A drip-proof structure of a precision glue dispenser

Abstract

The utility model provides a kind of anti-dripping structure of precision glue dispensing machine, including workbench, the top of the workbench is fixedly installed with mounting bracket, the top of the mounting bracket is fixedly installed with glue storage cavity, the outside of the glue storage cavity is connected with communicating pipe, the one end of the communicating pipe away from glue storage cavity is connected with metering instrument, the bottom of the metering instrument is fixedly installed with connecting column, the outside of the connecting column is provided with glue dispensing assembly, the inside of the glue dispensing assembly is provided with anti-dripping assembly.The anti-dripping structure of precision glue dispensing machine, by setting anti-dripping assembly, the telescopic stroke of electric cylinder can be accurately controlled by motor, the accurate conduction or sealing of through hole one and through hole two is realized, the rotation of the placement groove in extrusion block is driven by motor and connecting block, the through hole one and through hole two are misaligned, the outside of connecting block is tightly combined with the inner wall of extrusion block, and the auxiliary extrusion of press button is cooperated, further block the flow of glue residue, greatly reduce the pollution and scrap of workpiece caused by dripping.

Description

Technical Field

[0001] This utility model relates to the field of precision dispensing technology, and in particular to an anti-drip structure for a precision dispensing machine. Background Technology

[0002] In the field of precision manufacturing, dispensing machines are key equipment for achieving precise adhesive coating. Their operational accuracy directly affects the quality and pass rate of products. From semiconductor packaging and electronic component assembly to biomedical consumable production, the precision requirements of dispensing processes have reached the sub-micron level. Even tiny errors can lead to a significant decline in product performance. However, existing precision dispensing machines generally suffer from adhesive dripping problems in actual use. After the dispensing machine completes a dispensing operation, the residual adhesive in the dispensing needle will slowly drip down under the action of gravity. The residual adhesive will not only contaminate the worktable and the workpiece to be processed, leading to an increase in the workpiece scrap rate, but also cause adhesive waste and increase production costs. Therefore, there is a particular need for a drip-proof structure for precision dispensing machines.

[0003] Chinese Patent CN221775397U, published on September 27, 2024, discloses a paper box anti-drip dispensing machine. It uses a motor to control an electromagnet and a receiving tray to rotate, causing the tray to move quickly below the dispensing head. This aligns the storage slot with the injection port of the dispensing head, allowing it to collect any dripping glue and preventing contamination of the machine. However, this anti-drip dispensing machine relies on a single seal or a simple mechanical shielding structure to prevent dripping, depending on the static adhesion between the seal and the dispensing needle. To achieve a seal, the seals are prone to corrosion and aging over long-term use, leading to material embrittlement. At the same time, the mechanical friction during high-frequency dispensing operations accelerates the wear of the seals. The typical single-station, single-set dispensing structure means that each dispensing unit can only process one workpiece at a time. When manual or robotic arms are loading the workpiece, the dispensing unit must be stopped. The glue output is controlled solely by the weight of the glue storage chamber or simple air pressure. The position of the seals is adjusted manually to compensate for wear, and each adjustment requires stopping the machine for calibration. This is not only cumbersome to operate, but also prone to problems such as over- or under-sealing due to human error. Utility Model Content

[0004] The purpose of this invention is to provide an anti-drip structure for a precision dispensing machine, addressing the issues raised in the background section regarding existing anti-drip dispensing machines for cardboard boxes. These machines rely on a single seal or a simple mechanical shielding structure to prevent dripping, depending on the static adhesion between the seal and the dispensing needle. However, the seal is prone to corrosion and aging over time, leading to material embrittlement. Furthermore, the mechanical friction during high-frequency dispensing operations accelerates seal wear. Typically, a single-station, single-unit dispensing structure is used, where each dispensing assembly can only process one workpiece at a time. When manual or robotic arms are handling the workpiece, the dispensing assembly must be stopped, relying solely on the weight of the glue reservoir or simple air pressure to control the glue output. The seal position is manually adjusted to compensate for wear, requiring machine stoppage and calibration each time. This process is not only cumbersome but also prone to over- or under-sealing due to human error.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drip-proof structure for a precision dispensing machine, comprising a worktable, a support leg fixedly mounted on the bottom of the worktable, a fixed base fixedly mounted on the top of the worktable, a sliding groove formed on the top of the fixed base, a dispensing table slidably connected to the top of the fixed base, an electromagnetic slide rail fixedly mounted on the bottom of the dispensing table, a mounting frame fixedly mounted on the top of the worktable, a control box fixedly mounted on the outer side of the mounting frame, a glue storage cavity fixedly mounted on the top of the mounting frame, a connecting pipe extending through the outer side of the glue storage cavity, and a metering instrument extending through the end of the connecting pipe away from the glue storage cavity. The measuring instrument has a connecting column fixedly installed at its bottom. A dispensing assembly is provided on the outer side of the connecting column, and an anti-drip assembly is provided on the inner side of the dispensing assembly. The anti-drip assembly includes a fixing frame, which is installed on the inner side of the dispensing assembly. A motor is fixedly installed at the bottom of the fixing frame, and an electric cylinder is fixedly installed at the output end of the motor. A telescopic rod is fixedly installed at the movable end of the electric cylinder, and a connecting block is fixedly installed at the end of the telescopic rod away from the electric cylinder. A through hole one is opened at the top of the connecting block, and an extrusion block is provided on the outer side of the connecting block. A placement groove is opened inside the extrusion block, and a through hole two is opened at the top of the extrusion block.

[0006] Preferably, the dispensing assembly includes a fixing plate, which is installed on the outside of the connecting column. A sliding hole is provided on the outside of the fixing plate. An electromagnetic sliding block is slidably connected inside the fixing plate. A silicone sleeve is fixedly installed on the outside of the electromagnetic sliding block. A pressing button is fixedly installed on the outside of the silicone sleeve. A dispensing tube is provided inside the silicone sleeve, and a dispensing needle is provided at the bottom of the dispensing tube.

[0007] Preferably, the dispensing assembly and the anti-drip assembly are each provided with four identical sets, and the electromagnetic sliding block is adapted to the sliding hole.

[0008] Preferably, the push buttons are provided in two identical sets, and the two sets of push buttons are symmetrically distributed about the vertical center line of the silicone sleeve.

[0009] Preferably, the fixing bracket is located inside the dispensing tube, and the fixing bracket is fixedly connected to the inner wall of the dispensing tube.

[0010] Preferably, the connecting block is adapted to the placement groove, and the diameter of the first through hole is consistent with the diameter of the second through hole.

[0011] Preferably, the slide groove and the electromagnetic slide rail are provided in multiple identical sets, the slide groove and the electromagnetic slide rail are adapted to each other, the fixed seat, slide groove, dispensing table and electromagnetic slide rail are provided in two identical sets, and the two sets of fixed seat, slide groove, dispensing table and electromagnetic slide rail are symmetrically distributed about the vertical center line of the worktable.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The anti-drip structure of this precision dispensing machine, by setting an anti-drip component, allows for precise control of the extension and retraction stroke of the electric cylinder via a motor, driving the telescopic rod to push the connecting block to move within the placement groove of the extrusion block, achieving precise connection or sealing between through hole one and through hole two. When the dispensing operation stops, the motor drives the connecting block to rotate within the placement groove of the extrusion block, causing through hole one and through hole two to misalign, and the inner wall of the extrusion block to tightly adhere to the outer side of the connecting block, forming a double seal. Simultaneously, the silicone sleeve in the dispensing component can wrap the dispensing tube, and with the auxiliary extrusion of the pressing button, further blocking the flow of residual glue. Four identical dispensing components and anti-drip components can simultaneously perform dispensing operations on multiple workpieces, and each set of components is independently controlled without interference. The metering instrument can monitor and control the glue delivery volume in real time, meeting the extremely high precision requirements for glue dosage in scenarios such as semiconductor packaging and medical device manufacturing, significantly reducing workpiece contamination and scrap caused by dripping, and lowering production costs. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the fixed plate and the electromagnetic sliding block of this utility model. Figure 3 This is a schematic diagram of the interaction between the dispensing tube and the motor in this utility model; Figure 4 This is a schematic diagram of the structure in which the connecting block and the placement groove of this utility model cooperate with each other.

[0014] In the diagram: 1. Workbench; 2. Support leg; 3. Fixed base; 4. Slide groove; 5. Dispensing table; 6. Electromagnetic slide rail; 7. Mounting bracket; 8. Control box; 9. Glue storage chamber; 10. Connecting pipe; 11. Measuring instrument; 12. Connecting column; 13. Dispensing assembly; 1301. Fixed plate; 1302. Sliding hole; 1303. Electromagnetic sliding block; 1304. Silicone sleeve; 1305. Press button; 1306. Dispensing tube; 1307. Dispensing needle; 14. Anti-drip assembly; 1401. Fixed bracket; 1402. Motor; 1403. Electric cylinder; 1404. Telescopic rod; 1405. Connecting block; 1406. Through hole one; 1407. Extrusion block; 1408. Placement groove; 1409. Through hole two. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4This utility model provides a technical solution: an anti-drip structure for a precision dispensing machine, including a worktable 1, a support leg 2 fixedly installed at the bottom of the worktable 1, a fixed seat 3 fixedly installed at the top of the worktable 1, a sliding groove 4 opened at the top of the fixed seat 3, a dispensing table 5 slidably connected to the top of the fixed seat 3, an electromagnetic slide rail 6 fixedly installed at the bottom of the dispensing table 5, a mounting frame 7 fixedly installed at the top of the worktable 1, a control box 8 fixedly installed on the outside of the mounting frame 7, a glue storage cavity 9 fixedly installed at the top of the mounting frame 7, and a connecting pipe penetrating the outside of the glue storage cavity 9. 10. A measuring instrument 11 is connected to the end of the connecting pipe 10 away from the glue storage chamber 9. A connecting post 12 is fixedly installed at the bottom of the measuring instrument 11. A dispensing assembly 13 is provided on the outer side of the connecting post 12. An anti-drip assembly 14 is provided on the inner side of the dispensing assembly 13. The anti-drip assembly 14 includes a fixing frame 1401, which is installed inside the dispensing assembly 13. A motor 1402 is fixedly installed at the bottom of the fixing frame 1401. An electric cylinder 1403 is fixedly installed at the output end of the motor 1402. A telescopic extension device is fixedly installed at the movable end of the electric cylinder 1403. A connecting block 1405 is fixedly installed at one end of the telescopic rod 1404 away from the electric cylinder 1403. A through hole 1406 is provided on the top of the connecting block 1405, and a pressing block 1407 is provided on the outside of the connecting block 1405. A placement groove 1408 is provided inside the pressing block 1407, and a second through hole 1409 is provided on the top of the pressing block 1407. By incorporating an anti-drip component 14, the extension and retraction stroke of the electric cylinder 1403 can be precisely controlled by the motor 1402, driving the telescopic rod 1404 to push the connecting block 1405 against the pressing block 1406. The 7 moves within the placement groove 1408 to achieve precise connection or sealing between through hole one 1406 and through hole two 1409. When the dispensing operation stops, the motor 1402 drives the connecting block 1405 to rotate in the placement groove 1408 in the extrusion block 1407, causing through hole one 1406 and through hole two 1409 to be misaligned. The inner wall of the extrusion block 1407 tightly fits the outer side of the connecting block 1405, forming a double seal. At the same time, the silicone sleeve 1304 in the dispensing assembly 13 can wrap the dispensing tube 1306. With the auxiliary extrusion of the pressing button 1305, the flow of residual glue is further blocked.

[0017] Furthermore, the dispensing assembly 13 includes a fixing plate 1301, which is installed on the outside of the connecting post 12. A sliding hole 1302 is provided on the outside of the fixing plate 1301. An electromagnetic sliding block 1303 is slidably connected inside the fixing plate 1301. A silicone sleeve 1304 is fixedly installed on the outside of the electromagnetic sliding block 1303. A pressing button 1305 is fixedly installed on the outside of the silicone sleeve 1304. A dispensing tube 1306 is provided inside the silicone sleeve 1304, and a dispensing needle 1307 is provided at the bottom of the dispensing tube 1306. With the dispensing assembly 13, the electromagnetic sliding block 1303 can slide along... The hole 1302 slides stably, allowing for position adjustment of the dispensing tube 1306 and dispensing needle 1307 to accommodate workpieces of different sizes and dispensing positions. The silicone sleeve 1304 tightly wraps around the dispensing tube 1306, providing initial sealing and constraint. The operation of the button 1305 causes the silicone sleeve 1304 to contract, further squeezing the inner wall of the dispensing tube 1306 and preventing residual flow of glue after dispensing stops. Together with the anti-drip component 14, it forms multiple anti-drip protections. At the same time, the setting of the dispensing needle 1307 can precisely control the landing point of the glue output, improving the accuracy of the dispensing operation.

[0018] Furthermore, both the dispensing assembly 13 and the anti-drip assembly 14 are equipped with four identical sets of electromagnetic sliding blocks 1303 and sliding holes 1302. By setting the electromagnetic sliding blocks 1303 and sliding holes 1302, the smoothness and accuracy of the sliding process are ensured, avoiding the dispensing position deviation caused by excessive sliding gap, thus ensuring dispensing accuracy. The four independent sets of dispensing assemblies 13 and anti-drip assemblies 14 can simultaneously perform dispensing operations on four workpieces, or perform synchronous dispensing on different positions of the same workpiece, greatly improving work efficiency. Moreover, the components of each set are independently controlled, and the parameters can be adjusted according to different dispensing requirements without interfering with each other, enhancing the versatility and flexibility of the equipment.

[0019] Furthermore, two identical sets of push buttons 1305 are provided, and the two sets of push buttons 1305 are symmetrically distributed about the vertical center line of the silicone sleeve 1304. By setting two sets of push buttons 1305, the symmetrically distributed push buttons 1305 can apply symmetrical squeezing force to the silicone sleeve 1304 during operation, so that the silicone sleeve 1304 shrinks evenly and fits against the inner wall of the dispensing tube 1306, avoiding uneven sealing or deformation of the dispensing tube 1306 caused by unilateral squeezing, ensuring a more stable blocking effect on residual glue. At the same time, the symmetrical structure makes it easier for operators or automated equipment to apply force symmetrically, reducing the difficulty of operation and improving the reliability of anti-drip operation.

[0020] Furthermore, the fixing bracket 1401 is located inside the dispensing tube 1306, and the fixing bracket 1401 is fixedly connected to the inner wall of the dispensing tube 1306. By setting the fixing bracket 1401 and the dispensing tube 1306, it is ensured that the components will not shake or shift during dispensing operations or anti-drip actions, ensuring the relative positional accuracy of the connecting block 1405 and the extrusion block 1407, thereby ensuring the precise alignment or misalignment and sealing of the through hole one 1406 and the through hole two 1409, avoiding anti-drip failure due to component loosening, and improving the working stability of the anti-drip assembly 14.

[0021] Furthermore, the connecting block 1405 is adapted to the placement groove 1408, and the diameter of the first through hole 1406 is consistent with the diameter of the second through hole 1409. By setting the connecting block 1405 and the placement groove 1408, a tight fit between the two is ensured, reducing gaps. When the first through hole 1406 and the second through hole 1409 are misaligned, the inner wall of the extrusion block 1407 can tightly wrap the outer side of the connecting block 1405 to form an effective seal and prevent glue leakage. The consistent diameter of the first through hole 1406 and the second through hole 1409 ensures stable flow when the glue is being conducted, avoiding glue flow obstruction or residue caused by differences in hole diameter. This balances the smoothness during dispensing and the sealing performance when stopping, improving the precise control of glue delivery.

[0022] Furthermore, multiple identical sets of slide rails 4 and electromagnetic rails 6 are provided. Slide rails 4 and electromagnetic rails 6 are compatible. Two identical sets of fixed seats 3, slide rails 4, dispensing tables 5, and electromagnetic rails 6 are provided, and the two sets of fixed seats 3, slide rails 4, dispensing tables 5, and electromagnetic rails 6 are symmetrically distributed about the vertical center line of the worktable 1. By setting two sets of fixed seats 3, slide rails 4, dispensing tables 5, and electromagnetic rails 6, multiple sets of compatible slide rails 4 and electromagnetic rails 6 provide multiple guides and supports for the sliding of the dispensing table 5, ensuring that the dispensing table 5 slides smoothly when carrying workpieces, avoiding tilting or jamming caused by excessive force on a single set of rails, and improving the operational stability of the dispensing table 5. The two symmetrically distributed structures can realize dual-station operation. When one set of dispensing tables 5 is performing dispensing operations, the other set can simultaneously perform workpiece loading or unloading, reducing equipment idle time and greatly improving production efficiency. At the same time, the symmetrical layout makes the worktable 1 bear force evenly, reducing the risk of structural deformation after long-term operation of the equipment and extending the service life of the equipment.

[0023] Working Principle: First, the operator takes the workbench 1 and, at the pre-set mounting holes on its bottom, secures the support leg 2 with bolts, ensuring a stable connection between the support leg 2 and the workbench 1. Visually and manually inspect the support leg 2, fixed base 3, mounting bracket 7, and other fixed components to ensure they are not loose. Check the connections of the connecting pipe 10 and dispensing pipe 1306 to ensure they are undamaged and well-sealed. Test the sliding function of the electromagnetic slide rail 6 and electromagnetic sliding block 1303, and the start / stop and running status of the motor 1402 and electric cylinder 1403 to ensure all moving parts are working properly. Check if the display of the measuring instrument 11 is normal, and if the buttons and screen of the control box 8 are functioning correctly. Open the filling port cover on top of the glue storage chamber 9 and slowly inject the glue that meets the operational requirements into the storage chamber. Inside the glue chamber 9, observe the liquid level scale during the injection process to prevent glue overflow. After injection, close the feed port cover. Start the pre-treatment program of the glue chamber 9 through the control box 8 to bring the glue to a suitable dispensing state. On the operation interface of the control box 8, set the dispensing parameters according to the requirements of the workpiece to be dispensed. Through the correlation function of the metering instrument 11, set the single dispensing volume and glue delivery speed. According to the workpiece size and dispensing position, set the moving path and moving speed of the dispensing table 5, the sliding distance of the electromagnetic sliding block 1303, and the action parameters of the anti-drip component 14. Place the standard test workpiece on the dispensing table 5. Start the electromagnetic slide rail 6 through the control box 8 to drive the dispensing table 5 to move along the slide chute 4 to the dispensing area. Adjust the position of the dispensing table 5 so that... The dispensing position of the test workpiece is aligned with the dispensing needle 1307. By controlling the sliding of the electromagnetic sliding block 1303 within the sliding hole 1302, the height and horizontal position of the dispensing assembly 13 are finely adjusted to ensure that the distance between the dispensing needle 1307 and the surface of the test workpiece meets the dispensing requirements. The motor 1402 is started, controlling the electric cylinder 1403 to retract, which drives the telescopic rod 1404 to pull the connecting block 1405 within the placement groove 1408, causing the through hole 1406 and through hole 2 1409 to be completely misaligned. At this time, a small amount of compressed air is introduced into the dispensing tube 1306 through the metering instrument 11. The contact point between the extrusion block 1407 and the connecting block 1405, and the outlet of the dispensing needle 1307 are observed to confirm that there is no air leakage. The above misaligned sealing state is maintained, and the operation control box 8 is triggered. Pressing button 1305 causes the silicone sleeve 1304 to contract and squeeze the dispensing tube 1306. Compressed air is then introduced again through metering instrument 11. The contact point between the dispensing tube 1306 and the silicone sleeve 1304, and the outlet of the dispensing needle 1307 are observed to confirm there is no air leakage. The workpiece to be dispensed is placed on the dispensing table 5 according to the positioning marks, and the workpiece is fixed by the tooling fixture to ensure that the workpiece does not shift or shake during the dispensing process. After confirming that all parameter settings are correct in the control box 8, metering instrument 11 monitors and controls the glue to be delivered from the glue storage chamber 9 to the dispensing tube 1306 through the connecting pipe 10 in real time. At the same time, the anti-drip component 14 keeps the through hole 1406 and through hole 2 1409 in a conductive state. The glue is accurately dripped onto the dispensing position of the workpiece through the dispensing needle 1307.During the process, the electromagnetic sliding block 1303 can finely adjust the position of the dispensing assembly 13 along the sliding hole 1302 according to the dispensing position requirements, ensuring accurate dispensing at each location. After dispensing a batch of workpieces, turn off the equipment power. First, disassemble the dispensing needle 1307 and soak it in a special solvent to remove residual glue and prevent blockage. After cleaning, check all moving parts. If any parts are damaged, replace them with the same model parts in time. If the equipment is not used for a long time, drain the glue and cleaning solvent from the glue storage chamber 9, connecting pipe 10, and dispensing tube 1306, keep the pipes dry, and cover the equipment with a dust cover to prevent dust from entering and to prevent parts from jamming or malfunctioning due to long-term inactivity.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A drip-proof structure for a precision dispensing machine, comprising a worktable (1), characterized in that: The bottom of the workbench (1) is fixedly equipped with a support leg (2), the top of the workbench (1) is fixedly equipped with a fixed seat (3), the top of the fixed seat (3) is provided with a sliding groove (4), the top of the fixed seat (3) is slidably connected to a dispensing table (5), the bottom of the dispensing table (5) is fixedly equipped with an electromagnetic slide rail (6), the top of the workbench (1) is fixedly equipped with a mounting frame (7), the outside of the mounting frame (7) is fixedly equipped with a control box (8), the top of the mounting frame (7) is fixedly equipped with a glue storage cavity (9), the outside of the glue storage cavity (9) is connected to a connecting pipe (10), the end of the connecting pipe (10) away from the glue storage cavity (9) is connected to a meter (11), the bottom of the meter (11) is fixedly equipped with a connecting column (12), the outside of the connecting column (12) is provided with a dispensing assembly (13), and the inside of the dispensing assembly (13) is provided with an anti-drip assembly (14). The anti-drip component (14) includes a fixing frame (1401), which is installed inside the dispensing component (13). A motor (1402) is fixedly installed at the bottom of the fixing frame (1401). An electric cylinder (1403) is fixedly installed at the output end of the motor (1402). A telescopic rod (1404) is fixedly installed at the movable end of the electric cylinder (1403). A connecting block (1405) is fixedly installed at the end of the telescopic rod (1404) away from the electric cylinder (1403). A through hole (1406) is opened at the top of the connecting block (1405). A pressing block (1407) is provided on the outside of the connecting block (1405). A placement groove (1408) is opened inside the pressing block (1407). A through hole (1409) is opened at the top of the pressing block (1407).

2. The anti-drip structure of a precision dispensing machine according to claim 1, characterized in that: The dispensing assembly (13) includes a fixing plate (1301), which is installed on the outside of the connecting column (12). A sliding hole (1302) is provided on the outside of the fixing plate (1301). An electromagnetic sliding block (1303) is slidably connected inside the fixing plate (1301). A silicone sleeve (1304) is fixedly installed on the outside of the electromagnetic sliding block (1303). A pressing button (1305) is fixedly installed on the outside of the silicone sleeve (1304). A dispensing tube (1306) is provided inside the silicone sleeve (1304). A dispensing needle (1307) is provided at the bottom of the dispensing tube (1306).

3. The anti-drip structure of a precision dispensing machine according to claim 2, characterized in that: The dispensing assembly (13) and the anti-drip assembly (14) are each provided with four identical sets, and the electromagnetic sliding block (1303) is adapted to the sliding hole (1302).

4. The anti-drip structure of a precision dispensing machine according to claim 2, characterized in that: The push button (1305) is provided in two identical sets, and the two sets of push buttons (1305) are symmetrically distributed about the vertical center line of the silicone sleeve (1304).

5. The anti-drip structure of a precision dispensing machine according to claim 2, characterized in that: The fixing bracket (1401) is located inside the dispensing tube (1306), and the fixing bracket (1401) is fixedly connected to the inner wall of the dispensing tube (1306).

6. The anti-drip structure of a precision dispensing machine according to claim 1, characterized in that: The connecting block (1405) is adapted to the placement groove (1408), and the diameter of the first through hole (1406) is consistent with the diameter of the second through hole (1409).

7. The anti-drip structure of a precision dispensing machine according to claim 1, characterized in that: The slide (4) and the electromagnetic slide rail (6) are provided in multiple identical sets. The slide (4) and the electromagnetic slide rail (6) are compatible. The fixed seat (3), slide (4), dispensing table (5) and electromagnetic slide rail (6) are provided in two identical sets. The two sets of fixed seat (3), slide (4), dispensing table (5) and electromagnetic slide rail (6) are symmetrically distributed about the vertical center line of the worktable (1).

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