Stirring device for hot melt adhesive production

Abstract

The utility model discloses a stirring device for hot melt adhesive production, which belongs to the technical field of hot melt adhesive production, and comprises a tank body and an upper cover arranged at the opening of the tank body, a heating layer is arranged inside the barrel wall of the tank body, an air exchange mechanism comprises a bowl-shaped air exchange part, the air exchange part is movably connected with the inner wall of the upper cover, an inner ring cavity is arranged in the inner wall in the middle of the air exchange part, and the inner ring cavity is communicated with the heating layer. The inner wall of the bottom surface of the inner ring cavity is provided with ventilation holes communicated with the inner ring cavity, the outer wall of the outer ring of the ventilation part is internally provided with an outer ring cavity, the bottom surface and the inner wall of the ventilation part are provided with ventilation holes communicated with the outer ring cavity, fresh air enters the stirring chamber through the ventilation holes, and at the moment, the ventilation holes communicated with the outer ring cavity start to exhaust waste gas around the interior of the stirring chamber; waste gas enters the outer ring cavity through the ventilation holes, so that the waste gas in the stirring chamber can be always replaced by fresh air, and the problems that the waste gas in the stirring chamber cannot be completely extracted and the waste gas in the stirring chamber can be attached to the inner wall of the stirring chamber are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot melt adhesive production, and in particular relates to a stirring device for hot melt adhesive production. Background Art

[0002] Hot melt adhesive is a material that is currently used in large quantities. This material has strong adhesion and can meet the requirements of cold and heat resistance. Hot melt adhesive is also divided into several components. The fume generated in the production of hot melt adhesive is oily waste gas, which is a mixture of fume and waste gas. It is unreasonable to use only activated carbon adsorption process now.

[0003] There is a utility model patent with the authorization announcement number CN210700119U, which is named as a reaction kettle for hot melt adhesive production. It proposes to install an exhaust gas collection kettle, which can collect the exhaust gas generated during the hot melt adhesive reaction, so that the staff can uniformly treat the exhaust gas, prevent it from being directly discharged into the air, causing air pollution, and ensure the safety of the working environment;

[0004] However, the method of collecting exhaust gas is to extract and collect the air in the mixing chamber after the mixing is completed. However, the exhaust method will cause negative pressure in the mixing chamber, and the exhaust gas in the mixing chamber cannot be completely extracted. The oil fume generated in the production of hot melt adhesive is oily exhaust gas, which is a mixture of oil fume and exhaust gas. Because the exhaust gas in the mixing chamber cannot be completely extracted, the oil fume will adhere to the inner wall of the mixing equipment, which will affect the product quality over a long period of time. Utility Model Content

[0005] The purpose of the utility model is to provide a stirring device for hot melt adhesive production to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: comprising a tank body and an upper cover arranged at the opening of the tank body, wherein the bottom end of the tank body is provided with a discharge port, the top end of the upper cover is provided with a feed port, and further comprising a stirring mechanism and a ventilation mechanism arranged on the upper cover;

[0007] The stirring mechanism includes a motor arranged in the middle of the top of the upper cover and a stirring rod arranged inside the tank body, the stirring rod passes through the upper cover and is connected to the output end of the motor, and a plurality of stirring blades are arranged on the stirring rod;

[0008] The ventilation mechanism includes a bowl-shaped ventilation component, which is movably connected to the inner wall of the upper cover, an inner circle cavity is provided in the inner wall in the middle of the ventilation component, and ventilation holes connected to the inner circle cavity are provided on the bottom surface of the inner circle cavity, an outer circle cavity is provided in the outer wall of the outer circle of the ventilation component, and ventilation holes connected to the outer circle cavity are provided on the bottom surface and inner wall of the ventilation component.

[0009] It should be noted in the solution that an assembly hole is opened in the center of the top of the ventilation component, and the stirring rod is fixed in the assembly hole.

[0010] It should be noted in the scheme that the middle part of the top surface of the ventilation component is rotatably connected to an inner turntable with an open bottom end, the inner turntable is connected to the inner circle cavity, and the top end of the inner turntable is fixedly connected to an air outlet, the end of the air outlet passes through the upper cover and is fixedly connected to an air inlet pipe, and the outer periphery of the top surface of the ventilation component is rotatably connected to an outer turntable with an open bottom end, the outer turntable is connected to the outer circle cavity, and the top end of the outer turntable is fixedly connected to an air intake port, the end of the air intake port passes through the upper cover and is fixedly connected to an exhaust filter.

[0011] It should be noted in the solution that a heating pipe is provided on the outer wall of the tank body, one end of the heating pipe is fixedly connected to the air inlet pipe, and the other end of the heating pipe is fixedly connected to a filter.

[0012] It is further worth noting that the heating tube is spiral-shaped.

[0013] Compared with the prior art, the stirring device for hot melt adhesive production provided by the utility model has at least the following beneficial effects:

[0014] (1) Through the ventilation mechanism, fresh air enters the inner circle cavity, and the air in the inner circle cavity enters the mixing chamber through the ventilation holes. The incoming air moves downward from the middle part of the top of the mixing chamber, so that the exhaust gas in the mixing chamber diffuses to the surroundings. At this time, the ventilation holes connected to the outer circle cavity begin to extract the exhaust gas around the mixing chamber. The exhaust gas enters the outer circle cavity through the ventilation holes, and the exhaust gas in the outer circle cavity is discharged, so that the exhaust gas in the mixing chamber can be replaced by fresh air all the time, which solves the problem that the exhaust gas in the mixing chamber cannot be completely extracted and the exhaust gas in the mixing chamber will adhere to the inner wall of the mixing chamber.

[0015] (2) Through the setting of the heating tube, the air entering the mixing chamber first enters the filter to filter out impurities, and then enters the heating tube. The air is heated by the heating layer in the cylinder wall of the tank body during the process of being transported from the heating tube to the air inlet pipe, so that the air entering the mixing chamber has the same temperature as the air in the mixing chamber, thereby reducing the impact on the heating efficiency of the hot melt adhesive in the mixing chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model product;

[0017] Figure 2 It is a schematic diagram of the structure of an embodiment of the utility model product;

[0018] Figure 3 It is a schematic diagram of the top view of the structure of the utility model product;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model product;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the ventilation component of the utility model product;

[0021] Figure 6 It is a schematic diagram of the cross-sectional structure of the ventilation component of the utility model product.

[0022] In the figure: 1. tank body; 2. upper cover; 3. feed port; 4. stirring rod; 5. stirring blade; 6. discharge port; 7. ventilation part; 8. outlet pipe; 9. motor; 10 inlet pipe; 11. heating pipe; 12. exhaust gas filter; 13. filter; 14. outer turntable; 15. air inlet; 16. inner turntable; 17. inner ring cavity; 18. ventilation hole; 19 outlet; 20 outer ring cavity; 21 heating layer. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 , a stirring device for hot melt adhesive production, comprising a tank body 1 and an upper cover 2 arranged at the opening of the tank body 1, wherein the bottom end of the tank body 1 is provided with a discharge port 6, the top end of the upper cover 2 is provided with a feed port 3, and further comprising a stirring mechanism and a ventilation mechanism arranged on the upper cover 2;

[0025] The stirring mechanism comprises a motor 9 disposed in the middle of the top of the upper cover 2 and a stirring rod 4 disposed inside the tank body 1. The stirring rod 4 penetrates the upper cover 2 and is connected to the output end of the motor 9. The stirring rod 4 is provided with a plurality of stirring blades 5.

[0026] By setting the stirring mechanism, when the raw material enters the tank body 1 through the feed port 3, the motor 9 is started while the raw material is heated, the motor 9 drives the stirring rod 4 to rotate, and the stirring rod 4 drives the stirring blade 5 to stir the hot melt adhesive raw material in the tank body 1.

[0027] Further, refer to Figure 4-6As shown, it is worth noting that the ventilation mechanism includes a bowl-shaped ventilation member 7, which is movably connected to the inner wall of the upper cover 2, and an inner ring cavity 17 is provided in the inner wall in the middle of the ventilation member 7, and ventilation holes 18 connected to the inner ring cavity 17 are provided on the bottom surface of the inner ring cavity 17, and an outer ring cavity 20 is provided in the outer wall of the outer ring of the ventilation member 7, and ventilation holes 18 connected to the outer ring cavity 20 are provided on the bottom surface and inner wall of the ventilation member 7.

[0028] Through the ventilation mechanism, fresh air enters the inner circle chamber 17, and the air in the inner circle chamber 17 enters the mixing chamber through the ventilation holes 18. The incoming air moves downward from the middle part of the top of the mixing chamber, so that the exhaust gas in the mixing chamber diffuses to the surroundings. At this time, the ventilation holes 18 connected to the outer circle chamber 20 begin to extract the exhaust gas around the mixing chamber, and the exhaust gas enters the outer circle chamber 20 through the ventilation holes 18, and the exhaust gas in the outer circle chamber 20 is discharged, so that the exhaust gas in the mixing chamber can be replaced by fresh air all the time, which solves the problem that the exhaust gas in the mixing chamber cannot be completely extracted and the exhaust gas in the mixing chamber will adhere to the inner wall of the mixing chamber.

[0029] Further, refer to Figure 4 As shown, it is worth noting that a mounting hole is provided at the center of the top of the ventilation member 7, and the stirring rod 4 is fixed in the mounting hole;

[0030] Further, refer to Figure 3-6 The middle part of the top surface of the ventilation member 7 is rotatably connected with an inner turntable 16 with an open bottom end, the inner turntable 16 is connected with an inner ring cavity 17, and the top end of the inner turntable 16 is fixedly connected with an air outlet 19, the end of the air outlet 19 passes through the upper cover 2 and is fixedly connected with an air inlet pipe 10, the outer periphery of the top surface of the ventilation member 7 is rotatably connected with an outer turntable 14 with an open bottom end, the outer turntable 14 is connected with an outer ring cavity 20, and the top end of the outer turntable 14 is fixedly connected with an air inlet 15, the end of the air inlet 15 passes through the upper cover 2 and is fixedly connected with an air outlet pipe 8;

[0031] Through the setting of the outer turntable 14 and the inner turntable 16, fresh air enters the inner circle cavity 17 through the air inlet pipe 10 and the air outlet 19, and the air in the inner circle cavity 17 enters the mixing chamber through the ventilation holes 18. At the same time, the exhaust gas enters the outer circle cavity 20 through the ventilation holes 18 on the outer circle cavity 20. The exhaust gas in the outer circle cavity 20 is discharged into the exhaust gas filter 12 through the air intake port 15 and the air outlet pipe 8. The stirring rod 4 will drive the ventilation element 7 to rotate. When the ventilation element 7 rotates evenly, the air input from the air outlet 19 can be evenly supplied to each ventilation hole 18, and the air intake port 15 can evenly extract air from each ventilation hole 18 on the outer circle cavity 20 when extracting the exhaust gas.

[0032] However, from a practical point of view, the exhaust gas in the mixing chamber can be replaced by fresh air through the setting of the ventilation mechanism. The temperature of the air entering the mixing chamber through the air inlet is relatively low. The long-term low-temperature air entering the mixing chamber will affect the heating efficiency of the hot melt adhesive in the mixing chamber, resulting in energy waste.

[0033] For this purpose, refer to Figure 1-4 A heating layer 21 is provided inside the barrel wall of the tank body 1, and a heating pipe 11 is provided on the outer barrel wall of the tank body 1. One end of the heating pipe 11 is fixedly connected to the air inlet pipe 10, and the other end of the heating pipe 11 is fixedly connected to the filter 13;

[0034] The heating tube 11 is spiral-shaped;

[0035] Through the setting of the heating tube 11, the air entering the mixing chamber first enters the filter 13 to filter out impurities. When the air enters the heating tube 11, the air is heated by the heating layer 21 in the wall of the tank body 1 during the process of being transported from the heating tube 11 to the air inlet pipe 10, so that the air entering the mixing chamber has the same temperature as the air in the mixing chamber, reducing the impact on the heating efficiency of the hot melt adhesive in the mixing chamber.

[0036] The above is an introduction to a stirring device 4 for hot melt adhesive production provided by the utility model. In the introduction, specific preferred embodiments are used to illustrate the principles and implementation methods of the utility model. These embodiments are only used to help understand the principles and core ideas of the utility model. It should be pointed out that for ordinary technicians in this field, without departing from the design ideas of the utility model, the implementation plans in the above embodiments can be further combined or replaced, and the utility model can be improved and modified in a number of ways. These improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A stirring device for hot melt adhesive production, comprising a tank body (1) and an upper cover (2) arranged at the opening of the tank body (1), the bottom end of the tank body (1) is provided with a discharge port (6), the top end of the upper cover (2) is provided with a feed port (3), and the interior of the barrel wall of the tank body (1) is provided with a heating layer (21), characterized in that: A stirring mechanism and a ventilation mechanism are arranged on the upper cover (2); The stirring mechanism comprises a motor (9) arranged in the middle of the top of the upper cover (2) and a stirring rod (4) arranged inside the tank body (1); the stirring rod (4) penetrates the inner wall of the upper cover (2) and is connected to the output end of the motor (9); and a plurality of stirring blades (5) are arranged on the stirring rod (4); The ventilation mechanism comprises a bowl-shaped ventilation member (7), the ventilation member (7) being movably connected to the inner wall of the upper cover (2), an inner ring cavity (17) being provided in the inner wall in the middle of the ventilation member (7), a ventilation hole (18) communicating with the inner ring cavity (17) being provided on the inner wall of the bottom surface of the inner ring cavity (17), an outer ring cavity (20) being provided in the outer wall of the outer ring of the ventilation member (7), and ventilation holes (18) communicating with the outer ring cavity (20) being provided on the bottom surface and the inner wall of the ventilation member (7).

2. The stirring device for hot melt adhesive production according to claim 1, characterized in that: An assembly hole is provided in the center of the top of the ventilation component (7), and the stirring rod (4) is fixed in the assembly hole.

3. The stirring device for hot melt adhesive production according to claim 2, characterized in that: The middle part of the top surface of the ventilation component (7) is rotatably connected to an inner turntable (16) with an open bottom end, the inner turntable (16) is connected to the inner ring cavity (17), and the top end of the inner turntable (16) is fixedly connected to an air outlet (19), the end of the air outlet (19) passes through the upper cover (2) and is fixedly connected to an air inlet pipe (10), the outer periphery of the top surface of the ventilation component (7) is rotatably connected to an outer turntable (14) with an open bottom end, the outer turntable (14) is connected to the outer ring cavity (20), and the top end of the outer turntable (14) is fixedly connected to an air intake port (15), the end of the air intake port (15) passes through the upper cover (2) and is fixedly connected to an exhaust gas filter (12).

4. The stirring device for hot melt adhesive production according to claim 1, characterized in that: A heating pipe (11) is provided on the outer barrel wall of the tank body (1), one end of the heating pipe (11) is fixedly connected to the air intake pipe (10), and the other end of the heating pipe (11) is fixedly connected to a filter (13).

5. The stirring device for hot melt adhesive production according to claim 4, characterized in that: The heating tube (11) is in a spiral shape.

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