WO2013044753A1 - Ink-filling device - Google Patents

Abstract

Disclosed is an ink-filling device for a cartridge, used for filling two cartridges (1) having printing heads with ink, the height of protruding stages (12) of the two cartridges being different, and the top surface area of identifying protrusions (13) of the two cartridges also being different. The ink-filling device comprises a base (2) provided with a socket (22); an upper cover (3); a protective plate (39) for ink-filling pins, the protective plate (39) for ink-filling pins being provided with openings corresponding to the identifying protrusions (13); a seal (35); a sealing cushion for nozzles (23) provided inside the socket (22), so that the distance from the upper surface of the sealing cushion for nozzles (23) to the edge of the socket (22) matches the height of the lower protruding stages (12). The openings match the areas of the identifying protrusions (13) having a larger top surface area. The ink-filling device also comprises a plate-like heightener (24), and the distance from the upper surface of the sealing cushion for nozzles (23) to the upper surface of the heightener (24) is equal to the height of the higher protruding stages (12). The ink-filling device has a reliable seal.

Description

 Ink filling device

The present invention relates to an ink filling device that is dedicated to replenishing ink cartridges with printheads used in ink jet printers. The present invention is based on a Chinese utility model patent application filed on Sep. 27, 2011, with the application number 201120374190.5, the content of which is hereby incorporated by reference.

The utility model patent of the publication No. CN201856449U filed by the applicant discloses a "ink filling device for an ink cartridge". The structure of the device is as shown in FIG. 1 , and comprises a base 2 and an upper shell 3 connected to the base 2 . And the ink syringe 4. The ink cartridge 1 to be inked can be placed between the base 2 and the upper casing 3. The ink cartridge 1 is a color ink cartridge, and is an ink cartridge with a print head and an ink cartridge. The top of the ink cartridge 1 is provided with a plurality of ink filling holes 11 corresponding to the ink storage chambers of different color inks contained in the ink cartridges. The surface also has an identification bump 13 adapted to the printer. The identification of the bump 13 is for the printer to recognize, and the ink cartridge that is not suitable for the printer will not be properly installed in the printer. A printhead located at the bottom of the cartridge is formed on the boss 12 that projects from the bottom. The upper casing 3 has a receiving cavity 38. The lower portion of the receiving cavity 38 is open. The open outer side of the upper casing 3 is provided with a connecting mechanism 36 connected to the base 2. The top wall 31 of the upper casing 3 is fixed with a corresponding ink filling hole. a plurality of ink filling needles 33. When the upper casing 3 is engaged with the base 2, the lower end of the ink filling needle 33 can be inserted into the ink storage chamber inside the ink cartridge 1 from the ink filling hole 11 at the top of the ink cartridge 1 to establish communication with the ink storage chamber inside and outside. Ink filling channel. When filling the ink, the upper end of the ink filling needle 33 is in contact with the ink outlet 41 at the bottom of the syringe 4; the bottom of the upper casing 3 is further provided with an ink filling needle protection plate 39 which is movable along the axial direction of the ink filling needle 33, and the ink filling needle The protective plate 39 has a through hole 391 through which the ink filling needle 33 can pass. The bottom surface of the ink filler protection plate 39 is provided with an opening 393 which can be raised upward in cooperation with the identification projection 13 on the top of the ink cartridge 1. A sealing member 35 for sealing the ink filling hole 11 at the time of filling the ink is further disposed under the bottom surface of the ink filling needle protection plate 39. The sealing member 35 is restricted to the covering irrigation by a limit strip on the lower surface of the ink filling needle protection plate 39. The area of the ink hole 11. The base 2 is provided with a recess 22 adapted to the shape of the boss 12, the bottom of which is provided with a gasket 23 for sealing the nozzle of the printhead during filling. The fasteners 21 of the two sides of the base 2 cooperate with the connecting mechanism 36, and the cooperation of the two can firmly or uncouple the base 2 and the upper casing 3 to facilitate the insertion or removal of the ink cartridge 1 before and after the ink filling.

Referring to FIG. 1 and FIG. 2, two guiding posts 382 are provided in the receiving cavity 38 of the upper casing 3 to cooperate with the ink filling needle protection plate 39. The two guiding pillars 382 are respectively disposed on the ink filling needle protection plate 39 and The spring 37 between the inner sides of the top wall 31, in use, firstly inserts two springs 37 into the two guide posts 382, and the ink filler protection plate 39 with the sealing member 35 is opened from the lower portion of the receiving cavity 38. Into two guide posts 382, Then, the base 2 equipped with the nozzle gasket 23 and the ink cartridge 1 is aligned with the upper casing 3, and the lower open sleeve of the accommodating chamber 38 of the upper casing 3 is pushed downward toward the lower seat 2, and the ink cartridge 1 reverses the ink filler protection plate. 39 is pressed along the two guide posts 382 toward the top wall 31 to press the spring 37 against the top wall 31, and then the fastener 21 is fastened to the connecting mechanism 36. The spring 37 is pre-compressed to generate a restoring force, and the ink filler protection plate 39 is pressed in the direction of the base 2, so that the sealing member 35 and the nozzle gasket 23 are respectively filled with the ink filling hole 11 and the printing head 12 of the ink cartridge 1 from the upper and lower directions. The nozzles are in close contact, so that the ink reservoir is in a sealed state from the outside. The distance from the bottom of the recess 22 to the position of the ink filler protection plate 39 in the accommodating chamber 38 against the top of the ink cartridge is matched with the total height of the ink cartridge 1, the depth of the recess 22 minus the thickness and convexity of the nozzle gasket 23. The height of the table 12 is adapted.

The existing ink cartridges conforming to the above structural features have two styles, which are respectively adapted to two different types of printers, and the structural features have many similarities, and the difference is only in the height of the boss 12 protruding downward from the bottom, and One difference is that the top surface area of the identification bump 13 disposed on the top of the ink cartridge is divided into other sizes and sizes. These two differences make the ink filling device provided by CN201856449U not applicable to both ink cartridges at the same time.

Further, there is another drawback in that the sealing member 35 and the gasket 23 are also easily lost when the ink cartridge 1 is taken out, and are not reliably dropped by the fixing, and are often lost.

The main object of the present invention is to provide an ink filling device which can be applied to two types of ink cartridges with a print head;

Another object of the present invention is to provide a relatively secure ink filling device for the sealing member and the gasket.

The technical solution adopted by the ink filling device of the ink cartridge of the invention is that the two ink cartridges with the printing head are respectively filled with ink, and the heights of the bosses of the two ink cartridges are different, and the top surface area of the identification bumps of the two ink cartridges is different. Different in size, the ink filling device comprises a base, the base is provided with a groove; the upper shell has a receiving cavity therein; and the ink filling needle protecting plate has an opening opposite to the identifying convex block; a sealing member disposed on a bottom surface of the ink filler needle protection plate opposite to the ink filling hole of the ink cartridge; a nozzle sealing gasket disposed in the groove to make the upper surface of the nozzle gasket The distance to the groove along the mouth is adapted to the height of the lower boss; the opening is adapted to the area of the identification bump having a larger top surface area; and the plate-shaped height increasing body, the upper surface of the nozzle gasket to the heightening body The distance between the upper surfaces is equal to the height of the upper boss; when the lower ink cartridge of the boss is filled with ink, the nozzle gasket is installed in the groove; when the higher ink cartridge of the boss is filled with ink, the nozzle gasket and the height are simultaneously increased The body is installed in the groove and the groove along Next.

As a further improvement of the above technical solution, the nozzle gasket and the height increasing body are integrally connected by a vertical connecting piece. It is not easy to drop one of the operations during the operation, and the action is more simplified during the installation process.

As a further improvement of the above technical solution, the bottom surface of the nozzle gasket is provided with a buckle; and the bottom of the groove is provided with a gasket card slot that is engaged with the buckle.

As a further improvement of the above technical solution, the bottom surface of the nozzle gasket is provided with a first buckle; the bottom surface of the heightening body is further provided with a second buckle; and the bottom of the groove is provided with a gasket that is engaged with the first buckle. a card slot; the groove is provided along the mouth side with a heightening body card slot that is engaged with the second buckle.

As a further improvement of the above technical solution, the top surface of the sealing member is further provided with a buckle, and the corresponding position of the ink filling needle protection plate is provided with a sealing member slot that is engaged with the sealing member.

The above two improvements respectively make the sealing member, the nozzle gasket and the heightening body better fixed on the groove of the ink filling needle protection plate and the base, thereby solving the problem that the sealing member, the nozzle sealing pad and the height increasing body are easily dropped.

As a further improvement of the above technical solution, the grooves and grooves form a stepped groove along the mouth. When the nozzle gasket and the heightening body are placed in the stepped groove, the overall connection is more consistent after the base and the upper casing are assembled.

Since the positioning groove of the invention can be matched with the identification bump of the largest size of the ink cartridge, it can be accommodated together with the identification bump of the smallest size, which solves the problem that the identification groove of the positioning groove and the size of the two sizes are not universally matched; The ink cartridge with the relatively high height of the limiting boss, the nozzle sealing pad and the height increasing body are simultaneously used, and are respectively placed in the groove and the groove along the mouth, and for the ink cartridge with the relatively low height of the limiting boss, the height increasing body is not needed. . The above technical solution solves the problem that the grooves are respectively matched with the nozzles of the ink cartridges of the limit bosses having different heights, so that the original ink filling device can be used for both types of the ink cartridges.

1 is an exploded view showing the structure of a conventional ink cartridge print head and an ink filling device;

Figure 2 is a cross-sectional view of a conventional ink cartridge print head and ink filling device;

Figure 3 is a structural exploded view of the first embodiment of the ink cartridge with ink cartridge and the ink filling device of the present invention;

Figure 4 is a cross-sectional view showing a first embodiment of the ink cartridge with ink cartridge and the ink filling device of the present invention;

Figure 5 is an exploded perspective view showing the base and the nozzle gasket in the first embodiment;

Figure 6 is an exploded view of the structure of the ink filler protection plate and the sealing member;

Figure 7 is an assembly view of the ink filler protection plate and the sealing member;

Figure 8 is a cross-sectional view showing a second embodiment of the ink cartridge with ink cartridge and the ink filling device of the present invention;

Figure 9 is a structural exploded view of the base and nozzle gasket in the second embodiment;

Figure 10 is an exploded perspective view showing a third embodiment of the ink cartridge with ink cartridge and the ink filling device of the present invention;

Figure 11 is a cross-sectional view showing a third embodiment of the ink cartridge with ink cartridge and the ink filling device of the present invention;

Figure 12 is a structural exploded view of the base and nozzle gasket in the third embodiment.

The invention will now be further described with reference to the drawings and embodiments.

First embodiment

In this embodiment, the ink filling device for injecting ink into the ink cartridge having a higher boss and a larger top surface area of the identification bump is shown in FIG. 3. The ink filling device of the ink cartridge of the present invention comprises the base 2 and the upper ink cartridge 1 placed upright. a casing 3 having a plurality of ink filling holes 11 and two identification protrusions 13 at the top of the ink cartridge 1 and a boss 12 at the bottom; the upper casing 3 has a receiving cavity 38, and the lower portion of the receiving cavity 38 is an open structure; The bottom surface of the needle protection plate 39 is provided with an opening 393 opposite to the identification projection 13 at the top of the ink cartridge 1. At the bottom of the ink filler protection plate 39, there is further provided a sealing member 35 for sealing the ink filling hole 11 at the top of the ink container 1 during ink filling, and the sealing member 35 is loosely covered by the limiting strip on the ink filling needle protection plate 39. An area opposite to the ink filling hole 11 of the ink cartridge 1 is disposed on a bottom surface of the ink filling needle protection plate 39; the base 2 is provided with a groove 22 that cooperates with the boss 12 of the ink cartridge 1, and the bottom of the groove 22 is provided for The nozzle gasket 23 of the nozzle on the bottom surface of the boss 12 is sealed during ink filling, and the groove 22 is provided with a height increasing body 24 along the mouth. A fastening member 21 is disposed on each of the upper end sides of the base 2, and each of the fastening members 21 has a fastening hole that can cooperate with the connecting mechanism 36.

Referring to FIG. 4, the top wall of the upper casing 3 is fixed with a plurality of ink filling needles 33. The lower end of the ink filling needle 33 can be inserted into the ink storage chamber inside the ink cartridge 1 from the ink filling hole at the top of the ink cartridge 1 to establish an ink filling passage; The ink filling needle protection plate 39 is movable along the axial direction of the ink filling needle 33 to a position close to the bottom portion 31 of the upper casing 3, and the receiving chamber 38 of the upper casing 3 is further provided with two guides that cooperate with the ink filling needle protection plate 39. The post 382, the two guide posts 382 are respectively sleeved with a spring 37 between the filling needle protection plate 39 and the top wall 31. The ink filling needle protection plate 39 has a through hole through which the ink filling needle 33 passes, and the opening 393 of the ink filling needle protection plate 39 is matched with the largest-sized identification protrusion 13 for the groove 22 and the bottom of the ink cartridge 1. Match.

Referring to FIG. 5, the nozzle gasket 23 is placed in the recess 22, and the nozzle gasket 23 further includes a first buckle 231. The recess 22 of the base 2 has a matching slot 225 therein, and the first buckle 231 passes through the card. The slot 225 places the non-return end of the first buckle 231 outside the slot 225, so that the nozzle gasket 23 is fixed in the recess 22 of the base 2; the heightening body 24 is placed along the side of the slot 25, and the heightening body 24 is further The second buckle 241 includes a groove 251 corresponding to the groove along the mouth 25, and the second buckle 241 passes through the slot 251 to fix the heightening body 24 to the groove along the mouth 25, and the nozzle gasket 23 The distance from the upper surface to the upper surface of the heightening body 24 is equal to the height of the upper boss 12, and the groove 22 and the groove form a stepped groove along the mouth side 25.

Referring to FIG. 6, the sealing member 35 further includes a buckle 351. The ink filler protection plate 39 has a matching slot 395. The buckle 351 passes through the slot 395 to place the non-return end of the buckle 351 outside the slot 395. The sealing member 35 is fixed to the ink filling needle protecting plate 39, and the sealing member 35 is assembled with the ink filling needle protecting plate 39 as shown in FIG.

In use, firstly, the nozzle gasket 23 and the height increasing body 24 are respectively installed in the groove 22 and the groove along the mouth 25, and then the boss 12 of the ink cartridge 1 is placed in the groove 22, and then the sealing member is installed. The ink filling needle protection plate 39 of 35 is moved along the two guiding posts 382 which are sleeved with the spring 37 to a position close to the bottom 31 of the upper casing 3, and finally the upper casing 3 is fastened to the base 2, and the fastening member 21 and the connecting mechanism 36 The fastening hole cooperates to fasten the upper casing 3 and the base 2, and the spring 37 causes the ink filling needle protection plate 39 to press the sealing member 35 against the ink filling port of the ink cartridge 1, and the nozzle at the bottom surface of the boss 12 and the bottom of the groove The nozzle seals can be in intimate contact.

Second embodiment

This embodiment is basically the same as the first embodiment, except that the opening 393 is matched with the smallest-sized identification bump 13 and the groove 22 is matched with the lower end of the ink cartridge 1 having a relatively low boss height. Referring to FIG. 8, the opening 393 Cooperating with the smallest sized identification bump 13, see Fig. 9, using only the nozzle seal 23 into the recess 22, the upper surface of the nozzle seal 23 to the distance of the groove along the rim 25 is adapted to the lower boss height So that the nozzle and the nozzle seal at the bottom of the groove can be in close contact.

In use, for the different ink cartridges 1 in the above two embodiments, as long as it is determined whether the plate-shaped elevation body 25 is used for the ink cartridges 1 of different boss heights 12, it may be in the structure in which the same base 2 and the upper casing 3 are combined. Ink.

Third embodiment

This embodiment is basically the same as the first embodiment, except that the nozzle gasket 23 and the height increasing body 24 are integrally connected by a vertical connecting piece, see FIGS. 10, 11, and 12.

In the present invention, since the distance between the upper surface of the nozzle gasket and the upper surface of the height increasing body is equal to the height of the upper boss, the shape formed is adapted to the shape of the bottom of the ink cartridge, so that the nozzle and the nozzle of the bottom of the groove are sealed. While being in close contact, the heightening body just lifts the shoulder of the limiting boss; when the ink filling device is matched with the ink cartridge of the relatively low height of the limiting boss, the heightening body in the above scheme is removed, and only the nozzle is sealed. The pad is placed in the groove. Since the distance from the upper surface of the nozzle gasket to the groove along the mouth is equal to the height of the lower boss, the nozzle can also be in close contact with the nozzle gasket at the bottom of the groove. Just next to the mouth, hold up the shoulder of the limit boss.

Claims (6)

An ink filling device for respectively filling two ink cartridges having a print head, wherein the heights of the top surfaces of the identification inks of the two ink cartridges are different, the ink filling Device includes a base, the base is provided with a groove; An upper casing having a receiving cavity therein; An ink filler protection plate having an opening opposite to the identification protrusion; a sealing member disposed on a bottom surface of the ink filler needle protection plate opposite to an ink filling hole of the ink cartridge; a nozzle gasket; the nozzle gasket is disposed in the groove such that a distance from an upper surface of the nozzle gasket to a groove along the mouth is adapted to the height of the lower boss; It is characterized by: The opening is adapted to an area of the identification bump having a larger top surface area; Also including a plate-shaped heightening body, a distance between an upper surface of the nozzle gasket and an upper surface of the heightening body being equal to a height of the higher boss; When the lower ink cartridge of the boss is filled with ink, the nozzle gasket is installed in the groove; When the upper ink cartridge of the boss is filled with ink, the nozzle gasket and the height increasing body are respectively installed in the groove and the groove is along the mouth.  The ink filling device according to claim 1, wherein the nozzle gasket and the height increasing body are integrally connected by a vertical connecting piece. The ink filling device according to claim 2, wherein: The bottom surface of the nozzle gasket is provided with a first buckle; and the bottom of the groove is provided with a gasket card slot that is engaged with the first buckle.  The ink filling device according to claim 1, wherein: The bottom surface of the nozzle gasket is provided with a first buckle; the bottom surface of the heightening body is further provided with a second buckle; The bottom of the groove is provided with a gasket card slot that is engaged with the first buckle; the groove is provided along the mouth with a heightening body card slot that is engaged with the second buckle. The ink filling device according to any one of claims 1 to 4, characterized in that: The top surface of the sealing member is provided with a buckle, and the corresponding position of the ink filling needle protection plate is provided with a sealing member slot that is engaged with the sealing member. The ink filling device according to any one of claims 1 to 4, characterized in that the groove and the groove form a stepped groove along the mouth.

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