CN219171975U - Printing unit mounting structure and printer - Google Patents

Abstract

The application provides a print unit mounting structure and printer, is in including fixed frame and setting a plurality of mutually independent elevating gear on the fixed frame, a plurality of mutually independent elevating gear are used for one-to-one to connect independent print unit and drive print unit goes up and down. The printing unit mounting structure provided by the application avoids the situation that the printing unit which does not work is separated from maintenance on one hand, and reduces the risk that the spray head is scratched by printing materials on the other hand because the time that the printing unit is positioned at a printing position is shortened. The printer that this application provided has adopted the independent mode that goes up and down of a plurality of printing units, can maintain the service condition and the life-span of shower nozzle better to the risk that the shower nozzle damaged has been reduced, thereby reduced the operation, the use cost of machine. The working state and the non-working state of each printing unit are completely independent, and the working state of any printing unit can be determined according to production requirements.

Description

Printing unit mounting structure and printer

Technical Field

The application belongs to the technical field of printing equipment, and more particularly relates to a printing unit mounting structure and a printer.

Background

A printer is one of the output devices of a computer for printing the results of computer processing on a related medium. The basic working structure of a conventional single-channel digital printer is shown in fig. 1, in which a printing material conveying system 6 moves unidirectionally with a printing material 9, and the printing unit 3 moves under the printing unit 3 through a channel fixing frame/lifting system to lower the printing unit 3 from a moisturizing position to a printing position where a set printing gap is maintained with the surface of the printing material 9. At this time, the working state of each printing unit 9 is controlled by the printing control system of the printer, so as to obtain a digital printing finished product.

The printing unit is provided with a digital printing head, and the digital printing head is a core component and a valuable component of the whole digital printer and accounts for more than half of the machine cost. When the digital spray head does not work, the digital spray head needs to be maintained under specific conditions, otherwise, the working state is easily degraded or even damaged. As can be seen from fig. 1, the conventional mounting mechanism 5 is integral, and the plurality of printing units 3 are lifted and lowered integrally during operation. However, when printing is performed, the number of printing units required is different due to different products produced, and this solution can lead to that when all the printing units are not required to be operated, the non-operating printing units are also out of the maintenance state, which affects the use of the digital printing head. Moreover, since the printing gap is very small (0.5 mm-3 mm), the printing material is likely to bend and deform, the phenomenon of scratching the digital printing head is likely to occur, and the risk of damaging the non-working digital printing head is increased when all printing units are lifted synchronously.

Accordingly, there is a need for improvements to existing print unit mounting structures to reduce the risk of damage to the digital printheads.

Disclosure of Invention

In order to achieve the above purpose, the technical scheme adopted in the application is as follows: in one aspect, the application provides a printing unit mounting structure, including fixed frame and setting a plurality of mutually independent elevating gear on the fixed frame, a plurality of mutually independent elevating gear are used for one-to-one connection independent printing unit and drive printing unit goes up and down.

Optionally, the lifting device comprises a driver and a hanger frame, wherein the driver is connected with a lifting mechanism for driving the hanger frame to lift, and the hanger frame is used for being connected with the printing unit.

Optionally, the both ends fixedly connected with slip subassembly of gallows frame, slip subassembly with fixed frame sliding connection, elevating system with slip subassembly is connected.

Optionally, the slip subassembly include the slip bedplate and with slip bedplate fixed connection's draw runner, be provided with the slide rail on the fixed frame, the slide rail with draw runner sliding connection, the slip bedplate with elevating system connects.

Optionally, a position sensor for detecting the position of the printing unit is arranged on the fixed frame, the position sensor is connected with a controller, and the controller is connected with the driver; and/or, be provided with the position detection inductor on the fixed frame, be provided with the response piece on the slip bedplate, the position detection inductor be used for detecting its with the distance between the response piece, the position detection inductor is connected with the controller, the controller with the driver is connected.

Optionally, the elevating system includes gear box, screw rod and sliding seat link plate, the input shaft of gear box with the driver is connected, the output shaft of gear box with the screw rod is connected, the sliding seat link plate with sliding component fixed connection, the sliding seat link plate with screw rod threaded connection.

Optionally, the number of the lifting mechanism and the number of the sliding components are two, the lifting mechanism and the sliding components are respectively arranged at two ends of the hanger frame, and a synchronous mechanism for enabling the two lifting mechanisms to synchronously move is connected between the two lifting mechanisms.

Optionally, the synchronizing mechanism includes a synchronizing rod, and gearboxes in the two lifting mechanisms are connected through the synchronizing rod, wherein one gearbox is connected with the driver.

Optionally, the device further comprises a connecting beam, wherein the connecting beam is fixedly connected with the fixed frame, one or more supporting pieces are arranged on the connecting beam, and the supporting pieces are rotationally connected with the synchronizing rod.

The application also provides a printer which comprises the printing unit mounting structure and a plurality of printing units which are mounted on the lifting device in a one-to-one correspondence manner.

The beneficial effect of printing unit mounting structure that this application provided lies in: compared with the prior art, the application sets up a plurality of mutually independent elevating gear to make every elevating gear be used for connecting the printing unit alone, so that a plurality of printing units can independently go on going up and down. When printing is performed, the corresponding lifting device can be controlled to descend the printing unit needing to work to the printing position for printing, and the printing unit which does not work is kept at the moisture-keeping position for maintenance. On the one hand, the situation that the inoperative printing unit is separated from maintenance is avoided, and on the other hand, the time that the printing unit is in the printing position is shortened, so that the risk that the spray head is scratched by printing materials is reduced.

The beneficial effect of the printer that this application provided lies in: compared with the prior art, the printing units can be independently lifted, so that the inoperative spray heads are maintained at the moisturizing positions, the service states and the service lives of the spray heads can be better maintained, the risk of damage to the spray heads is reduced, and the running and using costs of the machine are reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a conventional printing unit mounting structure;

fig. 2 is a schematic structural view of a printing unit mounting structure provided in an embodiment of the present application;

fig. 3 is a schematic perspective view of a print unit mounting structure according to an embodiment of the present disclosure; the figure shows a case where only one printing unit is installed;

fig. 4 is a schematic structural diagram of a lifting device according to an embodiment of the present application;

FIG. 5 is an enlarged view of portion A of FIG. 3 of the present application;

fig. 6 is an enlarged view of part B of fig. 4 of the present application;

wherein, each reference sign in the figure:

1-fixed frame, 2-elevating gear, 3-printing unit, 4-base, 5-former mounting structure, 6-printing material conveying system, 7-moisturizing position, 8-printing position, 9-printing material, 101-position detection sensor, 102-sensor mount, 103-inductive switch, 201-sliding seat board, 202-sliding seat link plate, 203-screw, 204-driver, 205-hanger frame, 206-slide bar, 207-slide rail, 208-elevating seat board, 209-adjusting plate, 210-first gear box, 211-connecting beam, 212-support, 213-synchronizing bar, 214-second gear box, 215-inductive block, 216-coupling.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, 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 for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" 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 is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

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

Fig. 1 illustrates a schematic diagram of a printing unit mounting structure in the related art, in which an arrow direction is a moving direction, a solid line indicates that the printing unit is in a moisturizing state, and a broken line indicates that the printing unit is in an operating state. Referring to fig. 1, the conventional mounting structure 5 is a whole and includes a lifting device and a frame for mounting the lifting device, a plurality of printing units 3 are mounted on the lifting device, and the plurality of printing units 3 are driven by the lifting device to perform a whole lifting motion. When printing, the printing material conveying system 6 conveys the printing material 9 to the lower part of the printing units 3, the original mounting structure 5 drives all the printing units 3 to descend from the moisturizing position 7 to the printing position 8, and after printing is finished, the lifting device drives all the printing units 3 to move from the printing position 8 to the moisturizing position 7 for maintenance. As can be seen from this process, since not all printing units 3 are in operation, the non-operating printing units 3 reduce maintenance time and increase the risk of damage.

Referring to fig. 2 to 6 together, a description will be given of a printing unit mounting structure according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a printing unit mounting structure provided in an embodiment of the present application, as shown in fig. 2, the printing unit mounting structure includes a fixed frame 1 and a plurality of mutually independent lifting devices 2 disposed on the fixed frame 1, where the plurality of mutually independent lifting devices 2 are used for connecting independent printing units 3 in a one-to-one correspondence manner and driving the printing units 3 to lift. The fixed frame 1 is fixedly arranged on the base 4. The application is used for being connected with printing unit through setting up a plurality of mutually independent elevating gear 2 for a plurality of printing units can independently go on going up and down. When the production is carried out, all the printing units 3 are not required to work, the lifting device 2 corresponding to the working printing unit is only required to act, the printing unit is separated from the moisturizing position and enters the working position, and other printing units 3 still keep the moisturizing position. On the one hand, the situation that the inoperative printing unit is out of service is avoided, and on the other hand, the risk of the nozzle being scratched by the printing material 9 is reduced.

As shown in fig. 1, in the present embodiment, the number of the lifting devices 2 is six, and in fig. 1, the first, third and fifth printing units 3 from left to right are in the moisturizing position 7, and the second, fourth and sixth printing units 3 are in the printing position 8, and besides, the plurality of printing units 3 also have other random printing combinations, for example: any one, two, three … or a combination of all the printing units 3 of the one to six printing units 3 are operated, while the other remaining printing units 3 are not operated. In other embodiments of the present application, the number of the elevating devices 2 may be four, eight, or the like, but is not limited thereto.

Fig. 4 is a schematic structural diagram of a lifting device provided in an embodiment of the present application, as shown in fig. 4, in some embodiments of the present application, the lifting device 2 includes a driver 204 and a hanger frame 205, where the driver 204 is connected with a lifting mechanism for driving the hanger frame 205 to lift, and the hanger frame 205 is used to connect with the printing unit 3. The driver 204 is used for driving the lifting mechanism to perform lifting movement, and the lifting mechanism drives the printing unit 3 to lift through the hanger frame 205, so that the switching between the working state and the maintenance state is completed.

As shown in fig. 3 and 4, in some embodiments of the present application, the two ends of the hanger frame 205 are fixedly connected with a sliding assembly, the sliding assembly is slidably connected with the fixed frame 1, and the lifting mechanism is connected with the sliding assembly. By the sliding assembly, the hanger frame 205 can only slide along the vertical direction of the hanger frame 205, and the lateral offset of the printing unit 3 is limited, so that the printing precision of the printing unit 3 is ensured.

As shown in fig. 4, in some embodiments of the present application, the sliding assembly includes a sliding seat 201 and a sliding strip 206 fixedly connected to the sliding seat 201, a sliding rail 207 is disposed on the fixed frame 1, the sliding rail 207 is slidably connected to the sliding strip 206, and the sliding seat 201 is connected to the lifting mechanism and the hanger frame 205. When the lifting mechanism drives the sliding seat plate 201 to slide, the sliding strip 206 slides in the sliding rail 207 to transversely limit the sliding seat plate 201, and meanwhile, the sliding seat plate 201 drives the hanger frame 205 connected with the sliding seat plate to lift, so that the printing unit 3 is driven to lift. In this embodiment, the number of the sliding strips 206 is two, and the sliding strips are arranged along the vertical direction, are fixed with the sliding seat plate 201 by bolts, welded or integrally formed, and are positioned on two sides of the sliding seat plate 201. The number of the sliding rails 207 is two, and the sliding rails are respectively connected with the two sliding strips 206 in a sliding manner, and are connected with the fixed frame 1 through bolts or welded. In other embodiments of the present application, the positions of the sliding rail 207 and the sliding bar 206 may be interchanged, i.e. the sliding bar 206 is arranged on the fixed frame 1 and the sliding rail 207 is arranged on the sliding seat plate 201.

Fig. 5 is an enlarged view of a portion a in fig. 3, and as shown in fig. 5, in some embodiments of the present application, a position sensor 103 is provided on the fixed frame 1, and the position sensor 103 is connected to a controller (not shown), and the controller is connected to a driver 204. The position sensor 103 can detect whether the printing unit 3 moves to a specified position, i.e., whether the head position of the printing unit 3 reaches the moisturizing position 7 or the printing position 8. The position sensor 103 detects the position of the printing unit 3 in real time and transmits data to the controller, and the controller controls the driver 204 according to the position information, and when the set position is reached, the controller controls the driver 204 to stop, so that the printing unit 3 stops moving. The distance (i.e. the printing gap) between the spray head and the printing material 9 can be ensured to be proper on one hand so as to obtain the optimal printing effect, and on the other hand, the spray head can be tightly contacted with the moisturizing mechanism when the spray head does not work, so that the good moisturizing effect is maintained, and the spray head is prevented from being blocked due to the formation of ink residues after the ink on the spray head is dried. The controller in this embodiment is a PLC controller, and in other embodiments, the controller may be a single chip microcomputer, a DCS controller, or an FCS controller, but is not limited thereto.

In some embodiments of the present application, as shown in fig. 5, a position detecting sensor 101 is provided on the fixed frame 1, a sensing block 215 is provided on the sliding seat plate 201, the position detecting sensor 101 corresponds to the position of the sensing block 215, the position detecting sensor 101 is connected with a controller, and the controller is connected with the driver 204. The position of the sensing block 215 can be detected in real time by the position detection sensor 101, so that the position of the printing unit 3 can be calculated, and the position of the printing unit 3 can be checked, and if the position sensor 103 is damaged or fails, the effect of safety guarantee can be achieved. The position detection sensor 101 detects the distance between the position detection sensor 101 and the sensing block 215 in real time and uploads the distance to the controller, the controller calculates the position of the printing unit 3 through the distance, when the printing unit 3 reaches a preset position, even if the position sensor 103 fails, the controller can control the driver 204 to stop working according to the data transmitted by the detection sensor 101, so that the position of the printing unit 3 is ensured to be accurate, and a safety guarantee function is achieved.

Fig. 4 is a schematic structural diagram of a lifting device according to an embodiment of the present application, and fig. 6 is an enlarged view of a portion B in fig. 4. As shown in fig. 4 and 6, in some embodiments of the present application, the lifting mechanism includes a gear box, a screw 203, and a sliding seat connecting plate 202, an input shaft of the gear box is connected with the driver, an output shaft of the gear box is connected with the screw 203, the sliding seat connecting plate 202 is fixedly connected with the sliding assembly, and the sliding seat connecting plate 202 is in threaded connection with the screw 203. The gearbox is internally provided with a plurality of transmission gears, with an input shaft and one or more output shafts, which can be used for acceleration and deceleration, for example a common speed change gearbox, and also can change the transmission direction, for example two conical gears can be used for vertically transmitting force to another rotating shaft, and also can change the rotating moment. In this embodiment, the output shaft of the driver 204 drives the input shaft of the gear box to rotate, and the output shaft of the gear box drives the screw 203 to rotate, so that the sliding seat connecting plate 202 moves linearly along the screw 203 due to the threaded connection between the sliding seat connecting plate 202 and the screw 203. The sliding seat connecting plate 202 is fixedly connected with the sliding seat plate 201, so that the sliding seat plate 201 is driven by the sliding seat connecting plate 202 to perform lifting movement, and the printing unit 3 is driven to perform lifting movement.

In some embodiments of the present application, the number of lifting mechanisms and sliding assemblies is two, and the lifting mechanisms and the sliding assemblies are respectively arranged at two ends of the hanger frame 205, and a synchronization mechanism for synchronizing the two lifting mechanisms is connected between the two lifting mechanisms. The two ends of the hanger frames 205 slide on the fixed frame 1 through the sliding components, the structure is more stable, the driver 204 can control the synchronous motion of the two lifting mechanisms through the synchronous mechanism, the synchronous lifting of the two ends of the two hanger frames 205 is ensured, and the control difficulty is reduced.

In some embodiments of the present application, as shown in fig. 4, the two lifting mechanisms are a first lifting mechanism and a second lifting mechanism, and the first lifting mechanism and the second lifting mechanism are basically the same in structure, except that the gear boxes used for the two mechanisms are different and the installation positions are different. The gear box in the first elevator mechanism is named first gear box 210 and the gear box in the second elevator mechanism is named second gear box 214. The synchronizing mechanism includes a synchronizing rod 213, and the first gear box 210 has two output shafts, one of which is connected to the screw 203, and the other of which is connected to the input shaft of the second gear box 214 through the synchronizing rod 213. The driver 204 drives the input shaft of the first gear box 210 to rotate, the two output shafts of the first gear box 210 respectively drive the screw 203 and the synchronous rod 213 to rotate, the synchronous rod 213 drives the input shaft of the second gear box 214 to rotate, and the output shaft of the second gear box 214 drives the screw 203 connected with the output shaft to rotate, so that synchronous lifting of the two lifting mechanisms is realized. As shown in fig. 6, a lifting seat plate 208 is fixedly provided on the fixed frame 1, and an adjusting plate 209 is provided on the lifting seat plate 208, and the adjusting plate 209 is used for installing a gear box and adjusting the position of the gear box. The lifting seat plate 208 and the adjusting plate 209 are respectively provided with a through hole for the output shaft of the gear box to extend out.

In some embodiments of the present application, the drive 204 is connected to the input shaft of the first gearbox 210 by a coupling 216. The output shaft of the gear box is also connected with the synchronizing rod 213 and the screw 203 through a coupling.

In some embodiments of the present application, the driver 204 is a motor, and further, the driver 204 is a servo motor. In other embodiments of the present application, the lifting mechanism may adopt a belt or chain transmission mechanism, where the sliding component is connected with the belt or chain, and the driver 204 drives the belt or chain to move, and may also drive the sliding component to slide up and down, so as to realize lifting of the printing unit 3.

In other embodiments of the present application, the lifting device may be a hydraulic cylinder, an electric push rod, or the like, but is not limited thereto, and a piston rod of the hydraulic cylinder, the electric push rod, or the like is connected to the movable assembly, and lifting of the printing unit 3 may be achieved as well.

In some embodiments of the present application, as shown in fig. 4, a connection beam 211 is fixedly connected to the fixed frame 1, and one or more supporting members 212 are provided on the connection beam 211, and the supporting members 212 are rotatably connected to the synchronization rod 213. In this embodiment, the support 212 is a bearing housing and a bearing mounted on the bearing housing, and the synchronizing rod 213 is rotatably connected to the bearing housing through an inner ring of the bearing. In other embodiments of the present application, the support 212 may be a U-shaped support with an upper opening, the inner side of which is coated with lubricating oil, and the middle of the synchronizing rod 213 is disposed inside the U-shaped support, but is not limited thereto. The number of the supporting pieces 212 may be one, two, three, etc., but is not limited thereto.

On the other hand, the present application also provides a printer, which includes the printing unit mounting structure provided in any one of the embodiments and a plurality of printing units mounted on the lifting device 2 in a one-to-one correspondence. The number of the lifting device 2 and the printing unit 3 is not limited.

The printer that this application provided has adopted the mode that a plurality of printing units independently go up and down, and the printing unit 3 of non-working is maintained in the position of moisturizing, can maintain the service condition and the life-span of shower nozzle better to the risk that the shower nozzle damaged has been reduced, thereby operation, the use cost of machine are reduced. The working state and the non-working state of each printing unit are completely independent, and the working state of any printing unit can be determined according to production requirements.

The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.

Claims (10)

1. A printing unit mounting structure, characterized in that: the printing device comprises a fixed frame (1) and a plurality of mutually independent lifting devices (2) arranged on the fixed frame (1), wherein the mutually independent lifting devices (2) are used for connecting independent printing units in one-to-one correspondence and driving the printing units to lift.

2. The printing unit mounting structure according to claim 1, wherein: the lifting device (2) comprises a driver (204) and a hanging frame (205), wherein the driver (204) is connected with a lifting mechanism for driving the hanging frame (205) to lift, and the hanging frame (205) is used for being connected with the printing unit.

3. The printing unit mounting structure according to claim 2, wherein: the two ends of the hanging frame (205) are fixedly connected with sliding components, the sliding components are in sliding connection with the fixed frame (1), and the lifting mechanism is connected with the sliding components.

4. A printing unit mounting structure according to claim 3, wherein: the sliding assembly comprises a sliding seat plate (201) and a sliding strip (206) fixedly connected with the sliding seat plate (201), a sliding rail (207) is arranged on the fixed frame (1), the sliding rail (207) is in sliding connection with the sliding strip (206), and the sliding seat plate (201) is connected with the lifting mechanism.

5. The printing unit mounting structure according to claim 4, wherein: a position sensor (103) for detecting the position of the printing unit (3) is arranged on the fixed frame (1), the position sensor (103) is connected with a controller, and the controller is connected with the driver (204); and/or be provided with position detection inductor (101) on fixed frame (1), be provided with sensing piece (215) on sliding bedplate (201), position detection inductor (101) be used for detecting its with distance between sensing piece (215), position detection inductor (101) are connected with the controller, the controller with driver (204) are connected.

6. The printing unit mounting structure according to any one of claims 3 to 5, wherein: the lifting mechanism comprises a gear box, a screw rod (203) and a sliding seat connecting plate (202), an input shaft of the gear box is connected with the driver, an output shaft of the gear box is connected with the screw rod (203), the sliding seat connecting plate (202) is fixedly connected with the sliding assembly, and the sliding seat connecting plate (202) is in threaded connection with the screw rod (203).

7. The printing unit mounting structure according to claim 6, wherein: the number of the lifting mechanisms and the number of the sliding assemblies are two, the lifting mechanisms and the sliding assemblies are respectively arranged at two ends of the hanging frame (205), and a synchronous mechanism used for enabling the two lifting mechanisms to synchronously move is connected between the two lifting mechanisms.

8. The printing unit mounting structure according to claim 7, wherein: the synchronizing mechanism comprises a synchronizing rod (213), and gearboxes in the two lifting mechanisms are connected through the synchronizing rod, wherein one gearbox is connected with the driver (204).

9. The printing unit mounting structure according to claim 8, wherein: the device further comprises a connecting beam (211), wherein the connecting beam (211) is fixedly connected with the fixed frame (1), one or more supporting pieces (212) are arranged on the connecting beam (211), and the supporting pieces (212) are rotationally connected with the synchronous rods (213).

10. A printer, characterized by: comprising a printing unit mounting structure according to any one of claims 1-9 and a plurality of printing units mounted on the lifting device (2) in a one-to-one correspondence.

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