Valve rod control structure of automatic glue gun

Abstract

The utility model belongs to the technical field of glue guns, and particularly relates to a valve rod control structure of an automatic glue gun, which comprises a valve body, a valve core, a valve rod and a control assembly, the upper air cylinder assembly comprises an upper air cylinder body, an upper piston is arranged in the upper air cylinder body and divides the interior of the upper air cylinder body into a first cavity and a second cavity, and a first air quick-inserting elbow is arranged on the side wall of the first cavity. The lower air cylinder assembly comprises a lower air cylinder body, a lower piston is arranged in the lower air cylinder body, the lower piston divides the interior of the lower air cylinder body into a third cavity and a fourth cavity, and the first cavity is communicated with the third cavity. A second air quick-insertion elbow communicated with the second cavity is arranged on the side wall of the lower cylinder body; the lower piston is connected with the upper piston and the valve rod. The first air quick-inserting elbow and the second air quick-inserting elbow are respectively controlled to convey air to the first cavity, the second cavity and the third cavity so as to adjust the stress of the upper piston and the lower piston, so that the movement of the valve core is controlled to automatically control the opening and closing of the glue gun.

Description

Technical Field

[0001] The utility model relates to the technical field of glue guns, in particular to a valve stem control structure of an automatic glue gun. Background Art

[0002] As the performance of industrial glue is getting better and better, the scope of use of industrial glue is getting wider and wider. Industrial glue is usually applied through a glue gun when used. Currently, a large number of glue guns are manual glue guns. Manual glue guns require manual operation to turn a wrench to control the switch of the glue gun. There is a valve inside the glue gun, and the valve is connected and closed by a wrench. However, due to the high pressure inside the glue gun, it is very laborious to use, and the glue gun cannot be closed in time, and excess glue will be discharged. On the one hand, it will cause waste, and on the other hand, the glue is very sticky and very inconvenient to clean.

[0003] Therefore, in view of the above problems, the utility model document proposes a valve stem control structure of an automatic glue gun. Utility Model Content

[0004] The utility model provides a valve stem control structure of an automatic glue gun, which reduces the operating difficulty of workers and can quickly control the movement of the valve stem, thereby controlling the connection and closing of a valve body inside the glue gun.

[0005] The utility model provides the following technical solutions:

[0006] A valve stem control structure of an automatic glue gun, comprising a valve body, a valve core arranged in the valve body, and a valve stem connected to the valve core, and also comprising a control assembly, wherein the control assembly comprises an upper cylinder assembly and a lower cylinder assembly, wherein one end of the lower cylinder assembly is connected to the upper cylinder assembly, and the other end is connected to the valve body;

[0007] The upper cylinder assembly comprises an upper cylinder body, an upper piston is arranged in the upper cylinder body, the upper piston divides the upper cylinder body into a first chamber and a second chamber, and a first air quick-plug elbow is arranged on the side wall of the first chamber;

[0008] The lower cylinder assembly includes a lower cylinder body, in which a lower piston is provided, and the lower piston divides the lower cylinder body into a third chamber and a fourth chamber, the first chamber is connected to the third chamber, and an air pressure regulating hole is opened on the side wall of the fourth chamber; the side wall of the lower cylinder body is also provided with a second air quick-connect elbow, and the second air quick-connect elbow is connected to the second chamber; the end face of the lower piston is connected to the upper piston, and the other end face on the opposite side is connected to the valve stem.

[0009] Furthermore, the upper piston is an annular structure, and a connecting sleeve is provided on one end surface.

[0010] Furthermore, one side of the lower piston is provided with a first connecting shaft that cooperates with the connecting sleeve of the upper piston, and the other side of the opposite side is provided with a second connecting shaft connected to the valve stem; the first connecting shaft is provided with a first air duct connected to the first chamber along the length direction, and the side wall is provided with a second air duct connected to the first air duct, and the second air duct is connected to the third chamber.

[0011] Furthermore, a third air passage is provided on the end surface where the lower cylinder body is connected to the upper cylinder body, and the third air passage is communicated with the second air quick-plug elbow and the second chamber.

[0012] Furthermore, it also includes a connecting component, which is arranged between the valve body and the lower cylinder component. The connecting component includes a connecting block and a spring. The connecting block is fixedly arranged on a side of the lower cylinder body close to the valve body. The spring is sleeved on the second connecting shaft. One end of the spring abuts against the lower piston, and the other end abuts against the connecting block. The second connecting shaft passes through the connecting block.

[0013] Furthermore, the upper cylinder body and the lower cylinder body are both box-shaped structures, the side of the opening of the upper cylinder body is connected to the lower cylinder body, and a sealing ring is provided at the connection, and a connecting block is provided at the open end of the lower cylinder body.

[0014] Furthermore, the side walls of the upper piston and the lower piston are both provided with sealing rings; the contact surface between the lower cylinder body and the connecting sleeve and the contact surface between the connecting block and the second connecting shaft are both provided with sealing rings.

[0015] In the utility model, air pressure is input into the first chamber and the third chamber through the first air quick-plug elbow, and the air pressure in the second chamber and the fourth chamber is adjusted through the second air quick-plug elbow and the air pressure regulating hole, so that the upper piston and the lower piston move, and then the valve stem moves, thereby moving the valve core, so that the valve core is separated from the valve body, and the glue gun is opened. Gas is input into the second chamber through the second air quick-plug elbow, and the gas in the first chamber and the third chamber is discharged through the first air quick-plug elbow, so that the upper piston and the lower piston are reset, and then the valve stem moves, so that the valve core is pulled to close the glue gun. The entire control mechanism is controlled by air pressure, which greatly reduces the difficulty of operation for workers, and can quickly control the valve stem to realize the switch of the glue gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic cross-sectional view of a valve stem control structure of an automatic glue gun provided by an embodiment of the present invention.

[0017] Reference numerals:

[0018] 1. Upper cylinder body; 101. First chamber; 102. Second chamber; 2. Lower cylinder body; 201. Third chamber; 202. Fourth chamber; 3. Valve body; 4. Valve stem; 5. Valve core; 6. Connecting block; 7. Upper piston; 8. Connecting sleeve; 9. Lower piston; 10. First connecting shaft; 11. Second connecting shaft; 12. First air quick-connect elbow; 13. Second air quick-connect elbow; 14. First air passage; 15. Second air passage; 16. Third air passage; 17. Spring; 18. Air pressure regulating hole. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present utility model, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model.

[0021] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0022] In the embodiment of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0023] References to "one embodiment" or "some embodiments" etc. described in this specification mean that one or more embodiments of the utility model include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0024] Example:

[0025] Reference Figure 1 As shown, a valve stem 4 control structure of an automatic glue gun includes a valve body 3, a valve core 5 disposed in the valve body 3, and a valve stem 4 connected to the valve core 5, and also includes a control component, the control component includes an upper cylinder component and a lower cylinder component, one end of the lower cylinder component is connected to the upper cylinder component, and the other end is connected to the valve body 3;

[0026] The upper cylinder assembly comprises an upper cylinder body 1, in which an upper piston 7 is arranged, and the upper piston 7 divides the upper cylinder body 1 into a first chamber 101 and a second chamber 102, and a first air quick-plug elbow 12 is arranged on the side wall of the first chamber 101;

[0027] The lower cylinder assembly includes a lower cylinder body 2, in which a lower piston 9 is provided. The lower piston 9 divides the lower cylinder body 2 into a third chamber 201 and a fourth chamber 202. The first chamber 101 is connected to the third chamber 201, and an air pressure regulating hole 18 is opened on the side wall of the fourth chamber 202. A second air quick-connect elbow 13 is also provided on the side wall of the lower cylinder body 2, and the second air quick-connect elbow 13 is connected to the second chamber 102. The end face of the lower piston 9 is connected to the upper piston 7, and the other end face on the opposite side is connected to the valve stem 4.

[0028] The gas is transported to the first chamber 101 through the first air quick-connect elbow 12. Since the first chamber 101 and the third chamber 201 are connected, the air pressure in the first chamber 101 and the third chamber 201 increases, thereby increasing the air pressure on one side of the upper piston 7 and the lower piston 9 on the principle valve stem 4. At the same time, the gas in the second chamber 102 is discharged by the second air quick-connect elbow 13, and the air in the fourth chamber 202 is discharged from the air pressure regulating hole 18, so that the upper piston 7 and the lower piston 9 move toward the valve stem 4, thereby pushing the valve stem 4 to move and driving the valve core 5 at the same time. The first and second air chambers 101 and 201 are connected by a plurality of air pipes 12, and the second and third air chambers 102 are connected by a plurality of air pipes 13. The second and third air chambers 101 and 201 are connected by a plurality of air pipes 12, and the plurality of air pipes 12 are connected by a plurality of air pipes 13. The plurality of air pipes 12 are connected by a plurality of air pipes 12, and the plurality of air pipes 12 are connected by a plurality of air pipes 13. The plurality of air pipes 12 are connected by a plurality of air pipes 12, and the plurality of air pipes 12 are connected by a plurality of air pipes 12 ...

[0029] The upper piston 7 is an annular structure, and a connecting sleeve 8 is provided on one end surface.

[0030] The upper piston 7 is annular, and the connecting sleeve 8 is a cylindrical structure, which can provide a passage for the gas. At the same time, the connecting sleeve 8 is also convenient for connecting with the lower piston 9.

[0031] A first connecting shaft 10 matching with the connecting sleeve 8 of the upper piston 7 is provided on one side of the lower piston 9, and a second connecting shaft 11 connected with the valve stem 4 is provided on the other side of the opposite side; a first air channel 14 connected with the first chamber 101 is provided inside the first connecting shaft 10 along the length direction, and a second air channel 15 connected with the first air channel 14 is provided on the side wall, and the second air channel 15 is connected with the third chamber 201.

[0032] The first connecting shaft 10 is connected with the connecting sleeve 8 in cooperation, so that the upper piston 7 and the lower piston 9 move together. At the same time, the first air channel 14 and the second air channel 15 provided on the first connecting shaft 10 are connected with the inside of the connecting sleeve 8, so that the first chamber 101 is connected with the third chamber 201, and the gas delivered by the first air quick-connect elbow 12 can enter the third chamber 201, exerting pressure on the lower piston 9. The upper piston 7 and the lower piston 9 are affected by the air pressure at the same time, which can quickly drive the valve stem 4 to move, thereby increasing the speed of opening the switch with the glue gun.

[0033] A third air passage 16 is provided on the end surface of the lower cylinder body 2 connected to the upper cylinder body 1 . The third air passage 16 is communicated with the second air quick-connect elbow 13 and the second chamber 102 .

[0034] By opening the third air passage 16 on the lower cylinder body 2, the gas transported by the second air quick-connect elbow 13 enters the second chamber 102 through the third air passage 16, exerting pressure on the side of the upper piston 7 close to the valve stem 4, thereby pushing the upper piston 7 to move, thereby driving the valve stem 4 to move.

[0035] It also includes a connecting component, which is arranged between the valve body 3 and the lower cylinder component. The connecting component includes a connecting block 6 and a spring 17. The connecting block 6 is fixedly arranged on the side of the lower cylinder body 2 close to the valve body 3. The spring 17 is sleeved on the second connecting shaft 11. One end of the spring 17 abuts against the lower piston 9, and the other end abuts against the connecting block 6. The second connecting shaft 11 passes through the connecting block 6.

[0036] The spring 17 is supported by the connecting assembly. When the glue gun is closed, the second air quick-connect elbow 13 applies air pressure to the upper piston 7, and the spring 17 can apply elastic force to the lower piston 9, so that the lower piston 9 moves in the same direction as the upper piston 7, thereby increasing the speed of closing the glue gun.

[0037] The upper cylinder body 1 and the lower cylinder body 2 are both box-shaped structures. The open side of the upper cylinder body 1 is connected to the lower cylinder body 2, and a sealing ring is provided at the connection. The open end of the lower cylinder body 2 is provided with a connecting block 6.

[0038] The side walls of the upper piston 7 and the lower piston 9 are both provided with sealing rings; the contact surface between the lower cylinder body 2 and the connecting sleeve 8 and the contact surface between the connecting block 6 and the second connecting shaft 11 are both provided with sealing rings.

[0039] The sealing effect of the connection is ensured by the sealing ring, thereby ensuring the sealing of the first chamber 101, the second chamber 102 and the third chamber 201, so that the air pressure can act on the upper piston 7 and the lower piston 9 to ensure the normal movement of the upper piston 7 and the lower piston 9, thereby ensuring the normal movement of the valve stem 4.

[0040] When in use, connect the air source to the first air quick-plug elbow 12 and the second air quick-plug elbow 13. If the glue gun is to be opened, the first air quick-plug elbow 12 will deliver the gas, while the second air quick-plug elbow 13 will stop delivering the gas, so that the air pressure in the first chamber 101 and the third chamber 201 will increase, and then the air pressure on one side of the upper piston 7 and the lower piston 9 relative to the valve stem 4 will be greater than the air pressure on the other side, so that the upper piston 7 and the lower piston 9 move toward the valve stem 4. At the same time, the valve stem 4 drives the valve core 5 to move, so that the valve core 5 is separated from the valve body 3, and then the glue gun is opened. When the upper piston 7 and the lower piston 9 move, the space in the second chamber 102 and the fourth chamber 202 will decrease, and the gas in the second chamber 102 will pass through the second air quick-plug elbow The gas in the fourth chamber 202 is discharged through the air pressure regulating hole 18, and the air pressure will not increase due to the reduction of space, thereby ensuring the normal movement of the upper piston 7 and the lower piston 9, and further ensuring the opening degree of the valve core 5; when the glue gun is to be closed, the first air quick-plug elbow 12 stops delivering gas, and the second air quick-plug elbow 13 starts delivering gas, and the gas enters the second chamber 102 from the third air channel 16, so that the air pressure in the second chamber 102 increases, pushing the upper piston 7 to move away from the valve stem 4, and the lower piston 9, under the action of the elastic force of the spring 17, also moves away from the valve stem 4, thereby driving the valve stem 4 to move, thereby driving the valve core 5 to move, so that the valve core 5 cooperates with the valve body 3, and then closing the glue gun.

[0041] By controlling the gas delivery of the first air quick-plug elbow 12 and the second air quick-plug elbow 13 to control the opening and closing of the glue gun, the glue gun can be quickly controlled, while reducing the operating difficulty of the workers and effectively avoiding the waste of glue.

[0042] In actual use, the connecting sleeve 8 and the upper piston 7 are integrally formed, and the first connecting shaft 10, the lower piston 9 and the second connecting shaft 11 are integrally formed, which can improve the structural strength.

[0043] The first connecting shaft 10 is threadedly connected to the connecting sleeve 8, a threaded hole is arranged at the end of the second connecting shaft 11, and the valve stem 4 is threadedly connected to the second connecting shaft 11, which is convenient for assembly and can ensure the stability of the connection.

[0044] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model; in the absence of conflicts, the embodiments of the utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A valve stem control structure of an automatic glue gun, comprising a valve body, a valve core arranged in the valve body, and a valve stem connected to the valve core, characterized in that: It also includes a control assembly, which includes an upper cylinder assembly and a lower cylinder assembly, one end of the lower cylinder assembly is connected to the upper cylinder assembly, and the other end is connected to the valve body; The upper cylinder assembly comprises an upper cylinder body, an upper piston is arranged in the upper cylinder body, the upper piston divides the upper cylinder body into a first chamber and a second chamber, and a first air quick-plug elbow is arranged on the side wall of the first chamber; The lower cylinder assembly includes a lower cylinder body, in which a lower piston is provided, and the lower piston divides the lower cylinder body into a third chamber and a fourth chamber, the first chamber is connected to the third chamber, and an air pressure regulating hole is opened on the side wall of the fourth chamber; the side wall of the lower cylinder body is also provided with a second air quick-connect elbow, and the second air quick-connect elbow is connected to the second chamber; the end face of the lower piston is connected to the upper piston, and the other end face on the opposite side is connected to the valve stem.

2. The valve stem control structure of an automatic glue gun according to claim 1, characterized in that: The upper piston is an annular structure, and one end surface is provided with a connecting sleeve.

3. The valve stem control structure of an automatic glue gun according to claim 2, characterized in that: A first connecting shaft matching with the connecting sleeve of the upper piston is provided on one side of the lower piston, and a second connecting shaft connected to the valve stem is provided on the other side of the opposite side; a first air channel connected to the first chamber is provided inside the first connecting shaft along the length direction, a second air channel connected to the first air channel is provided on the side wall, and the second air channel is connected to the third chamber.

4. The valve stem control structure of an automatic glue gun according to claim 3, characterized in that: The end surface of the lower cylinder body connected to the upper cylinder body is provided with a third air passage, and the third air passage is communicated with the second air quick-plug elbow and the second chamber.

5. The valve stem control structure of an automatic glue gun according to claim 4, characterized in that: It also includes a connecting component, which is arranged between the valve body and the lower cylinder component. The connecting component includes a connecting block and a spring. The connecting block is fixedly arranged on a side of the lower cylinder body close to the valve body. The spring is sleeved on the second connecting shaft. One end of the spring abuts against the lower piston, and the other end abuts against the connecting block. The second connecting shaft passes through the connecting block.

6. The valve stem control structure of an automatic glue gun according to claim 5, characterized in that: The upper cylinder body and the lower cylinder body are both box-shaped structures. The side of the opening of the upper cylinder body is connected to the lower cylinder body, and a sealing ring is arranged at the connection. The open end of the lower cylinder body is provided with a connecting block.

7. The valve stem control structure of an automatic glue gun according to claim 6, characterized in that: The side walls of the upper piston and the lower piston are both provided with sealing rings; the contact surface between the lower cylinder body and the connecting sleeve and the contact surface between the connecting block and the second connecting shaft are both provided with sealing rings.

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