CN117183322A - Cutting device and method of continuous fiber reinforced composite material 3D printer - Google Patents
Cutting device and method of continuous fiber reinforced composite material 3D printer Download PDFInfo
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- CN117183322A CN117183322A CN202311155743.1A CN202311155743A CN117183322A CN 117183322 A CN117183322 A CN 117183322A CN 202311155743 A CN202311155743 A CN 202311155743A CN 117183322 A CN117183322 A CN 117183322A
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- continuous fiber
- cutting
- nozzle
- reinforced composite
- fiber reinforced
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- 239000003733 fiber-reinforced composite Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 title abstract description 22
- 239000000835 fiber Substances 0.000 claims abstract description 37
- 239000011159 matrix material Substances 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 239000004033 plastic Substances 0.000 claims abstract description 20
- 230000003287 optical effect Effects 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000007639 printing Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims 6
- 230000009471 action Effects 0.000 description 4
- 238000010146 3D printing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Abstract
The utility model provides a cutting device and method of continuous fiber reinforced composite material 3D printer, in the equipment, the bottom plate is vertical plate structure, the bottom plate is equipped with mounting hole and arc spout; a hybrid printhead mounted to the base plate via the mounting holes, the hybrid printhead including a continuous fiber inlet, a matrix plastic inlet, and a nozzle at the bottom; the cutting device is slidably connected with the arc-shaped sliding grooves, the sliding groove plate is arranged on the arc-shaped sliding grooves, the sliding groove plate is provided with a pair of sliding grooves, the sliding blocks are connected with the other end of the screw rod and a pair of optical axes and driven by the screw rod to move along the sliding grooves, the cutting mechanism is connected with a pair of horizontal sliding blocks, and the cutting mechanism cuts continuous fibers from the nozzle along with the movement of the pair of horizontal sliding blocks at the cutting position close to the end part of the nozzle.
Description
Technical Field
The application belongs to the technical field of 3D printers, and particularly relates to cutting equipment and a cutting method for a continuous fiber reinforced composite 3D printer.
Background
The continuous fiber 3D printing technology can manufacture any complex structure and has the characteristics of light weight and high strength. The core of the technology is that high-rigidity and high-strength fibers are filled in a bearing part of a matrix, the filling lengths of the fibers are different according to the shape characteristics of filling areas, the cutting mechanism of the existing 3D printer is arranged inside a printing head, fibers with shorter lengths cannot be cut, and certain process limitations are achieved.
Disclosure of Invention
In order to solve the technical problem that the conventional 3D printer cannot cut short-distance fibers, the application provides cutting equipment and a method for the 3D printer of the continuous fiber reinforced composite material, which are suitable for cutting continuous fibers with any length and expand the application range of the 3D printed continuous fiber composite material.
The cutting device of the continuous fiber reinforced composite 3D printer comprises:
the bottom plate is of a vertical plate structure and is provided with a mounting hole and an arc chute;
a hybrid printhead mounted to the base plate via the mounting holes, the hybrid printhead including a continuous fiber inlet, a matrix plastic inlet, and a nozzle at the bottom;
the cutting device is connected with the arc chute in a sliding way and comprises,
the chute plate is arranged on the arc chute and is provided with a pair of chutes;
a stepping motor mounted to the chute plate;
a coupling connected to the stepping motor to be rotated by the stepping motor;
one end of the screw rod is connected with the coupler;
the optical axes are arranged on two sides of the screw rod in parallel;
the sliding blocks are connected with the other end of the screw rod and the pair of optical axes and move along the sliding grooves under the drive of the screw rod;
and the cutting mechanism is connected with the pair of horizontal sliding blocks, and cuts the continuous fibers from the nozzle at a cutting position close to the end part of the nozzle along with the movement of the pair of horizontal sliding blocks.
In the cutting equipment of the continuous fiber reinforced composite material 3D printer, a cutting device is locked in the arc-shaped chute through an unlocked locking piece.
In the cutting device of the continuous fiber reinforced composite material 3D printer, a pair of sliding grooves extend from approximately parallel to gradually approach and do not intersect in the direction of the nozzle.
In the cutting device of the continuous fiber reinforced composite material 3D printer, the sliding groove comprises a horizontal section and an inclined section which obliquely extends from one end of the horizontal section, which is close to the nozzle.
In the cutting device of the continuous fiber reinforced composite material 3D printer, the mixed printing head is provided with a heating block between the continuous fiber inlet, the matrix plastic inlet and the nozzle positioned at the bottom.
In the cutting equipment of the continuous fiber reinforced composite material 3D printer, a throat is arranged above the heating block, the throat is communicated with a continuous fiber inlet and a matrix plastic inlet and a nozzle positioned at the bottom, and a heat dissipation block is arranged between the throat and the continuous fiber inlet and between the throat and the matrix plastic inlet.
In the cutting equipment of the continuous fiber reinforced composite material 3D printer, the cutting mechanism is connected with the sliding block through the cutting knife bracket, and the cutting mechanism comprises a pair of cutting knives.
In the cutting equipment of the continuous fiber reinforced composite material 3D printer, the cutting position is 0.5mm away from the bottom of the nozzle.
The cutting equipment of the continuous fiber reinforced composite material 3D printer further comprises a position sensor for measuring a cutting position and a controller for connecting the position sensor and the stepping motor, wherein the controller controls the stepping motor to drive so that the cutting mechanism performs cutting movement at the cutting position in response to the cutting position.
The cutting method of the cutting device of the continuous fiber reinforced composite material 3D printer comprises the following steps,
the continuous fiber and the matrix plastic enter the mixed printing head through the continuous fiber inlet and the matrix plastic inlet respectively and are subjected to heating, and then are subjected to blending extrusion through the nozzle;
the cutting device slides in the arc chute to adjust the angle and the position relation between the cutting device and the nozzle and then locks;
the stepping motor drives the screw rod to rotate, and the sliding block moves along the sliding groove under the drive of the screw rod, so that the cutting mechanism is closed in the process of advancing towards the cutting position, and continuous fibers are cut.
Compared with the prior art, the application has the following advantages:
the cutting device of the continuous fiber reinforced composite material 3D printer uses one motor to realize the feeding action and the cutting action of the cutter, can realize the cutting of fibers with any length and different hardness, expands the application range of the 3D printing fiber reinforced composite material, and is easy to maintain.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application.
FIG. 1 is a schematic diagram of a cutting apparatus of a continuous fiber reinforced composite 3D printer in accordance with one embodiment of the present application;
FIG. 2 is a schematic structural view of a cutting device of a cutting apparatus of a continuous fiber reinforced composite 3D printer according to an embodiment of the present application;
FIG. 3 is a schematic view of a chute of a cutting apparatus of a continuous fiber reinforced composite 3D printer in one embodiment of the application;
FIG. 4 is a schematic diagram of the mechanism of a cutter of a cutting apparatus of a continuous fiber reinforced composite 3D printer in one embodiment of the application;
fig. 5 is a schematic structural view of a base plate of a cutting apparatus of a continuous fiber reinforced composite 3D printer in one embodiment of the present application.
Detailed Description
The application is described in further detail below with reference to fig. 1 to 5 and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the substances, and not restrictive of the application. It should be further noted that, for convenience of description, only the portions related to the present application are shown in the drawings.
In addition, the embodiments of the present application and the features of the embodiments may be combined with each other without collision. The technical scheme of the present application will be described in detail below with reference to the accompanying drawings in combination with embodiments.
Unless otherwise indicated, the exemplary implementations/embodiments shown are to be understood as providing exemplary features of various details of some of the ways in which the technical concepts of the present application may be practiced. Thus, unless otherwise indicated, the features of the various implementations/embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concepts of the present application.
Cross-hatching and/or shading may be used in the drawings to generally clarify the boundaries between adjacent components. As such, the presence or absence of cross-hatching or shading does not convey or represent any preference or requirement for a particular material, material property, dimension, proportion, commonality between illustrated components, and/or any other characteristic, attribute, property, etc. of a component, unless indicated. In addition, in the drawings, the size and relative sizes of elements may be exaggerated for clarity and/or descriptive purposes. While the exemplary embodiments may be variously implemented, the particular process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in reverse order from that described. Moreover, like reference numerals designate like parts.
When an element is referred to as being "on" or "over", "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element, there are no intervening elements present. For this reason, the term "connected" may refer to physical connections, electrical connections, and the like, with or without intermediate components.
For descriptive purposes, the application may use spatially relative terms such as "under … …," under … …, "" under … …, "" lower, "" above … …, "" upper, "" above … …, "" higher "and" side (e.g., as in "sidewall") to describe one component's relationship to another (other) component as illustrated in the figures. In addition to the orientations depicted in the drawings, the spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture. For example, if the device in the figures is turned over, elements described as "under" or "beneath" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "below" … … can encompass both an orientation of "above" and "below". Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising," and variations thereof, are used in the present specification, the presence of stated features, integers, steps, operations, elements, components, and/or groups thereof is described, but the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximation terms and not as degree terms, and as such, are used to explain the inherent deviations of measured, calculated, and/or provided values that would be recognized by one of ordinary skill in the art.
Referring to fig. 1 to 5, in one embodiment, a cutting apparatus of a continuous fiber reinforced composite 3D printer according to the present application includes:
the bottom plate 17 is of a vertical plate structure, and the bottom plate 17 is provided with a mounting hole and an arc chute;
a hybrid printhead mounted on the base plate 17 via the mounting holes, the hybrid printhead comprising a continuous fiber inlet 1, a matrix plastic inlet 2, and a nozzle at the bottom;
a cutting device 6 which is connected with the arc chute in a sliding way, wherein the cutting device 6 comprises,
a chute plate 14 mounted to the arc chute, the chute plate 14 being provided with a pair of chutes 15;
a stepping motor 13 mounted to the chute plate 14;
a coupling 12 connected to the stepping motor 13 to be driven to rotate via the stepping motor 13;
a screw 11, one end of which is connected with the coupling 12;
a pair of optical axes 10 disposed in parallel on both sides of the screw 11;
a pair of sliding blocks 9, wherein the sliding blocks 9 are connected with the other end of the screw rod 11 and a pair of optical axes 10 and move along the sliding grooves 15 under the driving of the screw rod 11;
and a cutting mechanism 7 connected to the pair of horizontal sliders 9, wherein the cutting mechanism 7 cuts the continuous fibers from the nozzle at a cutting position near the end of the nozzle by moving along with the pair of horizontal sliders 9.
In a preferred embodiment of the cutting device of the continuous fiber reinforced composite 3D printer, the cutting device 6 is locked to the arc chute via an unlocked locking member.
In the preferred embodiment of the cutting apparatus of the continuous fiber reinforced composite 3D printer, a pair of runners 15 extend from substantially parallel to progressively closer to and do not intersect in the direction toward the nozzle.
In a preferred embodiment of the cutting apparatus of the continuous fiber reinforced composite 3D printer, the chute 15 includes a horizontal section and a sloped section extending obliquely from one end of the horizontal section near the nozzle.
In the preferred embodiment of the cutting device of the continuous fiber reinforced composite 3D printer, the hybrid printing head is provided with a heating block 5 between the continuous fiber inlet 1, the matrix plastic inlet 2 and the nozzle at the bottom.
In the preferred embodiment of the cutting device of the continuous fiber reinforced composite material 3D printer, a throat pipe 4 is arranged above the heating block 5, the throat pipe 4 is communicated with the continuous fiber inlet 1 and the matrix plastic inlet 2 and a nozzle positioned at the bottom, and a heat dissipation block 3 is arranged between the throat pipe 4 and the continuous fiber inlet 1 and between the throat pipe 4 and the matrix plastic inlet 2.
In the preferred embodiment of the cutting device of the continuous fiber reinforced composite 3D printer, the cutting mechanism 7 is connected with the sliding block 9 through the cutter bracket 8, and the cutting mechanism 7 comprises a pair of cutters 16.
In a preferred embodiment of the cutting device of the continuous fiber reinforced composite 3D printer, the cutting position is 0.5mm away from the bottom of the nozzle.
In the preferred embodiment of the cutting device of the continuous fiber reinforced composite material 3D printer, the cutting device further comprises a position sensor for measuring the cutting position and a controller connected with the position sensor and the stepping motor 13, and the controller controls the stepping motor 13 to drive the cutting mechanism 7 to perform cutting movement at the cutting position in response to the cutting position.
In one embodiment, an independent cutting device 6 is mounted beside the hybrid printing head, and the movement track of the cutter is limited through a chute 15, so that the forward feeding and cutting functions of the cutter are realized. The cutting mechanism 7 can be freely adjusted in angle, and is convenient to match with printing nozzle positions with different heights.
The cutting method of the cutting device of the continuous fiber reinforced composite material 3D printer comprises the following steps,
the continuous fiber and the matrix plastic enter the mixed printing head through the continuous fiber inlet 1 and the matrix plastic inlet 2 respectively and are subjected to heating, and then are subjected to blending extrusion through a nozzle;
the cutting device 6 slides in the arc chute to adjust the angle and the position relation between the cutting device 6 and the nozzle and then is locked;
the stepping motor 13 drives the screw rod 11 to rotate, and the sliding block 9 is driven by the screw rod 11 to move along the sliding groove 15, so that the cutting mechanism 7 is closed in the process of advancing towards the cutting position, and continuous fibers are cut.
In one embodiment, continuous carbon fiber tows are fed into a continuous fiber inlet 1, thermoplastic matrix tows are fed into a matrix plastic inlet 2, both tows are fed through a throat 4 into the inside of a nozzle in a heating block 5, and the molten resin with reinforcing fibers is continuously extruded. When continuous fibers need to be cut, the stepping motor 13 drives the screw rod to rotate, the sliding block 9 is further driven to move forwards, the sliding groove 15 limits the movement track of the tail of the cutter, the cutter is simultaneously closed in the advancing process, the cutting action is completed, and the continuous fibers are cut. The stepping motor 13 reverses to drive the sliding block 9 to move backwards, and the cutter retreats from the nozzle area to wait for the next cutting action.
In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "a particular example," "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the application. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
It will be appreciated by persons skilled in the art that the above embodiments are provided for clarity of illustration only and are not intended to limit the scope of the application. Other variations or modifications will be apparent to persons skilled in the art from the foregoing disclosure, and such variations or modifications are intended to be within the scope of the present application.
Claims (10)
1. Cutting equipment of continuous fiber reinforced composite 3D printer, characterized in that it includes:
the bottom plate is of a vertical plate structure and is provided with a mounting hole and an arc chute;
a hybrid printhead mounted to the base plate via the mounting holes, the hybrid printhead including a continuous fiber inlet, a matrix plastic inlet, and a nozzle at the bottom;
the cutting device is connected with the arc chute in a sliding way and comprises,
the chute plate is arranged on the arc chute and is provided with a pair of chutes;
a stepping motor mounted to the chute plate;
a coupling connected to the stepping motor to be rotated by the stepping motor;
one end of the screw rod is connected with the coupler;
the optical axes are arranged on two sides of the screw rod in parallel;
the sliding blocks are connected with the other end of the screw rod and the pair of optical axes and move along the sliding grooves under the drive of the screw rod;
and the cutting mechanism is connected with the pair of horizontal sliding blocks, and cuts the continuous fibers from the nozzle at a cutting position close to the end part of the nozzle along with the movement of the pair of horizontal sliding blocks.
2. Cutting apparatus for continuous fiber reinforced composite 3D printers according to claim 1, characterized in that preferably the cutting device is locked to the curved chute via an unlockable locking member.
3. The cutting apparatus of a continuous fiber reinforced composite 3D printer of claim 1, wherein the pair of runners extend from substantially parallel to progressively closer to and do not intersect in a direction toward the nozzle.
4. A cutting apparatus for a continuous fiber reinforced composite 3D printer according to claim 3, wherein the chute comprises a horizontal section and a sloped section extending obliquely from the horizontal section near one end of the nozzle.
5. The cutting apparatus of a continuous fiber reinforced composite 3D printer of claim 1, wherein the hybrid printhead is provided with a heated heating block between the continuous fiber inlet, the matrix plastic inlet and the nozzle at the bottom.
6. The cutting device of the continuous fiber reinforced composite 3D printer according to claim 5, wherein a throat is arranged above the heating block, the throat is communicated with the continuous fiber inlet and the matrix plastic inlet and the nozzle at the bottom, and a heat dissipation block is arranged between the throat and the continuous fiber inlet and between the throat and the matrix plastic inlet.
7. The cutting apparatus of a continuous fiber reinforced composite 3D printer of claim 1, wherein the cutting mechanism is coupled to the slider via a cutter mount, the cutting mechanism comprising a pair of cutters.
8. The cutting apparatus of the continuous fiber reinforced composite 3D printer of claim 1, wherein the cutting position is 0.5mm from the bottom of the nozzle.
9. The apparatus for trimming a continuous fiber reinforced composite 3D printer of claim 1, further comprising a position sensor for measuring a trimming position and a controller coupled to the position sensor and the stepper motor, the controller controlling the stepper motor to drive the trimming mechanism to perform a trimming motion at the trimming position in response to the trimming position.
10. Cutting method using a cutting device of a continuous fiber reinforced composite 3D printer according to any one of claims 1-9, characterized in that it comprises the steps of,
the continuous fiber and the matrix plastic enter the mixed printing head through the continuous fiber inlet and the matrix plastic inlet respectively and are subjected to heating, and then are subjected to blending extrusion through the nozzle;
the cutting device slides in the arc chute to adjust the angle and the position relation between the cutting device and the nozzle and then locks;
the stepping motor drives the screw rod to rotate, and the sliding block moves along the sliding groove under the drive of the screw rod, so that the cutting mechanism is closed in the process of advancing towards the cutting position, and continuous fibers are cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311155743.1A CN117183322A (en) | 2023-09-07 | 2023-09-07 | Cutting device and method of continuous fiber reinforced composite material 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311155743.1A CN117183322A (en) | 2023-09-07 | 2023-09-07 | Cutting device and method of continuous fiber reinforced composite material 3D printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117183322A true CN117183322A (en) | 2023-12-08 |
Family
ID=88982921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311155743.1A Pending CN117183322A (en) | 2023-09-07 | 2023-09-07 | Cutting device and method of continuous fiber reinforced composite material 3D printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117183322A (en) |
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2023
- 2023-09-07 CN CN202311155743.1A patent/CN117183322A/en active Pending
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