Special linear motor for dispensing machine

Abstract

The utility model relates to the technical field of linear motors, and discloses a special linear motor for a dispensing machine, which comprises a dispensing machine body, a motor structure is fixedly arranged above the dispensing machine body, the motor structure comprises a linear motor body, and a protective shell is fixedly arranged around the outer surface of the linear motor body. A rubber seat is clamped around the lower end face of the linear motor body, a connecting shaft is fixedly arranged at the center of the lower end face of the linear motor body, a fixing seat is fixedly arranged at the position, close to the upper portion, of the outer surface of the connecting shaft, and a sliding rail is slidably connected to one side of the fixing seat. According to the utility model, the brushless direct-current linear motor is adopted, electric energy is directly converted into linear motion, an intermediate transmission link is not needed, so that high-precision and high-response-speed linear motion is realized, a high-resolution absolute value encoder is embedded in the linear motor, position information can be fed back in real time, accurate control in the dispensing process is ensured, and the dispensing precision is improved to + / -0.001 mm.

Description

Technical Field

[0001] The utility model relates to the technical field of linear motors, in particular to a special linear motor for a dispensing machine. Background Technique

[0002] A dispensing machine, also known as a glue coating machine, a glue dropping machine, a glue applying machine, a potting machine, etc., is specialized in controlling fluids. It is an automated machine that drops and coats fluids on the surface or inside of products, and can achieve three-dimensional and four-dimensional path dispensing, precise positioning, accurate glue control, no wire drawing, no glue leakage, and no glue dripping. The dispensing machine is mainly used to accurately dot, inject, coat, and drip glue, paint, and other liquids in the product process to each precise position of the product, and can be used to achieve dotting, line drawing, circles or arcs.

[0003] Traditional dispensing machines mostly use rotary motors in combination with lead screws or synchronous belts for transmission. The motors cannot be controlled, there is no heat dissipation device, and they cannot be used for a long time. There are problems such as cumulative transmission errors, slow response speed, and difficulty in achieving high-precision dispensing.

[0004] Therefore, the utility model provides a special linear motor for a dispensing machine to solve the problems raised in the above background technique. Content of the Utility Model

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a special linear motor for a dispensing machine. The linear motor is embedded with a high-resolution absolute encoder, which can real-time feedback position information to ensure precise control during the dispensing process.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a special linear motor for a dispensing machine, including a dispensing machine body, a motor structure is fixedly arranged above the dispensing machine body, the motor structure includes a linear motor body, a protective shell is fixedly arranged around the outer surface of the linear motor body, a rubber seat is clamped around the lower end surface of the linear motor body, a connecting shaft is fixedly arranged at the center position of the lower end surface of the linear motor body, a fixing seat is fixedly arranged at the upper position of the outer surface of the connecting shaft, a slide rail is slidably connected to one side of the fixing seat, a shaft seat is fixedly arranged at the lower position of the outer surface of the connecting shaft, and a working frame is slidably connected to the center position of the outer surface of the connecting shaft;

[0007] Through the above technical solution, the motor structure is used to drive the working frame to move, the linear motor body is used to provide a power source, the protective shell protects the linear motor body, the rubber seat can buffer and shock-absorb the linear motor body, the connecting shaft is used to transmit the power of the linear motor body to make the working frame move, the fixing seat is used to fix the position of the slide rail, the slide rail is used to guide the moving direction of the working frame, the shaft seat is used to fix the other side of the connecting shaft, and the working frame is used to install a dispensing head.

[0008] Furthermore, an encoder is fixedly arranged at a position on the front side of one side of the inner wall of the linear motor body, and the encoder is a high-resolution absolute encoder;

[0009] Through the above technical solution, the encoder is used to identify the moving position of the device, and the high-resolution absolute encoder can improve the stability and reliability of the system.

[0010] Furthermore, a microprocessor is fixedly arranged at a position on the rear side of one side of the inner wall of the linear motor body, and the microprocessor is equipped with an intelligent control unit;

[0011] Through the above technical solution, the microprocessor is used to control the device and receive instructions to work, and the intelligent control unit can make the microprocessor more intelligent.

[0012] Furthermore, a magnet is fixedly arranged at a position on the other side of the inner wall of the linear motor body, and there are magnetic circuits of the stator and the mover on both sides of the magnet;

[0013] Through the above technical solution, the magnet can strengthen the internal magnetic field intensity, and the magnet can optimize the magnetic circuits of the stator and the mover, improving the thrust density and positioning accuracy.

[0014] Furthermore, an air cooler is fixedly arranged at a position above the inner wall of the linear motor body, and the air cooler uses air cooling technology to dissipate heat from the linear motor body;

[0015] Through the above technical solution, the air cooler can cool the inside of the linear motor body, and can effectively extend the service life of the linear motor body.

[0016] Furthermore, the linear motor body adopts a brushless DC motor;

[0017] Through the above technical solution, the brushless DC motor can improve the working efficiency and reliability of the motor.

[0018] The utility model has the following beneficial effects:

[0019] 1. A special linear motor for a dispensing machine proposed by the utility model. By adopting a brushless DC linear motor, the electric energy is directly converted into linear motion without an intermediate transmission link, thereby realizing high-precision and high-response-speed linear motion. A high-resolution absolute encoder is embedded in the linear motor, which can real-time feedback position information, ensure precise control during the dispensing process, and improve the dispensing accuracy to ±0.001 mm.

[0020] 2. A special linear motor for a dispensing machine proposed by the present utility model. By equipping an intelligent control unit, this device can integrate motion control algorithms, support real-time calculation and adjustment of the dispensing path, and achieve precise execution of complex dispensing paths. An air-cooling machine is provided inside the motor, which can automatically adjust heat dissipation according to the working environment and dispensing frequency to ensure the stability and service life of the motor during long-term continuous operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Isometric view of the present utility model;

[0022] Figure 2 External view of the motor structure of the present utility model;

[0023] Figure 3 Schematic diagram of the motor structure of the present utility model;

[0024] Figure 4 Schematic diagram of the internal structure of the motor of the present utility model.

[0025] Legend:

[0026] 1. Dispensing machine body; 2. Protective shell; 3. Motor structure; 301. Linear motor body; 302. Rubber seat; 303. Encoder; 304. Air-cooling machine; 305. Microprocessor; 306. Magnet; 4. Fixed seat; 5. Slide rail; 6. Working frame; 7. Connecting shaft; 8. Shaft seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Embodiment

[0029] Refer to Figures 1-4, An embodiment provided by the present utility model: A linear motor dedicated for a dispensing machine, comprising a dispensing machine body 1. The dispensing machine body 1 is the main structure of the dispensing machine, carrying all functional components and providing a stable working platform for the dispensing operation. Above the dispensing machine body 1, a motor structure 3 is fixedly arranged. The motor structure 3 is the core driving part of the dispensing machine, responsible for providing precise linear motion to achieve high-precision dispensing operation. The motor structure 3 includes a linear motor body 301. The linear motor body 301 directly converts electrical energy into linear motion without an intermediate conversion link, thus achieving motion control with high precision and high response speed. Around the outer surface of the linear motor body 301, a protective shell 2 is fixedly arranged. The protective shell 2 protects the linear motor body 301 from the influence of the external environment and provides structural support to ensure the stable operation of the motor. Around the lower end face of the linear motor body 301, a rubber seat 302 is snap-connected. The rubber seat 302 plays a role in shock absorption and sound insulation, reducing the vibration and noise during the operation of the linear motor body 301 and improving the operation stability of the equipment. At the center position of the lower end face of the linear motor body 301, a connecting shaft 7 is fixedly arranged. The connecting shaft 7 is a key component for the power output of the linear motor body 301. Through the sliding connection with the working frame 6, the transmission of linear motion is realized. Above the outer surface of the connecting shaft 7, a fixing seat 4 is fixedly arranged. The fixing seat 4 provides additional support for the connecting shaft 7, enhancing its structural stability and at the same time providing a connection point for the slide rail 5. One side of the fixing seat 4 is slidably connected with a slide rail 5. The slide rail 5 guides and restricts the movement path of the working frame 6, ensuring the precise movement of the dispensing head on the predetermined trajectory. Below the outer surface of the connecting shaft 7, a shaft seat 8 is fixedly arranged. The shaft seat 8 provides guidance and support for the sliding of the working frame 6, ensuring the stability and precision of the dispensing head in the vertical direction. The working frame 6 is slidably connected to the center position of the outer surface of the connecting shaft 7. The working frame 6 carries execution elements such as a dispensing head. Driven by the linear motor body 301 and guided by the slide rail 5 and the shaft seat 8, high-precision linear motion is achieved to complete the dispensing operation.

[0030] On one side of the inner wall of the linear motor body 301, near the front position, an encoder 303 is fixedly installed. The encoder 303 monitors the motion position and speed of the motor in real time, provides accurate feedback signals, and ensures that the linear motor body 301 can achieve high-precision linear motion control. The encoder 303 is a high-resolution absolute encoder 303. Compared with the incremental encoder 303, the absolute encoder 303 can directly provide the absolute value information of the current position without a reference point or initialization, thus improving the stability and reliability of the system. On one side of the inner wall of the linear motor body 301, near the rear position, a microprocessor 305 is fixedly installed. The microprocessor 305 is the core of the control system of the linear motor body 301, responsible for receiving the feedback signals of the encoder 303, executing control algorithms, and outputting drive signals to the linear motor body 301 to achieve precise control of the motion of the linear motor body 301. The microprocessor 305 is equipped with an intelligent control unit. The integration of the intelligent control unit enables the linear motor body 301 to automatically adjust speed, acceleration, and position according to the requirements of the dispensing operation, and achieve high-precision execution of complex paths. On the other side of the inner wall of the linear motor body 301, a magnet 306 is fixedly installed. The magnet 306, together with the stator and the mover, constitutes the electromagnetic drive system of the linear motor body 301. There are magnetic circuits of the stator and the mover on both sides of the magnet 306. The magnetic field generated by the magnet 306 interacts with the current in the stator or the mover to generate electromagnetic force, directly pushing the mover or the stator to move in a straight line direction. On the upper position of the inner wall of the linear motor body 301, an air cooler 304 is fixedly installed. The air cooler 304 uses air cooling technology to dissipate heat from the linear motor body 301. The air cooler 304 quickly removes the heat generated during the operation of the motor by forcing air flow, keeping the motor within a suitable working temperature range and avoiding performance degradation and shortened lifespan caused by overheating. The efficient operation of the air cooling system plays an important role in ensuring the stable operation and extending the service life of the linear motor body 301. The linear motor body 301 uses a brushless DC motor. The adoption of the brushless DC motor eliminates the brushes and commutators in traditional motors, improving the efficiency, lifespan, and reliability of the motor.

[0031] Working principle: The microprocessor 305 identifies the instruction to start the linear motor body 301. The linear motor body 301 drives the connecting shaft 7 to rotate. The working frame 6 on the outer surface of the connecting shaft 7 moves through the slide rail 5. The encoder 303 identifies the working position of the working frame 6 and transmits it to the microprocessor 305 for mechanical energy feedback. The air cooler 304 cools the linear motor body 301 by air cooling. The rubber seat 302 buffers the vibration generated by the linear motor body 301 and weakens the noise.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A linear motor for a glue dispensing machine, comprising a glue dispensing machine body (1), characterized in that: A motor structure (3) is fixedly arranged at an upper position of the dispensing machine body (1), and the motor structure (3) comprises a linear motor body (301); a protective shell (2) is fixedly arranged around the outer surface of the linear motor body (301); a rubber seat (302) is clamped around the lower end surface of the linear motor body (301); a connecting shaft (7) is fixedly arranged at the center position of the lower end surface of the linear motor body (301); a fixed seat (4) is fixedly arranged at an upper position on the outer surface of the connecting shaft (7); a slide rail (5) is slidably connected to one side of the fixed seat (4); a shaft seat (8) is fixedly arranged at a lower position on the outer surface of the connecting shaft (7); and a working frame (6) is slidably connected to the center position of the outer surface of the connecting shaft (7).

2. According to claim 1, a linear motor for a dispensing machine is characterized in that: An encoder (303) is fixedly arranged at a front position on one side of the inner wall of the linear motor body (301), and the encoder (303) is a high-resolution absolute value encoder (303).

3. The linear motor for glue dispensing machine according to claim 1, characterized in that: A microprocessor (305) is fixedly arranged at a rear position on one side of the inner wall of the linear motor body (301), and the microprocessor (305) is equipped with an intelligent control unit.

4. The linear motor for glue dispensing machine according to claim 1 is characterized in that: A magnet (306) is fixedly arranged at the other side of the inner wall of the linear motor body (301), and magnetic circuits of the stator and the mover are arranged on both sides of the magnet (306).

5. The linear motor for glue dispensing machine according to claim 1 is characterized in that: An air cooler (304) is fixedly arranged above the inner wall of the linear motor body (301), and the air cooler (304) uses air cooling technology to dissipate heat from the linear motor body (301).

6. The linear motor for glue dispensing machine according to claim 1, characterized in that: The linear motor body (301) is a brushless DC motor.

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