Material breakage detection apparatus for printer filament and method

Abstract

Disclosed in the present invention are a material breakage detection apparatus for a printer filament and a method. The apparatus comprises: an assembly base structure internally provided with a filament path channel; a slot-type photoelectric switch; a transmission trigger structure comprising a transmission trigger member, one end of the transmission trigger member being slidably located in the filament path channel; a pivoting linkage structure, which is pivotally mounted on the assembly base structure, wherein the pivoting linkage structure is correspondingly transmittingly arranged at the other end of the transmission trigger member, and the end of the pivoting linkage structure away from the pivot mounting end thereof is configured to be switchably and releasably engaged with the slot-type photoelectric switch; and a return magnetic attraction structure, which is fixedly mounted on the assembly base structure, wherein the return magnetic attraction structure is configured to be detachably magnetically engaged with the side of the pivoting linkage structure close to the transmission trigger member. The present invention solves the technical problem in the prior art of low detection accuracy easily caused by material breakage detection processes for three-dimensional printing devices generally relying on conventional optical schemes for direct detection of the presence or absence of consumables and being affected by many factors.

Description

Printer wire material breakage detection device and method TECHNICAL FIELD

[0001] The present application relates to the technical field of printer wire material detection, in particular to a printer wire material breakage detection device and method. BACKGROUND

[0002] Currently, 3D printing equipment, also known as three-dimensional printing equipment, is based on a digital model file, uses special wax material, powdered metal or plastic, and other adhesible materials, and uses a layer-by-layer printing method to manufacture three-dimensional objects.

[0003] Current three-dimensional printing equipment often encounters breakage or exhaustion of its built-in consumables during printing use. When the breakage or exhaustion of the consumables cannot be detected in time, the equipment will continue to run, resulting in empty walking, and thus the printing model cannot be completed or printing quality problems occur.

[0004] In the prior art, the breakage detection process of the three-dimensional printing equipment is still generally based on traditional optical solutions to directly detect the presence or absence of consumables. The light transmittance, line diameter non-uniformity, bending degree, and light transmission hole cleanliness of the consumables greatly affect the detection results, which easily leads to reduced detection accuracy.

[0005] SUMMARY

[0006] Therefore, the present application provides a printer wire material breakage detection device and method to solve the technical problem that the breakage detection process of the three-dimensional printing equipment in the prior art is still generally based on traditional optical solutions to directly detect the presence or absence of consumables, which is easily affected by many factors and leads to low detection accuracy.

[0007] To achieve the above purpose, the present application provides the following technical solutions:

[0008] A printer wire material breakage detection device, comprising:

[0009] An assembly base structure with a wire path channel built-in;

[0010] A slot-type photoelectric switch is fixedly connected and assembled on the assembly base structure;

[0011] A transmission trigger structure has a transmission trigger piece, which is slidingly assembled on the assembly base structure, and one end of the transmission trigger piece is slidingly located in the wire path channel;

[0012] The rotation connecting rod structure is rotationally connected to the assembly base structure, and the rotation connecting rod structure is correspondingly arranged at the other end of the transmission trigger.

[0013] The reset magnetic attraction structure is fixedly connected to the assembly base structure, and the reset magnetic attraction structure is magnetically attracted to the side of the rotation connecting rod structure close to the transmission trigger.

[0014] Based on the above technical solutions, the present application is further described as follows:

[0015] As a further scheme of the present application, the assembly base structure comprises a base body, a wire inlet portion and a wire outlet portion.

[0016] The wire inlet portion is provided in two groups, and the two groups of wire inlet portions are separately arranged at the side of the base body.

[0017] The wire outlet portion is arranged at the other side of the base body, and the wire path channel corresponding to the wire outlet portion is connected to the wire path channels corresponding to the two groups of wire inlet portions.

[0018] As a further scheme of the present application, the transmission trigger structure is provided in two groups, and the transmission trigger structure further comprises a guide slide.

[0019] The transmission trigger is provided as a transmission trigger piece.

[0020] The two groups of guide slides are fixedly connected to the base body, and the two groups of guide slides are respectively and correspondingly arranged at the side of the wire path channels corresponding to the two groups of wire inlet portions.

[0021] The two groups of transmission trigger pieces are respectively and correspondingly arranged in the two groups of guide slides, and one end of the transmission trigger piece is respectively and correspondingly arranged in the wire path channel corresponding to the two groups of wire inlet portions. The transmission trigger piece can be automatically slid along the guide slide in the direction away from the wire path channel based on the surface extension of the printing wire.

[0022] As a further scheme of the present application, the rotation connecting rod structure comprises a connecting rod body and an extension shielding portion.

[0023] The assembly base structure further comprises a shaft mounting seat.

[0024] The shaft mounting seat is fixedly connected to the base body, and the shaft mounting seat is correspondingly arranged at the middle position of the two groups of wire inlet portions.

[0025] The extension shielding part is fixedly arranged on the side of the connecting rod body away from the shaft seat, and is an extension rod body made of stainless steel plate, which forms a lever to further amplify the displacement of the extension shielding part and amplifies the transmission of the original linear change of the printing wire.

[0026] As a further scheme of the present application, the rotating connecting rod structure further comprises a swing rod part.

[0027] The swing rod part is arranged in two groups, and the two groups of swing rod parts are symmetrically and one-to-one fixedly arranged on the two sides of the connecting rod body, and the two groups of swing rod parts and the two groups of transmission trigger pieces are one-to-one abuttingly arranged between the two ends away from the wire path channel.

[0028] As a further scheme of the present application, the slot-type photoelectric switch is fixedly and assembled on the base body, and the slot-type photoelectric switch has a photoelectric detection end for linear detection of shielding.

[0029] When the swing rod part is in the initial state, the extension shielding part is outside the detection range of the photoelectric detection end, and when the swing rod part is forced to rise, the extension shielding part is inside the detection range of the photoelectric detection end. The photoelectric detection end completes the linear detection of the printing wire through the extension shielding part of the rotating connecting rod structure.

[0030] As a further scheme of the present application, the rotating connecting rod structure further comprises a ferromagnetic block.

[0031] The ferromagnetic block is arranged in the connecting rod body.

[0032] The reset magnetic attraction structure is fixedly and assembled on the base body, and is arranged corresponding to the ferromagnetic block. The reset magnetic attraction structure and the ferromagnetic block have different magnetic poles.

[0033] A wire breakage detection method based on the wire breakage detection device for a printer, comprising the following steps:

[0034] The printing wire is inserted into the path channel corresponding to the wire inlet part of the assembly base structure, and the wire body of the printing wire is adaptively lifted up the transmission trigger piece in the transmission trigger structure based on the surface extension of the wire body with different amplitudes, so that the transmission trigger piece is adaptively slid along the guide slide in the transmission trigger structure in a direction away from the path channel corresponding to the wire inlet part.

[0035] The force sliding action of the transmission trigger piece corresponds to the swing rod part in the synchronous lifting and rotating link structure, at this time, the main body of the rotating link structure is automatically rotated based on the shaft seat in the assembly base structure, and the extension blocking part in the rotating link structure is simultaneously caused to form a lever based on the lifting displacement of the swing rod part to further amplify its own displacement, and the original linear change of the printing wire is amplified, at this time, the extension blocking part is in the detection range of the photoelectric detection end in the slot photoelectric switch, and then the linear detection of the printing wire is completed through the indirect amplification of the extension blocking part by the photoelectric detection end.

[0036] As a further scheme of the present application, the following steps are further included:

[0037] When the printing wire appears to be broken or completely passes through, at this time, the lifting force of the printing wire forms a magnetic attraction between the return magnetic attraction structure in the assembly base structure and the ferromagnetic block in the rotating link structure, and the rotating link structure is automatically returned by the magnetic attraction, so that the slot photoelectric switch detects the broken or completely passed state of the printing wire.

[0038] The present application has the following beneficial effects:

[0039] 1. The device can significantly improve the anti-interference stability of the printing wire detection function;

[0040] 2. The original monitoring point built-in the printing wire path channel is moved out, avoiding the influence of the accumulated chips in the path channel on the detection light;

[0041] 3. The original linear change of the printing wire is amplified by the lever action of the rotating link structure, the light shielding change range during linear detection is increased, and the threshold range of effective detection is improved;

[0042] 4. The light shielding material set for the rotating link structure is replaced by stainless steel sheet from the original printing wire, avoiding the problem of reduced detection threshold range caused by the higher local light transmittance of the original printing wire;

[0043] 5. The two groups of path channels of the printing wire are integrated in the assembly base structure, and the rotating link structure synchronously corresponds to the two groups of path channels, avoiding the detection interference problem caused by the mutual matching of the flow channels. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. The structure, proportion, size, etc. shown in the present specification are only used to cooperate with the content disclosed in the present specification, so as to be understood and read by those skilled in the art. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that can be produced by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0045] Fig. 1 is a schematic view of the axial structure of the line break detection device for the printer based on the line material corresponding to one side direction according to an embodiment of the present application.

[0046] Fig. 2 is a schematic view of the axial structure of the line break detection device for the printer based on the line material corresponding to one side direction according to an embodiment of the present application.

[0047] Fig. 3 is a schematic view of the axial structure of the line break detection device for the printer based on the line material corresponding to the other side direction according to an embodiment of the present application.

[0048] Fig. 4 is a schematic view of the side structure of the line break detection device for the printer based on the line material according to an embodiment of the present application.

[0049] Fig. 5 is a schematic view of the structure of the line break detection device for the printer based on the line material corresponding to the line material inlet position according to an embodiment of the present application.

[0050] In the drawings, the component list represented by each reference numeral is as follows:

[0051] Assembly base structure 1: base body 11, line material inlet portion 12, material pipe joint portion 13, line material outlet portion 14, shaft mounting seat 15;

[0052] Groove photoelectric switch 2, photoelectric detection end 21;

[0053] Transmission trigger structure 3: guide sliding seat 31, transmission trigger piece 32;

[0054] Indexing link structure 4: link body 41, swing rod portion 42, extension shielding portion 43, ferromagnetic block 44;

[0055] Reset magnetic attraction structure 5. DETAILED DESCRIPTION

[0056] The following embodiments of the present application are explained by way of specific examples, and other advantages and effects of the present application will be readily understood by those skilled in the art from the disclosure of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0057] The terms such as "upper", "lower", "left", "right", "middle" and the like used in the present specification are only for the convenience of clear description, and are not intended to limit the scope of the present application. Changes or adjustments of the relative relationship without substantial changes in the technical content are also considered as the scope of the present application.

[0058] As shown in FIGS. 1-5, the embodiment of the present application provides a kind of line detection device based on printer wire, including assembly base structure 1, slot photoelectric switch 2, transmission trigger structure 3, index connecting rod structure 4 and back position magnetic attraction structure 5, to be able to lift transmission trigger structure 3 by the line body of printing wire when printing wire is inserted into the path channel of assembly base structure 1, and transmission trigger structure 3 can be lifted adaptively with different amplitude based on the surface extension of printing wire, and then transmission trigger structure 3 can be lifted synchronously by transmission trigger structure 3, so that transmission trigger structure 4 is transferred to the detection position of slot photoelectric switch 2 based on assembly base structure 1, so that the line detection of printing wire is indirectly completed by slot photoelectric switch 2, in addition, when printing wire appears breakpoint or is completely passed through, the magnetic attraction between back position magnetic attraction structure 5 and transmission trigger structure 4 can also make transmission trigger structure 4 automatically return, so as to further complete the breakpoint or complete passing detection of printing wire by slot photoelectric switch 2.

[0059] The above architecture can significantly improve the anti-interference stability of the printing wire detection function, and the principle is that 1) the original monitoring point inside the printing wire path channel is moved out, and the influence of the accumulated chips in the path channel on the detection light is avoided; 2) the original line change of the printing wire is amplified by the lever action of the transmission trigger structure 4, the light shielding change range is increased, and the threshold range of effective detection is improved; 3) the light shielding material of the transmission trigger structure 4 is replaced by stainless steel sheet from the original printing wire, which avoids the problem of reduced detection threshold range caused by the higher local light transmittance of the original printing wire; 4) the two groups of path channels of the printing wire are integrated in the assembly base structure 1, and are synchronously corresponding to the two groups of path channels by the transmission trigger structure 4, which avoids the detection interference problem caused by the mutual matching of flow channels.

[0060] Please refer to FIG. 1 to FIG. 5, the assembly base structure 1 includes a base body 11, a wire inlet portion 12, a tube joint portion 13, a wire outlet portion 14 and a shaft seat 15; wherein the base body 11 is used as the assembly basis of the overall framework; the wire inlet portion 12 is provided with two groups, and the two groups of wire inlet portions 12 are respectively opened at the side position of the base body 11 in a spaced manner, the wire outlet portion 14 is opened at the other side of the base body 11, and the wire path channel corresponding to the wire outlet portion 14 is connected between the wire path channels corresponding to the two groups of wire inlet portions 12, so that the two groups of path channels of the printing wire are integrated in the base body 11; the tube joint portion 13 is further connected between the tube joint portion 13 and the subsequent material conveying pipeline to establish a conductive connection; the shaft seat 15 is fixedly connected and assembled to the base body 11, and the shaft seat 15 is located at the middle position of the two groups of wire inlet portions 12, so that the shaft seat 15 is used as the adapter assembly basis of the index linkage structure 4, so that the index linkage structure 4 synchronously corresponds to the two groups of path channels, and the wire detection is effectively realized.

[0061] The slot photoelectric switch 2 is fixedly and assembled to the base body 11, and the slot photoelectric switch 2 has a photoelectric detection end 21, which is used for linear detection of shielding through the photoelectric detection end 21.

[0062] The transmission trigger structure 3 is provided with two groups, specifically, the transmission trigger structure 3 includes a guide sliding seat 31 and a transmission trigger piece 32; wherein the two groups of guide sliding seats 31 are respectively fixedly and assembled to the base body 11, and the two groups of guide sliding seats 31 are respectively and correspondingly located at one side of the wire path channel corresponding to the two groups of wire inlet portions 12; the two groups of transmission trigger pieces 32 are respectively and correspondingly slidably arranged in the two groups of guide sliding seats 31, and one end of the transmission trigger piece 32 is respectively and correspondingly located inside the wire path channel corresponding to the two groups of wire inlet portions 12; so that when the printing wire penetrates into the wire path channel corresponding to any group of wire inlet portions 12, the transmission trigger piece 32 can be adaptively lifted with different amplitudes based on the surface extension of the printing wire, that is, the transmission trigger piece 32 is adaptively slid along the guide sliding seat 31 in the direction away from the wire path channel.

[0063] The rotating connecting rod structure 4 comprises a connecting rod body 41, a swing rod part 42, an extension shielding part 43 and a ferromagnetic block 44; wherein the connecting rod body 41 is connected and assembled to the shaft mounting seat 15; the swing rod part 42 is provided with two groups, the two groups of swing rod parts 42 are symmetrically and correspondingly fixedly connected to the two side parts of the connecting rod body 41, and the two groups of swing rod parts 42 are correspondingly abutted with the two groups of transmission trigger pieces 32, so that the force sliding of the transmission trigger piece 32 can correspondingly and synchronously lift the swing rod part 42; the extension shielding part 43 is fixedly connected to one side of the connecting rod body 41 away from the shaft mounting seat 15, and the extension shielding part 43 is an extension rod body made of stainless steel plate, so that the extension shielding part 43 can be further enlarged by the lever principle based on the lifting displacement of the swing rod part 42, and the original line type change transmission is enlarged, and the light shielding change range and the effective detection threshold range during line type detection are improved; when the swing rod part 42 is in the initial state, the extension shielding part 43 is outside the detection range of the photoelectric detection end 21, and when the swing rod part 42 is lifted by force, the extension shielding part 43 is inside the detection range of the photoelectric detection end 21, so that the line type detection of the printing wire is completed by the photoelectric detection end 21 through the external indirect amplification of the extension shielding part 43 of the rotating connecting rod structure 4.

[0064] Please continue to refer to FIGS. 1-5, the return magnetic attraction structure 5 is fixedly and assembled to the base body 11, the ferromagnetic block 44 is arranged in the connecting rod body 41, the return magnetic attraction structure 5 and the ferromagnetic block 44 correspondingly, and the magnetic poles of the return magnetic attraction structure 5 and the ferromagnetic block 44 are different, so that when the printing wire is broken or completely passes through, the lifting of the wire is not used, the magnetic attraction between the return magnetic attraction structure 5 and the ferromagnetic block 44 makes the rotating connecting rod structure 4 automatically return, so that the slot type photoelectric switch 2 detects the broken point state or the completely passing state of the printing wire.

[0065] The embodiment of the present application also provides a broken material detection method based on the broken material detection device for the printing wire, and specifically comprises the following steps:

[0066] The printing wire is inserted into the path channel corresponding to the wire inlet part 12 of the assembly base structure 1, so that the printing wire body is adaptively lifted to the transmission trigger piece 32 in the transmission trigger structure 3 based on the surface extension of the printing wire body, so that the transmission trigger piece 32 is adaptively slid along the guide sliding seat 31 in the transmission trigger structure 3 away from the side of the path channel corresponding to the wire inlet part 12;

[0067] The force sliding action of the transmission trigger piece 32 corresponds to the swing rod part 42 in the synchronous lifting and rotation connecting rod structure 4. At this time, the connecting rod main body 41 in the rotation connecting rod structure 4 is self-adapting rotation based on the shaft seat 15 in the assembly base structure 1, and synchronously makes the extension shielding part 43 in the rotation connecting rod structure 4 based on the lifting displacement action of the swing rod part 42, further amplifies its own displacement amount by means of the lever principle, thereby amplifying the original printing wire linear change transmission, at this time the extension shielding part 43 is in the detection range of the photoelectric detection end 21 in the slot photoelectric switch 2, and then the photoelectric detection end 21 completes the linear detection of the printing wire through the external indirect amplification of the extension shielding part 43 in the rotation connecting rod structure 4.

[0068] When the printing wire appears a breakpoint or is completely passed, at this time there is no wire lifting force, a magnetic attraction action is formed between the back position magnetic attraction structure 5 in the assembly base structure 1 and the ferromagnetic block 44 in the rotation connecting rod structure 4, and the rotation connecting rod structure 4 is automatically returned as a whole by means of the magnetic attraction action, thereby the slot photoelectric switch 2 detects the breakpoint state or the completely passed state of the printing wire.

[0069] Although the present application has been described in detail by the general description and specific embodiments above, some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the present application, all belong to the scope of the present application.

Claims

1. A yarn breakage detection device based on a wire for a printer, characterized by, It comprises: an assembly base structure with a wire path channel built-in; a slot-type photoelectric switch fixedly and assembled on the assembly base structure; a transmission trigger structure with a transmission trigger piece slidingly assembled on the assembly base structure, and one end of the transmission trigger piece being slidably located in the wire path channel; a shift link structure connected and assembled on the assembly base structure, and the shift link structure being correspondingly and transmissionally arranged at the other end of the transmission trigger piece, and one end of the shift link structure away from the connected and assembled end being switchably and correspondingly arranged with the slot-type photoelectric switch; a return magnetic attraction structure fixedly and assembled on the assembly base structure, and the return magnetic attraction structure being separably and magnetically attracted between the side of the shift link structure close to the transmission trigger piece.

2. The wire breakage detection device based on the printer according to claim 1, wherein the assembly base structure comprises a base body, a wire inlet portion, and a wire outlet portion; the wire inlet portion is provided in two groups, and the two groups of wire inlet portions are separately and spacedly arranged at the side of the base body; the wire outlet portion is arranged at the other side of the base body, and the wire path channel corresponding to the wire outlet portion is connected and arranged with the wire path channels corresponding to the two groups of wire inlet portions.

3. The wire breakage detection device based on the printer according to claim 2, wherein the transmission trigger structure is provided in two groups, and further comprises a guide sliding seat; the transmission trigger piece is provided as a transmission trigger sheet; the two groups of guide sliding seats are fixedly and assembled on the base body, and the two groups of guide sliding seats are one-to-one correspondingly arranged at the side of the wire path channels corresponding to the two groups of wire inlet portions; the two groups of transmission trigger sheets are one-to-one correspondingly and slidingly arranged in the two groups of guide sliding seats, and one end of the transmission trigger sheet is one-to-one correspondingly arranged inside the wire path channel corresponding to the two groups of wire inlet portions the transmission trigger sheet can be adaptively and slidingly arranged along the guide sliding seat in the direction away from the side of the wire path channel based on the surface extension of the printing wire.

4. The wire breakage detection device based on the printer according to claim 3, wherein the shift link structure comprises a link body and an extended shielding portion; the assembly base structure further comprises a shaft mounting seat; the shaft mounting seat is fixedly and assembled on the base body, and the shaft mounting seat is correspondingly arranged at the intermediate position of the two groups of wire inlet portions; the extended shielding portion is fixedly arranged on the side of the link body away from the shaft mounting seat, and the extended shielding portion is provided as an extended rod body made of stainless steel plate, and the lever formed by the extended shielding portion further amplifies its own displacement amount, and amplifies the original linear change of the printing wire.

5. The wire breakage detection device based on the printer according to claim 4, wherein the shift link structure further comprises a swing rod portion; The swing rod part is provided with two groups, and the two groups of swing rod parts are symmetrically and correspondingly fixedly connected to the two sides of the connecting rod main body, and the two groups of swing rod parts and the two groups of transmission trigger pieces are correspondingly abutted at the end away from the wire path channel.

6. The wire breakage detection device based on the wire for printer according to claim 5, characterized in that, The slot photoelectric switch is fixedly connected to the base main body, and the slot photoelectric switch has a photoelectric detection end for linear detection of the shielding. When the swing rod part is in the initial state, the extension shielding part is outside the detection range of the photoelectric detection end, and when the swing rod part is forced to lift, the extension shielding part is inside the detection range of the photoelectric detection end. The photoelectric detection end indirectly amplifies the extension shielding part of the indexing connecting rod structure to complete the linear detection of the printing wire.

7. The wire breakage detection device based on the wire for printer according to claim 6, characterized in that, The indexing connecting rod structure further comprises a ferromagnetic block; The ferromagnetic block is arranged in the connecting rod main body; The reset magnetic attraction structure is fixedly connected to the base main body, and the reset magnetic attraction structure is correspondingly arranged with the ferromagnetic block. The reset magnetic attraction structure and the ferromagnetic block have different magnetic poles.

8. A method of detecting a breakage of a wire for a printer based on the wire breakage detection apparatus according to claim 7, characterized by, The steps include: The printing wire is inserted into the path channel corresponding to the wire inlet part of the assembly base structure, and the printing wire body is adaptively lifted with different amplitudes from the surface extension of the transmission trigger piece in the transmission trigger structure, so that the transmission trigger piece is adaptively slid along the guide slide in the transmission trigger structure away from the path channel corresponding to the wire inlet part. The swing rod part in the indexing connecting rod structure is correspondingly lifted by the force sliding of the transmission trigger piece. At this time, the connecting rod main body in the indexing connecting rod structure is adaptively indexed based on the shaft seat in the assembly base structure, and the extension shielding part in the indexing connecting rod structure is synchronously lifted based on the lifting displacement of the swing rod part to form a lever to further amplify its displacement amount, and the original linear change of the printing wire is amplified. At this time, the extension shielding part is inside the detection range of the photoelectric detection end in the slot photoelectric switch, and the linear detection of the printing wire is completed by the photoelectric detection end through the indirect amplification of the extension shielding part.

9. The broken material detection method according to claim 8, characterized by, The steps further include: When the printing wire has a breakpoint or is completely inserted, there is no lifting force of the wire, and the magnetic attraction is formed between the reset magnetic attraction structure in the assembly base structure and the ferromagnetic block in the indexing connecting rod structure, and the indexing connecting rod structure is automatically reset by the magnetic attraction. Thus, the slot photoelectric switch detects the breakpoint state or the completely inserted state of the printing wire.

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