Hot air device for drying hot melt adhesive

Abstract

The utility model relates to the field of drying devices, in particular to a hot air device for drying hot melt adhesive. The device comprises two blast columns and an air outlet rod. The air outlet rod is perpendicularly connected with the two air blowing columns, a plurality of air outlets are formed in the side wall of the air outlet rod, an air guide roll is arranged above the air outlet rod and comprises a rotating roller and a thin film wound around the rotating roller, one end of the rotating roller is rotationally connected with one air blowing column, and the other end of the rotating roller penetrates through the other air blowing column to be connected with a connecting rod. The connecting rod is rotated to enable the rotating roller to roll the film, the free end of the film is connected with a frame piece, and when the film is unfolded, the frame piece supports the free end of the film. The two air blowing columns are connected with the air outlet rod to form an air outlet device capable of standing independently, and manual clamping intervention is reduced; and more stable and continuous temperature change is brought by utilizing air outlet of the side wall of the air outlet rod and cooperating with the film, and the condition that the surface of the hot melt adhesive is solidified too fast due to direct blowing of hot air is avoided.

Description

Technical Field

[0001] The utility model relates to the field of drying devices, in particular to a hot air device used for drying hot melt adhesive. Background Art

[0002] Hot melt adhesive uses the property that the viscosity of the colloid changes with the increase of temperature to achieve adhesion to objects. Because it is easy to operate, it is often used for adhesion in daily life. In daily hot melt adhesive bonding, it is often necessary to use a large external force to wait for it to solidify in order to achieve a good adhesion effect. However, the drying speed of hot melt adhesive is slow, which greatly increases the complexity of its operation. Although using a conventional hair dryer to blow directly can indeed speed up the drying speed of hot melt adhesive, because the wind force is too strong, it is easy to cause uneven solidification inside the hot melt adhesive. Therefore, a hot air device for drying hot melt adhesive is needed. Utility Model Content

[0003] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures specifically pointed out in the description and the drawings of the description.

[0004] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a hot air device for drying hot melt adhesive, which has the advantages of uniform drying and labor saving.

[0005] The utility model provides a hot air device for hot melt adhesive drying, comprising two blasting columns and an air outlet rod. The air outlet rod is vertically connected to the two blasting columns, a plurality of air outlets are arranged on the side wall of the air outlet rod, an air guide roll is arranged above the air outlet rod, the air guide roll comprises a rotating roller and a film wound around the rotating roller, one end of the rotating roller is rotatably connected to one of the blasting columns, the other end of the rotating roller passes through the other blasting column and is connected to a connecting rod, the connecting rod is rotated to make the rotating roller roll up the film, the free end of the film is connected to a frame member, and when the film is unfolded, the frame member supports the free end of the film.

[0006] In some embodiments, a shaping plate is provided at the free end of the film, and the frame member is rotatably connected to the left and right ends of the shaping plate. There are two frame members, and the two frame members are rotatably connected at the connection with the shaping plate.

[0007] In some embodiments, the blower column includes a shell, a negative pressure fan blade, a rotating motor and a heating plate. The bottom ring of the shell is provided with a plurality of air inlets. The negative pressure fan blade is arranged in the shell and is located between the air inlet and the air outlet rod. The rotating motor is arranged at the top of the shell and is coaxially connected to the negative pressure fan blade. The heating plate is arranged at the connection between the air outlet rod and the shell.

[0008] In some embodiments, the heating plate includes a heating net and a frame, the heating net is arranged in the frame, and the heating plate is connected to an external circuit to achieve heating.

[0009] In some embodiments, a support base is provided at the bottom of the shell, and the support base is rotatably connected to the bottom of the negative pressure fan blade.

[0010] By adopting the above technical solution, the beneficial effects of the utility model are:

[0011] The utility model forms an independently standing air outlet device by arranging two air blowing columns to connect an air outlet rod, thereby reducing manual clamping intervention; utilizing the side wall air outlet of the air outlet rod to cooperate with the film to form a hot air flow parallel to the surface of the point that needs to be dried, and the parallel hot air flow brings more stable and continuous temperature changes, thereby avoiding the situation where the hot melt adhesive surface solidifies too quickly due to direct hot air blowing.

[0012] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

[0013] Undoubtedly, these and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiments described with reference to various figures and drawings.

[0014] In order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, one or several preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the drawings, the same reference numerals are used for the same components and the drawings are schematic and not necessarily drawn to scale.

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one or several embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on such drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of a hot air device for drying hot melt adhesive according to the utility model;

[0019] Figure 2This is a diagram of the overall structure and usage state of a hot air device for hot melt adhesive drying according to the utility model;

[0020] Figure 3 This is a cross-sectional view of the internal structure of the blast column of a hot air device for drying hot melt adhesive according to the utility model;

[0021] Figure 4 This is a schematic diagram of the heating plate structure of a hot air device for hot melt adhesive drying according to the utility model;

[0022] Description of main reference numerals:

[0023] 1. Blowing column; 11. Shell; 111. Air inlet; 112. Support seat; 12. Negative pressure fan blade; 13. Rotating motor; 14. Heating plate; 141. Heating net; 142. Frame; 2. Air outlet rod; 21. Air outlet; 3. Air guide roll; 31. Rotating roller; 32. Film; 33. Connecting rod; 34. Forming plate; 4. Frame member. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model, but not to limit the utility model.

[0025] Reference Figure 1-4The utility model provides a hot air device for hot melt adhesive drying, comprising two blast columns 1 and an air outlet rod 2. The blast column 1 comprises a shell 11, a negative pressure fan blade 12, a rotating motor 13 and a heating plate 14. The bottom of the shell 11 is provided with a plurality of air inlets 111, the negative pressure fan blade 12 is arranged in the shell 11 and is located between the air inlet 111 and the air outlet rod 2, the rotating motor 13 is arranged at the top of the shell 11 and is coaxially connected with the negative pressure fan blade 12, and the bottom of the shell 11 is provided with a support seat 112, and the support seat 112 is rotatably connected with the bottom of the negative pressure fan blade 12 to ensure the rotation strength of the negative pressure fan blade 12. The negative pressure fan blade 12 rotates to transmit the wind from the air inlet 111 to the air outlet rod 2 and passes through the heating plate 14. The air outlet rod 2 vertically connects the two blast columns 1, and the side wall of the air outlet rod 2 is provided with a plurality of air outlets 21. The heating plate 14 is arranged at the connection between the air outlet rod 2 and the housing 11. The heating plate 14 includes a heating net 141 and a frame 142. The heating net 141 is arranged in the frame 142. The heating plate 14 uses an electric heating net and is connected to an external circuit to achieve heating. An air guide roll 3 is arranged above the air outlet rod 2. The air guide roll 3 includes a rotating roller 31 and a film 32 wound around the rotating roller 31. One end of the rotating roller 31 is rotatably connected to one of the blast columns 1. The other end of the rotating roller 31 passes through another blast column 1 and is connected to a connecting rod 33. Rotating the connecting rod 33 causes the rotating roller 31 to roll up the film 32. The free end of the film 32 is connected to a frame member 4, and a shaping plate 34 is provided at the free end of the film 32. The frame member 4 is rotatably connected to the left and right ends of the shaping plate 34. There are two frame members 4, and the two frame members 4 are rotatably connected at the connection with the shaping plate 34. The two frame members 4 are rotated to form a triangular structure. If necessary, a heavy object can be placed on the frame member 4 to improve stability. When the film 32 is unfolded, the frame member 4 supports the free end of the film 32.

[0026] Working principle: During use, place the hot air device on the side that needs to be dried. After the hot melt adhesive is melted and fixed, pull the film 32 to cover the upper area and fix it with the frame member 4, then start the negative pressure fan blade 12 to make the air outlet rod 2 blow out hot air to dry the surface of the hot melt adhesive.

[0027] It should be understood that the embodiments disclosed in the present invention are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features understood by ordinary technicians in the relevant field. It should also be understood that the terms used herein are only used for the purpose of describing specific embodiments and are not meant to be limiting.

[0028] The "embodiment" mentioned in the specification means that the specific features or characteristics described in conjunction with the embodiment are included in at least one embodiment of the utility model. Therefore, the phrases or "embodiment" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0029] In addition, the described features or characteristics may be combined in one or more embodiments in any other suitable manner. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the utility model. However, those skilled in the relevant art will understand that the utility model can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.

Claims

1. A hot air device for drying hot melt adhesive, characterized in that: It includes two blowing columns and an air outlet rod, which vertically connects the two blowing columns. The side wall of the air outlet rod is provided with a plurality of air outlets. An air guide roll is provided above the air outlet rod. The air guide roll includes a rotating roller and a film wound around the rotating roller. One end of the rotating roller is rotatably connected to one of the blowing columns, and the other end of the rotating roller passes through the other blowing column and is connected to a connecting rod. The connecting rod is rotated to make the rotating roller roll up the film. The free end of the film is connected to a frame member. When the film is unfolded, the frame member supports the free end of the film.

2. The hot air device for drying hot melt adhesive according to claim 1, characterized in that: The free end of the film is provided with a shaping plate, and the frame member is rotatably connected to the left and right ends of the shaping plate. There are two frame members, and the two frame members are rotatably connected at the connection with the shaping plate.

3. The hot air device for drying hot melt adhesive according to claim 1, characterized in that: The blast column comprises a shell, negative pressure blades, a rotating motor and a heating plate. The bottom ring of the shell is provided with a plurality of air inlets. The negative pressure blades are arranged in the shell and are located between the air inlets and the air outlet rod. The rotating motor is arranged at the top of the shell and is coaxially connected with the negative pressure blades. The heating plate is arranged at the connection between the air outlet rod and the shell.

4. The hot air device for drying hot melt adhesive according to claim 3, characterized in that: The heating plate comprises a heating net and a frame, wherein the heating net is arranged in the frame, and the heating plate is connected to an external circuit to realize heating.

5. The hot air device for drying hot melt adhesive according to claim 3, characterized in that: A support seat is provided at the bottom of the shell, and the support seat is rotatably connected to the bottom of the negative pressure fan blade.

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