Carrier roller cleaning device

Abstract

The utility model provides a carrier roller cleaning device which comprises a material receiving box arranged below a carrier roller and used for receiving dirt falling from the carrier roller; the scraper mechanism is arranged in the material receiving box and comprises a mounting frame, a scraper, a lead screw nut and a sliding block, the lead screw nut and the sliding block are both arranged on the mounting frame, the scraper is fixedly connected with the sliding block, and a blade of the scraper faces the outer circumferential surface of the carrier roller; the guide rail is arranged in the material receiving box, the guide rail is parallel to the carrier rollers, and the sliding block is connected to the guide rail in a sleeving mode and can slide along the guide rail in a reciprocating mode; the lead screw is arranged in the material receiving box, the lead screw is parallel to the carrier roller, the lead screw can rotate around the axis of the lead screw, the lead screw nut is connected to the lead screw in a sleeving mode, and the scraper mechanism can be driven to move in the axial direction of the carrier roller when the lead screw rotates. The carrier roller cleaning device can improve the carrier roller cleaning efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying, in particular to a roller cleaning device. Background Art

[0002] Belt conveyors are commonly used in the silk-making workshop of a cigarette factory to transport tobacco materials. The belt conveyor mainly includes a driving mechanism, a driving wheel, a driven wheel, a roller and a belt. Among them, the belt is sleeved on the driving wheel and the driven wheel. The roller is arranged under the belt to support the belt. The driving mechanism drives the driving wheel to rotate to drive the belt to run in the conveying direction. During the conveying process, tobacco material fragments inevitably fall from the belt to the roller. Since the tobacco materials that have been moistened and flavored have the characteristics of high temperature and high humidity, tobacco material fragments can easily adhere to the rollers to form scale. If the scale on the rollers is not cleaned in time, it is easy to cause the belt to become dirty and worn. At present, the applicant mainly relies on manually holding a scraper to scrape off the scale on the outer circumference of the roller. Each time the roller is cleaned, the belt conveyor needs to be stopped, and the cleaning efficiency is low. Utility Model Content

[0003] The utility model aims to solve the technical problems of low efficiency and incomplete cleaning of idlers by manual cleaning. The utility model provides an idler cleaning device, which can improve the cleaning efficiency of the idler.

[0004] In order to solve the above technical problems, the embodiment of the utility model provides a roller cleaning device for cleaning the rollers of a belt conveyor, including a material receiving box, a scraper mechanism, a guide rail and a screw. Among them, the material receiving box is arranged below the roller, and the material receiving box is used to receive the dirt dropped from the roller. The scraper mechanism is arranged in the material receiving box, and the scraper mechanism includes a mounting frame, a scraper, a screw nut and a slider. The screw nut and the slider are both arranged on the mounting frame. The scraper is fixedly connected to the slider, and the blade of the scraper faces the outer circumferential surface of the roller. The guide rail is arranged in the material receiving box, the guide rail is parallel to the roller, and the slider is sleeved on the guide rail and can slide back and forth along the guide rail. The screw is arranged in the material receiving box, the screw is parallel to the roller, and the screw can rotate around its own axis. The screw nut is sleeved on the screw, and when the screw rotates, it can drive the scraper mechanism to move along the axial direction of the roller.

[0005] Optionally, the material receiving box is a rectangular box with an opening facing upward, and the projection of the roller falls into the material receiving box along the vertical direction. The material receiving box includes a bottom plate, two oppositely arranged side plates and two oppositely arranged end plates. The two end plates are respectively arranged near the two ends of the roller, and the screw rod and guide rail are connected to the end plates.

[0006] Optionally, two ends of the screw rod are rotatably connected to two end plates respectively, and at least one end plate is provided with a driving mechanism, which is connected to the screw rod and is used to drive the screw rod to rotate.

[0007] Optionally, the guide rail is a spline shaft and the slider is a ball spline cylinder.

[0008] Optionally, the two ends of the spline shaft are rotatably connected to the two end plates respectively, the ball spline cylinder is rotatably connected to the mounting frame, and the spline shaft can rotate around its own axis. When the spline shaft rotates, it can drive the ball spline cylinder and the scraper to rotate relative to the mounting frame, so that the scraper blade is close to or away from the outer circumferential surface of the roller.

[0009] Optionally, at least one end plate is provided with a fixing mechanism, which is connected to the spline shaft and can limit the rotation of the spline shaft.

[0010] Optionally, an arc groove is provided on the end plate, the center of the arc groove is located on the axis of the spline shaft, and the fixing mechanism includes:

[0011] A connecting piece, one end of which is fixedly connected to the end of the spline shaft and the other end of which is provided with a through hole;

[0012] The bolt is inserted into the through hole and the arc groove, and when the spline shaft rotates, the bolt can be driven to move in the arc groove;

[0013] The butterfly nut is threadedly connected to the bolt. When the butterfly nut is tightened, the connecting piece can be fixed on the end plate to prevent the spline shaft from rotating.

[0014] Optionally, it also includes a bracket, which is arranged below the roller and is detachably connected to the frame of the belt conveyor, and the material receiving box is arranged inside the frame; both ends of the material receiving box along the axial direction of the roller are provided with lifting mechanisms, the lifting mechanisms are connected to the bracket, and the lifting mechanisms are used to adjust the height of the material receiving box.

[0015] Optionally, the lifting mechanism comprises:

[0016] The screw is arranged on the bracket and can rotate around its own axis;

[0017] The threaded hole is arranged on the bottom plate of the material receiving box, and the threaded hole is threadedly connected with the screw rod. When the screw rod rotates, it can drive the material receiving box to move in the vertical direction.

[0018] Optionally, a positioning mechanism is provided on the side plate of the receiving box, and the positioning mechanism is used to limit the upper limit of the height of the receiving box moving in the vertical direction, and the positioning mechanism includes:

[0019] The shell is arranged on the upper edge of the side plate, and the two sides of the shell are detachably connected to the two side plates respectively;

[0020] Two positioning shafts, each positioning shaft is arranged inside the shell, the positioning shaft extends along the axial direction of the roller, and along the vertical direction, the projection of the axis of the roller falls between the two positioning shafts;

[0021] Two rollers are respectively sleeved on each positioning shaft and can rotate around the positioning shaft. When the lifting mechanism lifts the roller cleaning device to a preset height for cleaning, the outer circumferential surface of each roller contacts the outer circumferential surface of the roller.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The implementation method of the utility model is to arrange a material receiving box below the roller to facilitate the recovery of dirt dropped on the roller. By arranging a scraper mechanism, a screw and a guide rail extending along the axial direction of the roller in the material receiving box, and passing the screw and the guide rail through the scraper mechanism, the rotational freedom of the scraper mechanism can be limited, the scraper mechanism is prevented from rotating around the screw, and the stability of the scraper mechanism is improved. The screw nut of the scraper mechanism is threadedly connected to the screw, and when the screw rotates, the scraper mechanism can be driven to move along the axial direction of the roller, so that the blade of the scraper can contact various places on the outer circumference of the roller, which is convenient for cleaning the entire outer circumference of the roller, thereby improving the cleaning efficiency of the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A structural view showing the matching of the roller cleaning device and the roller provided by one embodiment of the utility model;

[0025] Figure 2 A structural view of a roller cleaning device provided by an embodiment of the utility model is shown;

[0026] Figure 3 A schematic diagram showing a scraper mechanism provided by an embodiment of the utility model;

[0027] Figure 4 A schematic diagram showing a fixing mechanism provided by an embodiment of the utility model is shown;

[0028] Figure 5 A schematic diagram showing a positioning mechanism provided in one embodiment of the utility model.

[0029] Reference numerals:

[0030] 1. roller, 2. receiving box, 3. scraper mechanism, 4. mounting frame, 5. scraper, 6. screw nut, 7. screw, 8. bottom plate, 9. side plate, 10. end plate, 11. spline shaft, 12. ball spline cylinder, 13. fixing mechanism, 14. arc groove, 15. connecting plate, 16. bolt, 17. butterfly nut, 18. bracket, 19. lifting mechanism, 20. screw, 21. vertical surface, 22. shell, 23. positioning shaft, 24. roller, 25. frame. DETAILED DESCRIPTION

[0031] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0032] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0033] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0034] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0035] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0036] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0037] In order to solve the above technical problems, the embodiment of the utility model provides a roller cleaning device for cleaning the roller 1 of the belt conveyor, such as Figure 1As shown, the roller cleaning device includes a material receiving box 2, a scraper mechanism 3, a guide rail and a screw 7. Among them, the material receiving box 2 is arranged below the roller 1, and the material receiving box 2 is used to receive the dirt dropped from the roller 1. The scraper mechanism 3 is arranged in the material receiving box 2, and the scraper mechanism 3 includes a mounting frame 4, a scraper 5, a screw nut 6 and a slider. The screw nut 6 and the slider are both arranged on the mounting frame 4. The scraper 5 is fixedly connected to the slider, and the blade of the scraper 5 faces the outer circumferential surface of the roller 1. The guide rail is arranged in the material receiving box 2, the guide rail is parallel to the roller 1, and the slider is sleeved on the guide rail and can slide back and forth along the guide rail. The screw 7 is arranged in the material receiving box 2, the screw 7 is parallel to the roller 1, and the screw 7 can rotate around its own axis. The screw nut 6 is sleeved on the screw 7 and is threadedly connected with the screw 7. When the screw 7 rotates, it can drive the scraper mechanism 3 to move along the axial direction of the roller 1.

[0038] By adopting the above technical solution, by arranging a scraper mechanism 3 below the roller 1, so that the scraper 5 on the scraper mechanism 3 faces the outer circumferential surface of the roller 1, when dirt adheres to the outer circumferential surface of the roller 1, the blade of the scraper 5 can scrape off the dirt during the rotation of the roller 1. By arranging a material receiving box 2 below the roller 1, it is convenient to recover the dirt that falls on the roller 1. Compared with the handheld scraper 5 for scraping off the dirt on the roller 1 in the prior art, the cleaning device of the present application is safer and more convenient. In addition, by arranging a screw rod 7 and a guide rail extending along the axial direction of the roller 1, and making the screw rod 7 and the guide rail pass through the scraper mechanism 3, the rotational freedom of the scraper mechanism 3 can be limited, and the torque is prevented from being applied to the scraper mechanism 3 during the rotation of the roller 1, so that the scraper 5 is away from the roller 1, and the stability of the scraper mechanism 3 is improved. The screw nut 6 of the scraper mechanism 3 is threadedly connected to the screw 7. When the screw 7 rotates, it can drive the scraper mechanism 3 to move along the axial direction of the roller 1, so that the blade of the scraper 5 can contact various places on the outer circumference of the roller 1, which is convenient for cleaning the entire outer circumference of the roller 1, thereby improving the cleaning efficiency of the roller 1.

[0039] Furthermore, if Figure 1 and Figure 2 As shown, the material receiving box 2 is a rectangular box with an opening facing upward. In the vertical direction, the projection of the roller 1 falls into the material receiving box 2. The material receiving box 2 includes a bottom plate 8, two oppositely arranged side plates 9 and two oppositely arranged end plates 10. The two end plates 10 are respectively arranged near the two ends of the roller 1, wherein the side plates 9 and the bottom plate 8 are parallel to the axial direction of the roller 1, and the end plates 10 are perpendicular to the axial direction of the roller 1. The screw rod 7 and the two ends of the guide rail are connected to the end plates 10. Specifically, the two ends of the screw rod 7 are rotatably connected to the two end plates 10 respectively, and at least one end plate 10 is provided with a driving mechanism, which is connected to the screw rod 7. The driving mechanism is used to drive the screw rod 7 to rotate, so as to drive the scraper mechanism 3 to move along the axial direction of the roller 1. In this embodiment, the end plate 10 is detachably connected to the guide rail, the slider is fixedly connected to the mounting frame 4, and the position of the scraper 5 and the mounting frame 4 is relatively fixed.

[0040] In some embodiments, the guide rail is a spline shaft 11, and the slider is a ball spline cylinder 12. A ball is arranged between the ball spline cylinder 12 and the spline shaft 11. When the ball spline cylinder 12 moves along the spline shaft 11, rolling friction occurs between the ball and the spline shaft 11, and the friction force is extremely small, which improves the smoothness of the movement of the ball spline cylinder 12 along the spline shaft 11, thereby improving the smoothness of the axial movement of the scraper mechanism 3 along the roller 1. In addition, a convex ridge extending along the axial direction of the spline shaft 11 is arranged on the outer peripheral surface, and a groove extending along the axial direction of the spline shaft 11 is arranged on the inner wall of the ball spline cylinder 12. When the ball spline cylinder 12 is sleeved on the spline shaft 11, the convex ridge and the groove are matched (such as Figure 3 As shown in the figure, the ball spline cylinder 12 is limited to rotate around the spline shaft 11. The two ends of the spline shaft 11 are rotatably connected to the two end plates 10 respectively, and the ball spline cylinder 12 is rotatably connected to the mounting frame 4. The spline shaft 11 can rotate around its own axis. When the spline shaft 11 rotates, it can drive the ball spline cylinder 12 and the scraper 5 to rotate relative to the mounting frame 4, so that the blade of the scraper 5 is close to or away from the outer circumferential surface of the roller 1, so as to adjust the distance between the blade of the scraper 5 and the outer circumferential surface of the roller 1.

[0041] Furthermore, at least one end plate 10 is provided with a fixing mechanism 13, which is connected to the spline shaft 11 and can limit the rotation of the spline shaft 11 (e.g. Figure 4 Specifically, when cleaning the roller 1, as the spline shaft 11 rotates, the blade of the scraper 5 rotates around the axis of the spline shaft 11 and gradually approaches or moves away from the outer circumferential surface of the roller 1. When the blade rotates to a preset position, the spline shaft 11 can be fixed by a fixing mechanism 13 to limit the rotation of the spline shaft 11, so that the blade remains in the preset position for cleaning.

[0042] Furthermore, if Figure 4 As shown, an arc groove 14 is provided on the end plate 10, and the center of the arc groove 14 is located on the axis of the spline shaft 11. The fixing mechanism 13 includes a connecting piece 15, a bolt 16, and a butterfly nut 17. Among them, one end of the connecting piece 15 is fixedly connected to the end of the spline shaft 11, and the other end is provided with a through hole. The bolt 16 is inserted into the through hole and the arc groove 14. When the spline shaft 11 rotates, it can drive the bolt 16 to move in the arc groove 14. The butterfly nut 17 is threadedly connected to the bolt 16. When the butterfly nut 17 is tightened, the connecting piece 15 can be fixed on the end plate 10 to prevent the spline shaft 11 from rotating. After completing the cleaning operation, the operator can loosen the butterfly nut 17 and rotate the spline shaft 11 to drive the scraper 5 to leave the preset position and gradually move away from the roller 1.

[0043] Furthermore, if Figure 1 and Figure 2As shown, the roller cleaning device also includes a bracket 18, which is arranged below the roller 1 and is detachably connected to the frame of the belt conveyor, and the material receiving box 2 is arranged inside the frame; both ends of the material receiving box 2 along the axial direction of the roller 1 are provided with a lifting mechanism 19, and the lifting mechanism 19 is connected to the bracket 18, and the lifting mechanism 19 is used to adjust the height of the material receiving box 2. Specifically, further, the lifting mechanism 19 includes a screw 20, which is arranged on the bracket 18 and can rotate around its own axis. A threaded hole is provided on the bottom plate 8 of the material receiving box 2, and the threaded hole is threadedly connected to the screw 20. When the screw 20 rotates, it can drive the material receiving box 2 to move in the vertical direction. In this embodiment, a vertical surface 21 extending in the vertical direction is provided on the bracket 18, and the outer surfaces of the two side plates 9 of the material receiving box 2 are in contact with the vertical surface 21. The vertical surface 21 can guide the material receiving box 2 and limit the swing of the material receiving box 2 relative to the bracket 18.

[0044] Furthermore, if Figure 1 and Figure 2 As shown, a positioning mechanism is provided on the side plate 9 of the receiving box 2, and the positioning mechanism is used to limit the upper limit of the height of the receiving box 2 moving in the vertical direction. The positioning mechanism includes a housing 22, two positioning shafts 23 and two rollers 24. Figure 5 As shown, the shell 22 is arranged on the upper edge of the side plate 9, and the two sides of the shell 22 are detachably connected to the two side plates 9. Each positioning shaft 23 is arranged inside the shell 22, and the positioning shaft 23 extends along the axial direction of the roller 1. In the vertical direction, the projection of the axis of the roller 1 falls between the two positioning shafts 23. Each roller 24 is respectively sleeved on each positioning shaft 23 and can rotate around the positioning shaft 23. When the lifting mechanism 19 lifts the roller cleaning device to a preset height for cleaning, the outer circumferential surface of each roller 24 contacts the outer circumferential surface of the roller 1, which can not only limit the upper limit of the height of the receiving box 2 in the vertical direction, but also limit the lateral movement of the receiving box 2 ( Figure 1 and Figure 5 The X direction is shown in the middle), so as to prevent the roller cleaning device from shaking relative to the roller 1, thereby ensuring that the distance between the scraper 5 and the roller 1 is stable and unchanged.

[0045] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A roller cleaning device for cleaning the rollers of a belt conveyor, characterized in that: The roller cleaning device includes: A material receiving box is arranged below the roller, and is used to receive dirt dropped from the roller; A scraper mechanism is arranged in the material receiving box, and the scraper mechanism comprises a mounting frame, a scraper, a screw nut and a slider, the screw nut and the slider are both arranged on the mounting frame, the scraper is fixedly connected to the slider, and the blade of the scraper faces the outer circumferential surface of the roller; A guide rail is arranged in the material receiving box, the guide rail is parallel to the roller, and the slider is sleeved on the guide rail and can slide back and forth along the guide rail; A screw rod is arranged in the material receiving box, the screw rod is parallel to the roller, and the screw rod can rotate around its own axis. The screw rod nut is sleeved on the screw rod, and when the screw rod rotates, it can drive the scraper mechanism to move along the axial direction of the roller.

2. The roller cleaning device according to claim 1, characterized in that: The material receiving box is a rectangular box with an opening facing upward. Along the vertical direction, the projection of the roller falls into the material receiving box. The material receiving box includes a bottom plate, two oppositely arranged side plates and two oppositely arranged end plates. The two end plates are respectively arranged close to the two ends of the roller, and the screw rod and the guide rail are connected to the end plates.

3. The roller cleaning device according to claim 2, characterized in that: The two ends of the screw rod are rotatably connected to the two end plates respectively, and at least one of the end plates is provided with a driving mechanism, which is connected to the screw rod and is used to drive the screw rod to rotate.

4. The roller cleaning device according to claim 3, characterized in that: The guide rail is a spline shaft, and the slider is a ball spline cylinder.

5. The roller cleaning device according to claim 4, characterized in that: The two ends of the spline shaft are rotatably connected to the two end plates respectively, the ball spline cylinder is rotatably connected to the mounting frame, and the spline shaft can rotate around its own axis. When the spline shaft rotates, it can drive the ball spline cylinder and the scraper to rotate relative to the mounting frame, so that the blade of the scraper is close to or away from the outer circumferential surface of the roller.

6. The roller cleaning device according to claim 5, characterized in that: At least one of the end plates is provided with a fixing mechanism, the fixing mechanism is connected to the spline shaft, and the fixing mechanism can limit the rotation of the spline shaft.

7. The roller cleaning device according to claim 6, characterized in that: The end plate is provided with an arc groove, the center of which is located on the axis of the spline shaft, and the fixing mechanism comprises: A connecting piece, one end of which is fixedly connected to the end of the spline shaft and the other end of which is provided with a through hole; A bolt is inserted into the through hole and the arc groove, and can drive the bolt to move in the arc groove when the spline shaft rotates; A butterfly nut is threadedly connected to the bolt, and when the butterfly nut is tightened, the connecting piece can be fixed on the end plate to prevent the spline shaft from rotating.

8. The roller cleaning device according to claim 7, characterized in that: It also includes a bracket, which is arranged below the roller and is detachably connected to the frame of the belt conveyor, and the material receiving box is arranged inside the frame; both ends of the material receiving box along the axial direction of the roller are provided with lifting mechanisms, and the lifting mechanisms are connected to the bracket, and the lifting mechanisms are used to adjust the height of the material receiving box.

9. The roller cleaning device according to claim 8, characterized in that: The lifting mechanism comprises: A screw rod is arranged on the bracket and can rotate around its own axis; A threaded hole is provided on the bottom plate of the material receiving box, the threaded hole is threadedly connected to the screw rod, and the screw rod can drive the material receiving box to move in a vertical direction when it rotates.

10. The roller cleaning device according to claim 9, characterized in that: A positioning mechanism is provided on the side plate of the material receiving box, and the positioning mechanism is used to limit the upper limit of the height of the material receiving box moving in the vertical direction. The positioning mechanism includes: A shell body, arranged on the upper edge of the side panels, and two sides of the shell body are detachably connected to the two side panels respectively; Two positioning shafts, each of which is arranged inside the housing, and the positioning shaft extends along the axial direction of the roller, and along the vertical direction, the projection of the axis of the roller falls between the two positioning shafts; Two rollers are respectively sleeved on the positioning shafts and can rotate around the positioning shafts. When the lifting mechanism lifts the roller cleaning device to a preset height for cleaning, the outer circumferential surface of each roller contacts the outer circumferential surface of the roller.

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