CN113580770B

CN113580770B - Ink vehicle mechanism arranged across two sides of cross beam and printing equipment

Info

Publication number: CN113580770B
Application number: CN202110890327.0A
Authority: CN
Inventors: 李支斌
Original assignee: Hangzhou Spotcolor Digital Technology Co ltd
Current assignee: Hangzhou Spotcolor Digital Technology Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2023-02-03
Anticipated expiration: 2041-08-04
Also published as: CN113580770A; CN115742571A

Abstract

The invention relates to the technical field of printers, and particularly discloses an ink vehicle mechanism and printing equipment which are arranged across two sides of a cross beam, wherein the ink vehicle mechanism at least comprises the cross beam and an ink vehicle, the ink vehicle is arranged across the cross beam, a guide supporting mechanism extending along the length direction of the cross beam is arranged between the ink vehicle and the cross beam, and a first spray head module arranged on one side of the cross beam and a second spray head module arranged on the other side of the cross beam are arranged at the bottom of the ink vehicle. This overall arrangement mode is not increasing and even reduces shower nozzle module and china ink car span D, guarantee and prints under the condition of physical precision, the innovative china ink car structure that provides and span the crossbeam, has increased the longitudinal width Y and the shower nozzle total quantity (capacity) of the shower nozzle module more than one time to the printing speed more than one time has been promoted. And the transmission performance and the stress structure of the ink car are better improved, the motion stability of the ink car is improved, the elastic deformation error of the ink car is reduced, and the printing quality is improved.

Description

Ink vehicle mechanism arranged across two sides of cross beam and printing equipment

Technical Field

The invention relates to the technical field of printers, in particular to an ink vehicle mechanism and printing equipment which are arranged across two sides of a cross beam.

Background

Printers are becoming widely used as the main devices for digital printing. Inkjet printing is the mainstream of printing equipment, and can realize inkjet printing on various media, such as various papers, polymer film media, films, various kinds of cloth, and the like, and plays an increasingly important role. However, the digital printing speed, which is characterized by the reciprocating scanning type of the head carriage, is generally low (generally 5 to 500 m/h) compared with the high-speed production efficiency (generally 50 to 350 m/min) of the industrial roll printing equipment.

A typical inkjet printing apparatus structure, as shown in fig. 1, includes an apparatus main body 100 and an ink carriage 10 on which a head module 20 is provided. The apparatus body 100 is provided with a cross member 30 serving as a support, and one side of the cross member 30 is provided with a guide rail 40. The device main body 100 is further provided with a medium platform 50 for supporting and moving a medium, and a driving shaft 60 is arranged below the cross beam and used for controlling the printing medium to perform stepping unidirectional movement in cooperation with the movement of the carriage 10 to complete picture printing. During printing, the carriage 10 reciprocates along the rail 40 above the media deck 50.

Because the line printing width of a single printing nozzle is limited, in order to improve the digital printing speed, a developer generally increases a plurality of groups of nozzle arrays to form a nozzle module so as to improve the printing speed, and as shown in fig. 2, 1-4 # nozzles are spliced end to realize single scanning ink-jet printing of 4 times of the nozzle width.

At present, most of the printing devices on the market adopt a structural layout similar to that shown in fig. 1, namely, a guide rail is fixed on the front side surface of a cross beam, and an ink carriage is arranged on the front side (namely, the side close to a paper outlet end and an operator) of the cross beam. Such layout structure is simple, and the structures such as printing shower nozzle that the user of being convenient for simultaneously operated, installed and adjusted the china ink car the inside have higher convenience and rationality relatively to the equipment that china ink car horizontal plane span size (be 1 PASS's vertical printing width) is not big, printing shower nozzle quantity is not too much.

However, due to the influence of the span of the cross beam and the precision of the guide rail, as shown in fig. 3, the horizontal plane projection distance (i.e. the ink vehicle span) from the guide rail surface to the edge of the outermost printing nozzle is defined as D, and when the ink vehicle horizontal plane span D increases, the drop point precision of the end printing nozzle is obviously reduced, and the main factors are:

(1) As shown in fig. 4, when the longitudinal inclination error of the cross beam and the guide rail is defined as α, the vertical plane height error Δ H = D SIN α of the print head from the print surface is proportionally enlarged when the carriage span D is increased.

(2) As shown in fig. 5, when the angular error of the horizontal plane yaw of the cross beam and the guide rail is defined as β, the head position error Δ X = D SIN β on the left and right of the horizontal plane is amplified proportionally as the ink vehicle span D increases.

(3) The ink car is required to move at a constant speed in the ink jet section during printing, but in order to realize a left-right reciprocating scanning printing mode, the ink car is required to rapidly do acceleration and deceleration movement from zero to the constant speed at two ends, so that a large horizontal plane torque is necessarily generated due to the change of the speed. When the ink vehicle span D increases, the inertia barycenter moves outwards synchronously, the motion inertia increases rapidly, the torque becomes large, the horizontal side swing impact load and the elastic deformation of the ink vehicle and the cross beam at two ends increase, the form and position error and the vibration aggravate, the control precision of the ink jet drop point decreases, and the quality of a printed image decreases.

Traditional printing apparatus, in order to promote printing speed, generally with a plurality of printing shower nozzle arrays formation shower nozzle module, promote printing speed through the mode that effectively increases the total width of shower nozzle array. "shower nozzle module" in this application refers to the array module of one or more printing shower nozzle, or has the whole module that several array modules combined formed, prints the shower nozzle and splices according to vertical arrangement to increase the printing width of ink car single scanning.

The common arrangement mode of the nozzle modules is an end-to-end splicing mode as shown in fig. 6A, and a partial overlapping splicing mode as shown in fig. 6B; in order to increase the single-time printing density, some printing apparatuses increase one or more times of the horizontal splicing array units, as shown in fig. 7, a dual-head module is adopted, and as shown in fig. 8, a triple-head module is adopted. However, the nozzle modules in the above markets are limited by the longitudinal ink vehicle span D, resulting in the bottleneck in the increase of the printing speed of the printing apparatus.

Disclosure of Invention

The invention aims to solve the technical problem of how to effectively increase the total width of a spray head array and improve the printing speed of printing equipment under the condition that the error is not continuously increased or is controlled and improved.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: the ink vehicle mechanism at least comprises a fixedly arranged cross beam and an ink vehicle, wherein the ink vehicle stretches across the cross beam, a guide supporting mechanism extending along the length direction of the cross beam is arranged between the ink vehicle and the cross beam, and a first spray head module positioned on one side of the cross beam and a second spray head module positioned on the other side of the cross beam are arranged at the bottom of the ink vehicle.

In a preferred embodiment, at least two sets of the guiding and supporting mechanisms are provided, and the two sets of the guiding and supporting mechanisms are symmetrically arranged relative to the cross beam.

In a preferred embodiment, at least one set of guide support mechanisms is arranged between the upper part or the lower part of the cross beam and the ink car.

In a preferred embodiment, the guide support mechanism comprises a guide rail and a guide groove which are matched with each other.

In a preferred embodiment, the first showerhead module and the second showerhead module are non-continuous, and the first showerhead module and the second showerhead module are symmetrically or asymmetrically arranged with respect to the cross beam.

In a preferred embodiment, the first showerhead module and the second showerhead module are continuous with each other, the first showerhead module and the second showerhead module are symmetrically or asymmetrically arranged with respect to the cross beam, and the overall showerhead module formed by the first showerhead module and the second showerhead module passes through a position right below the cross beam.

A printing device comprising at least:

an apparatus main body;

the carriage mechanism, the cross member is fixed to the apparatus main body; and

the medium platform is fixed on the equipment main body and located below the ink car, the medium platform is provided with an integrally continuous medium bearing surface, the included angle between the medium bearing surface and the vertical direction is theta, and the value of theta is 0-90 degrees.

A printing device comprising at least:

an apparatus main body;

the ink car mechanism, the said crossbeam is fixed to said apparatus body; and

the medium platform comprises a first medium platform corresponding to the first spray head module and a second medium platform corresponding to the second spray head module, a transition roller is arranged between the first medium platform and the second medium platform, an included angle between a medium bearing surface of the first medium platform and a longitudinal section central plane of the cross beam is W1, an included angle between a medium bearing surface of the second medium platform and the longitudinal section central plane of the cross beam is W2, and the values of W1 and W2 are 0-180 degrees.

A printing device comprising at least:

an apparatus main body;

the cross beam is fixed on the equipment main body; and

the medium platform is fixed on the equipment main body and located below the ink car, the medium platform is provided with an integrally continuous medium bearing surface, an included angle between the medium bearing surface and the vertical direction is A, and the value of A is 0-180 degrees.

In a preferred embodiment, the carriage mechanism is provided with a drive system, the power input location of which is located directly above or below the cross member.

The china ink car mechanism and the printing apparatus of crossing the crossbeam both sides and arranging of this embodiment, the breakthrough has changed the overall arrangement of current china ink car, shower nozzle module, and wherein, china ink car crosses the crossbeam setting, and the shower nozzle module is including the first shower nozzle module that is located crossbeam one side and the second shower nozzle module that is located the crossbeam opposite side, and this kind of overall arrangement mode compares with prior art, has following beneficial effect:

(1) When the ink vehicle does rapid acceleration and deceleration movement from zero to a uniform speed at two ends of the cross beam, the ink vehicle crosses the cross beam, the inertia mass center of the ink vehicle returns to the center of the cross beam or is close to the center of the cross beam, so that the horizontal plane impact torque generated when the ink vehicle does acceleration and deceleration movement at two ends of the cross beam is reduced or even eliminated, the elastic deformation and the vibration error generated due to the impact torque are greatly reduced or eliminated, the precision of an ink jet drop point is higher, and the quality of a printed image is higher.

(2) Corresponding to the shower nozzle module of same vertical total width, china ink car span D can reduce to prior art half, and its printing shower nozzle that corresponds is then equal-proportion reduced apart from the perpendicular height error of printing the face, the shower nozzle position error about the horizontal plane for the precision of inkjet drop is higher, and the quality of printing the image is higher.

(3) Compared with the prior art, under the condition that the ink car span D is not increased, the longitudinal total width of the spray head module can be doubled, and the corresponding printing speed is doubled.

Drawings

FIG. 1 is a schematic diagram of a prior art inkjet printing apparatus;

FIG. 2 is a schematic structural view of an ink vehicle with four printing collision heads spliced end to end in the prior art;

FIG. 3 is a schematic structural view showing a carriage span D in a prior art inkjet printing apparatus;

FIG. 4 is a schematic diagram of a prior art inkjet printing apparatus showing a vertical plane height error Δ H of a print head from a print surface;

FIG. 5 is a schematic diagram of a prior art inkjet printing apparatus showing a head position error Δ X around the horizontal plane;

FIG. 6A is a schematic view of a head-to-tail joint type showerhead module according to the prior art;

FIG. 6B is a schematic diagram of a partially overlapped and spliced showerhead module according to the prior art;

FIG. 7 is a schematic structural view of a dual showerhead module arranged in parallel according to the prior art;

FIG. 8 is a schematic structural view of three showerhead modules arranged in parallel in the prior art;

FIG. 9A is a schematic view of a printing apparatus according to the first embodiment in a plan view;

FIG. 9B is a schematic diagram of a printing apparatus according to an embodiment in a side view;

FIG. 10 is a schematic structural view of a printing apparatus according to a second embodiment in a side view;

FIG. 11 is a schematic structural view of a printing apparatus according to a third embodiment in a side view;

FIG. 12 is a schematic structural view of a printing apparatus according to a fourth embodiment in a side view;

FIG. 13 is a schematic structural view of a printing apparatus according to a fifth embodiment in a side view;

FIG. 14 is a schematic structural view of a printing apparatus according to a sixth embodiment in a side view;

FIG. 15 is a schematic structural view of a printing apparatus according to a seventh embodiment in a side view;

FIG. 16A is a schematic structural diagram of a printing apparatus according to an eighth embodiment in a top view;

FIG. 16B is a schematic structural diagram of a printing apparatus according to an eighth embodiment in a side view;

FIG. 17 is a schematic structural view of the printing apparatus in a side view according to the ninth embodiment.

FIG. 18A is a schematic configuration diagram of a printing apparatus shown in a tenth embodiment in a top view;

fig. 18B is a schematic structural view of a printing apparatus according to a tenth embodiment in a side view.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, integrally connected, or detachably connected; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art will understand the specific meaning of the above terms in the present invention in specific situations.

Example one

As shown in fig. 9A and 9B, a printing apparatus of the present embodiment includes an apparatus main body 100, a cross member 30 disposed above the apparatus main body 100, and an ink carriage 10, wherein the ink carriage 10 spans the cross member 30, and preferably, the ink carriage 10 has a structure symmetrical to the cross member 30.

Here, the symmetry plane corresponding to symmetry means a symmetry plane with respect to the longitudinal center plane 31 of the cross beam 30, and the symmetry planes corresponding to symmetry described later in this application are all the longitudinal center planes 31.

In this embodiment, the bottom of the carriage 10 is provided with a first head module 21 located on one side of the cross member and a second head module 22 located on the other side of the cross member. Preferably, the first and

second showerhead modules

21 and 22 are symmetrical with respect to the cross member 30.

In this embodiment, the medium platform 50 is fixed to the apparatus main body and located below the carriage 10, and has an overall continuous medium bearing surface that is horizontal and perpendicular to the longitudinal central section 31 of the cross member 30.

Compared with the prior art, the printing equipment of the embodiment has the advantages that the longitudinal width Y =2*D of the spray head module is twice increased and the printing speed is twice increased under the condition that the ink vehicle span D is unchanged.

In addition, in the embodiment, the structural layout of the ink vehicle enables the mass center of the ink vehicle to return to the longitudinal section central plane of the cross beam, so that the torque deflection of the ink vehicle in the acceleration and deceleration state is eliminated, the horizontal plane impact torque generated when the ink vehicle performs acceleration and deceleration movement at two ends of the cross beam is eliminated, the elastic deformation and vibration error generated due to the impact torque are eliminated, the accuracy of ink jet drop points is higher, and the quality of printed images is higher.

In this embodiment, three sets of guiding and supporting mechanisms extending along the length direction of the cross beam are disposed between the carriage 10 and the cross beam 30, wherein two sets of guiding and supporting mechanisms are symmetrically disposed on two sides of the cross beam, and one set of guiding and supporting mechanisms is disposed right above the cross beam.

The guide support mechanism comprises a guide rail 40 fixedly arranged on the cross beam, and the ink car 10 is arranged in a guide groove matched with the guide rail 40.

In the embodiment, the symmetrical guide supporting mechanisms are arranged on the two sides of the cross beam, so that the supporting capacity of the ink car is enhanced, and the reciprocating motion precision of the ink car is improved. The guide supporting mechanism is arranged above the cross beam, so that the supporting capacity of the ink car is further enhanced, and the reciprocating motion precision of the ink car is improved.

In the present embodiment, based on the layout change of the carriage 10 and the head modules, among others, the layout of the drive system for driving the printing medium 53 also needs to be changed adaptively. As shown in fig. 9B, a driving roller 61 and a pressing roller 62 are disposed in the entering direction of the printing medium 53, and a tensioning roller 63 and a pulling mechanism are disposed in the outputting direction of the printing medium 53, where the pulling mechanism is used to pull out the printing medium 53.

Preferably, because the printing step width is large, the embodiment uses a rubber roller with a large diameter as the driving roller 61 to drive, instead of a traditional steel prick shaft or a sanding shaft with a small diameter. The diameter of the small-diameter steel prick shaft or the sanding shaft is generally 20-30 mm, and the diameter of the rubber roller is generally 80-200 mm. The printing medium (such as paper) is generally drawn by the tension roller 63 to generate friction force on the surface of the rubber roller, and the motor drives the rubber roller to drive the medium to move. The printing medium may be directly pushed and moved by pressing the driving roller 61 with a pressing roller 62.

Example two

The printing apparatus of the present embodiment is configured with a power input position 11 of a driving system of a carriage mechanism, as shown in fig. 10, on the basis of the printing apparatus shown in the first embodiment, wherein the power input position 11 is located directly below the cross member. Of course, as an equivalent embodiment, the power input location 11 could also be located directly above the cross beam.

In the field, a driving system of this type of printing apparatus generally adopts a belt transmission, and the transmission position of the belt transmission is adjusted to the power input position 11, so that the power torque can be further eliminated, and the printing accuracy can be improved.

Preferably, when the ink vehicle mechanism adopts the structural layout of the embodiment, a driving system of the ink vehicle mechanism can adopt a linear motor, and the linear motor is beneficial to large-load driving and simultaneously eliminates errors caused by tension deformation and suspended length change caused by a belt. If the stator of the linear motor is disposed at the power input position 11, an effect of further eliminating the power torque can be achieved to improve the printing accuracy.

EXAMPLE III

The printing apparatus of the present embodiment, as shown in fig. 11, is mainly different from the first and second embodiments in that the medium carrying surface of the medium platform 50 is disposed obliquely, and the included angle θ between the medium carrying surface and the vertical direction is 8 °. Correspondingly, the media carrying surface remains in a perpendicular relationship to the longitudinal central section 31 of the beam 30.

It should be noted that θ can be 0 ° to 90 °, and when θ =0 °, the medium carrying surface is in a vertical state; when θ =90 °, the horizontal state is shown in example one and example two.

In this embodiment, the layout space of the printing apparatus is reconstructed by obliquely arranging the medium bearing surface of the medium platform 50, and the conventional printing surface is changed from horizontal arrangement to vertical arrangement, so that the operation space of the printing apparatus is improved, more column spaces are reserved for the layout of receiving and feeding paper later, the space utilization rate is higher, and the space optimization has incomparable technical advantages.

As an adaptive change of this embodiment, two sets of guiding and supporting mechanisms are symmetrically arranged below the cross beam (here, below refers to a direction facing the media platform), so that when the media platform 50 is arranged obliquely, the supporting performance for the ink carriage is better, and the movement precision of the ink carriage is higher.

Example four

As shown in fig. 12, the printing apparatus of the present embodiment is mainly different from the first and second embodiments in that the medium stage includes a first medium stage 51 corresponding to the first head module 21 and a second medium stage 52 corresponding to the second head module 22. Wherein a transition roller 64 is disposed between the first media platform 51 and the second media platform 52, typically the transition roller 64 is located directly below the cross beam 30.

In this embodiment, an included angle between the medium bearing surface of the first medium platform 51 and the longitudinal central plane 31 of the cross beam is W1, and an included angle between the medium bearing surface of the second medium platform 52 and the longitudinal central plane of the cross beam is W2, where W1 and W2 are between 0 ° and 180 °, and W1 and W2 may be equal or unequal.

Preferably, in this embodiment, the first showerhead module 21 and the second showerhead module 22 are symmetrically arranged with respect to the cross beam, and correspondingly, W1= W2=85 °. When W1= W2=90 °, the media bearing surfaces of the first media deck 51 and the second media deck 52 are both horizontal.

EXAMPLE five

The printing apparatus of the present embodiment, as shown in fig. 13, belongs to the same technical concept as that of the fourth embodiment, wherein W1= W2=30 °.

Along with the change of the angles W1 and W2, when the inclinations of the medium bearing surface of the first medium platform 51 and the medium bearing surface of the second medium platform 52 are larger, the length of the printing apparatus in the direction of travel of the printing medium is smaller, the occupied space is smaller, the operating space of the printing apparatus is improved, more sorting spaces are reserved for the layout of receiving and feeding paper later, and the space utilization rate is higher.

In the present embodiment, a tension roller 63 is further provided before the driving roller 61 in the entering direction of the printing medium based on the spatial rearrangement to meet the spatial arrangement requirement.

EXAMPLE six

As shown in fig. 14, the printing apparatus of this embodiment is different from the fourth and fifth embodiments in that the first head module 21 and the second head module 22 are asymmetrically arranged with respect to the beam, and accordingly, W1 ≠ W2.

Preferably, in this embodiment, W1=0 °, that is, the medium bearing surface of the first medium platform 51 is in a vertical state; w2=90 °, i.e. the media-carrying face of the second media platform 52 is horizontal.

In this embodiment, space utilization is more flexible based on a layout scheme in which W1 ≠ W2.

EXAMPLE seven

The printing apparatus of the present embodiment, as shown in fig. 15, differs from the sixth embodiment in that W1 and W2 have different values.

In this embodiment, W1=180 °, that is, the medium bearing surface of the first medium platform 51 is vertical, and the first medium platform 51 and the first head module 21 are located above the cross beam 30; w2=150 °, i.e. the media carrying face of the second media platform 52 is in an obliquely upward state.

The printing device of the embodiment further changes the space layout form and the operation position of the traditional printing device, and provides a feasible layout scheme for better utilizing the space.

Example eight

As shown in fig. 16A and 16B, the printing apparatus of this embodiment is different from the first embodiment in that the first head module 21 and the second head module 22 are continuous, the first head module 21 and the second head module 22 are symmetrically arranged with respect to the cross beam, and the whole head module formed by the first head module 21 and the second head module 22 passes through a position right below the cross beam.

In this embodiment, the media platform 50 is fixed on the main body 100 and located below the carriage 10, and the media platform 50 has an overall continuous media bearing surface, which is horizontal.

In this embodiment, since the integral head module formed by the first head module 21 and the second head module 22 passes through the right lower part of the beam, the height H from the bottom of the beam to the bottom of the carriage is higher than that in the first embodiment, so as to accommodate a suitable head operating space.

Compared with the first embodiment, because the first nozzle module 21 and the second nozzle module 22 are continuous, the accumulated errors of a plurality of printing nozzles are smaller, the structural space is more compact, and the printing algorithm corresponding to the printing equipment is simpler.

Example nine

The printing apparatus of the present embodiment, as shown in fig. 17, is different from the eighth embodiment in that the medium carrying surface of the medium platform 50 is disposed obliquely, and the included angle a between the inclination of the medium carrying surface and the vertical direction is 60 °.

It should be noted that the value of a may be 0 ° to 90 °, and when a =0 °, the medium carrying surface is in a vertical state; when a =90 °, this is the horizontal state shown in the example eight.

In this embodiment, the media bearing surface of the media platform 50 is obliquely arranged, so that the technical advantages of the eighth embodiment are inherited, the layout space of the printing apparatus is reconstructed, the horizontal layout of the conventional printing surface is changed into the oblique layout, the operation space of the printing apparatus is improved, more column-dividing spaces are reserved for the layout of the received and fed paper, and the space utilization rate is higher.

Example ten

The printing apparatus of this embodiment, as shown in fig. 18A and 18B, differs from the eighth embodiment in that the first head module 21 and the second head module 22 are asymmetrically arranged with respect to the cross beam, and thus, after the layout, while the advantages of the eighth embodiment are inherited, more choices can be provided based on the spatial layout.

In this embodiment, the longitudinal width Y = Da + Db of the nozzle module.

Of course, as a possible implementation, the media bearing surface of the media platform 50 in this embodiment may also be arranged obliquely as described in example nine.

It should be noted that the power input position 11 shown in the second embodiment is also applicable to the third to tenth embodiments.

In addition, in the printing apparatuses according to the first to tenth embodiments, the first head module 21 and the second head module 22 may be in the form of the head modules shown in fig. 6A, 6B, and 7-8. This application is not increasing and even reduces shower nozzle module and china ink car span D, under the guarantee printed the condition of physical precision, the innovative china ink car structure that provides and span the crossbeam, has arranged first shower nozzle module and second shower nozzle module on this china ink car, has increased the longitudinal width Y and the shower nozzle total amount (capacity) of the shower nozzle module more than one time to the printing speed more than one time has been promoted. And the transmission performance and the stress structure of the ink car are better improved, the motion stability of the ink car is improved, the elastic deformation error of the ink car is reduced, and the printing quality is improved.

In conclusion, the above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A printing device comprising at least:

an apparatus main body;

the ink car mechanism at least comprises a cross beam and an ink car which are fixedly arranged on the equipment main body, the ink car stretches across the cross beam, a guide supporting mechanism extending along the length direction of the cross beam is arranged between the ink car and the cross beam, a first spray head module positioned on one side of the cross beam and a second spray head module positioned on the other side of the cross beam are arranged at the bottom of the ink car, the first spray head module and the second spray head module are discontinuous, and the first spray head module and the second spray head module are symmetrically or asymmetrically arranged relative to the cross beam; the medium platform is fixed on the equipment main body and positioned below the ink car, and the medium platform is provided with an integral continuous medium bearing surface;

the medium bearing surface of the medium platform is obliquely arranged, the medium bearing surface is perpendicular to a longitudinal section central plane of the cross beam, the included angle between the medium bearing surface and the vertical direction is theta, the theta is greater than or equal to 0 degrees and less than 90 degrees, and when the theta =0 degrees, the medium bearing surface is in a vertical state; the guide support mechanism comprises a guide rail and a guide groove which are mutually matched; the carriage mechanism is provided with a drive system, and a power input position of the drive system is located directly above or below the cross member.

2. The printing apparatus of claim 1 wherein said guide support means are provided in at least two sets, two sets of said guide support means being symmetrically disposed with respect to said beam.

3. A printing device comprising at least:

an apparatus main body;

the ink car mechanism at least comprises a cross beam and an ink car which are fixedly arranged on the equipment main body, the ink car stretches across the cross beam, a guide supporting mechanism which extends along the length direction of the cross beam is arranged between the ink car and the cross beam, a first spray head module which is positioned on one side of the cross beam and a second spray head module which is positioned on the other side of the cross beam are arranged at the bottom of the ink car, the first spray head module and the second spray head module are continuous, the first spray head module and the second spray head module are symmetrically or asymmetrically arranged relative to the cross beam, and an integral spray head module formed by the first spray head module and the second spray head module penetrates through the position under the cross beam; the medium platform is fixed on the equipment main body and positioned below the ink car, and the medium platform is provided with an integral continuous medium bearing surface;

the medium bearing platform is characterized in that a medium bearing surface of the medium platform is obliquely arranged, the medium bearing surface and a longitudinal section central plane of the cross beam are in a vertical relation, an included angle between the medium bearing surface and the vertical direction is A, the value of A is more than or equal to 0 degree and less than 90 degrees, and when A =0 degree, the medium bearing surface is in a vertical state; the guide supporting mechanism comprises a guide rail and a guide groove which are matched with each other; the carriage mechanism is provided with a drive system, and a power input position of the drive system is located directly above or below the cross member.

4. A printing apparatus according to claim 3, wherein said guide support means are provided in at least two sets, two sets of said guide support means being symmetrically disposed with respect to said cross member.