Leakage-proof rotary spray gun

Abstract

The utility model relates to the technical field of glue spraying guns, in particular to a leakage-proof rotary spraying gun which comprises a gun base, a flow guide pipe is arranged on the gun base, a rotary drum is sleeved outside the flow guide pipe, the outer wall of the rotary drum is connected with a rotary driving component, and one end of the rotary drum is hermetically and rotatably connected with one end of the flow guide pipe. A mounting structure for mounting a gun head is arranged at one end of the rotary drum; a valve body is arranged in the flow guide pipe, a valve rod is installed on the gun base, and one end of the valve rod extends into the valve body in the flow guide pipe. One end of the flow guide pipe is connected with an air inlet runner, and one side of the air inlet runner is connected with a glue inlet runner. The glue is conveyed through the flow guide pipe, the rotating cylinder arranged outside the flow guide pipe in a sleeving mode is used for driving the gun head to rotate, glue spraying in the rotating process can be achieved, and compared with traditional design, the rotary glue spraying device can achieve rotary glue spraying and has a better leakage-proof effect.

Description

Technical Field

[0001] This application relates to the technical field of glue spray guns, and particularly to a leak-proof rotary spray gun. Background Art

[0002] The glue spray gun, as a tool widely used in the fields of industrial production and handicraft making, its development process is closely linked to the progress of adhesive technology and the growing demand for efficient and precise glue application. In the early manufacturing industry, the application of adhesives was relatively simple and crude, and the glue application method was mostly manual smearing, with low efficiency and difficult to guarantee the glue application quality. With the continuous development of industry, the requirements for the use of adhesives are getting higher and higher. It is not only necessary to ensure the bonding strength and stability, but also to achieve uniform and precise coverage during the glue application process to improve the product quality and production efficiency.

[0003] To ensure the uniformity of glue application, the gun head needs to rotate during the glue spraying process. The traditional spray gun rotates and sprays glue through a rotary joint connected to the front end, which is prone to leakage. The purpose of this project is to develop a leak-proof rotary spray gun to solve this problem. Utility Model Content

[0004] In view of at least one of the above technical problems, this application provides a leak-proof rotary spray gun, adopting the following technical solutions, which solves the problem that the traditional spray gun rotates and sprays glue through a rotary joint connected to the front end and is prone to leakage.

[0005] According to one aspect of this application, a leak-proof rotary spray gun is provided, including a gun base, a diversion tube is arranged on the gun base, a rotating cylinder is sleeved outside the diversion tube, a rotary drive assembly is connected to the outer wall of the rotating cylinder, one end of the rotating cylinder is hermetically and rotatably connected to one end of the diversion tube, and an installation structure for installing a gun head is arranged at one end of the rotating cylinder;

[0006] A valve body is arranged inside the diversion tube, a valve rod is installed on the gun base, and one end of the valve rod extends into the valve body inside the diversion tube;

[0007] One end of the diversion tube is connected to an air inlet flow channel, and one side of the air inlet flow channel is connected to a glue inlet flow channel.

[0008] Through the above technical solutions: the diversion tube is used to transport the colloid, the rotating cylinder is used to drive the rotation and is connected to the gun head, enabling glue spraying during rotation. Compared with the traditional design, this application can not only achieve rotation but also has a better leak-proof effect.

[0009] This utility model is further arranged such that the rotary drive assembly includes a driven gear, the driven gear is fixedly sleeved on the rotating cylinder, and a transmission gear is meshed and connected to one side of the driven gear, and a transmission rod is connected to the middle of the transmission gear;

[0010] Both the rotating cylinder and the transmission rod are rotatably connected to the gun base.

[0011] With the above technical solution: The transmission rod can drive the rotating cylinder to rotate through the transmission gear and the driven gear, thereby realizing rotary glue spraying.

[0012] The present utility model is further configured such that the installation structure is a clamping groove.

[0013] With the above technical solution: The gun head can be clamped on the rotating cylinder through the structure of the clamping groove, and the installation is convenient.

[0014] The present utility model is further configured such that the installation structure is a thread.

[0015] With the above technical solution: Installing the gun head on the rotating cylinder is more stable.

[0016] The present utility model is further configured such that a mixing cavity is provided in the gun seat, and one end of the diversion pipe is connected to one end of the air inlet channel through the mixing cavity.

[0017] With the above technical solution: When various colloids in the air inlet channel enter the mixing cavity, the various colloids collide in the mixing cavity and can form a mixing effect.

[0018] The present utility model is further configured such that the glue inlet channel is provided with a plurality of inlets.

[0019] With the above technical solution: The plurality of inlets can add various colloids simultaneously.

[0020] The present utility model is further configured such that one end of the valve rod is connected with a telescopic power device, and the telescopic power device is fixedly arranged on the gun seat.

[0021] The present utility model is further configured such that the telescopic power device is a push-pull electromagnet.

[0022] With the above technical solution: The push-pull electromagnet can push and pull the valve rod to perform actions.

[0023] The present utility model is further configured such that at least one annular groove is provided on the inner wall of one end of the rotating cylinder, a sealing ring is arranged in the annular groove, and the rotating cylinder is connected with the diversion pipe through the sealing ring.

[0024] With the above technical solution: A stable rotary sealing connection can be achieved between the diversion pipe and the rotating cylinder.

[0025] The present utility model is further configured such that the rotating cylinder is connected with a transmission rod through a belt drive.

[0026] With the above technical solution: Through the design of the belt drive, the transmission rod can drive the rotating cylinder to rotate, and the cost can be reduced compared with the gear drive.

[0027] The present application has the following technical effects:

[0028] The utility model transmits the colloid through a diversion pipe, and a rotating cylinder sleeved outside the diversion pipe is used to drive the gun head to rotate, so that glue spraying during rotation can be realized. Compared with the traditional design, the application can not only realize rotating glue spraying, but also has a better anti-leakage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 is a cross-sectional view of the present application;

[0031] Figure 2 is a three-dimensional view of the internal structure in the present application;

[0032] Figure 3 is a front view of the internal structure in the present application;

[0033] Figure 4 is a front view of the present application.

[0034] REFERENCE SIGNS:

[0035] 1, gun base; 2, telescopic power device; 3, transmission rod; 4, transmission gear; 5, diversion pipe; 6, mixing cavity; 7, valve rod; 8, valve body; 9, rotating cylinder; 10, driven gear; 11, sealing ring; 12, glue inlet channel; 13, air inlet channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] In order to make the above objects, features and advantages of the present application more obvious and understandable, the following will make a detailed description of the specific embodiments of the present application with reference to the drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below. Embodiment 1

[0037] In this embodiment of the present application, as Figures 1 - 4As shown in the figure, a leak-proof rotary spray gun is provided, which includes a gun base 1. A diversion pipe 5 is arranged on the gun base 1. A rotary cylinder 9 is sleeved outside the diversion pipe 5, and a rotary drive assembly is connected to the outer wall of the rotary cylinder 9. The rotary drive assembly includes a driven gear 10. The driven gear 10 is fixedly sleeved on the rotary cylinder 9, and a transmission gear 4 is meshed and connected to one side of the driven gear 10. A transmission rod 3 is connected in the middle of the transmission gear 4. Both the rotary cylinder 9 and the transmission rod 3 are rotatably connected to the gun base 1. The transmission rod 3 is connected to a motor, and the motor drives the transmission rod 3 to rotate, thereby driving the transmission gear 4, the driven gear 10 and the rotary cylinder 9 to rotate, so as to realize rotary glue spraying.

[0038] One end of the rotary cylinder 9 is hermetically and rotatably connected to one end of the diversion pipe 5. At least one annular groove is arranged on the inner wall of one end of the rotary cylinder 9. A sealing ring 11 is arranged in the annular groove. The rotary cylinder 9 is connected to the diversion pipe 5 through the sealing ring 11. This structure enables a stable rotary sealing connection between the diversion pipe 5 and the rotary cylinder 9. And an installation structure for installing a gun head is arranged at one end of the rotary cylinder 9. When the gun head is installed on the rotary cylinder 9, it can rotate with the rotary cylinder 9 to realize rotary glue spraying. The gun head is not directly connected to the rotary cylinder 9 in a straight line, but has a certain angle, and can spray glue around during rotation. The installation structure is a clamping groove, and the gun head can be clamped on the rotary cylinder 9 through the structure of the clamping groove, which is convenient for installation.

[0039] A valve body 8 is arranged in the diversion pipe 5. A valve rod 7 is installed on the gun base 1. One end of the valve rod 7 extends into the valve body 8 in the diversion pipe 5. When the valve rod 7 is inserted into the valve body 8, the valve body 8 can be blocked to realize sealing. And when the valve rod 7 is pulled out of the valve body 8, glue spraying can be carried out again. One end of the valve rod 7 is connected with a telescopic power device 2. The telescopic power device 2 is fixedly arranged on the gun base 1. The telescopic power device 2 is a push-pull electromagnet, and the push-pull electromagnet can push and pull the valve rod 7 to perform actions.

[0040] One end of the diversion pipe 5 is connected with an air inlet channel 13. One side of the air inlet channel 13 is connected with a glue inlet channel 12. The gas flowing at high speed in the air inlet channel 13 can bring the colloid in the glue inlet channel 12 to move forward together. The glue inlet channel 12 is provided with a plurality of inlets, and a plurality of inlets can add a variety of colloids at the same time. A mixing cavity 6 is arranged in the gun base 1. One end of the diversion pipe 5 is connected and communicated with one end of the air inlet channel 13 through the mixing cavity 6. The angle between the mixing cavity 6 and the air inlet channel 13 is 90°. When a variety of colloids in the air inlet channel 13 enter the mixing cavity 6, they need to pass through a 90° corner before they can enter the diversion pipe 5. The variety of colloids collide in the mixing cavity 6 to form a mixing effect. Embodiment Two

[0041] This Embodiment Two is an improvement based on Embodiment One. In order to make the installation of the gun head on the rotary cylinder 9 more stable, in this embodiment, the installation structure is a thread. By installing the gun head through the thread structure, the gun head is made more stable. Embodiment Three

[0042] This third embodiment is an improvement based on the first embodiment. In order to reduce costs and have an overload protection function, in this embodiment, the rotating cylinder 9 is connected to a transmission rod 3 through a belt drive. The design of the belt drive enables the transmission rod 3 to drive the rotating cylinder 9 to rotate.

[0043] Working principle: The intake air flow path 13 is connected to a high-pressure gas source, the transmission rod 3 is connected to a motor, and the rotating cylinder 9 is connected to a gun head for spraying glue. During operation, the telescopic power device 2 pulls the valve rod 7 away from the valve body 8, enabling the diversion pipe 5 to be unblocked. The gas flowing at high speed in the intake air flow path 13 can carry the colloid in the glue intake flow path 12 forward together, enter the mixing cavity 6, then enter the diversion pipe 5, and finally reach the gun head installed at one end of the rotating cylinder 9. Since the rotating cylinder 9 is driven to rotate by the driven gear 10, the driving gear 4, and the transmission rod 3, the gun head installed at one end of the rotating cylinder 9 can rotate together, realizing glue spraying during rotation.

[0044] The above are only the preferred embodiments of this application and do not impose any formal restrictions on this application. Any person skilled in the art can make many possible changes and modifications to the technical solution of this application, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of this application. Therefore, all equivalent changes made according to the shape, structure, and principle of this application without departing from the content of the technical solution of this application shall be covered by the protection scope of this application.

Claims

1. A leak-proof rotary spray gun, characterized in that: The gun base (1) comprises a gun base (1), a guide tube (5) being arranged on the gun base (1), a rotating cylinder (9) being arranged on the outer shell of the guide tube (5), a rotating cylinder (9) being connected to the outer wall of the rotating cylinder (9) with a rotating drive assembly, one end of the rotating cylinder (9) being sealingly rotatably connected to one end of the guide tube (5), and one end of the rotating cylinder (9) being provided with a mounting structure for mounting a gun head; A valve body (8) is arranged in the flow guide tube (5), a valve stem (7) is mounted on the gun seat (1), and one end of the valve stem (7) extends into the valve body (8) in the flow guide tube (5); One end of the flow guide tube (5) is connected to an inlet flow channel (13), and one side of the inlet flow channel (13) is connected to a glue inlet flow channel (12).

2. The leak-proof rotary spray gun according to claim 1, characterized in that: The rotary drive assembly comprises a driven gear (10), the driven gear (10) being fixedly sleeved on the rotating drum (9), and one side of the driven gear (10) being meshingly connected to a transmission gear (4), and the middle of the transmission gear (4) being connected to a transmission rod (3); The rotating cylinder (9) and the transmission rod (3) are both rotatably connected to the gun seat (1).

3. The leak-proof rotary spray gun according to claim 1, characterized in that: The installation structure is a card slot.

4. The leak-proof rotary spray gun according to claim 1, characterized in that: The mounting structure is a thread.

5. The leak-proof rotary spray gun according to claim 1, characterized in that: A mixing chamber (6) is provided in the gun seat (1), and one end of the flow guide tube (5) is connected to one end of the intake channel (13) through the mixing chamber (6).

6. The leak-proof rotary spray gun according to claim 1, characterized in that: The glue inlet channel (12) is provided with a plurality of inlets.

7. The leak-proof rotary spray gun according to claim 1, characterized in that: One end of the valve stem (7) is connected to a telescopic power device (2), and the telescopic power device (2) is fixedly arranged on the gun seat (1).

8. The leak-proof rotary spray gun according to claim 7, characterized in that: The telescopic power device (2) is a push-pull electromagnet.

9. The leak-proof rotary spray gun according to claim 1, characterized in that: At least one annular groove is provided on the inner wall of one end of the rotating drum (9), a sealing ring (11) is provided in the annular groove, and the rotating drum (9) is connected to the flow guide pipe (5) via the sealing ring (11).

10. The leak-proof rotary spray gun according to claim 1, characterized in that: The rotating drum (9) is connected to a transmission rod (3) via a belt drive.

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