Corrugated roller capable of uniformly heating

Abstract

The utility model relates to the technical field of corrugated paper processing, in particular to a uniform-heating corrugated roller which comprises a roller body, a rotating shaft, a steam pipe, a siphon and a heating air extractor. The roller body is provided with a contact end part and a heating roller cavity; a contact shaft hole communicated with the heating roller cavity is formed in the contact end part; the number of the rotating shafts is two, each rotating shaft comprises a shaft head and a shaft body, the shaft heads are inserted into the contact shaft holes, one rotating shaft is provided with a steam pipe hole and a suction pipe hole, and a steam pipe and a siphon pipe penetrate through the steam pipe hole and the suction pipe hole correspondingly to enter the heating roller cavity and conduct heating and drainage on the heating roller cavity correspondingly; the two heating and air extracting devices are connected to the contact ends respectively and provided with rotating shaft holes, the shaft bodies are rotationally connected to the rotating shaft holes, and the heating and air extracting devices can heat the contact ends and heat the surfaces of the roller bodies at the contact ends through heat transfer, so that the temperature distribution of the whole surface of the roller bodies is uniform, and the service life of the roller bodies is prolonged. And the forming quality of the corrugated board is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated paper processing, in particular to a corrugating roll with uniform heating. Background Art

[0002] In the production process of corrugated board, the steam corrugating roll heats and shapes the corrugated paper through the transfer of internal steam to form the required corrugated structure. The steam corrugating roll mainly consists of a roll body, a rotating shaft and a steam heating system. Steam enters the inside of the roll body through a steam pipe, heats the roll body and raises its surface temperature, so as to heat and shape the passing paper. In the prior art, due to the different transfer paths and speeds of steam inside the roll body, as well as the structural differences at the contact end with the rotating shaft, the surface temperature of the roll body at the contact end is too low, resulting in uneven temperature distribution on the overall surface of the roll body, thus causing unstable forming effect of the corrugated board, such as uneven height and thickness of the corrugated board, which affects the overall quality and service performance of the corrugated board.

[0003] Therefore, it is necessary to improve the prior art to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a corrugating roll with uniform heating, aiming to solve the problem of uneven heating of the corrugating roll in the prior art.

[0005] To achieve the above purpose, the utility model provides a corrugating roll with uniform heating, which includes a roll body, a rotating shaft, a steam pipe, a siphon pipe and a heating and air extraction device; the roll body is provided with a contact end and a heating roll cavity; the contact end is provided with a contact shaft hole communicating with the heating roll cavity; there are two rotating shafts, the rotating shaft includes a shaft head and a shaft body, the shaft head is inserted into the contact shaft hole, one of the rotating shafts is provided with a steam pipe hole and a siphon pipe hole, the steam pipe and the siphon pipe respectively pass through the steam pipe hole and the siphon pipe hole and enter the heating roll cavity to heat and drain the heating roll cavity respectively;

[0006] There are two heating and air extraction devices which are respectively connected to the contact end. The heating and air extraction device is provided with a rotating shaft hole, and the shaft body is rotatably connected to the rotating shaft hole. The heating and air extraction device can heat the contact end.

[0007] Furthermore, the heating and air extraction device includes a base and a heating and air extraction disc; the heating and air extraction disc is arranged on the base, the heating and air extraction disc is provided with a convex ring, and the roll body is provided with a concave ring groove. The convex ring can penetrate into the concave ring groove to enable the roll body to rotate relative to the heating and air extraction device.

[0008] Further, the heating and air extraction device further includes a steam pipe and a siphon pipe; the heating and air extraction plate is provided with a heating circular groove, a steam pipe hole, and a siphon pipe hole; the heating circular groove, the roller body, and the rotating shaft form a heating ring cavity, and the steam pipe and the siphon pipe respectively pass through the steam pipe hole and the siphon pipe hole to enter the heating ring cavity and respectively heat and drain the heating ring cavity.

[0009] Further, the heating and air extraction device further includes an air extraction pipe, and the heating and air extraction plate is further provided with an air extraction hole and an air extraction ring groove; the roller body is provided with adsorption holes and an adsorption channel communicating with the adsorption holes, the air extraction ring groove and the roller body form an air extraction ring cavity and the air extraction ring cavity communicates with the adsorption channel, and the air extraction pipe passes through the air extraction hole to enter the air extraction ring cavity and can suck the gas in the adsorption channel.

[0010] Further, the shaft head is provided with an inner inclined ring groove, and the inner inclined ring groove communicates with the heating roller cavity.

[0011] Further, a ring convex is provided between the shaft head and the shaft body, and a first sealing ring is provided between the ring convex and the heating and air extraction plate.

[0012] Further, a second sealing ring is provided between the heating and air extraction plate and the roller body, and the second sealing ring is used to isolate the heating ring cavity and the air extraction ring cavity.

[0013] Further, a third sealing ring is further provided between the heating and air extraction plate and the roller body, and the third sealing ring is used to isolate the air extraction ring cavity and the concave ring groove.

[0014] Compared with the prior art, the corrugating roller with uniform heating provided by the present utility model can heat the contact end part by the heating and air extraction device, and heat the surface of the roller body at the contact end part through heat transfer, so that the temperature distribution on the overall surface of the roller body is uniform, ensuring that the heat received by the corrugated cardboard during the forming process is uniform and consistent, thereby improving the forming quality of the corrugated cardboard, avoiding problems such as uneven corrugation height and uneven thickness caused by uneven temperature, and further improving the overall quality of the corrugated cardboard. Description of the Drawings

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

[0016] Figure 2 is a sectional view of the present utility model;

[0017] Figure 3 is Figure 2 an enlarged structural schematic diagram of part A in

[0018] Figure 4 is a three-dimensional structural schematic diagram of the roller body;

[0019] Figure 5 is a sectional view of the roller body;

[0020] Figure 6It is a schematic three-dimensional structure diagram of a rotating shaft;

[0021] Figure 7 It is a sectional view of the rotating shaft;

[0022] Figure 8 It is a schematic three-dimensional structure diagram of a heating and air extraction device;

[0023] Figure 9 It is a sectional view of the heating and air extraction device.

[0024] Explanation of reference numerals in the drawings:

[0025] 1. Roller body; 10. Contact end; 11. Heating roller cavity; 12. Contact shaft hole; 13. Concave ring groove; 14. Adsorption hole; 15. Adsorption channel;

[0026] 2. Rotating shaft; 21. Shaft head; 211. Inner inclined ring groove; 22. Shaft body; 23. Steam pipe hole; 24. Suction pipe hole; 25. Ring convex;

[0027] 3. Steam pipe;

[0028] 4. Siphon tube;

[0029] 5. Heating and air extraction device; 50. Rotating shaft hole; 51. Base; 52. Heating and air extraction plate; 521. Convex ring; 522. Heating circular groove; 523. Heating ring cavity; 524. Air extraction hole; 525. Air extraction ring groove; 526. Air extraction ring cavity; 53. Air extraction pipe;

[0030] 6. First sealing ring;

[0031] 7. Second sealing ring;

[0032] 8. Third sealing ring. Specific embodiments

[0033] The following further elaborates on the present utility model with reference to specific embodiments.

[0034] In the present utility model, unless otherwise clearly defined and limited, when terms such as "arranged on", "connected", "linked" appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be directly connected or connected through one or more intermediate media. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. For the direction words in the present utility model, they are used to better explain the characteristics and the relationships between the characteristics. It should be understood that when the placement direction of the present utility model changes, the direction of the characteristics and the relationships between the characteristics also correspondingly change. Therefore, the direction words do not constitute an absolute limiting effect on the characteristics and the relationships between the characteristics in space, but only play a relative limiting role.

[0035] The utility model provides a corrugating roll with uniform heating, as Figures 1 to 9 shown. It includes a roll body 1, a rotating shaft 2, a steam pipe 3, a siphon pipe 4, and a heating and air extraction device 5; the roll body 1 is provided with a contact end 10 and a heating roll cavity 11; the contact end 10 is provided with a contact shaft hole 12 communicating with the heating roll cavity 11; there are two rotating shafts 2, and the rotating shaft 2 includes a shaft head 21 and a shaft body 22. The shaft head 21 is inserted into the contact shaft hole 12. One of the rotating shafts 2 is provided with a steam pipe hole 23 and a siphon pipe hole 24. The steam pipe 3 and the siphon pipe 4 respectively pass through the steam pipe hole 23 and the siphon pipe hole 24 and enter the heating roll cavity 11 to heat and drain the heating roll cavity 11 respectively;

[0036] There are two heating and air extraction devices 5, which are respectively connected to the contact end 10. The heating and air extraction device 5 is provided with a rotating shaft hole 50, and the shaft body 22 is rotatably connected to the rotating shaft hole 50. The heating and air extraction device 5 can heat the contact end 10.

[0037] Based on the above structural arrangement, the heating and air extraction device 5 can heat the contact end 10 and heat the surface of the roll body 1 at the contact end 10 through heat transfer, so that the temperature distribution on the overall surface of the roll body 1 is uniform, ensuring that the heat received by the corrugated cardboard during the forming process is consistent, thereby improving the forming quality of the corrugated cardboard and avoiding problems such as uneven corrugations and uneven thickness caused by uneven temperature, and further improving the overall quality of the corrugated cardboard.

[0038] In this embodiment, the heating and air extraction device 5 includes a base 51 and a heating and air extraction disc 52; the heating and air extraction disc 52 is arranged on the base 51. The heating and air extraction disc 52 is provided with a convex ring 521, and the roll body 1 is provided with a concave ring groove 13. The convex ring 521 can penetrate into the concave ring groove 13 to enable the roll body 1 to rotate relative to the heating and air extraction device 5. Through the cooperation of the convex ring 521 and the concave ring groove 13, the connection between the roll body 1 and the heating and air extraction device 5 is more stable, reducing the possibility of dislocation or detachment caused by vibration or external force, thereby improving the stability and reliability of the corrugating roll.

[0039] In this embodiment, the heating and air extraction device 5 further includes a steam pipe 3 and a siphon pipe 4; the heating and air extraction disc 52 is provided with a heating circular groove 522, a steam pipe hole 23, and a siphon pipe hole 24; the heating circular groove 522, the roll body 1, and the rotating shaft 2 form a heating ring cavity 523. The steam pipe 3 and the siphon pipe 4 respectively pass through the steam pipe hole 23 and the siphon pipe hole 24 and enter the heating ring cavity 523 to heat and drain the heating ring cavity 523 respectively. The steam pipe 3 enters the heating ring cavity 523 through the steam pipe hole 23 and heats the heating ring cavity 523, providing uniform and efficient heating for the contact end 10; the siphon pipe 4 enters the heating ring cavity 523 through the siphon pipe hole 24 to realize the drainage function, which helps to remove the condensed water or other liquids generated during the heating process and keep the heating ring cavity 523 dry and clean.

[0040] In this embodiment, the heating and air extraction device 5 further includes an air extraction pipe 53, and the heating and air extraction disc 52 is further provided with an air extraction hole 524 and an air extraction annular groove 525; the roller body 1 is provided with an adsorption hole 14 and an adsorption channel 15 communicating with the adsorption hole 14. The air extraction annular groove 525 and the roller body 1 form an air extraction annular cavity 526, and the air extraction annular cavity 526 communicates with the adsorption channel 15. The air extraction pipe 53 passes through the air extraction hole 524 and enters the air extraction annular cavity 526 and can suck the gas in the adsorption channel 15. Through the cooperation of the adsorption hole 14, the adsorption channel 15 and the air extraction annular cavity 526, the air extraction pipe 53 can quickly suck away the gas in the adsorption channel 15, thereby realizing the effective adsorption of the corrugated board and avoiding the slippage or falling off of the corrugated board during the processing.

[0041] In this embodiment, the shaft head 21 is provided with an inner inclined annular groove 211, and the inner inclined annular groove 211 communicates with the heating roller cavity 11. The heat in the heating roller cavity 11 can quickly enter the inner inclined annular groove 211, improving the heating efficiency of the contact end portion 10 and helping to shorten the heating time; and the condensed water generated in the inner inclined annular groove 211 can flow into the heating roller cavity 11, ensuring the dryness and cleanliness of the inner inclined annular groove 211.

[0042] In this embodiment, a ring convex 25 is provided between the shaft head 21 and the shaft body 22, and a first sealing ring 6 is provided between the ring convex 25 and the heating and air extraction disc 52. The first sealing ring 6 can form an effective sealing barrier at the connection gap between the shaft body 22 and the heating and air extraction disc 52, preventing the hot air in the heating annular cavity 523 from leaking, and helping to ensure the maintenance of the heat in the heating annular cavity 523.

[0043] In this embodiment, a second sealing ring 7 is provided between the heating and air extraction disc 52 and the roller body 1, and the second sealing ring 7 is used to isolate the heating annular cavity 523 and the air extraction annular cavity 526. The second sealing ring 7 can ensure that the gas between the two annular cavities does not penetrate each other, reducing the possibility of gas leakage and ensuring the stable operation of the corrugating roll.

[0044] In this embodiment, a third sealing ring 8 is further provided between the heating and air extraction disc 52 and the roller body 1, and the third sealing ring 8 is used to isolate the air extraction annular cavity 526 and the concave annular groove 13. The third sealing ring 8 can ensure that during the rotation of the roller body 1, the gas inside the air extraction annular cavity 526 does not enter the concave annular groove 13, improving the sealing performance of the corrugating roll.

[0045] In summary, this kind of corrugating roll with uniform heating can solve the problem of uneven heating of the corrugating roll in the prior art.

[0046] In the case of no conflict, the above embodiments and the features in the embodiments can be combined with each other.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.

Claims

1. A corrugating roll with uniform heating, characterized in that: It includes a roll body (1), a rotating shaft (2), a steam pipe (3), a siphon pipe (4), and a heating and air extraction device (5); the roll body (1) is provided with a contact end (10) and a heating roll cavity (11); the contact end (10) is provided with a contact shaft hole (12) communicating with the heating roll cavity (11); there are two rotating shafts (2), the rotating shaft (2) includes a shaft head (21) and a shaft body (22), the shaft head (21) is inserted into the contact shaft hole (12), one of the rotating shafts (2) is provided with a steam pipe hole (23) and a siphon pipe hole (24), the steam pipe (3) and the siphon pipe (4) respectively pass through the steam pipe hole (23) and the siphon pipe hole (24) and enter the heating roll cavity (11) to respectively heat and drain the heating roll cavity (11). There are two heating and air extraction devices (5) which are respectively connected to the contact end (10), the heating and air extraction device (5) is provided with a rotating shaft hole (50), the shaft body (22) is rotatably connected to the rotating shaft hole (50), and the heating and air extraction device (5) can heat the contact end (10).

2. The corrugating roll with uniform heating according to claim 1, characterized in that: The heating and air extraction device (5) includes a base (51) and a heating and air extraction disc (52); the heating and air extraction disc (52) is arranged on the base (51), the heating and air extraction disc (52) is provided with a convex ring (521), the roll body (1) is provided with a concave ring groove (13), and the convex ring (521) can penetrate into the concave ring groove (13) to enable the roll body (1) to rotate relative to the heating and air extraction device (5).

3. The corrugating roll with uniform heating according to claim 2, characterized in that: The heating and air extraction device (5) further includes a steam pipe (3) and a siphon pipe (4); the heating and air extraction disc (52) is provided with a heating circular groove (522), a steam pipe hole (23), and a siphon pipe hole (24); the heating circular groove (522) and the roll body (1) and the rotating shaft (2) form a heating ring cavity (523), and the steam pipe (3) and the siphon pipe (4) respectively pass through the steam pipe hole (23) and the siphon pipe hole (24) and enter the heating ring cavity (523) to respectively heat and drain the heating ring cavity (523).

4. The corrugating roll with uniform heating according to claim 2, wherein: The heating and air extraction device (5) further includes an air extraction pipe (53), and the heating and air extraction disc (52) is further provided with an air extraction hole (524) and an air extraction ring groove (525); the roll body (1) is provided with an adsorption hole (14) and an adsorption channel (15) communicating with the adsorption hole (14), the air extraction ring groove (525) and the roll body (1) form an air extraction ring cavity (526) and the air extraction ring cavity (526) communicates with the adsorption channel (15), and the air extraction pipe (53) passes through the air extraction hole (524) and enters the air extraction ring cavity (526) and can suck the gas in the adsorption channel (15).

5. The corrugating roll with uniform heating according to claim 1, characterized in that: The shaft head (21) is provided with an inner inclined ring groove (211), and the inner inclined ring groove (211) communicates with the heating roll cavity (11).

6. The corrugating roll with uniform heating according to claim 1, characterized in that: There is a ring convex (25) between the shaft head (21) and the shaft body (22), and there is a first sealing ring (6) between the ring convex (25) and the heating and air extraction disc (52).

7. The corrugating roll with uniform heating according to claim 2, wherein: There is a second sealing ring (7) between the heating and air extraction disc (52) and the roll body (1), and the second sealing ring (7) is used to isolate the heating ring cavity (523) and the air extraction ring cavity (526).

8. The corrugating roll with uniform heating according to claim 2, wherein: A third sealing ring (8) is further arranged between the heating air extraction disc (52) and the roller body (1), and the third sealing ring (8) is used to isolate the air extraction ring cavity (526) and the concave ring groove (13).

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