Electric glue gun with anti-dripping glue

Abstract

The utility model discloses a kind of electric glue gun with anti-dripping glue, belong to electric glue gun technical field, including electric glue gun body, glue mechanism, be set in electric glue gun body inside, heating pipeline, be set in electric glue gun body inside, the heating pipeline one end is provided with gun head, anti-dripping mechanism is set between the heating pipeline and gun head, the anti-dripping mechanism includes the mounting post being set in heating pipeline, the mounting post is hollow, the one end of the mounting post towards muzzle is provided with valve, effect is through setting anti-dripping component, when carrying out glue work in electric glue gun body, valve is opened, so that colloid exposes from gun head, when not working, valve returns to mounting post inside, so it can effectively when electric glue gun body does not work, valve will mounting post be closed, prevent colloid drip, simultaneously will not affect the normal work of electric glue gun body.

Description

Technical Field

[0001] This utility model belongs to the field of electric glue gun technology, and in particular, it is an electric glue gun with anti-drip function. Background Technology

[0002] Electric glue guns, a common tool for applying hot melt adhesive, work by melting solid glue strips into liquid glue through an internal electric heating device. The molten glue is then extruded from the nozzle using a manual or automatic feeding mechanism (such as a trigger), thus bonding, sealing, or encapsulating workpieces. Due to their ease of use and rapid curing, electric glue guns are widely used in many fields, including electronic assembly, packaging, handicrafts, and home repair.

[0003] Traditional electric glue guns have a long-standing technical flaw that has not been effectively resolved: when the trigger is stopped but the gun body is still under high temperature, the molten glue will drip uncontrollably from the nozzle. This phenomenon is mainly caused by the following two physical factors: Gravity: The nozzle is usually tilted downwards when used, and the liquid glue accumulated in the gun body flows downwards naturally under its own gravity; Thermal expansion and fluidity: Continuous heating keeps the glue at a very low viscosity and may cause thermal expansion, further aggravating its fluidity.

[0004] The aforementioned glue dripping problem has caused a series of negative impacts that cannot be ignored: unnecessary dripping leads to the loss of glue material, increases the cost of use, and dripping glue will contaminate the work surface, product surface or workpiece to be processed, which not only affects the appearance, but also makes the subsequent cleaning work extremely cumbersome and reduces the overall work efficiency.

[0005] The purpose of this invention is to provide an electric glue gun with anti-drip properties to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to provide an electric glue gun with anti-drip properties to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an anti-drip electric glue gun, comprising a glue gun body, a glue dispensing mechanism disposed inside the glue gun body, and a heating pipe disposed inside the glue gun body. A nozzle is provided at one end of the heating pipe, and an anti-drip mechanism is provided between the heating pipe and the nozzle. The anti-drip mechanism includes a hollow mounting post disposed within the heating pipe. A valve is provided at the end of the mounting post facing the nozzle. An elastic component is provided between the valve and the mounting post. The glue dispensing mechanism pushes molten glue into the mounting post, opening the valve. The elastic component is stretched, stopping the glue dispensing. The elastic component then returns to its original position, pulling the valve back into the mounting post.

[0008] Furthermore, the glue-applying mechanism includes a trigger disposed on one side of the glue gun body, one end of the trigger is connected to a connecting rod, one end of the connecting rod is connected to a first spring, and the end of the first spring is provided with a connecting post.

[0009] Furthermore, a connecting plate is connected to the end of the connecting column, a limiting plate is provided on the top of the connecting plate, a sliding block is provided on the top of the limiting plate, and a glue rod is placed inside the sliding block.

[0010] Furthermore, a rubber tube is provided at the other end of the heating pipe, a limiting groove is provided inside the electric glue gun body, and the limiting plate is slidably connected within the limiting groove.

[0011] Furthermore, the elastic component includes a mounting bracket disposed at the other end of the mounting column, a mounting plate disposed at the center of the mounting bracket, and a receiving column disposed on the side of the mounting plate facing the valve.

[0012] Furthermore, the storage column is hollow and has a moving groove inside. A sliding column is provided inside the storage column, and a moving block is provided on the outside of the sliding column. The moving block is slidably connected in the moving groove. A second spring is provided at the end of the sliding column, and the end of the second spring is connected inside the storage column.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention incorporates an anti-drip component. When the glue gun is in operation, the valve is opened, allowing the glue to protrude from the nozzle. When not in use, the valve returns to the mounting post. This effectively seals the mounting post when the glue gun is not in operation, preventing glue leakage without affecting the normal operation of the glue gun. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the electric glue gun body in this utility model; Figure 3 This is a schematic diagram of the internal structure of the heating pipe in this utility model; Figure 4This is a schematic diagram of the mounting column in this utility model; Figure 5 This is an exploded structural diagram of the valve and mounting column in this utility model.

[0016] Explanation of reference numerals in the attached figures: In the picture: 1. Electric glue gun body; 2. Glue stick; 3. Trigger; 4. Connecting rod; 5. First spring; 6. Connecting post; 7. Connecting plate; 8. Sliding block; 9. Limiting plate; 10. Limiting groove; 11. Rubber hose; 12. Heating pipe; 13. Mounting post; 14. Valve; 15. Mounting bracket; 16. Mounting plate; 17. Storage post; 18. Movement groove; 19. Sliding post; 20. Movement block; 21. Second spring; 22. Gun head. Detailed Implementation

[0017] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0018] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0019] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0020] Please see Figures 1 to 5 As shown, an anti-drip glue gun includes a glue gun body 1. The glue gun body 1 is provided with a line connected to a heating pipe 12. The specific connection method is well known to those skilled in the art, so it will not be described in detail here. The glue dispensing mechanism is provided inside the glue gun body 1. The glue dispensing mechanism includes a trigger 3 provided on one side of the glue gun body 1. One end of the trigger 3 is connected to a connecting rod 4. One end of the connecting rod 4 is connected to a first spring 5. The end of the first spring 5 is provided with a connecting post 6. The end of the connecting post 6 is connected to a connecting plate 7. The top of the connecting plate 7 is provided with a limiting plate 9. The top of the limiting plate 9 is provided with a sliding block 8. The sliding block 8 is used to place the glue stick 2. Pressing the trigger 3 causes the connecting rod 4 to move, thereby pulling the first spring 5 and simultaneously pulling the connecting plate 7 to slide the sliding block 8, thus moving the glue stick 2 towards the gun head 22. After releasing the trigger 3, the first spring 5 returns to its original shape, restoring the trigger 3 to its original position. Heating pipe 12, with a rubber tube 11 at the other end. A limiting groove 10 is provided inside the glue gun body 1, and a limiting plate 9 is slidably connected within the limiting groove 10. A nozzle 22 is provided at one end of the heating pipe 12. An anti-drip mechanism is provided between the heating pipe 12 and the nozzle 22. The anti-drip mechanism includes a hollow mounting post 13 located inside the heating pipe 12. A valve 14 is provided at the end of the mounting post 13 facing the nozzle. An elastic component is provided between the valve 14 and the mounting post 13. The elastic component includes a mounting bracket 15 located at the other end of the mounting post 13. The center of the mounting bracket 15... An installation plate 16 is provided at the installation plate 16, and a receiving column 17 is provided on the side of the installation plate 16 facing the valve 14. The receiving column 17 is hollow and has a moving groove 18 inside. A sliding column 19 is provided inside the receiving column 17, and a moving block 20 is provided on the outside of the sliding column 19. The moving block 20 is slidably connected in the moving groove 18. The purpose of providing the moving block 20 and the moving groove 18 here is to prevent the sliding column 19 from being pushed out of the receiving column 17. A second spring 21 is provided at the end of the sliding column 19. When the second spring 21 is in its natural state, it seals the valve 14 inside the installation column 13. The end of the second spring 21 is connected inside the receiving column 17. The glue dispensing mechanism pushes the heated glue into the mounting post 13. As the force of the glue increases, the glue opens the valve 14, which in turn stretches the elastic component, stops the glue dispensing, and the elastic component returns to pull the valve 14 back into the mounting post 13.

[0021] Working principle: Pressing the trigger 3 drives the connecting rod 4 to move, thereby pulling the first spring 5, and at the same time pulling the connecting plate 7 to drive the sliding block 8 to slide, thereby moving the glue stick 2 towards the gun head 22. After releasing the trigger 3, the first spring 5 returns to its original shape and returns the trigger 3 to its original position. After the glue stick 2 enters the heating pipe 12, it becomes molten after being heated. The dispensing mechanism pushes the molten adhesive into the mounting post 13. As the force of the adhesive increases, it pushes the valve 14, which in turn causes the sliding block 19 to slide within the mounting post 13. This causes the moving block 20 to slide within the moving groove 18, stretching the second spring 21. Consequently, the valve 14 no longer seals the mounting post 13, and the adhesive is dispensed through the nozzle 22. After releasing the trigger 3, the second spring 21 returns to its original shape, pulling the valve 14 back into the mounting post 13, thus sealing the mounting post 13 and preventing adhesive leakage.

[0022] It should be noted that, in this document, relational terms such as "one" and "two" are used merely 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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0023] 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 gun with anti-drip function, comprising a glue gun body (1), characterized in that: The glue dispensing mechanism is located inside the body of the glue gun (1); A heating pipe (12) is installed inside the body (1) of the electric glue gun. A gun head (22) is provided at one end of the heating pipe (12). An anti-drip mechanism is provided between the heating pipe (12) and the gun head (22). The anti-drip mechanism includes a mounting column (13) installed inside the heating pipe (12). The mounting column (13) is hollow. A valve (14) is provided at the end of the mounting column (13) facing the gun mouth. An elastic component is provided between the valve (14) and the mounting column (13). The glue dispensing mechanism pushes the heated glue into the mounting column (13). The glue opens the valve (14), stretches the elastic component, stops the glue dispensing, and the elastic component returns to pull the valve (14) back into the mounting column (13).

2. The electric glue gun with anti-drip function according to claim 1, characterized in that: The glue-applying mechanism includes a trigger (3) located on one side of the glue gun body (1), a connecting rod (4) connected to one end of the trigger (3), a first spring (5) connected to one end of the connecting rod (4), and a connecting post (6) provided at the end of the first spring (5).

3. The electric glue gun with anti-drip function according to claim 2, characterized in that: The connecting column (6) is connected to a connecting plate (7) at its end. A limiting plate (9) is provided on the top of the connecting plate (7). A sliding block (8) is provided on the top of the limiting plate (9). The sliding block (8) is used to place the glue rod (2).

4. The electric glue gun with anti-drip function according to claim 3, characterized in that: A rubber tube (11) is provided at the other end of the heating pipe (12), and a limiting groove (10) is provided inside the body of the electric glue gun (1). The limiting plate (9) is slidably connected in the limiting groove (10).

5. An electric glue gun with anti-drip properties according to claim 1, characterized in that: The elastic component includes a mounting bracket (15) disposed at the other end of the mounting column (13), a mounting plate (16) disposed at the center of the mounting bracket (15), and a receiving column (17) disposed on the side of the mounting plate (16) facing the valve (14).

6. The electric glue gun with anti-drip function according to claim 5, characterized in that: The storage column (17) is hollow and has a movement groove (18) inside. A sliding column (19) is provided inside the storage column (17), and a movement block (20) is provided on the outside of the sliding column (19). The movement block (20) is slidably connected in the movement groove (18). A second spring (21) is provided at the end of the sliding column (19), and the end of the second spring (21) is connected inside the storage column (17).

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