Pneumatic tire device

Abstract

The utility model provides a pneumatic tire device which comprises at least two pneumatic tires, air inlets of the pneumatic tires are connected with an air supply pipe so that the air supply pipe can supply air to the pneumatic tires, and an air inlet valve is arranged on the air supply pipe. An air outlet of each pneumatic tire is provided with a corresponding exhaust pipe which is connected with the air outlet, so that the exhaust pipe exhausts air for the corresponding pneumatic tire; by adopting the technology, the exhaust flow of the pneumatic tires is increased, and the exhaust speed of each pneumatic tire can be accurately controlled by respectively operating the corresponding air outlet valves, so that the air exhaust efficiency of the pneumatic tires is improved, and meanwhile, the use requirement for adjusting the distance between the lower sizing roller and the upper sizing roller is met.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking, in particular to a pneumatic tire device. Background Art

[0002] The size press is one of the very important mechanical devices in the papermaking process. The size press uses pneumatic pressure, and the purpose of surface sizing is to prevent the penetration of liquid in the paper, obtain better surface properties, improve the physical properties of the paper sheet, and enhance the strength of the paper.

[0003] Refer to a traceless size press for papermaking with the publication number of CN106049177 A, which discloses a size press including a frame, an upper sizing roller, a lower sizing roller, a sizing spray pipe, and an air flow sizing pipe; the frame includes a main frame and a sub-frame, the main frame is fixedly arranged, the upper sizing roller is arranged on the main frame, the middle part of the sub-frame is hinged to the main frame, the lower sizing roller is arranged at the upper end of the sub-frame opposite to the upper sizing roller, and a pneumatic tire device for adjusting the surface distance between the lower sizing roller and the upper sizing roller is arranged at the lower end of the sub-frame. One end of the pneumatic tire device is connected to the main frame, and the other end of the pneumatic tire device is connected to the lower end of the sub-frame. The above pneumatic tire device has at least one pneumatic tire at each of the two ends of the main frame and the sub-frame, and the pneumatic tire is used to adjust the distance between the lower sizing roller and the upper sizing roller. After detecting paper breakage, the gas in the pneumatic tire needs to be discharged. The exhaust speed is relatively slow, which affects the production roll-lifting time. In the existing pneumatic tire device, the pneumatic tires share a common exhaust pipe, resulting in a slow exhaust speed of the pneumatic tires. Summary of the Utility Model

[0004] Therefore, it is necessary to provide a pneumatic tire device to solve the problem of the slow exhaust speed of the gas in the pneumatic tire of the existing pneumatic tire device.

[0005] To achieve the above object, the utility model provides a pneumatic tire device, which includes at least two pneumatic tires. The air inlet of the pneumatic tire is connected to an air supply pipe to supply air to it by the air supply pipe, and an air inlet valve is arranged on the air supply pipe; the air outlet of each pneumatic tire is connected to a corresponding exhaust pipe to exhaust air for the corresponding pneumatic tire, and a corresponding air outlet valve is arranged on each exhaust pipe.

[0006] Further, the air outlet of the pneumatic tire is connected to the exhaust pipe through a metal hose.

[0007] Further, the exhaust pipe is a DN25 stainless steel pipe.

[0008] Further, the air outlet valve is an automatically controlled air outlet valve.

[0009] Further, the air outlet valve is an air outlet solenoid valve powered by a 24V power supply.

[0010] Further, an air inlet of each of the pneumatic tires is provided with a corresponding air supply pipe connected thereto, so that the air supply pipe supplies air to the corresponding pneumatic tire.

[0011] Further, the air inlet of the pneumatic tire is connected to the air supply pipe through a metal hose.

[0012] Further, the air supply pipe is a DN25 stainless steel pipe.

[0013] Further, the air inlet valve is an automatically controlled air inlet valve.

[0014] Further, it further includes a paper break detection unit and a control unit. The control unit is electrically connected to the automatically controlled air outlet valve and the paper break detection unit respectively, so that the control unit detects whether there is a paper break through the paper break detection unit and controls the opening and closing of the automatically controlled air outlet valve.

[0015] Different from the prior art, the above technical solution independently controls the exhaust process of each pneumatic tire by separately providing an exhaust pipe for each pneumatic tire, increasing the exhaust flow rate of the pneumatic tire; the exhaust speed of each pneumatic tire can be accurately controlled by separately operating the corresponding air outlet valve, thereby improving the gas exhaust efficiency of the pneumatic tire and simultaneously meeting the use requirements for adjusting the distance between the lower sizing roller and the upper sizing roller. Description of the Drawings

[0016] Figure 1 Structural schematic diagram of the pneumatic tire device for the embodiment;

[0017] Figure 2 Module schematic diagram of the pneumatic tire device for the embodiment.

[0018] Description of the Reference Numerals:

[0019] 10. Pneumatic tire;

[0020] 20. Exhaust pipe;

[0021] 30. Air outlet valve;

[0022] 301. Manually operated air outlet valve; 302. Automatically controlled air outlet valve;

[0023] 40. Air supply pipe;

[0024] 50. Air inlet valve;

[0025] 501. Manually operated air inlet valve;

[0026] 60. Power supply;

[0027] 70. Paper break detection unit;

[0028] 80. Control unit. Detailed Embodiment

[0029] To elaborate in detail on the technical content, structural features, achieved objectives, and effects of the technical solution, the following provides a detailed description in conjunction with specific embodiments and with reference to the accompanying drawings.

[0030] As used herein, the term "embodiment" means that the specific features, structures, or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" that appears in various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in each embodiment can be combined in any manner to form corresponding implementable technical solutions.

[0031] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the technical field to which the present application belongs; the use of the relevant terms herein is only for describing specific embodiments and is not intended to limit the present application.

[0032] In the description of the present application, the phrase "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist. For example, A and / or B means: there is A, there is B, and there is both A and B at the same time. In addition, the character " / " in this article generally represents an "or" logical relationship between the associated objects before and after.

[0033] In the present application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary-secondary, or order relationship between these entities or operations.

[0034] Without more limitations, in the present application, the expressions "including", "comprising", "having", or other similar expressions used in a statement are intended to cover non-exclusive inclusion. These expressions do not exclude the possibility that there may be additional elements in the process, method, or product including the said elements, such that the process, method, or product including a series of elements may not only include those defined elements, but also include other elements not explicitly listed, or further include elements inherent to such process, method, or product.

[0035] Similar to the understanding in the "Patent Examination Guidelines", in the present application, expressions such as "greater than", "less than", "exceeding", etc. are understood not to include the number itself; expressions such as "above", "below", "within", etc. are understood to include the number itself. In addition, in the description of the embodiments of the present application, the meaning of "multiple" is two or more (including two), and similar expressions related to "many" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise specifically defined.

[0036] In the description of the embodiments of the present application, the spatially related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the specific embodiment or the drawings, and is only for the convenience of describing the specific embodiments of the present application or for the reader to understand, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0037] Unless otherwise clearly specified or limited, in the description of the embodiments of the present application, the terms "installed", "connected", "connected", "fixed", "set", etc. should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0038] See Figure 1 and Figure 2 As shown, the present utility model provides a pneumatic tire device, which is arranged between the main frame and the sub-frame of the sizing machine and is used to adjust the distance between the upper sizing roller and the lower sizing roller respectively installed on the main frame and the sub-frame. It solves the problem that the gas discharge speed of the pneumatic tire 10 of the existing pneumatic tire device is relatively slow. It mainly includes pneumatic tires 10 located on the TS side and the DS side (both sides of the main frame and the sub-frame). By separately arranging an exhaust pipe 20 for each pneumatic tire 10 to independently control the exhaust process of each pneumatic tire 10, the exhaust flow rate of the pneumatic tire 10 is increased; by separately operating the corresponding air outlet valve 30, the exhaust speed of each pneumatic tire 10 can be accurately controlled, thereby improving the gas exhaust efficiency of the pneumatic tire 10 and simultaneously meeting the use requirements for adjusting the distance between the lower sizing roller and the upper sizing roller.

[0039] The following provides an implementation manner for a pneumatic tire device of the present utility model, which includes at least two pneumatic tires 10. The air inlet of the pneumatic tire 10 is connected to the air supply pipe 40 so that the air supply pipe 40 supplies air to it, and an air inlet valve 50 is provided on the air supply pipe 40; the air outlet of each pneumatic tire 10 is connected to a corresponding exhaust pipe 20 so that the exhaust pipe 20 exhausts air for the corresponding pneumatic tire 10; a corresponding air outlet valve 30 is provided on each exhaust pipe 20.

[0040] There are various connection methods for connecting the air outlet of the pneumatic tire 10 to the exhaust pipe 20, such as threaded connection, ferrule connection, hose connection, etc.; in some embodiments, the air outlet and the exhaust pipe 20 are connected by threaded connection, that is, corresponding threads are processed on the air outlet and the exhaust pipe 20, and the threaded air outlet and the exhaust pipe 20 are screwed together, and tools such as wrenches are used to ensure a firm connection. Of course, auxiliary materials such as PTFE tape and sealant can also be used to ensure the tightness of the connection. In some embodiments, the air outlet and the exhaust pipe 20 are connected by ferrule connection, that is, the ferrule is sleeved on the pipe, and the pipe is inserted into the interface of the air outlet or the exhaust pipe, and the seal is achieved by the pressure and the sealing surface between the ferrule and the pipe, and the connection is reliable. In some embodiments, the air outlet and the exhaust pipe 20 are connected by a quick connector, that is, the female head and the male head of the quick connector are respectively connected to the air outlet and the exhaust pipe 20, and the connection is adjusted by connecting the female head and the male head of the quick connector to achieve quick connection. In some embodiments, the air outlet of the pneumatic tire 10 is connected to the exhaust pipe 20 by a metal hose, that is, hose clamps, clips or other fastening devices are used to connect the two ends of the hose to the air outlet and the exhaust pipe respectively. The above-mentioned hose can be a metal hose or a rubber hose. Preferably, it is a metal hose (such as a stainless steel corrugated hose, a metal-clad hose). The inner wall of the metal hose is smooth and has a small flow resistance, which can improve the smoothness and efficiency of gas flow, and help improve the gas exhaust efficiency of the pneumatic tire 10. At the same time, the metal hose has good flexibility, which can easily connect the air outlets and the exhaust pipes of the pneumatic tire 10 at different positions and directions, without complex installation tools and techniques, greatly reducing the installation difficulty and cost; in addition, the metal hose adopts a port sealing method, which is mostly made of high-quality materials such as stainless steel, and has excellent properties such as high temperature resistance and corrosion resistance. Even in harsh working environments, it can maintain stable sealing performance and ensure the safe operation of the pneumatic tire device.

[0041] The above-mentioned exhaust pipe 20 can be streamlined or gradually expanding (the cross-section at one end connected to the air outlet gradually expands to the other end), using the kinetic characteristics of the gas to accelerate the air flow, reduce the eddy current and turbulence of the gas in the pipe, optimize the air flow speed, reduce energy loss, and improve the exhaust efficiency. The material forming types of the exhaust pipe 20 are diverse, and the specific selection depends on materials, design requirements and production processes, such as flexible PVC, rubber materials (such as ethylene propylene diene monomer rubber), metal materials, composite materials, etc. are formed. This embodiment provides an implementation manner of the exhaust pipe 20, and the exhaust pipe 20 is a DN25 stainless steel pipe. The cross-sectional shape of the DN25 stainless steel pipe is circular. The circular cross-section can reduce the contact area between the gas and the inner wall of the pipe, reduce the frictional resistance of the gas, and at the same time help to form a laminar flow, reduce eddy current and turbulence, and further reduce the gas flow resistance; in addition, the inner wall of the stainless steel pipe is smooth and has a small flow resistance, which can improve the smoothness and efficiency of gas flow, and help improve the gas exhaust efficiency of the pneumatic tire 10.

[0042] The above-mentioned air outlet valve 30 is used to open and close the exhaust pipe 20, and can also be used to precisely control the exhaust speed of each air tire 10. There are various implementation manners of the air outlet valve 30, and the specific selection should be customized according to actual application requirements.

[0043] In some embodiments, the air outlet valve 30 is a manually operated air outlet valve 301. The manually operated air outlet valve 301 is usually equipped with an operating handle or a handwheel, and the manually operated air outlet valve 301 is located on one side or the upper part of the valve. During operation, rotate the handle or handwheel counterclockwise until the exhaust port starts to exhaust until the exhaust is completed, which has the advantages of simple structure and convenient operation.

[0044] In some embodiments, the air outlet valve 30 is an automatically controlled air outlet valve 302. The automatically controlled air outlet valve 302 is usually used in cooperation with components such as a paper break detection unit 70 (such as a paper break detection sensor, etc.) and a control unit 80. That is, it also includes a paper break detection unit 70 and a control unit 80. The control unit 80 is electrically connected to the automatically controlled air outlet valve 302 and the paper break detection unit 70 respectively, so that the control unit 80 detects whether there is a paper break through the paper break detection unit 70 and controls the opening and closing of the automatically controlled air outlet valve 302. When the paper break detection unit 70 detects a paper break, the paper break detection unit 70 sends a signal to the control unit 80, and the control unit 80 drives the automatically controlled air outlet valve 302 to open according to the received signal to achieve automatic interlocking. For example, the automatically controlled air outlet valve 302 is a solenoid valve. The control unit 80 controls whether the electromagnet is energized to control the opening and closing of the valve. When the solenoid valve is energized, it will generate a magnetic force to attract the valve core to move, thereby opening the valve. When powered off, the magnetic force disappears, and the valve core closes the valve under the action of a reset device such as a spring, which has the characteristics of fast reaction speed and high control accuracy. The above solenoid valve can be powered by a 24V power supply 60. 24V belongs to the safe voltage range, which greatly reduces the risk of electric shock for operators and maintenance personnel, thereby improving the safety of the workplace. The 4V solenoid valve is designed specifically for flammable and explosive environments, such as the explosion-proof solenoid valve coil EM-1.1 / CX DC24V, which can effectively isolate ignition sources such as sparks and static electricity in the external environment. Another example is that the automatically controlled air outlet valve 302 is a pneumatic valve. The pneumatic valve uses compressed air and other gases as the power source to drive the opening and closing of the valve. When the gas pressure acts on the valve core, it will push the valve core to move to change the opening or state of the valve, which has the characteristics of compact structure and reliable operation.

[0045] Of course, it is also possible to combine the advantages of the manually operated air outlet valve 301 and the automatically controlled air outlet valve 302 in the above embodiments to jointly control the opening and closing of the exhaust pipe 20. For example, the air outlet valve 30 includes a solenoid valve and a manually operated air outlet valve 301.

[0046] Similarly, an air inlet of each of the pneumatic tires 10 is provided with a corresponding air supply pipe 40 connected thereto, so that the air supply pipe 40 supplies air to the corresponding pneumatic tire 10. By separately providing the air supply pipe 40 for each pneumatic tire 10, the air supply process of each pneumatic tire 10 can be independently controlled to increase the air supply flow rate of the pneumatic tire 10; by separately operating the corresponding air inlet valve 50, the air supply speed of each pneumatic tire 10 can be precisely controlled, thereby improving the air supply efficiency of the pneumatic tire 10 and simultaneously meeting the use requirement for adjusting the distance between the lower sizing roller and the upper sizing roller.

[0047] There are various connection methods for connecting the air inlet of the pneumatic tire 10 to the air supply pipe 40, such as threaded connection, ferrule connection, hose connection, etc.; in some embodiments, the air inlet and the air supply pipe 40 are connected by threaded connection, that is, corresponding threads are machined on the air inlet and the air supply pipe 40, and the threaded air inlet and the air supply pipe 40 are screwed and connected, and tools such as a wrench are used to ensure firm connection. Of course, auxiliary materials such as raw tape and sealant can also be used to ensure the tightness of the connection. In some embodiments, the air inlet and the air supply pipe 40 are connected by ferrule connection, that is, a ferrule is sleeved on the pipe, and the pipe is inserted into the interface of the air inlet or the air outlet pipe, and the seal is achieved by the pressure between the ferrule and the pipe and the sealing surface, and the connection is reliable. In some embodiments, the air inlet and the air supply pipe 40 are connected by a quick connector, that is, the female head and the male head of the quick connector are respectively connected to the air inlet and the air supply pipe 40, and by connecting the female head and the male head of the quick connector and adjusting the tightening degree of the connector, quick connection is achieved. In some embodiments, the air inlet of the pneumatic tire 10 and the air supply pipe 40 are connected by a metal hose, that is, both ends of the hose are respectively connected to the air inlet and the air outlet pipe by using a clamp, a clip or other fastening devices. The above-mentioned hose can be a metal hose or a rubber hose. Preferably, it is a metal hose (such as a stainless steel corrugated hose, a metal-clad hose). The inner wall of the metal hose is smooth and has a small flow resistance, which can improve the smoothness and efficiency of gas flow, and contribute to improving the air supply efficiency of the pneumatic tire 10. At the same time, the metal hose has good flexibility, can conveniently connect the air inlets and the air outlet pipes of the pneumatic tires 10 at different positions and directions, without complex installation tools and techniques, greatly reducing the installation difficulty and cost; in addition, the metal hose adopts a port sealing method and is mostly made of high-quality materials such as stainless steel, and has excellent properties such as high temperature resistance and corrosion resistance. Even in a harsh working environment, it can maintain stable sealing performance to ensure the safe operation of the pneumatic tire device.

[0048] The above-mentioned air supply pipe 40 can be streamlined to utilize the kinetic characteristics of the gas to accelerate the air flow, reduce the eddy current and turbulence of the gas in the pipeline, optimize the air flow velocity, reduce the energy loss, and improve the air supply efficiency. There are various types of material forming for the air supply pipe 40, and the specific selection depends on materials, design requirements, and production processes, such as flexible PVC, rubber materials (such as ethylene propylene diene monomer rubber), metal materials, composite materials, etc. This embodiment provides an implementation manner of the air supply pipe 40, and the air supply pipe 40 is a DN25 stainless steel pipe. The cross-sectional shape of the DN25 stainless steel pipe is circular, and the circular cross-section can reduce the contact area between the gas and the inner wall of the pipeline, reduce the frictional resistance of the gas, and at the same time help to form a laminar flow, reduce the eddy current and turbulence, and further reduce the gas flow resistance; in addition, the inner wall of the stainless steel pipe is smooth and the flow resistance is small, which can improve the smoothness and efficiency of the gas flow, and help to improve the gas supply efficiency of the pneumatic tire 10.

[0049] The above-mentioned intake valve 50 is used to open and close the air supply pipe 40, and can also be used to precisely control the air supply speed of each pneumatic tire 10. There are various implementation manners of the intake valve 50, and the specific selection should be customized according to actual application requirements.

[0050] In some embodiments, the intake valve 50 is a manually operated intake valve 501. The manually operated intake valve 501 is usually equipped with an operating handle or a handwheel, and the manually operated intake valve 501 is located on one side or the upper part of the valve; during operation, rotate the handle or handwheel counterclockwise until the air supply port starts to supply air until the air supply is completed, which has the advantages of simple structure and convenient operation.

[0051] In some embodiments, the intake valve 50 is an automatically controlled intake valve. An automatically controlled intake valve is typically used in conjunction with components such as a control unit 80. The control unit 80 is electrically connected to the automatically controlled intake valve so that the control unit 80 controls the opening and closing of the automatically controlled intake valve to achieve automatic interlocking. For example, if the automatically controlled intake valve is a solenoid valve, the control unit 80 controls whether the electromagnet is energized to control the opening and closing of the valve. When the solenoid valve is energized, a magnetic force is generated to attract the valve core to move, thereby opening the valve; when de-energized, the magnetic force disappears, and the valve core closes the valve under the action of a reset device such as a spring, which has the characteristics of fast response speed and high control accuracy. The above solenoid valve can be powered by a 24V power supply 60. 24V belongs to the safe voltage range, which greatly reduces the risk of electric shock for operators and maintenance personnel, thus improving the safety of the workplace. The 24V solenoid valve is designed specifically for flammable and explosive environments, such as the explosion-proof solenoid valve coil EM-1.1 / CX DC24V, which can effectively isolate ignition sources such as sparks and static electricity in the external environment. Another example is that if the automatically controlled intake valve is a pneumatic valve, the pneumatic valve uses compressed air or other gases as a power source to drive the opening and closing of the valve; when the gas pressure acts on the valve core, it will push the valve core to move to change the opening or state of the valve, which has the characteristics of a compact structure and reliable operation.

[0052] Of course, it is also possible to combine the advantages of the manually operated intake valve 501 and the automatically controlled intake valve in the above embodiments to jointly control the opening and closing of the air supply pipe 40. For example, the intake valve 50 includes a solenoid valve and a manually operated intake valve 501.

[0053] It should be noted that although the above embodiments have been described in this article, this does not limit the patent protection scope of the present invention. Therefore, based on the innovative concept of the present invention, any changes and modifications made to the embodiments described in this article, or equivalent structural or equivalent process transformations made using the content of the specification and drawings of the present invention, and directly or indirectly applying the above technical solutions to other related technical fields, are all included in the patent protection scope of the present invention.

Claims

1. A pneumatic tire device, characterized in that: It includes at least two pneumatic tires. The air inlets of the pneumatic tires are connected to the air supply pipes to supply air to them by the air supply pipes, and an air inlet valve is provided on each air supply pipe; the air outlet of each pneumatic tire is connected to a corresponding exhaust pipe to exhaust air for the corresponding pneumatic tire; an air outlet valve is provided on each exhaust pipe.

2. The pneumatic tire device according to claim 1, characterized in that, The air outlet of the pneumatic tire is connected to the exhaust pipe through a metal hose.

3. The pneumatic tire device according to claim 1, characterized in that, The exhaust pipe is a DN25 stainless steel pipe.

4. The pneumatic tire device according to claim 1, characterized in that, The air outlet valve is an automatically controlled air outlet valve.

5. The pneumatic tire device according to claim 4, characterized in that, The air outlet valve is an air outlet solenoid valve and is powered by a 24V power supply.

6. The pneumatic tire device according to claim 1, characterized in that, The air inlet of each pneumatic tire is connected to a corresponding air supply pipe to supply air to the corresponding pneumatic tire.

7. The pneumatic tire device according to claim 1, characterized in that, The air inlet of the pneumatic tire is connected to the air supply pipe through a metal hose.

8. The pneumatic tire device according to claim 1, characterized in that, The air supply pipe is a DN25 stainless steel pipe.

9. The pneumatic tire device according to claim 1, wherein, The air inlet valve is an automatically controlled air inlet valve.

10. The pneumatic tire device according to claim 4, characterized in that, It further includes a paper break detection unit and a control unit. The control unit is electrically connected to the automatically controlled air outlet valve and the paper break detection unit respectively, so that the control unit detects whether there is a paper break through the paper break detection unit and controls the opening and closing of the automatically controlled air outlet valve.

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