A pipe heating device

Abstract

The application discloses a pipe heating device, which belongs to the technical field of pipe heating equipment and comprises a plurality of infrared lamp tube heating devices and infrared ceramic heating devices arranged in sequence in a straight line. The infrared lamp tube heating device comprises a box body one, a heating cylinder one arranged in the box body one, infrared heating pipes arranged in a ring shape on the inner side of the heating cylinder one and a plurality of thermocouples arranged in a ring shape on the heating cylinder. The infrared ceramic heating device comprises a box body two, a heating cylinder two arranged in the box body two and ceramic heating plates arranged in a ring shape on the inner side of the heating cylinder two. A supporting mechanism is arranged on the two sides of the box body one and the box body two. The application combines the plurality of infrared lamp tube heating devices and the infrared ceramic heating devices to heat the pipe multiple times, fully utilizes the characteristics that the infrared lamp tube heating device can be heated quickly and the infrared ceramic heating device can keep the temperature constant and stable, and heats the pipe in the later period, so that the pipe can be heated through and the product quality is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe heating equipment, in particular to a pipe heating device. BACKGROUND

[0002] Plastic is a common material and is ubiquitous in people's daily life. According to different manufacturing processes, plastic can be divided into two types: raw plastic and cooked plastic. Raw plastic refers to plastic with low degree of purification and poor performance in the production process, including polyethylene, polypropylene, polystyrene, etc. Although it has certain plasticity and toughness, it may have undesirable properties, such as easy to crack, low heat resistance, etc. Cooked plastic refers to plastic that has been processed, added with additives, and physically or chemically modified, and its performance is more stable and its application range is wider. Therefore, it is necessary to change raw plastic into cooked plastic. Heating method is a common method for processing raw plastic into cooked plastic at present, and its principle is that the molecular chain of raw plastic can be broken by heating, thereby improving the performance of the plastic. This method is suitable for high-temperature plastics such as polystyrene, etc.

[0003] Most of the existing heating devices use a single infrared heating tube as a heating element to heat the pipe. Due to the size limitation, it is difficult to ensure that the heating of the pipe is hot and transparent, thereby affecting the quality of the pipe. SUMMARY

[0004] To solve the above problems, the present application adopts the following technical scheme.

[0005] A pipe heating device, comprising, a plurality of infrared lamp heating devices and infrared ceramic heating devices arranged in a straight line in sequence,

[0006] The infrared lamp heating device comprises a support one, a box one is arranged on the upper part of the support one, an inlet one and an outlet one are arranged on the left and right sides of the box one respectively, a heating cylinder one is arranged inside the box one, infrared heating pipes are arranged in a ring shape on the inner side of the heating cylinder one, a plurality of installation holes one are arranged through the front and back sides of the box one, a blower is arranged in the installation hole one, a plurality of thermocouples are arranged in a ring shape on the heating cylinder one, and a plurality of infrared temperature measurement probes are arranged in a ring shape outside the outlet.

[0007] The infrared ceramic heating device comprises a support two, a box two is arranged on the upper part of the support two, an inlet two and an outlet two are arranged on the left and right sides of the box two respectively, a heating cylinder two is arranged inside the box two, a plurality of groups of ceramic heating plates are arranged in a ring shape on the inner side of the heating cylinder two, each group of ceramic heating plates comprises a plurality of ceramic heating plates arranged in a straight line along the extension direction of the heating cylinder two, a thermocouple is integrally arranged on the ceramic heating plate at the middle position of each group, and a plurality of infrared temperature measurement probes are arranged in a ring shape outside the outlet two.

[0008] Supporting mechanisms are arranged on both sides of the box one and the box two.

[0009] As preferred, the supporting mechanism comprises a base connected with the support one or the support two, a through hole one arranged in the middle of the base, a through hole two symmetrically arranged in front of and behind the through hole one, a threaded rod slidingly arranged in the through hole one, a guide rod slidingly arranged in the through hole two, a rotating shaft support arranged at the top of the threaded rod and the two guide rods, a guide wheel rotatably arranged in the rotating shaft support, and a limiting nut arranged above the base.

[0010] As preferred, the guide wheel is a double-cone structure symmetrically arranged, and the small ends of the two conical halves are opposite.

[0011] As preferred, the supporting mechanism further comprises a slide rail mechanism comprising a guide rail, and the bottom of the support one and the support two are both provided with a roller rolling in the guide rail.

[0012] As preferred, the guide rail is a U-shaped structure, and a plurality of inverted eight-shaped insertion slots are linearly arranged on the two side walls of the guide rail and penetrate through the top of the side wall.

[0013] As preferred, the box one comprises a half one and a half two symmetrically arranged in front and back, the top of the half one and the half two are connected through a quick lock, the front side of the half one is rotatably provided with an access door one, the bottom of the access door one is connected with the support one through a hinge, the top of the access door one is connected with the half one through a bolt, the rear side of the half two is rotatably provided with an access door two, the bottom of the access door two is connected with the support one through a hinge, and the top of the access door two is connected with the half two through a bolt.

[0014] As preferred, the top of the access door one and the access door two is provided with a handle.

[0015] As preferred, the box two comprises a half three and a half four symmetrically arranged in front and back, the top of the half three and the half four are connected through a quick lock, the front side of the half three is rotatably provided with an access door three, the bottom of the access door three is connected with the support two through a hinge, the top of the access door three is connected with the half three through a bolt, the rear side of the half four is rotatably provided with an access door four, the bottom of the access door four is connected with the support two through a hinge, and the top of the access door four is connected with the half four through a bolt.

[0016] As preferred, the access door three and the access door four are provided with a plurality of heat dissipation holes.

[0017] Compared with the prior art, the present application has the beneficial effects that:

[0018] One, the present application is through setting up multiple infrared lamp heating device and infrared ceramic heating device combination mode, multiple heating of pipe, and make full use of the characteristics of the external lamp heating device temperature rise fast, heat transfer directly of pipe for early heating, using the characteristics of the infrared ceramic heating device temperature constant and stable, for the late heating of pipe, so as to ensure that the pipe can be hot, ensure the quality of the product.

[0019] Two, the present application is through multiple position setting multiple thermocouple, can detect the temperature change of each position in the heating process, so as to ensure the quality of the product processing.

[0020] Three, the present application box one and box two are quick release structure, convenient for maintenance.

[0021] Four, the present application is provided with heat collecting cover and exhaust fan in the discharge port, the hot gas at the discharge port can be removed in time, forming a rapid air flow, so that the temperature of the upper and lower part of the pipe at the discharge port is consistent, at the same time, the outlet end forms a low pressure area, so that the air in the outer box flows from the inlet to the outlet, so as to ensure the air temperature around the pipe outside the discharge port is consistent, ensure the processing quality. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is the overall structure of the present application schematic diagram;

[0023] Figure 2 is Figure 1 A-A section view;

[0024] Figure 3 is Figure 1 A local schematic diagram;

[0025] Figure 4 is the structure of the heating cylinder two schematic diagram of the present application;

[0026] Figure 5 is the structure of the present application support mechanism schematic diagram;

[0027] Figure 6 is the front view of the box one of the present application;

[0028] Figure 7 is the rear view of the box one of the present application;

[0029] Figure 8 is the top view of the box one of the present application;

[0030] Figure 9 is the front view of the box two of the present application;

[0031] Figure 10 is the rear view of the box two of the present application;

[0032] Figure 11 Figure 2 is a top view of the box of the present application.

[0033] In the figure: 1, infrared lamp heating device; 2, infrared ceramic heating device; 3, thermocouple; 4, support mechanism; 5, slide rail mechanism; 6, infrared temperature measurement probe; 1-1, bracket one; 1-2, box one; 1-3, feeding port one; 1-4, discharging port one; 1-5, heating cylinder one; 1-6, infrared heating tube; 1-7, mounting hole one; 1-8, blower; 1-9, heat collecting cover; 1-10, exhaust pipe; 1-11, exhaust fan; 1-12, cylindrical protective net; 2-1, bracket two; 2-2, box two; 2-3, feeding port two; 2-4, discharging port two; 2-5, heating cylinder two; 2-6, ceramic heating plate; 4-1, base; 4-2, through hole one; 4-3, through hole two; 4-4, threaded rod; 4-5, guide rod; 4-6, rotating shaft bracket; 4-7, guide wheel; 4-8, limit nut; 5-1, guide rail; 5-2, roller; 5-3, slot; 5-4, plug; 1-21, half one; 1-22, half two; 1-23, access door one; 1-24, access door two; 1-25, handle; 2-21, half three; 2-22, half four; 2-23, access door three; 2-24, access door four; 2-25, heat dissipation hole. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0037] like Figures 1-11 As shown, in this embodiment, a pipe heating device includes two infrared lamp heating devices 1 and an infrared ceramic heating device 2 arranged in a straight line.

[0038] In this embodiment, the infrared lamp heating device 1 includes a bracket 1-1, a box 1-2 is provided on the upper part of the bracket 1-1, a feed port 1-3 and a discharge port 1-4 are provided on the left and right sides of the box 1-2, a heating cylinder 1-5 is provided inside the box 1-2, an infrared heating tube 1-6 is provided in a ring shape inside the heating cylinder 1-5, three mounting holes 1-7 are respectively provided on the front and back sides of the box 1-2, and a hair dryer 1-8 is provided in the mounting hole 1-7. , four thermocouples 3 are arranged in a ring on the heating cylinder 1-5, four infrared temperature measuring probes 6 are arranged in a ring on the outside of the discharge port 1-4, a heat collecting cover 1-9 is provided on the outer wall of the box body 1-2 above the discharge port 1-4, an exhaust pipe 1-10 is provided on the heat collecting cover 1-9, an exhaust fan 1-11 is provided on the top of the box body 1-2, and the air inlet end of the exhaust fan 1-11 is connected to the exhaust pipe 1-10, and a cylindrical protective net 1-12 is also coaxially provided inside the heating cylinder 1-5;

[0039] In this embodiment, the infrared ceramic heating device 2 includes a bracket 2-1, a box 2-2 is provided on the upper part of the bracket 2-1, a feed port 2-3 and a discharge port 2-4 are respectively provided on the left and right sides of the box 1-2, a heating cylinder 2-5 is provided inside the box 2-2, twelve groups of ceramic heating plates 2-6 are arranged in a ring inside the heating cylinder 2-5, each group of ceramic heating plates 2-6 includes a plurality of ceramic heating plates 2-6 arranged in a straight line along the extension direction of the heating cylinder 2-5, a thermocouple 3 is integrated on the ceramic heating plate 2-6 in the middle position of each group, and twelve infrared temperature measuring probes 6 are arranged in a ring outside the discharge port 2-4;

[0040] The supporting mechanism 4 is provided with six pieces, which are respectively arranged on both sides of the box body 1-2 and the box body 2-2.

[0041] In order to facilitate the support and movement of the pipe, in the embodiment, the support mechanism 4 comprises a base 4-1 connected with the bracket one 1-1 or the bracket two 2-1, a through hole one 4-2 is arranged in the middle of the base 4-1, a through hole two 4-3 is symmetrically arranged on the front and back sides of the through hole one 4-2, a threaded rod 4-4 is slidably arranged in the through hole one 4-2, a guide rod 4-5 is slidably arranged in the through hole two 4-3, a rotating shaft bracket 4-6 is arranged at the top of the threaded rod 4-4 and the two guide rods 4-5, a guide wheel 4-7 is rotatably arranged in the rotating shaft bracket 4-6, and a limiting nut 4-8 is arranged above the threaded rod 4-4.

[0042] In order to adapt to the profile of the pipe, the guide wheel 4-7 is a double-cone structure arranged symmetrically, and the small ends of the two conical halves are opposite.

[0043] In order to facilitate the adjustment of the setting position of the infrared lamp tube heating device 1 and the infrared ceramic heating device 2, the embodiment further comprises a sliding rail mechanism 5, the sliding rail mechanism 5 comprises a guide rail 5-1, and the bracket one 1-1 and the bracket two 2-1 are provided with rollers 5-2 at the bottom, and the rollers 5-2 roll in the guide rail 5-1.

[0044] In order to facilitate the limiting of the infrared lamp tube heating device 1 and the infrared ceramic heating device 2, the guide rail 5-1 is a U-shaped structure, a plurality of inverted eight-shaped insertion slots 5-3 are linearly arranged on the two side walls of the guide rail 5-1, the insertion slots 5-3 penetrate through the top of the side wall, and in use, the insertion plates 5-4 are inserted into the insertion slots 5-3, so that the rollers 5-2 are limited by the upper ends of the insertion plates 5-4.

[0045] In the embodiment, the box one 1-2 comprises a half one 1-21 and a half two 1-22 arranged symmetrically in front and back, the half one 1-21 and the half two 1-22 are connected through quick locks at the top, a maintenance door one 1-23 is rotatably arranged at the front side of the half one 1-21, the bottom of the maintenance door one 1-23 is connected with the bracket one 1-1 through a hinge, the top of the maintenance door one 1-23 is connected with the half one 1-21 through a bolt, a maintenance door two 1-24 is rotatably arranged at the rear side of the half two 1-22, the bottom of the maintenance door two 1-24 is connected with the bracket one 1-1 through a hinge, and the top of the maintenance door two 1-24 is connected with the half two 1-22 through a bolt.

[0046] In the embodiment, the top of the maintenance door one 1-23 and the maintenance door two 1-24 is provided with a handle 1-25.

[0047] In the embodiment, the box 2-2 comprises half 2-21 and half 2-22 which are symmetrically arranged, the top of the half 2-21 and the half 2-22 are connected by quick buckles, the front side of the half 2-21 is rotatably provided with a maintenance door 2-23, the bottom of the maintenance door 2-23 is connected with the support 2-1 by a hinge, the top of the maintenance door 2-23 is connected with the half 2-21 by bolts, the rear side of the half 2-22 is rotatably provided with a maintenance door 2-24, the bottom of the maintenance door 2-24 is connected with the support 2-1 by a hinge, and the top of the maintenance door 2-24 is connected with the half 2-22 by bolts.

[0048] In the embodiment, a plurality of heat dissipation holes 2-25 are arranged on the maintenance door 2-23 and the maintenance door 2-24.

[0049] The working principle of the above technical scheme is as follows:

[0050] In use, first, the height of the guide wheel 4-7 is adjusted by adjusting the position of the limiting nut 4-8, so that the pipe material is located at the center position of the heating pipe, and second, the operation instruction is sent to the PLC controller by operating the control panel on the control console, and the infrared heating pipe 1-6 and the ceramic heating plate 2-6 are heated by the PLC controller to preheat the heating cylinder one 1-5 and the heating cylinder two 2-5. The infrared lamp heating device 1, in the heating process, the thermocouple 3 transmits the detected temperature to the PLC controller, and the temperature change in the heating cylinder one 1-5 is observed in real time through the display screen on the control console, when the temperature reaches the preset temperature, the PLC controller controls the blower 1-8 and the exhaust fan to start, and the temperature is constant by stabilizing the internal and external air pressure through the fan, so that the temperature of each part of the heating cylinder one 1-5 is consistent. When the infrared ceramic heating device 2 is heated, the temperature is accurately set and the excess heat flow is reasonably processed to achieve accurate heating. After the infrared lamp heating device 1 and the infrared ceramic heating device 2 complete the preheating, the pipe material is sent from one end of the outermost inlet one 1-3 and then heated through the two heating cylinders one 1-5 and one heating cylinder two 2-5. The temperature of the pipe material is monitored in real time by the infrared temperature probe arranged at the outlet one 1-4 and the outlet two 2-4, to ensure that the temperature reaches the set value.

[0051] Compared with the prior art, the beneficial effects of the present application are as follows:

[0052] Firstly, the present application combines multiple infrared lamp heating devices 1 and infrared ceramic heating devices 2 to heat the pipe material multiple times, and fully utilizes the characteristics of the infrared lamp heating device, such as fast heating and direct heat transfer, to preheat the pipe material, and utilizes the characteristics of the infrared ceramic heating device 2, such as stable temperature, to heat the pipe material in the later stage, thereby ensuring that the pipe material is heated through and ensuring the product quality.

[0053] Secondly, the present application sets multiple thermocouples 3 at multiple positions, which can detect the temperature change of the pipe at each position in the heating process, thereby ensuring the processing quality of the product.

[0054] Thirdly, the box body one 1-2 and the box body two 2-2 are quick release structures, which are convenient for maintenance.

[0055] Fourthly, the present application sets a heat collecting cover 1-9 and an exhaust fan 1-11 at the discharge port, which can timely exhaust the hot air at the discharge port, form rapid air flow, thereby keeping the temperature of the upper and lower parts of the pipe at the discharge port consistent, at the same time, form a low pressure area at the outlet end, make the air in the outer box flow from the inlet port to the discharge port, thereby ensuring the air temperature around the pipe outside the discharge port consistent, and ensuring the processing quality.

[0056] The above is only the preferred embodiment of the present application; however, the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical solution and the improvement concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A pipe heating device, characterized in that: It comprises a plurality of infrared lamp heating devices (1) and infrared ceramic heating devices (2) arranged in a straight line. The infrared lamp heating device (1) comprises a bracket (1-1), a box (1-2) is provided on the upper part of the bracket (1-1), a feed port (1-3) and a discharge port (1-4) are provided on the left and right sides of the box (1-2), a heating cylinder (1-5) is provided inside the box (1-2), an infrared heating tube (1-6) is provided in a ring shape on the inner side of the heating cylinder (1-5), a plurality of mounting holes (1-7) are provided through the front and rear sides of the box (1-2), a hair dryer (1-8) is provided in the mounting hole (1-7), a plurality of thermocouples (3) are arranged in a ring shape on the upper part of the heating cylinder (1-5), and a plurality of infrared temperature measuring probes (6) are arranged in a ring shape on the outer side of the discharge port; The infrared ceramic heating device (2) comprises a second bracket (2-1), a second box (2-2) is provided on the upper part of the second bracket (2-1), a second feed port (2-3) and a second discharge port (2-4) are provided on the left and right sides of the first box (1-2), a second heating cylinder (2-5) is provided inside the second box (2-2), a plurality of groups of ceramic heating plates (2-6) are provided in a ring shape on the inner side of the second heating cylinder (2-5), each group of ceramic heating plates (2-6) comprises a plurality of ceramic heating plates (2-6) arranged in a straight line along the extension direction of the second heating cylinder (2-5), a thermocouple (3) is integrated on the ceramic heating plate (2-6) at the middle position of each group, and a plurality of infrared temperature measuring probes (6) are provided in a ring shape on the outer side of the second discharge port (2-4); A plurality of support mechanisms (4) are provided, which are respectively arranged on both sides of the first box (1-2) and the second box (2-2).

2. A pipe heating device according to claim 1, characterized in that: The support mechanism (4) comprises a base (4-1), the base (4-1) being connected to bracket one (1-1) or bracket two (2-1), a through hole one (4-2) being provided in the middle of the base (4-1), a through hole two (4-3) being symmetrically provided on the front and rear sides of the through hole one (4-2), a threaded rod (4-4) being slidably provided in the through hole one (4-2), a guide rod (4-5) being slidably provided in the through hole two (4-3), a rotating shaft bracket (4-6) being provided at the top ends of the threaded rod (4-4) and the two guide rods (4-5), a guide wheel (4-7) being provided in the rotating shaft bracket (4-6) for rotation via a rotating shaft, and a limiting nut (4-8) being provided on the threaded rod (4-4) above the base (4-1).

3. The pipe heating device according to claim 2, characterized in that: The guide wheels (4-7) are symmetrically arranged double-cone structures, with the small ends of the two conical halves facing each other.

4. The pipe heating device according to claim 1, characterized in that: It also includes a slide rail mechanism (5), which includes a guide rail (5-1). The bottoms of bracket one (1-1) and bracket two (2-1) are both provided with rollers (5-2), and the rollers (5-2) roll in the guide rail (5-1).

5. The pipe heating device according to claim 4, characterized in that: The guide rail (5-1) is a U-shaped structure, and a plurality of inverted figure-eight-shaped slots (5-3) are arranged in a straight line on both side walls of the guide rail (5-1), and the slots (5-3) pass through the top of the side wall.

6. The pipe heating device according to claim 1, characterized in that: The box body 1 (1-2) includes a half part 1 (1-21) and a half part 2 (1-22) symmetrically arranged in the front and rear directions. The tops of the half part 1 (1-21) and the half part 2 (1-22) are connected by a quick lock. The front side of the half part 1 (1-21) is rotatably provided with an inspection door 1 (1-23). ​​The bottom of the inspection door 1 (1-23) is connected to the bracket 1 (1-1) by a hinge. The top of the inspection door 1 (1-23) is connected to the half part 1 (1-21) by a bolt. The rear side of the half part 2 (1-22) is rotatably provided with an inspection door 2 (1-24). The bottom of the inspection door 2 (1-24) is connected to the bracket 1 (1-1) by a hinge. The top of the inspection door 2 (1-24) is connected to the half part 2 (1-22) by a bolt.

7. The pipe heating device according to claim 6, characterized in that: The tops of the first inspection door (1-23) and the second inspection door (1-24) are provided with handles (1-25).

8. The pipe heating device according to claim 1, characterized in that: The box body 2 (2-2) comprises a half part 3 (2-21) and a half part 4 (2-22) which are symmetrically arranged in the front and rear directions. The tops of the half part 3 (2-21) and the half part 4 (2-22) are connected by a quick lock. The front side of the half part 3 (2-21) is rotatably provided with an inspection door 3 (2-23). ​​The bottom of the inspection door 3 (2-23) is connected to the bracket 2 (2-1) by a hinge. The top of the inspection door 3 (2-23) is connected to the half part 3 (2-21) by a bolt. The rear side of the half part 4 (2-22) is rotatably provided with an inspection door 4 (2-24). The bottom of the inspection door 4 (2-24) is connected to the bracket 2 (2-1) by a hinge. The top of the inspection door 4 (2-24) is connected to the half part 4 (2-22) by a bolt.

9. The pipe heating device according to claim 8, characterized in that: A plurality of heat dissipation holes (2-25) are provided on the inspection door three (2-23) and the inspection door four (2-24).

Images