CN211542401U - Print pen with rear-mounted driving mechanism - Google Patents

Abstract

The utility model relates to the technical field of 3D printing, in particular to a printing pen with a rear-mounted driving mechanism, which comprises a shell and a front-mounted driving mechanism, wherein the shell is provided with an inner cavity; a print head disposed at a front end of the housing; the driving mechanism is arranged at the rear end of the shell; the fixed bolster, be provided with the pay-off passageway, and accessible buckle subassembly is with actuating mechanism fixed mounting on the casing, actuating mechanism's output sets up in one side of pay-off passageway, beats printer head and passes through the conveying pipe with the pay-off passageway and be connected, the utility model discloses a print pen sets up actuating mechanism in the rear end of casing, and actuating mechanism's output sets up in one side of pay-off passageway, guarantees that actuating mechanism can accurately carry the material to when beating printer head, avoids beating the heat that printer head sent to influence actuating mechanism's operating stability, and, actuating mechanism sets up the rear end at the casing, makes the focus of whole print pen approach to in middle section or back end, promotes and holds a sense of touch, accords with some people's use custom.

Description

Print pen with rear-mounted driving mechanism

Technical Field

The utility model relates to a 3D prints technical field, in particular to rearmounted print pen of actuating mechanism.

Background

Most of the existing 3D printing pens are provided with the motors in a front or middle position, however, the structure is easy to cause the problem that the heat dissipation of the pen points influences the stability of the motors, and the front position of the gravity center of the printing pen is not suitable for the use habit of some people.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a rearmounted printing pen of actuating mechanism, its operating stability that can guarantee drive arrangement to the focus of printing pen is rearmounted, accords with some people's use custom.

According to the utility model discloses a print pen of first aspect embodiment includes: a housing having an inner cavity; a print head disposed at a front end of the housing; a drive mechanism disposed at a rear end of the housing; the fixed support is provided with a feeding channel, the driving mechanism can be fixedly installed on the shell through the buckle assembly, the output end of the driving mechanism is arranged on one side of the feeding channel, and the printing head is connected with the feeding channel through the feeding pipe.

According to the utility model discloses printing pen has following beneficial effect at least: the utility model discloses a print pen sets up actuating mechanism in the rear end of casing, and actuating mechanism's output sets up the one side at the pay-off passageway, guarantee that actuating mechanism can accurately carry the material to when beating printer head, the heat of avoiding beating printer head and sending influences actuating mechanism's operating stability, and, actuating mechanism sets up the rear end at the casing, make the focus of whole print pen approach to in middle section or back end, print pen uses its tiger mouth department with the staff to form the lever as the fulcrum when using, and provide the trend of slope backward, promote the thumb of people's hand and the pen-holding sense of touch of forefinger, accord with the use custom of some people.

According to some embodiments of the invention, the axis of the drive mechanism is parallel to the axis of the feeding tube.

According to some embodiments of the utility model, actuating mechanism's output is connected with the action wheel, the direction of rotation of action wheel certainly pay-off passageway to beat printer head.

According to some embodiments of the utility model, still include spacing bearing, spacing bearing with the action wheel is established separately the both sides of pay-off passageway.

According to some embodiments of the utility model, buckle subassembly is in including setting up knot piece or catching groove on the casing and corresponding the setting on last catching groove or the knot piece of fixed bolster.

According to some embodiments of the utility model, the front end of casing still is provided with electrically conductive support, electrically conductive support with still be provided with the circuit board between the actuating mechanism.

According to the utility model discloses a some embodiments, a plurality of water conservancy diversion hole has been seted up on the electrically conductive support, water conservancy diversion hole intercommunication casing and beat printer head.

According to the utility model discloses a some embodiments, the draw-in groove has been seted up on the electrically conductive support, it is protruding to be provided with the screens with draw-in groove matched with on the print head.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is an exploded schematic view of a printing pen according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the printing pen according to the embodiment of the present invention after the casing is blanked;

FIG. 3 is a schematic structural view of the conductive support of FIG. 1;

fig. 4 is a schematic structural diagram of a printing pen according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by referring to the orientation description, such as up, down, front, rear, left, right, etc., is the orientation or positional relationship shown on the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or assembly referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 and 2, a print pen with a rear-mounted driving mechanism includes a housing, a print head 200, a driving mechanism 300, a conductive bracket 600, and a fixing bracket 400, specifically, the housing is divided into a first housing 101 and a second housing 102 that can be fastened together, and the first housing 101 and the second housing 102 are fastened together to form an inner cavity capable of accommodating the driving mechanism 300 and the fixing bracket 400, the print head 200 is disposed at a front end of the housing, the conductive bracket 600 is disposed between the housing and the print head 200, the driving mechanism 300 is disposed at a rear end of the housing, and the driving mechanism 300 is mounted on the housing through the fixing bracket 400, specifically, the fixing bracket 400 is fixedly mounted on the housing through a fastening assembly, a feeding channel 402 is disposed on the fixing bracket 400, an output end of the driving mechanism 300 is disposed at one side of the feeding channel 402, and after entering from the feeding channel 402, the material is driven by the driving mechanism 300 to be transported forward, and from the feed channel 402 through the feed tube 500 to the printhead 200.

It should be noted that, referring to fig. 1 and fig. 4, the print head 200 further includes a circuit board 700, a button 800 and a power interface 900, the driving mechanism 300, the print head 200 and the button 800 are all electrically connected to the circuit board 700, a human hand controls the opening and closing of the driving mechanism 300 and the print head 200 through the button 800 and the circuit board 700, the circuit board 700 is disposed between the conductive support 600 and the driving mechanism 300 in the housing, that is, after the distance between the driving mechanism 300 and the print head 200 is increased, the circuit board 700 and the button 800 and other components can be placed in the gap between the driving mechanism 300 and the print head 200, so as to ensure that the print pen has a compact structure. A power interface 900 is provided at the rear end of the housing. The side wall of the rear end of the shell is also provided with a feed inlet 104, and the feed inlet 104 is connected with the feed channel 402.

In some embodiments, the axis of the driving mechanism 300 is parallel to the axis of the feeding tube 500, and specifically, the driving mechanism 300 includes a rotating motor and a driving wheel 301, the rotating motor is mounted on the fixed bracket 400, and the rotating direction of the driving wheel 301 is from the feeding channel 402 to the printing head 200; in some embodiments, the output end of the rotating motor is in meshing transmission with the driving wheel 301 through a bevel gear, specifically, the output end of the rotating motor is connected with a first bevel gear, the driving wheel 301 is rotatably disposed on the fixed support 400 through a rotating shaft, a second bevel gear is further disposed at one end of the rotating shaft, which is relatively far away from the driving wheel 301, and the transmission can be realized by meshing the first bevel gear and the second bevel gear; specifically, the output end of the rotation motor and the first bevel gear may be connected through a reduction gear train, which may be a conventional reduction gearbox structure or a conventional manner in which several gears for reducing speed are engaged.

In some embodiments, the print pen further includes a bearing 302, the bearing 302 is rotatably disposed on the fixed bracket 400 through another rotating shaft, and specifically, the bearing 302 and the rotating wheel are disposed on two sides of the feeding channel 402 correspondingly.

In some embodiments, the fastening assembly includes a fastening block 401 or a fastening groove 103 disposed on the housing and a fastening groove 103 or a fastening block 401 correspondingly disposed on the fixing bracket 400, which is illustrated in the present embodiment as the fastening groove 103 is disposed on the first housing 101, and the fastening block 401 is correspondingly disposed on the fixing bracket 400, a fastening groove capable of accommodating the driving mechanism 300 is disposed on the first housing 101, and the driving mechanism 300 is mounted on the fastening groove, which may be two stopping portions disposed at the front and rear ends of the driving mechanism 300 and matched with the fastening groove to prevent the driving mechanism 300 from moving, or may be pressed onto the first housing 101 by the way that the fixing bracket 400 is fastened to the first housing 101.

In some embodiments, the print head 200 may adopt a commercially conventional structure and model, and generally includes a pen head 201, a nozzle 203, and a heating wire 202 wound on an outer surface of the nozzle 203, a slot 602 is disposed on the conductive bracket 600, and a retaining protrusion 204 matched with the slot 602 is disposed on an outer surface of the nozzle 203, that is, the nozzle 203 can be detachably connected in a manner of being matched with the retaining protrusion 204 through the slot 602, specifically, the slot 602 is L-shaped, and the retaining protrusion 204 can be inserted into the L-shaped slot 602 and rotated by a certain angle to ensure that the nozzle 203 is stably connected with the conductive bracket 600.

Referring to fig. 3, in some embodiments, a plurality of flow guiding holes 601 are disposed on the conductive bracket 600, the flow guiding holes 601 are communicated with the inner cavity of the housing and the cavity between the pen point 201 and the conductive bracket 600, and the heat of the heating wire 202 can be dissipated from the pen point 201 and can flow into the inner cavity of the housing from the flow guiding holes 601, so as to further improve the heat dissipation effect of the print head 200, and since the driving mechanism 300 is located at the rear end of the housing, the heat dissipated into the inner cavity is difficult to reach the driving mechanism 300, secondly, thermal sensors can be disposed in the nozzle 203 and the inner cavity of the housing, and when the temperature in the nozzle 203 or the inner cavity reaches a certain value, the power supply can be cut off through the circuit board 700, thereby avoiding burning out the print pen.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (8)

1. Print pen of rearmounted actuating mechanism, its characterized in that includes:

a housing having an inner cavity;

a print head (200) disposed at a front end of the housing;

a drive mechanism (300) disposed at a rear end of the housing;

the printing device comprises a fixed support (400) which is provided with a feeding channel (402), a driving mechanism (300) can be fixedly arranged on the shell through a clamping assembly, the output end of the driving mechanism (300) is arranged on one side of the feeding channel (402), and the printing head (200) is connected with the feeding channel (402) through a feeding pipe (500).

2. The print pen with the rear drive mechanism according to claim 1, wherein the axis of the drive mechanism (300) is parallel to the axis of the feed tube (500).

3. Print pen with rear arranged driving mechanism according to claim 1, characterized in that the output end of the driving mechanism (300) is connected with a driving wheel (301), and the rotation direction of the driving wheel (301) is from the feeding channel (402) to the print head (200).

4. The print pen with the rear driving mechanism according to claim 3, further comprising a limit bearing (302), wherein the limit bearing (302) and the driving wheel (301) are respectively arranged at two sides of the feeding channel (402).

5. Print pen with rear arranged drive mechanism according to claim 1, characterized in that the snap assembly comprises a snap block (401) or a snap groove (103) arranged on the housing and a corresponding snap groove (103) or a snap block (401) arranged on the fixed bracket (400).

6. The print pen with the rear-mounted driving mechanism according to claim 1, wherein a conductive bracket (600) is further arranged at the front end of the housing, and a circuit board (700) is further arranged between the conductive bracket (600) and the driving mechanism (300).

7. The print pen with the rear driving mechanism according to claim 6, wherein the conductive bracket (600) is provided with a plurality of diversion holes (601), and the diversion holes (601) are communicated with the housing and the print head (200).

8. The print pen with the rear-mounted driving mechanism according to claim 6 or 7, wherein a slot (602) is formed on the conductive bracket (600), and a locking protrusion (204) matched with the slot (602) is formed on the print head (200).

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