CN211493370U - Driving device with meshing anti-loosening mechanism and printer - Google Patents

Abstract

The utility model belongs to the technical field of the meshing drive, solved among the prior art not hard up easy not hard up technical problem of gear and rack toothing, provided a drive arrangement and printing apparatus with meshing locking mechanism, there is meshing locking mechanism's drive arrangement to include: a driving motor having a rotation shaft; the gear is fixedly connected with the rotating shaft; a rack engaged with the gear; the driving bracket comprises a fixed platform with a first support plate, a fixed plate fixedly connected with a driving motor is fixed on the fixed platform, and the fixed platform and the fixed plate are provided with through holes for the rotating shaft to pass through; and the pressing piece is fixedly connected with the first supporting plate, and the pressing force applied by the free end to the fixing plate is vertical to the projection of the rack to the plane where the fixing plate is located. The utility model provides a drive arrangement and printing apparatus with meshing locking mechanism can prevent not hard up of gear and rack toothing to obtain the meshing transmission of high reliability.

Description

Driving device with meshing anti-loosening mechanism and printer

Technical Field

The utility model relates to an engagement drive technical field particularly, relates to drive arrangement and printer with meshing locking mechanism.

Background

Adopt the driven drive arrangement of meshing of gear and rack to be applied to among the power transmission widely, take place to become flexible and will lead to the reduction of power transmission efficiency even transmission inefficacy if the meshing of gear and rack, for example, the driving motor of printer crossbeam one side of printer can arouse the slight vibration of the fixed part of fixed and this driving motor drive connected gear until causing the not hard up of fixed part, and then arouse the not hard up of gear and rack meshing, make meshing transmission reliability reduce, thereby cause the speed and the distance of printer crossbeam motion to produce unusually, the printing quality of printer has been reduced.

Therefore, it is highly desirable to provide a driving device having a meshing loosening prevention mechanism and a printing apparatus capable of preventing the backlash of the meshing between the gear and the rack and ensuring high reliability of the meshing transmission.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the not enough of above-mentioned prior art, for realizing the utility model discloses an aim at, a drive arrangement with meshing locking mechanism is provided, it includes: a driving motor having a rotation shaft; the gear is fixedly connected with the rotating shaft; a rack engaged with the gear; the driving bracket comprises a fixed platform with a first support plate, a fixed plate fixedly connected with a driving motor is fixed on the fixed platform, and the fixed platform and the fixed plate are provided with through holes for the rotating shaft to pass through; and the pressing piece is fixedly connected with the first supporting plate, and the pressing force applied by the free end to the fixing plate is vertical to the projection of the rack to the plane where the fixing plate is located.

Furthermore, a plurality of pairs of threaded connecting holes are formed in the fixed plate and the bedplate of the fixed table, and the plurality of threaded pieces are fixedly connected with the plurality of pairs of threaded connecting holes respectively.

Furthermore, a boss is arranged at one end, close to the first support plate, of the fixing plate, and the free end of the pressing piece exerts pressing force on the boss.

Furthermore, the pressing part comprises a screw head, a threaded rod and a nut, the first supporting plate is provided with a threaded hole, and the nut screwed on the threaded rod is abutted against the first supporting plate so as to keep the free end of the threaded rod against the fixing plate.

Further, the pressing member is provided in plural, and arranged at equal intervals in a direction parallel to the extending direction of the rack.

Furthermore, the periphery of the rotating shaft is sleeved with a shaft sleeve, a plurality of pairs of fixing holes are formed in the shaft sleeve and the fixing plate, and a plurality of fixing pieces are fixedly connected with the plurality of pairs of fixing holes.

Furthermore, the driving support comprises a supporting leg which is connected with the fixed platform and provided with a protrusion, the rack is arranged on the rack, a convex rail with a guide groove is arranged on the rack, the convex rail is parallel to the rack, and the protrusion is clamped in the guide groove.

Furthermore, the driving support further comprises a second support plate which is parallel to the first support plate and is arranged at an interval, the fixing plate is located between the first support plate and the second support plate, and the projection of the second support plate on the convex rail towards the rack is located.

In order to realize the utility model discloses another purpose, the utility model discloses still provide a printer, it includes the printer crossbeam, prints dolly and above arbitrary drive arrangement who has meshing locking mechanism, prints dolly movably and supports on the guide rail of printer crossbeam, driving motor drive printer crossbeam motion.

Furthermore, the printer comprises a frame, a printing platform is arranged on the frame, a driving device is respectively arranged at two parallel side parts of the frame and two ends of a cross beam of the printer, a driving support is arranged on the cross beam of the printer, a rack and a convex rail with a guide connecting groove are respectively arranged on the two parallel side parts, the driving support is provided with a support leg with a protrusion, and the corresponding protrusion and the guide connecting groove are mutually clamped.

The utility model has the advantages that: the gear and the rack can always keep a good meshing state by acting the pressure on the fixing plate all the time, and the looseness of meshing of the gear and the rack is prevented, so that the driving device with the meshing anti-loosening mechanism and the printing equipment can be ensured to obtain high-reliability meshing transmission.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, without creative efforts, other drawings can be obtained according to these drawings, and these drawings are all within the protection scope of the present invention.

Fig. 1 is a front view of the printer of the present invention (with part of the printing platform hidden);

fig. 2 is a side view of the printer of the present invention showing the internal structure;

FIG. 3 is a top view of the printer cross beam of the present invention with portions omitted;

FIG. 4 is a cross-sectional view taken along line C of FIG. 3;

FIG. 5 is a front view showing a first reinforcing bead and a second reinforcing bead in an interior portion of a cross member of the printer;

FIG. 6 is an enlarged view of a portion of FIG. 1 at B;

fig. 7 is a front view of the pressing member of the driving device with the meshing locking mechanism of the present invention;

FIG. 8 is a front view of the splicing frame of the printer of the present invention;

FIG. 9 is an enlarged view of a portion of FIG. 8 at D;

FIG. 10 is a front view of the longitudinal frame of the splicing frame of the printer according to the present invention;

FIG. 11 is a front view of the longitudinal support plate of the splicing frame of the printer according to the present invention;

fig. 12 is a bottom view of the present invention;

FIG. 13 is an enlarged view of a portion of FIG. 1 at A;

description of reference numerals:

10. a printer beam; 11. a beam body; 11A, a hollow portion; 11B, a first reinforcing rib; 11C, a second reinforcing rib; 12. a drive bracket; 12A, a fixed table; 12B, a support leg; 12B1, bumps; 12C, a first support plate; 12D, fixing plates; 12D1, boss; 12E, a bottom table; 12E, a shaft sleeve; 12F, a second support plate; 20. a frame; 21A, a first transverse bottom beam; 21B, a second transverse bottom beam; 22. a longitudinal connecting frame; 22A, a first support; 22B, a straight pipe; 22C, a first rectangular tube; 22D, connecting blocks; 23. a longitudinal support plate; 23A, a second support; 23B, a second rectangular tube; 24. a clamping block; 25. a reinforcing block; 26. a support pillar; 27. supporting the connecting block; 28. a rack; 29. a raised rail; 29A, a guide connection groove; 30. a platen; 31. opening a hole; 32. a connecting buckle; 33. a stent body; 33A, a bracket foot; 34. a connecting plate; 34A, a connecting hole; 35. a reinforcing bar; 36. connecting sheets; 37. an air suction hole; 40. a drive motor; 50. a gear; 60. a pressing member; 61. a screw head; 62. a threaded rod; 63. a nut; 70. an ink cartridge accommodating frame; 71. accommodating grooves; 72. a display section; 80. printing the trolley; 90. an ink cartridge.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element. In case of conflict, various features of the embodiments and examples of the present invention may be combined with each other and are within the scope of the present invention.

Referring to fig. 1 to 13, the present invention provides a printer, in general, this printer utilizes crossbeam drive arrangement to drive the crossbeam that is located the frame so that arrange the printing dolly of the guide rail on the crossbeam for the print platform motion to the printing dolly receives the ink supply of the ink horn that sets up on the crossbeam to carry out the inkjet to the print medium on the print platform, what this printer includes respectively is as follows: the printer beam and its beam driving device, the meshing anti-loosing mechanism of the driving device, the splicing machine frame, the splicing printing platform and the printer ink supply device are described in detail. It should be noted that the present invention is focused on protection of a drive device having a meshing locking mechanism and a printer having the drive device.

Printer beam

Referring to fig. 1, 3 to 5, the printer beam 10 includes a beam body 11 having a hollow portion 11A, in which a first reinforcing rib 11B and a second reinforcing rib 11C are provided, each of which is fixed to an inner wall of the beam body 11, the first reinforcing ribs 11B being two pairs and each extending in a first direction parallel to a central axis of the hollow portion 11A and being symmetrically disposed with respect to the central axis, it being understood that the central axis is perpendicular to a moving direction of the printer beam 10, the second reinforcing ribs 11C being a plurality of and fixed to each of the first reinforcing ribs 11B in a second direction perpendicular to the first direction, the plurality of second reinforcing ribs 11C being equally spaced in the first direction, so that rigidity and bending resistance of the printer beam 10 in the axial direction can be improved by disposing the four first reinforcing ribs 11B at central positions of the four inner walls of the beam body 11 in the first direction, respectively, and, through set up a plurality of second strengthening rib 11C that fix mutually with each first strengthening rib 11B in the second direction perpendicular to first direction equidistant along first direction, can improve rigidity and bending resistance of printer crossbeam 10 in the longitudinal direction, consequently, improved the holistic rigidity and bending resistance of printer crossbeam 10 to guaranteed the normal work of printer and had fine printing effect.

Referring to fig. 4, specifically, the cross section of the hollow portion 11A is square, and the four first reinforcing ribs 11B pass through four central points of the square, respectively, and since the cross section of the hollow portion 11A is symmetrical square, the four first reinforcing ribs 11B can provide symmetrical reinforcing force capable of improving rigidity and bending resistance to the entire cross beam body 11.

As an embodiment of the second reinforcing rib 11C, the second reinforcing rib 11C includes four L-shaped reinforcing ribs, each L-shaped reinforcing rib is fixed between two adjacent first reinforcing ribs 11B, the four L-shaped reinforcing ribs surround into a hollow square, that is, each L-shaped reinforcing rib and the first reinforcing rib 11B are fixed with the inner wall of the beam body 11 and support the inner wall of the beam body 11, therefore, the second reinforcing rib 11C adopting the four L-shaped reinforcing ribs is simple in structure and convenient to fix with the first reinforcing rib 11B, and the L-shaped reinforcing ribs are easy to manufacture and process, thereby reducing the cost of the second reinforcing rib 11C.

Further, the width of the L-shaped reinforcing rib is equal to the width of the first reinforcing rib 11B, so that the first reinforcing rib 11B and the second reinforcing rib 11C are in contact with each other as large as possible in area and are tight, and the supporting force of each of the first reinforcing rib 11B and the second reinforcing rib 11C on the inner wall of the beam body 11 as a whole is improved.

Specifically, each L-shaped reinforcing rib of the second reinforcing rib 11C and each first reinforcing rib 11B are welded and fixed, and the fixing firmness of the second reinforcing rib 11C and the first reinforcing rib 11B is ensured by welding and fixing.

Referring to fig. 5, as another embodiment of the second reinforcing rib 11C, the second reinforcing rib 11C is a square plate having a hollow center, a groove is formed in the center of each of four sides of the plate facing the inner wall of the beam body 11, and the four first reinforcing ribs 11B are respectively inserted into the grooves, so that the second reinforcing rib 11C can be integrally fixed to the first reinforcing rib 11B, and compared with the above-mentioned second reinforcing rib 11C, the split structure of the four L-shaped reinforcing ribs is set as the second reinforcing rib 11C, so that the overall accurate positioning of the second reinforcing rib 11C and the first reinforcing rib 11B is more easily realized.

Preferably, the material of the cross beam body 11 is an aluminum alloy, and the material of the first reinforcing rib 11B and the second reinforcing rib 11C is cast iron or alloy steel, so that the cross beam body 11 itself can have high rigidity and bending resistance, and the first reinforcing rib 11B and the second reinforcing rib 11C can further provide high supporting force for the cross beam body 11, thereby improving the rigidity and bending resistance of the printer cross beam 10.

Specifically, first strengthening rib 11B and second strengthening rib 11C all with 11 inner walls of crossbeam body welded fastening, have guaranteed through welded fastening first strengthening rib 11B and second strengthening rib 11C respectively with the fixed fastness of 11 inner walls of crossbeam body.

From the above, because the printer crossbeam 10 has the advantage that rigidity and bending resistance are all better to make the printer can ensure that the printing dolly moves along with printer crossbeam 10 is stable and accurate, thereby obtains fine printing effect.

Printer beam driving device

Referring to fig. 1, 3, and 6, the printer beam driving apparatus includes a frame 20, a printer beam 10, and a driving mechanism. It is understood that the frame 20 and the printer beam 10 can be implemented as a splice frame as described below and a printer beam 10 as described above, respectively. The printing platform is arranged on the frame 20, and it can be known that the printing platform can adopt a splicing printing platform described below, a printing medium is placed on the printing platform, two parallel side parts of the frame 20 are respectively provided with a guide connection mechanism, and the two side parts extend in parallel along the length direction of the printing platform. The printer beam 10 spans across the print platform and is perpendicular to the two parallel sides, and the printer beam 10 movably supports the print carriage 80 on rails of the printer beam 10 such that the print carriage 80 can move with the printer beam 10 while moving on the rails. The two driving mechanisms are arranged at two ends of the printer beam 10 symmetrically relative to the central axis of the printing platform, and each driving mechanism is in driving connection with the guide mechanism at one side part of the frame 20, so that the printer beam driving device is in driving connection with the two guide mechanisms at two parallel side parts of the frame 20 respectively by adopting the two driving mechanisms, and the two ends of the printer beam 10 are driven bilaterally, thereby ensuring good synchronism and stability of the movement of the printer beam 10 and high precision, and avoiding the shortening of the service life of the printer beam 10 caused by the larger bending moment.

Referring to fig. 6, in particular, the driving mechanism includes a driving motor 40 having a rotating shaft and a gear 50 (only schematically shown in the drawing) fixedly connected to the rotating shaft, and the docking mechanism includes a rack 28 engaged with the gear 50, so that the two ends of the printer beam 10 are driven by the engaged gear 50 and rack 28 with good movement synchronization and stability, which advantageously ensures good synchronization and stability of the movement of the two ends of the printer beam 10, and the gear 50 and rack 28 have high transmission precision, thereby also ensuring high precision of the movement of the two ends of the printer beam.

Further, a driving bracket 12 is fixed at each end of the printer beam 10, the driving bracket 12 includes a fixing base 12A and a supporting leg 12B with a protrusion 12B1, the fixing base 12A and the supporting leg are connected to each other, the driving motor 40 is fixed on the fixing base 12A, the guiding mechanism includes a protruding rail 29 with a guiding groove 29A, and the protrusion 12B1 is clamped in the guiding groove 29A. In this way, the driving motor 40 is well fixed to contribute to the stability of the transmission of the gear 50 and the rack 28, and the gear 50 moves along the rack 28 to move the driving bracket 12 along the rail 29 by the engagement of the protrusion 12B1 and the guide groove 29A, so as to drive the printer beam 10 to move smoothly.

As a further improvement, a guide rail for movably supporting the movement of the printing carriage 80 is provided on the printer cross beam 10, and a shock absorbing member (not shown) such as a sponge is provided at each of the portions of the printer cross beam 10 between the two cut-off ends of the guide rail and the driving bracket 12, so that the mutual influence between the moving printing carriage 80 and the operating driving motor 40 can be reduced by providing a shock absorbing member at each of the two ends of the printer cross beam 10, and the synchronism of the movement of the two ends of the printer cross beam 10 can be ensured.

As a further improvement, the land rails 29 of the respective docking mechanisms are closer to the central axis than the rack 28, so that even though the engagement force generated by the relative movement of the engaged gear 50 and the rack 28 may generate a moment acting on the printer beam 10, the moment is reduced, thereby reducing the adverse effect on the service life of the printer beam 10.

As a further improvement, the printer beam 10 includes a base (not shown) extending toward the printing platform, and the driving bracket 12 is fixedly connected to the base, so that the driving bracket 12 can be well fixed to the printer beam 10 and can apply a uniform driving force to the printer beam 10 through the base.

As a further improvement, a gap is arranged between the side part and the printing platform, and the supporting leg 12B further comprises another protrusion (not shown) which is arranged in the gap and is clamped with another guiding and connecting groove arranged on the convex rail 29, so that the smoothness of driving the printer beam 10 to move is further improved.

In addition, the printer with any one of the printer beam driving devices also comprises a control device, the driving motor 40 which is included by the driving mechanism is a servo motor, the control device simultaneously outputs the same pulse signal to the two servo motors in parallel, the servo motor has the advantages of very accurate speed and position precision due to the fact that the driving motor 40 adopts the servo motor, and the control device of the printer outputs the same pulse signal to the two servo motors in parallel, so that the good synchronism of simultaneous movement of the two ends of the printer beam 10 which are respectively driven by the servo motors is guaranteed.

From top to bottom, because printer crossbeam 10 both ends are just driven respectively in step, can ensure that the synchronism and the stationarity of the motion of the printer crossbeam 10 both ends of printer are good and the precision is high, consequently, can avoid the tradition to adopt single drive arrangement to drive the defect that the printer crossbeam leads to the motion unstability easily, and, because printer crossbeam 10 has better rigidity and bending resistance, then guaranteed that the both ends of printer crossbeam 10 have fine synchronous mobility under receiving a drive arrangement effect respectively, thereby prolonged printer crossbeam 10 life and guaranteed that the printer lasts and obtains good printing effect.

Meshing anti-loosening mechanism of driving device

Referring to fig. 1, 6 and 7, the driving apparatus having the meshing engagement preventing mechanism includes a driving motor 40, a gear 50, a rack 28, a driving bracket 12 and a pressing member 60, wherein, for a more detailed description of the driving device, reference is made to the description of the printer beam driving device above, the driving motor 40 has a rotating shaft, the gear 50 is fixedly connected with the rotating shaft, the rack 28 is engaged with the gear 50, the driving bracket 12 includes a fixed table 12A having a first support plate 12C, the fixed table 12A is fixed with a fixed plate 12D for fixedly connecting with the driving motor 40, the fixed table 12A and the fixed plate 12D are provided with through holes for the rotating shaft to pass through, by fixing the driving motor 40 on the fixed table 12A of the driving bracket 12, the driving bracket 12 moves along the rack 28 under the driving of the gear 50 engaging with the rack 28, so that the driving bracket 12 can drive the printer beam 10 fixed thereto to move. The abutting member 60 is fixedly connected to the first supporting plate 12C, and the abutting force applied by the free end to the fixing plate 12D is perpendicular to the projection of the rack 28 to the plane of the fixing plate 12D, that is, under the condition that the driving motor 40 works for a long time, the fixing plate 12D as the fixing member for fixing the rotating shaft of the driving motor 40 or/and the driving motor 40 is slightly vibrated or loosened relative to the fixing table 12A, so as to cause the gear 50 and the rack 28 to be meshed and loosened, however, under the condition of the slight vibration or the loosening, the abutting force can indirectly apply the acting force to the gear 50 towards the rack 28 by acting on the fixing plate 12D, so that the gear 50 and the rack 28 are always kept in a good meshed state, the gear 50 and the rack 28 are prevented from being meshed and loosened, and the high reliability of the meshing transmission is ensured.

As a specific embodiment of the fixed plate 12D and the fixed platform 12A, a plurality of pairs of threaded connection holes are formed on the fixed platen of the fixed plate 12D and the fixed platform 12A, the plurality of threaded members are respectively fixedly connected with the plurality of pairs of threaded connection holes, the threaded members may be screws, bolts, studs, etc., the fixed connection can be realized conveniently, quickly and at a low cost by adopting the threaded connection of the plurality of threaded members and the plurality of pairs of threaded connection holes, and even if the fixed plate 12D is slightly vibrated until loosened with respect to the fixed platform 12A due to the failure of the threaded connection caused by the long-time operation of the driving motor 40, the looseness of the fixed plate 12D with respect to the fixed platform 12A can be prevented and further the looseness of the meshing of the gear 50 and the rack 28 can be prevented because the pressing member 60 is provided to press the fixed plate 12.

Further, a protrusion 12D1 is provided at an end of the fixing plate 12D close to the first supporting plate 12C, and the free end of the pressing member 60 applies pressing force to the protrusion 12D1, so that the fixing plate 12D can always stably receive pressing force with a larger area through the protrusion 12D 1.

Referring to fig. 7, as an embodiment of the pressing member 60, the pressing member 60 includes a screw head 61, a threaded rod 62 and a nut 63, the first support 12C is provided with a threaded hole, the nut 63 screwed on the threaded rod 62 abuts against a surface of the first support 12C, and the nut 63 can prevent the threaded rod 62 from moving away from the fixing plate 12D, so as to maintain the free end of the threaded rod 62 against the fixing plate 12D, thereby preventing the fixing plate 12D from loosening relative to the fixing table 12A.

As a further improvement, the pressing member 60 is provided in plurality and arranged at equal intervals along the extending direction parallel to the rack 28, so that the pressing force applied by the pressing member 60 to the fixing plate 12D is not only enough and uniform, but also better for the anti-loosening effect of the fixing plate 12D.

As a specific embodiment of the fixed connection between the driving motor 40 and the fixed platform 12A, the shaft sleeve 12E is sleeved on the periphery of the rotating shaft, a plurality of pairs of fixing holes are formed on the shaft sleeve 12E and the fixed plate 12D, a plurality of fixing members are fixedly connected with the plurality of pairs of fixing holes, and the fixing holes and the fixing members can be respectively threaded holes and the threaded members, so that, even if the fixed connection between the shaft sleeve 12E and the fixed plate 12D is loosened, the pressing member 60 can prevent the shaft sleeve 12E from loosening relative to the fixed plate 12D and further prevent the gear 50 from loosening in engagement with the rack 28 because the pressing member 60 applies pressing force to the fixed plate 12D.

As a further improvement, the driving bracket 12 includes a leg 12B with a protrusion 12B1 connected to the fixed platform 12A, the rack 28 is disposed on the frame 20, and the frame 20 is provided with a raised rail 29 having a guiding groove 29A, it should be noted that the frame 20 may be, for example, a splicing frame of a printer described below. The rack 29 is parallel to the rack 28, and the protrusion 12B1 is snapped into the guide slot 29A, so that the driving bracket 12 is drivingly connected to the rack 29 via the leg 12B, and the driving bracket 12 can move along the guide rail relative to the engaged rack 28 under the driving of the gear 50, so that the driving bracket 12 can move smoothly and accurately.

Further, the driving bracket 12 further includes a second support plate 12F parallel to and spaced from the first support plate 12C, the fixing plate 12D is located between the first support plate 12C and the second support plate 12F, that is, the first support plate 12C and the second support plate 12F can largely prevent the unexpected external force from acting on the driving motor 40 arranged therebetween, and the second support plate 12F is located on the convex rail 29 toward the projection on the rack 20, so that the second support plate 12F enhances the connection strength between the driving bracket 12 and the guide rail, and enhances the smoothness of the driving bracket 12 moving along the guide rail.

From above, printer crossbeam 10 is when driven by gear 50 and rack 28 that drive arrangement meshed, and the not hard up of gear 50 and rack 28 meshing is prevented effectively, has guaranteed that printer crossbeam 10 receives the meshing transmission of high reliability in order to carry out steady and accurate removal.

Printer concatenation frame

Referring to fig. 8 to 11, the printer splicing frame 20 includes at least two frame units, each of the frame units includes two first transverse bottom beams 21A and two second transverse bottom beams 21B extending in parallel in a first direction and disposed at an interval, the first transverse bottom beams 21A and the second transverse bottom beams 21B may have the above-mentioned protruding rails 29 fixed thereto, a plurality of longitudinal connecting frames 22 disposed below the two transverse bottom beams and spaced apart from and parallel in the first direction, the longitudinal connecting frames 22 are hollow rectangular bodies, that is, the longitudinal connecting frames 22 are formed by enclosing a straight tube 22B, a first rectangular tube 22C, and a connecting block 22D, which will be described below, into a substantially hollow rectangular frame, and a plurality of first supporting seats 22A fixedly connected to the first transverse bottom beams 21A and the second transverse bottom beams 21B, respectively, are disposed on the longitudinal connecting frames 22, so that two or more pairs of the first transverse bottom beams 21A and the second transverse bottom beams 21B disposed in parallel and spaced apart from each other can be disposed on the basis of the plurality of the first supporting seats 22A plurality of the longitudinal connecting frames 22 The transverse bottom beams 21B are supported and connected, so that the printer frame which is large in required volume and particularly suitable for large printers such as flat-panel printers is integrally spliced, the processing cost is low, and the spliced parts can be conveniently transported before being spliced.

Referring to fig. 10, as a specific embodiment of the longitudinal connecting frame 22, the longitudinal connecting frame 22 has a two-layer structure, wherein the first layer includes a pair of parallel straight pipes 22B, a first support 22A is fixed at a free end of each straight rod, the second layer includes a first rectangular pipe 22C, the straight pipes 22B are fixedly connected with the long-side pipes of the first rectangular pipe 22C through a plurality of connecting blocks 22D, each pipe and each connecting block 22D may be made of alloy steel, cast iron, or the like, and in addition, threaded connections may be achieved between the pipes and between the connecting blocks 22D and the pipes through matching of threaded holes and screws, so the longitudinal connecting frame 22 is manufactured by using pipe fittings and block pieces, which is not only simple to manufacture, but also low in cost.

Referring to fig. 11, as a further modification, at least one longitudinal support plate 23 is disposed between two adjacent longitudinal connecting frames 22, two second supports 23A fixedly connected with the first transverse bottom beam 21A and the second transverse bottom beam 21B are respectively arranged on the longitudinal support plate 23, the longitudinal support plate 23 comprises a second rectangular pipe 23B, a second support 23A is fixed at the free end of the long side pipe of the second rectangular pipe 23B, by providing a plurality of longitudinal support plates 23, and a plurality of second brackets 23A thereon, therefore, the support and attachment of the first and second transverse bottom beams 21A and 21B is further enhanced, moreover, the longitudinal support plate 23 is simple to manufacture and low in cost, the longitudinal connecting frame 22 is horizontally arranged, the longitudinal support plate 23 is vertically arranged, in this way, each of the longitudinal connecting frames 22 and the longitudinal supporting plates 23 can provide sufficient supporting force and connecting force to each of the first and second lateral bottom beams 21A and 21B.

Referring to fig. 8, it is preferable that the lengths of the first and second lateral bottom beams 21A and 21B of a single frame unit are not equal, and the total length of the first and second lateral bottom beams 21A and 21B of two adjacent frame units are equal, so that an unexpected external force applied to any one of the connection point of the two first lateral bottom beams 21A and the connection point of the two second lateral bottom beams 21B can be prevented from being easily transmitted to the other, thereby enhancing the overall impact resistance and stability of the printer splicing frame 20.

Referring to fig. 9, specifically, grooves (not shown) are formed at the first connection point of the two first transverse bottom beams 21A and the second connection point of the two second transverse bottom beams 21B of the two adjacent frame units, and a clamping block 24 is fixed in each groove, so that the clamping block 24 can be fixed with each groove through a threaded connection or a welding manner, thereby ensuring the connection stability of each connection point.

Further, the first joint and the second joint are fixedly connected to the first support 22A disposed at two opposite corners of a longitudinal connecting frame 22, respectively, so that the longitudinal connecting frame 22 can enhance the connection stability of each joint and provide a bending moment capable of preventing the two bottom beams from being twisted with respect to each other, while achieving the above-mentioned effect of preventing the unexpected external force from being easily transmitted.

Referring to fig. 9, as a further modification, a pair of reinforcing blocks 25 fixedly connected to the two slits of the first and second junctions, respectively, are provided on the longitudinal connecting frame 22. In this way, the reinforcing blocks 25 further enhance the connection strength of the respective joints.

As a further modification, at least one pair of support columns 26 are provided in the regions of the first and second transverse bottom beams 21A and 21B between the adjacent longitudinal connecting frames 22 and longitudinal support plates 23, so that the support force for the first and second transverse bottom beams 21A and 21B can be increased.

Referring to fig. 8 and 11, as a further modification, a plurality of support connection blocks 27 are provided at the same level on the side of each of the longitudinal connection frame 22 and the longitudinal support plate 23 facing the first and second lateral bottom beams 21A and 21B, so that the plurality of support connection blocks 27 at the same level can provide sufficient and uniform force to the supported and fixedly connected bedplate 30, and in addition, it can be understood that the longitudinal connection frame 22, the longitudinal support plate 23 and the support column 26 are all equal in height in the vertical direction.

Concatenation print platform

It should be noted that, referring to fig. 2, the following described splicing printing platform is supported and fixed on the above described splicing frame 20 of the printer.

Referring to fig. 12, the splicing printing platform includes a plurality of rectangular platens 30, a plurality of connecting buckles 32 and a plurality of connecting members (not shown), wherein a plurality of first connecting portions are disposed at edges of each rectangular platen 30, and in this embodiment, the first connecting portions are openings 31, and the openings 31 are preferably blind holes to prevent the connecting members from being exposed from the platens 30 to affect the placement of the printing medium on the platens 30. The first connection portion may be a welded portion. The plurality of platens 30 are arranged in a neighboring alignment according to a predetermined printing platform shape, that is, each platen 30 selects a neighboring object and the number thereof according to a predetermined printing platform shape such as a long rectangle, a square, etc. that is to be obtained, but the rectangular plate edges of each adjacent platen 30 are aligned correspondingly, and a plurality of first connecting portions respectively provided on two adjacent platens 30 are disposed oppositely. At least two second connection portions are provided in the connector link 32, and in the present embodiment, the second connection portions are through holes (not shown), and the second connection portions may be welded portions. One of the at least two second connecting portions of each connecting link 32 corresponds to one of the first connecting portions of two adjacent decks 30 to form two pairs of connecting portions. Each connecting piece is correspondingly and fixedly connected with the connecting part pair. It is to be understood that, when the first connection portion and the second connection portion are respectively provided as the opening 31 and the through hole which are both the connection holes, inner hole walls of both the connection portions are provided with internal threads, the connection member is a screw, a bolt, a screw or other threaded connection member, and when the first connection portion and the second connection portion are provided as the welding portion such as the welding bead, the connection member may be a solder. Thus, by selecting a certain number of platens 30 for stitching, a printing platform having a desired platform area, particularly a large platform area, may be obtained, which has the advantages of simplicity of manufacture, low cost, and high versatility.

Further, a support assembly is arranged on the back surface of the bedplate 30, the support assembly comprises a support main body 33 and a plurality of support legs 33A fixed with the support main body 33, the support main body 33 is fixedly connected with the back surface of the bedplate, the support legs 33A extend towards the direction vertical to and far away from the back surface, therefore, the support main body 33 increases the strength of the bedplate 30, the support legs 33A can support each bedplate 30, the free ends of the support legs 33A are provided with connecting plates 34, the connecting plates 34 are symmetrically provided with connecting holes 34A relative to the support legs 33A, therefore, the connecting holes 34A are fixedly connected with the connecting holes of the support connecting blocks 27 through threaded connectors, and the stability of the support and the fixed connection of each longitudinal connecting frame 22 and each longitudinal supporting plate 23 to each bedplate 30 can be ensured.

Specifically, the support main body 33 is a rectangular frame, and each rectangular frame edge of the rectangular frame is parallel to and adjacently arranged to each rectangular plate edge, so that the support main body 33 increases the strength of the platen 30 in a larger area range of the platen 30.

Further, since the plurality of reinforcing rods 35 provided perpendicular to each other are provided inside the rectangular frame body, the plurality of reinforcing rods 35 further increase the strength of the platen 30.

As a further improvement, connecting pieces 36 are provided between the reinforcing bar 35 and the rectangular frame and the back of the table plate, one end of each connecting piece 36 is fixedly connected with the reinforcing bar 35 or the rectangular frame by welding, the other end of each connecting piece 36 is provided with a piece through hole (not shown), the back of the table plate is provided with a table hole (not shown) corresponding to the piece through hole, and the piece through hole and the table hole are fixedly connected by the connecting piece. It can be appreciated that the sheet through hole and the table hole are internally threaded, and the connecting member can be the threaded connecting member, so that the reinforcing rod 35 and the rectangular frame edge can be conveniently, quickly and stably fixed to the back of the table plate.

Preferably, the platen 30 is provided with at least one air suction hole 37, and each air suction hole is communicated with an air suction device, so that the printing medium on the platen 30 can be adsorbed to prevent displacement during the printing process.

Preferably, the predetermined shape of the printing platform is a long rectangle, so that the splicing printing platform can adapt to the situation that most printing media are long rectangles.

Printer with a movable platenInk supply device

Referring to fig. 1 and 13, the printer ink supply apparatus includes a frame 20, a printer cross member 10, and an ink cartridge accommodating frame 70. For the frame 20, the printer beam 10 and the printer beam driving device, please refer to the above detailed description, which is not repeated herein. The plurality of ink cartridges 90 in the ink cartridge accommodating rack 70 described below supplies ink to the printing carriage 80 through a plurality of ink tubes. As for the ink cartridge accommodating frame 70, it is provided at one end of the printer cross member 10 and arranges a plurality of ink cartridges 90 for supplying ink to the printing carriage 80. Because the ink box containing frame 70 is arranged on the printer beam 10, the ink box 90 on the ink box containing frame 70 is prevented from being installed on the frame 20, and the ink box containing frame 70 can move together with the printing trolley 80 arranged thereon, so that the length of the ink tube between each ink box 90 and the printing trolley 80 can be reduced, and the printer ink supply device has the advantages of short ink tube, less ink residue and timely ink supply.

Further, the ink cartridge accommodating frame 70 is provided with a plurality of accommodating grooves 71 arranged in parallel, and therefore, attachment and detachment of each ink cartridge 90 to and from the ink cartridge accommodating frame 70 is facilitated.

Further, the ink cartridge accommodating rack 70 is further provided with a display part 72 for displaying the usage of each ink cartridge 90, it is known that the display part 72 is electrically connected to the control device of the printer, and the display part 72 may be a liquid crystal display, which can display the usage of the ink color, the remaining capacity, and the like in each ink cartridge 90, thereby facilitating the use of the user.

As a further improvement, a plurality of ink tubes, which are respectively communicated with the printing nozzles on the printing trolley 80, of each ink cartridge 90 are arranged inside a drag chain which moves together with the printing trolley 80 on the printer beam 10, so that each ink tube is protected by the drag chain and is beneficial to further shortening the length of each ink tube on the premise of ensuring ink supply, reducing ink residue and improving ink supply timeliness.

Specifically, the ink colors stored in the plurality of ink cartridges 90 include: ink cartridge (Cyan, C), Magenta ink (M), Yellow ink (Y), Black ink (K), and White ink (White, W), and therefore, the ink supply apparatus of the printer is particularly suitable for a wide-format printer using "full-color printing".

Further, with respect to the ink cartridge accommodating frame 70 and the driving mechanism provided at the same end of the printer cross member 10, the ink cartridge accommodating frame 70 is farther from the central axis than the driving mechanism, so that the influence of the movement of the printer cross member 10 and the vibration of the driving mechanism on the ink in each ink cartridge 90 in the ink cartridge accommodating frame 70 is reduced, and good ink supply of each ink cartridge 90 is ensured.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A drive device having a meshing engagement preventing mechanism, comprising:

a driving motor having a rotation shaft;

the gear is fixedly connected with the rotating shaft;

a rack engaged with the gear;

the driving support comprises a fixed table with a first support plate, a fixed plate fixedly connected with a driving motor is fixed on the fixed table, and through holes for the rotating shaft to pass through are formed in the fixed table and the fixed plate;

and the pressing piece is fixedly connected with the first supporting plate, and the free end of the pressing piece exerts pressing force on the fixing plate to be vertical to the projection of the rack to the plane where the fixing plate is located.

2. The drive device according to claim 1, characterized in that:

and a plurality of pairs of threaded connecting holes are formed in the fixed plate and the bedplate of the fixed table, and the plurality of threaded pieces are fixedly connected with the plurality of pairs of threaded connecting holes respectively.

3. The drive device according to claim 1, characterized in that:

one end of the fixing plate, which is close to the first support plate, is provided with a boss, and the free end of the pressing piece exerts pressing force on the boss.

4. The drive device according to claim 1, characterized in that:

the pressing piece comprises a screw head, a threaded rod and a nut, the first supporting plate is provided with a threaded hole, and the nut screwed on the threaded rod is abutted against the first supporting plate to keep the free end of the threaded rod pressed against the fixing plate.

5. The drive device according to claim 1, characterized in that:

the pressing parts are provided in plurality and are arranged at equal intervals along the extending direction parallel to the rack.

6. The drive device according to claim 1, characterized in that:

the periphery of the rotating shaft is sleeved with a shaft sleeve, the shaft sleeve and the fixing plate are provided with a plurality of pairs of fixing holes, and a plurality of fixing pieces are fixedly connected with the plurality of pairs of fixing holes.

7. The drive device according to claim 1, characterized in that:

the driving support comprises a supporting leg with a protrusion, the supporting leg is connected with the fixed table, the rack is arranged on the rack, a convex rail with a guide connecting groove is arranged on the rack, the convex rail is parallel to the rack, and the protrusion is clamped in the guide connecting groove.

8. The drive device according to claim 7, characterized in that:

the driving support further comprises a second support plate parallel to the first support plate and arranged at an interval, the fixed plate is located between the first support plate and the second support plate, and the projection of the second support plate on the convex rail towards the rack is located.

9. A printer, comprising:

a printer beam, a printing trolley and a driving device with a meshing anti-loosening mechanism as claimed in any one of claims 1 to 8, wherein the printing trolley is movably supported on a guide rail of the printer beam, and the driving motor drives the printer beam to move.

10. The printer according to claim 9, wherein:

the printer includes the frame, be equipped with print platform in the frame two parallel lateral parts of frame with printer crossbeam both ends respectively are equipped with one drive arrangement, wherein, the drive support set up in on the printer crossbeam be equipped with one on the two parallel lateral parts respectively the rack with have the tongue that leads the groove, the drive support is equipped with takes bellied stabilizer blade, corresponds protruding with lead the mutual joint of groove.

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