A belt on-line cleaning device for a double facer

Abstract

The utility model relates to paperboard production device technical field, specifically disclose a double -sided machine belt on -line cleaning device, including frame, propulsion mechanism, cleaning mechanism and drive mechanism, the frame is provided with the belt along x direction circulation delivery, the present application utilizes telescopic drive to drive torsion arm swing around fixed axle, thereby drive cleaning mechanism to fixed axle as the center of circle carries out the lifting movement, in the non -working state, cleaning mechanism lifts and keeps away from the belt, when working, then drop to with the belt surface rolling contact, this swing lifting mode compact reliable, can accurate control cleaning mechanism position, cleaning mechanism has adopted the multiple brush barrels of split type arrangement along the axial, and the brush barrel detachably installs on the central shaft, when part of brush barrel wears, need not integral replacement cleaning mechanism, only need to replace the worn brush barrel alone.

Description

Technical Field

[0001] This utility model relates to the technical field of cardboard production equipment, and in particular to an online cleaning device for a double-facer belt. Background Technology

[0002] In paperboard production lines, the belts used in double-facers are expensive, and their working environment is harsh, subject to long-term corrosion from paper, glue, and steam. To ensure the quality of subsequent paperboard forming, especially when using inferior base paper or improper gluing processes, impurities that detach during bonding easily adhere to the belt surface. This reduces the belt's air permeability, hinders the effective evaporation of moisture from the paperboard, and consequently affects the paperboard forming quality and causes energy waste.

[0003] Currently, the main way to solve the problem of belt cleaning is for operators to manually clean the belts during production. However, this method not only significantly reduces production efficiency, increases equipment start-up and shutdown losses and affects customer profits, but also poses a safety risk of operators being burned by high-temperature components.

[0004] To overcome the drawbacks of cleaning during downtime, some manufacturers have developed devices that can perform cleaning during production. For example, the cotton webbing cleaning mechanism and structure of a corrugated paper double-facer disclosed in Chinese Patent Publication No. CN206561646U include wall panels, a brush roller, a roller drive motor, a roller drive cylinder, a scraper fixed shaft, a scraper, and a scraper drive cylinder. The sliding bearing seats at both ends of the brush roller are respectively placed between the upper and lower sliding guide blocks of the two wall panels. The roller drive cylinder can drive the brush roller to move closer to or away from the cotton webbing along the sliding guide blocks through the sliding bearing seats. The roller drive motor can drive the brush roller to rotate. The scraper drive cylinder can drive the scraper fixed shaft to rotate through the scraper crank arm on the scraper fixed shaft, so as to drive the scraper on the scraper fixed shaft to descend closer to the cotton webbing or rise away from the cotton webbing.

[0005] However, existing online cleaning devices of this type, especially solutions like CN206561646U, typically have the following shortcomings: First, most use cylinders to directly drive the brush roller for linear lifting and lowering. This structure is complex to arrange in the narrow space of a double-sided cleaning machine, may occupy a lot of space, and requires precise guiding mechanisms, such as sliding guide blocks, increasing the complexity of the device and potential points of failure. Second, their brush rollers are usually of a one-piece structure. When the bristles in a local area of ​​the roller wear down to the point of needing replacement, the entire roller must be replaced, resulting in high maintenance costs and being uneconomical.

[0006] Therefore, the above problems urgently need to be solved. Utility Model Content

[0007] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an online cleaning device for double-sided machine belts to solve the above problems.

[0008] An online cleaning device for double-sided machine belts, comprising:

[0009] The frame is equipped with a conveyor belt that circulates along the x-axis;

[0010] Two propulsion mechanisms are respectively located on both sides of the frame in the y-direction; each propulsion mechanism includes:

[0011] A mounted bearing is fixedly installed on the frame.

[0012] A rotating shaft is rotatably disposed in the mounted bearing;

[0013] The torsion arm is fixedly connected to the rotating shaft;

[0014] A telescopic actuator, the body of which is hinged to the frame and the telescopic end of which is hinged to the torsion arm; the telescopic movement of the telescopic actuator drives the torsion arm to swing about the axis of the rotation shaft.

[0015] A cleaning mechanism is rotatably disposed between the swing ends of the two torsion arms; the cleaning mechanism includes a plurality of brush cylinders arranged separately along its axial direction; the propulsion mechanism drives the cleaning mechanism to separate from the upper end face of the belt in the raised position and to roll into contact with the upper end face of the belt in the lowered working position;

[0016] A drive mechanism is mounted on the frame or the torsion arm and is connected to the cleaning mechanism for driving the cleaning mechanism to rotate.

[0017] Specifically, the telescopic actuator is a cylinder, and the air inlet of the cylinder is connected to a solenoid valve.

[0018] Specifically, the cleaning mechanism also includes a brush shaft; the plurality of brush tubes are detachably mounted on the brush shaft along the axial direction.

[0019] Specifically, the two ends of the brush shaft are rotatably supported on the swing ends of the two torsion arms by bearings.

[0020] Specifically, the drive mechanism includes:

[0021] The mounting base is fixedly mounted on the frame.

[0022] The first motor is fixedly mounted on the mounting base;

[0023] The small pulley is fixedly connected to the output shaft of the first motor;

[0024] A large pulley is fixedly connected to the end of the brush shaft;

[0025] A transmission belt is fitted onto the small pulley and the large pulley;

[0026] The output shaft of the first motor and the rotation shaft of the propulsion mechanism are located on the same axis.

[0027] Specifically, the drive mechanism includes:

[0028] The second motor is fixedly mounted on the torsion arm;

[0029] The output shaft of the second motor is connected to the brush shaft via a drive mechanism.

[0030] Specifically, a conveyor roller is provided on the frame, the conveyor roller is located below the cleaning mechanism, and the belt passes through the gap between the conveyor roller and the cleaning mechanism in the lowered working position.

[0031] The beneficial effects of this utility model are:

[0032] 1. The double-sided machine belt online cleaning device of this application uses a telescopic driver to drive the torsion arm to swing around a fixed shaft, thereby driving the entire cleaning mechanism to move up and down around the fixed shaft as the center; in the non-working state, the cleaning mechanism is raised away from the belt; when working, it is lowered to roll contact with the belt surface; this swing lifting method has a compact and reliable structure, can accurately control the position of the cleaning mechanism, and realize online cleaning of the belt surface during production operation, avoiding the efficiency loss and safety risks caused by traditional downtime cleaning;

[0033] 2. The cleaning mechanism uses multiple brush cylinders arranged separately along the axial direction, and these brush cylinders are detachably mounted on the central shaft. When some brush cylinders wear out, it is not necessary to replace the entire cleaning mechanism; only the worn brush cylinders need to be replaced individually. This modular design greatly simplifies maintenance operations, significantly reduces maintenance costs and material waste, shortens replacement time, effectively extends the service life of the cleaning mechanism, and ultimately ensures the cleaning effect and overall lifespan of the belt. Attached Figure Description

[0034] Figure 1 This is a front view of the cardboard production line.

[0035] Figure 2 for Figure 1 A plan view of position A in the middle;

[0036] Figure 3 for Figure 1 A 3D view of position A in the middle;

[0037] Figure 4 The three-dimensional representation of the double-sided machine belt online cleaning device of this application Figure 1 The drive mechanism is omitted in the diagram;

[0038] Figure 5 The three-dimensional representation of the double-sided machine belt online cleaning device of this application Figure 2 The propulsion mechanism is omitted in the diagram;

[0039] Figure 6 This is a cross-sectional view of the double-sided machine belt online cleaning device of this application.

[0040] The attached figures are labeled as follows: frame 10, belt 11, conveyor roller 12, propulsion mechanism 20, bearing seat 21, rotating shaft 22, torsion arm 23, swing end 231, telescopic actuator 24, solenoid valve 25, cleaning mechanism 30, brush tube 31, brush shaft 32, bearing 33, drive mechanism 40, mounting base 41, first motor 42, small pulley 43, large pulley 44, transmission belt 45. Detailed Implementation

[0041] This utility model provides an online cleaning device for double-sided machine belts. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0042] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0043] Please refer to Figures 1 to 6 This embodiment discloses an online cleaning device for a double-sided machine belt, including a frame 10, two propulsion mechanisms 20, a cleaning mechanism 30 and a drive mechanism 40; the cyclic conveying of the belt 11 is defined as the x-direction, the width direction of the frame 10 is defined as the y-direction, and the height direction of the frame 10 is defined as the z-direction. The frame 10 is provided with a belt 11 that is cyclically conveyed along the x-direction.

[0044] Two propulsion mechanisms 20 are respectively arranged on both sides of the frame 10 in the y direction; each propulsion mechanism 20 includes a seated bearing 21, a rotating shaft 22, a torsion arm 23, and a telescopic actuator 24; the seated bearing 21 is fixedly mounted on the frame 10; the rotating shaft 22 is rotatably arranged in the seated bearing 21; the torsion arm 23 is fixedly connected to the rotating shaft 22; the body of the telescopic actuator 24 is hinged to the frame 10, and the telescopic end of the telescopic actuator 24 is hinged to the torsion arm 23; the telescopic movement of the telescopic actuator 24 drives the torsion arm 23 to swing around the axis of the rotating shaft 22; the propulsion mechanism 20 drives the cleaning mechanism 30 to separate from the upper end face of the belt 11 in the raised position and to roll into contact with the upper end face of the belt 11 in the lowered working position. When cleaning is not required, the telescopic actuator 24 is in the extended state, and the cleaning mechanism 30 is raised and separated from the upper end face of the belt 11. When work is required, the telescopic actuator 24 retracts, causing the torsion arm 23 to swing around the axis of the rotating shaft 22, thereby causing the cleaning mechanism 30 to descend to the lowered working position with the rotating shaft 22 as the center, making rolling contact with the upper end face of the belt 11, and the belt bearing 21 provides support for the rotating shaft 22.

[0045] The cleaning mechanism 30 is rotatably disposed between the swing ends 231 of the two torsion arms 23; the cleaning mechanism 30 includes a plurality of brush cylinders 31 arranged separately along its axial direction; during operation, the drive mechanism 40 drives the cleaning mechanism 30 to rotate, and when the brush cylinders 31 approach the belt 11, they clean the adhesive paper dirt on its surface; the brush cylinders 31 adopt a separate design, and can be replaced individually after some wear, thus extending their service life.

[0046] The drive mechanism 40 is mounted on the frame 10 or the torsion arm 23; the drive mechanism 40 is connected to the cleaning mechanism 30 for driving the cleaning mechanism 30 to rotate. This device enables online cleaning without stopping the machine, avoiding the efficiency loss caused by manual downtime cleaning, and also improving the service life of the belt 11.

[0047] In a preferred embodiment, the telescopic actuator 24 is a cylinder, and the cylinder's air inlet is connected to a solenoid valve 25. When cleaning is not required, the solenoid valve 25 is de-energized, the cylinder is extended, and the cleaning mechanism 30 remains raised. When operation is required, the solenoid valve 25 is energized, switching the air path and changing the cylinder's air supply state. The cylinder retracts, driving the torsion arm 23 to rotate around the axis of the rotating shaft 22, thereby driving the cleaning mechanism 30 to descend to the working position. By controlling the air supply direction of the cylinder through the solenoid valve 25, rapid and reliable switching of the lifting and lowering actions of the cleaning mechanism 30 is achieved, simplifying operation and improving automation.

[0048] In a preferred embodiment, the cleaning mechanism 30 also includes a brush shaft 32; multiple brush cylinders 31 are detachably mounted on the brush shaft 32 along the axial direction. When one or more brush cylinders 31 need to be replaced due to wear, the worn brush cylinder 31 can be removed from the brush shaft 32 and a new brush cylinder 31 can be installed along the axial direction, without disassembling or replacing the entire cleaning mechanism 30. This split-type installation structure greatly facilitates partial maintenance and replacement, significantly reduces maintenance costs and material waste, shortens replacement time, and improves the overall service life and operating efficiency of the equipment.

[0049] Both ends of the brush shaft 32 are rotatably supported on the swing ends 231 of the two torsion arms 23 via bearings 33. The bearings 33 allow the brush shaft 32 and its mounted brush cylinder 31 to rotate freely relative to the torsion arms 23, while stably supporting the brush shaft 32 on the swing ends 231 of the torsion arms 23, enabling it to rise and fall synchronously with the swing of the torsion arms 23. This support structure ensures smooth rotation of the cleaning mechanism 30 under the drive of the drive mechanism 40, reduces frictional loss, and ensures that the cleaning mechanism 30 can accurately follow the movement of the propulsion mechanism 20, reliably performing arc trajectory movement between the raised position and the lowered working position with the rotation shaft 22 as the center.

[0050] Furthermore, a conveyor roller 12 is provided on the frame 10, located below the cleaning mechanism 30. The belt 11 passes through the gap between the conveyor roller 12 and the cleaning mechanism 30 in its lowered working position. The conveyor roller 12 provides stable support for the descending belt 11, forming a clamping cleaning zone in cooperation with the cleaning mechanism 30 in its lowered working position. When the brush cylinder 31 of the cleaning mechanism 30 rotates for cleaning, the belt 11 maintains stable contact with the brush cylinder 31 and bears the cleaning pressure under the support of the conveyor roller 12. This structure ensures that the cleaning mechanism 30 applies a uniform and effective cleaning force to the belt 11, preventing the belt 11 from deforming or deviating during the cleaning process due to suspension or uneven force, significantly improving the cleaning effect and the reliability of the cleaning operation.

[0051] In a preferred embodiment, the drive mechanism 40 includes a mounting base 41, a first motor 42, a small pulley 43, a large pulley 44, and a transmission belt 45. The mounting base 41 is fixedly mounted on the frame 10. The first motor 42 is fixedly mounted on the mounting base 41. The small pulley 43 is fixedly connected to the output shaft of the first motor 42. The large pulley 44 is fixedly connected to the end of the brush shaft 32. The transmission belt 45 is sleeved on the small pulley 43 and the large pulley 44. The output shaft of the first motor 42 and the rotation shaft 22 of the propulsion mechanism 20 are located on the same axis. During operation, the first motor 42 drives the small pulley 43 to rotate, which in turn drives the large pulley 44 to rotate via the transmission belt 45. This, in turn, drives the brush shaft 32 and its brush cylinder 31 to rotate around the axis of the bearing 33 for cleaning. Simultaneously, the first motor 42 is fixed to the frame 10 instead of the torsion arm 23. The coaxial design of the output shaft of the first motor 42 and the rotation shaft 22 ensures that the rotation center of the small pulley 43 coincides with the swing center of the torsion arm 23. This guarantees a stable and reliable transmission relationship of the transmission belt 45 during the lifting and swinging motion of the cleaning mechanism 30 driven by the torsion arm 23, preventing excessive tension fluctuations or interference due to position changes. This drive mechanism layout effectively reduces the motion load on the torsion arm 23, lowers the thrust requirement of the telescopic actuator 24 and overall energy consumption, while ensuring the stability and reliability of the belt drive during the lifting and lowering process of the cleaning mechanism 30.

[0052] Of course, in other embodiments, the drive mechanism 40 can also use a second motor, which is fixedly mounted on the torsion arm 23, and the output shaft of the second motor is connected to the brush shaft 32 for transmission, which can also achieve the effect of driving the brush shaft 32 to rotate. However, since the second motor is fixedly mounted on the torsion arm 23, this structure will increase the thrust of the telescopic driver 24 when the telescopic driver 24 pushes the torsion arm 23, and the energy consumption is relatively high compared with the installation method of the drive mechanism 40 in this embodiment.

[0053] The preferred embodiments of this utility model have been described in detail above. However, this invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this invention.

Claims

1. A belt on-line cleaning device for a double facer, characterized in that, include: The frame (10) is equipped with a belt (11) for cyclic conveying along the x-direction; Two propulsion mechanisms (20) are respectively disposed on both sides of the frame (10) in the y direction; each propulsion mechanism (20) includes: A mounted bearing (21) is fixedly installed on the frame (10); The rotating shaft (22) is rotatably disposed in the bearing (21); Torsion arm (23) is fixedly connected to the rotating shaft (22); The telescopic actuator (24) has its body hinged to the frame (10) and its telescopic end hinged to the torsion arm (23); the telescopic movement of the telescopic actuator (24) drives the torsion arm (23) to swing around the axis of the rotation shaft (22); A cleaning mechanism (30) is rotatably disposed between the swing ends (231) of the two torsion arms (23); the cleaning mechanism (30) includes a plurality of brush cylinders (31) arranged separately along its axial direction; the propulsion mechanism (20) drives the cleaning mechanism (30) to separate from the upper end face of the belt (11) in the raised position and to roll into contact with the upper end face of the belt (11) in the lowered working position; A drive mechanism (40) is mounted on the frame (10) or the torsion arm (23) and is connected to the cleaning mechanism (30) for driving the cleaning mechanism (30) to rotate.

2. The on-line belt cleaning device for a double facer according to claim 1, characterized in that, The telescopic actuator (24) is a cylinder, and the air inlet of the cylinder is connected to a solenoid valve (25).

3. The in-line belt cleaning device for a double facer according to claim 1 or 2, characterized in that The cleaning mechanism (30) also includes a brush shaft (32); the plurality of brush cylinders (31) are detachably mounted on the brush shaft (32) along the axial direction.

4. The on-line belt cleaning device for a double facer according to claim 3, characterized in that, The two ends of the brush shaft (32) are rotatably supported by bearings (33) on the swing ends (231) of the two torsion arms (23).

5. The on-line belt cleaning device for a double facer according to claim 3, wherein, The drive mechanism (40) includes: Mounting base (41) is fixedly mounted on the frame (10); The first motor (42) is fixedly mounted on the mounting base (41); The small pulley (43) is fixedly connected to the output shaft of the first motor (42); A large pulley (44) is fixedly connected to the end of the brush shaft (32); A transmission belt (45) is fitted onto the small pulley (43) and the large pulley (44); The output shaft of the first motor (42) and the rotation shaft (22) of the propulsion mechanism (20) are located on the same axis.

6. The on-line belt cleaning device for a double facer according to claim 3, wherein, The drive mechanism (40) includes: The second motor is fixedly mounted on the torsion arm (23); The output shaft of the second motor is connected to the brush shaft (32) in a transmission connection.

7. The on-line belt cleaning device for a double facer according to claim 1, wherein, A conveyor roller (12) is provided on the frame (10), the conveyor roller (12) is located below the cleaning mechanism (30), and the belt (11) passes through the gap between the conveyor roller (12) and the cleaning mechanism (30) in the lowered working position.

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