CN217752775U

CN217752775U - Two-in one-out module for 3D double-color printer

Info

Publication number: CN217752775U
Application number: CN202220987128.1U
Authority: CN
Inventors: 王立; 曹杰; 佘洪杰
Original assignee: Jiangsu Weibaoshi Intelligent Technology Co ltd
Current assignee: Jiangsu Weibaoshi Intelligent Technology Co ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-11-08
Anticipated expiration: 2032-04-26

Abstract

The utility model discloses a two advance one and go out module for 3D double-colored printer, include: the device comprises a shell, two pneumatic joints connected with the shell, and two feeding pipes; one end of the feed pipe is arranged in the shell, and the other end of the feed pipe penetrates through the pneumatic connector; the inner cavity of the feed pipe is communicated with the Y-shaped channel; the Y-shaped channel comprises two upper end channels and a lower end channel; the maximum diameter of the Y-shaped channel is at most 2.1 times of the diameter of the upper end channel; the shell is made of plastic materials. The utility model discloses a plastic casing adopts littleer Y type passageway design, makes the material silk wear less, is difficult for piling up to turn round, and it is smooth and easy to advance the silk.

Description

Two-in one-out module for 3D double-color printer

Technical Field

The utility model belongs to the 3D double-colored field of printing relates to a two advance a module for 3D double-colored printer.

Background

The 3D printer includes subassembly such as shower nozzle, choke, through the choke heating, melts the material silk, follows the shower nozzle ejection of compact again, and then realizes 3D and prints. To realize the two-color printing, there are several ways:

1. there are two shower nozzles for same shower nozzle subassembly: two shower nozzles use the wire rod of different colours, use through the change of two shower nozzles to print out double-colored effect. The three-dimensional printing machine is the earliest used one of the 3D printers, two hot ends and two throats are fixed on one assembly, and the three-dimensional printing machine has the defect that the two spray heads are very close to each other, when the spray heads are switched, one spray head does not work, but the other spray head is still heated, and residual material threads are easy to leak from the spray nozzles and adhere to a printed model; non-operational nozzles can also easily scratch the print pattern.

2. Two throats of a shower nozzle: the method is characterized in that two throats are arranged at one hot end and communicated with the hot end, and when one throat is used for feeding, the other throat can also discharge wires, so that the two throats simultaneously feed the wires.

3. Two independent showerhead assemblies: in a way that two independent spray head assemblies can be independently controlled, but the control mode is more complicated.

4. One spray head and one two-in one-out module: the mode is that one hot end is provided with one throat pipe, and the switching of two materials is realized through two in-and-out modules, so that the condition that a spray head scrapes a printing model and the condition that another spray head leaks wires on the printing model is avoided. However, the switching channel is made of metal, the connecting position of the channel is too large, the material wire is easily abraded, the material wire is easily clamped, the switching is failed, and the whole model is wasted; in addition, the mode is generally integrated production and cannot meet DIY requirements.

For example, chinese patent application No. CN202121290538.2 discloses a novel high temperature resistant print head structure for a two-in one-out 3D printer, which comprises a heat sink, a throat, a heating block and a nozzle, wherein the heat sink and the heating block are connected through a connecting member, the nozzle is inserted into the heating block, and the upper end of the nozzle is conducted with the heat sink through the throat. The heat dissipation body is internally provided with a first feeding channel and a second feeding channel, and the lower ends of the first feeding channel and the second feeding channel are communicated with a common channel which forms a Y shape with the first feeding channel and the second feeding channel. The heating device is characterized in that a Teflon tube and a throat tube which are vertically distributed and are mutually communicated are arranged in the shared channel, feed inlets which are communicated with the first feed channel and the second feed channel are formed in the upper end of the Teflon tube, and the lower end of the throat tube extends into the heating block and is communicated with the nozzle. The utility model discloses a beat printer head compact structure, the cost is lower. However, the intersection point of the Y-shaped channel of the structure has large volume, and the material wires are easy to accumulate to cause wire clamping, so that the switching fails; and the radiator and the channel are integrally processed parts, so that the radiating effect cannot be adjusted in time according to the printer.

SUMMERY OF THE UTILITY MODEL

To the problem of the easy card silk of current 3D double-colored printer, the utility model provides a two advance a module for 3D double-colored printer, material silk wearing and tearing are little, advance the silk smoothly.

In order to solve the technical problem, the utility model provides a following technical scheme:

a two-in one-out module for a 3D bi-color printer, comprising:

-a housing: the shell is made of plastic;

two pneumatic connections: is connected with the shell;

-and two feed pipes: one end of the feed pipe is arranged in the shell, and the other end of the feed pipe penetrates through the pneumatic connector;

the inside of the shell is hollow to form a Y-shaped channel, and the Y-shaped channel is communicated with the inner cavity of the feeding pipe;

the Y-shaped channel comprises two upper end channels and a lower end channel; the maximum diameter of the Y-shaped channel is at most 2.1 times the diameter of the upper end channel.

As a further improvement, the utility model discloses a still be equipped with first passageway in the casing, first passageway is on the extension line of upper end passageway, inlet pipe one end is located first passageway.

As a further improvement, the diameter of the first channel is larger than that of the upper end channel.

As a further improvement of the utility model, the material of the feeding pipe is polytetrafluoroethylene.

As a further improvement, the maximum diameter of the Y-shaped channel is 4.6mm, and the diameter of the upper end channel is 2.2mm.

As a further improvement of the present invention, the housing is connected to the pneumatic connector through an embedded nut provided therein.

As a further improvement, the shell comprises an upper cover and a lower cover, and the upper cover and the lower cover are connected through self-tapping screws.

Has the beneficial effects that:

the utility model discloses a plastic housing adopts littleer Y type passageway design, makes the wear of material silk littleer, and difficult the piling up is turned round, and it is smooth and easy to advance the silk.

It should be understood that all combinations of the aforementioned concepts and additional concepts described in greater detail below may be considered as part of the inventive subject matter provided that such concepts do not contradict each other.

Drawings

The drawings are not intended to be drawn to scale unless specifically indicated. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view of fig. 1.

In the figures, the numerals indicate the following meanings: 1. a feed pipe; 2. pneumatic joint: 3. embedding a nut; 4. self-tapping screws; 5. a housing.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below. It is to be understood that the embodiments described are some, not all embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.

The use of "first," "second," and similar terms in the description and in the claims does not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Similarly, the singular forms "a," "an," or "the" do not denote a limitation of quantity, but rather denote the presence of at least one, unless the context clearly dictates otherwise. The terms "comprises" or "comprising," and the like, mean that the elements or components listed in the preceding list of elements or components include the features, integers, steps, operations, elements and/or components listed in the following list of elements or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.

The utility model provides a 3D double-colored printer, includes radiator, two advance one and go out module and shower nozzle, and the radiator is located the outside of two advance one and go out the module, and the shower nozzle is established two advance one and go out the module below.

The two-in one-out module comprises:

a housing 5: the shell 5 is made of plastic materials and is provided with a Y-shaped channel and a first channel which are hollow inside;

two pneumatic connections 2 connected to the housing 5;

and two feeding pipes 1: one end of the feed pipe 1 is arranged in the first channel of the shell 5, and the other end of the feed pipe penetrates through the pneumatic connector 2.

The Y-shaped channel is formed by two upper end channels and a lower end channel and is Y-shaped.

In order to reduce the size of the step at the double-feeding intersection point and prevent the wire from being clamped due to bending and accumulation of the wire in the channel caused by overlarge channel, the shell 5 is made of plastic; specifically, the maximum diameter of the Y-channel is at most 2.1 times the diameter of the upper channel. Through reducing the size of Y type passageway department, can guarantee that the material silk is difficult for piling up, avoid the crooked book of residual material silk to turn round, improve into silk smooth and easy degree.

The utility model discloses an appearance also is unanimous with inside passage, wholly is the Y type, and the below is equipped with the transverse structure who is used for fixed mounting. Inside it, the feed pipe 1 inner chamber is equipped with the material silk, and the inner chamber and the Y type passageway of feed pipe 1 are linked together.

The hollow channel in the shell 5 is communicated from top to bottom, and the first channel is arranged on the extension line of the upper end channel. The Y-shaped channel is used for feeding and discharging the material wires, and the first channel is used for placing the feeding pipe 1. The material wire sequentially enters the upper end channel and the lower end channel from the feeding pipe and is sprayed out through the nozzle.

In order to immobilize the feed tube 1 in the housing 5, the diameter of the first passage is larger than the diameter of the upper passage and the feed tube 1 just gets stuck in the first passage.

In order to further improve the connection strength of the first channel and the feed pipe, the first channel and the feed pipe are in interference fit.

The inner diameters of the channels are different, but the inner parts of the channels are smooth inner walls, so that feeding is facilitated.

Further, a transition channel is arranged between the first channel and the Y-shaped channel. Because the diameters of the upper end channels of the first channel and the Y-shaped channel are different, the transition channels with the diameters decreasing in sequence from top to bottom are arranged for realizing smooth transition of the inner walls of the first channel and the Y-shaped channel. The diameter of the bottom of the transition channel is the same as that of the top of the upper end channel.

The material of the inlet pipe 1 is polytetrafluoroethylene, the pneumatic joint is made of metal, the embedded nut can also be made of metal, and other parts of the two inlet and outlet modules are made of plastic. Light weight and convenient manufacture.

In this example, the diameter of the intersection of the Y-shaped channel is the largest, 4.6mm in diameter, and 2.2mm in diameter at the upper end of the Y-shaped channel. The feeding diameter can ensure smooth wire feeding and ensure no wire clamping during feeding.

In order to further reduce the overall size of the module, the housing 5 is connected to the pneumatic connector 2 by means of a built-in nut 3 provided therein. The pneumatic connector 2 can realize the connection or disconnection of the pipeline without tools; when the sleeve ring of the parent body moves to the other end, the stainless steel ball automatically rolls outwards, the daughter body is disconnected under the action of the spring force of the common valve of the parent body and the daughter body, the valves of the daughter body and the parent body are respectively closed, and the fluid flow is instantly blocked, so that the stainless steel ball is used for adjusting the feeding.

The housing 5 includes an upper cover and a lower cover, which are connected by the tapping screw 4. The number of the self-tapping screws 4 is three, and a triangular stabilizing structure is formed on the shell 5, so that structural stability of the two-in one-out module is guaranteed.

The triangular stabilizing structure is an isosceles triangle.

Casing 5 is different with prior art's cuboid structure including the horizontal portion that sets up the self tapping screw and the perpendicular portion that sets up the passageway, can the at utmost reduce the volume, is convenient for make up with other parts to the 3D printer of equipment different grade type.

In the embodiment, the embedded nut 3 is arranged in the upper cover, and after the lower cover and the upper cover are assembled, a channel formed between the lower cover and the upper cover is a Y-shaped channel and a first channel. The structure is simple and easy to assemble.

Through a plurality of test operation tests, the two-in one-out module is smooth in feeding and free from wire clamping.

The utility model discloses a radiator of 3D double-colored printer can select as required, and two advance one and go out the module and be detachable connection with it, can use on different 3D printers, has improved the flexibility of using.

Compared with the prior art, the two-in one-out module of the utility model has the advantages that the step at the intersection point of the Y-shaped channel of the material wire is smaller, the bending of the material wire due to too large space is avoided, the abrasion is reduced, and the success rate of printing is improved; because the internal channel is small, the volume of the whole two-in one-out module can be smaller, the two-in one-out module is convenient to combine with different radiators, and the flexibility of machine modification is improved.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.

Claims

1. A two-in one-out module for a 3D bi-color printer, comprising:

a housing: the shell is made of plastic;

two pneumatic joints: is connected with the shell;

and two feed pipes: one end of the feed pipe is arranged in the shell, and the other end of the feed pipe penetrates through the pneumatic connector;

the inside of the shell is hollow to form a Y-shaped channel which is communicated with the inner cavity of the feeding pipe; the Y-shaped channel comprises two upper end channels and a lower end channel; the maximum diameter of the Y-shaped channel is at most 2.1 times the diameter of the upper end channel.

2. The two-in one-out module for the 3D bicolor printer according to claim 1, wherein a first channel is further arranged in the shell, the first channel is arranged on an extension line of the upper end channel, and one end of the feed pipe is positioned in the first channel.

3. A two-in one-out module for a 3D bi-color printer according to claim 2, wherein the diameter of the first channel is greater than the diameter of the upper end channel.

4. The two-in one-out module for a 3D bi-color printer of claim 1, wherein the material of the feed tube is PTFE.

5. A two-in one-out module for a 3D bi-color printer according to claim 1, wherein the Y-channel has a maximum diameter of 4.6mm and an upper channel diameter of 2.2mm.

6. A two-in one-out module for a 3D bi-color printer according to claim 1, wherein the housing is connected to the pneumatic fitting by an embedded nut disposed therein.

7. The two-in one-out module for a 3D bi-color printer of claim 1, wherein the housing comprises an upper cover and a lower cover connected by self-tapping screws.