Ink pad oil injection connector, ink pad oil injection connection structure and cigarette making machine

Abstract

The application relates to an ink paste oil injection connector, an ink paste oil injection connecting structure and a cigarette making machine. The ink paste oil injection connector comprises a connecting body and a movable body movably connected with the connecting body. The connecting body is provided with a first interface for being communicated with an oil injection nozzle and a second interface for being communicated with a conveying pipe. The movable body can be switched between a communication state and a disconnection state relative to the connecting body. In the communication state, the first interface is communicated with the second interface. In the disconnection state, the first interface is disconnected from the second interface. The ink paste oil injection connector is adapted to be connected between the oil injection nozzle and the conveying pipe. The ink paste flow between the oil injection nozzle and the conveying pipe can be switched by the movable body moving relative to the connecting body, so that the ink paste backflow phenomenon can be avoided, the air bubbles in the ink paste can be reduced, the sometimes-no printing of the cigarette tin foil can be reduced, and the appearance quality of the cigarette can be ensured.

Description

Technical Field

[0001] This application relates to the field of cigarette machinery technology, and in particular to an ink paste injection connector, an ink paste injection connection structure, and a cigarette machine. Background Technology

[0002] In the cigarette production process, the integrity and clarity of the cigarette brand and vehicle number stamps are among the core assessment indicators of cigarette appearance quality, directly affecting product appearance consistency and market acceptance. The printing process is as follows: first, ink is sprayed onto the stamped surface through the cigarette machine's ink supply module; then, the inked stamp is used to roll the cigarette to complete the marking. The ink is injected into the cigarette machine's ink filling nozzle through the ink filling cart's output interface, and then guided by the nozzle's connecting block into an ink storage tank. When needed, a metering pump delivers the ink from the tank to the designated spraying position on the stamping roller.

[0003] However, under existing technical solutions, the printing defects of the cigarette stamp frequently occur, resulting in a large number of defective products. This not only seriously affects the stability of product quality but also increases production losses and rework costs, adversely impacting cigarette production efficiency and product market competitiveness. Therefore, it is urgent to solve this problem of unstable stamp printing. Utility Model Content

[0004] Based on this, this application provides an ink filling connector, which is adapted to be connected between the ink nozzle and the delivery pipe to reduce the intermittent occurrence of the cigarette stamp.

[0005] This application provides a paste filling connector, including a connecting body and a movable body movably connected to the connecting body. The connecting body has a first interface for communicating with a filling nozzle and a second interface for communicating with a delivery pipe. The movable body can switch between a connected state and a disconnected state relative to the connecting body. In the connected state, the first interface and the second interface are connected; in the disconnected state, the first interface and the second interface are separated. The paste flow path from the first interface to the second interface exhibits a state where the paste flow cross-section first decreases and then increases.

[0006] In one embodiment, the connection body is provided with a first channel connecting the first interface and the second interface, and in the disconnected state, the movable body isolates the first channel.

[0007] In one embodiment, the movable body is at least partially inserted through the first channel, and the portion of the movable body inserted through the first channel is provided with a through second channel. In the connected state, both ends of the second channel are connected to the first channel, and in the disconnected state, both ends of the second channel are separated from the first channel.

[0008] In one embodiment, the movable body is rotatably connected to the connecting body.

[0009] In one embodiment, the connecting body is provided with a through mounting hole that intersects with the first channel, a portion of the movable body is detachably rotatably mounted in the mounting hole, and a handle is provided on the portion of the movable body outside the mounting hole;

[0010] One end of the movable body is provided with a limiting part to restrict the movement of the movable body along the axial direction of the assembly hole, and the other end of the movable body is provided with a retaining spring. The limiting part and the retaining spring are located on both sides of the axial direction of the assembly hole.

[0011] In one embodiment, the connecting body has at least one connecting portion for fixing an external structure, the connecting portion including a connecting shaft and / or a connecting hole.

[0012] This application also provides a paste filling connection structure, including a filling nozzle, a delivery pipe, and a paste filling connector as described above, wherein the filling nozzle is connected to the first interface, and the delivery pipe is connected to the second interface.

[0013] In one embodiment, the system further includes a connector that is detachably connected to the connector body. The connector has a third channel, one end of which is connected to the first interface and the other end of which is connected to the oil nozzle. The oil nozzle is detachably connected to the connector.

[0014] In one embodiment, a tail tube detachably connected to the connecting body is also included. The tail tube has a fourth channel, one end of which is connected to the second interface and the other end of which is connected to the delivery tube. The delivery tube is detachably connected to the tail tube.

[0015] This application also provides a cigarette making machine, including the ink paste injection connection structure described above.

[0016] Compared with the prior art, the ink filling connector provided in this application is adapted to connect between the ink filling nozzle and the delivery pipe. First, the movement of the movable body relative to the connecting body realizes the switching of ink flow between the ink filling nozzle and the delivery pipe, avoiding ink backflow and reducing the generation of air bubbles in the ink. In addition, the cross-section of the ink flow path first decreases and then increases. During the process of decreasing cross-section, the ink flow velocity increases to promote the delivery of ink with a decreasing flow velocity in the later stage. During the process of increasing cross-section, the ink flow velocity slows down, suppressing the generation of air bubbles in the ink, thereby reducing the intermittent presence of the cigarette stamp and ensuring the appearance quality of the cigarette. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of an ink paste filling connector according to an embodiment of this application;

[0019] Figure 2 This is a perspective view of a paste filling connector according to an embodiment of this application from another angle;

[0020] Figure 3 This is an exploded perspective view of an ink paste filling connector according to an embodiment of this application;

[0021] Figure 4 A cross-sectional view of the first channel is shown for an embodiment of the ink paste filling connector of this application;

[0022] Figure 5 This is a top sectional view of a paste filling connector according to an embodiment of this application, in a connected state at the second channel;

[0023] Figure 6 This is a top sectional view of the ink paste filling connector in the second channel in the disconnected state according to an embodiment of this application.

[0024] Figure 7 A cross-sectional view of the connection hole is shown for an embodiment of the ink paste filling connector of this application;

[0025] Figure 8 This is a side view of an embodiment of the ink paste filling connector, which is fixedly connected to an external structure via a connecting portion.

[0026] Figure 9 This is a perspective view of the ink paste injection connection structure according to an embodiment of this application;

[0027] Figure 10 This is an exploded perspective view of the ink paste injection connection structure according to an embodiment of this application;

[0028] Figure 11 This is an exploded perspective view of the ink paste injection connection structure according to an embodiment of this application.

[0029] Reference numerals: 10, connecting body; 10a, first part; 10b, second part; 11, first interface; 12, second interface; 13, first channel; 14, assembly hole; 15, connecting part; 151, connecting shaft; 152, connecting hole; 20, movable body; 21, second channel; 22, handle; 23, limiting part; 24, snap ring; 25, shaft part; 26, mounting groove; 27, reserved hole; 30, oil nozzle; 40, delivery pipe; 50, connecting seat; 51, third channel; 60, tail pipe; 61, fourth channel; 70, screw; 80, clearance area. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," "side," "top," "bottom," and similar expressions used in this application's specification are merely for describing various exemplary structural parts and elements of this application. However, their use herein is for illustrative purposes only and is determined based on the exemplary orientations shown in the accompanying drawings, and does not represent the only possible implementation. Since the embodiments disclosed in this application can be arranged in different orientations, these terms indicating orientation are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that "axial arrangement" means that the overall arrangement direction is along the axial direction, including but not limited to axial extension, and may be at an angle to the axial direction.

[0035] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0036] In the embossed printing process of cigarettes, air bubbles in the ink paste are a significant factor affecting the printing quality. Furthermore, a large number of air bubbles in the ink paste can result in intermittent embossed printing on the cigarettes, severely impacting the overall printing quality. This application provides an ink paste filling connector designed to improve the embossed printing quality of cigarettes by reducing the number of air bubbles generated during ink paste delivery.

[0037] Please see Figure 1 and Figure 2 This application provides a paste filling connector, including a connecting body 10 and a movable body 20. The movable body 20 is movably connected to the connecting body 10 and can switch between a connected state and a disconnected state relative to the connecting body 10. The connecting body 10 has a first interface 11 and a second interface 12. In the connected state, the first interface 11 and the second interface 12 are connected; in the disconnected state, the first interface 11 and the second interface 12 are separated.

[0038] Specifically, the first interface 11 of the connecting body 10 is used to connect to the ink nozzle 30, and the second interface 12 is used to connect to the delivery tube 40. The ink delivery path is ink nozzle 30 → connecting body 10 → delivery tube 40. The movement of the movable body 20 relative to the connecting body 10 switches the on / off state between the first interface 11 and the second interface 12, thereby controlling the ink delivery between the ink nozzle 30 and the delivery tube 40. When there is no ink input in the ink nozzle 30, the movable body 20 switches the state to the off state, preventing ink from flowing back into the ink nozzle 30 from the delivery tube 40, thus reducing the amount of air bubbles generated in the ink nozzle 30 during the next ink input, which would affect the printing quality of the steel stamp.

[0039] Furthermore, along the ink paste flow path from the first interface 11 to the second interface 12, the ink paste flow cross-section first decreases and then increases. This design, where the flow cross-section first decreases and then increases, causes the ink paste flow velocity to first increase and then decrease. The initial increase in ink paste velocity propels the ink paste, even as its flow velocity decreases later, to continue forward, preventing stagnation. Conversely, the decreased flow velocity in the later stages suppresses the formation of air bubbles in the ink paste, thereby improving the quality of steel stamp printing.

[0040] In some embodiments of this application, see Figure 3 and Figure 4 The connecting body 10 is provided with a first channel 13 connecting the first interface 11 and the second interface 12. In the disconnected state, the movable body 20 isolates the first channel 13, thereby achieving the purpose of isolating the first interface 11 and the second interface 12. It can be understood that the arrangement of the first channel 13 avoids the movable body 20 directly isolating the first interface 11 or the second interface 12, thereby avoiding interference between the movable body 20 and the oil nozzle 30 or the delivery pipe 40. Specifically, the first interface 11 and the second interface 12 need to be connected to the oil nozzle 30 and the delivery pipe 40 respectively, and the first channel 13 connects the first interface 11 and the second interface 12, providing operating space for the movable body 20 to perform isolation operations.

[0041] Furthermore, the ink paste flow cross-section first decreases and then increases in size, which can be observed at the interface between the first interface 11 and the first channel 13, and at the interface between the second channel 13 and the second interface 12. Specifically, the diameters of both the first interface 11 and the second interface 12 are larger than the diameter of the first channel 13. With this design, both the first interface 11 and the second interface 12 can be designed as cylindrical interfaces to facilitate the connection between the first interface 11 and the ink nozzle 30, and to facilitate the connection between the second interface 12 and the delivery pipe 40.

[0042] Generally, the first channel 13 is a straight path connecting the first interface 11 and the second interface 12, thereby enabling the ink paste to be transported from the nozzle 30 to the delivery tube 40 with the shortest possible transport distance, ensuring the ink paste transport efficiency. Of course, the extension path of the first channel 13 can also be set according to the actual ink paste transport path. For example, if the first interface 11 and the second interface 12 are not on the same straight line along the ink paste transport direction, the first channel 13 can use a curved path to connect the first interface 11 and the second interface 12. Alternatively, if the first interface 11 and the second interface 12 are on the same straight line in the ink paste transport direction, but the straight-line distance between the first interface 11 and the second interface 12 is short, and the straight-line first channel 13 cannot provide sufficient isolation operating space for the movable body 20, the first channel 13 can also bend to the side to provide sufficient isolation operating space for the movable body 20.

[0043] In some embodiments of this application, the movable body 20 is at least partially inserted through the first channel 13. The portion of the movable body 20 inserted through the first channel 13 has a through second channel 21. In the connected state, both ends of the second channel 21 are connected to the first channel 13; in the disconnected state, both ends of the second channel 21 are separated from the first channel 13. It should be noted that during the ink paste delivery between the ink nozzle 30 and the delivery pipe 40, ink paste backflow or residue from the previous delivery process may cause air bubbles during the next ink paste delivery, ultimately affecting the quality of the steel stamp printing. It is understood that when one end of the second channel 21 is separated from the first channel 13 while the other end remains connected in the disconnected state, although the separation requirement is met, ink paste from the previous delivery process will remain in the second channel 21, affecting the quality of the next ink paste delivery and the steel stamp printing. In this embodiment, in the disconnected state, it is necessary to ensure that both ends of the second channel 21 are separated from the first channel 13 to reduce ink paste residue in the second channel 21.

[0044] In some embodiments of this application, see Figure 5 and Figure 6The movable body 20 is rotatably connected to the connecting body 10. Specifically, the movable body 20 and the connecting body 10 are connected by a rotatable engagement, and the second channel 21 provided on the movable body 20 is rotated by rotating the movable body 20. When the second channel 21 is connected to the first channel 13, the second channel 21 and the first channel 13 are basically collinear; when the second channel 21 is separated from the first channel 13, the second channel 21 and the first channel 13 intersect. Preferably, in the connected state, the second channel 21 and the first channel 13 are collinear; in the disconnected state, the second channel 21 and the first channel 13 are perpendicular. At this time, when the movable body 20 rotates relative to the connecting body 10 and switches between the connected state and the disconnected state, the rotation angle of the movable body 20 is ninety degrees, which also facilitates the rotation control of the movable body 20.

[0045] Alternatively, the movable body 20 can also use other movement methods to realize the switching between the second channel 21 and the first channel 13. For example, the movable body 20 can slide relative to the connecting body 10, so that the second channel 21 moves along the direction perpendicular to the extension of the first channel 13, thereby realizing the switching between the second channel 21 and the first channel 13.

[0046] In some embodiments of this application, see Figure 3 and Figure 4The connecting body 10 has a through mounting hole 14, which intersects with the first channel 13. A portion of the movable body 20 is detachably and rotatably installed in the mounting hole 14. A handle 22 is provided on the portion of the movable body 20 outside the mounting hole 14. One end of the movable body 20 has a limiting part 23 that restricts its axial movement along the mounting hole 14, and the other end has a retaining spring 24. The limiting part 23 and the retaining spring 24 are located on opposite sides of the axial direction of the mounting hole 14. It is understood that in this embodiment, the movable body 20 is detachably connected along the axial direction of the mounting hole 14, and after being installed in the mounting hole 14, it can rotate relative to the connecting body 10 to switch the second channel 21 on / off with the first channel 13. The handle 22 facilitates manual rotation of the movable body 20. When the movable body 20 is removed from or installed through the mounting hole 14, the handle 22 is also easy to hold and disassemble. A pre-drilled hole 27 can also be provided on the movable body 20 for detachable installation of the handle 22. The limiting part 23 and the retaining ring 24 are provided to fix the movable body 20 along the axial direction of the mounting hole 14, preventing the movable body 20 from displacing along the axial direction of the mounting hole 14 during rotation. Specifically, if the movable body 20 displaces along the axial direction of the mounting hole 14 during rotation, the second channel 21 and the first channel 13, which should be connected in the same line, will be misaligned and disconnected due to the displacement of the movable body 20. In summary, the limiting part 23 and the retaining ring 24 improve the structural stability of the movable body 20 and the reliability of the switching between the second channel 21 and the first channel 13.

[0047] In this embodiment, the movable body 20 is generally stepped shaft-shaped, including a shaft body 25 and a limiting part located at one end of the shaft body 25. The part that rotatably engages with the connecting body 10 is the shaft body 25, and the limiting part 23 has a diameter larger than the shaft body 25. The junction of the limiting part 23 and the shaft body 25 can abut against the outer surface of the connecting body 10 to achieve limiting. The side of the shaft body 25 away from the limiting part 23 extends out through the mounting hole 14, and a mounting groove 26 is provided on the protruding part for mounting the retaining ring 24.

[0048] In some embodiments of this application, see Figure 7 and Figure 8 The connecting body 10 has at least one connecting portion 15 for fixing the external structure. The connecting portion 15 includes a connecting shaft 151 and / or a connecting hole 152. Specifically, the connecting portion 15 may adopt a connecting shaft 151 for plug-in mating, a connecting hole 152, and a threaded hole for connecting screws 70. The connection style of the connecting portion 15 can be selected according to the actual installation requirements.

[0049] More preferably, the connecting body 10 includes a first part 10a and a second part 10b, which can be integrally formed, and the volume of the second part 10b is larger than the volume of the first part 10a. The movable body 20 is movably connected to the first part 10a, and the connecting portion 15 is provided in the second part 10b. After the connecting body 10 is fixed to the external structure, a clearance area 80 can be formed between the smaller first part 10a and the external structure to accommodate the movable body 20.

[0050] In one embodiment of this application, the connecting body 10 is made of aluminum alloy, the first channel 13 has a diameter of 10 mm, and the first interface 11 and the second interface 12 are threaded holes with a diameter of 10 mm. The movable body 20 is made of iron, the shaft portion 25 is an 8 mm cylinder that passes through the mounting hole 14, and the second channel 21 is a 4.5 mm through hole provided in the shaft portion 25. The connecting portion 15 includes two cylindrical pins with a diameter of 5 mm and a height of 3.6 mm to facilitate insertion and mating with external structures.

[0051] This application also provides a paste injection connection structure, see [link to relevant documentation]. Figures 9 to 11 It includes an ink nozzle 30, a delivery pipe 40, and an ink filling connector according to any of the above embodiments. The ink nozzle 30 is connected to the first interface 11, and the delivery pipe 40 is connected to the second interface 12. The ink is delivered along the delivery path of the ink nozzle 30, the connecting body 10, and the delivery pipe 40. This delivery direction is defined as the X direction. In this embodiment, the X direction is a straight delivery direction.

[0052] In one embodiment of this application, the ink nozzle 30 is made of brass and has a conical shape that matches the spherical end of the ink gun.

[0053] In a further embodiment, the ink filling connection structure also includes a connector 50 detachably connected to the connector body 10. The connector 50 has a third channel 51, one end of which connects to the first interface 11, and the other end connects to the ink nozzle 30. The ink nozzle 30 is detachably connected to the connector 50. Since the ink nozzles 30 have different specifications and styles, different styles of ink nozzles 30 cannot be fully adapted to the first interface 11 of the connector body 10. The connector 50 solves this adaptation problem. Specifically, the connectors 50 also have different specifications and styles, but all connectors 50 have the same style for connecting to the connector body 10. The main difference between different styles of connectors 50 is that the part used to connect to the ink nozzle 30 needs to be adapted to the corresponding ink nozzle 30. It is understood that when the ink nozzle 30 needs to be replaced, the different connectors 50 need to be replaced simultaneously, without needing to replace the connector body 10.

[0054] Similarly, the ink filling connection structure also includes a tail tube 60 detachably connected to the connecting body 10. The tail tube 60 has a fourth channel 61, one end of which connects to the second interface 12, and the other end connects to the delivery pipe 40. The delivery pipe 40 and the tail tube 60 are detachably connected. The connection portion 15 of the tail tube 60 and the connecting seat 50 are identical in style, and the connection portion 15 of the tail tube 60 and the delivery pipe 40 is adapted to the corresponding style of the delivery pipe 40. When it is necessary to replace a different style of delivery pipe 40, the different tail tubes 60 need to be replaced simultaneously, without needing to replace the connecting body 10.

[0055] Specifically, in one embodiment of this application, the tail end of the oil nozzle 30 adopts an M8 thread. One end of the connecting seat 50, which connects to the oil nozzle 30, has an internal thread with a diameter of 8mm for connecting the oil nozzle 30, and an external thread with a diameter of 22mm is provided on the periphery of this end. The other end of the connecting seat 50 has an external thread with a diameter of 10mm and is adapted to the first interface 11. One end of the tail tube 60 has an external thread with a diameter of 10mm and is adapted to the second interface 12. The interior of the tail tube 60 is a fourth channel 61 with a diameter of 4.5mm.

[0056] This application also provides a cigarette rolling machine, including the ink paste injection connection structure as described in any of the above embodiments, to improve the printing quality of cigarette steel stamps.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A paste filling connector, characterized in that, The device includes a connecting body (10) and a movable body (20) movably connected to the connecting body (10). The connecting body (10) has a first interface (11) for communicating with an oil nozzle (30) and a second interface (12) for communicating with a delivery pipe (40). The movable body (20) is capable of switching between a connected state and a disconnected state relative to the connecting body (10). In the connected state, the first interface (11) is connected to the second interface (12); in the disconnected state, the first interface (11) is separated from the second interface (12). In the ink flow path from the first interface (11) to the second interface (12), the ink flow cross section first decreases and then increases.

2. The ink paste filling connector according to claim 1, characterized in that, The connecting body (10) is provided with a first channel (13) connecting the first interface (11) and the second interface (12). In the disconnected state, the movable body (20) isolates the first channel (13).

3. The ink paste filling connector according to claim 2, characterized in that, The movable body (20) is at least partially inserted through the first channel (13). The part of the movable body (20) inserted through the first channel (13) is provided with a through second channel (21). In the connected state, both ends of the second channel (21) are connected to the first channel (13). In the disconnected state, both ends of the second channel (21) are separated from the first channel (13).

4. The ink paste filling connector according to claim 3, characterized in that, The movable body (20) is rotatably connected to the connecting body (10).

5. The ink paste filling connector according to claim 4, characterized in that, The connecting body (10) is provided with a through mounting hole (14), which intersects with the first channel (13). A portion of the movable body (20) is detachably rotatably installed in the mounting hole (14), and a handle (22) is provided on the portion of the movable body (20) outside the mounting hole (14). One end of the movable body (20) is provided with a limiting part (23) to restrict the movement of the movable body (20) along the axial direction of the assembly hole (14), and the other end of the movable body (20) is provided with a retaining ring (24). The limiting part (23) and the retaining ring (24) are located on both sides of the axial direction of the assembly hole (14).

6. The ink paste filling connector according to any one of claims 1 to 5, characterized in that, The connecting body (10) has at least one connecting part (15) for fixing the external structure, the connecting part (15) including a connecting shaft (151) and / or a connecting hole (152).

7. A paste filling connection structure, characterized in that, It includes an ink nozzle (30), a delivery pipe (40), and an ink filling connector as described in any one of claims 1 to 6, wherein the ink nozzle (30) is connected to the first interface (11), and the delivery pipe (40) is connected to the second interface (12).

8. The ink paste injection connection structure according to claim 7, characterized in that, It also includes a connector (50) that is detachably connected to the connector body (10), the connector (50) having a third channel (51), one end of the third channel (51) being connected to the first interface (11) and the other end being connected to the oil nozzle (30), the oil nozzle (30) being detachably connected to the connector (50).

9. The ink paste injection connection structure according to claim 7, characterized in that, It also includes a tail tube (60) detachably connected to the connecting body (10), the tail tube (60) having a fourth channel (61), one end of the fourth channel (61) being connected to the second interface (12) and the other end being connected to the delivery pipe (40), the delivery pipe (40) being detachably connected to the tail tube (60).

10. A cigarette rolling machine, characterized in that, It includes the ink paste injection connection structure as described in any one of claims 7 to 9.

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