TWI690430B - Cleaning module of painting pen - Google Patents

Abstract

A cleaner module of painting pen includes: a housing having a main slope and a set of horizontal plane; a main station contained in the housing, a set of main slider contacted with the main slope and a secondary slope is disposed thereon, the main station can shift along the main slope, the main slider is contacted with the main slope at multiple points when located on the main slope, and the main slider is contacted with the horizontal plane at multiple points when located on the horizontal plane; a secondary station contained in the main station and contacted with the secondary slope, and a cover is arranged thereon; and an interference structure. The secondary station is moved by the interference structure along the secondary slope to raise the cover, and the main slider is supported by the horizontal support surface when on the horizontal plane to keep the cover.

Description

Nozzle cleaning module

The invention relates to a nozzle cleaning module of a hot-melt 3D printing device, in particular to a hidden nozzle cleaning module.

Colorable 3D printing devices generally have a forming nozzle for extruding molten plastic and a coloring nozzle for inkjet coloring. Therefore, the 3D printing device is provided with a cleaning module for cleaning the coloring nozzle and a set of cover plate modules for covering the coloring nozzle when the 3D printing device is idle to prevent the ink from drying out. Generally speaking, the cleaning module includes a brush head that protrudes out of the forming plane, and the coloring nozzle moves to rub against the brush head to clean the coloring nozzle. The cover plate module is generally movable, and at least a part of its mechanism protrudes from the forming plane for the coloring nozzle to push to raise the cover plate.

At least the above-mentioned members protrude from the molding plane. When printing, it is necessary to avoid the working range of the molding nozzle or the coloring nozzle from interfering with the aforementioned protruding members. When the molding nozzle moves to the edge of the molding plane, the coloring nozzle may have exceeded the range of the molding plane and interfere with the aforementioned protruding member. Therefore, the stroke of the molding nozzle in a specific direction is not allowed to reach the edge of the molding plane. Part of the area of the forming plane cannot be used to print the finished product, which limits the size of the printable product.

Since the brush head and the cover plate do not operate synchronously, if the brush head and the cover plate are to be stored below the molding plane, two sets of motors and gear sets need to be set to drive them separately, resulting in increased volume and cost of the device.

In view of this, the present inventors have made great efforts to study the above-mentioned prior art and cooperate with the application of academic principles, and try their best to solve the above-mentioned problems, which becomes the improvement goal of the present inventors.

The invention provides a hidden nozzle cleaning module.

The invention provides a nozzle cleaning module, which comprises a shell, a main carrier, a sub-carrier and an interference structure. The seat shell is provided with a main ramp, and a part of the main ramp is formed with a set of horizontal supporting surfaces. The main stage is accommodated in the seat shell and the main stage is provided with a scraper that protrudes upward from the main stage. The main stage is convexly provided with a set of main sliding tongues abutting the main ramp, and the main stage is provided with a Sub ramp, the main carrier can move up and down diagonally relative to the seat shell along the main ramp to move the scraper up and down. When the main sliding tenon is located on the main ramp, the main sliding tenon is along the longitudinal direction of the main ramp and the main slope props There are multiple contact points. When the main sliding tenon is located on the horizontal support surface, the main sliding tenon and the horizontal supporting surface have multiple contact points. The sub-stage is accommodated in the main stage and the sub-stage is simultaneously driven when the main stage is moving. The sub-stage is provided with a cover projecting upward from the sub-stage, at least a part of the sub-stage abuts the sub-ramp . The interference structure corresponds to the configuration of the sub-carrier. When the interference structure abuts the moving sub-carrier, it can push the sub-carrier to move relative to the main carrier along the sub-ramp to raise the cover, and when the main sliding tenon moves into the horizontal support surface At this time, the horizontal supporting surface supports the main sliding tongue and maintains the cover in the raised position.

In the nozzle cleaning module of the present invention, the interference structure is provided in the seat shell.

The spray head cleaning module of the present invention further includes a driving component, which is connected to the main stage and can push the main stage. The driving assembly includes a motor and a gear set, and the gear set respectively links the motor and the main stage. The main stage has a rack, and the rack meshes with the gear set. The rack is parallel to the main ramp.

In the nozzle cleaning module of the present invention, the main ramp and the sub ramp are inclined in opposite directions. The upper end of the main ramp is arranged toward the interference structure. The sub-carrier table is convexly provided with a sub-tenon that abuts the sub ramp. The scraper can move up and down to protrude from the top surface of the seat shell. The cover can move up and down to protrude from the top surface of the seat shell.

The nozzle cleaning module of the present invention may include a plurality of cylindrical main sliding tenons and a plurality of horizontal supporting surfaces respectively corresponding to the main sliding tenons. When the main sliding tenons are located on the main ramp, each main sliding tenon respectively contacts the main slope Dao, when the main sliding tenons are located on the horizontal supporting surface, each main sliding tenon respectively contacts each horizontal supporting surface.

The nozzle cleaning module of the present invention may include a single diamond-shaped main sliding tenon and a single horizontal supporting surface corresponding to the main sliding tenon, and the main sliding tenon has a first bearing surface and a second bearing surface arranged at an angle When the main sliding tenon is located on the main ramp, the first bearing surface is attached to the main ramp, and when the main sliding tenon is located on the horizontal support surface, the second bearing surface is attached to the horizontal support surface.

The nozzle cleaning module of the present invention moves along the inclined path by the main stage, and then changes the propelling direction by the sub-ramp and interference structure. Therefore, it is only necessary to move the main stage to drive the blade and the cover to move vertically. Moreover, when the main stage moves to the end of the stroke, the horizontal supporting surface in the main ramp of the seat shell can support the main stage, so that the main stage will not slide down the main slope without being driven by power.

10: molding plane

20: Coloring nozzle

100: seat shell

101: top surface

102: opening

110: Main ramp

111: horizontal support surface

120: Interference structure

200: main stage

201: rack

210: main tenon

211: The first bearing surface

212: second bearing surface

220: Sub ramp

230: scraper

300: Sub stage

310: Sliding tenon

320: cover

400: drive assembly

410: Motor

420: Gear set

1 and 2 are three-dimensional exploded schematic views of the nozzle cleaning module of the preferred embodiment of the present invention.

FIG. 3 is a perspective schematic view of a nozzle cleaning module of a preferred embodiment of the present invention.

4 to 8 are schematic views of various positions of the operating state of the nozzle cleaning module of the preferred embodiment of the present invention.

9 and 10 are schematic diagrams of various positions of the operating state of another form of the nozzle cleaning module of the preferred embodiment of the present invention.

Referring to FIGS. 1 to 4, a preferred embodiment of the present invention provides a nozzle cleaning module, which is applied to a hot melt 3D printing device (not shown), and corresponds to a 3D printing device on this The molding plane 10 is configured. The nozzle cleaning module of the present invention includes a housing 100, a main stage 200, a sub stage 300, a driving assembly 400, and an interference structure 120.

In this embodiment, the seat shell 100 is a hollow shell, but the present invention does not limit the material. The housing 100 is fixed to the aforementioned 3D printing device and is disposed on one side of the molding plane 10. The top surface 101 of the seat shell 100 has at least one opening 102, and the top surface 101 of the seat shell 100 does not exceed the molding plane 10. The top surface 101 of the seat shell 100 is preferably arranged flush with the molding plane 10, but the top of the seat shell 100 The surface 101 may be arranged lower than the molding plane 10. At least one main ramp 110 is provided in the seat shell 100. In this embodiment, the seat shell 100 is provided with a pair of main ramps 110 having the same structural effect. A part of each main ramp 110 is formed with a set of horizontal support surfaces 111. The set of horizontal support surfaces 111 includes a single or multiple horizontal support surfaces 111 (in this embodiment, two horizontal support surfaces 111), and only one of the main ramps 110 will be described later.

The main stage 200 is accommodated in the seat shell 100 and the main stage 200 is provided with a scraper 230 protruding upward from the main stage 200. The main stage 200 is provided with at least one sub-ramp 220, in this embodiment , The main stage 200 is provided with a plurality of identical sub-ramps 220, and the main ramps 110 and the sub-ramps 220 are inclined in opposite directions, and the outer bottom surface of the main stage 200 is provided with obliquely arranged teeth The bar 201 and the rack 201 are arranged parallel to the main ramp 110. At least one set of main sliding tongues 210 is protruded on the outer surface of the main stage 200. In this embodiment, the outer side of the main stage 200 is protrudingly provided with two sets of main slides with the same structural efficiency corresponding to the aforementioned main ramps 110 Tenon 210. Each set of main sliding tenons 210 respectively abuts the corresponding main ramp 110, and each set of main sliding tenons 210 includes a single or multiple main sliding tenons 210 (in this embodiment, two main sliding tenons 210), The number of the main sliding tenons 210 corresponds to the number of horizontal supporting surfaces 111, and each main sliding tenon 210 corresponds to a supporting surface 111 respectively. In the following, only one set of main sliding tongues 210 will be explained. When the main sliding tongues 210 are located on the main ramp 110, the main sliding tongues 210 will follow the main ramp The longitudinal direction of 110 has a plurality of contact points with the main ramp 110, and a plurality of main sliding tongues 210 are supported on the main ramp 110 so that the main stage 200 can avoid rotation and maintain the same posture along the main ramp 110. When the set of main sliding tenons 210 is located on the horizontal support surface 111, the set of main sliding tenons 210 and the set of horizontal supporting surfaces 111 have a plurality of contact points, and the main loading tenons 210 are supported on the horizontal supporting surface 111 to make the main load After entering the horizontal support surface 111, the stage 200 can avoid rotation and maintain the same posture as before. The main stage 200 can move up and down relative to the seat shell 100 along the main ramp slope 110 to move the blade 230 up and down. In this embodiment, specifically, when the set of main slide tenons 210 is located on the main ramp 110, each main slide tenon 210 respectively contacts the main ramp 110, and when the main slide tenon 210 is located on the horizontal support surface 111, each The main sliding tongues 210 respectively contact the corresponding horizontal support surfaces 110.

The sub-stage 300 is accommodated in the main stage 200 and the sub-stage 300 is provided with a protective cover 320 protruding upward from the sub-stage 300, at least a part of the sub-stage 300 abuts the sub-ramp 220; the sub-stage At least one sub-slider 310 is provided on the outer side of the projection 300. In this embodiment, the outer side of the sub-carrier 300 corresponds to the aforementioned sub-slopes 220 and each has a sub-slider 310 with the same structural effect. Each sub-slider 310 abuts the corresponding sub-ramp 220 respectively, and only one of the sub-sliders 310 will be described hereinafter.

The driving assembly 400 is connected to the main stage 200 and can push the main stage 200 to move up and down with respect to the seat shell 100 to move the blade 230 up and down. The blade 230 moves up and down to protrude from the top surface of the seat shell 100 through the opening 102 101. In this embodiment, the driving assembly 400 includes a motor 410 and a gear set 420, the motor 410 is fixed to the housing 100, and the gear set 420 links the motor 410 and the main stage 200 respectively. Specifically, the gear set 420 is connected to the motor 410 and engages the rack 201 on the main stage 200, so the motor 410 can push the main stage 200 up and down along the main ramp 110. When the main stage 200 moves, it simultaneously drives the sub-stage 300 accommodated therein.

The interference structure 120 is disposed in the seat shell 100 corresponding to the sub-carrier 300. In this embodiment, the interference structure 120 is a convex step formed in the seat shell 100, and the upper end of the main ramp 110 faces the interference structure 120 configuration. When the interference structure 120 abuts the moving sub-stage 300, it can block the sub-stage 300 and maintain the horizontal position of the sub-stage 300. Once the main stage 200 continues to move toward the interference structure 120, the interference structure 120 can push the sub stage 300 along the sub ramp 220 relative to the main stage 200 to move the cover 320 up and down, and the cover 320 can move up and down. The top surface 101 of the seat shell 100 protrudes through the opening 102.

Referring to FIGS. 3 to 5, in this embodiment, the top surface 101 of the housing 100 is flush with the molding plane 10 as an example. When the 3D printing device is in operation, the main stage 200 is located at the lower end of the main ramp 110. The sheet 230 is accommodated in the seat shell 100 and below the top surface 101 of the seat shell 100; the sub-stage 300 is located at the lower end of the sub-ramp 220, and the protective cover 320 is accommodated in the main stage 200 and below the top surface 101 of the seat case 100 . Therefore, when the printing operation is performed, the coloring head 20 can be allowed to move beyond the molding plane 10, so the usable space on the molding plane 10 is larger.

When cleaning the coloring head 20, the main stage 200 is driven by the motor 410 to move up along the main ramp 110 toward the interference structure 120, so that the blade 230 exits the top surface 101 of the housing 100. At this time, the sub-stage 300 does not touch the interference structure 120, and the protective cover 320 is still accommodated in the main stage 200 and is located below the top surface 101 of the housing 100. Next, the coloring head 20 is moved to contact the blade 230, and the coloring head 20 is moved to be cleaned.

Referring to FIGS. 6 to 8, after the cleaning is completed, the coloring nozzle 20 moves to the standby position, which corresponds to the position of the interference structure 120. The motor 410 continues to drive the main stage 200 to move along the main ramp 110 toward the interference structure 120. When the sub-stage 300 touches the interference structure 120, it is blocked by the interference structure 120 and stops horizontal displacement. At this time, the protective cover 320 is in the standby position. The motor 410 continues to drive the main stage 200 to move along the main ramp 110 toward the interference structure 120, then the sub stage 300 is pushed by the interference structure 120 toward the upper end of the sub ramp 220, so that the protective cover 320 rises vertically and covers the coloring head 20. And when the set of main sliding tongues 210 moves into the set of horizontal supporting surfaces 111, the set of horizontal supporting surfaces 111 supports the set of main sliding tongues 210 to maintain the protective cover 230 in the raised position.

The head cleaning module of the present invention drives the main stage 200 to move along the inclined path by the motor 410. Since the movement of the inclined path can generate horizontal and vertical components, the vertical component drives the blade 230 to vertically move up and down, and at the same time, the horizontal displacement component of the main stage 200 is converted into a vertical component by the interference structure 120 and the sub-ramp 220 to drive The protective cover 320 moves vertically. Therefore, the nozzle cleaning module of the present invention only requires a single motor 410 to drive the blade 230 and the protective cover 320 to move vertically up and down respectively. And when the main stage 200 moves to the end of the stroke, the horizontal support surface 111 in the main ramp 110 of the seat shell 100 can support the main stage 200, so that the main stage 200 will not move along when it is not powered. The main ramp 110 slips.

Referring to FIG. 9 and FIG. 10, another form of the main sliding tenon is described in detail as follows. The main sliding tenon includes a single diamond-shaped main sliding tenon 210, and the main sliding tenon forms a first bearing at an angle configuration The angle between the surface 211 and a second bearing surface 212, the first bearing surface 211 and the second bearing surface 212 is the same as the angle between the main ramp 110 and the horizontal supporting surface 111. The top of the main ramp 110 forms a single horizontal support surface 111 corresponding to the aforementioned single main sliding tenon 210. When the main sliding tenon 210 is located on the main ramp 110, the first bearing surface 211 is attached to the main ramp 110 by the first The supporting surface 211 is supported by the main ramp 110 so that the main stage 200 can avoid rotation while maintaining the same posture along the main ramp 110. When the main sliding tongue 210 is located on the horizontal support surface 111, the second bearing surface 212 is attached to the horizontal support surface 111, and the second bearing surface 212 is supported on the horizontal support surface 111 so that the main stage 200 can enter the horizontal support surface 111 Avoid rotation and maintain the same posture as before.

The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Other equivalent changes using the patent spirit of the present invention should all fall within the patent scope of the present invention.

100: seat shell

101: top surface

102: opening

110: Main ramp

111: horizontal support surface

120: Interference structure

200: main stage

210: main tenon

220: Sub ramp

230: scraper

300: Sub stage

310: Sliding tenon

320: cover

400: drive assembly

410: Motor

420: Gear set

Claims (13)

A nozzle cleaning module, comprising: a housing, the housing is provided with a main ramp, a part of the main ramp is formed with a set of horizontal support surfaces; a main stage is accommodated in the housing and the main load The platform is provided with a scraper protruding upward from the main carrier, the main carrier is convexly provided with a set of main sliding tenons abutting the main ramp, and the main carrier is provided with a sub ramp, the main carrier It can move the scraper up and down relative to the seat shell along the main ramp, and when the set of main sliding tenons is located on the main ramp, the set of main sliding tenons along the longitudinal direction of the main ramp and the The main ramp has a plurality of contact points. When the set of main sliding mortise is located on the horizontal support surface, the set of main sliding mortise and the set of horizontal support surfaces have a plurality of contact points; a sub-stage, which is accommodated in the main stage And the main carrier moves the sub-carrier at the same time, the sub-carrier is provided with a cover protruding upward from the sub-carrier, at least a part of the sub-carrier abuts the sub-ramp; and an interference The structure corresponds to the configuration of the sub-stage, when the interference structure abuts the moving sub-stage, it can push the sub-stage to move relative to the main stage along the sub-ramp to raise the cover, and when When the group of main sliding tenons moves into the group of horizontal supporting surfaces, the group of horizontal supporting surfaces support the group of main sliding tenons to maintain the cover in the raised position. The nozzle cleaning module as claimed in claim 1, wherein the interference structure is provided within the seat shell. The nozzle cleaning module as described in claim 1 further includes a driving component connected to the main stage and capable of pushing the main stage. The nozzle cleaning module according to claim 3, wherein the driving assembly includes a motor and a gear set, and the gear set respectively links the motor and the main stage. The nozzle cleaning module of claim 4, wherein the main stage has a rack, and the rack engages the gear set. The nozzle cleaning module of claim 5, wherein the rack is parallel to the main ramp. The nozzle cleaning module according to claim 1, wherein the main ramp and the sub ramp are inclined in opposite directions. The nozzle cleaning module according to claim 1, wherein the upper end of the main ramp is disposed toward the interference structure. The nozzle cleaning module according to claim 1, wherein the sub-carrier is convexly provided with a sub-slider that abuts the sub-ramp. The nozzle cleaning module according to claim 1, wherein the scraper blade can move up and down to protrude from the top surface of the housing. The nozzle cleaning module according to claim 1, wherein the protective cover can be raised and lowered to protrude from the top surface of the housing. The nozzle cleaning module according to claim 1, wherein the group of main sliding tenons includes a plurality of cylindrical main sliding tenons, and the set of horizontal supporting breads includes a plurality of horizontal supporting surfaces corresponding to the main sliding tenons respectively, when the group When the main sliding tenons are located on the main ramp, the main sliding tenons respectively contact the main ramp, and when the set of main sliding tenons are located on the horizontal support surface, the main sliding tenons respectively contact the horizontal supporting surfaces. The nozzle cleaning module according to claim 1, wherein the set of main sliding tenons includes a single rhombic main sliding tenon, and the main sliding tenon has a first bearing surface and a second bearing surface arranged at an angle, The set of horizontal supporting breads contains a single horizontal supporting surface corresponding to the main sliding tenon. When the main sliding tenon is located on the main ramp, the first bearing surface is attached to the main ramp, When the set of main sliding tenons is located on the horizontal support surface, the second bearing surface is attached to the set of horizontal support surfaces.

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