Sealant gun capable of accurately discharging sealant

Abstract

The utility model discloses a sealant gun capable of accurately discharging sealant. The sealant gun comprises a sealant gun body, a propelling device, a displacement detection device and a handle, the glue gun body comprises a glue barrel, a glue outlet pipe and an end cover, one end of the glue barrel is connected with the glue outlet pipe, an opening is formed in the other end of the glue barrel and used for containing sealant, and the end cover is installed on one side of the opening; the propelling device is mounted on the end cover and is used for extruding the sealant in the sealant barrel towards the sealant outlet pipe; the displacement detection device is arranged on one side of the glue outlet pipe and is used for detecting the moving distance of the glue gun; the handle is connected to one side of the glue gun body, an operation panel is arranged on the handle, a control button is arranged on the surface of the operation panel, a controller is arranged in the operation panel, and the controller is electrically connected with the propelling device, the displacement detection device and the operation panel. The sealant gun capable of accurately discharging the sealant can realize accurate sealant discharging.

Description

Technical Field

[0001] This utility model relates to the field of sealant gun technology, and in particular to a sealant gun with precise glue dispensing capability. Background Technology

[0002] In many fields such as construction, decoration and industrial manufacturing, sealant guns are widely used as a key tool for extruding sealant in various sealing, bonding and filling operations.

[0003] Currently, most sealant guns on the market dispense sealant by manually driving a push rod to squeeze the glue cartridge. However, these traditional sealant guns have revealed several significant shortcomings in actual use. First, regarding the accuracy of glue dispensing, manually operated guns heavily rely on the operator's experience and hand strength. Due to significant differences in the stability and proficiency of different operators, it is difficult to precisely control the flow rate and thickness of the glue line each time. In delicate operations requiring extremely high sealant dosage and coating precision, such as waterproof sealing of electronic equipment and assembly and bonding of precision instruments, it is easy to dispense too much sealant, resulting in waste, or too little, leading to poor sealing. While pneumatic sealant guns offer relatively stable power output, even slight fluctuations in air pressure and the response delay of the air circuit system can affect the accuracy of glue dispensing, making it difficult to meet the demands of high-precision operations.

[0004] In addition, after the glue gun is used up, the residual pressure in the glue cylinder causes the sealant to continue to leak, which not only wastes materials and makes the working environment dirty, but also causes the glue residue to corrode the internal parts of the gun in the long run, which greatly shortens the service life of the glue gun and increases maintenance costs.

[0005] To address this, a precise glue dispensing sealant gun is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a sealant gun with precise glue dispensing capability, in order to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] A precision glue gun includes a glue gun body, a propulsion device, a displacement detection device, and a handle;

[0009] The glue gun body includes a glue cylinder, a glue dispensing tube, and an end cap. One end of the glue cylinder is connected to the glue dispensing tube, and the other end of the glue cylinder has an opening for putting in sealant. The end cap is installed on one side of the opening.

[0010] The propulsion device is installed on the end cap and is used to squeeze the sealant in the glue tube toward the glue outlet tube.

[0011] The displacement detection device is located on one side of the glue outlet tube, and the displacement detection device is used to detect the moving distance of the glue gun;

[0012] The handle is connected to one side of the glue gun body. An operation panel is provided on the handle. The surface of the operation panel is provided with control buttons. A controller is provided inside the operation panel. The controller is electrically connected to the propulsion device, the displacement detection device and the operation panel respectively.

[0013] Furthermore, an electrically controlled valve is provided at the connection point between the dispensing tube and the glue cartridge, and the electrically controlled valve is electrically connected to the controller. The electrically controlled valve is closed after use to prevent glue leakage.

[0014] Furthermore, the propulsion device includes a motor, a drive sleeve, a screw, and a push plate. The drive sleeve is rotatably mounted on the end cover and has a threaded hole. The screw engages with the threaded hole, and one end of the screw is connected to the push plate. The end cover has a through hole for the screw to pass through. The push plate extends into the rubber tube. A limiting strip is provided on the inner side of the rubber tube, and a limiting groove is provided on the edge of the push plate. The limiting groove engages with the limiting strip to restrict the rotation of the screw. The push plate moves along the limiting strip inside the rubber tube. A gear ring is provided on the outer side of the drive sleeve. The motor is fixed to one side of the end cover, and a gear is mounted on the motor shaft. The gear meshes with the gear ring. The motor drives the drive sleeve to rotate through the meshing of the gear and the gear ring. The rotation of the drive sleeve drives the screw to move along the limiting strip inside the rubber tube.

[0015] Furthermore, the displacement detection device includes a roller and a bracket. The bracket is installed on one side of the dispensing tube, and the roller is mounted on the bracket. The roller is equipped with an encoder, which is electrically connected to the controller. The roller makes rolling contact with the working surface at the outlet of the dispensing tube. When moving, the roller can be rotated. The encoder can provide feedback on the moving speed, and the motor speed can be adjusted according to the moving speed to change the dispensing rate.

[0016] Furthermore, the bracket includes a rotating base, a fixing screw, and a crank handle. The rotating base is disposed on one side of the dispensing tube, the crank handle is rotatably connected to the rotating base, the fixing screw is used to fix the angle between the crank handle and the rotating base, and the roller is installed at the end of the crank handle. The angle of the roller can be adjusted as needed.

[0017] Furthermore, the bracket also includes an adjusting sleeve, which is rotatably mounted on the dispensing tube. The rotating seat is fixed to one side of the adjusting sleeve, and the orientation of the roller can be adjusted when the adjusting sleeve is rotated.

[0018] This utility model has at least the following beneficial effects: it is equipped with a displacement detection device, which adjusts the dispensing rate in real time according to the speed of the glue gun movement to achieve precise dispensing control; it is equipped with an electrically controlled valve, which is closed after use to prevent glue leakage; it adopts a motor-driven electric dispensing method to reduce labor intensity, improve dispensing efficiency, and ensure a stable dispensing rate; the bracket design allows for flexible adjustment of the roller angle and orientation to adapt to different working conditions and work surfaces, thereby improving the equipment's versatility. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a sealant gun for precise glue dispensing according to the present invention.

[0020] In the diagram: 1-Glue gun body, 11-Glue cartridge, 111-Limiting strip, 12-Dispensing tube, 13-End cap, 2-Propulsion device, 21-Motor, 211-Gear, 22-Drive sleeve, 221-Gear ring, 23-Screw, 24-Push plate, 3-Displacement detection device, 31-Roller, 32-Bracket, 321-Rotating seat, 322-Fixing screw, 323-Handle, 324-Adjusting sleeve, 4-Handle, 5-Operation panel, 51-Control button. Detailed Implementation

[0021] 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.

[0022] like Figure 1 As shown, an embodiment of this utility model provides a sealing glue gun for precise glue dispensing, including a glue gun body 1, a propulsion device 2, a displacement detection device 3, and a handle 4;

[0023] The glue gun body 1 includes a glue cylinder 11, a glue dispensing tube 12 and an end cap 13. One end of the glue cylinder 11 is connected to the glue dispensing tube 12, and the other end of the glue cylinder 11 has an opening for putting in sealant. The end cap 13 is installed on one side of the opening.

[0024] The pushing device 2 is installed on the end cap 13, and the pushing device 2 is used to squeeze the sealant in the glue cylinder 11 toward the glue outlet tube 12;

[0025] The displacement detection device 3 is located on one side of the glue outlet tube 12, and the displacement detection device 3 is used to detect the moving distance of the glue gun.

[0026] The handle 4 is connected to one side of the glue gun body 1. An operation panel 5 is provided on the handle 4. The surface of the operation panel 5 is provided with control buttons 51. A controller is provided inside the operation panel 5. The controller is electrically connected to the propulsion device 2, the displacement detection device 3 and the operation panel 5 respectively.

[0027] Furthermore, an electrically controlled valve is provided at the connection point between the dispensing tube 12 and the glue cylinder 11, and the electrically controlled valve is electrically connected to the controller. The electrically controlled valve is closed after use to prevent glue leakage.

[0028] Further, the propulsion device 2 includes a motor 21, a drive sleeve 22, a screw 23, and a push plate 24. The drive sleeve 22 is rotatably mounted on the end cover 13. The drive sleeve 22 has a threaded hole, and the screw 23 engages with the threaded hole. One end of the screw 23 is connected to the push plate 24. The end cover 13 has a through hole for the screw 23 to pass through. The push plate 24 extends into the rubber cylinder 11. The inner side of the rubber cylinder 11 has a limiting strip 111, and the edge of the push plate 24 has a limiting groove. The limiting groove engages with the limiting strip 111 to restrict the rotation of the screw 23. The push plate 24 moves along the limiting strip 111 inside the rubber cylinder 11. The outer side of the drive sleeve 22 has a gear ring 221. The motor 21 is fixed to one side of the end cover 13. The shaft of the motor 21 is equipped with a gear 211, which meshes with the gear ring 221. The motor 21 drives the drive sleeve 22 to rotate through the meshing of the gear 211 and the gear ring 221. The rotation of the drive sleeve 22 drives the screw 23 to move inside the rubber tube 11 along the limiting strip 111.

[0029] Furthermore, the displacement detection device 3 includes a roller 31 and a bracket 32. The bracket 32 ​​is installed on one side of the dispensing pipe 12, and the roller 31 is installed on the bracket 32. The roller 31 is equipped with an encoder, which is electrically connected to the controller. The roller 31 makes rolling contact with the working surface at the opening of the dispensing pipe 12. When moving, the roller 31 can be rotated. The encoder can provide feedback on the moving speed, and the motor 21 speed is adjusted according to the moving speed to change the dispensing rate.

[0030] Furthermore, the bracket 32 ​​includes a rotating base 321, a fixing screw 322, and a crank handle 323. The rotating base 321 is disposed on one side of the dispensing tube 12, and the crank handle 323 is rotatably connected to the rotating base 321. The fixing screw 322 is used to fix the angle between the crank handle 323 and the rotating base 321. The roller 31 is installed at the end of the crank handle 323. The angle of the roller 31 can be adjusted as needed.

[0031] Furthermore, the bracket 32 ​​also includes an adjusting sleeve 324, which is rotatably mounted on the dispensing tube 12. The rotating seat 321 is fixed to one side of the adjusting sleeve 324, and the orientation of the roller 31 can be adjusted when the adjusting sleeve 324 is rotated.

[0032] The control button 51 includes a valve switch button and a motor switch button. When in use, first open the electrically controlled valve, then start the motor, adjust the roller 31 so that the roller 31 and the nozzle of the glue dispensing tube 12 simultaneously press against the working surface, move the glue gun with the roller 31 as the fulcrum, and adjust the motor speed according to the moving speed feedback from the encoder of the roller 31 to control the glue dispensing rate and achieve stable glue dispensing.

[0033] This utility model has at least the following beneficial effects: it is equipped with a displacement detection device, which adjusts the dispensing rate in real time according to the speed of the glue gun movement to achieve precise dispensing control; it is equipped with an electrically controlled valve, which is closed after use to prevent glue leakage; it adopts a motor-driven electric dispensing method to reduce labor intensity, improve dispensing efficiency, and ensure a stable dispensing rate; the bracket design allows for flexible adjustment of the roller angle and orientation to adapt to different working conditions and work surfaces, thereby improving the equipment's versatility.

[0034] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model 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 this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision dispensing sealant gun, characterized in that, It includes a glue gun body (1), a propulsion device (2), a displacement detection device (3), and a handle (4); The glue gun body (1) includes a glue cylinder (11), a glue dispensing tube (12) and an end cap (13). One end of the glue cylinder (11) is connected to the glue dispensing tube (12), and the other end of the glue cylinder (11) has an opening for putting in sealant. The end cap (13) is installed on one side of the opening. The propulsion device (2) is installed on the end cap (13) and is used to squeeze the sealant in the glue tube (11) toward the glue outlet tube (12); The displacement detection device (3) is located on one side of the glue outlet tube (12), and the displacement detection device (3) is used to detect the moving distance of the glue gun; The handle (4) is connected to one side of the glue gun body (1). An operation panel (5) is provided on the handle (4). A control button (51) is provided on the surface of the operation panel (5). A controller is provided inside the operation panel (5). The controller is electrically connected to the propulsion device (2), the displacement detection device (3) and the operation panel (5) respectively.

2. The precision dispensing sealant gun of claim 1, wherein, An electrically controlled valve is provided at the connection between the dispensing tube (12) and the glue cylinder (11), and the electrically controlled valve is electrically connected to the controller.

3. The precision dispensing sealant gun of claim 1, wherein, The propulsion device (2) includes a motor (21), a drive sleeve (22), a screw (23), and a push plate (24). The drive sleeve (22) is rotatably mounted on the end cap (13). The drive sleeve (22) has a threaded hole, and the screw (23) engages with the threaded hole. One end of the screw (23) is connected to the push plate (24). The end cap (13) has a through hole for the screw (23) to pass through. The push plate (24) extends into the rubber cylinder (11). The inner side of the rubber cylinder (11) is provided with... The limit strip (111) and the push plate (24) are provided with a limit groove on the edge. The limit groove cooperates with the limit strip (111) to limit the rotation of the screw (23). The push plate (24) moves along the limit strip (111) inside the rubber cylinder (11). The drive sleeve (22) is provided with a gear ring (221) on the outside. The motor (21) is fixed to one side of the end cover (13). The shaft of the motor (21) is equipped with a gear (211). The gear (211) meshes with the gear ring (221).

4. The precision dispensing sealant gun of claim 1, wherein, The displacement detection device (3) includes a roller (31) and a bracket (32). The bracket (32) is installed on one side of the dispensing pipe (12). The roller (31) is installed on the bracket (32). The roller (31) is equipped with an encoder, which is electrically connected to the controller.

5. The precision dispensing sealant gun of claim 4, wherein, The bracket (32) includes a rotating seat (321), a fixing screw (322), and a rocker arm (323). The rotating seat (321) is located on one side of the dispensing tube (12). The rocker arm (323) is rotatably connected to the rotating seat (321). The fixing screw (322) is used to fix the angle between the rocker arm (323) and the rotating seat (321). The roller (31) is installed at the end of the rocker arm (323).

6. The precision dispensing sealant gun of claim 5, wherein, The bracket (32) also includes an adjusting sleeve (324), which is rotatably mounted on the dispensing tube (12). The rotating seat (321) is fixed on one side of the adjusting sleeve (324). When the adjusting sleeve (324) is rotated, the orientation of the roller (31) can be adjusted.

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