Adjustable feeding roller device for chipping machine

Abstract

The utility model discloses an adjustable feeding roll device for a chipping machine, which belongs to the technical field of chipping machines, and comprises a chipping machine body, a first feeding roll and a second feeding roll, the chipping machine body is fixedly connected with a mounting rack, the mounting rack is movably connected with a connecting rack, and the connecting rack is fixedly connected with the first feeding roll and the second feeding roll. The two first feeding rollers are rotationally connected with the mounting frame, the two second feeding rollers are rotationally connected with the connecting frame, the mounting frame is fixedly connected with a supporting frame, the supporting frame is provided with an adjusting mechanism, the adjusting mechanism comprises two lead screws and a sliding block, and the lead screws are in threaded connection with the sliding block; through cooperative use of all the devices, the distance between the first feeding roller and the second feeding roller is adjusted, a lead screw in the adjusting mechanism rotates, the second feeding roller can be driven to be close to or far away from the first feeding roller, adjustment of the distance is achieved, feeding can be conducted on plates of different thicknesses, and the application range is wider.

Description

Technical Field

[0001] This utility model relates to the field of chipper technology, specifically an adjustable feed roller device for chippers. Background Technology

[0002] Drum chippers use logging residues (such as small-diameter timber and branches), wood processing residues (such as bark, strips, log cores, and waste veneer), and non-wood materials (such as bamboo, straw, wheat straw, and cotton stalks) as cutting materials. During operation, the cutting material is fed into the cutting pair where the fly knife and the bottom knife meet through the feed inlet. With the cooperation of the rotating fly knife and the fixed bottom knife, the material is cut into wood or non-wood chips of a certain size. Drum chippers can be used as raw material preparation machinery in industries such as medium-density fiberboard, particleboard, and papermaking, and can also be used as direct production equipment for finished wood chips.

[0003] Upon investigation, a Chinese utility model patent discloses an adjustable feeding roller device for a chipper (publication number: CN217225931U), which includes a chipper body, an adjustment mechanism on the front of the chipper body, and a feeding assembly inside the chipper body.

[0004] Although the aforementioned patent facilitates the adjustment of the feeding components by setting an adjustment mechanism, thereby changing the angle between the two sets of feeding components and minimizing the occurrence of feeding port blockage, the maximum thickness of the sheet material that can be conveyed is fixed regardless of how the angle of the first and second feeding rollers of this device is adjusted. It cannot be adjusted according to the thickness of the sheet material. When encountering a thick sheet material, due to insufficient spacing between the rollers, the sheet material cannot be effectively clamped and fed into the subsequent processing area, causing the entire feeding process to be interrupted, which seriously affects the equipment's adaptability to materials of different specifications and processing efficiency.

[0005] Therefore, this utility model provides an adjustable feed roller device for a chipper to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides an adjustable feed roller device for a chipper, which aims to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: It includes a chipper body, two first feeding rollers, and a second feeding roller. A mounting frame is fixedly connected to the chipper body, and a connecting frame is movably connected to the mounting frame. Both first feeding rollers are rotatably connected to the mounting frame, and both second feeding rollers are rotatably connected to the connecting frame. A support frame is fixedly connected to the mounting frame, and an adjustment mechanism is provided on the support frame. The adjustment mechanism includes two lead screws and a slider, with the lead screws and sliders threadedly connected. A linkage mechanism is provided between the first feeding rollers and the second feeding rollers. The linkage mechanism includes two first bevel gears and a second bevel gear, with the first bevel gears meshing with the second bevel gears.

[0010] As a preferred technical solution of this application, both lead screws are rotatably connected to the support frame, and a third pulley assembly is connected between the two lead screws. Fixed blocks are symmetrically fixed between the mounting frame and the support frame. An mounting block is provided above the fixed block. Both sliders are slidably connected to the support frame, and the sliders are fixedly connected to the mounting blocks. The first feeding roller and the second feeding roller are rotatably connected to the fixed block and the mounting block, respectively. Sliding grooves are symmetrically opened on the mounting frame, and the end of the second feeding roller is movably connected in the sliding groove.

[0011] As a preferred technical solution of this application, the fixing block and the mounting block are provided with cavities, and the first bevel gear and the second bevel gear are rotatably connected in the cavity. The two first bevel gears are respectively coaxially fixed with the first feeding roller and the second feeding roller.

[0012] As a preferred technical solution of this application, a cross rod is rotatably connected between the support frame and the fixing block. The end of the cross rod is fixed coaxially with the second bevel gear, and the cross rod slides coaxially with another second bevel gear.

[0013] As a preferred technical solution of this application, a first pulley assembly is connected between the two first feeding rollers, a second pulley assembly is connected between the two second feeding rollers, and a hydraulic rod is provided between the connecting frame and the support frame, with both ends of the hydraulic rod being rotatably connected to the support frame and the connecting frame, respectively.

[0014] As a preferred technical solution of this application, the top of the support frame is fixedly connected to a first motor and a second motor, and the output ends of the first motor and the second motor are respectively fixed coaxially with the lead screw and the cross rod.

[0015] (III) Beneficial Effects

[0016] The distance between the first and second feeding rollers can be adjusted by setting an adjustment mechanism. The rotation of the lead screw in the adjustment mechanism can drive the second feeding roller to move closer to or further away from the first feeding roller, thereby adjusting the distance. This allows for feeding of plates of different thicknesses, making it more widely applicable. Furthermore, by setting a linkage mechanism, the first and second feeding rollers can be driven to rotate in opposite directions. Regardless of how the distance between the first and second feeding rollers is adjusted, starting the second motor can drive the first and second feeding rollers to rotate in opposite directions through the linkage mechanism, facilitating feeding into the chipper body. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an adjustable feed roller device for a chipper;

[0018] Figure 2 This is a schematic diagram of the installation of the feed roller in an adjustable feed roller device for a chipper;

[0019] Figure 3 This is a cross-sectional view of the structure of a fixed block and a mounting block in an adjustable feed roller device for a chipper;

[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0021] In the picture:

[0022] 1. Chipper body; 2. Mounting frame; 3. Support frame; 4. First feed roller; 5. Second feed roller; 6. Lead screw; 7. Slider; 8. First motor; 9. Slide groove; 10. First pulley assembly; 11. Second pulley assembly; 12. Connecting frame; 13. Hydraulic rod; 14. Third pulley assembly; 15. Second motor; 16. Cross bar; 17. Fixing block; 18. Mounting block; 19. First bevel gear; 20. Second bevel gear. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides a feeding roller device, such as Figures 1-4As shown, the technical solution includes a chipper body 1, two first feeding rollers 4, and a second feeding roller 5. A mounting frame 2 is fixedly connected to the chipper body 1, and a connecting frame 12 is movably connected to the mounting frame 2. Both first feeding rollers 4 are rotatably connected to the mounting frame 2, and both second feeding rollers 5 are rotatably connected to the connecting frame 12. A support frame 3 is fixedly connected to the mounting frame 2, and an adjustment mechanism is provided on the support frame 3. The adjustment mechanism includes two lead screws 6 and a slider 7, with the lead screws 6 and slider 7 threadedly connected. By setting the adjustment mechanism, the distance between the first feeding rollers 4 and the second feeding rollers 5 is adjusted to achieve the desired spacing. The adjustment allows for feeding of plates of different thicknesses, making it more applicable. A linkage mechanism is provided between the first feeding roller 4 and the second feeding roller 5. The linkage mechanism includes two first bevel gears 19 and a second bevel gear 20, and the first bevel gear 19 and the second bevel gear 20 mesh. By setting the linkage mechanism, the first feeding roller 4 and the second feeding roller 5 can be driven to rotate in opposite directions. No matter how the distance between the first feeding roller 4 and the second feeding roller 5 is adjusted, the second motor 15 can drive the first feeding roller 4 and the second feeding roller 5 to rotate in opposite directions, which facilitates feeding into the chipper body 1.

[0025] Two lead screws 6 are rotatably connected to the support frame 3, and a third pulley assembly 14 is connected between the two lead screws 6. A fixing block 17 is symmetrically fixed between the mounting frame 2 and the support frame 3. An mounting block 18 is provided above the fixing block 17. Two sliders 7 are slidably connected to the support frame 3, and the sliders 7 are fixedly connected to the mounting block 18. The first feeding roller 4 and the second feeding roller 5 are rotatably connected to the fixing block 17 and the mounting block 18, respectively. The mounting frame 2 is symmetrically provided with sliding grooves 9, and the end of the second feeding roller 5 is movably connected in the sliding groove 9. A first pulley assembly 10 is connected between the two first feeding rollers 4, and a second pulley assembly 11 is connected between the two second feeding rollers 5. A hydraulic rod 13 is provided between the connecting frame 12 and the support frame 3, and the two ends of the hydraulic rod 13 are rotatably connected to the support frame 3 and the connecting frame 12, respectively.

[0026] When in use, the first motor 8 is started, and under the action of the third pulley assembly 14, the two lead screws 6 are driven to rotate synchronously, which in turn drives the two sliders 7 to slide synchronously. Moving the sliders 7 drives the mounting block 18 and the second feeding roller 5 connected to the mounting block 18 to move. At the same time, the hydraulic rod 13 follows the movement of the second feeding roller 5 to make adjustments. After the position of the second feeding roller 5 is adjusted, the angle of the second feeding roller 5 can also be adjusted by the hydraulic rod 13.

[0027] Cavities are provided in the fixing block 17 and the mounting block 18. The first bevel gear 19 and the second bevel gear 20 are rotatably connected in the cavities. The two first bevel gears 19 are coaxially fixed with the first feeding roller 4 and the second feeding roller 5, respectively. A cross rod 16 is rotatably connected between the support frame 3 and the fixing block 17. The end of the cross rod 16 is coaxially fixed with the second bevel gear 20, and the cross rod 16 slides coaxially with the other second bevel gear 20. The top of the support frame 3 is fixedly connected with the first motor 8 and the second motor 15. The output ends of the first motor 8 and the second motor 15 are coaxially fixed with the lead screw 6 and the cross rod 16, respectively.

[0028] When in use, the second motor 15 is started to drive the cross rod 16 to rotate. The rotating cross rod 16 drives the two second bevel gears 20 to rotate. The rotating second bevel gears 20, through meshing with the first bevel gear 19, drive the first feeding roller 4 and the second feeding roller 5 to rotate in opposite directions, thereby feeding the plate. It should be noted that both the first motor 8 and the second motor 15 are connected to an external power source through wires. The external power source includes a battery for providing power to the first motor 8 and the second motor 15 and a control switch for controlling their start and stop. The external power source is existing technology. The specific model and specifications of the first motor 8 and the second motor 15 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts existing technology in this field, so it will not be described in detail.

[0029] In summary: During operation, the first motor 8 is started, and under the action of the third pulley assembly 14, the two lead screws 6 rotate synchronously, which in turn drives the two sliders 7 to slide synchronously. Moving the sliders 7 drives the second feeding roller 5 to move. At the same time, the hydraulic rod 13 follows the movement of the second feeding roller 5 to make adjustments. After the position of the second feeding roller 5 is adjusted, the angle of the second feeding roller 5 can also be adjusted by the hydraulic rod 13.

[0030] The second motor 15 is started to drive the cross rod 16 to rotate. The rotating cross rod 16 drives the two second bevel gears 20 to rotate. The rotating second bevel gears 20 drive the first feeding roller 4 and the second feeding roller 5 to rotate in opposite directions through meshing with the first bevel gear 19, thereby feeding the board.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable feed roller arrangement for a chipper comprising a chipper body (1), two first feed rollers (4) and a second feed roller (5), characterised in that: A mounting frame (2) is fixedly connected to the chipper body (1), and a connecting frame (12) is movably connected to the mounting frame (2). The two first feeding rollers (4) are rotatably connected to the mounting frame (2), and the two second feeding rollers (5) are rotatably connected to the connecting frame (12). A support frame (3) is fixedly connected to the mounting frame (2), and an adjustment mechanism is provided on the support frame (3). The adjustment mechanism includes two lead screws (6) and a slider (7), and the lead screws (6) and the slider (7) are threadedly connected. A linkage mechanism is provided between the first feeding rollers (4) and the second feeding rollers (5). The linkage mechanism includes two first bevel gears (19) and a second bevel gear (20), and the first bevel gears (19) and the second bevel gears (20) mesh.

2. An adjustable feed roll assembly for a chipper as defined in claim 1, wherein: Both lead screws (6) are rotatably connected to the support frame (3), and a third pulley assembly (14) is connected between the two lead screws (6). A fixing block (17) is symmetrically fixed between the mounting frame (2) and the support frame (3). An mounting block (18) is provided above the fixing block (17). Both sliders (7) are slidably connected to the support frame (3), and the sliders (7) are fixedly connected to the mounting block (18). The first feeding roller (4) and the second feeding roller (5) are rotatably connected to the fixing block (17) and the mounting block (18) respectively. A sliding groove (9) is symmetrically opened on the mounting frame (2), and the end of the second feeding roller (5) is movably connected in the sliding groove (9).

3. An adjustable feed roll assembly for a chipper as defined in claim 2, wherein: The fixing block (17) and the mounting block (18) have cavities. The first bevel gear (19) and the second bevel gear (20) are rotatably connected in the cavity. The two first bevel gears (19) are coaxially fixed with the first feeding roller (4) and the second feeding roller (5), respectively.

4. An adjustable feed roll assembly for a chipper as defined in claim 3, wherein: A cross rod (16) is rotatably connected between the support frame (3) and the fixing block (17). The end of the cross rod (16) is coaxially fixed with the second bevel gear (20), and the cross rod (16) slides coaxially with another second bevel gear (20).

5. An adjustable feed roll apparatus for a chipper as defined in claim 1, wherein: A first pulley assembly (10) is connected between the two first feeding rollers (4), and a second pulley assembly (11) is connected between the two second feeding rollers (5). A hydraulic rod (13) is provided between the connecting frame (12) and the support frame (3), and the two ends of the hydraulic rod (13) are rotatably connected to the support frame (3) and the connecting frame (12) respectively.

6. An adjustable feed roll assembly for a chipper as defined in claim 4, wherein: The top of the support frame (3) is fixedly connected to a first motor (8) and a second motor (15), and the output ends of the first motor (8) and the second motor (15) are respectively fixed coaxially with the lead screw (6) and the cross rod (16).

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