Printer head and printer

Abstract

The utility model relates to the technical field of printer heads of 3D (three-dimensional) printers, in particular to a printer head and a printer, which comprise a material distribution part, a first mixing chamber, a second mixing chamber and a first material distribution part, the first channel is communicated with the first mixing chamber and the first connector, and the second channel is communicated with the first mixing chamber and the second connector. The mixing piece is arranged in a hollow penetrating mode, and the material distributing piece is arranged on the mixing piece; and the nozzle is arranged in a hollow penetrating mode and arranged at the end, away from the distributing piece, of the mixing piece, and a first discharging opening is formed in the side, close to the nozzle, of the distributing piece. According to the printer head and the printer, the convenience degree of butt joint of the printer head with different printing raw materials during 3D printing in the prior art is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of a printer head of a 3D printer, and more specifically, to a printer head and a printer. Background Art

[0002] In the next 10-20 years, digital manufacturing will increasingly change the nature of global manufacturing. One of the aspects of digital manufacturing is 3D printing.

[0003] Currently, many different technologies have been developed to produce various 3D printed objects using various materials such as ceramics, metals and polymers. 3D printing can also be used to produce molds, which can then be used to replicate objects.

[0004] In the manufacture of molds, the most commonly used is multi-jetting technology. This technology uses the layer-by-layer deposition of photopolymerizable materials, which are solidified after each deposition to form a solid structure. The most widely used additive manufacturing technology is called fused deposition modeling. Fused deposition modeling printers use thermoplastic filaments, which are heated to the melting point and then extruded layer by layer to create three-dimensional objects.

[0005] Currently, when printing, it is necessary to induce color and scattering characteristics evenly in the printed product, and many filaments with different characteristics (color, scattering) need to be in stock. Based on this, it is usually necessary to connect different filaments to the printer head at the same time, and it is necessary to control the usage of each filament for printing, so a multi-purpose printer head is designed. Utility Model Content

[0006] The main purpose of the utility model is to provide a printer head and a printer, aiming to improve the convenience of the printer head connecting with different printing materials during 3D printing in the prior art.

[0007] In order to solve the above technical problems, on the one hand, a printer head is proposed for a 3D printer, comprising: a material dividing member, provided with a first interface, a first mixing chamber and a second interface, and provided with a first channel connecting the first mixing chamber and the first interface, and provided with a second channel connecting the first mixing chamber and the second interface;

[0008] A mixing element is hollow and penetrates through the mixing element, and the material dividing element is arranged on the mixing element;

[0009] The nozzle is hollow and through-set and is arranged at one end of the mixing element away from the material dividing element. A first discharge port is arranged on one side of the material dividing element close to the nozzle.

[0010] In any of the above technical solutions, further, the mixing element includes a first section, a second section and a third section which are connected in sequence;

[0011] The material dividing member is located at one end of the mixing member close to the first section, the first section is arranged around the outside of the material dividing member, and the first section is sealed with the material dividing member;

[0012] The second section is disposed around the outside of the first mixing chamber, a gap is provided between the first mixing chamber and the second section, and the first mixing chamber is provided with a second discharge port facing the gap;

[0013] The nozzle is fixed to the third section.

[0014] In any of the above technical solutions, further, the first interface includes a fourth section and a fifth section;

[0015] The shape of the fourth section is adapted to the outer contour of the first mixing chamber;

[0016] The shape of the fifth section is the same as that of the second interface.

[0017] In any of the above technical solutions, further, the material dividing pieces are provided in at least two;

[0018] One of the material dividing pieces is arranged on the mixing piece, and the subsequent material dividing pieces are arranged in sequence on the fourth section of the previous material dividing piece.

[0019] In any of the above technical solutions, further, the second interface and the second channel are both uniformly arranged in multiple circumferences.

[0020] In any of the above technical solutions, further, it also includes at least one connector;

[0021] The connector is arranged at the first interface and / or the second interface.

[0022] On the other hand, a printer is provided, comprising a printer body and the above-mentioned printer head.

[0023] The beneficial effects are:

[0024] 1. The printer head of the utility model is provided with a first interface, a first mixing chamber and a second interface on the material dividing member, and the first interface and the second interface are connected to the first mixing chamber through a first channel and a second channel respectively, so that the printer head can be connected to different printing raw materials at the same time;

[0025] 2. The mixing element is arranged around the outside of the first mixing chamber, and the second discharge port and the first discharge port are respectively arranged on the side wall and the bottom surface of the first mixing chamber, so that a second mixing chamber can be formed between the mixing element and the outer side of the first mixing chamber, which is convenient for uniform mixing of the raw materials;

[0026] 3. The first interface is configured to be plugged into both the first mixing chamber and the joint, so as to facilitate the simultaneous stacking of two or more material distribution parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a front view structural schematic diagram of a printer head of the utility model;

[0029] Figure 2 It is a schematic diagram of the cross-sectional structure of a printer head of the utility model;

[0030] Figure 3 The utility model is a perspective structural schematic diagram of a printer head.

[0031] The following are the descriptions of the reference numerals:

[0032] 1. Material dividing member; 101. First interface; 102. First mixing chamber; 103. Second interface; 104. First channel; 105. Second channel; 106. First discharge port; 107. Second discharge port; 108. Fourth section; 109. Fifth section;

[0033] 2. Mixing element; 201. First section; 202. Second section; 203. Third section; 204. Second mixing chamber;

[0034] 3. Nozzle;

[0035] 4. Connector. DETAILED DESCRIPTION

[0036] Below, the example embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0037] It should be noted that, as shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not specifically refer to the singular, but may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements.

[0038] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0041] The utility model proposes a printer head and a printer. The printer head can be connected to different printing raw materials at the same time through a first interface and a second interface, and different printing characteristics can be controlled by controlling the input amount of different raw materials; and different raw materials are introduced into a mixing chamber through a first channel and a second channel, so that the different raw materials are mixed in the first mixing chamber, so that two or more raw materials are uniformly mixed.

[0042] The following embodiments are used to describe in detail a printer head and a printer of the present application.

[0043] Embodiment 1:

[0044] In this embodiment, if Figures 1 to 3 As shown, the printer head is used for a 3D printer, comprising: a material dividing member 1, provided with a first interface 101, a first mixing chamber 102 and a second interface 103, and provided with a first channel 104 connecting the first mixing chamber 102 and the first interface 101, and provided with a second channel 105 connecting the first mixing chamber 102 and the second interface 103;

[0045] The mixing element 2 is hollow and penetrates through, and the material dividing element 1 is arranged at one end of the mixing element 2;

[0046] The nozzle 3 is hollow and through-set, and is arranged at one end of the mixing element 2 away from the material distribution element 1 . A first discharge port 106 is arranged on one side of the material distribution element 1 close to the nozzle 3 .

[0047] In the present technical solution, the material dividing member 1, the mixing member 2 and the nozzle 3 are all arranged as a circularly symmetrical structure, and the three are arranged to abut against each other from top to bottom. The first interface 101 is arranged at the axis center of the top surface of the material dividing member 1, the second interface 103 is arranged on one side of the first interface 101, and the first mixing chamber 102 is arranged at the bottom end of the material dividing member 1. Specifically, the cylindrical hollow inner cavity of the material dividing member 1 close to the bottom side is the first mixing chamber 102. The first channel 104 is a through hole vertically arranged at the axis center of the material dividing member 1, the top end is connected to the bottom surface of the first interface 101, and the bottom end is connected to the top surface of the first mixing chamber 102; the second channel 105 is placed on one side of the first channel 104, and the first discharge port 106 is located on the bottom surface of the first mixing chamber 102, and the first discharge port 106 is evenly arranged in multiple circumferences.

[0048] The mixing element 2 is coaxially arranged with the material distribution element 1, the top surface of the mixing element 2 is higher than the top surface of the first mixing chamber 102 and lower than the top surface of the material distribution element 1, and the bottom surface of the mixing element 2 is lower than the bottom surface of the first mixing chamber 102, so that the first mixing chamber 102 is wrapped in the middle section of the mixing element 2, so as to facilitate the subsequent formation of the second mixing chamber 204 between the mixing element 2 and the outer side wall of the first mixing chamber 102. The portion of the mixing element 2 close to the bottom surface is provided with a threaded hole adapted to the nozzle 3, and the nozzle 3 is screwed on the threaded hole.

[0049] When in use, different raw materials are connected to the first interface 101 and the second interface 103 respectively, and then the different raw materials are initially mixed in the first mixing chamber 102 and then extruded through the nozzle 3.

[0050] In some technical solutions, a sealing ring is provided between the material dividing element 1 and the mixing element 2 .

[0051] In other technical solutions,

[0052] In this embodiment, the mixing element 2 includes a first section 201, a second section 202 and a third section 203 in sequence;

[0053] The material dividing member 1 is located at one end of the mixing member 2 close to the first section 201. The first section 201 is arranged around the outside of the material dividing member 1, and the first section 201 and the material dividing member 1 are sealed.

[0054] The second section 202 is disposed around the outside of the first mixing chamber 102, a gap is provided between the first mixing chamber 102 and the second section 202, and the first mixing chamber 102 is provided with a second discharge port 107 facing the gap;

[0055] The nozzle 3 is fixed to the third section 203 .

[0056] In the present technical solution, the first section 201, the second section 202 and the third section 203 are arranged continuously from top to bottom, the outer diameters of the second section 202 and the third section 203 are equal, the diameter of the first section 201 is larger than the outer diameter of the second section 202, a stepped surface is provided on the inner side wall between the first section 201 and the second section 202, another stepped surface is provided on the upper side of the first mixing chamber 102 of the material dividing member 1 to abut against the stepped surface, and a bee ring is provided at the abutment. The diameter of the hollow part of the second section 202 is larger than the outer side wall diameter of the first mixing chamber 102, and a plurality of second discharge ports 107 are evenly provided on the surrounding side walls of the first mixing chamber 102.

[0057] When in use, part of the raw materials in the first mixing chamber 102 moves to the lower side of the first mixing chamber 102 through the first discharge port 106, and part of the raw materials moves to the second mixing chamber 204 between the first mixing chamber 102 and the second section 202 through the second discharge port 107, and then moves to the lower side of the first mixing chamber 102 under the guidance of the side wall of the second mixing chamber 204. On the one hand, the movement path of the raw materials is increased, and on the other hand, the raw materials passing through the first discharge port 106 and the second discharge port 107 can be mixed again.

[0058] In some technical solutions, the second discharge port 107 is arranged to be inclined relative to the radial direction of the material dividing member 1 .

[0059] In this embodiment, the first interface 101 includes a fourth section 108 and a fifth section 109;

[0060] The shape of the fourth section 108 is adapted to the outer contour of the first mixing chamber 102;

[0061] The shape of the fifth section 109 is the same as that of the second interface 103 .

[0062] In this technical solution, the outer diameter of the first mixing chamber 102 is larger than the diameter of the second interface 103, and the fourth section 108 is located on the upper side of the fifth section 109. This arrangement allows the printer head to stack two or more material dividing pieces 1, thereby increasing the types of raw materials that can be added during printing in the same period and improving the selectivity of use.

[0063] In some technical solutions, the second interface 103 and the hollow part of the fifth section 109 are both provided with internal threads.

[0064] In this embodiment, at least two material dividing members 1 are provided;

[0065] One material dividing element 1 is arranged on the mixing element 2 , and subsequent material dividing elements 1 are arranged in sequence on the fourth section 108 of the previous material dividing element 1 .

[0066] In this technical solution, two material dividing pieces 1 are provided, the first material dividing piece 1 is directly fixed on the upper side of the mixing piece 2, and the second material dividing piece 1 is fixed on the upper side of the first material dividing piece 1. In this way, at least three raw materials can be connected through the two material dividing pieces 1 at the same time.

[0067] In some technical solutions, the number of the dividing pieces 1 is three, four or other.

[0068] In some other technical solutions, four second interfaces 103 and four second channels 105 are provided on one material dividing member 1, and the second channels 105 are arranged in a staggered manner.

[0069] In this embodiment, a plurality of second interfaces 103 and second channels 105 are evenly arranged around the circumference.

[0070] In this technical solution, four second interfaces 103 and four second channels 105 are evenly arranged around the circumference.

[0071] In some technical solutions, the second interfaces 103 and the second channels 105 are evenly arranged in three, five or other numbers around the circumference.

[0072] In this embodiment, at least one connector 4 is also included;

[0073] The connector 4 is disposed at the first interface 101 and / or the second interface 103 .

[0074] In the present technical solution, two material dividing pieces 1 are provided, and nine joints 4 are provided, eight of which are respectively provided on the four second interfaces 103 of the two material dividing pieces 1 , and the other is provided on the first interface 101 of the upper material dividing piece 1 .

[0075] Embodiment 2:

[0076] This embodiment provides a printer, including a printer body and a printer head according to the first embodiment.

[0077] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A printer head for a 3D printer, characterized in that: include: A material dividing member (1) is provided with a first interface (101), a first mixing chamber (102) and a second interface (103), and is provided with a first channel (104) connecting the first mixing chamber (102) and the first interface (101), and is provided with a second channel (105) connecting the first mixing chamber (102) and the second interface (103); The mixing element (2) is hollow and penetrates through the mixing element, and the material dividing element (1) is arranged on the mixing element (2); The nozzle (3) is hollow and through-arranged, and is arranged at one end of the mixing element (2) away from the material distribution element (1); a first discharge port (106) is provided on a side of the material distribution element (1) close to the nozzle (3).

2. The printer head according to claim 1, characterized in that: The mixing element (2) comprises a first section (201), a second section (202) and a third section (203) which are arranged in sequence; The material dividing member (1) is located at one end of the mixing member (2) close to the first section (201), the first section (201) is arranged around the outside of the material dividing member (1), and the first section (201) and the material dividing member (1) are sealed; The second section (202) is arranged around the outside of the first mixing chamber (102), a gap is provided between the first mixing chamber (102) and the second section (202), and the first mixing chamber (102) is provided with a second discharge port (107) facing the gap; The nozzle (3) is fixed to the third section (203).

3. The printer head according to claim 1, characterized in that: The first interface (101) comprises a fourth section (108) and a fifth section (109); The shape of the fourth section (108) is adapted to the outer contour of the first mixing chamber (102); The shape of the fifth section (109) is the same as the shape of the second interface (103).

4. The printer head according to claim 3, characterized in that: The material dividing pieces (1) are provided in at least two numbers; One of the material dividing elements (1) is arranged on the mixing element (2), and the subsequent material dividing elements (1) are arranged in sequence on the fourth section (108) of the previous material dividing element (1).

5. The printer head according to claim 1, characterized in that: The second interface (103) and the second channel (105) are both evenly arranged in a plurality around the circumference.

6. The printer head according to claim 1, characterized in that: Also includes at least one connector (4); The connector (4) is arranged at the first interface (101) and / or the second interface (103).

7. A printer, characterized in that: The invention comprises a printer body and the printer head according to any one of claims 1 to 6.

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