A convex turning device for processing bamboo material pressing rollers

Abstract

The present invention relates to the field of metal roll processing, and particularly to a convex turning device for processing bamboo pressing rolls. The existing turning devices are not convenient for removing defects on the side surface of the cylindrical roll, resulting in an uneven arc-shaped convex surface after turning. Before turning, it is not convenient to correct the cylindrical roll, which easily causes the cylindrical roll to swing during rotation and easily affects the turning stability due to the generated chips not being cleaned during turning. A convex turning device for processing bamboo pressing rolls includes four support bases, etc.; a bottom plate is fixedly connected between the four support bases, a first support frame is fixedly connected to one side of the bottom plate, and a second support frame is fixedly connected to the side of the bottom plate away from the first support frame. The cylindrical roll is first transversely clamped, and then two arc turning processes are successively performed on its side surface, which can first remove possible defects on the side surface of the unprocessed cylindrical roll, making the arc surface of the processed pressing roll smoother.

Description

Technical Field

[0001] The present invention relates to the field of metal roll processing, and particularly to a convex turning device for processing bamboo pressing rolls. Background Art

[0002] In the processing process of bamboo, flattening the bamboo is a very crucial step. During flattening, a metal convex pressing roll with a certain arc is usually used to roll the bamboo so that the bamboo is shaped. This metal convex pressing roll is processed by turning a cylindrical roll. By turning the side surface of the cylindrical roll, a convex surface with a certain arc is formed.

[0003] However, the existing turning devices are not convenient for removing the defects on the side surface of the cylindrical roll, resulting in an uneven turned arc-shaped convex surface. Before turning, it is not convenient to correct the cylindrical roll, which easily causes the cylindrical roll to swing during rotation, and it is also easy to affect the turning stability due to the generated chips not being cleaned during turning. Summary of the Invention

[0004] In order to overcome the disadvantages in the background art, the present invention provides a convex turning device for processing bamboo pressing rolls, which is more convenient for removing side defects before turning, more convenient for correcting the cylindrical roll, and can improve the turning stability.

[0005] The technical solution of the present invention is: a convex turning device for processing bamboo pressing rolls, including four support bases. A bottom plate is fixedly connected between the four support bases. One side of the bottom plate is fixedly connected with a first support frame, and the side of the bottom plate away from the first support frame is fixedly connected with a second support frame. A first heightening frame is fixedly connected to the first support frame, and a second heightening frame is fixedly connected to the second support frame. A slide rail is fixedly connected between the first heightening frame and the second heightening frame. A tool moving mechanism is arranged on the slide rail, and the tool moving mechanism is used for turning out an arc surface. A rotating mechanism is arranged on the first support frame and the second support frame, and the rotating mechanism is used for driving the cylindrical roll to rotate at a high speed.

[0006] Further, the tool moving mechanism includes an electric slider which is slidably connected to the slide rail. Both sides of the electric slider are slidably connected with limit rods. A tool holder is fixedly connected between the two limit rods. A milling cutter head is fixedly connected to the lower part of the tool holder. A sliding frame is slidably connected to the tool holder. The sliding frame is made of iron. An inclined surface top plate is fixedly connected to the first height increasing frame. One side of the tool holder contacts with the inclined surface top plate. An arc surface guiding frame one is fixedly connected between one sides of the first height increasing frame and the second height increasing frame. An arc surface guiding frame two is fixedly connected between the other sides of the first height increasing frame and the second height increasing frame. A convex arc surface and a guiding arc surface are respectively arranged in the middle of the arc surface guiding frame one and the arc surface guiding frame two. And the curvature of the guiding arc surface on the arc surface guiding frame two is smaller than that of the convex arc surface on the arc surface guiding frame one. A magnet block one is fixedly connected to one side of the arc surface guiding frame one. A magnet block two is fixedly connected to one side of the arc surface guiding frame two. One side of the sliding frame contacts with the magnet block two.

[0007] Further, the rotating mechanism includes a rotating motor which is fixedly connected to the first support frame. A clamping sleeve is rotatably connected to the upper part of the first support frame. The clamping sleeve is connected to the output shaft of the rotating motor. A threaded plate is fixedly connected to one side of the clamping sleeve. A rotating screw is connected to the threaded plate by threads. One end of the rotating screw is rotatably connected to a pressing block. A bent plate is fixedly connected to one side of the second support frame. A push-pull frame is slidably connected to the bent plate. A compression spring is connected between the push-pull frame and the bent plate. A roller is rotatably connected to the upper part of the push-pull frame.

[0008] Further, a correction mechanism is further included. The correction mechanism is arranged on the bottom plate and is used for correcting the position of the cylindrical roller. The correction mechanism includes a vertical rod which is fixedly connected to one side of the bottom plate close to the second support frame. A rotating handle is rotatably connected to the vertical rod. A worm is fixedly connected to one side of the rotating handle. A straight rod frame is fixedly connected to the bottom plate. A worm gear is rotatably connected to the straight rod frame. The worm gear meshes with the worm. A limit frame is fixedly connected to the bottom plate. A square rod frame is placed on the bottom plate. The lower part of the square rod frame passes through the limit frame. A straight rack is fixedly connected to one side of the square rod frame. The straight rack meshes with the worm gear. A swing frame is rotatably connected to the upper part of the square rod frame. A torsion spring is connected between the swing frame and the square rod frame. Two rotating rods are rotatably connected to the swing frame. A pointer is fixedly connected to one side of the swing frame. A scale plate is fixedly connected to one side of the square rod frame. An indicating scale is arranged on the scale plate. The lower part of the pointer contacts with the scale plate, and the lower end of the pointer points to the initial scale.

[0009] Furthermore, it also includes a scraping mechanism, which is arranged on the second elevated frame, and is used to keep the cylindrical roller shaft in a clean state. The scraping mechanism includes a rotating frame, and the rotating frame is rotatably connected to the second elevated frame. Two gears are fixedly connected to the rotating frame, and a rack bent rod is fixedly connected to the upper part of the push-pull frame, and the rack bent rod is meshed with the two gears. One end of the rotating frame is rotatably connected to a support block, and a curved scraper is slidably connected to the lower part of the support block, and a reset spring is connected between the curved scraper and the support block.

[0010] Furthermore, a curved strip is provided at the lower portion of the curved scraper.

[0011] The beneficial effects are as follows: 1. The cylindrical roller is first clamped transversely, and then the side surfaces are subjected to arc turning processes twice in succession, so that the possible defects on the unprocessed side surfaces of the cylindrical roller can be removed first, thereby making the arc surface of the processed pressure roller smoother.

[0012] 2. The rotating rod moves upward and contacts with the rotating shaft of the cylindrical roller. After the two rotating rods contact with the rotating shaft of the cylindrical roller, they will maintain the same lateral state with the cylindrical roller. When the cylindrical roller has a certain inclination angle in the lateral direction, the two rotating rods will also have a certain inclination angle, and due to the gravity of the cylindrical roller itself, the cylindrical roller will only tilt downward toward the side close to the rotating roller, so that the torsion spring is twisted and the pointer deviates from the initial scale on the dial. Then the operator continues to rotate the rotating handle counterclockwise to make the two rotating rods continue to move upward. The rotating rod continues to move upward and will lift up the side of the cylindrical roller close to the rotating roller. Then, as the side of the cylindrical roller close to the rotating roller is slowly lifted up, the pointer will gradually swing in the direction close to the initial scale. When the operator observes that the pointer points to the initial scale on the dial, stop rotating the rotating handle. At this time, the cylindrical roller is in a horizontal state. Then the operator rotates the rotating screw to clamp the cylindrical roller. In this way, the horizontal state of the cylindrical roller is corrected first, and then turning is performed, so that the cylindrical roller is not easy to swing when rotating, thereby making the turning more accurate.

[0013] 3. After the operator places and clamps the cylindrical roller, he releases the push-pull frame to reset it, so that the rotating frame swings downward to drive the support block and the arc scraper to reset downward. The arc scraper will contact the side of the cylindrical roller shaft when it resets downward, and the reset spring is compressed, so that the arc strip at the bottom of the arc scraper is close to the side of the cylindrical roller shaft. Then, when the cylindrical roller is driven by the ferrule to rotate at high speed, the milling cutter head will produce metal debris when turning the cylindrical roller. The arc scraper close to the side of the cylindrical roller shaft will scrape the splashed metal debris from the shaft. In this way, it is not easy for metal debris to be mixed between the cylindrical roller shaft and the two rotating rods, and it is not easy to affect the stability of the cylindrical roller rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1Schematic three-dimensional structure diagram of the present invention.

[0015] Figure 2 Schematic three-dimensional structure diagram of the tool moving mechanism of the present invention.

[0016] Figure 3 Partial schematic three-dimensional structure diagram of the tool moving mechanism of the present invention.

[0017] Figure 4 Schematic three-dimensional structure diagram of the rotating mechanism of the present invention.

[0018] Figure 5 For the present invention Figure 4 Enlarged schematic three-dimensional structure diagram at position A in the present invention.

[0019] Figure 6 Partial schematic three-dimensional structure diagram of the rotating mechanism of the present invention.

[0020] Figure 7 Schematic three-dimensional structure diagram of the calibration mechanism of the present invention.

[0021] Figure 8 Partial schematic three-dimensional structure diagram of the calibration mechanism of the present invention.

[0022] Figure 9 Schematic three-dimensional structure diagram of the scraping mechanism of the present invention.

[0023] Figure 10 Schematic sectional three-dimensional structure diagram of the second heightening frame of the present invention.

[0024] Figure 11 Separation schematic three-dimensional structure diagram of the scraping mechanism of the present invention.

[0025] Names and serial numbers of components in the figure: 1 - support base, 2 - bottom plate, 31 - first support frame, 32 - second support frame, 33 - first heightening frame, 34 - second heightening frame, 4 - slide rail, 51 - electric slider, 52 - limiting rod, 53 - tool holder, 54 - milling cutter head, 55 - sliding frame, 56 - inclined surface top plate, 57 - arc surface guide frame 1, 58 - arc surface guide frame 2, 59 - magnet block 1, 510 - magnet block 2, 61 - rotating motor, 62 - bushing, 63 - threaded plate, 64 - rotating screw, 65 - extrusion block, 66 - bent plate, 67 - push-pull frame, 68 - extrusion spring, 69 - roller, 71 - vertical rod, 72 - rotating handle, 73 - worm, 74 - straight rod frame, 75 - worm gear, 76 - limiting frame, 77 - square rod frame, 78 - straight rack, 79 - swing frame, 710 - torsion spring, 711 - rotating rod, 712 - pointer, 713 - scale plate, 81 - rotating frame, 82 - gear, 83 - rack bent rod, 84 - support block, 85 - arc surface scraper, 86 - return spring. Detailed implementation manners

[0026] The preferred technical solutions of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Embodiment 1

[0028] A convex turning device for processing bamboo rollers, as Figures 1-11 shown, includes four support bases 1. A bottom plate 2 is fixedly connected between the four support bases 1. One side of the bottom plate 2 is fixedly connected with a first support frame 31, and the side of the bottom plate 2 away from the first support frame 31 is fixedly connected with a second support frame 32. A first heightening frame 33 is fixedly connected to the first support frame 31, and a second heightening frame 34 is fixedly connected to the second support frame 32. A slide rail 4 is fixedly connected between the first heightening frame 33 and the second heightening frame 34. A tool moving mechanism is arranged on the slide rail 4, and the tool moving mechanism is used for turning out an arc surface. A rotating mechanism is arranged on the first support frame 31 and the second support frame 32, and the rotating mechanism is used for driving the cylindrical roller to rotate at a high speed.

[0029] The tool moving mechanism includes an electric slider 51, which is slidably connected to the slide rail 4. Both sides of the electric slider 51 are slidably connected with limiting rods 52. A tool holder 53 is fixedly connected between the two limiting rods 52. A milling cutter head 54 is fixedly connected to the lower part of the tool holder 53. A sliding frame 55 is slidably connected to the tool holder 53. The sliding frame 55 is made of iron. A bevel roof plate 56 is fixedly connected to the first heightening frame 33. One side of the tool holder 53 contacts with the bevel roof plate 56. An arc surface guiding frame one 57 is fixedly connected between one sides of the first heightening frame 33 and the second heightening frame 34, and an arc surface guiding frame two 58 is fixedly connected between the other sides of the first heightening frame 33 and the second heightening frame 34. A convex arc surface and a guiding arc surface are respectively arranged in the middle of the arc surface guiding frame one 57 and the arc surface guiding frame two 58, and the curvature of the guiding arc surface on the arc surface guiding frame two 58 is smaller than the curvature of the convex arc surface on the arc surface guiding frame one 57. A first magnet block 59 is fixedly connected to one side of the arc surface guiding frame one 57, and a second magnet block 510 is fixedly connected to one side of the arc surface guiding frame two 58. One side of the sliding frame 55 contacts with the second magnet block 510.

[0030] The rotating mechanism includes a rotating motor 61, the rotating motor 61 is fixedly connected to the first support frame 31, the upper part of the first support frame 31 is rotatably connected with a clamping sleeve 62, the clamping sleeve 62 is connected to the output shaft of the rotating motor 61, one side of the clamping sleeve 62 is fixedly connected with a threaded plate 63, a rotating screw 64 is connected to the threaded plate 63 by threads, one end of the rotating screw 64 is rotatably connected with a pressing block 65, one side of the second support frame 32 is fixedly connected with a bent plate 66, a push-pull frame 67 is slidably connected to the bent plate 66, a compression spring 68 is connected between the push-pull frame 67 and the bent plate 66, and a roller 69 is rotatably connected to the upper part of the push-pull frame 67.

[0031] In actual work, the pressing roller used for flattening bamboo is usually a columnar roller with a convex arc surface on the side, which is obtained by turning the side of a cylindrical roller. First, the operator pulls the push-pull frame 67 horizontally away from the ferrule 62, compressing the compression spring 68. Then, the operator horizontally inserts one end of the rotating axis of the cylindrical roller to be processed into the ferrule 62. Then, the operator releases the push-pull frame 67, and the compression spring 68 resets and drives the roller 69 to squeeze one end of the cylindrical roller. Then, the operator rotates the rotating screw 64. When the rotating screw 64 rotates, it will drive the extrusion block 65 to move into the ferrule 62. Then, the extrusion block 65 will squeeze one end of the rotating axis of the cylindrical roller, thus clamping the cylindrical roller. Then, the operator first starts the rotating motor 61. The rotating motor 61 will drive the ferrule 62 to rotate. Since the ferrule 62 clamps the cylindrical roller, the ferrule 62 will drive the cylindrical roller to rotate together. The rotation of the cylindrical roller will also drive the roller 69 clamping the other end of the cylindrical roller to rotate through friction. After the cylindrical roller rotates stably, the operator then starts the electric slider 51. The electric slider 51 drives the tool holder 53 and the sliding frame 55 to move horizontally away from the rotating motor 61. Initially, one side of the sliding frame 55 contacts the second magnet block 510 and is attracted by the second magnet block 510, and one side of the sliding frame 55 contacts the arc surface guide frame two 58. Then, when the sliding frame 55 moves horizontally, it will first disengage from the second magnet block 510. Then, after the sliding frame 55 moves horizontally for a certain distance, the milling cutter head 54 starts to contact the side surface of the cylindrical roller. At the same time, the side of the sliding frame 55 close to the arc surface guide frame two 58 will move horizontally along the arc surface on the arc surface guide frame two 58. In this way, when the sliding frame 55 moves horizontally away from the rotating motor 61, it will be guided by the arc surface guide frame two 58. The sliding frame 55 guided by the arc surface guide frame two 58 will drive the milling cutter head 54 to perform a preliminary turning on the side surface of the cylindrical roller, so that a convex arc surface is initially formed on the side surface of the cylindrical roller. When the milling cutter head 54 completes one turning of the side surface of the cylindrical roller, the electric slider 51 stops moving. The sliding frame 55 moves horizontally to the first magnet block 59. Then, the first magnet block 59 will attract one side of the sliding frame 55, causing the sliding frame 55 to move horizontally a certain distance in the direction close to the first magnet block 59 and be attracted by the first magnet block 59, so that one side of the sliding frame 55 disengages from the arc surface guide frame two 58 and the other side contacts the arc surface guide frame one 57. Then, the electric slider 51 moves horizontally and resets in the direction close to the rotating motor 61, driving the sliding frame 55 to move horizontally along the arc surface guide frame one 57 in the direction close to the rotating motor 61 to reset. Then, when the sliding frame 55 moves horizontally in the direction close to the rotating motor 61, it will be guided by the arc surface guide frame one 57. The sliding frame 55 guided by the arc surface guide frame one 57 will drive the milling cutter head 54 to further turn the side surface of the cylindrical roller, so that the convex arc surface is further formed on the side surface of the cylindrical roller, completing the turning of the cylindrical roller. Then, when the tool holder 53 moves horizontally and resets together with the electric slider 51 at the end, it will squeeze the inclined surface top plate 56, driving the sliding frame 55 to move upward a certain distance.When disengaging from the arc-shaped guide frame 1-57, the sliding frame 55 moves upward by a certain distance and will be attracted by the second magnet block 510, causing one side of the sliding frame 55 to contact the second magnet block 510 and also contact the arc-shaped guide frame 2-58, completing the reset. First, the cylindrical roller is transversely clamped, and then two arc turning processes are successively performed on its side. This can first remove possible defects on the side of the unprocessed cylindrical roller, making the arc surface of the processed pressure roller smoother.

[0032] Embodiment 2

[0033] Based on Embodiment 1, as Figures 7-8 shown, it further includes a correction mechanism. The correction mechanism is arranged on the base plate 2 and is used to correct the position of the cylindrical roller. The correction mechanism includes a vertical rod 71. The vertical rod 71 is fixedly connected to one side of the base plate 2 close to the second support frame 32. A rotary handle 72 is rotatably connected to the vertical rod 71. One side of the rotary handle 72 is fixedly connected to a worm 73. A straight rod frame 74 is fixedly connected to the base plate 2. A worm gear 75 is rotatably connected to the straight rod frame 74. The worm gear 75 meshes with the worm 73. A limit frame 76 is fixedly connected to the base plate 2. A square rod frame 77 is placed on the base plate 2. The lower part of the square rod frame 77 passes through the limit frame 76. A straight rack 78 is fixedly connected to one side of the square rod frame 77. The straight rack 78 meshes with the worm gear 75. A swing frame 79 is rotatably connected to the upper part of the square rod frame 77. A torsion spring 710 is connected between the swing frame 79 and the square rod frame 77. Two rotating rods 711 are rotatably connected to the swing frame 79. A pointer 712 is fixedly connected to one side of the swing frame 79. A scale plate 713 is fixedly connected to one side of the square rod frame 77. The scale plate 713 is provided with indicating scales. The lower part of the pointer 712 contacts the scale plate 713, and the lower end of the pointer 712 points to the initial scale.

[0034] After the operator places one end of the cylindrical roller in the ferrule 62 and the other end of the cylindrical roller is squeezed by the rotating roller 69, the operator first rotates the rotating handle 72 counterclockwise. The counterclockwise rotation of the rotating handle 72 will drive the worm 73 to rotate together. The counterclockwise rotation of the worm 73 will drive the straight rack 78 to move slowly upward through the worm gear 75. The upward movement of the straight rack 78 will drive the straight rod frame 74 to move upward. The upward movement of the straight rod frame 74 will drive the swing frame 79 and the rotating rod 711 to move slowly upward together. The upward movement of the rotating rod 711 will contact the rotating shaft of the cylindrical roller. After the two rotating rods 711 contact the rotating shaft of the cylindrical roller, they will maintain the same horizontal state as the cylindrical roller. When the cylindrical roller has a certain inclination angle horizontally, the two rotating rods 711 will also have a certain inclination angle. And due to the self-gravity of the cylindrical roller, the cylindrical roller will only tilt downward toward the side close to the rotating roller 69, causing the torsion spring 710 to be twisted and the pointer 712 to deviate from the initial scale on the scale disk 713. Then the operator continues to rotate the rotating handle 72 counterclockwise, so that the two rotating rods 711 continue to move upward. The continuous upward movement of the rotating rod 711 will lift the side of the cylindrical roller close to the rotating roller 69. Then, as the side of the cylindrical roller close to the rotating roller 69 is slowly lifted upward, the pointer 712 will gradually swing toward the direction close to the initial scale. When the operator observes that the pointer 712 points to the initial scale on the scale disk 713, stop rotating the rotating handle 72. At this time, the cylindrical roller is in a horizontal state. Then the operator rotates the rotating screw 64 again to clamp the cylindrical roller. In this way, the horizontal state of the cylindrical roller is corrected first, and then turning is performed, so that the cylindrical roller is not easy to swing when rotating, thereby making the turning more accurate.

[0035] Embodiment 3

[0036] On the basis of Embodiment 2, as Figures 9-11 shown, it further includes a scraping mechanism. The scraping mechanism is arranged on the second heightening frame 34. The scraping mechanism is used to keep the rotating shaft of the cylindrical roller in a clean state. The scraping mechanism includes a rotating frame 81. The rotating frame 81 is rotatably connected to the second heightening frame 34. Two gears 82 are fixedly connected to the rotating frame 81. A rack bent rod 83 is fixedly connected to the upper part of the push-pull frame 67. The rack bent rod 83 meshes with the two gears 82. One end of the rotating frame 81 is rotatably connected to a support block 84. An arc-shaped scraper 85 is slidably connected to the lower part of the support block 84. A return spring 86 is connected between the arc-shaped scraper 85 and the support block 84.

[0037] An arc-shaped strip is arranged at the lower part of the arc-shaped scraper 85.

[0038] Before placing the cylindrical roller, the operator must first open the push-pull frame 67. When the push-pull frame 67 is horizontally pulled away from the rotating motor 61, it will drive the rack bent rod 83 to move horizontally. The rack bent rod 83 moves horizontally away from the rotating motor 61, which will drive the gear 82 to rotate. The rotation of the gear 82 will drive the rotating frame 81 to swing upward by a certain angle. The upward swing of the rotating frame 81 will lift the support block 84 and the curved scraper 85 upward, which makes it easier to place the cylindrical roller. After the operator places and clamps the cylindrical roller, he releases the push-pull frame 67 to reset it, so that the rotating frame 81 swings downward The support block 84 and the arc scraper 85 are driven to reset downward. The arc scraper 85 will contact the side of the cylindrical roller shaft when it resets downward, and the reset spring 86 is compressed, so that the arc strip at the bottom of the arc scraper 85 is in close contact with the side of the cylindrical roller shaft. Then, when the cylindrical roller is driven by the sleeve 62 to rotate at high speed, the milling head 54 will produce metal debris when turning the cylindrical roller. The arc scraper 85 close to the side of the cylindrical roller shaft will scrape the splashed metal debris from the shaft. In this way, it is not easy for metal debris to be mixed between the cylindrical roller shaft and the two rotating rods 711, and it is not easy to affect the stability of the rotation of the cylindrical roller.

[0039] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A convex turning device for processing bamboo rollers, characterized in that, It includes four support bases (1). A bottom plate (2) is fixedly connected between the four support bases (1). One side of the bottom plate (2) is fixedly connected with a first support frame (31). The side of the bottom plate (2) away from the first support frame (31) is fixedly connected with a second support frame (32). A first heightening frame (33) is fixedly connected to the first support frame (31). A second heightening frame (34) is fixedly connected to the second support frame (32). A slide rail (4) is fixedly connected between the first heightening frame (33) and the second heightening frame (34). A tool moving mechanism is arranged on the slide rail (4), and the tool moving mechanism is used for turning an arc surface. A rotating mechanism is arranged on the first support frame (31) and the second support frame (32), and the rotating mechanism is used for driving the cylindrical roller to rotate at a high speed; It also includes a calibration mechanism. The calibration mechanism is arranged on the bottom plate (2), and the calibration mechanism is used for calibrating the position of the cylindrical roller. The calibration mechanism includes a vertical rod (71). The vertical rod (71) is fixedly connected to the side of the bottom plate (2) close to the second support frame (32). A rotating handle (72) is rotatably connected to the vertical rod (71). A worm (73) is fixedly connected to one side of the rotating handle (72). A straight rod frame (74) is fixedly connected to the bottom plate (2). A worm gear (75) is rotatably connected to the straight rod frame (74). The worm gear (75) meshes with the worm (73). A limiting frame (76) is fixedly connected to the bottom plate (2). A square rod frame (77) is placed on the bottom plate (2). The lower part of the square rod frame (77) passes through the limiting frame (76). A straight rack (78) is fixedly connected to one side of the square rod frame (77). The straight rack (78) meshes with the worm gear (75). A swing frame (79) is rotatably connected to the upper part of the square rod frame (77). A torsion spring (710) is connected between the swing frame (79) and the square rod frame (77). Two rotating rods (711) are rotatably connected to the swing frame (79). A pointer (712) is fixedly connected to one side of the swing frame (79). A scale disk (713) is fixedly connected to one side of the square rod frame (77). An indicating scale is provided on the scale disk (713). The lower part of the pointer (712) contacts the scale disk (713), and the lower end of the pointer (712) points to the initial scale.

2. The convex turning device for processing bamboo rollers according to claim 1, characterized in that, The tool moving mechanism includes an electric slider (51) which is slidably connected to the slide rail (4). Both sides of the electric slider (51) are slidably connected with limit rods (52). A tool rest (53) is fixedly connected between the two limit rods (52). A milling cutter head (54) is fixedly connected to the lower part of the tool rest (53). A sliding frame (55) is slidably connected to the tool rest (53). The sliding frame (55) is made of iron. An inclined surface top plate (56) is fixedly connected to the first height increasing frame (33). One side of the tool rest (53) is in contact with the inclined surface top plate (56). An arc surface guiding frame one (57) is fixedly connected between one sides of the first height increasing frame (33) and the second height increasing frame (34). An arc surface guiding frame two (58) is fixedly connected between the other sides of the first height increasing frame (33) and the second height increasing frame (34). A convex arc surface and a guiding arc surface are respectively arranged in the middle of the arc surface guiding frame one (57) and the arc surface guiding frame two (58). And the curvature of the guiding arc surface on the arc surface guiding frame two (58) is smaller than that of the convex arc surface on the arc surface guiding frame one (57). A magnet block one (59) is fixedly connected to one side of the arc surface guiding frame one (57). A magnet block two (510) is fixedly connected to one side of the arc surface guiding frame two (58). One side of the sliding frame (55) is in contact with the magnet block two (510).

3. A convex turning device for processing bamboo material pressing rollers according to claim 2, characterized in that, The rotating mechanism includes a rotating motor (61) which is fixedly connected to the first support frame (31). A clamping sleeve (62) is rotatably connected to the upper part of the first support frame (31). The clamping sleeve (62) is connected to the output shaft of the rotating motor (61). A threaded plate (63) is fixedly connected to one side of the clamping sleeve (62). A rotating screw rod (64) is connected to the threaded plate (63) by threads. One end of the rotating screw rod (64) is rotatably connected to a pressing block (65). A bent plate (66) is fixedly connected to one side of the second support frame (32). A push-pull frame (67) is slidably connected to the bent plate (66). A compression spring (68) is connected between the push-pull frame (67) and the bent plate (66). A roller (69) is rotatably connected to the upper part of the push-pull frame (67).

4. A convex turning device for processing bamboo material pressing rollers according to claim 3, characterized in that, It further includes a scraping mechanism which is arranged on the second height increasing frame (34) and is used to keep the rotating shaft of the cylindrical roller clean. The scraping mechanism includes a rotating frame (81) which is rotatably connected to the second height increasing frame (34). Two gears (82) are fixedly connected to the rotating frame (81). A rack bent rod (83) is fixedly connected to the upper part of the push-pull frame (67). The rack bent rod (83) is engaged with the two gears (82). One end of the rotating frame (81) is rotatably connected to a support block (84). An arc surface scraping plate (85) is slidably connected to the lower part of the support block (84). A return spring (86) is connected between the arc surface scraping plate (85) and the support block (84).

5. A convex turning device for processing bamboo rollers according to claim 4, characterized in that, An arc-shaped strip is provided at the lower part of the arc-shaped scraping plate (85).

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