A sawing machine mechanism for roll body machining

Abstract

The application relates to the hollow roller cutting technical field, in particular to a sawing machine mechanism for roller machining, which comprises a sawing machine main body, an air inflation shaft main body, a deformation prevention structure, an auxiliary supporting structure and a height adjusting structure, a supporting leg is integrally connected to the side surface of the sawing machine main body, a height adjusting mechanism for adjusting the position and height of the supporting leg is arranged above the supporting leg, the side surface of the height adjusting mechanism is fixedly connected with the air inflation shaft main body matched with the inner hole of the hollow roller, the air inflation shaft main body is internally provided with a rubber expansion air bag capable of being deformed, the outer side of the rubber expansion air bag is fixedly connected with the deformation prevention structure capable of moving in the radial direction, the adjacent two deformation prevention structures are provided with the auxiliary supporting structure capable of synchronously moving in the radial direction with the deformation prevention structure, the supporting area is greatly increased through the deformation prevention structure and the auxiliary supporting structure, the local overhanging area of the inner wall of the hollow roller is eliminated, and the hollow roller is prevented from being deformed during sawing.

Description

Technical Field

[0001] This invention relates to the field of hollow roller cutting technology, and in particular to a sawing mechanism for roller processing. Background Technology

[0002] Rollers are core components in various conveying equipment, printing machinery, and laminating equipment. When cutting rollers to a fixed length, special saws are generally used. When using existing saws, threaded rods drive the clamping plates to move in order to clamp the rollers. The clamping plates apply pressure to the rollers to achieve hard contact clamping and fixing. To significantly reduce weight, improve operational stability, or incorporate internal cooling channels, some rollers are hollow, such as aluminum alloy hollow rollers. When made of high-strength aluminum alloys like 6061-T6, the tensile strength is ≥300 MPa. However, the structural strength of these hollow rollers is lower than that of solid rollers, and their smooth surface makes them prone to slippage during cutting. To prevent movement during cutting, clamping plates need to apply significant clamping force, which can easily cause deformation of the hollow rollers. The hard contact clamping between the clamping plates and the rollers cannot absorb the high-frequency cutting vibrations generated by the high-speed rotation of the saw blade. These vibrations are directly transmitted along the roller wall to the entire workpiece, ultimately causing vibration marks on the saw face. This not only affects the machining accuracy of the roller's end face but also significantly shortens the service life of the saw blade. Summary of the Invention

[0003] The purpose of this invention is to provide a sawing mechanism for roller processing to solve the problems mentioned in the background art.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a sawing mechanism for roller processing, including a sawing body, an air shaft body, an anti-deformation structure, an auxiliary support structure, and a height adjustment structure; The main body of the saw is integrally connected to a support leg on the side. A height adjustment mechanism for adjusting its own position and height is provided above the support leg. An air shaft body adapted to the inner hole of the hollow roller is fixedly connected to the side of the height adjustment mechanism facing the main body of the saw. The main body of the air shaft is equipped with a deformable rubber expansion air bladder. The outer circumferential side of the rubber expansion air bladder is fixedly connected to an anti-deformation structure that can move radially. When the gas pressure inside the rubber expansion air bladder changes, it is used to control the anti-deformation structure to generate radial displacement of different strokes. An auxiliary support structure is provided between two adjacent anti-deformation structures, which moves radially synchronously with the anti-deformation structure. The outer circumference of the air shaft body is provided with an annular push plate that moves along its axial direction. The push plate abuts against the top of the hollow roller. When the push plate is subjected to force and moves axially along the air shaft body, it is used to change the sawing position of the hollow roller on the sawing machine body.

[0005] Preferably, the anti-deformation structure includes an air-expanding block, a buffer block, and an anti-deformation plate. A fixed shaft is fixedly connected inside the air-expanding shaft body. At least two annular rubber expansion airbags are fixedly connected in the middle of the fixed shaft. An air-expanding block is fixedly connected to the outer wall of the rubber expansion airbag. A buffer block is fixedly connected to the top of the air-expanding block. An anti-deformation plate is fixedly connected to the top of the buffer block. The auxiliary support structure and the anti-deformation plate are alternately arranged. When the rubber expansion airbag is inflated, it is used to control the anti-deformation plate to apply a clamping force to the inner wall of the hollow roller body.

[0006] Preferably, the anti-deformation plate includes an additional plate and a guide head. The surface of the additional plate is in contact with the inner wall of the hollow roller. The surface of the additional plate facing the inner wall of the hollow roller is bonded with a rubber layer that can absorb high-frequency cutting vibration, so as to prevent the roller from deforming when cutting the soft hollow roller. The guide head is fixedly connected to the end of the auxiliary plate that is inserted into the hollow roller. The guide head has an arc-shaped structure and is used to guide the hollow roller during insertion. The surface of the rubber layer is laser-printed with anti-slip texture to increase the anti-slip effect between the anti-deformation plate and the hollow roller.

[0007] Preferably, the anti-deformation plate further includes a second mounting groove and a first bolt, the first bolt being located in the second mounting groove, the top end of the buffer block being inserted into and adapted to the second mounting groove, and the first bolt being locked and fixed to the buffer block, which facilitates reducing the number of parts that need to be disassembled when the anti-deformation plate is worn. The buffer block has two second mounting holes facing the top of the anti-deformation plate. The first bolt passes through the anti-deformation plate and is threaded into the second mounting holes to connect the anti-deformation plate and the buffer block into a whole. The thickness of the buffer block is adapted to the inner diameter of the hollow roller body, and is used to adapt to hollow roller bodies with different inner diameters.

[0008] Preferably, the air expansion block includes a connecting plate and an air expansion key. The air expansion key is fixedly connected to the side of the connecting plate away from the rubber expansion air bladder. The connecting plate and the rubber expansion air bladder are fixedly connected to each other. The connecting plate has an arc-shaped structure to ensure the stability of the air expansion key when external pressure is applied. The air expansion block also includes a first mounting groove and a first mounting hole. The first mounting groove is located at the top of the air expansion key, and the first mounting hole is located at the bottom of the first mounting groove. A positioning protrusion is fixedly connected to the top of the buffer block. When the positioning protrusion is inserted into the first mounting groove, the buffer block and the air expansion key are positioned and installed. A second bolt is provided in the middle of the buffer block and threadedly connected to the first mounting hole.

[0009] Preferably, the auxiliary support structure includes an auxiliary support plate and a limiting member. When the anti-deformation structure is in contact with the inner wall of the hollow roller, the auxiliary support plate is driven by an external force to move along the limiting member, so that the surface of the auxiliary support plate is in contact with the inner wall of the hollow roller, which is used to fill the gap between the anti-deformation plates. The auxiliary support structure also includes a limiting hole, an auxiliary adsorption plate, and a magnetic strip. The main body of the auxiliary support plate is an arc-shaped structure. The side of the auxiliary support plate facing the inner wall of the roller is in contact with the inner wall of the roller. The limiting hole penetrates the auxiliary support plate. The limiting member is slidably connected in the limiting hole. The side walls of the limiting hole and the limiting member are both stepped structures, which are used to limit the distance that the auxiliary support plate slides along the limiting member.

[0010] Preferably, auxiliary adsorption plates are provided on both sides of the auxiliary support plate. One end of the auxiliary adsorption plate is fixedly connected to the inner wall of the anti-deformation plate, and the other end of the auxiliary adsorption plate extends to the auxiliary support plate. The magnetic strip is fixedly connected to the inner wall of the auxiliary support plate to magnetically fix the auxiliary support plate and the auxiliary adsorption plate to each other, so as to realize the synchronous radial movement of the auxiliary adsorption plate when the anti-deformation plate expands radially.

[0011] Preferably, the height adjustment structure includes an adjustment frame, a height adjustment disc, and a height adjustment screw. The adjustment frame has a U-shaped structure, the height adjustment disc is located in the middle of the adjustment frame, and the height adjustment disc has sliding grooves on both sides facing the adjustment frame. The adjustment frame is slidably connected to the sliding grooves. The height adjustment screw is rotatably connected to the upper surface of the height adjustment disc. The height adjustment screw is threadedly connected to the adjustment frame. When the height adjustment screw is rotated by an applied force, the height adjustment disc moves vertically along the adjustment frame to change the position and height of the air shaft body and the hollow roller body. A positioning table is fixedly connected to the main body of the sawing machine. The upper end of the positioning table is provided with a V-shaped opening to accommodate hollow rollers of different diameters.

[0012] Preferably, a fixing column is fixedly connected to one end of the air shaft body facing the height adjustment disc, and the fixing column and the height adjustment disc are fixedly connected. The push plate is slidably connected to an L-shaped support plate on the side away from the adjusting frame. The outer wall of the push plate is provided with bolts, and the support plate and bolts are threaded together. When the push plate moves axially along the air expansion shaft body, it is used to push the hollow roller body to move.

[0013] Preferably, the push plate has a threaded post and a guide post fixedly connected to its side, both of which penetrate the height adjustment disc. The height adjustment disc has a drive gear on its side, and a sleeve is fixedly connected to the middle of the drive gear. The sleeve has an internal thread in its inner hole and is threadedly connected to the threaded post. The outer wall of the sleeve is rotatably connected to the height adjustment disc through a bearing. The height adjustment disc has a connecting gear and a motor on its two sides, which are connected to the power output end of the motor. The connecting gear and the drive gear mesh with each other.

[0014] The beneficial effects of this invention are as follows: First, this invention sets a buffer block and an anti-deformation plate on the air expansion block, which can support the inner wall of the hollow roller body during sawing. Compared with the traditional clamping plate clamping on the smooth outer wall of the hollow roller body, this invention clamps inside the hollow roller body, realizing uniform support for the inner wall of the hollow roller body in the entire circumference. At the same time, the rubber layer on the surface of the anti-deformation plate can efficiently absorb the high-frequency cutting vibration during the sawing process, ensuring the smooth cutting end face of the hollow roller body, greatly improving the cutting accuracy of the hollow roller body, and eliminating the need for subsequent secondary grinding and correction. Second, an auxiliary support plate is set between the two anti-deformation plates to fill the gap between the two anti-deformation plates, which greatly improves the support uniformity inside the hollow roller body and avoids local deformation of the hollow roller body during sawing. Third, with external anti-deformation plates and buffer blocks of different thicknesses, it can adapt to the cutting of hollow rollers of different sizes, greatly improving the adaptability of the equipment; Fourth, a rubber layer that can absorb high-frequency cutting vibration is bonded to the surface of the anti-deformation plate, and works in conjunction with the buffer block to buffer the vibration, which can prevent the sawing end face from having vibration marks when cutting the hollow roller, and also prevent the hollow roller from moving during cutting, thus ensuring cutting accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the placement of the saw body and the hollow roller provided by the present invention.

[0016] Figure 2 This is a schematic diagram showing the connection between the main body of the saw and the height adjustment plate provided by the present invention.

[0017] Figure 3 This is a schematic diagram of the connection between the height adjustment disc and the adjustment bracket provided by the present invention.

[0018] Figure 4This is a schematic diagram of the hollow roller body being cut and connected according to the present invention.

[0019] Figure 5 This is a schematic diagram showing the connection between the height adjustment disc and the main body of the air shaft provided by the present invention.

[0020] Figure 6 This is a schematic diagram of the connection between the drive gear and the sleeve provided by the present invention.

[0021] Figure 7 This is a schematic diagram of the connection between the air shaft body and the anti-deformation plate provided by the present invention.

[0022] Figure 8 This is a schematic diagram of the connection between the air-inflating block and the rubber expansion airbag provided by the present invention.

[0023] Figure 9 This is a cross-sectional view of the main body of the air shaft provided by the present invention.

[0024] Figure 10 This is a schematic diagram of the connection between the anti-deformation plate and the auxiliary support structure provided by the present invention.

[0025] Figure 11 This is a cross-sectional view of the replication support plate and limiting hole provided by the present invention.

[0026] Figure 12 This is a schematic diagram of the connection between the anti-deformation plate and the buffer block provided by the present invention.

[0027] Figure 13 This is a schematic diagram of the connection between the buffer block and the second bolt provided by the present invention.

[0028] Figure 14 This is a schematic diagram of the anti-deformation plate connection provided by the present invention.

[0029] In the diagram: 1. Sawing machine body, 2. Positioning table, 3. Support leg, 31. Adjustment frame, 32. Height adjustment plate, 33. Slide groove, 34. Guide column, 35. Threaded column, 36. Drive gear, 37. Push plate, 38. Height adjustment screw, 39. Support plate, 310. Sleeve, 311. Connecting gear. 4. Air shaft body, 41. Fixing column, 42. Air block, 43. Vent hole, 44. Fixing shaft, 45. Rubber expansion air bag, 46. Vent pipe; 421 Connecting plate, 422 Air expansion key, 423 First mounting slot, 424 First mounting hole; 5 Anti-deformation plate, 51 Additional plate, 52 Second mounting slot, 53 First bolt, 54 Guide head; 6. Auxiliary support structure, 61. Auxiliary support plate, 62. Limiting hole, 63. Limiting component, 64. Auxiliary adsorption plate, 65. Magnetic strip; 7. Buffer block, 71. Positioning protrusion, 72. Second bolt, 73. Second mounting hole. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0031] See Figures 1-14 This invention provides a sawing mechanism for processing hollow rollers, comprising a sawing body 1, an air shaft body 4, an anti-deformation structure, an auxiliary support structure 6, and a height adjustment structure. This invention cuts hollow rollers. During cutting, the air shaft body 4 is inserted into the inner hole of the hollow roller. The rubber expansion air bladder 45 inside the air shaft body 4 expands upon airflow, thereby pressing the anti-deformation structure and the auxiliary support structure 6 against the inner wall of the hollow roller to achieve precise clamping of the hollow roller. The auxiliary support structure 6 and the anti-deformation structure cooperate with each other, achieving uniform circumferential support of the inner wall of the hollow roller during clamping, preventing deformation of the hollow roller due to clamping force. After the hollow roller is sawn... After completion, the rubber expansion airbag 45 contracts, causing the anti-deformation structure and auxiliary support structure 6 to reset. The threaded column 35 drives the push plate 37 to move, changing the sawing position of the hollow roller. At this time, the rubber expansion airbag 45 inflates again, clamping and fixing the hollow roller again. The height adjustment structure is connected to the air shaft body 4. Before clamping the hollow roller, the push plate 37 is used to push the hollow roller to move, thereby moving the processed position of the hollow roller to the saw blade of the cutting machine. When it is necessary to clamp hollow rollers with different inner diameters, the height of the clamping position of the hollow roller is changed by controlling the movement of the height adjustment structure, thereby driving the air shaft body 4 to move and change, so as to adapt to the clamping and positioning of hollow rollers of different sizes.

[0032] Reference 8. Figure 12 , Figure 13 , Figure 14The anti-deformation structure includes an air expansion block 42, a buffer block 7, and an anti-deformation plate 5. A fixed shaft 44 is fixedly connected internally to the air expansion shaft body 4. The fixing method can be welding, riveting, screwing, or gluing. At least two annular rubber expansion air bladders 45 are fixedly connected in the middle of the fixed shaft 44. Ventilation holes 43, the same number as the rubber expansion air bladders 45, are provided near the end of the air expansion shaft body 4. Ventilation pipes 46 connect the vent holes and the rubber expansion air bladders 45. An air compressor station is provided outside the air expansion shaft, and the air compressor station is connected to the air expansion shaft body via an air pipeline. Air vents 43 connect to the rubber airbag for inflation and deflation. An air-expanding block 42 is fixedly connected to the outer wall of the rubber airbag 45. A buffer block 7 is fixedly connected to the top of the air-expanding block 42, and an anti-deformation plate 5 is fixedly connected to the top of the buffer block 7. The auxiliary support structure 6 and the anti-deformation plate 5 are alternately arranged. When the rubber airbag 45 inflates, it drives the anti-deformation plate 5 and the auxiliary support structure 6 to move radially, pushing them to adhere to the inner wall of the hollow roller, thus applying pressure to the inner wall of the hollow roller. Compared with the air-expanding blocks of traditional air-expanding shafts, the anti-deformation plate 5 increases the contact area, reduces the unit pressure on the inner wall of the roller, and further reduces the risk of deformation during hollow roller clamping.

[0033] refer to Figure 5 and Figure 14 The anti-deformation plate 5 includes an auxiliary plate 51 and a guide head 54. The surface of the auxiliary plate 51 is in contact with the inner wall of the hollow roller. A rubber layer that absorbs high-frequency cutting vibrations is bonded to the surface of the auxiliary plate 51 facing the inner wall of the hollow roller to prevent deformation of the roller when cutting the soft hollow roller. The thickness of the rubber layer is set to 4mm, and the Shore hardness of the rubber layer is set to 40A-60A. While adhering to and supporting the inner wall of the hollow roller, it attenuates the high-frequency vibrations generated by sawing. When sawing the hollow roller, it can avoid the problems of dents, vibrations, and deformation that occur when sawing the soft hollow roller.

[0034] refer to Figure 3 and Figure 13 The guide head 54 is fixedly connected to the end of the auxiliary plate 51 facing the insertion of the hollow roller. The guide head 54 has an arc-shaped structure and is used to guide the hollow roller during insertion, so that the hollow roller can be inserted into the anti-deformation plate 5 more easily and avoid the end of the anti-deformation plate 5 from blocking the hollow roller. The surface of the rubber layer is laser-printed with anti-slip texture, which increases the friction between the anti-deformation plate 5 and the inner wall of the hollow roller, and increases the anti-slip effect between the anti-deformation plate 5 and the hollow roller. During the sawing process, the hollow roller will not slip or deviate axially, ensuring processing accuracy.

[0035] refer to Figure 14The anti-deformation plate 5 also includes a second mounting groove 52 and a first bolt 53. The first bolt 53 is located in the second mounting groove 52, and the top of the buffer block 7 is inserted into and adapted to the second mounting groove 52. The first bolt 53 is locked and fixed to the buffer block 7, which facilitates reducing the number of parts that need to be disassembled when the anti-deformation plate 5 wears. After the buffer block 7 is installed, the anti-deformation plate 5 is positioned relative to the buffer block 7 through the second mounting groove 52. The first bolt 53 passes through the anti-deformation plate 5 and is threaded into the second mounting hole 73 to connect the anti-deformation plate 5 and the buffer block 7 into a whole. When the anti-deformation plate 5 wears out after long-term use, it is not necessary to disassemble the internal structure of the air shaft. The anti-deformation plate 5 can be replaced individually simply by rotating the first bolt 53, thereby greatly reducing the number of structures to be disassembled during maintenance and reducing downtime during maintenance.

[0036] The thickness of the buffer block 7 is adapted to the inner diameter of the hollow roller body, allowing it to accommodate hollow roller bodies with different inner diameters. When it is necessary to clamp hollow roller bodies with different inner diameters, the buffer block 7 of different thicknesses can be replaced. When the anti-deformation plate 5 is driven to move radially, the distance of radial movement of the anti-deformation plate 5 can be controlled. At the same time, the buffer block 7 is located between the air expansion block and the anti-deformation plate 5, playing a buffering and shock-absorbing role, absorbing the impact generated during sawing by the sawing machine, and ensuring the accuracy of sawing the hollow roller body.

[0037] refer to Figure 8 , Figure 12 , Figure 13 and Figure 14 The air-expanding block 42 includes a connecting plate 421 and an air-expanding key 422. The air-expanding key 422 is fixedly connected to the side of the connecting plate 421 away from the rubber expansion airbag 45. The connecting plate 421 and the rubber expansion airbag 45 are fixedly connected to each other. The connecting plate 421 has an arc-shaped structure to ensure the stability of the air-expanding key 422 when external pressure is applied. The connecting plate 421 increases the connection area between the air-expanding block and the rubber expansion airbag 45, so that when the rubber expansion airbag 45 is inflated, the expansion force can be evenly distributed and transmitted to the air-expanding key, avoiding localized force concentration and damage to the airbag.

[0038] The air expansion block 42 also includes a first mounting groove 423 and a first mounting hole 424. The first mounting groove 423 is located at the top of the air expansion key 422, and the first mounting hole 424 is located at the bottom of the first mounting groove 423. A positioning protrusion 71 is fixedly connected to the top of the buffer block 7. When the positioning protrusion 71 is inserted into the first mounting groove 423, the buffer block 7 and the air expansion key 422 are positioned and installed. A second bolt 72 is provided in the middle of the buffer block 7 and threadedly connected to the first mounting hole 424. Before installing the anti-deformation plate 5, first insert the positioning protrusion 71 at the top of the buffer block 7 into the bottom of the first mounting groove 423 to achieve quick alignment of the buffer block 7 and the air expansion key 422. Then, use the second bolt 72 to pass through the buffer block 7 and thread it into the first mounting hole 424 to connect the buffer block 7 and the air expansion key 422 into a whole. This installation method can limit the position of the buffer block 7 and will not cause the buffer block 7 to shift circumferentially during long-term use. The buffer block 7 can also buffer vibration and ensure the stability of the hollow roller body during cutting.

[0039] refer to Figure 9 and Figure 10 The auxiliary support structure 6 includes an auxiliary support plate 61, a limiting member 63, a limiting hole 62, an auxiliary adsorption plate 64, and a magnetic strip 65. When the anti-deformation structure is in contact with the inner wall of the hollow roller, the auxiliary support plate 61 is driven by an external force to move along the limiting member 63, so that the surface of the auxiliary support plate 61 is in contact with the inner wall of the hollow roller, which is used to fill the gap between the anti-deformation plates 5. The main body of the auxiliary support plate 61 is an arc-shaped structure. The side of the auxiliary support plate 61 facing the inner wall of the roller is in contact with the inner wall of the roller. The limiting hole 62 penetrates the auxiliary support plate 61. The limiting member 63 is slidably connected in the limiting hole 62. The side walls of the limiting hole 62 and the limiting member 63 are both stepped structures, which are used to limit the distance that the auxiliary support plate 61 slides along the limiting member 63. When the anti-deformation plate 5 moves towards the inner wall of the hollow roller, it can move the auxiliary support plate 61 along with the auxiliary adsorption plate 64, bringing the auxiliary support plate 61 into contact with the inner wall of the hollow roller. This provides stable support to the previously unsupported areas between adjacent anti-deformation plates 5, greatly increasing the support area and eliminating local suspended areas on the inner wall. During sawing of the hollow roller, the entire circumference of the inner wall of the roller is effectively supported. As the auxiliary support plate 61 moves, the limiting member 63 guides its movement. When the end of the limiting member 63 is fully engaged in the limiting hole 62, it limits the movement distance of the auxiliary support plate 61, thus preventing excessive pressure from the anti-deformation plate 5 and the auxiliary support plate 61 on the inner wall of the hollow roller, which could lead to deformation of the hollow roller, adding an extra layer of safety.

[0040] Auxiliary adsorption plates 64 are provided on both sides of the auxiliary support plate 61. One end of the auxiliary adsorption plate 64 is fixedly connected to the inner wall of the anti-deformation plate 5, and the other end of the auxiliary adsorption plate 64 extends to the auxiliary support plate 61. A magnetic strip 65 is fixedly connected to the inner wall of the auxiliary support plate 61 to magnetically fix the auxiliary support plate 61 and the auxiliary adsorption plate 64 to each other. When the anti-deformation plate 5 moves toward the air expansion shaft body 4, it can drive the auxiliary adsorption plate 64 to move together, so that the auxiliary adsorption plate moves radially synchronously when the anti-deformation plate 5 expands radially. This allows the auxiliary adsorption plate 64 and the anti-deformation plate 5 to move toward the air expansion shaft body 4 together, reducing the outer diameter and overcoming the problem that the outer diameter of the auxiliary adsorption plate 64 is too large after the rubber expansion airbag 45 is vented, which would hinder the next installation of the hollow roller.

[0041] refer to Figure 3 and Figure 5 The height adjustment structure includes an adjustment frame 31, a height adjustment disc 32, and a height adjustment screw 38. The adjustment frame 31 has a U-shaped structure. A positioning table 2 is fixedly connected to the main body 1 of the saw. The upper end of the positioning table 2 is provided with a V-shaped opening to accommodate hollow rollers of different diameters. Support legs 3 are fixedly connected to both sides of the lower end of the adjustment frame 31. The top of the support legs 3 is fixedly connected to the main body 1 of the saw. When installing the hollow roller, place it on the positioning platform 2 and move it along the platform 2 until it is inserted into the air shaft body 4, awaiting subsequent inflation and clamping by the rubber expansion airbag 45. The height adjustment disc 32 is located in the middle of the adjustment frame 31. The height adjustment disc 32 has grooves 33 on both sides facing the adjustment frame 31, and the adjustment frame 31 is slidably connected within the grooves 33. A height adjustment screw 38 is rotatably connected to the upper surface of the height adjustment disc 32. The height adjustment screw 38 is threadedly connected to the adjustment frame 31. When the height adjustment screw 38 is rotated by applied force, the height adjustment disc 32 moves vertically along the adjustment frame 31 to change the position and height of the air shaft body 4 and the hollow roller. When clamping hollow rollers of different sizes... When in use, the operator manually rotates the height adjustment screw 38. At this time, the height adjustment disc 32 changes its position height along the adjustment frame 31. When the height adjustment disc 32 slides, the slide groove 33 and the adjustment frame 31 limit the height adjustment disc 32, which can control the precise movement of the height adjustment disc 32, thereby changing the position height of the air shaft body 4, so that the position height of the air shaft body matches that of the positioning table 2, which facilitates the subsequent installation of the hollow roller. After the position adjustment disc 32 is completed, it is then connected to the height adjustment disc 32 with bolts. The end of the bolts presses against the adjustment frame 31, which limits and fixes the position height of the height adjustment disc 32 again, preventing the height adjustment disc 32 from moving when sawing the hollow roller, thus affecting the sawing accuracy.

[0042] A fixing column 41 is fixedly connected to one end of the air shaft body 4 facing the height adjustment plate 32. The fixing column 41 and the height adjustment plate 32 are fixedly connected. An annular push plate 37 is sleeved on the air shaft body 4. An L-shaped support plate 39 is slidably connected to the side of the push plate 37 away from the adjustment frame 31. Bolts are provided on the outer side wall of the push plate 37. The support plate 39 and the bolts are threadedly connected. When hollow rollers of different diameters are installed, the ends of the hollow rollers abut against the side of the push plate 37. Multiple support plates 39 cooperate with each other to achieve the initial positioning of the hollow rollers.

[0043] refer to Figure 5 and Figure 6 The push plate 37 is fixedly connected to the side of a threaded post 35 and a guide post 34. Both the threaded post 35 and the guide post 34 pass through the height adjustment disk 32. The side of the height adjustment disk 32 is provided with a drive gear 36. A sleeve 310 is fixedly connected in the middle of the drive gear 36. The inner hole of the sleeve 310 is provided with an internal thread and is threadedly connected to the threaded post 35. The outer wall of the sleeve 310 is rotatably connected to the height adjustment disk 32 through a bearing. The two sides of the height adjustment disk 32 are respectively provided with a connecting gear 311 and a motor. The connecting gear 311 is connected to the power output end of the motor. The connecting gear 311 and the drive gear 36 mesh with each other. When the motor drives the connecting gear 311 to rotate, the connecting gear 311 drives the drive gear 36 and the sleeve 310 to rotate together through meshing transmission. The thread inside the sleeve 310 drives the threaded column 35 and the push plate 37 to move together. The guide column 34 can guide and limit the movement of the push plate 37. When the push plate 37 moves axially along the air shaft body 4, it is used to push the hollow roller to move and move the hollow roller to the cutting position of the saw blade, thereby accurately controlling the cutting position of the hollow roller.

[0044] The hollow roller body of the present invention is mostly used in printing machinery, coating equipment and other industries. According to the length of the hollow roller body blank and the target length of the finished hollow roller body, a single blank can be cut once to obtain a single roller body blank. At the same time, the present invention is also suitable for multiple sawing of various pipes. The push plate 37 is driven by the threaded column 35 to move axially, thereby pushing the pipe to different sawing positions to realize multiple sawing, which greatly increases the practicality.

[0045] In actual use, the expansion of the rubber airbag 45 causes the air block 42, the buffer block 7, and the anti-deformation plate 5 to move radially together, bringing the anti-deformation plate 5 against the inner wall of the hollow roller. The pressure of the rubber airbag 45 and the anti-deformation plate 5 on the inner wall of the hollow roller is 0.02MPa, which not only meets the clamping requirements for anti-slip but also controls the deformation of the hollow roller within 0.02mm, in accordance with relevant engineering specifications. When the anti-deformation plate 5 moves, it also moves the auxiliary support plate 61 together, bringing the auxiliary support plate 61 into contact with the inner wall of the hollow roller. This provides stable support for the previously unsupported gaps between adjacent anti-deformation plates 5, greatly increasing the support area and eliminating local suspended areas on the inner wall. When sawing the hollow roller, the inner wall of the roller is effectively supported around the entire circumference, preventing deformation of the roller.

[0046] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sawing mechanism for roller body processing, characterized in that: It includes the main body of the saw (1), the main body of the air shaft (4), the anti-deformation structure, the auxiliary support structure (6), and the height adjustment structure; The main body (1) of the saw is integrally connected to a support leg (3) on the side. A height adjustment mechanism for adjusting its own position height is provided above the support leg (3). An air shaft body (4) adapted to the inner hole of the hollow roller is fixedly connected to the side of the height adjustment mechanism facing the main body of the saw. The main body (4) of the air shaft is provided with a rubber expansion air bladder (45) that can deform. The outer circumferential side of the rubber expansion air bladder (45) is fixedly connected with an anti-deformation structure that can move radially. When the gas pressure inside the rubber expansion air bladder (45) changes, it is used to control the anti-deformation structure to generate radial displacement with different strokes. An auxiliary support structure is provided between two adjacent anti-deformation structures, which moves radially synchronously with the anti-deformation structure. The outer circumference of the air shaft body (4) is provided with an annular push plate (37) that moves along its axial direction. The push plate (37) abuts against the top of the hollow roller. When the push plate (37) is subjected to force and moves axially along the air shaft body (4), it is used to change the sawing position of the hollow roller on the sawing machine body (1).

2. A sawing mechanism for roller processing according to claim 1, characterized in that: The anti-deformation structure includes an air expansion block (42), a buffer block (7), and an anti-deformation plate (5). A fixed shaft (44) is fixedly connected inside the air expansion shaft body (4). At least two annular rubber expansion airbags (45) are fixedly connected in the middle of the fixed shaft (44). An air expansion block (42) is fixedly connected to the outer wall of the rubber expansion airbag (45). A buffer block (7) is fixedly connected to the top of the air expansion block (42). An anti-deformation plate (5) is fixedly connected to the top of the buffer block (7). The auxiliary support structure (6) and the anti-deformation plate (5) are alternately arranged. When the rubber expansion airbag (45) is ventilated and expanded, it is used to control the anti-deformation plate (5) to apply the clamping force to the inner wall of the hollow roller.

3. A sawing mechanism for roller body processing according to claim 2, characterized in that: The anti-deformation plate (5) includes an additional plate (51) and a guide head (54). The surface of the additional plate (51) is in contact with the inner wall of the hollow roller. The surface of the additional plate (51) facing the inner wall of the hollow roller is bonded with a rubber layer that can absorb high-frequency cutting vibration, so as to prevent the roller from deforming when cutting the soft hollow roller. The guide head (54) is fixedly connected to the end of the auxiliary plate (51) that is inserted toward the hollow roller body. The guide head (54) has an arc-shaped structure and is used to guide the hollow roller body during insertion. The surface of the rubber layer is laser-printed with anti-slip texture to increase the anti-slip effect between the anti-deformation plate (5) and the hollow roller body.

4. A sawing mechanism for roller body processing according to claim 2, characterized in that: The anti-deformation plate (5) also includes a second mounting groove (52) and a first bolt (53). The first bolt (53) is located in the second mounting groove (52). The top end of the buffer block (7) is inserted into the second mounting groove (52). The first bolt (53) is locked and fixed to the buffer block (7), which makes it easier to reduce the number of parts that need to be disassembled when the anti-deformation plate (5) is worn. The buffer block (7) has two second mounting holes (73) facing the top of the anti-deformation plate (5). The first bolt (53) passes through the anti-deformation plate (5) and is threaded to the second mounting holes (73) to connect the anti-deformation plate (5) and the buffer block (7) into a whole. The thickness of the buffer block (7) is adapted to the inner diameter of the hollow roller body, and is used to adapt to hollow roller bodies with different inner diameters.

5. A sawing mechanism for roller body processing according to claim 2, characterized in that: The air-expanding block (42) includes a connecting plate (421) and an air-expanding key (422). The air-expanding key (422) is fixedly connected to the side of the connecting plate (421) away from the rubber expansion airbag (45). The connecting plate (421) and the rubber expansion airbag (45) are fixedly connected to each other. The connecting plate (421) has an arc-shaped structure to ensure the stability of the air-expanding key (422) when external pressure is applied. The air block (42) further includes a first mounting groove (423) and a first mounting hole (424). The first mounting groove (423) is located at the top of the air key (422), and the first mounting hole (424) is located at the bottom of the first mounting groove (423). The top of the buffer block (7) is fixedly connected with a positioning protrusion (71). When the positioning protrusion (71) is inserted into the first mounting groove (423), the buffer block (7) and the air key (422) are positioned and installed. A second bolt (72) is provided in the middle of the buffer block (7) and threadedly connected to the first mounting hole (424).

6. A sawing mechanism for roller processing according to claim 2, characterized in that: The auxiliary support structure (6) includes an auxiliary support plate (61) and a limiting member (63). When the anti-deformation structure is in contact with the inner wall of the hollow roller, the auxiliary support plate (61) is driven by external force to move along the limiting member (63) to make the surface of the auxiliary support plate (61) in contact with the inner wall of the hollow roller, so as to fill the gap between the anti-deformation plates (5). The auxiliary support structure (6) also includes a limiting hole (62), an auxiliary adsorption plate (64), and a magnetic strip (65). The main body of the auxiliary support plate (61) is an arc-shaped structure. The side of the auxiliary support plate (61) facing the inner wall of the roller is in contact with the inner wall of the roller. The limiting hole (62) penetrates the auxiliary support plate (61). The limiting member (63) is slidably connected in the limiting hole (62). The side walls of the limiting hole (62) and the limiting member (63) are both stepped structures, which are used to limit the distance that the auxiliary support plate (61) slides along the limiting member (63).

7. A sawing mechanism for roller processing according to claim 6, characterized in that: The auxiliary support plate (61) is provided with auxiliary adsorption plates (64) on both sides. One end of the auxiliary adsorption plate (64) is fixedly connected to the inner wall of the anti-deformation plate (5), and the other end of the auxiliary adsorption plate (64) extends to the auxiliary support plate (61). The magnetic strip (65) is fixedly connected to the inner wall of the auxiliary support plate (61) to magnetically fix the auxiliary support plate (61) and the auxiliary adsorption plate (64) to each other, so as to realize the synchronous radial movement of the auxiliary adsorption plate when the anti-deformation plate (5) expands radially.

8. A sawing mechanism for roller processing according to claim 1, characterized in that: The height adjustment structure includes an adjustment frame (31), a height adjustment disc (32), and a height adjustment screw (38). The adjustment frame (31) has a U-shaped structure. The height adjustment disc (32) is located in the middle of the adjustment frame (31). The height adjustment disc (32) has sliding grooves (33) on both sides facing the adjustment frame (31). The adjustment frame (31) is slidably connected in the sliding grooves (33). The height adjustment screw (38) is rotatably connected to the upper surface of the height adjustment disc (32). The height adjustment screw (38) and the adjustment frame (31) are threadedly connected. When the height adjustment screw (38) is rotated by an applied force, the height adjustment disc (32) moves vertically along the adjustment frame (31) to change the position height of the air shaft body (4) and the hollow roller body. The main body (1) of the saw is fixedly connected to a positioning table (2), and the upper end of the positioning table (2) is provided with a V-shaped opening to accommodate hollow rollers of different diameters.

9. A sawing mechanism for roller processing according to claim 8, characterized in that: The air shaft body (4) is fixedly connected to a fixing column (41) at one end facing the height adjustment disk (32), and the fixing column (41) and the height adjustment disk (32) are fixedly connected. The push plate (37) is slidably connected to an L-shaped support plate (39) on the side away from the adjustment frame (31). The outer side wall of the push plate (37) is provided with bolts. The support plate (39) and the bolts are threaded together. When the push plate (37) moves axially along the air expansion shaft body (4), it is used to push the hollow roller body to move.

10. A sawing mechanism for roller processing according to claim 9, characterized in that: The push plate (37) is fixedly connected to a threaded column (35) and a guide column (34) on its side. The threaded column (35) and the guide column (34) both pass through the height adjustment disk (32). The side of the height adjustment disk (32) is provided with a drive gear (36). A sleeve (310) is fixedly connected in the middle of the drive gear (36). The inner hole of the sleeve (310) is provided with an internal thread and is threadedly connected to the threaded column (35). The outer wall of the sleeve (310) is rotatably connected to the height adjustment disk (32) through a bearing. The two sides of the height adjustment disk (32) are respectively provided with a connecting gear (311) and a motor. The connecting gear (311) is connected to the power output end of the motor. The connecting gear (311) and the drive gear (36) mesh with each other.

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