Hot melt adhesive waste recycling device

Abstract

The utility model relates to the technical field of hot melt adhesive recycling equipment, and discloses a hot melt adhesive waste recycling device which comprises a heating box, a box cover is arranged above the heating box, the heating box is composed of an inner shell and an outer shell, the inner shell is arranged on the inner side of the outer shell, a metal hose is arranged between the heating box and the box cover, and the metal hose is connected with the heating box. A valve is arranged on the surface of the metal hose, and a resistance wire heater is arranged on the outer side face of the heating box. According to the waste material recycling device, waste materials are added into the heating box through the feeding pipe, then the resistance wire heater is started, heating oil between the inner shell and the outer shell is heated, then the heating oil is pumped to the box cover and the main mandrel under the action of the centrifugal pump and finally flows back to the position between the inner shell and the outer shell, and in the flowing process, the waste materials are recycled. The hot melt adhesive is heated in the inner direction and the outer direction, the heat transfer time is shortened, the temperature rising speed of the hot melt adhesive waste is increased, the heating period is effectively shortened, and therefore the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of hot melt adhesive recycling equipment, and in particular to a hot melt adhesive waste recycling and reuse device. Background Technology

[0002] Hot melt adhesive is a type of plastic adhesive whose physical state changes with temperature within a certain range, while its chemical properties remain unchanged. It is non-toxic and odorless, and is considered an environmentally friendly chemical product. It is favored because it is a solid, which makes it easy to package, transport, and store, and because of its simple production process, high added value, long lifespan, and high strength.

[0003] The prior art discloses a hot melt adhesive reactor with oil heating, with application number CN202222518350.X, which relates to the field of hot melt adhesive production technology. This utility model can heat and keep the hot melt adhesive in the discharge pipe to ensure product quality.

[0004] The above-mentioned utility model adopts an external heating method. Since the heat needs to be transferred to the material through the chamber wall, the thermal resistance is large, resulting in low heating efficiency and high energy consumption. Especially for high-viscosity hot melt adhesive waste, the heat transfer is slow and uneven heating is likely to occur, which affects the recycling effect of the waste. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a device for recycling and reusing hot melt adhesive waste.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a hot melt adhesive waste recycling device, including a heating box, a box cover provided on the top of the heating box, the heating box being composed of an inner shell and an outer shell, an inner shell being provided on the inner side of the outer shell, a metal hose being provided between the heating box and the box cover, and a valve being provided on the surface of the metal hose, a resistance wire heater being provided on the outer side of the heating box, the heating end of the resistance wire heater penetrating and extending between the inner shell and the outer shell, and heating oil being filled between the inner shell and the outer shell. A centrifugal pump is installed on the outer side of the heating box. One end of the centrifugal pump is connected to the heating box via an oil inlet, and the other end of the centrifugal pump is connected to the box cover and the main shaft via a split pipe. A stirring shaft is connected to the side surface of the main shaft, and both the main shaft and the stirring shaft are hollow. The main shaft is connected to the inner shell. A first gear is installed on the surface of the main shaft, and the first gear and a second gear are meshed together. The second gear is installed at the output end of the servo motor. A feed pipe is installed on the side surface of the heating box, and a discharge pipe is installed on the lower surface of the heating box.

[0007] By adopting the above technical solution, waste material is added into the heating chamber through the feed pipe. Then, the resistance wire heater is started to heat the heating oil between the inner and outer shells. After that, it is pumped to the chamber cover and the main shaft by the action of the centrifugal pump, and finally flows back between the inner and outer shells. During the flow process, the hot melt adhesive is heated in two directions, reducing the heat transfer time, accelerating the heating speed of the hot melt adhesive waste, effectively shortening the heating cycle, and thus improving production efficiency.

[0008] Furthermore, a thermally conductive ceramic sheet is connected to the inner side of the inner shell, and an inner plate is provided on the outer side of the thermally conductive ceramic sheet. Multiple inner plates are provided, and the multiple inner plates are distributed in a ring array on the surface of the main shaft. A sealing gasket is provided between adjacent inner plates.

[0009] By adopting the above technical solution, some materials will remain on the inner wall of the heating box during the hot melt adhesive waste recycling process. By disassembling the inner plate, it is convenient to thoroughly clean it, avoid material residue from polluting the subsequent recycling process, and help improve the quality of recycled hot melt adhesive.

[0010] Furthermore, both the servo motor and the centrifugal pump have heat insulation pads on their lower surfaces.

[0011] By adopting the above technical solution, the main effect is to provide heat insulation, thereby preventing the heat from the reuse device from being transferred to the servo motor and centrifugal pump, which could cause damage to the servo motor and centrifugal pump due to excessive temperature.

[0012] Furthermore, the surface of the stirring shaft is provided with stirring blades.

[0013] By adopting the above technical solution, the contact area between the hot melt adhesive and the hot melt adhesive is increased, thereby enhancing the flow state of the hot melt adhesive and improving the rate and efficiency of heat transfer.

[0014] Furthermore, the lower surface of the heating box is provided with support legs.

[0015] By adopting the above technical solution, the overall height of the heating box is increased, thus preventing ground moisture from corroding the heating box.

[0016] Furthermore, a controller is provided on the side surface of the heating box.

[0017] By adopting the above technical solution, the control switch on the controller can be used to control the electrical equipment of the recycling device. The staff only needs to press the control switch on the controller, thereby improving the convenience of use for the staff.

[0018] In summary, this utility model has the following beneficial effects:

[0019] 1. In this application, waste material is added into the heating box through the feed pipe. Then, the resistance wire heater is started to heat the heating oil between the inner shell and the outer shell. Then, under the action of the centrifugal pump, it is pumped to the box cover and the main shaft respectively, and finally flows back to the space between the inner shell and the outer shell. During the flow process, the hot melt adhesive is heated in two directions, reducing the heat transfer time, accelerating the heating speed of the hot melt adhesive waste, effectively shortening the heating cycle, and thus improving production efficiency.

[0020] 2. In this application, during the hot melt adhesive waste recycling process, some material will remain on the inner wall of the heating box. By disassembling the inner plate, it is convenient to thoroughly clean it, avoid material residue from polluting the subsequent recycling process, and help improve the quality of recycled hot melt adhesive. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the main shaft and its connection structure according to an embodiment of the present invention;

[0023] Figure 3 This is a top view of the inner shell structure of an embodiment of the present invention.

[0024] In the diagram: 1. Heating chamber; 2. Inner shell; 3. Outer shell; 4. Box cover; 5. Metal hose; 6. Resistance wire heater; 7. Main shaft; 8. Stirring shaft; 9. Stirring blade; 10. First gear; 11. Second gear; 12. Servo motor; 13. Centrifugal pump; 14. Feed pipe; 15. Discharge pipe; 16. Thermally conductive ceramic plate; 17. Inner plate; 18. Support leg; 19. Heat insulation pad; 20. Controller. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] like Figure 1-3As shown in the embodiment of this application, a device for recycling and reusing hot melt adhesive waste is disclosed, including a heating box 1, a box cover 4 on the top of the heating box 1, the heating box 1 is composed of an inner shell 2 and an outer shell 3, the inner shell 2 is arranged inside the outer shell 3, a metal hose 5 is arranged between the heating box 1 and the box cover 4, and a valve is arranged on the surface of the metal hose 5, a resistance wire heater 6 is arranged on the outer side of the heating box 1, the heating end of the resistance wire heater 6 passes through and extends between the inner shell 2 and the outer shell 3, and heating oil is filled between the inner shell 2 and the outer shell 3, a centrifugal pump 13 is arranged on the outer side of the heating box 1, one end of the centrifugal pump 13 is connected to the heating box 1 through an oil inlet, and the other end of the centrifugal pump 13 is connected to the box cover 4 and the main shaft 7 through a diverter pipe, respectively, and a stirring shaft 8 is connected to the side surface of the main shaft 7, and both the main shaft 7 and the stirring shaft 8 are The heating chamber adopts a hollow structure, with the main shaft 7 and inner shell 2 connected through it. A first gear 10 is provided on the surface of the main shaft 7, and the first gear 10 and second gear 11 are meshed together. The second gear 11 is installed at the output end of the servo motor 12. A feed pipe 14 is provided on the side surface of the heating chamber 1, and a discharge pipe 15 is provided on the lower surface of the heating chamber 1. Waste material is added into the heating chamber 1 through the feed pipe 14. Then, the resistance wire heater 6 is started to heat the heating oil between the inner shell 2 and the outer shell 3. Then, under the action of the centrifugal pump 13, it is pumped to the cover 4 and the main shaft 7 respectively, and finally flows back to the space between the inner shell 2 and the outer shell 3. During the flow process, the hot melt adhesive is heated in two directions, reducing the heat transfer time, accelerating the heating speed of the hot melt adhesive waste, effectively shortening the heating cycle, and thus improving production efficiency.

[0027] A heat-conducting ceramic plate 16 is connected to the inner side of the inner shell 2. An inner plate 17 is provided on the outer side of the heat-conducting ceramic plate 16. Multiple inner plates 17 are provided and distributed in a ring array on the surface of the main shaft 7. A sealing gasket is provided between adjacent inner plates 17. During the hot melt adhesive waste recycling process, some material will remain on the inner wall of the heating box 1. By disassembling the inner plate 17, it is convenient to thoroughly clean it, avoid material residue from contaminating the subsequent recycling process, and help improve the quality of recycled hot melt adhesive.

[0028] The lower surfaces of the servo motor 12 and the centrifugal pump 13 are both provided with heat insulation pads 19, which mainly serve to insulate the heat and prevent the heat from the reuse device from being transferred to the servo motor 12 and the centrifugal pump 13, which could cause the servo motor 12 and the centrifugal pump 13 to be damaged due to excessive temperature.

[0029] The surface of the stirring shaft 8 is provided with stirring blades 9, which increases the contact area with the hot melt adhesive, thereby enhancing the flow state of the hot melt adhesive and improving the rate and efficiency of heat transfer.

[0030] The lower surface of the heating box 1 is provided with support legs 18. The support legs 18 are used to increase the overall height of the heating box 1 and prevent ground moisture from corroding the heating box 1.

[0031] A controller 20 is installed on the side surface of the heating box 1. The control switch on the controller 20 controls the electrical equipment of the recycling device. The operator only needs to press the control switch on the controller 20, which improves the convenience of operation for the operator.

[0032] The operating principle of the hot melt adhesive waste recycling device in this embodiment is as follows: the waste is added into the heating box 1 through the feed pipe 14, and then the resistance wire heater 6 is started to heat the heating oil between the inner shell 2 and the outer shell 3. Then, under the action of the centrifugal pump 13, it is pumped to the box cover 4 and the main shaft 7 respectively, and finally flows back to the space between the inner shell 2 and the outer shell 3. During the flow process, the hot melt adhesive is heated in two directions, reducing the heat transfer time, accelerating the heating speed of the hot melt adhesive waste, effectively shortening the heating cycle, and thus improving production efficiency. During the hot melt adhesive waste recycling process, some material will remain on the inner wall of the heating box 1. By disassembling the inner plate 17, it is convenient to thoroughly clean it, avoiding material residue from polluting the subsequent recycling process and helping to improve the quality of the recycled hot melt adhesive.

[0033] The above description is merely a preferred embodiment 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 protected. 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 the protection scope of this utility model.

Claims

1. A device for recycling and reusing hot melt adhesive waste, comprising a heating box (1), characterized in that: The heating box (1) is provided with a box cover (4) on top. The heating box (1) is composed of an inner shell (2) and an outer shell (3). The inner shell (2) is provided on the inner side of the outer shell (3). A metal hose (5) is provided between the heating box (1) and the box cover (4), and a valve is provided on the surface of the metal hose (5). A resistance wire heater (6) is provided on the outer side of the heating box (1). The heating end of the resistance wire heater (6) extends through and between the inner shell (2) and the outer shell (3). Heating oil is filled between the inner shell (2) and the outer shell (3). A centrifugal pump (13) is provided on the outer side of the heating box (1). One end of the centrifugal pump (13) is connected to the oil inlet. The centrifugal pump (13) is connected to the heating box (1) and the other end of the centrifugal pump (13) is connected to the box cover (4) and the main shaft (7) respectively through the diversion pipe. The side surface of the main shaft (7) is connected to the stirring shaft (8), and both the main shaft (7) and the stirring shaft (8) adopt a hollow structure. The main shaft (7) is connected to the inner shell (2) through. The surface of the main shaft (7) is provided with a first gear (10), and the first gear (10) and the second gear (11) are meshed. The second gear (11) is installed at the output end of the servo motor (12). The side surface of the heating box (1) is provided with a feed pipe (14), and the lower surface of the heating box (1) is provided with a discharge pipe (15).

2. The hot melt adhesive waste recycling device according to claim 1, characterized in that: The inner shell (2) is connected to a heat-conducting ceramic sheet (16) on its inner side. The outer side of the heat-conducting ceramic sheet (16) is provided with an inner plate (17). There are multiple inner plates (17), which are arranged in a ring array on the surface of the main shaft (7). A sealing gasket is provided between adjacent inner plates (17).

3. The hot melt adhesive waste recycling device according to claim 2, characterized in that: The lower surfaces of the servo motor (12) and the centrifugal pump (13) are both provided with heat insulation pads (19).

4. The hot melt adhesive waste recycling device according to claim 3, characterized in that: The surface of the stirring shaft (8) is provided with stirring blades (9).

5. The hot melt adhesive waste recycling device according to claim 4, characterized in that: The lower surface of the heating box (1) is provided with support legs (18).

6. The hot melt adhesive waste recycling device according to claim 5, characterized in that: A controller (20) is provided on the side surface of the heating box (1).

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