An ink bag and inkjet printing system

Abstract

The present invention provides an ink bag and inkjet printing system. The ink bag includes a base, a connector, and a bag body. The connector has two ends connected to the base and the bag body, respectively. The connector is provided with a liquid discharge channel. The base has a perforation extending along the Y direction, and the liquid discharge channel is connected to the interior of the bag body and the perforation. The base has a connector mounting position at one end in the direction in which the perforation extends. Two first mounting posts are provided within the connector mounting position, and the two first mounting posts are respectively arranged on either side of the perforation in the radial direction. The first mounting posts extend along the Z direction. One end of the connector is disposed within the connector mounting position, and the other end of the connector protrudes outside the base. The connector has mounting holes on both sides of the liquid discharge channel, and the mounting holes are matingly connected to the first mounting posts. The base is also provided with a limiting structure for limiting the separation of the connector from the connector mounting position along the Z direction. The inkjet printing system includes a printing device and an ink bag. The present invention saves raw materials and reduces the number of production molds by simplifying the structure.

Description

Technical Field

[0001] This invention relates to the field of inkjet printing technology, specifically to an ink bag and an inkjet printing system. Background Art

[0002] With social development and technological advancements, printers have become common office tools, greatly facilitating people's lives. Inkjet printers, as a type of printer, are printing devices that use an ink-consuming device to draw ink from an ink bag and supply it to the print head to achieve printing. The ink bag, which holds the ink and provides the ink source for the inkjet printer, is a crucial component.

[0003] The ink bag is mounted on a rectangular bracket with arc-shaped limiting parts on opposite sides inside the bracket. The ink bag generally includes a base, a top cover, a connector, and a bag body. The connector is welded to the ink bag. The base and top cover are positioned opposite each other, with the connector located between them. The base has a perforation, and the connector has a liquid discharge channel communicating with the inside of the bag body. The perforation communicates with the liquid discharge channel. Traditional ink bags consist of a base and a top cover, each requiring separate production molds and consuming raw materials during production. Furthermore, to securely fix the connector and ink bag, the ends of the connector and bag body are also embedded between the base and top cover, requiring a longer length of the base and top cover in the ink bag's extension direction, consuming more raw materials. Moreover, to ensure a secure connection between the base and top cover, numerous locking mechanisms are needed, resulting in a complex structure for the base and top cover. This not only increases the difficulty of mold design but also wastes more raw materials, hindering cost reduction. Summary of the Invention

[0004] The primary objective of this invention is to provide an ink bag with a simplified structure to save raw materials and reduce the number of production molds.

[0005] A second objective of the present invention is to provide an inkjet printing system comprising the aforementioned ink bag.

[0006] To achieve the aforementioned first objective, the present invention provides an ink bag comprising a base, a connector, and a bag body. The two ends of the connector are connected to the base and the bag body, respectively. The connector is provided with a liquid discharge channel. The base has a perforation extending along the Y direction. The liquid discharge channel communicates with the interior of the bag body and the perforation. The base has a connector mounting position at one end along the extension direction of the perforation. Two first mounting posts are provided within the connector mounting position, respectively positioned on both sides of the radial direction of the perforation. The first mounting posts extend along the Z direction. One end of the connector is located within the connector mounting position, and the other end protrudes beyond the base. The connector has mounting holes on both sides of the liquid discharge channel, which engage with the first mounting posts. The base also has a limiting structure for preventing the connector from separating from the connector mounting position along the Z direction.

[0007] As can be seen from the above scheme, the connection between the base and the connector is achieved through the cooperation of the first mounting post and the mounting hole, thereby restricting the movement of the connector in the vertical Z-axis plane. By setting a limiting structure to restrict the movement of the connector in the Z-axis, a fixed connection between the base and the connector is achieved. One end of the connector of the present invention protrudes beyond the base, that is, compared with the traditional base, the size of the base of the present invention in the Y-axis is reduced, which is beneficial to saving the amount of raw materials used in the base. Under the premise of firmly fixing the connector and the bag body, the present invention has the advantage of saving raw materials. Compared with the traditional ink bag, the top cover is eliminated, which is also beneficial to reduce production molds, save raw materials and reduce production costs.

[0008] A further option is to install the limiting structure within the connector mounting position.

[0009] A further proposed solution is that the first mounting post is snapped into the mounting hole; the middle part of the first mounting post is inserted into the mounting hole, and the free end of the first mounting post protrudes out of the mounting hole. The free end of the first mounting post is provided with a hook that protrudes radially outward and is adjacent to the surface of the connector. The first mounting post is provided with a cavity along its own axial direction, and the free end and the hook of the first mounting post can move elastically along the width direction of the cavity.

[0010] A further solution is to provide two fixing clips inside the connector mounting position. The two fixing clips are respectively located on the outside of the two first mounting posts, extending along the Z direction, and engaging with the connector.

[0011] A further proposed solution is to fix the first mounting post to the mounting hole; the middle part of the first mounting post is inserted into the mounting hole, the free end of the first mounting post protrudes out of the mounting hole, and the first mounting post is welded to the mounting hole, so that the free end of the first mounting post protrudes to form a convex ring, the convex ring extends along the circumference of the first mounting post, and the convex ring is adjacent to the surface of the connector.

[0012] A further option is to place the limiting structure outside the connector mounting position.

[0013] A further design includes an ink bag with a top cover positioned opposite the base. A connector is positioned between the top cover and the base, with the end of the connector near the bag body exposed outside the top cover and the base. The top cover has two second mounting posts, which correspond to the first mounting posts. Both the first and second mounting posts are inserted into mounting holes. The base has slots on both sides of the connector mounting position, and the top cover has hooks corresponding to the slots. The hooks extend along the Z-direction and engage with the slots.

[0014] A further embodiment is that the base has a protrusion, a first slot, and a second slot on the first outer side of the connector mounting position. The protrusion is located at the end near the bag body and extends along the Z direction. The first slot passes through the middle of the protrusion along the Y direction, and the second slot is located on the side of the protrusion away from the connector mounting position. The base has a third slot and a fourth slot on the second outer side of the connector mounting position. The fourth slot is located at the end near the bag body, and the third and fourth slots are staggered along the Y direction. The top cover has a first hook, a second hook, a third hook, and a fourth hook. The first hook engages with the first slot, the second hook engages with the second slot, the third hook engages with the third slot, and the fourth hook engages with the fourth slot.

[0015] A further design involves a base with a groove and a chip mounting position at one end in the X direction. The groove extends along the Y direction, with guide portions on both sides of the groove wall. The bottom of the groove has an inclined surface, and the chip mounting position is located on the inclined surface. The chip mounting position includes a stepped groove, a through hole, and two limiting protrusions. The stepped groove is recessed into the inclined surface, the through hole penetrates the middle of the bottom of the stepped groove, and the two limiting protrusions are located on both sides of the through hole, protruding from the bottom of the stepped groove onto the surface of the inclined surface.

[0016] To achieve the second objective mentioned above, the present invention provides an inkjet printing system, including a printing device and the ink bag described above. Attached Figure Description

[0017] Figure 1 This is a structural diagram from a first perspective of an embodiment of the ink bag of the present invention.

[0018] Figure 2 This is a structural diagram from a second perspective of the ink bag embodiment one of the present invention.

[0019] Figure 3 This is a structural diagram of the base in the first embodiment of the ink bag of the present invention from a first-view perspective.

[0020] Figure 4 This is a structural diagram of the base from a second perspective in Embodiment 1 of the ink bag of the present invention.

[0021] Figure 5 This is a structural diagram of the connector from a first-view perspective in Embodiment 1 of the ink bag of the present invention.

[0022] Figure 6 This is a structural diagram of the connector from a second perspective in Embodiment 1 of the ink bag of the present invention.

[0023] Figure 7 This is a structural diagram from a first perspective of Embodiment 2 of the ink bag of the present invention.

[0024] Figure 8 This is a structural diagram from a second perspective of the ink bag embodiment two of the present invention.

[0025] Figure 9 This is a structural diagram of the base in Embodiment 2 of the ink bag of the present invention.

[0026] Figure 10 This is an exploded view of the ink bag embodiment three and the bracket of the present invention.

[0027] Figure 11 This is an exploded view of Embodiment 3 of the ink bag of the present invention.

[0028] Figure 12 This is a top view of Embodiment 3 of the ink bag of the present invention.

[0029] Figure 13 yes Figure 12 Cross-sectional view at AA in the middle.

[0030] Figure 14 This is a structural diagram of the base in Embodiment 3 of the ink bag of the present invention.

[0031] Figure 15 This is a structural diagram of the upper cover in Embodiment 3 of the ink bag of the present invention.

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0033] Ink bag example 1:

[0034] See Figures 1 to 6 The ink bag provided in Embodiment 1 of the present invention includes a base 1a, a connector 2, and a bag body 3. The first end of the connector 2 is welded and fixed to one end of the bag body 3, and the second end of the connector 2 is connected to the base 1a. Both the base 1a and the connector 2 are injection molded from plastic material. At least a portion of the bag body 3 is configured as a flexible component. A flexible component refers to a component that, after being deformed by force, cannot return to its original shape and maintains its deformed shape.

[0035] For ease of explanation, the width direction of bag body 3 is defined as the X direction, the extension direction of bag body 3 is defined as the Y direction, and the thickness direction of bag body 3 is defined as the Z direction.

[0036] The connector 2 has a liquid discharge channel 20 connected along the Y direction, and the base 1a has a perforation 10 connected along the Y direction in the middle. The two ends of the liquid discharge channel 20 are connected to the perforation 10 and the inside of the bag body 3, respectively.

[0037] The base 1a has a connector mounting position at one end of the through hole 10 extending in the direction of extension. The connector mounting position is groove-shaped and has two first mounting posts 11a. The two first mounting posts 11a are respectively located on both sides of the through hole 10 in the radial direction and extend along the Z direction.

[0038] One end of the connector 2 is located within the connector mounting position. The end of the connector 2 near the bag body 3 has a welding portion 24 for welding to the bag body 3. The cross-sectional shape of the welding portion 24 matches the cross-sectional shape of the bag body 3. The welding portion 24 is located outside the connector mounting position. Compared to a conventional base, the maximum distance of the base 1a in the Y direction in this embodiment is shorter. That is, the size of the base 1a in the Y direction is reduced, decreasing the volume of the base 1a and thus saving raw materials.

[0039] The connector 2 has mounting holes 21 on both sides of the liquid discharge channel 20. The mounting holes 21 are connected to the first mounting post 11a to restrict the movement of the connector 2 in the XY plane. The base 1a is also provided with a limiting structure to restrict the connector 2 from separating from the connector mounting position along the Z direction.

[0040] In this embodiment, a limiting structure is disposed within the connector mounting position. This limiting structure includes a supporting surface 12 within the connector mounting position for supporting the connector 2. The supporting surface 12 can be the bottom surface of the connector mounting position or the top surface of a protrusion 17 protruding from the bottom surface of the connector mounting position. The protrusion height of the protrusion 17 is lower than the height of the first mounting post 11a. The supporting surface 12 can restrict the movement of the connector 2 along the -Z direction. "-Z" refers to the direction opposite to the Z-direction arrow in the figure, and "+Z" refers to the direction in the same direction as the Z-direction arrow in the figure.

[0041] The limiting structure also includes a structure for restricting the movement of the connector 2 in the +Z direction. Specifically, the first mounting post 11a engages with the mounting hole 21. The middle part of the first mounting post 11a is inserted into the mounting hole 21, and the free end of the first mounting post 11a protrudes out of the mounting hole 21. The free end of the first mounting post 11a has a hook 111 protruding outward along its own radial direction. The diameter of the hook 111 is larger than the diameter of the mounting hole 21, so that the hook 111 can abut against the surface of the connector 2 to restrict the movement of the connector 2 in the +Z direction.

[0042] To facilitate the penetration of the first mounting post 11a through the mounting hole 21, the first mounting post 11a has a cavity along its own axial direction. The cavity extends from the connecting end of the first mounting post 11a to its free end, dividing the first mounting post 11a into two independent columns. The two columns are symmetrically arranged with the cavity as the center of symmetry. Each free end of both columns is provided with the aforementioned hook portion 111. The free ends of the two columns and the hook portions 111 can move elastically along the width direction of the cavity. When the free end of the first mounting post 11a is inserted into the mounting hole 21, the two hook portions 111 move relatively closer together, allowing them to pass smoothly through the mounting hole 21. When the free end of the first mounting post 11a exits the mounting hole 21, the two hook portions 111 move relatively away from each other and return to their original positions.

[0043] The two mounting holes 21 of the connector 2 have different shapes. Specifically, one mounting hole 21 is a circular hole, and the other mounting hole 21 is an elliptical hole. The length of the elliptical hole extends along the X-direction, and the width of the elliptical hole extends along the Y-direction. The diameter of the circular hole is equal to the width of the elliptical hole, and the circular hole has a clearance fit with the middle of the first mounting post 11a. The elliptical hole is designed to accommodate the dimensional errors of the first mounting post 11a, ensuring that the first mounting post 11a can be inserted into the corresponding mounting hole 21.

[0044] To facilitate the smooth passage of the first mounting post 11a through the circular hole, clearance surfaces 112 can be provided at both ends of the cavity of the corresponding first mounting post along its length. The clearance surfaces 112 extend from the connecting end of the first mounting post 11a to its free end, and the distance between the two clearance surfaces 112 is less than or equal to the diameter of the middle part of the first mounting post 11a.

[0045] Two fixing buckles 13 are also provided in the connector mounting position. The two fixing buckles 13 are respectively located on the outside of the two first mounting posts 11a. The two fixing buckles 13 are arranged along the X direction on the side of the base 1a near the bag body 3. The fixing buckles 13 extend along the Z direction. The buckling parts of the fixing buckles 13 are arranged opposite each other. The fixing buckles 13 are engaged with the edge of the connector 2 to restrict the movement of the connector 2 along the +Z direction.

[0046] exist Figure 3 In the design, the base 1a has a groove 14 and a chip mounting position 15 at one end in the X direction. The groove 14 extends along the Y direction, and the two side walls of the groove 14 are smoothly formed. A guide portion 141 is provided at the front end of each side wall of the groove 14. The guide portion 141 is an arc surface extending from the opening of the groove 14 into the groove 14. The bottom of the groove 14 has a slope 142, and the chip mounting position 15 is located on the slope 142.

[0047] The chip mounting position 15 includes a stepped groove 151, a through hole 152, and two limiting protrusions 153. The stepped groove 151 is recessed into the inclined surface 142, and the bottom of the stepped groove 151 is parallel to the inclined surface 142. The through hole 152 penetrates the middle of the bottom of the stepped groove 151. The two limiting protrusions 153 are respectively disposed on both sides of the through hole 152. The limiting protrusions 153 protrude from the bottom of the stepped groove 151 onto the surface of the inclined surface 142 and are used to mate with the through hole of the chip. One of the limiting protrusions 153 is an elliptical cylinder, and the other limiting protrusion 153 is a wedge. On the projection surface of the inclined surface 142, the projection of the elliptical cylinder falls into the through hole 152, and the projection of the wedge falls outside the through hole 152.

[0048] Combination Figure 4 and Figure 5 The connector 2 has mounting grooves 16 on both sides of the through hole 10, which extend along the Z direction and have their openings facing the +Z direction. The connector 2 has bent portions 22 on both sides of the liquid discharge channel 20, which extend along the -Z direction and are inserted into the corresponding mounting grooves 16.

[0049] Combination Figure 4 and Figure 6 The connector mounting position has two protrusions 17 on the rear side of each first mounting post 11a, with a safe distance between the two protrusions 17 to form a passageway that extends along the Y direction. The connector 2 also has a rib plate 23 on the outside of each mounting hole 21. The first end of the rib plate 23 is connected to the convex wall of the mounting hole 21, and the second end of the rib plate 23 is connected to the end of the bag body 3. The rib plate 23 is at least partially embedded in the passageway.

[0050] Ink bag example 2:

[0051] See Figures 7 to 9 and combined Figure 5 and Figure 6 Based on the principle and structure of the ink bag embodiment one above, the connector and bag body of this embodiment two are the same as those of the connector and bag body of the ink bag embodiment one, and will not be described again here. This example mainly modifies the connector mounting position of the base 1b.

[0052] In this embodiment, one end of the connector 2 is located within the connector mounting position. A welding portion 24 is provided at the end of the connector 2 near the bag body 3. The cross-sectional shape of the welding portion 24 matches the cross-sectional shape of the bag body 3. The welding portion 24 is located outside the base 1b. Compared to a conventional base, the maximum distance of the base 1b in the Y direction in this embodiment is shorter. That is, the dimensions of the base 1b in the Y direction are reduced, decreasing the volume of the base 1b and thus saving raw materials.

[0053] In this embodiment, the limiting structure is set within the connector mounting position, and the first mounting post 11b is fixedly connected to the mounting hole 21. Specifically, the middle part of the first mounting post 11b is inserted into the mounting hole 21, and the free end of the first mounting post 11b protrudes out of the mounting hole 21. The first mounting post 11b is welded and fixed to the mounting hole 21. After welding, a protruding ring 113 is formed at the free end of the first mounting post 11b. The protruding ring 113 extends circumferentially along the first mounting post 11b, and the outer diameter of the protruding ring 113 is larger than the diameter of the mounting hole 21. The protruding ring 113 is adjacent to the surface of the connector 2 to restrict the movement of the connector 2 in the +Z direction.

[0054] In this embodiment, the diameters of the middle parts of the two first mounting posts 11b are equal, and the two first mounting posts 11b can be solid posts or hollow posts.

[0055] Example 3:

[0056] See Figures 10 to 15 Based on the principle and structure of the ink bag embodiment one described above, the connector and bag body of this embodiment are the same as those of the connector and bag body of the ink bag embodiment one, and will not be described again here. The ink bag of this embodiment also includes an upper cover 4, a base 1c, and an upper cover 4 arranged opposite each other along the Z-direction. The connector 2 is located between the upper cover 4 and the base 1c, and a welding part 24 is provided at the end of the connector 2 near the bag body 3. The cross-sectional shape of the welding part 24 matches the cross-sectional shape of the bag body 3. The welding part 24 is located outside the upper cover 4 and the base 1c, and the sides of the upper cover 4 and the base 1c near the bag body 3 are flush. Compared with the traditional base 1c and upper cover 4, the maximum distance of the base 1c in the Y-direction is shorter. In this embodiment, the dimensions of both the base 1c and the upper cover 4 in the Y-direction are reduced, and the volume of both the base 1c and the upper cover 4 is reduced, which helps to save raw materials.

[0057] The ink bag is mounted on the base 5, which is a cuboid with an internal mounting cavity 51. Arc-shaped limiting parts 52 are provided on both side walls of the mounting cavity 51, facing each other along the X-direction. The arc-shaped limiting parts 52 are semi-circular. The base 1c and the top cover 4 each have arc-shaped mating parts 18 that mate with the arc-shaped limiting parts 52. The arc-shaped mating parts 18 are quarter-arcs, and the arc-shaped limiting parts 52 and the arc-shaped mating parts 18 have a concave-convex fit. A clearance hole is provided at the first end of the base 5. The base 1c is positioned between the arc-shaped limiting parts 52 and the first end of the base 5, and the through hole 10 of the base 1c is located within and communicates with the clearance hole.

[0058] The limiting structure in this embodiment is located outside the connector mounting position, specifically:

[0059] In this embodiment, the base 1c has two first mounting posts 11c within the connector mounting position. The first mounting posts 11c can be solid or hollow. The base 1c also has a first slot 191, a second slot 192, a third slot 193, and a fourth slot 194 on the outer side of the connector mounting position. The first slot 191 and the second slot 192 are located on the first outer side of the connector mounting position, and are staggered along the Y-direction. The third slot 193 and the fourth slot 194 are located on the second outer side of the connector mounting position, and are staggered along the Y-direction.

[0060] The upper cover 4 is provided with two second mounting posts 41, which are arranged one-to-one with the first mounting posts 11c. The diameter of the second mounting posts 41 is equal to that of the first mounting posts 11c. The first mounting posts 11c and the second mounting posts 41 are both inserted into the mounting holes 21, and the free ends of the first mounting posts 11c and the second mounting posts 41 are both inserted into the mounting holes 21. The cooperation between the upper cover 4 and the base 1c restricts the movement of the connector 2 in the Z direction.

[0061] The upper cover 4 is provided with a first hook 42, a second hook 43, a third hook 44, and a fourth hook 45. All four hooks extend along the Z-direction. The first hook 42 engages with the first slot 191, the second hook 43 engages with the second slot 192, the third hook 44 engages with the third slot 193, and the fourth hook 45 engages with the fourth slot 194. The cooperation of the first mounting post 11c and the second mounting post 41, along with the engagement of the hooks and slots, forms a limiting structure, ensuring a secure connection between the upper cover 4 and the base 1c.

[0062] Compared with the conventional base 1c and top cover 4, this embodiment has at least one hook and slot provided on the end near one end of the bag body 3. Specifically, the base 1c has an "L"-shaped protrusion 195 at the end near the bag body 3. The protrusion 195 is located outside the connector mounting position, extends along the Z direction, and a first slot 191 is formed in the middle of the protrusion 195 along the Y direction.

[0063] The top cover 4 is provided with a first hook 42 at one end near the bag body 3. The hook part 111 of the first hook 42 faces the side of the bag body 3. The first hook 42 is located on one side of the protrusion 195. The hook part 111 of the first hook 42 is inserted into the first slot 191 and abuts against the slot wall of the first slot 191, so that the first hook 42 is engaged with the first slot 191.

[0064] In this embodiment, the second slot 192 is located on the side of the protrusion 195 away from the connector mounting position, the third slot 193 is located on the radial outer side of the perforation 10, and the fourth slot 194 is located on the end near the bag body 3; the hooks of the upper cover 4 are respectively provided. In this embodiment, by reasonably arranging the positions of each slot and hook, all parts of the base 1c and the upper cover 4 can be reliably connected.

[0065] Inkjet printing system example:

[0066] The inkjet printing system of this example includes a printing device and an ink bag containing ink or pigment, as described in any of the above embodiments.

[0067] In summary, this invention achieves the connection between the base and the connector through the cooperation of the first mounting post and the mounting hole, thereby restricting the movement of the connector in the vertical Z-axis plane. By setting a limiting structure to restrict the movement of the connector in the Z-axis, a fixed connection between the base and the connector is achieved. One end of the connector protrudes beyond the base, meaning that compared with the traditional base, the size of the base in the Y-axis is reduced, which helps to save raw material usage. While firmly fixing the connector and the bag body, this invention has the advantage of saving raw materials. Compared with the traditional ink bag, it eliminates the need for a top cover, which also helps to reduce production molds, save raw materials, and lower production costs.

[0068] Finally, it should be emphasized that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An ink bag, comprising a base, a connector, and a bag body, wherein the two ends of the connector are respectively connected to the base and the bag body, the connector is provided with a liquid discharge channel, and the base extends along the Y direction with a perforation, the liquid discharge channel communicating with the interior of the bag body and the perforation, characterized in that: The base is provided with a connector mounting position at one end of the perforation extension direction. Two first mounting posts are provided in the connector mounting position. The two first mounting posts are respectively provided on both sides of the perforation radially. The first mounting posts extend along the Z direction. One end of the connector is disposed in the connector mounting position, and the other end of the connector protrudes from the base. The connector is provided with mounting holes on both sides of the liquid discharge channel, and the mounting holes are connected to the first mounting post. The base is also provided with a limiting structure for preventing the connector from separating from the connector mounting position along the Z direction; The limiting structure is disposed within the connector mounting position; The first mounting post engages with the mounting hole; the middle part of the first mounting post is inserted into the mounting hole, the free end of the first mounting post protrudes out of the mounting hole, and the free end of the first mounting post is provided with a hook portion protruding radially outward, the hook portion being adjacent to the surface of the connector.

2. The ink bag according to claim 1, characterized in that: The first mounting post has a cavity along its own axial direction, and the free end of the first mounting post and the hook portion can move elastically along the width direction of the cavity.

3. The ink bag according to claim 1, characterized in that: The connector mounting position is also provided with two fixing buckles. The two fixing buckles are respectively located on the outside of the two first mounting posts. The fixing buckles extend along the Z direction and engage with the connector.

4. The ink bag according to any one of claims 1 to 3, characterized in that: The base has a groove and a chip mounting position at one end in the X direction. The groove extends along the Y direction. Guide parts are provided on both sides of the groove wall. An inclined surface is provided at the bottom of the groove. The chip mounting position is located on the inclined surface. The chip mounting position includes a stepped groove, a through hole, and two limiting protrusions. The stepped groove is recessed in the inclined surface, the through hole penetrates the middle of the bottom of the stepped groove, and the two limiting protrusions are respectively disposed on both sides of the through hole. The limiting protrusions protrude from the bottom of the stepped groove onto the surface of the inclined surface.

5. An ink bag, comprising a base, a connector, and a bag body, wherein the two ends of the connector are respectively connected to the base and the bag body, the connector is provided with a liquid discharge channel, and the base extends along the Y direction with a perforation, the liquid discharge channel communicating with the interior of the bag body and the perforation, characterized in that: The base is provided with a connector mounting position at one end of the perforation extension direction. Two first mounting posts are provided in the connector mounting position. The two first mounting posts are respectively provided on both sides of the perforation radially. The first mounting posts extend along the Z direction. One end of the connector is disposed in the connector mounting position, and the other end of the connector protrudes from the base. The connector is provided with mounting holes on both sides of the liquid discharge channel, and the mounting holes are connected to the first mounting post. The base is also provided with a limiting structure for preventing the connector from separating from the connector mounting position along the Z direction; The limiting structure is disposed within the connector mounting position; The first mounting post is fixedly connected to the mounting hole; the middle part of the first mounting post is inserted into the mounting hole, the free end of the first mounting post protrudes out of the mounting hole, and the first mounting post is welded and fixed to the mounting hole, so that the free end of the first mounting post protrudes to form a convex ring, the convex ring extends along the circumference of the first mounting post, and the convex ring is adjacent to the surface of the connector.

6. The ink bag according to claim 5, characterized in that: The base has a groove and a chip mounting position at one end in the X direction. The groove extends along the Y direction. Guide parts are provided on both sides of the groove wall. An inclined surface is provided at the bottom of the groove. The chip mounting position is located on the inclined surface. The chip mounting position includes a stepped groove, a through hole, and two limiting protrusions. The stepped groove is recessed in the inclined surface, the through hole penetrates the middle of the bottom of the stepped groove, and the two limiting protrusions are respectively disposed on both sides of the through hole. The limiting protrusions protrude from the bottom of the stepped groove onto the surface of the inclined surface.

7. An ink bag, comprising a base, a connector, and a bag body, wherein the two ends of the connector are respectively connected to the base and the bag body, the connector is provided with a liquid discharge channel, and the base extends along the Y direction with a perforation, the liquid discharge channel communicating with the interior of the bag body and the perforation, characterized in that: The base is provided with a connector mounting position at one end of the perforation extension direction. Two first mounting posts are provided in the connector mounting position. The two first mounting posts are respectively provided on both sides of the perforation radially. The first mounting posts extend along the Z direction. One end of the connector is disposed in the connector mounting position, and the other end of the connector protrudes from the base. The connector is provided with mounting holes on both sides of the liquid discharge channel, and the mounting holes are connected to the first mounting post. The base is also provided with a limiting structure for preventing the connector from separating from the connector mounting position along the Z direction; The limiting structure is located outside the connector mounting position; The ink bag also includes a top cover, which is disposed opposite to the base. The connector is disposed between the top cover and the base, with one end of the connector near the bag body exposed outside the top cover and the base. The top cover is provided with two second mounting posts, which are disposed corresponding to the first mounting posts. Both the first mounting posts and the second mounting posts are inserted into the mounting holes. The base is provided with slots on both sides of the connector mounting position, and the top cover is provided with hooks corresponding to the slots. The hooks extend along the Z direction and engage with the slots.

8. The ink bag according to claim 7, characterized in that: The base is provided with a protrusion, a first slot and a second slot on the first outer side of the connector mounting position. The protrusion is located on one end close to the bag body and extends along the Z direction. The first slot passes through the middle of the protrusion along the Y direction. The second slot is located on the side of the protrusion away from the connector mounting position. The base is provided with a third slot and a fourth slot on the second outer side of the connector mounting position. The fourth slot is provided on one end close to the bag body. The third slot and the fourth slot are offset along the Y direction. The upper cover is provided with a first hook, a second hook, a third hook and a fourth hook. The first hook engages with the first slot, the second hook engages with the second slot, the third hook engages with the third slot, and the fourth hook engages with the fourth slot.

9. The ink bag according to claim 7 or 8, characterized in that: The base has a groove and a chip mounting position at one end in the X direction. The groove extends along the Y direction. Guide parts are provided on both sides of the groove wall. An inclined surface is provided at the bottom of the groove. The chip mounting position is located on the inclined surface. The chip mounting position includes a stepped groove, a through hole, and two limiting protrusions. The stepped groove is recessed in the inclined surface, the through hole penetrates the middle of the bottom of the stepped groove, and the two limiting protrusions are respectively disposed on both sides of the through hole. The limiting protrusions protrude from the bottom of the stepped groove onto the surface of the inclined surface.

10. An inkjet printing system, characterized in that: It includes a printing apparatus and an ink bag as described in any one of claims 1 to 9.

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