CN112848306A

CN112848306A - Automatic reloading device and 3D printer

Info

Publication number: CN112848306A
Application number: CN202110255002.5A
Authority: CN
Inventors: 何显运; 罗瑞贤; 张小东; 罗仕品; 曾明明; 黄广德
Original assignee: Guangdong College of Industry and Commerce
Current assignee: Guangdong College of Industry and Commerce
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-05-28

Abstract

The invention provides an automatic material changing device and a 3D printer, and relates to the field of 3D printing. The automatic material changing device provided by the invention comprises a device bracket, a material rack assembly, a feeding assembly, a guide plate and an inductive switch, wherein the material rack assembly, the feeding assembly and the guide plate are all arranged on the device bracket; the material rack assembly is used for placing a plurality of groups of consumables, and the feeding assembly corresponds to the material rack assembly and is used for conveying the consumables on the material rack assembly to the guide plate; the guide plate is provided with a material channel for consumable materials to pass through, the number of the material channel corresponds to that of the feeding assemblies, the number of the induction switches corresponds to that of the material channel, the induction switches are arranged on the guide plate and are electrically connected with the feeding assemblies and used for detecting whether consumable materials pass through or not, and when no consumable material passes through is detected, the feeding assemblies corresponding to the consumable materials stop running. The embodiment of the invention can realize seamless connection of multiple groups of consumables, is beneficial to forming a closed-loop production system, and achieves the effects of uninterrupted feeding, automatic feeding and the like.

Description

Automatic reloading device and 3D printer

Technical Field

The invention relates to the field of 3D printing, in particular to an automatic material changing device and a 3D printer.

Background

The 3D printing technology is an additive manufacturing technology, and the types of printers are various, and currently, the most common is a printer based on Fused Deposition Modeling (FDM) process. The working process of the printer is that materials are firstly fed through a material rack, the materials are melted into liquid state by high temperature, then the liquid state is extruded by a printing head and then solidified, and finally, three-dimensional objects are formed by being arranged in a three-dimensional space. The material rest is one of the important parts of 3D printer, plays an important effect to the printing effect, is one of the core device that 3D printed. In the printer based on the FDM process, the material used by the spray head of the printer is generally filiform plastic, and the plastic is printed in a liquid state after being melted. However, the material is high in brittleness and is easily affected with damp in the air, so that the silk material is easily broken in the printing process, and meanwhile, the situation that the quantity of the silk material is insufficient is easily met. Therefore, it is difficult to replenish or add the filament material during printing, resulting in a large amount of consumable material being discarded. Although printers capable of pausing and continuing printing are available in the market, slight deviation is often caused after the continuous printing, so that the material extruded by the spray head is insufficient or excessive, and the phenomenon of fault or surface stacking of the model occurs.

The objective shortcomings of the prior art include, but are not limited to:

1) when the 3D printer works for a long time, materials may be exhausted, and cannot be found and replaced by people, so that the product is incompletely printed, and the final product has printing defects and is unqualified.

2) When the residual amount of the printing supplies is small, incomplete printing of the product is caused by worry of material exhaustion in the printing process. Typically, only new printed material can be selected, and the remaining material can be discarded to waste.

3) The 3D printer on the market generally has incomplete continuous printing function of material breakage detection, and the product is easy to form flaws or defects, so that the product is unqualified and even is waste.

4) Many 3D printers simultaneous workings during enterprise's production, for the prevention material exhausts, need special personnel to watch and manage day and night, consume the manpower.

Disclosure of Invention

The invention aims to provide an automatic material changing device and a 3D printer comprising the same, which can realize seamless connection of multiple groups of consumables, are beneficial to forming a closed-loop production system and achieve the effects of feeding continuously, automatic feeding and the like.

Embodiments of the invention may be implemented as follows:

in a first aspect, an embodiment of the present invention provides an automatic material changing device, which is used for automatically changing materials for a 3D printer, and the automatic material changing device includes a device support, a rack assembly, a feeding assembly, a guide plate, and an inductive switch, where the rack assembly, the feeding assembly, and the guide plate are all mounted on the device support;

the material rack assembly is used for placing a plurality of groups of consumables, and the feeding assembly corresponds to the material rack assembly and is used for conveying the consumables on the material rack assembly to the guide plate;

be provided with on the deflector and be used for supplying the material way that the consumptive material passed through, the quantity that the material was said with the pay-off subassembly corresponds, inductive switch's quantity with the material is said and is corresponded, inductive switch set up in on the deflector, and with the pay-off subassembly electricity is connected for whether detect the consumptive material and pass through, and when detecting that no consumptive material passes through, make it correspond pay-off subassembly stall.

Further, in optional embodiment, the stock frame subassembly includes support, pivot and bearing, the support mounting in on the device support to including setting up the multiunit side by side, and each the support is spaced each other, the pivot is passed through the bearing is with adjacent two sets of leg joint, the pivot is used for assembling the consumptive material 3D printer during operation, the pay-off subassembly is used for driving the consumptive material, just the pivot passes through the bearing relatively the support rotates.

Further, in an optional embodiment, the support includes a plurality of sets, and two sets of the bearings and the rotating shaft are placed on the support located at the middle position.

Further, in an alternative embodiment, the plurality of sets of shafts are coaxially disposed.

Further, in an optional embodiment, the feeding assembly includes a feeding motor, a transmission shaft and a transmission wheel, the feeding motor is mounted on the device bracket, the transmission shaft is in transmission connection with the feeding motor, and the transmission wheel is fixed on the transmission shaft and used for driving the consumable to move

Further, in an optional embodiment, the feeding assembly further comprises two groups of synchronous belts, the transmission shafts are connected through the synchronous belts, the synchronous belts are used for enabling the transmission shafts to move synchronously, and the transmission wheels are correspondingly connected with the transmission shafts.

Further, in an optional embodiment, the transmission wheel includes a gear, and the gear is fixedly connected to the transmission shaft and is used for driving the consumable to move.

Further, in an optional embodiment, the feeding assembly further includes a mounting housing, and the transmission shaft and the transmission wheel are both mounted in the mounting housing.

Further, in an optional embodiment, the automatic material changing device further comprises a signal lamp, wherein the signal lamp is arranged on the guide plate, is electrically connected with the inductive switch, and is used for displaying whether the consumable material passes through the material channel.

In a second aspect, an embodiment of the present invention provides a 3D printer, including any one of the automatic material changing devices described above.

The embodiment of the invention provides an automatic material changing device and a 3D printer, wherein the automatic material changing device comprises: the device support is used for installing the material rack assembly, the feeding assembly and the guide plate, the material rack assembly is used for assembling multiple groups of consumables, and the multiple groups of consumables are sequentially arranged on the material rack assembly side by side. The feeding assembly is used for conveying consumables, and the feeding assembly can convey the consumables according to a set feeding sequence. Be provided with the material on the deflector and say, and inductive switch can detect whether have the consumptive material to say through the material. When detecting that no consumable passes through, inductive switch can make the pay-off subassembly stop operation who corresponds with it, has not had the consumable on the work or material rest that this pay-off subassembly corresponds promptly, need continue to transport the consumable from next work or material rest to guarantee that every roll of consumable can both seamless. In the embodiment of the invention, through the matching between the inductive switch and the feeding assembly, the seamless connection of each roll of consumable can be realized, thereby being beneficial to forming a closed-loop production system and achieving the effect of uninterrupted feeding.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.

FIG. 1 is a schematic structural diagram of an automatic refueling apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an automatic refueling device according to another view angle in the embodiment of the present invention.

Icon: 100-automatic material changing device; 110-a device holder; 120-a rack assembly; 121-a scaffold; 122-a rotating shaft; 123-bearing; 130-a feed assembly; 131-a feeding motor; 135-mounting the housing; 140-a guide plate; 141-material channel; 150-an inductive switch; 160-signal lamp.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

The following detailed description of embodiments of the invention refers to the accompanying drawings.

Referring to fig. 1 and fig. 2, the present embodiment provides an automatic material changing device 100, which can implement seamless connection of multiple sets of consumables, and is beneficial to forming a closed-loop production system, so as to achieve the effects of uninterrupted feeding, automatic feeding, and the like.

In the embodiment of the present invention, the automatic material changing device 100 includes a device bracket 121110, a rack assembly 120, a feeding assembly 130, a guide plate 140 and an inductive switch 150, wherein the rack assembly 120, the feeding assembly 130 and the guide plate 140 are all mounted on the device bracket 121110; the material rack assembly 120 is used for placing a plurality of groups of consumables, and the feeding assembly 130 corresponds to the material rack assembly 120 and is used for conveying the consumables on the material rack assembly 120 to the guide plate 140; the guide plate 140 is provided with material channels 141 for consumables to pass through, the number of the material channels 141 corresponds to the number of the feeding assemblies 130, the number of the inductive switches 150 corresponds to the number of the material channels 141, the inductive switches 150 are arranged on the guide plate 140 and electrically connected with the feeding assemblies 130, and the inductive switches are used for detecting whether consumables pass through or not and stopping the feeding assemblies 130 corresponding to the inductive switches when no consumables pass through is detected.

It should be noted that, in the embodiment of the present invention, the automatic material changing device 100 can implement sequential seamless connection of multiple sets of consumables, so as to achieve the effect of uninterrupted feeding and automatic feeding. The device support 121110 is used for mounting the rack assembly 120, the feeding assembly 130 and the guide plate 140, the rack assembly 120 is used for mounting a plurality of sets of consumables, and the plurality of sets of consumables are sequentially arranged side by side on the rack assembly 120. The feeding assembly 130 is used for transporting consumables, and the feeding assembly 130 can transport the consumables according to a set feeding sequence. The guide plate 140 is provided with a material channel 141, and the inductive switch 150 can detect whether consumables pass through the material channel 141. When detecting that no consumable material passes through, the inductive switch 150 can stop the operation of the feeding assembly 130 corresponding to the consumable material, that is, no consumable material is on the material rack corresponding to the feeding assembly 130, and the consumable material needs to be continuously conveyed from the next material rack, thereby ensuring that each roll of consumable material can be seamlessly connected. In the embodiment of the invention, through the matching between the inductive switch 150 and the feeding component 130, the seamless connection of each roll of consumable materials can be realized, thereby being beneficial to forming a closed-loop production system and achieving the effect of uninterrupted feeding.

Meanwhile, it should be noted that in the embodiment of the present invention, the consumables are arranged on the rack assembly 120 side by side, and in actual operation, the consumables can be sequentially fed, so that each roll of material is seamlessly joined. For example, in actual operation, the consumable supplies located at the head may be fed first, the corresponding feeding assembly 130 starts to operate, and the consumable supplies are conveyed into the material channel 141 corresponding to the guide plate 140, and at this time, the inductive switch 150 may detect that the consumable supplies pass through the material channel 141. After working for a period of time, the roll of consumables is used up, and at this time, the inductive switch 150 detects that no consumable passes through, and then the inductive switch 150 communicates with the corresponding feeding assembly 130 to stop feeding the feeding assembly 130; at the same time, the next feeding assembly 130 is also caused to start feeding, thereby achieving seamless joining of the rolls of material.

In an alternative embodiment, the rack assembly 120 includes a support 121, a rotating shaft 122 and a bearing 123, the support 121 is installed on the device support 121110, and includes multiple sets arranged side by side, and each support 121 is spaced from each other, the rotating shaft 122 is connected with two adjacent sets of supports 121 through the bearing 123, the rotating shaft 122 is used for assembling consumables, when the 3D printer works, the feeding assembly 130 is used for driving the consumables, and the rotating shaft 122 rotates relative to the support 121 through the bearing 123.

Further, the bracket 121 includes a plurality of sets, and two sets of bearings 123 and a rotating shaft 122 are disposed on the bracket 121 located at the middle position.

Optionally, multiple sets of shafts 122 are coaxially disposed to make assembly easier and more convenient.

Alternatively, the bearing 123 may be a ball bearing 123 or the like type of bearing 123, and embodiments of the present invention are not particularly limited with respect to the specific type of bearing 123.

In the embodiment of the present invention, the consumables are installed on the rotating shafts 122 side by side, and the consumables are installed on the rotating shafts 122 in parallel, in which four rotating shafts 122 are installed on the bracket 121, the bearings 123 are installed at both ends of the rotating shafts 122, and are installed on the bracket 121. When printing, the feeding component 130 drives the consumables and the shaft to rotate, so that friction force and noise can be reduced under the action of the bearing 123, the feeding stability is improved, and meanwhile, the situation that the consumables are pulled apart in feeding is guaranteed.

In an alternative embodiment, the feeding assembly 130 includes a feeding motor 131, a transmission shaft and a transmission wheel, the feeding motor 131 is mounted on the device support 121110, the transmission shaft is in transmission connection with the feeding motor 131, and the transmission wheel is fixed on the transmission shaft and used for driving the consumable to move

Further, the feeding assembly 130 further includes two sets of timing belts, the two sets of driving shafts are connected by the timing belts, the timing belts are used for synchronizing the two sets of driving shafts, and the driving wheels are correspondingly connected to the two sets of driving shafts.

Optionally, the transmission wheel may be a gear, and the gear is fixedly connected with the transmission shaft and used for driving the consumable to move.

Optionally, the feeding assembly 130 further comprises a mounting housing 135, and the drive shaft and the drive wheel are both mounted within the mounting housing 135.

In an alternative embodiment, the automatic material changing device 100 further includes a signal lamp 160, and the signal lamp 160 is disposed on the guide plate 140 and electrically connected to the inductive switch 150 for displaying whether the consumable material passes through the material channel 141.

The embodiment of the invention also provides a 3D printer which comprises the automatic material changing device 100. This 3D printer is owing to have automatic device 100 that reloads among the above-mentioned arbitrary one, consequently, should have automatic device 100 that reloads' beneficial effect at least, can be in order to realize the seamless connection of multiunit consumptive material, is favorable to forming closed loop production system, reaches the pay-off incessantly, effect such as automatic material conveying to be favorable to improving the efficiency that 3D printed.

The automatic reloading device 100 and the 3D printer provided by the embodiment of the invention are as follows: the device support 121110 is used for installing the rack assembly 120, the feeding assembly 130 and the guide plate 140, the rack assembly 120 is used for assembling a plurality of groups of consumables, and the plurality of groups of consumables are sequentially arranged side by side on the rack assembly 120. The feeding assembly 130 is used for transporting consumables, and the feeding assembly 130 can transport the consumables according to a set feeding sequence. The guide plate 140 is provided with a material channel 141, and the inductive switch 150 can detect whether consumables pass through the material channel 141. When detecting that no consumable material passes through, the inductive switch 150 can stop the operation of the feeding assembly 130 corresponding to the consumable material, that is, no consumable material is on the material rack corresponding to the feeding assembly 130, and the consumable material needs to be continuously conveyed from the next material rack, thereby ensuring that each roll of consumable material can be seamlessly connected. In the embodiment of the invention, through the matching between the inductive switch 150 and the feeding component 130, the seamless connection of each roll of consumable materials can be realized, thereby being beneficial to forming a closed-loop production system and achieving the effect of uninterrupted feeding.

It should be noted that in the description of the present invention, the terms "upper", "lower", "inner", "outer", "left", "right", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship which the product of the present invention is usually placed in when in use, or the orientation or position relationship which is usually understood by those skilled in the art, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

It should also be noted that, in the description of the present invention, unless explicitly stated or limited otherwise, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An automatic material changing device (100) is used for automatically changing materials of a 3D printer, and is characterized in that the automatic material changing device (100) comprises a device support (121) (110), a material rack assembly (120), a feeding assembly (130), a guide plate (140) and an inductive switch (150), wherein the material rack assembly (120), the feeding assembly (130) and the guide plate (140) are all installed on the device support (121) (110);

the material rack assembly (120) is used for placing a plurality of groups of consumables, and the feeding assembly (130) corresponds to the material rack assembly (120) and is used for conveying the consumables on the material rack assembly (120) to a guide plate (140); be provided with on deflector (140) and be used for supplying material way (141) that the consumptive material passed through, the quantity of material way (141) with pay-off subassembly (130) correspond, the quantity of inductive switch (150) with material way (141) correspond, inductive switch (150) set up in on deflector (140) and with pay-off subassembly (130) electricity is connected for whether detect there is the consumptive material to pass through, and when detecting that there is not the consumptive material to pass through, make it correspond pay-off subassembly (130) the shut down.

2. The automatic material changing device (100) according to claim 1, wherein the rack assembly (120) comprises brackets (121), rotating shafts (122) and bearings (123), the brackets (121) are mounted on the device brackets (121) (110) and comprise a plurality of groups arranged side by side, each bracket (121) is spaced from another bracket, the rotating shafts (122) are connected with two adjacent groups of brackets (121) through the bearings (123), the rotating shafts (122) are used for assembling consumables, when the 3D printer works, the feeding assembly (130) is used for driving the consumables, and the rotating shafts (122) rotate relative to the brackets (121) through the bearings (123).

3. The automatic reloading device (100) according to claim 2, characterized in that said support (121) comprises a plurality of groups, and two groups of said bearings (123) and said rotating shaft (122) are placed on said support (121) in the middle position.

4. The automatic reloading device (100) according to claim 2 or 3, wherein said plurality of sets of rotating shafts (122) are coaxially arranged.

5. The automatic reloading device (100) according to claim 1, wherein said feeding assembly (130) comprises a feeding motor (131), a transmission shaft and a transmission wheel, said feeding motor (131) is mounted on said device support (121) (110), said transmission shaft is in transmission connection with said feeding motor (131), said transmission wheel is fixed on said transmission shaft for driving the consumables to move

6. The automatic reloading device (100) as claimed in claim 5, wherein said feeding assembly (130) further comprises two sets of synchronous belts, said two sets of transmission shafts are connected by said synchronous belts, said synchronous belts are used for making said two sets of transmission shafts move synchronously, and said transmission wheels are correspondingly connected with said two sets of transmission shafts.

7. The automatic reloading device (100) according to claim 5 or 6, wherein said transmission wheel comprises a gear wheel, said gear wheel being fixedly connected to said transmission shaft, for moving said consumable.

8. The automatic reloading device (100) as claimed in claim 5, wherein said feeding assembly (130) further comprises a mounting case (135), said transmission shaft and said transmission wheel being mounted in said mounting case (135).

9. The automatic reloading device (100) as claimed in claim 1, wherein said automatic reloading device (100) further comprises a signal lamp (160), said signal lamp (160) is disposed on said guiding plate (140) and electrically connected to said inductive switch (150) for indicating whether said consumable material passes through said material channel (141).

10. 3D printer, characterized in that it comprises an automatic reloading device (100) according to any of claims 1 to 9.