A bamboo material self-adaptive centering device for bamboo splitting processing

Abstract

The invention discloses a bamboo material self-adaptive centering device for bamboo splitting processing, comprising at least two groups of roller groups arranged front and back, each group of roller groups comprising two centering rollers arranged up and down, and a centering transmission mechanism is provided on the axial side of the centering roller. The passive centering device of the invention utilizes the power of the bamboo material conveying device in the previous process to push the bamboo to drive the centering rollers apart, and then utilizes the tension of the clamping spring of the centering transmission mechanism to drive the centering rollers to clamp the bamboo segments, and does not need to be equipped with power elements or front sensors, and automatically adapts to different diameters of bamboo segments, ensuring that the center of the bamboo segments with different diameters always coincides with the center of the tool, with low cost and small error.

Description

Technical Field

[0001] The present invention relates to the technical field of centering devices, and particularly to a bamboo material self-adaptive centering device for bamboo splitting processing. Background Art

[0002] The basic process of bamboo material processing is that the bamboo material is divided into bamboo segments with uniform length through a cutting process. The bamboo segments enter the bamboo splitting process through a bamboo material conveying device. The basic requirement for the splitting of bamboo material is that the bamboo strips after splitting should have a certain shape uniformity, that is, the widths of the bamboo strips after splitting the same bamboo segment are basically the same. Therefore, it is necessary to ensure that the axial diameter center of the bamboo segment coincides with the tool center during the bamboo splitting process. In actual processing, the bamboo splitting process is that the bamboo segment contacts the tool along the axis under the drive of an external force, the tool is fixed, and the bamboo segment is forced to be split. Since the diameters of different bamboo segments are different and their axial center positions are also different, and the bamboo material conveying device does not have the function of adjusting the position of the bamboo segment, it is necessary to add a centering device for adjusting the spatial position of the bamboo segment between the bamboo material conveying device and the tool, so that during the bamboo splitting operation, for bamboo segments with different diameters, it can adjust its position, change its center spatial position, and make its diameter center always coincide with the tool center.

[0003] The centering devices in the prior art are as Figure 1 and Figure 2 shown, including four movable plates 41 arranged on a centering frame body 40. The four movable plates 41 are all trapezoidal, and the lower bases are hinged to the centering frame body 40. The four movable plates 41 enclose a bucket-shaped structure. The upper bases of the four movable plates 41 enclose a passing space for the bamboo segment. This passing space is centered with the tool. Between the back surfaces of the four movable plates and the centering frame body, a driving cylinder 42 is provided. By driving the opening and contraction of the movable plates 41 through the driving cylinder 42, the passing space for the bamboo segment enclosed by the upper bases of the four movable plates 41 is adjusted to adapt to bamboo segments with different diameters, and it is ensured that the bamboo segment passing through this passing space is always centered with the tool. The control of the driving cylinder 42 is based on the diameter of the bamboo segment collected and analyzed by an image acquisition module for axial image acquisition of the bamboo segment in a prior process;

[0004] The active centering devices in the prior art need to be additionally equipped with power elements, and the control of the driving cylinder is based on the diameter of the bamboo segment collected and analyzed by the image acquisition module. On the basis of high cost, the overall long control chain is also not conducive to reducing errors. Summary of the Invention

[0005] In order to solve the deficiencies in the prior art, the present invention provides a bamboo adaptive centering device for split bamboo processing. The passive centering device utilizes the power of a bamboo transport device in a previous process to push the bamboo to drive the centering rollers apart, and then utilizes the tension of a clamping spring of a centering transmission mechanism to drive the centering rollers to clamp the bamboo segments. It does not require power elements or front sensors, and automatically adapts to different diameters of bamboo segments to ensure that the center of bamboo segments of different diameters always coincides with the center of the tool. It has low cost and small errors.

[0006] To achieve the above object, the present invention adopts the following technical solution:

[0007] The present invention provides a bamboo material adaptive centering device for bamboo splitting processing, comprising at least two groups of roller groups arranged front and back, each group of roller groups comprising two centering rollers arranged up and down, and the axial side of the centering roller is provided with a centering transmission mechanism;

[0008] The centering transmission mechanism includes a transmission mechanism and a driving mechanism, the transmission mechanism includes a transmission rack and a gear set, the arrangement direction of the transmission rack is parallel to the arrangement direction of the two centering rollers of the roller set, the number of the gear sets is equal to the number of the roller sets and the number of the transmission racks, and different transmission racks are fixedly connected, each gear set includes two transmission gears, the two transmission gears are respectively meshed with the transmission rack, and one end of the transmission rack is connected to a clamping spring;

[0009] The number of the driving mechanisms is equal to and corresponds to the number of the centering rollers. The driving mechanism includes a transmission pulley, a positioning pulley and a guide mechanism. A synchronous belt is sleeved between the transmission pulley and the positioning pulley. The transmission pulley is coaxially connected to the transmission gear. The guide mechanism includes a guide rail. A slider is slidably provided on the guide rail. The slider is connected to the synchronous belt. The axial end of the centering roller is connected to the slider. The guide rails in the driving mechanism corresponding to the two centering rollers of the same roller group are symmetrically arranged up and down.

[0010] The bamboo material adaptive centering device for bamboo splitting processing of the present invention has a space between two centering rollers of all roller groups as a passage space for bamboo segments. When in use, the bamboo segment is pushed by the front bamboo segment conveying device to approach between the two centering rollers of the front roller group. Under the action of the thrust, the bamboo segment spreads the two centering rollers apart. When the centering roller moves, it drives the slider of the centering transmission mechanism to move along the guide rail. The slider drives the synchronous belt to rotate, the synchronous belt drives the transmission pulley to rotate, the transmission pulley rotates and drives the transmission gear to rotate, the transmission gear rotates and drives the transmission rack meshed with it to move downward. When the transmission rack moves downward, the clamping spring is pulled to stretch. Since the transmission gears corresponding to the two centering rollers of the same roller group are respectively meshed on the same transmission rack, when one of the centering rollers moves, its corresponding transmission rack moves. At the same time, it drives another transmission gear to rotate, and drives another centering roller of the same roller group to move synchronously. Due to the fixed connection between different transmission racks, the downward movement of the front transmission rack drives the downward movement of the rear transmission rack, driving the transmission gear corresponding to the rear transmission rack and its corresponding driving mechanism to drive its corresponding centering roller to move. Finally, all the centering rollers move backwards synchronously, and the bamboo section can pass through. The above process is the process of the bamboo section with a larger diameter being stretched to pass through the space. While the centering rollers move backwards, the clamping spring is stretched. When the tension of the clamping spring is retracted, it is finally transmitted in the opposite direction to the centering roller, so that the two centering rollers of the same roller group have a closing clamping force, which clamps the bamboo section. The two centering rollers move the same distance, so that the center of the passing space between the two centering rollers remains unchanged, so that the bamboo section is centered.

[0011] The passive centering device of the present invention utilizes the power of the bamboo material transporting device in the previous process to push the bamboo to drive the centering rollers apart, and then utilizes the tension of the clamping spring of the centering transmission mechanism to drive the centering rollers to clamp the bamboo segments. It does not require power elements or front sensors, and automatically adapts to the different diameters of the bamboo segments, ensuring that the center of the bamboo segments of different diameters always coincides with the center of the tool. It has low cost and small error.

[0012] In a further technical solution, two groups of roller sets are provided, and two transmission racks are provided.

[0013] The four centering rollers of the two roller groups can provide four-point positioning when clamping the bamboo segment, which can meet the stability requirements when centering the bamboo segment. At the same time, the centering transmission mechanism can be more compact and the overall structure can be more compact.

[0014] In a further technical solution, the angle between the extension direction of the guide rail and the extension direction of the transmission rack is an acute angle.

[0015] If there is an angle between the guide rail and the transmission rack, then while the centering rollers move away from each other, the distance between adjacent pairs of roller groups also increases. That is, when clamping a bamboo section with a larger diameter, the distance between the positioning points is greater, ensuring the stability of clamping bamboo sections with different diameters.

[0016] In a further technical solution, the arrangement direction between the transmission pulley and the positioning pulley is parallel to the extension direction of the guide rail.

[0017] The extension direction of the synchronous belt is parallel to the extension direction of the guide rail. That is, the movement of the synchronous belt can drive the slider to move synchronously, with the same moving distance, facilitating the control of centering.

[0018] In a further technical solution, it further includes a centering box. The roller group and the centering transmission mechanism are both arranged inside the centering box. On a pair of opposite sides of the centering box, a centering entrance and a centering exit are respectively provided. The centering entrance is in a funnel shape.

[0019] Setting the box structure facilitates the installation and layout of the centering transmission mechanism, and can also play a certain protective role for its internal components, avoiding external interference. The funnel-shaped centering entrance facilitates the smooth entry of bamboo sections with different diameters.

[0020] In a further technical solution, the centering transmission mechanism is arranged on both axial sides of the roller group.

[0021] The centering transmission mechanism is arranged on both sides of the roller group, that is, it controls the centering rollers on both sides of the centering rollers, and the stability of the centering rollers is better.

[0022] In a further technical solution, the centering roller includes a roller frame, and the shape of the roller frame is that of two frustums of a cone or a frustum of a pyramid with their top surfaces facing each other.

[0023] The roller frame is thick at both ends and thin in the middle, which is convenient for effectively clamping and positioning bamboo sections with different diameters between the two centering rollers, avoiding the radial movement of the bamboo section between the two centering rollers.

[0024] In a further technical solution, a number of rolling rollers are arranged on the two frustums of a cone or frustum of a pyramid of the roller frame. The two ends of each rolling roller are respectively rotatably arranged on the outer surface of the frustum of a cone or frustum of a pyramid, and the number of rolling rollers is arranged in a circumferential array with the axis of the frustum of a cone or frustum of a pyramid as the center.

[0025] Arranging a number of rolling rollers in an array on the surface of the roller frame can reduce the friction between the bamboo section and the centering roller, and the bamboo section can smoothly enter the passing space when contacting any position of the centering roller.

[0026] In a further technical solution, the shape of the rolling roller is frustum-shaped.

[0027] The frustum-shaped rolling rollers are large at one end and small at the other end. The small-end of the rolling rollers is rotatably arranged at the small-end of the frustum or multi-pyramid of the roller frame, and the large-end of the rolling rollers is rotatably arranged at the large-end of the frustum or multi-pyramid of the roller frame. When clamping a bamboo section with a larger diameter, it corresponds to the larger part of the diameter of the rolling rollers; when clamping a bamboo section with a smaller diameter, it corresponds to the smaller part of the diameter of the rolling rollers, and the clamping effect is better.

[0028] In a further technical solution, a central rotating shaft is arranged between the two ends of the roller frame.

[0029] The setting of the central rotating shaft makes the rotation of the roller frame smoother.

[0030] The beneficial effects are as follows:

[0031] 1. The passive centering device of the present invention uses the pushing force of the bamboo transporting device in the previous process to drive the centering rollers to separate, and then uses the pulling force of the clamping spring of the centering transmission mechanism to drive the centering rollers to clamp the bamboo section. It neither needs to be equipped with power components nor requires the cooperation of pre-positioned sensors, can automatically adapt to different diameters of bamboo sections, and ensures that the centers of bamboo sections with different diameters always coincide with the tool center, with low cost and small error.

[0032] 2. The four centering rollers of the two roller groups can provide four-point positioning when clamping the bamboo section, can meet the stability requirements during the centering of the bamboo section, and at the same time, the centering transmission mechanism can be more compact, and the overall structure is more compact.

[0033] 3. There is an angle between the guide rail and the transmission rack. Then, while the centering rollers move away from each other, the distance between adjacent two roller groups also increases. That is, when clamping a bamboo section with a larger diameter, the distance between the positioning points is larger, ensuring the clamping stability of bamboo sections with different diameters.

[0034] 4. The extending direction of the synchronous belt is parallel to the extending direction of the guide rail, that is, the movement of the synchronous belt can drive the slider to move synchronously, and the moving distance is the same, which is convenient for controlling centering.

[0035] 5. Setting the box structure facilitates the installation and layout of the centering transmission mechanism, and can also play a certain protective role for its internal components, avoiding external interference. The funnel-shaped centering entrance facilitates the smooth entry of bamboo sections with different diameters.

[0036] 6. The centering transmission mechanism is arranged on both sides of the roller group, that is, it is controlled on both sides of the centering rollers, and the stability of the centering rollers is better.

[0037] 7. The roller frame is thick at both ends and thin in the middle, which is convenient for effectively clamping and positioning bamboo sections with different diameters between the two centering rollers, and avoids the radial movement of the bamboo section between the two centering rollers.

[0038] 8. A number of rolling rollers are arranged in an array on the surface of the roller rack, which can reduce the friction between the bamboo section and the centering roller, and the bamboo section can smoothly enter the passing space when it contacts the centering roller at any position.

[0039] 9. The frustum-shaped rolling roller, that is, one end is large and the other end is small. Its small end is rotatably arranged at the small end of the frustum or multi-pyramid platform of the roller rack, and its large end is rotatably arranged at the large end of the frustum or multi-pyramid platform of the roller rack. When clamping a bamboo section with a larger diameter, the larger part of the corresponding rolling roller is used; when clamping a bamboo section with a smaller diameter, the smaller part of the corresponding rolling roller is used, and the clamping effect is better.

[0040] 10. The setting of the central rotating shaft makes the rotation of the roller rack smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a front structural schematic diagram of the centering device in the prior art;

[0042] Figure 2 is a back structural schematic diagram of the centering device in the prior art;

[0043] Figure 3 is an overall structural schematic diagram of the bamboo material self-adaptive centering device for bamboo splitting processing in an embodiment of the present invention;

[0044] Figure 4 is an internal structural schematic diagram of the centering box of the bamboo material self-adaptive centering device for bamboo splitting processing in an embodiment of the present invention;

[0045] Figure 5 is a structural schematic diagram of the centering transmission mechanism of the bamboo material self-adaptive centering device for bamboo splitting processing in an embodiment of the present invention;

[0046] Figure 6 is a partial structural schematic diagram of the transmission mechanism of the bamboo material self-adaptive centering device for bamboo splitting processing in an embodiment of the present invention;

[0047] Figure 7 is a schematic diagram of the clamping force transmission direction of the centering transmission mechanism of the bamboo material self-adaptive centering device for bamboo splitting processing in an embodiment of the present invention;

[0048] Figure 8 is a schematic diagram of the spreading force transmission direction of the centering transmission mechanism of the bamboo material self-adaptive centering device for bamboo splitting processing in an embodiment of the present invention when the centering roller is spread apart;

[0049] Figure 9 is a structural schematic diagram of the centering transmission mechanism of the bamboo material self-adaptive centering device for bamboo splitting processing in an embodiment of the present invention when clamping a bamboo section with a smaller diameter;

[0050] Figure 10 It is a schematic structural diagram of the centering transmission mechanism of the bamboo adaptive centering device for bamboo splitting processing in an embodiment of the present invention when clamping a bamboo section with a larger diameter;

[0051] Figure 11 It is a three-dimensional structural schematic diagram of the centering roller of the bamboo adaptive centering device for bamboo splitting processing in an embodiment of the present invention;

[0052] Figure 12 It is the front view of the centering roller of the bamboo adaptive centering device for bamboo splitting processing in an embodiment of the present invention;

[0053] Figure 13 It is Figure 12 The partial enlarged structural schematic diagram at A-A in

[0054] Reference numerals:

[0055] 10, centering box; 11, centering entrance; 12, centering exit; 20, centering roller; 21, roller frame; 22, mounting seat; 23, rolling roller; 24, central rotating shaft; 30, centering transmission mechanism; 31, transmission rack; 311, sliding frame; 312, sliding table; 32, transmission gear; 33, transmission pulley; 34, clamping spring; 35, positioning pulley; 36, guide rail seat; 37, guide rail; 38, slider; 39, synchronous belt; 40, centering frame body; 41, movable plate; 42, driving cylinder. Detailed implementation manners

[0056] The present invention will be further described below with reference to the accompanying drawings:

[0057] Embodiment:

[0058] A bamboo adaptive centering device for bamboo splitting processing, as Figure 4 shown, includes at least two sets of roller groups arranged front and back. Each set of roller groups includes two centering rollers 20 arranged up and down, and a centering transmission mechanism 30 is arranged on the axial side of the centering roller 20;

[0059] In this embodiment, there are two sets of roller groups and two transmission racks 31.

[0060] As Figure 5 and Figure 6 shown, the centering transmission mechanism 30 includes a transmission mechanism and a driving mechanism. The transmission mechanism includes a transmission rack 31 and a gear set. The arrangement direction of the transmission rack 31 is parallel to the arrangement direction of the two centering rollers 20 of the roller group. In this embodiment, the centering rollers 20 are arranged vertically, the transmission rack 31 is arranged vertically, and the number of gear sets is equal to the number of roller groups and the number of transmission racks 31. In this embodiment, as Figure 6As shown, the number of transmission racks 31 is two, and the number of roller groups and gear groups is also two. Different transmission racks 31 are fixedly connected to each other. Each gear group includes two transmission gears 32, and the two transmission gears 32 are respectively meshed with the transmission rack 31. One end of the transmission rack 31 is connected with a clamping spring 34.

[0061] In this embodiment, as Figure 6 shown, the tops of the two transmission racks 31 are fixedly connected to the bottom surface of the slide table 312, so as to realize the synchronous movement between the two transmission racks 31. One end of the clamping spring 34 is connected to the slide table 312. As Figure 5 shown, it further includes a slide frame 311. The slide table 312 is slidably connected to the slide frame 311. The slide frame 311 guides the movement of the slide table 312 and also limits the movement of the slide table 312.

[0062] The number of driving mechanisms is equal to and corresponds one by one to the number of centering rollers 20. In this embodiment, the number of driving mechanisms is four. As Figure 5 shown, the driving mechanism includes a transmission belt pulley 33, a positioning belt pulley 35 and a guiding mechanism. A synchronous belt 39 is sleeved between the transmission belt pulley 33 and the positioning belt pulley 35. The transmission belt pulley 33 is coaxially and drivably connected to the transmission gear 32. The guiding mechanism includes a guide rail 37. Both ends of the guide rail 37 are installed through a guide rail seat 36. A slider 38 is slidably arranged on the guide rail 37. The slider 38 is connected to the synchronous belt 39. The axial end of the centering roller 20 is connected to the slider 38. The guide rails 37 in the driving mechanisms corresponding to the two centering rollers 20 in the same roller group are symmetrically arranged up and down. The positioning belt pulley 35 is installed through a mounting bracket.

[0063] In this embodiment, as Figure 5 shown, the four transmission belt pulleys 33 are all fixedly installed through a cover plate. Correspondingly, the four transmission gears 32 are also fixedly installed through the cover plate.

[0064] For the bamboo material self-adaptive centering device for bamboo splitting processing of the present invention, the space between the two centering rollers 20 of all roller groups is the passing space for the bamboo segments. When in use, the bamboo segments are pushed by the pre-set bamboo segment conveying device to approach between the two centering rollers 20 of the previous roller group. As Figure 8As shown by the middle arrow, under the action of the thrust, the bamboo section spreads the two centering rollers 20 apart. When the centering roller 20 moves, it drives the slider 38 of the centering transmission mechanism 30 to move along the guide rail 37. The slider 38 drives the synchronous belt 39 to rotate. The synchronous belt 39 drives the transmission pulley 33 to rotate. The rotation of the transmission pulley 33 drives the transmission gear 32 to rotate. The transmission gear 32 rotates to drive the transmission rack 31 meshed with it to move downward. When the transmission rack 31 moves downward, the clamping spring 34 is pulled to stretch. Since the transmission gears 32 corresponding to the two centering rollers 20 of the same roller group are respectively meshed on the same transmission rack 31, one of the centering rollers 20 moves. When the bamboo section 20 moves, the corresponding transmission rack 31 drives another transmission gear 32 to rotate while moving, driving another centering roller 20 of the same roller group to move synchronously. Since different transmission racks 31 are fixedly connected, the transmission rack 31 in front moves downward, driving the transmission rack 31 in the back to move downward, driving the transmission gear 32 corresponding to the transmission rack 31 in the back and its corresponding driving mechanism to move, driving the corresponding centering roller 20 to move, and finally all the centering rollers 20 move backwards synchronously, so that the bamboo section can pass through. The above-mentioned process is the process of the bamboo section with a larger diameter being stretched to pass through the space. When the centering rollers 20 move backwards, the clamping spring 34 is stretched. Figure 7 As shown by the middle arrow, when the tension of the retracted clamping spring 34 is finally transmitted in the reverse direction to the centering roller 20, the two centering rollers 20 of the same roller group have a closing clamping force, which clamps the bamboo section. The two centering rollers 20 move the same distance, so that the center of the passing space between the two centering rollers 20 remains unchanged, so that the bamboo section is centered.

[0065] It can be understood that the process of stretching the clamping spring 34 while the centering roller 20 is stretched is also a process of storing the clamping force of the clamping spring 34. The larger the diameter of the bamboo segment, the longer the length of the stretched clamping spring 34, the stronger the clamping force, and the better the clamping and positioning effect for larger bamboo segments.

[0066] The bamboo section is shown as follows: Figure 9 and Figure 10 As shown, during the expansion process, the distances moved by the two centering rollers 20 of the same roller group are synchronized by the transmission rack 31. On the basis of the two centering rollers 20 moving the same distance in opposite directions, the center is guaranteed to remain unchanged, that is, the centering is guaranteed. Figure 9 and Figure 10 The dotted line in the figure is the center line of the bamboo segment.

[0067] The passive centering device of the present invention utilizes the pushing force of the bamboo transporting device in the previous process to drive the centering rollers 20 to separate, and then utilizes the pulling force of the clamping spring 34 of the centering transmission mechanism 30 to drive the centering rollers 20 to clamp the bamboo section. It neither requires a power element nor a pre - installed sensor, and can automatically adapt to different diameters of bamboo sections, ensuring that the centers of bamboo sections with different diameters always coincide with the tool center, with low cost and small error.

[0068] The four centering rollers 20 of the two roller groups can provide four - point positioning when clamping the bamboo section, which can meet the stability requirements during the centering of the bamboo section. At the same time, the centering transmission mechanism 30 can be more compact, and the overall structure is more compact.

[0069] In another embodiment, as Figure 5 shown, the included angle between the extending direction of the guide rail 37 and the extending direction of the transmission rack 31 is an acute angle.

[0070] There is an angle between the guide rail 37 and the transmission rack 31. Then, while the centering rollers 20 move away from each other, the distance between adjacent roller groups also increases. That is, when clamping a bamboo section with a larger diameter, the distance between the positioning points is larger, ensuring the stability of clamping bamboo sections with different diameters.

[0071] It can be understood that the guide rail 37 directly determines the moving direction of the centering rollers 20. In the previous embodiment, the guide rail 37 can be parallel to the transmission rack 31, which does not affect the opening of the centering rollers 20. However, while the centering rollers 20 open, the distance between adjacent roller groups always remains unchanged. When positioning a bamboo section with a larger diameter, the positioning points may be too close, which may cause the end of the bamboo section to warp, affecting the centering effect.

[0072] In this embodiment, the included angle between the guide rail 37 and the transmission rack 31 is 45°, and the positions of the respective sliders 38 on the guide rail 37 are the same. As Figure 5 shown, the connection lines between the centers of the respective sliders 38 enclose a square. While the centering rollers 20 open or close, the four intersection points of this square extend synchronously outward in the 45° direction, that is, the connection lines between the centers of the respective sliders 38 always enclose a square and the center remains unchanged.

[0073] In another embodiment, as Figure 5 shown, the arrangement direction between the transmission pulley 33 and the positioning pulley 35 is parallel to the extending direction of the guide rail 37.

[0074] The extending direction of the synchronous belt 39 is parallel to the extending direction of the guide rail 37, that is, the movement of the synchronous belt 39 can drive the slider 38 to move synchronously, with the same moving distance, facilitating the control of centering.

[0075] It is understandable that the synchronous belt 39 is parallel to the guide rail 37, that is, the moving distance of the synchronous belt 39 is 1:1 to the moving distance of the slider 38.

[0076] In another embodiment, as Figure 3 and Figure 4 shown, it further includes an alignment box 10. The roller group and the alignment transmission mechanism 30 are both arranged in the alignment box 10. An alignment inlet 11 and an alignment outlet 12 are respectively opened on a pair of opposite side surfaces of the alignment box 10. The alignment inlet 11 is in a funnel shape.

[0077] Setting the box structure facilitates the installation and layout of the alignment transmission mechanism 30, and can also play a certain protective role for its internal components to avoid external interference. The funnel-shaped alignment inlet 11 facilitates the smooth entry of bamboo segments with different diameters.

[0078] In another embodiment, as Figure 4 shown, the alignment transmission mechanism 30 is arranged on both axial sides of the roller group.

[0079] The alignment transmission mechanism 30 is arranged on both sides of the roller group, that is, it is controlled on both sides of the alignment roller 20, and the stability of the alignment roller 20 is better.

[0080] In another embodiment, as Figure 11 and Figure 12 shown, the alignment roller 20 includes a roller frame 21, and the shape of the roller frame 21 is the shape of two frustums of a cone or a frustum of a pyramid with their top surfaces facing each other.

[0081] The roller frame 21 is thick at both ends and thin in the middle, which is convenient for effectively clamping and positioning bamboo segments with different diameters between the two alignment rollers 20, and avoids the radial movement of the bamboo segments between the two alignment rollers 20.

[0082] In another embodiment, as Figure 11 and Figure 12 shown, a number of rolling rollers 23 are arranged on the two frustums of a cone or frustums of a pyramid of the roller frame 21. The two ends of the rolling rollers 23 are respectively rotatably arranged on the outer surface of the frustum of a cone or frustum of a pyramid, and the number of rolling rollers 23 is arranged in a circumferential array with the axis of the frustum of a cone or frustum of a pyramid as the center.

[0083] Arranging a number of rolling rollers 23 on the surface of the roller frame 21 can reduce the friction between the bamboo segment and the alignment roller 20, and the bamboo segment can smoothly enter the passing space when contacting any position of the alignment roller 20.

[0084] In another embodiment, as Figure 11 and Figure 12 shown, the shape of the rolling roller 23 is frustum-shaped.

[0085] The frustum-shaped rolling roller 23, i.e., with one end larger and the other end smaller, has its smaller end rotatably arranged at the smaller end of the frustum or multi-pyramid platform of the roller frame 21, and its larger end rotatably arranged at the larger end of the frustum or multi-pyramid platform of the roller frame 21. When clamping a bamboo section with a larger diameter, it corresponds to the larger part of the diameter of the rolling roller 23, and when clamping a bamboo section with a smaller diameter, it corresponds to the smaller part of the diameter of the rolling roller 23, resulting in a better clamping effect.

[0086] In another embodiment, as Figure 11 and Figure 13 shown, a central rotating shaft 24 is arranged between the two ends of the roller frame 21.

[0087] The setting of the central rotating shaft 24 makes the rotation of the roller frame 21 smoother.

[0088] As Figure 13 shown, mounting seats 22 are arranged at the two ends of the roller frame 21. The mounting seats 22 are used to connect with the slider 38, and bearings are arranged on the mounting seats 22. Since the centering roller 20 will rotate relative to the slider 38 during the moving process, the bearings are arranged.

[0089] In another embodiment, three or more roller groups are provided, and the number of the transmission mechanisms and the driving mechanisms is also correspondingly more. However, all the transmission racks 31 are connected by connecting pieces to ensure synchronous movement.

[0090] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. An adaptive centering device for bamboo processing, characterized in that, It comprises at least two groups of roller groups arranged front and back, each group of roller groups comprises two centering rollers arranged up and down, and the axial side of the centering roller is provided with a centering transmission mechanism; The centering transmission mechanism includes a transmission mechanism and a driving mechanism, the transmission mechanism includes a transmission rack and a gear set, the arrangement direction of the transmission rack is parallel to the arrangement direction of the two centering rollers of the roller set, the number of the gear sets is equal to the number of the roller sets and the number of the transmission racks, and different transmission racks are fixedly connected, each gear set includes two transmission gears, the two transmission gears are respectively meshed with the transmission rack, and one end of the transmission rack is connected to a clamping spring; The number of the driving mechanisms is equal to and corresponds to the number of the centering rollers. The driving mechanisms include a driving pulley, a positioning pulley and a guide mechanism. A synchronous belt is sleeved between the driving pulley and the positioning pulley. The driving pulley is coaxially connected to the transmission gear. The guide mechanism includes a guide rail. A slider is slidably provided on the guide rail. The slider is connected to the synchronous belt. The axial end of the centering roller is connected to the slider. It also includes a centering box, the roller group and the centering transmission mechanism are both arranged in the centering box, and a centering inlet and a centering outlet are respectively opened on opposite sides of the centering box, and the centering inlet is bucket-shaped; The centering roller comprises a roller frame, and the roller frame is in the shape of a truncated cone or a multi-faceted pyramid with two top surfaces arranged opposite to each other; A plurality of rolling rollers are arranged on the two truncated cones or polygonal cones of the roller frame, and the two ends of the rolling rollers are rotatably arranged on the outer surface of the truncated cone or polygonal cone, and the plurality of rolling rollers are arranged in a surrounding array with the axis of the truncated cone or polygonal cone as the center.

2. The bamboo material adaptive centering device for bamboo splitting processing according to claim 1, characterized in that, The roller groups are provided in two groups, and the transmission racks are provided in two groups.

3. The bamboo material self-adaptive centering device for bamboo splitting processing according to claim 1 or 2, characterized in that, The included angle between the extending direction of the guide rail and the extending direction of the transmission rack is an acute angle.

4. The bamboo material self - adaptive centering device for bamboo splitting processing according to claim 3, characterized in that, The arrangement direction between the driving pulley and the positioning pulley is parallel to the extension direction of the guide rail.

5. The bamboo material self-adaptive centering device for bamboo splitting processing according to claim 1, characterized in that, The centering transmission mechanism is arranged on both axial sides of the roller assembly.

6. The bamboo material self - adapting centering device for bamboo splitting processing according to claim 1, characterized in that, The rolling roller is in the shape of a truncated cone.

7. The bamboo material adaptive centering device for bamboo splitting processing according to claim 1, characterized in that, A central rotating shaft is provided between the two ends of the roller frame.

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