An easily adjustable ring die pellet mill

Abstract

This application relates to an easily adjustable ring die pellet mill, belonging to the field of pellet mills. It includes a frame and a ring die, the ring die being rotatably connected to the frame. A support base is provided on the frame, and two control shafts are arranged opposite each other on the support base. A pressure roller is rotatably connected to each control shaft, and an adjusting plate is mounted on the control shaft. The rotation axis of the pressure roller is parallel to the rotation axis of the adjusting plate. An adjusting seat is provided on the support base, and two adjusting rods are on the adjusting seat. Both adjusting rods are rotatably connected to corresponding adjusting plates. The adjusting seat is provided with an adjusting assembly for adjusting the adjusting rods. The operator uses the adjusting assembly to control the movement of the adjusting rods, which in turn drives the control shaft to rotate. This causes the control shaft to move the corresponding pressure roller toward or away from the ring die, thereby changing the distance between the pressure roller and the ring die. This reduces the steps required for the operator to adjust the distance between the ring die and the pressure roller, and speeds up the adjustment process.

Description

Technical Field

[0001] This application relates to the field of pellet mills, and more particularly to an easily adjustable ring die pellet mill. Background Technology

[0002] Ring die pellet mills are a type of feed pelleting equipment. They are feed processing machines that directly compress crushed materials such as corn, soybean meal, straw, grass, and rice husks into pellets.

[0003] In related technologies, a ring die pellet mill mainly includes a machine body and a ring die, with the ring die rotatably connected within the machine body. A support base is installed within the machine body, and two opposing pressure rollers are rotatably connected to the support base. An adjusting plate is mounted on the rotating shaft of each pressure roller, eccentrically positioned on the shaft. The support base is equipped with an adjusting assembly for controlling the rotation of the adjusting plate. Because the adjusting plate is eccentric relative to the pressure rollers, its rotation adjusts the position between the pressure rollers and the ring die. There are two sets of adjusting assemblies, each corresponding to one adjusting plate. Each adjusting assembly includes two opposing adjusting rods, both vertically positioned on the support base and threadedly connected to it. The adjusting plate is located between the two adjusting rods, with both rods abutting against the adjusting plate. Each adjusting rod has a nut. When it is necessary to adjust the position between the pressure roller and the ring die, the nuts on the two adjusting rods need to be loosened, and then the two adjusting rods are rotated respectively. At this time, the adjusting rods can adjust the position of the adjusting plate. After the position of the adjusting plate is adjusted, the nuts are rotated again to make the nuts press against the support seat, so as to limit the position of the adjusting rod, that is, limit the position of the pressure roller.

[0004] When it is necessary to change the distance between the pressure roller and the ring die, the operator first loosens two nuts and then rotates two adjusting rods simultaneously to adjust the distance between the pressure roller and the ring die. The whole process is rather cumbersome and needs to be improved. Utility Model Content

[0005] To address the aforementioned issues, this application provides an easily adjustable ring die pellet mill.

[0006] This application provides an easily adjustable ring die pellet mill, which adopts the following technical solution: An easily adjustable ring die pellet mill includes a frame and a ring die, the ring die being rotatably connected to the frame. A support seat is provided on the frame, the support seat being disposed inside the ring die. Two control shafts are provided on the support seat, each of the two opposing control shafts having a pressure roller rotatably connected to it. An adjusting plate is provided on each of the two opposing control shafts, the adjusting plate being rotatably connected to the support seat, and the rotation axis of the adjusting plate being parallel to the rotation axis of the pressure roller. The support base is provided with an adjustment seat, and the adjustment seat is provided with two adjusting rods arranged opposite each other. The two adjusting rods are slidably connected to the adjustment seat, and the ends of the two adjusting rods away from the adjustment seat are rotatably connected to the corresponding adjusting plates. The adjustment seat is provided with an adjustment component for adjusting the position of the adjusting rods.

[0007] By adopting the above technical solution, when it is necessary to adjust the distance between the pressure roller and the ring die, the operator uses the adjustment assembly to adjust the position of the adjustment rod. The adjustment rod drives the corresponding adjustment plate to rotate. Since the rotation axis of the adjustment plate is parallel to the rotation axis of the pressure roller, that is, the adjustment plate is eccentrically set relative to the control shaft, the adjustment plate can then drive the control shaft to move towards or away from the ring die. The control shaft then drives the corresponding pressure roller to move towards or away from the ring die, thereby completing the adjustment of the distance between the pressure roller and the ring die. The adjustment assembly reduces the number of steps required for the operator to adjust the distance between the pressure roller and the ring die, thus improving the efficiency of the operator in adjusting the distance between the pressure roller and the ring die.

[0008] Preferably, the adjusting assembly includes a first nut and a second nut. Each of the two adjusting rods arranged opposite to each other is threaded with a first nut and a second nut. Both the first nut and the second nut abut against the adjusting seat. The first nut is located at the end of the adjusting rod away from the adjusting plate, and the second nut is located at the end of the adjusting rod close to the adjusting plate.

[0009] By adopting the above technical solution, when it is necessary to control the adjusting rod to move away from the adjusting seat, the worker rotates the first nut, which drives the adjusting rod to move. The moving adjusting rod then causes the second nut to separate from the adjusting seat. The worker then rotates the second nut in the opposite direction, causing it to re-tighten against the adjusting seat, thus limiting the position of the adjusting rod. When it is necessary to control the adjusting rod to move closer to the adjusting seat, the worker rotates the second nut, which drives the adjusting rod to move. The moving adjusting rod then causes the first nut to separate from the adjusting seat. The worker then rotates the first nut in the opposite direction, causing it to re-tighten against the adjusting seat, thus limiting the position of the adjusting rod. During the movement of the adjusting rod, it sequentially drives the adjusting plate and the control shaft to rotate, thereby changing the position between the pressure roller and the ring die. Under the action of the first and second nuts, rotating one adjusting rod and then rotating the other locking adjusting rod in the opposite direction achieves the function of adjusting the pressure roller position, reducing the steps required for the worker to adjust the pressure roller position and thus improving the efficiency of the worker in adjusting the pressure roller position.

[0010] Preferably, the adjusting rod is connected to the corresponding adjusting plate through a connecting component. The connecting component includes a connecting shaft, a fixing column, and a locking piece. A connecting hole is formed in the adjusting plate. The connecting shaft abuts against the inner wall of the connecting hole. The adjusting rod is rotatably connected to the connecting shaft. A fixing hole is formed in the adjusting plate. The fixing column is arranged in the fixing hole. A让位孔 (releasing hole) is formed in the locking piece. The fixing column abuts against the inner wall of the releasing hole. An arc-shaped groove is formed on one side of the locking piece close to the connecting shaft. The connecting shaft abuts against the inner wall of the arc-shaped groove. A limiting plate is arranged at one end of the connecting shaft away from the adjusting plate. The limiting plate abuts against the locking piece.

[0011] By adopting the above technical solution, when it is necessary to connect the adjusting rod and the corresponding adjusting plate, the operator first places the locking piece on the adjusting plate, then sequentially passes the fixing column through the releasing hole and the fixing hole, and then inserts the connecting shaft into the connecting hole. At the same time, the connecting shaft abuts against the inner wall of the arc-shaped groove. When the limiting plate abuts tightly against the locking piece, the fixing of the connecting shaft is completed. At this time, the operator can connect the adjusting rod to the connecting shaft, thus providing convenience for the operator to connect the adjusting rod and the corresponding adjusting plate.

[0012] Preferably, the connecting shaft includes a connecting column and a clamping column. The connecting column is connected to the clamping column. The limiting plate is arranged at one end of the clamping column away from the connecting column. The adjusting rod is rotatably connected to the corresponding connecting column. The diameters of both the connecting column and the limiting plate are d1, and the diameter of the clamping column is d2. d2 < d1. The limiting column abuts against the inner wall of the arc-shaped groove.

[0013] By adopting the above technical solution, when it is necessary to install the connecting shaft onto the adjusting plate, the operator clamps the locking piece between the limiting plate and the connecting column, making the clamping column abut tightly against the inner wall of the arc-shaped groove. Then the operator passes the fixing column through the releasing hole, making the fixing column abut against the locking piece. At this time, the operator can insert the connecting column into the connecting hole and insert the fixing column into the fixing hole simultaneously, thus completing the fixing of the connecting shaft. Since the diameter of the clamping column is smaller than the diameters of the limiting plate and the connecting column, both the limiting plate and the connecting column provide limits for the locking piece, so that the locking piece can limit the connecting column more stably, thereby improving the connection stability between the connecting column and the adjusting plate.

[0014] Preferably, a feeding pipe is arranged on the machine frame. A end cover is rotatably connected to the machine frame. The end cover is arranged opposite to the support seat. A feeding port communicating with the feeding pipe is formed in the end cover. The end cover is connected to the machine frame through a lock.

[0015] By adopting the above technical solution, when materials need to be processed, the end cover is rotated so that it covers the outside of the ring die. Then, the end cover is fixed to the frame using a locking buckle. The material is then put into the feeding pipe, which transports the material from the feed port to the ring die so that the pressure roller can process the material. At this time, the end cover is not easy to separate from the frame under the action of the locking buckle.

[0016] Preferably, the end cap includes a feeding section and a protective section. The feeding section is connected to the feeding pipe, and the protective section covers the outside of the ring die. The feeding section is tapered away from the frame.

[0017] By adopting the above technical solution, the gradually narrowing feed section guides the material, facilitating its stable movement between the pressure roller and the ring die, and reducing the possibility of material accumulation at the end cap. Simultaneously, the gradually narrowing feed section shifts the center of gravity of the end cap to the protective section, reducing the likelihood of the pellet mill tipping over during the material reduction process.

[0018] Preferably, the adjusting seat has an adjusting cavity, and the adjusting seat has a plurality of adjusting holes communicating with the adjusting cavity. Each adjusting rod corresponds to an adjusting hole, and the adjusting rod is slidably connected in the corresponding adjusting hole. The inner wall of the adjusting hole has a limiting hole, and the adjusting rod has a limiting strip, which is slidably connected in the limiting hole. The adjustment assembly further includes a motor, a first gear, and a second gear. The motor is mounted on the adjustment seat, the first gear is coaxially mounted on the motor, and the second gear is rotatably connected in the adjustment cavity. The second gear extends out of the adjustment seat and meshes with the first gear. Two opposing control rods are rotatably connected in the adjustment cavity, each control rod corresponding to an adjustment rod. The control rods are threadedly connected to their corresponding adjustment rods. A control gear is coaxially mounted on each control rod, and the second gear is positioned between the two opposing control gears. Both opposing control gears mesh with the second gear.

[0019] By adopting the above technical solution, when it is necessary to synchronously adjust the position between the two pressure rollers and the ring die, the operator starts the motor. The motor drives the first gear to rotate, which in turn drives the second gear. The second gear drives two control gears to rotate, which in turn drive the corresponding control rods to rotate. Under the limiting and guiding action of the limit strips and limit holes, the rotation of the control rods drives the adjusting rods to move. The adjusting rods then sequentially drive the corresponding adjusting plates and control shafts to rotate, thereby changing the position of the pressure rollers. This achieves the function of synchronously controlling the synchronous movement of the two adjusting rods, thus further improving the efficiency of workers in adjusting the position of the pressure rollers.

[0020] Preferably, the outer side of the motor is provided with a protective cover, which is connected to the adjustment seat.

[0021] By adopting the above technical solution, the protective cover provides protection for the motor, reducing the possibility of materials damaging the motor, so that the motor can control the worm gear rotation more stably.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting the first nut and the second nut, rotating the first nut and the second nut adjusts the position of the adjusting rod. The adjusting rod controls the rotation of the adjusting plate and the control shaft in sequence to change the position of the pressure roller. Then, the first nut or the second nut is reversed to limit the position of the adjusting rod and fix the position of the pressure roller. This reduces the number of steps for the operator to adjust the distance between the pressure roller and the ring die and speeds up the operator's adjustment of the distance between the pressure roller and the ring die. 2. By setting a gradually narrowing feed section, the material is guided, which facilitates the material movement between the pressure roller and the ring die, and reduces the phenomenon of material accumulation in the end cap. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2 This is a structural schematic diagram of Embodiment 1 of this application, illustrating the positional relationship between the pressure roller and the ring die; Figure 3 This is a structural schematic diagram of Embodiment 1 of this application, illustrating the positional relationship between the adjusting plate and the control shaft; Figure 4 This is a structural schematic diagram of Embodiment 1 of this application, illustrating the positional relationship between the adjusting rod and the connecting component; Figure 5 yes Figure 4 Enlarged structural diagram of section A in the middle; Figure 6 This is a schematic diagram of the structure of Embodiment 2 of this application, illustrating the positional relationship between the pressure roller and the ring die; Figure 7 yes Figure 6 A magnified structural diagram of section B.

[0024] Explanation of reference numerals in the attached drawings: 1. Frame; 11. End cover; 111. Feed inlet; 112. Feed section; 113. Protective section; 12. Lock; 13. Feeding pipe; 2. Ring die; 3. Support base; 31. Control shaft; 32. Pressure roller; 33. Adjusting plate; 331. Connecting hole; 332. Fixing hole; 4. Adjusting seat; 41. Adjusting rod; 411. Limiting strip; 42. Adjusting cavity; 421. Control rod; 422. Control... 43. Gear; 431. Adjustment hole; 5. Adjustment assembly; 51. First nut; 52. Second nut; 53. Worm gear; 54. Motor; 55. First gear; 56. Second gear; 6. Connecting assembly; 61. Connecting shaft; 611. Limiting plate; 612. Connecting post; 613. Snap-fit ​​post; 62. Fixing post; 63. Locking plate; 631. Clearance hole; 632. Arc groove; 7. Protective cover. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0026] Example 1: Embodiment 1 of this application discloses an easily adjustable ring die pellet mill. (Refer to...) Figure 1 and Figure 2 An easily adjustable ring die pellet mill includes a frame 1 and a ring die 2. The ring die 2 is rotatably connected to the frame 1. An end cap 11 is rotatably connected to the frame 1 and communicates with the frame 1 via a latch 12. A support base 3 is fixed on the frame 1 and is located inside the ring die 2. Two opposing control shafts 31 are mounted on the support base 3, and pressure rollers 32 are rotatably connected to the control shafts 31. Adjusting plates 33 are rotatably connected to both control shafts 31, and the rotation axis of the adjusting plates 33 is parallel to the rotation axis of the pressure rollers 32. An adjusting seat 4 is fixed on the support base 3, and two opposing adjusting rods 41 are threadedly connected to the adjusting seat 4. Each adjusting rod 41 corresponds to an adjusting plate 33, and the end of each adjusting rod 41 away from the adjusting seat 4 is rotatably connected to the corresponding adjusting plate 33. An adjusting assembly 5 for adjusting the position of the adjusting rods 41 is provided on the support base 3.

[0027] When it is necessary to adjust the distance between the pressure roller 32 and the ring die 2, the operator activates the adjustment assembly 5. The adjustment assembly 5 drives the adjustment rod 41 to move toward or towards the adjustment seat 4. The adjustment rod 41 then drives the corresponding adjustment plate 33 to rotate. Since the rotation axis of the adjustment plate 33 is parallel to the rotation axis of the pressure roller 32, the rotation of the adjustment plate 33 drives the control shaft 31 to rotate. The control shaft 31 then drives the pressure roller 32 to move toward or away from the ring die 2, thereby changing the distance between the pressure roller 32 and the ring die 2. At this time, under the action of the adjustment assembly 5, the number of steps required for the operator to change the distance between the pressure roller 32 and the ring die 2 is reduced, thus speeding up the operator's adjustment of the distance between the ring die 2 and the pressure roller 32.

[0028] Reference Figure 2 and Figure 3 The adjusting assembly 5 includes a first nut 51 and a second nut 52, and both adjusting rods 41 are threaded with a first nut 51 and a second nut 52. The first nut 51 is located at the end of the adjusting rod 41 near the corresponding adjusting plate 33, and the second nut 52 is located at the end of the adjusting rod 41 away from the corresponding adjusting plate 33.

[0029] Since the rotation axis of the adjusting plate is parallel to the rotation axis of the pressure roller, the adjusting plate is eccentrically set relative to the control shaft.

[0030] When it is necessary to change the distance between the pressure roller 32 and the ring die 2, the operator rotates the first nut 51 or the second nut 52. Since the adjusting rod 41 is rotatably connected to the adjusting plate 33, the connection between the adjusting rod 41 and the adjusting plate 33 limits the axial rotation of the adjusting rod 41. The rotation of the first nut 51 drives the adjusting rod 41 to move away from the adjusting seat 4. The adjusting rod 41 then drives the adjusting plate 33 and the control shaft 31 to rotate in sequence, thereby adjusting the distance between the pressure roller 32 and the ring die 2. When the adjusting rod 41 moves away from the adjusting seat 4, the adjusting rod 41 drives the second nut 52 to separate from the adjusting seat 4. At this time, the operator reverses the second nut 52, so that the second nut 52 and the adjusting seat 4 are tightened again. At this time, the second nut 52 can limit the position of the adjusting rod 41 and the first nut 51, thereby completing the adjustment of the position of the pressure roller 32.

[0031] When the second nut 52 rotates, it drives the adjusting rod 41 to move closer to the adjusting seat 4. The adjusting rod 41 then drives the adjusting plate 33 and the control shaft 31 to rotate in sequence, thereby adjusting the distance between the pressure roller 32 and the ring die 2. As the adjusting rod 41 moves closer to the adjusting seat 4, it causes the first nut 51 to separate from the adjusting seat 4. The worker then reverses the first nut 51, causing it to re-tighten against the adjusting seat 4. At this point, the first nut 51 can limit the position of the adjusting rod 41 and the first nut 52, thus completing the adjustment of the pressure roller 32 position. This reduces the steps required for the worker to adjust the pressure roller 32 position, thereby improving the efficiency of the worker's adjustment of the pressure roller 32 position.

[0032] Reference Figure 4 and Figure 5 To facilitate the connection between the adjusting rod 41 and the adjusting plate 33, the adjusting rod 41 is connected to the corresponding adjusting plate 33 via a connecting assembly 6. The connecting assembly 6 includes a connecting shaft 61, a fixing post 62, and a locking plate 63. The adjusting plate 33 has a connecting hole 331, and the connecting shaft 61 is disposed within the connecting hole 331 and abuts against the inner wall of the connecting hole 331. The adjusting rod 41 is rotatably connected to the connecting shaft 61. The adjusting plate 33 has a fixing hole 332, and the fixing post 62 is disposed within the fixing hole 332 and abuts against the inner wall of the fixing hole 332. The locking plate 63 has a clearance hole 631, and the fixing post 62 abuts against the inner wall of the clearance hole 631. A limit plate 611 is coaxially fixed to the connecting shaft 61, and the limit plate 611 abuts against the locking plate 63.

[0033] When it is necessary to fix the connecting shaft 61 to the adjusting plate 33, the operator first places the locking plate 63 on the fixing seat, then inserts the fixing post 62 into the clearance hole 631 and the fixing hole 332 in sequence, and then inserts the connecting shaft 61 into the connecting hole 331. When the limiting plate 611 and the locking plate 63 are pressed together, the fixing of the connecting shaft 61 is completed. At this time, the operator can connect the adjusting rod 41 to the connecting shaft 61 so that the adjusting rod 41 can subsequently control the rotation of the corresponding adjusting plate 33.

[0034] Reference Figure 4 and Figure 5 In order to improve the limiting ability of the locking plate 63 to the connecting shaft 61, an arc-shaped groove 632 is provided on the side of the locking plate 63 near the limiting shaft. The connecting shaft 61 abuts against the inner wall of the arc-shaped groove 632. At this time, under the action of the arc-shaped groove 632, the contact area between the connecting shaft 61 and the locking plate 63 is increased, thereby improving the limiting ability of the locking plate 63 to the connecting shaft 61.

[0035] Reference Figure 4 and Figure 5The connecting shaft 61 includes a connecting post 612 and a locking post 613, which are coaxially connected. A limiting plate 611 is coaxially disposed at the end of the locking post 613 away from the connecting post 612. The adjusting rod 41 is rotatably connected to the corresponding connecting post 612, and the diameters of the connecting post 612 and the limiting plate 611 are d1, while the diameter of the locking post 613 is d2, where d1 > d2. The locking post 613 abuts against the inner wall of the arc-shaped groove 632, and both the limiting plate 611 and the connecting post 612 abut against the locking piece 63.

[0036] At this time, since the diameter of the locking post 613 is smaller than the diameter of the connecting post 612 and the limiting plate 611, the contact area between the locking piece 63 and the connecting shaft 61 is further increased, thereby further improving the limiting ability of the locking piece 63 on the connecting shaft 61 and reducing the possibility of the connecting shaft 61 separating from the adjusting plate 33.

[0037] Reference Figure 1 To facilitate the material conveying between the pressure roller 32 and the ring die 2, a feeding pipe 13 is fixed on the frame 1. An inlet 111 connected to the feeding pipe 13 is provided on the end cover 11, and an auger (not shown in the figure) is installed in the feeding pipe 13. The end cover 11 includes a feeding section 112 and a protective section 113. The feeding section 112 is connected to the protective section 113 and is connected to the feeding pipe. The protective section 113 covers the outside of the ring die 2 and is rotatably connected to the frame 1. The feeding section 112 is tapered away from the frame 1.

[0038] When material processing is required, the operator places the material into the feed pipe. The auger in the feed pipe then conveys the material through the feed inlet 111 to the space between the pressure roller 32 and the ring die 2, allowing the pressure roller 32 and the ring die 2 to process the material. At this time, the gradually narrowing feed section 112 provides guidance for the material, facilitating its stable movement between the pressure roller 32 and the ring die 2 and reducing material accumulation at the end cover 11. Simultaneously, it shifts the center of gravity of the end cover 11 to the protective section 113, reducing the likelihood of the pellet mill tipping over during material conveying.

[0039] The implementation principle of Embodiment 1 of this application is as follows: When it is necessary to adjust the distance between the pressure roller 32 and the ring die 2, the operator rotates the first nut 51 or the second nut 52 to control the movement of the adjusting rod 41. The adjusting rod 41 then sequentially drives the adjusting plate 33 and the control shaft 31 to rotate, thereby adjusting the position between the pressure roller 32 and the ring die 2. When the adjusting rod 41 moves, it causes the first nut 51 or the second nut 52 to separate from the adjusting seat 4. The worker then reverses the first nut 51 or the second nut 52, so that the first nut 51 or the second nut 52 is pressed against the adjusting seat 4 again, thereby limiting the position of the adjusting rod 41 and completing the adjustment of the position of the pressure roller 32. This reduces the steps required for the worker to adjust the pressure roller 32, thereby improving the efficiency of the worker in adjusting the position of the pressure roller 32.

[0040] Example 2: Reference Figure 6 and Figure 7 The difference from Embodiment 1 of this application is that: the adjusting seat 4 has an adjusting cavity 42, and the adjusting seat 4 has a plurality of adjusting holes 43 communicating with the adjusting cavity 42. Each adjusting rod 41 corresponds to an adjusting hole 43 and is slidably connected to the inner wall of the adjusting hole 43. The inner wall of the adjusting hole 43 has a limiting hole 431, and the adjusting rod 41 is provided with a limiting strip 411, which is slidably connected in the limiting hole 431.

[0041] The adjustment assembly 5 also includes a motor 54, a first gear 55, and a second gear 56. The motor 54 is fixed on the adjustment seat 4. The output end of the first gear 55 is coaxially mounted on the output end of the motor 54. The second gear 56 is rotatably connected in the adjustment cavity 42 and extends out of the adjustment seat 4 to mesh with the first gear 55. Two control rods 421 are rotatably connected in the adjustment cavity 42. Each control rod 421 corresponds to an adjustment rod 41, and the control rods 421 are threadedly connected to their respective adjustment rods 41. A control gear 422 is coaxially connected to each control rod 421. The second gear 56 is located between the two control gears 422, and both control gears 422 mesh with the second gear 56.

[0042] When it is necessary to synchronously change the distance between the two pressure rollers 32 and the ring die 2, the operator starts the motor 54. The motor 54 drives the first gear 55 and the second gear 56 to rotate in sequence. The second gear 56 then drives the two adjacent control gears 422 to rotate. The control gears 422 then drive the corresponding control rod 421 to rotate. At this time, under the limiting and guiding action of the limiting strip 411 and the limiting hole 431, the control rod 421 can drive the corresponding adjusting rod 41 to move. The adjusting rod 41 then drives the corresponding adjusting plate 33 and the control shaft 31 to rotate in sequence, realizing the function of synchronously controlling the movement of the two pressure rollers 32, thereby further improving the steps for workers to adjust the position of the pressure rollers 32.

[0043] Reference Figure 6 To reduce the impact of materials on motor 54, a protective cover 7 is provided on the outside of motor 54, and the protective cover 7 is fixed to the adjusting seat 4. When the material moves between the pressure roller 32 and the ring die 2, the protective cover 7 blocks the material, making it less likely for the material to come into contact with the output end of motor 54, thereby reducing the possibility of the output end of motor 54 getting stuck.

[0044] The implementation principle of Embodiment 2 of this application is as follows: The operator starts the motor 54, which sequentially drives the first gear 55 and the second gear 56 to rotate. The second gear 56 drives the two adjacent control gears 422 to rotate, and the control gears 422 drive the corresponding control rod 421 to rotate. Under the limiting action of the limiting strip 411 and the limiting hole 431, the control rod 421 drives the corresponding adjusting rod 41 to rotate, and the adjusting rod 41 drives the corresponding adjusting plate 33 and the control shaft 31 to rotate, thereby realizing the function of synchronously adjusting the distance between the two pressure rollers 32 and the ring die 2, thus further accelerating the speed at which the operator adjusts the distance between the pressure rollers 32 and the ring die 2.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A ring die pellet mill that is easy to adjust, characterized in that: The device includes a frame (1) and a ring die (2). The ring die (2) is rotatably connected to the frame (1). The frame (1) is provided with a support seat (3). The support seat (3) is located inside the ring die (2). The support seat (3) is provided with two control shafts (31) arranged opposite to each other. Each of the two control shafts (31) is rotatably connected with a pressure roller (32). Each of the two control shafts (31) is provided with an adjusting plate (33). The adjusting plate (33) is rotatably connected to the support seat (3). The rotation axis of the adjusting plate (33) is parallel to the rotation axis of the pressure roller (32). The support base (3) is provided with an adjustment base (4), and the adjustment base (4) is provided with two opposing adjustment rods (41). The two opposing adjustment rods (41) are slidably connected to the adjustment base (4), and the ends of the two opposing adjustment rods (41) away from the adjustment base (4) are rotatably connected to the corresponding adjustment plate (33). The adjustment base (4) is provided with an adjustment component (5) for adjusting the position of the adjustment rods (41).

2. The easily adjustable ring die pellet mill according to claim 1, characterized in that: The adjustment assembly (5) includes a first nut (51) and a second nut (52). A first nut (51) and a second nut (52) are threaded onto each of the two opposing adjustment rods (41). The first nut (51) and the second nut (52) abut against the adjustment seat (4). The first nut (51) is located at the end of the adjustment rod (41) away from the adjustment plate (33), and the second nut (52) is located at the end of the adjustment rod (41) close to the adjustment plate (33).

3. The easily adjustable ring die pellet mill according to claim 1, characterized in that: The adjusting rod (41) is connected to the corresponding adjusting plate (33) via a connecting assembly (6). The connecting assembly (6) includes a connecting shaft (61), a fixing post (62), and a locking plate (63). The adjusting plate (33) has a connecting hole (331). The connecting shaft (61) abuts against the inner wall of the connecting hole (331). The adjusting rod (41) is rotatably connected to the connecting shaft (61). The adjusting plate (33) has a fixing hole (332). The fixing post (62) The locking plate (63) is provided with a clearance hole (631) in the fixing hole (332), the fixing post (62) abuts against the inner wall of the clearance hole (631), the locking plate (63) is provided with an arc groove (632) on the side near the connecting shaft (61), the connecting shaft (61) abuts against the inner wall of the arc groove (632), and a limiting plate (611) is provided at the end of the connecting shaft (61) away from the adjusting plate (33), the limiting plate (611) abuts against the locking plate (63).

4. The easily adjustable ring die pellet mill according to claim 3, characterized in that: The connecting shaft (61) includes a connecting column (612) and a clamping column (613). The connecting column (612) is connected to the clamping column (613). The limiting plate (611) is arranged at one end of the clamping column (613) away from the connecting column (612). The adjusting rod (41) is rotatably connected to the corresponding connecting column (612). The diameters of the connecting column (612) and the limiting plate (611) are both d1, and the diameter of the clamping column (613) is d2, where d2 < d1. The limiting column abuts against the inner wall of the arc-shaped groove (632).

5. The easily adjustable ring die pellet mill according to claim 1, characterized in that: A feeding pipe (13) is provided on the frame (1). A end cover (11) is rotatably connected to the frame (1). The end cover (11) is arranged opposite to the support seat (3). A feeding port (111) communicating with the feeding pipe (13) is formed on the end cover (11). The end cover (11) is connected to the frame (1) through a lock (12).

6. The easily adjustable ring die pellet mill according to claim 5, characterized in that: The end cover (11) includes a feeding part (112) and a protection part (113). The feeding part (112) is connected to the feeding pipe (13). The protection part (113) covers the outside of the ring die (2). The feeding part (112) is tapered in a direction away from the frame (1).

7. The easily adjustable ring die pellet mill according to claim 1, characterized in that: An adjusting cavity (42) is formed in the adjusting seat (4). A plurality of adjusting holes (43) communicating with the adjusting cavity (42) are formed on the adjusting seat (4). Each adjusting rod (41) corresponds to an adjusting hole (43). The adjusting rod (41) is slidably connected in the corresponding adjusting hole (43). A limiting hole (431) is formed on the inner wall of the adjusting hole (43). A limiting strip (411) is arranged on the adjusting rod (41). The limiting strip (411) is slidably connected in the limiting hole (431).

8. The easily adjustable ring die pellet mill according to claim 7, characterized in that: The adjusting assembly (5) further includes a motor (54), a first gear (55), and a second gear (56). The motor (54) is arranged on the adjusting seat (4). The first gear (55) is coaxially arranged on the motor (54). The second gear (56) is rotatably connected in the adjusting cavity (42). The second gear (56) extends out of the adjusting seat (4) and meshes with the first gear (55). Two opposite control rods (421) are rotatably connected in the adjusting cavity (42). Each control rod (421) corresponds to an adjusting rod (41). The control rod (421) is threadedly connected to the corresponding adjusting rod (41). A control gear (422) is coaxially arranged on the control rod (421). The second gear (56) is arranged between two opposite control gears (422). Two opposite control gears (422) are both meshed with the second gear (56). A protective cover (7) is arranged outside the motor (54). The protective cover (7) is connected to the adjusting seat (4).

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