CN216579774U - Liquid performance test equipment with printing function - Google Patents

Abstract

The utility model belongs to the technical field of print, there is the technical problem that there is great error in the liquid drop observation result in the printing apparatus among the solution prior art, provide a liquid capability test equipment of function is printed in area. The apparatus comprises: a cross beam; the liquid observation mechanism is positioned below the cross beam; the printing trolley is arranged on the cross beam and is provided with a spray head used for spraying liquid towards the printing medium or the liquid observation mechanism; the liquid observation mechanism includes: the acquisition part is used for acquiring liquid drop images jetted by the nozzles of the plurality of nozzles within preset time; the collection range of the collection part at least covers the ejection surface of the nozzle. The utility model discloses in owing to set up liquid observation mechanism, ensured that the error between the observation result does not receive the influence of a lot of installations, and this equipment has the printing function. The method has the effects of reducing observation errors and improving the observation precision of the liquid flight condition.

Description

Liquid performance test equipment with printing function

Technical Field

The utility model relates to a print technical field, especially relate to a liquid capability test equipment of function is printed in area.

Background

Printing is a technology of spraying liquid (such as ink, coating, processing liquid, etc.) on a printing medium by adopting a spraying mode, and patterns, characters, etc. are formed on the printing medium to play a role in decorating and marking the printing medium. During the printing process, appropriate ejection parameters (such as waveforms) need to be set so that the liquid forms a precise and stable printing pattern on the surface of the printing medium. When appropriate ejection parameters are set, the performance of the liquid (such as performance tests of ink precision, ink flying, fluency and the like) is usually required to be tested, and the appropriate ejection parameters are set according to the performance of the liquid, so that a printing pattern with higher precision and better performance can be formed in the printing process.

The flight speed of the liquid drop is a very important liquid performance index, and the flight speed of the liquid drop directly reflects whether the jetting parameters of the liquid drop printing are proper or not. In order to observe the flight speed of the droplets during printing, a droplet observation instrument is generally purchased, and when the flight speed of the droplets needs to be tested, the droplet observation instrument is placed below the printing trolley, so that the printing trolley ejects liquid corresponding to the flight speed of the droplets, and the flight speed of the droplets is detected.

However, this method of measuring the speed of droplet flight usually requires the transport of the droplet observation apparatus and the reinstallation of the droplet observation apparatus for each measurement. In this process, there is a certain error in the installation of the droplet observation instrument between two times, which results in an error in the result observed by the droplet observation instrument each time. Therefore, the existing printing equipment has the technical problems of observation results of the flight condition of the liquid drops and large errors.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the utility model provides a liquid capability test equipment of function is printed in area is provided, has the observation result of the liquid droplet flight condition among the solution prior art to printing apparatus, has the technical problem of great error.

The utility model provides a liquid capability test equipment of function is printed in area, equipment includes:

a cross beam;

the liquid observation mechanism is positioned below the cross beam;

the printing trolley is arranged on the cross beam and is provided with a spray head used for spraying liquid towards a printing medium or the liquid observation mechanism;

the liquid observing mechanism includes: the acquisition part is used for acquiring liquid drop images jetted by the nozzles of the plurality of nozzles within preset time; the collection range of the collection part at least covers the spray surface of the nozzle.

Further, the direction of the nozzle row of the nozzle is perpendicular to the collecting direction of the collecting part.

Further, the test equipment further comprises a first driving mechanism; the printing medium is positioned below the cross beam and on one side of the liquid observation mechanism, and the first driving mechanism is used for driving the printing trolley to reciprocate on the printing medium and the liquid observation mechanism.

Further, the liquid observation mechanism comprises an observation space for the printing trolley to pass through, two opposite sides of the observation space are provided with openings, and one opening is positioned on one side of the observation mechanism, which is close to the printing medium; the driving mechanism drives the printing trolley to enter or leave the observation space from the two openings respectively, so that the printing trolley is positioned in the observation space to jet liquid, and the acquisition part acquires a liquid drop image.

Further, the test apparatus further comprises: the bearing mechanism is used for bearing a printing medium; the bottom of the observation space is lower than or flush with the upper end surface of the printing medium carried by the carrying mechanism.

Further, the collection range of the collection part covers the height from the upper end face of the bearing mechanism to the spraying face of the sprayer for spraying liquid.

Further, the liquid observation mechanism further comprises a cover body, and the cover body is arranged in the observation space in a covering mode.

Furthermore, the test equipment also comprises a zero setting mechanism for setting the zero and returning to the spray head, and after the zero setting mechanism sets the zero and returns to the spray head, the first driving mechanism drives the printing trolley to correspond to the printing medium or liquid observation mechanism; the printing trolley ejects liquid towards the printing medium and the liquid observing mechanism.

Further, equipment still includes waste liquid collection mechanism and work platform, waste liquid collection mechanism slide set up in work platform, and be located the below of liquid observation mechanism is used for accepting the liquid that the print dolly erupted.

Further, the liquid observation mechanism is provided with a leakage part which is communicated with the observation space, and liquid sprayed by the spray head enters the waste liquid collection mechanism from the leakage part.

Further, the liquid observing mechanism further includes: and the adjusting component is used for adjusting the relative position of the acquisition part and the printing trolley so as to enable the spraying surface of the spray head to be within the acquisition range of the acquisition part.

To sum up, the utility model has the advantages that:

the utility model discloses in, owing to set up liquid observation mechanism in test equipment, in the flight condition when needs test liquid print, only need to print the dolly and remove to liquid observation mechanism's top, start printing the dolly and spray liquid, make and print the dolly and correspond liquid observation mechanism and spray and print. Compared with the prior art, the liquid observation mechanism does not need to be carried, and the liquid observation mechanism does not need to be installed for multiple times, so that the observation space of the liquid observation mechanism is relatively fixed every time, and installation errors caused by installation are avoided, thereby ensuring that errors between two observation results are not influenced by errors of multiple times of installation, and solving the technical problem that the droplet observation results of the printing equipment in the prior art have larger errors; the method has the effects of reducing observation errors and improving the observation precision of the liquid flight condition. In addition, when the printing trolley ejects liquid towards a printing medium, the testing equipment can have printing performance, so that one piece of equipment has multiple functions and can meet the requirements of producing and testing the liquid at the same time.

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 schematic structural diagram of a testing apparatus according to an embodiment of the present invention;

fig. 2 is a front view of the testing device according to the first embodiment of the present invention after the casing is removed;

fig. 3 is a schematic view of the testing apparatus according to the first embodiment of the present invention after the casing is removed;

fig. 4 is a perspective view of the testing device according to the first embodiment of the present invention after the casing is removed;

fig. 5 is a side view of the testing apparatus according to the first embodiment of the present invention after the casing is removed;

fig. 6 is an exploded view of a second driving mechanism according to a first embodiment of the present invention;

FIG. 7 is a schematic diagram of a droplet ejection according to a first embodiment of the present invention;

fig. 8 is a schematic structural view of a liquid observing mechanism according to a first embodiment of the present invention;

fig. 9 is an exploded view of a liquid observing mechanism according to a first embodiment of the present invention;

fig. 10 is a schematic view of another viewing angle of the liquid observing mechanism according to the first embodiment of the present invention;

fig. 11 is a top view of the testing device according to the first embodiment of the present invention after the casing is removed;

fig. 12 is a schematic view of the testing apparatus according to the first embodiment of the present invention after the casing is removed;

fig. 13 is a schematic structural view of a placement frame according to a first embodiment of the present invention;

fig. 14 is a schematic view of a rack according to a first embodiment of the present invention;

fig. 15 is a schematic view of the lower portion of the working platform according to the first embodiment of the present invention;

fig. 16 is a partial schematic view of a printing cart according to a second embodiment of the present invention;

fig. 17 is an exploded view of a testing apparatus according to a third embodiment of the present invention;

fig. 18 is a control flow chart of a method according to a second embodiment of the present invention.

In the figure:

1. a working platform; 11. a support frame; 110. an accommodating chamber; 111. a weak current component; 112. a strong current component; 2. printing the trolley; 21. a first type of showerhead; 22. a second type of spray head; 23. a carrier; 24. a zero setting mechanism; 241. a force application part; 242. a screw rod; 25. a frame body; 3. a second drive mechanism; 31. a power member; 32. a driver; 33. placing the frame; 4. a first drive mechanism; 41. a cross beam; 5. a liquid observation mechanism; 51. an observation space; 52. a housing; 53. a collecting part; 54. a cover body; 55. a waste liquid collection mechanism; 56. a leak portion; 57. mounting a plate; 58. an adjustment assembly; 6. a liquid scraping mechanism; 61. a liquid receiving tank; 62. a drainage structure; 7. a carrying mechanism; 8. placing a rack; 81. a placement section; 82. a frame body; 83. a fixed part; 84. a seal member; 9. a housing; 10. and (5) original liquid bottles.

100. A first region; 200. a second region; 300. a third region; 400. a fourth region; 500. a zero adjustment area; 600. a printing area; 700. and (6) observing the area.

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. It is noted that, herein, relational terms such as first and second, and the like may be 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 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 in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application. Also, 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 identical elements in a process, method, article, or apparatus that comprises the element. In case of conflict, the embodiments and features of the embodiments of the present application may be combined with each other and are within the scope of the present application.

The present invention will be described in further detail with reference to fig. 1 to 18.

The utility model provides a liquid that test equipment involves is including being used for one or more in white ink, color ink, gloss oil, the coating etc. of printing. The present invention will be described in detail below with reference to the ink as a liquid. Other liquids are consistent in principle with respect to performance testing, with the specific difference that the ejection parameters set differ from material to material.

Implementation mode one

Example one

The embodiment of the utility model provides a liquid performance test equipment of function is printed in area both can realize printing etc. production with this equipment, also can utilize this equipment to realize testing liquid performance. The utility model relates to the liquid performance of test includes but is not limited to: at least one of the satellite number of the ink dot, the printing straightness of the ink dot and the size uniformity of the ink dot can be obtained, and other liquid testing performances such as fluency can be included in order to obtain more accurate liquid performance. What kind of test specifically need be applied to no longer does the restriction here, all can characterize the parameter of printing liquid performance, all be in the utility model discloses a within the range of protection. Specifically, the liquid performance test is to control a single-row nozzle to spray dot images formed once on a printing medium, and observe the characteristics corresponding to each dot image to obtain the performance of the ink.

With reference to fig. 1 and 2, the test apparatus includes: the testing apparatus includes a beam 41, and a zeroing area 500, a printing area 600, and an observation area 700 which are independent of each other are sequentially formed along a length direction of the beam 41. The zeroing zone 500, the printing zone 600, and the observation zone 700 cover partial areas below and above the cross beam 41; specifically, the cross beam 41 is divided into several regions along the length direction thereof, wherein each region corresponds to the zero region 500, the printing region 600 and the observation region 700. When the printing trolley 2 is positioned in the area, the liquid sprayed by the spray head is used for observing the flight condition of the liquid drops.

The liquid observation mechanism 5 is positioned below the cross beam 41, specifically below the observation area 700; the liquid observing mechanism 5 includes a lens or a camera, and captures the ink droplets by using the lens to acquire data such as flying speed, volume, and shape of the ink droplets. The principle of observing ink droplets by the liquid observing mechanism 5 is the prior art, and the applicant does not give any further details.

The printing trolley 2 is arranged on the cross beam 41, and is provided with a nozzle used for spraying liquid towards the printing medium or the liquid observation mechanism 5; setting ink ejection parameters such as waveforms in a test apparatus, ejecting liquid by ink-pressing inside a waveform-driven head, forming a print image or a test image when ejecting liquid on a printing medium, making the test apparatus have a print function, and testing the liquid properties, one of the liquid properties being able to be tested when ejecting liquid toward the liquid observing mechanism 5: droplet flight conditions.

The liquid observing mechanism 5 includes: the acquisition part 53 is used for acquiring liquid drop images ejected by nozzles of a plurality of nozzles within preset time; the collection range of the collection portion 53 covers at least the ejection face of the nozzle, and the collection portion 53 employs a camera, and the collection range thereof is dispersed from the axis of the collection portion 53 to the periphery, and presents a collection angle from a side view, that is, the manner employed in the present application is that the image collected by the collection portion 53 is liquid from the nozzle away from the nozzle.

In this embodiment, the liquid observation mechanism 5 is arranged in the test equipment, and when the flight condition of the liquid printing needs to be tested, the printing trolley 2 is started to eject the liquid by only moving the printing trolley 2 to the position above the liquid observation mechanism 5, so that the printing trolley 2 performs ejection printing corresponding to the liquid observation mechanism 5. Compared with the prior art, the liquid observation mechanism 5 does not need to be carried, and the liquid observation mechanism 5 does not need to be installed for multiple times, so that the observation part of the liquid observation mechanism 5 is relatively fixed every time, and installation errors caused by installation are not generated, thereby ensuring that errors between two observation results are not influenced by errors of multiple times of installation, and solving the technical problem that the droplet observation results of the test equipment in the prior art have larger errors; the method has the effects of reducing observation errors and improving the observation precision of the liquid flight condition. In addition, when the printing carriage 2 ejects liquid toward the printing medium, the test device can have printing performance, and therefore, one device has multiple functions and can meet the requirements of producing and testing liquid at the same time.

Further, the direction of the nozzle row of the head is perpendicular to the collecting direction of the collecting section 53.

In this embodiment, the number of rows of nozzle rows of a single head corresponds to K, C, M, Y four-color ink, that is, the head ejects liquid in a single row of nozzle rows and the observation unit observes ejection in a single pass in a single row of nozzle rows. Avoid the observation confusion caused by the one-time injection of a plurality of rows of nozzle rows. In addition, the collecting direction of the collecting part 53 is perpendicular to the direction of the nozzle row, so that the structure of the whole equipment is more compact.

With reference to fig. 3 and 11, the testing apparatus further includes a working platform 1, and the working platform 1 includes a first area 100, a second area 200, a third area 300, and a fourth area 400.

In this embodiment, the work platform 1 divides the entire test apparatus into upper and lower halves. The upper half part is an operation area, and the lower half part is a placement area; the whole test equipment is reasonable in partition and compact in structure. The liquid observing mechanism 5 is correspondingly disposed in the third region 300. The third region 300, the first region 100, and the second region 200 are sequentially arranged in the first direction.

Further, with reference to fig. 3 and 4, the testing apparatus further includes a first driving mechanism 4; the printing medium is positioned below the cross beam 41 and on one side of the liquid observing mechanism 5, and the first driving mechanism 4 is used for driving the printing trolley 2 to reciprocate on the printing medium and the liquid observing mechanism 5. Another area of the beam 41 corresponds to the printing zone 600, and the head ejects liquid to the printing medium when the printing carriage 2 is located in the printing zone 600. The first driving mechanism 4 drives the printing trolley 2 to reciprocate between the printing area 600 and the observation area 700; before or after the spray head sprays liquid towards the liquid observation mechanism 5 in the observation area 700, the first driving mechanism 4 drives the printing trolley 2 until the printing area 600 corresponds to the printing medium, so that the spray head sprays liquid towards the printing medium in the printing area 600 to form a test image.

In the embodiment, the first driving mechanism 4 is arranged to drive the printing trolley 2 to move (along the direction of arrow X in fig. 4), so as to switch the printing function and the liquid testing function of the whole device. Of course, the functions that can be realized by the present apparatus in the print area 600 are not limited to print production, and the test functions can be realized by printing the test image in the print area 600 as well. The first driving mechanism 4 drives the printing trolley 2 to move by adopting a mode of driving a screw rod by a motor. On the one hand, the printing carriage 2 increases the printing width of the printing medium in steps during the printing process. Next, the first driving mechanism 4 drives the carriage 2 to reciprocate between the liquid observing mechanism 5 and the second driving mechanism 3. In the embodiment, the printing trolley 2 is driven to be above the observation mechanism by the stepping function of the first driving mechanism 4 for driving the printing trolley 2, so that the printing and observation modes are switched.

Further, with reference to fig. 4 and 5, the liquid observing mechanism 5 includes an observing space 51 for the printing cart 2 to pass through, and two opposite sides of the observing space 51 have openings, and one of the openings is located on one side of the observing mechanism close to the printing medium; the driving mechanism drives the printing cart 2 to enter or leave the observation space 51 through the two openings, respectively, so that the liquid is ejected from the observation space 51, and the liquid droplet image is collected by the collecting unit 53.

In the present embodiment, as shown in fig. 5, the printing cart 2 ejects liquid corresponding to the observation space 51, so that the observation space 51 in the observation mechanism can just collect the flying condition of the liquid. The observation space 51 means that the carriage 2 ejects the liquid corresponding to the observation space 51 at a predetermined position. The size of the observation space 51 corresponds to the width of the carriage 2 and is slightly larger than the width of the carriage 2. The specific position of the observation space 51 is arranged corresponding to the position of the cross beam 41; the printing trolley 2 can spray liquid to the observation space 51 by moving to the observation space 51 along the cross beam 41, the structure is ingenious, and the movement control program is simple. Furthermore, the two ends of the observation space 51 are provided with openings, and the openings are close to the printing area 600, the utility model discloses there are two kinds of possibilities in the implementation process: one is that after the printing trolley 2 is positioned in the printing area 600 and printing is finished, the first driving framework drives the printing trolley 2 to enter the observation space 51 from an opening at one side; alternatively, after the printing cart 2 is located in the observation area 700 to eject the liquid, the first driving structure drives the printing cart 2 to leave the observation space 51 from an opening on one side to move to the printing area 600 to realize the printing function. Therefore, the liquid observation mechanism 5 arranged in this way enables the printing trolley 2 to move along the cross beam 41, and the switching between the printing area 600 and the observation area 700 can be realized without lifting the printing trolley 2, and in addition, because the spray head can be influenced to a certain extent in the lifting process of the zero point of the spray point, the printing trolley 2 moves along a straight line, and two functions can be directly switched without resetting the zero point, so that the liquid observation mechanism has the advantages of simple operation, ingenious structure and high test speed.

Further, as shown in fig. 5 and 8, the liquid observing mechanism 5 includes a housing 52, and the housing 52 forms an observing space 51.

In the present embodiment, the liquid observing mechanism 5 includes a main unit, which is accommodated inside the casing 52, and the casing 52 is substantially a hollow rectangular parallelepiped; and the longitudinal direction of the housing 52 coincides with the observation direction of the acquisition part 53. The shell 52 wraps the host to achieve the function of protecting the host; an observation space 51 is formed on the housing 52 so that the printing mechanism ejects liquid to the observation space 51.

Preferably, as shown in fig. 5 and 9, the liquid observing mechanism 5 further includes a collecting portion 53, the observing space 51 is formed in a notch shape, and the collecting portion 53 is provided on a side wall of the observing space 51.

In this embodiment, the observation space 51 is in a notch shape, and after the print carriage 2 is clamped above the notch, the opposite surface of the collecting part 53 blocks light to directly irradiate the collecting part 53, so that the pollution of ambient light is reduced, and the test result of liquid flight is further improved.

Further, as shown in fig. 5 and fig. 7, the testing apparatus further includes: the bearing mechanism 7 is used for bearing the printing medium; the bottom of the observation space 51 is lower than or flush with the upper end surface of the printing medium carried by the carrying mechanism 7. The distance h from the upper end surface of the bearing mechanism 7 to the spraying surface of the spraying head for spraying liquid₁(ii) a The height from the bottom of the observation space to the ejection face is h₂(ii) a Wherein h is₂Greater than h₁。

In the present embodiment, the support mechanism 7 is a plate-shaped structure; the direction of the nozzle row of the head is parallel to the driving direction of the first driving mechanism 4. Since the movement direction of the carriage 2 coincides with the longitudinal direction of the nozzle row, the observation direction of the observation mechanism can be made perpendicular to the driving direction of the first driving mechanism 4. In this way, the support mechanism 7 can be disposed on one side in the observation direction. Since the observation direction is parallel to the length direction of the liquid observer. Therefore, the bearing mechanism 7 is arranged on one side of the liquid observation instrument in the length direction, and in this way, the structure of the whole testing device is more compact. In addition, bearing mechanism 7 corresponds the setting in work platform 1's first region 100, and the bottom of observing space 51 is less than the up end of printing medium, and consequently, the motion space that the motion of observing space 51 for printing dolly 2 provided is convenient for print dolly 2 along a rectilinear motion to observing space 51, realizes not needing to zero again just can directly switch over two functions, consequently, has easy operation, the ingenious and fast advantage of test speed of structure.

Further, with reference to fig. 4 and fig. 6, the apparatus further includes: and the second driving mechanism 3 is connected with the bearing mechanism 7 and is used for driving the bearing mechanism 7 to drive the printing medium to move along the direction vertical to the nozzle rows.

In this embodiment, the second driving mechanism 3 drives the carrying mechanism 7 to reciprocate, so as to drive the printing medium and the printing trolley 2 to reciprocate, thereby realizing reciprocating scanning. In addition, the driving direction of the first driving mechanism 4 is perpendicular to the scanning direction of the second driving mechanism 3, and the scanning direction of the second driving mechanism 3 is parallel to the observation direction of the liquid observation mechanism 5, so that the whole device is more compact. In addition, the first driving mechanism 4 drives the printing trolley 2 to move along the driving direction of the first driving mechanism 4, so that the printing trolley 2 can step relative to a printing medium, and the printing width of the printing medium is increased. In addition, the second driving mechanism 3 drives the printing medium to move, prints one line, and judges whether the line is broken, so that the blockage condition of the nozzle can be detected. Therefore, the second driving mechanism 3 is provided, so that the test apparatus can also have the function of a printed product, and the test apparatus can have diversified functions.

Further, as shown in fig. 6, the second drive mechanism 3 includes: the power piece 31 is connected with the driving piece 32, and the power piece 31 drives the driving piece 32 to drive the printing medium to reciprocate.

In this embodiment, the second driving mechanism 3 includes a placing frame 33, a power member 31 configured as a driving motor, a driving member 32 configured as a lead screw, one end of the lead screw passing through one end of the placing frame 33 in the length direction and fixed in the placing frame 33, and the other end connected to the power member 31. The second driving mechanism 3 further comprises a guide piece, and the guide piece is parallel to the screw rod, so that the screw rod rotates to drive the printing medium to reciprocate. In other embodiments, the power member 31 may be configured as an air cylinder, and the driving member 32 may be configured as a push rod to drive the printing medium to move linearly. The bearing mechanism 7 is a plate-shaped structure, the lower part of the bearing mechanism penetrates through the screw rod and moves along the guide piece, and the bearing plate is mainly used for bearing the printing medium with the plate-shaped structure.

Further, as shown in fig. 6 and 11, the second driving mechanism 3 is installed in the first area 100, and the first area 100 is located in the middle of the working platform 1.

In the present embodiment, the first area 100 is located in the middle of the work platform 1, and a placing space is formed on both sides of the second driving mechanism 3. More specifically, the longitudinal direction of the first area 100 is parallel to the second direction, and the second driving mechanism 3 covers the first area 100, and the longitudinal direction of the first area 100 crosses the work platform 1. Therefore, placing spaces are formed on two sides of the working platform along the scanning direction of the second driving mechanism 3, and when liquid performance such as the flying speed of liquid drops needs to be tested (certainly, the performance test of the liquid is not limited to the flying speed of the liquid drops, and the test is carried out by additionally adding equipment within the protection range of the utility model); at this moment, place liquid droplet observation mechanism on placing the space, make liquid droplet observation mechanism's observation direction perpendicular with the direction of shower nozzle row, at this moment, second actuating mechanism 3 can not restrict liquid observation mechanism 5, and liquid observation mechanism 5 is abreast with second actuating mechanism 3, has reduced whole test equipment's volume, has improved space utilization. The technical problems that the test equipment in the prior art is large in size, needs large occupied space and is low in space utilization rate are solved. The method has the advantages of ensuring high-precision printing, testing the performance of the liquid and further improving the printing precision.

Further, the observation direction of the liquid observation mechanism 5 is parallel to the second direction (the second direction is the direction of the arrow Y in fig. 11).

In this embodiment, the observing direction of the liquid observing mechanism 5 is parallel to the second driving mechanism 3, so that the volume of the whole equipment is smaller, the structural design is more compact and ingenious, and the space utilization rate of the whole equipment is further improved.

Further, as shown in fig. 11 and fig. 5, the testing apparatus further includes a liquid scraping mechanism 6, the working platform 1 further includes a third area 300, the third area 300 is used for installing the liquid scraping mechanism 6, and the liquid scraping mechanism 6 is used for scraping off the residual liquid on the surface of the nozzle of the spray head.

In the present embodiment, before the head ejection, the relative position of the Z axis of the carriage 2 is adjusted above the wiping mechanism 6, and at this time, the initial position of the carriage 2 is returned to 0. In the process, the liquid at the spray head can also drop from the spray head, and the dropped ink drops fall into the liquid scraping mechanism 6, so that the liquid drops are prevented from polluting other mechanisms of the testing equipment, and even the printing quality is prevented from being influenced.

As shown in fig. 3, the liquid scraping mechanism 6 is arranged on the side of the second driving mechanism 3 away from the liquid observing mechanism 5; the first driving mechanism 4 drives the printing trolley 2 to sequentially pass through the liquid scraping mechanism 6, the second driving mechanism 3 and the liquid observing mechanism 5. At scraping liquid mechanism 6 departments, the liquid drop sanitization that will print 2 shower nozzles of dolly department, when spraying the liquid drop, last time the liquid drop of spraying remaining in shower nozzle department can not influence next time and spray, and then improved the accuracy of observation and liquid performance's test result.

As shown in fig. 3, the liquid scraping mechanism 6 includes a scraper having a longitudinal direction facing the direction of the nozzle row of the head, and a liquid scraping direction parallel to the scanning direction. A liquid receiving groove 61 is arranged below the liquid scraping mechanism 6, a liquid guiding structure 62 is arranged in the liquid receiving groove 61, and the liquid guiding structure 62 is wave-shaped; after the liquid is separated from the nozzle, the liquid slides down to the bottom of the liquid receiving tank 61 along the inclined surface of the liquid guiding structure 62. The wiping mechanism 6 can be used to wipe off accumulated ink at the nozzles and receive waste ink. On the other hand, the liquid scraping mechanism 6 is arranged on one side of the second driving mechanism 3, and waste ink generated when the printing trolley 2 is zeroed is received by the ink receiving groove of the liquid scraping mechanism 6, so that one mechanism has multiple purposes, and the use of raw materials is saved; on the basis of ensuring the compact structure of the whole printer, the production cost is reduced.

The second driving mechanism 3 is detachably mounted on the working platform 1.

In this embodiment, when a printing medium such as a paper is required to be printed, the accuracy of printing can be improved by driving the lead screw by the motor. When printing media with larger volume and mass are required to be printed, the current second driving mechanism 3 is disassembled, and driving modes such as a belt and the like are replaced; the printing medium range that whole test equipment was suitable for is wider, makes test equipment suitability wider.

Further, the second driving mechanism 3 drives the carrier mechanism 7 to reciprocate in the second direction.

In the embodiment, the method is mainly applied to multi-Pass reciprocating scanning, and the multi-Pass reciprocating scanning is utilized to improve the printing precision. Compared with the prior art, the utility model discloses adopt the motion of second actuating mechanism 3 with scanning motion, no longer use print 2 and advance reciprocating motion, consequently, at the printing in-process, print medium is along the nozzle row direction vertically direction motion with the shower nozzle. Due to the fact that the printing medium reciprocates, the movement path of the printing trolley 2 in the scanning and printing process can be reduced, when the performance of liquid needs to be tested, the observing direction of the liquid observing mechanism 5 can be parallel to the second driving mechanism 3, the liquid observing mechanism 5 and the second driving mechanism 3 are arranged in order, the size of the whole device is reduced, the occupied area of the device is reduced, and the space utilization rate is improved. The utility model discloses at the in-process of printing, print medium places back on second actuating mechanism 3, and 3 drive print medium reciprocating motion of second actuating mechanism print 2 relatively static in print medium's single reciprocating motion to print medium surface jet liquid.

In other embodiments, depending on the print media, such as cylindrical print media, a rotating clamping mechanism may be provided to rotate the print media around its own axis and rotate relative to the nozzle, and at this time, the printing cart 2 is stationary to perform inkjet printing on the rotating print media. The rotation axis of the rotary clamping mechanism is parallel to the driving direction of the first driving mechanism 4.

Further, as shown in fig. 7, the collection range of the collection portion 53 covers the height from the upper end surface of the support mechanism 7 to the ejection surface from which the head ejects the liquid.

In the present embodiment, the distance h from the upper end surface of the support mechanism 7 to the ejection surface of the ejection head for ejecting the liquid₁(ii) a The height from the bottom of the observation space to the ejection face is h₂(ii) a Wherein h is₂Greater than h₁. In fig. 7, an angle a is a schematic view of the collecting range of the collecting part, and the collecting range of the collecting part 53 can collect all movement paths of the liquid ejected by the nozzle in the process from the nozzle to the printing medium, so that all changes of the whole liquid drop in the printing process can be observed.

Further, as shown in fig. 5 and 8, the liquid observing mechanism 5 further includes a cover 54, and the cover 54 is provided to cover the observation space 51.

In this embodiment, the cover 54 is adapted to the observation space 51 to cover the observation space 51, so as to avoid polluting the lens of the collecting unit 53 in idle time and affecting the next observation quality.

Further, with reference to fig. 2 and 11, the testing apparatus further includes a zeroing mechanism for zeroing and resetting the nozzles, when the zeroing mechanism zeroes the nozzles, an area of the cross beam 41 is also a zeroing area 500, and after the zeroing mechanism printing cart 2 is located in the zeroing area to zero and reset the nozzles, the first driving mechanism 4 drives the printing cart 2 until the printing area 600 corresponds to the printing medium or the observation area 700 corresponds to the liquid observation mechanism 5; the printing carriage 2 ejects liquid toward the printing medium and the liquid observing mechanism 5 in the observation area 700 at the printing area 600. Thereafter, the first drive mechanism 4 drives the print carriage 2 to move to the zeroing zone 500. When the printing trolley 2 is positioned in the zeroing area 500, the nozzle of the printing trolley 2 to be sprayed with liquid is zeroed and returned; the cross beam 41 is connected with the printing trolley 2, the zeroing area 500 is arranged adjacent to the printing area 600, and zeroing means the printing position of the corresponding sprayer at the beginning of returning; which is equivalent to the initialization of the spray head to be sprayed. The first aspect of zero setting of the spray head is to ensure that the relative position of the spray head in the Z-axis direction is determined, namely the height position of the corresponding spray head is fixed. The second aspect is to ensure that the liquid corresponding to the nozzles of the nozzles is in an initialized state, so as to avoid idle printing caused by the liquid of the nozzles being influenced and dropped during the last printing process of the nozzle to be sprayed.

In this embodiment, the same kind of shower nozzle zero setting just once can realize printing and liquid observation, consequently zero setting once before printing or observing makes whole process quicker, and gets back to zero setting district 500 again after printing and zero setting all end, when having guaranteed zero setting, has also accelerated whole process's speed.

In this embodiment, as shown in fig. 5, the nozzle generates waste liquid during the zeroing process, and the liquid receiving tank 61 is configured to receive the waste liquid generated during the adjustment of the nozzle, so as to avoid polluting the working environment.

Further, as shown in fig. 3 and fig. 11, the testing apparatus further includes a waste liquid collecting mechanism 55 (shown in the figures, the waste liquid collecting mechanism 55 slides along the working platform to be separated from the lower part of the liquid drop observing mechanism, and is covered with a cover), and the working platform 1, wherein the waste liquid collecting mechanism 55 is slidably disposed on the working platform 1, is located below the liquid observing mechanism 5, and is used for receiving the liquid ejected from the printing cart 2.

In this embodiment, the waste liquid collecting mechanism 55 is arranged in the fourth area 400 of the working platform 1, the position of the working platform corresponding to the observation space 51 is provided with a notch, the waste liquid collecting mechanism 55 is arranged below the working platform and is detachably connected with the working platform, and when ink received by the waste liquid collecting mechanism 55 reaches a certain volume, the waste liquid collecting mechanism 55 is transferred from the working platform and is poured out. The fourth region 400 is formed with a notch, and the waste liquid collecting mechanism 55 is mounted with the waste liquid collecting mechanism 55 from the notch, so that the waste liquid collecting mechanism 55 is located below the liquid observing mechanism 5 to receive the waste liquid from the liquid observing mechanism 5. The fourth area 400 is placed in close proximity to the second area 200, such that the fourth area 400 is at the edge of the work platform 1, which facilitates the removal of the waste liquid collecting means 55 from the fourth area 400, while at the same time allowing compact placement of the means on the other areas.

Further, as shown in fig. 3 and 10, the liquid observation mechanism 5 is provided with a leak portion 56, the leak portion 56 communicates with the observation space 51, and the liquid ejected from the head enters the waste liquid collection mechanism 55 from the leak portion 56.

In this embodiment, the leakage part 56 is disposed at the bottom of the observation space 51, and after the printing trolley 2 ejects liquid corresponding to the observation space 51, the collection part 53 directly observes the flying condition of the liquid, and then the liquid ejected from the printing trolley 2 directly falls into the waste liquid collection mechanism 55, and the waste liquid collection mechanism 55 receives the liquid, so as to avoid splashing of the liquid all around and cause environmental pollution.

In addition, the axis of the collecting part 53 is higher than the upper end surface of the bearing mechanism 7, and at this time, the collecting range of the collecting part 53 covers the spraying surface of the liquid sprayed by the spraying head and the hollow part 56; specifically, the upper end of the leak portion 56 is covered. The liquid is ejected from the nozzle of the nozzle, passes through the observation space 51 and enters the leaking portion 56, and the collecting portion 53 can collect the movement path of the liquid drop in the whole process to observe the flying condition of the liquid drop in the whole process. Therefore, the provision of the leak portion 56 also has an increased range of observation, and therefore, an increase in the height of the ejected nozzle to the surface of the printing medium can also be observed by the apparatus, and thus, the liquid observation performance can also be measured at the same time for the flying of the liquid in the printing method of high head, which makes the application range of the entire apparatus wider.

Further, referring to fig. 8 and 9, the liquid observing mechanism 5 further includes: and the adjusting assembly 58 is used for adjusting the relative position of the collecting part 53 and the printing trolley 2, so that the ejection surface of the ejection head is in the collecting range of the collecting part 53.

In the present embodiment, the liquid observing mechanism 5 further includes an adjusting component 58, and the adjusting component 58 is used for adjusting the relative position of the collecting part 53 and the printing trolley 2.

Specifically, the liquid observing mechanism 5 further includes: and the mounting plate 57 is used for mounting the shell 52 of the liquid observation mechanism 5, and the screw rod is connected with the shell 52 and drives the shell 52 to reciprocate. The adjusting assembly 58 is disposed on one side of the housing 52 in the length direction, and the housing 52 of the adjusting assembly liquid observing mechanism 5 moves along the direction of the arrow X, so that the observing space 51 corresponds to a specific ink jet head, and therefore, the specific ink jet head can be observed without providing an excessively wide observing space 51.

In other embodiments, the distance of the acquisition part 53 from the nozzle row corresponding to the ejection liquid can be adjusted by the adjustment assembly 58.

Preferably, the adjusting assembly 58 is connected to the housing 52 for adjusting the distance from the collecting part 53 to the nozzle row for ejecting the liquid within a preset range according to the position of the nozzle row for ejecting the liquid. So as to ensure that the collection part 53 can accurately observe the flight condition of the liquid drops.

If the preset range of the distance from the pickup unit 53 to the nozzle row for ejecting the liquid is 10 mm, the distance between the observation space 51 of the pickup unit 53 and the nozzle row in the first row is 10 mm when the nozzle row in the first row is observed, and the pickup unit 53 observes the state of the liquid droplets ejected from the corresponding nozzle row after the nozzle row in the first row is ejected. Then, the second row of nozzles is controlled to spray, the shell 52 is controlled to drive the collecting part 53 to move 1 mm according to the distance 1 mm between each row of nozzle rows, the distance from the observation space 51 position established for observation to the second row of nozzles is kept at 10 mm, the distance of each observation is consistent, and therefore the error of the observation result is small. Since the distance between the nozzle rows is small, the adjustment accuracy of the adjustment assembly 58 is high, and the adjustment assembly 58 is set in a motor-driven screw manner.

Further, the device also comprises a liquid inlet mechanism which sucks liquid from the original liquid bottle 10 to the spray head so as to spray the liquid by the spray head.

In this embodiment, the apparatus includes at least two ink supply systems, each ink supply system corresponding to one of the nozzle arrangements. Compared with the prior art, the primary liquid box is omitted, the primary liquid box is directly replaced by the primary liquid bottle 10, the liquid inlet mechanism sucks the primary liquid from the primary liquid bottle 10, the primary liquid is prevented from being deteriorated in the process of transferring to the primary ink box, or in the using process, the primary liquid box is large in size, more liquid is accumulated, liquid precipitation is caused, the viscosity is changed, and therefore testing errors are caused.

Further, as shown in fig. 12, the testing apparatus further includes a placing frame 8, which is disposed on one side of the working platform 1 away from the printing trolley 2, specifically below the working platform 1, and the placing frame 8 is used for placing the original liquid bottle 10; liquid inlet mechanism, liquid inlet mechanism one end and shower nozzle intercommunication, the other end and the former bottle 10 intercommunication of liquid, liquid inlet mechanism and the former bottle 10 of liquid can be dismantled and be connected, and liquid inlet mechanism is used for drawing liquid to the shower nozzle from the former bottle 10 of liquid. The original bottle of liquid is an original bottle purchased from an ink factory. Preferably a 500 ml original bottle 10 of liquid. The phenomenon that the performance test of the liquid is influenced due to the fact that the stock solution is deteriorated, such as viscosity is changed, is avoided when excessive liquid is accumulated at the bottom of the original bottle. Of course, depending on the speed of the actual printing process, a specific volume of the original liquid bottle 10 may be placed as desired.

In the embodiment, the printing trolley 2 carries a nozzle, specifically a piezoelectric inkjet nozzle; feed liquor mechanism adopts the feed liquor mechanism similar with prior art, for prior art, the utility model discloses cancelled the one-level liquid box, set up rack 8 for place the former bottle 10 of liquid. Therefore, the liquid inlet mechanism sucks liquid from the original bottle of the liquid, the possibility of deterioration of the liquid in the transfer process is reduced, meanwhile, the deterioration of the original liquid due to contact with the outside air is also reduced, and in addition, the phenomenon that the original liquid is excessively accumulated in the primary liquid box to cause the change of the viscosity of the liquid and cause the inaccurate performance test of the liquid is reduced, so that the test is not accurate; in addition, set up rack 8, directly extract liquid from former bottle 10 of liquid, and feed liquor mechanism can dismantle with former bottle 10 of liquid and be connected. The liquid does not pass through the primary liquid box, so that when the ink needs to be replaced, the original liquid bottle 10 printed at present is directly taken down, and then the original liquid bottles 10 of other types are replaced, so that the liquid is convenient to replace; the technical problems that the existing testing equipment is complicated in test liquid replacement and complex in operation are solved. The device has the advantages of high-precision liquid performance testing, convenience in liquid replacement, simplicity in operation and the like.

Further, with reference to fig. 12 and fig. 15, the test apparatus further includes: the supporting frame 11, the supporting frame 11 is used for supporting the working platform 1, and forms the holding cavity 110 used for holding components with the working platform 1.

In this embodiment, the support frame 11 includes support legs and a bottom plate, the support frame 11 is rectangular, and four planes are formed on the periphery of the support frame 11. After all electronic components are placed in the accommodating cavity 110, the whole printer is compact in structure and neat in appearance.

Further, the accommodating cavity 110 includes a first accommodating area for accommodating the placing rack 8, and an opening of the first accommodating area faces the outside of the supporting rack 11.

In this embodiment, the first receiving area is located on one side of the support frame 11, and the opening is from the side of the support frame 11, so that the operator can replace the original liquid bottle 10 from the side, thereby facilitating the replacement of the original liquid bottle 10. The opening of the placing frame 8 is in the same direction as the opening of the first accommodating cavity 110. The whole accommodating cavity 110 is arranged in a partitioned mode, so that the components are orderly, and the structure of the whole printer is neat.

Further, with reference to fig. 1 and 12, the test apparatus includes: and the machine shell 9 is arranged on the support frame 11, and covers the accommodating cavity 110.

In the embodiment, the housing 9 is enclosed outside the supporting frame 11, a relatively sealed cavity is formed with the supporting frame 11 and the working platform 1, and the housing 9 is movable relative to the supporting frame 11. Different surfaces can be provided as sliding doors, rotating doors, etc. to open the accommodating cavity 110. Rack 8 is located work platform's below, and installs on support work platform's support frame 11, and rack 8 sets up the lower part that is located casing 9, makes the former bottle 10 of liquid be located lower position, and feed liquor mechanism just can flow to shower nozzle department from the former bottle 10 suction liquid of liquid, avoids the former bottle 10 of liquid to place too high, flows to shower nozzle department automatically.

Preferably, the housing 9 is detachably connected to the rack 8.

In this embodiment, be provided with the screw mounting hole on rack body 82 of rack 8, through this screw mounting hole with rack 8 demountable installation on casing 9, place the former bottle 10 of liquid of different size of volume when needs, pull down rack 8 from casing 9, change the rack 8 of other models, make the former bottle 10 of liquid that rack 8 can the adaptation correspond.

Preferably, the inner wall of the housing 9 is provided with a light shielding layer.

In this embodiment, the light shielding layer is made of an ultraviolet-resistant material or an opaque material, and is disposed to prevent light from directly irradiating the original liquid bottle 10 to affect the properties of the liquid in the original liquid bottle 10, which affects the performance test of the liquid in the original bottle.

Further, as shown in fig. 15, the accommodating chamber 110 includes: and a second accommodation region adjacent to the first accommodation region, the second accommodation region being for accommodating the light-current component 111. The receiving chamber 110 includes: and a third accommodation area adjacent to the second accommodation area for accommodating the strong electric component 112.

In this embodiment, the supporting frame 11 further includes supporting legs perpendicular to each other, and located in the middle of the accommodating chamber 110. The support legs, which are perpendicular to each other, divide the entire receiving chamber 110. And all the electronic components are managed in a partition mode. The second accommodating area is positioned on one side adjacent to the first accommodating area, and the third accommodating area is parallel to the first accommodating area; the strong current electric appliances and the weak current electric appliances are separated, and mutual interference between the strong current electric appliances and the weak current electric appliances is avoided. In addition, all the electrical appliances are arranged in different areas, so that the use of the whole accommodating cavity 110 is relatively neat. The electrical appliance can not be excessively messy.

Further, with reference to fig. 13 and 14, the rack 8 includes: the liquid bottle includes a frame body 82 and a placing part 81, wherein the placing part 81 is installed at the bottom of the frame body 82, and the placing part 81 is used for placing the liquid original bottle 10.

In this embodiment, the frame body 82 is provided with an L-shaped sheet metal structure, so that the structure of the frame body 82 is stable, and in addition, the frame body 82 is provided with the placing part 81, so that the placing part 81 is located at the bottom of the whole frame body 82, and the whole placing frame 8 is convenient to install.

Preferably, referring to fig. 13 and 14, the rack 8 includes a plurality of independent placing units 81, and each placing unit 81 is used for placing the original liquid bottle 10.

In this embodiment, each of the placing portions 81 places a separate original liquid bottle 10. The size of the placing part 81 is adapted to the size of the original bottle, and the placing part 81 suitable for the size of the original liquid bottle 10 of 500 ml is preferably provided. The placing part 81 is in a rectangular frame shape, the circular bottles are limited from the width direction of the placing part 81, if original bottles with large volume need to be placed, the original bottles can be further in a rectangular shape, the volume of the original bottles is increased, and therefore the placing rack 8 can be adapted to the original bottles with large volume.

Preferably, in conjunction with fig. 13 and 14, each of the peripheral side walls of the placement section 81 is provided with a heat insulating layer.

In this embodiment, the heat insulation layer is disposed on the side wall of the placing rack 8 and the inside of the placing portion 81, so as to reduce the heat exchange between the liquid inside the original liquid bottle 10 and the environment, thereby affecting the property of the liquid inside the original bottle and affecting the test result of the liquid performance. Therefore, the utility model discloses in set up the insulating layer, reduce the rotten possibility of liquid, promoted the accuracy of test.

The placing portion 81 includes a frame and a partition plate, the partition plate and the frame are detachably connected, and a relative position between the partition plate and the frame is adjustable. The relative position between the partition plate and the frame body is adjusted, thereby adjusting the size of the space of the placing portion 81. Thus, depending on how fast the printing speed is, and how fast the liquid is to be used, the appropriate liquid bottle 10 can be selected to meet the use requirements within a given time without accumulating too much in the bottle. Furthermore, the possibility of liquid deterioration is reduced, and the accuracy of liquid performance test is improved.

Further, with reference to fig. 13 and 14, the rack 8 includes: and the fixing part 83 is arranged at the upper part of the frame body 82, and is used for fixing the pipeline of the liquid inlet mechanism.

In this embodiment, the fixing portion 83 includes the parcel portion of joint portion and parcel pipeline, parcel portion parcel pipeline to with the parcel portion joint in joint portion, with this fixed of realization pipeline. The fixing part 83 is arranged to fix the pipeline of the liquid inlet mechanism, so that the pipeline of the liquid inlet mechanism is neat and can not interfere with each other, and even the equipment is unstable.

Preferably, in conjunction with fig. 13 and 14, the apparatus further includes a seal 84, the seal 84 being adapted to seal the opening of the bottle 10.

In this embodiment, the seal 84 is provided as a cap that fits over the liquid bottle 10. Preferably, a sealing element 84 matched with the caliber of the original liquid bottle 10 of 500 ml is selected, the sealing element 84 is detachably connected with a liquid inlet pipeline of a liquid inlet mechanism, the liquid inlet pipeline penetrates through the sealing element 84, the sealing element 84 is covered at the bottle mouth of the original liquid bottle 10 so as to seal the unsealed original liquid bottle 10, and the phenomenon that the unsealed liquid is exposed in the air and can go bad for a long time is reduced; the testing accuracy of the liquid performance is further improved.

With reference to fig. 13 and 14, the printing carriage 2 mentioned above includes: the bearing frame 23 is used for bearing the sprayer, and the bearing frame 23 is a frame for bearing the sprayer and is made of sheet metal materials.

Preferably, each of the heads is arranged in a direction of the head nozzle row.

In this embodiment, the various nozzles are mounted on the carrier plate of the carrier 23, so that the nozzles are arranged side by side along the length direction of the carrier plate and extend along the length direction of the carrier plate, thereby making the entire printing mechanism relatively flat and compact. On the other hand, when the liquid flying speed needs to be tested and the liquid observing mechanism 5 needs to be used, the direction of the nozzle row of the nozzles is vertical to the observing direction of the liquid observing mechanism 5, and the nozzles are arranged along the direction of the nozzle row, so that the liquid droplet observing mechanism can simultaneously observe the flying speed, the size, the shape and the like of the liquid ejected by the two nozzles. Speeding up the observation, etc.

Further, the spraying surfaces of all the spray heads are in the same plane.

In this embodiment, the liquid outlet points of the nozzles are consistent, so that the liquid observation mechanism 5 can observe the consistent liquid outlet points conveniently, the requirement for adjusting the equipment of the liquid observation mechanism 5 is reduced, and the detection precision is improved. Similarly, compared with other liquid performance tests, the beneficial effects brought by the fact that the spraying surfaces of the spray heads are located on the same plane are consistent, and are not repeated here.

Specifically, the zero setting mechanism 24 is connected to the carriage 23 to drive the sprayer to ascend and descend.

In this embodiment, the output end of the zero setting mechanism 24 is connected to the side wall of the carrier 23, the bottom of the carrier 23 is used for mounting the nozzle, the nozzle is driven to move up and down to move along the Z-axis, and at the beginning of printing, the lifting nozzle determines the initial horizontal height of the nozzle to ensure the printing quality. In addition, the spray head is lifted, so that the spray head can adapt to various printing media with different heights when printing.

Preferably, the method further comprises the following steps: and the frame body 25 is connected with the bearing frame 23, and is matched with the bearing frame 23 to form a cavity for accommodating the spray head.

In the embodiment, the carrier 23 is configured as a frame-shaped structure, and the frame body 25 is used for mounting the carrier 23 and forming a cavity with the carrier 23 to accommodate the sprayer and the wiring members; the appearance of the whole testing device is neat. The carriage 23 is mounted inside the frame body 25.

Preferably, the zero setting mechanism 24 includes: the screw 242, the screw 242 is connected with the frame body 25, and the screw 242 is rotated to lift the frame body 25.

In this embodiment, the zero setting mechanism 24 is installed at the output end of the first driving mechanism 4 of the cross beam 41, the screw rod 242 is connected to the outer side of the frame body 25, and the frame body 25 can be driven to ascend and descend by rotating the screw rod 242, so as to drive the spray head to ascend and descend.

Further, the zero setting mechanism 24 includes a force application portion 241, and the force application portion 241 is connected to one end of the screw 242 penetrating through the frame body 25.

Further, referring to fig. 16, the zero setting mechanism 24 includes: zero set motor and lead screw 242, lead screw 242 are connected with the support body 25 of installation shower nozzle, rotate lead screw 242 and make support body 25 lifting support body 25 go up and down in order to drive the shower nozzle, realize tentatively zero set. Further, the test apparatus further comprises: a liquid receiving tank 61; the liquid receiving tank 61 is correspondingly disposed below the zeroing region 500.

In this embodiment, the force application part 241 is cylindrical, so that a person can hold the force application part 241 and manually adjust the screw rod 242 to rotate by the person to adjust the height of the print head. Of course, the force application portion 241 may also be a driving motor, and the driving motor drives the screw rod 242 to rotate, so as to drive the motor and the nozzle to lift.

The upper end surface of the liquid receiving groove 61 is higher than or equal to the upper end surface of the bearing mechanism 7. The liquid in the liquid receiving tank 61 is prevented from splashing out of the printing medium carried by the carrying mechanism 7, so that the test image is prevented from being influenced, and the liquid performance test effect is prevented from being influenced.

Example two

The second embodiment is an improvement on the first embodiment, and is different from the first embodiment in that, with reference to fig. 2 and 16, the print carriage 2 includes: at least two kinds of spray heads, wherein each spray head sprays liquid towards the printing medium in sequence, and the range of the amount of the liquid sprayed by each spray head is at least partially not coincident; at least two different types of nozzles, the types of the nozzles related to the utility model are classified according to the range of the amount of ink which can be sprayed; the amount of ink ejected by the first head 21 can be in the range of 1pl to 3 pl; the second type of head 22 can eject ink in an amount ranging from 5pl to 7pl (of course, the amount of ink ejected from the head is not limited to this range). The fact that the ranges of the amounts of the sprays which can be sprayed by the spray heads are at least partially non-coincident means that three large, medium and small points of the amounts of the sprays can be the same from a large point in one kind to a small point in the other spray heads. Or may be different. In addition, in this embodiment, two different types of nozzles are preferably provided, including two types of nozzles G5I and G5, in other embodiments, multiple types of nozzles may be provided, and the number of each type of nozzle is not limited. It is noted that three different volumes of droplets may be ejected from each ejection head. And a plurality of different spray heads are arranged, so that the range of the liquid which is sprayed by the corresponding spray head in a single time in the whole test equipment can be wider.

After the current liquid spraying nozzle is located in the printing area 600 and sprays liquid to the printing medium, the first driving mechanism 4 drives the printing trolley 2 to the zero setting area 500 and zero sets the next liquid spraying nozzle to be sprayed.

In this embodiment, the utility model discloses because print dolly 2 bears the shower nozzle of different model sizes, and the liquid volume that every kind of shower nozzle sprays is inequality. Therefore, when the liquid performance under different volumes needs to be tested, the corresponding spray heads are correspondingly controlled to be opened so as to control the spray to form different-size points. Compared with the prior art, the method has the advantages that the dots with different sizes can be printed in the same test device without replacing the test device, and the same liquid can be tested in the same device without replacing the test device, so that the system errors caused by different devices are reduced, the system errors of multiple tests are reduced, and the test precision is improved. Because the utility model provides a same platform equipment can realize printing the liquid drop of multiple difference, has increased the test volume scope of liquid, has reduced the limitation. In addition, because the test equipment can spray a wider spraying range, the test equipment can be used for printing liquid drops with different volumes on different printing media by a single device, and the applicability of the test equipment for printing the liquid drops with different ranges on the printing media with different sizes is improved. Therefore, the technical problems that in the prior art, a single testing device has small testing liquid volume range and small limitation are solved. The method has the advantages of accurately testing the performance of the liquid, reducing the testing errors of various points, along with wide testing range and adaptability to various spraying scenes.

Furthermore, the utility model discloses in after current shower nozzle sprays liquid, need control next different type shower nozzle and spray liquid to when testing other hydrojet points, 2 returns of dolly are printed in the drive this moment, zero set to next shower nozzle. Because the initial zero points of different types of spray heads are different, zero is set before each type of spray head is required to be printed, and the spray of each type of spray head is ensured to be in the optimal state. Therefore, the utility model can test the performance of the liquid sprayed under different width ranges, and spray test images with different sizes to improve the measurement accuracy; in addition, the first driving mechanism 4 is arranged, zero setting is carried out before each injection, and the accuracy of liquid performance testing is further guaranteed.

In addition, the first driving mechanism 4 drives the printing trolley 2 to reciprocate, so that the printing trolley 2 is determined to correspond to the liquid observation mechanism 5 or the bearing mechanism 7 according to the performance parameters of the test liquid, and different liquid performances can be tested by using a single printing trolley 2. One less printing trolley 2 is arranged, so that the cost of the equipment is saved. On the other hand, the printing trolley 2 is provided with one printing trolley, each test is specific to the parameters of the printing trolley 2, and the system error caused by equipment is reduced, so that the accuracy of the liquid performance test is improved. Of course, in other embodiments, two print carriages 2 may be provided, corresponding to different positions.

Preferably, each spray head operates independently.

In this embodiment, the control systems of the nozzles are operated independently, but in other embodiments, a switch may be connected after the control systems, so that the specific control systems are connected to the corresponding nozzles to implement independent operation of the nozzles. Each spray head operates independently, so that the performance of the sprayed liquid in a single test corresponds to the liquid with a single volume; the situation that a plurality of spray heads spray together to print and result in confusion of test results is avoided. In addition, in other embodiments, in order to not confuse various test results, the printing condition of a single row of nozzle rows in each head may be tested at a single time. For example, the first row of nozzles corresponding to the head 1 and the first row of nozzles of the head 2 are controlled to eject ink. The images of the two are distinguished by printing on different areas of the printing medium, so that a tester can obtain the corresponding liquid performance of the liquid.

Further, the zeroing zone 500 includes: a pre-zeroing zone 500 and a final zeroing zone 500; when the printing trolley 2 is positioned in the pre-zeroing area 500, the nozzles to be sprayed in the printing trolley 2 are pre-zeroed and reset, and when the printing trolley 2 is positioned in the final zeroing area 500, the nozzles to be sprayed in the printing trolley 2 are finally zeroed and reset.

In this embodiment, the pre-zeroing includes: and controlling the lifting of the spray head to be sprayed and adjusting the relative position of the corresponding spray head Z axis. After entering the final zero setting area 500, the printing carriage 2 is stable, and finally the nozzle to be sprayed is subjected to final zero setting. Because the pre-zeroing area 500 is arranged and the pre-zeroing of the nozzle to be printed is carried out, the printing trolley 2 is enabled to be pre-zeroed within the time of the returning process, the zeroing speed is increased, and the speed for testing the performance of the liquid is convenient to increase. And a final zero-setting area 500 is also arranged, zero-setting is carried out after the trolley 2 is printed, the position of the spray head in the Z-axis direction is determined at the pre-zero-setting position, zero-setting is carried out on the liquid of the spray head in the liquid to be sprayed at the final zero-setting position, namely, zero-setting is carried out on the liquid of the spray head nozzle, and the spray head of the liquid to be sprayed can be ensured to return to the optimal state. The zero setting speed is accelerated, the zero setting effect is guaranteed, and the liquid performance testing effect is further guaranteed.

Further, the first driving mechanism 4 drives the printing carriage 2 to move from the printing zone 600 to the pre-zeroing zone 500 at a first speed, and the first driving mechanism 4 drives the printing carriage 2 to move from the pre-zeroing zone 500 to the final zeroing zone 500 at a second speed; wherein the first speed is greater than the second speed.

In this embodiment, after the first type of nozzles 21 finish ejecting liquid, the printing cart 2 is controlled to move, and at this time, the printing cart 2 is in an accelerated state; when the printing trolley 2 enters the pre-zero area 500, the printing trolley 2 starts to decelerate, and at this time, the pre-zero setting is started for the next nozzle to be printed. Further, the first driving mechanism 4 drives the printing carriage 2 to enter the final zeroing zone 500 from the pre-zeroing zone 500 in an acceleration manner; where the acceleration is negative.

Further, the test apparatus further comprises: the zero setting mechanism 24 is arranged between the first driving mechanism 4 and the printing trolley 2, and is used for setting zero of each spray head; the first drive mechanism 4 drives the print carriage 2 from the print zone 600 to the zeroing zone 500 while the zeroing mechanism 24 pre-zeroes the next print head.

The equipment is provided with the spray heads with different volumes and the liquid observation mechanism 5, so that the single equipment can realize printing related liquid performance tests and can also realize observation of the flying condition of the liquid. Because the liquid observation mechanism 5 is arranged in the test equipment, when the flying condition of the liquid during printing needs to be tested, the printing trolley 2 is started to spray the liquid only by moving the printing trolley 2 to the position above the liquid observation mechanism 5, so that the printing trolley 2 is sprayed and printed corresponding to the liquid observation mechanism 5. Compared with the prior art, the liquid observation mechanism 5 does not need to be carried, and the liquid observation mechanism 5 does not need to be installed for multiple times, so that the observation part of the liquid observation mechanism 5 is relatively fixed every time, and installation errors caused by installation are not generated, thereby ensuring that errors between two observation results are not influenced by errors of multiple times of installation, and solving the technical problem that the droplet observation results of the test equipment in the prior art have larger errors; the method has the effects of reducing observation errors and improving the observation precision of the liquid flight condition.

Further, the at least two kinds of spray heads include: a first type of head 21 and a second type of head 22; the first nozzle is positioned in the printing area 600 and sprays first liquid towards the first area 100 of the printing medium to form a first test image; the second nozzle is positioned in the printing area 600 and ejects a second liquid to form a second test image towards a second area 200 of the printing medium; the first detection image is completely misaligned with the first detection image.

In this embodiment, the first liquid is different from the second liquid; the judgment of whether the liquids are the same is based on the requirement of the test liquid for liquid drops. The performance of the liquid as A requires the ejection amount to be 7 pl; but the ejection volume demand of the B liquid was 2.5 pl; generally, different kinds of liquid, gloss oil, white ink, color ink, and coating require different ejection amounts. The two liquids are defined as different liquids. Of course, in other embodiments, the first liquid and the second liquid may be the same liquid. The first area 100 and the second area 200 may be partially overlapped or partially misaligned, and the first test image and the second test image are completely misaligned, which means that the first test image and the second test image may exist independently, so that mutual interference between the first test image and the second test image is avoided, and thus the test images are easily identified, and the test accuracy of the liquid performance is improved.

In this embodiment, the carriage 2 is moved stepwise on the cross-beam 41 in a first direction at a speed of V1, and the second drive mechanism 3 is used to drive the print medium at V₂And the printing carriage 2 reciprocates. Wherein V₂Greater than V₁. Because the printing medium is driven to move at a higher speed, when the printing needs to be stopped, the quality of the printing medium is much smaller than that of the printing trolley 2, so that compared with the prior art, the printing medium stopping control is more convenient, the printing program is convenient to control, and the printing quality is favorably ensured. The technical problems that the printing trolley 2 is difficult to control to stop and even the printing quality is poor due to the fact that the printing trolley 2 is high in mass in the existing printing device are solved; on the other hand, the utility model only drives the printing trolley 2 to do stepping movement, does not need overlarge power to drive the printing trolley 2 to move at high speed, is easy to control the printing trolley 2 to stop, reduces the energy consumption for driving the printing trolley 2, and realizes the energy-saving effect; the printing machine has the advantages of convenience in control, high-precision printing, energy conservation and the like.

EXAMPLE III

The third embodiment is an improvement of the first or second embodiment, and specifically differs from the first or second embodiment in that, as shown in fig. 17, the liquid observing mechanism 5 is disposed above the carriage mechanism 7, a holder (not shown) is provided to support the liquid observing mechanism 5, the liquid observing mechanism is provided with a leakage portion 56, and the printing medium is disposed below the leakage portion 56. The liquid sprayed by the spray head enters the observation part and then falls on the printing medium, and the acquisition part of the liquid observation instrument acquires the liquid spraying condition in the area; after entering the observation part, the liquid sprayed by the spray head is observed by the liquid observer and directly falls on the printing medium to form a test image on the printing medium; on one hand, the structure of the whole device is more compact, and on the other hand, the liquid sprayed by the spray head can be observed by the liquid drop observation mechanism and printed on the printing medium at the same time; the liquid sprayed at one time can meet the requirement of being observed and can be tested for other liquid performances.

Second embodiment

A second embodiment provides a method for controlling a liquid performance testing apparatus with a printing function, as shown in fig. 18, and is applied to the testing apparatus according to any one of the first embodiment, where the method includes:

s1, controlling the spray head of the printing trolley to correspond to the acquisition part, and controlling the spray surface of the spray head to be positioned in the acquisition range of the acquisition part;

s2, controlling a nozzle of the spray head to spray liquid under a preset waveform, and simultaneously controlling the acquisition part to shoot;

and S3, before the liquid sprayed by the nozzle leaves the collection range of the collection part, controlling the collection part to shoot the liquid drop image once at preset time intervals.

Since the present embodiment employs the above test apparatus and provides a control method, the present embodiment has all the advantages of the above test apparatus. The liquid observation mechanism is arranged in the test equipment, when the flying condition of the liquid during printing needs to be tested, the printing trolley is only required to be moved to the position above the liquid observation mechanism, and the printing trolley is started to spray the liquid, so that the printing trolley is enabled to spray and print corresponding to the liquid observation mechanism. Compared with the prior art, the liquid observation mechanism does not need to be carried, and the liquid observation mechanism does not need to be installed for multiple times, so that the observation part of the liquid observation mechanism is relatively fixed every time, and the installation error caused by installation is not generated, thereby ensuring that the error between two observation results is not influenced by the error of multiple times of installation, and solving the technical problem that the droplet observation result of the test equipment in the prior art has larger error; the method has the effects of reducing observation errors and improving the observation precision of the liquid flight condition. In addition, when the printing trolley ejects liquid towards a printing medium, the testing equipment can have printing performance, so that one piece of equipment has multiple functions and can meet the requirements of producing and testing the liquid at the same time.

The method further comprises the following steps: controlling the collection part to collect the liquid drop image and controlling the printing trolley to move to the printing area before or after the liquid drop image is collected;

and after the printing trolley is positioned in the printing area, the spray head is controlled to spray liquid towards the printing medium to form a test image.

The method further comprises the following steps: and after the control acquisition part acquires a liquid drop image or the spray head sprays liquid towards the printing medium to form a test image, the control acquisition part controls the printing trolley to move to the zero setting area so as to zero the spray head.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting 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 liquid performance testing apparatus with a printing function, the apparatus comprising:

a cross beam;

the liquid observation mechanism is positioned below the cross beam;

the printing trolley is arranged on the cross beam and is provided with a spray head used for spraying liquid towards a printing medium or the liquid observation mechanism;

the liquid observing mechanism includes: the acquisition part is used for acquiring liquid drop images jetted by the nozzles of the plurality of nozzles within preset time; the collection range of the collection part at least covers the spray surface of the nozzle.

2. The liquid performance test apparatus with print function according to claim 1, wherein the direction of the nozzle row of the head is perpendicular to the collecting direction of the collecting section.

3. A liquid performance testing apparatus with printing functionality according to claim 1, wherein said testing apparatus further comprises a first drive mechanism; the printing medium is positioned below the cross beam and on one side of the liquid observation mechanism, and the first driving mechanism is used for driving the printing trolley to reciprocate on the printing medium and the liquid observation mechanism.

4. The liquid performance testing apparatus with printing function according to claim 3, wherein the liquid observing mechanism includes an observing space for the printing cart to pass through, and the observing space has openings on two opposite sides, and one of the openings is located on one side of the observing mechanism near the printing medium; the nozzle ejects liquid in the observation space so that the acquisition part acquires a liquid drop image.

5. A liquid performance testing apparatus with printing functionality according to claim 4, wherein said testing apparatus further comprises: the bearing mechanism is used for bearing a printing medium; the bottom of the observation space is lower than or flush with the upper end surface of the printing medium carried by the carrying mechanism.

6. The liquid performance test apparatus with printing function according to claim 5, wherein a collection range of the collection portion covers a height from an upper end face of the carrying mechanism to an ejection face of the ejection head ejecting the liquid.

7. The liquid performance test apparatus with printing function according to claim 4, wherein the liquid observing mechanism further includes a cover body that covers the observing space.

8. The liquid performance testing device with the printing function according to any one of claims 4 to 7, further comprising a waste liquid collecting mechanism and a working platform, wherein the waste liquid collecting mechanism is slidably disposed on the working platform and located below the liquid observing mechanism, and is used for receiving the liquid ejected by the printing trolley.

9. The liquid performance test apparatus with printing function according to claim 8, wherein the liquid observing mechanism is provided with a leaking portion which communicates with the observing space, and the liquid ejected from the ejection head enters the waste liquid collecting mechanism from the leaking portion.

10. The liquid performance test apparatus with print function according to any one of claims 1 to 7, wherein the liquid observing mechanism further comprises: and the adjusting component is used for adjusting the relative position of the acquisition part and the printing trolley so as to enable the spraying surface of the spray head to be within the acquisition range of the acquisition part.

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