Consumable color mixing device for 3d printing

Abstract

The invention discloses a consumable color mixing device for 3d printing, and relates to the technical field of 3D printing, the consumable color mixing device comprises a shell and a supporting frame fixedly mounted on the outer surface of the shell, a feeding part is mounted at the top of the feeding end of the shell, a heating part is fixedly mounted in the middle of the outer surface of the shell, a conveying mechanism is mounted at the discharging end of the shell, and the supporting frame is fixedly mounted on the outer surface of the shell. The discharging end of the conveying mechanism is connected with a color mixing mechanism, the end of the color mixing mechanism is connected with an extrusion mechanism, and the extrusion mechanism is arranged in the shell. According to the consumable color mixing device for 3d printing, materials in the shell are heated through the heating piece, so that the materials reach the proper processing temperature, after the materials enter the shell through the feeding piece, the materials are fully stirred and mixed in the color mixing mechanism through left-hand threads and right-hand threads of the variable spiral blade and the spiral conveying blade, and color mixing of consumables is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of 3D printing, in particular to a consumable color mixing device for 3D printing. Background Art

[0002] In the 3D printing process, consumables are one of the key factors affecting printing quality and effect. In addition to strict requirements on the physical and mechanical properties of consumables, the demand for color is also increasing. For example, in the fields of creative home accessories and toys, consumers have a higher pursuit of the richness and uniqueness of product colors. In industrial design, consumables of different colors are used to distinguish different functional components, which helps with product assembly, maintenance and management. However, there are many problems with the common 3D printing consumables color mixing technology on the market.

[0003] The stirring components of traditional color mixing devices are relatively simple in design, and usually rely on a single stirring paddle or stirring rod for stirring. This method cannot fully disrupt the distribution of the materials and it is difficult to achieve uniform mixing of the material colors. Due to the limited movement trajectory and range of action of the stirring components, the materials are prone to partial insufficient mixing during the color mixing process, resulting in obvious defects such as uneven color and color spots in the printed products, which seriously affects the appearance quality of the product. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A 3D printing consumables color mixing device, comprising:

[0005] A shell, and a support frame fixedly mounted on the outer surface of the shell, a feeding piece is mounted on the top of the feeding end of the shell, a heating piece is fixedly mounted in the middle of the outer surface of the shell, the heating piece heats the material in the shell to make the material reach a suitable processing temperature, which is helpful for subsequent color mixing operations, and a bearing is fixedly mounted in the middle of the discharging end of the shell;

[0006] A conveying mechanism, which is installed at the discharge end of the shell, and performs preliminary mixing of the materials and transports them to the color mixing area;

[0007] A color mixing mechanism, which is connected to the discharge end of the conveying mechanism and is arranged inside the shell. The color mixing mechanism is used to fully stir the material to make the color of the material more uniform;

[0008] An extrusion mechanism, the extrusion mechanism is connected to the end of the color mixing mechanism, the extrusion mechanism is arranged inside the housing, the extrusion mechanism is rotatably mounted on the inner side of the bearing, and the extrusion mechanism is convenient for subsequent material discharge;

[0009] A discharging mechanism, which is installed at the bottom of the discharging end of the shell and is used to control the discharging of materials;

[0010] Among them, the color mixing mechanism includes a second transmission shaft, both ends of the second transmission shaft are fixedly installed with blocks, the blocks realize the connection and power transmission between the components, a connecting rod and a rotating shaft are fixedly installed on the surface of the second transmission shaft, the connecting rod and the rotating shaft are staggered, and a scraper is fixedly installed on the end of the connecting rod away from the second transmission shaft, the scraper scrapes off the material attached to the inner wall of the shell to prevent material residue and accumulation, and ensure the color mixing effect, the rotating shafts are grouped into three, and a group of rotating shafts are arranged on the same plane, and a rotating rod is rotatably installed on the outer surface of the rotating shaft, and the material is stirred and mixed when the rotating rod rotates, so that the color of the material is more uniform.

[0011] Preferably, a spoiler groove is provided on the surface of the rotating rod, which disrupts the flow direction of the material, so that the material is mixed evenly, and the color mixing effect is further improved. A connecting rope is fixedly connected between a group of rotating rods. The connecting rope is arranged at one end of the rotating rod away from the rotating shaft. The connecting rope serves to stabilize the rotating rod. The connecting rope is elastic, buffers and limits the rotating rod, and prevents the rotating rod from excessive rotation, thereby affecting the color mixing effect.

[0012] Preferably, the feed part includes a feed hopper, which is fixedly installed on the top of the shell and is used to receive the material to be processed. A sealing cover is installed on the top of the feed hopper through a rotating shaft. The sealing cover prevents material leakage and external debris from entering the shell, and a handle is fixedly installed on the surface of the sealing cover.

[0013] Preferably, the heating element includes a protective shell, which is fixedly mounted on the outer surface of the shell. A heating tube is provided inside the protective shell, and the heating tube is sleeved on the outer surface of the shell. The protective shell protects the internal heating tube to prevent the heating tube from being hit or damaged by the outside. The heating tube heats the material in the shell to make the material reach a suitable melting temperature, which is helpful for subsequent operations such as conveying, color mixing and extrusion.

[0014] Preferably, the conveying mechanism includes a motor, which is fixedly mounted on the outer surface of the shell through a bracket, and the output end of the motor is fixedly connected to a first transmission shaft, which passes through the shell and extends into the interior thereof, and a spiral conveying blade is fixedly mounted on the outer surface of the first transmission shaft, and when the spiral conveying blade rotates, the material is conveyed from the feed end to the discharge end, thereby realizing the movement of the material within the device.

[0015] Preferably, a material guide groove is provided on the surface of the spiral conveying blade, which guides the flow of materials so that the materials can be conveyed more smoothly and reduces the accumulation and blockage of materials during the conveying process. A first card slot is provided at the end of the first transmission shaft away from the motor, and the first card slot is engaged and adapted with the card block to realize the connection between the first transmission shaft and the second transmission shaft.

[0016] Preferably, the extrusion mechanism includes a third transmission shaft, the end of the third transmission shaft is rotatably mounted on the inner side of the bearing, a second slot is provided at the end of the third transmission shaft away from the bearing, the second slot is engaged and adapted with a block to connect the third transmission shaft with the second transmission shaft, and a variable spiral blade is fixedly mounted on the outer surface of the third transmission shaft to extrude the material when rotating so that the material can be discharged smoothly.

[0017] Preferably, the pitch of the variable spiral blade gradually decreases toward the discharge end, the variable spiral blade is opposite to the spiral direction of the spiral conveying blade, and the variable spiral blade is a left-handed thread. When the spiral conveying blade rotates clockwise, the material is transported to the color mixing mechanism. At this time, the variable spiral blade transports the material to the feed end, and the material does not reach the extrusion mechanism. When the spiral conveying blade rotates counterclockwise, the variable spiral blade transports the material to the discharge end, so that the material is discharged smoothly. The variable spiral blade is fixedly installed with a convex strip on the surface close to the discharge end, and the convex strip increases the friction on the material, further improving the extrusion effect.

[0018] Preferably, the discharging mechanism includes a discharging pipe, which is fixedly installed at the bottom of the shell, and a valve body is detachably installed at the bottom of the discharging pipe, a shaft sleeve is fixedly installed at the inner wall of the valve body, a rotating shaft is rotatably installed inside the shaft sleeve, the rotating shaft passes through the valve body and extends to its outside, a hand wheel is fixedly connected to the end of the rotating shaft, a valve disc is fixedly installed on the outer surface of the rotating shaft, and a sealing ring is fixedly installed on the inner wall of the valve body, the sealing ring is sealingly adapted to the valve disc, and the valve disc can cooperate with the sealing ring when rotating to achieve sealing or opening of the discharging channel and control the discharging of materials.

[0019] Preferably, a buffer spring is fixedly connected to the surface of the valve flap, and the other end of the buffer spring is fixedly connected to the inner wall of the valve body. The buffer spring is arranged below the sealing ring. The buffer spring plays a buffering role when the valve flap is closed, reducing the impact of the valve flap on the inner wall of the valve body when the valve flap is closed and opened, and at the same time assisting the valve flap to better seal.

[0020] The present invention provides a color mixing device for consumables for 3D printing, which has the following beneficial effects:

[0021] 1. The 3D printing consumables color mixing device, through the setting of the material feeding part, the operator holds the handle to turn the sealing cover, opens the hopper, pours the material to be processed into the hopper, and then turns the sealing cover again to close it. It effectively prevents the material from leaking from the hopper when the equipment is running, and prevents foreign debris from mixing into the material in the shell, ensuring the purity of the material, and providing a good raw material basis for subsequent color mixing, extrusion and other operations.

[0022] Second, the 3D printing consumables color mixing device, through the setting of the conveying mechanism, the motor is started, driving the first transmission shaft to rotate, and the spiral conveying blades on the outer surface of the first transmission shaft rotate accordingly, and the material guide groove on the surface of the spiral conveying blade guides the material to move from the feeding end to the discharging end, and the first transmission shaft is connected with the clamping block of the second transmission shaft of the color mixing mechanism through the first clamping groove, driving the color mixing mechanism to work. Stable material transportation in the device is achieved, and the material guide groove reduces the accumulation and blockage of materials during transportation, thereby improving the material transportation efficiency.

[0023] 3. The color mixing device for 3D printing consumables, through the setting of the color mixing mechanism, the second transmission shaft rotates under the drive of the conveying mechanism, the connecting rod and the rotating shaft rotate accordingly, the connecting rod drives the scraper to scrape the material on the inner wall of the shell, the rotating shaft drives the rotating rod to rotate, the spoiler groove on the surface of the rotating rod disturbs the flow direction of the material, and the connecting rope ensures the relative position of the rotating rod is stable. The color mixing mechanism fully stirs and mixes the material, making the color more uniform, improving the quality of 3D printing consumables, and the scraper prevents the material from remaining and accumulating on the inner wall of the shell, ensuring the effect of color mixing and the cleanliness of the equipment.

[0024] Fourth, the 3D printing consumables color mixing device, through the setting of the extrusion mechanism, the second transmission shaft is connected with the second slot of the third transmission shaft through the clamping block, driving the third transmission shaft to rotate, and the variable spiral blade on the outer surface of the third transmission shaft rotates, and its pitch gradually decreases toward the discharge end, so as to squeeze the material, and the convex strips close to the discharge end increase the friction force on the material, so that the material can be discharged smoothly. The spiral direction and pitch change design of the variable spiral blade can control the discharge direction of the material according to needs, thereby enhancing the operability of the device.

[0025] 5. The color mixing device for 3D printing consumables has a discharging mechanism. The operator turns the hand wheel, the hand wheel drives the rotating shaft to rotate, the rotating shaft drives the valve disc to rotate, when the valve disc separates from the sealing ring, the material is discharged through the discharging pipe, when the valve disc fits with the sealing ring, the discharging channel is closed, the buffer spring is compressed when the valve disc is closed, and the buffer spring provides buffering force when it is opened. This realizes precise control of material discharging, and is convenient for operators to control the time and speed of discharging according to production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the appearance of the present invention;

[0028] Figure 3 It is a partial cross-sectional view of the protective shell of the present invention;

[0029] Figure 4 It is a partial cross-sectional view of the housing of the present invention;

[0030] Figure 5 It is a schematic diagram of the internal structure of the housing of the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the conveying mechanism of the present invention;

[0032] Figure 7 This is a schematic diagram of the color mixing mechanism structure of the present invention;

[0033] Figure 8 It is an enlarged schematic diagram of part A of the present invention;

[0034] Fig. 9 It is a schematic diagram of the structure of the extrusion mechanism of the present invention;

[0035] Fig.10 It is a schematic diagram of the structure of the discharging mechanism of the present invention;

[0036] Fig.11 It is a partial cross-sectional view of the discharging mechanism of the present invention.

[0037] In the figure: 1. shell; 2. support frame; 3. feed piece; 31. feed hopper; 32. sealing cover; 33. handle; 4. heating element; 41. protective shell; 42. heating tube; 5. conveying mechanism; 51. motor; 52. first transmission shaft; 53. spiral conveying blade; 54. guide groove; 55. first clamping groove; 6. color mixing mechanism; 61. second transmission shaft; 62. block; 63. connecting rod; 64. scraper; 65. rotating shaft; 66. rotating rod; 67. spoiler groove; 68. connecting rope; 7. extrusion mechanism; 71. third transmission shaft; 72. second clamping groove; 73. variable spiral blade; 74. convex strip; 8. bearing; 9. discharging mechanism; 91. discharging pipe; 92. valve body; 93. hand wheel; 94. rotating shaft; 95. bushing; 96. valve disc; 97. buffer spring; 98. sealing ring. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] The first embodiment, as Figures 1 to 3As shown, the present invention provides a technical solution: a color mixing device for 3D printing consumables, comprising a shell 1, and a support frame 2 fixedly mounted on the outer surface of the shell 1, a feeding piece 3 is mounted on the top of the feeding end of the shell 1, a heating piece 4 is fixedly mounted in the middle of the outer surface of the shell 1, the heating piece 4 heats the material in the shell 1 to make the material reach a suitable processing temperature, which is helpful for subsequent color mixing operations, and a bearing 8 is fixedly mounted in the middle of the discharging end of the shell 1;

[0040] The feeding member 3 includes a feeding hopper 31, which is fixedly mounted on the top of the housing 1. The feeding hopper 31 is used to receive the material to be processed. A sealing cover 32 is rotatably mounted on the top of the feeding hopper 31 through a rotating shaft. The sealing cover 32 prevents material leakage and foreign matter from entering the housing 1. A handle 33 is fixedly mounted on the surface of the sealing cover 32.

[0041] The heating element 4 includes a protective shell 41, which is fixedly mounted on the outer surface of the shell 1. A heating tube 42 is arranged inside the protective shell 41, and the heating tube 42 is sleeved on the outer surface of the shell 1. The protective shell 41 protects the internal heating tube 42 to prevent the heating tube 42 from being hit or damaged by the outside. The heating tube 42 heats the material in the shell 1 to make the material reach a suitable melting temperature, which is helpful for subsequent operations such as conveying, color mixing and extrusion.

[0042] The second embodiment is based on the first embodiment. Figures 1 to 8 As shown, the conveying mechanism 5 is installed at the discharge end of the housing 1, and the conveying mechanism 5 performs preliminary mixing of the materials and transports them to the color mixing area;

[0043] The conveying mechanism 5 includes a motor 51, which is fixedly mounted on the outer surface of the housing 1 through a bracket, and the output end of the motor 51 is fixedly connected to a first transmission shaft 52, which penetrates the housing 1 and extends to the inside thereof, and a spiral conveying blade 53 is fixedly mounted on the outer surface of the first transmission shaft 52, and when the spiral conveying blade 53 rotates, the material is conveyed from the feed end to the discharge end, thereby realizing the movement of the material in the device;

[0044] A material guide groove 54 is provided on the surface of the spiral conveying blade 53, and the material guide groove 54 guides the flow of materials, so that the materials can be conveyed more smoothly, and the accumulation and blockage of materials during the conveying process are reduced. A first clamping groove 55 is provided at one end of the first transmission shaft 52 away from the motor 51, and the first clamping groove 55 is clamped and adapted with the clamping block 62 to realize the connection between the first transmission shaft 52 and the second transmission shaft 61;

[0045] The color mixing mechanism 6 is connected to the discharge end of the conveying mechanism 5 and is arranged inside the housing 1. The color mixing mechanism 6 is used to fully mix the material to make the color of the material more uniform.

[0046] The color mixing mechanism 6 includes a second transmission shaft 61, and blocks 62 are fixedly installed at both ends of the second transmission shaft 61. The blocks 62 realize the connection and power transmission between the components. A connecting rod 63 and a rotating shaft 65 are fixedly installed on the surface of the second transmission shaft 61. The connecting rod 63 and the rotating shaft 65 are staggered. A scraper 64 is fixedly installed at one end of the connecting rod 63 away from the second transmission shaft 61. The scraper 64 scrapes off the material attached to the inner wall of the shell 1 to prevent material residue and accumulation and ensure the color mixing effect. The rotating shafts 65 are grouped into three, and a group of rotating shafts 65 are arranged on the same plane. A rotating rod 66 is rotatably installed on the outer surface of the rotating shaft 65. When the rotating rod 66 rotates, the material is stirred and mixed to make the color of the material more uniform.

[0047] A spoiler groove 67 is provided on the surface of the rotating rod 66. The spoiler groove 67 disrupts the flow direction of the material, so that the material is mixed evenly, and the color mixing effect is further improved. A group of rotating rods 66 are fixedly connected with a connecting rope 68. The connecting rope 68 is arranged at one end of the rotating rod 66 away from the rotating shaft 65. The connecting rope 68 plays a role in stabilizing the rotating rod 66. The connecting rope 68 is elastic, buffers and limits the rotating rod 66, and prevents the rotating rod 66 from excessive rotation, thereby affecting the color mixing effect.

[0048] The third embodiment is based on the first and second embodiments. Figures 1 to 11 As shown, the extrusion mechanism 7 is connected to the end of the color mixing mechanism 6, the extrusion mechanism 7 is arranged inside the housing 1, and the extrusion mechanism 7 is rotatably mounted on the inner side of the bearing 8, and the extrusion mechanism 7 is convenient for subsequent material discharge;

[0049] The extrusion mechanism 7 includes a third transmission shaft 71, the end of which is rotatably mounted on the inner side of the bearing 8, and a second card slot 72 is provided at one end of the third transmission shaft 71 away from the bearing 8, and the second card slot 72 is engaged and adapted with the card block 62 to realize the connection between the third transmission shaft 71 and the second transmission shaft 61, and a variable spiral blade 73 is fixedly mounted on the outer surface of the third transmission shaft 71, which extrude the material when rotating, so that the material can be discharged smoothly;

[0050] The pitch of the variable spiral blade 73 gradually decreases toward the discharge end. The spiral direction of the variable spiral blade 73 is opposite to that of the spiral conveying blade 53. The variable spiral blade 73 is a left-handed thread. When the spiral conveying blade 53 rotates clockwise, the material is transported to the color mixing mechanism 6. At this time, the variable spiral blade 73 transports the material to the feeding end, and the material does not reach the extrusion mechanism 7. When the spiral conveying blade 53 rotates counterclockwise, the variable spiral blade 73 transports the material to the discharge end, so that the material is discharged smoothly. A convex strip 74 is fixedly installed on the surface of the variable spiral blade 73 near the discharge end. The convex strip 74 increases the friction force on the material, further improving the extrusion effect.

[0051] The discharging mechanism 9 is installed at the bottom of the discharging end of the housing 1, and the discharging mechanism 9 is used to control the discharging of the material;

[0052] The discharging mechanism 9 includes a discharging pipe 91, which is fixedly mounted at the bottom of the housing 1. A valve body 92 is detachably mounted at the bottom of the discharging pipe 91. A shaft sleeve 95 is fixedly mounted on the inner wall of the valve body 92. A rotating shaft 94 is rotatably mounted inside the shaft sleeve 95. The rotating shaft 94 penetrates the valve body 92 and extends to the outside thereof. A hand wheel 93 is fixedly connected to the end of the rotating shaft 94. A valve flap 96 is fixedly mounted on the outer surface of the rotating shaft 94. A sealing ring 98 is fixedly mounted on the inner wall of the valve body 92. The sealing ring 98 is sealed and adapted with the valve flap 96. When the valve flap 96 rotates, it can cooperate with the sealing ring 98 to seal or open the discharging channel and control the discharging of the material.

[0053] A buffer spring 97 is fixedly connected to the surface of the valve flap 96, and the other end of the buffer spring 97 is fixedly connected to the inner wall of the valve body 92. The buffer spring 97 is arranged below the sealing ring 98. The buffer spring 97 plays a buffering role when the valve flap 96 is closed, reducing the impact of the valve flap 96 on the inner wall of the valve body 92 when the valve flap 96 is closed and opened, and at the same time assisting the valve flap 96 to seal better.

[0054] When in use, the operator opens the sealing cover 32 through the handle 33, pours the material to be processed into the hopper 31, and the material enters the housing 1 through the hopper 31, and closes the sealing cover 32 to prevent material leakage and external debris from entering;

[0055] The heating tube 42 of the heating element 4 starts to work, heating the housing 1 sleeved therein, so that the material in the housing 1 reaches a suitable processing temperature. The protective shell 41 protects the heating tube 42 to ensure that the heating process is carried out safely and stably.

[0056] The motor 51 is started, and the output end of the motor 51 drives the first transmission shaft 52 to rotate. The spiral conveying blade 53 on the outer surface of the first transmission shaft 52 rotates with the first transmission shaft 52. The spiral conveying blade 53 is a right-handed thread. When the spiral conveying blade 53 rotates clockwise, the material guide groove 54 on the surface of the spiral conveying blade 53 guides the material and transports the material from the feeding end to the discharging end of the shell 1. Since the first transmission shaft 52 is provided with a first card groove 55 at one end away from the motor 51, and is card-engaged with the card blocks 62 at both ends of the second transmission shaft 61 in the color mixing mechanism 6, the first transmission shaft 52 drives the second transmission shaft 61 to rotate while conveying the material.

[0057] When the second transmission shaft 61 rotates, the connecting rod 63 and the rotating shaft 65 fixed on its surface rotate accordingly. The connecting rod 63 drives the scraper 64 to rotate, and the scraper 64 scrapes the material attached to the inner wall of the shell 1 to prevent the material from remaining and accumulating. The rotating shafts 65 are three in a group and are on the same plane. The rotating rods 66 rotatably installed on the outer surface of the rotating shaft 65 also rotate accordingly. The spoiler grooves 67 on the surface of the rotating rods 66 disrupt the flow direction of the material and fully mix the material. The connecting ropes 68 between the rotating rods 66 buffer and limit the rotating rods 66 to prevent the rotating rods 66 from excessively rotating and affecting the mixing effect. The rotating rods 66 fully stir and mix the material to make the color of the material more uniform.

[0058] After the color mixing is completed, the rotation direction of the first transmission shaft 52 is changed to make it rotate counterclockwise. Since the blocks 62 at both ends of the second transmission shaft 61 are engaged and adapted with the second grooves 72 at the end of the third transmission shaft 71 in the extrusion mechanism 7, the third transmission shaft 71 is driven to rotate. The variable spiral blades 73 on the outer surface of the third transmission shaft 71 rotate with the third transmission shaft 71, and the pitch of the variable spiral blades 73 gradually decreases toward the discharge end, thereby squeezing the material to facilitate the discharge of the material. The convex strips 74 on the surface of the variable spiral blades 73 close to the discharge end increase the friction on the material, thereby further improving the mixing effect.

[0059] At this time, the operator turns the hand wheel 93, and the hand wheel 93 drives the rotating shaft 94 to rotate, and the valve flap 96 on the outer surface of the rotating shaft 94 rotates accordingly. When the valve flap 96 rotates to separate from the sealing ring 98, the discharge channel is opened, and the material is discharged through the discharge pipe 91. The buffer spring 97 on the surface of the valve flap 96 plays a buffering role when the valve flap 96 is closed, reducing the impact of the valve flap 96 on the inner wall of the valve body 92 when the valve flap 96 is closed and opened, and at the same time assisting the valve flap 96 to better seal. When it is necessary to stop the discharge, the operator turns the hand wheel 93 in the opposite direction to rotate the valve flap 96 to fit the sealing ring 98, close the discharge channel, and complete the discharge operation.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A color mixing device for 3D printing consumables, characterized in that: include: A shell (1), and a support frame (2) fixedly mounted on the outer surface of the shell (1), a feed piece (3) being mounted on the top of the feed end of the shell (1), a heating piece (4) being fixedly mounted in the middle of the outer surface of the shell (1), and a bearing (8) being fixedly mounted in the middle of the discharge end of the shell (1); A conveying mechanism (5), wherein the conveying mechanism (5) is installed at the discharge end of the housing (1); A color mixing mechanism (6), the color mixing mechanism (6) being connected to the discharge end of the conveying mechanism (5), and the color mixing mechanism (6) being arranged inside the housing (1); An extrusion mechanism (7), the extrusion mechanism (7) is connected to the end of the color mixing mechanism (6), the extrusion mechanism (7) is arranged inside the housing (1), and the extrusion mechanism (7) is rotatably mounted on the inner side of the bearing (8); A discharge mechanism (9), the discharge mechanism (9) being mounted at the bottom of the discharge end of the housing (1); The color mixing mechanism (6) comprises a second transmission shaft (61), blocks (62) are fixedly mounted at both ends of the second transmission shaft (61), a connecting rod (63) and a rotating shaft (65) are fixedly mounted on the surface of the second transmission shaft (61), the connecting rod (63) and the rotating shaft (65) are staggeredly arranged, a scraper (64) is fixedly mounted on one end of the connecting rod (63) away from the second transmission shaft (61), three rotating shafts (65) are grouped together, and a group of rotating shafts (65) are arranged on the same plane, and a rotating rod (66) is rotatably mounted on the outer surface of the rotating shaft (65).

2. A 3D printing consumable color mixing device according to claim 1, characterized in that: A spoiler groove (67) is provided on the surface of the rotating rod (66), and a connecting rope (68) is fixedly connected between a group of the rotating rods (66). The connecting rope (68) is arranged at one end of the rotating rod (66) away from the rotating shaft (65).

3. A 3D printing consumable color mixing device according to claim 1, characterized in that: The feeding member (3) comprises a feeding hopper (31), wherein the feeding hopper (31) is fixedly mounted on the top of the housing (1), a sealing cover (32) is rotatably mounted on the top of the feeding hopper (31) via a rotating shaft, and a handle (33) is fixedly mounted on the surface of the sealing cover (32).

4. A 3D printing consumable color mixing device according to claim 1, characterized in that: The heating element (4) comprises a protective shell (41), the protective shell (41) is fixedly mounted on the outer surface of the shell (1), a heating tube (42) is arranged inside the protective shell (41), and the heating tube (42) is sleeved on the outer surface of the shell (1).

5. A 3D printing consumable color mixing device according to claim 1, characterized in that: The conveying mechanism (5) comprises a motor (51), the motor (51) being fixedly mounted on the outer surface of the housing (1) via a bracket, the output end of the motor (51) being fixedly connected to a first transmission shaft (52), the first transmission shaft (52) penetrating the housing (1) and extending into the interior thereof, and a spiral conveying blade (53) being fixedly mounted on the outer surface of the first transmission shaft (52).

6. A 3D printing consumables color mixing device according to claim 5, characterized in that: A material guide groove (54) is provided on the surface of the spiral conveying blade (53), and a first clamping groove (55) is provided at one end of the first transmission shaft (52) away from the motor (51), and the first clamping groove (55) is clamped and adapted to the clamping block (62).

7. A 3D printing consumable color mixing device according to claim 1, characterized in that: The extrusion mechanism (7) comprises a third transmission shaft (71), the end of the third transmission shaft (71) is rotatably mounted on the inner side of the bearing (8), a second slot (72) is provided at one end of the third transmission shaft (71) away from the bearing (8), the second slot (72) is snap-fitted with the block (62), and a variable spiral blade (73) is fixedly mounted on the outer surface of the third transmission shaft (71).

8. A 3D printing consumables color mixing device according to claim 7, characterized in that: The pitch of the variable spiral blade (73) gradually decreases toward the discharge end, and a convex strip (74) is fixedly mounted on the surface of the variable spiral blade (73) close to the discharge end.

9. A 3D printing consumables color mixing device according to claim 1, characterized in that: The discharging mechanism (9) comprises a discharging pipe (91), wherein the discharging pipe (91) is fixedly mounted on the bottom of the shell (1), a valve body (92) is detachably mounted on the bottom of the discharging pipe (91), a shaft sleeve (95) is fixedly mounted on the inner wall of the valve body (92), a rotating shaft (94) is rotatably mounted inside the shaft sleeve (95), the rotating shaft (94) passes through the valve body (92) and extends to the outside thereof, a hand wheel (93) is fixedly connected to the end of the rotating shaft (94), a valve flap (96) is fixedly mounted on the outer surface of the rotating shaft (94), a sealing ring (98) is fixedly mounted on the inner wall of the valve body (92), and the sealing ring (98) is sealingly adapted to the valve flap (96).

10. A 3D printing consumables color mixing device according to claim 9, characterized in that: A buffer spring (97) is fixedly connected to the surface of the valve flap (96), the other end of the buffer spring (97) is fixedly connected to the inner wall of the valve body (92), and the buffer spring (97) is arranged below the sealing ring (98).

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