3D printing pen

Abstract

The utility model relates to a kind of 3D printing pens, and its technical solution main points are: including: pen shell, discharge nozzle, inner lining module, heating module, transmission module, drive module, and control module;Discharge nozzle is installed in the one end of pen shell, and with the inside of pen shell intercommunication;The discharge end of heating module is placed in the inside of the discharge nozzle and the discharge port of discharge nozzle intercommunication;Inner lining module is provided with feeding channel;The discharge end of feeding channel is communicated with the feeding end of heating module;Transmission module is installed in the inside of the inner lining module and is drivenly connected with 3D printing material;Drive module is installed in the one side of the inner lining module and the input end of the transmission module is drivenly connected;By setting inner lining module in pen shell, so that each component in pen shell is attached and installed on inner lining module, in the processing process, without 3D printing pen integral assembly all assembly completion, product use test can be carried out, so that production line operation, improve its production processing efficiency, while facilitating later maintenance and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing pen technology, and more specifically, to a 3D printing pen. Background Technology

[0002] 3D printing, also known as rapid prototyping, is a new industrial processing technology. For plastic materials, the principle of 3D printing is generally to melt the plastic and then spray it out. After the sprayed material cools and solidifies, it forms the desired shape. 3D printing systems used for industrial processing are relatively complex. Applying the 3D printing principle to small-structure drawing pens enables the pens to achieve simple 3D printing functions. 3D printed pens not only increase the fun of drawing pen products, but also assist designers in their design expression. However, existing 3D printed pens have complex structures, are inconvenient to assemble, and usually require the entire assembly to be completed before they can be used for testing, which is inconvenient for production line operations and the later maintenance and repair of 3D printed pens. Therefore, we propose a new 3D printed pen. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a 3D printing pen to solve the technical problems existing in the background technology.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a 3D printing pen, comprising: a pen shell and a nozzle; the pen shell is equipped with: an inner liner module, a heating module for heating 3D printing material, a transmission module for pushing 3D printing material towards the heating module, a driving module for driving the transmission module, and a control module; the nozzle is installed at one end of the pen shell and communicates with the inner side of the pen shell; the discharge end of the heating module is located inside the nozzle and communicates with the discharge port of the nozzle; the inner liner module... A feeding channel is provided; the outlet end of the feeding channel is connected to the inlet end of the heating module; the transmission module is installed inside the inner liner module, and its output end is connected to the 3D printing material; the drive module is installed at one end of the outer wall of the inner liner module, and its output end passes through the outer wall of the inner liner module and is connected to the input end of the transmission module; the control module is installed and fixedly connected to the inner liner module; the control module is electrically connected to the heating module and the drive module respectively; the other end of the pen shell has an inlet hole that communicates with the inlet end of the feeding channel.

[0005] Optionally, the inner lining module includes: an upper cover and a lower cover; at least one buckle is provided on each side of the upper cover; at least one slot adapted to the buckle is provided on each side of the lower cover; a locking foot adapted to the buckle is provided in the slot; the upper cover and the lower cover are fastened together by the buckle and the locking foot to form a receiving cavity for accommodating the transmission module and the feeding channel; the discharge end of the feeding channel is connected to the feed end of the heating module.

[0006] Optionally, the transmission module includes: a transmission wheel assembly, a rotating shaft, a feeding gear for driving the movement of 3D printing material, and a pressure roller; the transmission wheel assembly is installed in the accommodating cavity; the input end of the transmission wheel assembly passes through the side wall of the lower cover and is connected to the output end of the drive module; one end of the rotating shaft is fixedly connected to the output end of the transmission wheel assembly, and the other end is fixedly connected to the feeding gear; the feeding gear is located on one side of the feeding channel; the feeding gear can abut against one side of the 3D printing material in the feeding pipe; the pressure roller is rotatably installed in the accommodating cavity and located on the other side of the feeding channel; the pressure roller can abut against the other side of the 3D printing material in the feeding pipe; the feeding gear and the pressure roller are symmetrically arranged.

[0007] Optionally, the drive module includes: a motor and a transmission gear; a mounting portion is provided on the outer side of one end of the lower cover; the motor is installed in the mounting portion, and its output end passes through the side wall of the lower cover and is fixedly connected to the transmission gear; the transmission gear is installed in the accommodating cavity and is connected to the input end of the transmission wheel assembly; the motor is electrically connected to the control module.

[0008] Optionally, the control module includes: a control panel and a battery; the control panel is installed on the top of the upper cover; the battery is installed on the outside of the other end of the lower cover; the control panel is electrically connected to the power supply and the motor respectively; the control panel is provided with a control switch and several control buttons; the top of the control buttons passes through the side wall of the pen shell and is placed outside the pen shell; a charging port is provided at the end of the pen shell near the feed port.

[0009] Optionally, the heating module includes: a heat insulation tube, a copper head, and at least one high-temperature adhesive tape; one end of the copper head is connected to and communicates with the discharge end of the heat insulation tube, and the other end is connected to the discharge port of the discharge nozzle; the high-temperature adhesive tape is attached to the outer wall of the copper head; the copper head is electrically connected to the control panel.

[0010] Optionally, the pen shell has several heat dissipation holes on the side wall near the nozzle.

[0011] Optionally, the copper head is integrally formed with the heat insulation tube.

[0012] This utility model has a stable overall structure and is easy to install. By setting an inner liner module inside the pen shell, the heating module, transmission module, drive module and control module can be attached to the inner liner module. During the production line processing, it is not necessary to assemble the entire 3D printing pen before product use testing, which facilitates production line operation, effectively improves production efficiency, and also facilitates the later repair and maintenance of the 3D printing pen. Attached Figure Description

[0013] Figure 1 This is an assembly drawing of this utility model;

[0014] Figure 2 This is a schematic diagram showing the structural relationship between the inner liner module and each component during the assembly of this utility model;

[0015] Figure 3 This is a schematic diagram of the inner lining module structure in this utility model;

[0016] Figure 4 This is a schematic diagram showing the structural relationship between the heating module and the inner lining module in this utility model;

[0017] Figure 5 This is a schematic diagram showing the structural relationship between the lower cover and various components in this utility model.

[0018] In the diagram: 1. Pen shell; 2. Nozzle; 3. Inner liner module; 31. Top cover; 32. Bottom cover; 33. Buckle; 34. Clamping foot; 35. Slot; 36. Feeding channel; 4. Heating module; 41. Heat insulation tube; 42. Copper head; 43. High-temperature adhesive tape; 5. Transmission module; 51. Transmission wheel set; 52. Rotating shaft; 53. Feeding gear; 54. Pressure roller; 6. Drive module; 61. Motor; 62. Transmission gear; 7. Control module; 71. Control panel; 72. Battery; 73. Charging port; 74. Control button; 75. Indicator light; 76. Control switch; 8. Feed hole; 9. 3D printing material; 10. Heat dissipation hole. Detailed Implementation

[0019] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0021] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] like Figure 1As shown, this utility model provides a 3D printing pen, including: a pen shell 1 and a nozzle 2; the pen shell 1 is equipped with: an inner liner module 3, a heating module 4 for heating 3D printing material 9, a transmission module 5 for pushing 3D printing material 9 towards the heating module 4, a driving module 6 for driving the transmission module 5, and a control module 7; the nozzle 2 is installed at one end of the pen shell 1 and communicates with the inner side of the pen shell 1; the discharge end of the heating module 4 is located inside the nozzle 2 and communicates with the discharge port of the nozzle 2; a feeding channel 36 is provided on the inner liner module 3; the feeding channel 36 The discharge end of the pen shell 1 is connected to the feed end of the heating module 4; the transmission module 5 is installed inside the inner liner module 3, and its output end passes through the side wall of the feeding channel 36 and is connected to the 3D printing material 9; the drive module 6 is installed at one end of the outer wall of the inner liner module 3, and its output end passes through the outer wall of the inner liner module 3 and is connected to the input end of the transmission module 5; the control module 7 is installed and fixedly connected to the inner liner module 3; the control module 7 is electrically connected to the heating module 4 and the drive module 6 respectively; the other end of the pen shell 1 is provided with a feed hole 8 that communicates with the feed end of the feeding channel 36;

[0024] In this embodiment, as Figure 1-5 As shown, by setting an inner liner module 3 inside the pen shell 1, the heating module 4, transmission module 5, drive module 6, and control module 7 can be attached to the inner liner module 3. During the production line processing, the 3D printing pen does not need to be fully assembled before product use testing can be carried out, which facilitates production line operation, effectively improves its production efficiency, and also facilitates the later repair and maintenance of the 3D printing pen.

[0025] Further, the inner lining module 3 includes: an upper cover 31 and a lower cover 32; at least one buckle 33 is provided on each side of the upper cover 31; at least one slot 35 adapted to the buckle 33 is provided on each side of the lower cover 32; a locking foot 34 adapted to the buckle 33 is provided in the slot 35; the upper cover 31 and the lower cover 32 are fastened together by the buckle 33 and the locking foot 34 to form a receiving cavity for accommodating the transmission module 5 and the feeding channel 36; the discharge end of the feeding channel 36 is connected to the feed end of the heating module 4.

[0026] In this embodiment, as Figure 2-5As shown, the upper cover 31 and the lower cover 32 are fastened together by the snap fastener 33 and the snap fastener foot to form a cavity for housing the transmission module 5 and a feeding channel 36 for the 3D printing material 9 to pass through. The overall structure is stable and easy to install. The assembly method of snap fastener 33 and snap fastener foot is more convenient for disassembly and maintenance of the inner liner module 3 than the assembly method of screw connection, and requires less space during assembly.

[0027] Further, the transmission module 5 includes: a transmission wheel set 51, a rotating shaft 52, a feeding gear 53 for driving the movement of the 3D printing material 9, and a pressure roller 54; the transmission wheel set 51 is installed in the accommodating cavity; the input end of the transmission wheel set 51 passes through the side wall of the lower cover 32 and is connected to the output end of the drive module 6; one end of the rotating shaft 52 is fixedly connected to the output end of the transmission wheel set 51, and the other end is fixedly connected to the feeding gear 53; the feeding gear 53 is located on one side of the feeding channel 36; the feeding gear 53 can abut against one side of the 3D printing material 9 in the feeding pipe; the pressure roller 54 is rotatably installed in the accommodating cavity and is located on the other side of the feeding channel 36; the pressure roller 54 can abut against the other side of the 3D printing material 9 in the feeding pipe; the feeding gear 53 and the pressure roller 54 are symmetrically arranged.

[0028] In this embodiment, as Figure 3-5 The transmission wheel assembly 51 shown is formed by the interaction of multiple transmission gears 62. During operation, the drive module 6 drives the transmission wheel assembly 51 to work, which in turn drives the rotating shaft 52 to rotate. During the rotation of the rotating shaft 52, the feeding gear 53 installed at its other end rotates, which in turn cooperates with the pressure roller 54 to push the 3D printing material 9 along the feeding pipe to the heating module 4 for heating. The heated 3D printing material 9 is then pushed out through the heating module 4 and the discharge nozzle 2 to ensure the normal operation of the 3D printing pen.

[0029] Furthermore, the drive module 6 includes: a motor 61 and a transmission gear 62; a mounting portion is provided on the outer side of one end of the lower cover 32; the motor 61 is mounted in the mounting portion, and its output end passes through the side wall of the lower cover 32 and is fixedly connected to the transmission gear 62; the transmission gear 62 is mounted in the accommodating cavity and is connected to the input end of the transmission wheel set 51; the motor 61 is electrically connected to the control module 7.

[0030] In this embodiment, as Figure 3-5The motor 61 shown is the same type of motor commonly used in 3D printing pens on the market, which is existing technology and will not be described in detail here. During assembly, the motor 61 is installed and fixed to the outer wall of the lower cover 32 near the discharge nozzle 2 by screws. When working, the motor 61 rotates, which in turn drives the transmission gear 62 at its output end to rotate. The transmission gear 62 drives the transmission module 5 to work, and then the transmission module 5 cooperates with the 3D printing material 9 to realize the feeding and printing operations of the 3D printing pen.

[0031] Furthermore, such as Figure 1-2 As shown, the control module 7 includes: a control panel 71 and a battery 72; the control panel 71 is installed on the top of the upper cover 31; the battery 72 is installed on the outside of the other end of the lower cover 32; the control panel 71 is electrically connected to the power supply and the motor 61 respectively; the control panel 71 is provided with a control switch 76 and several control buttons 74; the top of the control buttons 74 passes through the side wall of the pen shell 1 and is placed outside the pen shell 1; a charging port 73 is provided at one end of the pen shell 1 near the feed inlet; the control panel 71 shown is a commonly used control panel 71 on the market, which belongs to the prior art and will not be described in detail here.

[0032] Optional, such as Figure 1-2 As shown in this embodiment, the pen shell 1 is also provided with an indicator light 75, which is electrically connected to the control panel 71. When the user uses the printing pen, the indicator light 75 lights up synchronously. The indicator light 75 can display two states: green and red. When the indicator light 75 is green, it indicates that the 3D printing pen has enough power to meet the usage requirements. When the indicator light 75 is red, it indicates that the power is insufficient and needs to be charged in time so that it can be used normally.

[0033] Furthermore, the heating module 4 includes: a heat insulation tube 41, a copper head 42, and at least one high-temperature adhesive tape 43; one end of the copper head 42 is connected to and communicates with the discharge end of the heat insulation tube 41, and the other end is connected to the discharge port of the discharge nozzle 2; the high-temperature adhesive tape 43 is attached to the outer wall of the copper head 42; the copper head 42 is electrically connected to the control panel 71.

[0034] In this embodiment, as Figure 2-5 As shown, the heat insulation tube 41 can be an FPC tube or a heating wire. The FPC tube is an FPC tube with built-in heating and an NTC thermistor. Both the FPC tube and the heating wire are commercially available finished products and belong to existing technology, so they will not be described in detail here. The heat insulation tube 41, the copper head 42 and the high-temperature adhesive paper 43 work together to form the overall structure of the heating component. When working, the copper head 42 is energized and heats up, thereby melting and discharging the 3D printing material 9 that has entered and passed through. Then, with the cooperation of the drive module 6 and the transmission module 5, it is pushed out to realize the 3D printing operation.

[0035] Optionally, in this embodiment, the copper head and the heat insulation tube are integrally molded using in-mold molding, which saves assembly steps and improves product quality.

[0036] Furthermore, a plurality of heat dissipation holes 10 are provided on the side wall of the pen shell 1 near the end of the nozzle 2.

[0037] In this embodiment, as Figure 1 As shown, by setting heat dissipation holes 10, the heating module 4 can be cooled in a timely manner to ensure the normal use of the 3D printing pen.

[0038] This utility model discloses a 3D printing pen with a stable overall structure and convenient installation. By setting an inner lining module inside the pen shell, the heating module, transmission module, drive module, and control module can be attached and installed on the inner lining module. During the production line processing, it is not necessary to assemble the entire 3D printing pen before product use testing, which facilitates production line operation, effectively improves production efficiency, and also facilitates the later repair and maintenance of the 3D printing pen.

[0039] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A 3D printing pen, comprising: A pen shell and a nozzle; characterized in that the pen shell contains: an inner liner module, a heating module for heating 3D printing material, a transmission module for pushing the 3D printing material towards the heating module, a drive module for driving the transmission module, and a control module; the nozzle is installed at one end of the pen shell and communicates with the inner side of the pen shell; the discharge end of the heating module is located inside the nozzle and communicates with the discharge port of the nozzle; the inner liner module is provided with a feeding channel; the discharge end of the feeding channel communicates with the feed end of the heating module; the transmission module is installed inside the inner liner module, and its output end is connected to the 3D printing material; the drive module is installed at one end of the outer wall of the inner liner module, and its output end passes through the outer wall of the inner liner module and is connected to the input end of the transmission module; the control module is fixedly connected to the inner liner module; the control module is electrically connected to the heating module and the drive module respectively; the other end of the pen shell has a feed hole communicating with the feed end of the feeding channel.

2. A 3D printing pen according to claim 1, characterized in that, The inner lining module includes an upper cover and a lower cover; at least one buckle is provided on each side of the upper cover; at least one slot is provided on each side of the lower cover to match the buckle; a locking foot is provided in the slot to match the buckle; the upper cover and the lower cover are fastened together by the buckle and the locking foot to form a receiving cavity for housing the transmission module and the feeding channel; the discharge end of the feeding channel is connected to the feed end of the heating module.

3. A 3D printing pen according to claim 2, characterized in that, The transmission module includes: a transmission wheel assembly, a rotating shaft, a feeding gear for driving the movement of 3D printing material, and a pressure roller; the transmission wheel assembly is installed in the accommodating cavity; the input end of the transmission wheel assembly passes through the side wall of the lower cover and is connected to the output end of the drive module; one end of the rotating shaft is fixedly connected to the output end of the transmission wheel assembly, and the other end is fixedly connected to the feeding gear; the feeding gear is located on one side of the feeding channel; the feeding gear can abut against one side of the 3D printing material in the feeding channel; the pressure roller is rotatably installed in the accommodating cavity and located on the other side of the feeding channel; the pressure roller can abut against the other side of the 3D printing material in the feeding channel; the feeding gear and the pressure roller are symmetrically arranged.

4. A 3D printing pen according to claim 3, characterized in that, The drive module includes a motor and a transmission gear; a mounting part is provided on the outer side of one end of the lower cover; the motor is installed in the mounting part, and its output end passes through the side wall of the lower cover and is fixedly connected to the transmission gear; the transmission gear is installed in the accommodating cavity and is connected to the input end of the transmission wheel set; the motor is electrically connected to the control module.

5. A 3D printing pen according to claim 4, characterized in that, The control module includes a control panel and a battery; the control panel is installed on the top of the upper cover; the battery is installed on the outside of the other end of the lower cover; the control panel is electrically connected to the power supply and the motor respectively; the control panel is provided with a control switch and several control buttons; the top of the control buttons passes through the side wall of the pen shell and is placed outside the pen shell; a charging port is provided at one end of the pen shell near the feed hole.

6. A 3D printing pen according to claim 5, characterized in that, The heating module includes: a heat insulation tube, a copper head, and at least one high-temperature adhesive tape; one end of the copper head is connected to and communicates with the discharge end of the heat insulation tube, and the other end is connected to the discharge port of the discharge nozzle; the high-temperature adhesive tape is attached to the outer wall of the copper head; the copper head is electrically connected to the control panel.

7. A 3D printing pen according to claim 1, characterized in that, The pen casing has several heat dissipation holes on the side wall near the nozzle.

8. A 3D printing pen according to claim 6, characterized in that, The copper head is integrally formed with the heat insulation pipe.

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