Box body structure for pipe infrared heating device with uniform heating function

Abstract

The utility model relates to the technical field of pipe heating equipment, and discloses a box body structure for a pipe infrared heating device, which is uniform in heating and comprises an outer box body and a heating cylinder, a feeding port and a discharging port are respectively arranged on two sides of the outer box body and are aligned, the heating cylinder is arranged in the outer box body, two ends of the heating cylinder respectively correspond to the feeding port and the discharging port, and the heating cylinder is arranged in the outer box body. The infrared heating pipes are annularly arranged on the inner side wall ring of the heating cylinder, first heat dissipation holes are formed in the side wall of the heating cylinder, a plurality of mounting holes are formed in the front side and the rear side of the outer box body in a penetrating mode, air blowers and heat collecting covers are arranged in the mounting holes, the heat collecting covers are arranged on the outer wall of the outer box body above the discharging port, and exhaust pipes are arranged on the heat collecting covers. An exhaust fan is arranged on the top of the outer box body, and the air inlet end of the exhaust fan is connected with an exhaust pipe. The infrared heating pipes are annularly distributed on the inner wall of the heating cylinder, and air in the heating cylinder is circulated by the aid of the blower, so that the periphery of the pipe is uniformly heated, and processing quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe heating equipment, in particular to a box structure for an infrared heating device for pipes with uniform heating. Background Technique

[0002] Plastic is a common material that is ubiquitous in people's daily lives. According to different manufacturing processes, plastics can be divided into raw plastics and processed plastics. Raw plastics refer to plastics with a relatively low purification degree and poor performance during the production process, including polyethylene, polypropylene, polystyrene, etc. Although they have certain plasticity and toughness, they may have poor properties such as being prone to brittle fracture and having low heat resistance. Processed plastics refer to plastics that have been processed by adding additives and undergoing physical or chemical modification, with more stable properties and a wider range of applications. Therefore, it is very necessary to transform raw plastics into processed plastics. The heating method is a commonly used method for processing raw plastics into processed plastics at present. Its principle is that by heating, the molecular chains in the raw plastics can be broken, thereby improving the properties of the plastics. This method is applicable to high-temperature plastics such as polystyrene.

[0003] Chinese Patent CN220163256 U discloses a multi-layer wound pipe infrared heating device, including a conveyor belt. The upper end surface of the middle part of the conveyor belt is fixedly installed with a heating cylinder. Above the conveyor belt, there is an infrared heating tube located inside the heating cylinder, and the infrared heating tubes are distributed in an arc shape above the inside of the heating cylinder. A protective cover is fixedly installed outside the infrared heating tube. Through the cooperation between the heating cylinder, the infrared heating tube, the air outlet component and the exhaust fan, by using the settings of the infrared heating tube and the air outlet component, the heating effect on the outer wall of the pipe is realized, and the problem of uneven heating on the surface of the pipe is effectively solved. The infrared heating tube and the air outlet component are respectively located on the upper and lower sides of the pipe to conduct convective heating on the pipe, so that the outer wall of the pipe is uniformly heated, thereby improving the heating effect of the pipe.

[0004] However, in the above technical solution, the infrared heating tubes are arranged above the heating cylinder in a semi-circular shape. This setting makes the upper part of the pipe receive not only the heating of hot air but also the heating of infrared light compared to the lower part, resulting in uneven heating of the upper and lower parts of the pipe. At the same time, at the outlet end of the conveyor belt, since the hot air flows upward, the air temperature at the upper part of the outlet section will be higher than the temperature below the pipe, which will also cause uneven heating of the pipe and affect the processing quality. Content of the Utility Model

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A box structure for an infrared heating device for pipes with uniform heating, comprising: an outer box, with a feed inlet and a discharge outlet respectively arranged on both sides of the outer box, the feed inlet and the discharge outlet are arranged in alignment, a heating cylinder, arranged inside the outer box, both ends of the heating cylinder respectively corresponding to the feed inlet and the discharge outlet, a plurality of infrared heating tubes, annularly arranged on the inner side wall of the heating cylinder, the side wall of the heating cylinder is provided with a first heat dissipation hole, a plurality of mounting holes are penetrated through the front and rear sides of the outer box, a blower is arranged in the mounting holes, a heat collecting cover, arranged on the outer wall of the outer box above the discharge outlet, a exhaust duct is arranged on the heat collecting cover, an exhaust fan is arranged on the top of the outer box, and the air inlet end of the exhaust fan is connected to the exhaust duct.

[0007] Preferably, a cylindrical protective net is also coaxially arranged inside the heating cylinder.

[0008] Preferably, the cylindrical protective net comprises a left half and a right half, and the left half and the right half are connected by a connecting bracket, and the connecting bracket is detachably connected to the heating cylinder.

[0009] Preferably, the feed inlet and the discharge outlet are circular.

[0010] Preferably, a plurality of heat dissipation holes are arranged on the outer box on the outer sides of the feed inlet and the discharge outlet.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] First, the inner wall of the heating cylinder of the present utility model is annularly distributed with infrared heating tubes, and at the same time, a blower is used to make the air inside the heating cylinder form a circulation, so that the circumference of the pipe is uniformly heated, ensuring the processing quality.

[0013] Second, the present utility model is provided with a heat collecting cover and an exhaust fan at the discharge outlet, which can timely draw away the hot air at the discharge outlet, forming a rapid air flow, so that the temperatures of the upper and lower parts of the pipe at the discharge outlet are kept consistent. At the same time, a low-pressure area is formed at the outlet end, so that the air inside the outer box flows from the feed inlet to the discharge outlet, thus also ensuring that the air temperatures around the pipe outside the discharge outlet are consistent, ensuring the processing quality.

[0014] Description of the Drawings

[0015] Figure 1 is a schematic side view structure diagram of the present utility model;

[0016] Figure 2 is a cross-sectional view of the outer box of the present utility model;

[0017] Figure 3 Figure 1 is the A-A cross-sectional view in

[0018] Figure 4 ​It is a schematic diagram of the partial structure of the protective net.

[0019] In the figure: 1. Outer box body; 2. Feed inlet; 3. Discharge outlet; 4. Heating cylinder; 5. Protective net; 5-1. Left half; 5-2. Right half; 5-3. Connecting bracket; 6. Heat dissipation holes; 7. Infrared heating tube; 8. Exhaust fan; 9. Mounting holes; 10. Blower; 11. Heat collecting cover; 12. Exhaust duct. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 thus should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment

[0023] As Figures 1-4 shown, in this embodiment, the present invention provides a box body structure for an infrared heating device for uniformly heating pipes, including an outer box body 1. Feed inlets 2 and discharge outlets 3 are respectively arranged on both sides of the outer box body 1, and the feed inlets 2 and the discharge outlets 3 are arranged in alignment. To meet the needs of pipe processing, the feed inlets 2 and the discharge outlets 3 are circular structures, and a heating cylinder 4 is arranged inside the outer box body 1, and both ends of the heating cylinder 4 respectively correspond to the feed inlet 2 and the discharge outlet 3.

[0024] In this embodiment, three mounting holes 9 are provided through the front and rear sides of the outer box body 1. The three mounting holes 9 are horizontally arranged. A hair dryer 10 is provided in the mounting hole 9. A heat collecting cover 11 is provided on the outer wall of the outer box body 1 above the discharge port 3. An exhaust duct 12 is provided on the heat collecting cover 11. An exhaust fan 8 is provided on the top of the outer box body 1. The intake end of the exhaust fan 8 is connected to the exhaust duct 12.

[0025] To prevent the pipe from directly contacting the infrared heating tube 7, a cylindrical protective net 5 is also coaxially provided inside the heating cylinder 4. The cylindrical protective net 5 includes a left half 5-1 and a right half 5-2. The left half 5-1 and the right half 5-2 are connected by a connecting bracket 5-3. The connecting bracket 5-3 and the heating cylinder 4 are detachably connected by bolts.

[0026] To facilitate the heat dissipation at both ends of the outer box body 1, a number of heat dissipation holes 6 are provided on the outer box body 1 outside the feed port 2 and the discharge port 3.

[0027] The working principle of the above technical solution is as follows:

[0028] During use, to prevent the hot air generated by the infrared heating tube 7 from accumulating on the top of the outer box body 1, causing the temperature on the top of the outer box body 1 to be higher than that of other parts, resulting in uneven heating of the pipe. Therefore, when heating, the hair dryers 10 on both sides of the outer box body 1 are turned on to make the air in the outer box body 1 circulate, so that the temperature of each part in the outer box body 1 remains the same, and the pipe is heated evenly. When the pipe is removed from the discharge port 3, since the hot air flows upward, a high-temperature area is formed above the discharge port 3, and a low-temperature area is formed below the discharge port 3 due to the replenishment of cold air, resulting in inconsistent temperatures up and down the pipe and uneven heat dissipation, which may affect the processing quality. Therefore, the exhaust fan 8 is started through the controller to timely discharge the hot air in the heat collecting cover 11, forming a rapid air flow, so that the temperatures up and down the pipe remain the same.

[0029] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0030] First, the inner wall of the heating cylinder 4 of the present utility model is annularly distributed with infrared heating tubes 7, and at the same time, the hair dryer 10 is used to make the air in the heating

[0031] cylinder 4 form a cycle, so that the circumference of the pipe is evenly heated, ensuring the processing quality.

[0032] Second, the present utility model is provided with a heat collecting cover 11 and an exhaust fan 8 at the discharge port 3, which can timely extract the hot air at the discharge port 3 to form a rapid air flow, so that the temperatures of the upper and lower parts of the pipe at the discharge port 3 are kept consistent. At the same time, a low-pressure area is formed at the outlet end, so that the air in the outer box flows from the feed port to the discharge port, thereby also ensuring that the air temperatures around the pipe outside the discharge port are consistent and guaranteeing the processing quality.

[0033] The above is only the preferred specific embodiment of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its improved concept, making equivalent replacements or changes, should be covered by the protection scope of the present utility model.

Claims

1. A box structure for an infrared heating device of pipes with uniform heating, characterized in that, including, an outer box body (1), a feed inlet (2) and a discharge outlet (3) are respectively arranged on two sides of the outer box body (1), and the feed inlet (2) and the discharge outlet (3) are arranged in alignment. a heating cylinder (4), which is arranged inside the outer box body (1), and two ends of the heating cylinder (4) respectively correspond to the feed inlet (2) and the discharge outlet (3). a plurality of infrared heating tubes (7), which are annularly arranged on the inner side wall of the heating cylinder (4), and a plurality of mounting holes (9) are penetrated through the front and rear sides of the outer box body (1), and a blower (10) is arranged in the mounting holes (9). a heat collecting cover (11), which is arranged on the outer wall of the outer box body (1) above the discharge outlet (3), a discharge air pipe (12) is arranged on the heat collecting cover (11), and an exhaust fan (8) is arranged on the top of the outer box body (1), and the air inlet end of the exhaust fan (8) is connected with the discharge air pipe (12).

2. The box structure for an infrared heating device for pipes with uniform heating according to claim 1, characterized in that, a cylindrical protective net (5) is also coaxially arranged inside the heating cylinder (4).

3. The box structure for an infrared heating device for pipes with uniform heating according to claim 2, characterized in that, the cylindrical protective net (5) includes a left half part (5-1) and a right half part (5-2), and the left half part (5-1) and the right half part (5-2) are connected by a connecting bracket (5-3), and the connecting bracket (5-3) is detachably connected with the heating cylinder (4).

4. The box structure for an infrared heating device for pipes with uniform heating according to claim 3, characterized in that, the feed inlet (2) and the discharge outlet (3) are circular.

5. The box structure for an infrared heating device for pipes with uniform heating according to claim 4, characterized in that, a plurality of heat dissipation holes (6) are arranged on the outer box body (1) outside the feed inlet (2) and the discharge outlet (3).

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