Knife sharpener rotary feeding mechanism of chopping device

Abstract

The technical scheme of the utility model discloses a knife sharpener rotary feeding mechanism of a shredding device. The knife sharpener rotary feeding mechanism comprises a shredding device side plate, a sliding rail, a square guide rail, a pull rod, a linear bearing, a connecting plate, a knife sharpening stone, a ratchet wheel, a blocking piece, an elastic piece and a connecting column. The sliding rail and the square guide rail are installed between the two chopper side plates, the sliding rail penetrates through the linear bearing, one end of the connecting plate is fixedly connected with the linear bearing, the other end of the connecting plate is installed on the square guide rail, one end of the pull rod penetrates through the chopper side plates, and the other end of the pull rod is fixedly connected with the connecting plate. The connecting plate is connected with the connecting column through threads, the knife stone is fixed to the lower end of the connecting column, the ratchet wheel is installed at the upper end of the connecting column, one end of the blocking piece is fixed to a chopper side plate, the other end of the blocking piece is clamped between adjacent teeth of the ratchet wheel, the lower end of the elastic piece is installed on the inner side wall of the connecting plate, and the upper end of the elastic piece is clamped between the adjacent teeth of the ratchet wheel. Left-right movement, rotation and downward movement of the knife stone can be achieved at the same time by pulling the pull rod back and forth, and the knife sharpening quality and accuracy are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and in particular relates to a rotary feeding mechanism of a knife sharpener of a chopping device. Background Art

[0002] Silage is an important foundation of animal husbandry, and corn stalks are the raw materials of high-quality silage. When harvesting silage, corn stalks or grass enter the chopping device through the feeding system for chopping, and then the chopped materials are thrown out and collected through the throwing device. The chopping device chops the straw and grass fed into the chopping device through the cooperation of the moving knife and the fixed knife. After the chopping device has been working for a period of time, the sharpness of the moving knife decreases, the cutting performance deteriorates, and the power consumption increases. The moving knife needs to be sharpened to make it sharp again. At present, a knife sharpener is usually installed on the shredding device, and the movable knife is sharpened by the knife sharpener. However, the knife sharpener can usually only reciprocate between the two side plates of the shredding device, and the movable knife can only be sharpened by one side of the knife sharpener. When the grinding surface of the grindstone for grinding the knife is worn, the distance between the grindstone and the movable knife becomes larger, and the movable knife can no longer be sharpened. It is necessary to manually adjust the height of the grindstone and replace the grinding surface to re-realize the sharpening function. The manual adjustment operation is cumbersome, time-consuming, labor-intensive, and inefficient.

[0003] Patent CN218363679U discloses an automatic knife sharpening mechanism for a silage machine chopping device, including a reciprocating mechanism, a feeding mechanism and a ratchet mechanism. The feeding mechanism includes a vertically arranged connecting pipe, the connecting pipe is connected to the reciprocating mechanism, a feeding rod arranged inside the connecting pipe, an external thread is arranged in the middle of the feeding rod, the top of the feeding rod extends out of the connecting pipe, and a ratchet is arranged at the top of the feeding rod; a sleeve arranged inside the connecting pipe, the sleeve is sleeved on the outside of the feeding rod, an internal thread matched with the external thread is arranged on the upper part of the sleeve, and a strip-shaped protrusion matched with the guide groove is arranged on the outer wall of the sleeve; a The whetstone is arranged at the bottom end of the sleeve; the reciprocating mechanism is used to drive the connecting tube to make reciprocating motion, and the pawl mechanism drives the ratchet wheel to rotate when the connecting tube moves to the turning point; the cooperation between the ratchet wheel and the pawl enables the whetstone to be automatically fed each time the feeding mechanism moves to the turning point, but the movement of the whetstone between the side plates is realized by driving the reciprocating mechanism by the cylinder, and after a long period of sharpening, it is easy to deform, resulting in the change of the trajectory of the reciprocating motion of the whetstone, and the ratchet wheel is driven to rotate by the pawl through the annular boss and the retaining ring, the structure is complicated, and the parts processing operation and installation are troublesome. Therefore, it is necessary to develop a rotary feeding mechanism for a knife sharpener that can realize the reciprocating motion and downward movement of the knife sharpener, and has a simple structure, precise positioning, and simple operation. Utility Model Content

[0004] In order to solve the existing technical problems, the utility model provides a rotary feeding mechanism for a knife sharpener of a shredder device. Through the cooperation of a slide rail, a square guide rail, a pull rod, a connecting plate, a ratchet, a connecting column and a grindstone, the grindstone can be simultaneously moved left and right, rotated and moved downward by pulling the pull rod back and forth, thereby improving the quality and accuracy of knife sharpening and being easy to operate.

[0005] The technical scheme of the utility model is: a knife sharpener rotary feeding mechanism of a shredder device, comprising a shredder side plate, a slide rail, a square guide rail, a pull rod, a linear bearing, a connecting plate, a grindstone, a ratchet, a baffle, a spring and a connecting column; the slide rail and the square guide rail are installed between two shredder side plates, the slide rail passes through the linear bearing, one end of the connecting plate is fixedly connected to the linear bearing, the other end of the connecting plate is installed on the square guide rail and slides along the square guide rail, one end of the pull rod passes through the shredder side plate, and the other end of the pull rod is fixedly connected to the connecting plate; a connecting column is installed in the middle of the connecting plate, the connecting plate is connected to the connecting column by threads, the grindstone is fixed to the lower end of the connecting column, the ratchet is installed at the upper end of the connecting column, one end of the baffle is fixed to the shredder side plate, and the other end is clamped between adjacent teeth of the ratchet, the lower end of the spring is installed on the inner side wall of the connecting plate, and the upper end of the spring is clamped between adjacent teeth of the ratchet.

[0006] Furthermore, the slide rail and the square guide rail are parallel to each other, and the pull rod is arranged between the slide rail and the square guide rail.

[0007] Furthermore, a mounting hole is opened in the middle of the connecting plate, a thread is set on the inner wall of the mounting hole, a thread is set on the outer wall of the connecting column, the thread of the mounting hole and the thread of the connecting column are adapted to each other, and the connecting column is connected to the whetstone on the lower side after passing through the mounting hole.

[0008] Furthermore, the connecting plate and the square guide rail are connected via a deep groove ball bearing and a cushion block, the deep groove ball bearing is arranged on the lower side of the square guide rail, the cushion block is arranged on the upper side of the square guide rail, and the deep groove ball bearing and the cushion block are fixedly connected to the connecting plate.

[0009] Furthermore, there are two deep groove ball bearings in total.

[0010] Furthermore, when the connecting plate moves along the slide rail and the square guide rail to one end of the chopper side plate adjacent to the baffle, the baffle pushes the ratchet to rotate a distance of one tooth. After the ratchet rotates a distance of one tooth, the spring plate positions the ratchet to prevent the ratchet from rotating back.

[0011] Furthermore, the slide rail is a light bar.

[0012] Furthermore, a long hole adjustment plate is arranged on the outer side of the chopper side plate, the long hole adjustment plate is arranged on the side away from the baffle, and the long hole adjustment plate is connected to the slide rail for adjusting the position of the slide rail.

[0013] When the rotary feed mechanism of the knife sharpener of a shredder device of the utility model is working, the rotary feed mechanism of the knife sharpener is installed above the moving knife of the shredder device. When in use, the upper guard plate of the moving knife is first removed to expose the moving knife, and then the moving knife is sharpened. By pulling back the pull rod, the connecting plate is driven to reciprocate left and right along the slide rail and the square guide rail, thereby driving the whetstone under the connecting plate to reciprocate left and right, realizing repeated contact and grinding between the whetstone and the moving blade, and sharpening the moving knife. When the connecting plate moves to the rightmost end along the slide rail and the square guide rail each time, the baffle pushes the ratchet wheel to rotate a distance of one tooth, and the teeth of the ratchet wheel are clamped by the spring piece to prevent the ratchet wheel from rotating. When the ratchet wheel rotates, it drives the connecting column to rotate. Since the threads of the mounting holes of the connecting column and the connecting plate are compatible, the connecting column rotates and moves downward, thereby driving the whetstone to rotate and move downward, and realizing the adjustment of the positions of the whetstone and the moving knife. In addition, when the device of the utility model is installed, the position of the slide rail is adjusted through the long hole adjustment plate, so that the running track of the grindstone is adjusted to parallel movement, thereby improving the grinding quality.

[0014] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0015] The utility model realizes the left-right reciprocating movement of the whetstone through the cooperation of the slide rail, the square guide rail, the pull rod and the connecting plate, realizes the rotation and downward movement of the whetstone while the left-right reciprocating movement is realized through the cooperation of the ratchet, the connecting column and the connecting plate, and the left-right movement, rotation and downward movement of the whetstone can be realized simultaneously by only pulling the pull rod back and forth, and the operation is simple. The rotation and positioning of the ratchet wheel are realized when the whetstone moves to the rightmost end through the baffle and the spring sheet to prevent the ratchet wheel from rotating; the trajectory of the left-right reciprocating movement of the whetstone is guided by the slide rail and the square guide rail, so that the moving trajectory of the whetstone is parallel and stable, and the moving trajectory is prevented from being offset when the whetstone moves left-right reciprocatingly for a long time. The reciprocating movement of the connecting plate and the rotation of the ratchet wheel are realized by pulling the pull rod back and forth, the left-right movement and the up-and-down movement position of the whetstone are regulated, the position of the whetstone is accurately regulated, and the distance between the whetstone and the moving knife is accurately adjusted, the quality and efficiency of sharpening are high, the structure is simple, and the installation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the installation structure of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the utility model when in use.

[0019] In the figure, the chopper side plate 1, the slide rail 2, the square guide rail 3, the pull rod 4, the linear bearing 5, the connecting plate 6, the grindstone 7, the ratchet 8, the baffle 9, the spring 10, the connecting column 11, the mounting hole 12, the deep groove ball bearing 13, the cushion block 14, the moving knife 15, the upper guard plate 16, and the long hole adjustment plate 17. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Example 1

[0021] Reference Figure 1-3 In the invention, a knife sharpener rotary feeding mechanism of a shredder device comprises a shredder side plate 1, a slide rail 2, a square guide rail 3, a pull rod 4, a linear bearing 5, a connecting plate 6, a grindstone 7, a ratchet 8, a baffle 9, a spring 10 and a connecting column 11; the slide rail 2 and the square guide rail 3 are installed between two shredder side plates 1, the slide rail 2 passes through the linear bearing 5, one end of the connecting plate 6 is fixedly connected to the linear bearing 5, the other end of the connecting plate 6 is installed on the square guide rail 3 and slides along the square guide rail 3, one end of the pull rod 4 The end passes through the chopper side plate 1, and the other end of the pull rod 4 is fixedly connected to the connecting plate 6; a connecting column 11 is installed in the middle of the connecting plate 6, and the connecting plate 6 and the connecting column 11 are connected by threads. The whetstone 7 is fixed to the lower end of the connecting column 11, and the ratchet 8 is installed at the upper end of the connecting column 11. One end of the baffle 9 is fixed on the chopper side plate 1, and the other end is stuck between adjacent teeth of the ratchet 8. The lower end of the spring piece 10 is installed on the inner side wall of the connecting plate 6, and the upper end of the spring piece 10 is stuck between adjacent teeth of the ratchet 8.

[0022] By pulling the pull rod 4 back and forth, the connecting plate 6 can be driven to reciprocate left and right, thereby driving the whetstone 7 to reciprocate left and right. When the connecting plate 6 and the whetstone 7 move to the right end each time, the baffle 9 will push the ratchet 8 to rotate one tooth, and the ratchet 8 will drive the connecting column 11 to rotate when it rotates. The connecting column 11 is threadedly connected to the connecting plate 6, so the connecting column 11 will move downward when it rotates, thereby driving the whetstone 7 to rotate and move downward at the same time, so that each position of the whetstone 7 is in full contact with the moving blade, and the whetstone 7 is close to the moving knife 15 to maintain a suitable sharpening distance. Therefore, by pulling the pull rod 4 back and forth, the three actions of the whetstone 7, namely, reciprocating left and right, rotating continuously, and moving downward, can be achieved, so that the whetstone 7 has a better sharpening effect on the moving knife 15, and the whetstone 7 is more fully utilized.

[0023] Furthermore, the slide rail 2 and the square guide rail 3 are parallel to each other, and the pull rod 4 is arranged between the slide rail 2 and the square guide rail 3. The slide rail 2 and the square guide rail 3 limit the left and right moving track of the connecting plate 6, ensuring that when the pull rod 4 is pulled back and forth, the connecting plate 6 moves in parallel, and even after the grindstone 7 has been working for a long time, the left and right reciprocating motion of the connecting plate 6 is kept parallel by the limiting effect of the slide rail 2 and the square guide rail 3.

[0024] Furthermore, a mounting hole 12 is provided in the middle of the connecting plate 6, a thread is provided on the inner wall of the mounting hole 12, a thread is provided on the outer wall of the connecting column 11, the thread of the mounting hole 12 is adapted to the thread of the connecting column 11, and the connecting column 11 is connected to the grindstone 7 on the lower side after passing through the mounting hole 12. The connecting column 11 is threadedly connected to the connecting plate 6, so that the connecting column 11 rotates and moves downward.

[0025] Furthermore, the connecting plate 6 and the square guide rail 3 are connected via a deep groove ball bearing 13 and a cushion block 14, the deep groove ball bearing 13 is arranged on the lower side of the square guide rail 3, the cushion block 14 is arranged on the upper side of the square guide rail 3, and the deep groove ball bearing 13 and the cushion block 14 are fixedly connected to the connecting plate 6. The connecting plate 6 clamps the square guide rail 3 via the deep groove ball bearing 13 and the cushion block 14, which not only limits the connecting plate 6, but also ensures that one end of the connecting plate 6 slides smoothly along the square guide rail 3.

[0026] Furthermore, there are two deep groove ball bearings 13 in total.

[0027] Furthermore, when the connecting plate 6 moves along the slide rail 2 and the square guide rail 3 to one end of the chopper side plate 1 adjacent to the baffle 9, the baffle 9 pushes the ratchet 8 to rotate a tooth distance. When the ratchet 8 rotates a tooth distance, the spring 10 positions the ratchet 8 to prevent the ratchet 8 from rotating. After the ratchet 8 rotates, the pull rod 4 is at the far right end. It is noted that the pull rod 4 needs to be pulled back. The connecting plate 6 moves to the left, which may drive the ratchet 8 to rotate. At this time, the teeth of the ratchet 8 are clamped by the spring 10, effectively preventing the ratchet 8 from rotating and preventing the grindstone 7 from moving upward.

[0028] Furthermore, the slide rail 2 is a smooth bar.

[0029] Furthermore, a long hole adjustment plate 17 is provided on the outer side of the chopper side plate 1, and the long hole adjustment plate 17 is provided on a side away from the baffle 9, and the long hole adjustment plate 17 is connected to the slide rail 2 for adjusting the position of the slide rail 2. The position of the slide rail 2 can be adjusted by the long hole adjustment plate 17, so that the slide rail 2, the square guide rail 3 and the connecting plate 6 cooperate to ensure that the running track of the grindstone 7 is adjusted to be parallel, thereby improving the quality of the grind.

[0030] When the rotary feed mechanism of the knife sharpener of the shredder device of the utility model is working, the rotary feed mechanism of the knife sharpener is installed above the movable knife 15 of the shredder device. When in use, the upper guard plate 16 of the movable knife 15 is first removed to expose the movable knife 15, and then the movable knife 15 is sharpened. By pulling back the pull rod 4, the connecting plate 6 is driven to reciprocate left and right along the slide rail 2 and the square guide rail 3, thereby driving the whetstone 7 below the connecting plate 6 to reciprocate left and right, realizing repeated contact and grinding between the whetstone 7 and the movable blade, and sharpening the movable knife 15. When the connecting plate 6 moves to the rightmost end along the slide rail 2 and the square guide rail 3 each time, the baffle 9 pushes the ratchet 8 to rotate a tooth distance, and the spring 10 clamps the teeth of the ratchet 8 to prevent the ratchet 8 from rotating. When the ratchet 8 rotates, it drives the connecting column 11 to rotate. Since the threads of the connecting column 11 and the mounting hole 12 of the connecting plate 6 are adapted, the connecting column 11 rotates and moves downward, thereby driving the grindstone 7 to rotate and move downward, and adjusting the positions of the grindstone 7 and the movable knife 15. In addition, when the device of the utility model is installed, the position of the slide rail 2 is adjusted by the long hole adjustment plate 17, so that the running track of the grindstone 7 is adjusted to parallel movement, thereby improving the quality of sharpening.

Claims

1. A rotary feeding mechanism for a knife sharpener of a shredder, characterized in that: The invention comprises a chopper side plate (1), a slide rail (2), a square guide rail (3), a pull rod (4), a linear bearing (5), a connecting plate (6), a grindstone (7), a ratchet (8), a baffle (9), a spring (10) and a connecting column (11); the slide rail (2) and the square guide rail (3) are installed between two chopper side plates (1), the slide rail (2) passes through the linear bearing (5), one end of the connecting plate (6) is fixedly connected to the linear bearing (5), the other end of the connecting plate (6) is installed on the square guide rail (3) and slides along the square guide rail (3), one end of the pull rod (4) passes through the chopper side plates (1), and the other end of the connecting plate (6) is fixedly connected to the linear bearing (5). The chopper side plate (1) is provided with a connecting rod (4), and the other end of the pull rod (4) is fixedly connected to the connecting plate (6); a connecting column (11) is installed in the middle of the connecting plate (6), and the connecting plate (6) and the connecting column (11) are connected by threads; a grindstone (7) is fixed to the lower end of the connecting column (11); a ratchet (8) is installed at the upper end of the connecting column (11); one end of a baffle (9) is fixed to the chopper side plate (1), and the other end is clamped between adjacent teeth of the ratchet (8); the lower end of a spring sheet (10) is installed on the inner side wall of the connecting plate (6), and the upper end of the spring sheet (10) is clamped between adjacent teeth of the ratchet (8).

2. The rotary feeding mechanism of a knife sharpener of a shredder device according to claim 1, characterized in that: The slide rail (2) and the square guide rail (3) are parallel to each other, and the pull rod (4) is arranged between the slide rail (2) and the square guide rail (3).

3. The rotary feeding mechanism of a knife sharpener of a shredder device according to claim 1, characterized in that: A mounting hole (12) is provided in the middle of the connecting plate (6), a thread is provided on the inner wall of the mounting hole (12), a thread is provided on the outer wall of the connecting column (11), the thread of the mounting hole (12) and the thread of the connecting column (11) are matched, and the connecting column (11) passes through the mounting hole (12) and is connected to the grindstone (7) at the lower side.

4. The rotary feeding mechanism of a knife sharpener of a shredder device according to claim 1, characterized in that: The connecting plate (6) and the square guide rail (3) are connected via a deep groove ball bearing (13) and a cushion block (14); the deep groove ball bearing (13) is arranged on the lower side of the square guide rail (3), the cushion block (14) is arranged on the upper side of the square guide rail (3), and the deep groove ball bearing (13) and the cushion block (14) are fixedly connected to the connecting plate (6).

5. The rotary feeding mechanism of a knife sharpener of a shredder device according to claim 4, characterized in that: There are two deep groove ball bearings (13) in total.

6. The rotary feeding mechanism of a knife sharpener of a shredder device according to claim 1, characterized in that: When the connecting plate (6) moves along the slide rail (2) and the square guide rail (3) to one end of the chopper side plate (1) adjacent to the baffle (9), the baffle (9) pushes the ratchet (8) to rotate a distance of one tooth. When the ratchet (8) rotates a distance of one tooth, the spring (10) positions the ratchet (8) to prevent the ratchet (8) from rotating.

7. A rotary feeding mechanism for a knife sharpener of a shredder according to claim 1 or 6, characterized in that: The slide rail (2) is a light bar.

8. The rotary feeding mechanism of a knife sharpener of a shredder device according to claim 1, characterized in that: A long hole adjustment plate (17) is arranged on the outside of the chopper side plate (1), the long hole adjustment plate (17) is arranged on a side away from the baffle (9), and the long hole adjustment plate (17) is connected to the slide rail (2) for adjusting the position of the slide rail (2).

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