Automatic glue spraying device

Abstract

The utility model discloses an automatic glue spraying device which comprises a support, a nozzle is arranged on the support, the nozzle comprises a spraying opening and a spraying inlet, an electromagnetic valve used for controlling whether glue flows or not is arranged at the front end of the spraying inlet of the nozzle, the electromagnetic valve comprises a valve inlet and a valve outlet, the valve outlet is connected with the spraying inlet, and the nozzle is connected with the electromagnetic valve. The valve inlet is connected with a first guide pipe, the first guide pipe is connected with a hydraulic tank used for pressurizing glue flowing into the electromagnetic valve, and the hydraulic tank is provided with a second guide pipe allowing the glue to enter. According to the utility model, glue is automatically sprayed under the control of the electromagnetic valve, the spraying precision is high, the consistency is excellent, the time response speed is high, the spraying frequency is high, the applicable glue type is not limited, the spraying device is suitable for various application scenes, the spraying effect is good, and the glue-sprayed object is uniformly and firmly adhered.

Description

Technical Field

[0001] This utility model relates to an adhesive spraying device, and in particular to an automatic adhesive spraying device suitable for equipment such as rope making machines, button making machines, shoelace machines, and automatic rope threading machines. Background Technology

[0002] Existing glue spraying devices use a spring-loaded method to spray glue, which can achieve glue spraying to a certain extent, but it does have some limitations.

[0003] 1. Limited Spraying Accuracy and Consistency: Unstable Pressure Source: Spring-loaded adhesive spraying typically relies on the spring force to provide spraying pressure. However, the spring force can be affected by various factors, such as the spring material, manufacturing process, and lifespan, leading to instability in the pressure source. This instability can result in uneven adhesive spraying, affecting spraying accuracy and consistency.

[0004] 2. Slow response time: The spring-loaded glue spraying method requires a certain amount of time to compress the spring and accumulate sufficient pressure to spray the glue. This can result in a slow response time when rapid glue spraying is needed, failing to meet the requirements of high-precision spraying.

[0005] 3. Limited Spraying Frequency: The spring-loaded adhesive spraying method is limited by the spring's return speed, which may result in a lower spraying frequency. In applications requiring high-frequency adhesive spraying, this method may not meet the requirements.

[0006] 4. Adhesive Type Limitations: Spring-loaded adhesive sprayers may not be suitable for all types of adhesives. For example, some high-viscosity or low-flow adhesives may not be able to be smoothly sprayed out by the spring-loaded sprayer.

[0007] 5. Application scenario limitations: Due to the limitations in spraying accuracy, efficiency and frequency mentioned above, the spring-loaded glue spraying device may not be suitable for application scenarios that require high precision, high efficiency and high frequency glue spraying. Utility Model Content

[0008] In view of the shortcomings of existing technology, the purpose of this utility model is to provide an automatic glue spraying device.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automatic glue spraying device, including a bracket, a nozzle on the bracket, the nozzle including an outlet and an inlet, a solenoid valve for controlling whether glue flows at the front end of the inlet of the nozzle, the solenoid valve including an inlet and an outlet, the outlet being connected to the inlet, the inlet being connected to a first conduit, the first conduit being connected to a hydraulic tank for pressurizing the glue flowing into the solenoid valve, and the hydraulic tank having a second conduit for the glue to enter.

[0010] Preferably, the solenoid valve includes an iron core and a housing. One end of the iron core is fixedly connected to the valve inlet to form an inlet tube, and the other end is provided with an armature. A coil frame is sleeved on the outer wall of the iron core. The inner wall of the coil frame is fitted with the outer wall of the iron core. The coil frame extends towards the outer wall of the iron core to form an insertion port for inserting the armature. A coil is wound on the coil frame. The inner wall of the housing is fitted with the outer wall of the coil frame, thereby abutting the coil frame between the housing and the outer wall of the iron core. The housing also includes an extension. The inner wall of the extension is flush with the inner wall of the insertion port. The extension and the insertion port form a sliding cavity for sliding the armature. A valve seat is fixedly provided at the opening of the sliding cavity. A valve outlet is provided on the valve seat. A ball is also provided on the valve seat for closing the valve outlet. The armature is fixedly connected to the ball. A spring for resetting the armature and closing the valve outlet is abutted between the armature and the valve inlet.

[0011] Preferably, the nozzle has a nozzle plate at the nozzle outlet, and the nozzle plate has a plurality of tiny nozzle holes.

[0012] Preferably, the solenoid valve has a sealing rubber ring at one end near the valve inlet, and the sealing rubber ring is located between the outer wall of the solenoid valve and the first guide tube.

[0013] The beneficial effects of this utility model are as follows: This utility model adopts automatic glue spraying under the control of electromagnetic valve, which has high spraying accuracy, excellent consistency, fast time response speed, high spraying frequency, no restriction on the type of glue applicable, applicable to a variety of application scenarios, and good spraying effect, so that the glued objects are evenly and firmly bonded. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is one of the structural schematic diagrams of a solenoid valve and a nozzle;

[0016] Figure 3 This is the second schematic diagram of the structure of the solenoid valve and nozzle;

[0017] Figure 4 This is a cross-sectional view of the solenoid valve. Detailed Implementation

[0018] like Figures 1-4 As shown, an automatic glue spraying device includes a bracket 1, on which a nozzle 2 is provided. The nozzle 2 includes an outlet and an inlet. The front end of the inlet of the nozzle 2 is provided with a solenoid valve 3 for controlling whether the glue flows. The solenoid valve 3 includes an inlet valve 4 and an outlet valve 5. The outlet valve 5 is connected to the inlet valve. The inlet valve 4 is connected to a first conduit 6. The first conduit 6 is connected to a hydraulic tank 7 for pressurizing the glue flowing into the solenoid valve 3. The hydraulic tank 7 is provided with a second conduit 8 for the glue to enter.

[0019] The solenoid valve 3 includes an iron core 9 and a housing 10. One end of the iron core 9 is fixedly connected to the valve inlet 4 to form an adhesive inlet tube 11, and the other end is provided with an armature 12. A coil frame 13 is sleeved on the outer wall of the iron core 9, and the inner wall of the coil frame 13 is in contact with the outer wall of the iron core 9. The coil frame 13 extends towards the outer wall of the iron core 9 to form an insertion port 14 for the armature 12 to be inserted. A coil 15 is wound on the coil frame 13. When the coil 15 is energized, it can generate heat, which heats the adhesive passing through the iron core 9, making the adhesive stronger and the material more firmly bonded. The inner wall of the housing 10 is in contact with the outer wall of the coil frame 13 to hold the wire... The ring frame 13 abuts against the outer wall of the housing 10 and the iron core 9. The housing 10 also includes an extension 16. The inner wall of the extension 16 is flush with the inner wall of the insertion port 14. The extension 16 and the insertion port 14 combine to form a sliding cavity 17 for the armature 12 to slide. A valve seat 18 is fixedly provided at the opening of the sliding cavity 17. A valve outlet 5 is provided on the valve seat 18. A ball 19 for closing the valve outlet 5 is also provided on the valve seat 18. The armature 12 is fixedly connected to the ball 19. A spring 20 for resetting the armature 12 and closing the ball 19 is abutting between the armature 12 and the inlet port 4.

[0020] The nozzle 2 has a nozzle plate 21 at the nozzle outlet, and the nozzle plate 21 has a plurality of tiny nozzle holes 22. The glue is sprayed out through the nozzle holes 22, resulting in a good spraying effect and more uniform coverage.

[0021] The solenoid valve 3 is provided with a sealing rubber ring 23 at one end near the valve inlet 4. The sealing rubber ring 23 is located between the outer wall of the solenoid valve 3 and the first conduit 6.

[0022] Working principle: The glue enters the hydraulic tank 7 through the second conduit 8, and then flows into the solenoid valve 3 through the first conduit 6. The solenoid valve 3 controls whether the glue continues to flow. When the solenoid valve 3 is energized, the coil 15 is energized. At this time, the iron core 9 is magnetized and generates magnetic force, which attracts the armature 12 to slide upward along the sliding cavity 17. The spring 20, which abuts against the armature 12, is subjected to pressure and undergoes elastic deformation. The ball 19, which is fixedly connected to the armature 12, leaves the outlet 5 on the valve seat 18, and the glue flows out from the outlet 5, enters the nozzle 2 through the inlet, and finally sprays out from the outlet. When the solenoid valve 3 is de-energized, the coil 15 is de-energized. At this time, the iron core 9 loses its magnetic force, and the spring 20, which abuts against the armature 12, applies a downward elastic force to the armature 12. The armature 12 slides downward along the sliding cavity 17, and the ball 19, which is fixedly connected to the armature 12, closes the outlet 5 on the valve seat 18, and the glue cannot flow out from the outlet 5.

[0023] This utility model uses an electromagnetic valve 3 to control automatic glue spraying, which has high spraying accuracy, excellent consistency, fast time response, high spraying frequency, no restrictions on the type of glue it can be used with, is suitable for a variety of application scenarios, and has a good spraying effect, making the sprayed objects bonded evenly and firmly.

[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. Simple modifications and substitutions made by those skilled in the art without departing from the spirit and scope of this utility model are within its protection scope.

Claims

1. An automatic glue spraying device, characterized in that, The application relates to a glue spraying device, which comprises a support, a nozzle arranged on the support, an electromagnetic valve arranged at the front end of the inlet of the nozzle, a first conduit connected with the electromagnetic valve, a hydraulic tank connected with the first conduit, and a second conduit arranged on the hydraulic tank.

2. The automatic glue spraying device according to claim 1, wherein The electromagnetic valve comprises a core and a shell, one end of the core is fixedly connected with the inlet of the valve, the other end of the core is provided with an armature, a coil holder is arranged on the outer wall of the core, the inner wall of the coil holder is attached to the outer wall of the core, the coil holder extends to the outer wall of the core to form an insertion opening for the armature, a coil is arranged on the coil holder, the inner wall of the shell is attached to the outer wall of the coil holder so that the coil holder is abutted between the shell and the outer wall of the core, the shell further comprises an extension part, the inner wall of the extension part is flushly arranged with the inner wall of the insertion opening, the extension part and the insertion opening form a sliding cavity for the armature, a valve seat is fixedly arranged at the opening of the sliding cavity, the valve seat is provided with the outlet of the valve, the valve seat is further provided with a ball for closing the outlet of the valve, the armature is fixedly connected with the ball, a spring is arranged between the armature and the inlet of the valve for resetting the armature to close the outlet of the valve by the ball.

3. The automatic glue spraying device according to claim 1, wherein The nozzle is provided with a nozzle plate at the outlet of the nozzle, and the nozzle plate is provided with a plurality of fine nozzle holes.

4. The automatic glue spraying device according to claim 1, wherein The electromagnetic valve is provided with a sealing rubber ring at one end close to the inlet of the valve, and the sealing rubber ring is arranged between the outer wall of the electromagnetic valve and the first conduit.

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