Rubber tube heating sleeve

By designing a heating sleeve for the glue hose and adopting a three-layer heating device and temperature controller, the problem of poor fluidity of the glue in the hose at low temperatures is solved, achieving stability and ease of maintenance in the glue application process. It is suitable for various dispensing machines and glue types.

CN224221827UActive Publication Date: 2026-05-12DONGGUAN STARTUP APPLIED MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN STARTUP APPLIED MATERIALS CO LTD
Filing Date
2025-06-11
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In existing adhesive application equipment, the adhesive in the hose has poor fluidity at low temperatures, resulting in poor, uneven, and unstable adhesive dispensing. Furthermore, the existing heating structure is complex and inconvenient to maintain, and cannot effectively solve the problem of temperature fluctuations in the adhesive in the hose.

Method used

A hose heating sleeve was designed, which adopts a three-layer heating cylinder (inner silicone heater, middle heat insulation cotton, and outer stainless steel frame). The heater temperature is adjusted by a temperature controller to ensure uniform heating of the glue in the hose and reduce the impact of ambient temperature changes.

Benefits of technology

It improves the fluidity and application stability of the adhesive, simplifies the maintenance process, is highly adaptable, and is suitable for different dispensing machines and adhesive types, ensuring the accuracy and consistency of the application process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224221827U_ABST
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Abstract

The utility model relates to a rubber tube heating sleeve which comprises a heating cylinder, a clamping seat, a fixing plate, a temperature controller and a dispensing machine. The heating cylinder is composed of a silica gel heater, heat insulation cotton and a stainless steel frame, and the heating cylinder is arranged outside the rubber pipe in a sleeving mode. The heating cylinder is installed in a clamping groove of the clamping base, and the clamping base is connected with the fixing plate through the threaded fixing hole. A rubber tube seat and a needle head bayonet are arranged on the clamping seat and are respectively used for fixing a rubber tube and mounting a sizing needle head; the fixed plate is mounted on the dispensing machine; and the silica gel heater is connected with the temperature controller. According to the structure, glue in the glue pipe can be heated, the fluidity of the glue is improved, the influence of environment temperature change is reduced, the gluing stability is guaranteed, and the glue pipe is convenient to replace. The device is compact in structure, convenient to disassemble and assemble and suitable for various types of dispensing equipment.
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Description

Technical Field

[0001] This utility model relates to the field of dispensing equipment technology, and more specifically to a heating sleeve for a dispensing hose. Background Technology

[0002] In electronic packaging, precision assembly, industrial automation, and many other fields, adhesive application is a key connection, sealing, and bonding process, widely used in industrial production processes such as circuit board packaging, LED dispensing, hardware assembly, and automotive component sealing. With the expansion of application areas and the increasing performance requirements, adhesive application systems are demanding higher and higher standards in terms of adhesive flowability, application precision, and dispensing stability.

[0003] In existing adhesive application equipment, especially in structures that use hoses to transport adhesive from a storage device to the application nozzle, the high viscosity of the adhesive during transport, particularly at low temperatures, leads to problems such as uneven dispensing, inconsistent application, and unstable adhesive volume. This phenomenon is especially pronounced in winter environments or workshops with strict temperature control requirements. To improve adhesive dispensing performance, existing technologies mainly focus on the following methods:

[0004] 1. Localized Needle Heating Structure: Existing glue application equipment generally uses heated needles or nozzles, employing elements such as heating wires or ceramic heaters to heat the glue application needle. While this method can improve the flowability of the glue at the needle to some extent, the extremely small heating area cannot regulate the temperature of the glue transported over long distances in the glue tube. Therefore, the problem of poor glue dispensing due to the viscosity of the glue in the tube still exists.

[0005] 2. Adhesive Preheating Storage Tank Structure: Some equipment uses adhesive storage tanks with heating functions, attempting to preheat the adhesive before it is dispensed. However, since the storage tank and the dispensing port are still connected by a hose, heating is limited to the storage stage, leaving the hose exposed and significantly affected by ambient temperature. As the adhesive temperature drops during transport, it can still thicken again or even partially solidify, resulting in unsatisfactory dispensing performance.

[0006] 3. Ambient Heating Chamber: In some high-end dispensing applications, an integrated heating chamber is used to enclose the entire dispensing area or dispensing device, raising the ambient temperature. However, this method is costly, energy-intensive, and structurally complex, making it unsuitable for small, compact dispensing equipment and hindering later maintenance and partial structural replacement.

[0007] In summary, existing heating methods in glue application equipment mainly focus on the needle tip or glue storage end, and a structural solution for effectively heating the glue in the glue tube has not yet been developed. In reality, most of the glue's flow path during the application process is inside the glue tube. Especially under conditions such as using flexible silicone tubing, long-distance delivery, and intermittent glue application, the glue inside the tube is highly susceptible to temperature fluctuations due to ambient temperature, resulting in unstable glue dispensing or even blockage.

[0008] In addition, because the heating area and the hose are not an integrated structure in the existing equipment, the maintenance process is cumbersome. When replacing glue or hose, it is often necessary to remove the heating device, reposition the heating position, and calibrate the needle, which seriously affects the glue application efficiency and ease of operation.

[0009] Therefore, the market urgently needs a heating structure that can directly heat the glue in the hose, while also being compact, securely connected, easy to install, and highly detachable, in order to achieve stable and reliable glue dispensing control, simple daily maintenance, and broad industrial applicability. Utility Model Content

[0010] This utility model relates to a heating sleeve for a glue hose, aiming to provide a device that is simple in structure, easy to operate, and can effectively improve the flowability and application stability of glue. Specifically, this invention designs a heating sleeve that can heat the glue in the glue hose, thereby solving the problems of poor flowability and unstable application caused by high glue viscosity or low ambient temperature during the existing glue application process.

[0011] To achieve the above objectives, this utility model provides a hose heating sleeve, comprising:

[0012] Temperature controller, used to regulate the operating temperature of the heater;

[0013] The heating cylinder consists of a three-layer structure: an inner layer of silicone heater; a middle layer of heat insulation cotton; and an outer layer of stainless steel frame.

[0014] The mounting bracket, installed at the lower end of the heating cylinder, includes: a mounting groove for fixing the heating cylinder; a threaded fixing hole for fixing the mounting bracket to the fixing plate with screws; a needle bayonet for connecting the dispensing needle; and a tube holder for fixing the dispensing tube.

[0015] A mounting plate for connecting to a dispensing machine via its mounting holes.

[0016] Preferably, the card holder is connected to the fixing plate through a threaded fixing hole.

[0017] Preferably, the heating cylinder is securely connected to the mounting bracket via a slot.

[0018] Preferably, the hose is connected to the hose seat by a threaded fixing method.

[0019] Preferably, the fixing plate is connected to the dispensing machine through mounting holes.

[0020] As can be seen from the above technical solution, compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] (1) Improve the fluidity of the glue: By heating the glue in the glue tube, the fluidity of the glue can be effectively improved, thereby ensuring the stability of the glue application process.

[0022] (2) Reduce the impact of temperature fluctuations: Due to the constant temperature function of the heating device, the influence of external ambient temperature changes on the flowability of the adhesive can be reduced, making the adhesive application process more precise and stable.

[0023] (3) Simplified maintenance and replacement: The design of the heating sleeve makes it easier to replace the hose. Only the hose needs to be replaced, without disassembling the heating cylinder or adjusting the glue application needle, which greatly improves the maintenance efficiency of the equipment.

[0024] (4) Strong adaptability: This device is suitable for different types of dispensing machines and adhesives, and has strong versatility, which can meet different adhesive application needs.

[0025] (5) Temperature control accuracy: The temperature controller can accurately adjust the working state of the heater to ensure that the glue is heated within the set temperature range, thus ensuring the stability and consistency of glue application. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0028] Figure 2 This is an exploded view of the structure of the heating cylinder of this utility model.

[0029] Figure 3 This is a schematic diagram of the structure of this utility model installed on a dispensing machine.

[0030] 1-Temperature controller, 2-Heating cylinder, 3-Insulation cotton, 4-Silicone heater, 5-Card holder, 501-Card slot, 502-Threaded fixing hole, 503-Needle bayonet, 504-Tube holder, 6-Fixing plate, 7-Dispensing machine, 8-Tube. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Example

[0033] The following is in conjunction with the appendix Figures 1 to 3 The present invention will be further described below. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0034] This embodiment relates to a specific application of a hose heating sleeve, which is suitable for glue application systems. When using high-viscosity glue or applying glue in a low-temperature environment, it can effectively improve the fluidity of the glue and ensure the stability of the glue application process.

[0035] 1. Structural composition:

[0036] In this embodiment, the hose heating sleeve consists of the following parts: Heating cylinder 2: The heating cylinder adopts a three-layer structure design. The inner layer is a silicone heater 4, which is connected to the temperature controller 1 and can uniformly heat the glue in the hose. The middle layer is heat insulation cotton 3, which effectively prevents heat loss and ensures heating efficiency. The outer layer is a stainless steel frame 2, which ensures that the heating cylinder has sufficient strength and corrosion resistance.

[0037] Card holder 5: The card holder is used to fix the heating cylinder and connect the hose. The card holder includes a slot 501, through which the heating cylinder is securely installed. The threaded fixing hole 502 of the card holder connects the card holder to the fixing plate 6 with screws to ensure the stability of the heating device.

[0038] 504 Hose holder: The hose holder is used to install hose 8. The hose is fixed to the hose holder by a threaded connection to ensure that the hose will not loosen or fall off during the heating process.

[0039] Fixing plate 6: The fixing plate is used to fix the card holder and heating cylinder to the dispensing machine 7. The fixing plate is connected to the dispensing machine through the mounting holes on it, ensuring that the entire heating device will not shift during the dispensing process.

[0040] Temperature Controller 1: The temperature controller is connected to the silicone heater via a wire and adjusts the heater's operating temperature in real time. Users can set the required temperature range according to the viscosity of the adhesive and the application requirements.

[0041] 2. Installation process:

[0042] Insert the heating cylinder 2 into the card holder 5 through the card slot 501 to ensure that the heating cylinder is securely installed on the card holder.

[0043] The bracket 5 and the fixing plate 6 are connected by bolts through the threaded fixing hole 502 to ensure that the entire heating device is firmly fixed.

[0044] Connect hose 8 to hose seat 504 via threaded connection to ensure that hose is tightly fixed inside heating cylinder.

[0045] Insert the glue application needle 8 into the needle holder 503 to ensure that the glue application needle is securely installed.

[0046] Connect the fixing plate 6 to the dispensing machine 7 through the mounting holes to ensure that the heating device is securely installed on the dispensing machine.

[0047] Finally, turn on the power, connect the temperature controller 1 to the silicone heater 4, and adjust the required working temperature through the temperature control system.

[0048] 3. Work process:

[0049] After the equipment is started, the temperature controller 1 will begin to adjust the working status of the silicone heater 4. The temperature control system regulates the heat output of the silicone heater through current, so that the glue is heated to the set temperature in the glue tube 8.

[0050] The heat insulation cotton 3 ensures that heat is not lost, further improving heating efficiency, while ensuring uniform heating of the adhesive throughout the entire hose.

[0051] When the heated adhesive flows inside the tube, its fluidity is significantly improved, ensuring stability and precision during the application process.

[0052] The glue application needle 8 outputs a stable amount of glue through the needle holder 503, and the glue application process is not affected by changes in the external ambient temperature.

[0053] Temperature controller 1 monitors the adhesive temperature in real time and automatically adjusts it according to the actual temperature and the set temperature to ensure the fluidity of the adhesive and the stability of the application.

[0054] 4. Application Scenarios:

[0055] This embodiment is applicable to automated production lines requiring high-precision adhesive application, especially when the adhesive viscosity is high and the ambient temperature is low, effectively improving the operational stability of the adhesive application system. Specific application scenarios include:

[0056] Application of high-viscosity adhesives, such as certain structural adhesives, sealants, and electronic adhesives;

[0057] In production workshops with low ambient temperatures, adhesives tend to harden easily or have poor flowability.

[0058] In automated equipment that requires precise control of adhesive dispensing volume and stability.

[0059] 5. Equipment maintenance and replacement:

[0060] Hose replacement: When hose 8 needs to be replaced, simply loosen the threaded connection on hose seat 504, remove the old hose and replace it with a new hose. There is no need to disassemble the heating cylinder or the applicator needle, which simplifies the maintenance process.

[0061] Temperature controller maintenance: Temperature controller 1 is connected to the heater. Users can adjust the set temperature range as needed to adapt to different glue types and application requirements.

[0062] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hose heating sleeve, characterized in that, Including: Temperature controller (1) is used to regulate the operating temperature of the heater; The heating cylinder (2) consists of a three-layer structure: the inner layer is a silicone heater (4); the middle layer is heat insulation cotton (3); and the outer layer is a stainless steel frame. Card holder (5), installed at the lower end of heating cylinder (2), includes: The slot (501) is used to fix the heating cylinder (2); the threaded fixing hole (502) is used to fix the card seat (5) to the fixing plate (6) by screws; the needle bayonet (503) is used to connect the glue application needle; the glue tube seat (504) is used to fix the glue tube (8). A mounting plate (6) is used to connect to a dispensing machine (7) through its mounting holes.

2. The hose heating sleeve according to claim 1, characterized in that, The card holder (5) is connected to the fixing plate (6) through the threaded fixing hole (502).

3. The hose heating sleeve according to claim 1, characterized in that, The heating cylinder (2) is securely connected to the card holder (5) via a slot (501).

4. The hose heating sleeve according to claim 1, characterized in that, The hose (8) is connected to the hose seat (504) by means of threaded fixing.

5. The hose heating sleeve according to claim 1, characterized in that, The fixing plate (6) is connected to the dispensing machine (7) through the mounting holes.