Preheating cylinder assembly of corrugating machine

Abstract

The utility model discloses a preheating cylinder assembly of a corrugating machine, and belongs to the technical field of corrugating machines. The preheating cylinder assembly solves the defects that in the prior art, a preheating cylinder assembly in a corrugating machine is low in energy utilization rate, and the wrap angle is inconvenient to adjust. The device mainly comprises a rack, a preheating cylinder is installed on the rack and connected with an air inlet pipe and a condensate water drainage pipe, the condensate water drainage pipe is connected with a water inlet of a water pump, a paper guide roller is further rotationally installed on the rack and located on one side of the preheating cylinder, the paper guide roller is provided with an inner cavity, and the two ends of the paper guide roller are provided with a water inlet and a water outlet which are communicated with the inner cavity respectively. The two ends of the paper guide roller are connected with the paper guide rotating joints respectively, a water inlet and a water outlet of the paper guide roller are connected with the rotating parts of the paper guide rotating joints on the same side respectively, the supporting frames are fixedly installed at the two ends of the paper guide roller of the rack respectively, and the supporting frames on the two sides are fixedly connected with the fixing parts of the paper guide rotating joints on the two sides respectively. And a water outlet of the water pump is connected with the fixed part of the paper guide rotary joint on one side of the water inlet.

Description

Technical Field

[0001] The utility model belongs to the technical field of corrugating machines, and more particularly, it relates to a preheating cylinder assembly of a corrugating machine. Background Art

[0002] The production process of corrugated paper is relatively complex. Among them, the moisture content index of the base paper will directly affect the production process of corrugated board and the quality of products. In order to better control moisture and prevent the board from bending, it is necessary to preheat the base paper during production. When a corrugating machine produces corrugated paper, the base paper is generally preheated by a preheating cylinder. Many preheating cylinders of corrugating machines use steam as a heat source. The steam is introduced into the preheating cylinder through the air inlet to heat the preheating cylinder. Condensate will be generated when the steam is in the preheating cylinder. Currently, the condensate generated by the preheating cylinder is generally directly discharged through a drain pipe and a water pump. However, the temperature of the condensate discharged from the preheating cylinder is relatively high, which causes a great waste of heat and is not conducive to energy conservation and efficiency improvement of enterprises. Many current preheating cylinders are equipped with corner wrapping rollers and paper guiding rollers on both sides. The corner wrapping rollers are used to adjust the contact area between the base paper and the preheating cylinder, that is, the corner wrapping size, and the paper guiding rollers are used to guide the base paper. Currently, when adjusting the corner wrapping size, it is still often manually adjusted. Manually adjusting the corner wrapping size is not only cumbersome in operation but also prone to inaccurate adjustment problems. Summary of the Invention

[0003] The purpose of the utility model is to provide a preheating cylinder assembly of a corrugating machine to overcome the defects of low energy utilization rate and inconvenient adjustment of the corner wrapping size in the preheating cylinder assembly of the existing corrugating machine.

[0004] The utility model is realized by adopting the following technical solutions: A preheating cylinder assembly of a corrugating machine includes a frame. A preheating cylinder is installed on the frame. The preheating cylinder is connected to an air inlet pipe and a condensate drain pipe. The condensate drain pipe is connected to the water inlet of a water pump. A paper guiding roller is rotatably installed on one side of the preheating cylinder on the frame. The paper guiding roller is provided with an inner cavity. Water inlets and water outlets communicating with the inner cavity are respectively opened at both ends of the paper guiding roller. The two ends of the paper guiding roller are respectively connected to paper guiding rotary joints, and the water inlets and water outlets of the paper guiding roller are respectively connected to the rotating parts of the paper guiding rotary joints on the same side. Support frames are fixedly installed at both ends of the paper guiding roller on the frame, and the two support frames on both sides are respectively fixedly connected to the fixed parts of the paper guiding rotary joints on both sides. The water outlet of the water pump is connected to the fixed part of the paper guiding rotary joint on the side of the water inlet.

[0005] Further, both sides of the paper guiding roller are rotatably installed on the frame through first bearings.

[0006] Further, the preheating cylinder is rotatably mounted on the frame. One end of the preheating cylinder is provided with a preheating rotary joint. The movable part of the preheating rotary joint is connected to the air inlet of the preheating cylinder. The air inlet pipe and the condensate drain pipe are respectively connected to the fixed part of the preheating rotary joint. The air inlet pipe communicates with the air inlet of the preheating cylinder through the fixed part of the preheating rotary joint, and the condensate drain pipe is connected to the drain pipe inside the preheating cylinder through the fixed part of the preheating rotary joint.

[0007] Further, the frame is rotatably mounted with a wrap angle roller on one side of the preheating cylinder relative to the paper guiding roller. The two sides of the preheating cylinder are respectively provided with rotating shafts. The rotating shaft close to the preheating rotary joint is provided with a hollow cavity and is connected to the movable part of the preheating rotary joint. A passive gear and a rotating arm are respectively rotatably mounted on the two rotating shafts. The two ends of the wrap angle roller are respectively provided with connecting shafts, and the two connecting shafts are respectively connected to the passive gear and the rotating arm. A wrap angle motor is mounted on the frame, and a driving gear meshing with the passive gear is mounted on the output shaft of the wrap angle motor.

[0008] Further, the two rotating shafts are respectively rotatably mounted on the frame through second bearings.

[0009] Further, an angle encoder is mounted on the wrap angle motor.

[0010] Further, a non-contact temperature sensor for detecting the surface temperature of the preheating cylinder is also mounted on the frame.

[0011] Further, the non-contact temperature sensor adopts an infrared sensor.

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

[0013] 1. In the present utility model, the high-temperature condensate water just discharged from the preheating cylinder is introduced into the inner cavity of the paper guiding roller to heat the surface of the paper guiding roller. Thus, the paper guiding roller of the present utility model not only has a guiding function, but also has the function of heating the base paper, which further improves the utilization rate of steam, reduces the production cost of enterprises, and saves energy.

[0014] 2. By setting an angle encoder in the present utility model, the rotation angle of the wrap angle motor can be collected, and then the rotation angle of the wrap angle roller can be collected. Then, the rotation of the wrap angle motor can be automatically and accurately controlled by the controller, and then the rotation angle of the wrap angle roller can be accurately controlled, effectively solving the problems of troublesome operation and inaccurate adjustment existing when manually adjusting the rotation angle of the wrap angle roller at present. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a perspective view of the present utility model.

[0017] In the figure: 1, frame; 2, preheating cylinder; 3, intake pipe; 4, condensate drain pipe; 5, water pump; 6, paper guiding roller; 7, paper guiding rotary joint; 8, support frame; 9, first bearing; 10, preheating rotary joint; 11, wrap angle roller; 12, rotating shaft; 13, driven gear; 14, rotating arm; 15, connecting shaft; 16, wrap angle motor; 17, driving gear; 18, non-contact temperature sensor; 19, second bearing. Specific implementation mode

[0018] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0019] A corrugating machine preheating cylinder assembly includes a frame 1, on which a preheating cylinder 2 is installed. The preheating cylinder 2 is connected to an intake pipe 3 and a condensate drain pipe 4. The intake pipe 3 is used to introduce steam into the preheating cylinder 2 to heat the preheating cylinder 2. The condensate drain pipe is connected to the drain pipe inside the preheating cylinder 2, and the condensate drain pipe 4 is connected to the water inlet of a water pump 5, so as to timely drain the condensate water in the preheating cylinder 2 through the water pump 5.

[0020] On one side of the preheating cylinder 2 of the frame 1, a paper guiding roller 6 is rotatably installed. The paper guiding roller 6 is used to guide the base paper passing through the preheating cylinder 2. In the prior art, the paper guiding roller 6 only plays a guiding role. In the present invention, the high-temperature condensate water just discharged from the preheating cylinder 2 is introduced into the inner cavity of the paper guiding roller 6 to heat the surface of the paper guiding roller 6. Thus, the paper guiding roller 6 described in the present invention also has the function of heating the base paper, which improves the utilization rate of steam, reduces the production cost of enterprises, and saves energy.

[0021] The paper guiding roller 6 is provided with an inner cavity. Water inlets and outlets communicating with the inner cavity are respectively opened at both ends of the paper guiding roller 6. When the paper guiding roller 6 is in use, high-temperature condensate water enters the inner cavity from the water inlet and is discharged from the water outlet. Moreover, the paper guiding roller 6 is rotatably installed on the frame 1. When the base paper passes through the paper guiding roller 6, the paper guiding roller 6 will also rotate. The high-temperature condensate water will heat the surface of the paper guiding roller 6 during the process of passing through the inner cavity.

[0022] Both ends of the paper guiding roller 6 are respectively connected to a paper guiding rotary joint 7, and the water inlet and outlet of the paper guiding roller 6 are respectively connected to the rotary parts of the paper guiding rotary joints 7 on the same side. The frame 1 is fixedly installed with support frames 8 at both ends of the paper guiding roller 6, and the support frames 8 on both sides are respectively fixedly connected to the fixed parts of the paper guiding rotary joints 7 on both sides. The water outlet of the water pump 5 is connected to the fixed part of the paper guiding rotary joint 7 on the side of the water inlet, and the fixed part of the paper guiding rotary joint 7 on the side of the water outlet of the paper guiding roller 6 is connected to a water pipe to discharge the condensed water passing through the inner cavity of the paper guiding roller 6. By arranging the paper guiding rotary joints 7 on both sides and fixing the fixed parts of the paper guiding rotary joints 7 on both sides to the frame 1 through the support frames 8, the present utility model makes the condensed water drain pipe 4 and the water pipe connected to the fixed part of the paper guiding rotary joint 7 on the side of the water outlet of the paper guiding roller 6 not rotate with the paper guiding roller 6.

[0023] Both sides of the paper guiding roller 6 are respectively rotatably installed on the frame 1 through first bearings 9, and the first bearings 9 are installed on the frame 1 through bearing seats.

[0024] The preheating cylinder 2 is rotatably installed on the frame 1, and a preheating rotary joint 10 is installed at one end of the preheating cylinder 2. The movable part of the preheating rotary joint 10 is connected to the air inlet of the preheating cylinder 2. The air inlet pipe 3 and the condensed water drain pipe 4 are respectively connected to the fixed part of the preheating rotary joint 10. The air inlet pipe 3 communicates with the air inlet of the preheating cylinder 2 through the fixed part of the preheating rotary joint 10, and the condensed water drain pipe 4 is connected to the drain pipe inside the preheating cylinder 2 through the fixed part of the preheating rotary joint 10.

[0025] The frame 1 rotatably installs a wrap angle roller 11 on the side of the preheating cylinder 2 opposite to the paper guiding roller 6. Rotating shafts 12 are respectively installed on both sides of the preheating cylinder 2. The rotating shaft 12 near the preheating rotary joint 10 is provided with a hollow cavity and is connected to the movable part of the preheating rotary joint 10. A passive gear 13 and a rotating arm 14 are respectively rotatably installed on the two rotating shafts 12. Connecting shafts 15 are respectively installed at both ends of the wrap angle roller 11, and the two connecting shafts 15 are respectively connected to the passive gear 13 and the rotating arm 14. A wrap angle motor 16 is installed on the frame 1, and a driving gear 17 meshing with the passive gear 13 is installed on the output shaft of the wrap angle motor 16.

[0026] In the present utility model, the line of the rotating shaft 12 of the wrap angle roller 11 is the same as the line of the rotating shaft 12 of the preheating cylinder 2.

[0027] The corner wrapping roller 11 of the present utility model is used to adjust the corner wrapping size and is driven to rotate by the corner wrapping motor 16. When the corner wrapping motor 16 drives the corner wrapping roller 11 to rotate downward through the driving gear 17 and the driven gear 13, the corner wrapping can be increased, thereby increasing the contact area between the base paper and the preheating cylinder 2. When the corner wrapping motor 16 drives the corner wrapping roller 11 to rotate upward through the driving gear 17 and the driven gear 13, the corner wrapping can be decreased, thereby reducing the contact area between the base paper and the preheating cylinder 2. The corner wrapping motor 16 of the present utility model has a power-off self-locking function, so that when the corner wrapping motor 16 is not powered on, the driven gear 13 cannot be rotated, and thus the corner wrapping roller 11 cannot be rotated.

[0028] The corner wrapping roller 11 of the present utility model is rotatably installed on the frame 1. The corner wrapping roller 11 can be rotatably connected to the driven gear 13 and the rotating arm 14 respectively through the connecting shafts 15 on both sides. Alternatively, a rotating cylinder can be provided on the outer side of the corner wrapping roller 11, and the rotating cylinder is sleeved on the corner wrapping roller 11 and rotates relative to the corner wrapping roller 11. A bearing is installed between the rotating cylinder and the corner wrapping roller 11.

[0029] The rotating shafts 12 on both sides are respectively rotatably installed on the frame 1 through the second bearings 19.

[0030] An angle encoder is installed on the corner wrapping motor 16. By setting the angle encoder in the present utility model, the rotation angle of the corner wrapping motor 16 can be collected, and then the rotation angle of the corner wrapping roller 11 can be collected. Furthermore, the rotation of the corner wrapping motor 16 can be automatically and accurately controlled through the controller, and then the rotation angle of the corner wrapping roller 11 can be accurately controlled, effectively solving the problems of troublesome operation and inaccurate adjustment existing when manually adjusting the rotation angle of the corner wrapping roller 11 currently.

[0031] A non-contact temperature sensor 18 for detecting the surface temperature of the preheating cylinder 2 is also installed on the frame 1. The non-contact temperature sensor 18 adopts an infrared sensor. By setting the non-contact temperature sensor 18 in the present utility model, the surface temperature of the preheating cylinder 2 can be collected in real time, and the collected surface temperature is transmitted to the controller. The controller can adjust the corner wrapping size in a timely manner through the corner wrapping motor 16 according to the temperature information.

Claims

1. A corrugating machine preheating cylinder assembly, comprising a frame (1), a preheating cylinder (2) is installed on the frame (1), the preheating cylinder (2) is connected to an intake pipe (3) and a condensate drain pipe (4), the condensate drain pipe (4) is connected to the water inlet of a water pump (5), and it is characterized in that, On one side of the preheating cylinder (2), the frame (1) is also rotatably installed with a paper guide roller (6). The paper guide roller (6) is provided with an inner cavity. Water inlets and outlets communicating with the inner cavity are respectively opened at both ends of the paper guide roller (6). Paper guide rotary joints (7) are respectively connected to both ends of the paper guide roller (6), and the water inlet and outlet of the paper guide roller (6) are respectively connected to the rotating parts of the paper guide rotary joints (7) on the same side. The frame (1) is fixedly installed with support frames (8) at both ends of the paper guide roller (6), and the support frames (8) on both sides are respectively fixedly connected to the fixed parts of the paper guide rotary joints (7) on both sides. The water outlet of the water pump (5) is connected to the fixed part of the paper guide rotary joint (7) on the side of the water inlet.

2. The corrugating machine preheating cylinder assembly according to claim 1, characterized in that, Both sides of the paper guide roller (6) are rotatably installed on the frame (1) through first bearings (9).

3. The corrugating machine preheating cylinder assembly according to claim 1, characterized in that, The preheating cylinder (2) is rotatably installed on the frame (1). A preheating rotary joint (10) is installed at one end of the preheating cylinder (2). The movable part of the preheating rotary joint (10) is connected to the air inlet of the preheating cylinder (2). The air inlet pipe (3) and the condensate drain pipe (4) are respectively connected to the fixed part of the preheating rotary joint (10). The air inlet pipe (3) communicates with the air inlet of the preheating cylinder (2) through the fixed part of the preheating rotary joint (10), and the condensate drain pipe (4) is connected to the drain pipe in the preheating cylinder (2) through the fixed part of the preheating rotary joint (10).

4. The corrugating machine preheating cylinder assembly according to claim 3, wherein, On the side of the preheating cylinder (2) opposite to the paper guide roller (6), the frame (1) is rotatably installed with a wrap angle roller (11). Rotating shafts (12) are respectively installed on both sides of the preheating cylinder (2). The rotating shaft (12) close to the preheating rotary joint (10) is provided with a hollow cavity and is connected to the movable part of the preheating rotary joint (10). A driven gear (13) and a rotating arm (14) are respectively rotatably installed on the two rotating shafts (12). Connecting shafts (15) are respectively installed at both ends of the wrap angle roller (11), and the connecting shafts (15) on both sides are respectively connected to the driven gear (13) and the rotating arm (14). A wrap angle motor (16) is installed on the frame (1), and a driving gear (17) meshing with the driven gear (13) is installed on the output shaft of the wrap angle motor (16).

5. The corrugating machine preheating cylinder assembly according to claim 4, characterized in that, Both of the rotating shafts (12) on both sides are rotatably installed on the frame (1) through second bearings (19).

6. The corrugating machine preheating cylinder assembly according to claim 4, characterized in that, An angle encoder is installed on the wrap angle motor (16).

7. The corrugating machine preheating cylinder assembly according to claim 4, characterized in that, A non-contact temperature sensor (18) for detecting the surface temperature of the preheating cylinder (2) is also installed on the frame (1).

8. The corrugating machine preheating cylinder assembly according to claim 7, characterized in that, The non-contact temperature sensor (18) adopts an infrared sensor.

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