detect the weight change of the weighing tank, so that analog quantity is given.
Further, a vacuum pump is arranged in the negative pressure generator; the positive pressure air source outside the negative pressure generator generates negative pressure through the vacuum pump, so that powder can be sucked from the powder tank outside the machine to the weighing tank through the powder sucking port.
Further, the powder falling control mechanism comprises a pneumatic butterfly valve, a first gas source and a second gas source, and the pneumatic butterfly valve is arranged on a pipeline between the discharge hole of the weighing tank and the feed inlet of the powder mixing tank; when the first air source is in a ventilation state, the pneumatic butterfly valve is in a normally closed state; when the first air source is in a closed state and the second air source is in an open state, the pneumatic butterfly valve is in an open state; the second air source is also used for controlling the opening and closing angle of a valve plate of the pneumatic butterfly valve.
Further, be equipped with rabbling mechanism in the powder jar, rabbling mechanism is used for stirring the powder and the curing agent of powder jar of mixing and mixes.
Further, the stirring mechanism comprises a stirring scraper, and a speed reduction motor is arranged outside the powder mixing tank; the transmission shaft of the speed reducing motor extends into the powder mixing tank and is connected with the stirring scraper, so that the stirring scraper can be driven to rotate.
Further, the powder mixing tank is of a cylindrical structure; the powder mixing tank is arranged in an inclined manner, and the material cavity of the powder mixing tank is arranged in an inclined manner.
Furthermore, the outer side surface of the powder mixing tank forms an included angle a of 45 degrees with the horizontal line.
Further, the powder outlet control mechanism comprises a linear air cylinder, a third air source and a fourth air source, and the linear air cylinder is arranged at the discharge port of the powder mixing tank; when the third air source is ventilated and the fourth air source is closed, the linear air cylinder is in an extending state, and the discharge hole of the powder mixing tank is in a closed state; when the third air source is closed and the fourth air source is ventilated, the linear air cylinder is in an extending and contracting state, and the discharge hole of the powder mixing tank is in an opening state.
Furthermore, the powdering device also comprises a control system, and the control system comprises a controller;
the controller is electrically connected with a first sensor on the negative pressure generator and forms an independent closed-loop control circuit so as to independently control the operation of the negative pressure generator;
the controller is electrically connected with the weighing sensors on the weighing tanks and forms an independent closed-loop control circuit so as to independently receive data signals of the weighing sensors;
the controller is electrically connected with a second sensor on the powder falling control mechanism and forms an independent closed-loop control circuit so as to independently control the operation of the powder falling control mechanism;
the controller is electrically connected with a third sensor on the powder mixing tank and forms an independent closed-loop control circuit, so that the operation of the stirring device in the powder mixing tank is independently controlled;
the controller is electrically connected with a fourth sensor on the powder discharging control mechanism and forms an independent closed-loop control circuit, so that the operation of the powder discharging control mechanism is controlled independently.
The scheme provided by the invention can be applied to powder ink-jet bonding printing, can realize accurate weighing in the whole process and closed loop in each link, can stably execute each link under the condition that powder gravel generates static electricity, and cannot be interfered by various external complex conditions.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The invention will be further explained with reference to the drawings, in which:
FIG. 1 is a schematic view of a powdering device for powder ink-jet bonding printing according to the present invention;
FIG. 2 is a schematic diagram of the tilted arrangement of the powder mixing tank according to the present invention.
In the figure: 1. a negative pressure generator; 2. weighing the tank; 3. a pneumatic butterfly valve; 4. a powder mixing tank; 5. a reduction motor; 6. a linear cylinder; 7. a weighing sensor; 8. stirring the scraper; 9. a powder suction port; 10. a horizontal line.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
As shown in fig. 1, the present invention provides a powdering device for powder inkjet bonding printing, which can be applied to powder inkjet bonding printing; specifically, the powder feeding device comprises a negative pressure generator 1, a weighing tank 2, a powder falling control mechanism, a powder mixing tank 4 and a powder discharging control mechanism; a discharge hole of the negative pressure generator 1 is communicated with the weighing tank 2, and a powder suction hole 9 is arranged on the negative pressure generator 1; the negative pressure is generated in the negative pressure generator 1, so that the powder suction port 9 can absorb powder and enter the weighing tank 2; the weighing tank 2 is provided with a weighing sensor 7 so as to calculate the weight of the powder in the weighing tank 2; the feed inlet of the powder falling control mechanism is communicated with the discharge outlet of the weighing tank 2, and the discharge outlet of the powder falling control mechanism is communicated with the feed inlet of the powder mixing tank 4, so that the powder amount of the weighing tank 2 entering the powder mixing tank 4 is controlled; the powder outlet control mechanism is connected with the discharge hole of the powder mixing tank 4 so as to control the discharge of the powder mixing tank 4; the powder feeding device for powder ink-jet bonding printing provided by the invention can accurately calculate the powder supply amount each time and realize accurate weighing in the whole process.
Preferably, in combination with the above solution, as shown in fig. 1, the weighing tank 2 is of a cone structure, and the round bottom surface thereof is located on the upper end surface; further, the negative pressure generator 1 is arranged at the top of the weighing tank 2, so that blanking is facilitated; the three weighing sensors 7 are uniformly arranged at three corners on the side surface of the cone structure, the weight in the powder tank is measured in real time, and the weight change of the weighing tank 2 can be detected, so that analog quantity is given; the weighing sensor 7 can accurately calculate the powder weight in the powder tank.
Preferably, in combination with the above scheme, as shown in fig. 1, a vacuum pump is arranged in the negative pressure generator 1; a positive pressure gas source outside the negative pressure generator 1 generates negative pressure when passing through the vacuum pump, so that powder can be sucked from a powder tank outside the machine to the weighing tank 2 through the powder sucking port 9; the positive pressure air source is used as a power source of the negative pressure generator 1 to be always ventilated, and when the positive pressure vacuum pump is switched on to the switching air source to start working, the positive pressure vacuum pump stops working when the switching air source is switched off; specifically, a large-flow vacuum pump of the physical negative pressure generator is used for providing power for a powdering link and can be opened or closed pneumatically; furthermore, the positive pressure air source and the switch air source are connected with the negative pressure generator 1 through the pneumatic quick connector, so that the assembly and disassembly are convenient.
Preferably, in combination with the above scheme, as shown in fig. 1, the powder falling control mechanism includes a pneumatic butterfly valve 3, a first gas source and a second gas source, the pneumatic butterfly valve 3 is disposed on a pipeline between the discharge port of the weighing tank 2 and the feed port of the powder mixing tank 4; when the first air source is in a ventilation state, the pneumatic butterfly valve 3 is in a normally closed state, and blanking cannot be realized; further, when the first air source is in a closed state and the second air source is in an open state, the pneumatic butterfly valve 3 is in an open state; furthermore, the second air source is used for controlling the opening and closing angle of a valve plate of the pneumatic butterfly valve 3 so as to control the powder falling rate; further, when the weighing sensor 7 detects the weight of the powder to be dropped, the second air source is closed, the first air source is opened, and the powder dropping action is completed; furthermore, the first air source and the second air source are communicated with the pneumatic butterfly valve 3 through the pneumatic quick connector, so that the pneumatic butterfly valve is convenient to disassemble and assemble.
Preferably, in combination with the above solution, as shown in fig. 1, a stirring mechanism is disposed in the powder mixing tank 4, and the stirring mechanism is used for stirring and mixing the powder and the curing agent in the powder mixing tank 4.
Preferably, in combination with the above scheme, as shown in fig. 1, the stirring mechanism includes a stirring scraper 8, and a speed reduction motor 5 is arranged outside the powder mixing tank 4; the transmission shaft of the gear motor 5 extends into the powder mixing tank 4 and is connected with the stirring scraper 8, so that the stirring scraper 8 can be driven to rotate.
Preferably, in combination with the above scheme, as shown in fig. 1, the powder mixing tank 4 is a cylindrical structure; the powder mixing tank 4 is arranged in an inclined manner, and a material cavity of the powder mixing tank 4 is arranged in an inclined manner; specifically, as shown in fig. 2, an included angle a between the outer side surface of the powder mixing tank 4 and the horizontal line 10 is 45 °, and the 45 ° powder mixing tank 4 is obliquely arranged, so that the space between the speed reduction motor and the bin and the angle between the speed reduction motor and the powder discharging can be effectively avoided, and the speed reduction motor can well provide sufficient rotating speed and power for the powder mixing ring.
Preferably, in combination with the above scheme, as shown in fig. 1, the powder discharging control mechanism includes a linear air cylinder 6, a third air source and a fourth air source, the linear air cylinder 6 is disposed at the discharge port of the powder mixing tank 4, and the linear air cylinder 6 is responsible for opening and closing a valve of the powder mixing tank; when the third air source is ventilated and the fourth air source is closed, the linear air cylinder 6 is in an extending state, and the discharge hole of the powder mixing tank 4 is in a closed state; when the third air source is closed and the fourth air source is ventilated, the linear air cylinder 6 is in an extending and contracting state, and the discharge hole of the powder mixing tank 4 is in an opening state.
Preferably, in combination with the above scheme, as shown in fig. 1, the lower end of the tapered weighing tank 2 is provided with a powder outlet connected with a pneumatic butterfly valve 3 which can lock or open the flow of the powder in time, the lower part of the pneumatic butterfly valve 3 is connected with a feed inlet of a powder mixing tank 4, a hole is formed in the lower part of the powder mixing tank 4 so that a transmission shaft of a speed reduction motor can enter, and a stirring mechanism arranged in the powder mixing tank 4 can rotate and stir along with the speed reduction motor for mixing the powder and the curing agent; the linear cylinder 6 at the outer side of the powder mixing tank 4 is responsible for opening and closing a valve at a discharge port of the powder mixing tank 4 and controlling powder discharge of powder.
Preferably, in combination with the above scheme, as shown in fig. 1, the powdering device further includes a control system, and the control system includes a controller; the specific control logic is as follows:
the controller is electrically connected with the first sensor on the negative pressure generator 1 and forms an independent closed-loop control circuit, so that the operation of the negative pressure generator 1 is controlled independently; specifically, the first sensor is a capacitive sensor;
the controller is electrically connected with the weighing sensor 7 on the weighing tank 2 and forms an independent closed-loop control circuit so as to independently receive the data signal of the weighing sensor 7; specifically, the weighing sensor 7 is a capacitance sensor;
the controller is electrically connected with a second sensor on the powder falling control mechanism and forms an independent closed-loop control circuit so as to independently control the operation of the powder falling control mechanism; specifically, the second sensor is a capacitive sensor;
the controller is electrically connected with the third sensor on the powder mixing tank 4 and forms an independent closed-loop control circuit, so that the operation of the stirring device in the powder mixing tank 4 is independently controlled; specifically, the third sensor is a capacitive sensor;
the controller is electrically connected with a fourth sensor on the powder discharging control mechanism and forms an independent closed-loop control circuit so as to independently control the operation of the powder discharging control mechanism; specifically, the fourth sensor is a capacitive sensor;
by adopting the scheme, the capacitance sensor can ensure the physical state position, each control link realizes closed-loop control, each link can be stably executed under the condition that powder gravel generates static electricity, and the interference of various external complex conditions can be avoided.
The invention provides a powdering device for powder ink-jet bonding printing, which can be applied to powder ink-jet bonding printing, can realize accurate weighing in the whole process, realize closed loop in each link, stably execute each link under the condition that powder gravel generates static electricity, and cannot be interfered by various external complex conditions.
Correspondingly, the invention also provides powder ink-jet bonding printing, which comprises a powder feeding device, wherein the powder feeding device is the powder feeding device for the powder ink-jet bonding printing, and the whole-process accurate weighing can be effectively realized in the printing and feeding process.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.
Claims (10)
1. The powder feeding device for powder ink-jet bonding printing is characterized by comprising a negative pressure generator (1), a weighing tank (2), a powder falling control mechanism, a powder mixing tank (4) and a powder discharging control mechanism; a discharge hole of the negative pressure generator (1) is communicated with the weighing tank (2), and a powder suction port (9) is formed in the negative pressure generator (1); the negative pressure is generated in the negative pressure generator (1), so that the powder suction port (9) can absorb powder and enter the weighing tank (2); a weighing sensor (7) is arranged on the weighing tank (2) so as to calculate the weight of the powder in the weighing tank (2); the feed inlet of the powder falling control mechanism is communicated with the discharge outlet of the weighing tank (2), and the discharge outlet of the powder falling control mechanism is communicated with the feed inlet of the powder mixing tank (4), so that the powder amount of the powder entering the powder mixing tank (4) from the weighing tank (2) is controlled; the powder discharging control mechanism is connected with a discharging hole of the powder mixing tank (4) so as to control discharging of the powder mixing tank (4).
2. Powdering device for powder inkjet bonding printing according to claim 1, characterized in that the weighing tank (2) is of pyramidal structure with its rounded bottom surface at the upper end surface; the negative pressure generator (1) is arranged at the top of the weighing tank (2); the three weighing sensors (7) are uniformly arranged on the side face of the cone structure and can detect the weight change of the weighing tank (2), so that analog quantity is given.
3. Powdering device for powder inkjet bonding printing according to claim 1, characterized in that a vacuum pump is provided in the negative pressure generator (1); and a positive pressure gas source outside the negative pressure generator (1) generates negative pressure through the vacuum pump, so that powder can be sucked from a powder tank outside the machine to the weighing tank (2) through the powder suction port (9).
4. The powdering device for powder inkjet bond printing according to claim 1, wherein the powder drop control mechanism comprises a pneumatic butterfly valve (3), a first air source and a second air source, the pneumatic butterfly valve (3) is arranged on a pipeline between the discharge port of the weighing tank (2) and the feed port of the powder mixing tank (4); when the first air source is in a ventilation state, the pneumatic butterfly valve (3) is in a normally closed state; when the first air source is in a closed state and the second air source is in an open state, the pneumatic butterfly valve (3) is in an open state; the second air source is also used for controlling the opening and closing angle of a valve plate of the pneumatic butterfly valve (3).
5. The powder feeding device for powder inkjet bonding printing according to claim 1, wherein a stirring mechanism is arranged in the powder mixing tank (4), and the stirring mechanism is used for stirring and mixing the powder and the curing agent in the powder mixing tank (4).
6. A powdering device for powder inkjet bond printing according to claim 5, characterized in that the stirring mechanism comprises a stirring blade (8), and a gear motor (5) is provided outside the powder mixing tank (4); the transmission shaft of the speed reducing motor (5) extends into the powder mixing tank (4) and is connected with the stirring scraper (8), so that the stirring scraper (8) can be driven to rotate.
7. Powder application apparatus for powder inkjet bonding printing according to claim 1, characterized in that the powder mixing tank (4) is of a cylindrical structure; the powder mixing tank (4) is arranged in an inclined manner, and a material cavity of the powder mixing tank (4) is arranged in an inclined manner.
8. Powdering device for powder inkjet bond printing according to claim 7, characterized in that the angle a of the outer side of the powder mixing tank (4) to the horizontal (10) is 45 °.
9. The powdering device for powder inkjet bond printing according to claim 1, wherein the powder discharge control mechanism comprises a linear cylinder (6), a third air source and a fourth air source, the linear cylinder (6) being disposed at the discharge port of the powder mixing tank (4); when the third air source is ventilated and the fourth air source is closed, the linear air cylinder (6) is in an extending state, and the discharge hole of the powder mixing tank (4) is in a closed state; when the third air source is closed and the fourth air source is ventilated, the linear air cylinder (6) is in an extending and contracting state, and the discharge hole of the powder mixing tank (4) is in an opening state.
10. A powdering device for powder inkjet bonding printing according to any of claims 1-9, further comprising a control system, said control system comprising a controller;
the controller is electrically connected with a first sensor on the negative pressure generator (1) and forms an independent closed-loop control circuit so as to independently control the operation of the negative pressure generator (1);
the controller is electrically connected with a weighing sensor (7) on the weighing tank (2) and forms a single closed-loop control circuit so as to separately receive a data signal of the weighing sensor (7);
the controller is electrically connected with a second sensor on the powder falling control mechanism and forms an independent closed-loop control circuit, so that the operation of the powder falling control mechanism is independently controlled;
the controller is electrically connected with a third sensor on the powder mixing tank (4) and forms an independent closed-loop control circuit, so that the operation of the stirring device in the powder mixing tank (4) is independently controlled;
the controller is electrically connected with a fourth sensor on the powder discharging control mechanism and forms an independent closed-loop control circuit, so that the operation of the powder discharging control mechanism is controlled independently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210632014.XA CN114851552A (en) | 2022-06-07 | 2022-06-07 | Powder feeding device for powder ink-jet bonding printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210632014.XA CN114851552A (en) | 2022-06-07 | 2022-06-07 | Powder feeding device for powder ink-jet bonding printing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114851552A true CN114851552A (en) | 2022-08-05 |
Family
ID=82625016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210632014.XA Pending CN114851552A (en) | 2022-06-07 | 2022-06-07 | Powder feeding device for powder ink-jet bonding printing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114851552A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978573A (en) * | 2014-05-30 | 2014-08-13 | 昆山恩源塑料科技有限公司 | Equipment for mixing plastic granules |
| CN105881905A (en) * | 2016-04-28 | 2016-08-24 | 苏州艾泰普机械有限公司 | Automatic conveying device for 3D printer powder material |
| CN107953562A (en) * | 2017-12-21 | 2018-04-24 | 广州市爱司凯科技股份有限公司 | Blanking drawing mechanism based on 3D printer |
| CN210880916U (en) * | 2019-09-02 | 2020-06-30 | 湖南华曙高科技有限责任公司 | Powder feeding device and 3D printing apparatus |
| CN216458370U (en) * | 2021-11-29 | 2022-05-10 | 江门市皇宙实业有限公司 | Powder mixer |
-
2022
- 2022-06-07 CN CN202210632014.XA patent/CN114851552A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978573A (en) * | 2014-05-30 | 2014-08-13 | 昆山恩源塑料科技有限公司 | Equipment for mixing plastic granules |
| CN105881905A (en) * | 2016-04-28 | 2016-08-24 | 苏州艾泰普机械有限公司 | Automatic conveying device for 3D printer powder material |
| CN107953562A (en) * | 2017-12-21 | 2018-04-24 | 广州市爱司凯科技股份有限公司 | Blanking drawing mechanism based on 3D printer |
| CN210880916U (en) * | 2019-09-02 | 2020-06-30 | 湖南华曙高科技有限责任公司 | Powder feeding device and 3D printing apparatus |
| CN216458370U (en) * | 2021-11-29 | 2022-05-10 | 江门市皇宙实业有限公司 | Powder mixer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0695583B1 (en) | Powder paint supply device | |
| US8302821B2 (en) | Paste application device | |
| US7591709B2 (en) | Blasting device | |
| KR100738948B1 (en) | Apparatus for refilling toner | |
| CN206140903U (en) | 3D (Three dimensional) printer with residual material alarm device | |
| US8438988B2 (en) | Powdering device for powdering printed sheet | |
| CN213383457U (en) | Printing plate making structure capable of preventing ink from blocking | |
| CN114851552A (en) | Powder feeding device for powder ink-jet bonding printing | |
| US5713285A (en) | Powder spray systems and methods for their use | |
| CN102505835B (en) | Dry-mixed mortar pneumatic-conveying stirring and spraying device | |
| CN102357928B (en) | Dry mixed mortar stirring coating machine | |
| JP2016023001A (en) | Cargo handling amount control device for pneumatic unloader | |
| CN109772621A (en) | A kind of multi-purpose spray robot of house ornamentation | |
| CN209791314U (en) | Powder-liquid mixing equipment | |
| CN106110985B (en) | A kind of stirring means of brake block premix agitating device | |
| JP2008289983A (en) | Ink jet device | |
| KR200415237Y1 (en) | Apparatus for refilling toner | |
| CN106182781A (en) | A kind of plastic pellet laser chooses melting unit | |
| CN214188494U (en) | Shower nozzle feed arrangement that 3D printed material used | |
| JP6719847B2 (en) | How to use the ink supply system | |
| CN215850345U (en) | High-precision ink-jet printing device for ceramic glaze surface | |
| CN219400879U (en) | Adhesive tape coating machine | |
| JP2007098449A (en) | Powder compacting machine | |
| CN210706069U (en) | Uninterrupted working 3D printing machine with material quantity control function | |
| JP2016023002A (en) | Cargo handling amount control device for pneumatic unloader |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |