Micro-controlled dispensing pen

Abstract

A micro-control type dispensing pen comprises a pen barrel, a glue cylinder, a driving unit and a control unit; the pen barrel is internally provided with a containing cavity; the glue cylinder is mounted at the end of the pen barrel and is provided with a material cavity for filling glue; a piston is slidably mounted in the material cavity; a glue nozzle is further provided on the glue cylinder and is in communication with the material cavity and the outside; the driving unit comprises a motor, a screw rod and a sleeve rod; the motor is mounted in the containing cavity and its rotating shaft is coaxially fixedly connected with the screw rod; the sleeve rod is threadedly connected with the screw rod; the sleeve rod is in sliding fit with the containing cavity and is fixedly connected with the piston; the control unit is mounted in the containing cavity and is electrically connected with the motor; the control unit controls the positive rotation of the rotating shaft of the motor to drive the sleeve rod to drive the piston to extrude the glue in the material cavity from the glue nozzle, or controls the reverse rotation of the rotating shaft of the motor to drive the sleeve rod to drive the piston to suck the glue from the outside into the material cavity; compared with the prior art, the present scheme can accurately control the glue output and recycle the excess glue, thereby solving the problems of excessive glue output and uneven dispensing, improving the use experience and reducing the product repair rate.

Description

Technical Field

[0001] This utility model belongs to the field of dispensing equipment technology, and in particular relates to a micro-controlled dispensing pen. Background Technology

[0002] Dispensing, also known as glue application, is a technique that involves applying glue or other adhesive liquid droplets onto a product to achieve adhesion, insulation, and fixation. A dispensing pen is a tool made based on the principles of dispensing technology and is widely used in the electronic packaging industry. For example, when repairing mobile phones, a dispensing pen is used to bond and seal the screen edges to ensure a tight seal.

[0003] Most existing dispensing pens use manual or pneumatic methods to drive the dispensing of glue. Both of these methods make it difficult to accurately control the amount of glue dispensed, which can easily lead to problems such as excessive glue or uneven dispensing during the dispensing process. This not only interferes with the worker's operation and reduces the user experience, but also causes the glued products to not adhere firmly and have poor sealing, increasing the product rework rate. Therefore, it is necessary to design a micro-controlled dispensing pen to solve the above problems. Utility Model Content

[0004] Technical problems to be solved

[0005] This invention provides a micro-controlled dispensing pen that can precisely control the amount of glue dispensed and recycle glue, thereby solving the problems of excessive glue dispensing or uneven dispensing, improving the user experience and reducing the product return rate.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A micro-controlled dispensing pen includes a pen barrel, a glue cartridge, a drive unit, and a control unit. The pen barrel has an internal cavity. The glue cartridge is mounted at the end of the pen barrel and has a material chamber for filling glue. A piston is slidably mounted in the material chamber. The glue cartridge also has a nozzle communicating with the material chamber and the outside. The drive unit includes a motor, a screw, and a sleeve. The motor is mounted in the cavity, and its shaft is coaxially fixed to the screw. The sleeve is threaded to the screw and slidably engages with the cavity and is fixed to the piston. The control unit is mounted in the cavity and electrically connected to the motor to drive the piston to move along the material chamber.

[0009] Preferably, it further includes a reduction gearbox, the input end of which is connected to the motor shaft, and the output end of which is coaxially fixed to the screw.

[0010] Preferably, the control unit includes a circuit board and a button assembly. The circuit board is installed in the receiving cavity and electrically connected to the motor and the button assembly. The button assembly is installed on the outer wall of the pen barrel. Pressing the button assembly controls the operating state of the motor.

[0011] Preferably, the button assembly includes a first button and a second button electrically connected to the circuit board. Both the first button and the second button are mounted on the outer wall of the pen barrel. Pressing the first button controls the motor to rotate forward, causing the sleeve to extend. Releasing the first button controls the motor to rotate in reverse, causing the sleeve to retract. Pressing the second button once controls the sleeve to reset. Pressing the second button multiple times adjusts the motor speed. Pressing and holding the second button for a long time controls the motor to turn off.

[0012] Preferably, the control unit further includes a battery and a charging port. The battery is fixedly installed in the receiving cavity and electrically connected to the circuit board. The charging port is installed on the side wall of the pen barrel and electrically connected to the circuit board. The charging port can be connected to an external data cable to charge the battery.

[0013] Preferably, the battery is a disposable battery, and the battery is detachably installed in the receiving cavity.

[0014] Preferably, the control unit further includes a display screen, and an observation window is provided on the side wall of the pen barrel. The display screen is installed at the observation window and electrically connected to the circuit board.

[0015] Preferably, the glue tube is detachably connected to the end of the pen barrel, and the glue tube has a built-in NFC coil for recording glue information. The circuit board is equipped with a detection module corresponding to the NFC coil for reading information such as the type and shelf life of the glue.

[0016] Preferably, a sealing ring is installed on the piston to abut against the inner wall of the material chamber.

[0017] Preferably, the outer wall of the pen barrel is provided with anti-slip texture.

[0018] Preferably, it further includes a fastening sleeve, the end of the pen barrel is provided with an outwardly opening mounting cavity, and the rubber tube is provided with a fixing block that can enter and exit the mounting cavity; the fastening sleeve is movably fitted onto the rubber tube, and the top end of the fastening sleeve can abut against the fixing block, and the fastening sleeve is also threadedly connected to the mounting cavity to restrict the fixing block within the mounting cavity.

[0019] Preferably, the inner wall of the fastening sleeve has a circumferential array of multiple abutment blocks that simultaneously abut against the outer wall of the rubber tube, so as to achieve the limiting and fixing of the rubber tube while saving materials.

[0020] Preferably, it also includes a pen cap, and the rubber tube is provided with a connecting end that coaxially covers the rubber nozzle. The pen cap is detachably connected to the connecting end to open or close the rubber nozzle.

[0021] Preferably, the pen cap is threaded to the connecting end.

[0022] Preferably, it also includes a housing, the housing having a sealed cavity containing a soft rubber block; the pen barrel is detachably mounted on the housing, and the rubber tube extends into the sealed cavity, causing the nozzle to abut against the soft rubber block, which deforms under pressure to tightly seal the nozzle.

[0023] Preferably, the cabin is further provided with a positioning groove and a slot that are interconnected, and the positioning groove is located above the slot. A magnetic block is installed on the side wall of the positioning groove, and a notch is provided on the bottom wall of the slot to connect to the sealing cavity. The pen barrel is slidably engaged with the positioning groove, and the end of the pen barrel can abut against the bottom wall of the positioning groove. The rubber tube can penetrate through the notch into the sealing cavity, and the rubber nozzle abuts against the soft rubber block. A magnetic block is also installed inside the pen barrel, and the magnetic block can attract the magnetic block to fix the pen barrel on the cabin.

[0024] (III) Beneficial Effects

[0025] This utility model provides a micro-controlled dispensing pen. By integrating a drive unit and a control unit inside the pen barrel, the overall structure of the dispensing pen is more compact and the overall weight is lighter. The drive unit, which consists of a motor, a screw, and a sleeve, has precise feed and retraction amounts, enabling precise control of the amount of glue dispensed and timely recovery of excess glue. This solves the problems of excessive glue dispensing or uneven dispensing, and also addresses the issues of excessive glue affecting operation and defects caused by glue residue. This improves the user experience and reduces the product return rate. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 The schematic diagram shows the structure of the micro-controlled dispensing pen and the pod of this utility model. Figure 1 ;

[0028] Figure 2 It shows Figure 1 The main view;

[0029] Figure 3 It shows Figure 2AA section view;

[0030] Figure 4 A schematic diagram of the micro-controlled dispensing pen and the pod of this utility model is shown.

[0031] Figure 5 A schematic diagram of the overall structure of the micro-controlled dispensing pen of this utility model is shown;

[0032] Figure 6 It shows Figure 5 BB cross-sectional view;

[0033] Figure 7 It shows Figure 5 Decomposition diagram Figure 1 ;

[0034] Figure 8 It shows Figure 5 Decomposition diagram Figure 2 ;

[0035] Figure 9 This diagram illustrates a portion of the structure of the micro-controlled dispensing pen of this invention. Figure 1 ;

[0036] Figure 10 This diagram illustrates a portion of the structure of the micro-controlled dispensing pen of this invention. Figure 2 ;

[0037] Figure 11 The schematic diagram of the structure of the rubber tube and pen cap of this utility model is shown. Figure 1 ;

[0038] Figure 12 The schematic diagram of the structure of the rubber tube and pen cap of this utility model is shown. Figure 2 .

[0039] In the diagram: 1. Pen barrel, 10. Receiving cavity, 11. Observation window, 12. Mounting cavity, 13. Anti-slip texture, 1x magnetic block, 2. Glue tube, 20. Material cavity, 21. Piston, 210. Sealing ring, 22. Glue nozzle, 23. NFC coil, 24. Fixing block, 25. Connecting end, 3. Drive unit, 31. Motor, 32. Screw, 33. Sleeve rod, 4. Control unit, 40. Circuit board, 400. Detection module, 41. Button assembly, 411. First button, 412. Second button, 43. Battery, 44. Charging port, 45. Display screen, 5. Fastening sleeve, 50. Abutment block, 6. Pen cap, 7. Cabin, 70. Sealing cavity, 71. Soft rubber block, 72. Positioning groove, 72x suction blocks, 73. Slot, 730. Notch, 8. Reduction gearbox. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application. It is understood that the accompanying drawings are provided for reference and illustration only, and are not intended to limit this application. The connection relationships shown in the accompanying drawings are only for clear description and do not limit the connection method.

[0041] It should be noted that 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 intervening component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; or as a connection within two components. The terms "center," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0042] See appendix Figure 5 - Appendix Figure 10 A micro-controlled dispensing pen includes a pen barrel 1, a glue cartridge 2, a drive unit 3, and a control unit 4. The pen barrel 1 has a receiving cavity 10 inside. The glue cartridge 2 is installed at the end of the pen barrel 1 and has a material cavity 20 for filling glue. A piston 21 is slidably installed in the material cavity 20. The glue cartridge 2 also has a nozzle 22 that connects the material cavity 20 and the outside. The drive unit 3 includes a motor 31, a screw 32, and a sleeve 33. The motor 31 is installed in the receiving cavity 10, and the rotating shaft of the motor 31 is coaxially fixed to the screw 32. The sleeve 33 is threadedly connected to the screw 32, and the sleeve 33 slides in the receiving cavity 10 and is fixed to the piston 21. The control unit 4 is installed in the receiving cavity 10 and electrically connected to the motor 31 to drive the piston 21 to move along the material cavity 20.

[0043] Specifically, under normal circumstances, glue cartridge 2 stores glue. During use, the control unit 4 controls the motor 31 to rotate forward, which in turn drives the screw 32 to rotate forward. The screw 32 then drives the sleeve 33 to extend and move downward, which in turn drives the piston 21 to feed the glue in the material chamber 20 out of the nozzle 22. When too much glue is extruded, or when glue remains on the equipment after dispensing, the control unit 4 controls the motor 31 to rotate in reverse, which in turn drives the screw 32 to rotate in reverse. The screw 32 then drives the sleeve 33 to retract and move upward, which in turn drives the piston 21 to retract and draw the glue from the outside back into the material chamber 20.

[0044] In summary, by integrating the drive unit 3 and control unit 4 inside the pen barrel 1, this utility model makes the overall structure of the dispensing pen more compact and the overall weight lighter. The drive unit 3, which consists of the motor 31, screw 32 and sleeve 33, has precise feed and retraction, which can achieve micro-precise control of the amount of glue dispensed and timely recovery of excess glue. This solves the problems of excessive glue dispensing or uneven dispensing, and also solves the problems of operation being affected by excessive glue and defects caused by glue residue. This improves the user experience and reduces the product return rate.

[0045] It should be noted that, under normal circumstances, in order to prevent the glue in the material cavity 20 from solidifying, the nozzle 22 needs to be sealed with a plug (not shown in the figure) or wax glue to ensure the airtightness of the material cavity 20, and then the sealing state of the nozzle 22 can be released; since there are various sealing methods, this utility model does not limit this.

[0046] On the other hand, the glue tube 2 and the glue nozzle 22 can be integrally formed or designed to be detachable from each other. Manufacturers can choose according to their needs, and this utility model does not impose any restrictions on this.

[0047] See appendix Figure 9 - Appendix Figure 10 The present invention also includes a reduction gearbox 8, the input end of which is connected to the rotating shaft of the motor 31, and the output end of the reduction gearbox 8 is coaxially fixed to the screw 32.

[0048] Specifically, the reduction gearbox 8 can convert high-speed, low-torque power into low-speed, high-torque power, thereby reducing the rotational speed of the screw 32 to control the moving speed of the sleeve 33 and piston 21, so as to further achieve micro-control of the dispensing amount and improve the user experience.

[0049] It should be noted that the reduction gearbox 8 is an existing product, and the structural design of the reduction gearbox 8 combined with the motor 31 to reduce the rotational speed of the motor 31 shaft is very common in the mechanical field. Therefore, the specific structure of the reduction gearbox 8 will not be described in detail in this utility model.

[0050] See appendix Figure 6 - Appendix Figure 10 The types of control units 4 are diverse and quite common in the field of electronics, so this utility model does not limit them. For ease of understanding, the control unit 4 in this embodiment includes a circuit board 40 and a button assembly 41. The circuit board 40 is installed in the receiving cavity 10 and is electrically connected to the motor 31 and the button assembly 41. The button assembly 41 is installed on the outer wall of the pen barrel 1. Pressing the button assembly 41 controls the operating state of the motor 31.

[0051] The technique of controlling the motor's operating state through the button assembly 41 is quite common in the mechanical field. Therefore, this utility model does not elaborate on the types of button assemblies 41 or the circuit structure between the button assembly 41 and the circuit board. For ease of understanding, in this embodiment, the button assembly 41 includes a first button 411 and a second button 412 electrically connected to the circuit board 40. Both the first button 411 and the second button 412 are mounted on the outer wall of the pen barrel 1.

[0052] Specifically, both the first button 411 and the second button 412 are mounted on the outer wall of the pen barrel 1 for easy user operation. In use, pressing the first button 411 causes the circuit board 40 to send a forward rotation signal to the motor 31, starting the motor 31 and driving the screw 32 to rotate forward. This causes the sleeve 33 to extend and move downward, thereby causing the piston 21 to squeeze the glue in the material chamber 20. Releasing the first button 411 causes the circuit board 40 to send a reverse rotation signal to the motor 31, starting the motor 31 and driving the screw 32 to rotate in reverse. This causes the sleeve 33 to retract and move upward, thereby causing the piston 21 to squeeze the glue in the material chamber 20. 1. External glue is drawn into the material chamber 20; the second button 412 is used as an independent function key, and its specific function is determined by the number of times the second button 412 is pressed and its state. For example, pressing the second button 412 once can control the motor 31 to drive the sleeve rod 33 to reset and then close; pressing the second button 412 repeatedly can adjust the speed of the motor 31, thereby controlling the glue dispensing speed and the glue recycling speed; pressing and holding the second button 412 can control the motor 31 to close and stop the piston 21. The specific operation mode can be set by the manufacturer by selecting the preset program.

[0053] See appendix Figure 6 - Appendix Figure 10 The circuit board 40 can be directly powered by an external power source or can have a built-in battery 43. In this embodiment, the control unit 4 also includes a battery 43 and a charging port 44. The battery 43 is fixedly installed in the receiving cavity 10 and electrically connected to the circuit board 40. The charging port 44 is installed on the side wall of the pen barrel 1 and electrically connected to the circuit board 40.

[0054] Specifically, when the battery 43 is fully charged, the user can use it directly by hand without an external power source, which improves the convenience of operation; when the battery 43 is low on power, it can be charged by connecting an external data cable (not shown in the diagram) through the charging port 44.

[0055] Furthermore, the battery 43 can also be a disposable battery, and the battery 43 is detachably installed in the receiving cavity 10, which facilitates the replacement of the battery 43.

[0056] See appendix Figure 6 - Appendix Figure 10 The control unit 4 also includes a display screen 45. An observation window 11 is provided on the side wall of the pen barrel 1. The observation window 11 can be made of materials such as glass or transparent plastic. The display screen 45 is installed at the observation window 11 and is electrically connected to the circuit board 40.

[0057] Specifically, the display screen 45 can be used to display the power level of the battery 43; on the other hand, when the amount of glue stored inside the material chamber 20 is fixed, the circuit board 40 can infer the remaining amount of glue inside the material chamber 20 based on the feed rate of the piston 21, and transmit the remaining amount information to the display screen 45 for display; therefore, the design of the display screen 45 makes information such as power level and glue remaining amount visible, further improving the ease of operation.

[0058] It should be noted that the technology of circuit board 40 analyzing and obtaining relevant data based on the movement of a certain structure and then feeding back the relevant data information to display screen 45 for display is quite common in the field of electronics. Therefore, its specific working principle and circuit structure will not be described in detail in this utility model.

[0059] See appendix Figure 6 - Appendix Figure 12 The glue tube 2 is detachably connected to the end of the pen barrel 1, and the glue tube 2 has a built-in NFC coil 23 for recording glue information. The circuit board 40 is equipped with a detection module 400 corresponding to the NFC coil 23 for reading information such as the type and shelf life of the glue.

[0060] Specifically, before leaving the factory, the glue cartridge 2 filled with glue can record information such as the type of glue and the production date through the NFC coil 23. When in use, after the glue cartridge 2 is installed at the end of the pen barrel 1, the detection module 400 reads and identifies the NFC information content and displays it on the display screen 45, so that users can judge whether the type of glue and shelf life meet their needs, avoid using inferior glue and reduce the yield rate, and further improve the user experience.

[0061] It should be noted that the technology of recording information through NFC coil 23, reading information through detection module 400, and displaying it through display screen 45 is very common in the electronics field. Therefore, the specific working principle and circuit structure are not described in detail in this utility model.

[0062] See appendix Figure 6 and attached Figure 11 - Appendix Figure 12 The piston 21 is equipped with a sealing ring 210 that abuts against the inner wall of the material chamber 20. This design can improve the sealing between the piston 21 and the side wall of the material chamber 20 and prevent glue from overflowing from the side of the piston 21.

[0063] See appendix Figure 5 - Appendix Figure 8 The outer wall of the pen barrel 1 is provided with anti-slip texture 13. This design can increase friction with the hand and make it easier for the user to hold the pen barrel 1.

[0064] See appendix Figure 6 - Appendix Figure 8 The detachable connection between the glue tube 2 and the end of the pen barrel 1 can be achieved by means of magnetic connection, snap-fit ​​connection, or even threaded connection. Since there are various related structures, this utility model does not limit them. In order to avoid glue overflow caused by squeezing during the installation of the glue tube 2, this embodiment also includes a fastening sleeve 5. The end of the pen barrel 1 is provided with an outwardly opening mounting cavity 12. The glue tube 2 is provided with a fixing block 24 that can enter and exit the mounting cavity 12. The fastening sleeve 5 can be movably fitted onto the glue tube 2, and the top of the fastening sleeve 5 can abut against the fixing block 24. The fastening sleeve 5 is also threadedly connected to the mounting cavity 12.

[0065] Specifically, when installing the rubber sleeve 2, the fastening sleeve 5 is fitted onto the rubber sleeve 2, with the top of the fastening sleeve 5 abutting against the fixing block 24 of the rubber sleeve 2. Then, the fastening sleeve 5 is rotated and screwed into the mounting cavity 12 until the fixing block 24 is fixed in the mounting cavity 12. When removing the rubber sleeve 2, the fastening sleeve 5 is screwed away from the mounting cavity 12, and the rubber sleeve 2 falls under the action of gravity, so that the fixing block 24 is released from the mounting cavity 12 along with the fastening sleeve 5.

[0066] Compared to conventional disassembly structures, the design of the fastening sleeve 5 ensures that the side wall of the glue tube 2 does not need to contact the end of the pen barrel 1 during installation. This effectively prevents the side wall of the glue tube 2 from being squeezed, which would cause the glue in the material cavity 20 to overflow. It also improves the installation stability and disassembly convenience of the glue tube 2.

[0067] See appendix Figure 7 - Appendix Figure 8 The inner wall of the fastening sleeve 5 has a circumferential array of multiple abutment blocks 50 that synchronously abut against the outer wall of the rubber tube 2, so as to limit and fix the rubber tube 2 while saving materials, and further improve the installation stability of the rubber tube 2.

[0068] See appendix Figure 11 - Appendix Figure 12 This utility model also includes a pen cap 6. The glue tube 2 is provided with a connecting end 25 that coaxially covers the glue nozzle 22. The pen cap 6 is detachably connected to the connecting end 25 to open or close the glue nozzle 22. Therefore, the design of the pen cap 6 can close the glue nozzle 22 when the glue pen is not in use, preventing outside air and dust from entering the material chamber 20 through the glue nozzle 22 and causing the glue to deteriorate. This ensures that the glue inside the material chamber 20 can still be used normally within 24 hours, reducing glue waste.

[0069] It should be noted that magnetic connection, snap-fit ​​connection or other methods can be used to achieve the detachable connection between pen cap 6 and connecting end 25; since there are various related structures, this utility model does not limit this, for ease of understanding, in this embodiment, pen cap 6 and connecting end 25 are threaded together.

[0070] See appendix Figure 1 - Appendix Figure 4 In the absence of the pen cap 6, this utility model also includes a housing 7, which has a sealed cavity 70 with a soft rubber block 71 inside; the pen barrel 1 is detachably installed on the housing 7, and the rubber tube 2 can penetrate into the sealed cavity 70, so that the rubber nozzle 22 abuts against the soft rubber block 71.

[0071] Specifically, after the user finishes dispensing the adhesive, the pen 1 can be placed on the housing 7. When the pen 1 is placed on the housing 7, the glue tube 2 penetrates into the sealed cavity 70, and the glue nozzle 22 abuts against the soft rubber block 71. The soft rubber block 71 deforms under pressure and tightly seals the glue nozzle 22, preventing outside air and dust from entering the material cavity 20 through the glue nozzle 22 and causing the adhesive to deteriorate. When the pen 1 is removed from the housing 7, the soft rubber block 71 returns to its original shape for the next use.

[0072] Therefore, the design of the seat 7 can serve as a support to hold the dispensing pen and prevent it from falling and getting damaged, while also making it convenient for the user to hold it next time. On the other hand, it can temporarily seal the nozzle 22 to ensure that the glue inside the material chamber 20 can still be used normally within 24 hours, thus avoiding glue waste.

[0073] It should be noted that the soft rubber block 71 can be made of materials with elasticity and resilience, such as silicone or rubber. Since there are many types of related materials, this utility model does not limit the types of materials used.

[0074] See appendix Figure 1 - Appendix Figure 4The cabin 7 is also provided with a positioning groove 72 and a slot 73 that are interconnected. The positioning groove 72 is located above the slot 73. A magnetic block 72x is installed on the side wall of the positioning groove 72. The bottom wall of the slot 73 is provided with a notch 730 that connects to the sealing cavity 70. The pen barrel 1 is slidably engaged with the positioning groove 72, and the end of the pen barrel 1 can abut against the bottom wall of the positioning groove 72. The rubber tube 2 can penetrate through the notch 730 into the sealing cavity 70, and the rubber nozzle 22 abuts against the soft rubber block 71. A magnetic block 1x is also installed inside the pen barrel 1. The magnetic block 72x can attract the magnetic block 1x accordingly.

[0075] Specifically, the design of the positioning groove 72 and the slot 73 facilitates the insertion of the pen 1 and restricts the rotation of the pen 1, thereby making it easier for users to insert and remove the pen 1 and improving the ease of operation. When the pen 1 is inserted into the positioning groove 72 and the slot 73, the magnetic block 72x cooperates with the magnetic block 1x to fix the pen 1 on the base 7, thereby improving the installation stability of the pen 1, preventing the pen 1 from falling off the base 7 at will, and preventing the nozzle 22 from falling off the soft rubber block 71.

[0076] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A micro-controlled dispensing pen, characterized in that, include: Pen barrel (1), the pen barrel (1) has a receiving cavity (10) inside; A glue cylinder (2) is installed at the end of the pen barrel (1) and has a material cavity (20) for filling glue. A piston (21) is slidably installed in the material cavity (20). The glue cylinder (2) is also provided with a glue nozzle (22) that connects the material cavity (20) and the outside. The drive unit (3) includes a motor (31), a screw (32) and a sleeve (33). The motor (31) is installed in the receiving cavity (10), and the rotating shaft of the motor (31) is coaxially fixed to the screw (32). The sleeve (33) is threadedly connected to the screw (32), and the sleeve (33) slides with the receiving cavity (10) and is fixed to the piston (21). Control unit (4), which is installed in the receiving cavity (10) and electrically connected to the motor (31) to drive the piston (21) to move along the material cavity (20).

2. The micro-controlled dispensing pen according to claim 1, characterized in that, The control unit (4) includes a circuit board (40) and a button assembly (41). The circuit board (40) is installed in the receiving cavity (10) and electrically connected to the motor (31) and the button assembly (41). The button assembly (41) is installed on the outer wall of the pen (1). Pressing the button assembly (41) controls the operating state of the motor (31).

3. A micro-controlled dispensing pen according to claim 2, characterized in that, The control unit (4) also includes a battery (43) and a charging port (44). The battery (43) is fixedly installed in the cavity (10) and electrically connected to the circuit board (40). The charging port (44) is installed on the side wall of the pen (1) and electrically connected to the circuit board (40). The charging port (44) can be connected to an external data cable to charge the battery (43).

4. A micro-controlled dispensing pen according to claim 3, characterized in that, The control unit (4) also includes a display screen (45), and an observation window (11) is provided on the side wall of the pen (1). The display screen (45) is installed at the observation window (11) and electrically connected to the circuit board (40).

5. A micro-controlled dispensing pen according to claim 4, characterized in that, The glue tube (2) is detachably connected to the end of the pen (1), and the glue tube (2) has a built-in NFC coil (23) for recording glue information. The circuit board (40) is equipped with a detection module (400) corresponding to the NFC coil (23) for reading glue information.

6. A micro-controlled dispensing pen according to claim 1, characterized in that, It also includes a fastening sleeve (5), the end of the pen barrel (1) is provided with an outwardly opening mounting cavity (12), the rubber tube (2) is provided with a fixing block (24) that can enter and exit the mounting cavity (12); the fastening sleeve (5) is movably fitted onto the rubber tube (2), and the top end of the fastening sleeve (5) can abut against the fixing block (24), the fastening sleeve (5) is also threadedly connected to the mounting cavity (12) to restrict the fixing block (24) within the mounting cavity (12).

7. A micro-controlled dispensing pen according to claim 6, characterized in that, The inner wall of the fastening sleeve (5) has a circumferential array of multiple abutment blocks (50) that synchronously abut against the outer wall of the rubber tube (2).

8. A micro-controlled dispensing pen according to claim 1, characterized in that, It also includes a pen cap (6), and the rubber tube (2) is provided with a connecting end (25) that coaxially covers the nozzle (22). The pen cap (6) is detachably connected to the connecting end (25) to open or close the nozzle (22).

9. A micro-controlled dispensing pen according to claim 1, characterized in that, It also includes a cabin (7), which has a sealed cavity (70) with a soft rubber block (71) inside; the pen barrel (1) is detachably installed on the cabin (7), and the rubber tube (2) can penetrate into the sealed cavity (70) and make the rubber nozzle (22) abut against the soft rubber block (71). The soft rubber block (71) deforms under pressure and tightly seals the rubber nozzle (22).

10. A micro-controlled dispensing pen according to claim 9, characterized in that, The cabin (7) is also provided with a positioning groove (72) and a slot (73) that are connected to each other. The positioning groove (72) is located above the slot (73). A magnetic block (72x) is installed on the side wall of the positioning groove (72). The bottom wall of the slot (73) is provided with a notch (730) that connects to the sealing cavity (70). The pen barrel (1) slides into the positioning groove (72), and the end of the pen barrel (1) can abut against the bottom wall of the positioning groove (72). The rubber tube (2) can penetrate through the notch (730) into the sealing cavity (70), and the rubber nozzle (22) abuts against the soft rubber block (71). A magnetic block (1x) is also installed inside the pen barrel (1). The magnetic block (72x) can attract the magnetic block (1x) to fix the pen barrel (1) on the cabin (7).

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