WO2023125920A1 - Power device, printing consumable conveyor, and 3d printer - Google Patents

Abstract

Provided in the invention are a power device, a printing consumable conveyor, and a 3D printer. The power device is used for driving consumables to move. The power device comprises a power member, a material pressing unit, and a pressure relief member. The consumable is located between the power member and the material pressing unit. The material pressing unit is used for clamping the consumable with the power member under the action of external force. The power member is used for driving the clamped consumable to move. The pressure relief member is connected to the material pressing unit. When the pressure of the material pressing unit on the consumable is greater than a preset value, the pressure relief member is used for enabling the material pressing unit to move in the direction away from the power member. In the power device of the present application, an appropriate force can be exerted on the consumable, thereby preventing excessive force of clamping the consumable by the material pressing unit and the power member, and prolonging the service life of the power device.

Description

Power units, printing filament conveyors and 3D printers technical field

This application belongs to the technical field of three-dimensional printing, and specifically relates to a power device, a conveyor for printing consumables and a 3D printer.

Background technique

3D printer, also known as 3D printer (3DPrinter, 3DP), is a machine based on rapid prototyping technology. Layers of bonding material to create three-dimensional objects.

The 3D printer includes an extruder, which is a conveyor for printing filaments, which relies on two devices to clamp the filaments, one of which can be rotated to drive the filaments to move. In the existing extruder, after the structure of the device is determined, the clamping force on the consumables is certain. If the clamping force is too large, it will affect the consumables, and even cause damage to the device for clamping the consumables, affecting extrusion. Machine life.

Utility model content

Therefore, the technical problem to be solved in this application is to provide a power unit, a printing consumable conveyor and a 3D printer, wherein the power unit can use consumables of different colors or materials for printing, or replace the consumables after one consumable is used up Proceed to print.

In order to solve the above problems, the present application provides a power device for driving consumables to move, the power device includes a power part, a pressing unit and a pressure relief part, and the consumables are located between the power part and the Between, the pressing unit is used to clamp the consumables with the power part under the action of external force; the power part is used to drive the clamped consumables to move; the pressure relief part and the pressure The material unit is connected, and when the pressure of the material pressing unit on the consumable is greater than a preset value, the pressure relief member is used to make the material pressing unit move away from the power member.

Optionally, the pressing unit includes a pressing member and a first elastic member, the consumable is located between the power member and the pressing member, and the first elastic member is arranged close to the pressing member On one side of the power part, the pressing part is connected to the pressure relief part. When the pressing part moves towards the power part, the first elastic part exerts pressure on the pressing part away from the pressure relief part. The elastic force of the power part.

Optionally, the pressure relief member includes a second elastic member and a pressure relief slider, the pressure relief slider is respectively connected to the pressing unit and the second elastic member, and the pressure relief slider is arranged on The side of the second elastic member facing the power member, the pressure relief slider is limited to move in a direction intersecting the moving direction of the consumable, and the second elastic member passes through the pressure relief slider to move The pressing unit exerts an elastic force toward the side where the power element is located.

Optionally, the pressing member includes a pressing pulley and a pressing plate, the pressing pulley is arranged on the pressing plate, the pressing pulley is arranged opposite to the power part, and the consumables are located on the pressing plate. Between the power part and the pressing pulley; the pressing plate includes a first end and a second end, the pressure relief member is arranged on the second end, and the first end of the pressing plate is at the Under the action of external force, the pressing pulley and the power part clamp the consumable; the power device also includes a connecting shaft, the connecting shaft runs through the pressing plate, and the connecting shaft and the pressure relief part connect.

Optionally, the pressing unit includes at least two, the number of the consumables corresponds to the number of the pressing units, the pressing units are set corresponding to the consumables, and at least two of the pressing units are Connected with the pressure relief member, the pressing unit can be selectively contacted with the consumable, so that the power member and the selected pressing unit can clamp the consumable.

Optionally, the power device further includes a pusher, the pusher is arranged on the side of the presser plate away from the presser pulley, the pusher and the first elastic member are arranged on the side of the presser plate On the first end of the material plate, the pusher can selectively drive the pressing unit to move, so that the pressing unit and the power member can clamp the consumable, or make the consumable and the press The material unit is separated.

Optionally, the pusher includes a plurality of cams, the cams are set corresponding to the pressing plate, and when the cams are rotated to a set position, they can drive the corresponding pressing plate to cooperate with the power member Clamping the consumables; the power device further includes a rotating unit, the rotating unit includes a drive shaft, the cam is arranged on the drive shaft, the cam is arranged along the axial direction of the drive shaft and rotates synchronously The protruding parts of the plurality of cams are sequentially arranged with preset angles staggered along the rotation direction of the drive shaft.

Optionally, the drive shaft includes a first end and a second end, among the plurality of cams on the drive shaft, the cam closest to the first end is a first cam, and the distance from the second end is The nearest cam is the second cam, and the minimum angle formed by the first cam and the second cam along the rotation direction of the drive shaft is larger than the preset angle.

Another aspect of the present application provides a printing consumable conveyor, including the above-mentioned power device; the printing consumable conveyor further includes a control module, and the control module is electrically connected to the power device.

Another aspect of the present application provides a 3D printer, including the above-mentioned power device or the above-mentioned printing consumable conveyor.

Beneficial effect

The technical solution provided in the embodiment of the utility model, the power device is used to drive the consumables to move, the power device includes a power part, a pressing unit and a pressure relief part, the consumables are located between the power part and the pressing unit, and the pressing unit is used for The consumables are clamped with the power part under the action of external force; the power part is used to drive the clamped consumables to move; the pressure relief part is connected with the pressing unit, when the pressure of the pressing unit on the consumables is greater than the preset value, the pressure relief part is used In order to make the pressing unit move away from the power part, the pressure relief part can reduce the force of the pressing unit and the power part to clamp the consumables, prevent the consumables from being crushed, and at the same time reduce the force on the power part and the pressing unit. The service life of the power unit is increased.

Description of drawings

Fig. 1 is the explosion diagram of the power plant of the embodiment of the present application;

Fig. 2 is a schematic cross-sectional view of a power plant according to an embodiment of the present application;

Fig. 3 is the explosion schematic diagram of the pressing unit of the embodiment of the present application;

Fig. 4 is a schematic diagram of the first three-dimensional structure of the pressing unit and the pressure relief member in the explosion state according to the embodiment of the present application;

Fig. 5 is a schematic diagram of the second three-dimensional structure of the pressing unit and the pressure relief part in the explosion state according to the embodiment of the present application;

FIG. 6 is a schematic diagram of a three-dimensional structure of a pusher according to an embodiment of the present application;

Fig. 7 is a side view of the pusher of the embodiment of the present application.

The reference signs are indicated as:

1. Consumables; 2. Power parts; 21. Power wheels; 22. First motor; 3. Pressing unit; 31. Pressing parts; 311. Pressing pulleys; 312. Pressing plates; 32. First elastic parts ;4, pressure relief piece; 41, second elastic piece; 42, pressure relief slide block; 5, push piece; 51, cam; 6, rotation unit; 61, drive shaft; 7, feed roller; Switch; 9, feed channel.

Detailed ways

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", Orientation indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation , so it cannot be interpreted as a limitation of the present utility model.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In this utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

Referring to Fig. 1 to Fig. 7, according to the embodiment of the present application, a power device can be applied to the printing consumables conveyor, or used alone. The power device is used to drive the consumables 1 to move, and the power device includes a power part 2, The pressing unit 3 and the pressure relief member 4, the consumable 1 is located between the power part 2 and the pressing unit 3, the pressing unit 3 is used to clamp the consumable 1 with the power part 2 under the action of external force; the power part 2 is used to drive the driven The clamped consumable 1 moves; the pressure relief member 4 is connected to the pressing unit 3, and when the pressure of the pressing unit 3 on the consumable 1 is greater than a preset value, the pressure relief member 4 is used to make the pressing unit 3 move away from the power member 2 direction to move.

The pressure relief part 4 can reduce the clamping force of the pressing unit 3 and the power unit 2 to prevent the consumable 1 from being crushed, and at the same time reduce the force on the power unit 2 and the pressing unit 3, increasing the service life of the power device , to ensure the stability of the power plant.

The structure of the power part 2 is not limited, and the power part 2 may include a motor and other devices, which can be directly or indirectly driven to drive the consumables 2 to move.

Wherein, the quantity of the pressing unit 3 is not limited. When there are multiple pressing units 3 , the number of consumables 1 corresponds to the number of pressing units 3 . In this embodiment, the pressing unit 3 may include at least two, the pressing unit 3 is arranged corresponding to the consumable 1, and at least two pressing units 3 are connected to the pressure relief member 4, and the pressing unit 3 can be selectively connected with the consumable 1 contact, so that the power part 2 and the selected pressing unit 3 clamp the consumables. In the present application, the pressing unit 3 can be selectively contacted with the consumable 1 , that is, one of the pressing units 3 can be selected to be in contact with the consumable 1 as required.

Among them, the power part 2 can include two working states. When the power device is in the first working state, the power part 2 drives the clamped consumables 1 to move in the first direction; when the power device is in the second working state, the power part 2 drives The clamped consumables 1 move in the second direction.

By setting the power part 2 and at least two pressing units 3, and making the pressing unit 3 correspond to the consumable material 1, the pressing unit 3 can be selected according to the demand, and the corresponding consumable 1 can be clamped between the pressing unit 3 and the power part. 2, and then in the first working state, it can drive the clamped consumables 1 to move in the first direction, and in the second working state, it can drive the clamped consumables 1 to move in the second direction. When entering the first working state again, the consumable 1 can be selected again according to the demand, and the consumable 1 can be clamped by the pressing unit 3 and the power part 2 corresponding to the consumable 1 and moved to the first direction, so that the same device can drive different colors Or the consumables 1 of different materials can be printed, and switching can be realized, which expands the scope of use.

Specifically, for example, when switching printing between red consumables and blue consumables, in the power device of the present application, the two pressing units 3 are set corresponding to the red consumables and blue consumables respectively, and the red consumables are selected to push out printing according to requirements. When switching, Return the red filament, then push the blue filament out to print. In this application, when a consumable 1 is used up, the power device can also drive the same consumable 1 to move, thereby realizing continuous printing of the same consumable 1, avoiding manual frequent filling of a single consumable 1 after use, and reducing labor. workload. For example, the two pressing units 3 correspond to the same consumable 1, and when one of the consumables 1 is about to run out, the consumable 1 can be returned, and then the other consumable 1 can be pushed out to realize continuous printing of the same consumable 1.

Wherein, the first working state is the feeding working state of the power device. When the power device is in the feeding working state, it drives the consumables 1 to be discharged from the printing consumables conveyor to the print head. The first direction is the direction in which filament 1 feeds the printing filament conveyor. In the material return working state of the power device in the second working state, when the power device is in the material return working state, it drives the consumables 1 to return to the printing consumables conveyor. The second direction is the direction in which the consumables 1 return to the printing consumables conveyor.

Wherein, when there are multiple pressing units 3, the multiple pressing units 3 are arranged side by side, and the consumables 1 and the pressing units 3 are arranged correspondingly, specifically one-to-one correspondence, and each consumable 1 can be arranged side by side.

Wherein, the pressing units 3 can be arranged parallel to each other, so that the consumables 1 can be fed or returned in the same direction.

Wherein, the power part 2 provides power for the movement of the consumable 1, and the pressing unit 3 clamps the consumable 1 between the power part 2 and the pressing unit 3, and the movement of the power part 2 drives the consumable 1 to move.

Specifically, the power part 2 may include a power wheel 21 and a first motor 22, wherein the power wheel 21 is in contact with the consumable 1, and the rotation of the power wheel 21 drives the consumable 1 to move. The power wheel 21 may be a roller, a roller, etc., and the power The wheel 21 can also be a plurality of synchronously rotated separate wheels, which can drive the consumables 1 to move, which is not limited here. The motor shaft of the first motor 22 is connected with the power wheel 21 to drive the power wheel 21 to rotate, and then to drive the consumables 1 to move.

Optionally, the number of power elements 2 may be one or at least two, and the number of power elements 2 is not limited here. When the number of power parts 2 is at least two, one of the power parts 2 corresponds to at least one pressing unit 3, and the other power part 2 corresponds to at least one pressing unit 3, for example, the power part 2 and the pressing unit 3 One-to-one correspondence settings. In this embodiment, the number of the power part 2 is one, that is, the power part 2 includes a power wheel 21 and a first motor 22, and the length direction of the power wheel 21 is the same as the arrangement direction of the pressing unit 3. 21 can drive the clamped consumables 1 to move, the first motor 22 is connected with the power wheel 21 in the axial direction, and is used to drive the power wheel 21 to rotate forward or reverse, and then to drive the consumables 1 to move in the first direction or Move in the second direction.

The power device also includes a pusher 5, the pusher 5 can selectively drive the pressing unit 3 to move, so that the pressing unit 3 and the power member 2 can clamp the consumable 1, or separate the consumable 1 from the pressing unit 3, by setting the push The component 5 can realize selective clamping of required consumables 1 and realize selective printing of consumables 1 of different colors or different materials.

Wherein, the pushing member 5 can selectively contact the pressing unit 3, and drive the contacting pressing unit 3 to move toward the power part 2, or the pushing member 5 can selectively drive the pressing unit 3 to move toward the power part 2, so that the pressing unit 3 can move toward the power part 2. The material unit 3 and the power part 2 clamp the consumable 1. The pushing member 5 can selectively drive the pressing unit 3 to move, that is, the pushing member 5 can selectively contact with one of the pressing units 3 and drive the pressing unit 3 to move to the power member 2 as required.

Wherein, the pushing member 5 can be arranged on the side of the pressing unit 3 away from the power unit 2 , and then push the pressing unit 3 to move toward the power unit 2 .

Among them, when just entering the feeding working state, the pusher 5 drives the pressing unit 3 to move to the power unit 2, so as to clamp the corresponding consumables 1 between the power unit 2 and the pressing unit 3, and then the power unit 2 drives Consumable 1 moves. When in the working state of feeding or returning the working state, the pusher 5 keeps the pressing unit 3 at the position of clamping the consumables 1 . When exiting the working state of feeding and returning, the pressing unit 3 follows the pusher 5 and moves away from the consumable 1, so that the consumable 1 is separated from the power part 2, so that the power part 2 no longer drives the consumable 1 move.

The pressing unit 3 includes a pressing piece 31 and a first elastic piece 32, the consumable 1 is located between the power piece 2 and the pressing piece 31, the first elastic piece 32 is arranged on the side of the pressing piece 31 close to the power piece 2, and the pressing The material part 31 is connected with the pressure relief part 4 , and when the pressure material part 31 moves toward the power part 2 , the first elastic part 32 exerts an elastic force on the pressure part 31 away from the power part 2 .

By arranging the pressing member 31, the consumable 1 can be pressed stably; by arranging the first elastic member 32, when the pushing member 5 moves away from the consumable 1, the pressing member 31 can be pushed to keep in contact with the pushing member 5, so that As the pusher 5 moves away from the consumable 1 , the pressing member 31 is kept separated from the consumable 1 when the consumable 1 is not driven to move.

Optionally, the first elastic member 32 is a spring, the first end of the spring is connected or abutted on a mounting carrier, the mounting carrier and the first end of the spring remain relatively stationary, and the second end of the spring is connected or abutted on the The pressing part 31 is close to the side of the power part 2 . The mounting carrier provides a fixed support for the first end of the spring, and it only needs to keep the first end stationary, and the mounting carrier is not limited here.

Wherein, the first elastic member 32 may be disposed opposite to the push member 5 . The first elastic member 32 is located on one side of the pressing member 31 , and the pushing member 5 is located on the other side of the pressing member 31 .

Wherein, the pressure relief member 4 can be arranged on the side of the pressing member 31 close to the pushing member 5 , or can be arranged on the side of the pressing member 31 close to the power member 2 . In this embodiment, the pressure relief member 4 is arranged on the side of the pressing member 31 close to the pusher 5, that is, the pressure relief member 4 is arranged on the side of the pressing member 31 away from the power member 2, so that the pressing member 31 can supply the consumable 1 is more stable.

The pressure relief member 4 includes a second elastic member 41 and a pressure relief slider 42. The pressure relief slider 42 is respectively connected to the pressing member 31 and the second elastic member 41 of the pressing unit 3. The pressure relief slider 42 is arranged on the second The side of the elastic member 41 facing the power member 2, the pressure relief slider 42 is limited to move in a direction intersecting the moving direction of the consumable 1, and the second elastic member 41 presses the pressing unit 3 through the pressure relief slider 42 The material part 31 exerts an elastic force towards the side where the power part 2 is located.

By setting the second elastic member 41, the preset value can be set according to the elastic coefficient of the second elastic member 41. When the pressure of the pressing member 31 of the pressing unit 3 on the consumable 1 is greater than the preset value, the pressing force of the pressing unit 3 The material part 31 pushes the pressure relief slider 42 to compress the second elastic part 41, that is, the pressure material part 31 moves away from the consumable material to realize pressure relief, so as to prevent the pressure material 31 of the pressure material unit 3 from being too large on the consumable material 1, resulting in The consumable 1 or the power part 2 and the pressing part 31 of the pressing unit 3 are damaged. By limiting the pressure relief slider 42 to move in a direction intersecting the movement direction of the consumable 1, the pressing member 31 of the pressing unit 3 can be stably pressed down, and the preset value can be guaranteed to be stable, avoiding the pressure relief slider. The different moving directions of 42 cause the preset value to change.

Wherein, the pressure relief slider 42 can be rotatably arranged on the pressing member 31. Specifically, the power device also includes a connecting shaft (not shown in the figure), the connecting shaft passes through the pressing member 31, and the two ends of the connecting shaft can be connected with A pressure relief slider 42 is rotatably connected to maintain a stable connection between the pressure relief slider 42 and the pressing member 31 when the pressure relief slider 42 moves. It can be understood that the connecting shaft can also be rotatably connected with the pressing member 312 .

Wherein, the pressure relief slider 42 is connected with the pressing member 31 in the pressing unit 3, the pressure relief slider 42 can be roughly a cuboid, and the second elastic member 41 is connected to the outer wall of the pressure relief slider 42 away from the consumable 1 side .

Wherein, the second elastic member 41 may be a spring.

Wherein, the first end of the second elastic member 41 is fixed on an installation carrier, and the first end of the second elastic member 41 and the first end of the second elastic member 41 remain relatively stationary, and the second end of the second elastic member 41 is connected to the limit slider superior.

The mounting carrier provides fixed support for the first end of the second elastic member 41 and only needs to keep the first end stationary, and the mounting carrier is not limited here. Specifically, when the power device is applied to a printing consumable conveyor, the installation carrier may be a casing of the printing consumable conveyor.

Wherein, the pressure relief slider 42 can be slidably arranged in the slideway of the installation carrier, and the movement of the pressure relief slider 42 in a direction intersecting with the moving direction of the consumables 1 is restricted by setting the slideway. Specifically, in this embodiment, the sliding direction of the pressure relief slider 42 is perpendicular to the moving direction of the consumables 1 .

The pressing member 31 includes a pressing pulley 311 and a pressing plate 312, the pressing pulley 311 is arranged on the pressing plate 312, the pressing pulley 311 is connected to the pressing plate 312 in rotation, the pressing pulley 311 is arranged opposite to the power part 2, The consumable material 1 is located between the power part 2 and the pressing pulley 311, and the pusher 5 is arranged on the side of the pressing plate 312 away from the pressing pulley 311;

The pressing plate 312 includes a first end and a second end, the pusher 5 and the first elastic member 32 are arranged on the first end, the pressure relief member 4 is arranged on the second end, and the first end of the pressing plate 312 is subjected to an external force. Under the action, that is, under the action of the pusher 5 , the pressing pulley 311 and the power member 2 clamp the consumable 1 .

By setting the pressing pulley 311, rolling friction can be formed between the pressing member 31 and the consumable material 1, thereby improving the service life of the pressing member 31, and at the same time ensuring that the consumable material 1 is not scratched and damaged, and that the consumable material 1 is easier to be damaged. drive.

Wherein, the connecting shaft runs through the binder plate 312 , one end of the connecting shaft is rotatably connected to the pressure relief slider 42 of one pressure relief component 4 , and the other end of the connection shaft is rotatably connected to the pressure relief slider 42 of the other pressure relief component 4 . It can be understood that, when multiple binder units 3 are included, the connecting shaft may pass through the binder plates 312 of the multiple binder units 3 .

Wherein, the pressing pulley 311 can be arranged opposite to the power part 2 in a direction perpendicular to the consumable 1 , so as to ensure the clamping of the consumable 1 .

Wherein, the pushing member 5 can push the pressing plate 312 toward the consumable 1 , and then make the pressing pulley 311 and the power member 2 clamp the consumable 1 .

Wherein, the binder plate 312 includes a flat section and a protruding section, the limit slider, the first elastic member 32 and the pusher 5 are in contact with the flat section, the protruding section is in contact with the flat section, and the protruding section protrudes beyond the flat section towards the power part 2 The pressing pulley 311 is rotatably arranged on the protruding section, so as to ensure that the pressing pulley 311 can rotate stably and at the same time ensure good contact with the power part 2 .

Optionally, the pressing pulley 311 can be arranged between the first end and the second end, the pushing member 5 and the first elastic member 32 are arranged on the first end, and the pressure relief member 4 is arranged on the second end, It is possible to simultaneously press down from both ends of the pressing plate 312 to ensure uniform distribution of the down pressure. When the downward force is greater than the preset value, the pusher 5 presses down from the first end, and the second end of the pressing plate 312, thereby making the pressure relief member 4 slide upwards, which can realize pressure relief stably and prevent crushing parts and components. consumables1.

The pusher 5 includes a plurality of cams 51, and the cams 51 and the clamping plates 312 are set correspondingly. If there is a one-to-one correspondence, when the cams 51 rotate to the set positions, they can drive the corresponding clamping plates 312 to cooperate with the power component 2 to clamp consumables. 1. The power device also includes a rotating unit 6, the rotating unit 6 includes a drive shaft 61, the cam 51 is arranged on the drive shaft 61, the cams 51 are arranged along the axial direction of the drive shaft 61 and rotate synchronously, and the protrusions of the plurality of cams 51 are along the The rotation direction of the drive shaft 61 is sequentially set with a predetermined angle staggered. By arranging the protruding parts of the cam 51 alternately along the circumferential direction of the drive shaft 61 , the consumables 1 can be selectively driven to move, and suitable consumables 1 can be selected according to requirements. By arranging the protruding parts of the cam 51 along the rotation direction of the driving shaft 61 at a preset angle, one of the cams 51 can drive the pressing member 31 to press down the consumable material 1 every time the driving shaft 61 rotates by a preset angle. , by controlling the driving shaft 61 to rotate a multiple of a preset angle, it is possible to selectively drive the consumables 1 to move.

Wherein, the set position is the position where the cam 51 just comes into contact with the corresponding pressing plate 312 and starts to drive the corresponding pressing plate 312 to move toward the consumable 1 . The setting position can be set by setting the size of the protrusion and the preset angle between adjacent cams 51 .

Wherein, the protruding part is the radially outward protruding part of the cam 51, and when the protruding part comes into contact with the clamping plate 312, it drives the clamping plate 312 to move, so that the clamping pulley 311 and the power part 2 press the consumable 1 . When the protruding part is separated from the pressing plate 312 , the pressing pulley 311 is separated from the consumable 1 .

Wherein, all cams 51 are coaxially arranged. Viewed from the axial direction, the protrusions of the cams 51 are sequentially staggered by a preset angle along the rotation direction of the cams 51 .

Optionally, the rotating unit 6 includes a second motor, the drive shaft 61 is coaxially connected with the motor shaft of the second motor, and the drive shaft 61 may also be the motor shaft of the second motor. The drive shaft 61 can be rotated to drive the cam 51 to rotate. The drive shaft 61 includes a first end and a second end. Among the plurality of cams 51 on the drive shaft 61, the cam 51 closest to the first end is the first cam, and the cam 51 closest to the second end is the second cam. The minimum angle formed by the first cam and the second cam along the rotation direction of the drive shaft 61 is larger than the preset angle, and a protruding section without the cam 51 can be formed in the circumferential direction of the push member, that is, the circumferential direction of the drive shaft 61. The blank area at the top can be used as the starting point or the ending point for the rotation of the pusher. When the blank area faces the clamping plate 312, the protruding parts of the cams 51 do not drive the clamping plate 312 to the clamping position for clamping the consumable 1. At this time, the consumable 1 can be manually put into the cam 51 and the power part 2 between.

Wherein, take the plane perpendicular to the central axis of the drive shaft 61 as the projection plane, in the projection of the first cam on the projection plane, the center line of the protrusion of the first cam is a, and the projection of the second cam on the projection plane Among them, the center line of the protruding portion of the second cam is b, and the smallest angle among the angles formed by a and b is the smallest angle between the first cam and the second cam along the rotation direction of the drive shaft 61 . It can be understood that the preset angle is the angle formed by the centerlines of the two protrusions in the projection of adjacent cams 51 on the projection plane.

In this embodiment, taking five cams 51 as an example, the protrusions of adjacent cams 51 are staggered by 60° along the rotation direction of the drive shaft 61 , that is, the preset angle is 60°. The included angle between the first cam and the second cam along the rotation direction of the drive shaft 61 is 120°. Starting from the blank area formed by the first cam and the second cam in the circumferential direction of the drive shaft 61 , switching between different consumables 1 can be achieved every time the drive shaft 61 rotates 60°.

Another aspect of this embodiment provides a conveyor for printing consumables, including the above-mentioned power device. The conveyor for printing consumables also includes a control module, which is electrically connected to the power device. The control module can be used to control the power device according to The preset sequence drives the consumables 1 to move in sequence, that is, the control module selects the pressing unit 3 according to the preset order, so that the selected pressing unit 3 is in contact with the consumables 1, so that the same printing consumable conveyor can drive different colors or The consumables 1 of different materials are printed and switched, which expands the scope of use. It is also possible to drive the same consumables 1 to move, thereby achieving continuous printing of the same consumables 1, avoiding manual frequent filling of a single consumable 1 after use, and reducing the manual workload.

Among them, the order in which the consumables 1 are conveyed is preset through the control module, that is, the preset order, and the drive shaft 61 is controlled to rotate according to the preset order, so as to select the pressing unit 3 according to the preset order, and through the pressing unit 3 and the power part 2 to drive the corresponding consumables 1 to print.

Wherein, in order to facilitate switching, the consumables 1 to be used can be arranged sequentially according to a preset order. For example, first use the red filament to print, and then use the blue filament to print, the red filament can be placed on the position corresponding to the leftmost cam 51, and then the blue filament can be placed on the corresponding position of the second cam 51 on the left . Taking the preset angle of 60° as an example, the driving shaft 61 can be rotated by 60° to switch between red consumables and blue consumables.

Wherein, the power device can also switch the consumables 1 arranged at intervals. For example, print with red filament first and then with blue filament. Among them, the red consumables are placed on the position corresponding to the leftmost cam 51, the blue consumables are placed on the corresponding position of the third cam 51 on the left, and the corresponding position of the second cam 51 on the left is not used. yellow supplies. When the red consumable is switched to the blue consumable, the control module controls the power part 2 to stop rotating. Taking the preset angle as 60° and the number of cams 51 as five as an example, after the drive shaft 61 rotates 60°, because the power part 2 stops Turn, the yellow consumables will not be driven out. After the drive shaft 61 rotates 60° again, that is, after the drive shaft 61 rotates 120° compared to when printing with red consumables, the third cam 51 on the left drives the corresponding pressing unit 3 to clamp the blue consumables on the pressing unit Between 3 and the power part 2, the control module controls the rotation of the power part 2 to drive the blue consumables to be sent out, thus realizing the switching between the red consumables and the blue consumables. It is easy to understand that the rotation of the driving shaft 61 by 180° or 240° can realize the switching of consumables 1 set at intervals. The consumables 1 conveyed first are not necessarily the consumables 1 corresponding to the leftmost cam 51 , and can be flexibly adjusted according to the preset sequence.

Wherein, the printing consumables conveyor also includes a feeding channel 9 through which the consumables 1 enter the printing consumables conveyor, and the power device is arranged on the feeding channel 9 .

Wherein, there are multiple feeding channels 9 , and the feeding channels 9 are set in one-to-one correspondence with the consumables 1 , that is, one consumable 1 enters the printing consumables conveyor through one feeding channel 9 .

Wherein, each feeding channel 9 is provided with a feeding roller 7, and the side of the feeding roller 7 away from the feeding channel 9 is provided with a feeding switch 8, and the feeding switch 8 is electrically connected with the control module.

Define the end of the consumable 1 that first enters the feed channel 9 as the head end, and the end that enters the feed channel 9 as the consumable 1 is sent out as the end. It should be noted that the head end of the consumable 1 will be consumed and cut, but Ends deemed to be consumed or trimmed remain head ends.

When the power device is in the first working state and the consumable material 1 passes through the feed roller 7, the consumable material 1 pushes the feed roller 7, triggers the feed switch 8 to send a feed signal. After the control module receives the feed signal from the feed switch 8 corresponding to all the consumables 1 in the preset sequence, or after receiving the feed signal from the feed switch 8 corresponding to the first consumable 1 in the preset sequence, The control module controls the power unit to drive the first consumable 1 in the preset sequence to move to realize material feeding.

When the power device is in the first working state, and the end of the consumable 1 passes through the feed roller 7, the feed roller 7 triggers the feed switch 8 to convert the feed signal into a feed cut signal, and the control module receives the feed cut signal , the power plant can be controlled to enter the second working state.

When the power device is in the second working state, and the head end of the consumable 1 passes through the feed roller 7, the feed roller 7 triggers the feed switch 8 to convert the feed signal into a feed cut signal, and the control module receives the feed cut signal After receiving the signal, the consumables 1 can be switched according to the preset order, and then the power unit can be controlled to enter the first working state again, or the power unit can be controlled to stop running.

By setting the feed roller 7 and the feed switch 8, in cooperation with the control module, the switch between the first working state and the second working state can be realized, and then the switching of consumables 1 of different colors or different materials and the consumables 1 of the same kind can be realized. Continuous printing.

Optionally, the feed roller 7 is located below the consumable 1, and the feed switch 8 is located below the feed roller 7. When the consumable 1 passes through the feed roller 7, the consumable 1 pushes the feed roller 7 downward, thereby causing the The feed roller 7 touches the extrusion feed switch 8, and then the feed switch 8 sends a feed signal. When the power device is in the second working state and the head end of the consumable 1 passes through the feeding roller 7, or when the power device is in the first working state and the end passes through the feeding roller 7, the consumable 1 is no longer The feed roller 7 exerts pressure, and the feed roller 7 no longer applies pressure to the feed switch 8, triggering the feed switch 8 to be converted from a feed signal to a feed cut signal.

Another aspect of this embodiment provides a 3D printer, including the above-mentioned power device or the above-mentioned printing consumable conveyor.

Example

Fig. 1 is an exploded view of the power unit of the embodiment of the present application; Fig. 2 is a third cross-sectional view of the power unit of the embodiment of the present application; Fig. 3 is an exploded view of the binder part 31 of the embodiment of the present application; Fig. 4 is the embodiment of the present application A schematic diagram of the first three-dimensional structure of the pressing member 31 of the embodiment of the application; FIG. 5 is a schematic diagram of the second three-dimensional structure of the pressing member 31 of the embodiment of the application; FIG. 6 is a schematic diagram of the three-dimensional structure of the pusher 5 of the embodiment of the application; Fig. 7 is a side view of the pusher 5 according to the embodiment of the present application.

As shown in Figures 1 to 7, this embodiment provides a power device for driving consumables 1 to move. The power device includes a power part 2, a pressing unit 3 and a pressure relief part 4. The consumables 1 are located between the power part 2 and the pressure relief part 4. Between the pressing unit 3, the pressing unit 3 is used to clamp the consumable 1 with the power part 2 under the action of an external force; the power part 2 is used to drive the clamped consumable 1 to move; the pressure relief part 4 is connected to the pressing unit 3 , when the pressure of the pressing unit 3 on the consumable 1 is greater than a preset value, the pressure relief member 4 is used to move the pressing unit 3 away from the power member 2 .

Wherein, the pressing unit 3 includes a pressing member 31 and a first elastic member 32, the consumable material 1 is located between the power member 2 and the pressing member 31, and the first elastic member 32 is arranged on the side of the pressing member 31 close to the power member 2 , the pressing member 31 is connected with the pressure relief member 4 , when the pressing member 31 moves toward the power member 2 , the first elastic member 32 exerts an elastic force on the pressing member 31 away from the power member 2 .

Wherein, the pressure relief member 4 includes a second elastic member 41 and a pressure relief slider 42, the pressure relief slider 42 is respectively connected with the pressing member 31 and the second elastic member 41, and the pressure relief slider 42 is arranged on the second elastic member 41 On the side facing the power part 2 , the pressure relief slider 42 is limited to move in a direction intersecting the moving direction of the consumable 1 , and the second elastic part 41 exerts pressure on the pressing part 31 towards the power part 2 through the pressure relief slider 42 . The elastic force on the side.

Wherein, the pressing part 31 includes a pressing pulley 311 and a pressing plate 312, the pressing pulley 311 is arranged on the pressing plate 312, the pressing pulley 311 is arranged opposite to the power part 2, and the consumable 1 is located between the power part 2 and the pressing pulley. 311; the pressing plate 312 includes a first end and a second end, the pressure relief member 4 is arranged on the second end, and the first end of the pressing plate 312 clamps the pressing pulley 311 and the power part 2 under the action of external force The consumable 1; the power device also includes a connecting shaft, which runs through the clamping plate 312, and is connected to the pressure relief member 4.

Wherein, the pressing unit 3 includes at least two, the quantity of the consumable 1 corresponds to the quantity of the pressing unit 3, the pressing unit 3 is set corresponding to the consumable 1, at least two pressing units 3 are connected with the pressure relief member 4, and the pressing unit 3 is connected to the pressure relief member 4. The material unit 3 can be selectively contacted with the consumable material 1 , so that the power member 2 and the selected pressing material unit 3 can clamp the consumable material 1 .

Wherein, the power device also includes a pusher 5, the pusher 5 is arranged on the side of the hold-down plate 312 away from the hold-down pulley 311, the pusher 5 and the first elastic member 32 are arranged on the first end of the hold-down plate 312, push The part 5 can selectively drive the pressing unit 3 to move, so that the pressing unit 3 and the power part 2 clamp the consumable 1 or separate the consumable 1 from the pressing unit 3 .

Wherein, the pusher 5 includes a plurality of cams 51, and the cams 51 are arranged corresponding to the clamping plate 312. When the cam 51 rotates to a set position, it can drive the corresponding clamping plate 312 to cooperate with the power component 2 to clamp the consumable 1; the power device Also includes a rotating unit 6, the rotating unit 6 includes a drive shaft 61, the cam 51 is arranged on the drive shaft 61, the cam 51 is arranged along the axial direction of the drive shaft 61 and rotates synchronously, and the protrusions of the plurality of cams 51 are arranged along the drive shaft 61. The direction of rotation is sequentially staggered by the preset angle setting.

Wherein, the drive shaft 61 includes a first end and a second end. Among the plurality of cams 51 on the drive shaft 61, the cam 51 closest to the first end is the first cam, and the cam 51 closest to the second end is the second cam. , the minimum angle formed by the first cam and the second cam along the rotation direction of the drive shaft 61 is greater than a preset angle.

Another aspect of this embodiment provides a conveyor for printing consumables, including the aforementioned power device; the conveyor for printing consumables also includes a control module, the control module is electrically connected to the power device, and the control module is used to control the power device to Set the sequence to drive the consumables 1 to move sequentially.

Another aspect of this embodiment provides a 3D printer, including the above-mentioned power device or the above-mentioned printing consumable conveyor.

A power device, a printing consumable conveyor and a 3D printer provided in the embodiments of the present invention, in the first working state, at least one of the at least two consumables 1 that the power device can drive to the first direction Move, and in the second working state, drive the consumables 1 to move in the second direction, and then enter the first working state again, can switch consumables 1 of different colors or materials according to requirements, expanding the scope of use. The power device can also drive the same kind of consumables 1 to move, thereby realizing the continuous printing of the same kind of consumables 1, avoiding manual frequent filling of a single consumable 1 after use, and reducing the manual workload.

Those skilled in the art can easily understand that, on the premise of no conflict, the above-mentioned advantageous modes can be freely combined and superimposed.

The above are only preferred embodiments of the application, and are not intended to limit the application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the application should be included in the protection scope of the application. Inside. The above are only the preferred embodiments of the present application. It should be pointed out that for those of ordinary skill in the art, some improvements and modifications can be made without departing from the technical principle of the application. These improvements and modifications should also be It is regarded as the scope of protection of this application.

Claims (10)

A power device, characterized in that it is used to drive consumables (1) to move, the power device includes a power part (2), a pressing unit (3) and a pressure relief part (4), and the consumables (1) are located at Between the power part (2) and the pressing unit (3), the pressing unit (3) is used to clamp the consumable (1) with the power part (2) under the action of an external force; The power part (2) is used to drive the clamped consumable (1) to move; the pressure relief part (4) is connected to the pressing unit (3), when the pressing unit (3) When the pressure on the consumable (1) is greater than a preset value, the pressure relief member (4) is used to move the pressing unit (3) away from the power member (2). The power device according to claim 1, characterized in that, the pressing unit (3) includes a pressing member (31) and a first elastic member (32), and the consumable (1) is located in the power member ( 2) Between the pressing piece (31), the first elastic piece (32) is arranged on the side of the pressing piece (31) close to the power piece (2), and the pressing piece (31) is connected with the pressure relief member (4), when the pressing member (31) moves to the power member (2), the first elastic member (32) is opposite to the pressing member ( 31) Apply an elastic force away from said power member (2). The power device according to claim 2, characterized in that, the pressure relief member (4) comprises a second elastic member (41) and a pressure relief slider (42), and the pressure relief slider (42) is connected with the pressure relief slider (42) respectively. The pressing unit (3) and the second elastic member (41) are connected, and the pressure relief slider (42) is arranged on one side of the second elastic member (41) facing the power member (2). side, the pressure relief slider (42) is limited to move in a direction intersecting the moving direction of the consumable (1), and the second elastic member (41) is controlled by the pressure relief slider (42) The pressing unit (3) exerts an elastic force towards the side where the power element (2) is located. The power device according to claim 2, characterized in that, the pressing member (31) comprises a pressing pulley (311) and a pressing plate (312), and the pressing pulley (311) is arranged on the pressing On the material plate (312), the pressing pulley (311) is arranged opposite to the power part (2), and the consumable material (1) is located between the power part (2) and the pressing pulley (311) between; The pressing plate (312) includes a first end and a second end, the pressure relief member (4) is arranged on the second end, and the first end of the pressing plate (312) is under the action of external force making the pressing pulley (311) and the power part (2) clamp the consumable (1); The power device also includes a connecting shaft, the connecting shaft passes through the pressing plate (312), and the connecting shaft is connected with the pressure relief member (4). The power device according to claim 4, characterized in that, the pressing unit (3) comprises at least two, the quantity of the consumables (1) corresponds to the quantity of the pressing unit (3), the The pressing unit (3) is arranged corresponding to the consumable (1), at least two of the pressing units (3) are connected to the pressure relief member (4), and the pressing unit (3) can be selected contact with the consumable (1), so that the power member (2) and the selected pressing unit (3) clamp the consumable (1). The power device according to claim 5, characterized in that, the power device further comprises a pusher (5), and the pusher (5) is arranged on a position where the hold-down plate (312) is away from the hold-down pulley ( 311), the pushing member (5) and the first elastic member (32) are arranged on the first end of the pressing plate (312), and the pushing member (5) can selectively drive The pressing unit (3) moves so that the pressing unit (3) and the power part (2) clamp the consumable (1), or make the consumable (1) and the pressing Unit (3) separates. The power device according to claim 6, characterized in that, the pusher (5) includes a plurality of cams (51), the cams (51) are arranged corresponding to the pressing plate (312), and the cams (51) When rotating to the set position, it can drive the corresponding pressing plate (312) to cooperate with the power part (2) to clamp the consumable (1); The power device also includes a rotary unit (6), the rotary unit (6) includes a drive shaft (61), the cam (51) is arranged on the drive shaft (61), and the cam (51) is arranged along the The drive shaft (61) is arranged in the axial direction and rotates synchronously, and the protruding parts of the plurality of cams (51) are arranged in sequence along the rotation direction of the drive shaft (61) at preset angles. The power device according to claim 7, characterized in that, the drive shaft (61) includes a first end and a second end, and among the plurality of cams (51) on the drive shaft (61), the distance The nearest cam (51) at the first end is the first cam, and the nearest cam (51) at the second end is the second cam, and the first cam and the second cam are along the drive shaft ( 61) The minimum angle formed by the rotation direction is greater than the preset angle. A conveyor for printing consumables, characterized in that it comprises the power device according to any one of claims 1-8; The printing consumable conveyor also includes a control module, and the control module is electrically connected to the power device. A 3D printer, characterized by comprising the power device according to any one of claims 1-8 or the printing consumable conveyor according to claim 9.

Images