Pneumatic rotary gun valve

Abstract

The utility model belongs to the technical field of gun nozzle valves, and particularly relates to a pneumatic rotary gun valve which comprises an upper shell, a lower shell and a gun nozzle, a glue outlet is formed in the lower shell, the gun nozzle is fixedly arranged in the glue outlet, a rotary gear is arranged in the lower shell, a rotary gear fixing sleeve is arranged on the outer surface of the gun nozzle, and a pushing chamber is fixedly arranged outside the lower shell. A pneumatic piston pusher is arranged in the pushing chamber, a single-face threaded gear rod is arranged at one end of the pneumatic piston pusher, and the single-face threaded gear rod penetrates through the lower shell to be connected with a rotating gear in the lower shell in a meshed mode. According to the utility model, the rotary gear is pushed to rotate through the single-sided threaded gear push rod so as to control the gun nozzle to rotate, so that the gun nozzle can always keep a certain angle to discharge glue, the glue discharge stability is improved, and the phenomenon of glue overflow and lack in some places is prevented. The built-in gear reduces the occupied area, reduces the potential safety hazard of operation, isolates the influence of external dust and impurities on the gear, and prolongs the service life of equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of gun nozzle valves, in particular to a pneumatic rotary gun valve. Background Art

[0002] The nozzle valve is a commonly used dispensing device in glue dispensing equipment. However, common rotary nozzle valves on the market all use large external rotating gears to control the nozzle rotation. External rotating gears are too large and take up too much space. They are also easily exposed to dust, which can affect the normal operation of the gears over time. In workshops, dust and impurities are often present, and the accumulation of impurities between the gears can reduce sensitivity and require frequent cleaning. Furthermore, external gears can pose a safety hazard, so a rotary nozzle valve with internal gears is needed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a pneumatic rotary gun valve in view of the above-mentioned defects.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows: a pneumatic rotary gun valve, comprising an upper shell, a lower shell and a gun nozzle, the upper shell is arranged above the lower shell, the upper shell is fixedly connected to the lower shell, the gun nozzle is vertically rotatably arranged inside the lower shell, a glue outlet is opened in the lower shell, the gun nozzle is fixedly arranged in the glue outlet, a limiting block is arranged around the edge of the glue outlet at the top of the glue outlet, a cover plate that matches the limiting block is provided on the top of the gun nozzle, a rotating gear is provided in the lower shell, a rotating gear fixing sleeve is provided on the outer surface of the gun nozzle, a push chamber is fixedly provided on the outside of the lower shell, a pneumatic piston push is provided in the push chamber, a single-sided threaded gear rod is provided at one end of the pneumatic piston push, the single-sided threaded gear rod passes through the lower shell and is meshed with the rotating gear in the lower shell.

[0005] Furthermore, a glue inlet is provided in the upper shell, and the glue inlet can be communicated with the glue outlet in the lower shell.

[0006] Furthermore, the glue inlet includes a first glue inlet pipe and a second glue inlet pipe, and the second glue inlet pipe is connected to the glue outlet on the lower shell.

[0007] Furthermore, a piston is provided in the upper shell body, the bottom of the piston is connected to a pushing block, and the pushing block is movably provided in the second glue inlet pipe.

[0008] Furthermore, a rotating chamber is provided in the lower shell, and the rotating gear is rotatably provided in the rotating chamber.

[0009] Furthermore, a positioning rod is vertically fixed on the bottom of the upper shell, and a positioning hole that matches the positioning rod is opened through the lower shell. The positioning rod can slide through the positioning hole, and a fastening bolt is provided at the bottom of one end of the positioning rod passing through the positioning hole.

[0010] The beneficial effects of the utility model are:

[0011] The utility model uses a built-in rotating gear and a single-sided threaded gear push rod to push the rotating gear to rotate, thereby controlling the rotation of the nozzle. This allows the nozzle to always maintain a certain angle to discharge glue, improves the stability of glue discharge, and prevents glue overflow or insufficient glue in some areas. The built-in gear reduces the area occupied, making it more convenient for workers to operate and reducing safety hazards. At the same time, the built-in gear can isolate the gears from the effects of external dust and impurities, thereby increasing the service life of the equipment. The push rod is used to push the piston back and forth at 90 degrees to achieve rotational control of the nozzle, achieving fast and accurate rotation. The utility model is simple to operate and has high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description in conjunction with the accompanying drawings.

[0013] Figure 1 This is a front sectional view of the present invention.

[0014] Figure 2 This is a top view of the pneumatic piston push and single-sided threaded gear rod of the utility model.

[0015] Figure 3 This is an enlarged schematic diagram of point A of the present invention.

[0016] Among them: 1 is the upper shell; 2 is the lower shell; 3 is the nozzle; 4 is the glue outlet; 5 is the limit block; 6 is the cover plate; 7 is the rotating gear; 8 is the pushing chamber; 9 is the pneumatic piston push; 10 is the single-sided threaded gear rod; 11 is the glue inlet; 12 is the first glue inlet pipe; 13 is the second glue inlet pipe; 14 is the piston, 15 is the pushing block, 16 is the rotating chamber, 17 is the positioning rod, 18 is the positioning hole, and 19 is the fastening bolt. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] See also Figure 1-3As shown, a pneumatic rotary gun valve includes an upper shell 1, a lower shell 2 and a gun nozzle 3. The upper shell 1 is arranged above the lower shell 2, and the upper shell 1 is fixedly connected to the lower shell 2. The gun nozzle 3 is vertically rotatable and arranged inside the lower shell 2. A glue outlet 4 is opened in the lower shell 2, and the gun nozzle 3 is fixedly arranged in the glue outlet 4. A limiting block 5 is arranged around the edge of the glue outlet 4 on the top of the glue outlet 4, and a cover plate 6 that matches the limiting block 5 is provided on the top of the gun nozzle 3. A rotating gear 7 is provided in the lower shell 2, and a rotating gear 7 fixing sleeve is provided on the outer surface of the gun nozzle 3. A push chamber 8 is fixedly provided on the outside of the lower shell 2, and a pneumatic piston push 9 is provided in the push chamber 8. A single-sided threaded gear rod 10 is provided at one end of the pneumatic piston push 9, and the single-sided threaded gear rod 10 passes through the lower shell 2 and is meshed with the rotating gear 7 in the lower shell 2.

[0019] Furthermore, a glue inlet 11 is provided in the upper shell 1 , and the glue inlet 11 can be communicated with the glue outlet 4 in the lower shell 2 .

[0020] Furthermore, the glue inlet 11 includes a first glue inlet pipe 12 and a second glue inlet pipe 13 , and the second glue inlet pipe 13 is connected to the glue outlet 4 on the lower shell 2 .

[0021] Furthermore, a piston 14 is provided in the upper shell 1 , and a push block 15 is connected to the bottom of the piston 14 . The push block 15 is movably provided in the second glue inlet pipe 13 .

[0022] Furthermore, a rotation chamber 16 is provided in the lower housing 2 , and the rotation gear 7 is rotatably provided in the rotation chamber 16 .

[0023] Furthermore, a positioning rod 17 is vertically fixed at the bottom of the upper shell 1, and a positioning hole 18 that matches the positioning rod 17 is opened through the lower shell 2. The positioning rod 17 can slide through the positioning hole 18, and a fastening bolt 19 is provided at the bottom of one end of the positioning rod 17 passing through the positioning hole 18.

[0024] In the embodiment of this utility model, please refer to Figure 1-Figure 3Working Principle: By manipulating the pneumatic piston pusher 9 in the push chamber 8, a single-sided threaded gear rod 10 at one end of the pneumatic piston pusher 9 meshes with the rotating gear 7 in the rotating chamber 16. The rotating gear 7 is fixed to the outer surface of the nozzle 3, allowing the pneumatic piston pusher 9 to control the rotation angle of the nozzle 3. The pusher pushes the pneumatic piston pusher 9 back and forth in 90-degree movements to achieve fast and accurate rotation of the nozzle 3. The nozzle 3 is fixed in the glue outlet 4. The top of the glue outlet 4 is provided with a limit block 5 around the edge of the glue outlet 4. The top of the nozzle 3 is provided with a cover plate 6 that fits over the limit block 5, which can cover the limit block 5, ensuring that the nozzle 3 is firmly fixed in the glue outlet 4 and facilitating the rotation of the nozzle 3 within the glue outlet 4. The operator can rotate the nozzle 3 in real time according to the glue discharge route, ensuring that the nozzle 3 always discharges glue along the specified angle, avoiding glue overflow or glue shortage at the glue application point and maintaining glue discharge stability along the route.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0026] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A pneumatic rotary gun valve, comprising an upper housing (1), a lower housing (2) and a gun nozzle (3), wherein the upper housing (1) is arranged above the lower housing (2), the upper housing (1) and the lower housing (2) are fixedly connected, and the gun nozzle (3) is arranged vertically and rotatably inside the lower housing (2), characterized in that: A glue outlet (4) is provided in the lower shell (2), the gun nozzle (3) is fixedly arranged in the glue outlet (4), a limit block (5) is provided at the top of the glue outlet (4) around the edge of the glue outlet (4), and a cover plate (6) that matches the limit block (5) is provided at the top of the gun nozzle (3), a rotating gear (7) is provided in the lower shell (2), and a fixed sleeve of the rotating gear (7) is provided on the outer surface of the gun nozzle (3), a pushing chamber (8) is fixedly provided on the outside of the lower shell (2), a pneumatic piston push (9) is provided in the pushing chamber (8), and a single-sided threaded gear rod (10) is provided at one end of the pneumatic piston push (9), and the single-sided threaded gear rod (10) passes through the lower shell (2) and is meshed with the rotating gear (7) in the lower shell (2).

2. A pneumatic rotary gun valve according to claim 1, characterized in that: A glue inlet (11) is provided in the upper shell (1), and the glue inlet (11) can be communicated with the glue outlet (4) in the lower shell (2).

3. A pneumatic rotary gun valve according to claim 2, characterized in that: The glue inlet (11) comprises a first glue inlet pipe (12) and a second glue inlet pipe (13), and the second glue inlet pipe (13) is connected to the glue outlet (4) on the lower shell (2).

4. A pneumatic rotary gun valve according to claim 3, characterized in that: A piston (14) is provided in the upper shell (1), and a push block (15) is connected to the bottom of the piston (14). The push block (15) is movably provided in the second glue inlet pipe (13).

5. The pneumatic rotary gun valve according to claim 1, characterized in that: A rotating chamber (16) is provided in the lower housing (2), and the rotating gear (7) is rotatably provided in the rotating chamber (16).

6. The pneumatic rotary gun valve according to claim 1, characterized in that: A positioning rod (17) is vertically fixed at the bottom of the upper shell (1), and a positioning hole (18) that matches the positioning rod (17) is opened through the lower shell (2). The positioning rod (17) can slide through the positioning hole (18), and a fastening bolt (19) is provided at the bottom of one end of the positioning rod (17) passing through the positioning hole (18).

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