CN216969070U - Printing mechanism and ink-jet printing equipment - Google Patents

Abstract

This application is applicable to ink jet printer technical field, provides a printing mechanism and ink jet printing equipment, and printing mechanism is including installation gallows, a plurality of actuating mechanism and a plurality of unit of printing, respectively print the unit respectively slide assembly in the bottom of installation gallows, it is a plurality of the unit of printing sets up, and is a plurality of along pitch arc interval distribution actuating mechanism and a plurality of the transmission of printing unit one-to-one is connected, actuating mechanism is used for driving and corresponds the unit of printing is followed pitch arc place planar normal direction removes. Because each printing unit can independently move, a certain printing unit can be drawn out for a certain distance so as to be separated from other printing units, thereby facilitating maintenance.

Description

Printing mechanism and ink-jet printing equipment

Technical Field

The present application relates to the field of inkjet printer technology, and more particularly, to a printing mechanism and an inkjet printing apparatus.

Background

Currently, a printing mechanism of an inkjet printer is composed of a plurality of printing units, each of which is provided with a plurality of inkjet heads, and printing is performed by ejecting ink from the inkjet heads. Because the printing mechanism is of an integral structure and comprises more printing units, the printing mechanism is heavier as a whole, and the operation difficulty is higher when the maintenance of one or some ink jet heads is carried out.

In summary, how to improve the convenience of the maintenance of the inkjet head is a technical problem that needs to be solved by those in the art.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a printing mechanism and inkjet printing equipment, aims at solving the technical problem who how to improve the maintenance degree of convenience of ink gun among the prior art.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: there is provided a printing mechanism including: the printing device comprises an installation hanging bracket, a plurality of driving mechanisms and a plurality of printing units, wherein each printing unit is respectively assembled at the bottom of the installation hanging bracket in a sliding mode, the plurality of printing units are arranged along an arc line at intervals, the plurality of driving mechanisms are in one-to-one transmission connection with the plurality of printing units, and the driving mechanisms are used for driving the corresponding printing units to move along the normal direction of the plane where the arc line is located.

In one possible design, the mounting hanger is provided with a first sliding portion, the top of each printing unit is provided with a second sliding portion, and the first sliding portion and the second sliding portion are mounted in a sliding fit manner.

In a possible design, one of the first sliding part and the second sliding part is a sliding groove, and the other one is a sliding block, and the sliding block is slidably assembled in the sliding groove.

In a possible design, two sets of the second sliding portions are arranged at intervals on the top of each printing unit, each set of the second sliding portions at least includes one second sliding portion, each set of the second sliding portions is respectively and correspondingly provided with one first sliding portion, and all the second sliding portions in each set of the second sliding portions are correspondingly and slidably assembled in one first sliding portion.

In one possible design, each driving mechanism includes a driver and a transmission assembly, and the driver drives the corresponding printing unit to move along a straight line through the transmission assembly.

In a possible design, the transmission assembly comprises a lead screw and a connecting piece, a threaded hole is formed in the connecting piece, the connecting piece is in threaded fit connection with the lead screw, the connecting piece is connected with the corresponding printing unit, the lead screw is in transmission connection with the driver, and the driver is used for driving the lead screw to rotate.

In a possible design, the driver is a motor, the transmission assembly further comprises a synchronous belt, and the lead screw is connected with the output shaft of the motor through the synchronous belt.

In one possible design, the connecting member includes a nut screw-engaged with the lead screw, and a connecting plate having one end connected to a bottom of the nut and the other end connected to a side of the printing unit.

In one possible design, the mounting hanger is provided with a plurality of limiting members, and the limiting members are respectively arranged between two adjacent printing units.

The application still provides an ink jet printing equipment, including the printing roller and as above arbitrary technical scheme printing mechanism, printing mechanism install in the top of printing roller is a plurality of the printing unit sets up along pitch arc interval distribution, actuating mechanism among the printing mechanism is used for driving the printing unit edge that corresponds the axis direction of printing roller removes.

The application provides a printing mechanism's beneficial effect lies in: compared with the prior art, the printing mechanism of this application, because actuating mechanism is connected with the printing unit one-to-one, consequently make different printing units by different actuating mechanism independent control, consequently each printing unit independently removes, also in the maintenance process, can remove certain distance through the printing unit at the ink gun place that actuating mechanism will treat the maintenance, so that this printing unit's at least partial structure and other printing unit separation, thereby provide bigger maintenance space, be convenient for carry out the maintenance of ink gun and maintain. The driving mechanism realizes the movement of the printing unit, thereby saving more labor.

In conclusion, the driving mechanism is used for driving the printing units to move independently, so that the convenience of maintenance of the ink jet heads in the printing units is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is an oblique top perspective view of a printing mechanism in a first state provided by one embodiment of the present application;

FIG. 2 is an oblique top perspective view of a printing mechanism in a second state provided by one embodiment of the present application;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a first schematic diagram of a relative position relationship between a printing mechanism and a printing roller according to an embodiment of the present application;

FIG. 5 is a second schematic diagram illustrating a relative position relationship between a printing mechanism and a printing roller according to an embodiment of the present application;

FIG. 6 is a front view of a print mechanism provided by one embodiment of the present application in a first state;

FIG. 7 is a partial enlarged view at B in FIG. 6;

FIG. 8 is a top view of a print mechanism provided by one embodiment of the present application in a first state;

FIG. 9 is a top view of a print mechanism provided by one embodiment of the present application in a second state;

FIG. 10 is a schematic perspective view of a drive mechanism provided by an embodiment of the present application;

FIG. 11 is a front view of a drive mechanism provided by one embodiment of the present application;

FIG. 12 is a cross-sectional view taken along line C-C of FIG. 11;

FIG. 13 is an enlarged view of a portion of FIG. 12 at D;

FIG. 14 is an angled elevation perspective view of a printing mechanism provided by one embodiment of the present application in a second state;

fig. 15 is a partial enlarged view at E in fig. 14;

fig. 16 is a partial enlarged view at F in fig. 14.

Reference numerals referred to in the above figures are detailed below:

10. mounting a hanging bracket; 11. a side frame; 12. an end plate; 13. lifting lugs; 14. a cross beam; 15. a limiting member;

20. a drive mechanism; 21. a driver; 22. a lead screw; 23. a nut; 24. a connecting plate; 25. a bearing; 26. a synchronous belt; 27. a synchronizing wheel;

31. a chute; 32. a slider; 33. a trough body;

40. a printing unit; 41. an ink jet head;

50. a printing roller.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the referenced mechanism or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In order to explain the technical solutions of the present application, the following detailed descriptions are made with reference to specific drawings and examples.

As shown in fig. 1 to 5, one embodiment of the present application provides a printing mechanism including: the mounting hanger 10, the plurality of driving mechanisms 20, and the plurality of printing units 40, each printing unit 40 including a plurality of inkjet heads 41, respectively. Each printing unit 40 is assembled in the bottom of installation gallows 10 in the sliding respectively, and a plurality of printing units 40 set up along pitch arc interval distribution, and a plurality of actuating mechanism 20 are connected with a plurality of printing unit 40 one-to-one correspondence transmission, and actuating mechanism 20 is used for driving the planar normal direction removal along pitch arc place of corresponding printing unit 40.

The mounting hanger 10 can move all the printing units 40 synchronously, for example, the distance between each printing unit 40 and the printing medium can be changed by lifting the mounting hanger 10. As shown in fig. 4 and 5, in an ink jet printer, a printing medium is moved by a printing roller 50, and a printing mechanism is disposed opposite to the printing roller 50. Since the plurality of printing units 40 are distributed along an arc-shaped track, the matching degree of the printing mechanism and the printing roller 50 is higher, and the consistency of the distance between each ink-jet head 41 and the printing medium is higher. Specifically, the plurality of printing units 40 are distributed along a circular arc trajectory.

In fig. 4, the distance between each printing unit 40 and the printing roller 50 is relatively large, and the mounting hanger 10 is lowered by a certain distance by moving the mounting hanger 10, so that the distance between all the printing units 40 and the printing roller 50 can be reduced as shown in fig. 5, thereby facilitating the printing operation.

In order to facilitate the movement of the mounting hanger 10, a plurality of lifting lugs 13 are provided at the side of the mounting hanger 10, and as shown in fig. 1, 6 and 8, the number of lifting lugs 13 mounted thereon may be selected according to the weight and size of the mounting hanger 10. For example, in fig. 8, the number of the lifting lugs 13 is four, and two lifting lugs 13 are provided on opposite sides of the mounting hanger 10.

As shown in fig. 1, optionally, the lifting lug 13 includes a vertical plate, a horizontal plate and a reinforcing plate, the vertical plate is connected to a side surface of the mounting hanger 10, the horizontal plate is vertically connected to the vertical plate, and the reinforcing plate is disposed at each of two ends of an L-shaped or T-shaped structure formed by connecting the horizontal plate and the vertical plate. The transverse plate is provided with a mounting column, a mounting hole penetrates through the mounting column, and the mounting hole is used for mounting a fixing piece so as to connect the lifting lug 13 with other structures through the fixing piece. The mounting hole can be a through hole or a threaded hole, and can be selected according to the structure and the mounting position of the fixing piece.

As shown in fig. 1, the mounting hanger 10 is a frame structure including two oppositely disposed side frames 11 and two oppositely disposed end plates 12, one end plate 12 having both ends connected to one ends of the two side frames 11, respectively, and the other end plate 12 connected to the other ends of the two side frames 11, respectively. The side frame 11 is composed of beam bodies connected in a transverse and vertical manner. Two end plates 12 are arranged at intervals along a first direction, the bottom surfaces of the end plates 12 are cambered surfaces, the driving mechanism 20 is installed on the end plates 12, each printing unit 40 is assembled below the end plates 12 in a sliding mode, in order to provide a larger installation area, a cross beam 14 can be connected between the bottom surfaces of the two end plates 12, and the printing units 40 are installed on the cross beam 14. Specifically, the number of beams 14 is the same as the number of printing units 40, and one printing unit 40 is correspondingly installed below one beam 14.

As shown in fig. 4 and 5, the plurality of printing units 40 are distributed along an arc-shaped trajectory in a plane parallel to the paper in the direction shown, and in a plane perpendicular to the axis of the printing cylinder 50. The driving mechanism 20 moves the printing unit 40 in a direction perpendicular to the paper surface, or in the axial direction of the printing roller 50. The printing unit 40 can be moved either forward or backward. With this arrangement, some printing units 40 can be moved forward and some printing units 40 can be moved backward in the printing mechanism, so that two printing units 40 can be moved out simultaneously, and maintenance operations can be performed on both the front and rear sides of the printing mechanism.

In one possible design, the mounting hanger 10 is provided with a first sliding part, and the top of each printing unit 40 is provided with a second sliding part, and the first sliding part and the second sliding part are mounted in a sliding fit manner. So set up, the cooperation of first sliding part and second sliding part has played limiting displacement to printing unit 40 on the one hand, and on the other hand has played the guide effect to printing unit 40.

For example, the first sliding portion may be a round bar, and the second guiding portion may be a through hole. That is, the printing unit 40 is fitted on the round bar through the through hole and can move along the round bar.

In one possible design, one of the first sliding part and the second sliding part is a sliding groove 31, the other one is a sliding block 32, and the sliding block 32 is slidably assembled in the sliding groove 31. Specifically, the slide groove 31 may be provided at the bottom of the mounting hanger 10, and the slider 32 may be provided at the top of the printing unit 40, or the slide groove 31 may be provided at the top of the printing unit 40, and the slider 32 may be provided at the bottom of the mounting hanger 10.

As shown in fig. 2, 3, 14-16, in a possible design, the first sliding portion is a sliding block 32, the second sliding portion is a sliding slot 31, the sliding slot 31 is disposed through along a normal direction of a plane where an arc line is located, the sliding block 32 is engaged with the sliding slot 31, and the sliding block 32 and the sliding slot 31 are installed in a sliding fit manner. That is, the slider 32 is provided at the bottom of the mounting hanger 10, the slide groove 31 is provided at the top of the printing unit 40, and the slider 32 is mounted in sliding engagement with the slide groove 31.

Alternatively, as shown in fig. 16, the slider 32 may be provided at the bottom of the cross member 14.

In a possible design, two sets of second sliding portions are arranged at intervals on the top of each printing unit 40, each set of second sliding portions at least includes one second sliding portion, each set of second sliding portions is respectively and correspondingly provided with one first sliding portion, and all the second sliding portions in each set of second sliding portions are correspondingly and slidably assembled in one first sliding portion.

For example, as shown in fig. 2, 3, 14-16, two sets of sliding chutes 31 are provided at intervals on the top of each printing unit 40, each set of sliding chutes 31 includes a plurality of sliding chutes 31, the sliding chutes 31 in the same set are provided at intervals on the top of the printing unit 40 along a first direction, that is, the length directions of the sliding chutes 31 in the same set are on the same extension line, and the extension lines of the two sets of sliding chutes 31 are arranged in parallel. So set up, through two sets of spout 31 respectively with two slide rail sliding fit on the installation gallows 10, improve the stability of printing unit 40 in the removal process.

Specifically, as shown in fig. 3, a groove 33 protruding upward is provided at the top of the printing unit 40, a sliding groove 31 is provided in the groove 33 in a penetrating manner along the first direction, and during the installation process, a side opening of the sliding groove 31 corresponds to the slider 32, so that the slider 32 can be inserted into the sliding groove 31 from the side of the sliding groove 31, so that the slider 32 is engaged with the sliding groove 31 in the up-down direction and can move relatively in the transverse first direction.

The driving mechanism 20 is used for driving the printing unit 40 opposite to the driving mechanism to move along a straight line, the driving unit includes a driver 21, the driver 21 can be hydraulically driven, pneumatic or electric, for example, the driver 21 is a hydraulic cylinder, a moving direction of a cylinder rod of the hydraulic cylinder is a first direction, a cylinder body of the hydraulic cylinder is fixedly arranged, and the cylinder rod is connected with the corresponding printing unit 40 to drive the printing unit 40 to move along the first direction.

In the present embodiment, the driver 21 is a motor, and optionally, each driving mechanism 20 includes a driver 21 and a transmission assembly, and the driver 21 drives the corresponding printing unit 40 to move along a straight line through the transmission assembly. The transmission assembly is used for converting the rotary motion of the output shaft of the motor into linear motion along a first direction.

The transmission assembly can be a combination of a synchronous wheel and a synchronous belt, a ball screw assembly, or a combination of a gear and a rack.

In the present embodiment, a ball screw assembly is taken as an example for description, the ball screw assembly includes a screw 22 and a connecting member, a threaded hole is provided on the connecting member, the connecting member is connected with the screw 22 in a threaded fit manner, the connecting member is connected with a corresponding printing unit 40, the screw 22 is in transmission connection with a driver 21, and the driver 21 is used for driving the screw 22 to rotate.

As shown in fig. 10 to 12, the connecting member includes a nut 23 and a connecting plate 24, the nut 23 is screw-fitted to the lead screw 22, and one end of the connecting plate 24 is connected to the bottom of the nut 23 and the other end is connected to the side of the printing unit 40. For example, the connecting plate 24 is an L-shaped structure, and includes a horizontal plate and a vertical plate which are vertically connected, the horizontal plate is connected to the bottom of the nut 23, and the vertical plate is connected to the side of the printing unit 40.

In particular, the driver 21 is a motor, and in a possible embodiment, an output shaft of the motor may be connected to an end of the lead screw 22, and the connection may be a coupling connection, so as to directly drive the lead screw 22 to rotate through the output shaft of the motor.

Alternatively, as shown in fig. 6 and 10, in another possible embodiment, the lead screw 22 is driven to rotate by the synchronous belt 16, the output shaft of the driver 21 is sleeved with a synchronous wheel 27, one end of the lead screw 22 is sleeved with the synchronous wheel 27, and the two synchronous wheels 27 are in transmission connection through the synchronous belt 16. So configured, by varying the ratio of the diameters of the two synchronizing wheels 27, the transmission ratio between the driver 21 and the threaded spindle 22 can be varied. And this kind of arrangement for the output shaft of driver 21 need not to set up with lead screw 22 is coaxial, saves installation space. As shown in fig. 6 and 7, the driver 21 is mounted above the lead screw 22.

Alternatively, a first gear may be provided on the output shaft of the driver 21, a second gear may be sleeved on the lead screw 22, and the first gear and the second gear are engaged, so as to drivingly connect the driver 21 and the lead screw 22.

As shown in fig. 12 and 13, in order to improve the mounting stability of the lead screw 22 on the mounting hanger 10, bearings 25 are respectively sleeved at two ends of the lead screw 22, and the lead screw 22 is rotatably connected with the mounting hanger 10 through the bearings 25.

As shown in fig. 1, 2, 8 and 9, in one possible design, the mounting hanger 10 is provided with a plurality of stoppers 15, and the stoppers 15 are respectively provided between two adjacent printing units 40. So set up for all be provided with locating part 15 in each printing unit 40's both sides, the locating part 15 of both sides all extends along the first direction, carries on spacingly to printing unit 40 in both sides, in order to improve the stability that printing unit 40 removed the in-process along the first direction.

As shown in fig. 4 and fig. 5, the present embodiment further provides an inkjet printing apparatus, which includes a printing roller 50 and a printing mechanism according to any of the above technical solutions, the printing mechanism is installed above the printing roller 50, and a driving mechanism 20 in the printing mechanism is used for driving a corresponding printing unit 40 to move along an axial direction of the printing roller 50. The printing mechanism can be raised or lowered to adjust the distance from the print cylinder 50.

The above description is intended only to serve as an alternative embodiment of the present application, and should not be taken as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the scope of the present application.

Claims (10)

1. A printing mechanism, comprising: the printing device comprises an installation hanging bracket, a plurality of driving mechanisms and a plurality of printing units, wherein each printing unit is respectively assembled at the bottom of the installation hanging bracket in a sliding mode, the plurality of printing units are arranged along an arc line at intervals, the plurality of driving mechanisms are in one-to-one transmission connection with the plurality of printing units, and the driving mechanisms are used for driving the corresponding printing units to move along the normal direction of the plane where the arc line is located.

2. The printing mechanism of claim 1, wherein the mounting cradle is provided with a first sliding portion, and the top of each printing unit is provided with a second sliding portion, the first sliding portion being mounted in sliding engagement with the second sliding portion.

3. The printing mechanism of claim 2, wherein one of the first sliding portion and the second sliding portion is a slide slot and the other is a slider, the slider being slidably fitted in the slide slot.

4. The printing mechanism according to claim 2, wherein two sets of the second sliding portions are spaced apart from each other at the top of each printing unit, each set of the second sliding portions includes at least one of the second sliding portions, each set of the second sliding portions has one of the first sliding portions, and all the second sliding portions in each set of the second sliding portions are slidably assembled to one of the first sliding portions.

5. A printing mechanism as claimed in any of claims 1 to 4, wherein each drive mechanism comprises a drive and a drive assembly, the drive driving the respective printing unit in a linear motion via the drive assembly.

6. The printing mechanism as claimed in claim 5, wherein the driving assembly includes a lead screw and a connector, the connector has a threaded hole, the connector is connected to the lead screw in a threaded manner, the connector is connected to the corresponding printing unit, the lead screw is connected to the driver in a driving manner, and the driver is configured to drive the lead screw to rotate.

7. The printing mechanism of claim 6, wherein the driver is a motor, and the transmission assembly further comprises a timing belt, and the lead screw is in transmission connection with an output shaft of the motor through the timing belt.

8. The printing mechanism of claim 6, wherein the coupling member includes a nut that is threadably engaged with the lead screw and a connecting plate that is attached at one end to a bottom of the nut and at another end to a side of the printing unit.

9. The printing mechanism of any of claims 1-4, wherein the mounting cradle is provided with a plurality of stops, one stop being provided between each adjacent printing unit.

10. An ink jet printing apparatus comprising a printing roller and a printing mechanism according to any one of claims 1 to 9, wherein the printing mechanism is mounted above the printing roller, a plurality of the printing units are arranged at intervals along an arc, and a driving mechanism in the printing mechanism is used for driving the corresponding printing unit to move along the axial direction of the printing roller.

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