Feeding heating structure

Abstract

The feeding and heating structure comprises a stirring tank, a material pipe, a first valve and a heat-conducting oil circulating system, the material pipe is installed at the top of the stirring tank, a feeding pipeline and an interlayer are arranged in the material pipe, the feeding pipeline is communicated with the interior of the stirring tank, the interlayer is located on the periphery of the feeding pipeline, the interlayer is communicated with the heat conduction oil circulating system, and the heat conduction oil circulating system is used for heating the inner wall of the feeding pipeline; the first valve is installed on the material pipe, located at the communication position of the material pipe and the stirring tank and used for controlling connection and disconnection of the feeding pipeline. According to the feeding heating structure provided by the utility model, the problem that in the prior art, when hot melt glue is produced, glue gas generated by stirring of a stirring tank is adhered to the inner wall of a material pipe, and glue scale is formed, so that the material pipe is blocked is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot melt adhesive production, in particular to a feeding and heating structure. Background Art

[0002] Hot melt adhesive is a plastic adhesive whose physical state changes with temperature within a certain temperature range, while its chemical properties remain unchanged. It is non-toxic and odorless, making it an environmentally friendly chemical product. Because the product itself is solid, it is easy to package, transport, and store, and is solvent-free, pollution-free, and non-toxic. It is also highly favored due to its simple production process, high added value, high bonding strength, and fast speed.

[0003] In the prior art, when producing hot melt adhesive, the hot melt adhesive raw materials are generally put into a mixing tank through a material pipe for high-temperature melting and mixing. However, during the stirring process, the adhesive gas generated will adhere to the inner wall of the material pipe and form adhesive scale, which can easily clog the material pipe. Utility Model Content

[0004] The purpose of the utility model is to provide a feeding and heating structure to solve the problem in the prior art of producing hot melt adhesive that the adhesive gas generated by the stirring tank adheres to the inner wall of the material pipe and forms adhesive scale, causing the material pipe to be blocked.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A feeding and heating structure includes a stirring tank, a material pipe, a first valve and a heat transfer oil circulation system;

[0007] The material pipe is installed on the top of the mixing tank, and a feeding pipe and an interlayer are provided inside the material pipe. The feeding pipe is connected to the interior of the mixing tank, and the interlayer is located on the outer periphery of the feeding pipe. The interlayer is connected to the thermal oil circulation system, and the thermal oil circulation system is used to heat the inner wall of the feeding pipe;

[0008] The first valve is installed on the material pipe. The first valve is located at the connection point between the material pipe and the mixing tank. The first valve is used to control the on-off of the feeding pipeline.

[0009] Furthermore, the heat transfer oil circulation system includes a main input pipeline, a main output pipeline, a heating device and a high-temperature circulation oil pump;

[0010] One end of the interlayer is connected to one end of the main input pipeline, the other end of the interlayer is connected to one end of the main output pipeline, the other end of the main input pipeline is connected to one end of the heating device, the other end of the heating device is connected to one end of the high-temperature circulating oil pump, the heating device is used to heat the thermal oil, the other end of the high-temperature circulating oil pump is connected to the other end of the main output pipeline, and the high-temperature circulating oil pump is used to circulate the thermal oil.

[0011] Specifically, the interlayer includes an upper interlayer and a lower interlayer, the upper interlayer is located above the lower interlayer, and the upper interlayer and the lower interlayer are not directly connected to each other;

[0012] The main input pipeline includes a first input branch pipe and a second input branch pipe, one end of the first input branch pipe is connected to one end of the upper interlayer, and the other end of the first input branch pipe is connected to the heating device, and one end of the second input branch pipe is connected to one end of the lower interlayer, and the other end of the second input branch pipe is connected to the heating device;

[0013] The main output pipeline includes a first output branch pipe and a second output branch pipe, one end of the first output branch pipe is connected to the other end of the upper interlayer, and the other end of the first output branch pipe is connected to the high-temperature circulating oil pump, one end of the second output branch pipe is connected to the other end of the lower interlayer, and the other end of the second output branch pipe is connected to the high-temperature circulating oil pump.

[0014] Preferably, the heat transfer oil circulation system further includes a high-level tank, one end of which is connected to the main input pipeline, and the other end of which is connected to the main output pipeline.

[0015] In some embodiments, the heat transfer oil circulation system further includes a cooling device, a second valve and a third valve, one end of the cooling device is connected to the high-temperature circulating oil pump, the other end of the cooling device is connected to the main output pipeline, the second valve is arranged between the cooling device and the high-temperature circulating oil pump, and the third valve is arranged between the heating device and the high-temperature circulating oil pump.

[0016] Furthermore, the heating device includes a heating box and a heating tube;

[0017] One end of the heating box is connected to the main input pipeline, the other end of the heating box is connected to the high-temperature circulating oil pump, and the heating pipe is installed inside the heating box.

[0018] Specifically, the heating device further includes a solid-state relay and a temperature sensor;

[0019] The temperature sensor is arranged in the interlayer, and the temperature sensor is used to detect the temperature of the heat transfer oil in the interlayer. The solid-state relay is installed in the heating box, and the solid-state relay is connected to the temperature sensor and the heating tube respectively. The Su Pushu solid-state relay is used to control the power on or off of the heating tube.

[0020] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0021] Through the mixing tank, material pipe, feeding pipe, interlayer, first valve and heat transfer oil circulation system, during the material racking process, the heat transfer oil can heat the inner wall of the feeding pipe, which can not only prevent the hot melt adhesive raw materials from adhering to the inner wall of the feeding pipe, but also melt the adhesive scale already formed on the inner wall of the feeding pipe and drop it into the mixing tank. Furthermore, closing the first valve before the mixing tank is operated can prevent the adhesive gas from flowing back and forming adhesive scale on the inner wall of the feeding pipe when the mixing tank is working, thereby avoiding the phenomenon of material pipe blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of a feeding and heating structure of one embodiment of the present utility model;

[0023] Figure 2 This is a structural diagram of a heat transfer oil circulation system in one embodiment of the present invention;

[0024] Figure 3 This is a schematic structural diagram of the first input branch, the second input branch, the first output branch, and the second output branch of one embodiment of the present utility model;

[0025] Figure 4 This is a schematic structural diagram of the second valve and the third valve of one embodiment of the present utility model;

[0026] Figure 5 This is a schematic structural diagram of a heating device according to one embodiment of the present invention;

[0027] Among them: stirring tank 1, material pipe 2, feeding pipe 21, interlayer 22, upper interlayer 221, lower interlayer 222, first valve 3, thermal oil circulation system 4, main input pipeline 41, first input branch 411, second input branch 412, main output pipeline 42, first output branch 421, second output branch 422, heating device 43, heating box 431, heating pipe 432, solid-state relay 433, high-temperature circulating oil pump 44, high-level tank 45, cooling device 46, second valve 47, third valve 48. DETAILED DESCRIPTION

[0028] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", "inner end", "outer end", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish and describe features, without distinction of order or importance. In the description of the present invention, unless otherwise specified, "multiple" means more than two.

[0030] In one embodiment of the present invention, Figure 1-5As shown, a feeding and heating structure includes a stirring tank 1, a material pipe 2, a first valve 3 and a heat transfer oil circulation system 4; the material pipe 2 is installed on the top of the stirring tank 1, and a feeding pipe 21 and an interlayer 22 are provided inside the material pipe 2, the feeding pipe 21 is connected to the interior of the stirring tank 1, the interlayer 22 is located on the outer periphery of the feeding pipe 21, and the interlayer 22 is connected to the heat transfer oil circulation system 4, and the heat transfer oil circulation system 4 is used to heat the inner wall of the feeding pipe 21; the first valve 3 is installed on the material pipe 2, the first valve 3 is located at the connection point between the material pipe 2 and the stirring tank 1, and the first valve 3 is used to control the on and off of the feeding pipe 21. In this embodiment, the first valve 3 is connected to the stirring drive device in the stirring tank 1. When the hot melt adhesive raw material is added, the first valve 3 is opened to connect the feeding pipe 21 inside the material pipe 2 with the interior of the stirring tank 1. Then, the hot melt adhesive raw material is added to the stirring tank 1 through the feeding pipe inside the material pipe 2. At the same time as the hot melt adhesive raw material is added, the heat transfer oil circulation system 4 starts to work. Specifically, the heat transfer oil circulation system 4 allows the high-temperature heat transfer oil to flow through the interlayer 22. Through heat transfer, the high-temperature heat transfer oil heats the inner wall of the feeding pipe 21, causing the hot melt adhesive raw material adhered to the inner wall of the feeding pipe 21 to melt and fall into the stirring tank 1 below. After the feeding is completed, close the first valve 3 and start the mixing tank 1 to work; the present application uses the mixing tank 1, the material pipe 2, the feeding pipe 21, the interlayer 22, the first valve 3 and the heat transfer oil circulation system 4, so that the heat transfer oil can heat the inner wall of the feeding pipe 21 during the material feeding process, which can not only prevent the hot melt adhesive raw material from adhering to the inner wall of the feeding pipe 21, but also make the adhesive scale formed on the inner wall of the feeding pipe 21 melt and fall into the mixing tank 1. Furthermore, closing the first valve 3 before the mixing tank 1 works can prevent the adhesive gas from flowing back when the mixing tank 1 is working and forming adhesive scale on the inner wall of the feeding pipe 21, thereby avoiding the phenomenon of clogging of the material pipe 2.

[0031] like Figure 2As shown, the thermal oil circulation system 4 includes a main input pipe 41, a main output pipe 42, a heating device 43, and a high-temperature circulating oil pump 44. One end of the interlayer 22 is connected to one end of the main input pipe 41, and the other end of the interlayer 22 is connected to one end of the main output pipe 42. The other end of the main input pipe 41 is connected to one end of the heating device 43, and the other end of the heating device 43 is connected to one end of the high-temperature circulating oil pump 44. The heating device 43 is used to heat the thermal oil. The other end of the high-temperature circulating oil pump 44 is connected to the other end of the main output pipe 42, and the high-temperature circulating oil pump 44 is used to circulate the thermal oil. In this embodiment, during operation, the high-temperature circulating oil pump 44 drives the thermal oil in the pipe to circulate, and the heating device 43 heats the thermal oil. The heated thermal oil enters one end of the interlayer 22 and transfers heat to the inner wall of the feed pipe 21. It then flows back to the high-temperature circulating oil pump 44 from the main output pipe 42 at the other end of the interlayer 22, which is convenient and fast.

[0032] like Figure 3 As shown, the interlayer 22 includes an upper interlayer 221 and a lower interlayer 222, the upper interlayer 221 is located above the lower interlayer 222, and the upper interlayer 221 and the lower interlayer 222 are not directly connected to each other; the main input pipeline 41 includes a first input branch pipe 411 and a second input branch pipe 412, one end of the first input branch pipe 411 is connected to one end of the upper interlayer 221, the other end of the first input branch pipe 411 is connected to the heating device 43, and one end of the second input branch pipe 412 is connected to the lower interlayer 2 22, and the other end of the second input branch pipe 412 is connected to the heating device 43. The main output pipeline 42 includes a first output branch pipe 421 and a second output branch pipe 422. One end of the first output branch pipe 421 is connected to the other end of the upper interlayer 221, and the other end of the first output branch pipe 421 is connected to the high-temperature circulating oil pump 44. One end of the second output branch pipe 422 is connected to the other end of the lower interlayer 222, and the other end of the second output branch pipe 422 is connected to the high-temperature circulating oil pump 44. In this embodiment, the other end of the first input branch pipe 411 and the other end of the second input branch pipe 412 are respectively connected to the output end of the heating device 43, and the other end of the first output branch pipe 421 and the other end of the second output branch pipe 422 are respectively connected to the output end of the high-temperature circulating oil pump 44. In this embodiment, the interlayer 22 is divided into the upper interlayer 221 and the lower interlayer 222 to avoid the interlayer space through which the heat transfer oil flows being too large, which would reduce the heating quality and heating efficiency.

[0033] like Figure 2-4As shown, the thermal oil circulation system 4 further includes a high-level tank 45, one end of which is connected to the main input pipeline 41, and the other end of which is connected to the main output pipeline 42. In this embodiment, the high-level tank 45 can not only replenish the thermal oil, but also discharge the gas in the pipeline when the thermal oil circulates. The two ends of the high-level tank 45 are respectively connected to the input end of the main input pipeline 41 and the output end of the main output pipeline 42. That is, the thermal oil from the heating device 43 enters one end of the high-level tank 45 and the main input pipeline 41 respectively, and the thermal oil that has absorbed heat flows out of the main output pipeline 42 and merges with the thermal oil flowing out of the other end of the high-level tank 45 before entering the high-temperature circulation pump 44.

[0034] like Figure 4 As shown, the thermal oil circulation system 4 also includes a cooling device 46, a second valve 47 and a third valve 48. One end of the cooling device 46 is connected to the high-temperature circulating oil pump 44, and the other end of the cooling device 46 is connected to the main output pipeline 41. The second valve 47 is arranged between the cooling device 46 and the high-temperature circulating oil pump 44, and the third valve 48 is arranged between the heating device 43 and the high-temperature circulating oil pump 44. In this embodiment, one end of the cooling device 46 is connected to the output end of the high-temperature circulating oil pump 44, and the other end of the cooling device 46 is connected to the input end of the main input pipe 41, and the second valve 47 is installed at the output end of the cooling device 46, and the third valve 48 is installed at the input end of the heating device 43. When heating is required, the third valve 48 is opened and the second valve 47 is closed to allow the heat transfer oil to pass through the heating device 43 for heating. When cooling is required, the third valve 48 is closed and the second valve 47 is opened to allow the heat transfer oil to pass through the cooling device 46 for cooling, thereby preventing the heat transfer oil from being overheated. It should be noted that the cooling device 46 is a prior art. Specifically, the two ends of the cooling water tank are connected to the high-temperature circulating oil pump 44 and the main output pipe 41 respectively. There are multiple circles of water pipes spiraled in the cooling water tank, and the tap water will take away the heat in the heat transfer oil.

[0035] like Figure 5 As shown, the heating device 43 includes a heating box 431 and a heating pipe 432; one end of the heating box 431 is connected to the main input pipe 41, and the other end of the heating box 431 is connected to the high-temperature circulating oil pump 44. The heating pipe 432 is installed inside the heating box 431. In this embodiment, there are three heating pipes 432, which are evenly arranged along the height of the heating box 431. The heating pipes 432 are specifically electric heating rods. When the thermal oil flows through the heating box 431, the heating pipes 432 heat the thermal oil, which is convenient, fast, and has high heating efficiency.

[0036] like Figure 5 As shown, the heating device 43 further includes a solid-state relay 433 and a temperature sensor; the temperature sensor is disposed in the interlayer 22 and is used to detect the temperature of the thermal oil in the interlayer 22. The solid-state relay 433 is mounted in the heating box 431 and is connected to the temperature sensor and the heating tube 432, respectively. The solid-state relay 433 is used to control the power on or off of the heating tube 432. In this embodiment, if the temperature of the thermal oil in the interlayer 22 is too high, the solid-state relay 433 will disconnect the heating tube 432 and stop heating. Otherwise, the solid-state relay 433 will keep the heating tube 432 powered on to continue heating.

[0037] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0038] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A feeding heating structure, characterized in that: It includes a mixing tank, a material pipe, a first valve and a heat transfer oil circulation system; The material pipe is installed on the top of the mixing tank, and a feeding pipe and an interlayer are provided inside the material pipe. The feeding pipe is connected to the interior of the mixing tank, and the interlayer is located on the outer periphery of the feeding pipe. The interlayer is connected to the thermal oil circulation system, and the thermal oil circulation system is used to heat the inner wall of the feeding pipe; The first valve is installed on the material pipe. The first valve is located at the connection point between the material pipe and the mixing tank. The first valve is used to control the on-off of the feeding pipeline.

2. A feeding and heating structure according to claim 1, characterized in that: The heat transfer oil circulation system includes a main input pipeline, a main output pipeline, a heating device and a high-temperature circulating oil pump; One end of the interlayer is connected to one end of the main input pipeline, the other end of the interlayer is connected to one end of the main output pipeline, the other end of the main input pipeline is connected to one end of the heating device, the other end of the heating device is connected to one end of the high-temperature circulating oil pump, the heating device is used to heat the thermal oil, the other end of the high-temperature circulating oil pump is connected to the other end of the main output pipeline, and the high-temperature circulating oil pump is used to circulate the thermal oil.

3. A feeding and heating structure according to claim 2, characterized in that: The interlayer includes an upper interlayer and a lower interlayer, the upper interlayer is located above the lower interlayer, and the upper interlayer and the lower interlayer are not directly connected to each other; The main input pipeline includes a first input branch pipe and a second input branch pipe, one end of the first input branch pipe is connected to one end of the upper interlayer, and the other end of the first input branch pipe is connected to the heating device, and one end of the second input branch pipe is connected to one end of the lower interlayer, and the other end of the second input branch pipe is connected to the heating device; The main output pipeline includes a first output branch pipe and a second output branch pipe, one end of the first output branch pipe is connected to the other end of the upper interlayer, and the other end of the first output branch pipe is connected to the high-temperature circulating oil pump, one end of the second output branch pipe is connected to the other end of the lower interlayer, and the other end of the second output branch pipe is connected to the high-temperature circulating oil pump.

4. The feeding and heating structure according to claim 2, characterized in that: The heat transfer oil circulation system further comprises a high-level tank, one end of which is connected to the main input pipeline, and the other end of which is connected to the main output pipeline.

5. The feeding and heating structure according to claim 4, characterized in that: The thermal oil circulation system also includes a cooling device, a second valve and a third valve. One end of the cooling device is connected to the high-temperature circulating oil pump, and the other end of the cooling device is connected to the main output pipeline. The second valve is arranged between the cooling device and the high-temperature circulating oil pump, and the third valve is arranged between the heating device and the high-temperature circulating oil pump.

6. The feeding and heating structure according to claim 2, characterized in that: The heating device includes a heating box and a heating tube; One end of the heating box is connected to the main input pipeline, the other end of the heating box is connected to the high-temperature circulating oil pump, and the heating pipe is installed inside the heating box.

7. The feeding and heating structure according to claim 6, characterized in that: The heating device also includes a solid-state relay and a temperature sensor; The temperature sensor is arranged in the interlayer, and the temperature sensor is used to detect the temperature of the heat transfer oil in the interlayer. The solid-state relay is installed in the heating box, and the solid-state relay is connected to the temperature sensor and the heating tube respectively. The Su Pushu solid-state relay is used to control the power on or off of the heating tube.

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