Crushing cutter grinding machining positioning equipment for cutter grinding machine tool
The powder knife sharpening device addresses the issue of irregular cutting edges by allowing precise angle and position adjustments, ensuring optimal contact between the grinder and the knife, thus improving the uniformity and efficiency of the powdering process.
Patent Information
- Application Number
- CN202510451030.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2025-07-15
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When grinding the crushing knife, the existing sharpening machine tools cannot effectively adjust the angle and position of the crushing knife, resulting in irregular blade shape and affecting the crushing effect.
The position adjustment, rotation and movement mechanism on the positioning seat are adopted, combined with the grinding and fixing mechanism, to achieve accurate adjustment of the angle, position and rotation of the crushing knife to ensure optimal contact between the blade and the abrasive tool.
The grinding accuracy and crushing efficiency are improved, ensuring that all parts of the blade are evenly polished, adapting to the requirements of different blade geometric shapes, and improving crushing quality.
Smart Images
Figure CN120307105A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of knife grinding machine tools, and particularly relates to a positioning device for grinding and machining a crushing knife for a knife grinding machine tool. Background Art
[0002] A knife grinding machine tool is a machine tool device used to grind the structure of a tool; a crushing knife is a blade structure used in a crusher, which is a blade used in plastic industry machinery, and the blade is widely used in industries such as injection molding, plastic particles, and waste plastic recycling and processing; grinding and machining belongs to grinding processing, which is a mechanical processing method for removing materials. Grinding and machining the blade structure of a crusher also adopts an abrasive method to grind off the excess material on the tool workpiece. This processing method is also one of the widely used material removal methods.
[0003] However, in the existing process of machining a crushing knife, only the position of the crushing knife is simply limited and fixed, and the angular position of the crushing knife is not adjusted according to the situation where the crushing knife needs to be ground. If the angle cannot be adjusted, when grinding the crushing knife, the contact angle between the grinding tool and the blade edge may not reach the ideal state, so that the shape of the ground blade edge is irregular, which will affect the crushing effect during the crushing process and cause uneven crushing of the material. Summary of the Invention
[0004] An embodiment of the present invention provides a positioning device for grinding and machining a crushing knife for a knife grinding machine tool to solve the problems in the prior art.
[0005] The embodiment of the present invention adopts the following technical solution: A positioning device for grinding and machining a crushing knife for a knife grinding machine tool includes a positioning seat. A position adjustment mechanism for driving the crushing knife to incline is provided on the positioning seat. The position adjustment mechanism is slidably matched with the positioning seat. A position rotation mechanism for driving the crushing knife to rotate is provided on the position adjustment mechanism. The position rotation mechanism is rotatably connected to the position adjustment mechanism. A position movement mechanism for driving the crushing knife to move is provided on the position rotation mechanism. The position movement mechanism is slidably matched with the position rotation mechanism. A grinding and fixing mechanism for fixing the crushing knife is provided on the position movement mechanism.
[0006] Further, two symmetrically arranged vertical plates are provided on the positioning seat. Each vertical plate is provided with an inclined groove. Two symmetrically arranged slide rails are provided on the positioning seat.
[0007] Further, the position adjustment mechanism includes an adjustment electric cylinder, an adjustment plate, a rotating plate and a vertical plate. The adjustment electric cylinder is horizontally arranged on the positioning seat. The adjustment plate is horizontally slidably connected between two slide rails. The telescopic end of the adjustment electric cylinder is connected to the adjustment plate. The vertical plate is located at the end of the adjustment plate. A horizontally arranged horizontal shaft is provided on the vertical plate. The horizontal shaft is rotatably connected to the vertical plate. Both ends of the horizontal shaft are slidably matched with two inclined grooves respectively. The bottom of the rotating plate is fixedly connected to the horizontal shaft. The bottom of the rotating plate is rotatably connected to the vertical plate.
[0008] Further, the position rotation mechanism includes a rotation motor and a rotating plate. The rotation motor is located at the bottom of the rotating plate. The rotating plate is horizontally arranged on the top of the rotating plate and is connected to the main shaft of the rotation motor.
[0009] Further, the position movement mechanism includes a moving plate, a moving block, a moving motor, a moving gear and a moving rack. The moving block is located at the bottom of the moving plate. The moving plate is slidably connected to the top of the rotating plate through the moving block. The moving motor is located inside the rotating plate. The moving gear is connected to the main shaft of the moving motor. The moving rack is located at the bottom of the moving plate. The moving rack is meshed with the moving gear.
[0010] Further, the grinding and fixing mechanism includes two groups of fixing components. The two groups of fixing components are symmetrically arranged on the top of the moving plate. Each group of fixing components includes a fixing motor, a rotating shaft and three fixing parts. The three fixing parts are equidistantly arranged on the top of the moving plate. The fixing motor is located on the top of the moving plate. The rotating shaft is in transmission connection with the main shaft of the fixing motor.
[0011] Further, each fixing part includes a fixing seat. A chute is provided inside the fixing seat. A convex block is provided on the top of the fixing seat. Three threaded sections are provided on the rotating shaft. A fixing plate that is slidably matched is provided on the fixing seat. The fixing plate is in threaded connection with the threaded section. A bearing plate that is inserted and matched with the fixing seat is provided on the fixing plate.
[0012] Further, fluororubber plates are provided on the convex block and the fixing plate.
[0013] The above at least one technical solution adopted in the embodiment of the present invention can achieve the following beneficial effects:
[0014] First, when adjusting the angular position of the crushing knife in the present invention, the adjusting electric cylinder operates to drive the adjusting plate to slide between the two slide rails. The sliding of the adjusting plate will drive the movement of the vertical plate, so that the two ends of the horizontal shaft on the vertical plate move in the two inclined slots on the two vertical plates respectively, thereby driving the position of the rotating plate to change in angle and tilt. When changing the angle and tilt of the position of the crushing knife, it can ensure that each part of the blade can contact the grinding tool at the best angle. Taking the spiral blade as an example, through an appropriate inclination angle, the grinding tool can grind the blade along the tangent direction of the spiral line, just like grinding along the edge of the steps of a spiral staircase, so as to accurately restore the shape of the blade and improve the grinding accuracy.
[0015] Second, when repairing the crushing knife in the present invention, the rotating motor operates to drive the rotating plate to rotate, which can drive the position of the crushing knife to rotate and revolve; ensuring uniform grinding of each part of the blade: the shape of the blade of the crushing knife may be complex and diverse, such as serrated, spiral, etc.; by rotating and revolving the position of the crushing knife, each part of the blade can fully contact the grinding tool; for example, for a serrated blade, rotating the crushing knife can allow different sides of each serration to be ground, avoiding the situation that some serrations are over-ground while others are under-ground. For a spiral blade, rotating the crushing knife can enable the grinding tool to grind the blade completely along the spiral direction, thereby ensuring the overall sharpness and shape accuracy of the blade and meeting the requirements of different blade geometries. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:
[0017] Figure 1 is the first three-dimensional structure schematic diagram of the present invention;
[0018] Figure 2 is the second three-dimensional structure schematic diagram of the present invention;
[0019] Figure 3 is the three-dimensional structure schematic diagram of the position adjustment mechanism in the present invention;
[0020] Figure 4 is the three-dimensional structure schematic diagram of the position rotation mechanism and the position movement mechanism in the present invention;
[0021] Figure 5 is the three-dimensional structure schematic diagram of the grinding and fixing machine in the present invention;
[0022] Figure 6 is the three-dimensional structure schematic diagram of the fixing part in the present invention;
[0023] Reference numerals:
[0024] Positioning seat 1, vertical plate 11, inclined groove 12, slide rail 13, position adjustment mechanism 2, adjustment electric cylinder 21, adjustment plate 22, rotating plate 23, vertical plate 24, horizontal shaft 25, position rotation mechanism 3, rotation motor 31, rotating plate 32, position movement mechanism 4, moving plate 41, moving block 42, moving motor 43, moving gear 44, moving rack 45, grinding and fixing mechanism 5, fixing motor 51, rotating shaft 52, fixing member 53, fixing seat 54, chute 55, convex block 56, fixing plate 57, bearing plate 58. Detailed implementation manners
[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the scope of protection of the present invention.
[0026] The following will, with reference to the drawings, elaborate on the technical solutions provided by various embodiments of the present invention for a positioning device for grinding and machining a crushing knife used in a knife sharpening machine tool.
[0027] Referring to Figures 1 to 6 As shown, an embodiment of the present invention provides a positioning device for grinding and machining a crushing knife used in a knife sharpening machine tool, including a positioning seat 1. A position adjustment mechanism 2 for driving the crushing knife to incline is provided on the positioning seat 1. The position adjustment mechanism 2 is slidably engaged with the positioning seat 1. A position rotation mechanism 3 for driving the crushing knife to rotate is provided on the position adjustment mechanism 2. The position rotation mechanism 3 is rotatably connected to the position adjustment mechanism 2. A position movement mechanism 4 for driving the crushing knife to move is provided on the position rotation mechanism 3. The position movement mechanism 4 is slidably engaged with the position rotation mechanism 3. A grinding and fixing mechanism 5 for fixing the crushing knife is provided on the position movement mechanism 4.
[0028] Specifically, two symmetrically arranged vertical plates 11 are provided on the positioning base 1, and each vertical plate 11 is provided with an inclined groove 12. Two symmetrically arranged slide rails 13 are provided on the positioning base 1; the position adjustment mechanism 2 includes an adjustment electric cylinder 21, an adjustment plate 22, a rotating plate 23 and a vertical plate 24. The adjustment electric cylinder 21 is horizontally arranged on the positioning base 1. The adjustment plate 22 is horizontally slidably connected between the two slide rails 13. The telescopic end of the adjustment electric cylinder 21 is connected to the adjustment plate 22. The vertical plate 24 is located at the end of the adjustment plate 22. A horizontally arranged horizontal shaft 25 is provided on the vertical plate 24. The horizontal shaft 25 is rotatably connected to the vertical plate 24. The two ends of the horizontal shaft 25 are respectively in sliding fit with the two inclined grooves 12. The bottom of the rotating plate 23 is fixedly connected to the horizontal shaft 25. The bottom of the rotating plate 23 is rotatably connected to the vertical plate 24.
[0029] When adjusting the angular position of the crushing knife, the adjustment electric cylinder 21 works to drive the adjustment plate 22 to slide between the two slide rails 13. The sliding of the adjustment plate 22 will drive the position of the vertical plate 24 to move. Thus, the two ends of the horizontal shaft 25 on the vertical plate 24 move in the two inclined grooves 12 on the two vertical plates 11 respectively, thereby driving the position of the rotating plate 23 to change in angle and tilt. When changing the angle and tilt of the position of the crushing knife, it can ensure that each part of the blade can contact the grinding tool at the best angle. Taking the spiral blade as an example, through an appropriate tilt angle, the grinding tool can grind the blade along the tangent direction of the spiral line, just like grinding along the edge of the steps of a spiral staircase, so as to accurately restore the shape of the blade and improve the grinding accuracy.
[0030] The change and tilt of the angle can enable each part of the blade to be evenly ground. If the crushing knife is at a fixed angle, it may cause some parts of the blade to contact the grinding tool too much while other parts are insufficiently contacted. By flexibly adjusting the angle, every part of the blade can be ground under suitable conditions, thereby improving the grinding quality, enabling the crushed knife after grinding to cut materials more effectively during the crushing process, and improving the crushing efficiency.
[0031] By changing the angle and tilt of the crushing knife, the contact angle between the blade and the grinding tool can reach the most favorable state for grinding.
[0032] Specifically, the position rotation mechanism 3 includes a rotation motor 31 and a rotation plate 32. The rotation motor 31 is located at the bottom of the rotating plate 23. The rotation plate 32 is horizontally arranged on the top of the rotating plate 23 and is connected to the main shaft of the rotation motor 31.
[0033] When repairing the crushing knife, the rotation motor 31 works to drive the rotation plate 32 to rotate, which can drive the position of the crushing knife to rotate and revolve.
[0034] Ensure uniform grinding of all parts of the blade: The blade shape of the crushing knife can be complex and diverse, such as serrated, spiral, etc.; by rotating and revolving the position of the crushing knife, all parts of the blade can fully contact the grinding tool; for example, for a serrated blade, rotating the crushing knife can allow different sides of each serration to be ground, avoiding the situation where some serrations are over-ground while others are under-ground. For a spiral blade, revolving the crushing knife enables the grinding tool to grind the blade along the spiral direction, thus ensuring the overall sharpness and shape accuracy of the blade.
[0035] Adapt to the requirements of different blade geometries: Different crushing tasks require blades with different geometries. Some blades need to have specific curvatures or angles to achieve the best crushing effect. By rotating and revolving the position, the grinding angle and path can be flexibly adjusted according to the design requirements of the blade, so as to accurately grind the blade and meet the requirements of different crushing operations for the blade shape.
[0036] Specifically, the position moving mechanism 4 includes a moving plate 41, a moving block 42, a moving motor 43, a moving gear 44 and a moving rack 45. The moving block 42 is located at the bottom of the moving plate 41. The moving plate 41 is slidably connected to the top of the rotating plate 32 through the moving block 42. The moving motor 43 is located inside the rotating plate 32. The moving gear 44 is connected to the main shaft of the moving motor 43. The moving rack 45 is located at the bottom of the moving plate 41. The moving rack 45 meshes with the moving gear 44.
[0037] When grinding three crushing knives and repairing different crushing knives respectively, at this time, the moving motor 43 works to drive the moving gear 44 to rotate on the moving rack 45, thereby driving the moving plate 41 to move horizontally on the rotating plate 32 through the moving block 42, thereby driving the position of the corresponding crushing knife to move, moving the position of the crushing knife to the corresponding grinding position, and performing the grinding work on different crushing knives.
[0038] Specifically, the grinding and fixing mechanism 5 includes two groups of fixing components, which are symmetrically arranged on the top of the movable plate 41, each group of the fixing components includes a fixed motor 51, a rotating shaft 52 and three groups of fixing parts 53, and the three groups of fixing parts 53 are equidistantly arranged on the top of the movable plate 41, the fixed motor 51 is located at the top of the movable plate 41, and the rotating shaft 52 is connected to the main shaft of the fixed motor 51 by driving; each group of fixing parts 53 includes a fixed seat 54, a slide groove 55 is provided in the fixed seat 54, a protrusion 56 is provided on the top of the fixed seat 54, three threaded sections are provided on the rotating shaft 52, a slidingly matched fixing plate 57 is provided on the fixed seat 54, the fixing plate 57 is threadedly connected to the threaded section, and a bearing plate 58 plug-matched with the fixed seat 54 is provided on the fixed plate 57.
[0039] The two ends of the crushing knife are limited and fixed, and the two ends of the crushing knife are placed on two carrying plates 58. Then the fixed motor 51 works to drive the rotating shaft 52 to rotate on the corresponding fixed seat 54. The rotation of the rotating shaft 52 will drive the three threaded sections to rotate respectively, thereby driving the position of the fixed plate 57 to move horizontally in the slide groove 55. The movement of the fixed plate 57 will enable the fixed plate 57 and the protrusion 56 to fix the positions of the two ends of the crushing knife to prevent the crushing knife from shaking during the grinding process of the crushing knife. Three sets of fixing parts 53 are provided at the top position of the movable plate 41, so that the three crushing knives can be ground at the same time during the grinding process of the crushing knife, thereby improving the work efficiency.
[0040] Specifically, a fluororubber plate is provided on the protrusion 56 and the fixing plate 57. The fluororubber plate has a high friction coefficient; when the crushing knife is placed between the protrusion 56 and the fixing plate 57, the fluororubber plate is in close contact with the surface of the crushing knife, which can generate a large friction force. This friction force can effectively prevent the crushing knife from being displaced or shaken during the grinding process. The fluororubber plate is relatively soft in texture. In the process of fixing the crushing knife, it contacts the surface of the crushing knife and plays a buffering role, thereby avoiding the metal protrusion 56 or the fixing plate 57 directly contacting the crushing knife and causing scratches.
[0041] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims
1. A positioning device for grinding and machining a crushing tool used in a knife grinding machine tool, characterized in that, It includes a positioning seat (1), on which a position adjustment mechanism (2) for driving the crushing knife to incline is provided. The position adjustment mechanism (2) is slidably engaged with the positioning seat (1). On the position adjustment mechanism (2), a position rotation mechanism (3) for driving the crushing knife to rotate is provided. The position rotation mechanism (3) is rotatably connected to the position adjustment mechanism (2). On the position rotation mechanism (3), a position movement mechanism (4) for driving the crushing knife to move is provided. The position movement mechanism (4) is slidably engaged with the position rotation mechanism (3). On the position movement mechanism (4), a grinding and fixing mechanism (5) for fixing the crushing knife is provided.
2. A positioning device for grinding and machining a crushing tool used in a grinding machine tool according to claim 1, wherein: On the positioning seat (1), two symmetrically arranged vertical plates (11) are provided, and each vertical plate (11) is provided with an inclined groove (12). On the positioning seat (1), two symmetrically arranged slide rails (13) are provided.
3. A positioning device for grinding and machining a crushing tool used in a knife grinding machine tool according to claim 1, characterized in that: The position adjustment mechanism (2) includes an adjustment electric cylinder (21), an adjustment plate (22), a rotating plate (23) and a vertical plate (24). The adjustment electric cylinder (21) is horizontally arranged on the positioning seat (1). The adjustment plate (22) is horizontally slidably connected between the two slide rails (13). The telescopic end of the adjustment electric cylinder (21) is connected to the adjustment plate (22). The vertical plate (24) is located at the end of the adjustment plate (22). A horizontally arranged horizontal shaft (25) is provided on the vertical plate (24). The horizontal shaft (25) is rotatably connected to the vertical plate (24). The two ends of the horizontal shaft (25) are respectively slidably engaged with the two inclined grooves (12). The bottom of the rotating plate (23) is fixedly connected to the horizontal shaft (25). The bottom of the rotating plate (23) is rotatably connected to the vertical plate (24).
4. A positioning device for grinding and machining a crushing tool used in a knife grinding machine tool according to claim 3, characterized in that: The position rotation mechanism (3) includes a rotation motor (31) and a rotation plate (32). The rotation motor (31) is located at the bottom of the rotating plate (23). The rotation plate (32) is horizontally arranged on the top of the rotating plate (23) and is connected to the main shaft of the rotation motor (31).
5. A positioning device for grinding and machining a crushing tool used in a knife grinding machine tool according to claim 4, characterized in that: The position movement mechanism (4) includes a moving plate (41), a moving block (42), a moving motor (43), a moving gear (44) and a moving rack (45). The moving block (42) is located at the bottom of the moving plate (41). The moving plate (41) is slidably connected to the top of the rotation plate (32) through the moving block (42). The moving motor (43) is located inside the rotation plate (32). The moving gear (44) is connected to the main shaft of the moving motor (43). The moving rack (45) is located at the bottom of the moving plate (41). The moving rack (45) is meshed with the moving gear (44).
6. The positioning device for grinding and machining of the crushing cutter used in the knife grinding machine tool according to claim 5, characterized in that: The grinding and fixing mechanism (5) comprises two groups of fixing components, which are symmetrically arranged on the top of the moving plate (41), and each group of the fixing components comprises a fixing motor (51), a rotating shaft (52) and three groups of fixing parts (53), which are arranged at equal intervals on the top of the moving plate (41). The fixing motor (51) is located on the top of the moving plate (41), and the rotating shaft (52) is drivingly connected to the main shaft of the fixing motor (51).
7. A positioning device for grinding and machining a crushing tool used in a knife grinding machine tool according to claim 6, characterized in that: Each group of fixing parts (53) comprises a fixing seat (54), a sliding groove (55) is arranged in the fixing seat (54), a protrusion (56) is arranged on the top of the fixing seat (54), three threaded sections are arranged on the rotating shaft (52), a slidingly matched fixing plate (57) is arranged on the fixing seat (54), the fixing plate (57) is threadedly connected to the threaded section, and a bearing plate (58) is arranged on the fixing plate (57) to be plugged and matched with the fixing seat (54).
8. A positioning device for grinding and machining a crushing tool used in a knife sharpening machine tool according to claim 7, characterized in that: Fluorine rubber plates are provided on the protrusion (56) and the fixing plate (57).