A scraper sharpening device

Abstract

This utility model relates to the technical field of tool maintenance equipment and discloses a blade sharpening device for scrapers, including a housing with observation windows on the left and right sides. The housing contains a grinding angle adjustment mechanism and a blade fixing mechanism. A carrying handle is fixedly installed on the top of the housing, and support legs are fixedly installed on the bottom. By adjusting the angle of the fixing bracket, the grinding block is tilted to a suitable grinding angle. The grinding direction is adjusted by controlling the rotation of the rotary table. This allows the device to adjust the grinding angle according to different scrapers, improving its versatility. An electric telescopic rod is used to control the extension and retraction of the blade within the device. A forward and reverse motor rotates the threaded rod; forward rotation moves the support block to the left, and reverse rotation moves the support block to the right, enabling the blade to reciprocate and contact the grinding block for sharpening. This reduces manual labor and improves the device's practicality.

Description

Technical Field

[0001] This utility model relates to the technical field of tool maintenance equipment, specifically a tool sharpening device for scrapers. Background Technology

[0002] As precision industrial tools, doctor blades are widely used in printing, coating processes, cleaning equipment, and food packaging. These doctor blades are typically made of high-carbon steel, stainless steel, or polyurethane, with a thickness between 0.1-0.5 mm, and require a cutting edge straightness error of ≤0.02 mm / m. With the development of precision manufacturing, the working life and cutting accuracy of modern doctor blades directly affect product quality and production efficiency.

[0003] According to the patent application website, a plastic scraper sharpening device (authorization announcement number: CN210125922U) describes a device that "by setting a sharpening assembly on a bracket, a belt continuously rubs the plastic scraper fixed on two U-shaped plates back and forth, thereby gradually smoothing out the uneven parts of the plastic scraper, so that the plastic scraper meets the requirements for use on plastic mesh again. By using a belt to process the plastic scraper instead of manually, it saves time and labor, and the working end of the plastic scraper is relatively flat, improving the performance of the plastic scraper. By setting up this plastic scraper sharpening device, workers no longer need to use a file to rub it, saving time and reducing the labor intensity of workers. In particular, after setting up the tension wheel, the friction surface of the plastic scraper is even flatter, greatly improving the performance of the plastic scraper."

[0004] Regarding the above description, the applicant believes the following issues exist:

[0005] During use, this utility model uses a belt to continuously rub a plastic scraper fixed on two U-shaped plates back and forth, gradually smoothing out the uneven parts of the plastic scraper. However, the belt at a fixed angle cannot function effectively when dealing with various types of scrapers, resulting in low versatility of the device. Therefore, it is necessary to improve the scraper sharpening device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a blade sharpening device for scrapers to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a blade sharpening device for scrapers, comprising a housing, wherein a sharpening angle adjustment mechanism is provided inside the housing.

[0008] The grinding angle adjustment mechanism includes a rotating component and an angle adjustment component. The angle adjustment component is located on top of the rotating component. The rotating component includes a first motor, a worm gear driven by the motor, and a worm wheel meshing with the worm gear. The worm wheel is fixedly mounted on a rotating shaft. The angle adjustment component includes a rotating shaft and a worm wheel fixed thereon. The rotating shaft is rotatably mounted inside the housing via a mounting bracket.

[0009] One end of the rotating shaft is provided with a bevel gear, which meshes with a bevel gear of the angle adjustment assembly. The inner side of the housing is also provided with a motor, whose output end has a worm gear and a worm wheel.

[0010] Preferably, the first motor is fixedly installed inside the housing, a worm gear is fixedly installed at the output end of the first motor, the rotating shaft is rotatably installed inside the housing, and the mounting bracket is fixedly installed inside the housing, with the worm gear driven by the first motor.

[0011] Preferably, observation windows are provided on the left and right sides of the box, a carrying handle is fixedly installed on the top of the box, and a support leg is fixedly installed on the bottom of the box, so that the sharpening process inside the device can be observed through the observation windows.

[0012] Preferably, the second rotating shaft is rotatably mounted inside the mounting frame, the second worm gear is fixedly mounted outside the second rotating shaft, a rotating table is fixedly mounted outside the second rotating shaft, a third rotating shaft is rotatably mounted inside the rotating table, a second bevel gear is fixedly mounted outside the third rotating shaft, a fixed frame is fixedly mounted outside the third rotating shaft, a grinding block is movably mounted at the bottom of the fixed frame, a second motor is fixedly mounted inside the housing, and a second worm gear is fixedly mounted at the output end of the second motor, driving the second worm gear through the second motor.

[0013] Preferably, the first rotating shaft is rotatably mounted inside the second rotating shaft, and the fixing frame is rotatably mounted outside the rotating table, with the angle adjusted by rotating the fixing frame.

[0014] Preferably, it also includes a blade fixing mechanism, which includes an electric telescopic rod fixedly installed inside the housing. A support plate is fixedly installed at the telescopic end of the electric telescopic rod, and an installation block is fixedly installed on the top of the support plate. A forward and reverse motor is fixedly installed on the right side of the installation block, and a threaded rod is fixedly installed at the output end of the forward and reverse motor. A sliding rod is fixedly installed inside the installation block, and a support block is slidably installed outside the sliding rod. A blade clamp is provided on the top of the support block to fix the scraper to be sharpened.

[0015] Preferably, the threaded rod is rotatably mounted inside the mounting block, the support block is threadedly mounted outside the threaded rod, and there are four electric telescopic rods arranged in a rectangular array, with the support block moving by rotating the threaded rod.

[0016] Compared with the prior art, the present invention provides a blade sharpening device for scrapers, which has the following advantages:

[0017] 1. This scraper grinding device uses a first motor to drive a worm gear to rotate, which in turn drives a worm wheel to rotate a rotating shaft, which in turn drives a bevel gear to rotate. This causes a bevel gear to rotate a rotating shaft, which in turn drives a rotating shaft. By adjusting the angle of the fixed frame, the grinding block is tilted to a suitable grinding angle. Then, by controlling a second motor to rotate a second worm gear, the rotating shaft rotates a rotary table, which adjusts the grinding direction. This allows the device to adjust the grinding angle according to different scrapers, thus improving the versatility of the device.

[0018] 2. This scraper grinding device uses an electric telescopic rod to control the extension and retraction of the blade, adjusting the height of the blade within the device. By controlling the forward and reverse rotation motors, the threaded rod rotates. Forward rotation moves the support block to the left, and reverse rotation moves the support block to the right, enabling the blade to reciprocate and contact the grinding block for grinding. This reduces manual labor and improves the practicality of the device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the rotating component structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the angle adjustment component of this utility model;

[0024] Figure 5 This is a schematic diagram of the blade fixing mechanism of this utility model.

[0025] In the diagram: 1. Housing; 2. Observation window; 3. Grinding angle adjustment mechanism; 4. Blade fixing mechanism; 5. Handle; 6. Support leg; 31. Rotating assembly; 32. Angle adjustment assembly; 311. First motor; 312. Worm gear one; 313. Rotating shaft one; 314. Worm wheel one; 315. Bevel gear one; 316. Mounting bracket; 321. Rotating shaft two; 322. Worm wheel two; 323. Rotary table; 324. Rotating shaft three; 325. Bevel gear two; 326. Fixing bracket; 327. Grinding block; 328. Motor two; 329. Worm gear two; 41. Electric telescopic rod; 42. Support plate; 43. Mounting block; 44. Forward and reverse motor; 45. Threaded rod; 46. Slide rod; 47. Support block; 48. Blade clamp. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Please see Figure 1-5 This utility model provides a technical solution: a blade sharpening device for scrapers, including a housing 1, and a sharpening angle adjustment mechanism 3 and a blade fixing mechanism 4 are provided inside the housing 1.

[0029] The grinding angle adjustment mechanism 3 includes a rotating component 31 and an angle adjustment component 32. The angle adjustment component 32 is located on top of the rotating component 31. The rotating component 31 includes a first motor 311, a worm gear 312 driven by the motor, and a worm wheel 314 meshing with the worm gear 312. The worm wheel 314 is fixedly mounted on a rotating shaft 313. The angle adjustment component 32 includes a rotating shaft 321 and a worm wheel 322 fixed thereon. The rotating shaft 321 is rotatably mounted inside the housing 1 via a mounting bracket 316.

[0030] The end of the rotating shaft 313 is provided with a bevel gear 315, which meshes with the bevel gear 325 of the angle adjustment component 32. The inner side of the housing 1 is also provided with a motor 328, whose output end has a worm gear 329 meshing with a worm wheel 322.

[0031] Furthermore, the first motor 311 is fixedly installed inside the housing 1, and a worm gear 312 is fixedly installed at the output end of the first motor 311. The rotating shaft 313 is rotatably installed inside the housing 1, and the mounting bracket 316 is fixedly installed inside the housing 1, driving the worm gear 312 through the first motor 311.

[0032] Furthermore, observation windows 2 are provided on the left and right sides of the box 1, a carrying handle 5 is fixedly installed on the top of the box 1, and a support leg 6 is fixedly installed on the bottom of the box 1. The sharpening process inside the device can be observed through the observation windows 2.

[0033] Furthermore, the second rotating shaft 321 is rotatably installed inside the mounting bracket 316, the second worm gear 322 is fixedly installed outside the second rotating shaft 321, a rotating table 323 is fixedly installed outside the rotating shaft 321, the third rotating shaft 324 is rotatably installed inside the rotating table 323, the second bevel gear 325 is fixedly installed outside the third rotating shaft 324, a fixed bracket 326 is fixedly installed outside the third rotating shaft 324, a grinding block 327 is movably installed at the bottom of the fixed bracket 326, the second motor 328 is fixedly installed inside the housing 1, and the second worm gear 329 is fixedly installed at the output end of the second motor 328, driving the second worm gear 329 through the second motor 328.

[0034] Furthermore, the first rotating shaft 313 is rotatably mounted inside the second rotating shaft 321, and the fixing bracket 326 is rotatably mounted outside the rotating table 323. The angle can be adjusted by rotating the fixing bracket 326.

[0035] Furthermore, it also includes a blade fixing mechanism 4, which includes an electric telescopic rod 41. The electric telescopic rod 41 is fixedly installed inside the housing 1. A support plate 42 is fixedly installed at the telescopic end of the electric telescopic rod 41. An installation block 43 is fixedly installed on the top of the support plate 42. A forward and reverse motor 44 is fixedly installed on the right side of the installation block 43. A threaded rod 45 is fixedly installed at the output end of the forward and reverse motor 44. A slide rod 46 is fixedly installed inside the installation block 43. A support block 47 is slidably installed outside the slide rod 46. A blade clamp 48 is provided on the top of the support block 47, and the blade clamp 48 is used to fix the scraper to be ground.

[0036] Furthermore, the threaded rod 45 is rotatably mounted inside the mounting block 43, and the support block 47 is threadedly mounted on the outside of the threaded rod 45. There are four electric telescopic rods 41, which are distributed in a rectangular array. The support block 47 moves by rotating the threaded rod 45.

[0037] In actual operation, when this device is in use, the carrying handle 5 facilitates placing the device in a suitable position. The door is opened, and the blade to be sharpened is installed onto the blade holder 48. The first motor 311 drives the worm gear 312 to rotate, causing the worm wheel 314 to drive the rotating shaft 313 to rotate. The rotating shaft 313 drives the bevel gear 315 to rotate, causing the bevel gear 325 to drive the rotating shaft 324 to rotate. The rotation of the rotating shaft 324 adjusts the angle of the fixing bracket 326, causing the grinding block 327 to be biased towards a suitable grinding angle. Then, the second motor 328 is controlled to rotate the worm gear 329. The movement causes the rotating shaft 321 to drive the rotating table 323 to rotate, adjusting the grinding direction. This allows the device to adjust the corresponding grinding angle according to different scrapers, improving the versatility of the device. The height of the blade inside the device is adjusted by the extension and retraction control of the electric telescopic rod 41. The threaded rod 45 is rotated by controlling the forward and reverse rotation motor 44. When it rotates forward, the support block 47 moves to the left, and when it rotates in the reverse direction, the support block 47 moves to the right, realizing the reciprocating motion of the blade, which contacts the grinding block 327 to achieve grinding. This reduces manual labor and improves the practicality of the device. The door is closed, and grinding is carried out. The observation can be made through the observation window 2.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A sharpening device for a doctor blade comprising a housing (1), characterized in that: The interior of the housing (1) is equipped with a grinding angle adjustment mechanism (3); The grinding angle adjustment mechanism (3) includes a rotating assembly (31) and an angle adjustment assembly (32). The angle adjustment assembly (32) is located on top of the rotating assembly (31). The rotating assembly (31) includes a first motor (311), a worm gear (312) driven by the motor, and a worm wheel (314) meshing with the worm gear (312). The worm wheel (314) is fixedly mounted on a rotating shaft (313). The angle adjustment assembly (32) includes a rotating shaft (321) and a worm wheel (322) fixed thereon. The rotating shaft (321) is rotatably mounted inside the housing (1) via a mounting bracket (316). The end of the rotating shaft (313) is provided with a bevel gear (315), which meshes with the bevel gear (325) of the angle adjustment component (32). The inner side of the housing (1) is also provided with a motor (328), whose output end has a worm gear (329) meshing with a worm wheel (322).

2. A blade sharpening device as claimed in claim 1, wherein: The first motor (311) is fixedly installed inside the housing (1), and a worm gear (312) is fixedly installed at the output end of the first motor (311). The rotating shaft (313) is rotatably installed inside the housing (1), and the mounting bracket (316) is fixedly installed inside the housing (1).

3. The blade sharpening device for scrapers according to claim 1, characterized in that: The box (1) has observation windows (2) on the left and right sides, a carrying handle (5) is fixedly installed on the top of the box (1), and a support leg (6) is fixedly installed on the bottom of the box (1).

4. The blade sharpening device for scrapers according to claim 1, characterized in that: The second rotating shaft (321) is rotatably installed inside the mounting bracket (316), the second worm gear (322) is fixedly installed outside the second rotating shaft (321), a rotating table (323) is fixedly installed outside the second rotating shaft (321), the third rotating shaft (324) is rotatably installed inside the rotating table (323), the second bevel gear (325) is fixedly installed outside the third rotating shaft (324), a fixed frame (326) is fixedly installed outside the third rotating shaft (324), a grinding block (327) is movably installed at the bottom of the fixed frame (326), the second motor (328) is fixedly installed inside the housing (1), and the second worm gear (329) is fixedly installed at the output end of the second motor (328).

5. A blade sharpening device for scrapers according to claim 4, characterized in that: The first rotating shaft (313) is rotatably installed inside the second rotating shaft (321), and the fixed frame (326) is rotatably installed outside the rotating table (323).

6. The blade sharpening device for scrapers according to claim 1, characterized in that: It also includes a blade fixing mechanism (4), which includes an electric telescopic rod (41). The electric telescopic rod (41) is fixedly installed on the inner side of the housing (1). A support plate (42) is fixedly installed at the telescopic end of the electric telescopic rod (41). An installation block (43) is fixedly installed on the top of the support plate (42). A forward and reverse motor (44) is fixedly installed on the right side of the installation block (43). A threaded rod (45) is fixedly installed at the output end of the forward and reverse motor (44). A slide rod (46) is fixedly installed inside the installation block (43). A support block (47) is slidably installed outside the slide rod (46). A blade clamp (48) is provided on the top of the support block (47).

7. A blade sharpening device for scrapers according to claim 6, characterized in that: The threaded rod (45) is rotatably mounted inside the mounting block (43), and the support block (47) is threadedly mounted outside the threaded rod (45). There are four electric telescopic rods (41) arranged in a rectangular array.

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