WO2023103487A1

WO2023103487A1 - Continuous ink supply device for printer

Info

Publication number: WO2023103487A1
Application number: PCT/CN2022/116805
Authority: WO
Inventors: 单健; 王家远; 闫峂; 脱占贺; 单川
Original assignee: 北京中电元德科技有限责任公司
Priority date: 2021-12-08
Filing date: 2022-09-02
Publication date: 2023-06-15
Also published as: CN114290815B; CN114290815A

Abstract

A continuous ink supply device for a printer, comprising an ink supply cartridge (1). Main ink tanks (2) are provided at the lower part of the ink supply cartridge (1), and liquid level sensors (23) are provided in the main ink tanks (2); an ink supplementing device (3) is mounted above the main ink tanks (2) in the ink supply cartridge (1); the ink supplementing device (3) can move back and forth relative to the ink supply cartridge (1); the ink supplementing device (3) comprises a mounting frame (31); accommodating slots (32) corresponding to the positions of the main ink tanks (2) are mounted on the mounting frame (31); the accommodating slots (32) are used for placing ink supplementing ink boxes; when the mounting frame (31) moves backwards to a limit position, the ink outlets of the ink supplementing ink boxes placed on the accommodating slots (32) correspond to the positions of the ink inlets (211) of the main ink tanks (2); piercing devices (4) are mounted in the ink supply cartridge (1), and the piercing devices (4) are used for piercing sealing layers at the ink outlets of the ink supplementing ink boxes, so that ink in the ink supplementing ink boxes flows into the main ink tanks (2).

Description

Continuous ink supply device for printer

Cross References to Related Applications

This application claims priority to the Chinese patent application CN202111494825.X filed on December 08, 2021, entitled "A Continuous Ink Supply Device for Printers", and the entire content of the above application is incorporated herein by reference.

technical field

The invention relates to the technical field of inkjet printing equipment, in particular to a continuous ink supply device for a printer.

Background technique

In order to ensure the continuous and stable supply of ink to the print nozzles in existing inkjet printers, secondary ink cartridges are often installed on the printing carriage. The ink flows from the main ink tank into the secondary ink cartridges, and then the secondary ink cartridges supply the ink to each print nozzle. The secondary ink box is connected with the negative pressure device, so that there is a constant negative pressure value in the secondary ink box to ensure the stability of ink supply; there is a liquid level sensor in the secondary ink box to detect the amount of ink in the secondary ink box , so that when the secondary ink tank is short of ink, ink can be replenished from the main ink tank to the secondary ink tank in time. An inlet is set on the main ink tank in the prior art, and it is sealed with an ink cartridge cover. The ink cartridge cover is provided with an ink outlet joint, an air intake joint and a liquid level sensor. If the ink in the main ink tank is insufficient, the following two methods are usually adopted: Ink replenishment: one way is to add ink to the main ink tank, and the other way is to replace the main ink tank; when adding ink, the ink tank cover needs to be unscrewed, and the various joints set on it should be removed at the same time. When replacing the main ink tank, it is also necessary to unplug the pipeline on the ink cartridge, and then reconnect after replacing the main ink tank. Both operations need to stop the printer so that there is enough time to connect the connector and the liquid level sensor. Avoid ink supply being affected, which will affect the printing progress and output, and printing interruption may even affect the inkjet quality.

Contents of the invention

The present invention intends to provide a continuous ink supply device for printers to solve the deficiencies in the prior art. The technical problems to be solved by the present invention are achieved through the following technical solutions.

A continuous ink supply device for a printer, comprising an ink supply tank, a main ink tank is provided at the bottom of the ink supply tank, and a liquid level sensor is arranged inside the main ink tank; the top of the main ink tank in the ink supply tank is An ink replenishment device is installed, and the ink replenishment device can move forward and backward relative to the ink supply tank. The ink replenishment device includes a mounting frame, and the mounting frame is equipped with a container corresponding to the position of the main ink tank. Groove, the accommodating groove is used to place the ink replenishment cartridge, when the mounting frame is moved to the limit position, the ink outlet of the ink refill cartridge placed on the accommodating groove and the ink inlet of the main ink tank The positions of the ports correspond to each other; a perforation device is installed in the ink supply tank, and the perforation device is used to puncture the sealing layer at the ink outlet of the ink replenishment cartridge, so that the ink replenishment cartridge The ink flows into the main ink tank.

Preferably, the left and right sides of the installation frame are respectively provided with drawer slide rails interconnected with the ink supply tank, so that the ink replenishing device can move back and forth relative to the ink supply tank.

Preferably, the main ink tank includes a tank body and an upper cover that cover each other, the ink inlet is arranged on the upper cover, and a chute is provided at the lower end of the ink inlet.

Preferably, the bottom of the tank body is inclined, and the lower side of the inclined bottom of the tank body is provided with an ink outlet hole, and the outer port of the ink outlet hole is provided with an ink outlet joint.

Preferably, the bottom of the tank body is provided with a groove communicating with the ink outlet hole, and the upper end of the groove is provided with a filter layer.

Preferably, an ink receiving tank is arranged under the rear side of the accommodating tank, and the ink receiving tank is movably connected with the installation frame and can move forward and backward relative to the installation frame.

Preferably, the left and right sides of the ink receiving tank are respectively provided with connecting parts, and the ink receiving tank is movably connected with the installation frame through the connecting parts, and the connecting parts include two The front bracket and the rear bracket fixedly connected with the installation frame, the front bracket and the rear bracket are fixedly connected with the front bracket and the rear bracket and penetrated through the ink tank The connecting column on the front support and the ink tank is sleeved with a spring.

Preferably, a through groove is provided at the bottom of the accommodating groove, the position of the through groove corresponds to the position of the label on the ink replenishment cartridge, and the bottom of the accommodating groove is provided with a Location-corresponding label reading device.

Preferably, side plates are installed on the left and right sides of the ink supply tank respectively, and a mounting bracket is installed between the two side plates, and the hole-breaking device is mounted on the mounting bracket and connected with the main ink tank. Corresponds to the location of the ink inlet.

Preferably, the punching device includes a cylinder installed on the mounting bracket, the output end of the cylinder is equipped with a block, and the lower end of the block is provided with a punching sheet. There is an ink blocking cover, the lower end of the ink blocking cover is open and the lower end is placed in the ink inlet of the main ink tank.

The present invention has following beneficial effect:

1) Through the setting of the push-pull ink replenishment device, the operation is convenient, and the ink replenishment of the main ink tank is realized without stopping printing, which solves the problem of delay in printing progress caused by stopping the printer when replenishing ink in the prior art Problems, ensure continuous ink supply, improve printing efficiency;

2) The bottom of the main ink tank is inclined and the ink outlet is provided with a groove and a filter layer, which can prevent impurities such as sediment from blocking the ink outlet or ink supply channel;

3) The setting of the ink receiving tank can prevent the remaining ink in the ink refill cartridge from falling out and contaminating other parts;

4) The setting of the label reading device can avoid using unmatched ink to affect the printing quality, and the reliability is higher.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a structural schematic diagram of the present invention after hiding the ink supply tank;

Fig. 3 is a structural schematic diagram of another angle after the ink supply tank is hidden in the present invention;

Fig. 4 is another schematic structural view of the present invention after the ink supply tank is hidden;

Fig. 5 is a structural schematic diagram of the connection part in the present invention;

Figure 6 is a schematic structural view of the ink replenishment device in the present invention;

Fig. 7 is a schematic diagram of the installation structure of the perforation device in the present invention;

Fig. 8 is a schematic structural view of a hole-breaking device in the present invention;

Fig. 9 is the structural representation of main ink tank among the present invention;

Fig. 10 is a schematic diagram of the internal structure of the main ink tank in the present invention;

The reference signs in the accompanying drawings are: 1. Ink supply box, 2. Main ink tank, 21. Tank body, 211. Ink inlet, 2111. Chute, 22. Upper cover, 221. Ink outlet hole, 222 , groove, 23, liquid level sensor, 24, ink outlet connector, 25, filter layer, 3, ink replenishment device, 31, installation frame, 32, accommodation tank, 321, through groove, 33, drawer slide rail, 4 , Hole breaking device, 41, Cylinder, 42, Ink blocking cover, 43, Blocking block, 44, Hole hole sheet, 5, Ink receiving tank, 61, Front support, 62, Rear support, 63, Connecting column, 64, Spring , 7, label reading device, 81, mounting bracket, 82, side plate.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

Example 1:

Referring to Fig. 1 to Fig. 4, a continuous ink supply device for a printer is improved in that it includes an ink supply tank 1, the lower part of the ink supply tank 1 is provided with a main ink tank 2, and the main ink tank 2 is provided with a liquid level sensor 23; the top of the main ink tank 2 in the ink supply tank 1 is installed with an ink replenishment device 3, and the ink replenishment device 3 can move back and forth relative to the ink supply tank 1. The ink device 3 includes a mounting frame 31, on which an accommodating groove 32 corresponding to the position of the main ink tank 2 is installed, and the accommodating groove 32 is used for placing the ink replenishment cartridge, and the mounting frame 31 When moving back to the limit position, the ink outlet of the ink replenishment cartridge placed on the accommodating tank 32 corresponds to the position of the ink inlet 211 of the main ink tank 2; The hole-breaking device 4 is used to puncture the sealing layer at the ink outlet of the ink replenishment cartridge, so that the ink in the ink replenishment cartridge flows into the main ink tank 2 .

In this embodiment, the main ink tank 2 is provided in the ink supply box 1, and the quantity of the main ink tank depends on the type of ink required for printing. The tank 2 communicates with the secondary ink box of the printer, and is used for continuously supplying ink to the secondary ink box, so as to ensure the normal ink ejection of the nozzle. As shown in Figure 1, the front side of the ink supply tank 1 is open, and the top of the main ink tank 2 is provided with an ink replenishment device 3. When the amount of ink in the main ink tank 2 is low, the liquid level sensor 23 sends an early warning signal to remind the operation The personnel replenish the ink in time. At this time, the operator pulls the ink replenishment device 3 forward, places the ink replenishment ink cartridge on the accommodating tank 32, then pushes the ink replenishment device 3 backward into the ink supply tank 1, and the ink replenishment device When moving to the limit position after 3, the position of the ink outlet of the ink replenishment cartridge corresponds to the position of the ink inlet 211 of the main ink tank 2, and the sealing layer at the ink outlet of the ink replenishment cartridge is pierced through the hole-breaking device 4 , so that the ink in the ink replenishment cartridge flows into the main ink tank 2 from the ink inlet 211 to complete the ink replenishment work without stopping the printing of the printer.

This embodiment provides a continuous ink supply device for printers, which is easy to operate. Through the setting of the push-pull ink replenishment device 3, the ink replenishment of the main ink tank 2 is realized without stopping printing, which solves the problem of the prior art. The problem of delays in printing progress caused by stopping the printer during ink replenishment ensures continuous ink supply and improves printing efficiency.

Further, the bottom of the accommodating groove 32 is inclined, so that the ink in the ink refill cartridge can flow out more thoroughly, reducing waste.

Further, the left and right sides of the installation frame 31 are respectively provided with drawer slide rails 33 interconnected with the ink supply tank 1 , so that the ink supply device 3 can move back and forth relative to the ink supply tank 1 .

Example 2:

On the basis of Embodiment 1, referring to Fig. 9 and Fig. 10, the main ink tank 2 includes a tank body 21 and an upper cover 22 which are covered with each other, and the ink inlet 211 is arranged on the upper cover 22 , The lower end of the ink inlet 211 is provided with a chute 2111 .

Further, the opening direction of the chute 2111 faces away from the liquid level sensor 23 .

Further, the bottom of the tank body 21 is inclined, and the lower side of the bottom of the tank body 21 is provided with an ink outlet hole 221, and the outer port of the ink outlet hole 211 is provided with an ink outlet joint 24 .

Further, the bottom of the tank body 21 is provided with a groove 222 communicating with the ink outlet hole 211 , and the upper end of the groove 222 is provided with a filter layer 25 .

In this embodiment, the setting of the chute 2111 guides the flow of ink, preventing the ink from directly pouring onto the liquid level sensor 23 and affecting the detection accuracy of the liquid level sensor 23 . The bottom of the tank body 21 is inclined to facilitate the flow of ink to the ink outlet hole 211 at the lower position. The groove 222 and the filter layer 25 are arranged to filter the sediment and other impurities in the ink flowing into the ink outlet hole 211 to avoid precipitation. Impurities such as objects block the ink outlet hole 211 or the ink supply channel.

Example 3:

On the basis of

Embodiment

1 or 2, as shown in FIG. 4 and FIG. 5 , an ink receiving tank 5 is provided under the rear side of the accommodating tank 32 , and the ink receiving tank 5 is movably connected with the installation frame 31 And it can move back and forth relative to the installation frame 31 .

Further, the left and right sides of the ink receiving tank 5 are respectively provided with connecting parts, and the ink receiving tank 5 is flexibly connected with the installation frame 31 through the connecting parts, and the connecting parts include The front and rear brackets 61 and rear brackets 62 fixedly connected to the front and rear sides of the groove 5 and the mounting frame 31 are provided with the front bracket 61 and the rear bracket 62 between the front bracket 61 and the rear bracket 62. The connecting column 63 is fixedly connected and passed through the ink receiving tank 5 , and a spring 64 is sleeved on the connecting column 63 between the front bracket 61 and the ink receiving tank 5 .

In this embodiment, when the main ink tank 2 is replenished with ink again, the ink replenishment device 3 with the ink replenishment cartridge placed thereon is pulled out forward, there may be residual ink in the ink replenishment cartridge, at this time, the ink receiving tank 5 is in contact with the rear bracket 62 under the pressure of the spring 64, and the ink receiving tank 5 is just below the rear end of the accommodating tank 5 to receive the ink dripped from the ink refill cartridge. After replacing the ink replenishment cartridge, push the ink replenishment device 3 back into the ink supply tank 1. When the mounting frame 31 moves to the limit position, the ink receiving tank 5 is blocked by the ink inlet 211 of the main ink tank 2. At this time , the ink tank 5 is pushed forward, moves forward along the connecting column 63 and compresses the spring 64 . When the ink replenishing device 3 is pulled out again, the ink receiving tank 5 moves back to abut against the rear bracket 62 under the action of the spring. In this embodiment, the setting of the ink receiving tank 5 can prevent the ink from dripping onto other parts and causing pollution during the process of pulling the ink replenishing device 3 .

Example 4:

On the basis of any of the above-mentioned embodiments, as shown in FIG. 6 , the bottom of the accommodating groove 32 is provided with a through groove 321, and the position of the through groove 321 corresponds to the position of the label on the ink replenishment cartridge. , the bottom of the accommodating groove 32 is provided with a label reading device 7 corresponding to the position of the through groove 321 .

In this embodiment, due to the particularity of the printer's functions, the requirements for printing ink are also relatively high. In order to avoid the use of mismatched ink and affect the printing quality, a label reading device 7 is provided at the bottom of the storage tank 32 to supplement the printing ink. After the ink cartridge is placed on the accommodating tank 32, the label affixed on it is located at the through groove 321 of the accommodating tank 32, and the label reading device 7 reads the content of the label to identify the type of ink, and the label reading device 7 Send a signal to the control system, and when the ink meets the requirements, the control system controls the perforation device 4 to perforate the ink replenishment cartridge for ink replenishment, if the ink is not of the required ink type, the control system reminds the operator to replace the ink types, so as to ensure printing quality and higher reliability.

Example 5:

On the basis of any of the above-mentioned embodiments, as shown in Fig. 3, Fig. 4, Fig. 7 and Fig. 8, side plates 82 are installed on the left and right sides of the ink supply tank 1 respectively, and between the two side plates 82 An installation bracket 81 is installed between them, and the perforation device 4 is installed on the installation bracket 81 and corresponds to the position of the ink inlet 211 of the main ink tank 2 .

Further, the perforation device 4 includes a cylinder 41 mounted on the mounting bracket 81, the output end of the cylinder 41 is equipped with a block 43, and the lower end of the block 43 is provided with a perforation piece 44. The outer cover of the blocking block 43 is provided with an ink blocking cover 42 , the lower end of the ink blocking cover 42 is open and the lower end is placed in the ink inlet 211 of the main ink tank 2 .

In this embodiment, when in use, the output end of the cylinder 41 stretches out, and the perforated sheet 44 protrudes forward. The lower end of the cover 42 is placed in the ink inlet 211 of the main ink tank 2, which can block the splashed ink when the sealing layer is pierced and flow into the main ink tank 2, so as to prevent the ink from spilling on other parts.

It should be pointed out that the above detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used herein is only used to describe specific embodiments, and is not intended to limit the exemplary embodiments according to the present application. As used herein, singular forms are intended to include plural forms unless the context clearly dictates otherwise. In addition, it should also be understood that when the terms "comprising" and/or "comprises" are used in this specification, it indicates the presence of features, steps, operations, means, components and/or their combination.

It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include steps or units not explicitly listed or for these processes, methods, products, or Other steps or units inherent to equipment.

For the convenience of description, spatially relative terms may be used here, such as "on ...", "over ...", "on the surface of ...", "above", etc., to describe The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, devices described as "above" or "above" other devices or configurations would then be oriented "beneath" or "above" the other devices or configurations. under other devices or configurations". Thus, the exemplary term "above" can encompass both an orientation of "above" and "beneath". The device may be oriented in different ways, rotated 90 degrees or at other orientations, and the spatially relative descriptions used herein interpreted accordingly.

In the above detailed description, reference was made to the accompanying drawings, which form a part hereof. In the drawings, similar symbols typically identify similar components, unless context dictates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented herein.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

A continuous ink supply device for a printer, characterized in that it includes an ink supply tank (1), a main ink tank (2) is provided at the lower part of the ink supply tank (1), and a main ink tank (2) is arranged inside the main ink tank (2). There is a liquid level sensor (23); an ink replenishment device (3) is installed above the main ink tank (2) in the ink supply tank (1), and the ink replenishment device (3) can be positioned relative to the ink supply tank (1) moving back and forth, the ink replenishing device (3) includes a mounting frame (31), and the mounting frame (31) is equipped with an accommodating groove (32) corresponding to the position of the main ink tank (2) , the accommodating groove (32) is used to place the refill ink cartridge, and when the installation frame (31) is moved to the limit position, the ink outlet of the refill ink cartridge placed on the accommodating groove (32) and the The position of the ink inlet (211) of the main ink tank (2) is corresponding; the hole-breaking device (4) is installed in the described ink supply tank (1), and the hole-breaking device (4) is used for the The sealing layer at the ink outlet of the ink replenishment cartridge is pierced, so that the ink in the ink replenishment cartridge flows into the main ink tank (2).
A continuous ink supply device for a printer according to claim 1, characterized in that: the left and right sides of the installation frame (31) are respectively provided with drawer slides ( 33), so that the ink replenishing device (3) can move back and forth relative to the ink supply tank (1).
A continuous ink supply device for a printer according to claim 1, characterized in that: the main ink tank (2) includes a tank body (21) and an upper cover (22) that are covered with each other, and the ink inlet (211) is arranged on the upper cover (22), and the lower end of the ink inlet (211) is provided with a chute (2111).
A continuous ink supply device for a printer according to claim 3, characterized in that: the bottom of the tank body (21) is arranged obliquely, and the lower side of the bottom of the tank body (21) arranged obliquely is arranged There is an ink outlet hole (221), and the outer port of the ink outlet hole (221) is provided with an ink outlet joint (24).
A continuous ink supply device for a printer according to claim 4, characterized in that: the bottom of the tank body (21) is provided with a groove (222) communicating with the ink outlet hole (221), so that The upper end of the groove (222) is provided with a filter layer (25).
A continuous ink supply device for a printer according to claim 1, characterized in that: an ink receiving tank (5) is provided under the rear side of the accommodating tank (32), and the ink receiving tank (5) is connected to the ink receiving tank (5) The installation frame (31) is movably connected and can move back and forth relative to the installation frame (31).
A continuous ink supply device for a printer according to claim 6, characterized in that: the left and right sides of the ink receiving tank (5) are respectively provided with connecting parts, and the ink receiving tank (5) is connected through the connecting parts. The part is movably connected with the installation frame (31), and the connection part includes a front bracket (61) and a rear bracket which are respectively located at the front and rear sides of the ink tank (5) and are fixedly connected with the installation frame (31) (62), the front bracket (61) and the rear bracket (62) are fixedly connected with the front bracket (61) and the rear bracket (62) and passed through the ink tank (5) on the connecting post (63), the connecting post (63) between the front bracket (61) and the ink tank (5) is sleeved with a spring (64).
A continuous ink supply device for a printer according to any one of claims 1-7, characterized in that: a through groove (321) is provided at the bottom of the accommodating groove (32), and a through groove (321) of the through groove (321) The position corresponds to the position of the label on the ink refill cartridge, and the bottom of the accommodating groove (32) is provided with a label reading device (7) corresponding to the position of the through groove (321).
A continuous ink supply device for a printer according to any one of claims 1-8, characterized in that: side plates (82) are respectively installed on the left and right sides of the ink supply tank (1), and the two sides A mounting bracket (81) is installed between the plates (82), and the hole-breaking device (4) is mounted on the mounting bracket (81) and connected to the ink inlet (211) of the main ink tank (2). corresponding to the location.
A continuous ink supply device for a printer according to claim 9, characterized in that: the perforation device (4) includes a cylinder (41) installed on the mounting bracket (81), and the cylinder (41 ) is equipped with a blocking block (43), the lower end of the blocking block (43) is provided with a perforated sheet (44), and the outer cover of the blocking block (43) is provided with an ink retaining cover (42), so The lower end of the ink blocking cover (42) is open and the lower end is placed in the ink inlet (211) of the main ink tank (2).