Heating duct for a hot-melt glue tank

Abstract

The utility model discloses a heating pipeline of hot melt glue tank, including heat conduction unit, heat conduction unit includes installation frame and a plurality of parallel arrangement setting heat pipe, and the upper and lower ends of heat pipe are installed on the frame, and the surface of heat pipe extends outward and is provided with heat exchange tooth for heat conduction, and the heat exchange tooth on adjacent heat pipe is staggered arrangement, and the adjacent staggered heat exchange tooth is inserted together, and forms the heat exchange space of longitudinal section and presents the zigzag shape. The utility model discloses through the staggered arrangement of heat exchange tooth on heat pipe and inserts, makes heat exchange tooth can extend longer distance to the benefit of increasing the surface area of heat exchange tooth to the better heat conduction of heat conduction, can be more sufficient to heat and melt down completely to the glue body, improves the overall heating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of heating device technology, and more specifically to a heating pipe for a hot melt adhesive box. Background Technology

[0002] In the coating industry, existing oil-heated glue tanks and other equipment use high-temperature hot oil circulating in heat exchange pipes to transfer heat during the coating process. The applicant's previous utility model application (application number 202421808163.8, entitled "A Utility Model Application for an Oil Heating Pipe Structure for a Hot Melt Adhesive Box") employed multiple parallel heat-conducting pipes to circulate high-temperature hot oil, thereby increasing the oil supply frequency and avoiding the drawback of lower oil temperature when using longer pipes. Furthermore, in its implementation, heat exchange teeth were designed on the surface of the heat-conducting pipes to increase the surface area for more efficient heat conduction. This utility model aims to further design and optimize the heat-conducting pipes and heat exchange teeth to improve heat exchange efficiency. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a heating pipe for a hot melt adhesive box, which improves the efficiency of heat exchange by arranging adjacent heat exchange teeth in a cross pattern.

[0004] This utility model provides the following technical solution: a heating pipe for a hot melt adhesive box, including a heat-conducting unit, the heat-conducting unit including a mounting frame and a plurality of parallel heat-conducting pipes, the upper and lower ends of the heat-conducting pipes are mounted on the frame, the surface of the heat-conducting pipes extends outward to provide heat exchange teeth for heat conduction, the heat exchange teeth on adjacent heat-conducting pipes are staggered, and the adjacent staggered heat exchange teeth are interwoven to form a heat exchange space with a longitudinal cross section in the shape of a zigzag line.

[0005] As an improvement, the heat pipe has an installation head end and an installation tail end, and the mounting frame has upper and lower sets of mounting plates. The mounting plates are provided with mounting grooves for placing and installing the heat pipe. The installation head end is provided with an upper baffle and a lower baffle for cooperating with and limiting the mounting plate. When the installation head end is placed in the mounting groove for installation, the space between the upper baffle and the lower baffle limits the mounting plate and thus restricts the axial displacement of the heat pipe.

[0006] As an improvement, the two sets of mounting plates are an upper plate and a lower plate. On the upper plate and the lower plate, an annular boss is set on the outer periphery of the two mounting slots corresponding to the installation of a heat pipe. The mounting slots on the upper plate and the lower plate are respectively provided with annular bosses at intervals. The annular bosses are used to block the installation of the upper baffle and the lower baffle, so that the installation tail end is installed corresponding to the annular boss. The installation head end can only be installed in the mounting slot without an annular boss. The heat pipes are arranged and installed in a forward-backward-reverse pattern.

[0007] As an improvement, the mounting plate includes a first plate and a second plate, which are joined together to form a mounting groove.

[0008] As an improvement, the heat exchange teeth are several annular teeth arranged at intervals along the axial direction of the heat pipe.

[0009] The beneficial effects of this invention are as follows: By staggering and interlacing the heat exchange teeth on the heat-conducting pipe, the heat exchange teeth can extend a longer distance, thereby increasing the surface area of ​​the heat exchange teeth and thus improving heat conduction; a zigzag heat exchange space is formed between the adjacent heat exchange teeth, which cover a wider area. When the colloid falls to the heat-conducting unit, it is heated and cut by the densely arranged heat exchange teeth. The cut and melted colloid passes through the zigzag heat exchange space, is heated more fully and melts completely before falling, thus improving the overall heating efficiency. Attached Figure Description

[0010] Figure 1 This is a longitudinal cross-sectional view and a partial enlarged view of the heat-conducting unit of this utility model.

[0011] Figure 2 This is a longitudinal cross-sectional view of the heat pipe of this utility model.

[0012] Figure 3 This is a schematic diagram of the heat pipe of this utility model mounted on the mounting plate.

[0013] Figure 4 This is a three-dimensional structural diagram of the present invention applied to a hot melt adhesive box. Detailed Implementation

[0014] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0015] like Figure 1 , 2 Figures 3 and 4 show specific embodiments of the heating pipes of the hot melt adhesive box of this utility model. This embodiment includes a heat-conducting unit 1, which includes a mounting frame 11 and a plurality of parallel heat-conducting pipes 12. The upper and lower ends of the heat-conducting pipes 12 are mounted on the frame 11. The surface of the heat-conducting pipes 12 extends outward to provide heat exchange teeth 3 for heat conduction. The heat exchange teeth 3 on adjacent heat-conducting pipes 12 are staggered, and the adjacent staggered heat exchange teeth 3 are interlocked to form a heat exchange space 4 with a longitudinal cross-section in the shape of a broken line.

[0016] In use, the heat-conducting unit 1 is installed on the four side walls of the hot melt adhesive box 2 according to its specifications, or at different heights on the four side walls. The heat-conducting unit 1 includes an oil inlet pipe 13, an oil outlet pipe 14, and several heat-conducting pipes 12. The oil outlet pipe 14 is horizontally positioned at the top, and the oil inlet pipe 13 is horizontally positioned at the bottom. The several heat-conducting pipes 12 are arranged at intervals between the oil inlet pipe 13 and the oil outlet pipe 14 and are connected to the oil inlet pipe 13 and the oil outlet pipe 14. When the heat-conducting unit 1 is in use, hot oil is pressurized and enters the oil inlet pipe 13, and the hot oil is distributed to each heat-conducting pipe 12. The numerous heat pipes 12 disperse the flow of hot oil, slow down the flow speed of hot oil, and force it to conduct heat more fully. Relying on the heat-conducting surface formed by the spaced arrangement of several heat pipes 12, the heat is fully introduced into the hot melt adhesive box 1 to heat and melt the adhesive in the hot melt adhesive box 1. Afterwards, the oil is collected from the oil outlet pipe 14 above the heat pipes 12 and flows out for collection. After heating, it re-enters the heating cycle. Heat exchange teeth 3 extend outward from the surface of the heat pipe 12, thereby greatly increasing the surface area for external contact. As an optimization of the structure, adjacent heat exchange teeth 3 are staggered, allowing them to extend outward a longer distance and improving heat conduction efficiency. Adjacent heat exchange teeth 3 interweave to form a heat exchange space 4 with a longitudinal cross-section in the shape of a zigzag line. In actual use, the adhesive to be heated in the hot melt adhesive box 2 falls to the heat conduction unit 1. When it comes into contact with the parallel heat pipes 12, it can fully contact the heat exchange teeth 3 of each heat pipe 12 and be melted and cut. The cut adhesive continues to enter the zigzag heat exchange space 4, fully contact the upper and lower surfaces of the adjacent heat exchange teeth 3, be heated, and completely melt and fall. Overall, this greatly improves the heat conduction efficiency of the adhesive and thus improves the melting efficiency of the adhesive.

[0017] As an improved specific implementation, the heat pipe 12 has a mounting head end 51 and a mounting tail end 52. The mounting frame 11 has upper and lower sets of mounting plates. The mounting plates are provided with mounting grooves 60 for placing and installing the heat pipe 12. The mounting head end 51 is provided with an upper baffle 511 and a lower baffle 512 for cooperating with and limiting the mounting plate. When the mounting head end 51 is placed in the mounting groove 60 for installation, the space between the upper baffle 511 and the lower baffle 512 limits the axial displacement of the heat pipe 12 by limiting the mounting plate.

[0018] like Figure 1As shown, in order to improve the installation efficiency of the heat pipe 12 and reduce the component cost of the heat pipe 12, installation head end 51 and installation tail end 52 with different structures are further designed. The heat pipe 12 of this application can be processed and manufactured by a set of molds, that is, the entire equipment uses a heat pipe 12 of the same specification. The heat exchange teeth 3 of adjacent heat pipes 12 achieve an interlocking structure by the different tooth positions when installed in the forward or reverse direction. The head end is identified by the upper baffle 511 and the lower baffle 512 set on the installation head end 51. When installing the heat pipe 12, the installation head end 51 is on top and the installation tail end 52 is on the bottom, and the adjacent installation tail end 52 is on top and the installation head end 51 is on the bottom. They are arranged in sequence as follows. Figure 1 As shown; this installation method, combined with the corresponding size design of the heat exchange teeth 3, allows for the interlacing arrangement and installation of the heat exchange teeth 3 using a single specification of heat pipe 12. After the workers complete the installation of the heat pipe 12 with alternating positive and negative sides, the upper baffle 511 and the lower baffle 512 can effectively limit the axial position of the heat pipe 12, facilitating the connection between the heat pipe 12 and the oil inlet pipe 13 and oil outlet pipe 14 at both ends.

[0019] As an improved specific implementation, the two sets of mounting plates are an upper plate 61 and a lower plate 62. On the upper plate 61 and the lower plate 62, an annular boss 63 is selectively provided on the outer periphery of the two mounting slots 60 corresponding to the mounting of a heat pipe 12. The mounting slots 60 on the upper plate 61 and the lower plate 62 are provided with annular bosses 63 at intervals. The annular bosses 63 are used to block the installation of the upper baffle 511 and the lower baffle 512, so that the mounting tail end 52 is installed corresponding to the annular boss 63. The mounting head end 51 can only be installed in the mounting slot 60 without annular bosses 63. The heat pipes 12 are arranged and installed in a positive-negative-positive pattern.

[0020] like Figure 1 As shown, as a further optimization of the installation structure, annular bosses 63 are provided to avoid potential installation errors by the workers. Annular bosses 63 are spaced apart on both the upper plate 61 and the lower plate 62. After observing the position of the annular bosses 63, the workers can directly determine to install the tail end 52 corresponding to the annular boss 63, while the other end of the mounting head 51 is engaged with the mounting groove 60 on the other side. This greatly improves the installation efficiency of the workers. Furthermore, because the baffle of the mounting head 51 interferes with the annular boss 63, the possibility of incorrect installation is avoided, thus preventing potential damage to adjacent heat exchange teeth 3 due to collisions caused by incorrect installation. Figure 1As shown, the annular boss 63 further extends the length of the mounting groove 60, thereby providing a more stable fit for the heat pipe 12. The adjacent heat pipes 12, whether at the head or tail end, can extend from the outer ends of the upper plate 61 and the lower plate 62 to the same length, thereby ensuring that all heat pipes 12 are in the same position when they are connected to the oil inlet pipe 13 and the oil outlet pipe 14, and maintaining the uniform and stable flow of hot oil in the overall pipeline.

[0021] As an improved specific implementation, the mounting plate includes a first plate body 64 and a second plate body 65, which are joined together to form a mounting groove 60.

[0022] like Figure 3 As shown, due to the structure of the heat pipe 12, it is difficult to install it by means of a sleeve. Therefore, the heat pipe 12 is installed by first installing it onto the second plate 65, with the installation head end 51 and installation tail end 52 accommodated in the installation groove 60, and then installing the first plate 64. By fixing the first plate 64 and the second plate 65, all heat pipes 12 are locked and the installation is completed.

[0023] As an improved specific implementation, the heat exchange teeth 3 are a number of annular teeth arranged at intervals along the axial direction of the heat pipe 12.

[0024] like Figure 1 , 2 As shown, the heat pipe 12 is manufactured using a single specification, and the heat exchange teeth 3 are designed as several annular teeth arranged axially at intervals, ensuring that the spacing between the teeth is sufficient to accommodate adjacent teeth. After the adjacent heat pipes 12 are installed, the resulting heat exchange space 4 is uniform and orderly. Even if a heat pipe 12 needs maintenance or replacement, such as... Figure 1 As shown, a single heat pipe 12 can be disassembled independently without affecting other adjacent heat pipes 12.

[0025] As an improved specific implementation, the side wall of the hot melt adhesive box 2 includes an upper wall 21, a middle wall 22 and a lower wall 23 connected in sequence. The middle wall 22 is funnel-shaped and its size is reduced. The heat conduction unit 1 is disposed at the middle wall 22 and the lower wall 23.

[0026] like Figure 4 As shown, the larger diameter of the upper wall 21 facilitates the insertion of the colloid, and the funnel-shaped middle wall 22 facilitates the colloid to lean against the heat-conducting unit 1 on the contact side wall, thereby allowing the colloid to contact the heat-conducting tube 12 of this application, promoting heating and melting. After heating and melting, the colloid falls more smoothly into the bottom position surrounded by the lower wall 23, where the heat-conducting unit 1 at the lower wall 23 continues to heat it to achieve full and uniform melting of the colloid.

[0027] 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 heating pipe for a hot melt adhesive box, comprising a heat-conducting unit (1), wherein the heat-conducting unit (1) comprises a mounting frame (11) and a plurality of parallel heat-conducting pipes (12), the upper and lower ends of the heat-conducting pipes (12) being mounted on the frame (11), and heat exchange teeth (3) for heat conduction extending outward from the surface of the heat-conducting pipes (12), characterized in that: The heat exchange teeth (3) on adjacent heat pipes (12) are staggered, and the staggered heat exchange teeth (3) are interwoven to form a heat exchange space (4) with a longitudinal cross section in the shape of a broken line.

2. The heating conduit of a hot melt adhesive tank according to claim 1, wherein: The heat pipe (12) has an installation head end (51) and an installation tail end (52). The mounting frame (11) has two sets of mounting plates, and the mounting plates are provided with mounting grooves (60) for placing and installing the heat pipe (12). The installation head end (51) is provided with an upper baffle (511) and a lower baffle (512) for cooperating with the mounting plate for limiting the position. When the installation head end (51) is placed in the mounting groove (60) for installation, the space between the upper baffle (511) and the lower baffle (512) limits the mounting plate and thus restricts the axial displacement of the heat pipe (12).

3. The heating conduit of a hot melt adhesive tank according to claim 2, wherein: The two sets of mounting plates are an upper plate (61) and a lower plate (62). On the upper plate (61) and the lower plate (62), an annular boss (63) is set on the outer periphery of the two mounting slots (60) corresponding to the installation of a heat pipe (12). The mounting slots (60) on the upper plate (61) and the lower plate (62) are respectively provided with annular bosses (63) at intervals. The annular bosses (63) are used to block the installation of the upper baffle (511) and the lower baffle (512), so that the mounting tail end (52) is installed corresponding to the annular boss (63). The mounting head end (51) can only be installed in the mounting slot (60) without an annular boss (63). The heat pipes (12) are arranged and installed in a positive-negative-positive pattern.

4. The heating conduit of a hot melt adhesive tank according to claim 2, wherein: The mounting plate includes a first plate (64) and a second plate (65), which are joined together to form a mounting groove (60).

5. A heating duct for a hot melt glue tank according to any one of claims 1-4, characterized in that: The heat exchange teeth (3) are a number of annular teeth arranged at intervals along the axial direction of the heat pipe (12).

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