Dispensing needle replacing structure of dispensing machine

Abstract

The utility model relates to the technical field of glue dispensing needle replacing structures, and discloses a glue dispensing needle replacing structure of a glue dispensing machine, which comprises a space displacement mechanism, a needle seat bracket, a fixed seat, a motor, a magnetic sleeve seat, a clamping groove, a glue dispensing needle and an anti-falling mechanism. Compared with a traditional manual replacement mode, tedious manual operation of an operator is not needed, the replacement time is greatly saved, the dispensing machine can be put into the next round of dispensing work more quickly, the production yield in unit time is remarkably improved, the overall production efficiency is effectively improved, and the production cost is reduced. In the replacement process, the workload and the working intensity of operators are reduced, and meanwhile, the risk of misoperation caused by factors such as fatigue of the operators is also reduced; the clamping grooves for the dispensing needles with different specifications are formed in the needle seat bracket, so that the dispensing requirements of various different chips can be met, the dispensing needles can be quickly and accurately switched, and the dispensing machine can adapt to diversified production tasks.

Description

A dispensing machine with a replaceable dispensing needle structure Technical Field

[0001] This utility model relates to the technical field of dispensing needle replacement structure, specifically a dispensing machine dispensing needle replacement structure. Background Technology

[0002] In the semiconductor packaging industry, with the continuous development of chiplet technology, it has become a trend to package multiple chips of different sizes together. Due to the differences in chip size, the size and shape of the dispensing needles required for dispensing operations vary. Currently, when performing packaging operations on a dispensing machine, dispensing needles are often changed manually to meet the dispensing requirements of different chips. However, this manual replacement method has significant drawbacks. When dispensing needles are changed frequently, it consumes a lot of time, leading to a significant reduction in production efficiency. This is especially true when a single device needs to be packaged in one go, where the requirements for needle replacement efficiency are extremely high, and manual needle replacement cannot meet the demands of high-efficiency production. Therefore, developing a structure that can quickly replace dispensing needles is of significant practical importance. Summary of the Invention

[0003] The present invention provides a structure for replacing the dispensing needle in a dispensing machine, which solves the problem that manually replacing the dispensing needle would consume a lot of time and lead to a significant reduction in production efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A dispensing machine needle replacement structure includes a spatial displacement mechanism and a needle holder bracket. The spatial displacement mechanism has a fixed base, and the fixed base has a motor. The output end of the motor has a magnetic sleeve. The needle holder bracket has multiple slots, each slot holding a dispensing needle. A corresponding anti-dislodgement mechanism is provided on the needle holder bracket for each slot. The magnetic sleeve is magnetically connected to the dispensing needle. The spatial displacement mechanism can utilize existing technology, as long as it can drive the needle holder bracket to perform spatial displacement, such as an XYZ axis displacement module. The magnetic sleeve is the core component for achieving automatic needle adsorption and separation, thus enabling rapid needle replacement. The main structure of the magnetic sleeve is typically sleeve-shaped, and the material is generally a metal with good magnetic permeability, such as iron or nickel alloys, to ensure stable and sufficiently strong magnetism. Inside, a permanent magnet or an electromagnetic coil may be installed. If it is a permanent magnet, it provides continuous and stable magnetism; if it is an electromagnetic coil, the strength and presence of magnetism can be adjusted by controlling the current, enhancing the flexibility of the device. In use, the spatial displacement mechanism can drive the needle holder bracket and corresponding components to move spatially, thereby enabling the magnetic sleeve to connect or disconnect with the dispensing needle magnetically, and to move the dispensing needle outward from the slot to work. It also enables the corresponding slot to move from the outside to the inside to reset the dispensing needle, thus facilitating the replacement of the next dispensing needle. Simultaneously, when the magnetic sleeve connects to the dispensing needle downward or returns it to the slot, it presses down on the anti-drop mechanism, exposing the outer opening of the slot that was previously blocked by the anti-drop mechanism. When the dispensing needle is removed or returned, the magnetic sleeve stops pressing down on the anti-drop mechanism as it moves upward away from the dispensing needle, thus resetting and blocking the slot. Compared to traditional manual replacement methods, the structure of this application eliminates the need for tedious manual operations by operators, significantly reducing replacement time and allowing the dispensing machine to be ready for the next round of dispensing work more quickly. This significantly increases production output per unit time, effectively improving overall production efficiency. Furthermore, the replacement process reduces the workload and intensity of operators, while also lowering the risk of operational errors due to fatigue. By setting multiple slots for dispensing needles of different specifications on the needle holder, it can meet the dispensing needs of various chips, enabling quick and accurate switching of dispensing needles. This allows the dispensing machine to adapt to diverse production tasks, enhancing the versatility and flexibility of the production equipment. The magnetic connection method using a magnetic sleeve and dispensing needle results in a simple and practical connection structure.

[0006] Furthermore, the dispensing needle is equipped with a chuck, and the chuck groove has a corresponding slot. With this structure, the chuck can slide stably within the slot when the dispensing needle enters and exits the slot, ensuring the accurate installation position of the dispensing needle within the slot and preventing it from shaking during operation, thus improving the stability of the dispensing needle.

[0007] Furthermore, the magnetic sleeve has an insertion hole, and the upper end of the dispensing needle is provided with an upper rod that can be inserted into the insertion hole. With this structure, when the magnetic sleeve moves downwards towards the dispensing needle, the upper rod can accurately insert into the insertion hole, making the connection between the magnetic sleeve and the dispensing needle tighter and more precise. It also enhances the magnetic attraction between the two, ensuring a stable and reliable connection during the removal and operation of the dispensing needle.

[0008] Furthermore, the upper rod is provided with a bevel. This bevel makes the upper rod easier to insert into the insertion hole, acts as a guide, prevents insertion deviation, and improves the efficiency and accuracy of dispensing needle replacement.

[0009] Furthermore, the anti-dislodgement mechanism includes a guide rod slidably connected to the needle holder bracket. The upper end of the guide rod is provided with a long strip pressure plate for downward pressing. The orientation of the long strip pressure plate is consistent with the displacement direction of the dispensing needle on the needle holder bracket. The lower end of the guide rod is provided with a connecting support plate. The outer end of the connecting support plate is provided with a baffle for blocking the slot. An elastic reset member is provided between the long strip pressure plate and the needle holder bracket. With this structure, when the magnetic sleeve moves downward, it presses down the long strip pressure plate. The long strip pressure plate drives the guide rod to slide down the needle holder bracket, thereby causing the connecting support plate and the baffle to move downward, exposing the outer opening of the slot, facilitating the removal or return of the dispensing needle. When the magnetic sleeve detaches from the dispensing needle upward, the elastic reset member resets the long strip pressure plate, causing the baffle to block the slot again, preventing the dispensing needle from accidentally falling off.

[0010] Furthermore, the elastic reset component is a spring, and the spring is sleeved on the guide rod. The spring structure is simple, its elastic performance is stable, and its sleeve on the guide rod ensures that it does not shift during extension and retraction, thus ensuring that the anti-dislodgement mechanism can reliably reset and function.

[0011] Furthermore, the magnetic sleeve is equipped with bullseye ball bearings that cooperate with the elongated pressure plate. Using bullseye ball bearings reduces the friction between the magnetic sleeve and the elongated pressure plate, making the magnetic sleeve move more smoothly during downward and upward movements, reducing wear between components, and extending the service life of the equipment.

[0012] Beneficial effects: Compared with the traditional manual replacement method, the structure of this application eliminates the need for operators to perform tedious manual operations, significantly saving replacement time and allowing the dispensing machine to be put into the next round of dispensing work more quickly. This significantly increases production output per unit time, effectively improving overall production efficiency. Furthermore, the replacement process reduces the workload and intensity of operators, while also lowering the risk of operational errors due to fatigue. By setting multiple slots for dispensing needles of different specifications on the needle holder, it can meet the dispensing needs of various chips, allowing for quick and accurate switching of dispensing needles. This enables the dispensing machine to adapt to diverse production tasks, enhancing the versatility and flexibility of the production equipment. The magnetic connection method using a magnetic sleeve and dispensing needle results in a simple and practical connection structure. Attached Figure Description

[0013] Figure 1 is a slanted view of the spatial displacement mechanism in this embodiment;

[0014] Figure 2 is a schematic diagram of the needle holder bracket in this embodiment.

[0015] Reference numerals in the attached drawings: 1. Spatial displacement mechanism; 2. Needle holder bracket; 3. Fixed seat; 4. Motor; 5. Magnetic sleeve; 501. Bullseye ball bearing; 6. Slot; 601. Dispensing needle; 7. Chuck; 701. Upper rod; 702. Inclined surface; 703. Anti-drop mechanism; 8. Guide rod; 801. Long strip pressure plate; 802. Connecting support plate; 803. Baffle; 804. Detailed Implementation

[0016] The following will provide a more detailed description of the technical solution for replacing the dispensing needle in a dispensing machine, in conjunction with specific embodiments.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] As shown in Figures 1 and 2, a dispensing machine needle replacement structure according to this embodiment includes a spatial displacement mechanism 1 and a needle holder bracket 2. A fixed base 3 is provided on the spatial displacement mechanism 1, and a motor 4 is provided on the fixed base 3. A magnetic sleeve 5 is provided at the output end of the motor 4. Multiple slots 6 are provided on the needle holder bracket 2, and a dispensing needle 7 is held in each slot 6. An anti-dislodgement mechanism 8 is provided on the needle holder bracket 2 corresponding to each slot 6. The magnetic sleeve 5 is magnetically connected to the connecting end of the dispensing needle 7. A chuck 701 is provided on the dispensing needle 7, and a corresponding groove 601 is provided on the slots 6. An insertion hole is provided on the magnetic sleeve 5, and an upper rod 702 is provided at the upper end of the dispensing needle 7 for insertion into the insertion hole. An inclined surface 703 is provided on the upper rod 702. The anti-drop mechanism 8 includes a guide rod 801 slidably connected to the needle holder bracket 2. The upper end of the guide rod 801 is provided with a long strip pressure plate 802 for downward pressing. The orientation of the long strip pressure plate 802 is consistent with the displacement direction of the dispensing needle 7 on the needle holder bracket 2. The lower end of the guide rod 801 is provided with a connecting support plate 803. The outer end of the connecting support plate 803 is provided with a baffle 804 for blocking the slot 6. An elastic reset member is provided between the long strip pressure plate 802 and the needle holder bracket 2. The elastic reset member is a spring, and the spring is sleeved on the guide rod 801. The magnetic sleeve 5 is provided with a bullseye ball bearing 501 that cooperates with the long strip pressure plate 802.

[0019] In use, the spatial displacement mechanism 1 can drive the needle holder bracket 2 and corresponding components to move spatially, thereby enabling the magnetic sleeve 5 to magnetically connect or separate from the connection end of the dispensing needle 7, and enabling the dispensing needle 7 to move outward from the slot 6 to work, and the corresponding slot 6 to move from the outside to the inside to reset the dispensing needle 7, thus enabling the replacement of the next dispensing needle 7; at the same time, when the magnetic sleeve 5 connects the dispensing needle 7 downward or returns the dispensing needle 7 to the slot 6, it will press down on the anti-drop mechanism 8, thereby exposing the outer opening of the slot 6 which was blocked by the anti-drop mechanism 8. In conjunction with the removal or return of the dispensing needle 7, when the magnetic sleeve 5 is detached from the dispensing needle 7 upward, it will also stop pressing down on the anti-drop mechanism 8, thereby resetting and blocking the slot 6. Compared to traditional manual replacement methods, the structure of this application eliminates the need for tedious manual operations by operators, significantly reducing replacement time and allowing the dispensing machine to be put into the next round of dispensing work more quickly. This significantly increases production output per unit time, effectively improving overall production efficiency. Furthermore, the replacement process reduces the workload and intensity of operators, while also lowering the risk of operational errors due to fatigue. By setting multiple slots 6 for dispensing needles 7 of different specifications on the needle holder 2, it can meet the dispensing needs of various chips, allowing for quick and accurate switching of the dispensing needles 7. This enables the dispensing machine to adapt to diverse production tasks, enhancing the versatility and flexibility of the production equipment. The magnetic connection method using a magnetic sleeve 5 and dispensing needles 7 results in a simple and practical connection structure.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dispensing machine needle replacement structure, characterized in that: The device includes a spatial displacement mechanism and a needle holder bracket. The spatial displacement mechanism is equipped with a fixed base, and the fixed base is equipped with a motor. The output end of the motor is equipped with a magnetic sleeve. The needle holder bracket has multiple slots, and each slot holds a dispensing needle. The needle holder bracket is equipped with an anti-drop mechanism corresponding to each slot. The magnetic sleeve is magnetically connected to the connection end of the dispensing needle.

2. The dispensing needle replacement structure for a dispensing machine according to claim 1, characterized in that: The dispensing needle is equipped with a chuck, and the chuck slot has a corresponding groove.

3. The dispensing needle replacement structure for a dispensing machine according to claim 1, characterized in that: The magnetic sleeve has an insertion hole, and the upper end of the dispensing needle has an upper rod that can be inserted into the insertion hole.

4. The glue dispensing needle replacement structure of claim 3, wherein: An inclined surface is provided on the upper rod.

5. The glue dispensing needle replacement structure of claim 1, wherein: The anti-drop mechanism includes a guide rod slidably connected to the needle holder bracket. The upper end of the guide rod is provided with a long strip pressure plate for cooperating with downward pressure. The setting direction of the long strip pressure plate is consistent with the displacement direction of the dispensing needle on the needle holder bracket. The lower end of the guide rod is provided with a connecting support plate. The outer end of the connecting support plate is provided with a baffle for blocking the slot. An elastic reset member is provided between the long strip pressure plate and the needle holder bracket.

6. The glue dispensing needle replacement structure of claim 5, wherein: The elastic reset element is a spring, and the spring is sleeved on the guide rod.

7. The dispensing needle replacement structure for a dispensing machine according to claim 5, characterized in that: The magnetic sleeve is equipped with bullseye balls that cooperate with the long strip pressure plate.

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