Double-separation glue feeding mechanism
By designing a limiting groove and a spring structure, the problem of loosening between the dispensing head and the threaded tube in the dual glue dispensing mechanism is solved, achieving a stable connection, preventing glue leakage, and improving service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-03-10
AI Technical Summary
In the existing technology, the glue storage tube and the glue dispensing head of the dual glue dispensing mechanism are connected by a threaded connection, which is prone to loosening and leakage after long-term use.
The system employs a limiting groove and spring structure. Through the locking mechanism of the limiting block and the limiting groove, and the reset mechanism of the spring, the connection between the dispensing head and the threaded tube is made secure and stable, ensuring a tight fit between the threaded sleeve and the dispensing head.
It effectively prevents the dispensing head from loosening from the threaded tube, avoids glue leakage, and improves the stability and service life of the connection.
Smart Images

Figure CN223980728U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of two-part adhesives, specifically a two-part adhesive feeding mechanism. Background Technology
[0002] Adhesive is an intermediate that connects two materials. It usually appears in the form of an aqueous solution and belongs to the category of fine chemicals.
[0003] In the prior art, in order to obtain better performance and extend service life, it is often necessary to mix two kinds of glue during the production of glue to achieve a complementary chemical reaction effect. The two kinds of glue are poured into their respective glue storage tubes, and the cylinder squeezes the two kinds of glue through the glue dispensing head into the glue dispensing machine for mixing, thereby achieving the purpose of dual glue dispensing.
[0004] However, the existing glue storage tube and glue dispensing head are fixed by threaded connection. Due to the vibration generated by mechanical movement, the threaded connection will loosen after long-term use, causing the connection between the glue dispensing head and the glue storage tube to become unstable. When the cylinder squeezes the glue, it is easy to leak from the connection between the two. Utility Model Content
[0005] The purpose of this invention is to provide a dual-stage glue feeding mechanism to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a dual-stage glue feeding mechanism, the dual-stage glue feeding mechanism comprising:
[0007] The outer casing has a first and a second glue storage tube fixed inside it. The bottom of the first and second glue storage tubes is fixed with a threaded tube, and a limit groove is formed on the outer surface of the threaded tube.
[0008] The dispensing head has a connecting sleeve fixed at its upper end, a limit block fixed on the inner wall of the connecting sleeve, a retaining ring fixed on the upper surface of the connecting sleeve, and a threaded sleeve movably fitted on the outer surface of the retaining ring.
[0009] Preferably, the limiting block and the limiting groove are opposite to and locked together, and the two are movably connected. The threaded tube connects the first glue storage tube and the second glue storage tube, and the threaded tube corresponds to the glue dispensing head.
[0010] Preferably, a connecting sleeve is fixed on the upper surface of the connecting sleeve, a retaining ring is fixed on the upper surface of the connecting sleeve, and a positioning groove is formed on the inner wall of the retaining ring.
[0011] Preferably, the threaded sleeve has a storage groove inside, the storage groove has an opening near the end, and a positioning block is fixed on the inner wall of the storage groove near the opening.
[0012] Preferably, one end of the positioning block is fixedly connected to the inner wall of the slot, the positioning block corresponds to and is engaged with the positioning slot, and is movably connected, and the length of the positioning block is the same as the depth of the positioning slot.
[0013] Preferably, the depth of the storage groove is greater than twice the length of the positioning block, and a spring is movably provided on the inner wall of the storage groove, with the spring located above the retaining ring.
[0014] Preferably, the threaded sleeve corresponds to and is movably engaged with the threaded tube, the retaining ring has the same diameter as the receiving groove, the connecting collar has the same diameter as the groove opening, the retaining ring has a larger diameter than the connecting collar, and the retaining ring is movably engaged with the inner wall of the receiving groove.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] Pressing the dispensing head drives the retaining ring to move upward in the receiving groove, until the retaining ring is no longer locked between the positioning block and the positioning groove. Then, the threaded sleeve is locked onto the threaded tube, and the limiting block is locked into the limiting groove. Rotating the threaded sleeve on the threaded tube will cause the threaded sleeve to move upward, which in turn drives the dispensing head to move upward. Once the threaded sleeve and the threaded tube are fully threaded and fixed, stop pressing the dispensing head. The spring will immediately return to its original position and extend. As the spring returns to its original position, it will push the retaining ring downward in the receiving groove, causing the positioning block and the positioning groove to lock again. At this time, the threaded sleeve and the dispensing head are repositioned. Since the dispensing head cannot rotate due to the restriction of the limiting block and the limiting groove, the threaded sleeve also cannot rotate, thus preventing the connection between the dispensing head and the threaded tube from loosening. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is an exploded view of the overall structure of this utility model;
[0019] Figure 3 This is an exploded view of the structure of the glue dispensing head assembly of this utility model;
[0020] Figure 4 This is a cross-sectional schematic diagram of the threaded sleeve structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the connecting sleeve structure of this utility model;
[0022] Figure 6 This is a cross-sectional schematic diagram of the connecting sleeve structure of this utility model.
[0023] In the diagram: 1. Outer shell; 2. Threaded sleeve; 3. Connecting sleeve; 4. Dispensing head; 5. First glue reservoir tube; 6. Second glue reservoir tube; 7. Threaded tube; 8. Limiting groove; 9. Spring; 10. Positioning block; 11. Groove opening;
[0024] 12. Storage slot; 13. Retaining ring; 14. Positioning slot; 15. Connecting collar; 16. Limiting block. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0026] Example 1, please refer to Figures 1-6 This utility model provides a technical solution: a dual glue supply mechanism, in which a first glue storage tube 5 and a second glue storage tube 6 are fixed inside the outer shell 1, and a threaded tube 7 is fixed at the bottom of the first glue storage tube 5 and the second glue storage tube 6. A partition plate is provided in the threaded tube 7 to separate the two sets of glue storage tube openings, and a limit groove 8 is provided on the outer surface of the threaded tube 7.
[0027] The upper end of the dispensing head 4 is fixed with a connecting sleeve 3. The inner wall of the connecting sleeve 3 is fixed with a limit block 16. The upper surface of the connecting sleeve 3 is fixed with a retaining ring 13. The outer surface of the retaining ring 13 is movably fitted with a threaded sleeve 2. Since the dispensing head 4 is restricted from rotating by the limit block 16 and the limit groove 8, the threaded sleeve 2 cannot rotate either, thus achieving the anti-loosening of the connection between the dispensing head 4 and the threaded tube 7.
[0028] Based on Embodiment 1, in order to prevent the dispensing head 4 from loosening when connected to the threaded tube 7, the limiting block 16 and the limiting groove 8 are positioned opposite each other and locked together, and the two are movably connected. Since the dispensing head 4 cannot rotate due to the restriction of the limiting block 16 and the limiting groove 8, the threaded sleeve 2 also cannot rotate, thereby preventing the dispensing head 4 from loosening when connected to the threaded tube 7. The threaded tube 7 is connected to the first glue storage tube 5 and the second glue storage tube 6, and the threaded tube 7 corresponds to the dispensing head 4.
[0029] A connecting sleeve 15 is fixed on the upper surface of the connecting sleeve 3, and a retaining ring 13 is fixed on the upper surface of the connecting sleeve 15. A positioning groove 14 is provided on the inner wall of the retaining ring 13.
[0030] The threaded sleeve 2 has a storage groove 12 inside, and a slot 11 is opened near the end of the storage groove 12. A positioning block 10 is fixed on the inner wall of the storage groove 12 near the slot 11.
[0031] One end of the positioning block 10 is fixedly connected to the inner wall of the groove 11. The positioning block 10 corresponds to and is engaged with the positioning groove 14, forming a movable connection. When the positioning block 10 is engaged with the positioning groove 14, there is a limit between the threaded sleeve 2 and the dispensing head 4, so that the threaded sleeve 2 and the dispensing head 4 cannot rotate relative to each other. The length of the positioning block 10 is the same as the depth of the positioning groove 14.
[0032] The depth of the storage groove 12 is greater than twice the length of the positioning block 10, so the retaining ring 13 has enough storage space to prevent the positioning block 10 from being stuck with the positioning groove 14. A spring 9 is movably installed on the inner wall of the storage groove 12. The spring 9 is located above the retaining ring 13. After the external force is lost, the spring 9 will immediately reset and extend. At the same time as the spring 9 resets, it will push the retaining ring 13 to move downward in the storage groove 12, so that the positioning block 10 and the positioning groove 14 are re-engaged.
[0033] The threaded sleeve 2 corresponds to and is movably engaged with the threaded tube 7. The retaining ring 13 has the same diameter as the receiving groove 12. The connecting collar 15 has the same diameter as the groove 11. The retaining ring 13 has a larger diameter than the connecting collar 15. The retaining ring 13 is movably engaged with the inner wall of the receiving groove 12, so that the retaining ring 13 will not separate from the receiving groove 12, and the threaded sleeve 2 will not separate from the dispensing head 4.
[0034] In actual use, when installing the dispensing head 4 onto the threaded tube 7, hold the threaded sleeve 2 with one hand and press the dispensing head 4 with the other. Pressing the dispensing head 4 will drive the retaining ring 13 to move upward in the receiving groove 12 and compress the spring 9. When the retaining ring 13 moves to the point where the positioning block 10 and the positioning groove 14 are no longer locked, the limit between the dispensing head 4 and the threaded sleeve 2 disappears. At this time, the threaded sleeve 2 and the dispensing head 4 can be rotated relative to each other. Then, the threaded sleeve 2 is locked onto the threaded tube 7, and the limiting block 16 is locked into the limiting groove 8. Due to the threaded fit, rotating the threaded sleeve 2 on the threaded tube 7 will cause the threaded sleeve 2 to rotate along the threaded groove 8. When the threaded tube 7 moves upward along its axis, the movement of the threaded sleeve 2 will cause the dispensing head 4 to move upward. After the threaded sleeve 2 and the threaded tube 7 are fully threaded and fixed, the dispensing head 4 is stopped. After the external force is lost, the spring 9 will immediately return to its original position and extend. At the same time as the spring 9 returns to its original position, it will push the retaining ring 13 to move downward in the receiving groove 12, so that the positioning block 10 and the positioning groove 14 are re-locked. At this time, the threaded sleeve 2 and the dispensing head 4 are re-limited. Since the dispensing head 4 cannot rotate due to the restriction of the limiting block 16 and the limiting groove 8, the threaded sleeve 2 cannot rotate either, thus achieving the anti-loosening of the connection between the dispensing head 4 and the threaded tube 7.
[0035] 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 dual-part adhesive water supply mechanism, characterized by: The double glue supply mechanism comprises: The shell (1) is internally fixed with a first glue storage pipe (5) and a second glue storage pipe (6), the bottom of the first glue storage pipe (5) and the second glue storage pipe (6) is fixed with a threaded pipe (7), and the outer surface of the threaded pipe (7) is provided with a limiting groove (8); The glue distribution head (4) is fixed with a connecting sleeve (3) at the upper end, the inner wall of the connecting sleeve (3) is fixed with a limiting block (16), the upper surface of the connecting sleeve (3) is fixed with a blocking ring (13), and the outer surface of the blocking ring (13) is movably sleeved with a threaded sleeve (2).
2. The dual dispensing glue feeder mechanism of claim 1, wherein: The limiting block (16) is opposite to and clamped with the limiting groove (8), and the two are movably connected, the threaded pipe (7) communicates the first glue storage pipe (5) and the second glue storage pipe (6), and the threaded pipe (7) corresponds to the glue distribution head (4).
3. A dual-part glue feeder mechanism according to claim 2, wherein: The connecting sleeve (3) is fixed with a connecting sleeve ring (15) on the upper surface, the upper surface of the connecting sleeve ring (15) is fixed with a blocking ring (13), and the inner wall of the blocking ring (13) is provided with a positioning groove (14).
4. A dual-part glue feed mechanism according to claim 3, wherein: The threaded sleeve (2) is internally provided with a receiving groove (12), the receiving groove (12) is provided with a slot (11) at the port, and the inner wall of the receiving groove (12) is fixed with a positioning block (10) at the slot (11).
5. A dual-part glue feed mechanism according to claim 4, wherein: One end of the positioning block (10) is fixedly connected with the inner wall of the slot (11), the positioning block (10) corresponds to and is clamped with the positioning groove (14) and is movably connected, and the length of the positioning block (10) is the same as the depth of the positioning groove (14).
6. A dual-part glue feed mechanism according to claim 5, wherein: The depth of the receiving groove (12) is greater than twice the length of the positioning block (10), the inner wall of the receiving groove (12) is movably provided with a spring (9), and the spring (9) is located above the blocking ring (13).
7. A dual-part glue feeder mechanism according to claim 6, wherein: The threaded sleeve (2) corresponds to and is movably clamped with the threaded pipe (7), the diameter of the blocking ring (13) is the same as that of the receiving groove (12), the diameter of the connecting sleeve ring (15) is the same as that of the slot (11), the diameter of the blocking ring (13) is greater than that of the connecting sleeve ring (15), and the blocking ring (13) is movably clamped on the inner wall of the receiving groove (12).