Split type inkjet tool

Abstract

The split type inkjet tool comprises a front section handle body assembly and a rear section handle body assembly, the front section handle body assembly comprises a front section handle body, a spray head, a spray nozzle and a spray needle, the front section handle body is provided with a front elastic component matched with the spray needle, and the front elastic component enables the spray needle to have the motion trend of opening the spray nozzle all the time. The rear-section handle body assembly comprises a rear-section handle body, an air inlet valve, a trigger and a needle rod, the front-section handle body is detachably and fixedly connected with the rear-section handle body, the front end of the needle rod abuts against the rear end of the spray needle in a matched mode, and the rear-section handle body is provided with a rear elastic component matched with the needle rod; the rear elastic component enables the spray needle to have the movement trend of overcoming the elastic force of the front elastic component to close the nozzle all the time through the needle rod. By adopting the split type structural design, when paint with different colors needs to be replaced for spray painting, the spray painting device can be used without cleaning, is convenient to operate, and is beneficial to improving the spray painting efficiency and the spray painting quality.

Description

Technical Field

[0001] This utility model relates to the field of inkjet printing tools, and in particular to a split-type inkjet printing tool. Background Technology

[0002] An airbrush is an important painting tool that sprays paint in a mist to achieve uniform color application. Its structure typically includes a brush body with an internal cavity containing a nozzle. A cup connected to the cavity holds the paint. A nozzle that mates with the nozzle is attached to the front of the brush body via a nozzle head. An air inlet valve connected to an air source is located in the middle of the brush body, with its outlet connected to the front of the nozzle head. A trigger within the cavity controls the opening and closing of the air inlet valve, and the nozzle and trigger work in tandem. In use, paint is placed in the cup. First, the trigger is pressed to open the air inlet valve, allowing compressed air to spray from the nozzle head. Simultaneously, the nozzle is moved backward, causing the paint in the cavity to flow out through the gap between the nozzle and the nozzle. The compressed air exiting near the nozzle head quickly atomizes the flowing liquid paint, achieving the atomized spraying effect.

[0003] Printing often requires the use of multiple colors of paint, meaning that users will use different colors of paint sequentially during the printing process. However, most airbrushes on the market require cleaning before changing paint colors, making the process cumbersome, time-consuming, and labor-intensive, impacting printing efficiency. Furthermore, incomplete cleaning can contaminate the paint used later, affecting the overall quality of the print. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings and deficiencies of the existing technology by providing a split-type inkjet printing tool. By adopting a split-type structural design, it can be used without cleaning when different colors of paint need to be changed for printing, making it convenient to operate and improving printing efficiency and quality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution.

[0006] A split-type inkjet printing tool includes a front handle assembly and a rear handle assembly that are compatible with each other.

[0007] The front handle assembly includes a front handle, a nozzle, a spray nozzle, and a spray needle. The nozzle and the spray nozzle are fitted together at the front end of the front handle. The front handle is provided with an air channel corresponding to the nozzle and a liquid channel corresponding to the spray nozzle. The spray needle is movably disposed in the liquid channel. The front handle is provided with a front elastic member that cooperates with the spray needle. The front elastic member ensures that the spray needle always has a tendency to open the nozzle. The front handle is also provided with a cup holder for mounting a receiving cup. The cup holder is connected to the liquid channel.

[0008] The rear handle assembly includes a rear handle, an air inlet valve, a trigger, and a needle bar. The front handle and the rear handle are detachably fixedly connected. The air inlet valve is connected to the rear handle, and its outlet communicates with the air passage. The trigger is located within the rear handle to control the opening and closing of the air inlet valve. The needle bar is movably located within the rear handle and engages with the trigger. The front end of the needle bar abuts against the rear end of the nozzle. The rear handle is provided with a rear elastic member that engages with the needle bar. The rear elastic member, through the needle bar, ensures that the nozzle always has a tendency to overcome the elastic force of the front elastic member and close the nozzle.

[0009] Furthermore, the front section of the handle is provided with a sealing member to prevent the liquid from flowing into the rear section of the handle assembly.

[0010] Furthermore, the sealing component is a sealing ring disposed within the liquid channel, and the sealing ring is sleeved between the front handle and the nozzle.

[0011] Furthermore, the rear end of the nozzle is provided with a nozzle seat that abuts against the nozzle bar, and the front elastic member is a nozzle spring that abuts against the front section of the handle and the nozzle seat. The nozzle spring, through the nozzle seat, ensures that the nozzle always has a tendency to move backward.

[0012] Furthermore, the rear end of the front handle is provided with a connecting part that extends into the rear handle body. The rear end of the connecting part is provided with an "L"-shaped connecting groove. The rear handle body is provided with a pin corresponding to the connecting groove. The front handle body and the rear handle body are detachably and fixedly connected by the pin engaging with the connecting groove.

[0013] Furthermore, a locking ring is provided in the rear section of the handle, the locking ring is engaged with the rear section of the handle to prevent rotation, and the pin is provided on the inner wall of the locking ring.

[0014] Furthermore, a limiting step and a positioning ring are respectively provided in the rear section of the handle. The limiting step is located at the front end of the locking ring, and the positioning ring is located at the rear end of the locking ring. The positioning ring is fixedly connected to the rear section of the handle. The locking ring is axially limited between the limiting step and the positioning ring, and the locking ring and the positioning ring are anti-rotationally engaged.

[0015] Furthermore, an elastic ring is provided between the locking ring and the limiting step, and the locking ring is elastically limited axially between the limiting step and the positioning ring by the elastic ring.

[0016] Furthermore, the rear end of the front section of the handle is provided with a connecting part that extends into the rear section of the handle. The outer wall of the connecting part is provided with an annular protrusion. The rear section of the handle is provided with a retaining spring corresponding to the annular protrusion. By the retaining spring cooperating with the annular protrusion, the front section of the handle and the rear section of the handle are detachably and fixedly connected.

[0017] Furthermore, the rear shank body is provided with an adjustment mechanism that cooperates with the needle bar. The adjustment mechanism includes an adjustment rod, a locking nut, and an adjustment screw. The adjustment rod is sleeved on the outside of the needle bar, and the locking nut is threaded to the tail of the adjustment rod. The locking nut is used to clamp the needle bar with the adjustment rod. The adjustment screw is sleeved on the outside of the adjustment rod and is threaded to the rear shank body. The rear elastic member is a needle bar spring that abuts against the adjustment rod and the adjustment screw. The needle bar spring, through the adjustment rod, ensures that the needle bar always has a forward movement tendency.

[0018] The beneficial effects of this utility model are as follows: Compared with the prior art, the split-type inkjet printing tool provided by this utility model integrates the printhead, nozzle, nozzle needle, and material cup holder into the front section of the handle by adopting a split-type front section handle assembly and a rear section handle assembly, and integrates the air inlet valve, trigger, and needle bar into the rear section handle assembly, and makes the front section handle assembly and the rear section handle assembly detachably fixedly connected. During use, the user can configure multiple front section handle assemblies according to the paint color. When it is necessary to change to a different color paint, simply remove the currently used front section handle assembly from the rear section handle assembly, and then replace it with the corresponding front section handle assembly. In this way, the inkjet printing operation can continue without cleaning. The operation is convenient and helps to improve inkjet printing efficiency and inkjet printing quality. Furthermore, the split-type inkjet printer provided by this utility model has a needle bar that abuts against the nozzle in the rear handle. With the combined action of the trigger, the front elastic component, and the rear elastic component, it can not only control the opening and closing of the nozzle, but also adjust the liquid flow rate of the nozzle, thereby effectively meeting the actual inkjet printing needs of users. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the assembly structure of the front handle assembly and the rear handle assembly in Embodiment 1 of this utility model.

[0020] Figure 2 yes Figure 1 Enlarged structural diagram at point A in the middle.

[0021] Figure 3 This is a schematic diagram of the separation structure of the front handle assembly and the rear handle assembly in Embodiment 1 of this utility model.

[0022] Figure 4 This is a schematic diagram of the connection structure between the front section and the rear section of the handle in Embodiment 1 of this utility model.

[0023] Figure 5 This is a schematic diagram of the assembly structure of the front handle assembly and the rear handle assembly in Embodiment 2 of this utility model.

[0024] Figure 6 This is a schematic diagram of the separation structure of the front handle assembly and the rear handle assembly in Embodiment 2 of this utility model.

[0025] Figures 1-6 middle:

[0026] 1. Front handle assembly;

[0027] 10. Front section of the stem;

[0028] 101. Air passage; 102. Liquid passage; 103. Connecting part; 104. Connecting groove; 1041. First connecting section; 1042. Second connecting section; 105. Bushing; 106. Annular protrusion; 1061. First inclined surface; 1062. Second inclined surface;

[0029] 11. Spray nozzle;

[0030] 12. Nozzle;

[0031] 13. Spray needle; 131. Spray needle holder;

[0032] 14. Cup holder;

[0033] 15. Sealing ring;

[0034] 16. Tighten the screws;

[0035] 17. Spray needle spring;

[0036] 2. Rear handle assembly;

[0037] 20. Rear handle; 201. Limiting step; 202. Snap ring; 203. O-ring;

[0038] 21. Inlet valve; 211. Outlet valve;

[0039] 22. Trigger;

[0040] 23. Needle bar;

[0041] 24. Locking ring; 241. Pin; 242. Groove;

[0042] 25. Positioning ring; 251. Protrusion;

[0043] 26. Elastic band;

[0044] 271. Adjusting rod; 272. Locking nut; 273. Adjusting screw;

[0045] 28. Needle bar spring;

[0046] 29. Extend the handle. Detailed Implementation

[0047] The present invention will be further described below with reference to the accompanying drawings.

[0048] Example 1, as Figures 1 to 4 The illustrated split-type inkjet printer includes a front handle assembly 1 and a rear handle assembly 2, which are separate and mutually compatible, wherein:

[0049] The front handle assembly 1 includes a front handle 10, a nozzle 11, a nozzle 12, and a nozzle 13. The nozzle 11 and the nozzle 12 are fitted together at the front end of the front handle 10. The front handle 10 is provided with an air channel 101 corresponding to the nozzle 11 and a liquid channel 102 corresponding to the nozzle 12. The nozzle 13 is movably disposed in the liquid channel 102. The front handle 10 is provided with a front elastic member that cooperates with the nozzle 13. The front elastic member makes the nozzle 13 always have the tendency to open the nozzle 12. The front handle 10 is also provided with a cup holder 14 for installing a cup. The cup holder 14 is connected to the liquid channel 102.

[0050] The rear handle assembly 2 includes a rear handle 20, an air inlet valve 21, a trigger 22, and a needle bar 23. The front handle 10 and the rear handle 20 are detachably fixedly connected. The air inlet valve 21 is connected to the rear handle 20, and the air outlet 211 of the air inlet valve 21 is connected to the air passage 101. The trigger 22 is disposed in the rear handle 20 to control the opening and closing of the air inlet valve 21. The needle bar 23 is movably disposed in the rear handle 20 and is linked with the trigger 22. The front end of the needle bar 23 abuts against the rear end of the nozzle 13. The rear handle 20 is provided with a rear elastic member that cooperates with the needle bar 23. The rear elastic member, through the needle bar 23, ensures that the nozzle 13 always has a tendency to overcome the elastic force of the front elastic member and close the nozzle 12.

[0051] Before use, the split-type inkjet printer provided by this utility model is assembled by attaching the front handle assembly 1 to the rear handle assembly 2, attaching the paint cup to the paint cup holder 14, and connecting the air inlet of the air inlet valve 21 to the air source. When the trigger 22 is not activated, the needle bar 23 pushes forward against the nozzle 13 under the elastic force of the rear elastic member, causing the nozzle 13 to overcome the elastic force of the front elastic member and close the nozzle 12. During the inkjet printing operation, first press the trigger 22 to open the air inlet valve 21, so that the compressed air from the air source flows through the air inlet valve 21, the air channel 101 and the nozzle 11 and is sprayed out from the front end of the nozzle 11. Then pull the trigger 22, which pushes the needle bar 23 to move backward against the elastic force of the rear elastic member. At this time, the thrust of the needle bar 23 on the nozzle 13 gradually decreases, and the nozzle 13 gradually moves backward under the action of the elastic force of the front elastic member, so that the nozzle 13 opens the nozzle 12. The liquid in the receiving cup flows through the liquid channel 102 to the gap between the nozzle 12 and the nozzle 13 and flows out from the nozzle 12. The liquid that flows out is quickly atomized by the compressed air sprayed from the front end of the nozzle 11, thereby achieving the purpose of atomized spraying. During the printing process, the user can adjust the backward movement of the needle bar 23 by using the trigger 22, thereby adjusting the backward movement of the inkjet needle 13 and thus adjusting the gap between the inkjet needle 13 and the nozzle 12, so as to adjust the liquid flow rate of the nozzle 12 and meet the different printing needs of the user.

[0052] It should be noted that the specific structure and working principle of the nozzle 11, nozzle 12, air inlet valve 21 and trigger 22 are conventional technical settings in this field and belong to the prior art, so they will not be described in detail here. For details, please refer to a reset-type locking spray pen disclosed in Chinese Utility Model Patent (Announcement No. CN204996614U).

[0053] To prevent the liquid in the front section of the handle 10 from contaminating the rear section of the handle assembly 2, a sealing member is provided inside the front section of the handle 10 to prevent the liquid from flowing to the rear section of the handle assembly 2. Specifically, see... Figure 2 As shown, the sealing component is a sealing ring 15 disposed in the liquid channel 102. The sealing ring 15 is sleeved between the front handle 10 and the nozzle 13. The nozzle 13 and the sealing ring 15 are sealed and slidably fitted. A clamping screw 16 is provided in the front handle 10. The sealing ring 15 is axially limited between the front handle 10 and the clamping screw 16.

[0054] The rear end of the nozzle 13 is provided with a nozzle seat 131 that abuts against the nozzle bar 23. The nozzle seat 131 is fixedly connected to the nozzle 13. The front elastic member is a nozzle spring 17 that abuts against the front section of the handle 10 and the nozzle seat 131. The nozzle spring 17 applies a rearward elastic force to the nozzle seat 131, so that the nozzle 13 always has a tendency to move backward.

[0055] join Figure 3and Figure 4 As shown, the rear end of the front handle 10 is provided with a connecting part 103 that extends into the rear handle 20. The connecting part 103 is sealed to the rear handle 20. The rear end of the connecting part 103 is provided with an "L"-shaped connecting groove 104. The connecting groove 104 includes a first connecting section 1041 extending axially along the connecting part 103 and a second connecting section 1042 extending circumferentially along the connecting part 103. The front end of the first connecting section 1041 communicates with the second connecting section 1042, and the rear end of the first connecting section 1041 passes through the end of the connecting part 103. The rear handle 20 is provided with a pin 241 corresponding to the connecting groove 104. The pin 241 cooperates with the connecting groove 104 to form a detachable fixed connection between the front handle 10 and the rear handle 20. When assembling the front handle assembly 1 and the rear handle assembly 2, align the rear end of the front handle 10 with the front end of the rear handle 20, insert the connecting part 103 into the rear handle 20, and allow the pin 241 to enter the first connecting section 1041. Then, push the front handle 10 backward until the pin 241 moves to the junction of the first connecting section 1041 and the second connecting section 1042. Next, rotate the front handle 10 to move the pin 241 into the second connecting section 1042, thereby achieving a quick connection and fixation between the front handle assembly 1 and the rear handle assembly 2. When it is necessary to remove the front handle assembly 1 from the rear handle assembly 2, simply follow the reverse order of the above steps to quickly disassemble the front handle assembly 1.

[0056] In this embodiment, for ease of processing, a locking ring 24 is provided inside the rear handle 20. The locking ring 24 is engaged with the rear handle 20 to prevent rotation, and the pin 241 is provided on the inner wall of the locking ring 24. Furthermore, to facilitate the installation and positioning of the locking ring 24, a limiting step 201 and a positioning ring 25 are respectively provided inside the rear handle 20. The limiting step 201 is located at the front end of the locking ring 24, and the positioning ring 25 is located at the rear end of the locking ring 24. The positioning ring 25 is fixedly connected to the rear handle 20. The locking ring 24 is axially limited between the limiting step 201 and the positioning ring 25. The rear end face of the locking ring 24 is provided with a groove 242, and the front end face of the positioning ring 25 is provided with a protrusion 251 corresponding to the groove 242. The protrusion 251 is inserted into the groove 242, so that the locking ring 24 and the positioning ring 25 are anti-rotationally engaged, ensuring that the locking ring 24 will not rotate relative to the rear handle 20 when the front handle assembly 1 is installed or disassembled, thereby improving the stability and reliability of the connection between the front handle 10 and the rear handle 20.

[0057] An elastic ring 26 is provided between the locking ring 24 and the limiting step 201. The locking ring 24 is elastically limited axially between the limiting step 201 and the positioning ring 25 by the elastic ring 26. By providing the elastic ring 26, the locking ring 24 can have a certain floating effect in the axial direction of the rear handle 20. When the pin 241 moves from the first connecting section 1041 of the connecting groove 104 to the second connecting section 1042, the elastic ring 26 can undergo slight deformation under the mutual tension of the pin 241 and the connecting part 103. This balances the relative shaking caused by the machining error between the pin 241 and the connecting groove 104, making the connection between the pin 241 and the connecting groove 104 more stable and further improving the stability of the connection between the front handle 10 and the rear handle 20.

[0058] See Figure 1 and Figure 3 As shown, an adjustment mechanism that cooperates with the needle bar 23 is provided inside the rear section of the handle 20. The adjustment mechanism includes an adjustment rod 271, a locking nut 272, and an adjustment screw 273. The adjustment rod 271 is sleeved on the outside of the needle bar 23. The tail of the adjustment rod 271 is provided with a shrinkage gap that extends axially. The locking nut 272 is threaded to the tail of the adjustment rod 271. When the locking nut 272 is threaded onto the adjustment rod 271, the locking nut 272 applies a radial force to the adjustment rod 271. This radial force causes the shrinkage gap of the adjustment rod 271 to shrink, thereby causing the adjustment rod 271 to clamp the needle bar 23. An adjusting screw 273 is fitted onto the outside of the adjusting rod 271 and is threadedly connected to the rear handle 20. The rear elastic component is a needle bar spring 28 that abuts against the adjusting rod 271 and the adjusting screw 273. The needle bar spring 28, through the adjusting rod 271, ensures that the needle bar 23 always has a forward movement tendency. When the user pulls the trigger 22, the trigger 22 drives the needle bar 23 to move backward against the elastic force of the needle bar spring 28. During use, the user can adjust the pre-compression of the needle bar spring 28 by turning the adjusting screw 273, thereby adjusting the elastic force of the needle bar spring 28. In this embodiment, for ease of gripping by the user, an extended handle 29 (i.e., a tail handle) is also provided at the tail of the rear handle 20.

[0059] See Figure 2 As shown, a bushing 105 is provided at the rear end of the front handle 10, extending into the rear handle 20. The outer wall of the bushing 105 is in contact with the inner wall of the front end of the rear handle 20. By providing the bushing 105, when the front handle 10 is connected to the rear handle 20, the bushing 105 is in contact with the inner wall of the front end of the rear handle 20, thereby preventing the front handle 10 from shaking relative to the rear handle 20, and further improving the stability and reliability of the connection between the front handle assembly 1 and the rear handle assembly 2.

[0060] Example 2: This example is basically the same as Example 1 in terms of main structure and working principle. The difference lies in the connection method between the front handle 10 and the rear handle 20. In this example, see... Figure 5 and Figure 6 As shown, the rear end of the front handle 10 is provided with a connecting part 103 that extends into the rear handle 20. The connecting part 103 is sealed to the rear handle 20. The outer wall of the connecting part 103 is provided with an annular protrusion 106. The rear handle 20 is provided with a retaining spring 202 corresponding to the annular protrusion 106. The retaining spring 202 cooperates with the annular protrusion 106 to form a detachable fixed connection between the front handle 10 and the rear handle 20. Specifically, the rear end of the annular protrusion 106 is provided with a first inclined surface 1061, and the front end of the annular protrusion 106 is provided with a second inclined surface 1062. The first inclined surface 1061 is a guide inclined surface, and the second inclined surface 1062 is a locking inclined surface. The inclination of the first inclined surface 1061 is less than the inclination of the second inclined surface 1062. When the connecting part 103 is inserted into the rear handle 20, the annular protrusion 106 first opens the retaining spring 202 through the first inclined surface 1061. When the retaining spring 202 passes the first inclined surface 1061 and enters the second inclined surface 1062, the retaining spring 202 returns to its original position and contracts under its own elastic force, so that the retaining spring 202 cooperates with the second inclined surface 1062 to lock the connecting part 103, thereby preventing the front handle 10 from detaching. When it is necessary to remove the front handle assembly 1 from the rear handle assembly 2, pull the front handle 10 forward to move the connecting part 103 forward relative to the rear handle 20. At this time, the second inclined surface 1062 first opens the retaining spring, so that the retaining spring 202 releases the lock on the connecting part.

[0061] In this embodiment, an "O" ring 203 is also provided inside the rear handle 20 and sleeved on the outside of the connecting part 103. By providing the "O" ring 203, on the one hand, the connecting part 103 and the rear handle 20 can form a sealed fit, and on the other hand, the connecting part 103 can also play a positioning role, so that the coaxiality between the connecting part 103 and the rear handle 20 is higher during installation, avoiding relative shaking between the two, which is conducive to improving the stability and reliability of the connection between the front handle assembly 1 and the rear handle assembly 2.

[0062] In summary, the split-type inkjet printer provided by this utility model integrates the printhead 11, nozzle 12, nozzle 13, and material cup holder 14 into the front handle 10 by adopting a split-type front handle assembly 1 and rear handle assembly 2, and integrates the air inlet valve 21, trigger 22, and needle bar 23 into the rear handle 20. The front handle 10 and the rear handle 20 are detachably and fixedly connected. During use, the user can configure multiple front handle assemblies 1 according to the paint color. When it is necessary to change to a different color paint, simply remove the currently used front handle assembly 1 from the rear handle assembly 2 and replace it with the corresponding front handle assembly 1. This allows for continued inkjet printing without cleaning, making operation convenient and improving inkjet printing efficiency and quality. Furthermore, the split-type inkjet printer provided by this utility model has a needle bar 23 that abuts against the nozzle 13 in the rear handle 20. With the combined action of the trigger 22, the front elastic component and the rear elastic component, it can not only control the opening and closing of the nozzle 12, but also adjust the liquid flow rate of the nozzle 12, thereby effectively meeting the actual inkjet printing needs of users.

[0063] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A split-type inkjet printing tool, characterized in that: Including mutually compatible front stem assembly and rear stem assembly; The front handle assembly includes a front handle, a nozzle, a spray nozzle, and a spray needle. The nozzle and the spray nozzle are fitted together at the front end of the front handle. The front handle is provided with an air channel corresponding to the nozzle and a liquid channel corresponding to the spray nozzle. The spray needle is movably disposed in the liquid channel. The front handle is provided with a front elastic member that cooperates with the spray needle. The front elastic member ensures that the spray needle always has a tendency to open the nozzle. The front handle is also provided with a cup holder for mounting a receiving cup. The cup holder is connected to the liquid channel. The rear handle assembly includes a rear handle, an air inlet valve, a trigger, and a needle bar. The front handle and the rear handle are detachably fixedly connected. The air inlet valve is connected to the rear handle, and its outlet communicates with the air passage. The trigger is located within the rear handle to control the opening and closing of the air inlet valve. The needle bar is movably located within the rear handle and engages with the trigger. The front end of the needle bar abuts against the rear end of the nozzle. The rear handle is provided with a rear elastic member that engages with the needle bar. The rear elastic member, through the needle bar, ensures that the nozzle always has a tendency to overcome the elastic force of the front elastic member and close the nozzle.

2. The split-type inkjet printing tool according to claim 1, characterized in that: The front section of the handle is provided with a sealing member to prevent liquid from flowing into the rear section of the handle assembly.

3. A split-type inkjet printing tool according to claim 2, characterized in that: The sealing component is a sealing ring disposed in the liquid channel, and the sealing ring is sleeved between the front handle and the nozzle.

4. A split-type inkjet printing tool according to claim 1, characterized in that: The rear end of the nozzle is provided with a nozzle seat that abuts against the nozzle bar. The front elastic member is a nozzle spring that abuts against the front section of the handle and the nozzle seat. The nozzle spring, through the nozzle seat, ensures that the nozzle always has a tendency to move backward.

5. A split-type inkjet printing tool according to claim 1, characterized in that: The rear end of the front handle is provided with a connecting part that extends into the rear handle body. The rear end of the connecting part is provided with an "L"-shaped connecting groove. The rear handle body is provided with a pin corresponding to the connecting groove. The front handle body and the rear handle body are detachably and fixedly connected by the pin engaging with the connecting groove.

6. A split-type inkjet printing tool according to claim 5, characterized in that: A locking ring is provided in the rear section of the handle, and the locking ring is engaged with the rear section of the handle to prevent rotation. The pin is provided on the inner wall of the locking ring.

7. A split-type inkjet printing tool according to claim 6, characterized in that: The rear section of the handle is provided with a limiting step and a positioning ring respectively. The limiting step is located at the front end of the locking ring, and the positioning ring is located at the rear end of the locking ring. The positioning ring is fixedly connected to the rear section of the handle. The locking ring is axially limited between the limiting step and the positioning ring. The locking ring and the positioning ring are anti-rotationally engaged.

8. A split-type inkjet printing tool according to claim 7, characterized in that: An elastic ring is provided between the locking ring and the limiting step, and the locking ring is elastically limited axially between the limiting step and the positioning ring by the elastic ring.

9. A split-type inkjet printing tool according to claim 1, characterized in that: The rear end of the front section of the handle is provided with a connecting part that extends into the rear section of the handle. The outer wall of the connecting part is provided with an annular protrusion. The rear section of the handle is provided with a retaining spring corresponding to the annular protrusion. The retaining spring cooperates with the annular protrusion to make the front section of the handle and the rear section of the handle detachably fixedly connected.

10. A split-type inkjet printing tool according to claim 1, characterized in that: The rear section of the shank is equipped with an adjustment mechanism that cooperates with the needle bar. The adjustment mechanism includes an adjustment rod, a locking nut, and an adjustment screw. The adjustment rod is sleeved on the outside of the needle bar. The locking nut is threaded to the tail of the adjustment rod and is used to clamp the needle bar with the adjustment rod. The adjustment screw is sleeved on the outside of the adjustment rod and is threaded to the rear section of the shank. The rear elastic member is a needle bar spring that abuts against the adjustment rod and the adjustment screw. The needle bar spring, through the adjustment rod, ensures that the needle bar always has a forward movement tendency.

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