Dehydration box structure for multi-cylinder paper machine

Abstract

The utility model relates to the technical field of dewatering box structures for paper machines, and discloses a dewatering box structure for a multi-cylinder paper machine, which comprises a hollow dewatering drying box. Through guide rollers are arranged on the front side wall face and the rear side wall face of the bottom of the dewatering drying box and used for leading paper to be dried into and out of the dewatering drying box, and a fan and an electric heating part which are matched are further arranged on the dewatering drying box and used for blowing hot air for drying to the paper to dry the paper. And a height-adjustable traction roller is arranged in the dewatering and drying box and is used for pulling the paper. According to the utility model, the operation height of the traction roller can be adjusted according to the drying requirements for paper with different water contents or different thicknesses, so that the drying time of the paper in the dewatering and drying box can be adjusted under the condition that the rolling speed of the paper is not changed, the paper can be kept at a uniform rolling speed, and the paper can be conveniently wound around the device.

Description

Technical Field

[0001] The utility model relates to the technical field of dewatering box structures for papermaking machines, in particular to a dewatering box structure for a multi-cylinder papermaking machine. Background Art

[0002] Paper is the most commonly used item in our daily life. Whether reading, reading newspapers, writing or painting, we have to come into contact with paper. In the process of papermaking, the papermaking raw materials need to be dehydrated. In the existing technology, during the dehydration process, the use of electromagnetic heating rollers is a common method. However, when the electromagnetic heating roller rotates, the surface contacts the paper and some water droplets will inevitably adhere to it. The water droplets will absorb the heat of the electromagnetic heating roller, thereby reducing the dehydration speed. Moreover, as the dehydration progresses, the humidity in the dehydration box increases, which will reduce the dehydration progress and the dehydration efficiency is low.

[0003] Patent No. CN216404920U discloses a papermaking machine dewatering box, including a box body, a first connecting rod fixedly connected to one side of the inner wall of the box body, a first pressure roller rotatably connected to the outer surface of the first connecting rod, and a second connecting rod fixedly connected to the side of the inner wall of the box body close to the first pressure roller.

[0004] However, due to the different moisture content or thickness of the paper, the processing time required is different. However, the above patent cannot adjust the processing time of the paper in the dehydration box, so the drying speed can only be accelerated by adjusting the temperature. Excessive temperature will cause the paper to lose toughness and easily break. Utility Model Content

[0005] The technical problem to be solved by the present invention is: in order to overcome the above problems, a dewatering box structure for a multi-cylinder papermaking machine is provided, which solves the above problems.

[0006] The utility model solves the technical problem by adopting the following technical solutions:

[0007] A dewatering box structure for a multi-cylinder papermaking machine includes a hollow dewatering and drying box. Through-grooves are provided on the front and rear side walls of the bottom of the dewatering and drying box for introducing and leading paper to be dried into and out of the dewatering and drying box. The dewatering and drying box is also provided with a matching fan and an electric heating unit for blowing hot drying air toward the paper to dry it. A traction roller with adjustable height is provided in the dewatering and drying box for traction of the paper. The paper forms an inverted V shape under the traction of the traction roller. Hot air enters the dewatering and drying box from the bottom and is blown onto the inner inclined surface of the paper. Compared with the existing technology, the effective effect rate of the drying hot air is effectively improved. The hot air continues to rise under the action of heat and takes away water vapor under the guidance of the fan.

[0008] Preferably, a screw is symmetrically rotated in the dehydration and drying box, and a polished rod is symmetrically fixed on the side of the screw, an adjusting slider is threadedly connected to the screw, and a linear sliding bearing that slides with the polished rod is fixed on the adjusting slider, the screw is driven by a driving motor fixed to the dehydration and drying box, and the traction roller is rotatably set on the adjusting slider. During operation, the traction roller is lowered to be flush with the through groove, and then the paper is passed through the through groove, and then the adjusting slider is moved upward to bend the paper, which is more convenient and quicker than the existing technology.

[0009] Preferably, a guide roller is rotatably provided in the through groove, so as to facilitate the introduction of paper into the dehydration drying box and avoid the paper from being pulled and damaged due to contact with the rough wall surface of the through groove.

[0010] Preferably, at least one upward exhaust fan is fixedly provided at the upper end of the dehydration and drying box, and the fan is used to discharge the air in the dehydration and drying box to the outside.

[0011] Preferably, air holes are provided at intervals on the side of the dehydration drying box for drawing external dry air into the dehydration drying box.

[0012] Preferably, an electric heating wire heating part is fixed on the outer wall of the dehydration drying box by bolts, and the electric heating wire heating part covers the outside of the air vent. The electric heating wire heating part heats the air electrically so that the external air enters the dehydration drying box for rapid drying.

[0013] Preferably, a tempered glass window is provided on the side wall of the dehydration and drying box for observing the position and working condition of the traction roller in the dehydration and drying box.

[0014] The advantages and positive effects of the present invention are: the operating height of the traction roller can be adjusted according to the drying requirements for papers with different moisture contents or different thicknesses, so that the drying time of the paper in the dehydration drying box can be adjusted without changing the paper winding speed, and the paper can maintain a uniform winding speed, and it is convenient to pass the paper around the device, and it is only necessary to adjust the traction roller to the bottom and then pass the paper straight through, which is more convenient than the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 yes Figure 1 Schematic diagram of the structure after cutting. DETAILED DESCRIPTION

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating the basic structure of the present invention in a schematic manner, and therefore only show components relevant to the present invention. The following is a further detailed description of embodiments of the present invention with reference to the accompanying drawings:

[0019] like Figure 1-2 As shown, the dewatering box structure for a multi-cylinder papermaking machine described in the present invention includes a hollow dewatering and drying box 10, and a through groove 11 is provided on the front and rear side walls of the bottom of the dewatering and drying box 10 for introducing and leading the paper to be dried into and out of the dewatering and drying box 10, and the dewatering and drying box 10 is also provided with a matching fan and an electric heating part for blowing hot air for drying to the paper to dry it, and the dewatering and drying box 10 is provided with a traction roller 17 with an adjustable height for traction of the paper. The paper forms an inverted V shape under the traction of the traction roller 17, and the hot air enters the dewatering and drying box 10 from the bottom and blows onto the inner inclined surface of the paper. Compared with the existing technology, the effective effect rate of the drying hot air is effectively improved. The hot air continues to rise under the action of heat and takes away water vapor under the guidance of the fan.

[0020] Preferably, a screw 14 is symmetrically rotated in the dehydration and drying box 10, and a polished rod 15 is symmetrically fixed on the side of the screw 14, an adjusting slider 16 is threadedly connected to the screw 14, and a linear sliding bearing that slides with the polished rod 15 is fixed on the adjusting slider 16. The screw 14 is driven by a drive motor 13 fixed to the dehydration and drying box 10, and the traction roller 17 is rotatably set on the adjusting slider 16. During operation, the traction roller 17 is lowered to be flush with the through groove 11, and then the paper is passed through the through groove 11, and then the adjusting slider 16 is moved upward to bend the paper, which is more convenient and quick than the existing technology.

[0021] Preferably, a guide roller 12 is rotatably provided in the through groove 11 , so as to facilitate the introduction of paper into the dehydration drying box 10 and prevent the paper from being pulled and damaged due to contact with the rough wall surface of the through groove 11 .

[0022] Preferably, at least one upward exhaust fan 20 is fixedly provided at the upper end of the dehydration drying box 10 , and the fan 20 is used to discharge the air in the dehydration drying box 10 to the outside.

[0023] Preferably, air vents 18 are provided at intervals on the side of the dehydration drying box 10 for drawing external dry air into the dehydration drying box 10 .

[0024] Preferably, an electric heating wire heating part 19 is fixed to the outer wall of the dehydration drying box 10 by bolts, and the electric heating wire heating part 19 covers the outside of the air vent 18. The electric heating wire heating part 19 heats the air electrically so that the external air is heated and then enters the dehydration drying box 10 for rapid drying.

[0025] Preferably, a tempered glass window 21 is provided on the side wall of the dehydration and drying box 10 for observing the position and working condition of the traction roller 17 in the dehydration and drying box 10 .

[0026] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation methods. Any other implementation methods derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A dewatering box structure for a multi-cylinder papermaking machine, characterized in that: The invention comprises a hollow dehydration drying box (10), wherein through grooves (11) are provided on the front and rear side walls of the bottom of the dehydration drying box (10) for introducing and leading the paper to be dried into and out of the dehydration drying box (10), and the dehydration drying box (10) is also provided with a matching fan and an electric heating unit for blowing hot air for drying toward the paper to dry it, and a traction roller (17) with adjustable height is provided in the dehydration drying box (10) for traction of the paper. The paper forms an inverted V shape under the traction of the traction roller (17), and the hot air enters the dehydration drying box (10) from the bottom and blows toward the inner inclined surface of the paper.

2. A dewatering box structure for a multi-cylinder papermaking machine according to claim 1, characterized in that: A screw (14) is symmetrically rotated in the dehydration drying box (10), and a polished rod (15) is symmetrically fixed on the side of the screw (14). An adjusting slider (16) is threadedly connected to the screw (14), and a linear sliding bearing that slides with the polished rod (15) is fixed on the adjusting slider (16). The screw (14) is driven by a driving motor (13) fixed on the dehydration drying box (10), and the traction roller (17) is rotatably arranged on the adjusting slider (16).

3. A dewatering box structure for a multi-cylinder papermaking machine according to claim 2, characterized in that: A guide roller (12) is rotatably provided in the through groove (11).

4. A dewatering box structure for a multi-cylinder papermaking machine according to claim 3, characterized in that: At least one upward exhaust fan (20) is fixedly provided at the upper end of the dehydration drying box (10), and the fan (20) is used to discharge the air in the dehydration drying box (10) to the outside.

5. A dewatering box structure for a multi-cylinder papermaking machine according to claim 4, characterized in that: Ventilation holes (18) are provided at intervals on the side of the dehydration drying box (10) for drawing external dry air into the dehydration drying box (10).

6. A dewatering box structure for a multi-cylinder papermaking machine according to claim 5, characterized in that: An electric heating wire heating portion (19) is fixedly provided on the outer wall of the dehydration drying box (10) by means of bolts. The electric heating wire heating portion (19) covers the outer side of the air vent (18). The electric heating wire heating portion (19) electrically heats the air so that the external air is heated and then enters the dehydration drying box (10) for rapid drying.

7. A dewatering box structure for a multi-cylinder papermaking machine according to claim 6, characterized in that: A tempered glass window (21) is provided on the side wall of the dehydration drying box (10).

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