CN114474994B - Printing apparatus for printing along peripheral side surface and control method - Google Patents
Printing apparatus for printing along peripheral side surface and control method Download PDFInfo
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- CN114474994B CN114474994B CN202111632082.8A CN202111632082A CN114474994B CN 114474994 B CN114474994 B CN 114474994B CN 202111632082 A CN202111632082 A CN 202111632082A CN 114474994 B CN114474994 B CN 114474994B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
- B41J3/40733—Printing on cylindrical or rotationally symmetrical objects, e. g. on bottles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J25/001—Mechanisms for bodily moving print heads or carriages parallel to the paper surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
- B41J3/40731—Holders for objects, e. g. holders specially adapted to the shape of the object to be printed or adapted to hold several objects
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ink Jet (AREA)
Abstract
The application belongs to the technical field of printing, solves the technical problem of low applicability in the existing printing equipment, and provides a printing equipment for printing along the peripheral side face and a control method. Wherein the apparatus comprises: a rail, one side of which is provided with a printing medium; the printing mechanism is arranged on the track and is used for spraying liquid to a region to be printed of the medium to be printed according to a preset spraying speed; the driving mechanism is connected with the printing mechanism and is used for driving the printing mechanism to rotate around the periphery of the medium to be printed along the track. The printing mechanism always moves correspondingly in the range of the printing area no matter what the ratio of the printing medium is, so that the printing mechanism does not pass through the non-printing area, and the printing data of the printing mechanism only need to be set for the printing area, thereby being convenient for printing; has the advantages of convenient control of printing and the like.
Description
Technical Field
The present application relates to the field of printing technology, and in particular, to a printing apparatus and a control method for printing along a peripheral side surface.
Background
For a print medium such as a cylinder that needs to be printed in the circumferential direction, the print medium needs to be rotated around its own axis to print.
Existing cylinder printing is typically rotated by gripping one end of the media to be printed, and printing is performed on the rotating circumferential side by a print head. The printing device is only suitable for being applied to the circumferential side surface of a printing area which surrounds the printing medium for a whole circle, and when the printing area is a small part on the circumferential side wall and does not cover the printing medium for a circle, the nozzle of the printing device needs to represent a large part of nozzle holes which cannot emit ink, so that the printing medium can print a required pattern. However, this type of printing apparatus is not suitable because it requires a large number of orifices that are not capable of producing ink when the print area is a small portion of the print medium, and is thus inconvenient to print. Therefore, the existing printing apparatus has a technical problem of low applicability.
Disclosure of Invention
In view of the above, the embodiments of the present application provide a printing apparatus and a control method for printing along a peripheral side, so as to solve the technical problem that some printing apparatuses have low applicability.
An embodiment of the present application provides a printing apparatus that prints along a peripheral side surface, the printing apparatus including:
a rail, one side of which is provided with a printing medium;
the printing mechanism is arranged on the track and is used for spraying liquid to a region to be printed of the medium to be printed according to a preset spraying speed;
the driving mechanism is connected with the printing mechanism and is used for driving the printing mechanism to rotate around the periphery of the medium to be printed along the track.
Further, the track is a circular track.
Further, the driving mechanism includes: a first drive assembly for driving the printing mechanism around the circumference of the medium to be printed.
Further, the driving mechanism further includes: and the second driving assembly is used for driving the printing mechanism to move towards or away from the printing medium so as to adjust the distance between the printing mechanism and the printing medium.
Further, the driving mechanism further includes: and the third driving assembly is used for driving the printing medium and/or the printing mechanism to move up and down along the axis direction of the printing medium so as to enable the printing medium and the printing mechanism to move relatively along the axis direction of the printing medium.
Further, the apparatus includes a clamping mechanism located inside the rail for clamping the print medium.
In a second aspect, the present application provides a control method of printing along a peripheral side surface, the method comprising:
acquiring position information of a region to be printed of a printing medium;
calculating the movement path of the print trolley relative to the track according to the position information;
the print carriage is controlled to move along the movement path to eject liquid to the area to be printed.
Further, the method further comprises:
acquiring the current distance from a spray nozzle of a spray head on a printing trolley to the printing area;
judging whether the current distance meets a preset value or not;
if not, adjusting the distance from the spray nozzle of the spray head on the printing trolley to the printing area to a preset value.
Further, the method further comprises:
acquiring current position information of a print trolley relative to a track;
and if the current position information is overlapped with the initial position information, controlling a spray head on the printing trolley to stop spraying liquid.
Further, the method further comprises:
acquiring a starting position of a motion path, and confirming initial data of the printing data according to the starting position;
splitting the initial data to obtain first initial data and second initial data;
the first initial data is used as first initial data of which the printing small Che Di passes through the initial position once;
and taking the second initial data as second initial data of the printing trolley passing through the initial position for the second time.
In summary, the beneficial effects of the application are as follows:
according to the application, the printing medium is clamped by the clamping mechanism, the printing medium is fixed in the printing process, the printing mechanism is driven to move around the printing medium according to a preset path, and the printing mechanism always moves correspondingly in the range of the printing area no matter what the printing medium is, so that the printing area does not pass through the non-printing area, and the printing data of the printing mechanism only need to be set for the printing area, thereby being convenient for printing. The technical problem of low applicability in the existing printing equipment is solved.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly described, and it is within the scope of the present application to obtain other drawings according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a printing apparatus according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a structure of a print near a print medium according to an embodiment of the present application;
FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;
FIG. 4 is an exploded view of a printing apparatus according to a first embodiment of the present application;
FIG. 5 is a schematic illustration of a print medium according to a first embodiment of the present application;
fig. 6 is a flowchart of a control method in the second embodiment of the present application.
Parts and numbers in the figures:
1. a clamping mechanism; 2. a printing mechanism; 3. a first drive assembly; 31. a stator; 311. an annular groove; 32. a mover; 321. a clamping block; 33. an annular guide rail; 4. a second drive assembly; 41. a driving member; 42. a slide rail; 5. a third drive assembly; 6. a mounting frame; 7. a print medium; 8. a track.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application,
Is fully described. It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present application, it should 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 the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, 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 process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element. If not conflicting, the embodiments of the present application and the features of the embodiments may be combined with each other, which are all within the protection scope of the present application.
The present application is described in further detail below in conjunction with fig. 1-6.
Example 1
The first embodiment of the application provides a printing device for printing along the peripheral side face, which is used for printing along the peripheral side face of a printing medium, wherein the printing medium can be a cylinder, a cone, a tetrahedron and the like, or flexible materials are wound on a columnar substance, a printing area is formed on the surface of the columnar substance, and the printing device is suitable for printing with any proportion of the printing area. Referring specifically to fig. 1, the printing apparatus includes:
the printing medium 7 is placed on one side of the track 8, the track 8 can be a ring-shaped track 8 or an arc-shaped track 8, and specifically, the shape of the track 8 can be determined according to the printing area of the printing medium 7 to be printed.
The printing mechanism 2 is arranged on the track 8 and is used for spraying liquid to the area to be printed of the medium 7 to be printed according to a preset spraying speed; the printing structure can be directly arranged on the track 8, and can also be arranged on the track 8 in a magnetic suspension mode, so that the printing mechanism 2 can be rapidly driven to move without barriers, and rapid and accurate printing can be realized.
And the driving mechanism is connected with the printing mechanism 2 and is used for driving the printing mechanism 2 to rotate around the circumference of the medium 7 to be printed along the track 8. The rotational path of the driving printing mechanism 2 is set according to the printing area.
In the present embodiment, the print area may be on the side surface of the print medium 7, may be on the peripheral side surface covering the entire print medium 7, or may be on a partial area of the side surface of the print medium 7. Furthermore, the print medium 7 may be a cylinder, cone, or other three-dimensional shaped object; and the sides of the print medium 7 may be regular or irregular.
The preset path is set according to the ratio of the printing area to the printing medium 7 and the surface shape of the printing medium 7; specifically, if the print area is within 100% of the side of the print medium 7 (the specific ratio can be adjusted according to the requirement), the motion path of the print mechanism 2 is controlled to move along the area to be printed, and after moving from one end to the other end, the print mechanism 2 or the print medium 7 is driven to step to perform the superposition print area in height; if the printing area is just 100%, the printing mechanism 2 can be selectively controlled to make a circle around the printing medium 7; the printing mechanism 2 or the printing medium 7 is then driven to step, and the superimposed printing area in height is performed. The ratio of the printing area to the printing medium 7 is in any range, the printing device can be applied to all the spray holes, and the spray holes which cannot emit ink do not need to be characterized, so that the programming control printing is facilitated, and the ink spraying of the printing mechanism 2 is further facilitated to be controlled. If the side of the print medium 7 is of a regular shape, such as on a cylindrical or planar sided print medium 7, the printing mechanism 2 is controlled to perform a regular movement along the side of the print medium 7; if the side surface of the printing medium 7, namely the printing area is irregularly shaped, the distance from the printing mechanism 2 to the printing area is acquired, and the movement of the printing mechanism 2 is adjusted at any time so that the movement path of the printing mechanism 2 is adapted to the change of the surface of the printing area; as shown in fig. 5, the hatched portion represents a printing area, and the entire represents the printing medium 7; when the print area occupies only a part of the print medium 7, the preset path moves corresponding to the print area.
The printing medium 7 can be clamped by the clamping mechanism 1 or the printing medium 7 can be borne by the bearing mechanism, and can also be directly placed on one side of the track 8; in this embodiment, the printing mechanism 2 adopts a side-mounted manner, and in the printing process, the printing medium 7 is stationary, the printing mechanism 2 is driven to move around the printing medium 7 according to a preset path, and regardless of the duty ratio of the printing medium 7, the printing mechanism 2 always moves correspondingly within the range of the printing area, so that the printing mechanism 2 does not pass through the non-printing area, and therefore the printing data of the printing mechanism 2 only need to be set for the printing area, and printing is facilitated. The technical problem of low applicability in the existing printing equipment is solved.
In addition, the printing device in the prior art is generally applicable to industrial printing, the more common printing device structure is to set a transmission mechanism to transmit the printing medium 7, in addition, the printing mechanism 2 needs to be driven to move towards the printing medium 7, the occupied area of a plurality of mechanisms arranged on the printer is large, the printing process is complicated, and the printing device is only applicable to industrial assembly line printing and needs a larger occupied space. Therefore, such a printing apparatus has a technical problem that it is not suitable for small-place printing; the printing equipment provided by the application is only provided with the clamping mechanism 1 for clamping the medium 7 to be printed, and only one driving mechanism is required to drive the printing mechanism 2 to move, so that the volume of the whole equipment is smaller, the used mechanisms of the whole equipment are fewer, the equipment can be well integrated, the structure of the whole equipment is more compact, and the maximum occupied area of the volume of the whole equipment can be reduced to be within half a meter. The printing apparatus provided by the present application can be used in places with narrow space such as shops, families, etc. In addition, the cost is greatly reduced due to the arrangement without excessive mechanism setting, so that the printing equipment is suitable for more consumption groups, and the universal applicability of the printing equipment is improved. Further, when the user needs to customize the print pattern, the image to be printed and the size information of the print medium 7 are acquired on the upper computer, the print pattern is simulated and pasted on the print medium 7 image, the specific print area position information is acquired, a preset driving path is generated, and the printing mechanism 2 is driven to move according to the driving path; the user can perform custom printing according to the pattern desired to be printed. Not only the printed pattern but also the size of the print area, i.e. the ratio of the entire printed pattern to the print medium 7, can be set by the user; and further, customized printing of the printing equipment is realized. Therefore, the printing equipment solves the technical problem that the prior printing equipment is not suitable for small-place printing; the printing device has the advantages of being suitable for small places and capable of achieving small-batch and customized printing.
The liquid ejected by the printing mechanism 2 includes: one or more of gloss oil, white ink, color ink, and coating; the number of the spray heads is set corresponding to the type of the liquid; that is, one head ejects one liquid correspondingly. The spray head is arranged on the surface of the printing mechanism 2, and correspondingly, a curing lamp is arranged on the side surface of the spray head, and the distance between the curing lamp and the spray head is 150 mm; the energy of the curing lamp is avoided to dry the spray head, and then the spray head is blocked. The curing lamp is cured in a normally-on mode; with the relative movement with the printing medium 7, after the liquid is ejected, the ejected liquid is directly solidified by the solidifying lamp, so that the liquid is prevented from moving along the printing medium 7 due to the influence of gravity of the liquid. Specifically, in this embodiment, two nozzles are provided to print the coating and the color ink. The spray head positioned at the extreme end sprays the coating firstly, and the curing device dries the coating on the printing medium 7; along with the relative movement relation of the printing medium 7 and the printing mechanism 2, the printing medium 7 is stepped in the axial direction, so that the position of the next spray head corresponding to the position of the last spray head for spraying color ink is printed, and the printing is overlapped in this way, and finally, all the printing is finished. In other embodiments, the printing mechanism 2 prints in the order of coating, white ink, color ink, varnish.
Further, the track 8 is a ring-shaped track 8.
In the present embodiment, the rail 8 is provided in a circular ring shape, and the provision of the rail 8 in a circular ring shape facilitates the driving of the printing mechanism 2 in motion. In other embodiments, the shape of the track 8 may be set according to the shape of the print medium 7, preferably, the shape of the track 8 is similar to the print medium 7, and the print medium 7 is coaxially arranged with the track 8.
Further, as shown in fig. 1 and 4, the driving mechanism includes: a first driving assembly 3 for driving the printing mechanism 2 around the circumference of the medium 7 to be printed.
In this embodiment, the first driving unit 3 drives the printing mechanism 2 to perform a circular motion, and in this embodiment, the print medium 7 is illustrated as a cylinder, and this embodiment is suitable for printing on a curved surface in a three-dimensional pattern for a print area. The first driving assembly 3 drives the printing medium 7 to perform circular motion or arc-shaped motion around the printing medium 7, so that the printing mechanism 2 always moves along the printing area within a certain distance. The printing equipment is more suitable for printing cylinders or rotating bodies capable of rotating around the axis of the printing equipment to print, and the printing equipment provided by the embodiment has the technical effect of being convenient for printing. The first driving component 3 can adopt a driving mode of a ring motor; or the rotary table is driven, the printing mechanism 2 is arranged at an eccentric position of the rotary table, which is deviated from the rotary shaft of the rotary table, so that the printing mechanism 2 forms circular motion around the printing medium 7; alternatively, the printing medium 7 may be set on a large gear, a small gear is engaged with the large gear on the peripheral side, and then a motor may be set to drive the small gear and further drive the large gear to move. Those skilled in the art can drive the printing mechanism 2 to perform circular motion according to actual needs and in different configurations corresponding to different usage scenes, so long as the printing mechanism 2 is driven to perform circular motion.
As shown in fig. 1 in combination with fig. 1 and 4, the first driving assembly 3 includes: a stator 31 and a mover 32; the rotor 32 is connected with the stator 31, and one side of the rotor 32 far away from the stator 31 is connected with the printing mechanism 2; the stator 31 is annular, and the track 8 and the stator 31 are arranged coaxially. The stator is arranged on the rail 8 and is arranged coaxially with the rail 8.
In this embodiment, the first driving component 3 is driven by an annular motor, specifically, the stator 31 is in a ring shape, and the clamping mechanism 1 is disposed at the inner ring of the stator 31 and is disposed coaxially with the stator 31; when the stator 31 is energized, a magnetic field is generated, which moves the mover 32 along the shape of the stator 31, thereby moving the printing mechanism 2 around the printing medium 7. And the stator 31 and the clamping mechanism 1 are arranged on the same central shaft, so that the distance from the stator 31 to the printing medium 7 is consistent, and the distance from the printing mechanism 2 to the printing medium 7 is conveniently controlled. In other embodiments, an annular groove 311 is formed on the stator 31 such that the mover 32 performs an annular movement along the annular groove 311.
Preferably, as shown in fig. 1, the first driving assembly 3 further includes: a circular guide rail 33; the annular guide rail is arranged on the track 8, and the annular guide rail 33 and the stator 31 are arranged with the same central axis; the mover 32 is provided with a mating portion which is connected to the circular guide rail 33 and is movable along the circular guide rail 33 to guide the mover 32.
In the present embodiment, the annular guide 33 is provided protruding the annular groove 311, and the upper end surface of the annular guide 33 is in the same plane as the upper end surface of the stator 31; the printing mechanism 2 is enabled to move along the annular guide rail 33, so that the printing mechanism 2 is enabled to move stably, and the printing effect is ensured.
Preferably, as shown in fig. 4, the fitting portion includes: the clamping blocks 321 are clamped on two sides of the annular guide rail 33, and balls (not shown in the figure) are arranged on the clamping blocks; the balls are disposed in the sides of the engagement blocks 321 facing each other.
In the embodiment, the clamping block 321 is clamped on the annular guide rail 33, and the balls are arranged to reduce the friction between the annular guide rail 33 and the clamping block 321; the balls are provided so that the fitting portion slides on the annular guide 33, and the printing mechanism 2 moves on the annular guide 33.
Preferably, the nozzle of the printing mechanism 2 ejects the liquid at a preset ejection speed, wherein the preset ejection speed ranges from: 6 to 12 meters per second.
In this embodiment, 9 meters per second is preferred. The liquid ejected by the printing mechanism 2 is allowed to fall accurately onto the printing medium 7 without parabolic motion.
Further, in connection with fig. 2 and 3, the driving mechanism further includes: a second drive assembly 4 for driving the printing mechanism 2 towards or away from the print medium 7 to adjust the distance of the printing mechanism 2 from the print medium 7.
In this embodiment, specifically, the second driving component 4 is disposed at the output end of the first driving component 3, and the second driving component 4 drives the printing mechanism 2 to move, so as to adjust the distance between the printing mechanism 2 and the printing medium 7, that is, adjust the radial distance between the printing mechanism 2 and the central axis of the printing medium 7; with the arrangement, the printing medium 7 always prints the printing medium 7 within a preset distance range, so that the printing effect is ensured; thus, the printing apparatus adapts to different radii of the print medium 7.
More specifically, the device further comprises a ranging mechanism, wherein the ranging mechanism is arranged on one surface of the spray hole of the printing mechanism 2; the distance measuring mechanism is used for detecting the actual distance from the printing mechanism 2 to the surface of the printing medium 7; whether the actual distance is within a preset distance range is judged, if not, the second driving assembly 4 is controlled to drive the printing mechanism 2 to move so that the distance from the printing mechanism 2 to the printing medium 7 is within the preset range. The distance measuring mechanism detects the real-time distance from the printing mechanism 2 to the printing medium 7 in real time and feeds the data back to the control system, so that the movement of the printing mechanism 2 is controlled in real time, and the distance from the printing mechanism 2 to the surface of the printing medium 7 is monitored in real time. With reference to fig. 1 and 2, therefore, when the print cone, or the side of the print medium 7 where the print area is located, is irregularly shaped, the printing mechanism 2 can adjust the distance from the printing mechanism 2 to the surface of the print medium 7 according to the radial dimension change of the print medium 7; enabling the device to adapt to different radii or irregular print media 7.
Preferably, as shown in fig. 4, the second driving assembly 4 includes: a driving member 41 and a slide rail 42; the driving member 41 is connected to the slide rail 42, and the driving member 41 drives the printing mechanism 2 along the slide rail 42 toward or away from the printing medium 7.
In the present embodiment, the driving member 41 is provided in such a manner that a motor drives a screw, and the slide rail 42 is provided on the printing mechanism 2, the sliding direction of the slide rail 42 always pointing to the axis of the printing medium 7. The printing mechanism 2 is moved in the radial direction of the printing medium 7.
Preferably, the predetermined distance is in the range of 1 mm to 3 mm.
In this embodiment, preferably 2 mm, the printing mechanism 2 is prevented from being far from the printing medium 7, and the liquid ejected by the printing mechanism 2 moves in a parabolic manner, thereby causing displacement.
Further, the driving mechanism further includes: and the third driving assembly 5 is used for driving the printing medium 7 and/or the printing mechanism 2 to move up and down along the axis direction of the printing medium 7 so as to enable the printing medium 7 and the printing mechanism 2 to move relatively along the axis direction of the printing medium 7.
In the present embodiment, the third drive assembly 5 is connected to the printing mechanism 2; the printing mechanism 2 is enabled to move along the axial direction of the printing medium 7 according to the length of the printing medium 7, so that printing is finished more intelligently. Specifically, the apparatus further comprises a mounting frame 6: the clamping mechanism 1 passes through the mounting frame 6 and extends upwards, and the driving mechanism is arranged on the mounting frame 6. The third driving assembly 5 is configured as a worm gear automatic lifter, specifically, is connected to the mounting frame 6, and further drives the driving mechanism to move along the axis direction of the printing medium 7. The third driving component 5 drives the printing medium 7 to move along the axial direction of the printing medium 7, so that the superposition of the printing medium 7 in the axial direction is realized, namely, the stepping of the printing medium 7 in the axial direction is realized; and then printing of the whole image is completed. In other embodiments, the third driving assembly 5 is connected with the printing medium 7, and in particular, is connected with the clamping mechanism 1 to drive the clamping mechanism 1 to be connected so as to drive the medium 7 to be printed to ascend and descend; in this embodiment, the print medium 7 is driven to lift, so that the first driving component 3 and the second driving component 4 do not need to be driven, the driving force of the third driving component 5 is reduced as much as possible, and energy is saved.
Further, the apparatus further comprises a clamping mechanism 1, the clamping mechanism 1 being located inside the track 8 for clamping the print medium 7.
In the present embodiment, the clamping mechanism 1 includes: the first clamping arm and the second clamping arm are fixed. The clamping mechanism 1 is arranged to clamp and fix the printing medium 7, so that printing is more accurate.
The principle of the application is as follows:
placing the printing medium 7 in the clamping mechanism 1, and clamping the printing medium 7 by the clamping mechanism 1; then selecting an image to be printed on the upper computer, pasting the printed image on the printing medium 7 after the upper computer acquires the printed image, adjusting the proportion according to the requirement by a user, and then confirming the printing area; generating a motion path of the printing mechanism 2 according to the printing area, and controlling the printing mechanism 2 to move along the printing path and controlling ink ejection on the surface of the printing medium 7 by the controller; finally, a print pattern is formed on the surface of the print medium 7.
Example two
An embodiment II of the present application provides a method for controlling printing along a peripheral side, which is specifically used in the printing apparatus according to any one of the embodiments I, and in particular, in conjunction with FIG. 6, the method includes:
acquiring position information of a region to be printed of a printing medium; the area to be printed is on the side of the printing medium 7, either on the peripheral side surface covering the entire printing medium 7 or on a partial area of the side surface of the printing medium 7. Furthermore, the print medium 7 may be a cylinder, cone, or other three-dimensional shaped object; and the sides of the print medium 7 may be regular or irregular.
Calculating a motion path of the print trolley relative to the track according to the position information; the shape of the track 8 is pre-stored on the system, a grating is arranged on the track 8, the position of the printing mechanism 2 at the corresponding grating is read, and the position information of the printing area is pasted in the system, so that the position information of the medium 7 to be printed relative to the track 8 is determined.
The print carriage is controlled to move along a movement path to eject liquid to an area to be printed. The preset path is set according to the ratio of the printing area to the printing medium 7 and the surface shape of the printing medium 7; specifically, if the print area is within 100% of the side of the print medium 7 (the specific ratio can be adjusted according to the requirement), the motion path of the print mechanism 2 is controlled to move along the area to be printed, and after moving from one end to the other end, the print mechanism 2 or the print medium 7 is driven to step to perform the superposition print area in height; if the printing area is just 100%, the printing mechanism 2 can be selectively controlled to make a circle around the printing medium 7; the printing mechanism 2 or the printing medium 7 is then driven to step, and the superimposed printing area in height is performed. The ratio of the printing area to the printing medium 7 is in any range, the printing device can be applied to all the spray holes, and the spray holes which cannot emit ink do not need to be characterized, so that the programming control printing is facilitated, and the ink spraying of the printing mechanism 2 is further facilitated to be controlled. If the side of the print medium 7 is of a regular shape, such as on a cylindrical or planar sided print medium 7, the printing mechanism 2 is controlled to perform a regular movement along the side of the print medium 7; if the side surface of the printing medium 7, namely the printing area is irregularly shaped, the distance from the printing mechanism 2 to the printing area is acquired, and the movement of the printing mechanism 2 is adjusted at any time so that the movement path of the printing mechanism 2 is adapted to the change of the surface of the printing area; as shown in fig. 5, the hatched portion represents a printing area, and the entire represents the printing medium 7; when the print area occupies only a part of the print medium 7, the preset path moves corresponding to the print area.
In this embodiment, during the printing process, the printing medium 7 is stationary, the printing mechanism 2 is driven to move around the printing medium 7 according to a preset path, and the printing mechanism 2 always moves within the range of the printing area regardless of the ratio of the printing medium 7, so that the printing mechanism 2 does not pass through the non-printing area, and therefore the printing data of the printing mechanism 2 only need to be set for the printing area, and printing is facilitated. The technical problem of low applicability in the existing printing equipment is solved.
Further, the method comprises the following steps:
acquiring the current distance from a spray nozzle of a spray head on a printing trolley to a printing area; a distance measuring mechanism may be provided to test the distance of the nozzle from the spray head in the print carriage, in particular, the closest distance to the surface of the print zone is regarded as the distance of the nozzle from the print zone.
Judging whether the current distance meets a preset value or not;
if not, adjusting the distance from the spray nozzle of the spray head on the printing trolley to the printing area to a preset value.
In this embodiment, preferably 2 mm, the printing mechanism 2 is prevented from being far from the printing medium 7, and the liquid ejected by the printing mechanism 2 moves in a parabolic manner, thereby causing displacement. The distance is adjusted through the second adjusting component, so that ink is sprayed according to the preset spraying speed within the preset distance range, and the printing quality is guaranteed.
Further, the method comprises the following steps:
acquiring current position information of the print trolley relative to the track 8;
and if the current position information is overlapped with the initial position information, controlling a spray head on the printing trolley to stop spraying liquid.
In this embodiment, the grating is set on the track 8, and the information of the printing mechanism 2 relative to the track 8 is determined by using the grating, and when the printing mechanism 2 moves for one circle, the printing mechanism 2 is controlled to stop spraying liquid, so that on one hand, the printing quality is ensured, and the printing mechanism 2 is prevented from moving in the moving process, even if the printing mechanism 2 is controlled to stop moving, at this time, because the mass of the printing mechanism 2 is larger, the inertial movement is larger, and the ghost image can appear at the splicing position. Therefore, by detecting the movement path of the printing mechanism 2, the start of the nozzle is controlled, and the printing precision is improved.
Further, the method comprises the following steps:
acquiring a starting position of a motion path, and confirming initial data of the printing data according to the starting position;
splitting the initial data to obtain first initial data and second initial data;
the first initial data is used as first initial data of which the printing small Che Di passes through the initial position once;
and taking the second initial data as second initial data of the initial position of the printing trolley passing through for the second time.
In the present embodiment, the start position, that is, the start point of the area to be printed of the print medium 7 with respect to the rail 8, the length of the start position may be set according to the size of the print medium 7. And splitting the printing data corresponding to the initial position to form eclosion splicing at the initial position, so that ghost images are avoided at the initial position of printing, and the printing precision is ensured.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (6)
1. A printing apparatus that prints along a peripheral side surface, the printing apparatus comprising:
a rail, one side of which is provided with a printing medium;
the printing mechanism is arranged on the track and is used for spraying liquid to a region to be printed of the printing medium according to a preset spraying speed;
the track is an annular track;
a drive mechanism, the drive mechanism comprising: a first drive assembly coupled to the printing mechanism for driving the printing mechanism along a track around a perimeter of the print medium;
the clamping mechanism is positioned at the inner side of the track and used for clamping the printing medium;
the first driving assembly comprises a circular stator, a rotor and an annular guide rail, the clamping mechanism is arranged at the inner ring of the stator and is coaxially arranged with the stator, the stator is arranged on the track and is coaxially arranged with the track, when the stator is electrified, a magnetic field is generated to enable the rotor to move along the shape of the stator, the printing mechanism further moves around the printing medium, an annular groove is formed in the stator to enable the rotor to move along the annular groove, the annular guide rail is arranged on the track, and the annular guide rail and the stator are coaxially arranged; the rotor is provided with a matching part connected with the annular guide rail, the matching part can move along the annular guide rail, the annular guide rail protrudes out of the annular groove, and the upper end face of the annular guide rail and the upper end face of the stator are positioned on the same plane;
the matching part comprises clamping blocks and balls, the clamping blocks are clamped on two sides of the annular guide rail, and the balls are arranged in one sides of the clamping blocks, which face each other;
the drive mechanism further includes: a second drive assembly for driving the printing mechanism toward or away from the print medium to adjust the distance of the printing mechanism from the print medium; the second driving assembly includes: the driving piece is connected with the sliding rail, the sliding rail is arranged on the printing mechanism, and the driving piece drives the printing mechanism to move towards or away from the printing medium along the sliding direction of the sliding rail.
2. The printing apparatus for printing along a peripheral side surface according to claim 1, wherein the driving mechanism further comprises: and the third driving assembly is used for driving the printing medium and/or the printing mechanism to move up and down along the axis direction of the printing medium so as to enable the printing medium and the printing mechanism to move relatively along the axis direction of the printing medium.
3. A control method of printing along a peripheral side surface, characterized in that the control method is for controlling the printing apparatus of claim 1 or 2, the method comprising:
acquiring position information of a region to be printed of a printing medium;
calculating a motion path of the printing mechanism relative to the track according to the position information;
the printing mechanism is controlled to move along the movement path to eject liquid to the area to be printed.
4. A control method of printing along a peripheral side surface according to claim 3, wherein the method further comprises:
acquiring the current distance from a spray nozzle of a spray head on a printing mechanism to the region to be printed;
judging whether the current distance meets a preset value or not;
if not, adjusting the distance from the nozzle of the spray head on the printing mechanism to the region to be printed to a preset value.
5. A control method of printing along a peripheral side surface according to claim 3, wherein the method further comprises:
acquiring current position information of a printing mechanism relative to a track;
and if the current position information is overlapped with the initial position information, controlling a spray head on the printing mechanism to stop spraying liquid.
6. A control method of printing along a peripheral side surface according to claim 3, wherein the method further comprises:
acquiring a starting position of a motion path, and confirming initial data of the printing data according to the starting position;
splitting the initial data to obtain first initial data and second initial data;
taking the first initial data as first initial data of the printing mechanism passing through the initial position for the first time;
and taking the second initial data as second initial data of the printing mechanism passing through the initial position for the second time.
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| CN202111632082.8A CN114474994B (en) | 2021-12-28 | 2021-12-28 | Printing apparatus for printing along peripheral side surface and control method |
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| CN114474994A (en) | 2022-05-13 |
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