Hot air heating device for continuous fiber band reinforced composite pipe

Abstract

The invention discloses a hot air heating device for a continuous fiber band reinforced composite pipe, which comprises a high-pressure axial flow fan, a heating device shell, a heating core, a temperature measuring probe and an air outlet, the heating core is arranged in the heating device shell, and a connecting piece is arranged at the left end of the heating core and is used for fixing the heating core and connecting the high-pressure axial flow fan mounted at the rear end; the right end of the heating device shell is connected with an air outlet, a temperature measuring probe is arranged in the middle of the heating core and used for detecting the temperature of the heating core, and a temperature sensor is arranged at the air outlet of the heating device and used for detecting the temperature of the air outlet of the heating device. The device is reasonable in structure, easy to operate, capable of adjusting the air speed and temperature in real time, capable of continuously and safely heating an object and suitable for application and popularization.

Description

Technical Field

[0001] The invention relates to a hot air heating device, in particular to a hot air heating device for a continuous fiber strip reinforced composite pipe. Background Art

[0002] In the field of hot air heating technology, heating devices are required for continuous fiber strip winding and plastic pipe heating and bonding in composite pipe production.

[0003] Most of the existing heating methods use ceramic heating plates, infrared heating and other heating methods. The heating devices of the above methods occupy a large space, have low thermal penetration and low flexibility. It is urgently needed to provide a new heating device. Summary of the invention

[0004] In order to solve the problems of low thermal penetration and large size of the heating device, the present invention provides a hot air heating device for continuous fiber strip reinforced composite pipe, which can heat the product continuously, controllably and safely.

[0005] The present invention provides the following technical solutions: A hot air heating device for continuous fiber strip reinforced composite pipes, comprising a high-pressure axial flow fan, a heating device shell, a heating core, a temperature measuring probe and an air outlet, wherein the heating core is arranged in the heating device shell, a connecting piece is arranged at the left end of the heating core for fixing the heating core and connecting to the high-pressure axial flow fan installed at the rear end, the right end of the heating device shell is connected to the air outlet, a temperature measuring probe is arranged in the middle of the heating core for detecting the temperature of the heating core, and a temperature sensor is arranged at the air outlet of the heating device for detecting the temperature of the air outlet of the heating device.

[0006] Furthermore, the housing and air outlet of the heating device are designed to be detachable.

[0007] Furthermore, a directional different-diameter belt guide shaft is arranged at the top of the right end of the heating device shell to control the distance between the heated belt, the composite tube and the air outlet of the heating device and to control the flatness of the belt.

[0008] Furthermore, the air outlet includes an upper air outlet, a lower air outlet and a middle air outlet, and the middle air outlet is between the upper air outlet and the lower air outlet.

[0009] Furthermore, the middle air outlet of the heating device is in a flat mouth shape; the upper air outlet adopts multiple waisted round holes and forms an angle a with the horizontal, the angle is 10-15°, which is convenient for adjusting the distance between the strip passing through the directional different-diameter guide shaft; the lower air outlet is in an arc shape, and its arc radius matches the arc of the heated composite pipe, and the lower air outlet is provided with multiple waisted round holes.

[0010] Furthermore, a fastener installation piece is arranged on the top of the connecting piece, and the fastener installation piece can fasten the buckle on the upper edge of the heating device shell.

[0011] Furthermore, the heating core generates heat by energizing a resistance wire, an inductor or a resistance rod.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention has a high-pressure axial flow fan, a heating device shell, a heating core, a temperature measuring probe and an air outlet. The equipment has a compact structure. In the production of composite pipes, air is blown into the heating core by the high-pressure axial flow fan to generate a large amount of air. The heating core is powered on to generate heat. The wind speed and air volume are adjustable to form a hot air environment. The air takes away the heat generated by the heating core and blows toward the heated object through the air outlet of the heating device. The outlet temperature is monitored by the temperature measuring probe and the temperature sensor. The temperature of the heating core is detected in real time. The temperature is controllable, and the continuous fiber belt can be heated continuously and safely. The current heating method can more effectively improve the penetration of hot air, thereby heating the object more efficiently, and it is more convenient to use.

[0013] 2. It has a reasonable structure and is easy to operate. It can adjust and control wind speed, air volume and temperature. It can heat the continuous fiber belt continuously and safely. It has a wide range of applications and is suitable for promotion and application.

[0014] 3. The present invention can adjust the distance between the air outlet and the heated objects such as strips and composite tubes to ensure that the heated objects are bonded and composited in the best molten state. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a side view of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 3 It is a schematic diagram of the air outlet structure of the present invention.

[0017] In the figure: 1. high-pressure axial flow fan; 2. fastener mounting parts; 3. connecting parts; 4. heating device housing; 5. heating core; 6. temperature measuring probe; 7. directional reducing belt guide shaft; 8. temperature sensor; 9. air outlet; 91. upper air outlet; 92. lower air outlet; 93. middle air outlet. Implementation

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-3 A hot air heating device for a continuous fiber strip reinforced composite pipe of the present invention comprises a high-pressure axial flow fan 1, a heating device shell 4, a heating core 5, a temperature measuring probe 6 and an air outlet 9. The heating core 5 is arranged in the heating device shell 4. A connecting piece 3 is arranged at the left end of the heating core 5 for fixing the heating core 5 and connecting the high-pressure axial flow fan 1 installed at the rear end. The right end of the heating device shell 4 is connected to the air outlet 9. A temperature measuring probe 6 is arranged in the middle of the heating core 5 to detect the temperature of the heating core 5 in real time. A temperature sensor 8 is arranged at the air outlet 9 of the heating device to detect the temperature of the air outlet 9 of the heating device in real time.

[0020] The heating device housing 4 and the air outlet 9 are designed to be detachable.

[0021] A directional different-diameter belt guide shaft 7 is arranged at the top of the right end of the heating device housing 4 to control the distance between the heated belt, the composite pipe and the air outlet 9 of the heating device and to control the flatness of the belt.

[0022] The air outlet 9 includes an upper air outlet 91 , a lower air outlet 92 and a middle air outlet 93 , and the middle air outlet 93 is located between the upper air outlet 91 and the lower air outlet 92 .

[0023] The middle air outlet 93 of the heating device is in a flat mouth shape; the upper air outlet 91 adopts multiple waisted round holes and forms an angle a with the horizontal, the angle is 10-15°, which is convenient for adjusting the distance between the strip passing through the directional different-diameter guide shaft 7; the lower air outlet 92 is in an arc shape, and its arc radius matches the arc of the heated composite pipe, and the lower air outlet 92 is provided with multiple waisted round holes.

[0024] A fastener mounting piece 2 is arranged on the top of the connecting piece 3, and the fastener mounting piece 2 can fasten the buckle on the upper edge of the heating device housing 4, so as to facilitate the replacement of the heating core.

[0025] The high-pressure axial flow fan 1 is a high-speed and large-air-volume fan, and its wind speed and air volume are adjustable.

[0026] The heating core 5 uses a resistance wire, an inductor or a resistance rod to generate heat by energizing.

[0027] The housing 4 of the heating device is square or circular, and the length of its heating zone is determined according to the diameter of the composite pipe.

[0028] Continuous fiber belts include continuous glass fiber belts, continuous basalt fiber belts, aramid belts, steel belts, steel cord belts, PET belts and other thermoplastic fiber belts.

[0029] When in use, air is blown into the heating core 5 through the high-pressure axial flow fan 1, and the heating core 5 is powered on to generate heat. The air takes away the heat generated by the heating core 5 and blows toward the heated object through the air outlet 9 (upper air outlet 91, lower air outlet 92, and middle air outlet 93) of the heating device. The outlet temperature is monitored by the temperature probe 6 and the temperature sensor 8 and fed back to the temperature control system. The temperature control system uses the PID control principle to adjust the heating temperature in real time, thereby achieving heating of the object. It effectively improves the penetration of hot air and heats the object more efficiently, and can heat the continuous fiber belt continuously and safely.

[0030] The housing 4 of the heating device is square or circular. When in use, the length of the heating zone of the heating device can be determined according to the different diameters of the composite pipe.

[0031] The invention can adjust the distance between the air outlet and the heated objects such as the strip material and the composite pipe, so as to ensure that the heated objects are bonded and composited in the best melting state.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot air heating device for continuous fiber strip reinforced composite pipe, characterized in that: The invention comprises a high-pressure axial flow fan (1), a heating device housing (4), a heating core (5), a temperature measuring probe (6) and an air outlet (9), wherein the heating core (5) is arranged in the heating device housing (4), a connecting piece (3) is arranged at the left end of the heating core (5) for fixing the heating core (5) and connecting the high-pressure axial flow fan (1) installed at the rear end, the right end of the heating device housing (4) is connected to the air outlet (9), a temperature measuring probe (6) is arranged in the middle of the heating core (5) for detecting the temperature of the heating core (5), and a temperature sensor (8) is arranged at the heating device air outlet (9) for detecting the temperature of the heating device air outlet (9).

2. A hot air heating device for continuous fiber strip reinforced composite pipe according to claim 1, characterized in that: The heating device housing (4) and the air outlet (9) are designed to be detachable.

3. The hot air heating device for continuous fiber strip reinforced composite pipe according to claim 1, characterized in that: A directional tape guide shaft (7) with different diameters is arranged at the top of the right end of the heating device housing (4) to control the distance between the heated tape, the composite tube and the air outlet (9) of the heating device and to control the flatness of the tape.

4. The hot air heating device for continuous fiber strip reinforced composite pipe according to claim 1, characterized in that: The air outlet (9) comprises an upper air outlet (91), a lower air outlet (92) and a middle air outlet (93), and the middle air outlet (93) is between the upper air outlet (91) and the lower air outlet (92).

5. The hot air heating device for continuous fiber strip reinforced composite pipe according to claim 1, characterized in that: The middle air outlet (93) of the heating device is in the shape of a flat mouth; the upper air outlet (91) is provided with multiple waisted round holes and forms an angle a with the horizontal, the angle being 10-15 degrees, so as to facilitate adjustment of the distance between the upper air outlet and the strip passing through the directional different-diameter guide shaft (7); the lower air outlet (92) is in the shape of an arc, the radius of which matches the arc of the heated composite pipe, and the lower air outlet (92) is provided with multiple waisted round holes.

6. The hot air heating device for continuous fiber strip reinforced composite pipe according to claim 1, characterized in that: A fastening piece installation piece (2) is arranged on the top of the connecting piece (3), and the fastening piece installation piece (2) can fasten the buckle on the upper edge of the heating device housing (4).

7. The hot air heating device for continuous fiber strip reinforced composite pipe according to claim 1, characterized in that: The heating core (5) generates heat by energizing a resistance wire, an inductor or a resistance rod.

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