A bearing block for eccentrically adjustable roller knives

Abstract

The application discloses a bearing seat of an eccentric adjusting roll cutter, which comprises two oppositely arranged first seat bodies and second seat bodies, an adjusting hole is formed on the side of the first seat body away from the second seat body, a driving shaft is coaxially arranged in the adjusting hole, a first mounting hole is formed on the driving shaft and is arranged in a non-coaxial manner with the driving shaft, a second mounting hole coaxial with the first mounting hole is formed on the side of the second seat body facing the first seat body, a roll cutter is arranged between the first mounting hole and the second mounting hole, an operation groove is formed on the side of the first seat body away from the second seat body and is communicated with the adjusting hole, a driving block connected with the driving shaft is arranged in the operation groove, and an adjusting rod for adjusting the driving block in a direction perpendicular to the axial direction of the driving shaft is arranged on the side wall of the first seat body; the parallelism of the roll cutter and the bottom roll in the axial direction can be directly and accurately fine adjusted by horizontally pushing the eccentric driving shaft, the installation and manufacturing errors can be compensated, the equipment does not need to be disassembled, and the adjusting efficiency and accuracy are improved.

Description

Technical Field

[0001] This application relates to the technical field of machined parts, and in particular to a bearing housing for an eccentric adjusting roller cutter. Background Technology

[0002] In the prior art, the roller cutter is usually installed by using a fixed bearing housing and a standard bearing. The roller cutter is installed in the bearing housing through the bearing and forms a pressing or cutting relationship with the bottom roller below. This structure can meet the basic usage requirements in general applications where high precision is not required.

[0003] However, as customers' requirements for processing accuracy continue to increase, the existing structure has gradually revealed the problem of insufficient centering accuracy. Due to the unavoidable manufacturing errors and installation gaps between the bearing housing and the bearing during processing and assembly, after the roller cutter is assembled into the bearing housing, it is difficult for the roller cutter and the bottom roller to always maintain an ideal parallel centering state. The slight skew or center height deviation between the two will directly affect the cutting or imprinting quality.

[0004] In addition, the existing roller cutter bearing housings lack an effective adjustment mechanism. Once a misalignment occurs, it is usually necessary to stop the machine, disassemble and readjust, which is not only cumbersome to operate, but also seriously affects the production efficiency and stability of the equipment. Summary of the Invention

[0005] To improve the positional accuracy between the roller cutter and the bottom roller, a bearing housing for an eccentrically adjustable roller cutter is provided, which can compensate for centering errors in real time.

[0006] The above-mentioned objective of this application is achieved through the following technical solution: A bearing housing for an eccentric adjusting roller cutter includes two opposing first and second housings. An adjusting hole is formed on the side of the first housing facing away from the second housing. A drive shaft is coaxially arranged within the adjusting hole. A first mounting hole, not coaxial with the drive shaft, is formed on the drive shaft. A second mounting hole, coaxial with the first mounting hole, is formed on the side of the second housing facing the first housing. The first and second mounting holes are used to fix the roller cutter. An operating groove, communicating with the adjusting hole, is also formed on the side of the first housing facing away from the second housing. A drive block connected to the drive shaft is provided within the operating groove. An adjusting rod, for adjusting the drive block in a direction perpendicular to the axial direction of the drive shaft, is provided on the side wall of the first housing.

[0007] By adopting the above technical solution, the parallelism between the roller cutter and the bottom roller in the axial direction can be directly and precisely finely adjusted by pushing the eccentrically set drive shaft laterally, compensating for installation and manufacturing errors, without disassembling the equipment, which greatly improves the adjustment efficiency and accuracy; by embedding the drive shaft, drive block and adjusting rod in the bearing housing body, a fully functional modular unit is formed, saving installation space and simplifying the external structure.

[0008] Preferably, threaded holes are formed on both sides of the first base body along the direction perpendicular to the drive shaft axis, and adjusting rods are threaded into the two threaded holes respectively, and the adjusting rods are aligned with the drive block along their own axial direction.

[0009] By adopting the above technical solution, the drive block is pushed and adjusted from both sides, eliminating the backlash that may exist in unilateral adjustment, making the adjustment process smoother and more precise. The force on both sides ensures that the drive shaft will not shift due to vibration or load after adjustment, and enhances the rigidity and stability of the entire bearing housing in the working state.

[0010] Preferably, the adjusting rods on both sides of the first base are aligned axially along the threaded holes.

[0011] By adopting the above technical solution, it is ensured that the force vectors of the two adjusting rods on the driving block are on the same straight line, avoiding the additional torque caused by the deviation of the force. This ensures that the driving block and the driving shaft connected to it only have a translational tendency during the adjustment process, eliminating torsional deformation and jamming during the adjustment process, and improving the linearity and smoothness of the adjustment.

[0012] Preferably, the distance between the center of the first mounting hole and the top outer wall of the drive shaft is less than the distance between the center of the first mounting hole and the bottom of the drive shaft.

[0013] By adopting the above technical solution, the asymmetrical layout of the first mounting hole on the cross-section of the drive shaft makes the cross-section of the drive shaft essentially form a lever with unequal arms. When the adjusting rod adjusts the drive shaft, this lever structure can efficiently amplify and convert the small horizontal input displacement into the offset of the roller cutter in the vertical direction. By concentrating the limited installation space and adjustment stroke in the vertical direction, which is the most important for solving parallelism deviation, the dispersion of adjustment force and the waste of stroke are avoided, making the correction of the core deviation more direct and effective.

[0014] Preferably, the diameter of the axial section of the first mounting hole is smaller than the diameter of the axial section of the drive shaft.

[0015] By adopting the above technical solution, the first mounting hole of the bearing is integrated inside the drive shaft. By ensuring that the shaft diameter is smaller than the drive shaft diameter, the drive shaft has sufficient thickness to provide sufficient mechanical strength and rigidity. This avoids bending or torsional deformation of the drive shaft when subjected to the working load and adjustment force of the roller cutter over a long period of time, thereby ensuring the long-term stability of the adjustment accuracy.

[0016] Preferably, the drive shaft has a clearance groove for mounting the drive block, and the side of the drive block facing away from the drive shaft is flush with the outer wall of the first housing.

[0017] By adopting the above technical solution, the drive block does not protrude from the outer surface of the bearing housing, making the overall structure of the bearing housing neat and avoiding interference with surrounding parts in a narrow installation space, thus reducing the risk of operators being scratched or snagged.

[0018] Preferably, a limiting block is integrally formed on the side of the drive block facing the adjusting rod, and the drive block and the limiting block are inserted into the relief groove along the drive shaft axial direction.

[0019] By adopting the above technical solution, the axial insertion installation method is simple and quick. The cooperation between the limiting block and the relief groove ensures that the drive block will not move radially after installation, making the drive block an independent detachable part that can be easily replaced when worn or damaged, thus reducing maintenance costs.

[0020] Preferably, the cross-section of the drive block facing the adjusting rod is larger than the cross-section of the adjusting rod facing the drive block.

[0021] By adopting the above technical solution, the larger contact surface ensures effective transmission of adjustment force even when there is a slight misalignment between the adjustment rod and the drive block, making the adjustment operation more reliable and reducing the difficulty of processing and assembly.

[0022] In summary, this application has at least the following beneficial effects: 1. An eccentric adjustment core is formed by using the drive shaft and its eccentric mounting hole. By pushing the drive shaft to rotate laterally, the small horizontal displacement of the adjustment rod can be efficiently converted into the offset of the roller in the vertical direction. The limited adjustment stroke is concentrated in the direction of most effective correction of parallelism deviation, and online precision correction can be completed without disassembly. 2. All adjustment components, such as the drive shaft, drive block, and adjusting rod, are integrated into the bearing housing body, forming a modular and compact functional unit. The design of the drive block being flush with the outer wall of the housing body avoids interference with surrounding equipment. At the same time, the drive block and drive shaft are axially plugged together, and the drive block provides a bearing surface larger than the end face of the adjusting rod, making the adjustment operation simpler, more reliable, and easier to maintain and replace. Attached image description: Figure 1 A schematic diagram of the structure of the first and second bases; Figure 2 This is an exploded view of the area between the adjusting rod and the first seat. Figure 3 This is a cross-sectional view of the first body.

[0023] Reference numerals: 1. First seat; 11. Adjustment hole; 12. Drive shaft; 121. Relief groove; 13. First mounting hole; 14. Operating groove; 15. Threaded hole; 16. Adjustment rod; 2. Second seat; 21. Second mounting hole; 3. Drive block; 31. Limit block. Detailed implementation method: The following section provides a more detailed description, in conjunction with the accompanying diagrams: As attached Figure 1 and attached Figure 2 As shown, a bearing housing for an eccentric adjusting roller cutter includes a first housing 1 and a second housing 2 arranged opposite to each other. The first housing 1 and the second housing 2 are generally cuboid in shape and are fixed to the equipment frame by fasteners such as bolts. The first housing 1 and the second housing 2 cooperate with each other to provide installation support for the roller cutter and ensure the stable operation of both. In practical applications, the bottom roller is fixedly connected to the equipment frame, and the roller cutter is located above the bottom roller. The roller cutter and the bottom roller are on the same horizontal line in the vertical direction.

[0024] The first seat 1 has an adjustment hole 11 on the side facing away from the second seat 2. A coaxially arranged drive shaft 12 is slidably arranged in the adjustment hole 11. The adjustment hole 11 provides sliding space and guidance for the drive shaft 12, allowing the drive shaft 12 to slide coaxially within it. The size of the adjustment hole 11 is precisely designed according to the outer diameter of the drive shaft 12 to ensure that the drive shaft 12 can rotate smoothly within it. The drive shaft 12 has a first mounting hole 13 that is not coaxial with the drive shaft 12. That is, the axis of the first mounting hole 13 is parallel to but does not coincide with the axis of the drive shaft 12 itself. The first mounting hole 13 is an eccentric hole. The second seat 2 has a second mounting hole 21 on the side facing the first seat 1. The first mounting hole 13 and the second mounting hole 21 are used to fix the roller cutter.

[0025] The first base 1 has an operating groove 14 connected to the adjustment hole 11 on the side facing away from the second base 2. The operating groove 14 is provided with a drive block 3 connected to the drive shaft 12. The drive block 3 is a rectangular block structure. The movement of the drive block 3 perpendicular to the axis of the drive shaft 12 can drive the drive shaft 12 to rotate around the axis of the adjustment hole 11 in the adjustment hole 11. This can drive the roller cutter in the first mounting hole 13 to rotate eccentrically. In the actual installation process, the two ends of the roller cutter are fixed in the first mounting hole 13 and the second mounting hole 21 respectively, so as to adjust the vertical relative position of the roller cutter and the bottom roller.

[0026] As attached Figure 2 and attached Figure 3 As shown, threaded holes 15 are opened on the two side walls of the first base 1 along the axial direction perpendicular to the drive shaft 12. Adjusting rods 16 that are threadedly connected to the threaded holes 15 are also provided on both sides of the first base 1. The two adjusting rods 16 are aligned with the drive block 3 in the axial direction perpendicular to the drive shaft 12, thereby forcing the drive shaft 12 to rotate slightly around its own axis in the adjusting hole 11.

[0027] The adjusting rods 16 on both sides of the first seat 1 are aligned axially along the threaded hole 15, and the two adjusting rods 16 act on a straight line, ensuring that the force applied by the two adjusting rods 16 to the drive block 3 is on the same straight line. The cross-section of the drive block 3 facing the adjusting rod 16 is rectangular, and the cross-section of the adjusting rod 16 facing the drive block 3 is circular. Therefore, the cross-section of the drive block 3 facing the adjusting rod 16 is larger than the cross-section of the adjusting rod 16 facing the drive block 3. The larger contact surface ensures that even if there is a small alignment error between the adjusting rod 16 and the drive block 3, the adjusting force can be effectively transmitted. After the drive block 3 moves axially along the threaded hole 15, the side wall of the drive block 3 can still cover the end of the adjusting rod 16, making the adjustment operation more reliable. At the same time, the height of the adjusting rod 16 in the direction perpendicular to the axial direction of the threaded hole 15 and the axial direction of the mounting hole is higher than the outer wall of the top of the drive shaft 12, avoiding interference between the adjusting rod 16 and the outer wall of the drive shaft 12 when it is screwed into the seat.

[0028] Limiting blocks 31 are integrally formed on both sides of the drive block 3 facing the adjusting rod 16. The drive block 3 and the limiting blocks 31 are inserted into the clearance groove 121 opened on the drive shaft 12 along the axial direction of the drive shaft 12. The clearance groove 121 provides installation space for the drive block 3 and the limiting blocks 31. The drive block 3 and the limiting blocks 31 integrally formed on both sides together form an inverted T-shaped structure. The cross section of the clearance groove 121 along the axial direction of the drive shaft 12 is inverted T-shaped. The side of the drive block 3 facing away from the drive shaft 12 is flush with the outer wall of the first seat 1. The drive block 3 does not protrude from the outer surface of the seat, avoiding interference with surrounding parts in the narrow installation space. This ensures that the drive block 3 will not move radially after installation, making the drive block 3 an independent detachable part that can be easily replaced when worn or damaged.

[0029] The distance between the center of the first mounting hole 13 and the top outer wall of the drive shaft 12 is less than the distance between the center of the first mounting hole 13 and the bottom of the drive shaft 12. This makes the opening position of the first mounting hole 13 on the drive shaft 12 closer to the side of the drive block 3. When the adjusting rod 16 adjusts the drive shaft 12 through the drive block 3, the small horizontal input displacement of the adjusting rod 16 can be efficiently amplified and converted into the offset of the roller cutter in the vertical direction. Furthermore, the diameter of the axial section of the first mounting hole 13 is smaller than the diameter of the axial section of the drive shaft 12, ensuring that the drive shaft 12 has a sufficiently thick solid body, providing sufficient mechanical strength and rigidity, and avoiding bending or torsional deformation of the drive shaft 12 when subjected to the working load and adjustment force of the roller cutter over a long period of time.

[0030] The implementation principle of this embodiment is as follows: When it is necessary to adjust the parallelism between the roller cutter and the bottom roller, the operator does not need to disassemble the equipment. He only needs to use a tool to rotate the adjusting rods 16 on both sides of the first seat. The adjusting rods 16 push the drive block 3, forcing the drive shaft 12 to rotate in the adjusting hole 11. Since the first mounting hole 13 is eccentric, its rotation will directly cause the axis position of the roller cutter to change. Through the precise cooperation of the adjusting rods 16 on both sides, the vertical offset of one end of the roller cutter can be precisely controlled, thereby achieving precise alignment and parallelism correction with the bottom roller.

[0031] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of protection claimed in this application.

Claims

1. A bearing housing for an eccentric adjusting roller cutter, comprising two opposingly arranged first housing bodies (1) and second housing bodies (2), characterized in that, The first seat (1) has an adjustment hole (11) on the side facing away from the second seat (2). A drive shaft (12) is coaxially arranged in the adjustment hole (11). A first mounting hole (13) is provided on the drive shaft (12) but not on the drive shaft (12). A second mounting hole (21) is coaxial with the first mounting hole (13) on the side facing the first seat (1). The first mounting hole (13) and the second mounting hole (21) are used to fix the roller cutter. The first seat (1) also has an operation groove (14) connected to the adjustment hole (11) on the side facing away from the second seat (2). A drive block (3) connected to the drive shaft (12) is provided in the operation groove (14). An adjustment rod (16) is provided on the side wall of the first seat (1) for adjusting the drive block (3) in a direction perpendicular to the axial direction of the drive shaft (12).

2. The bearing housing for an eccentric adjusting roller cutter according to claim 1, characterized in that, The first base (1) has threaded holes (15) on both sides along the axial direction perpendicular to the drive shaft (12). Adjusting rods (16) are threaded into the two threaded holes (15) respectively, and the adjusting rods (16) are aligned with the drive block (3) along their own axial direction.

3. The bearing housing for an eccentric adjusting roller cutter according to claim 2, characterized in that, The adjusting rods (16) on both sides of the first seat (1) are aligned axially along the threaded hole (15).

4. The bearing housing of the eccentric adjusting roller cutter according to claim 1, characterized in that, The distance between the center of the first mounting hole (13) and the top outer wall of the drive shaft (12) is less than the distance between the center of the first mounting hole (13) and the bottom of the drive shaft (12).

5. The bearing housing of the eccentric adjusting roller cutter according to claim 4, characterized in that, The diameter of the axial section of the first mounting hole (13) is smaller than the diameter of the axial section of the drive shaft (12).

6. The bearing housing of the eccentric adjusting roller cutter according to claim 1, characterized in that, The drive shaft (12) has a clearance groove (121) for the drive block (3) to be installed, and the side of the drive block (3) facing away from the drive shaft (12) is flush with the outer wall of the first seat (1).

7. The bearing housing of the eccentric adjusting roller cutter according to claim 6, characterized in that, The drive block (3) is integrally formed with a limiting block (31) on the side facing the adjusting rod (16), and the drive block (3) and the limiting block (31) are inserted into the relief groove (121) along the drive shaft (12).

8. The bearing housing of the eccentric adjusting roller cutter according to claim 1, characterized in that, The cross section of the drive block (3) facing the adjusting rod (16) is larger than the cross section of the adjusting rod (16) facing the drive block (3).

Images