Fertilizing device capable of controlling fertilizing amount for corn cultivation and planting

Abstract

The invention relates to the technical field of fertilization for corn cultivation and planting, and discloses a fertilization device capable of controlling the fertilization amount for corn cultivation and planting, the fertilization device comprises a fertilization box, and a frame is fixedly arranged below the fertilization box; the box door is arranged on the front surface of the fertilizing box; a material guiding through groove is horizontally formed in the bottom surface of the frame in a penetrating mode, and a fertilizer tank is vertically arranged on the top surface of the fertilizer applying box in a penetrating mode. By arranging the material guide mechanism, a control part in the fertilizing mechanism is driven to operate while a driving part is used for quantitatively taking fertilizer in a fertilizer tank, so that the working efficiency of a motor is improved; by arranging an adjusting part, the radial position of a stress block is controlled by rotating a threaded rod, so that the position of a limiting frame in an adjusting groove is adjusted, the placement space of a fertilizer in the adjusting groove is increased and reduced, and the problem that the fertilization amount cannot be adjusted when fertilization is completed is solved. The fertilizing amount can be quickly adjusted by rotating a threaded rod arranged on the outer side of the fertilizing box, so that the whole device is efficient and convenient.

Description

Technical Field

[0001] This invention relates to the field of corn cultivation and fertilization technology, specifically to a fertilization device for corn cultivation that allows for controllable fertilization. Background Technology

[0002] Maize is a plant belonging to the Poaceae family and the genus *Zea*, commonly known as corn. It is a tall, annual herb. The culms are erect, usually unbranched, 1-4 meters tall, with aerial prop roots at the basal nodes. The leaf sheaths have transverse veins; the ligule is membranous, about 2 mm long; the leaf blades are flat and broad, linear-lanceolate, with a rounded, auriculate base.

[0003] Fertilizer application equipment is needed when planting corn;

[0004] Existing fertilization equipment has the problem of unadjustable fertilizer application rate, meaning that the amount of fertilizer applied by the fertilization device cannot be controlled independently during fertilization, which leads to fertilizer waste and uneven fertilization. This has significant limitations and makes it difficult to popularize and use.

[0005] Therefore, a fertilizer application device with controllable fertilizer application rate for corn cultivation is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a fertilizer application device for corn cultivation with controllable fertilizer application, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a fertilizer application device for corn cultivation with controllable fertilizer application, comprising a fertilizer box;

[0008] A frame is fixedly installed below the fertilizer box;

[0009] and the door installed on the front of the fertilizer box;

[0010] The vehicle is equipped with wheels mounted on the bottom of the frame, a material guide groove is horizontally opened through the bottom of the frame, and a fertilizer tank is vertically installed through the top of the fertilizer box.

[0011] The fertilizer box is equipped with a material guiding mechanism below the fertilizer tank, and the fertilizer applicator is located below the material guiding mechanism.

[0012] The material guiding mechanism includes a driving unit and an adjusting unit;

[0013] The fertilization mechanism includes a control unit and a material guiding unit.

[0014] Preferably, the drive unit includes a motor, which is fixedly mounted on the side of the fertilizer box. The motor output rod extends through the side of the fertilizer box into the inside of the fertilizer box. The fertilizer tank is vertically connected. A guide sleeve is vertically mounted inside the fertilizer box at the position corresponding to the lower part of the fertilizer tank. The top end of the guide sleeve is fixedly connected to the bottom end of the fertilizer tank.

[0015] Preferably, the guide sleeve has a rotating ring inside for sealing and rotation, the bottom end of the guide sleeve is through, the fertilizer box has a rotating cylinder horizontally arranged inside, the rotating cylinder is arranged through the rotating ring and the guide sleeve on the left and right, the surface of the guide sleeve is fixedly connected to the inner wall of the rotating ring, and the left end of the guide sleeve rotates through the side of the fertilizer box and extends to the left side of the fertilizer box.

[0016] Preferably, two turntables are vertically arranged on the right side of the guide sleeve, and a connecting rod is horizontally arranged between the two turntables. The two ends of the connecting rod are fixedly connected to the sides of the two turntables respectively. The side of the left turntable is fixedly connected to the side of the guide sleeve, and the side of the right turntable is fixedly connected to the end face of the motor output rod.

[0017] Preferably, the adjusting part includes a limiting frame, and the side of the rotating ring is provided with an adjusting groove along the radial direction of the rotating ring. The limiting frame is slidably and sealed inside the adjusting groove along the radial direction of the rotating ring. A reinforcing plate is fixedly provided inside the limiting frame, and a moving rod is fixedly provided through the reinforcing plate. The inner end of the moving rod extends through the inner wall of the adjusting groove and into the rotating cylinder. A connecting spring is provided inside the limiting frame, and the two ends of the connecting spring are fixedly connected to the inner wall of the limiting frame and the inner wall of the adjusting groove, respectively.

[0018] Preferably, a threaded rod is horizontally arranged inside the rotating cylinder. The threaded rod extends from the left end through the inner wall of the rotating cylinder to the outer side of the left end of the rotating cylinder. A pressing head is arranged at the right end of the threaded rod. The pressing head is conical. The side of the pressing head is rotatably connected to the right end face of the threaded rod through a bearing seat. A force-bearing block is arranged on the outer side of the pressing head. The side of the force-bearing block near the pressing head is inclined. The inclined surface of the force-bearing block is in pressing contact with the surface of the force-bearing block.

[0019] Preferably, the control unit includes a squeezing frame, which is sleeved on the outside of the connecting rod. The surface of the connecting rod contacts the inner wall of the squeezing frame. The front and rear sides of the squeezing frame are slidably connected to the inner wall of the fertilizer box. A connecting plate is vertically fixed on the bottom end face of the squeezing frame, and a force-bearing plate is horizontally fixed on the lower end face of the connecting plate. The left and right end faces of the force-bearing plate are slidably connected to the inner wall of the fertilizer box.

[0020] Preferably, the material guiding part includes a guide cylinder, which is fixedly installed through the force plate at the top and bottom. A guide hopper is fitted on the outer side of the bottom end of the material guiding sleeve, and the bottom end of the guide hopper is fixedly connected to the top end of the guide cylinder. A fixed sleeve is fitted on the outer side of the guide cylinder in a sealing and sliding manner. The bottom end of the fixed sleeve is fixedly installed through the bottom surface of the fertilizer box and the material guiding groove, extending to the bottom of the frame. A conical component is vertically installed inside the fixed sleeve. Both the top and bottom ends of the conical component are conical. A sliding ring is fixedly connected to the outer side of the conical component by a connecting strip. A sliding ring groove is vertically opened on the inner side of the fixed sleeve. The sliding ring is slidably installed inside the sliding ring groove. A connecting spring is vertically installed inside the sliding ring groove. The two ends of the connecting spring are fixedly connected to the inner wall of the sliding ring groove and the bottom surface of the sliding ring, respectively. A blocking ring is fixedly installed inside the guide cylinder. The inner wall of the blocking ring is inclined and adapted to the inclined surface at the upper end of the conical component.

[0021] Compared with the prior art, the beneficial effects of the present invention are: this fertilizer application device for corn cultivation allows for controllable fertilizer application.

[0022] 1) By setting up a material guiding mechanism, the drive unit can quantitatively extract fertilizer from the fertilizer tank while driving the control unit in the fertilization mechanism to operate, thereby improving the working efficiency of the motor.

[0023] 2) By setting up an adjustment section, the radial position of the force block is controlled by rotating the threaded rod, thereby adjusting the position of the limit frame in the adjustment groove. This allows the fertilizer placement space in the adjustment groove to be increased or decreased, solving the problem of the inability to adjust the fertilizer application rate during fertilization. The fertilizer application rate can be quickly adjusted by simply rotating the threaded rod located on the outside of the fertilizer box, making the whole device efficient and convenient.

[0024] 3) By setting up a fertilization mechanism, the guide cylinder in the material guide section moves downward and pushes the material blocking ring to squeeze the top of the conical part. Since the top surface of the conical part is in contact with the inner wall of the material blocking ring, the fertilizer above the material blocking ring stays inside the guide cylinder. Then the conical part continues to move downward and drills a hole in the soil below the fixed sleeve. Then the material blocking ring moves upward and the conical part moves upward as well, until the sliding ring is at the top of the sliding ring groove. The conical part retracts the fixed sleeve, the material blocking ring separates from the conical part, and the fertilizer above the material blocking ring is guided by the fixed sleeve to fall into the hole, thus completing the precise fertilization of corn. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a three-dimensional sectional view of the overall front end of the present invention;

[0027] Figure 3 This is a three-dimensional sectional view of the overall front structure of the present invention;

[0028] Figure 4 This is a three-dimensional sectional view of a partial internal structure of the present invention;

[0029] Figure 5 This is a three-dimensional exploded cross-sectional view of a portion of the structure of the present invention.

[0030] In the diagram: Fertilizer box 1, box door 11, frame 2, material guide channel 21, traveling wheel 22, fertilizer tank 3, material guide mechanism 4, motor 41, turntable 42, connecting rod 43, rotating cylinder 44, rotating ring 45, material guide sleeve 46, adjusting part 47, adjusting groove 471, limiting frame 472, reinforcing plate 473, moving rod 474, force-bearing block 475, extrusion head 476, threaded rod 477, fertilizer applicator 5, extrusion frame 51, connecting plate 52, force-bearing plate 53, guide cylinder 54, guide hopper 55, fixing sleeve 56, conical part 57, sliding ring 571, sliding ring groove 572, material blocking ring 58. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1:

[0033] Please see Figures 1-5 The present invention provides a technical solution: a fertilizer application device for corn cultivation with controllable fertilizer application, including a fertilizer box 1;

[0034] A frame 2 is fixedly installed below the fertilizer box 1;

[0035] And the box door 11 installed on the front of the fertilizer box 1;

[0036] The frame 2 has a walking wheel 22 installed on the bottom surface of the frame 2. The bottom surface of the frame 2 is horizontally opened with a material guide channel 21, and the top surface of the fertilizer box 1 is vertically opened with a fertilizer tank 3.

[0037] Inside the fertilizer box 1, a material guiding mechanism 4 is provided below the fertilizer tank 3, and a fertilizer application mechanism 5 is provided below the material guiding mechanism 4.

[0038] The material guiding mechanism 4 includes a driving part and an adjusting part 47;

[0039] Fertilization mechanism 5 includes a control unit and a feed delivery unit;

[0040] The drive unit includes a motor 41, which is fixedly mounted on the side of the fertilizer box 1. The output rod of the motor 41 extends through the side of the fertilizer box 1 into the interior of the fertilizer box 1. The fertilizer tank 3 is vertically connected. Inside the fertilizer box 1, corresponding to the lower position of the fertilizer tank 3, a guide sleeve 46 is vertically installed. The top end of the guide sleeve 46 is fixedly connected to the bottom end of the fertilizer tank 3. A rotating ring 45 is rotatably installed inside the guide sleeve 46 and is sealed. The bottom end of the guide sleeve 46 is open. Inside the fertilizer box 1, a rotating cylinder 44 is horizontally installed and extends horizontally. A rotating ring 45 and a guide sleeve 46 are provided. The surface of the guide sleeve 46 is fixedly connected to the inner wall of the rotating ring 45. The left end of the guide sleeve 46 rotates through the side of the fertilizer box 1 and extends to the left side of the fertilizer box 1. Two turntables 42 are vertically arranged on the right side of the guide sleeve 46. A connecting rod 43 is horizontally arranged between the two turntables 42. The two ends of the connecting rod 43 are fixedly connected to the sides of the two turntables 42 respectively. The side of the left turntable 42 is fixedly connected to the side of the guide sleeve 46, and the side of the right turntable 42 is fixedly connected to the end face of the output rod of the motor 41.

[0041] The adjusting part 47 includes a limiting frame 472. An adjusting groove 471 is radially formed on the side of the rotating ring 45. The limiting frame 472 is radially and slidably disposed inside the adjusting groove 471. A reinforcing plate 473 is fixedly disposed inside the limiting frame 472. A moving rod 474 is fixedly disposed through the reinforcing plate 473. The inner end of the moving rod 474 extends through the inner wall of the adjusting groove 471 and into the rotating cylinder 44. A connecting spring is disposed inside the limiting frame 472. The two ends of the connecting spring are respectively connected to the inner wall of the limiting frame 472 and the adjusting groove 471. The inner wall is fixedly connected, and a threaded rod 477 is horizontally arranged inside the rotating cylinder 44. The threaded rod 477 extends from the left end of the rotating cylinder 44 through the inner wall to the outer side of the left end of the rotating cylinder 44. A pressing head 476 is arranged at the right end of the threaded rod 477. The pressing head 476 is conical. The side of the pressing head 476 is rotatably connected to the right end face of the threaded rod 477 through a bearing seat. A force-bearing block 475 is arranged on the outer side of the pressing head 476. The side of the force-bearing block 475 near the pressing head 476 is all inclined. The inclined surface of the force-bearing block 475 is in pressing contact with the surface of the force-bearing block 475.

[0042] Furthermore, in this embodiment, by setting up a material guiding mechanism 4, the driving unit quantitatively extracts fertilizer from inside the fertilizer tank 3 while driving the control unit in the fertilization mechanism 5 to operate, thereby improving the working efficiency of the motor 41. By setting up an adjustment unit 47, the radial position of the force block 475 is controlled by rotating the threaded rod 477, so that the position of the limit frame 472 in the adjustment groove 471 is adjusted, thereby increasing or decreasing the fertilizer placement space in the adjustment groove 471, solving the problem of the inability to adjust the amount of fertilizer during fertilization. The amount of fertilizer can be quickly adjusted by simply rotating the threaded rod 477 set on the outside of the fertilizer box 1, making the whole device efficient and convenient.

[0043] Example 2

[0044] Please see Figures 1-5 Furthermore, based on Embodiment 1, the control unit includes a squeezing frame 51, which is sleeved on the outside of the connecting rod 43. The surface of the connecting rod 43 contacts the inner wall of the squeezing frame 51. The front and rear sides of the squeezing frame 51 are slidably connected to the inner wall of the fertilizer box 1. A connecting plate 52 is vertically fixed on the bottom end face of the squeezing frame 51. A force-bearing plate 53 is horizontally fixed on the lower end face of the connecting plate 52. The left and right end faces of the force-bearing plate 53 are slidably connected to the inner wall of the fertilizer box 1.

[0045] The material guiding section includes a guide cylinder 54, which is fixedly installed through the stress plate 53. A guide hopper 55 is fitted on the outer side of the bottom end of the material guiding sleeve 46. The bottom end of the guide hopper 55 is fixedly connected to the top end of the guide cylinder 54. A fixing sleeve 56 is fitted on the outer side of the guide cylinder 54 in a sealing sliding manner. The bottom end of the fixing sleeve 56 is fixedly installed through the bottom surface of the fertilizer box 1 and the material guiding groove 21, extending to the bottom of the frame 2. A conical part 57 is vertically installed inside the fixing sleeve 56. Both the upper and lower ends of the conical part 57 are conical. 7. A sliding ring 571 is fixedly connected to the outside by a connecting strip. A sliding ring groove 572 is vertically opened on the inner side of the fixed sleeve 56. The sliding ring 571 is slidably disposed inside the sliding ring groove 572. A connecting spring 2 is vertically disposed inside the sliding ring groove 572. The two ends of the connecting spring 2 are fixedly connected to the inner wall of the sliding ring groove 572 and the bottom surface of the sliding ring 571, respectively. A material blocking ring 58 is fixedly disposed inside the guide cylinder 54. The inner wall of the material blocking ring 58 is inclined and adapted to the upper inclined surface of the tapered part 57.

[0046] Furthermore, in this embodiment, by setting up a fertilization mechanism 5, the guide cylinder 54 in the material guide section moves downward, and then pushes the blocking ring 58 to squeeze the top of the conical member 57. Since the top surface of the conical member 57 is in contact with the inner wall of the blocking ring 58, the fertilizer above the blocking ring 58 stays inside the guide cylinder 54. Then the conical member 57 continues to move downward, drilling a hole in the soil below the fixing sleeve 56. Then the blocking ring 58 moves upward, and the conical member 57 follows upward until the sliding ring 571 is at the top of the sliding ring groove 572. The conical member 57 retracts the fixing sleeve 56, the blocking ring 58 separates from the conical member 57, and the fertilizer above the blocking ring 58 is guided by the fixing sleeve 56 to fall into the hole, completing the precise fertilization of corn.

[0047] In use, by setting up the feeding mechanism 4, the drive unit quantitatively dispenses fertilizer from inside the fertilizer tank 3 while simultaneously driving the control unit in the fertilization mechanism 5, improving the working efficiency of the motor 41. By setting up the adjustment unit 47, the radial position of the force block 475 is controlled by rotating the threaded rod 477, thereby adjusting the position of the limit frame 472 inside the adjustment groove 471. This allows the fertilizer placement space in the adjustment groove 471 to be increased or decreased, solving the problem of the inability to adjust the fertilizer application rate. The fertilizer application rate can be quickly adjusted simply by rotating the threaded rod 477 located on the outside of the fertilizer box 1, making the entire device highly efficient and convenient. The guide cylinder 54 in the material guide section moves downward, and then pushes the blocking ring 58 to squeeze the top of the conical part 57. Since the top surface of the conical part 57 is in contact with the inner wall of the blocking ring 58, the fertilizer above the blocking ring 58 stays inside the guide cylinder 54. Then the conical part 57 continues to move downward to drill a hole in the soil below the fixing sleeve 56. Then the blocking ring 58 moves upward, and the conical part 57 moves upward as well, until the sliding ring 571 is at the top of the sliding ring groove 572. The conical part 57 retracts the fixing sleeve 56, and the blocking ring 58 separates from the conical part 57. The fertilizer above the blocking ring 58 is guided by the fixing sleeve 56 and falls into the hole, completing the precision fertilization of corn.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corn cultivation planting controlled fertilizer amount fertilizer device, comprising a fertilizer tank (1); A vehicle frame (2) is fixedly arranged below the fertilizer tank (1); And a tank door (11) is installed on the front of the fertilizer tank (1); and a walking wheel (22) installed at the bottom of the frame (2), characterized in that: The bottom surface of the vehicle frame (2) is horizontally and throughly provided with a material guiding groove (21), and the top surface of the fertilizer tank (1) is vertically and throughly provided with a fertilizer tank (3); A material guiding mechanism (4) is arranged inside the fertilizer tank (1) corresponding to the lower part of the fertilizer tank (3), and a fertilizer applying mechanism (5) is arranged below the material guiding mechanism (4); The material guiding mechanism (4) comprises a driving part and an adjusting part (47); The fertilizer applying mechanism (5) comprises a control part and a material guiding part.

2. The fertilizer device for corn cultivation and planting with controllable fertilizer amount according to claim 1, characterized in that: The driving part comprises a motor (41), which is fixedly arranged on the side surface of the fertilizer tank (1), and the output rod of the motor (41) extends through the side surface of the fertilizer tank (1) to the inside of the fertilizer tank (1), the fertilizer tank (3) is throughly arranged up and down, a material guiding sleeve (46) is vertically arranged inside the fertilizer tank (1) corresponding to the lower part of the fertilizer tank (3), and the top end of the material guiding sleeve (46) is fixedly and throughly arranged with the bottom end of the fertilizer tank (3).

3. The fertilizer device for corn cultivation and planting with controllable fertilizer amount according to claim 2, characterized in that: A rotating ring (45) is sealingly and rotatably arranged inside the material guiding sleeve (46), the bottom end of the material guiding sleeve (46) is throughly arranged, a rotating cylinder (44) is horizontally arranged inside the fertilizer tank (1), the rotating cylinder (44) is throughly arranged left and right of the rotating ring (45) and the material guiding sleeve (46), the surface of the material guiding sleeve (46) is fixedly connected with the inner wall of the rotating ring (45), and the left end of the material guiding sleeve (46) rotatably extends through the side surface of the fertilizer tank (1) to the left side of the fertilizer tank (1).

4. The fertilizer device for corn cultivation and planting with controllable fertilizer amount according to claim 3, characterized in that: Two rotating discs (42) are vertically arranged in sequence on the right side surface of the material guiding sleeve (46), a connecting rod (43) is horizontally arranged between the two rotating discs (42), the two ends of the connecting rod (43) are respectively fixedly connected with the side surfaces of the two rotating discs (42), the side surface of the left rotating disc (42) is fixedly connected with the side surface of the material guiding sleeve (46), and the side surface of the right rotating disc (42) is fixedly connected with the end surface of the output rod of the motor (41).

5. The fertilizer device for corn cultivation and planting with controllable fertilizer amount according to claim 4, characterized in that: The adjusting part (47) comprises a limiting frame (472), an adjusting groove (471) is formed in the radial direction of the rotating ring (45) on the side surface of the rotating ring (45), the limiting frame (472) is sealingly and slidingly arranged in the adjusting groove (471) in the radial direction of the rotating ring (45), a reinforcing plate (473) is fixedly arranged inside the limiting frame (472), a moving rod (474) is fixedly and throughly arranged on the reinforcing plate (473), the inner end of the moving rod (474) extends through the inner wall of the adjusting groove (471) to the inside of the rotating cylinder (44), and a connecting spring one is arranged on the inner side of the limiting frame (472), and the two ends of the connecting spring one are respectively fixedly connected with the inner wall of the limiting frame (472) and the inner wall of the adjusting groove (471).

6. A fertilizer device for corn cultivation and planting with controllable amount of fertilizer according to claim 5, characterized in that: The rotating cylinder (44) is internally provided with a threaded rod (477), the left end of the threaded rod (477) is threaded through the inner wall of the rotating cylinder (44) and extends to the outside of the left end of the rotating cylinder (44), the right end of the threaded rod (477) is provided with an extrusion head (476), the extrusion head (476) is conical, the side surface of the extrusion head (476) is rotatably connected with the right end surface of the threaded rod (477) through a bearing seat, the outside of the extrusion head (476) is provided with a stress block (475), the side surface of the stress block (475) close to the extrusion head (476) is provided as an inclined surface, and the inclined surface of the stress block (475) is in extrusion contact with the surface of the stress block (475).

7. A fertilizer device for corn cultivation and planting with controllable amount of fertilizer according to claim 6, characterized in that: The control part comprises an extrusion frame (51), the extrusion frame (51) is sleeved outside the connecting rod (43), the surface of the connecting rod (43) is in contact with the inner wall of the extrusion frame (51), the front and rear side surfaces of the extrusion frame (51) are slidably connected with the upper and lower inner walls of the fertilizer box (1), and the bottom end surface of the extrusion frame (51) is vertically fixedly provided with a connecting plate (52). The lower end surface of the connecting plate (52) is horizontally fixedly provided with a stress plate (53), and the left and right end surfaces of the stress plate (53) are slidably connected with the upper and lower inner walls of the fertilizer box (1).

8. The fertilizer device for corn cultivation and planting with controllable fertilizer amount according to claim 7, characterized in that: The material guiding part comprises a guide cylinder (54), the guide cylinder (54) is fixedly provided through the stress plate (53) in an up-down manner, the bottom end outside of the material guiding sleeve (46) is sleeved with a guide hopper (55), the bottom end of the guide hopper (55) is fixedly and penetratingly connected with the top end of the guide cylinder (54), the guide cylinder (54) is sealingly and slidingly sleeved with a fixed sleeve (56) outside, the bottom end of the fixed sleeve (56) is fixedly and penetratingly extended to below the vehicle frame (2) through the bottom surface of the fertilizer box (1) and the material guiding groove (21), the inside of the fixed sleeve (56) is vertically provided with a conical part (57), the upper and lower ends of the conical part (57) are conical, the outside of the conical part (57) is fixedly connected with a sliding ring (571) through a connecting strip, the inside surface of the fixed sleeve (56) is vertically provided with a sliding ring groove (572), the sliding ring (571) is slidingly arranged in the sliding ring groove (572), the sliding ring groove (572) is vertically provided with a second connecting spring, and the two ends of the second connecting spring are fixedly connected with the inner wall of the sliding ring groove (572) and the bottom surface of the sliding ring (571), respectively. The inside of the guide cylinder (54) is fixedly provided with a material blocking ring (58), and the inner wall of the material blocking ring (58) is provided as an inclined surface matched with the upper inclined surface of the conical part (57).

Images