CN113665113A - double-Z-axis synchronizing mechanism of 3D printer - Google Patents
double-Z-axis synchronizing mechanism of 3D printer Download PDFInfo
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- CN113665113A CN113665113A CN202110914056.8A CN202110914056A CN113665113A CN 113665113 A CN113665113 A CN 113665113A CN 202110914056 A CN202110914056 A CN 202110914056A CN 113665113 A CN113665113 A CN 113665113A
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- rod
- screw rod
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- wheel
- groove
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/227—Driving means
- B29C64/232—Driving means for motion along the axis orthogonal to the plane of a layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/245—Platforms or substrates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
Abstract
The application relates to a double-Z-axis synchronizing mechanism of a 3D printer, which comprises a portal frame consisting of two vertical rails and a cross beam, wherein the two vertical rails are respectively and rotatably connected with a lead screw, the lower end of the lead screw is connected with a driving motor, the two vertical rails are respectively and slidably connected with lifting traveling assemblies, the lifting traveling assemblies are respectively sleeved on the lead screw and are in threaded fit with the lead screw, and a printing head translation track is connected between the two lifting traveling assemblies; the upper ends of the two screw rods are respectively and coaxially connected with a synchronous wheel, and a lifting synchronous belt is wound on the two synchronous wheels; still including installing the mount pad on the crossbeam, sliding connection has the butt wheel on the mount pad, the periphery of butt wheel and synchronizing wheel parallel arrangement and butt wheel and the outer wall butt of lift hold-in range, still be provided with on the mount pad and adjust the butt wheel and keep away from or be close to the gliding adjustment mechanism of lift hold-in range. This application has the frictional force between stable lift hold-in range and the synchronizing wheel, improves the synchronous rotation precision of two lead screws to improve product quality's effect.
Description
Technical Field
The application relates to the field of 3D printers, in particular to a double-Z-axis synchronizing mechanism of a 3D printer.
Background
The 3D printing technology is an advanced manufacturing technology for manufacturing physical models, dies and parts by adopting a point-by-point or layer-by-layer forming method; the method is a novel manufacturing technology integrating advanced technologies such as material science, CAD/CAM, numerical control, laser and the like.
And the 3D printer Z axle construction on the market at present divide into single lead screw and two kinds of lead screws.
A3D printer Z axle construction among the correlation technique adopts two lead screw structures, utilizes to set up the synchronizing wheel respectively on two lead screws to and wind around rolling up the lift hold-in range on two synchronizing wheels, make its lift hold-in range realize the synchronous rotation of two lead screws, make it avoid two lead screws independent control to rotate, cause and beat printer head translation track slope's probability.
In the related art, the inventor thinks that the lifting synchronous belt inevitably looses along with long-time use in the transmission process of the lifting synchronous belt and the two synchronous wheels, and once the lifting synchronous belt looses, the transmission between the lifting synchronous belt and the two synchronous wheels is influenced, so that the differential rotation of the two screw rods can be caused, the inclination of the translation track of the printing head is caused, and the quality of a product printed by the 3D printing head is finally influenced.
Disclosure of Invention
In order to stabilize the friction force between the lifting synchronous belt and the synchronous wheel, the synchronous rotation precision of the two screw rods is improved, and the quality of a product is improved; the application provides a two Z axle lazytongs of 3D printer.
The application provides a two Z axle lazytongs of 3D printer adopts following technical scheme:
a double-Z-axis synchronizing mechanism of a 3D printer comprises a portal frame consisting of two vertical rails and a cross beam, wherein the two vertical rails are respectively and rotatably connected with a lead screw, the lower end of the lead screw is connected with a driving motor, the two vertical rails are respectively and slidably connected with lifting traveling assemblies, the lifting traveling assemblies are respectively sleeved on the lead screw and are in threaded fit with the lead screw, and a printing head translation track is connected between the two lifting traveling assemblies; the upper ends of the two screw rods are respectively and coaxially connected with a synchronous wheel, and a lifting synchronous belt is wound on the two synchronous wheels; still including installing the mount pad on the crossbeam, sliding connection has the butt wheel on the mount pad, the periphery of butt wheel and synchronizing wheel parallel arrangement and butt wheel and the outer wall butt of lift hold-in range, still be provided with on the mount pad and adjust the butt wheel and keep away from or be close to the gliding adjustment mechanism of lift hold-in range.
By adopting the technical scheme, any driving motor is started to drive the screw rods to rotate, so that the synchronous rotation of the two screw rods can be realized under the transmission action of the lifting synchronous belt and the synchronous wheel, the two screw rods can drive the lifting walking assembly to displace at the same time, the horizontal and stable vertical displacement of the translation track of the printing head is guaranteed, and the printing precision of the printing head is guaranteed;
when the lifting synchronous belt is gradually loosened, the abutting wheels can be driven to move towards one side of the lifting synchronous belt by using the adjusting mechanism, the lifting synchronous belt is abutted against the two synchronous wheels, and the transmission performance of the lifting synchronous belt and the synchronous wheels is kept, so that the two lead screws can be ensured to keep synchronous rotation, and the quality of a product printed by the printing head is improved;
in the process, the mounting seat is mounted on the cross beam, the butting wheel and the adjusting mechanism are conveniently integrated on the cross beam, and the mounting and dismounting work is conveniently carried out on the cross beam.
Optionally, one side of mount pad is fixed with limiting plate one, limiting plate two is under limiting plate one, the joint wheel coaxial rotation is connected with the center pin, limiting plate one, limiting plate two are seted up respectively and are supplied the center pin to peg graft and the gliding spacing groove of straight line, adjust the structure including set up respectively with the spacing inslot compression spring two, compression spring two is along self length direction parallel arrangement, and two one ends of compression spring are connected with the mount pad, and the other end is connected with one side that the lift hold-in range was kept away from to the center pin.
By adopting the technical scheme, the first limiting plate and the second limiting plate have a supporting function, and meanwhile, as the abutting wheels and the central shaft rotate, when the central shaft is inserted into the limiting groove, the abutting wheels can rotate along with the lifting synchronous belt, so that the resistance generated by the lifting synchronous belt is reduced;
utilize two compression springs two to give the elastic driving force of center pin simultaneously, make its butt wheel remain throughout towards the displacement power of lift hold-in range one side to the butt wheel can carry out the butt to lift hold-in range all the time, keeps supporting of lift hold-in range and synchronizing wheel tightly to be concerned.
Optionally, the adjusting mechanism further comprises a telescopic piece, the telescopic piece comprises a supporting seat mounted on the first limiting plate, a poking rod is connected in the supporting seat in a sliding manner along the length direction of the first limiting groove, and one end of the poking rod is connected with the central shaft; the side wall of one section of the poke rod in the support seat is also fixedly provided with a poke block, and the poke block is arranged in an isosceles trapezoid shape, the lower bottom of which is fixed with the poke rod, so that the two side surfaces of the poke block along the length direction of the poke rod are arranged in inclined planes; an accommodating groove is formed in the supporting seat, and the poking block is positioned in the accommodating groove; still correspond two inclined planes of stirring piece in the holding tank and be provided with respectively and promote a piece one, promote a piece two, promote a piece one, promote a piece two respectively with the inclined plane butt of stirring piece, still be provided with in the supporting seat and order about and promote a piece one, promote the perpendicular slide bar length direction displacement's of a piece silk member of piece two.
By adopting the technical scheme, when the elastic action of the second compression spring disappears gradually, or the elasticity of the second compression spring cannot support the abutting wheel tightly on the lifting synchronous belt, the usable driving rod is connected with one end of the central shaft, and then the wire rod piece is manually driven to work, the first pushing block and the second pushing block are driven to synchronously and reversely displace, the first pushing block, the second pushing block and the shifting block generate inclined surface transmission, the shifting rod is driven to linearly displace, so that the central shaft and the abutting wheel are driven to displace, and the first pushing block and the second pushing block are always abutted against the inclined surface of the shifting block, so that when the driving of the wire rod piece by external force is relieved, the shifting rod is limited to be fixed, the abutting wheel can be limited to a state of supporting the lifting synchronous belt, and the supporting force of the lifting synchronous belt and the synchronous wheel is further ensured.
Optionally, the screw rod piece comprises a first screw rod and a second screw rod which are perpendicular to the length direction of the toggle rod, the first screw rod and the second screw rod are rotatably connected in the supporting seat, the first screw rod penetrates through the toggle block and is in threaded fit with the first toggle block, and the second screw rod penetrates through the toggle block and is in threaded fit with the second toggle block.
By adopting the technical scheme, under the screw thread matching action of the first shifting block and the first screw rod and the screw thread matching action of the second shifting block and the second screw rod, when the first screw rod and the second screw rod are driven to rotate, the linear displacement work of the first shifting block and the second shifting block can be realized.
Optionally, the first screw rod and the second screw rod have the same thread direction, and gears are respectively and coaxially fixed on the first screw rod and the second screw rod and are meshed with each other; one end of the first screw rod or the second screw rod extends out of the supporting seat, and a hand wheel is fixed at the extending end.
By adopting the technical scheme, the synchronous reverse rotation of the first screw rod and the second screw rod is realized by utilizing gear engagement, and then under the action that the screw thread directions of the first screw rod and the second screw rod are opposite, the synchronous reverse displacement of the first poking block and the second poking block can be realized only by driving the first screw rod or the second screw rod to rotate by a worker, so that the pushing work of the worker on the first poking block and the second poking block is facilitated.
Optionally, the poke rod comprises a first rod and a second rod, the first rod is located in the supporting seat, one end of the second rod is detachably connected with the first rod, and the other end of the second rod is sleeved at one end of the central shaft.
Through adopting above-mentioned technical scheme, cup joint two one ends of pole and center pin, another end and a pole detachable connection make it connect poker rod and center pin according to the demand, perhaps remove center pin and the being connected of poker rod, make it can be according to the lax state of lift hold-in range, and adopt different modes to order about the butt wheel and support tightly on the lift hold-in range.
Optionally, a positioning block is fixed at the lower end of the supporting seat, a positioning groove with one side being an opening and allowing the limiting block to be inserted is formed in the upper end face of the limiting plate, and the cross section of the positioning block along the length direction of the limiting groove is in a trapezoidal arrangement with a narrow upper part and a wide lower part.
Through adopting above-mentioned technical scheme, utilize the grafting relation of the relative constant head tank of locating piece, can realize the releasable connection of the relative limiting plate one of mount pad, and then peg graft the perpendicular locating piece slip direction of two poles in the center pin to be connected with pole one, make its mount pad receive the spacing in a plurality of positions, with stable the installing of mount pad on limiting plate one, thereby can install the extensible member on limiting plate one or dismantle on limiting plate one according to the actual demand.
Optionally, a T-shaped block is fixed at one end of the second rod, and a T-shaped groove for the T-shaped block to be inserted from top to bottom is formed in the upper end face of the first rod.
Through adopting above-mentioned technical scheme, utilize the grafting cooperation in T type piece and T type groove, realize the stable connection of pole two and pole one.
Optionally, the mounting seat is composed of a transverse part and a longitudinal part which are mutually perpendicular and connected, the longitudinal part is connected with the first limiting plate, a fixing groove which is vertically communicated is formed in the upper end of the longitudinal part, a fixing plate is linearly connected in a sliding manner in the fixing groove, and a protruding part is formed on one side, facing the vertical part, of the fixing plate; and a positioning piece for limiting the fixing plate is arranged on the transverse part.
Through adopting above-mentioned technical scheme, because the crossbeam comprises the section bar, four sides of section bar possess type groove, cup joint the mount pad on the crossbeam earlier, driving about the fixed plate and sliding along the fixed slot, make its bulge butt in type inslot, carry on spacingly to the fixed plate through the setting element again, make its mount pad under the clamping action of longitudinal portion and fixed plate and crossbeam, on the stable crossbeam that is fixed in, make things convenient for the dismouting work of mount pad relative crossbeam, and can be fixed in crossbeam length direction's optional position with the mount pad.
Optionally, the positioning element comprises a first compression spring which is arranged in the fixing groove and parallel to the length direction of the fixing groove, and one end of the first compression spring is connected with one side of the fixing plate, which is far away from the protruding part; a lug is further fixed at the upper end of the fixing plate, an insertion rod is inserted into the lug, and a jack for inserting the insertion rod is correspondingly formed in the transverse part of the lug; when the convex part of the fixing plate is abutted to the shaped groove of the cross beam, the inserted bar is in inserted fit with the insertion hole.
Through adopting above-mentioned technical scheme, utilize compression spring one to order about the fixed plate towards the displacement force of longitudinal part one side, reuse inserted bar to pass the lug and peg graft in the jack, realize the restriction to the fixed plate, make its fixed plate keep the tight work of support to the crossbeam, this kind of mode easy operation.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the lifting synchronous belt is gradually loosened, the abutting wheels can be driven to move towards one side of the lifting synchronous belt by using the adjusting mechanism, the lifting synchronous belt is abutted against the two synchronous wheels, and the transmission performance of the lifting synchronous belt and the synchronous wheels is kept, so that the two lead screws can be ensured to keep synchronous rotation, and the quality of a product printed by the printing head is improved;
2. utilize the clamping force of fixed plate and longitudinal part 82 to the crossbeam, spacing the mount pad on the crossbeam, make things convenient for the dismouting work of mount pad, can be fixed in crossbeam length direction's optional position with the mount pad simultaneously, can be according to actual demand with dismouting on the crossbeam such as butt joint wheel, adjustment mechanism.
Drawings
Fig. 1 is an overall structural diagram of the related art.
Fig. 2 is an overall structure schematic diagram of a double-Z-axis synchronization mechanism of a 3D printer according to an embodiment of the present application.
Fig. 3 is a schematic structural view of the mounting seat and the adjusting mechanism in fig. 2.
Fig. 4 is a front view of fig. 3.
Fig. 5 is a schematic view of the structure of the telescopic member of fig. 3.
Fig. 6 is a schematic front view of the telescoping member of fig. 5.
Description of reference numerals: 1. a print head translation track; 2. a lifting walking component; 3. a 3D print head; 4. a gantry; 41. erecting a rail; 42. a cross beam; 5. a drive motor; 6. a screw rod; 7. lifting a synchronous belt; 8. a mounting seat; 81. a transverse portion; 82. a longitudinal portion; 9. an adjustment mechanism; 91. a second compression spring; 92. a supporting seat; 93. a poke rod; 931. a first rod; 932. a second rod; 94. a chute; 95. a shifting block; 96. a first pushing block; 97. a second pushing block; 98. a wire rod member; 981. a first screw rod; 982. a second screw rod; 983. a gear; 984. a hand wheel; 99. accommodating grooves; 10. fixing grooves; 11. a fixing plate; 12. a convex portion; 13. a bump; 14. inserting a rod; 15. a first compression spring; 16. a first limiting plate; 17. a second limiting plate; 18. a limiting groove; 19. a T-shaped block; 20. a T-shaped groove; 21. a butting wheel; 22. a central shaft; 23. positioning blocks; 24. and (6) positioning a groove.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The related technology comprises the following steps: the utility model provides a two Z axle lazytongs of 3D printer, refer to fig. 1, including portal frame 4, beat printer head translation track 1, the printer head 3 is beaten to lift walking subassembly 2 and 3D, portal frame 4 includes the upright rail 41 of both sides and the crossbeam 42 of being connected with coexistence rail 41 top, driving motor 5 is installed respectively to the lower part of founding rail 41, driving motor 5 is connected with one respectively and founds rail 41 parallel arrangement's lead screw 6, lift walking subassembly 2 is provided with two sets of respectively corresponding sliding on founding rail 41, and lift walking subassembly 2 respectively with correspond lead screw 6 threaded connection, beat printer head translation track 1's both ends and be connected with the lift walking subassembly 2 of both sides, 3D beats printer head 3 and installs on beating printer head translation track 1. Meanwhile, the upper ends of the two screw rods 6 are respectively fixed with a synchronous wheel, the two synchronous wheels are wound with a same lifting synchronous belt 7, and the lifting synchronous belt 7 realizes the synchronous rotation work of the two screw rods 6; when realizing beating printer head translation track 1Z axle displacement, driving motor 5 drives lead screw 6 and rotates, orders about to beat printer head translation track 1 along 41 length direction displacements in the vertical rail, realizes 3D and beats printer head 3's Z axle direction displacement, and 3D beats printer head 3 simultaneously and can follow printer head translation track 1 displacement, realizes that 3D beats printer head 3 along the displacement of Y axle.
The embodiment of the application discloses two Z axle lazytongs of 3D printer, refer to fig. 2, including portal frame 4, beat printer head translation track 1, lift traveling module 2 and 3D beat printer head 3, portal frame 4 includes the upright rail 41 of both sides and the crossbeam 42 of being connected with coexistence rail 41 top, driving motor 5 is installed respectively to the lower part of founding rail 41, driving motor 5 is connected with one respectively and founds rail 41 parallel arrangement's lead screw 6, lift traveling module 2 is provided with two sets of respectively corresponding sliding on founding rail 41, and lift traveling module 2 respectively with correspond lead screw 6 threaded connection, beat printer head translation track 1's both ends and be connected with the lift traveling module 2 of both sides, 3D beats printer head 3 and installs on beating printer head translation track 1. Meanwhile, the upper ends of the two screw rods 6 are respectively fixed with a synchronous wheel, the two synchronous wheels are wound with a same lifting synchronous belt 7, and the lifting synchronous belt 7 realizes the synchronous rotation work of the two screw rods 6; when realizing beating printer head translation track 1Z axle displacement, driving motor 5 drives lead screw 6 and rotates, orders about to beat printer head translation track 1 along 41 length direction displacements in the vertical rail, realizes 3D and beats printer head 3's Z axle direction displacement, and 3D beats printer head 3 simultaneously and can follow printer head translation track 1 displacement, realizes that 3D beats printer head 3 along the displacement of Y axle.
Referring to fig. 3 and 4, the cross beam 42 is sleeved with the mounting seat 8, the mounting seat 8 comprises a transverse portion 81 and a longitudinal portion 82 which are fixed perpendicular to each other, the transverse portion 81 abuts against the upper end of the cross beam 42, and the longitudinal portion 82 is located between the cross beam 42 and the lifting synchronous belt 7; the upper end of the transverse part 81 is provided with a fixing groove 10 which penetrates through the upper part and the lower part, the fixing groove 10 is arranged perpendicular to the length direction of the cross beam 42, the fixing plate 11 is connected in the fixing groove 10 in a sliding manner, the lower end of the fixing plate 11 extends into a section groove of the cross beam 42, a protruding part 12 is arranged at one section of the section groove and faces one side of the longitudinal part 82, and the lower end of the protruding part 12 is arranged in an inclined plane; a first compression spring 15 is fixed between one side of the fixing plate 11, which is far away from the longitudinal portion 82, and the fixing groove 10, the first compression springs 15 are arranged in parallel along the length direction of the fixing groove 10 and are provided with two groups, and the other end of the first compression spring 15 is fixed on the side wall of the fixing groove 10 and gives a displacement acting force to the fixing plate 11 towards one side of the longitudinal portion 82; the two sides of the upper end of the fixed plate 11 along the length direction of the cross beam 42 are respectively fixed with a convex block 13, an inserting rod 14 is inserted in the convex block 13, the transverse part 81 is correspondingly provided with an inserting hole, when the convex part 12 is completely tightly propped against the groove, the inserting rod 14 can be inserted in the inserting hole to limit the fixed plate 11, and the mounting seat 8 is limited on the cross beam 42;
referring to fig. 4 and 5, a first limiting plate 16 and a second limiting plate 17 are further vertically fixed on one side of the longitudinal portion 82 away from the cross beam 42, the second limiting plate 17 is located right below the first limiting plate, a butting wheel 21 is further arranged between the first limiting plate 16 and the second limiting plate 17, the butting wheel 21 is arranged in parallel with the guide wheel, and the circumferential surface of the butting wheel 21 is butted against the outer wall of the lifting synchronous belt 7; the first limit plate 16 is also provided with an adjusting mechanism 9 for driving the abutting wheel 21 to linearly slide.
The abutting wheel 21 is coaxially and rotatably connected with a central shaft 22, the first limiting plate 16 and the second limiting plate 17 are respectively provided with a limiting groove 18 which is parallel to the length direction of the fixing groove 10, the lower end of the limiting groove 18 of the second limiting plate 17 is arranged in a closed manner, two ends of the central shaft 22 are respectively arranged in the limiting grooves 18 of the first limiting plate 16 and the second limiting plate 17 in a penetrating manner, and a square block is fixed on a section of the central shaft 22 in the limiting groove 18; above-mentioned adjustment mechanism 9 includes two compression spring 91, and two compression spring 91 are in two spacing inslots 18 respectively, and along the length direction parallel arrangement of spacing groove 18, and the one end of two compression spring 91 is fixed with the one end that lift hold-in range 7 was kept away from to square piece, and the other end is partial with longitudinal segment 82, gives the displacement power of butt-joint wheel 21 towards lift hold-in range 7 one side, keeps butt-joint wheel 21 to support lift hold-in range 7 tightly in the state of synchronizing wheel.
Referring to fig. 3 and 4, in the present embodiment, the length of the second limiting plate 17 is smaller than the distance between the longitudinal portion 82 and the lifting synchronous belt 7, and the first limiting plate 16 is longer than the second limiting plate 17 and extends partially onto the lifting synchronous belt 7; referring to fig. 5 and 6, the adjusting mechanism 9 further includes an extensible member, the extensible member includes a supporting seat 92, the supporting seat 92 is mounted at the upper end of the first limiting plate 16, a sliding groove 94 is formed in the supporting seat 92, the sliding groove 94 is arranged in parallel along the length direction of the first limiting groove 18, a poking rod 93 is inserted in the sliding groove 94, one end of the poking rod 93 is connected with the upper end of the central shaft 22, a poking block 95 is fixed at the upper end of a section of the poking rod 93 located in the sliding groove 94, the poking block 95 is in an isosceles trapezoid shape with the lower bottom fixed with the poking rod 93, so that two sides of the poking block 95 along the length direction of the poking rod 93 are in an inclined plane shape, an accommodating groove 99 is further formed in the supporting seat 92, and the accommodating groove 99 is communicated with the sliding groove 94 and is used for accommodating the poking block 95; a first pushing block 96 and a second pushing block 97 are respectively arranged in the accommodating groove 99 corresponding to the two inclined surfaces of the toggle block 95, the first pushing block 96 and the second pushing block 97 are kept in abutting connection with the inclined surfaces of the toggle block 95, in an initial state, the first pushing block 96 is far away from one side of the toggle rod 93, and the second pushing block 97 is close to one side of the toggle block 95; the support seat 92 is also provided with a screw rod 98 for driving the first pushing block 96 and the second pushing block 97 to move linearly close to or far away from one side of the poke rod 93.
The screw rod piece 98 comprises a first screw rod 981 and a second screw rod 982 which are arranged in parallel, the first screw rod 981 is arranged perpendicular to the length direction of the poke rod 93, the first screw rod 981 penetrates through the first push block 96 and is in threaded fit with the first push block 96, and the second screw rod 982 penetrates through the second push block 97 and is in threaded fit with the second push block 97; wherein, the side wall of the first pushing block 96 and the second pushing block 97 away from each other is abutted against the inner wall straight surface of the accommodating groove 99. In order to better drive the first pushing block 96 and the second pushing block 97 to work, the thread directions of the first screw rod 981 and the second screw rod 982 are the same, the first screw rod 981 and the second screw rod 982 are respectively and coaxially fixed with a gear 983, the two gears 983 are meshed, one end of the first screw rod 981 extends out of the supporting seat 92, and the extending end of the first screw rod 981 is coaxially fixed with a hand wheel 984. The first screw rod 981 and the second screw rod 982 are driven to rotate by the hand wheel 984, the first pushing block 96 and the second pushing block 97 are driven to synchronously and reversely displace, the poke rod 93 is driven to drive the central shaft 22 to linearly displace, and the abutting effect of the abutting wheel 21 on the lifting synchronous belt 7 is changed.
A positioning block 23 is fixed at the lower end of the supporting seat 92, the section of the positioning block 23 along the length direction of the limiting groove 18 is in a trapezoidal arrangement with a narrow upper part and a wide lower part, a positioning groove 24 with the same section as that of the positioning block 23 is arranged at the upper end of the first limiting plate 16 and perpendicular to the length direction of the limiting groove 18, and one side of the positioning groove 24, which is used for disposing the limiting groove 18 in the length direction, is provided with an opening and the other side is arranged in a closed manner; the poke rod 93 is composed of a first rod 931 and a second rod 932, the first rod 931 is positioned in the sliding groove 94, one end of the second rod 932 is provided with a through hole sleeved on the central shaft 22, the other end of the second rod 932 is fixed with a T-shaped block 19, and the upper end of the first rod 931 is provided with a T-shaped groove 20 with a closed lower end; after the positioning block 23 is slid into the positioning groove 24, the second rod 932 is sleeved in the central shaft 22 and the first rod 931 from top to bottom, so that the support seat 92 is limited, and the poke rod 93 is connected with the central shaft 22.
The implementation principle of the double-Z-axis synchronizing mechanism of the 3D printer is as follows: firstly, the mounting seat 8 is inserted into the cross beam 42 from the upper part of the cross beam 42, in the inserting process, the inclined surface of the convex part 12 is abutted against the cross beam 42 to generate inclined surface transmission to drive the fixing plate 11 to linearly displace until the fixing plate 11 is inserted into the groove, the fixing plate 11 is driven to displace towards one side of the longitudinal part 82 and abut against the side wall of the groove under the elastic action of the first compression spring 15, then the inserting rod 14 is inserted into the lug 13 and the inserting hole, and the mounting seat 8 is limited on the cross beam 42; at the moment, the abutting wheel 21 keeps abutting action on the outer wall of the lifting synchronous belt 7 under the elastic action of the second compression spring 91, and the lifting synchronous belt 7 and the synchronous wheel keep abutting work;
when the elasticity of the second compression spring 91 is insufficient, the positioning block 23 of the support seat 92 can slide into the positioning groove 24, the second rod 932 is sleeved in the central shaft 22 and the first rod 931 from below, the first screw rod 981 and the second screw rod 982 are driven to rotate through the hand wheel 984, the first pushing block 96 and the second pushing block 97 are driven to synchronously and reversely displace, the poke rod 93 is driven to drive the central shaft 22 to linearly displace, the butting wheel 21 is further abutted to the lifting synchronous belt 7, and the abutting work of the lifting synchronous belt 7 and the synchronous wheel is kept.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A double-Z-axis synchronizing mechanism of a 3D printer comprises a portal frame (4) composed of two vertical rails (41) and a cross beam (42), wherein the two vertical rails (41) are respectively and rotatably connected with a screw rod (6), the lower end of the screw rod (6) is connected with a driving motor (5), the two vertical rails (41) are respectively and slidably connected with lifting traveling assemblies (2), the lifting traveling assemblies (2) are respectively sleeved on the screw rod (6) and are in threaded fit with the screw rod (6), and a printing head translation track (1) is connected between the two lifting traveling assemblies (2); the upper ends of the two screw rods (6) are respectively and coaxially connected with synchronous wheels, and lifting synchronous belts (7) are wound on the two synchronous wheels; the method is characterized in that: still including installing mount pad (8) on crossbeam (42), sliding connection has butt joint wheel (21) on mount pad (8), butt joint wheel (21) and synchronizing wheel parallel arrangement and butt joint wheel (21) the periphery and the outer wall butt of lift hold-in range (7), still be provided with on mount pad (8) and adjust butt joint wheel (21) and keep away from or be close to the gliding adjustment mechanism (9) of lift hold-in range (7).
2. The dual-Z-axis synchronization mechanism of the 3D printer according to claim 1, wherein: one side of mount pad (8) is fixed with limiting plate one (16), two (17) of limiting plate are in under limiting plate one (16), the butt joint wheel (21) coaxial rotation is connected with center pin (22), limiting plate one (16), two (17) of limiting plate have been seted up respectively and have been supplied center pin (22) to peg graft and straight line gliding spacing groove (18), adjust the structure including setting up respectively with two (91) compression spring in spacing groove (18), compression spring two (91) are along self length direction parallel arrangement, and two (91) one end of compression spring is connected with mount pad (8), and the other end is connected with one side that lift hold-in range (7) was kept away from to center pin (22).
3. The dual-Z-axis synchronization mechanism of the 3D printer according to claim 2, wherein: the adjusting mechanism (9) further comprises an extensible part, the extensible part comprises a supporting seat (92) installed on the first limiting plate (16), a poking rod (93) is connected in the supporting seat (92) in a sliding mode along the length direction of the limiting groove (18), and one end of the poking rod (93) is connected with the central shaft (22); a shifting block (95) is further fixed on one section of the side wall of the shifting rod (93) in the supporting seat (92), the lower bottom of the shifting block (95) is in an isosceles trapezoid shape fixed with the shifting rod (93), and two side surfaces of the shifting block (95) along the length direction of the shifting rod (93) are in inclined plane arrangement; an accommodating groove (99) is formed in the supporting seat (92), and the toggle block (95) is positioned in the accommodating groove (99); still be provided with in holding tank (99) and promote piece one (96), promote piece two (97) respectively corresponding two inclined planes of stirring piece (95), promote piece one (96), promote piece two (97) respectively with the inclined plane butt of stirring piece (95), still be provided with in supporting seat (92) and order about and promote piece one (96), promote piece two (97) perpendicular poker rod (93) length direction displacement's silk member (98).
4. The dual Z-axis synchronization mechanism of a 3D printer according to claim 3, wherein: the screw rod piece (98) comprises a first screw rod (981) and a second screw rod (982) which are arranged in the length direction of the vertical poking rod (93), the first screw rod (981) and the second screw rod (982) are rotatably connected into the supporting seat (92), the first screw rod (981) penetrates through the poking block (95) and is in threaded fit with the poking block (95), and the second screw rod (982) penetrates through the poking block (95) and is in threaded fit with the poking block (95).
5. The dual Z-axis synchronization mechanism of a 3D printer according to claim 4, wherein: the thread directions of the first screw rod (981) and the second screw rod (982) are the same, gears (983) are coaxially fixed to the first screw rod (981) and the second screw rod (982) respectively, and the two gears (983) are meshed; one end of the first screw rod (981) or the second screw rod (982) extends out of the supporting seat (92), and a hand wheel (984) is fixed at the extending end.
6. The dual Z-axis synchronization mechanism of a 3D printer according to any one of claims 3-5, wherein: the poke rod (93) comprises a first rod (931) and a second rod (932), the first rod (931) is located in the supporting seat (92), one end of the second rod (932) is detachably connected with the first rod (931), and the other end of the second rod is sleeved at one end of the central shaft (22).
7. The dual Z-axis synchronization mechanism of a 3D printer according to claim 6, wherein: the supporting seat is characterized in that a positioning block (23) is fixed at the lower end of the supporting seat (92), a positioning groove (24) with one side being an opening and used for inserting the limiting block is formed in the upper end face of the first limiting plate (16), and the cross section of the positioning block (23) along the length direction of the limiting groove (18) is in a trapezoidal arrangement with a narrow upper portion and a wide lower portion.
8. The dual Z-axis synchronization mechanism of a 3D printer according to claim 6, wherein: and a T-shaped block (19) is fixed at one end of the second rod (932), and a T-shaped groove (20) for inserting the T-shaped block (19) from top to bottom is formed in the upper end surface of the first rod (931).
9. The dual-Z-axis synchronization mechanism of the 3D printer according to claim 1, wherein: the mounting seat (8) is composed of a transverse part (81) and a longitudinal part (82) which are mutually and vertically connected, the longitudinal part (82) is connected with the first limiting plate (16), the upper end of the longitudinal part (82) is provided with a fixing groove (10) which is through up and down, a fixing plate (11) is linearly connected in a sliding manner in the fixing groove (10), and a protruding part (12) is formed on one side of the fixing plate (11) facing to the vertical part; the transverse part (81) is provided with a positioning piece for limiting the fixing plate (11).
10. The dual Z-axis synchronization mechanism of a 3D printer according to claim 9, wherein: the positioning piece comprises a first compression spring (15) which is arranged in the fixing groove (10) and is parallel to the length direction of the fixing groove (10), and one end of the first compression spring (15) is connected with one side, far away from the protruding part (12), of the fixing plate (11); a convex block (13) is further fixed at the upper end of the fixing plate (11), an inserting rod (14) is inserted into the convex block (13), and a jack for inserting the inserting rod (14) is correspondingly formed in the transverse part (81); when the convex part (12) of the fixing plate (11) abuts against the shaped groove of the cross beam (42), the plug rod (14) is in plug fit with the plug hole.
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| CN202110914056.8A CN113665113A (en) | 2021-08-10 | 2021-08-10 | double-Z-axis synchronizing mechanism of 3D printer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110914056.8A CN113665113A (en) | 2021-08-10 | 2021-08-10 | double-Z-axis synchronizing mechanism of 3D printer |
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| CN114633473A (en) * | 2022-03-12 | 2022-06-17 | 深圳市优特打印耗材有限公司 | Print shower nozzle and use this 3D who prints shower nozzle to print and equip |
| CN114714621A (en) * | 2022-04-18 | 2022-07-08 | 涂征宇工业设计温州有限公司 | In-plane rod sliding mechanism |
| CN117183326A (en) * | 2023-09-25 | 2023-12-08 | 江苏海洋大学 | Novel super-elastic bone material 3D printing equipment |
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| CN117183326B (en) * | 2023-09-25 | 2024-03-01 | 江苏海洋大学 | Super-elastic bone material 3D printing equipment |
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