Scraping device

Abstract

The utility model discloses a scraping device which is used for scraping attachments on a steel belt of a tobacco cutter, at least one end of the steel belt is wound on a winding roller, the winding roller can rotate to release or recycle the steel belt, and the scraping device is characterized by comprising a mounting frame, a scraping plate, a driving device and a driving device, the scraping plate extends in the axial direction of the winding roller, the scraping plate is rotatably arranged on the mounting frame, the rotating axis of the scraping plate is parallel to the axial direction of the winding roller, a working edge is arranged on the scraping plate, and the working edge can make contact with the surface of the steel belt on the winding roller so as to scrape away attachments on the steel belt; and the retaining mechanism is connected with the scraper blade and used for applying acting force towards the winding roller to the scraper blade, so that the working edge of the scraper blade is always in contact with the steel belt. According to the utility model, attachments on the steel belt can be scraped, so that the normal operation of the steel belt and a knife sharpening system is ensured.

Description

Technical Field

[0001] The utility model relates to the field of scraping devices, in particular to a scraping device. Background Art

[0002] The shredder includes a shredder mechanism and a sharpening mechanism. The shredder mechanism includes a knife roller and a plurality of blades arranged on the knife roller. The blades are used to shred the tobacco leaves, while the sharpening mechanism is used to grind the blades reciprocatingly to ensure the sharpness of the blades, thereby ensuring that high-quality shredded tobacco leaves are cut. The sharpening mechanism is arranged on a steel belt and driven by a motor. The two ends of the steel belt are respectively wound on two winding rollers. When the motor drives the sharpening mechanism to move back and forth, the steel belt is tightened and released on the two winding rollers.

[0003] However, in actual use, some of the tiny blade fibers and smoke brought by the blade will adhere to the dust-proof steel belt. When the steel belt is tightened and released, these attachments will cause the steel belt to deform, resulting in the normal operation of the sharpening system. Utility Model Content

[0004] The utility model aims to solve the problem that the attachments on the steel belt cause the steel belt to deform and the sharpening system cannot operate normally. The utility model provides a scraping device that can scrape the attachments on the steel belt, thereby ensuring the normal operation of the steel belt and the sharpening system.

[0005] In order to solve the above technical problems, the embodiment of the utility model discloses a scraping device for scraping off the attachments on the steel strip of the wire cutting machine, at least one end of the steel strip is wound on a winding roller, and the winding roller can rotate to release or recycle the steel strip, characterized in that the scraping device includes:

[0006] Mounting frame;

[0007] A scraper extends along the axial direction of the winding roller, and the scraper is rotatably arranged on the mounting frame, and the rotation axis of the scraper is parallel to the axial direction of the winding roller. The scraper is provided with a working edge, and the working edge can contact the surface of the steel strip on the winding roller to scrape off the attachments on the steel strip;

[0008] The holding mechanism is connected to the scraper and is used to apply a force to the scraper toward the winding roller so that the working edge of the scraper is always in contact with the steel belt.

[0009] By adopting the above technical solution, the scraper is in contact with the surface of the steel belt and can scrape off the attachments, thereby ensuring the normal operation of the steel belt and the sharpening mechanism; at the same time, since the steel belt will be recovered and released on the winding roller, this will cause the thickness of the steel belt on the winding roller to change. The present application provides a force to the scraper by setting a retaining mechanism so that the working edge of the scraper is always in contact with the surface of the steel belt. Therefore, the present application can also prevent the scraper from not contacting the surface of the steel belt due to changes in the thickness of the steel belt, thereby preventing the attachments from being scraped off in place.

[0010] Optionally, at least one end of the scraper is provided with a connecting shaft, the connecting shaft extends along the axial direction of the winding roller, and the connecting shaft is hinged to the mounting frame.

[0011] Optionally, the winding roller is rotatably arranged on the frame, and the holding mechanism includes a pull rod and a tension spring, the first end of the pull rod is connected to the connecting shaft, the second end of the pull rod is connected to the first end of the tension spring, and the second end of the tension spring is connected to the frame, and the tension spring is used to provide tension to the pull rod to drive the scraper to rotate in a direction close to the winding roller.

[0012] Optionally, a limit rod is further included, which is arranged on the mounting frame. When the thickness of the steel belt on the winding roller is at a minimum value, the end of the limit rod can contact the pull rod to limit the pull rod from continuing to rotate in the direction close to the winding roller.

[0013] Optionally, the mounting frame includes two brackets, the extension directions of the two brackets are parallel and perpendicular to the axial direction of the winding roller, one end of each bracket is connected to the frame, and the other end of each bracket is provided with a mounting hole, the scraper is arranged between the two brackets, and connecting shafts are provided at both ends of the scraper, and the two connecting shafts are respectively inserted into the two mounting holes.

[0014] Optionally, two bearings are further included, which are respectively arranged in the two mounting holes, and the connecting shaft and the mounting frame are rotatably connected through the bearings.

[0015] Optionally, the scraper includes: a metal plate and a non-metal plate connected to each other, the working edge is located on the non-metal plate, and the connecting shaft is connected to the metal plate.

[0016] Optionally, the non-metal plate is a polytetrafluoroethylene plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure of the scraping device in the embodiment of the utility model is shown as follows Figure 1 ;

[0018] Figure 2 The structure of the scraping device in the embodiment of the utility model is shown as follows Figure 2 .

[0019] Figure numerals: 1. mounting frame, 2. scraper, 3. working edge, 4. holding mechanism, 5. connecting shaft, 6. pull rod, 7. tension spring, 8. limit rod, 9. bracket, 10. frame, 11. metal plate, 12. non-metal plate, 13. steel belt, 14. winding roller. DETAILED DESCRIPTION

[0020] 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.

[0021] 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.

[0022] 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.

[0023] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0024] 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.

[0025] 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.

[0026] like Figure 1 and Figure 2 As shown, an embodiment of the utility model discloses a scraping device for scraping off attachments on a steel strip 13 of a wire cutter. At least one end of the steel strip 13 is wound on a winding roller 14. The winding roller 14 is rotatably provided on a frame 10 of the wire cutter to release or recycle the steel strip 13. Specifically, the two ends of the steel strip 13 are respectively wound on two winding rollers 14 (only one winding roller 14 is shown in the figure). When one end of the steel strip 13 is tightened on one of the winding rollers 13, the other end of the steel strip 13 is released on the other winding roller 14. The scraping device includes: a mounting frame 1, a scraper 2 and a retaining mechanism 4. Among them, the mounting frame 1 is connected to the frame 10. The scraper 2 is arranged along the axial direction of the winding roller 14 (such as Figure 2 The scraper 2 is rotatably arranged on the mounting frame 1, and the rotation axis of the scraper 2 (as shown in the X direction) Figure 2 The scraper 2 is parallel to the axial direction of the winding roller 14 (shown by the dotted line L in the middle). The scraper 2 is provided with a working edge 3, which can contact the surface of the steel belt 13 on the winding roller 14 to scrape off the attachments on the steel belt 13. The holding mechanism 4 is connected to the scraper 2, and the holding mechanism 4 is used to apply a force to the scraper 2 toward the winding roller 14 so that the working edge 3 of the scraper 2 is always in contact with the steel belt 13.

[0027] By adopting the above technical solution, the scraper 2 is in contact with the surface of the steel belt 13 to scrape off the attachments on the steel belt 13, which can ensure the normal operation of the steel belt 13 and the sharpening mechanism. In addition, the applicant has found through research that when the steel belt 13 is recovered and released on the winding roller 14, the thickness of the steel belt 13 on the winding roller 14 will change. If the scraper 2 cannot be adjusted according to the actual thickness of the steel belt 13 on the winding roller 14, it may cause the scraper 2 to not contact the surface of the steel belt 13, resulting in the problem that the attachments cannot be scraped off. Therefore, the retaining mechanism 4 set in the present application can provide a force to the scraper 2 so that the working edge 3 of the scraper 2 is always in contact with the surface of the steel belt 13, to prevent the scraper 2 from not contacting the surface of the steel belt 13 due to the reduction in the thickness of the steel belt 13, and then the attachments cannot be scraped off.

[0028] Alternatively, if Figure 2 As shown, at least one end of the scraper 2 is provided with a connecting shaft 5 , which extends along the axial direction of the winding roller 14 , and is hinged to the mounting frame 1 so that the scraper 2 can rotate around the connecting shaft 5 .

[0029] Alternatively, if Figure 2As shown, the holding mechanism 4 includes a pull rod 6 and a tension spring 7, the first end of the pull rod 6 is connected to the connecting shaft 5, the second end of the pull rod 6 is connected to the first end of the tension spring 7, and the second end of the tension spring 7 is connected to the frame 10, and the tension spring 7 is used to provide tension to the pull rod 6 to drive the scraper 2 to rotate in the direction close to the winding roller 14, so that the working edge 3 of the scraper 2 is always in contact with the surface of the steel belt 13, to prevent the scraper 2 from not contacting the surface of the steel belt 13 due to the reduction in the thickness of the steel belt 13, thereby preventing the attachment from not being scraped off properly.

[0030] Alternatively, if Figure 2 As shown, it also includes a limit rod 8, which is arranged on the mounting frame 1. When the thickness of the steel belt 13 on the winding roller 14 is reduced to the minimum value, for example, when there is only one layer of the steel belt 13 wound on the winding roller 14, the end of the limit rod 8 contacts the pull rod 6 to limit the pull rod 6 from continuing to rotate in the direction close to the winding roller 14, to prevent excessive friction between the scraper 2 and the steel belt 13, and to reduce the service life of the scraper 2. When the thickness of the steel belt 13 on the winding roller 14 gradually increases from the minimum value, the gradually thickening steel belt 13 will apply a force to the scraper 2 to push the scraper 2 to rotate around the rotation axis gradually in the direction away from the winding roller 14 to adapt to the thickness of the steel belt 13 on the winding roller 14.

[0031] Alternatively, if Figure 2 As shown, the mounting frame 1 includes two brackets 9, the extension directions of the two brackets 9 are parallel and perpendicular to the axial direction of the winding roller 14, one end of each bracket 9 is connected to the frame 10, and the other end of each bracket 9 is provided with a mounting hole (not shown in the figure), the scraper 2 is arranged between the two brackets 9, and the two ends of the scraper 2 are provided with a connecting shaft 5, and the two connecting shafts 5 are respectively arranged in the two mounting holes. Specifically, bearings are arranged in the two mounting holes, and the connecting shaft 5 is rotatably connected to the mounting frame 1 through the bearings to reduce the friction between the connecting shaft 5 and the bracket 9, thereby preventing the connecting shaft 5 from being worn.

[0032] Optionally, continue to refer to Figure 2 The scraper 2 includes a metal plate 11 and a non-metal plate 12 connected to each other, wherein the working edge 3 is located on the non-metal plate 11, and the connecting shaft 5 is connected to the metal plate 11 to improve the strength of the connection. Specifically, the metal plate 11 and the non-metal plate 12 are connected by bolts so that the non-metal plate 12 can be replaced when it is severely worn. Preferably, the non-metal plate 12 is a polytetrafluoroethylene plate, which has good wear resistance and has a lower strength than the steel belt 13, so that the steel belt 13 can be prevented from being damaged when it contacts the steel belt 13.

[0033] 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 scraping device for scraping off attachments on a steel strip of a slitting machine, wherein at least one end of the steel strip is wound on a winding roller, and the winding roller can rotate to release or recover the steel strip, characterized in that: The scraping device comprises: Mounting frame; A scraper extends along the axial direction of the winding roller, the scraper is rotatably arranged on the mounting frame, the rotation axis of the scraper is parallel to the axial direction of the winding roller, and the scraper is provided with a working edge, the working edge can contact the surface of the steel strip on the winding roller to scrape off the attachments on the steel strip; A holding mechanism is connected to the scraper, and the holding mechanism is used to apply a force to the scraper toward the winding roller so that the working edge of the scraper is always in contact with the steel belt.

2. The scraping device according to claim 1, characterized in that: At least one end of the scraper is provided with a connecting shaft, the connecting shaft extends along the axial direction of the winding roller, and the connecting shaft is hinged to the mounting frame.

3. The scraping device according to claim 2, characterized in that: The winding roller is rotatably arranged on the frame, and the holding mechanism includes a pull rod and a tension spring. The first end of the pull rod is connected to the connecting shaft, the second end of the pull rod is connected to the first end of the tension spring, and the second end of the tension spring is connected to the frame. The tension spring is used to provide tension to the pull rod to drive the scraper to rotate in a direction close to the winding roller.

4. The scraping device according to claim 3, characterized in that: It also includes a limit rod, which is arranged on the mounting frame. When the thickness of the steel belt on the winding roller is at a minimum value, the end of the limit rod can contact the pull rod to limit the pull rod from continuing to rotate in a direction close to the winding roller.

5. The scraping device according to claim 3, characterized in that: The mounting frame includes two brackets, the extension directions of the two brackets are parallel and perpendicular to the axial direction of the winding roller, one end of each bracket is connected to the frame, and the other end of each bracket is provided with a mounting hole, the scraper is arranged between the two brackets, and the two ends of the scraper are provided with connecting shafts, and the two connecting shafts are respectively inserted into the two mounting holes.

6. The scraping device according to claim 5, characterized in that It also includes two bearings, which are respectively arranged in the two mounting holes, and the connecting shaft is rotatably connected to the mounting frame through the bearings.

7. The scraping device according to claim 2, characterized in that: The scraper comprises: a metal plate and a non-metal plate connected to each other, the working edge is located on the non-metal plate, and the connecting shaft is connected to the metal plate.

8. The scraping device according to claim 7, characterized in that The non-metal plate is a polytetrafluoroethylene plate.

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