PU pipe curing dryer

Abstract

The utility model relates to a PU pipe curing and drying machine, and aims to solve the problems that the existing drying equipment puts a formed PU pipe in the drying equipment and then blows and dries the PU pipe through hot air, however, the hot air is mostly in contact with the outer surface of the PU pipe, the drying of the inner wall of the PU pipe is limited, and the drying efficiency is high. The drying device comprises a drying box, a negative pressure fan is arranged on one side of the outer wall of the drying box, a waste gas treatment box is arranged on the other side of the outer wall of the drying box, and a folding hose is connected to one side of the negative pressure fan. According to the air suction device, air is sucked into the first limiting frame through the folding hose, the hollow frame and the first conveying pipe, the heating wire in the first limiting frame effectively heats the frame body, so that the passing air is heated, the heated air passes through the PU pipe body to dry the interior of the PU pipe body, and the overall drying effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PU pipe production, in particular to a PU pipe curing and drying machine. Background Art

[0002] The production process of PU tubes mainly includes the steps of raw material preparation, batching, mixing, injection molding, molding and curing. Since there is a certain degree of moisture on the surface of the newly formed PU tube, it needs to be dried in time to ensure its strength in use. Therefore, a curing dryer is needed to dry and cure the newly formed PU tube.

[0003] The existing drying equipment places the formed PU tube inside it and then uses hot air to blow and dry the PU tube. However, in this method, the hot air mostly contacts the outer surface of the PU tube, which has limitations on the drying of the inner wall of the PU tube, thereby reducing the overall drying effect. In view of this, we propose a PU tube curing dryer. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet the actual needs, and provide a PU tube curing dryer to solve the technical problem that the current existing drying equipment places the formed PU tube inside it and then blows and dries the PU tube with hot air. However, in this method, the hot air mostly contacts the outer surface of the PU tube, and there are limitations on the drying of the inner wall of the PU tube, thereby reducing the overall drying effect.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: design a PU tube curing dryer, including a drying box, a negative pressure fan is provided on one side of the outer wall of the drying box, an exhaust gas treatment box is provided on the other side of the outer wall of the drying box, a folding hose is connected to one side of the negative pressure fan, and an adjustment mechanism is connected to the end of the folding hose away from the negative pressure fan, and a PU tube body is clamped inside the adjustment mechanism;

[0006] The adjustment mechanism includes a hydraulic cylinder, which is arranged on the inner wall of the drying box. The movable end of the hydraulic cylinder is connected to a hollow frame. A plurality of first transmission tubes are evenly distributed on the surface of the hollow frame. The first transmission tube is internally connected to a first limiting frame. A second transmission tube is provided on the opposite side of the first transmission tube. The second transmission tube is arranged on the inner wall of the drying box. The second transmission tube is internally connected to a second limiting frame.

[0007] Preferably, the negative pressure fan is connected to the hollow frame through a foldable hose, and the hollow frame and the first transmission pipe are fixedly connected.

[0008] Preferably, the hollow frame, the first transmission pipe and the drying box form a telescopic structure through a hydraulic cylinder, and the first transmission pipe and the first limiting frame are threadedly connected.

[0009] Preferably, the second transmission pipe and the second limiting frame are threadedly connected, and the second limiting frame is connected to the exhaust gas treatment box through the second transmission pipe.

[0010] Preferably, the first limiting frame comprises a frame body, the inner wall of the frame body is provided with a plurality of arc-shaped grooves distributed at annular intervals, an interlayer is provided inside the frame body, and a heating wire is evenly wound inside the interlayer.

[0011] Preferably, the frame and the interlayer are integrally formed, and the heating wire winding path matches the interlayer structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model effectively drives the hollow frame to translate through the hydraulic cylinder, thereby driving the first transmission tube and the first limiting frame to translate, which is convenient for adjusting the distance between the first limiting frame and the second limiting frame, so as to adapt to clamping PU tube bodies of different lengths. Since the first transmission tube and the first limiting frame are threadedly connected, and the second transmission tube and the second limiting frame are threadedly connected, the first limiting frame and the second limiting frame can be disassembled by screwing the two, which is convenient for inspection and replacement.

[0014] 2. In the utility model, the negative pressure fan performs exhaust work, and transmits the drawn air to the inside of the first limiting frame through the folded hose, the hollow frame, and the first transmission pipe. The heating wire in the first limiting frame effectively heats the frame body, thereby increasing the temperature of the passing air. At the same time, under the influence of the arc groove, the contact surface between the frame body and the air is increased, and the air flow path is extended, thereby effectively slowing down the flow speed of the air, so that the air is fully heated, thereby improving the drying effect on the inner wall of the PU tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the drying box of the utility model;

[0017] Figure 3 It is a schematic diagram of the partial disassembled structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the first limiting frame of the utility model;

[0019] In the figure: 1. Drying box; 2. Negative pressure fan; 3. Exhaust gas treatment box; 4. Folding hose; 5. Adjustment mechanism; 6. PU tube body;

[0020] 501, hydraulic cylinder; 502, hollow frame; 503, first transmission tube; 504, first limit frame; 504a, frame body; 504b, arc groove; 504c, interlayer; 504d, heating wire; 505, second transmission tube; 506, second limit frame. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0022] A PU pipe curing and drying machine, see Figures 1 to 4 , comprising a drying box 1, a negative pressure fan 2 is provided on one side of the outer wall of the drying box 1, an exhaust gas treatment box 3 is provided on the other side of the outer wall of the drying box 1, a folding hose 4 is connected to one side of the negative pressure fan 2, an end of the folding hose 4 away from the negative pressure fan 2 is connected to an adjusting mechanism 5, and a PU pipe body 6 is clamped inside the adjusting mechanism 5;

[0023] The adjusting mechanism 5 includes a hydraulic cylinder 501, which is arranged on the inner wall of the drying box 1. The movable end of the hydraulic cylinder 501 is connected to a hollow frame 502. A plurality of first transmission pipes 503 are evenly distributed on the surface of the hollow frame 502. The negative pressure fan 2 is connected to the hollow frame 502 through a folding hose 4. The hollow frame 502 and the first transmission pipe 503 are fixedly connected. The first transmission pipe 503 is internally connected to a first limiting frame 504. Furthermore, the hollow frame 502 and the first transmission pipe 503 are connected to each other. The hydraulic cylinder 501 and the drying box 1 form a telescopic structure, the first transmission pipe 503 and the first limiting frame 504 are threadedly connected, a second transmission pipe 505 is provided on the opposite side of the first transmission pipe 503, the second transmission pipe 505 is provided on the inner wall of the drying box 1, and the second transmission pipe 505 is internally connected to the second limiting frame 506. Furthermore, the second transmission pipe 505 and the second limiting frame 506 are threadedly connected, and the second limiting frame 506 is connected to the exhaust gas treatment box 3 through the second transmission pipe 505. The utility model effectively drives the hollow frame 502 to translate through the hydraulic cylinder 501, thereby driving the first transmission tube 503 and the first limiting frame 504 to translate, so as to facilitate the adjustment of the distance between the first limiting frame 504 and the second limiting frame 506, so as to adapt to clamping PU tube bodies 6 of different lengths. Since the first transmission tube 503 and the first limiting frame 504 are threadedly connected, and the second transmission tube 505 and the second limiting frame 506 are threadedly connected, the first limiting frame 504 and the second limiting frame 506 can be disassembled by screwing the two, so as to facilitate maintenance and replacement.

[0024] It is worth noting that the first limiting frame 504 includes a frame body 504a, the inner wall of which is provided with a plurality of arc grooves 504b at annular intervals, an interlayer 504c is provided inside the frame body 504a, and a heating wire 504d is evenly wound inside the interlayer 504c, wherein the frame body 504a and the interlayer 504c are integrally formed, and the winding path of the heating wire 504d matches the structure of the interlayer 504c. In the utility model, the negative pressure fan 2 performs exhaust work, and transmits the sucked air to the inside of the first limiting frame 504 through the folded hose 4, the hollow frame 502, and the first transmission tube 503. The heating wire 504d in the first limiting frame 504 effectively heats the frame body 504a, thereby raising the temperature of the passing air. At the same time, under the influence of the arc groove 504b, the contact surface between the frame body 504a and the air is increased, and the air flow path is extended, thereby effectively slowing down the flow speed of the air, so that the air is fully heated, thereby improving the drying effect on the inner wall of the PU tube body 6.

[0025] Working principle: The hollow frame 502 is driven to translate by the hydraulic cylinder 501, thereby driving the first transmission tube 503 and the first limiting frame 504 to translate, so as to adjust the distance between the first limiting frame 504 and the second limiting frame 506, so as to adapt to clamp the PU tube body 6, and then start the drying box 1, the drying box 1 dries and solidifies the outer surface of the PU tube body 6, and at the same time the negative pressure fan 2 performs the exhaust work, and transmits the sucked air to the first limiting frame 504 through the folding hose 4, the hollow frame 502, and the first transmission tube 503. Inside the frame 504, the heating wire 504d in the first limiting frame 504 heats the frame body 504a, thereby increasing the temperature of the passing air. At the same time, affected by the arc groove 504b, the contact area between the frame body 504a and the air increases, and the air flow path is extended, thereby slowing down the flow speed of the air, so that the air is fully heated up. The heated air passes through the PU pipe body 6 to dry the inside, and then the air passes through the second limiting frame 506 and the second transmission pipe 505 to reach the exhaust gas treatment box 3 for further treatment and discharge.

[0026] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A PU tube curing dryer, comprising a drying box (1), characterized in that: A negative pressure fan (2) is provided on one side of the outer wall of the drying box (1), and an exhaust gas treatment box (3) is provided on the other side of the outer wall of the drying box (1); a folding hose (4) is connected to one side of the negative pressure fan (2); an adjusting mechanism (5) is connected to the end of the folding hose (4) away from the negative pressure fan (2); a PU tube body (6) is clamped inside the adjusting mechanism (5); The adjusting mechanism (5) comprises a hydraulic cylinder (501), wherein the hydraulic cylinder (501) is arranged on the inner wall of the drying box (1), and the movable end of the hydraulic cylinder (501) is connected to a hollow frame (502), and a plurality of first transmission tubes (503) are evenly distributed on the surface of the hollow frame (502), and the first transmission tube (503) is internally connected to a first limiting frame (504), and a second transmission tube (505) is arranged on the opposite side of the first transmission tube (503), and the second transmission tube (505) is arranged on the inner wall of the drying box (1), and the second transmission tube (505) is internally connected to a second limiting frame (506).

2. The PU tube curing and drying machine according to claim 1, characterized in that: The negative pressure fan (2) is connected to the hollow frame (502) via a foldable hose (4), and the hollow frame (502) and the first transmission pipe (503) are fixedly connected.

3. The PU tube curing and drying machine according to claim 1, characterized in that: The hollow frame (502), the first transmission pipe (503) and the drying box (1) form a telescopic structure through a hydraulic cylinder (501), and the first transmission pipe (503) and the first limiting frame (504) are threadedly connected.

4. The PU tube curing and drying machine according to claim 1, characterized in that: The second transmission pipe (505) and the second limiting frame (506) are threadedly connected, and the second limiting frame (506) is connected to the exhaust gas treatment box (3) through the second transmission pipe (505).

5. The PU tube curing and drying machine according to claim 1, characterized in that: The first limiting frame (504) comprises a frame body (504a), the inner wall of which is provided with a plurality of arc grooves (504b) at annular intervals, an interlayer (504c) is provided inside the frame body (504a), and a heating wire (504d) is evenly wound inside the interlayer (504c).

6. The PU tube curing and drying machine according to claim 5, characterized in that: The frame (504a) and the interlayer (504c) are integrally formed, and the winding path of the heating wire (504d) matches the structure of the interlayer (504c).

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