A type of heat-insulating hot melt adhesive tube

Abstract

This utility model relates to the field of hot melt adhesive hose technology and discloses an insulated hot melt adhesive hose, comprising, from the inside out, a Teflon inner liner, a stainless steel braided layer, a bottom layer, a heating layer, a fiber layer, an insulation layer, a corrugated pipe, and a nylon protective sleeve. The heating layer uses a steel-flower heating wire as the inner wire, which is wrapped with Teflon silicone. Because the heating layer wraps the steel-flower heating wire with Teflon silicone, it can prevent the steel-flower heating wire from being exposed in the working environment, eliminate the risk of electric shock from the steel-flower heating wire, and also increase the flexibility and safety of the entire heating layer. This increases the service life and stability in special environments, such as high-intensity operation of robotic arms. The stainless steel braided layer provides primary protection for the Teflon inner liner, forming mechanical protection to resist the effects of external pressure and mechanical friction. The bottom layer acts as a bridge for isolation protection and heat conduction.

Description

Technical Field

[0001] This utility model relates to the field of hot melt adhesive tube technology, specifically to a heat-insulating hot melt adhesive tube. Background Technology

[0002] Hot melt adhesive hoses, also known as adhesive delivery hoses, are used in hot melt adhesive machines to transport hot melt adhesive. They possess excellent flexibility and typically consist of an inner adhesive layer, a fiber braided or wound reinforcement layer, and an outer adhesive layer. The inner liner uses imported Teflon tubing, offering excellent flexibility, non-stick properties, and high-temperature resistance, significantly reducing carbonization. The heating element uses heating wire and high-temperature resistant yarn, evenly wound around the outer wall of the hose, providing good insulation, uniform heat conduction, and high-temperature resistance. However, existing hot melt adhesive hoses generally suffer from poor insulation, high heat loss, and insufficient safety protection, especially in high-intensity operating scenarios such as robotic arms, where the hose's stability and durability are insufficient. Therefore, there is an urgent need for a hot melt adhesive hose that combines excellent insulation performance, safety protection capabilities, and high mechanical strength. Utility Model Content

[0003] The purpose of this invention is to provide a heat-insulating hot melt adhesive tube to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a heat-insulating hot melt adhesive tube, comprising, from the inside out, a Teflon inner liner, a stainless steel braided layer, a base layer, a heating layer, a fiber layer, a heat-insulating layer, a corrugated tube, and a nylon protective sleeve; the heating layer uses a steel-flower heating wire as the inner wire, and the outside of the steel-flower heating wire is wrapped with Teflon silicone, and the steel-flower heating wire forms a closed structure through the Teflon silicone wrapping.

[0005] Furthermore, the insulated hot melt adhesive tube, which consists of a Teflon inner liner, a stainless steel braided layer, a base layer, a heating layer, a fiber layer, an insulation layer, a corrugated tube, and a nylon protective sleeve, has a connector assembly at one end and a threaded joint at the other end.

[0006] Furthermore, the outlet of the insulated hot melt adhesive tube, which consists of a Teflon inner liner, a stainless steel braided layer, a base layer, a heating layer, a fiber layer, an insulation layer, a corrugated tube, and a nylon protective sleeve, is equipped with double protection, and a cable connecting the insulated hot melt adhesive tube and the Harding aviation plug runs through the outlet.

[0007] Furthermore, the stainless steel braided layer is woven from 304 stainless steel, and the base layer is made of high-temperature resistant silicone material, which is tightly adhered to the outside of the stainless steel braided layer.

[0008] Furthermore, the fiber layer has the characteristics of insulation, heat resistance, corrosion resistance and high mechanical strength, and is tightly wrapped around the outside of the insulation layer. The insulation layer is made of AEPS modified polystyrene insulation cotton, and the insulation layer has a three-layer wrapping structure with a thickness of 3cm and a flame retardant rating of Class A.

[0009] Furthermore, the corrugated pipe is made of PE material, and the nylon protective sleeve is made of impact-resistant nylon reinforced synthetic material.

[0010] Furthermore, the threaded connector uses a 304 stainless steel nut.

[0011] Furthermore, the Harding aviation plug and the crimping end of the heat-insulating hot melt adhesive tube are crimped together using a professional crimping tool, and the crimping end is reinforced with a heat-shrink sleeve. The double protection includes an outer nylon braided mesh tube and an inner black fiberglass tube, which are tightly fitted together to form a cable protection channel.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Because the heating layer is made of Teflon silicone to wrap the steel heating wire, it can prevent the steel heating wire from being exposed in the working environment, eliminate the risk of electric shock from the steel heating wire, and also increase the flexibility and safety of the entire heating layer, increasing the service life and stability in special environments, such as the high-intensity operation of robotic arms.

[0014] 2. A stainless steel braided layer provides primary protection for the Teflon inner liner, forming mechanical protection to resist the effects of external pressure and mechanical friction. A bottom layer acts as a bridge for isolation, protection, and heat conduction. A corrugated pipe is used to wrap around the outside of the insulation layer, mainly providing protection against corrosion, wear, and environmental changes. A nylon protective sleeve serves as the outermost protective structure of the insulated hot melt adhesive pipe, while also considering aesthetics and protecting the connection terminals. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention in cross-section;

[0016] Figure 2 This utility model Figure 1 A schematic diagram of the structure of the enlarged view at point A in the middle;

[0017] Figure 3 This utility model Figure 1 A structural schematic diagram of the enlarged view at point B in the middle;

[0018] Figure 4 This utility model Figure 1 A structural schematic diagram of the enlarged view at point C;

[0019] Figure 5 This utility model Figure 1 A structural schematic diagram of the enlarged view at point D.

[0020] In the picture: 1. Teflon inner liner; 2. Stainless steel braided layer; 3. Base layer; 4. Heating layer; 5. Fiber layer; 6. Insulation layer; 7. Corrugated pipe; 8. Nylon protective sleeve; 9. Threaded connector; 10. Cable outlet; 11. Harding aviation plug. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figures 1-5 This utility model provides a technical solution: a heat-insulating hot melt adhesive tube, comprising, from the inside out, a Teflon inner liner 1, a stainless steel braided layer 2, a base layer 3, a heating layer 4, a fiber layer 5, an insulation layer 6, a corrugated tube 7, and a nylon protective sleeve 8; the heating layer 4 uses a steel-flower heating wire as the inner wire, which is wrapped with Teflon silicone, forming a closed structure; the stainless steel braided layer 2 provides primary protection for the Teflon inner liner 1, forming mechanical protection against external pressure and mechanical friction; the base layer 3 acts as a bridge for isolation and heat conduction; and the heating layer 4 provides the heat required to maintain the hot melt adhesive in a molten state, making it a key structure for ensuring good fluidity of the hot melt adhesive. Furthermore, because the heating layer 4 is wrapped with Teflon silicone... The steel-sparked heating wire prevents it from being exposed in the working environment, eliminating the risk of electric shock. It also increases the flexibility and safety of the entire heating layer 4, extending its service life and stability in special environments, such as high-intensity operation of robotic arms. The fiber layer 5 provides insulation and mechanical protection for the heating layer 4, the bottom layer 3, the stainless steel braided layer 2, and the Teflon inner liner 1. The insulation layer 6 locks in the heat generated by the heating layer 4, reducing heat loss and controlling the temperature of the hose. The corrugated tube 7 wraps around the insulation layer 6, providing corrosion resistance, wear resistance, and environmental adaptability. The nylon protective sleeve 8 serves as the outermost protective structure of the insulated hot melt adhesive hose, combining aesthetics with protection for the terminals.

[0023] The insulated hot melt adhesive tube, which consists of a Teflon inner liner 1, a stainless steel braided layer 2, a base layer 3, a heating layer 4, a fiber layer 5, an insulation layer 6, a corrugated tube 7, and a nylon protective sleeve 8, has a connector assembly at one end and a threaded joint 9 at the other end. The threaded joint 9 is used to achieve a stable connection between the insulated hot melt adhesive tube and other equipment, and to ensure the sealing of the hot melt adhesive delivery.

[0024] The outlet 10 of the insulated hot melt adhesive tube, which consists of a Teflon inner liner 1, a stainless steel braided layer 2, a base layer 3, a heating layer 4, a fiber layer 5, an insulation layer 6, a corrugated tube 7, and a nylon protective sleeve 8, is equipped with double protection. A cable connecting the insulated hot melt adhesive tube and the Harding aviation plug 11 runs through the outlet 10, so as to realize the reliable connection between the insulated hot melt adhesive tube and the external line, ensure the stability of signal and power transmission, and protect the wiring and soldering points.

[0025] The stainless steel braided layer 2 is made of 304 stainless steel, and the bottom layer 3 is made of high-temperature resistant silicone. The high-temperature resistant silicone is tightly attached to the outside of the stainless steel braided layer 2. The use of high-temperature resistant silicone in the bottom layer 3 can effectively prevent short circuits and other safety problems caused by the contact between the damaged circuit and the stainless steel braided layer 2, providing a reliable safety barrier for the internal circuit. On the other hand, by utilizing the heat-absorbing and conductive properties of silicone, the heat generated by the heating layer 4 can be quickly transferred to the Teflon inner liner 1, improving the heating efficiency of the hot melt adhesive, reducing heat loss during the transfer process, and ensuring that the hot melt adhesive is always in a stable molten state.

[0026] Fiber layer 5 possesses insulation, heat resistance, corrosion resistance, and high mechanical strength, and is tightly wrapped around the outside of insulation layer 6. Insulation layer 6 uses AEPS modified polystyrene insulation cotton, which has a three-layer wrapping structure, a thickness of 3cm, and a flame retardant rating of A2. The use of AEPS modified polystyrene insulation cotton with a three-layer wrapping structure and a thickness of 3cm provides significant insulation effect, effectively reducing heat loss and ensuring the temperature stability of hot melt adhesive during transportation, thus improving the performance of hot melt adhesive. The flame retardant rating of this insulation cotton reaches A2, providing good fire safety performance and avoiding fire hazards caused by high temperatures. At the same time, the three-layer structure design effectively controls the temperature of the hose outer skin, preventing operators from being burned and improving operational safety.

[0027] The corrugated pipe 7 is made of PE material, which has excellent corrosion resistance and can adapt to the erosion of various chemical media in industrial environments. Its excellent wear resistance reduces frictional wear between the hose and external equipment or environment. It also has good low-temperature resistance and impact resistance, allowing the hose to maintain its structural integrity even in low-temperature environments or when subjected to minor impacts, thus expanding the hose's application range under different environmental conditions. The nylon protective sleeve 8 is made of impact-resistant nylon fiber-reinforced synthetic material, which has strong impact resistance and can effectively resist damage to the hose from external collisions and drops. Its material properties also enhance the overall aesthetics of the hose, meeting the appearance requirements of industrial equipment. In addition, the nylon protective sleeve 8 provides targeted protection for the connection points, reducing damage to the connection points caused by external forces and further ensuring the overall service life of the hose.

[0028] The threaded connector 9 is made of 304 stainless steel nut, which has excellent corrosion resistance and rust prevention properties. It can adapt to complex industrial environments such as humid and multi-media environments, avoiding connection loosening and leakage problems caused by connector corrosion and rust. It also supports customized sizes to meet the connection needs of different equipment. Its surface without indentation design ensures the sealing and stability of the connection, eliminating hot melt adhesive leakage and production interruption caused by connector problems during the production process.

[0029] The Harding aviation plug 11 is crimped to the insulated hot melt adhesive tube using a professional crimping tool. The crimped end is reinforced with a heat-shrink sleeve, providing double protection through an outer nylon braided mesh tube and an inner black fiberglass tube. The nylon braided mesh tube and the black fiberglass tube fit tightly together to form a protective cable channel. The Harding aviation plug 11 offers high connection accuracy and stability, ensuring efficient power and signal transmission. The professional crimping tool, combined with the external heat-shrink sleeve reinforcement, effectively prevents the connection from coming loose and provides a tight seal at the solder joint. To protect the welding points from damage caused by vibration, friction and other external forces, ensure the long-term stable operation of the hose, and reduce equipment downtime due to connection failures, a dual structure of outer nylon braided mesh and inner black fiberglass tube is adopted. The nylon braided mesh has a certain mechanical protection capability, while the black fiberglass tube can fill the gaps in the nylon braided mesh, preventing the line from being in a vacuum state, preventing external dust, moisture and other impurities from entering the line, and resisting mechanical wear and external pulling damage to the line, ensuring the safety and stability of line transmission, and extending the service life of the outlet 10.

[0030] Working principle: During use, the steel heating wire of heating layer 4 generates heat, which is quickly conducted to Teflon inner liner 1 through bottom layer 3. The hot melt adhesive remains in a molten state and is stably transported in Teflon inner liner 1. Insulation layer 6 effectively locks in heat and reduces loss. Stainless steel braided layer 2 and fiber layer 5 resist external pressure and corrosion. Corrugated tube 7 and nylon protective sleeve 8 prevent mechanical damage. The protective structure of Harding aviation plug 11 and cable outlet 10 ensures connection stability and safety during long-term use. It is suitable for various industrial scenarios such as robotic arm operation and food packaging.

[0031] Based on 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.

Claims

1. A heat-insulating hot melt adhesive pipe, characterized in that, It includes, from the inside out, a Teflon inner liner (1), a stainless steel braided layer (2), a base layer (3), a heating layer (4), a fiber layer (5), a heat insulation layer (6), a corrugated tube (7), and a nylon protective sleeve (8); the heating layer (4) uses a steel flower heating wire as the inner wire, and the outside of the steel flower heating wire is wrapped with Teflon silicone, and the steel flower heating wire forms a closed structure through the Teflon silicone wrapping.

2. The heat-insulating hot melt adhesive tube according to claim 1, characterized in that: The insulated hot melt adhesive tube, which consists of a Teflon inner liner (1), a stainless steel braided layer (2), a base layer (3), a heating layer (4), a fiber layer (5), an insulation layer (6), a corrugated tube (7), and a nylon protective sleeve (8), has a connector assembly at one end and a threaded joint (9) at the other end.

3. The heat-insulating hot melt adhesive tube according to claim 1, characterized in that: The outlet (10) of the heat-insulating hot melt adhesive tube, which consists of a Teflon inner liner (1), a stainless steel braided layer (2), a base layer (3), a heating layer (4), a fiber layer (5), an insulation layer (6), a corrugated tube (7), and a nylon protective sleeve (8), is equipped with double protection, and a cable connecting the heat-insulating hot melt adhesive tube and the Harding aviation plug (11) runs through the outlet (10).

4. The heat-insulating hot melt adhesive tube according to claim 1, characterized in that: The stainless steel braided layer (2) is woven from 304 stainless steel, and the base layer (3) is made of high-temperature resistant silicone material. The high-temperature resistant silicone is tightly attached to the outside of the stainless steel braided layer (2).

5. The heat-insulating hot melt adhesive tube according to claim 1, characterized in that: The fiber layer (5) has the characteristics of insulation, heat resistance, corrosion resistance and high mechanical strength, and is tightly wrapped around the outside of the insulation layer (6). The insulation layer (6) is made of AEPS modified polystyrene insulation cotton. The insulation layer (6) has a three-layer wrapping structure with a thickness of 3cm and a flame retardant rating of A2.

6. The heat-insulating hot melt adhesive tube according to claim 1, characterized in that: The corrugated pipe (7) is made of PE material, and the nylon protective sleeve (8) is made of impact-resistant nylon fiber-reinforced synthetic material.

7. The heat-insulating hot melt adhesive tube according to claim 2, characterized in that: The threaded connector (9) uses a 304 stainless steel nut.

8. The heat-insulating hot melt adhesive tube according to claim 3, characterized in that: The Harding aviation plug (11) is crimped to the crimping end of the heat-insulating hot melt adhesive tube by a professional crimping tool, and the crimping end is provided with a heat shrink sleeve reinforcement structure. The double protection includes an outer nylon braided mesh tube and an inner black fiberglass tube. The nylon braided mesh tube and the black fiberglass tube are tightly fitted to form a cable protection channel.

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