A glue gun structure for silicone adhesive

By using a motor-driven gear transmission system and a support ring design, the problem of discontinuous glue dispensing in existing glue guns has been solved, enabling continuous dispensing and easy replacement of silicone adhesive, thus improving operational efficiency.

CN224443610UActive Publication Date: 2026-07-03ZHEJIANG RONGTAI TECHNOLOGY ENTERPRISE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG RONGTAI TECHNOLOGY ENTERPRISE CO LTD
Filing Date
2025-04-28
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing glue gun structure requires the movable rod to reset after extrusion before it can be extruded again, resulting in discontinuous glue dispensing, laborious operation, and difficulty in controlling the glue dispensing volume.

Method used

The motor-driven gear transmission system drives the threaded rod through the meshing mechanism to move the extrusion plate at a constant speed, thereby achieving continuous dispensing of tubular silicone adhesive. The glue cartridge can be easily replaced through the support ring and lever.

Benefits of technology

It achieves uniform and continuous dispensing of tubular silicone adhesive, improving operational convenience and dispensing effect, while also facilitating waste material replacement.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a glue gun structure for silicone adhesives, relating to the field of glue gun structures. It includes a glue gun body and a tubular silicone adhesive inserted into the glue gun body. A mounting cap is threaded onto the glue gun body. A lifting plate is slidably disposed within the tubular silicone adhesive. A drive tube is rotatably inserted into the mounting cap, and a pressing plate corresponding to the lifting plate is disposed below the mounting cap. A threaded rod fixed to the pressing plate is threaded into the drive tube. The mounting cap is equipped with a drive mechanism for rotating the drive tube. This utility model, through the rotation of the drive tube, drives the threaded rod, causing the pressing plate to move downwards at a uniform speed, pushing the lifting plate within the tubular silicone adhesive, thus ensuring uniform glue dispensing and improving the continuity and dispensing effect of the tubular silicone adhesive.
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Description

Technical Field

[0001] This utility model relates to the field of glue gun structures, specifically a glue gun structure for silicone adhesives. Background Technology

[0002] A glue gun is a common tool widely used in industrial production, construction decoration, and handicrafts. A manual glue gun mainly consists of a handle, trigger, and push rod. By manually pressing the trigger, the push rod moves forward, squeezing glue from the cartridge. It is simple to operate and suitable for small-scale operations.

[0003] Currently, existing glue gun structures mainly rely on a movable rod to dispense glue, which requires manual control. However, due to the limited extrusion stroke of the movable rod, it needs to be reset after extrusion before it can be extruded again, resulting in inconsistent glue dispensing, laborious operation, and difficulty in controlling the amount of glue dispensed. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a glue gun structure for silicone adhesives, so as to solve the technical problem that after extrusion, the movable rod needs to be reset before it can be extruded again, which leads to the inability to achieve continuous glue extrusion, more laborious operation, and difficulty in controlling the glue output.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a glue gun structure for silicone adhesive, comprising a glue gun body and a tubular silicone adhesive that fits and is inserted into the glue gun body. A mounting cap is threaded onto the glue gun body. A lifting plate is slidably disposed in the tubular silicone adhesive. A drive tube is rotatably inserted into the mounting cap. An extrusion plate corresponding to the lifting plate is disposed below the mounting cap. A threaded rod fixed to the extrusion plate is threaded into the drive tube. A drive mechanism for driving the drive tube to rotate is provided on the mounting cap.

[0006] The present invention is further configured such that handles are fixedly installed on both sides of the outer wall of the glue gun body, and a glue nozzle is installed at the bottom of the glue gun body.

[0007] The present invention is further configured such that a support ring is slidably inserted into the bottom end of the glue gun body, and a groove is provided on the side wall of the glue gun body.

[0008] The present invention is further configured such that the bottom end of the tubular silicone adhesive abuts against the support ring, and a lever protruding from the side wall of the slide groove is fixed on the support ring.

[0009] The present invention is further configured such that the driving mechanism includes a motor fixed to the bottom end of the mounting cover and an engagement mechanism disposed above the mounting cover.

[0010] The present invention is further configured such that the meshing mechanism includes a first gear fixedly mounted on the motor shaft and a second gear fixedly sleeved on the drive tube, wherein the first gear and the second gear are meshed together.

[0011] The present invention is further configured such that a positioning rod is fixedly inserted into the mounting cover at the top of the extrusion plate, a plurality of heat dissipation grooves are provided at the top of the mounting cover, and an extrusion rod is fixedly installed at the top of the threaded rod.

[0012] In summary, this utility model has the following beneficial effects: The utility model features a glue gun body that fits snugly onto the tubular silicone adhesive. During use, the motor drives the first and second gears to rotate, causing the drive tube to rotate and drive the threaded rod, which in turn moves the extrusion plate downwards at a uniform speed, pushing the lifting plate within the tubular silicone adhesive. This allows the tubular silicone adhesive to be dispensed at a uniform speed. A positioning rod slidably inserted into the mounting cover keeps the extrusion plate and threaded rod axially positioned, facilitating continuous and uniform dispensing of adhesive, thus improving the continuity and dispensing effect of the tubular silicone adhesive. Furthermore, by providing a sliding groove on the side wall of the glue gun body and embedding a support ring within the glue gun body to support the tubular silicone adhesive, after the tubular silicone adhesive is dispensed, the mounting cover can be unscrewed to disassemble the extrusion plate. After disassembly, the tubular silicone adhesive can be slid out of the glue gun body via a lever and the support ring, improving the convenience of replacing waste tubular silicone adhesive. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a cross-sectional view of the glue gun body of this utility model;

[0015] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0016] Figure 4 This is a cross-sectional view of the dispensing nozzle of this utility model.

[0017] In the diagram: 1. Glue gun body; 2. Glue nozzle; 3. Handle; 4. Threaded rod; 5. Extrusion rod; 6. Positioning rod; 7. Mounting cover; 8. Lifting plate; 9. Tubular silicone adhesive; 10. Extrusion plate; 11. Motor; 12. First gear; 13. Drive tube; 14. Heat dissipation groove; 15. Second gear; 16. Slide groove; 17. Support ring; 18. Lever. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] A glue gun structure for silicone adhesives, such as Figure 1-4 As shown, the device includes a glue gun body 1 and a tubular silicone adhesive 9 that fits into the glue gun body 1. A mounting cover 7 is threaded onto the glue gun body 1. A lifting plate 8 is slidably disposed in the tubular silicone adhesive 9. A drive tube 13 is rotatably inserted into the mounting cover 7. A pressing plate 10 corresponding to the lifting plate 8 is disposed below the mounting cover 7. A threaded rod 4 fixed to the pressing plate 10 is threaded into the drive tube 13. A drive mechanism for rotating the drive tube 13 is provided on the mounting cover 7.

[0020] Handles 3 are fixedly installed on both sides of the outer wall of the glue gun body 1, and a glue nozzle 2 is installed at the bottom of the glue gun body 1. A support ring 17 is slidably inserted into the bottom of the glue gun body 1, and a sliding groove 16 is opened on the side wall of the glue gun body 1. The bottom end of the tubular silicone adhesive 9 abuts against the support ring 17. A lever 18 protruding from the side wall of the sliding groove 16 is fixed on the support ring 17. After the tubular silicone adhesive 9 is squeezed out, the installation cover 7 is unscrewed to disassemble the extrusion plate 10. After disassembly, the tubular silicone adhesive 9 is slid out of the glue gun body 1 by pulling the lever 18 and the support ring 17. A button for controlling the motor 11 is provided on the handle 3, and a battery for powering the motor 11 is detachably installed in the handle 3. The battery and the button are prior art and are not shown in the figure.

[0021] Furthermore, the drive mechanism includes a motor 11 fixed to the bottom of the mounting cover 7 and a meshing mechanism disposed above the mounting cover 7. The meshing mechanism includes a first gear 12 fixedly mounted on the shaft of the motor 11 and a second gear 15 fixedly sleeved on the drive tube 13. The first gear 12 and the second gear 15 are meshed together. A positioning rod 6 is fixedly inserted into the mounting cover 7 at the top of the extrusion plate 10. Multiple heat dissipation grooves 14 are opened at the top of the mounting cover 7. An extrusion rod 5 is fixedly installed at the top of the threaded rod 4. When in use, the motor 11 is started to drive the first gear 12 and the second gear 15 to rotate. During the rotation of the drive tube 13, the threaded rod 4 is driven to move the extrusion plate 10 downward at a uniform speed, pushing the lifting plate 8 in the tubular silicone adhesive 9, so that the tubular silicone adhesive 9 is dispensing glue at a uniform speed. The positioning rod 6 slidably inserted into the mounting cover 7 keeps the extrusion plate 10 and the threaded rod 4 axially positioned, which facilitates uniform and continuous glue dispensing and improves the continuity and dispensing effect of the tubular silicone adhesive 9.

[0022] The working principle of this utility model is as follows: During use, a tubular silicone adhesive 9 is inserted into the glue gun body 1. The bottom of the tubular silicone adhesive 9 corresponds to the nozzle 2 on the glue gun body 1. The mounting cap 7 is threaded onto the glue gun body 1. The extrusion plate 10 at the bottom of the threaded rod 4 corresponds to the lifting plate 8 in the tubular silicone adhesive 9. The motor 11 is started, driving the first gear 12 and the second gear 15 to rotate. During this rotation, the drive tube 13 drives the threaded rod 4, causing the extrusion plate 10 to move downwards at a uniform speed, pushing the lifting plate 8 in the tubular silicone adhesive 9. The lowering plate 8 allows the tubular silicone adhesive 9 to be dispensed at a uniform speed. The positioning rod 6, which is slidably inserted into the mounting cover 7, keeps the extrusion plate 10 and the threaded rod 4 axially positioned, facilitating uniform and continuous dispensing of adhesive. This improves the continuity and dispensing effect of the tubular silicone adhesive 9. After the tubular silicone adhesive 9 is dispensed, the mounting cover 7 is unscrewed to disassemble the extrusion plate 10. After disassembly, the tubular silicone adhesive 9 is pulled out of the glue gun body 1 by the lever 18 and the support ring 17, which improves the convenience of replacing waste tubular silicone adhesive 9.

[0023] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A structure of a gun for silicone adhesive, comprising a gun body (1) and a tubular silicone adhesive (9) which is inserted into the gun body (1) in a kiss joint, characterized in that: The glue gun body (1) is threaded with a mounting cap (7), a lifting plate (8) is slidably disposed in the tubular silicone adhesive (9), a drive tube (13) is rotatably inserted in the mounting cap (7), and a pressing plate (10) corresponding to the lifting plate (8) is disposed below the mounting cap (7). A threaded rod (4) fixed to the pressing plate (10) is threadedly inserted in the drive tube (13), and a drive mechanism for driving the drive tube (13) to rotate is provided on the mounting cap (7).

2. The glue gun structure for silicone adhesives according to claim 1, characterized in that: Handles (3) are fixedly installed on both sides of the outer wall of the glue gun body (1), and a glue nozzle (2) is installed at the bottom of the glue gun body (1).

3. The structure of the glue gun for silicone adhesive according to claim 1, characterized in that: A support ring (17) is slidably inserted into the bottom end of the glue gun body (1), and a groove (16) is provided on the side wall of the glue gun body (1).

4. The structure of the glue gun for silicone adhesive according to claim 3, characterized in that: The bottom end of the tubular silicone adhesive (9) abuts against the support ring (17), and a lever (18) protruding from the side wall of the slide groove (16) is fixed on the support ring (17).

5. The structure of the glue gun for silicone adhesive according to claim 1, characterized in that: The drive mechanism includes a motor (11) fixed to the bottom of the mounting cover (7) and an engagement mechanism disposed above the mounting cover (7).

6. The structure of a glue gun for silicone adhesive according to claim 5, characterized in that: The meshing mechanism includes a first gear (12) fixedly mounted on the shaft of the motor (11) and a second gear (15) fixedly sleeved on the drive tube (13), wherein the first gear (12) and the second gear (15) are meshed together.

7. The glue gun structure for silicone adhesives according to claim 6, characterized in that: The top end of the extrusion plate (10) is fixed with a positioning rod (6) that is slidably inserted into the mounting cover (7). The top end of the mounting cover (7) is provided with multiple heat dissipation grooves (14). The top end of the threaded rod (4) is fixedly installed with an extrusion rod (5).