Hot melt adhesive heating structure with staggered teeth
By using a staggered heating rod structure, the heat conduction area is increased and heat is transferred evenly, solving the problem of low heat conduction efficiency in existing heating devices and achieving efficient heating and quality improvement of hot melt adhesives.
Patent Information
- Application Number
- CN202520469506.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-17
AI Technical Summary
In existing heating devices, the small contact area between the cylindrical heating rod and the hot melt adhesive results in low thermal conductivity, which is difficult to improve.
The heating rod structure adopts a staggered tooth arrangement. By setting heat conduction teeth on the outer periphery of the metal tube and staggering them to form a wavy gap, the heat conduction area is increased and heat is transferred evenly. The use of spiral teeth reduces the difficulty of casting and installation. An electric heating core is installed inside the metal tube for uniform heating.
It improves the heating efficiency and quality of hot melt adhesive, avoids local overheating, and achieves excellent thermal conductivity and uniformity.
Smart Images
Figure CN223970308U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heating device technology, and more specifically to a hot melt adhesive heating structure with staggered teeth. Background Technology
[0002] In the coating industry, existing heated melt tanks typically have heating structures within the tank walls and space, where the adhesive melts as it falls. The conventional method for this internal heating structure involves several parallel heating rods. The hot melt adhesive is cut by the heat as it passes these rods. However, the conventional columnar heating rods have a small contact area with the hot melt adhesive, making it difficult to improve heat conduction efficiency. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a hot melt adhesive heating structure with staggered teeth, which increases the heat conduction area of the hot melt adhesive and improves the heat conduction efficiency by staggered tooth arrangement.
[0004] This utility model provides the following technical solution: a hot melt adhesive heating structure with staggered teeth, comprising a plurality of parallel heating rods, each heating rod comprising a metal tube and heat conduction teeth disposed on the outer periphery of the metal tube, wherein the plurality of parallel heating rods are arranged with the heat conduction teeth uniformly staggered in the radial direction, thereby forming a uniform wavy gap between adjacent heat conduction teeth.
[0005] As an improvement, the heat conduction teeth are helical teeth set on the outer periphery of the metal tube.
[0006] As an improvement, an electric heating core is provided in the middle of the metal tube along the axial direction.
[0007] As an improvement, the two ends of the metal tube are installed on the hot melt glue box, so that several parallel heating rods cover a plane space inside the hot melt glue box, allowing the hot melt glue to pass through the wavy gaps when moving from top to bottom.
[0008] As an improvement, the electric heating cores on several metal tubes are connected to the outside from the same side of the hot melt adhesive box.
[0009] The beneficial effects of this utility model are as follows: By arranging the metal tubes in parallel and setting the heat conduction teeth in a staggered manner to form a regular and uniform wavy gap as a flow channel, heat is transferred along the metal tubes to the heat conduction teeth, making the heat conduction more uniform and avoiding local overheating; the staggered teeth are evenly interlaced, and the heat replenishment is balanced, while having a large heat conduction area; the structural design of this utility model has excellent heat conduction efficiency and uniformity, which greatly improves the heating efficiency and quality of hot melt adhesive. Attached Figure Description
[0010] Figure 1 This is a schematic diagram and a partial enlarged view of the transverse cross-section structure of this utility model.
[0011] Figure 2 This is a front view structural diagram of the present invention.
[0012] Figure 3 This is a three-dimensional structural diagram of the heating rod body of this utility model. Detailed Implementation
[0013] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0014] like Figure 1 , 2 Figure 3 shows a specific embodiment of the staggered tooth arrangement hot melt adhesive heating structure of this utility model. This embodiment includes several parallel heating rods 1, each heating rod 1 including a metal tube 11 and heat conduction teeth 12 disposed on the outer periphery of the metal tube 11. The several parallel heating rods 1 are arranged with the heat conduction teeth 12 uniformly staggered in the radial direction, thereby forming a uniform wavy gap 0 between adjacent heat conduction teeth 12.
[0015] In use, this invention involves several parallel heating rods 1 installed inside a hot melt adhesive tank 2. When the adhesive descends to the position of the heating rod 1 within the tank 2, it is heated and cut, then passes through the gaps between the heating rods 1 and continues to be conveyed. As a structural optimization, the heating rod 1 is configured as a main cylindrical metal tube 11 with heat-conducting teeth 12 cast onto its outer periphery. When the metal tube 11 is installed in the hot melt adhesive tank 2, adjacent heat-conducting teeth 12 are evenly staggered, thus forming uniform wavy gaps 0. Figure 1 As shown, on the one hand, the heat conduction teeth 12 increase the heat conduction area, which can better conduct heat to the hot melt adhesive; on the other hand, the uniform wavy gaps 0 make the heat conduction more uniform, and the hot melt adhesive receives consistent heat conduction from the surrounding area, avoiding local overheating; thus greatly improving the heating efficiency and quality of the hot melt adhesive.
[0016] As an improved specific implementation, the heat conduction teeth 12 are helical teeth disposed on the outer periphery of the metal tube 11.
[0017] like Figure 1 , 3 As shown, the heat conduction teeth 12 are set as helical teeth, which reduces the difficulty and cost of casting. The structure of the helical teeth themselves can be uniformly molded, so that all heating rods 1 can be completed using a single mold. On the other hand, it reduces the difficulty of installation. When disassembling and assembling, the staff can adjust the arrangement of specific adjacent helical teeth by rotating the heating rod 1, which facilitates fine-tuning.
[0018] As an improved specific implementation, the metal tube 11 is provided with an electric heating core 13 in the middle along the axial direction.
[0019] like Figure 1 , 3 As shown, the central axis of the metal tube 11 is hollow to form an installation cavity. The electric heating core 13 is assembled to the central axis of the metal tube 11 to conduct heat outward in a uniform and stable manner. The electric heating core 13 is connected to an external power source for heating.
[0020] As an improved specific implementation, the two ends of the metal tube 11 are installed on the hot melt glue box 2, so that a number of parallel heating rods 1 cover a planar space in the internal space of the hot melt glue box 2, so that the hot melt glue passes through the wavy gap 0 when it moves from top to bottom.
[0021] like Figure 1 , 2 As shown, the hot melt adhesive box 2 has a rectangular cross-section. The two ends of the metal tube 11 are installed on the opposite side shells. Several parallel heating rods 1 cover a planar space to heat the passing adhesive. After the adhesive comes into contact with the heat conduction teeth 12, it can be fully heated and cut and melted by the spiral tooth structure. The melted hot melt adhesive moves downward along the thread gap of the spiral teeth and passes through the wavy gap 0. The uniform heat conduction ensures that the hot melt adhesive is fully melted and smoothly transported downward.
[0022] As an improved specific implementation, the electric heating cores 13 on several metal tubes 11 are connected to the outside from the same side of the hot melt adhesive box 2.
[0023] like Figure 1 As shown, the electric heating cores 13 that are connected to the outside from the same side can be wired and connected to the power supply in a unified manner, which makes it easier to manage and maintain them later.
[0024] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.
Claims
1. A staggered array hot melt glue heating structure comprising a plurality of parallel arranged heating rods (1), characterized in that: The heating rod body (1) comprises a metal tube body (11) and a heat conduction tooth (12) arranged on the outer periphery of the metal tube body (11), and a plurality of parallel heating rod bodies (1) are arranged in a staggered manner in the radial direction of the heat conduction tooth (12), so that adjacent heat conduction teeth (12) form a uniform wavy gap (0).
2. A staggered array hot melt glue heating structure according to claim 1, characterized in that: The heat conduction tooth (12) is a spiral tooth arranged on the outer periphery of the metal tube body (11).
3. A staggered array hot melt glue heating structure according to claim 1 or 2, characterized in that: The metal tube body (11) is provided with an electric heating core (13) in the middle in the axial direction.
4. The staggered array hot melt adhesive heating structure of claim 3, wherein: The two ends of the metal tube body (11) are mounted on the hot melt glue tank (2), so that a plurality of parallel heating rod bodies (1) cover a planar space in the internal space of the hot melt glue tank (2), and the hot melt glue passes through the wavy gap (0) when moving from top to bottom.
5. A staggered array hot melt glue heating structure according to claim 4, wherein: The electric heating cores (13) on the plurality of metal tube bodies (11) are connected outwards from the same side of the hot melt glue tank (2).