Scraping device

Abstract

The utility model discloses a scraping device, which is used for scraping dirt adhered on a driving roller, the driving roller is rotatably arranged on a mounting frame and extends along a first direction, the scraping device comprises a scraping assembly, a scraping plate, a scraping plate, a scraping plate, a scraping plate, a scraping plate, a driving roller and a driving roller, the scraping assembly is arranged on the mounting frame, a working edge is arranged on the scraping assembly, and the working edge extends along the first direction; the adjusting mechanism is arranged between the mounting frame and the scraping assembly and comprises a first spring and a second spring, the first spring applies a first acting force to the scraping assembly, the second spring applies a second acting force to the scraping assembly, the direction of the second acting force is opposite to that of the first acting force, and the second acting force is smaller than the first acting force; and the working edge is always in contact with the circumferential surface of the driving roller under the action of the first acting force and the second acting force. Dirt adhered to the driving roller can be scraped off, so that a belt is prevented from being torn and damaged.

Description

Technical Field

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

[0002] In the production process of tobacco making workshop, belt conveyor is usually used to transport materials. The belt conveyor includes two transmission rollers and belts mounted on the transmission rollers. The friction force generated by the rotation of the two transmission rollers realizes the linear motion of the belt, thereby completing the transmission of tobacco on the belt conveyor.

[0003] At present, it is found that during use, due to reasons such as belt deviation, tobacco foam falls into the belt from the gaps on both sides of the belt, and the tobacco dust adheres to the transmission roller during the operation of the belt. As the belt runs for a long time, more and more tobacco dust accumulates on the transmission roller, and the circumferential surface of the transmission roller is bulged, which eventually causes the belt to tear at the bonding point. Utility Model Content

[0004] The utility model aims to solve the problem that the belt is torn due to dirt such as cigarette dust adhering to the transmission roller. The utility model provides a scraping device which can scrape the dirt adhering to the transmission roller, thereby preventing the belt from being torn and damaged.

[0005] In order to solve the above technical problems, the embodiment of the utility model discloses a scraping device for scraping dirt adhered to a driving roller, wherein the driving roller is rotatably arranged on a mounting frame, and the driving roller extends along a first direction, and the scraping device comprises:

[0006] A scraping assembly is arranged on the mounting frame, and a working edge is arranged on the scraping assembly, and the working edge extends along a first direction;

[0007] The adjusting mechanism is arranged between the mounting frame and the scraping assembly, and includes a first spring and a second spring. The first spring applies a first force to the scraping assembly, and the second spring applies a second force to the scraping assembly. The second force is opposite to the direction of the first force, and the second force is smaller than the first force. The working edge is always in contact with the circumferential surface of the driving roller under the action of the first force and the second force.

[0008] By adopting the above technical solution, on the one hand, the first spring can apply a first force to the scraping assembly close to the transmission roller, so that the working edge of the scraping assembly is always in contact with the circumferential surface of the transmission roller, thereby timely scraping off the dirt adhering to the circumferential surface of the transmission roller to avoid tearing and damage to the belt; on the other hand, the second spring can apply a second force to the scraping assembly away from the transmission roller, and the second force is smaller than the first force, so it can also prevent the working edge from applying too much force on the transmission roller, generating greater friction, thereby avoiding excessive friction between the working edge and the transmission roller and reducing the service life.

[0009] Optionally, the mounting frame includes a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are disposed on both sides of the scraping assembly along a second direction, the second direction is perpendicular to the first direction, the scraping assembly is provided with a through hole, the through hole extends along the second direction, and the adjustment mechanism further includes:

[0010] A guide rod extending along the second direction, the guide rod passing through the through hole is arranged between the first mounting plate and the second mounting plate;

[0011] Among them, the first spring is arranged on the side of the scraping assembly away from the transmission roller, the first spring is sleeved on the guide rod, the first end of the first spring abuts against the scraping assembly, the second end of the first spring abuts against the first mounting plate, and the first spring is used to apply a first force to the scraping assembly so that the working edge abuts against the circumferential surface of the transmission roller.

[0012] Optionally, the second spring is arranged on the side of the scraping assembly close to the transmission roller, the second spring is sleeved on the guide rod, the first end of the second spring abuts against the scraping assembly, the second end of the second spring abuts against the second mounting plate, and the second spring applies a second force to the scraping assembly.

[0013] Optionally, the first spring and the second spring are both compression springs.

[0014] Optionally, the scraping assembly comprises:

[0015] The scraper plate is arranged obliquely relative to the vertical direction, the working edge is arranged on the scraper plate, and the vertical direction is perpendicular to the first direction and the second direction respectively;

[0016] A receiving plate is detachably connected to the scraping plate, the receiving plate is L-shaped, at least one end of the receiving plate extends out of the mounting frame, the receiving plate is used to receive dirt scraped by the scraping plate, and one end of the receiving plate is provided with a drainage hole;

[0017] The fixing plate is arranged at the end of the receiving plate, the extension direction of the fixing plate is perpendicular to the second direction, the first spring and the second spring are arranged on both sides of the fixing plate along the second direction, and the first end of the first spring and the first end of the second spring are respectively abutted against the two fixing surfaces of the fixing plate.

[0018] Optionally, there are two fixing plates, which are respectively connected to the two ends of the receiving plate, and there are two first springs and two second springs, with a first spring and a second spring respectively arranged on both sides of each fixing plate.

[0019] Optionally, the scraping device further comprises an auger, which is arranged above the receiving plate, and the auger can rotate around its own axis, and the auger is used to transport the dirt on the receiving plate along a first direction so that the dirt is discharged from the drain hole.

[0020] Optionally, the scraping device further comprises:

[0021] A first sprocket is arranged at the end of the transmission roller, and the first sprocket rotates synchronously with the transmission roller;

[0022] A second sprocket is disposed at the end of the auger, and the second sprocket is used to drive the auger to rotate around its own axis;

[0023] The chain is sleeved between the first sprocket and the second sprocket. When the first sprocket rotates, the second sprocket rotates to drive the auger to rotate.

[0024] Optionally, the scraper plate and the receiving plate are connected by bolts.

[0025] Optionally, the guide rod is a screw rod, a first end of the screw rod abuts against the second mounting plate, a threaded hole is provided on the first mounting plate, and the screw rod is threadedly connected to the threaded hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram showing the structure of a scraping device in an embodiment of the utility model is shown;

[0027] Figure 2 A schematic diagram showing the structure of the scraping device in another embodiment of the utility model at another viewing angle;

[0028] Figure 3 A schematic structural diagram of a scraping assembly in an embodiment of the utility model is shown.

[0029] Figure numerals: 1. Drive roller, 2. Mounting frame, 3. Scraping assembly, 4. Working edge, 5. Adjustment mechanism, 6. First spring, 7. Second spring, 8. First mounting plate, 9. Second mounting plate, 10. Through hole, 11. Guide rod, 12. Scraping plate, 13. Receiver plate, 14. Fixed plate, 15. Auger, 16. First sprocket, 17. Second sprocket, 18. Chain, 19. Bolt, 20. Drain hole, 21. Rotating shaft, 22. Spiral blade. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] 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.

[0033] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0034] 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.

[0035] 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.

[0036] like Figure 1As shown, the embodiment of the utility model discloses a scraping device for scraping dirt adhered to a driving roller 1, wherein the driving roller 1 is rotatably arranged on a mounting frame 2, and the axis of the driving roller 1 is along a first direction (such as Figure 1 Specifically, the number of the transmission rollers 1 is two (only one is shown in the figure), and the two transmission rollers 1 extend along the second direction (as shown in the figure). Figure 1 The two transmission rollers 1 are arranged at intervals in the Y direction as shown, and the second direction is perpendicular to the first direction. A belt (not shown in the figure) is sleeved on the circumferential surface of the two transmission rollers 1. The two transmission rollers 1 can respectively rotate around their own axes to drive the belt to run along the second direction to transport the tobacco material.

[0037] The scraping device includes a scraping assembly 3 and an adjusting mechanism 5. The scraping assembly 3 is arranged on the mounting frame 2, and a working edge 4 is provided on the scraping assembly 3, and the working edge 4 extends along a first direction. Preferably, the scraping assembly 3 is made of stainless steel to improve its structural strength and wear resistance. The adjusting mechanism 5 is arranged between the mounting frame 2 and the scraping assembly 3, and the adjusting mechanism 5 includes a first spring 6 and a second spring 7. Preferably, the first spring 6 and the second spring 7 are both compression springs. The first spring 6 applies a first force to the scraping assembly 3, and the second spring 7 applies a second force to the scraping assembly 3. Specifically, the direction of the second force is opposite to the direction of the first force, and the second force is smaller than the first force, and the working edge 4 is always in contact with the circumferential surface of the driving roller 1 under the joint action of the first force and the second force.

[0038] By adopting the above technical scheme, on the one hand, the first spring 6 can apply a first force to the scraping assembly 3 close to the driving roller 1, so that the working edge 4 of the scraping assembly 3 is always in contact with the circumferential surface of the driving roller 1, thereby timely scraping off the dirt adhering to the circumferential surface of the driving roller 1 to avoid the belt from being torn and damaged; on the other hand, the second spring 7 can apply a second force to the scraping assembly 3 away from the driving roller 1, and the second force is opposite to the direction of the first force and is smaller than the first force. Therefore, it can also prevent the working edge 4 from applying too much force to the driving roller 1, thereby generating greater friction, thereby avoiding excessive friction between the working edge 4 and the driving roller 1 and reducing the service life.

[0039] Alternatively, if Figure 2 and Figure 3As shown, the mounting frame 2 includes a first mounting plate 8 and a second mounting plate 9. The first mounting plate 8 and the second mounting plate 9 are disposed on both sides of the scraper assembly 3 along the second direction. The scraper assembly 3 is provided with a through hole 10, and the through hole 10 extends along the second direction. The adjustment mechanism 5 also includes a guide rod 11. The guide rod 11 extends along the second direction. The guide rod 11 passes through the through hole 10 and is disposed between the first mounting plate 8 and the second mounting plate 9. The first spring 6 is disposed on the side of the scraper assembly 3 away from the transmission roller 1. The first spring 6 is sleeved on the guide rod 11. The first end of the first spring 6 abuts against the scraper assembly 3, and the second end of the first spring 6 abuts against the first mounting plate 8. The first spring 6 is used to apply a first force to the scraper assembly 3. Specifically, the direction of the first force is Figure 2 The second direction is opposite to that shown. When there is a gap between the working edge 4 and the driving roller 1, the first force can push the scraping assembly 3 to move toward the driving roller 1, so that the working edge 4 abuts against the circumferential surface of the driving roller 1, thereby scraping off the dirt adhering to the circumferential surface of the driving roller 1 in time to avoid tearing and damage to the belt.

[0040] Optionally, continue to refer to Figure 2 The second spring 7 is arranged on the side of the scraping assembly 3 close to the driving roller 1, and the second spring 7 is sleeved on the guide rod 11. The first end of the second spring 7 abuts against the scraping assembly 3, and the second end of the second spring 7 abuts against the second mounting plate 9. The second spring 7 applies a second force to the scraping assembly 3. Specifically, the direction of the second force is Figure 2 The direction pointed by the arrow Y in is the same. Preferably, the elastic coefficient of the first spring 6 is greater than the elastic coefficient of the second spring 7, so that when the compression amount of the first spring 6 is equal to the compression amount of the second spring 7, the first force is greater than the second force, so as to ensure that the working edge 4 can contact the circumferential surface of the driving roller 1. Exemplarily, the elastic coefficient of the first spring 6 is 240N / mm, and the elastic coefficient of the second spring 7 is 130N / mm.

[0041] By adopting the above technical solution, compared with setting only one first spring 6, setting the second spring 7 can apply a second force to the working edge 4, and the second force is opposite to the direction of the first force, and the second force is smaller than the first force. Therefore, the second force can prevent the working edge 4 from applying too much force to the transmission roller 1, generating greater friction, thereby avoiding excessive friction between the working edge 4 and the transmission roller 1 and reducing the service life.

[0042] Alternatively, if Figure 2 and Figure 3 As shown, the scraping assembly 3 includes: a scraping plate 12, a receiving plate 13 and a fixing plate 14. The scraping plate 12 is relative to the vertical direction (such as Figure 3The scraper plate 12 is tilted in the Z direction, and the vertical direction is perpendicular to the first direction and the second direction, that is, there is an angle (as shown in FIG. Figure 3 The angle α is shown in the figure), and the angle ranges from 50° to 70° to improve the scraping effect. The edge of the scraping plate 12 close to the driving roller 1 is the working edge 4. The receiving plate 13 is detachably connected to the scraping plate 12, and the cross-section of the receiving plate 13 is L-shaped. The length of the receiving plate 13 along the first direction is greater than the length of the driving roller 1 to ensure that both ends of the receiving plate 13 extend to the outside of the mounting frame 2. The receiving plate 13 is used to receive the dirt scraped by the scraping plate 12, and a drainage hole 20 is provided at one end of the receiving plate 13. The fixing plate 14 is provided at the end of the receiving plate 13, and the fixing plate 14 extends in the vertical direction. The through hole 10 is provided on the fixing plate 14, and the first spring 6 and the second spring 7 are respectively arranged on both sides of the fixing plate 14 along the second direction, and the first end of the first spring 6 and the first end of the second spring 7 are respectively abutted against the two fixed surfaces of the fixing plate 14. Specifically, there are two guide rods 11 and two fixed plates 14 in number and their positions correspond one to one. The two guide rods are arranged on the mounting frame 2 at intervals along the first direction. The two fixed plates 14 are respectively connected to the two end portions of the receiving plate 13. The two guide rods 11 pass through the through holes 10 on the two fixed plates 14 respectively. There are two first springs 6 and two second springs 7 in number. A first spring 6 and a second spring 7 are respectively arranged on both sides of each fixed plate 14 so that the forces at both ends of the scraping assembly 3 are balanced, thereby ensuring that both ends of the working edge 4 can contact the transmission roller 1 to improve the scraping effect.

[0043] Alternatively, if Figure 2 As shown, the scraping device also includes an auger 15, which is arranged above the receiving plate 13. The auger 15 includes a rotating shaft 21 and a spiral blade 22 arranged on the rotating shaft 21. The rotating shaft 21 can rotate around its own axis to drive the spiral blade 22 to rotate, thereby conveying the dirt on the receiving plate 13 along a first direction, so that the dirt is discharged from the drainage hole 20 to prevent secondary pollution to the driving roller 1. Preferably, a collection box (not shown in the figure) is provided downstream of the drainage hole 20 to collect and process the dirt.

[0044] Alternatively, if Figure 1 As shown, the scraping device also includes: a first sprocket 16, a second sprocket 17 and a chain 18. The first sprocket 16 is arranged at the end of the transmission roller 1, and the transmission roller 1 is driven to rotate by the motor, thereby driving the first sprocket 16 to rotate synchronously. The second sprocket 17 is arranged at the end of the auger 15, and the second sprocket 17 is used to drive the auger 15 to rotate around its own axis. The chain 18 is sleeved between the first sprocket 16 and the second sprocket 17. When the first sprocket 16 rotates, the second sprocket 17 rotates to drive the auger 15 to rotate.

[0045] Alternatively, if Figure 3As shown, the scraper plate 12 is connected to the receiving plate 13 by bolts 19. Specifically, the number of the bolts 19 is five, and the five bolts 19 are evenly arranged on the scraper plate 12. The bolt connection method is convenient for disassembly and replacement of the scraper plate 12.

[0046] Optionally, bearings (not shown) are provided at both ends of the transmission roller 1, and two bearing seats are provided on the mounting frame 2 accordingly. The transmission roller 1 is rotatably connected to the mounting frame 2 through the bearings and the bearing seats. The second mounting plate 9 is formed by one of the bearing seats. The two bearing seats can move relative to the mounting frame 2 in the second direction or in a direction opposite to the second direction. Figure 2 As shown, the two guide rods 11 are both screw rods, the first ends of the screw rods are in contact with the second mounting plate 9, the first mounting plate 8 is provided with a threaded hole (not shown in the figure), and the middle part of the screw rod is threadedly connected to the threaded hole.

[0047] When the belt is too loose, the two screws can be rotated at the same time so that the first end of the screw applies a force to the second mounting plate 9, thereby moving the second mounting plate 9 relative to the mounting frame 2 in a direction opposite to the second direction, thereby increasing the distance between the two transmission rollers 1, thereby tightening the belt and preventing the belt from slipping due to being too loose.

[0048] The scraping device provided by the utility model can not only scrape off the dirt adhered to the driving roller 1, thereby preventing the belt from being torn and damaged, but also prevent the working edge 4 from excessively contacting the circumferential surface of the driving roller 1, thereby avoiding excessive friction between the working edge 4 and the driving roller 1 and reducing the service life.

[0049] 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 dirt adhered to a transmission roller, wherein the transmission roller is rotatably arranged on a mounting frame, and the transmission roller extends along a first direction, characterized in that: The scraping device comprises: A scraping assembly is arranged on the mounting frame, and a working edge is arranged on the scraping assembly, and the working edge extends along the first direction; An adjusting mechanism is arranged between the mounting frame and the scraping assembly, and the adjusting mechanism includes a first spring and a second spring. The first spring applies a first force to the scraping assembly, and the second spring applies a second force to the scraping assembly. The second force is opposite to the direction of the first force, and the second force is smaller than the first force. Under the action of the first force and the second force, the working edge is always in contact with the circumferential surface of the driving roller.

2. The scraping device according to claim 1, characterized in that: The mounting frame includes a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are respectively disposed on both sides of the scraping assembly along a second direction, the second direction is perpendicular to the first direction, the scraping assembly is provided with a through hole, the through hole extends along the second direction, and the adjustment mechanism further includes: A guide rod extending along the second direction, the guide rod passing through the through hole and being arranged between the first mounting plate and the second mounting plate; Wherein, the first spring is arranged on a side of the scraping assembly away from the driving roller, the first spring is sleeved on the guide rod, the first end of the first spring abuts against the scraping assembly, the second end of the first spring abuts against the first mounting plate, and the first spring is used to apply a first force to the scraping assembly so that the working edge abuts against the circumferential surface of the driving roller.

3. The scraping device according to claim 2, characterized in that: The second spring is arranged on a side of the scraping assembly close to the driving roller, the second spring is sleeved on the guide rod, the first end of the second spring abuts against the scraping assembly, the second end of the second spring abuts against the second mounting plate, and the second spring applies a second force to the scraping assembly.

4. The scraping device according to claim 3, characterized in that: The first spring and the second spring are both compression springs.

5. The scraping device according to claim 3, characterized in that: The scraping assembly comprises: A scraper plate is arranged obliquely relative to a vertical direction, the working edge is arranged on the scraper plate, and the vertical direction is perpendicular to the first direction and the second direction respectively; A receiving plate is detachably connected to the scraping plate, the receiving plate is L-shaped, at least one end of the receiving plate extends out of the mounting frame, the receiving plate is used to receive dirt scraped by the scraping plate, and one end of the receiving plate is provided with a drainage hole; A fixing plate is arranged at the end of the receiving plate, the extension direction of the fixing plate is perpendicular to the second direction, the first spring and the second spring are arranged on both sides of the fixing plate along the second direction, and the first end of the first spring and the first end of the second spring are respectively abutted against the two fixing surfaces of the fixing plate.

6. The scraping device according to claim 5, characterized in that The number of the guide rods and the number of the fixed plates are both two, and the two guide rods are arranged on the mounting frame at intervals along the first direction. The two fixed plates are respectively connected to the two ends of the receiving plate, and one fixed plate is arranged on each guide rod. The number of the first springs and the second springs are both two, and one first spring and one second spring are arranged on both sides of each fixed plate.

7. The scraping device according to claim 5, characterized in that: The scraping device also includes an auger, which is arranged above the receiving plate. The auger can rotate around its own axis and is used to transport the dirt on the receiving plate along the first direction so that the dirt is discharged from the drainage hole.

8. The scraping device according to claim 7, characterized in that The scraping device also includes: A first sprocket is disposed at an end of the transmission roller, and the first sprocket rotates synchronously with the transmission roller; A second sprocket, disposed at the end of the auger, the second sprocket is used to drive the auger to rotate around its own axis; The chain is sleeved between the first sprocket and the second sprocket. When the first sprocket rotates, the second sprocket rotates to drive the auger to rotate.

9. The scraping device according to claim 5, characterized in that: The scraping plate is connected to the receiving plate by bolts.

10. The scraping device according to claim 2, characterized in that: The guide rod is a screw rod, a first end of the screw rod abuts against the second mounting plate, a threaded hole is provided on the first mounting plate, and the screw rod is threadedly connected to the threaded hole.

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