Double-layer roller deviation rectifying control device

Abstract

The utility model belongs to the technical field of filter cloth deviation rectification, and particularly relates to a double-layer roller deviation rectification control device which comprises a lower deviation rectification assembly, an upper deviation rectification assembly and an adjusting assembly, the lower deviation rectification assembly comprises a rotatable lower deviation rectification roller, and a lower guide strip is spirally arranged on the periphery of the lower deviation rectification roller; the upper deviation rectifying assembly comprises a rotatable upper deviation rectifying roller, and an upper guide strip is spirally arranged on the periphery of the upper deviation rectifying roller; the adjusting assembly is used for controlling the upper deviation rectifying assembly to be close to or away from the lower deviation rectifying assembly in the vertical direction. According to the utility model, the upper and lower deviation rectifying rollers are arranged, the filter cloth is extruded by the double-layer rollers to limit the motion space, the upper and lower guide strips are matched to improve the sludge hanging phenomenon on the filter cloth, the deviation is reduced, the rotating directions and rotating speeds of the upper and lower deviation rectifying rollers are controlled according to actual conditions, different deviation rectifying requirements are met, and the deviation rectifying efficiency is improved. The adjusting assembly is used for controlling the position of the upper deviation rectifying assembly, the gap between the upper deviation rectifying roller and the lower deviation rectifying roller is changed to control the extrusion pressure of the filter cloth, and deviation is controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter cloth rectification technical field especially relates to a double -decked roller rectification control device. BACKGROUND

[0002] Sludge drying technology involves a process of effectively removing most of the water in sludge through a filtration or evaporation mechanism. This process is usually carried out after the sludge has been treated by concentration, aiming to further reduce the water content of the sludge using physical means, so as to facilitate the transportation, accumulation, resource utilization or subsequent deep treatment of the sludge.

[0003] Sludge filter cloth, as a special filter medium, can efficiently separate water from slurry during sludge dewatering, achieving effective dewatering of sludge. However, in actual application, when the sludge is separated from the filter cloth by the action of the equipment, the filter cloth tends to vibrate due to the unloading of the sludge weight. This vibration phenomenon can cause relative displacement between the rollers at both ends of the filter cloth and the filter cloth, and further cause continuous friction of the side edges of the filter cloth inside the equipment. Such friction not only accelerates the wear of the filter cloth, but also significantly shortens its service life.

[0004] In view of the possible deviation of the filter cloth during the dewatering process, the current rectification technology mainly adopts a single roller left-right moving type rectification scheme. The advantages of this scheme are relatively simple structure, convenient operation and easy maintenance. However, its limitations are also quite obvious: the rectification effect is limited, the response speed is slow, and the rectification distance is difficult to accurately control. In addition, this scheme can only support forward rectification and is powerless for reverse deviation, thereby limiting its application range and effect to some extent. SUMMARY

[0005] The technical problem to be solved by the utility model is: in order to solve the technical problems existing in the prior art, the utility model provides a double -decked roller rectification control device, which has fast rectification speed, can realize same -direction rectification, opposite rectification, large rectification amplitude and high accuracy.

[0006] The technical scheme adopted by the utility model to solve its technical problem is: a double -decked roller rectification control device is used for rectifying filter cloth, which comprises:

[0007] A lower rectification assembly, the lower rectification assembly comprises a rotatable lower rectification roller, and a lower guide strip is spirally arranged on the outer periphery of the lower rectification roller;

[0008] An upper rectification assembly, the upper rectification assembly comprises a rotatable upper rectification roller, the upper rectification roller is arranged in parallel with the lower rectification roller, the filter cloth is located between the upper rectification roller and the lower rectification roller, and an upper guide strip is spirally arranged on the outer periphery of the upper rectification roller;

[0009] an adjusting assembly for controlling the upper deviation-correcting assembly to move closer to or farther away from the lower deviation-correcting assembly in a vertical direction.

[0010] The specific technical effect is that: by setting the upper and lower deviation-correcting rollers, the filter cloth is limited in the movement space by being squeezed by the double-layer rollers, which reduces the deviation compared with a single-layer roller, and can also smooth out wrinkles; the upper and lower deviation-correcting rollers are both provided with guide strips, which can rotate with the upper and lower deviation-correcting rollers and play a role in scraping mud, improving the phenomenon of mud hanging on the filter cloth, reducing the amount of sludge, and further reducing the occurrence of filter cloth deviation; and the upper and lower deviation-correcting rollers are designed to be rotatable, so that the rotating direction of the upper and lower deviation-correcting rollers can be controlled according to the actual situation to meet different deviation-correcting needs (such as deviation correction in the same direction, deviation correction in opposite directions, etc.), the deviation correction range is large and accurate, the rotating speed of the upper and lower deviation-correcting rollers is controlled, the speed difference between the upper and lower deviation-correcting rollers is used to control the deviation correction, the deviation correction speed is fast, the position of the upper deviation-correcting assembly is controlled by the adjusting assembly, the gap between the upper and lower deviation-correcting rollers is changed to control the squeezing pressure of the filter cloth, and the occurrence of deviation is controlled.

[0011] Further, the upper guide strip includes two first parts, both of which are spirally arranged from the midpoint of the upper deviation-correcting roller to both ends, and the spiral directions of the two first parts are the same.

[0012] The specific technical effect is that: the spiral directions of the two first parts are the same, and they are spirally arranged from the midpoint of the upper deviation-correcting roller to both ends, which can remove the sludge on the filter cloth to both ends during the rotation of the upper deviation-correcting roller, or stretch the filter cloth to both ends during the unwinding process through the action of the two first parts.

[0013] Further, the lower guide strip includes two second parts, both of which are spirally arranged from the midpoint of the lower deviation-correcting roller to both ends, and the spiral directions of the two second parts are the same, and the spiral direction of the first part is opposite to that of the second part.

[0014] The specific technical effect is that: the spiral directions of the two second parts are the same, and they are spirally arranged from the midpoint of the lower deviation-correcting roller to both ends, which can remove the sludge on the filter cloth to both ends during the rotation of the lower deviation-correcting roller, or stretch the filter cloth to both ends during the unwinding process through the action of the two second parts; and because the spiral direction of the first part is opposite to that of the second part, the upper and lower deviation-correcting rollers rotate, the first part and the second part cooperate to better stretch the upper and lower surfaces of the filter cloth and scrape mud during the rotation of the upper and lower deviation-correcting rollers.

[0015] Further, the upper deviation-correcting assembly further includes: a roller, the upper deviation-correcting roller is rotatably arranged on the roller, and the adjusting assembly is connected with the roller and is used to control the roller to move closer to or farther away from the lower deviation-correcting assembly in a vertical direction.

[0016] Further, the adjusting assembly comprises a step gear, a step rack and a step motor, the step rack is arranged on the roller, the step rack is arranged in a vertical direction, the step gear is matched with the step rack, and the step gear is connected with the output end of the step motor.

[0017] The specific technical effect is that: the step motor matched with the step gear can accurately control the vertical movement of the step rack, thereby adjusting the position of the roller, and finally accurately changing the gap between the upper and lower deviation correction rollers to control the filter cloth extrusion pressure and control the deviation.

[0018] Further, the upper deviation correction assembly further comprises an upper deviation correction motor, and the upper deviation correction motor is used for controlling the rotation of the upper deviation correction roller.

[0019] Further, the lower deviation correction assembly further comprises a lower deviation correction motor, and the lower deviation correction motor is used for controlling the rotation of the lower deviation correction roller.

[0020] Further, the upper deviation correction motor and the lower deviation correction motor are both variable frequency motors.

[0021] The specific technical effect is that: the upper deviation correction motor and the lower deviation correction motor are both variable frequency motors, which can control the rotation direction and speed of the upper and lower deviation correction rollers respectively, adapt to various deviation correction requirements, and accelerate the deviation correction process through the cooperation of the upper and lower deviation correction rollers.

[0022] Further, it further comprises a deviation correction light curtain, the deviation correction light curtain is arranged on one side of the upper deviation correction roller and is used for detecting the boundary position of the filter cloth, the deviation correction light curtain is connected with an external controller, and the external controller is connected with the upper deviation correction motor and the lower deviation correction motor.

[0023] The specific technical effect is that: the deviation correction light curtain can accurately measure the boundary position of the filter cloth, quickly perceive and feed back the information to the external controller when the filter cloth deviates during the transmission process, and then control the rotation direction and speed of the upper deviation correction motor and / or the lower deviation correction motor in real time, so as to realize accurate deviation correction of the material. Through accurate deviation correction, the deviation correction light curtain can ensure the stability and accuracy of the filter cloth during the transmission process, thereby ensuring the quality and consistency of the product, enhancing the automation degree of the whole production line, and improving the production efficiency.

[0024] Further, the two sides of the lower deviation correction roller are respectively provided with adjusting rollers, the adjusting rollers are arranged in parallel with the lower deviation correction roller and are higher than the lower deviation correction roller, and an included angle a is formed between the adjusting rollers and the horizontal direction.

[0025] The specific technical effect is that the adjusting roller is designed to be higher than the lower deviation correcting roller to provide support, so that the filter cloth is inclined upward on both sides after passing through the upper and lower deviation correcting rollers, and the filter cloth can be attached to the upper and lower deviation correcting rollers during conveying.

[0026] Compared with the prior art, the utility model has the beneficial effects that:

[0027] (1), the utility model discloses a upper deviation correcting roller and lower deviation correcting roller are set up, and the movement space of filter cloth is limited by the extrusion of double-layered roller, compared with single-layered roller, the occurrence of deviation is reduced, and wrinkles can be smoothed.

[0028] (2), the utility model discloses a upper deviation correcting roller and lower deviation correcting roller are set up, and the movement space of filter cloth is limited by the extrusion of double-layered roller, compared with single-layered roller, the occurrence of deviation is reduced, and wrinkles can be smoothed.

[0029] (3), the utility model discloses a upper deviation correcting roller and lower deviation correcting roller are set up, and the movement space of filter cloth is limited by the extrusion of double-layered roller, compared with single-layered roller, the occurrence of deviation is reduced, and wrinkles can be smoothed.

[0030] (4), the utility model discloses a upper deviation correcting roller and lower deviation correcting roller are set up, and the movement space of filter cloth is limited by the extrusion of double-layered roller, compared with single-layered roller, the occurrence of deviation is reduced, and wrinkles can be smoothed. BRIEF DESCRIPTION OF DRAWINGS

[0031] The utility model is further described below in connection with the drawings and examples.

[0032] Figure 1 It is the structure schematic drawing of a double-layered roller deviation correcting control device of the utility model;

[0033] Figure 2 It is the structure schematic drawing of the use state of the utility model;

[0034] Figure 3 It is the structure schematic drawing of the upper guide strip of the utility model;

[0035] Figure 4 It is the structure schematic drawing of the lower guide strip of the utility model.

[0036] In the figure: 1, filter cloth; 2, lower deviation rectification assembly; 201, lower deviation rectification roller; 202, lower guide bar; 203, second part; 204, lower deviation rectification motor; 3, upper deviation rectification assembly; 301, upper deviation rectification roller; 302, upper guide bar; 303, first part; 304, roller; 305, upper deviation rectification motor; 4, adjusting assembly; 401, step gear; 402, step rack; 403, step motor; 5, deviation rectification light curtain; 6, adjusting roller. DETAILED DESCRIPTION

[0037] The utility model will be explained in further detail now in combination with the drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the utility model in a schematic manner, so they only show the structure related to the utility model.

[0038] In the description of the utility model, it is to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the utility model. In addition, the features limited as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0039] In the description of the utility model, it is to be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0040] As Figures 1 to 4As shown, it is the optimal embodiment of the utility model, a double layer roller deviation correction control device for correcting deviation of filter cloth 1, wherein, it includes: lower deviation correction assembly 2, upper deviation correction assembly 3 and adjusting assembly 4, lower deviation correction assembly 2 includes a rotatable lower deviation correction roller 201, and lower deviation correction roller 201 is spirally provided with lower guide strip 202 on the outer periphery thereof; upper deviation correction assembly 3 includes a rotatable upper deviation correction roller 301, and upper deviation correction roller 301 is arranged in parallel with lower deviation correction roller 201, and filter cloth 1 is located between upper deviation correction roller 301 and lower deviation correction roller 201, and upper deviation correction roller 301 is spirally provided with upper guide strip 302 on the outer periphery thereof; adjusting assembly 4 is used to control upper deviation correction assembly 3 to move closer to or away from lower deviation correction assembly 2 along the vertical direction.

[0041] Therefore, by arranging upper and lower deviation correction rollers, the movement space of filter cloth 1 is limited by the extrusion of double layer rollers, the occurrence of deviation is reduced compared with single layer roller 304, and wrinkles can be smoothed, the upper and lower deviation correction rollers are both provided with guide strips, the guide strips can rotate with the upper and lower deviation correction rollers, and the guide strips can scrape mud, the occurrence of deviation of filter cloth 1 can be further reduced by improving the phenomenon of mud hanging on filter cloth 1, and the occurrence of deviation of filter cloth 1 can be further reduced by reducing mud, the upper and lower deviation correction rollers are designed to be rotatable, the rotating direction of the upper and lower deviation correction rollers can be controlled according to actual conditions, different deviation correction requirements (such as same direction deviation correction and opposite direction deviation correction) can be met, the deviation correction range is large and accurate, the rotating speed of the upper and lower deviation correction rollers is controlled, the deviation correction is controlled by using the speed difference between the upper and lower deviation correction rollers, the deviation correction speed is fast, the position of upper deviation correction assembly 3 is controlled by adjusting assembly 4, the gap between the upper and lower deviation correction rollers is changed to control the extrusion pressure of filter cloth 1, and the occurrence of deviation is controlled.

[0042] In the embodiment, upper guide strip 302 includes two first portions 303, and the two first portions 303 are both spirally arranged from the midpoint of upper deviation correction roller 301 to both ends, and the spiral directions of the two first portions 303 are the same.

[0043] Therefore, the spiral directions of the two first portions 303 are the same, and the two first portions 303 are spirally arranged from the midpoint of upper deviation correction roller 301 to both ends, for example, as shown in Figure 3 As shown, the first portion 303 located on the left is spirally arranged in a clockwise direction from the midpoint of upper deviation correction roller 301 to the left end, and the first portion 303 located on the right is also spirally arranged in a clockwise direction from the midpoint of upper deviation correction roller 301 to the right end, and the mud on filter cloth 1 can be hung and removed to both ends or stretched to both ends under the action of the two first portions 303 in the process of unwinding.

[0044] In the embodiment, the lower guide strip 202 comprises two second parts 203, which are both arranged in a spiral shape from the midpoint of the lower deviation correction roller 201 to both ends, the spiral directions of the two second parts 203 are the same, and the spiral direction of the first part 303 is opposite to that of the second part 203.

[0045] Thus, the spiral directions of the two second parts 203 are the same, and the two second parts 203 are arranged in a spiral shape from the midpoint of the lower deviation correction roller 201 to both ends, for example, as shown in the figure, the second part 203 on the left is arranged in a counterclockwise spiral shape from the midpoint of the lower deviation correction roller 201 to the left end, and the second part 203 on the right is also arranged in a counterclockwise spiral shape from the midpoint of the lower deviation correction roller 201 to the right end, which can remove the sludge on the filter cloth 1 to both ends during the rotation of the lower deviation correction roller 201, or stretch the filter cloth 1 to both ends under the action of the two second parts 203 during the cloth spreading process, and because the spiral direction of the first part 303 is opposite to that of the second part 203, the first part 303 cooperates with the second part 203 during the rotation of the upper and lower deviation correction rollers to better stretch and scrape the sludge on the upper and lower surfaces of the filter cloth 1. Figure 4

[0046] In the embodiment, the upper and lower guide strips 202 are both welded on the upper and lower deviation correction rollers respectively.

[0047] In the embodiment, the upper deviation correction assembly 3 further comprises a roller 304, the upper deviation correction roller 301 is rotatably sleeved on the roller 304, and the adjusting assembly 4 is connected with the roller 304 and is used to control the roller 304 to move close to or away from the lower deviation correction assembly 2 along the vertical direction.

[0048] In the embodiment, the adjusting assembly 4 comprises a step gear 401, a step rack 402 and a step motor 403, the step rack 402 is arranged on the roller 304, the step rack 402 is arranged in the vertical direction, the step gear 401 cooperates with the step rack 402, and the step gear 401 is connected with the output end of the step motor 403.

[0049] Thus, the step motor 403 cooperates with the step gear 401 to accurately control the movement of the step rack 402 in the vertical direction, thereby adjusting the position of the roller 304, and finally accurately changing the gap between the upper and lower deviation correction rollers to control the filter cloth 1 extrusion pressure and control the deviation.

[0050] In the embodiment, the number of the step racks 402 is two, and one step rack 402 is welded on each end of the roller 304.

[0051] ​In the embodiment, the upper deviation rectifying assembly 3 further comprises an upper deviation rectifying motor 305, which is used to control the rotation of the upper deviation rectifying roller 301.

[0052] In the embodiment, the lower deviation rectifying assembly 2 further comprises a lower deviation rectifying motor 204, which is used to control the rotation of the lower deviation rectifying roller 201.

[0053] In the embodiment, the upper deviation rectifying motor 305 and the lower deviation rectifying motor 204 are both variable frequency motors.

[0054] Therefore, the upper deviation rectifying motor 305 and the lower deviation rectifying motor 204 are both variable frequency motors, which can control the rotation direction and rotation speed of the upper and lower deviation rectifying rollers respectively, adapt to various deviation rectifying requirements, and accelerate the deviation rectifying process through the cooperation of the upper and lower deviation rectifying rollers, so that the deviation rectifying speed is fast, the deviation rectifying amplitude is large, and the accuracy is high.

[0055] In the embodiment, the deviation rectifying light curtain 5 is arranged on one side of the upper deviation rectifying roller 301 and is used to detect the boundary position of the filter cloth 1.

[0056] Therefore, the deviation rectifying light curtain 5 can accurately measure the boundary position of the filter cloth 1, quickly perceive and feed back the information to the external controller when the filter cloth 1 deviates during the transmission process, and control the rotation direction and rotation speed of the upper deviation rectifying motor 305 and / or the lower deviation rectifying motor 204 in real time through the external controller, so that the material is accurately deviation rectified.

[0057] In the embodiment, the two sides of the lower deviation rectifying roller 201 are respectively provided with adjusting rollers 6, the adjusting rollers 6 are arranged in parallel with the lower deviation rectifying roller 201 and are higher than the lower deviation rectifying roller 201, and an included angle alpha is formed between the adjusting rollers 6 and the horizontal direction.

[0058] Therefore, the adjusting rollers 6 are designed to be higher than the lower deviation rectifying roller 201 to provide support, so that the filter cloth 1 is inclined upward on both sides after passing through the upper and lower deviation rectifying rollers, and the filter cloth 1 can be attached to the upper and lower deviation rectifying rollers during the conveying process.

[0059] The sludge pressure filtration process of the utility model comprises two processes of spreading and rolling, and specifically as follows:

[0060] The spreading process is as follows: Figure 2As shown, the spreading motor is located on the left side of the upper and lower deviation correction rollers, the filter cloth 1 passes between the upper and lower deviation correction rollers from right to left and is connected with the spreading motor, the lower surface of the filter cloth 1 is attached to the lower deviation correction roller 201, then the step motor 403 is started to control the movement of the step rack 402, and the step motor 403 cooperates with the step gear 401 to control the step rack 402 to move in the vertical direction, thereby adjusting the position of the roller 304, and then the upper deviation correction roller 301 moves downward to the spreading distance stop, at this time the upper surface of the filter cloth 1 is attached to the upper deviation correction roller 301, the spreading motor is started, and the filter cloth 1 moves from right to left under the driving of the spreading motor, at the same time, the upper deviation correction roller 301 rotates clockwise under the driving of the filter cloth 1 due to inertia, and the lower deviation correction roller 201 rotates counterclockwise under the driving of the filter cloth 1 due to inertia, so that the filter cloth 1 is stretched to both ends under the action of the upper and lower guide bars, the spreading is realized, the generation of deviation of the filter cloth 1 is effectively prevented, and wrinkles can be smoothed at the same time; when the deviation correction light curtain 5 detects that the filter cloth 1 deviates, the upper and lower deviation correction rollers can be controlled to move clockwise or counterclockwise for deviation correction through the button, or the upper deviation correction motor 305 can be controlled to rotate clockwise or counterclockwise for deviation correction through the external controller; when the spreading speed is relatively fast and the deviation correction is not timely, the rotation directions of the upper deviation correction motor 305 and the lower deviation correction motor 204 can be simultaneously controlled by the external controller to participate in the deviation correction.

[0061] The winding process is as follows: Figure 2 As shown, the winding motor is located on the right side of the upper and lower deviation correction rollers, the filter cloth 1 passes between the upper and lower deviation correction rollers from left to right and is connected with the winding motor, the lower surface of the filter cloth 1 is attached to the lower deviation correction roller 201, then the step motor 403 cooperates with the step gear 401 to control the step rack 402 to move in the vertical direction, thereby adjusting the position of the roller 304, and then the upper deviation correction roller 301 moves downward to the winding distance stop, because the pressure filtration is completed, the filter cloth 1 has un-fallen sludge, and the upper and lower guide bars need to scrape off the sludge, so the upper deviation correction roller 301 needs to press the filter cloth 1 on the lower deviation correction roller 201, therefore the gap between the upper deviation correction roller 301 and the lower deviation correction roller 201 in the winding process is smaller than the gap between the upper deviation correction roller 301 and the lower deviation correction roller 201 in the spreading process, the winding motor is started, and the filter cloth 1 moves from left to right under the driving of the winding motor, at the same time, the upper deviation correction roller 301 rotates counterclockwise under the driving of the filter cloth 1 due to inertia, and the lower deviation correction roller 201 rotates clockwise under the driving of the filter cloth 1 due to inertia, so that the residual sludge on the filter cloth 1 is scraped off to both ends under the action of the upper and lower guide bars 202; when the deviation correction light curtain 5 detects that the filter cloth 1 deviates, because the winding speed is generally fast, the upper and lower deviation correction motors 204 need to work simultaneously to participate in the deviation correction, therefore the rotation directions and speeds of the upper deviation correction motor 305 and the lower deviation correction motor 204 are controlled in real time by the external controller fed back by the deviation correction light curtain 5, to adapt to various deviation correction requirements.

[0062] Specifically, referenceFigure 1 The deviation correction process is illustrated below by citing a few examples as shown in the following table:

[0063] When the filter cloth 1 is greatly deviated to the left, the upper and lower deviation correction rollers can be controlled to rotate in the clockwise direction simultaneously;

[0064] When the filter cloth 1 is greatly deviated to the right, the upper and lower deviation correction rollers can be controlled to rotate in the counterclockwise direction simultaneously;

[0065] When there is a wrinkle on the left side of the filter cloth 1, the clockwise rotation speed of the upper deviation correction roller 301 can be increased, and the filter cloth 1 can be stretched and the wrinkle can be smoothed by using the speed difference between the upper and lower deviation correction rollers;

[0066] When there is a wrinkle on the right side of the filter cloth 1, the counterclockwise rotation speed of the upper deviation correction roller 301 can be increased, and the filter cloth 1 can be stretched and the wrinkle can be smoothed by using the speed difference between the upper and lower deviation correction rollers.

[0067] Compared with the prior art, the utility model has the beneficial effects that:

[0068] (1), the utility model discloses a set up upper and lower deviation correction roller, and the filter cloth 1 is limited to the movement space by the extrusion of double-layered roller, and compared with single-layered roller 304, the deviation is reduced, and the wrinkle can be smoothed simultaneously.

[0069] (2), the utility model discloses a set of guide strip on the upper and lower deviation correction roller, and the guide strip can rotate with the upper and lower deviation correction roller, and the guide strip can scrape mud, and the filter cloth 1 can be improved on the mud phenomenon, and the reduction of sludge can further reduce the deviation of the filter cloth 1, and because.

[0070] (3), the utility model discloses that the upper and lower deviation correction roller can rotate, and the rotation direction of the upper and lower deviation correction roller can be controlled according to the actual situation, so that different deviation correction requirements (such as same direction deviation correction, opposite direction deviation correction and the like) are met, the deviation correction range is large and accurate, the rotation speed of the upper and lower deviation correction roller is controlled, the deviation correction is controlled by using the speed difference between the upper and lower deviation correction rollers, and the deviation correction speed is fast.

[0071] (4), the utility model discloses that the adjusting assembly 4 is used for controlling the position of the upper deviation correction assembly 3, the gap between the upper and lower deviation correction rollers is changed to control the extrusion pressure of the filter cloth 1, and the deviation is controlled.

[0072] The above-mentioned ideal embodiments of the utility model are used as inspiration, and through the description, relevant staff can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of the utility model is not limited to the content in the specification, and must be determined by the scope of claims.

Claims

1. A double-layered roller deviation control device for filtering cloth (1) deviation correction, characterized in that, The application relates to a filter cloth rectifying device. The lower rectifying assembly (2) comprises a rotatable lower rectifying roller (201), and a lower guide strip (202) is spirally arranged on the outer periphery of the lower rectifying roller (201); The upper rectifying assembly (3) comprises a rotatable upper rectifying roller (301), the upper rectifying roller (301) is arranged in parallel with the lower rectifying roller (201), the filter cloth (1) is located between the upper rectifying roller (301) and the lower rectifying roller (201), and an upper guide strip (302) is spirally arranged on the outer periphery of the upper rectifying roller (301); The adjusting assembly (4) is used for controlling the upper rectifying assembly (3) to move close to or away from the lower rectifying assembly (2) in the vertical direction.

2. A dual layer roller deviation control device as claimed in claim 1, wherein, The upper guide strip (302) comprises two first parts (303), the two first parts (303) are spirally arranged from the midpoint of the upper rectifying roller (301) to both ends, and the spiral directions of the two first parts (303) are the same.

3. A dual roller deviation control device as claimed in claim 2, wherein, The lower guide strip (202) comprises two second parts (203), the two second parts (203) are spirally arranged from the midpoint of the lower rectifying roller (201) to both ends, and the spiral directions of the two second parts (203) are the same, and the spiral direction of the first part (303) is opposite to that of the second part (203).

4. The dual layer roller deviation control device of claim 1, wherein, The upper rectifying assembly (3) further comprises a roller (304), the upper rectifying roller (301) is rotatably sleeved on the roller (304), and the adjusting assembly (4) is connected with the roller (304) and is used for controlling the roller (304) to move close to or away from the lower rectifying assembly (2) in the vertical direction.

5. A dual layer roller deviation control device as claimed in claim 4, wherein, The adjusting assembly (4) comprises a stepping gear (401), a stepping rack (402) and a stepping motor (403), the stepping rack (402) is arranged on the roller (304) and extends in the vertical direction, the stepping gear (401) is matched with the stepping rack (402), and the stepping gear (401) is connected with the output end of the stepping motor (403).

6. A dual layer roller deviation control device as claimed in claim 1, wherein, The upper rectifying assembly (3) further comprises an upper rectifying motor (305), and the upper rectifying motor (305) is used for controlling the upper rectifying roller (301) to rotate.

7. A dual roller deviation control device as claimed in claim 6, wherein, The lower rectifying assembly (2) further comprises a lower rectifying motor (204), and the lower rectifying motor (204) is used for controlling the lower rectifying roller (201) to rotate.

8. A dual layer roller deviation control device as claimed in claim 7, wherein, Both the upper rectifying motor (305) and the lower rectifying motor (204) are variable frequency motors.

9. A dual roller deviation control device as claimed in claim 7, wherein, The application further relates to a rectifying light curtain (5) which is arranged on one side of the upper rectifying roller (301) and is used for detecting the boundary position of the filter cloth (1), the rectifying light curtain (5) is connected with an external controller, and the external controller is connected with the upper rectifying motor (305) and the lower rectifying motor (204). ​ 10. The dual layer roller deviation control device of claim 1, wherein, Two sides of the lower deviation correction roller (201) are respectively provided with an adjusting roller (6), the adjusting roller (6) is arranged in parallel with the lower deviation correction roller (201) and is higher than the lower deviation correction roller (201), and an included angle alpha is formed between the adjusting roller (6) and the horizontal direction.

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