KR20140036285A

KR20140036285A - 3d printer cartridge and extruding equipment for (semi-)liquid material

Info

Publication number: KR20140036285A
Application number: KR1020140015725A
Authority: KR
Inventors: 김형진
Original assignee: 김형진
Priority date: 2014-02-11
Filing date: 2014-02-11
Publication date: 2014-03-25
Also published as: KR20150094461A

Abstract

The present invention relates to a cartridge and an extruder for injection of a (semi-) liquid material for a 3D printer. According to the present invention, an extruder (2) equipped with a cartridge (3) is disposed above a frame (1). The position of the extruder (2) is controlled in left and right directions by an X-axial driving motor (4). A working plate (5) includes a Y-axial motor for controlling the position control in a Y axis with respect to the extruder (2), so that the position of the working plate (5) is controlled in front and back directions. The position of the working plate (5) is controlled in upper and lower directions by a Z-axial driving motor disposed below the frame (1). A printout is placed on the working plate (5). A portion of the top end of the cartridge (3) is filled with gas layers, and a lower portion of the portion is filled with a (semi-) liquid material. The extruder (2) sequentially extrudes starting from the gas layers filling the cartridge (3) to the (semi-) liquid material. At the time of ending the extrusion, the terminal end of the cartridge (3) and nozzles pass through the gas layers, so that residues do not remain in the cartridge (3), thereby eliminating troublesome for removing food residues. Meanwhile, a binding part or a sealing tap is provided at the top end of the cartridge (3), thereby maintaining the sealed state during the distribution procedure of food materials.

Description

3D Printer Cartridge and Extruding Equipment for (Semi-) Liquid Material}

The present invention relates to a cartridge and an extrusion apparatus for a 3D printer (semi) liquid material, and more particularly, to a cartridge and an extrusion apparatus for (semi) liquid material injection of a 3D printer for molding food in three dimensions.

3D printers have evolved rapidly over the years, based on open source (RepRap, etc.). In just a year or two, 3D printers have been developed for desktop use in Korea, and they are becoming more widely available through Internet shopping malls.

On January 29, 2014, the Institute for Overseas Economic Research predicted that "3D printing will advance the era of customized small quantity batch production, and differentiated products and companies will emerge from the mass production-oriented manufacturing structure, and the number of single companies will increase." "In the early stages, it was predicted that the manufacturing process would be replaced, but it is expected that specialized fields such as artificial organs, ultra-precision processing, and personal DIY will be newly established due to limitations in materials, manufacturing cost, and time." This could lead to a restructuring of the global manufacturing competitiveness, such as the U-turn to developed countries such as the US, where R & D has been developed. ”

As 3D printer technology develops and becomes more common, the industry that benefits the most is viewed as the food industry. In the food industry, it is easy to process various food materials into powder or (semi) liquid form, which makes it convenient to supply food materials for 3D printers for food. Ingredients processed in powder and (semi) liquid phases significantly reduce storage and logistics costs, and have the advantages of fast rotation of consumption, which is a characteristic of food, and convenience for food hygiene management, which is advantageous for growing the 3D printer market compared to other industries. It is a manufacturing industry.

Printing method of general 3D printer is classified into FDM method (Fused Deposition Modeling), DLP method (Digital Light Processing), SLA method (Stereolithography Apparatus) and SLS method (Selective Laser Sintering). In addition, various materials such as ceramics, plastics, metals, resins, and the like are being used, and with the development of the 3D printing material industry, a variety of materials including foodstuffs is becoming more and more diverse.

The food production 3D printer sends a command to each motor in charge of the XYZ axis and injection by analyzing the G-Code, and the mechanism part including the motor drive part and circuit, the G-Code generating part in 3D modeling. Driving command unit, a food extruding apparatus for extruding the food according to the command, a food cartridge for storing the food material, a nozzle unit for determining the thickness of the food material to be extruded, a bed for mounting the output and an optional bed heating unit, etc. It consists of.

The food forming method of the food-producing 3D printer is a laminated type (FDM) that forms a shape by forming a target object in a two-dimensional planar shape in three dimensions. It is classified by thermal extrusion method.

The heat extrusion method includes a nozzle heating unit for heating heat to a food material to a nozzle part by heating a thermoplastic food material represented by chocolate and sugar and extruding molten food, or a cartridge for heating a food cartridge. It includes a heating unit.

The non-heating extrusion method is suitable for pre-processed (semi) liquid ingredients.In general, a cylindrical cartridge developed by applying a syringe is filled with (semi) liquid ingredients, and the piston is pushed to extrude the ingredients through the nozzle. By forming a two-dimensional planar shape by stacking them sequentially to form food in three dimensions.

However, currently developed non-heat extruded cartridges for 3D printers for foods have a residual amount of material remaining at the bottom end of the cartridge including the nozzle part after each use, so that the cartridges are cleaned and disinfected for food hygiene management. There are inconveniences in food hygiene management, such as the need to implement. In addition, in order to fill the food material, there is a process of transferring the food material to the cartridge from a separate food storage container, and the possibility of food contamination due to exposure to air generated in this process and the large storage container in the first opened state. The food hygiene management, which is a key management item in the food industry, may occur such as controlling the expiration date of food ingredients remaining in the food waste, sanitary control of food cartridges exposed to air, and disposal of residues after output in the cartridge.

The present invention has been proposed in view of the problems of the conventional non-heat extrusion cartridge as described above, the present invention is filled with a gas layer on the upper portion of the cartridge, while the (semi) liquid material at the bottom When the extrusion is carried out by the extrusion device, the gas layer of the upper portion is preferentially extruded, while the gas layer to be extruded can extrude the (semi) liquid material of the lower portion thereof sequentially. It is to provide a cartridge and extrusion device for a new type of 3D printer (semi-liquid) liquid material with excellent convenience of food hygiene management and storage by providing a cartridge that does not leave residue at the bottom of the cartridge and the nozzle.

In addition, the present invention is to provide a general 3D printer (half) liquid material cartridge and extrusion device that can be molded using non-food (semi) liquid material other than food material within the range that does not affect the laminated molding. It is.

According to one feature of the invention, it is provided with an extrusion device 2 equipped with a cartridge 3, the extrusion device 2 is arranged on the upper part of the frame 1 and left and right by the X-axis drive motor (4) The Y-axis drive motor, which is positioned in the lower part of the frame 1, is positioned in the lower part of the frame 1 and is positioned in the lower direction. Positioned up and down by (6) and includes a worktable (5) for seating the output, used in the 3D printer characterized in that the material filled in the cartridge (3) is injected by the extrusion device (2) Provided is a (semi) liquid material cartridge 3 which is convenient for food hygiene management.

According to another feature of the invention, the cartridge 3 of the extruder 2 is filled with gas (3a2, 3b2, 3c2) in a portion of the upper end of the cartridge 3, the (half) liquid material (3a3) , 3b3, 3c3, and the extrusion apparatus 2 preferentially extrudes the gas (3a2, 3b2, 3c2) layer on the top of the cartridge (3), so that the gas (3a2, 3b2, 3c2) layer is a cartridge. (3) The (semi) liquid materials (3a3, 3b3, 3c3) at the lower end are sequentially extruded, and the end of the extrusion (3a5, 3b5, 3c5) and the base (3a2, A cartridge (3) for convenient and convenient food hygiene management for a 3D printer, characterized in that no residues (3a4, 3b4, 3c4) are left in the cartridge (3) by passing the 3b2, 3c2) layer. Is provided.

According to another feature of the invention, the cartridge (3) is provided with a bonding portion (3a1) or sealing tabs (3b1, 3c1) at the top, to maintain a closed state during the distribution process, thereby improving food contamination and corruption problems In this regard, there is provided a (semi) liquid material cartridge 3 for convenient food hygiene management, which is used for a 3D printer, characterized by convenient distribution management and food hygiene management.

According to another feature of the invention, the shape of the cartridge 3 is provided in the tubular (3a) or cylindrical (3b, 3c) characterized in that the easy (half) liquid food hygiene management used for 3D printers A material cartridge 3 is provided.

According to another feature of the invention, the cartridge 3 is a form capable of various substitutions, modifications, and changes within the scope not departing from the technical spirit of the present invention other than the tubular (3a) or cylindrical (3b, 3c) Provided is a (semi) liquid material cartridge 3 that is easy to manage food hygiene for use in a 3D printer that can be manufactured with.

According to another feature of the invention, the extrusion device 2 for extruding the material filled in the cartridge 3 is a roller method (2a), a piston method (2b), a pneumatic method (2c) and the technical idea of the present invention There is provided an extrusion apparatus 2 in the form of various substitutions, modifications, and changes without departing from the scope thereof.

According to the invention, the cartridge (3) is filled with a gas (3a2, 3b2, 3c2) in the upper portion, the (half) liquid material in the lower portion, the extrusion device (2) is the cartridge (3) The upper part of the gas (3a2, 3b2, 3c2) is preferentially extruded, and the gas (3a2, 3b2, 3c2) layer sequentially (semi) liquid material (3a3, 3b3, 3c3) at the bottom of the cartridge (3) When the extrusion is finished, the gas (3a2, 3b2, 3c2) layer passes through the end portion of the lower end of the cartridge 3 and the nozzle (3a5, 3b5, 3c5) to leave no residue in the cartridge (3), Discomfort for removing food material residues 3a4, 3b4, 3c4 after use is eliminated, and a junction part 3a1 or a sealing tab 3b1, 3c1 is provided at the top of the cartridge 3 to maintain a closed state even during distribution. It can maintain food pollution and corruption problems and improve convenience of distribution management and food hygiene management.

Further, according to the present invention, a gas (3a2, 3b2, 3c2) layer is filled in the upper part of the cartridge 3 within the range that does not affect the lamination, and the non-food (half) other than the food material at the lower part thereof. Filled with a liquid material, it can be applied as a general (semi) liquid material cartridge other than the food material so that the residue (3a4, 3b4, 3c4) does not remain in the cartridge 3 after the end of extrusion.

1 is a mounting view according to an embodiment of the present invention
Figure 2 is a block diagram of a tubular cartridge and roller type extrusion apparatus according to an embodiment of the present invention
Figure 3 is a block diagram of a cylindrical cartridge and piston type extrusion apparatus according to an embodiment of the present invention
4 is a block diagram of a cylindrical cartridge and a pneumatic extrusion apparatus according to an embodiment of the present invention

Hereinafter, exemplary embodiments will be described with reference to the accompanying drawings. 1 is a mounting view of an apparatus according to an embodiment of the present invention. According to a preferred embodiment of the present invention, as shown, an extrusion apparatus 2 having a cartridge 3 embedded therein is mounted on the upper portion of the frame 1, and the extrusion apparatus 2 is disposed at the top to drive the X axis. Positioned in the left and right direction by the motor (4), equipped with a Y-axis motor that adjusts the position on the Y-axis relative to the extruder (2) is adjusted to the front and rear, while the lower portion of the frame (1) The worktable 5 is positioned up and down by the Z-axis driving motor 6 disposed and seats the output, and the material filled in the cartridge 3 by the extrusion device 2 is a worktable 5. Stacked on the top). The shape and manner of the position adjusting device in the X, Y, Z axis can be changed in various ways.

2 is a block diagram of a tubular cartridge (3a) and a roller type extrusion apparatus (2a) according to an embodiment of the present invention. According to a preferred embodiment of the present invention as shown, the roller type extrusion device (2a) is an extrusion motor (2a1) and worm shaft (2a2), two worm gear (2a3), support rod (2a4), two rollers 2a5, the roller joiner 2a6, and the apparatus base 2a7. In addition, the tubular cartridge (3a) is made of a flexible material, and comprises a joining portion (3a1) and a nozzle (3a5) for sealing the cartridge (3a), filling the gas layer (3a2) in a portion of the top After filling the (semi) liquid material 3a3 at the lower end, it joins and joins the junction part 3a1, and is provided and sealed. The two worm gears 2a3, which are in contact with both sides of the worm shaft 2a2 by the rotation of the worm shaft 2a2 connected to the shaft of the extrusion motor 2a1, rotate in different directions, and thus the two worm gears 2 Two rollers 2a5 respectively connected to 2a3) rotate in opposite directions. The two rollers 2a5 are tied to each other by a roller joiner 2a6 at regular intervals, and the roller joiners 2a6 are provided to allow free rotation of the two rollers in a tied state. The two rollers 2a5 preferentially start extruding the gas layer 3a2 filled in the upper portion of the tubular cartridge 3a, and the gas layer 3a2 is the lower (semi) liquid material 3a4. While sequentially extruding the two rollers 2a6 move downward along the supporting rods 2a4 due to the rotation of the worm shaft 2a2 by the extrusion motor 2a1, the (semi) liquid material 3a3 is moved. Will be injected. When the two rollers 2a6 continue to move downward, and reach the lower end of the tubular cartridge 3a, the gas layer 3a2 passes through the nozzle 3a5 and is placed in the tubular cartridge 3a. No residue 3a4 of is left.

3 is a block diagram of a cylindrical cartridge 3b and a piston type extrusion device 2b according to an embodiment of the present invention. According to a preferred embodiment of the present invention as shown, the piston type extrusion device (2b) is an extrusion motor (2b1) and screw shaft (2b2), nut and piston holder (2b3), piston (2b5) and the device base It comprises a (2b4). In addition, the piston cartridge 3b is made of a non-flexible material, and includes a sealing tab 3b1 and a nozzle 3a5 for sealing the cartridge 3b. It is provided by filling the (half) liquid material (3b3) at the bottom and sealing with a sealing tab (3b1). The nut is rotated by the rotation of the screw shaft (2b2) connected to the shaft of the extrusion motor (2b1). As the piston holder 2b3 is moved downward, the piston 2b5 connected to the nut and the piston holder 2b3 pushes the sealing tab 3b1 downward, and the gas layer 3b2 filled in the upper part is preferentially. Extrusion is started, and the (semi) liquid material 3b3 located at the bottom thereof is sequentially extruded by the gas layer 3b2 so that the material is injected through the nozzle. When the piston 2b5 continues to move downward and reaches the lower end of the cylindrical cartridge 3b, the gas layer 3b2 passes through the nozzle 3b5 and is placed in the cylindrical cartridge 3b. No residue 3b4 of is left.

4 is a configuration diagram of a cylindrical cartridge 3c and a pneumatic extrusion apparatus 2c according to an embodiment of the present invention. As shown, according to a preferred embodiment of the present invention, the pneumatic extrusion device (2c) is an air pressure pump (2c1) and regulator (2c2) compressed air delivery pipe (2c3), cylinder sealing cap (2c4) and the device It is comprised including the base 2c5. In addition, the piston-type cartridge (3c) is made of a non-flexible material, and comprises a sealing tab (3c1) and a nozzle (3c5) for sealing the cartridge (3c), the gas layer (3c2) on the upper part It is filled, and the lower half of the liquid material 3c3 is filled and sealed with a sealing tab 3c1. The compressed air generated by the air pressure pump 2c1 passes through the regulator 2c2. It is introduced into the cartridge (3c) through the compressed air delivery pipe (2c4) connected to the cartridge (3c) at a constant air pressure. The cartridge 3c is closed by a cylinder sealing cap 2c4 connected to the compressed air delivery pipe 2c3 to maintain the air pressure in the cartridge 3c. As the sealing tab 3c1 is pushed downward by the compressed air introduced through the compressed air delivery pipe 2c3, the gas layer 3c2 filled in the upper portion is first extruded, and the gas layer ( 3c2) (semi) liquid material (3c3) located at the bottom thereof is sequentially extruded so that the material is injected through the nozzle. When the sealing tab 3c1 continues to move downward and reaches the lower end of the cylindrical cartridge 3c, the gas layer 3c2 passes through the nozzle 3c5 to the cylindrical cartridge 3c. No residue 3c4 of the material remains.

In the illustrated embodiment, the material for making the cartridge 3 can also be made of other materials suitable for the use of the present invention. In addition, although the shape of the extrusion apparatus 2 was demonstrated by the roller system 2a, the piston system 2b, the pneumatic system 2c, etc., it can manufacture in the form which can be variously substituted, deformed, and changed.

1: Frame 2: Extruder 3: Cartridge 4: X-axis drive motor 5: Workbench 6: Z-axis drive motor
2a, 2b, 2c: Extrusion apparatus 2a1, 2b1: Extrusion motor 2c1: Air pressure pump
2a2: worm shaft 2a3: worm gear 2a4: support rod 2a5: roller 2a6: roller joiner 2a7: roller type extrusion device base
2b2: Screw shaft 2b3: Nut and piston holder 2b4: Piston type extrusion device base 2b5: Piston
2c2: regulator 2c3: compressed air delivery pipe 2c4: cylinder sealing cap 2c5: pneumatic extruder base
3a: tubular cartridge 3b, 3c: cylindrical cartridge
3a1: bonding part 3b1, 3c1: sealing tab
3a2, 3b2, 3c2: gas layer 3a3, 3b3, 3c3: (semi) liquid material 3a4, 3b4, 3c4: residue
3a5, 3b5, 3c5: nozzle

Claims

An extruder 2 disposed on an upper portion of the frame 1 and positioned in a horizontal direction by an X-axis drive motor 4, and a Y-axis motor that adjusts the position in the Y-axis with respect to the extruder 2; And a work table 5 which is mounted up and down, and is adjusted up and down, and is positioned up and down by a Z-axis driving motor 6 disposed under the frame 1 and seats the output. A cartridge and an extrusion device for a (semi) liquid material, characterized in that the material filled in the cartridge (3) by (2) is laminated on the work table (5).

The method according to claim 1, wherein the upper part of the cartridge 3 is filled with gases 3a2, 3b2, 3c2, and the lower part thereof is filled with (half) liquid materials 3a3, 3b3, 3c3. Liquid material cartridge.

3. The (semi) liquid material cartridge according to claim 2, further comprising a joining portion (3a1) which is capable of maintaining a closed state at the top of the cartridge (3).

3. The (half) liquid material of claim 2, further comprising sealing tabs 3b1 and 3c1 for maintaining a sealed state at the top of the cartridge 3. cartridge.

The method of claim 2, wherein the cartridge 3 is in a form that can be variously substituted, modified, and changed within the scope not departing from the technical idea of the present invention other than the tubular 3a or the cylindrical 3b, 3c. (Semi) liquid material cartridge, characterized in that provided.

The extrusion apparatus 2a according to claim 1, wherein the extrusion apparatus 2a comprises an extrusion motor 2a1 and a worm shaft 2a2, two worm gears 2a3, a support rod 2a4, two rollers 2a5, a roller joiner 2a6 and an apparatus. Two worm gears 2a3 having a base 2a7 and contacting both sides of the worm shaft 2a2 by rotation of the worm shaft 2a2 connected to the shaft of the extrusion motor 2a1 rotate in different directions. Accordingly, the two worm gears 2a3 and the two rollers 2a5 respectively connected to each other rotate in the opposite directions, and the two rollers 2a5 are each rotated by the roller joiners 2a6 in a state in which free rotation is possible. Tied at regular intervals, the two rollers 2a6 move downward along the support bar 2a4 due to the rotation of the worm shaft 2a2 by the extrusion motor 2a1, and the upper portion of the cartridge 3a. Continuously moving the gas layer 3b2 filled in the An extrusion apparatus of a roller method (2a) characterized in that.

The extrusion apparatus 2b is provided with an extrusion motor 2b1, a screw shaft 2b2, a nut and a piston holder 2b3, a piston 2b5 and a device base 2b4. As the nut and piston holder 2b3 are moved downward by the rotation of the screw shaft 2b2 connected to the shaft of the motor 2b1, the piston 2b5 connected to the nut and the piston holder 2b3 is sealed tab 3b1. By moving downward, the extrusion method of the piston system (2b), characterized in that to continuously move the gas layer (3b2) filled in the upper portion continuously downward.

The extruder (2c) is provided with an air pressure pump (2c1), a regulator (2c2), a compressed air delivery pipe (2c3), a cylinder sealing cap (2c4) and the device base (2c5) The compressed air generated by the air pressure pump 2c1 introduces the air pressure introduced through the compressed air delivery pipe 2c4 connected to the cartridge 3c into the cartridge 3c at a constant air pressure passing through the regulator 2c2, The cartridge (3c) is blocked by a cylinder sealing cap (2c4) connected to the compressed air delivery pipe (2c3) to maintain the air pressure in the cartridge (3c), by the compressed air introduced through the compressed air delivery pipe (2c3) Extrusion apparatus of the pneumatic method (2c) characterized in that the sealing tab (3c1) is moved downward, thereby continuously moving the gas layer (3b2) filled in a portion of the upper end downward.