A packing tube for jelly-like instant adhesive
By nesting an elastic tube inside an aluminum tube and using a combination of ring-shaped and strip-shaped segments, the problem of extrusion control of gel-like instant adhesive was solved, achieving precise extrusion and zero waste of gel-like instant adhesive.
Patent Information
- Application Number
- CN202522095531.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-06-19
- Estimated Expiration
- 2035-09-29
AI Technical Summary
In the existing technology, PE plastic bottles cannot be used with high-viscosity gel-like instant adhesives, while aluminum tubes have the problem of difficulty in controlling the extruded material and easy waste.
Design a material comprising an aluminum tube body and an elastic tube nested within its inner cavity. The elastic tube consists of an annular segment and a strip segment. The annular segment is located near the nozzle of the aluminum tube body, and the strip segment extends along the inner cavity of the aluminum tube to the tail end. It is made of PE or PP material, which has chemical inertness and excellent elasticity. Flow control is achieved through the elastic recovery performance of the annular segment, and the strip segment can be flattened to push the inner material.
It achieves precise extrusion control of gel-like instant adhesives, avoiding material residue and waste, and meeting the application requirements of high-viscosity adhesives.
Smart Images
Figure CN224376408U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging container technology, specifically to a packaging tube suitable for gel-like instant adhesives. Background Technology
[0002] Gel-like (paste-like) instant glue is a product obtained by thickening ordinary instant glue (such as 502 glue). Its viscosity needs to reach about 50,000 cps or higher. Because of its extremely high viscosity, it does not have self-flowing properties and requires external force to press it to achieve the extrusion operation.
[0003] Currently, there are two main types of packaging materials suitable for instant adhesives: PE plastic bottles and aluminum tubes. However, neither can meet the requirements for using gel-like instant adhesives. PE plastic bottles are only suitable for liquid instant adhesives with low viscosity and good flowability. Since gel-like instant adhesives do not have independent flowability and cannot be extruded by their own weight or slight extrusion, PE plastic bottles cannot be effectively adapted to them. While traditional aluminum tubes can theoretically accommodate highly viscous substances, they have significant drawbacks. Because aluminum tubes do not have a spring-like characteristic after being pressed, the pressure cannot be released when the material is extruded, easily leading to excessive material leakage, making it difficult to control the amount used and resulting in material waste. Utility Model Content
[0004] The purpose of this invention is to provide a packaging tube suitable for gel-like instant adhesives to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A packaging tube suitable for gel-like instant adhesive includes an aluminum tube body and an elastic tube nested within the inner cavity of the aluminum tube body. The outer wall of the elastic tube is tightly fitted to the inner wall of the aluminum tube body, and the elastic tube is composed of an annular segment and multiple strip segments. One end of each strip segment is simultaneously connected to one side of the annular segment, and the annular segment is located in the inner cavity of the aluminum tube body near the nozzle. The end of each strip segment away from the annular segment extends along the inner cavity of the aluminum tube body to a position near the tail end of the aluminum tube body.
[0007] Preferably, the plurality of strip-shaped segments are distributed along the circumferential direction of the ring-shaped segment, and at least two strip-shaped segments are provided.
[0008] Preferably, three strip-shaped segments are provided, and the three strip-shaped segments are equidistantly distributed along the circumferential direction of the annular segment, and all three strip-shaped segments are attached to the inner wall of the aluminum tube body.
[0009] Preferably, the surface of the annular segment is provided with multiple openings, the multiple openings are grouped into groups of at least two, and the multiple groups of openings are distributed along the outer circumference of the annular segment.
[0010] Preferably, the plurality of openings are arranged in groups of two, and four groups of openings are provided, with the four groups of openings being equidistantly distributed along the outer circumference of the annular segment.
[0011] Preferably, the elastic tube is made of PE or PP material.
[0012] Preferably, the axial length of the annular segment is one-third to two-fifths of the axial length of the aluminum tube body.
[0013] Preferably, the maximum length of the strip-shaped segment is two-thirds of the axial length of the aluminum tube body.
[0014] Preferably, the annular segment is integrally formed with multiple strip segments.
[0015] Preferably, a cap is detachably connected to the nozzle of the aluminum tube body.
[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0017] This invention provides a packaging tube suitable for gel-like instant adhesives. During application, by pressing the aluminum tube portion containing the plastic elastic tube within the inner cavity of the aluminum tube body, the elastic recovery property of the annular segment of the aluminum tube body allows for precise control of the extrusion flow rate of the gel-like instant adhesive within the aluminum tube body. Furthermore, after the adhesive in the aluminum tube portion containing the plastic elastic tube within the inner cavity of the aluminum tube body is exhausted, the tube body can be slowly flattened from the tail end upwards, allowing the gel-like instant adhesive to be extruded into the aluminum tube portion containing the plastic elastic tube within the inner cavity of the aluminum tube body, thus avoiding the problem of waste caused by adhesive residue.
[0018] This invention provides a packaging tube suitable for gel-like instant adhesives. By using PE or PP material for the elastic tube, the elastic tube has the characteristics of chemical inertness, excellent elasticity and easy injection molding and extrusion. It can avoid reaction with gel-like instant adhesives and meet the rebound requirements of ring-shaped segments and the flattening requirements of strip-shaped segments. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the cross-sectional structure of the aluminum tube body of this utility model;
[0020] Figure 2 This is a three-dimensional structural diagram of the elastic tube of this utility model;
[0021] Figure 3 This is a schematic diagram of another embodiment of the elastic tube of this utility model.
[0022] In the diagram: 1. Aluminum tube body; 2. Elastic tube; 21. Ring-shaped segment; 22. Strip-shaped segment; 3. Opening; 4. Nozzle; 5. Cap. Detailed Implementation
[0023] The present invention will be further described in detail below with reference to embodiments:
[0024] like Figures 1-2 As shown, this utility model provides a packaging tube suitable for gel-like instant adhesive, including an aluminum tube body 1 and an elastic tube 2 nested in the inner cavity of the aluminum tube body 1. The outer wall of the elastic tube 2 is tightly fitted to the inner cavity wall of the aluminum tube body 1, and the elastic tube 2 is composed of an annular segment 21 and multiple strip segments 22. The annular segment 21 and the multiple strip segments 22 are integrally formed. One end of the multiple strip segments 22 is connected to one side of the annular segment 21. The annular segment 21 is located in the inner cavity of the aluminum tube body 1 near the nozzle 4. The end of the strip segment 22 away from the annular segment 21 extends along the inner cavity of the aluminum tube body 1 to a position near the tail end of the aluminum tube body 1.
[0025] Among them, the elastic tube 2 is made of PE (high-density polyethylene) or PP (polypropylene); specifically, by using PE or PP material for the elastic tube 2, the elastic tube 2 has the characteristics of chemical inertness, excellent elasticity and easy injection molding and extrusion molding, which can avoid reaction with gel-like instant glue, and can meet the rebound requirements of the ring-shaped segment 21 and the flattening requirements of the strip-shaped segment 22.
[0026] Furthermore, the surface of the annular segment 21 is provided with multiple openings 3, with at least two openings 3 in a group, and the multiple groups of openings 3 are distributed along the outer circumference of the annular segment 21. The axial length of the annular segment 21 is one-third to two-fifths of the axial length of the aluminum tube body 1.
[0027] Specifically, the design of multiple openings 3 ensures that the force on the annular segment 21 is uniform when pressed, thereby improving the consistency of the elastic recovery of the annular segment 21, ensuring that the pressure can be released stably after the annular segment 21 is pressed, and accurately controlling the extrusion amount of the gel-like instant adhesive.
[0028] Furthermore, multiple strip-shaped segments 22 are distributed along the circumferential direction of the ring-shaped segment 21, and at least two strip-shaped segments 22 are provided.
[0029] Specifically, the strip-shaped segment 22 is used to position the annular segment 21 within the inner cavity of the aluminum tube body 1; and the strip-shaped segment 22 can be flattened. Its design is based on the characteristics of paste or gel-like internal materials that have no independent flow and require external force to be squeezed out. This solution designs the plastic elastic tube 2 as a combination structure of annular segment 21 and strip-shaped segment 22. It is precisely through the flattenable characteristic of the strip-shaped segment 22 that the aluminum tube body 1 in the corresponding area of the strip-shaped segment 22 is simultaneously flattened, so as to push the internal material in the lower part of the inner cavity of the aluminum tube body 1.
[0030] Furthermore, the maximum length of the strip-shaped segment 22 is two-thirds of the axial length of the aluminum tube body 1. Because the outer wall of the plastic elastic tube 2 is tightly fitted to the inner wall of the aluminum tube body 1, the frictional force of their interaction can also help prevent the plastic elastic tube 2 from shifting within the aluminum tube body 1. This dimensional design ensures that the strip-shaped segment 22 can cover the lower area of the aluminum tube body 1. Thus, when the pressing ring-shaped segment 21 fails to extrude the inner material, by flattening the strip-shaped segment 22 and the corresponding area of the aluminum tube body 1, the remaining gel-like instant adhesive at the bottom can be fully pushed, allowing the gel-like instant adhesive to be squeezed into the aluminum tube part of the aluminum tube body 1 where the plastic elastic tube 2 is nested (i.e., the position of the ring-shaped segment 21), thus avoiding waste of the inner material.
[0031] Furthermore, a cap 5 is detachably connected to the nozzle 4 of the aluminum tube body 1. Example 1
[0032] Combination Figure 1 and Figure 2 As shown, the elastic tube 2 is composed of a ring-shaped segment 21 and multiple strip-shaped segments 22. The ring-shaped segment 21 and the multiple strip-shaped segments 22 are integrally formed. There are three strip-shaped segments 22. The three strip-shaped segments 22 are equidistantly distributed along the circumference of the ring-shaped segment 21, and the three strip-shaped segments 22 are all tightly attached to the inner wall of the aluminum tube body 1.
[0033] The annular segment 21 has multiple openings 3 through its surface. The multiple openings 3 are arranged in groups of two, and there are four groups of multiple openings 3. The four groups of openings 3 are equidistantly distributed along the outer circumference of the annular segment 21. The elastic tube 2 is made of PE (high-density polyethylene), and the outer diameter of the plastic elastic tube 2 is close to the inner diameter of the aluminum tube body 1 to form a tight connection. The axial length of the annular segment 21 is one-third of the axial length of the aluminum tube body 1, and the length of the strip segment 22 is two-thirds of the axial length of the aluminum tube body 1.
[0034] The three strip-shaped segments 22 are all attached to the inner wall of the aluminum tube body 1 to improve the positioning stability of the ring-shaped segment 21 and ensure that the aluminum tube body 1 in the corresponding area can be uniformly deformed when the strip-shaped segment 22 is flattened. The four sets of openings 3 are equidistantly distributed along the outer circumference of the ring-shaped segment 21 to ensure that the ring-shaped segment 21 forms a "three-ring and four-longitudinal" elastic structure, which promotes uniform force on the ring-shaped segment 21 when it is pressed, improves its elastic recovery consistency, and thus stabilizes the extrusion flow of the paste or gel-like inner material. The elastic tube 2 is made of PE material, which makes the elastic tube 2 chemically inert to avoid reaction with the inner material, and has both elasticity and easy injection molding characteristics, which can meet the rebound requirements of the ring-shaped segment 21 and the flattening function requirements of the strip-shaped segment 22. Example 2
[0035] The elastic tube 2 is composed of a ring-shaped segment 21 and multiple strip-shaped segments 22. The ring-shaped segment 21 and the multiple strip-shaped segments 22 are integrally formed. There are two strip-shaped segments 22. The two strip-shaped segments 22 are equidistantly distributed along the circumference of the ring-shaped segment 21, and both strip-shaped segments 22 are attached to the inner wall of the aluminum tube body 1.
[0036] The annular segment 21 has multiple openings 3 through its surface. The multiple openings 3 are arranged in groups of three, and there are three groups of openings 3. The three groups of openings 3 are equidistantly distributed along the outer circumference of the annular segment 21. The elastic tube 2 is made of PP (polypropylene), and the outer diameter of the plastic elastic tube 2 is close to the inner diameter of the aluminum tube body 1 to form a tight connection. The axial length of the annular segment 21 is two-fifths of the axial length of the aluminum tube body 1, and the length of the strip segment 22 is three-fifths of the axial length of the aluminum tube body 1.
[0037] By having two strip-shaped segments 22 adhere to the inner wall of the aluminum tube body 1, stable positioning of the annular segment 21 is achieved. This ensures that when the strip-shaped segment 22 is flattened, it can simultaneously deform the corresponding area of the aluminum tube body 1, thereby pushing the paste or gel-like material in the lower part of the inner cavity of the aluminum tube body 1. The gel-like material is then instantly extruded into the aluminum tube part of the inner cavity of the aluminum tube body 1 where the plastic elastic tube 2 is nested (i.e., the position of the annular segment 21). Furthermore, the three sets of openings 3 are equidistantly distributed along the outer circumference of the annular segment 21, ensuring that the annular segment 21 forms a "three-ring, three-longitudinal" elastic structure. This promotes balanced force distribution when the annular segment 21 is pressed, improving the stability of its elastic recovery performance, and thus achieving precise control of the extrusion flow rate of the paste or gel-like material. The elastic tube 2 is made of PP material, which makes the plastic elastic tube 2 chemically inert to avoid reaction with the material. It also has suitable elasticity and injection molding characteristics, which can meet the rebound function of the annular segment 21 and the flattening requirements of the strip-shaped segment 22. Example 3
[0038] Combination Figure 3As shown, the elastic tube 2 is composed of a ring-shaped segment 21 and multiple strip-shaped segments 22. The ring-shaped segment 21 and the multiple strip-shaped segments 22 are integrally formed. There are three strip-shaped segments 22. The three strip-shaped segments 22 are equidistantly distributed along the circumference of the ring-shaped segment 21, and the three strip-shaped segments 22 are all tightly attached to the inner wall of the aluminum tube body 1.
[0039] Among them, the elastic tube 2 is made of PP (polypropylene) material. The outer diameter of the plastic elastic tube 2 is close to the inner diameter of the aluminum tube body 1 to form a tight connection. The axial length of the annular segment 21 is one-third of the axial length of the aluminum tube body 1, and the length of the strip segment 22 is two-thirds of the axial length of the aluminum tube body 1.
[0040] The three strip-shaped segments 22 are all attached to the inner wall of the aluminum tube body 1 to achieve stable positioning of the annular segment 21 and ensure that when the strip-shaped segment 22 is flattened, it can simultaneously drive the corresponding area of the aluminum tube body 1 to deform, thereby pushing the paste or gel-like material in the lower part of the inner cavity of the aluminum tube body 1. Moreover, there are no through holes 3 in the outer circumference of the annular segment 21, so the force on the annular segment 21 is more balanced when pressed, which can improve the stability of its elastic recovery performance and thus achieve precise control of the extrusion flow of the paste or gel-like material. The elastic tube 2 is made of PP material, which makes the plastic elastic tube 2 chemically inert to avoid reaction with the material, and has suitable elasticity and injection molding characteristics, which can meet the rebound function of the annular segment 21 and the use requirements of the strip-shaped segment 22 being flattened. Example 4
[0041] The elastic tube 2 is composed of a ring-shaped segment 21 and multiple strip-shaped segments 22. The ring-shaped segment 21 and the multiple strip-shaped segments 22 are integrally formed. There are two strip-shaped segments 22. The two strip-shaped segments 22 are equidistantly distributed along the circumference of the ring-shaped segment 21, and both strip-shaped segments 22 are attached to the inner wall of the aluminum tube body 1.
[0042] Among them, the elastic tube 2 is made of PP (polypropylene) material. The outer diameter of the plastic elastic tube 2 is close to the inner diameter of the aluminum tube body 1 to form a tight connection. The axial length of the annular segment 21 is two-fifths of the axial length of the aluminum tube body 1, and the length of the strip segment 22 is three-fifths of the axial length of the aluminum tube body 1.
[0043] The two strip-shaped segments 22 are both attached to the inner wall of the aluminum tube body 1 to achieve stable positioning of the annular segment 21 and ensure that when the strip-shaped segment 22 is flattened, it can simultaneously drive the corresponding area of the aluminum tube body 1 to deform, thereby pushing the paste or gel-like material in the lower part of the inner cavity of the aluminum tube body 1. Moreover, there are no through holes 3 in the outer circumference of the annular segment 21, so the force on the annular segment 21 is more balanced when pressed, which can improve the stability of its elastic recovery performance and thus achieve precise control of the extrusion flow of the paste or gel-like material. The elastic tube 2 is made of PP material, which makes the plastic elastic tube 2 chemically inert to avoid reaction with the material, and has suitable elasticity and injection molding characteristics, which can meet the rebound function of the annular segment 21 and the use requirements of the strip-shaped segment 22 being flattened.
[0044] The working principle of this type of packaging tube suitable for gel-like instant adhesives will be explained in detail below.
[0045] like Figures 1-2 As shown, during initial use, the user only needs to press the ring-shaped segment 21 to control the deformation of the corresponding area of the aluminum tube body 1 through the elastic recovery performance of the ring-shaped segment 21, thereby achieving precise control of the extrusion flow rate of the gel-like instant adhesive inside the aluminum tube body 1. After long-term use, when pressing the ring-shaped segment 21 can no longer extrude the material, the user can press the position of the strip-shaped segment 22 to flatten the strip-shaped segment 22 and simultaneously deform the corresponding area of the aluminum tube body 1, so as to push the gel-like instant adhesive in the lower part of the inner cavity of the aluminum tube body 1 towards the ring-shaped segment 21, ensuring that the gel-like instant adhesive can be extruded through the nozzle 4 in the future, so as to avoid the problem of waste caused by residue of instant adhesive.
[0046] In summary, this invention solves the defects of traditional aluminum tubes that do not spring back after being pressed and that the inner material is easily over-extended. It also overcomes the problem that PE plastic bottles cannot adapt to gel-like instant adhesives that lack self-flowability, ultimately achieving the effect that the inner material can be completely extruded without any residue or waste.
[0047] It is worth noting that the process of inserting the plastic elastic tube 2 into the inner cavity of the aluminum tube body 1 in this invention is as follows: Initially, the tail end of the aluminum tube body 1 is in an open state. At this time, the plastic elastic tube 2 needs to be inserted from the tail end of the aluminum tube body 1. Thus, after the tail end of the aluminum tube body 1 is rolled and sealed later, the plastic elastic tube 2 can be placed in the inner cavity of the aluminum tube body 1. It is also worth noting that the technique of injecting gel-like instant adhesive into the inner cavity of the aluminum tube body 1 is a known and publicly disclosed technique, which is well known and used by those skilled in the art, and will not be elaborated upon further in this article.
[0048] It should be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.
[0049] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A packaging tube suitable for gel-like instant adhesives, characterized in that: The device includes an aluminum tube body and an elastic tube nested within the inner cavity of the aluminum tube body. The outer wall of the elastic tube is tightly fitted to the inner wall of the aluminum tube body. The elastic tube is composed of an annular segment and multiple strip segments. One end of each strip segment is simultaneously connected to one side of the annular segment. The annular segment is located in the inner cavity of the aluminum tube body near the nozzle. The end of each strip segment away from the annular segment extends along the inner cavity of the aluminum tube body to a position near the tail end of the aluminum tube body.
2. The packaging tube for gel-like instant adhesives according to claim 1, characterized in that: Multiple strip-shaped segments are distributed along the circumferential direction of the ring-shaped segment, and at least two strip-shaped segments are provided.
3. A packaging tube suitable for gel-like instant adhesives according to claim 2, characterized in that: The strip-shaped segment is provided in three parts, and the three strip-shaped segments are equidistantly distributed along the circumference of the ring-shaped segment, and the three strip-shaped segments are all attached to the inner wall of the aluminum tube body.
4. A packaging tube suitable for gel-like instant adhesives according to claim 1, characterized in that: The surface of the annular segment is provided with multiple openings, and the multiple openings are arranged in groups of at least two, and the multiple groups of openings are distributed along the outer circumference of the annular segment.
5. A packaging tube suitable for gel-like instant adhesives according to claim 4, characterized in that: The multiple ports are arranged in groups of two, and there are four groups of multiple ports, with the four groups of ports being equidistantly distributed along the outer circumference of the annular segment.
6. A packaging tube suitable for gel-like instant adhesives according to claim 1, characterized in that: The elastic tube is made of PE or PP material.
7. A packaging tube suitable for gel-like instant adhesives according to claim 1, characterized in that: The axial length of the annular segment is one-third to two-fifths of the axial length of the aluminum tube body.
8. A packaging tube suitable for gel-like instant adhesives according to claim 1, characterized in that: The maximum length of the strip-shaped segment is two-thirds of the axial length of the aluminum tube body.
9. A packaging tube suitable for gel-like instant adhesives according to claim 1, characterized in that: The ring-shaped segment is integrally formed with multiple strip-shaped segments.
10. A packaging tube suitable for gel-like instant adhesives according to claim 1, characterized in that: A cap is detachably connected to the nozzle of the aluminum tube body.