WO2021169027A1

WO2021169027A1 - Jet printing machine

Info

Publication number: WO2021169027A1
Application number: PCT/CN2020/087903
Authority: WO
Inventors: 范永利; 黄平
Original assignee: 南京协辰电子科技有限公司
Priority date: 2020-02-28
Filing date: 2020-04-29
Publication date: 2021-09-02
Also published as: CN211406479U

Abstract

A jet printing machine, comprising: a base frame which comprises a base table (11) and a support frame (12); a clamp device which comprises a conveying carrying table (21) and a clamp (22), the clamp (22) being used for clamping a workpiece; a jet printing device which comprises a plurality of jet printing heads (32) facing the workpiece, the jet printing heads (32) extending in a direction perpendicular to a conveying direction of the workpiece; and a cleaning device which comprises a cleaning body slidably connected to the base table (11), the cleaning body being arranged between the jet printing heads (32) and the conveying carrying table (21) and being opposite to the jet printing heads (32). In a jet printing process, the jet printing heads (32) do not need to move, only a workpiece moves, it is guaranteed that ink is in place accurately and evenly, and therefore, good jet printing quality is obtained. Moreover, the cleaning body and the workpiece merely need to be moved to the position below the jet printing heads (32) in the corresponding working states, a space between the support frame (12) and the conveying carrying table (21) is fully utilized by means of the configuration of the cleaning body, and therefore, the occupied space of the jet printing machine in a non-height direction is reduced.

Description

A jet printing machine

Technical field

The utility model relates to the technical field of PCB board production, in particular to a jet printing machine.

Background technique

PCB character printing system is a new type of printing technology that has emerged in recent years. Compared with traditional screen printing technology, it is more efficient, low cost, good quality, flexible in application, simplifies the production process of PCB boards, shortens the production cycle, and saves The cost of manpower and material resources of the factory, energy saving and emission reduction, meet the requirements of green production. In the printing production, the nozzle of the printing machine must be cleaned by the cleaning device after a certain period of time before the next printing work can be carried out.

The prior art discloses a jet printing machine, which includes a jet printing device, a cleaning device and two conveying lines. The printing device includes a plurality of nozzles; the cleaning device is fixedly connected to the side of one of the conveying lines. When printing work, the PCB board is conveyed to the corresponding position through the conveying line, and multiple nozzles move along the conveying direction perpendicular to the conveying line to print the PCB board. In this process, the ink sprayed by the nozzles will be caused by the nozzles. The movement of the printer is disturbed and the position deviation occurs, and the air pressure in the ink cartridge that supplies the ink to the nozzle will change, resulting in uneven ink, which leads to the problem of poor printing quality; at the same time, due to the cleaning device The PCB board on the conveyor line cannot be blocked, and the space occupied by the cleaning device increases the length of the jet printer in the direction perpendicular to the conveyor line, thereby increasing the space occupied by the jet printer in the non-height direction.

Utility model content

Therefore, the technical problem to be solved by the present invention is to overcome the disadvantages of poor printing quality of the inkjet printer in the prior art and large space occupation in the non-height direction, so as to provide a inkjet printer.

A jet printing machine, including:

A base frame, which includes a base and a support frame, the support frame is supported on the base;

A clamp device, which includes a conveying stage and a clamp, the conveying stage is slidably connected to the base, and the clamp is provided on the conveying stage and is used to clamp a workpiece;

A jet printing device, which is slidably connected to the support frame, the jet printing device includes a plurality of nozzles facing the workpiece, and the nozzles extend along a conveying direction perpendicular to the workpiece and are used for printing on the workpiece superior;

The cleaning device includes a cleaning body slidably connected to the base, and the cleaning body is arranged between the spray head and the conveying platform and opposite to the spray head.

Further, the cleaning device further includes a cleaning support, the cleaning support is symmetrically connected to the cleaning body and located between the support frame and the conveying platform, and the cleaning support is slidably connected to the On the abutment.

Further, the support frame has a gantry structure, and the cleaning support and the cleaning body form a gantry structure.

Further, the cleaning device further includes a first moving module, the first moving module is arranged on the base and connected to the cleaning support for driving the cleaning support along the workpiece The conveying direction moves.

Further, the first mobile module includes a first motor and a belt drive assembly, the first motor is fixed on the base, the belt drive assembly is sleeved on the first motor, the The cleaning support is fixedly connected to the belt drive assembly.

Further, the first mobile module further includes a first rail assembly, the first rail assembly is fixed on the base, and the cleaning support is fixedly connected to the first rail assembly.

Further, the first guide rail assembly is symmetrically arranged in two groups, and the first motor and the belt transmission assembly are arranged in one group and corresponding to one of the first guide rail assemblies.

Further, the cleaning body includes an ink collection box and a suction member, the ink collection box is connected to the cleaning support member, and the suction member and the nozzle are disposed oppositely and in communication with the ink collection box.

Further, the jet printing device further includes a second moving module connected to the support frame and the spray head, and is used to drive the spray head to at least move up and down.

Further, the second moving module also drives the nozzle to move in a conveying direction perpendicular to the workpiece.

The technical scheme of the utility model has the following advantages:

1. The inkjet printer provided by the present invention includes: a base frame, which includes a base and a support frame, the support frame is supported on the base; a clamp device, which includes a conveying stage and a clamp, The conveying stage is slidably connected to the base, and the clamp is arranged on the conveying stage and used to clamp the workpiece; a jet printing device is slidably connected to the support frame, and the jet printing device includes A plurality of nozzles facing the workpiece, the nozzles extending along the conveying direction perpendicular to the workpiece, for printing on the workpiece; a cleaning device, which includes a cleaning body slidably connected to the base, so The cleaning body is arranged between the spray head and the conveying platform and is arranged opposite to the spray head. A type of jet printer with this structure, by setting the nozzle to extend along the conveying direction perpendicular to the workpiece, during the jet printing process, the nozzle does not need to move and only the workpiece moves without disturbing the ink ejected by the nozzle and will not affect The air pressure in the ink cartridge that provides ink to the print head ensures that the ink is in place accurately and evenly, so as to obtain a better print quality; at the same time, by cleaning the body between the print head and the workpiece and set opposite the print head, when printing The workpiece is located at the position below the nozzle, and the cleaning body is located at the position below the nozzle during cleaning. It only needs to be satisfied that the positions of the cleaning body and the workpiece are moved to the position below the nozzle in the corresponding working state. It can be blocked, so that the setting of the cleaning body makes full use of the space between the support frame and the conveying platform, thereby reducing the space occupied by the inkjet printer in the non-height direction.

2. In a jet printer provided by the present utility model, the support frame is a gantry structure, and the cleaning support and the cleaning body form a gantry structure. A jet printer with this structure, by setting the support frame as a gantry structure, the support frame is supported more stably and is convenient for production and installation; and the gantry structure is formed by setting the cleaning support and the cleaning body to make the cleaning device support more stable And it is easy to produce and install.

3. In the inkjet printer provided by the present invention, the first mobile module further includes a first rail assembly, the first rail assembly is fixed on the base, and the cleaning support is fixedly connected to The first rail assembly. A jet printer with this structure is provided with a first moving module and also includes a first guide rail assembly to improve the accuracy of the movement of the cleaning device.

4. In a jet printer provided by the present invention, the first guide rail assembly is symmetrically arranged with two groups, and the first motor and belt drive assembly are arranged with one group and corresponding to one of the first guide rail assemblies. . In a jet printer with this structure, the first guide rail assembly is symmetrically arranged with two sets and the first motor and belt transmission assembly is arranged with one set, which can ensure the synchronization of the movement of the cleaning support and improve the accuracy of the movement of the cleaning device .

5. In the jet printer provided by the present utility model, the second moving module also drives the nozzle to move along the conveying direction perpendicular to the workpiece. A jet printer with this structure also drives the nozzle to move in the conveying direction perpendicular to the workpiece by setting the second moving module. Before printing, the position of the nozzle in the conveying direction perpendicular to the workpiece can be adjusted. To ensure that the position of the nozzle during printing is the desired position.

Description of the drawings

In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the specific embodiments or the description of the prior art. Obviously, in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

Figure 1 is a schematic structural diagram of a jet printer provided in an embodiment of the utility model;

FIG. 2 is a schematic diagram of the structure of the inkjet printer shown in FIG. 1 without showing the inkjet printing device and the supporting frame;

Fig. 3 is a schematic diagram of the structure of the inkjet printer shown in Fig. 2 after rotating;

Figure 4 is a partial enlarged view of the left cleaning support shown in Figure 3;

Figure 5 is a partial enlarged view of the right cleaning support shown in Figure 3;

Fig. 6 is a schematic structural diagram of the clean mounting plate shown in Fig. 5;

Description of reference signs:

11-abutment, 12-support frame;

21- Conveying platform, 22- Fixture, 23- Conveying mobile module;

31-Printing mounting frame, 32-Print head, 33-Second X-axis movement module, 34-Second Z-axis movement module;

41-ink collection box, 42-suction piece;

51-left cleaning support, 52-right cleaning support;

6-Install the base;

71-first motor, 72-belt drive assembly, 721-first pulley, 722-second pulley, 723-belt, 73-first rail assembly, 731-first slider, 732-first rail;

8-Fixed mounting seat;

9-Clean the mounting plate, 91-tooth-shaped mounting surface.

Detailed ways

The technical solution of the present utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, not all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present utility model.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship of the other indications is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation and a specific orientation. The azimuth structure and operation of, therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection or an optional Detachable connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present utility model can be understood under specific circumstances.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Example

A jet printing machine as shown in Figures 1 to 6 includes a base frame, a clamp device, a jet printing device and a cleaning device. Among them, the base frame includes a base 11 and a support frame 12, and the support frame 12 is supported on the base 11; the clamp device includes a conveying stage 21 and a clamp 22, and the conveying stage 21 is slidably connected to the base through a conveying and moving module 23 assembly. 11. The clamp 22 is arranged on the conveying platform 21 and is used to clamp the workpiece; the printing device is slidably connected to the support frame 12 for printing the workpiece; the cleaning device is slidably connected to the base 11 for cleaning the printing device . Specifically, the support frame 12 may be a gantry structure as shown in FIG. 1, and the workpiece may be a PCB board or other workpieces; and the clamp 22 may be a pneumatic clamp. By setting the support frame 12 as a gantry structure, the support frame 12 is supported more stably and is convenient for production and installation. It should be noted that the specific structures of the conveying stage 21, the conveying movement module 23, and the clamp 22 can all adopt the existing technology, and the details are not repeated here.

As shown in FIG. 1, the printing device in this embodiment includes a printing mounting frame 31, a nozzle 32 and a second moving module. The printing mounting frame 31 is connected to the second mobile module, a plurality of nozzles 32 are mounted on the printing mounting frame 31, and the second mobile module is connected to the supporting frame 12 and the printing mounting frame 31 for driving the nozzle 32 to move. Specifically, a plurality of spray heads 32 are arranged to extend toward the workpiece and perpendicular to the conveying direction of the workpiece, and are used to spray ink on the workpiece.

As shown in FIG. 1, the second movement module in this embodiment includes a second X-axis movement module 33 and a second Z-axis movement module 34, wherein the second X-axis movement module 33 is used to drive the nozzle 32 along The movement is perpendicular to the conveying direction of the workpiece; the second Z-axis movement module 34 is used to drive the nozzle 32 to at least move up and down. As an alternative embodiment, the second movement module may not include the second X-axis movement module 33. It should be noted that both the second X-axis movement module 33 and the second Z-axis movement module 34 can adopt the structure of the motor-driven screw and guide rail assembly in the prior art to realize the driving of the printing mounting frame 31 when needed. The movement in the direction will not be repeated for this reason.

The second moving module also drives the nozzle 32 to move along the conveying direction perpendicular to the workpiece. Before printing, the position of the nozzle 32 along the conveying direction perpendicular to the workpiece can be adjusted to ensure that the nozzle 32 can print. The time position is the desired position.

The cleaning device in this embodiment includes a cleaning body, a cleaning support, and a first moving module. The cleaning body is connected to the cleaning support, and the cleaning support is connected to the first mobile module. The first mobile module is arranged on the base 11. The first mobile module drives the cleaning support to move along the conveying direction of the workpiece, so that The cleaning support drives the movement of the cleaning body, so that the cleaning body is slidably connected to the base 11.

The cleaning body in this embodiment is arranged between the spray head 32 and the conveying platform 21 along the height direction and is arranged opposite to the spray head 32. 1 to 3 specifically, the cleaning body includes an ink collection box 41 and a suction member 42. The ink collection box 41 is connected to the cleaning support member. The suction member 42 and the nozzle 32 are arranged opposite to each other and communicated with the ink collection box 41. The suction member 42 may be a suction nozzle, and the excess ink on the nozzle 32 is sucked away by the suction member 42 so as to realize the cleaning of the nozzle 32.

As shown in Figure 3, the cleaning support in this embodiment is symmetrically connected to the cleaning body and is located between the support frame 12 and the conveying platform 21 along the conveying direction perpendicular to the workpiece. The cleaning support and the cleaning body form a gantry structure. . The gantry structure is formed by arranging the cleaning support and the cleaning body, so that the cleaning device is supported more stably and is convenient for production and installation.

As shown in FIGS. 2 and 3, the first moving module in this embodiment includes a first motor 71, a belt drive assembly 72 and a first guide rail assembly 73. The first motor 71 is fixed on the base 11, the belt drive assembly 72 is sleeved on the first motor 71, and the cleaning support is fixedly connected to the belt drive assembly 72 and the first guide rail assembly 73. The first moving module is provided with the first guide rail assembly 73 to improve the accuracy of the movement of the cleaning device.

Specifically, the first guide rail assembly 73 is symmetrically arranged in two groups, and the first motor 71 and the belt transmission assembly 72 are arranged in one group and are arranged corresponding to one of the first guide rail assemblies 73. The first rail assembly 73 includes a first slider 731 and a first rail 732. The first slider 731 is slidably connected to the first rail 732 and fixedly connected to the cleaning support, and the first rail 732 is fixed on the base 11. By arranging the first guide rail assembly 73 to be symmetrically arranged with two sets and the first motor 71 and belt transmission assembly 72 with one set, the synchronization of the movement of the cleaning support can be ensured, and the accuracy of the movement of the cleaning device can be improved.

It should be noted that, in order to facilitate the description of the two cleaning supports in FIG. 3, in the following, the cleaning support located on the right side in FIG. 3 is the right cleaning support 52, and the cleaning support located on the left in FIG. 3 is左Clean support 51. The right cleaning support 52 is connected to a set of first rail assemblies 73, a first motor 71, and a belt drive assembly 72 correspondingly, and the left cleaning support 51 is connected to a set of first rail assemblies 73.

As shown in Figures 2 and 3, the belt drive assembly 72 in this embodiment includes a first pulley 721, a second pulley 722, and a belt 723. The first pulley 721 is sleeved on the first motor 71, and the second pulley 722 is set. Set on the fixed mounting seat 8 on the base 11, the belt 723 is sleeved on the first pulley 721 and the second pulley 722, as shown in FIG. The mounting base 6 is connected by fasteners in turn. The cleaning installation plate 9 has a tooth-shaped installation surface 91 as shown in FIG. 6, and the tooth-shaped installation surface 91 presses the belt 723 on the installation base 6 of the right cleaning support 52. And as shown in Figures 3 to 5, the two first sliders 731 are respectively located below the installation base 6 of the left cleaning support 51 and the installation base 6 of the right cleaning support 52, and the two corresponding ones are tightened Pieces are tightly connected.

In a jet printer of the present invention, the nozzle 32 is arranged to extend along the conveying direction perpendicular to the workpiece. During the jet printing process, the nozzle 32 does not need to move and only the workpiece moves without disturbing the ink ejected by the nozzle 32 And it will not affect the air pressure in the ink cartridge that provides ink to the nozzle 32, ensuring that the ink is accurately and uniformly in place, so as to obtain better printing quality; at the same time, it is installed between the nozzle 32 and the workpiece and with the nozzle by cleaning the body. 32 is set relative to each other, the workpiece is located below the nozzle 32 during printing, and the cleaning body is located below the nozzle 32 during cleaning. It only needs to meet the requirement that the positions of the cleaning body and the workpiece are moved below the nozzle 32 in the corresponding working state. In other states, the two can be blocked, so that the setting of the cleaning body makes full use of the space between the support frame 12 and the conveying platform 21, thereby reducing the occupation of the printer in the non-height direction space.

Obviously, the above-mentioned embodiments are merely examples for clear description, and are not intended to limit the implementation manners. For those of ordinary skill in the art, other changes or modifications in different forms can be made on the basis of the above description. It is unnecessary and impossible to list all the implementation methods here. The obvious changes or changes derived from this are still within the scope of protection created by the present utility model.

Claims

A jet printer, characterized in that it comprises:

A base frame, which includes a base and a support frame, the support frame is supported on the base;

A clamp device, which includes a conveying stage and a clamp, the conveying stage is slidably connected to the base, and the clamp is provided on the conveying stage and is used to clamp a workpiece;

A jet printing device, which is slidably connected to the support frame, the jet printing device includes a plurality of nozzles facing the workpiece, and the nozzles extend along a conveying direction perpendicular to the workpiece and are used for printing on the workpiece superior;

The cleaning device includes a cleaning body slidably connected to the base, and the cleaning body is arranged between the spray head and the conveying platform and opposite to the spray head.
The inkjet printer according to claim 1, wherein the cleaning device further comprises a cleaning support, and the cleaning support is symmetrically connected to the cleaning body and located between the support frame and the conveying carrier. Between the tables, the cleaning support is slidably connected to the base table.
The inkjet printer according to claim 2, wherein the support frame has a gantry structure, and the cleaning support and the cleaning body form a gantry structure.
The inkjet printer according to claim 2 or 3, wherein the cleaning device further comprises a first moving module, and the first moving module is arranged on the base and connected to the The cleaning support is used to drive the cleaning support to move along the conveying direction of the workpiece.
The inkjet printer according to claim 4, wherein the first moving module includes a first motor and a belt drive assembly, the first motor is fixed on the base, and the belt The transmission component is sleeved on the first motor, and the cleaning support is fixedly connected to the belt transmission component.
The inkjet printer according to claim 5, wherein the first moving module further comprises a first rail assembly, the first rail assembly is fixed on the base, and the cleaning support The piece is fixedly connected to the first rail assembly.
The inkjet printer according to claim 6, wherein the first guide rail assembly is symmetrically arranged in two groups, and the first motor and the belt transmission assembly are arranged in one group and the first group The guide rail components are correspondingly set.
The inkjet printer according to claim 2 or 3, wherein the cleaning body comprises an ink collecting box and a suction member, the ink collecting box is connected to the cleaning support member, and the suction member is connected to the cleaning support member. The nozzles are arranged oppositely and communicated with the ink collection box.
The inkjet printer according to claim 2 or 3, wherein the inkjet printing device further comprises a second mobile module, and the second mobile module connects the support frame and the nozzle with It drives the nozzle to at least move up and down.
The inkjet printer according to claim 9, wherein the second moving module also drives the nozzle to move in a conveying direction perpendicular to the workpiece.