Gluing device for preventing glue hardening

Abstract

The utility model relates to gluing equipment technical field, specifically disclose a kind of gluing equipment for preventing glue hardening of glue nozzle, comprising: mechanical arm and glue nozzle, glue nozzle top is fixedly connected with glue storage tank, glue storage tank is communicated with glue nozzle, and the outside of glue storage tank is communicated with connector, and the outside of connector is communicated with rubber tube, and the inside wall of glue storage tank is slidably connected with piston plate, and the upper portion of piston plate is equipped with the adjusting part that drives piston plate to move, and the outside of connector is equipped with sealing element that is sealed to connector cavity;Glue nozzle glue injection is completed, and adjusting part drives piston plate to slide upwards in the inside wall of glue storage tank, and sealing element is sealed to connector when piston plate moves upwards. Through the collaborative design of adjusting part and glue nozzle, after gluing, the glue is quickly sucked back, to prevent the blockage caused by the hardening of the exposed glue, to ensure the smoothness of the glue, the modular connection design of the fixing part enhances the versatility and maintenance convenience of the equipment, reduces the downtime maintenance time and cost.

Description

Technical Field

[0001] This utility model relates to the field of adhesive coating equipment technology, specifically to an adhesive coating device that prevents the adhesive from hardening at the applicator nozzle. Background Technology

[0002] Adhesive coating equipment is widely used in industries such as electronics, automotive, home appliances, and medical devices, primarily for bonding, sealing, insulating, and protecting materials. Most existing adhesive coating equipment employs pneumatic drive, using robotic arms or automated systems to expel adhesive from a storage device and deliver it via a hose to the coating nozzle for precise application. This type of equipment can adapt to complex working conditions, such as automotive body sealing, electronic chip packaging, and medical device bonding, significantly improving production efficiency and coating accuracy.

[0003] Traditional glue application equipment suffers from nozzle clogging in practical applications. As the glue remains inside or at the outlet of the nozzle for a long time during the working interval, it is prone to hardening and solidification due to contact with air, temperature fluctuations, or chemical reactions, resulting in poor glue dispensing or even complete blockage, affecting the continuity of glue application and product quality. To address this, we propose a glue application equipment that prevents the glue in the nozzle from hardening. Utility Model Content

[0004] The purpose of this invention is to provide a glue application device that prevents the glue from hardening in the glue nozzle, thereby solving the problem in the above-mentioned background technology where the glue remains inside the glue nozzle or at the outlet for a long time during the operation interval, and is prone to hardening and solidification due to contact with air, temperature fluctuations or chemical reactions, resulting in poor glue dispensing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a glue-applying device for preventing glue from hardening on a glue applicator, comprising: a robotic arm, a fixing component at the end of the robotic arm, an adjusting component fixedly connected to the lower end of the fixing component, and a sealing component fixedly connected to the adjusting component. The robotic arm is a multi-degree-of-freedom industrial robotic arm, which can adapt to various workpiece surface glue-applying requirements. The fixing component and the robotic arm are modularly installed through a quick-locking device, which facilitates equipment maintenance and replacement.

[0006] The fixing components include a connecting plate fixedly connected to the end of the robotic arm, a fixing screw fastened to the connecting plate, a fixing bracket fastened to the fixing screw, a screw hole at the rear of the fixing bracket, and an adjusting component fixedly connected to the fixing bracket. Furthermore, the surface of the connecting plate is treated with a protective coating to enhance wear resistance and ensure axial positioning accuracy during installation. The fixing bracket is a steel frame structure with internal reinforcement to improve bending resistance. The screw hole positions are optimized according to the center of gravity distribution of the adjusting component to reduce the overall vibration amplitude.

[0007] The adjusting component includes a pneumatic push rod fixedly connected to the fixed frame. The middle section of the pneumatic push rod is equipped with an air inlet valve and an air outlet valve to control the input and release of air pressure. A piston plate is fixedly connected to the lower end of the pneumatic push rod. The reciprocating motion of the piston plate is driven by the pneumatic push rod to realize the adjustment function of the target component.

[0008] The sealing components include a glue storage tank fixedly connected to a pneumatic push rod, a connector fixedly connected to the surface of the glue storage tank, a glue hose connected to the connector, a fixed base fixedly connected to the bottom of the glue storage tank, a glue applicator movably connected to the fixed base, and a sealing ring fixedly connected to the top of the glue applicator. The glue storage tank adopts a vacuum insulation structure, the inner liner is made of corrosion-resistant metal, and the glue hose is a flexible corrugated tube with excellent anti-aging properties and bending characteristics. When the glue applicator stops, the pneumatic push rod reverses the suction, and the piston plate moves up to recover the residual glue into the glue storage tank, preventing the glue from oxidizing and hardening upon contact with air. The glue storage tank has a sliding groove, a push rod is slidably connected to the sliding groove, an interface baffle is fixedly connected below the push rod, a wedge-shaped trigger block is fixedly connected to the top of the push rod, and a reset spring is fixedly connected to the rear of the push rod.

[0009] The top of the rubber storage tank is equipped with a connecting collar.

[0010] The section of the wedge-shaped trigger block near the piston plate has a rounded transition.

[0011] This utility model has at least the following beneficial effects: In use, this utility model achieves rapid back-suction of the adhesive after application through the coordinated design of the adjusting component and the dispensing nozzle, effectively preventing blockage caused by the hardening of the adhesive and further ensuring smooth dispensing. The modular connection design of the fixing component enhances the equipment's versatility and ease of maintenance, reducing downtime and maintenance time and costs. The overall structure is adaptable to complex curved surfaces and high-precision industrial scenarios, extending the equipment's service life and improving automated production efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the fastener of this utility model; Figure 3 This is a schematic diagram of the adjusting component of this utility model; Figure 4 This is a schematic diagram of the sealing element of this utility model; Figure 5 This is a schematic diagram of area A of the sealing element of this utility model; Figure 6 This is a front view of the sealing interface baffle of this utility model.

[0013] In the diagram: 1. Robotic arm; 2. Fixing component; 21. Fixing frame; 22. Connecting plate; 23. Fixing screw; 24. Screw hole; 3. Adjusting component; 31. Pneumatic push rod; 32. Inlet valve; 33. Outlet valve; 34. Piston plate; 4. Sealing component; 41. Glue storage tank; 42. Connector; 43. Glue hose; 44. Glue applicator; 45. Fixing base; 46. Sealing ring; 47. Interface baffle; 48. Wedge trigger block; 49. Push rod; 410. Reset spring; 411. Sliding groove; 5. Connecting collar; 6. Arc transition. Detailed Implementation

[0014] 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.

[0015] Example 1 Please see Figures 1 to 6 This utility model provides a technical solution: a glue application device for preventing glue from hardening at the applicator nozzle, including a robotic arm 1, a fixing member 2 at the end of the robotic arm 1, an adjusting member 3 fixedly connected to the lower end of the fixing member 2, and a sealing member 4 fixedly connected to the adjusting member 3. After the device is started, the glue is first injected into the glue storage tank 41. The robotic arm 1 moves to the glue application position according to the preset trajectory. Then, the air inlet valve 32 draws in air, the compressed gas pushes the pneumatic push rod 31, the pneumatic push rod 31 presses the piston plate 34 to move down, and the glue flows from the glue storage tank 41 to the glue application nozzle 44 and is evenly applied under pressure.

[0016] The fixing component 2 includes a connecting plate 22 fixedly connected to the end of the robotic arm 1. The connecting plate 22 is threaded with a fixing screw 23, and the fixing screw 23 is threaded with a fixing bracket 21. The fixing bracket 21 has a screw hole 24 at the rear. The fixing bracket 21 is fixedly connected to the adjusting component 3. The connecting plate 22 is used to enhance the connection stability between the robotic arm 1 and the adjusting component 3. At the same time, the fixing component 2 and the robotic arm 1 can be detachably connected through the cooperation of the fixing screw 23 and the screw hole 24, which is convenient for maintenance and replacement, and also ensures the structural stability of the equipment during operation.

[0017] The adjusting component 3 includes a pneumatic push rod 31 fixedly connected to the fixed frame 21. The middle section of the pneumatic push rod 31 is provided with an air inlet valve 32 and an air outlet valve 33. The lower end of the pneumatic push rod 31 is connected to a piston plate 34. After a single application of adhesive is completed, the air pressure is adjusted by the air outlet valve 33. The pneumatic push rod 31 drives the piston plate 34 to move upward, so that the adhesive is drawn back into the adhesive nozzle 44, thus preventing the adhesive from being exposed to the air for a long time to cure and block.

[0018] The sealing element 4 includes a glue storage tank 41 fixedly connected to the pneumatic push rod 31. A connector 42 is fixedly connected to the surface of the glue storage tank 41, and a glue tube 43 is connected to the connector 42. A fixed base 45 is fixedly connected to the bottom of the glue storage tank 41, and a glue applicator 44 is movably connected to the fixed base 45. A sealing ring 46 is fixedly connected to the top of the glue applicator 44. When the piston plate 34 moves upward, the sealing element 4 seals the connector 42, generating a negative pressure inside the glue storage tank 41. The glue applicator 44 then generates a suction action. After the glue application is completed, the glue applicator 44 can control the piston plate 34 via the pneumatic push rod 31 to achieve glue back suction, preventing the glue from remaining in the glue applicator for a long time. 44 External hardening and blockage occurs. The sealing ring 46 ensures the sealing of the connection between the dispensing nozzle 44 and the fixed seat 45 to prevent glue leakage. The glue storage tank has a sliding groove 411. The sliding groove 411 is slidably connected to the push rod 49. The interface baffle 47 is fixedly connected below the push rod 49. The top of the push rod 49 is fixedly connected to the wedge-shaped trigger block 48. The rear of the push rod is fixedly connected to the reset spring 410. When the piston plate 34 moves upward, the wedge-shaped trigger block 48 is pressed, causing the push rod 49 to move along the sliding groove 411. The interface baffle 47 blocks the interface from continuing to dispense glue. With the help of the adjusting piece 3, the glue inside the dispensing nozzle is drawn back.

[0019] Example 2 In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that the top of the glue storage tank 41 is provided with a connecting collar 5, which is used to enhance the connection stability between the glue storage tank 41 and the pneumatic push rod assembly and ensure the connection sealing. The section of the wedge-shaped trigger block 48 near the piston plate 34 is provided with an arc transition 6, so that the piston plate 34 can smoothly contact and squeeze the wedge-shaped trigger block 48.

[0020] The width of the interface baffle 47 is adapted to the inner diameter of the connector 42 to form a tight fit during sealing; the sealing ring 46 is made of silicone rubber; the tilt angle of the wedge trigger block 48 is consistent with the movement direction of the piston plate 34; the diameter of the push rod 49 matches the width of the sliding groove 411, allowing linear sliding without jamming.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] 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 glue application device for preventing glue from hardening on a glue applicator nozzle, comprising: A robotic arm and a glue applicator, characterized in that: a glue storage tank is fixedly connected to the top of the glue applicator, the glue storage tank is connected to the glue applicator, a connector is connected to the outside of the glue storage tank, a glue tube is connected to the outside of the connector, a piston plate is slidably connected to the inner wall of the glue storage tank, an adjusting component is provided above the piston plate to drive the piston plate to move, and a sealing component is provided on the outside of the connector to seal the connector cavity; After the glue is dispensed by the glue applicator, the adjusting component drives the piston plate to slide upward on the inner wall of the glue storage tank. When the piston plate moves upward, the sealing component seals the connector, creating a negative pressure inside the glue storage tank, and the glue applicator generates a suction action.

2. The adhesive application equipment for preventing adhesive hardening at the applicator nozzle according to claim 1, characterized in that: The robotic arm is fixedly connected to a connecting plate at its end. The connecting plate is threaded with a fixing screw, and the fixing screw is threaded with a fixing bracket. The fixing bracket has a screw hole at its rear and is connected to an adjusting component.

3. The adhesive application equipment for preventing adhesive hardening at the applicator nozzle according to claim 1, characterized in that: The adjusting component includes a pneumatic push rod fixedly connected to the fixed frame. The middle section of the pneumatic push rod is provided with an air inlet valve and an air outlet valve, and the lower end of the pneumatic push rod is fixedly connected to a piston plate.

4. The adhesive application equipment for preventing adhesive hardening at the applicator nozzle according to claim 1, characterized in that: The sealing element includes a glue storage tank fixedly connected to a pneumatic push rod. A connector is fixedly connected to the surface of the glue storage tank, and a glue tube is connected to the connector. A fixed base is fixedly connected to the bottom of the glue storage tank, and a glue applicator is movably connected to the fixed base. A sealing ring is fixedly connected to the top of the glue applicator. A sliding groove is opened inside the glue storage tank, and a push rod is slidably connected to the sliding groove. An interface baffle is fixedly connected below the push rod, a wedge-shaped trigger block is fixedly connected to the top of the push rod, and a reset spring is fixedly connected to the rear of the push rod.

5. The adhesive application equipment for preventing adhesive hardening at the applicator nozzle according to claim 4, characterized in that: The top of the glue storage tank is equipped with a connecting collar.

6. The adhesive application equipment for preventing adhesive hardening at the applicator nozzle according to claim 4, characterized in that: The section of the wedge-shaped trigger block near the piston plate has a rounded transition.

7. The adhesive coating equipment according to claim 4, characterized in that: The width of the interface baffle is adapted to the inner diameter of the connector, forming a tight fit during sealing.

8. The adhesive coating equipment according to claim 4, characterized in that: The sealing ring is made of silicone rubber.

9. The adhesive coating equipment according to claim 4, characterized in that: The tilt angle of the wedge-shaped trigger block is consistent with the movement direction of the piston plate.

10. The adhesive coating equipment according to claim 4, characterized in that: The diameter of the push rod matches the width of the sliding groove, allowing for linear sliding without jamming.

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